111 results about "Cell throughput" patented technology

The invention discloses a channel status indicator (CSI) measuring method which comprises the steps of: an eNB sends a CSI measuring indication to a UE before an SCell is activated; and the UE carries out a CSI measurement according to the CSI measuring indication. Correspondingly, the invention further provides a CSI measuring system which can ensure that the UE reports an accurate CSI measurement result to the eNB after the SCell is successfully activated so that the SCell can be accurately scheduled after being successfully activated, which is conducive to the improvement of utilization rate of wireless resources and cell throughput, and a more significant scheduling gain especially for a situation of a larger number of activated Scells or more frequent activation or deactivation operations.

A radio communication apparatus enhances cell throughput by adaptive selection of spatially multiplexed channels in consideration of interferences in a local cell and reducing load for calculation of array weights by storing them in advance as fixed values and outputting fixed beams. To reduce the calculation load for the adaptive selection of spatially multiplexed channels that takes interferences within the local cell into consideration, the radio communication apparatus adopts a packet scheduling method that selects a combination of fixed beams and determines the number of spatially multiplexed channels, based on the fixed beams for mobile apparatuses with packets waiting to be transmitted and pre-calculated correlative quantities of inter-beam interferences between these fixed beams.

The invention relates to the field of communications, in particular to a user matching and power allocation method and apparatus for improving the cell throughput. The method comprises the steps of conducting similarity grouping of all user terminals in a control range based on channel state associated information of the user terminals, wherein, in the same similarity group, the difference of the channel state associated information between any two terminals does not exceed a preset threshold; performing at least one round of selection, matching the user terminals in each similarity group, and selecting one user terminal at most from each similarity group to form a matching group during each round of selection; and each time one matching group is formed, allocating transmitting power for each user terminal in the matching group. Thus, the invention can effectively achieve multi-user non-orthogonal multiple access multiplexing based on power distinguishing, further improves the cell throughput significantly, and is low in complexity and higher in accuracy as compared with an exhaustive search user matching method.

The embodiment of the invention discloses a 5G cell capacity assessment method and device, relates to the technical field of communication, and is used for solving the technical problem that 5G cell transmission resources are wasted or insufficient due to the fact that the 5G cell throughput assessment result is greatly different from the actual situation in the prior art. According to the embodiment of the invention, the first distribution function of the reporting frequency of the CQI value of the cell to be evaluated can be obtained from the 4G network of the cell to be evaluated. Then a second distribution function of SINR in 5G network is acquired according to a preset CQI value -5G SINR relation function and the first distribution function, and the estimated throughput of the typicalSINR is acquired according to the preset step size, the second distribution function, and the typical SINR average throughput calculates the estimated throughput of the typical SINR, and finally thesummed summation result of all typical SINRs is taken as the throughput of a cell to be evaluated. The embodiment of the invention is used for 5G cell capacity evaluation.

The invention discloses a multi-antenna pilot frequency mapping method by aiming at a second frame structure of a long-term evolution system. A base station sends control information to a mobile terminal by precoding according to a request of the terminal; the mobile terminal computes a channel matrix according to a resource block in the control information, and feeds the obtained channel information to the base station; the base station determine a multi-antenna processing mode used by the data channel according to the channel information, and sends the control information of the multi-antenna processing mode to the mobile terminal; the base station sends information of the data channel by the multi-antenna processing mode, and inserts the pilot frequency with a pilot frequency structurecorresponding to the multi-antenna processing mode; and the mobile terminal estimates the control channel and the data channel by the multi-antenna processing mode and the corresponding pilot frequency structure, and finishes decoding of the received data. The method supports space division multiplexing of multi-beams and improves a cell throughput; and the base station smartly selects an MIMO mode used by the mobile terminal according to the condition of the channel.

The reuse partitioning problem for a cellular orthogonal frequency division multiple access (OFDMA) system with dynamic subcarrier allocation is considered. One objective is to allocate the network resources in an efficient way in order to maximize the system's total throughput under individual user's quality-of-service (QoS) constraint. A suboptimal two-step approach is used where the radio network controller (RNC) solves the network planning problem and each base station (BS) solves the cell throughput maximization problem. Compared with the optimal resource allocation scheme, the approach described herein has much lower computational complexity in the RNC. Moreover, the communication overhead between each BS and the RNC is reduced substantially which renders our approach more practical for delay sensitive applications. Throughput increase is demonstrated

The invention relates to the communication field, and provides a method and a device for distributing PDSCH (physical downlink shared channel) power for solving the problem that existing power distribution fails to coordinate with ICIC (inter-cell interference coordination) mutually. The method comprises the following steps: according to the threshold RNTPthreshld of a cell RNTP (relative-narrowhand Tx powerindictor), determining the maximum value EA_max of an EPRE (energy per resource element) of a class A resource unit which is determined according to a cover requirement of a PDSCH on a PRB (physical resource block) with a number of nPRB when an ICIC distribution power is required to be combined; determining the maximum value EA_max_RNTP_TH of the EPRE of the class A resource unit limited by the ICIC; and according to the comparison result of the EA_max and the EA_max_RNTP_TH, determining whether the maximum launching power distributed to UE (user equipment) is limited according to the requirements of ICIC when power distribution is performed on the PRB with the number of nPRB. The method and the device can be used for achieving a better inter-cell disturbance coordination effect, and further improving the cell throughput and the spectral efficiency.

The invention discloses a method for determining cell throughput, which aims at solving the problem that the evaluation on the network performance of an HSUPA (High Speed Uplink Packet Access) system is inaccurate because the cell throughput is determined according to the static parameters and the throughput of the HSUPA system is determined according to the determined cell throughput in the prior art. The method comprises the following steps of: measuring the current RSCP (Received Signal Code Power) value of a P-CCPCH (Primary Common Control Physical Channel) of each cell in the HSUPA system; and determining the throughput of each cell, wherein, for each cell, the E-DCH (Enhanced Dedicated Channel) signal to noise ratio of the cell is determined according to the RSCP value of the P-CCPCH of the cell and adjacent cells, and the throughput of the cell is determined according to the determined signal to noise ratio and the corresponding relationship between the preset cell signal to noise ratio and the cell throughput. When the technical scheme of the invention is adopted, the accuracy of the evaluation on the network performance of the HSUPA system can be improved. The invention is more favorable for the network planning and optimization.

The invention provides a method of dynamically selecting wireless resources in a dual-connectivity DC mode. The method comprises steps: an MeNB and an SeNB interact load information through an X2 interface; UE reports an uplink split bearer memory status report BSR to a network side; the MeNB makes a decision of dynamically changing wireless resources according to the load information of the MeNB and the SeNB and the BSR information, and the UE is announced through PDCCH signaling; and the UE activates the corresponding wireless resource configuration according to the PDCCH signaling. The uplink split bearer resources can be dynamically changed according to the load condition of the network side and the UE service amount through the physical layer signaling, and an important role is played in improving the rate and the cell throughput.

The invention discloses message transmission method and system. The method comprises the steps of encapsulating a GTPU head and a tunnel head for an uplink message through a relay base station device; sending the uplink message to a CPE (Central Processing Element); modifying the source IP address of the tunnel head into the public network IP address of the relay base station device through the CPE; sending the uplink message to DeNB; encapsulating corresponding IP+UDP+GTPU head for the uplink message through the DeNB; sending the uplink message to an SGW (Signal Gate Way); de-encapsulating the IP+UDP+GTPU head encapsulated in the uplink message through the SGW; sending the uplink message to a tunnel server through the relay base station device according to the target IP address of the tunnel head, encapsulated in the uplink message; de-encapsulating the tunnel head encapsulated in the uplink message by the relay base station device through the tunnel server; sending the uplink message to the SGW; sending the uplink message to a target device through the SGW according to the target IP address of the uplink message. According to the method and system, the difficulty at deployment for wired transmission can be solved through the wireless transmission environment, and therefore, the problem of limitation on communication in some regions is avoided, the system coverage range is expanded, and the cell throughput is increased.

The present invention discloses a method and an apparatus for modifying a channel quality indication (CQI). This method may comprise: calculating a scaling factor for the channel quality indication based on uplink channel information and an antenna virtualization pre-coding scheme; and modifying the channel quality indication reported by user equipment by using the scaling factor. According to the technical solutions of the present invention, the antenna virtualization factor is considered in performing CQI modification and. Thus, this solution can overcome the problem of CQI mismatch, enhance the completeness and accuracy of CQI feedback, and improve the cell throughput performance and frequency utilization.

The invention provides a method for paging a relay node system. The method comprises the steps that: a base station receives a paging message from a mobile management entity MME; the base station selects time frequency domain resource information which transmits the paging message, and transmits the paging message and the time frequency domain resource information to a relay node; and the base station and the relay node transmit the paging message on the time frequency domain resource. The invention also provides base station equipment. Due to the technical scheme provided by the invention, the problem that RN and BS coordinate in the system for realizing the paging is solved. By introducing the RN in a cellular network, the cell edge coverage can be improved, and the cell throughput can be improved.

The present invention provides a method for obtaining an uplink transmit power control parameter, where the method is applicable to a radio communication system using a CoMP transmission technology and includes: obtaining, by an base station, a downlink path loss of a serving cell serving for a UE and a sum of a each difference between a downlink path loss of each coordinated cell serving for the UE and the downlink path loss of the serving cell; obtaining, by the base station, a downlink path loss of the UE in a coordinated multi-point transmission environment and a transmit power control command of the UE in the coordinated multi-point transmission environment according to the downlink path loss of the serving cell and the sum of differences between downlink path losses. Thereby, the reduction of cell throughput and waste of UE power consumption is avoided.

The invention discloses a method for transmitting a downlink multi-user multiple input multiple output (MIMO) signal and a base station. The method comprises the following steps of: dividing remote radio frequency unit (RRU) ports into P / M antenna groups, and storing corresponding relationships between the antenna groups and the ports; judging channels with users, and finding antenna groups corresponding to the channels; receiving pre-coding matrixes fed back from the users, selecting users in different antenna groups, and performing downlink multi-user MIMO transmission; informing the users of the antenna groups and the pre-coding matrixes for downlink data transmission, wherein the pre-coding matrixes are selected from a codebook set with a port number M by the users; and weighting data according to the pre-coding matrixes, outputting the weighted data to the users at antenna ports of the users, and not transmitting the data of the users by using the other ports. Useful signal transmission power is improved, interference is reduced, and indoor cell throughput is improved.

The invention discloses a game theory-based radio resource optimization method in an LTE-A relay system. The method mainly resolves the problem of compromise between system throughput and user fairness when relays are introduced to a cell. The method comprises the steps that SINR values of all users in the cell are calculated, whether the users are connected to a base station or the relays is determined according to the SINR values of the users, the reachable data rate and the minimum required rate of each user are calculated, the SINR dispersity of each micro cell is calculated, and the cell balance index meeting cell throughput maximization and user fairness optimization is obtained through the game theory. According to the game theory-based radio resource optimization method, the SINR dispersity of the users is used as the main parameter of fairness, and fairness of the users in the center of the cell and the users on the edge of the cell are improved obviously; the throughput, the fairness and the game theory are combined, so that system resources are used more effectively, the throughput is maximized under the condition that the fairness is guaranteed, and whole performance of the system is enhanced.

The invention discloses a dispatching method and device. The method includes: dispatching requirement of user is calculated; a resource block with the best channel quality is searched according to the dispatching requirement of user; and the searched resource block with the best channel quality is allocated to the user. The dispatching device comprises a calculating module used for calculating the dispatching requirement of user, a searching module used for searching the resource block with the best channel quality according to the dispatching requirement of user and an allocating module usedfor allocating the searched resource block with the best channel quality to the user. Compared with prior art, the dispatching method and dispatching device provide by the implementation of the invention are utilized, calculation of RB quantity required by user and RB allocation can be completed in one step, no algorithm iteration is required, thus being easy to implement; besides, the RB with the best channel quality can be identified, and dispatching efficiency and cell throughput can be improved.

The invention provides a double-bounce balance distributed scheduling algorithm TBDRC based on a relay cache to achieve balance between the first bounce backhaul link throughput between a base station eNB and a relay and a second bound access link throughput between the relay and relay UE, so that the resource utilization rate and cell throughput of a relay enhanced cellular system are increased. According to the algorithm, the data volume in the relay cache is updated according to the ACK feedback information of the relay UE, normal transmission of data is guaranteed, repeated correct transmission of the same data is avoided, resource waste of a backhaul link can be reduced, and the throughput of an access link is further increased.

Disclosed are a receiving apparatus, a data receiving method, a channel estimating apparatus and a channel estimating method for multi-user interference (MUI) signals according to the present invention. The channel estimating apparatus for MUI signals has: a user type determining section configured to determine whether a UE apparatus corresponding to an own station belongs to a first type user or a second type user and to determine demodulation information to use in channel estimation of MUI signals based on the type of the UE apparatus corresponding to the own station; and a second channel estimating section configured to perform channel estimation of a multi-user interference signal based on the determined demodulation information to use in channel estimation of MUI signals. In the present invention, the UE apparatus is classified by type and the demodulation information to use in channel estimation of MUI signals is determined based on the type of the UE apparatus. With this structure, it is possible to improve channel estimation accuracy and further to improve the performance of data reception and user and cell throughputs.

The embodiment of the invention provides a method and a device for establishing a data service model. The method comprises: when the number of users is not greater than a first threshold value, adopting a first data service model to describe the increase of cell throughput along with the increase of the number of the users, and to describe a process in which an individual user throughput decreases; when the number of the users increases and exceeds the first threshold value, adopting a second data service model to describe decrease of the cell throughput, and to describe the process in which the individual user throughput decreases; and acquiring the best relation between the number of the users and the throughput according to the first data service model and the second data service model. The data service model is established in a statistical manner, the Markov process is not used as the basis, and the model is proposed based on actual test results; meanwhile, parameters alpha and beta of the model can be corrected according to a scene, so that the model has a broader application range; and based on the data service model, the relation between the number of the users and the throughput is described and the maximum cell throughput is predicted.

The invention relates to the field of mobile communication, and discloses a communication base station and a beamforming method thereof. The beamforming method of the communication base station comprises the following steps that the base station receives first positioning information based on a satellite navigation system from a mobile terminal; the base station sends a differential positioning request to a ground-based augmentation system of the satellite navigation system according to the first positioning information; the base station performs differential calculation on the first positioning information according to a differential correction value returned from the ground-based augmentation system, so as to obtain second positioning information; and the base station calculates a position angle between the base station and the mobile terminal in three-dimensional space according to second positioning information and known position information of a base station antenna, and forms a directional beam for the mobile terminal in the position angle through the base station antenna. The beamforming method of the communication base station can improve link quality of wireless communication and increase cell throughput.

The invention aims to provide a method and equipment for realizing dispatching of users based on inter-cell interference coordination parameters. Specifically, a base station end sends inter-cell interference coordination information obtained by detection to corresponding central control equipment; inter-cell interference coordination parameter information corresponding to the inter-cell interference coordination information and service load ratio information which are sent by the central control equipment are received; according to the service load ratio information, the inter-cell interference coordination parameter information is finely adjusted, so as to obtain corresponding target inter-cell interference coordination parameter information; and according to the target inter-cell interference coordination parameter information, users that the base station serves are dispatched. Compared with the prior art, the method provided by the invention can inhibit interference between macro cells and interference of macro cells to micro cells, can dynamically adapt to changes of nonuniform service loads and user distribution in an LTE-A network, and also remarkably improves cell throughput, particularly the throughput of cell edge users.

Multi-band handover via an adaptive handover threshold The invention relates to a method for adapting a handover threshold for handover between a first frequency band and a second frequency band in a multi-band communication arrangement to communication conditions in a communication cell. The method comprises determining (101) a cell throughput of the communication cell, and amending (103) a handover offset of the handover threshold in dependency on the cell throughput.

The invention provides a CoMP (coordinated multiple point transmission / reception) multi-user scheduling method based on QoE (quality of experience). The method includes: grouting users, to be more specific, grouping the users into several groups according to the large-scale channel response of the base station of the cells where the users are located; determining user priority, to be more specific, determining the subjective QoE priority of the users according to the subjective wills of the users to business, determining the objective QoE priority of the users, and synthesizing the subjective priority and the object priority to determine the final priority of the user; scheduling the users, to be more specific, scheduling the users according to the grouping and the priority. By the method, user capacity is increased greatly by reasonable scheduling while cell throughput rate is guaranteed and the high-QoE users are scheduled preferentially.

The invention discloses a time-frequency enhancing inter-cell interference coordination method based on carrier aggregation. The method comprises the following steps: defining a component carrier of a sending user PDCCH to be a PCC and a component carrier of a sending user PDSCH to be an SCC, considering a scenario which has pico eNBs with the number of numpico at the position closer to a central macro station, wherein the distances between the pico eNBs are farther; performing cell range expanding on pico, on the premise that a central macro cell is an interference source cell and pico users undergo severe downlink interference from the central macro cell, performing ranking from low to high according to center frequency points of all the component carriers, and performing configuration of a cell specific candidate PCC, configuration of a low-power PDSCH subframe, configuration of a cell specific candidate SCC and dispatch of the component carriers. On the premise that all the cells serve as the spectral efficiency of one system, the user PDCCH SINR and PDSCHSINR of the pico cell are improved, and edge user throughput and cell throughput have large gain.

The invention provides a power processing method and device as well as a storage medium. The method comprises the following steps: monitoring resource blocks of a current cell at a predetermined time interval to obtain a monitoring result; reducing the transmission power of transmitting cell reference signals on transmission resources to the specified power according to the monitoring result, wherein the transmission resources at least include one of symbols and specified resource blocks, the specified resource blocks at least include one of scheduling resource blocks, non-scheduling resource blocks and central N resource blocks, and N is a positive integer. According to the power processing method and device as well as the storage medium provided by the invention, the problem that the cell interference that is generated by transmitting the cell reference signals affects the cell throughput in related technologies can be solved, the interference of the cell reference signals to other cells can be effectively avoided, and thus the interference to other cells can be reduced, and the cell throughput can be increased.

The present invention discloses a method and apparatus of performing outer loop link adaptation (OLLA) operation. This method may comprise: accelerating in an initial probing phase, increase of an OLLA scaling factor until obtaining a negative result regarding codeword selection; and fine modifying, in a fine modification phase, the scaling factor using an upturn factor and a downturn factor in response to the result regarding codeword selection so that a channel quality indication, which is modified using the scaling factor, is matched with its actual value. Compared with the prior art, the technical solution as provided in the present invention can quickly modify a CQI to match its actual value, thus this solution may effectively mitigate the CQI mismatch, improve the CQI feedback accuracy, and further enhance the cell throughput performance and frequency utilization.