Apparatus and methods for performing sensing operations in carrier aggregation communications

Charging system for proximity services

A method comprising monitoring if a charging event related to a proximity service performed by an apparatus UE performing the method occurs, collecting the at least one charging event (charging data record) CDR and forwarding the collected at least one charging event to a charging data function CDE. The charging event may be a device to device communication which is not conveyed through a network but may use a resource assigned for a network communication. The charging event may be forwarded to a charging gateway.

A message frame comprising a channel switch announcement identifying one or more communication channels

A method of operating an access point in a wireless network comprises determining to switch from a first communication channel to a second communication channel, generating a message frame comprising a channel switch announcement element 100 having a channel list identifying a plurality of second communication channels 104, 105, 106, and wirelessly transmitting the message frame. The channel switch announcement element 100 may include an element ID field 101, a length field 102 and the channel list. In a preferred arrangement, the message frame may also comprise a validity timer field (134, fig.11) identifying a length of time that the second communication channels are valid and control information (113, fig.9) specifying a priority ordering of the second communication channels. When a client station receives the message frame, it switches to operate on one of the second communication channels.

Method and apparatus for scaling coverage

An access point (AP) for basic service set (BSS) coverage scaling, providing scaled coverage, comprises: determining BSS overlap 405, causing operation in a reduced coverage mode with power reduction 415, generating a beacon comprising an indication of a reduced coverage mode in a capability field and one or more coverage scaling parameters (CSP) in an information element 420, and causing the beacon to be provided to one or more stations (STA) 430. A station receiving the beacon will cause transmission of uplink (UL) communications in accordance with the CSP. An indication of a calculated power transmission reduction is provided in the CSP, wherein the CSP comprise one or more of a relative transmission (TX) power reduction, an indication of whether a current frame is transmitted with a maximum or current power, an indication of whether stations (STAs) are required to scale TX power, or an indication of which tower or sector identification (ID) to which the parameter set applies 425. An ...

Method, apparatus and computer program for facilitating secure D2D discovery information

Device-to-device discovery procedure based on a random access channel preamble

Implementing a cellular oriented mechanism such as Random Access (RA) mechanism to support device-to-device (D2D) discovery procedure and D2D connection setup for a direct D2D communication of cellular devices such as User Equipment (UE), in LTE wireless systems. The network can provide D2D uplink resource(s) to UEs for setting the D2D communication based on a Random Access Channel (RACH) preamble (e.g., mapped according to a predefined procedure from the discovery signal) received by the network from the UE.

Control channel communication on shared bands

The invention comprises controlling the communication of a transceiver on shared data channels using a data channel slot comprising a sensing period and a data period and controlling a transceiver to communicate on common and dedicated control channels on a shared spectrum using control channel slots, each control channel slot comprising a downlink part and an uplink part, wherein the uplink part occurs at the same time as the sensing period of a data channel slot.

Performing measurements of a secondary component carrier to determine usability for transmission

The present invention proposes an apparatus which comprises a communication module configured for communication in a carrier aggregation mode aggregating a primary and at least one secondary carrier component, a measurement module, and a control module, configured to retrieve measurement information pertaining to a measurement to be conducted of at least one secondary carrier associated to the primary carrier in the carrier aggregation mode, and instruct the measurement module to conduct a measurement of the at least one secondary carrier based on the measurement information, determine, based on a measurement result, an extent to which the measured secondary carrier is usable for transmission. Also, a corresponding method and computer program product is proposed. Suitable for use where the secondary component carrier uses unlicensed spectrum or reserved bands such as television whitespace (TVWS) and the measurements of the secondary carrier are for sensing interference, in a listen before ...

Methods, apparatus and computer programs for compiling a beacon and filtering received beacons

METHOD, APPARATUS AND COMPUTER PROGRAM FOR ENABLING LICENCE-EXEMPT SPECTRUM OPERATION

A fixed or Mode II device (24) enables a Mode I device (20,21) for licence-exempt operation by providing to it a list of available licence-exempt radio channels and a parameter indicating an interval at which contact verification signals (CVS) are to be sent. The contact verification signals verify whether the list remains valid. The fixed/Mode II device (24) then repeatedly sends contact verification signals spaced in time from one another according to the interval. The device 24 may also indicate the specific channel or channels on which it will send the CVS transmissions. A receiving device desiring to become or remain enabled can read the CVS interval indication and go into a reduced power/sleep mode for a relatively extended period of time and need not be awake for every CVS transmission.

Method, apparatus and computer program for facilitating secureD2D discovery information

A method is provided for facilitating secure device-to-device discovery. The method may include receiving, at a terminal (104), a device-to-device (D2D) discovery signal. The D2D discovery signal may include D2D discovery information and an indication of a security level applied to the D2D discovery information included in the D2D discovery signal. The method may include determining, based at least in part on the indication, the security level applied to the D2D discovery information. A corresponding apparatus and computer program product are also provided. A 2 bit identifier in the discovery signal may be used to identify the security level. Alternative embodiments deal with the distribution of security keys to authenticated devices that are permitted to receive the key.

Mapping downlink common control information to an uplink resource

 Downlink common control information (202) communicated in a first network (such as a macro network or a small cell) between a first/macro access node and a user equipment UE is mapped to an uplink resource (206). The first/macro access node and the UE then tune to the mapped uplink resource (206) to send or receive dedicated control information about the UE concerning a second network (an underlay network such as a femto CSG or device-to-device, D2D, network). In one embodiment the downlink common control information may be within a downlink assignment indicated by Paging Radio Network Temporary Identifier, Random Access-RNTI, or System Information-RNTI; and the mapping uses a control channel element which carries the P-RNTI or the RA-RNTI or the SI-RNTI. In another, the mapped uplink resource is a format 1a or format 1b PUCCH and the common control information requires neither an acknowledgement nor a negative acknowledgement.

Apparatus, method and computer program for enabling network communication

METHOD, APPARATUS AND COMPUTER PROGRAM FOR ENABLING LICENCE-EXEMPT SPECTRUM OPERATION