Flow based packet manipulation congestion control

This disclosure relates to a Radio Network Controller, RNC, a base station, and to methods therein. By extracting information from one or more flows of Protocol Data Units, PDUs, which information is accessible on a certain protocol layer only, congestion control is enabled and performed on another protocol layer based on said information. The present disclosure avoids that inappropriate PDUs are discarded, which else would inappropriately affect the user performance.

Non-congestive loss in HSPA congestion control

A method and a network node for increased utilization of a transport network link over a transport network of a HSPA system. The method comprises detecting a data packet loss in receiving a data packet flow, and detecting data delay information of data packets as received. The method also comprises determining if the detected data packet loss comprise non-congestive data packet loss, based on the detected data packet loss and the detected data delay information. In addition, the method comprises, when the detected data packet loss comprises non-congestive data packet loss, for a pre-determined time period, omitting to perform a congestion action affecting the data packet flow. By determining whether a data packet loss is non-congestive or not, an unnecessary reduction of the bitrate over the transport network can be omitted.

FLOW BASED PACKET MANIPULATION CONGESTION CONTROL

This disclosure relates to a Radio Network Controller, RNC, a base station, and to methods therein. By extracting information from one or more flows of Protocol Data Units, PDUs, which information is accessible on a certain protocol layer only, congestion control is enabled and performed on another protocol layer based on said information. 1. A method in a first network node of a communication network , for marking of Protocol Data Units , PDUs on a first protocol layer , the method comprising:receiving PDUs of a flow on a second protocol layer;extracting information about said flow and storing said information being extracted;marking PDUs on the first protocol layer, where said first protocol layer PDUs being marked correspond to second protocol layer PDUs that are appropriate for manipulation based on said stored information; andsending PDUs on the first protocol layer that is a lower protocol layer than said second protocol layer.2. The method in a first network node according to claim 1 , wherein the information about said flow claim 1 , in the extracting information comprises at least one of: a protocol or application type of the flow claim 1 , a source IP address claim 1 , a destination IP address claim 1 , a source port and a destination port claim 1 , which all are at least associated with the flow.3. The method in a first network node according to claim 1 , wherein the stored information on which the marking of the first protocol layer PDUs is based claim 1 , comprises at least one of: timing information claim 1 , packet size information and number of packets claim 1 , of received second protocol layer PDUs of said flow.4. The method in a first network node according to claim 1 , further comprising identifying second protocol layer PDUs that are appropriate for manipulation based on the stored information claim 1 , and wherein the marking of PDUs on the first protocol layer comprises marking of first protocol layer PDUs that correspond to the identified ...

Method and Apparatus Relating to Congestion Control

A method and apparatus for enabling service aware congestion control of PS (Packet Switched) data to be performed in a communication network. In the communication network PS data is communicated between a core network of the communication network and one or more User Equipments, UE, via the communication network node. Each UE is associated to the core network by one or more PS connections, and each of the PS connections is applied by the UE for a respective PS data service. When performing the service aware congestion control, information related to a respective PS data service is obtained, and priority information is provided to a resource manager arranged in the communication network. The priority information is based on the information related to the respective PS data service for a plurality of the PS connections. The resource manager is then enabled to perform congestion control of the PS connections based on the priority information. By determining for which PS data services the PS connections are currently applied, and prioritise the PS connections accordingly, the communication network node may reallocate RAN communication resources to higher prioritised PS data services from less prioritised PS data services. Thereby, a more flexible and effective use of available RAN communication resources may be achieved. 121-. (canceled)22. A method in a communication network node for a communication network for enabling congestion control of Packet Switched (PS) data , in the communication network , the PS data being communicated between a core network of the communication network and one or more User Equipments (UEs) via the communication network node , where each UE is associated to the core network by one or more PS connections , and each of the PS connections is applied by the UE for a respective PS data service , the method comprising:obtaining information related to the respective PS data service; andproviding priority information to a resource manager arranged ...

Technique for Operating a Radio Network Controller During a Soft Handover Process

A technique for operating an RNC of a communication network during a soft handover process of a mobile terminal between a first BS and at least one second BS that are connected to the RNC is provided. A method implementation of the technique comprises receiving, at a MAC protocol layer of the RNC, a first data frame stream from the first BS via a first data path and a second data frame stream from the second BS via a second data path. A relative delay between the data frames of the first and the second data frame stream regarding their arrival at the RNC is determined. The relative delay takes into account different systematic propagation durations from the first BS and the second BS to the RNC. At then the MAC protocol layer, data frames of the first and the second data frame stream are then merged into a third data frame stream which is transmitted to a protocol layer above the MAC protocol layer. The merging of the data frames is carried out in dependence on the relative delay. 120-. (canceled)21. A method of operating a Radio Network Controller (RNC) of a communication network during a soft handover process of a mobile terminal between a first base station (BS) and at least one second BS that are connected to the RNC , the method comprising:receiving, at a Medium Access Control (MAC) protocol layer of the RNC, a first data frame stream from the first BS via a first data path and a second data frame stream from the second BS via a second data path;determining a relative delay between the data frames of the first data frame stream and the second data frame stream regarding their arrival at the RNC; wherein the relative delay takes into account different systematic propagation durations from the first BS and the second BS to the RNC;merging, at the MAC protocol layer, data frames of the first and second data frame streams into a third data frame stream which is transmitted to a protocol layer above the MAC protocol layer, wherein the merging of the data frames is ...

Transmission of a packet data convergence protocol (PDCP) protocol data unit (PDU) in a wireless communication network

A method performed by a network node for transmission of a Packet Data Convergence Protocol, PDCP, Protocol Data Unit, PDU, to a wireless communications device is provided. The network node and the wireless communications device operate in a wireless communications network. The network node arranges (505) a number of PDCP PDUs in a numerical order based on their respective PDCP Sequence Number, SN. The number of PDCP PDUs is taken from a first set of PDCP PDUs comprising one or more first time transmitted PDCP PDUs and from a second set of PDCP PDUs comprising one or more retransmitted PDCP PDUs. The one or more first time transmitted PDCP PDUs and the one or more retransmitted PDCP PDUs are received from a controlling node. The network node transmits (506) the number of the PDCP PDUs in the numerical order to the wireless communications device 120.

5G congestion control

A split radio access architecture comprises a packet processing node and one or more baseband processing nodes. The packet processing node receives, from a baseband processing node, first feedback corresponding to air interface congestion between the baseband processing node and a wireless device receiving packets from the baseband processing node. The packet processing node also receives, from the baseband processing node, second feedback corresponding to transport network congestion of a transport interface between the packet processing node and the baseband processing node. The packet processing node transmits user data to the baseband processing node based on the received first and second feedback.

Transmitting device and method performed therein for handling communication

Embodiments herein relate to a method performed by a transmitting device ( 120 ) for handling communication in a wireless communications network, wherein the transmitting device ( 120 ) comprises at least two radio link control, RLC, entities and is configured with a split bearer to a receiving device ( 100 ). The transmitting device ( 120 ) identifies that a last transmitted protocol data unit, PDU, of one of the at least two RLC entities, is lacking a poll indicator requesting a status of one or more transmitted PDUs. When identifying that the last transmitted PDU lacks the poll indicator, the transmitting device transmits to the receiving device ( 100 ), a PDU comprising a poll indicator.

QOS FLOW MANAGEMENT OVER E1

A method is provided by a central-unit-control plane (CU-CP) of a network node for exchanging information with a central-unit user plane (CU-UP) of the network node to manage Quality of Service (QoS) flows for the optimization of radio resources. The method includes transmitting, to the CU-UP, a request for flow information for at least one QoS flow and receiving, from the CU-UP of the network node, the flow information for the at least one QoS flow. Based on the flow information for the at least one QoS flow, at least one action is taken. 1. A method performed by a central-unit-control plane (CU-CP) of a network node for exchanging information with a central-unit user plane (CU-UP) of the network node to manage Quality of Service (QoS) flows for the optimization of radio resources , the method comprising:transmitting, to the CU-UP, a request for flow information for at least one QoS flow; andreceiving, from the CU-UP of the network node, the flow information for the at least one QoS flow; andbased on the flow information for the at least one QoS flow, taking at least one action.220.-. (canceled)21. A network node for managing Quality of Service (QoS) flows for the optimization of radio resources , the network node comprising:processing circuitry operating as a central-unit-control plane (CU-CP) of the network node, the processing circuitry configured to:transmit, to a central-unit-user plane (CU-UP) of the network node, a request for flow information for at least one QoS flow;receive, from the CU-UP of the network node, the flow information for the at least one QoS flow; andbased on the flow information for the at least one QoS flow, take at least one action.22. The network node of claim 21 , wherein the processing circuitry is further configured to:prior to receiving the flow information for the at least one QoS flow:establish a default data radio bearer (DRB);map a plurality of QoS flows to the default DRB, the plurality of QoS flows including the at least one ...

Method and apparatuses for determining priority of a wireless terminal

A method for determining a priority of a mobile subscriber in a cellular network. The method is performed in a radio network node and comprises the steps of: obtaining a temporary mobile subscriber identity, TMSI, associated with a priority affecting event; storing the TMSI associated with the event, as at least part of an indication of priority; receiving a connection request from a wireless terminal of the mobile subscriber, the connection request comprising a TMSI; and determining a priority of the wireless terminal based on whether the TMSI of the connection request matches a stored TMSI or not.

Transmitting Device and Method Performed Therein for Handling Communication

Embodiments herein relate to a method performed by a transmitting device (120) for handling communication in a wireless communications network, wherein the transmitting device (120) comprises at least two radio link control, RLC, entities and is configured with a split bearer to a receiving device (100). The transmitting device (120) identifies that a last transmitted protocol data unit, PDU, of one of the at least two RLC entities, is lacking a poll indicator requesting a status of one or more transmitted PDUs. When identifying that the last transmitted PDU lacks the poll indicator, the transmitting device transmits to the receiving device (100), a PDU comprising a poll indicator.

Controlling Establishment of Multiple TCP Connections

A TCP connection controller () for controlling 3-way handshakes establishing multiple TCP connections between an initiating network node and another network node is described. It includes a TCP pressure limiter () configured to limit TCP pressure during network congestion by reducing the rate of a TCP message type (SYN, SYN-ACK, ACK) participating in the 3-way handshakes. 132-. (canceled)33. A method of controlling 3-way handshakes establishing multiple TCP connections between an initiating network node and another network node , said method comprising:limiting TCP pressure during network congestion by reducing the rate of a TCP message type participating in the 3-way handshakes.34. The method of claim 33 , wherein reducing the rate comprises reducing a TCP SYN message rate.35. The method of claim 34 , wherein the TCP SYN message rate is reduced by delaying TCP SYN messages.36. The method of claim 35 , further comprising:estimating a current TCP SYN message rate; anddelaying a TCP SYN message by a predetermined time period, if the estimated current TCP SYN message rate exceeds a predetermined TCP SYN message rate threshold.37. The method of claim 36 , wherein the predetermined TCP SYN message rate threshold comprises a dynamical predetermined TCP SYN message rate threshold.38. The method of claim 35 , further comprising:estimating a current number of active TCP connections; anddelaying a TCP SYN message by a predetermined time period if the estimated current number of active TCP connections exceeds a predetermined active connections threshold.39. The method of claim 38 , wherein the predetermined active connections threshold comprises a dynamical predetermined active connections threshold.40. The method of claim 34 , wherein the TCP SYN message rate is reduced by discarding TCP SYN messages.41. The method of claim 40 , further comprising:estimating a current TCP SYN message rate; anddiscarding a TCP SYN message if the estimated current TCP SYN message rate exceeds a ...

Methods and Apparatuses for Recovering Data Packet Flow Control Against Radio Base Station Buffer Run Away

Recovery control is provided for recovering data packet flow control between a network node and a radio base station over a radio network interface. The base station communicates with at least one user equipment, UE, over a radio interface and measures information relating to a data transmission rate over the radio interface and an amount of a downlink packet queue in the base station associated with the UE communication. In one embodiment, the base station sends at least some of the measurement information to the network node. A process controller in the network node processes the measurement information to determine a desired amount to be stored in the downlink packet queue. The process controller determines a commanded bit rate to transmit data from the network node to the downlink packet queue based on the determined desired amount and transmits data to the radio base station in accordance with the commanded bit rate. 1. A method of operation at a radio network controller , the method comprising:sending data over a transport network to a radio base station for transmission over a radio interface to a user equipment, the data belonging to a data flow targeting the user equipment and accumulating in a buffer at the radio base station in dependence on a difference between a first transmit rate used by the radio network controller for sending data belonging to the data flow to the radio base station over the transport network and a second transmit rate used by the radio base station for transmitting data from the buffer over the radio interface to the user equipment;activating and maintaining a recovery flow control mode at the radio network controller for the data flow responsive to receiving measurement signaling from the radio base station for the data flow, the radio base station being configured to begin sending and continue sending the measurement signaling responsive to the accumulated data exceeding a first defined threshold, each instance of the measurement ...

Flow Control in Wireless Communication Systems

The proposed technology generally relates to a method for controlling multi-point data transmission between a primary node () and a User Equipment, UE, via secondary nodes (). The method comprises the steps of obtaining (S) Round-Trip Time, RTT, values (T) between a primary node () and two or more secondary nodes (). The method further comprises determining (S) a time value relationship (α) between uplink and downlink for each of the obtained RTT values; determining (S) a first queue dwell time (T) in a first secondary node () of the two or more secondary nodes (); and determining (S) a second queue dwell time (T) in a second secondary node () of the two or more secondary nodes (), the second queue dwell time (T) being determined at least partly based on the RTT values (T), the time value relationship (α) and the determined first queue dwell time (T). The method further comprises initiating control (S) of the first and second queue dwell times for synchronized data arrival in the UE. 130-. (canceled)31. A method for controlling multi-point data transmission between a primary node and a User Equipment (UE) via secondary nodes , the method comprising the steps of:obtaining Round-Trip Time (RTT) values between a primary node and two or more secondary nodes;determining a time value relationship between uplink and downlink for each of the obtained RTT values;determining a first queue dwell time in a first secondary node of the two or more secondary nodes; anddetermining a second queue dwell time in a second secondary node of the two or more secondary nodes, the second queue dwell time being determined at least partly based on the RTT values, the time value relationship, and the determined first queue dwell time; andinitiating control of the first and second queue dwell times for synchronized data arrival in the UE.32. The method of claim 31 , wherein the step of determining a time value relationship comprises setting the time value relationship to a value that is the ...

NR User Plane Signaling Controlled Triggering of PDCP Duplication

In one aspect, one or more network nodes configured control the use of data duplication (DD) for a UE simultaneously served by two or more distributed transmission units (DUs) receive from one or more of the DUs, feedback information. The one or more network nodes determine, based on the feedback information, whether to activate DD for transmissions to the UE. 129-. (canceled)30. A method , in one or more network nodes of a wireless communication system , for controlling the use of data duplication (DD) for a user equipment (UE) simultaneously served by two or more distributed transmission units (DUs) , the method comprising:receiving, from one or more of the DUs, feedback information; anddetermining, based on the feedback information, whether to activate DD for transmissions to the UE.31. The method of claim 30 , wherein the feedback information comprises and the determining is based on radio quality information.32. The method of claim 30 , wherein the feedback information comprises and the determining is based on any one or more of:a Signal to Noise Ratio (SNR) for a link between the UE and the respective DU;a Channel Quality Indicator (CQI) for a link between the UE and the respective DU;a Reference Signal Received Power (RSRP) for a link between the UE and the respective DU;a Reference Signal Received Quality (RSRQ) for a link between the UE and the respective DU; andan average Receive Signal Strength Indicator (RSSI) for a link between the UE and the respective DU.33. The method of claim 31 , wherein the feedback information is reported on a per-channel basis.34. The method of claim 30 , wherein the feedback information comprises load and/or congestion information for the respective DU claim 30 , and the determining is based on the load and/or congestion information.35. The method of claim 34 , wherein said determining is based on an evaluation of load and/or congestion information for all of the two or more DUs.36. The method of claim 30 , wherein the feedback ...

First unit, second unit and methods in a wireless communications network

A method performed by a first unit for handling a connection between the first unit and multiple second units in a wireless communications network is provided. The first unit obtains from each of the multiple second units a respective indication of which one or more version of NR User plane protocol (NR-U) it supports. The first unit decides which version of NR-U that is possible to use for the connection based on the indications received from the multiple second units.

Radio network controller and a method therein for managing a random access channel

A Radio Network Controller, RNC, and a method performed by the RNC for managing the utilization of a RACH of a WCDMA communication network wherein the RNC is associated with an RBS, wherein the RACH is an uplink channel between UEs and the RBS are provided. The method comprises determining a current resource utilization level of the RACH; setting, based on the determined resource utilization, a value of at least one Radio Link Control, RLC, parameter that controls the disposition of a UE to transmit data on the RACH; and employing the at least one RLC parameter to at least one UE being in a Cell Forward Access Channel, CELL_FACH, state or entering into the CELL_FACH state.

Transmitting device and method performed therein for handling communication

Embodiments herein relate to a method performed by a transmitting device (120) for handling communication in a wireless communications network, wherein the transmitting device (120) comprises at least two radio link control, RLC, entities and is configured with a split bearer to a receiving device (100). The transmitting device (120) identifies that a last transmitted protocol data unit, PDU, of one of the at least two RLC entities, is lacking a poll indicator requesting a status of one or more transmitted PDUs. When identifying that the last transmitted PDU lacks the poll indicator, the transmitting device transmits to the receiving device (100), a PDU comprising a poll indicator.

Transmitting Device and Method Performed Therein for Handling Communication

Embodiments herein relate to a method performed by a transmitting device () for handling communication in a wireless communications network, wherein the transmitting device () comprises at least two radio link control, RLC, entities and is configured with a split bearer to a receiving device (). The transmitting device () identifies that a last transmitted protocol data unit, PDU, of one of the at least two RLC entities, is lacking a poll indicator requesting a status of one or more transmitted PDUs. When identifying that the last transmitted PDU lacks the poll indicator, the transmitting device transmits to the receiving device (), a PDU comprising a poll indicator. 1. A method performed by a transmitting device for handling communication in a wireless communications network , wherein the transmitting device comprises at least two radio link control , RLC , entities and is configured with a split bearer to a receiving device , the method comprising:identifying that a last transmitted protocol data unit (PDU) of one of the at least two RLC entities is lacking a poll indicator requesting a status of one or more transmitted PDUs; andresponsive to identifying that the last transmitted PDU lacks the poll indicator, transmitting, to the receiving device, a PDU comprising a poll indicator.2. The method according to claim 1 , wherein the PDU comprising the poll indicator is another PDU with the poll indicator or the same PDU as the last transmitted PDU retransmitted with the poll indicator.3. The method according to claim 1 , wherein identifying that the last transmitted PDU is lacking the poll indicator is performed in the event that transmission on one or more of the at least two RLC entities is stopped or switched to another RLC entity while data still awaits in higher layers associated to a first RLC entity.4. The method according to claim 1 , wherein the PDU comprising the poll indicator is transmitted when no further upper layer transmit buffer data is available for ...

NON-CONGESTIVE LOSS IN HSPA CONGESTION CONTROL

A method and a network node for increased utilization of a transport network link over a transport network of a HSPA system. The method comprises detecting a data packet loss in receiving a data packet flow, and detecting data delay information of data packets as received. The method also comprises determining if the detected data packet loss comprise non-congestive data packet loss, based on the detected data packet loss and the detected data delay information. In addition, the method comprises, when the detected data packet loss comprises non-congestive data packet loss, for a pre-determined time period, omitting to perform a congestion action affecting the data packet flow. By determining whether a data packet loss is non-congestive or not, an unnecessary reduction of the bitrate over the transport network can be omitted. 1. A method for increased utilization of a transport network link in receiving a data packet flow from a first network node over the transport network of a high-speed packet access , HSPA , system , the method being performed in a second network node , the method comprising:detecting a data packet loss in receiving a data packet flow, detecting data delay information of data packets of the data packet flow as received from the first network node,determining if the detected data packet loss comprise non-congestive data packet loss, based on the detected data packet loss and the detected data delay information, andwhen the detected data packet loss comprises non-congestive data packet loss, for a pre-determined time period omitting to perform a congestion action towards the first network node affecting the data packet flow.2. The method according to claim 1 , wherein determining comprises determining if the data delay of received data packets is within a pre-defined delay threshold or if a time dependence of the data delay of data packets being received is decreasing with time.3. The method according to claim 1 , further comprising determining the ...

Methods and Apparatuses for Recovering Data Packet Flow Control Against Radio Base Station Buffer Run Away

Recovery control is provided for recovering data packet flow control between a network node () and a radio base station () over a radio network interface (). The base station communicates with at least one user equipment, UE, () over a radio interface () and measures information relating to a data transmission rate over the radio interface and an amount of a downlink packet queue () in the base station associated with the UE communication. In one embodiment, the base station sends at least some of the measurement information to the network node. A process controller () in the network node processes the measurement information to determine a desired amount to be stored in the downlink packet queue. The process controller determines a commanded bit rate to transmit data from the network node to the downlink packet queue based on the determined desired amount and transmits data to the radio base station in accordance with the commanded bit rate. 130-. (canceled)31. A recovery control method for recovering data packet flow control between a network node and a radio base station over a radio network interface , the base station communicating with at least one user equipment , UE , over a radio interface , the method implemented in the network node comprising:obtaining measurement information relating to a data transmission rate over the radio interface from the radio base station to the at least one UE and an amount of a downlink packet queue in the base station associated with the UE communication;processing the measurement information, by a process controller in the network node, to determine a desired amount to be stored in the downlink packet queue;determining, by the process controller, a commanded bit rate to transmit data from the network node to the downlink packet queue based on the determined desired amount; andtransmitting, by the network node, data to the radio base station in accordance with the commanded bit rate.32. The recovery control method in claim 31 ...

Method and apparatus for determining latency and throughput of a data communication

The technology in this application determines the throughput over a data communication substantially as experienced by a user receiving the data. The determined throughput is substantially independent of the total amount of data transferred over the connection. This active throughput measure is divided into two parts to provide two performance measures: transfer throughput and latency. Latency corresponds to a time period needed to accomplish one or more functions associated with the data connection, like setting up and taking down the connection, during which payload type data to be transferred to an end user is not transferred. By identifying and removing the initial latency from the throughput determination for the data connection, the determined transfer throughput provides a more accurate measure of the throughput actually experienced by the end user.

Methods and Apparatuses for Operating a Radio Network Controller During a Soft Handover Process

A technique for operating an RNC of a communication network during a soft handover process of a mobile terminal between a first BS and at least one second BS that are connected to the RNC is provided. A method implementation of the technique comprises receiving, at a MAC protocol layer of the RNC, a first data frame stream from the first BS via a first data path and a second data frame stream from the second BS via a second data path. A relative delay between the data frames of the first and the second data frame stream regarding their arrival at the RNC is determined. At then the MAC protocol layer, data frames of the first and the second data frame stream are then merged into a third data frame stream which is transmitted to a protocol layer above the MAC protocol layer. The merging of the data frames comprises a reordering process of the data frames and wherein, if the relative delay for a data frame exceeds a delay difference reference value, the data frame is transmitted from MAC protocol layer to the protocol layer above the MAC protocol layer without subjecting data frame to the reordering process. 118-. (canceled)19. A method of operating a Radio Network Controller (RNC) of a communication network during a soft handover process of a mobile terminal between a first base station (BS) and at least one second BS that are connected to the RNC , the method comprising:receiving, at a Medium Access Control (MAC) protocol layer of the RNC, a first data frame stream from the first BS via a first data path and a second data frame stream from the second BS via a second data path;determining a relative delay between the data frames of the first data frame stream and the second data frame stream regarding their arrival at the RNC;merging, at the MAC protocol layer, data frames of the first and the second data frame stream into a third data frame stream which is transmitted to a protocol layer above the MAC protocol layer;wherein the merging selectively comprises a ...

Method and devices for controlling usage of multi-path TCP

A method performed by a network element in a communication network comprises inspecting traffic between a radio device and the communication network. The method also comprises, based on said inspecting, determining that the traffic is part of a TCP subflow of an MPTCP connection. The method also comprises, based on said inspecting, calculating a ratio of how much data is transmitted in the subflow in relation to the total amount of data transmitted in the MPTCP connection over a predetermined time period. The method also comprises observing that the calculated ratio is below a reference ratio. The method also comprises, based on said observing, performing an action for preventing congestion in the communication network.

Management of Bitrate for UE Bearers

In one aspect, one or more network nodes configured to manage bitrates for dedicated radio bearers (DRBs) allocate (502) respective shares of a pre-determined aggregated maximum bit rate (AMBR) to a plurality of DRBs or to a plurality of sets of DRBs or to a combination of DRBs and sets of DRBs. The one or more network nodes also enforce (504) maximum bit rates on the DRBs and/or sets of DRBs, according to the allocated shares.

Congestion control in a communication network

A method for congestion control in a network node ( 20 ) of a communication network utilizing a distributed queue system for transmission of data units is disclosed. Said network node ( 20 ) has a priority queue (PQ) ( 40 ) for protocol data units (PDUs) ( 50, 50 a - n ) in accordance with a persistent retransmission protocol. The method comprises detecting ( 110 ) a condition indicative of a congestion and, in response thereto, manipulating ( 120 ) the content of a PDU ( 50, 50 a - n ) in the PQ ( 40 ). A related network node ( 20 ), computer program product, and computer readable medium are also disclosed.

Method and apparatus relating to congestion control

A method and apparatus for enabling service aware congestion control of PS (Packet Switched) data to be performed in a communication network. In the communication network PS data is communicated between a core network of the communication network and one or more User Equipments, UE, via the communication network node. Each UE is associated to the core network by one or more PS connections, and each of the PS connections is applied by the UE for a respective PS data service. When performing the service aware congestion control, information related to a respective PS data service is obtained, and priority information is provided to a resource manager arranged in the communication network. The priority information is based on the information related to the respective PS data service for a plurality of the PS connections. The resource manager is then enabled to perform congestion control of the PS connections based on the priority information. By determining for which PS data services the PS connections are currently applied, and prioritize the PS connections accordingly, the communication network node may reallocate RAN communication resources to higher prioritized PS data services from less prioritized PS data services. Thereby, a more flexible and effective use of available RAN communication resources may be achieved.

Methods and apparatuses for recovering data packet flow control against radio base station buffer run away

Recovery control is provided for recovering data packet flow control between a network node and a radio base station over a radio network interface. The base station communicates with at least one user equipment, UE, over a radio interface and measures information relating to a data transmission rate over the radio interface and an amount of a downlink packet queue in the base station associated with the UE communication. In one embodiment, the base station sends at least some of the measurement information to the network node. A process controller in the network node processes the measurement information to determine a desired amount to be stored in the downlink packet queue. The process controller determines a commanded bit rate to transmit data from the network node to the downlink packet queue based on the determined desired amount and transmits data to the radio base station in accordance with the commanded bit rate.

NR User Plane Signaling Controlled Triggering of PDCP Duplication

In one aspect, one or more network nodes configured control the use of data duplication (DD) for a UE simultaneously served by two or more distributed transmission units (DUs) receive from one or more of the DUs, feedback information. The one or more network nodes determine, based on the feedback information, whether to activate DD for transmissions to the UE. 1. A method , in one or more network nodes of a wireless communication system , the method comprising:receiving radio link quality information from at least one of two or more distributed transmission units (DUs) simultaneously serving a user equipment (UE); anddetermining, based on the radio link quality information, whether to activate data duplication (DD) for transmissions to the UE.2. The method of claim 1 , wherein the radio link quality information comprises and the determining is based on any one or more of:a Signal to Noise Ratio (SNR) for a link between the UE and the respective DU;a Channel Quality Indicator (CQI) for a link between the UE and the respective DU;a Reference Signal Received Power (RSRP) for a link between the UE and the respective DU;a Reference Signal Received Quality (RSRQ) for a link between the UE and the respective DU; andan average Receive Signal Strength Indicator (RSSI) for a link between the UE and the respective DU.3. The method of claim 1 , wherein the radio link quality information is reported on a per-channel basis.4. The method of claim 1 , wherein the radio link quality information comprises load and/or congestion information for the respective DU claim 1 , and the determining is based on the load and/or congestion information.5. The method of claim 3 , wherein said determining is based on an evaluation of load and/or congestion information for all of the two or more DUs.6. The method of claim 1 , wherein the radio link quality information comprises hybrid automatic-repeat-request (HARQ) information and/or retransmission information for the respective DU claim 1 , and ...

Methods and apparatuses for operating a radio network controller during a soft handover process

A technique for operating an RNC of a communication network during a soft handover process of a mobile terminal between a first BS and at least one second BS that are connected to the RNC is provided. A method implementation of the technique comprises receiving, at a MAC protocol layer of the RNC, a first data frame stream from the first BS via a first data path and a second data frame stream from the second BS via a second data path. A relative delay between the data frames of the first and the second data frame stream regarding their arrival at the RNC is determined. At then the MAC protocol layer, data frames of the first and the second data frame stream are then merged into a third data frame stream which is transmitted to a protocol layer above the MAC protocol layer. The merging of the data frames comprises a reordering process of the data frames and wherein, if the relative delay for a data frame exceeds a delay difference reference value, the data frame is transmitted from MAC protocol layer to the protocol layer above the MAC protocol layer without subjecting data frame to the reordering process.

Technique for operating a radio network controller during a soft handover process

A technique for operating an RNC of a communication network during a soft handover process of a mobile terminal between a first BS and at least one second BS that are connected to the RNC is provided. A method implementation of the technique comprises receiving, at a MAC protocol layer of the RNC, a first data frame stream from the first BS via a first data path and a second data frame stream from the second BS via a second data path. A relative delay between the data frames of the first and the second data frame stream regarding their arrival at the RNC is determined. The relative delay takes into account different systematic propagation durations from the first BS and the second BS to the RNC. At then the MAC protocol layer, data frames of the first and the second data frame stream are then merged into a third data frame stream which is transmitted to a protocol layer above the MAC protocol layer. The merging of the data frames is carried out in dependence on the relative delay.

NR user plane signaling controlled triggering of PDCP duplication

In one aspect, one or more network nodes configured control the use of data duplication (DD) for a UE simultaneously served by two or more distributed transmission units (DUs) receive from one or more of the DUs, feedback information. The one or more network nodes determine, based on the feedback information, whether to activate DD for transmissions to the UE.

Error rate management

The invention deals with the adjustment of the nominal target error rate for transmission of data from a priority queue to a new predetermined target error rate depending on the state of the priority queue. Usually, the adjustment to the new predetermined target error rate will be to a predefined lower target error rate based on states of the priority queue, such as amount of data in the priority queue, time passed since the latest transmission of data from the priority queue, whether the amount of data in the priority queue will fit into one transport block, whether the data unit to be transmitted for the priority queue is the first or last data unit in the priority queue and may also be based on the type of data stored in the priority queue. There may be more than one such priority queue.

ERROR RATE MANAGEMENT

The invention deals with the adjustment of the nominal target error rate for transmission of data from a priority queue to a new predetermined target error rate depending on the state of the priority queue. Usually, the adjustment to the new predetermined target error rate will be to a predefined lower target error rate based on states of the priority queue, such as amount of data in the priority queue, time passed since the latest transmission of data from the priority queue, whether the amount of data in the priority queue will fit into one transport block, whether the data unit to be transmitted for the priority queue is the first or last data unit in the priority queue and may also be based on the type of data stored in the priority queue. There may be more than one such priority queue.

Out of sequence delivery of an SDU in a radio device

The present disclosure relates receiving a plurality of Protocol Data Units (PDU) of a PDU sequence over a radio interface; detecting that a PDU of the sequence of the received PDUs is missing, wherein for each of the received PDUs, identifying which Service Data Unit(s) (SDU) it relates to; based on said identifying, determining that a complete SDU is obtainable from one or several PDUs of the received PDUs, which one or several PDUs are later in the sequence of the received PDUs than the missing PDU; obtaining the complete SDU from said one or several PDUs; performing a packet inspection of the obtained complete SDU to determine the type of data it carries; and based on the performed packet inspection, determining that the complete SDU fulfils a predetermined criterion; and delivering the complete SDU before receiving a retransmission of the PDU which is missing.

Predictive EUL scheduling based on service awareness

The present invention relates to a method and device for scheduling transmission of data of terminals in a cell. To this end, information is acquired indicating type of communication service for which a first terminal is to be scheduled. Then, the first terminal and at least a second terminal in the cell is scheduled for transmission of data on the basis of the acquired information indicating the type of communication service for which the first terminal is to be scheduled, the at least second terminal being scheduled for data transmission in time periods between data transmissions of the first terminal.

Method and Arrangement for Flow Control in a Split Path Communication System

A method for transmission control in a multi-connectivity communication system comprises obtaining (S1) of an indication of decreased data rate through a first transmitting node of a multi-connectivity communication system. At least a subset of packets, originally scheduled for, and buffered in, the first transmitting node is rescheduled (S2) to at least one second transmitting node, different from the first transmitting node, of the multi-connectivity communication system, in response to the obtaining of the indication. A network node for transmission control is also disclosed.

Management of Uplink Bitrates

In one aspect, one or more network nodes are configured to manage bitrates for dedicated radio bearers (DRBs) for a UE served by two or more distributed transmission units, where the DRBs include at least one DRB terminating at a first control unit and at least one DRB terminating at a second control unit. The network nodes determine at least a first UL AMBR value for the UE for the first control unit and at least a second UL AMBR value for the UE for the second control unit. The network nodes then signal the first UL AMBR to the first control unit and the second UL AMBR to the second control unit, for enforcement by the first and second control units.

Congestion Control in a Communication Network

A method for congestion control in a network node () of a communication network utilizing a distributed queue system for transmission of data units is disclosed. Said network node () has a priority queue (PQ) () for protocol data units as (PDUs) (-) in accordance with a persistent retransmission protocol. The method comprises detecting () a condition indicative of a congestion and, in response thereto, manipulating () the content of a PDU (-) in the PQ (). A related network node (), computer program product, and computer readable medium are also disclosed. 122-. (canceled)23. A method for congestion control in a network node of a communication network utilizing a distributed queue system for transmission of data units , wherein said network node has a priority queue (PQ) for protocol data units (PDUs) in accordance with a retransmission protocol , the method comprising:detecting a condition indicative of a congestion; and,in response thereto, manipulating a PDU in the PQ, wherein the retransmission protocol is a persistent retransmission protocol and wherein said manipulating the PDU comprises manipulating the content of the PDU, said manipulating the content of the PDU comprising altering one or more bits of a service data unit (SDU) payload of the PDU while leaving a header of the persistent retransmission protocol included in the PDU intact.24. The method of claim 23 , wherein the PDU subject to manipulation is a PDU in the head of the PQ.25. The method of claim 23 , wherein the PDU subject to manipulation is a PDU in the PQ to be transmitted in the same transmission time interval (TTI) as the PDU in the head of the PQ.26. The method of claim 23 , wherein altering one or more bits of the SDU payload of the PDU comprises altering the last bit of the PDU.27. The method of claim 26 , wherein altering one or more bits of the SDU payload of the PDU comprises altering only the last bit of the PDU.28. The method of claim 23 , wherein the condition indicative of ...

Methods and Apparatus for Adapting Network Characteristics in Telecommunications Systems

Methods in a network node, such as a radio base station (RBS) node or a radio network control (RNC) node, for adapting network characteristics in a telecommunications system are provided. A plurality of entities indicative of the performance of the network are measured simultaneously, by means of a single table, and one entity is selected as main entity. The measurements are stored within main entity ranges and a correlation of the measurements is performed to determine a relationship among the entities with main entity range(s). The result(s) of the correlation is used to adapt network characteristics for optimizing the network. Related network nodes are also discussed.

5G congestion control

The overlay of two flow control techniques independently controls the data rate and transmission window size to control congestion in a split radio access architecture comprising a packet processing node (100) that provides user data to one or more baseband processing nodes (200). In particular, the packet processing node (100) determines a data rate for providing the user data to a baseband processing node (200) responsive to air interface feedback received from the baseband processing node (200), and determines a transmission window size for providing user data to the baseband processing node (200) responsive to transport network congestion feedback received from the baseband processing node (200). In so doing, the solution presented herein achieves a high data throughput while also being Internet/TCP compatible.

Network Node and Method in a Wireless Communications Network

A method performed by a network node for transmission of a Packet Data Convergence Protocol, PDCP, Protocol Data Unit, PDU, to a wireless communications device is provided. The network node and the wireless communications device operate in a wireless communications network. The network node arranges () a number of PDCP PDUs in a numerical order based on their respective PDCP Sequence Number, SN. The number of PDCP PDUs is taken from a first set of PDCP PDUs comprising one or more first time transmitted PDCP PDUs and from a second set of PDCP PDUs comprising one or more retransmitted PDCP PDUs. The one or more first time transmitted PDCP PDUs and the one or more retransmitted PDCP PDUs are received from a controlling node. The network node transmits () the number of the PDCP PDUs in the numerical order to the wireless communications device 120.-. (canceled)21. A method performed by a network node for transmission of a Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) to a wireless communications device , wherein the network node and the wireless communications device operate in a wireless communications network , the method comprising:arranging a number of PDCP PDUs in a numerical order based on their respective PDCP Sequence Number (SN), wherein the number of PDCP PDUs are taken from a first set of PDCP PDUs comprising one or more first time transmitted PDCP PDUs and from a second set of PDCP PDUs comprising one or more retransmitted PDCP PDUs, and wherein the one or more first time transmitted PDCP PDUs and the one or more retransmitted PDCP PDUs are received from a controlling node; andtransmitting the number of the PDCP PDUs in the numerical order to the wireless communications device.22. The method according to claim 21 , wherein the controlling node is represented by a Central Unit (CU) claim 21 , wherein the CU is comprised in the network node or is connected to the network node and operating in the wireless communications network.23. The method ...

OUT OF SEQUENCE DELIVERY OF AN SDU IN A RADIO DEVICE

The present disclosure relates receiving a plurality of Protocol Data Units (PDU) of a PDU sequence over a radio interface; detecting that a PDU of the sequence of the received PDUs is missing, wherein for each of the received PDUs, identifying which Service Data Unit(s) (SDU) it relates to; based on said identifying, determining that a complete SDU is obtainable from one or several PDUs of the received PDUs, which one or several PDUs are later in the sequence of the received PDUs than the missing PDU; obtaining the complete SDU from said one or several PDUs; performing a packet inspection of the obtained complete SDU to determine the type of data it carries; and based on the performed packet inspection, determining that the complete SDU fulfils a predetermined criterion; and delivering the complete SDU before receiving a retransmission of the PDU which is missing. 1. A method performed by a radio device , the method comprising:receiving a plurality of Protocol Data Units, PDUs, of a PDU sequence over a radio interface;detecting that a PDU of the sequence of the received PDUs is missing;for each of the received PDUs, identifying which Service Data Unit(s), SDU, it relates to;based on said identifying, determining that a complete SDU is obtainable from one or several PDUs of the received PDUs, which one or several PDUs are later in the sequence of the received PDUs than the missing PDU;obtaining the complete SDU from said one or several PDUs;performing a packet inspection of the obtained complete SDU to determine the type of data it carries;based on the performed packet inspection, determining that the complete SDU fulfils a predetermined criterion; anddelivering the complete SDU which fulfils the predetermined criterion to a higher layer in the radio device, before receiving a retransmission of the PDU which is missing.2. The method of claim 1 , wherein the predefined criterion is that the complete SDU contains data which is insensitive to out-of-sequence delivery.3 ...

5G Congestion Control

A split radio access architecture comprises a packet processing node and one or more baseband processing nodes. The packet processing node receives, from a baseband processing node, first feedback corresponding to air interface congestion between the baseband processing node and a wireless device receiving packets from the baseband processing node. The packet processing node also receives, from the baseband processing node, second feedback corresponding to transport network congestion of a transport interface between the packet processing node and the baseband processing node. The packet processing node transmits user data to the baseband processing node based on the received first and second feedback. 1. A packet processing node in a split radio access architecture , the split radio access architecture comprising the packet processing node and one or more baseband processing nodes , the packet processing node comprising: receive, from a baseband processing node, first feedback corresponding to air interface congestion between the baseband processing node and a wireless device receiving packets from the baseband processing node; and', 'receive, from the baseband processing node, second feedback corresponding to transport network congestion of a transport interface between the packet processing node and the baseband processing node; and, 'a receiver configured toa transmitter configured to transmit user data to the baseband processing node based on the first and second feedback.2. The packet processing node of claim 1 , further comprising processing circuitry configured to determine a data rate for providing the user data to the baseband processing node responsive to the first feedback claim 1 , wherein to transmit the user data based on the first feedback the transmitter is configured to transmit the user data according to the determined data rate.3. The packet processing node of claim 2 , wherein:the first feedback comprises air interface congestion feedback ...

Method and apparatus for determining latency and throughput of a data communication

The technology in this application determines the throughput over a data communication substantially as experienced by a user receiving the data. The determined throughput is substantially independent of the total amount of data transferred over the connection. This “active” throughput measure is divided into two parts to provide two performance measures: transfer throughput and latency. Latency corresponds to a time period needed to accomplish one or more functions associated with the data connection, like setting up and taking down the connection, during which payload type data to be transferred to an end user is not transferred. By identifying and removing the initial latency from the throughput determination for the data connection, the determined transfer throughput provides a more accurate measure of the throughput actually experienced by the end user.

Management of bitrate for UE bearers

In one aspect, one or more network nodes configured to manage bitrates for dedicated radio bearers (DRBs) allocate (502) respective shares of a pre-determined aggregated maximum bit rate (AMBR) to a plurality of DRBs or to a plurality of sets of DRBs or to a combination of DRBs and sets of DRBs. The one or more network nodes also enforce (504) maximum bit rates on the DRBs and/or sets of DRBs, according to the allocated shares.

5G NR Desired Buffer Size Adjustment

According to some embodiments, a method performed by a network node for flow control between a node hosting a packet data convergence protocol (PDCP) entity and a corresponding node comprises: receiving a flow control parameter at the node hosting the PDCP entity from the corresponding node; determining an accuracy of the received flow control parameter; adjusting the value of the received flow control parameter based on the determined accuracy; and transmitting data from the node hosting the PDCP entity to the corresponding node using the adjusted flow control parameter. 1. A method performed by a network node for flow control between a node hosting a packet data convergence protocol (PDCP) entity and a corresponding node , the method comprising:receiving a flow control parameter at the node hosting the PDCP entity from the corresponding node;determining an accuracy of the received flow control parameter;adjusting the value of the received flow control parameter based on the determined accuracy; andtransmitting data from the node hosting the PDCP entity to the corresponding node using the adjusted flow control parameter.2. The method of claim 1 , wherein the flow control parameter comprises at least one of a desired buffer size (DBS) claim 1 , a desired data rate (DDR) claim 1 , a highest transmitted PDCP sequence number claim 1 , and highest successfully delivered PDCP sequence number.3. The method of claim 1 , wherein determining the accuracy of the received flow control parameter comprises estimating a buffer size of the corresponding node and comparing the estimated buffer size to the received flow control parameter.4. The method of claim 3 , wherein estimating the buffer size of the corresponding node comprising determining a difference between an amount of data transmitted to the corresponding node for transmission to a wireless device and the amount of data indicated by the corresponding node as actually transmitted to the wireless device.5. The method of ...

METHOD FOR MANAGING A QUEUE BASED ON A CHANGE RATE PARAMETER

It is presented a queue manager arranged to manage a queue associated with a single radio access bearer of a mobile communication system. The queue manager comprises: a queue detector arranged to provide a change rate parameter indicating a rate of change of a size of the queue; a discard determiner arranged to determine a first discard condition based on the change rate parameter; and a packet discarder arranged to discard a packet in the queue when the first discard condition is satisfied. Corresponding method, radio base station, radio network controller and user equipment are also presented. 1. A queue manager arranged to manage a queue associated with a single radio access bearer of a mobile communication system , the queue manager comprising:a queue detector arranged to provide a change rate parameter indicating a rate of change of a size of the queue;a discard determiner arranged to determine a first discard condition based on the change rate parameter; anda packet discarder arranged to discard a packet in the queue when the first discard condition is satisfied.2. The queue manager according to claim 1 , wherein the discard determiner is further arranged to determine a second discard condition claim 1 , wherein the second discard condition is that an age of an oldest packet in the queue is greater than an age threshold and that the size of the queue is greater than a size threshold; and the packet discarder is arranged to discard a packet in the queue when the first discard condition and the second discard condition are both satisfied.3. The queue manager according to claim 1 , wherein the change rate parameter comprises a quotient between an output data rate of the queue and an input data rate of the queue.5. The queue manager according to claim 3 , wherein the discard determiner is arranged to determine the first discard condition using a calculation of a prohibit time based on the change rate parameter claim 3 , such that the first discard condition fails ...

QoS flow management over E1

A method is provided by a central-unit-control plane (CU-CP) of a network node for exchanging information with a central-unit user plane (CU-UP) of the network node to manage Quality of Service (QoS) flows for the optimization of radio resources. The method includes transmitting, to the CU-UP, a request for flow information for at least one QoS flow and receiving, from the CU-UP of the network node, the flow information for the at least one QoS flow. Based on the flow information for the at least one QoS flow, at least one action is taken.

DYNAMIC CHANGE OF ACTIVE QUEUE MANAGEMENT (AQM) LOCATION

Methods for dynamically triggering a Flow Control (FC) configuration change. The methods, which can be performed by a wireless device and/or a base station, involve determining whether there is a need to trigger the FC configuration change and triggering the FC configuration change in response to determining that the FC configuration change is needed. The FC configuration change includes switching between an FC activated state, in which FC and aggregation are enabled and Active Queue Management (AQM) is configured for a Packet Data Convergence Protocol (PDCP) Service Data Unit (SDU) buffer, and an FC deactivated state, in which FC and aggregation are disabled and AQM is configured for a Radio Link Control (RLC) SDU buffer. By dynamically triggering the FC configuration change, it is possible to enable FC and aggregation based on traffic volume on a Radio Bearer (RB) such that the benefit of aggregation can be realized when needed.

5G Congestion Control

The overlay of two flow control techniques independently controls the data rate and transmission window size to control congestion in a split radio access architecture comprising a packet processing node (100) that provides user data to one or more baseband processing nodes (200). In particular, the packet processing node (100) determines a data rate for providing the user data to a baseband processing node (200) responsive to air interface feedback received from the baseband processing node (200), and determines a transmission window size for providing user data to the baseband processing node (200) responsive to transport network congestion feedback received from the baseband processing node (200). In so doing, the solution presented herein achieves a high data throughput while also being Internet/TCP compatible.

Flow control in wireless communication systems

The proposed technology generally relates to a method for controlling multi-point data transmission between a primary node (100) and a User Equipment, UE, via secondary nodes (101, 102). The method comprises the steps of obtaining (S1) Round-Trip Time, RTT, values (TRTT,backhaul,i) between a primary node (100) and two or more secondary nodes (101, 102). The method further comprises determining (S2) a time value relationship (αi) between uplink and downlink for each of the obtained RTT values; determining (S3) a first queue dwell time (Tref,queue,1) in a first secondary node (101) of the two or more secondary nodes (101, 102); and determining (S4) a second queue dwell time (Tref,queue,2) in a second secondary node (102) of the two or more secondary nodes (101, 102), the second queue dwell time (Tref,queue,2) being determined at least partly based on the RTT values (TRTT,backhaul,i), the time value relationship (αi) and the determined first queue dwell time (Tref,queue,1). The method further ...

Methods and apparatus for adapting network characteristics in telecommunications systems

Methods in a network node, such as a radio base station (RBS) node or a radio network control (RNC) node, for adapting network characteristics in a telecommunications system are provided. A plurality of entities indicative of the performance of the network are measured simultaneously, by means of a single table, and one entity is selected as main entity. The measurements are stored within main entity ranges and a correlation of the measurements is performed to determine a relationship among the entities with main entity range(s). The result(s) of the correlation is used to adapt network characteristics for optimizing the network. Related network nodes are also discussed.

PREDICTIVE EUL SCHEDULING BASED ON SERVICE AWARENESS

The present invention relates to a method and device for scheduling transmission of data of terminals in a cell. To this end, information is acquired indicating type of communication service for which a first terminal is to be scheduled. Then, the first terminal and at least a second terminal in the cell is scheduled for transmission of data on the basis of the acquired information indicating the type of communication service for which the first terminal is to be scheduled, the at least second terminal being scheduled for data transmission in time periods between data transmissions of the first terminal. 1. A method of scheduling transmission of data of terminals in a cell , the method comprising the steps of:acquiring information indicating type of communication service for which a first terminal is to be scheduled; andscheduling the first terminal and at least a second terminal in the cell for transmission of data on the basis of the acquired information indicating the type communication service for which the first terminal is to be scheduled, the at least second terminal being scheduled for data transmission in time periods between data transmissions of the first terminal.2. The method of claim 1 , wherein the acquired information relating to the communication service specifies timing particulars of the communication service for which the first terminal is to be scheduled.3. The method of claim 1 , further comprising the steps of:determining, from the acquired information, a period of communication inactivity of the first terminal in the scheduled communication service; andscheduling the at least a second terminal for data transmission during the period of communication inactivity determined for the first terminal.4. The method of claim 3 , further comprising the steps of:determining, from the acquired information, when the period of communication inactivity is to occur; andscheduling the at least a second terminal for data transmission during the period of ...

METHOD AND DEVICES FOR CONTROLLING USAGE OF MULTI-PATH TCP

A method performed by a network element in a communication network comprises inspecting traffic between a radio device and the communication network. The method also comprises, based on said inspecting, determining that the traffic is part of a TCP subflow of an MPTCP connection. The method also comprises, based on said inspecting, calculating a ratio of how much data is transmitted in the subflow in relation to the total amount of data transmitted in the MPTCP connection over a predetermined time period. The method also comprises observing that the calculated ratio is below a reference ratio. The method also comprises, based on said observing, performing an action for preventing congestion in the communication network. 1. A method performed by a network element in a communication network , the method comprising:inspecting traffic between a radio device and the communication network;based on said inspecting, determining that the traffic is part of a Transmission Control Protocol (TCP) subflow of a multi-path TCP (MPTCP) connection;based on said inspecting, calculating a ratio of how much data is transmitted in the subflow in relation to the total amount of data transmitted in the MPTCP connection over a predetermined time period;observing that the calculated ratio is below a reference ratio; andbased on said observing, performing an action for preventing congestion in the communication network.2. The method of claim 1 , wherein the performing an action comprises preempting a radio access bearer claim 1 , (RAB) of the radio device.3. The method of claim 1 , wherein the performing an action comprises rejecting resources to realise a radio access bearer (RAB) of the radio device for setting up the RAB with the communication network.4. The method of claim 1 , wherein the performing an action comprises assigning a priority level to a radio access bearer (RAB) of the radio device.5. The method of claim 1 , wherein the inspecting comprises inspecting headers of data ...

METHOD AND APPARATUSES FOR DETERMINING PRIORITY OF A WIRELESS TERMINAL

A method for determining a priority of a mobile subscriber in a cellular network. The method is performed in a radio network node and comprises the steps of: obtaining a temporary mobile subscriber identity, TMSI, associated with a priority affecting event; storing the TMSI associated with the event, as at least part of an indication of priority; receiving a connection request from a wireless terminal of the mobile subscriber, the connection request comprising a TMSI; and determining a priority of the wireless terminal based on whether the TMSI of the connection request matches a stored TMSI or not. 1. A method for determining a priority of a mobile subscriber in a cellular network , the method being performed in a radio network node and comprising the steps of:obtaining a temporary mobile subscriber identity, TMSI, associated with a priority affecting event;storing the TMSI associated with the event, as at least part of an indication of priority;receiving a connection request from a wireless terminal of the mobile subscriber, the connection request comprising a TMSI; anddetermining a priority of the wireless terminal based on whether the TMSI of the connection request matches a stored TMSI or not.2. The method according to claim 1 , wherein the step of storing comprises storing a time stamp in association with the TMSI associated with the event; and wherein the method further comprises the step of:removing stored TMSI records older than a threshold age.3. The method according to claim 1 , wherein the step of receiving a connection request comprises receiving a radio resource control connection request.4. The method according to claim 1 , wherein:in the step of obtaining a TMSI, the priority affecting event is receiving a downlink paging message comprising a TMSI for the mobile subscriber, the downlink paging message comprising a page request of a circuit switched core network;the step of storing the TMSI comprises indicating when the downlink paging message ...

FIRST UNIT, SECOND UNIT AND METHODS IN A WIRELESS COMMUNICATIONS NETWORK

A method performed by a first unit for handling a connection between the first unit and multiple second units in a wireless communications network is provided. The first unit obtains from each of the multiple second units a respective indication of which one or more version of NR User plane protocol (NR-U) it supports. The first unit decides which version of NR-U that is possible to use for the connection based on the indications received from the multiple second units. 1. A method performed by a first unit for handling a connection between the first unit and multiple second units in a wireless communications network , the method comprising:obtaining from each of the multiple second units a respective indication of which one or more version of NR User plane protocol, NR-U, it supports; anddeciding which version of NR-U that is possible to use for the connection based on the indications received from the multiple second units.2. The method according to claim 1 , wherein the first unit is represented by a Central Unit claim 1 , CU claim 1 , and the multiple second units are represented by one or more Distributed Units claim 1 , DUs.3. The method according to claim 1 , wherein the first unit is represented by a Centralized Unit Control plane Part claim 1 , CU-CP claim 1 , and the multiple second units are represented by a Central Unit User plane Part claim 1 , CU-UP claim 1 , and at least one Distributed Unit claim 1 , DU.4. The method according to claim 1 , wherein the first unit is represented by a master node claim 1 , and the multiple second units are represented by multiple secondary nodes.5. The method according to claim 1 , further comprising:sending to each respective multiple second units, an indication of the decided version of NR-U that is possible to use for the connection.6. (canceled)7. (canceled)8. A method performed by a second unit for handling a between the first unit and multiple second units in a wireless communications network claim 1 , the method ...

RADIO NETWORK CONTROLLER AND A METHOD THEREIN FOR MANAGING A RANDOM ACCESS CHANNEL

A Radio Network Controller, RNC, and a method performed by the RNC for managing the utilisation of a RACH of a WCDMA communication network wherein the RNC is associated with an RBS, wherein the RACH is an uplink channel between UEs and the RBS are provided. The method comprises determining a current resource utilisation level of the RACH; setting, based on the determined resource utilisation, a value of at least one Radio Link Control, RLC, parameter that controls the disposition of a UE to transmit data on the RACH; and employing the at least one RLC parameter to at least one UE being in a Cell Forward Access Channel, CELL_FACH, state or entering into the CELL_FACH state. 1. A method performed by a Radio Network Controller , RNC , for managing the utilisation of a Random Access Channel , RACH , of a Wideband Code Division Multiple Access , WCDMA , communication network , the RNC being associated with a Radio Base Station , RBS , wherein the RACH is an uplink channel between User Equipments , UEs , and the RBS , the method comprising:determining a current resource utilisation level of the RACH;setting, based on the determined resource utilisation, a value of at least one Radio Link Control, RLC, parameter that controls the disposition of a UE to transmit data on the RACH; andemploying the at least one RLC parameter to at least one UE being in a Cell Forward Access Channel, CELL_FACH, state or entering into the CELL_FACH state.2. The method according to claim 1 , further comprising signalling the at least one RLC parameter to at least one UE being in a Cell Forward Access Channel claim 1 , CELL_FACH claim 1 , state or entering into the CELL_FACH state.3. The method according to claim 1 , wherein the at least one RLC parameter controls the UE disposition to transmit or retransmit a data packet while awaiting acknowledgement on a previously transmitted data packet.4. The method according to claim 1 , wherein the RLC parameters are set per UE currently being connected ...

Methods and apparatuses for recovering data packet flow control against radio base station buffer run away

Recovery control is provided for recovering data packet flow control between a network node (14) and a radio base station (18) over a radio network interface (2). The base station communicates with at least one user equipment, UE, (10) over a radio interface (3) and measures information relating to a data transmission rate over the radio interface and an amount of a downlink packet queue (22) in the base station associated with the UE communication. In one embodiment, the base station sends at least some of the measurement information to the network node. A process controller (52, 40, 84) in the network node processes the measurement information to determine a desired amount to be stored in the downlink packet queue. The process controller determines a commanded bit rate to transmit data from the network node to the downlink packet queue based on the determined desired amount and transmits data to the radio base station in accordance with the commanded bit rate.

Methods and apparatuses for recovering data packet flow control against radio base station buffer run away

Recovery control is provided for recovering data packet flow control between a network node ( 14 ) and a radio base station ( 18 ) over a radio network interface ( 2 ). The base station communicates with at least one user equipment, UE, ( 10 ) over a radio interface ( 3 ) and measures information relating to a data transmission rate over the radio interface and an amount of a downlink packet queue ( 22 ) in the base station associated with the UE communication. In one embodiment, the base station sends at least some of the measurement information to the network node. A process controller ( 52, 40, 84 ) in the network node processes the measurement information to determine a desired amount to be stored in the downlink packet queue. The process controller determines a commanded bit rate to transmit data from the network node to the downlink packet queue based on the determined desired amount and transmits data to the radio base station in accordance with the commanded bit rate.

Qos flow management over e1

A method is provided by a central-unit-control plane (CU-CP) of a network node for exchanging information with a central-unit user plane (CU-UP) of the network node to manage Quality of Service (QoS) flows for the optimization of radio resources. The method includes transmitting, to the CU-UP, a request for flow information for at least one QoS flow and receiving, from the CU-UP of the network node, the flow information for the at least one QoS flow. Based on the flow information for the at least one QoS flow, at least one action is taken.

Method and apparatuses for operating a radio network controller during a soft handover process

A technique for operating an RNC of a communication network during a soft handover process of a mobile terminal between a first BS and at least one second BS that are connected to the RNC is provided. A method implementation of the technique comprises receiving, at a MAC protocol layer of the RNC, a first data frame stream from the first BS via a first data path and a second data frame stream from the second BS via a second data path. A relative delay between the data frames of the first and the second data frame stream regarding their arrival at the RNC is determined. At then the MAC protocol layer, data frames of the first and the second data frame stream are then merged into a third data frame stream which is transmitted to a protocol layer above the MAC protocol layer. The merging of the data frames comprises a reordering process of the data frames and wherein, if the relative delay for a data frame exceeds a delay difference reference value, the data frame is transmitted from MAC protocol layer to the protocol layer above the MAC protocol layer without subjecting data frame to the reordering process.

Flow based packet manipulation congestion control

A method and a device for improved state switching

The invention discloses a method (400) for use in a wireless access network (100) with a number of cells (110), each cell being able to accommodate a number of user terminals (114), UE, the traffic to and from the UEs in a cell 5 being controlled by a node (112) in the system. Data packets can be exchanged between the UEs in a cell and the controlling node of the cell. The UEs can assume different states (210, 220, 230, 240) which have different capabilities such as data transfer speed, and according to the method of the invention, data packets which are sent to or from a UE (114) are analyzed 0 (410) in order to see if the UE should be transferred from one state to another, and in the UE may be instructed to change state as a result of the analysis.

Transmitting device and method performed therein for handling communication

Network node and method in a wireless communications network

Transmission device and method used in it to manage communications

Un método llevado a cabo por un dispositivo de transmisión (120) para gestión de comunicación en una red de comunicaciones inalámbricas, en el que el dispositivo de transmisión (120) comprende por lo menos dos entidades de control del radioenlace, RLC, y está configurado con una portadora dividida para un dispositivo de recepción (100), comprendiendo el método: - identificar (401) que una ultima unidad de datos de protocolo, PDU, transmitida, de una de las por lo menos dos entidades RLC, carece de un indicador de sondeo que solicita un estado de una o varias PDU transmitidas; cuando se identifica que la última PDU transmitida carece del indicador de sondeo, - transmitir (402) al dispositivo de recepción (100), una PDU que comprende un indicador de sondeo, en el que identificar que la última PDU transmitida carece de indicador de sondeo se lleva a cabo en el caso en que la transmisión sobre una o varias de las por lo menos dos entidades RLC se detenga, o se conmute a otra entidad RLC mientras sigue habiendo datos en espera en capas superiores, asociados con una primera entidad RLC. A method carried out by a transmission device (120) for communication management in a wireless communication network, in which the transmission device (120) comprises at least two radio link control entities, RLC, and is configured with a split carrier for a receiving device (100), the method comprising: - identifying (401) that a last protocol data unit, PDU, transmitted, of one of the at least two RLC entities, lacks a flag polling requesting a status of one or more transmitted PDUs; when the last transmitted PDU is identified as lacking the polling flag, - transmitting (402) to the receiving device (100), a PDU comprising a polling flag, wherein identifying that the last transmitted PDU is missing the polling flag it is performed in the case where transmission on one or more of the at least two RLC entities is stopped, or switched to another RLC entity while there is still data waiting ...

Management of bitrate for ue bearers

In one aspect, one or more network nodes configured to manage bitrates for dedicated radio bearers (DRBs) allocate (502) respective shares of a pre-determined aggregated maximum bit rate (AMBR) to a plurality of DRBs or to a plurality of sets of DRBs or to a combination of DRBs and sets of DRBs. The one or more network nodes also enforce (504) maximum bit rates on the DRBs and/or sets of DRBs, according to the allocated shares.

Flow based packet manipulation congestion control

This disclosure relates to a Radio Network Controller, RNC, (102, 200) a base station (106, 300), and to methods therein. By extracting (204, 304) information from one or more flows of Protocol Data Units, PDUs, which information is accessible on a certain protocol layer only, congestion control is enabled and performed on another protocol layer based on said information. The present disclosure avoids that inappropriate PDUs are discarded, which else would inappropriately affect the user performance.

Network node and method in a wireless communications network

Methods and apparatuses for recovering data packet flow control against radio base station buffer run away

Recovery control is provided for recovering data packet flow control between a network node (14) and a radio base station (18) over a radio network interface (2). The base station communicates with at least one user equipment, UE, (10) over a radio interface (3) and measures information relating to a data transmission rate over the radio interface and an amount of a downlink packet queue (22) in the base station associated with the UE communication. In one embodiment, the base station sends at least some of the measurement information to the network node. A process controller (52, 40, 84) in the network node processes the measurement information to determine a desired amount to be stored in the downlink packet queue. The process controller determines a commanded bit rate to transmit data from the network node to the downlink packet queue based on the determined desired amount and transmits data to the radio base station in accordance with the commanded bit rate.

Nr user plane signaling controlled triggering of pdcp duplication

In one aspect, one or more network nodes configured control the use of data duplication (DD) for a UE simultaneously served by two or more distributed transmission units (DUs) receive from one or more of the DUs, feedback information. The one or more network nodes determine, based on the feedback information, whether to activate DD for transmissions to the UE.

Bearer handling for scg deactivation

Systems and/or methods are provided for user plane data handling during an SCG de-activation/re-activation procedure. In particular, upon SCG de-activation, the UE may release the RLC entities associated with the SCG. Upon SCG activation, the UE may establish the RLC entities associated with the SCG and a data split threshold associated with the deactivated SCG of infinity is applied. Related devices, systems and computer program products are disclosed.

Methods and apparatuses for a data packet flow control for recovering an excessive radio base station buffer dwell time

Recovery control is provided for recovering data packet flow control between a network node and a radio base station over a radio network interface. The base station communicates with at least one user equipment, UE, over a radio interface and measures information relating to a data transmission rate over the radio interface and an amount of a downlink packet queue in the base station associated with the UE communication. In one embodiment, the base station sends at least some of the measurement information to the network node. A process controller in the network node processes the measurement information to determine a desired amount to be stored in the downlink packet queue. The process controller determines a commanded bit rate to transmit data from the network node to the downlink packet queue based on the determined desired amount and transmits data to the radio base station in accordance with the commanded bit rate.

5g congestion control

Verfahren und vorrichtung zur bestimmung von latenz und durchsatz einer datenkommunikation

First unit, second unit and methods in a wireless communications network

A method performed by a first unit for handling a connection between the first unit and multiple second units in a wireless communications network is provided. The first unit obtains (601) from each of the multiple second units a respective indication of which one or more version of NR User plane protocol (NR-U) it supports. The first unit decides (602) which version of NR-U that is possible to use for the connection based on the indications received from the multiple second units.

A method and an apparatus for adapting network characteristics in a telecommunications system

5g congestion control

The overlay of two flow control techniques independently controls the data rate and transmission window size to control congestion in a split radio access architecture comprising a packet processing node (100) that provides user data to one or more baseband processing nodes (200). In particular, the packet processing node (100) determines a data rate for providing the user data to a baseband processing node (200) responsive to air interface feedback received from the baseband processing node (200), and determines a transmission window size for providing user data to the baseband processing node (200) responsive to transport network congestion feedback received from the baseband processing node (200). In so doing, the solution presented herein achieves a high data throughput while also being Internet/TCP compatible.

Method and apparatus for determining latency and throughput of a data communication

The technology in this application determines the throughput over a data communication substantially as experienced by a user receiving the data. The determined throughput is substantially independent of the total amount of data transferred over the connection. This 'active' throughput measure is divided into two parts to provide two performance measures: transfer throughput and latency. Latency corresponds to a time period needed to accomplish one or more functions associated with the data connection, like setting up and taking down the connection, during which payload type data to be transferred to an end user is not transferred. By identifying and removing the initial latency from the throughput determination for the data connection, the determined transfer throughput provides a more accurate measure of the throughput actually experienced by the end user.

Method and apparatus for determining latency and throughput of a data communication

The technology in this application determines the throughput over a data communication substantially as experienced by a user receiving the data. The determined throughput is substantially independent of the total amount of data transferred over the connection. This 'active' throughput measure is divided into two parts to provide two performance measures: transfer throughput and latency. Latency corresponds to a time period needed to accomplish one or more functions associated with the data connection, like setting up and taking down the connection, during which payload type data to be transferred to an end user is not transferred. By identifying and removing the initial latency from the throughput determination for the data connection, the determined transfer throughput provides a more accurate measure of the throughput actually experienced by the end user.

Method and apparatus for determining latency and throughput of a data communication

The technology in this application determines the throughput over a data communication substantially as experienced by a user receiving the data. The determined throughput is substantially independent of the total amount of data transferred over the connection. This 'active' throughput measure is divided into two parts to provide two performance measures: transfer throughput and latency. Latency corresponds to a time period needed to accomplish one or more functions associated with the data connection, like setting up and taking down the connection, during which payload type data to be transferred to an end user is not transferred. By identifying and removing the initial latency from the throughput determination for the data connection, the determined transfer throughput provides a more accurate measure of the throughput actually experienced by the end user.

A method and an apparatus for adapting network characteristics in a telecommunications system

Qos flow management over e1

Inter-modulation avoidance for transmission on different frequencies

A method, system and network node are disclosed. A network node for communication with a wireless device that is configured for uplink transmission on a first carrier using a first Radio Access Technology (RAT) and on a second carrier using a second RAT is provided. The network node includes processing circuitry configured to determine whether to schedule the wireless device for uplink and whether to schedule the wireless device for uplink and downlink communications, in a transmission time interval (TTI) according to the first RAT based at least in part on an intermodulation distortion quantity associated with uplink communications according to both the first RAT and the second RAT, and optionally schedule the wireless device according to the determination.

Qos flow management over e1

A method is provided by a central-unit-control plane (CU-CP) of a network node for exchanging information with a central-unit user plane (CU-UP) of the network node to manage Quality of Service (QOS) flows for the optimization of radio resources. The method includes transmitting, to the CU-UP, a request for flow information for at least one QoS flow and receiving, from the CU-UP of the network node, the flow information for the at least one QoS flow. Based on the flow information for the at least one QoS flow, at least one action is taken.

Methods, apparatus and computer-readable media relating to low-latency services in wireless networks

A method performed by a first network node for uplink congestion control in a radio network is provided. The first network node is operable to handle one or more first layers of a protocol stack for an uplink connection between a wireless device and the radio network and is communicatively coupled to a second network node handling one or more second, lower layers of the protocol stack. The method comprises obtaining an indication of a proportion of packets within an uplink user plane flow that are to be marked with a congestion indicator, in which the proportion is based on a delay experienced by packets of the uplink user plane flow sent by the wireless device to the second network node. The method further comprises marking the proportion of packets with the congestion indicator and transmitting packets for the uplink user plane flow towards a core network of the radio network.

Methods, apparatus and computer-readable media relating to low-latency services in wireless networks

A method performed by a first network node for downlink congestion control in a radio network. The first network node handles one or more first layers of a protocol stack for a downlink connection between the radio network and a wireless device, and is communicatively coupled to a second network node handling one or more second layers of the protocol stack for the downlink connection. The one or more second layers are lower than the one or more first layers. The method comprises: obtaining an indication of a proportion of packets within a downlink user plane flow over the downlink connection that are to be marked with a congestion indicator, wherein the proportion is based on a delay experienced by packets of the downlink user plane flow sent by the second network node to the wireless device; marking the proportion of packets with the congestion indicator; and transmitting packets for the downlink user plane flow to the second network node for onward transmission to the wireless device.

Ｐｄｃｐ複製のｎｒユーザプレーンシグナリング制御されたトリガリング

【課題】２つまたはそれ以上の分散型送信ユニット（ＤＵ）によって同時にサーブされるユーザ機器（ＵＥ）のためのデータ複製（ＤＤ）の使用を制御する方法を提供する。【解決手段】２つまたはそれ以上の分散型送信ユニット（ＤＵ）によって同時にサーブされるＵＥのためのデータ複製（ＤＤ）の使用を制御するように設定された１つまたは複数のネットワークノードは、ＤＵのうちの１つまたは複数からフィードバック情報を受信し、フィードバック情報に基づいて、ＵＥへの送信のためにＤＤをアクティブ化すべきかどうかを決定する。【選択図】図２

NR User Plane Signaling Controlled Triggering of PDCP Duplication

In one aspect, one or more network nodes configured control the use of data duplication (DD) for a UE simultaneously served by two or more distributed transmission units (DUs) receive from one or more of the DUs, feedback information. The one or more network nodes determine, based on the feedback information, whether to activate DD for transmissions to the UE.

Method and arrangements for desired buffer size target time

The present disclosure relates to the field of wireless communication, and in particular to a method and arrangement for improving flow control interaction in a low latency distributed radio access network, RAN, including an upper layer RAN node and at least one lower layer RAN node. The method includes determining a Packet Data Convergence Protocol, PDCP, Protocol Data Unit, PDU, buffer dwell time target, BDTT, and providing the BDTT to the upper layer RAN node and/or the lower layer RAN node.

Qos flow management over e1

A method is provided by a central-unit-control plane (CU-CP) of a network node for exchanging information with a central-unit user plane (CU-UP) of the network node to manage Quality of Service (QoS) flows for the optimization of radio resources. The method includes transmitting, to the CU-UP, a request for flow information for at least one QoS flow and receiving, from the CU-UP of the network node, the flow information for the at least one QoS flow. Based on the flow information for the at least one QoS flow, at least one action is taken.

Qos flow management over e1

Qos flow management over e1

A method is provided by a central-unit-control plane (CU-CP) of a network node for exchanging information with a central-unit user plane (CU-UP) of the network node to manage Quality of Service (QoS) flows for the optimization of radio resources. The method includes transmitting, to the CU-UP, a request for flow information for at least one QoS flow and receiving, from the CU-UP of the network node, the flow information for the at least one QoS flow. Based on the flow information for the at least one QoS flow, at least one action is taken.

Technique for operating a radio network controller during a soft handover process

A technique for operating an RNC of a communication network during a soft handover process of a mobile terminal between a first BS and at least one second BS that are connected to the RNC is provided. A method implementation of the technique comprises receiving, at a MAC protocol layer of the RNC, a first data frame stream from the first BS via a first data path and a second data frame stream from the second BS via a second data path. A relative delay between the data frames of the first and the second data frame stream regarding their arrival at the RNC is determined. The relative delay takes into account different systematic propagation durations from the first BS and the second BS to the RNC. At then the MAC protocol layer, data frames of the first and the second data frame stream are then merged into a third data frame stream which is transmitted to a protocol layer above the MAC protocol layer. The merging of the data frames is carried out in dependence on the relative delay.