Method for implementing coverage in long distance through SCDMA wireless communication system

Terminal ad hoc network synchronization method

The invention provides a terminal ad hoc network synchronization method, in which the synchronization is performed by use of a GPS or Beidou system, or by way of synchronizing time marks transmitted by relevant areas, or by way of synchronizing signals transmitted by terminals, or by any combination of the above.

Framing synchronous processing method of inserting channel

When a terminal launches an access request to the base station, the signaling information in the access channel is asynchronous transferred i.e. asynchronous access is SCDMA communication system. Themethod uses synchronous access instead asynchronous access, that is to say the original access frame is sent in two parts in sequences: the access information and the signaling information. The terminal sends the access information first. Then, with the holding control command from the base station being received, the terminal sends the access signaling information at next frame in order to complete the synchronous access.

Method for supporting simultaneous working of cluster and video in multi-carrier system

The invention puts forward a method for supporting simultaneous working of a cluster and a video in a multi-carrier system. The method comprises: a base station distributes cloned cluster resources at a carrier group of a terminal video service and an identical content is sent to the cloned cluster resources and the shared resources of the cluster; and a cluster service is carried out on the cloned cluster resources by the terminal. According to the invention, an objective of simultaneous realization of a video service and a cluster service can be achieved, thereby preventing video service interruption due to cluster answering.

Method and system for adjusting ascending random access time slot in TDD radio communication system

This invention relates to a method and a system for adjusting up-line random access time slot in a TDD radio communication system, in which, the method includes: computing and reporting power values corresponding to first n symbols of a symbol set and computing the statistic volumes of the power values of first m symbols and the latter n-m symbols when the power values corresponding to the first m symbols in the n symbols are greater than a first threshold value, and adjusting the up-line random access time slot to time scale of TG+Ts xm+tau when the difference of the statistic volume of the power values corresponding to the first m symbols and those of the n-m symbols is greater than a second threshold value. The system includes: a power computation and statistic unit, a power comparing unit, a power statistic unit and a time slot adjusting unit.

A method for TDD system terminal to switch between different frequent points

The invention provides a switching method for a TDD system terminal among different frequency points. The method comprises monitoring host base station and repeater information by a terminal during talking time, selecting neighboring frequency point with good signal quality and originating switching access when the quality of the current communication link is detected to be reduced and SNR and PWR reach switching threshold; originating switching request by the terminal after the host base station allows the terminal to originate switching access base on its resource situation; determining whether the terminal has already talked in the host base station by the host base station according the user information at the terminal; directly transmitting switching response by the host base stationafter receiving the switching request, and releasing the allocated resource to the terminal before switching; and entering talking state by the terminal after receiving the switching response. The inventive ...

Method and system for adjusting protection time slot

This invention provides a method for adjusting protection time slot including computing power of every symbol in a symbolic set composed of first n symbols of an up channel reported by a base station, when the power of a first symbol in the set of the up service is greater than a first threshold value, it computes statistic volumes of the power values of continuous n symbols beginning from the symbol, and the n symbols include symbols with the first m power greater than the threshold value and n is greater than m, when the difference of the power of said first m symbols and the latter n-m symbols is greater than the second threshold value, the length of the protection time slot is set at T+mt+tau, and T is the smallest one, mt is the time occupied by the first m symbols, tau greater than 0 is the set value. This invention also provides a system for adjusting protection time slot including: a power computation unit, a comparing unit, a statistic unit and a time slot set unit.

Data acquisition method and system for implementing data acquisition in SCDMA system

Multiple point demodulation and method for regulating synchronous CDMA system as quasi-synchronization each frame for

In SCDMA communication system, under complex transmission environment, the upgoing synchronism deviation appears in some frames for individual user in time period unable to use synchronization marks caused by factors such as variation in channels, the receiving deviation at terminals and timing deviation etc. The invented method treats the synchronism deviation appeared. The method uses the strategy of demodulation at multiple times in base station side, determines the optimal receiving position, where the point possesses the maximum S/N ratio or maximum demodulation power. The upgoing signalis demodulated at the optimal point. Meanwhile, using the original command for adjusting synchronism deviation down transmits the information of the optimal position.

Qos processing method in SCDMA wireless communication system

This invention relates to a method for processing QoS in a SCDMA wireless communication system including the following steps: 1, a terminal maintains user information reported by frames by a spread link periodically after it enters into a session state, 2, a base station registers down S/N ratio and down error rate reported by the terminal and judges if it has started up the access limit currently, 3, if so, the base station judges if it needs to resume the access system and processes it accordingly based on a preset access resuming rule, 4, if the base station judges that the access limit isnot started up currently, it judges if it needs starting up the limit system according to a preset rule of access limit and processes it accordingly, which can realize the maximum combination of session quality and capacitance of base stations.

A terminal access method in TDD communication system

The utility model discloses a access method of terminal in TDD communication system, which is characterized in that: firstly, a base station arranges an access time slot separately between at least two time slots of uplink time slot, or at least according to current remote co-frequency interference condition and business capacity, arranging access time slot at one time slot interval of the uplink time slots and always detecting uplink access request transmitted by the terminal; then, the terminal tries to access at the access time slot of the base station. by setting the access time slot for the base station, the utility model flexibly chooses the part free from the interference by remote co-frequency for terminal access in uplink time slot on the base station to avoid the influence of remote co-frequency interference, thus overcoming the influence of the remote co-frequency interference upon the terminal access to the maximal extent.

Qos processing method in SCDMA wireless communication system

This invention relates to a method for processing QoS in a SCDMA wireless communication system including the following steps: 1, a terminal maintains user information reported by frames by a spread link periodically after it enters into a session state, 2, a base station registers down S/N ratio and down error rate reported by the terminal and judges if it has started up the access limit currently, 3, if so, the base station judges if it needs to resume the access system and processes it accordingly based on a preset access resuming rule, 4, if the base station judges that the access limit is not started up currently, it judges if it needs starting up the limit system according to a preset rule of access limit and processes it accordingly, which can realize the maximum combination of session quality and capacitance of base stations.

A terminal access method in TDD communication system

The utility model discloses a access method of terminal in TDD communication system, which is characterized in that: firstly, a base station arranges an access time slot separately between at least two time slots of uplink time slot, or at least according to current remote co-frequency interference condition and business capacity, arranging access time slot at one time slot interval of the uplinktime slots and always detecting uplink access request transmitted by the terminal; then, the terminal tries to access at the access time slot of the base station. by setting the access time slot for the base station, the utility model flexibly chooses the part free from the interference by remote co-frequency for terminal access in uplink time slot on the base station to avoid the influence of remote co-frequency interference, thus overcoming the influence of the remote co-frequency interference upon the terminal access to the maximal extent.

Device and method of road measurement for SCDMA network

Real-time face recognition behavior monitoring method and device, equipment and medium

The invention relates to the technical field of monitoring recognition, in particular to a real-time face recognition behavior monitoring method, device and equipment and a medium, and the method comprises the steps that a face image of an experiment operator and an image of an experiment operation action are acquired, and the face image and the image of the experiment operation action are acquired by a plurality of camera acquisition devices; based on the images of all the experimental operation actions, identifying categories of the experimental operation actions, and matching corresponding standard experimental operation actions according to the categories of the experimental operation actions; judging whether the experimental operation action is a standard experimental operation action or not based on the standard experimental operation action to obtain a judgment result; if the judgment result is that the experiment operation action is not standardized, identity information of the ...

Data acquisition method and system for implementing data acquisition in SCDMA system

The invention provides a method and system for collecting data in an SCDMA system. The system at least contains BSes, a BSC, an HLR, a data collection device, a GWF and an APP Server; the method contains the following: a plurality of BSes on an ACCO generate a paging request toward a DCE which launches a distribution establishment process of a wireless link on an ACCI; after signaling interactionwith other devices, the BSes transmit allowed information of data transmission to the DCE; then data transmission is conducted between the DCE and a DTE; upon receipt of data transmitted by the BSC, the GWH transmits the data to the APP Server through an SLa interface. By adopting the invention, transmission interference of multi-paths is avoided; accurate receiving and realizing in-phase CDMA isensured; interference among multiple accesses is reduced; system capacity is increased; the problem of aero link blockage caused by large capacity of data collection and short time of burst communication ...

Method and system for detecting uplink accessing test sequence of TDD communication system

The invention discloses a method for testing a multi-upstream access heuristic sequence in TDD communication system and a system thereof. The method has following steps: when multi-upstream access, a time slot window tests recevied present signal image and adjacent previous signal image and saves the test result; an interference cancellation treatment is processed between the test result of present signal image and the test result of the adjacent previous signal image; the interference cancellation treatment result is adjudged unitedly, a multi-upstream access heuristic sequence is searched. The system comprises a receiving module, a test module, an interference cancellation module, a united adjudging module and a measuring module. The invention improves the multi-upstream access heuristic sequence test probability of the base station effectively with stable interference, thereby the base station tests the multi-upstream access heuristic sequence reliably with apparent interference and ...

Processing device and method of digital beam forming signals

The invention discloses a processing device and method of digital beam forming signals. The processing device comprises a baseband processing chip and a plurality of chips, wherein the baseband processing chip is used for synthesizing baseband signals to be transmitted and decoding the received baseband signals, the multiple chips are connected in sequence, are connected with the baseband processing chip and are used for achieving digital baseband beam formation, the chips are of the same type, and each chip is used for processing a certain number of array elements. Through the processing device and method of the digital beam forming signals, the problems that beams in the prior art can not be changed once determined, the number of the beams is limited, and it is quite difficult to effectively restrain side lobes are solved.

Design method of VLAN function in wireless communication system

The invention provides a design method of a VLAN function in a wireless communication system, which comprises the following steps: a. a unique logical group number for a whole network is allocated to each virtual workgroup, and when an exchanger carries out VLAN planning, a VLAN ID is assigned to each logical group number, and VLAN IDs corresponding to identical logical group number in all exchangers are intercommunicated in a routing mode simultaneously; b. when base station initialization starts, a corresponding relation table of the logical group number of the superior exchanger and the VLAN ID is stored in an internal memory of the base station, when a terminal starts up to initiate registration, the base station obtains the logical group number of the terminal and stores the logical group number in the internal memory of the base station; and c. when the terminal initiates an uplink service, the base station inquires the corresponding relation table to obtain the VLAN ID corresponding ...

Method and terminals for quick log on base station in synchronous CDMA system

The invented method includes the frequency sweep procedure, which is for establishing a working frequency point for communication between a terminal and a base station, and the synchronization procedure for building the synchronization at the working frequency point for terminals to begin log on. In the frequency sweep procedure, the terminal using a fixed value of receiving gain does not carry out multiple adjustmkents for value of receiving gain. Instead, the signal in the downgoing synchronization head from the base station or the signal in upgoing synchronization head from other users areutilized to determine the available frequency so as to speed up the time for searching available frequency point greatly making quick logging on become possible.

Multiplex transmission method and device for multiple elements feeding of antenna array

Through a medium multiplexing technique, the method transfers multiple signals by using less feed lines so as to reach the purpose of reducing complexity and lowering the cost of a feed system of an antenna array. By using time-division multiplexing, frequency division multiplexing or code division multiplexing mode, in base band, intermediate frequency or radio frequency, modulating signals to be transferred to each array element forms a composited signal. The composited signal through one or few wires of transmission medium such as cable or optical fiber is sent to the position the antenna installed. The multiple array elements are recovered through demodulation. By using coherent carrier, modulating or transducing the said signal of multiple array elements forms the radio frequency signal for each array element.

TDD system base station disturbance null method and system

This invention provides a method for carrying out zero-trap of interference to up-line signals by the down-line signals of a far distance base station in TDD system including: using a correlator relating to the time character waveform of down-line signals of a far distance base station to carry out search and judgment to related peaks of several symbols before the up empty time sample signal and getting the space waveforms of the several related peaks to determine the maximum interference depth according to the positions of the peaks and getting interference space character vectors based on the space character waveforms and carrying out interference zero-trap to the interfered symbols of the up-link.

A terminal interference tool for TDD cellular communication system and its realization method

MMSE detection method for spread-spectrum OFDMA communication system

The invention provides an MMSE detection method for a spread-spectrum OFDMA communication system. The code spread factor of the spread-spectrum OFDMA communication system is Ns, and the payload is L, wherein L is more than or equal to half NS and less than or equal to Ns; and a code spread matrix with the size of Ns*L is formed by the first L columns of an original matrix w with the size of Ns*Ns. The method comprises the following steps of: a, performing OFDM demodulation and receiving to acquire a received symbol r; b, performing channel estimation, forming a diagonal matrix lambda h by Ns channel estimations, and estimating noise power sigma 2; c, calculating an MMSE detection operator BL when the payload is L, wherein the step c comprises the following substeps of: c.1, calculating an MMSE detection operator c when the payload is Ns; and c.2, recurring in turn according to a recursion rule to acquire a recursion rule: for given BL', first decomposing BL' in a way that QL' is a matrix ...

Method for base stations under same routing area to share tunnel resources

The invention provides a method for base stations under the same routing area to share tunnel resources, which comprises the following steps that: a terminal is switched to a new base station under a new routing area from an original base station under an original routing area; a tunnel is established between the original base station and the new base station and is subject to link maintenance through a heartbeat message; simultaneously the original base station informs the new base station of a base station list under the original base station and synchronously updates the base station list;the base stations under the same routing area mutually inform of the tunnel load conditions of the base stations; when the load of the original base station is extremely-heavy, the original base station analyzes the tunnel load conditions of other base stations under the original routing area and shares partial load per se to the base stations with low current load; and when the new base station does ...

Terminal ad hoc network access method

The invention provides a terminal ad hoc network access method comprising a step a that a transmitting party transmits an access frame detection signal from a random position of a free time slot detected or a system preset position, receives signals of other terminals at other time frames of the time slot, reinitiates access randomly after a while if the access fails, and transmits business messages at the time slot if the access succeeds; and a step b that a receiving party receives synchronization information and the detected signals of other terminals, creates a local dynamic routing table, receives business messages of other terminals, conducts local processing when determining that the information destination address is the terminal, and forwards the business messages when the destination address is other terminals.

Multimedia cluster scheduling system and method thereof

The invention provides a multimedia cluster scheduling system which includes the following network elements: a terminal (terminals), a wideband base station (wideband base stations), a voice business gateway (voice business gateways), a video business gateway (video business gateways), an information issuing server (information issuing servers), a scheduling session controller, a comprehensive scheduling platform and a user database. The voice business gateway processes cluster voice and a point-to-point voice business. The video business gateway processes a video conference and a video monitoring business. The information issuing server processes an information issuing business. The multimedia scheduling session controller is responsible for resource scheduling and unified session control of the cluster voice, the point-to-point voice, the video conference, the video monitoring and information issue, and simultaneously, is responsible for a mobility management function. The comprehensive ...

Upload synchronizing method for time division duplex synchronous code division multiples address wireless communication signal

The downlink and the uplink are in same carrier wave in the system. The up frame and the down frame are transmitted alternately. Adjacent down frame and up frame possesses symmetry. The method includes the procedure (1) for detecting the downgoing signal, and the procedure (2) for adjusting the transmission time of the upgoing signal. In procedure (1), the variation in the channel reflected in the parameters is detected out. In the procedure (2), based on the variation in the channel, the transmission time of the upgoing signal is adjusted. Synchronous adjustment can be carried out for each frame. The upgoing synchronous adjustment is in time and accuracy.

Real-time monitoring system for electromagnetic environment of synchronous CDMA communications system

The method includes following procedures. Data are collected from the upgoing synchronization time slot. Whether the upgoing synchronization signal is existed in the frame of the collected data frameis detected and judged. If there is no upgoing synchronization signal in the detected synchronization frame, then the autocorrelation operation is carried out for the data frame in order to determinewhether interference is existed. The number of the interference sourse ane their transmit directions in the frequency range used by the base station are calculated out as well as the message of the interference warning and the channel malfunction are sent to the network monitoring center. The method monitors interferences and sends related information to monitoring center by using unoccupied timeslot.

Terminal ad hoc network routing method

The invention provides a terminal ad hoc network routing method which includes a step a that a terminal maintains a local dynamic routing table which is transferred and updated among terminals at a state of network light load; a step b that a system business adopts a flooding routing method, a local node assisted routing method, or an on-demand routing method or any combination of the three; and a step c that the terminal selects the routing method based on business type and the local dynamic routing situation.

Method for frequency planning in TDD mode by using auxiliary base station

System and method for mobile terminal ad-hoc network

The invention provides a system for a mobile terminal ad-hoc network. In the system, system resources are divided into mutually orthogonal sub-blocks, and each separate sub-block is divided on a time axis in an m-sequence manner; when receiving, a terminal transmits a spread spectrum coding sequence carrying a user identifier at a time slot determined to be free for resource preemption; after preemption of free resources, a synthesized code stream by a local user baseband code stream and baseband code streams forwarded by other terminals is transmitted in a single user form from an empty opening; a system network topology is described in a routing table matrix, and is transferred and updated among the terminals in light load of the network; and the system business adopts a flooding routing method, a local node assisted routing method, an on-demand routing method or any combination of the three. The invention also provides a method for a mobile terminal ad-hoc network. According to the invention ...

Method and device for ranging in wireless communication system

The invention provides a new ranging method, which comprises the following steps that: a, a base station is provided with a main ranging slot and at least one auxiliary ranging channel on the upstream, wherein the auxiliary ranging channel occupies partial resources of an upstream service slot, and a certain interval is kept between the main ranging slot and the auxiliary ranging channel; b, a terminal sends a ranging signal at the main ranging slot or the auxiliary ranging channel; and c, the base station detects the ranging signal, computes synchronization offset and feeds back to the terminal. The invention also provides a device for ranging in an OFDMA wireless communication system. The terminal side comprises an indication receiving unit, a main ranging slot detection unit and an auxiliary ranging channel transmission unit; and the base station side comprises a transmission and detection indication unit, a main ranging slot detection unit and an auxiliary ranging channel detection ...

Method and device for ranging in wireless communication system

The invention provides a new ranging method, which comprises the following steps that: a, a base station is provided with a main ranging slot and at least one auxiliary ranging channel on the upstream, wherein the auxiliary ranging channel occupies partial resources of an upstream service slot, and a certain interval is kept between the main ranging slot and the auxiliary ranging channel; b, a terminal sends a ranging signal at the main ranging slot or the auxiliary ranging channel; and c, the base station detects the ranging signal, computes synchronization offset and feeds back to the terminal. The invention also provides a device for ranging in an OFDMA wireless communication system. The terminal side comprises an indication receiving unit, a main ranging slot detection unit and an auxiliary ranging channel transmission unit; and the base station side comprises a transmission and detection indication unit, a main ranging slot detection unit and an auxiliary ranging channel detection ...

Method for adjusting ascending random access time slot in TDD radio communication system

This invention relates to a method and a system for adjusting up-line random access time slot in a TDD radio communication system, in which, the method includes: computing and reporting power values corresponding to first n symbols of a symbol set and computing the statistic volumes of the power values of first m symbols and the latter n-m symbols when the power values corresponding to the first m symbols in the n symbols are greater than a first threshold value, and adjusting the up-line random access time slot to time scale of TG+Ts xm+tau when the difference of the statistic volume of the power values corresponding to the first m symbols and those of the n-m symbols is greater than a second threshold value. The system includes: a power computation and statistic unit, a power comparing unit, a power statistic unit and a time slot adjusting unit.

Medical data acquisition and management method and system, terminal and storage medium

The invention relates to a medical data acquisition management method and system, a terminal and a storage medium, and belongs to the technical field of data acquisition management, and the method comprises the steps: obtaining a sickbed image of a preset sickbed; judging whether the preset sickbed has a treatment object based on the sickbed image; if yes, acquiring required drug information of the treated object; acquiring a medicine type and a medicine quantity corresponding to the medicine type based on the required medicine information; acquiring a medicine taking control instruction based on the medicine type and the medicine quantity; and controlling a preset medicine taking device to take medicine based on the medicine taking control instruction. The method has the effects of ensuring that the actual medicine dosage of the patient is the same as the actual required dosage as much as possible and reducing the probability of potential safety hazards.

Method for base stations under same routing area to share tunnel resources

The invention provides a method for base stations under the same routing area to share tunnel resources, which comprises the following steps that: a terminal is switched to a new base station under a new routing area from an original base station under an original routing area; a tunnel is established between the original base station and the new base station and is subject to link maintenance through a heartbeat message; simultaneously the original base station informs the new base station of a base station list under the original base station and synchronously updates the base station list; the base stations under the same routing area mutually inform of the tunnel load conditions of the base stations; when the load of the original base station is extremely-heavy, the original base station analyzes the tunnel load conditions of other base stations under the original routing area and shares partial load per se to the base stations with low current load; and when the new base station does ...

A method for TDD system terminal to switch between different frequent points

Hospital infection monitoring management method, device, equipment and medium

The invention relates to the technical field of medical safety management, in particular to a hospital infection monitoring management method, device and equipment and a medium, and the method comprises the steps: determining all target medical instrument information in an operation based on an operation type, and performing preoperative instrument evaluation on the medical instrument image by using an instrument cleaning standard and all target medical instrument information to obtain an instrument evaluation result, and when the instrument evaluation result is that the instrument preparation is unqualified, sending out instrument violation warning information. And when the instrument preparation is qualified, continuously monitoring the operation behavior of the operation personnel by using the standard operation until the operation is finished, and sending out behavior violation warning information when monitoring that the non-compliance behavior exists. Furthermore, after the operation ...

Method and system for adjusting protection time slot

This invention provides a method for adjusting protection time slot including computing power of every symbol in a symbolic set composed of first n symbols of an up channel reported by a base station, when the power of a first symbol in the set of the up service is greater than a first threshold value, it computes statistic volumes of the power values of continuous n symbols beginning from the symbol, and the n symbols include symbols with the first m power greater than the threshold value and n is greater than m, when the difference of the power of said first m symbols and the latter n-m symbols is greater than the second threshold value, the length of the protection time slot is set at T+mt+tau, and T is the smallest one, mt is the time occupied by the first m symbols, tau greater than 0 is the set value. This invention also provides a system for adjusting protection time slot including: a power computation unit, a comparing unit, a statistic unit and a time slot set unit.

Digital beam-forming signal processing device and method thereof

The invention provides a digital beam-forming signal processing device and a method thereof, wherein the digital beam-forming signal processing device comprises the components of a plurality of beam-forming chips which are used for realizing antenna grade synthesis of a digital baseband beam, wherein the types of the chips in the plurality of beam-forming chips are same, and each single chip in the plurality of beam-forming chips is used for processing a preset number of antennae; and a plurality of baseband processing chips which are connected with the plurality of beam-forming chips and are used for realizing functions of integrally synthesizing the digital baseband beam and the basic functions of the baseband, wherein the types of the chips in the plurality of baseband processing chips are same, and the single chip in the plurality of baseband processing chips is used for processing the preset number of beams. The digital beam-forming signal processing device and the method thereof settle ...

Method and system for detecting uplink accessing test sequence of TDD communication system

The invention discloses a method for testing a multi-upstream access heuristic sequence in TDD communication system and a system thereof. The method has following steps: when multi-upstream access, atime slot window tests recevied present signal image and adjacent previous signal image and saves the test result; an interference cancellation treatment is processed between the test result of presentsignal image and the test result of the adjacent previous signal image; the interference cancellation treatment result is adjudged unitedly, a multi-upstream access heuristic sequence is searched. Th e system comprises a receiving module, a test module, an interference cancellation module, a united adjudging module and a measuring module. The invention improves the multi-upstream access heuristicsequence test probability of the base station effectively with stable interference, thereby the base station tests the multi-upstream access heuristic sequence reliably with apparent interference andreduces ...