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35results about How to "Achieving Interference Coordination" patented technology

Method for coordinating interference

The invention discloses a method for coordinating interference, comprising the following steps: dividing time slot resources of adjacent three cells into three parts in advance, wherein all system available frequency resources on one part of time slot resources serve as special time frequency resources, all system available frequency resources on another part of the time slot resources serve as common time frequency resources, and all system available frequency resources on the rest part of the time slot resources serve as shared time frequency resources for the three cells; determining the special time frequency and the common time frequency resource for each cell according to the divided time slot resources; and distributing resources for cell edge users (CEU) and cell central users which request for dispatching respectively by using the above divided time frequency resources so as to lead the system to carry out flexible resource configuration according to the current position of the dispatched users, thus realizing interference coordination among cells which are suitable for a TDD mode system.
Owner:POTEVIO INFORMATION TECH +1

Method and device for coordinating dynamic interference between neighboring cells of wireless communication system

The invention provides a method for defining home information infrastructure (HII) and a scheme for coordinating dynamic interference of multi-point cooperation between cells in an orthogonal frequency division multiplexing (OFDM) wireless communication system based on HII. In the scheme, co-scheduling is performed between the neighboring cells by using the HII mechanism, so that the interference between the cells is suppressed, and the throughput rate and the quality of service (QoS) level of a cell-edge user are effectively improved. Particularly, a base station generates an HII list for each main interference neighboring cell and periodically transmits the list to the base station of the interference neighboring cell. Meanwhile, when the base station is subjected to uplink scheduling, the HII list of the cell per se is updated according to the HII list transmitted by the interference neighboring cell, and the user is scheduled according to the list and the channel condition.
Owner:NEW POSTCOM EQUIP

Method for achieving collaborative multipoint transmission dispatch and power distribution

ActiveCN103281770AAdaptableAlgorithmic delay overhead is smallPower managementTime dynamicsReal-time computing
The invention discloses a method for achieving collaborative multipoint transmission dispatch and power distribution. Aiming at each PRB, the method adopts the algorithm of transmission dispatch for determining a user of a collaborative cluster and dispatch, namely, RSRP values are counted, SINR is calculated according to the RSRP values and a current condition, edge users which are served in each cell of each base station are found out, the collaborative cluster and the edge users which are served by the collaborative cluster are determined in an iterating mode, and an idle base station selects central users of the cell to conduct serving; power pre-distribution is conducted through a water-filling algorithm on each base station; a non-cooperative game is adopted in each PRB to conduct interference coordination and optimum allocation of power is achieved. The method has the advantages that a collaboration method is adjusted according to real-time dynamic conditions of the system parameters of each PRB, dispatch is flexible and adaptability is strong; by the adoption of the centralized transmission dispatch scheme, expenditure of algorithm time delay is low and real time performance is strong; due to the fact that the non-cooperative game is adopted to achieve interference coordination in CoMP, power distribution is reasonable and handling capacity of the edge users is improved.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Inter-equipment coordination method, wave beam training method and device

An embodiment of the invention discloses an inter-equipment coordination method used for coordinating interference among high frequency cells. The method provided by the embodiment of the invention includes that a first equipment sends a first wave beam to a target terminal; a second equipment sends a second wave beam to the target terminal; the target terminal measures the received first wave beam and the second wave beam; if the first measurement value and the second measurement value meet preset conditions, the target terminal sends notification to the first equipment and indicates the first equipment and the second equipment for transmission coordination, so that the second equipment is enabled to adjust the second wave beam so as to reduce interference on the first wave beam by the second wave beam. The embodiment of the invention also provides a related wave beam training method and related device, equipment, terminal and system.
Owner:HUAWEI TECH CO LTD

Method for coordinating semi-static interference

The invention discloses a method for coordinating semi-static interference, comprising the steps as follows: configuring frequency resources for cells of each base station according to a preset frequency distribution strategy when a system is in an initial state, wherein the frequency resources comprise movable bandwidth; performing united interference coordination when the base station to which user equipment (UE) belongs receives a united interference coordination request sent by an adjacent cell base station after the UE enters the cell interference measurement and reporting stage; and performing distributed interference coordination process according to the interference measurement reports and movable bandwidth of the cell thereof when the base station to which the UE belongs receives the interference measurement reports sent by the UE. By adopting the above scheme, the method for coordinating semi-static interference in the invention is suitable for a scene in which each cell has uniform load distribution as well as a scene in which each cell has non-uniform load distribution.
Owner:POTEVIO INFORMATION TECH +1

Interference coordination method and system

The invention discloses an interference coordination method, which comprises that: user equipment (UE) feeds interference user equipment (I-UE) which is a relay back to a base station; the base station increases the scheduling information of the I-UE in a relay physical downlink control channel (R-PDCCH) aiming at the relay, and transmits the R-PDCCH to the relay; and the relay allocates time-frequency resources orthogonal to time-frequency resources used by the I-UE on an access link of the relay according to the received scheduling information so as to realize interference coordination. Meanwhile, the invention discloses an interference coordination system. The method and the system can better realize interference coordination in a long-term evolution-advanced (LTE-A) system.
Owner:POTEVIO INFORMATION TECH

Cell interference coordination method used in heterogeneous network and heterogeneous network

The invention discloses a cell interference coordination method used in a heterogeneous network and the heterogeneous network. The method comprises the steps that a first base station does not transmit control information on at least one subframe of at least one kind of frequency domain carrier wave in a component carrier wave, and configuration information in regard to an aggregation carrier wave of the first base station is obtained; a second base station does not transmit control information on more than one subframe, except the at least one subframe, in the component carrier wave according to the configuration information. By means of the method, each base station can take the positions of subframes which do not transmit control information of neighboring base stations as control channels of signal transmission of the base station, so that the control channels are not interfered by the neighboring base stations, and then cell interference coordination in the heterogeneous network with carrier aggregation available is achieved, spectrum effectiveness of the edge of a cell is improved, and then service quality of the edge of the cell in the heterogeneous network with carrier aggregation available is improved.
Owner:CHINA TELECOM CORP LTD

Data communication method, system and device

The present invention relates to the technical field of communications. Disclosed in an embodiment of the present invention are a data communication method, system and device. A first base station covering a serving cell of a user equipment determines for the UE the resource scheduling information used for data communication in the serving cell, and sends the resource scheduling information to a second base station, the second base station being a base station in a cooperative cell of the UE, so that the second base station prohibits other UEs from occupying resources corresponding to the resource scheduling information; when receiving information of scheduling not allowed returned by the second base station, the first station will send uplink authorization to the UE to allow the UE to perform data communication over the resource corresponding to the above resource scheduling information in the serving cell, thus avoiding conflict of resource occupation by UEs between base stations, achieving interference coordination between base stations, and preventing interference of the data communication of UEs in a cooperative cell to the data communication of UEs in a cell.
Owner:HUAWEI TECH CO LTD

Uplink and downlink interference coordination processing method and apparatus

The present invention provides an uplink and downlink interference coordination processing method and apparatus. The method comprises the steps that subframe formats including an uplink subframe and a downlink subframe transmitted between a first network and a second network are configured, wherein the second network is a neighbor frequency band or a same frequency band of neighbor network of the first network, and the first network supports transmission of full downlink subframes; and the first network determines whether to start a downlink-against-uplink interference prevention mechanism according to the configured uplink subframe and downlink subframe of the second network. Through adoption of the method, a problem of how to coordinate interference by the networks of the neighbor frequency band and the same frequency band that support full downlink subframe and the network supporting only existing TDD subframe is solved, and downlinks of different networks can coordinate the uplink interference.
Owner:ZTE CORP

Femtocell clustering and macro user scheduling-based interference coordination method in heterogeneous network

The invention discloses a femtocell clustering and macro user scheduling-based interference coordination method in heterogeneous network, by utilizing the interference coordination of femtocell clustering and macro user scheduling in the heterogeneous network, a femtocell senses that whether the macro user exists around, and forms a femtocell interference cluster around each macro user, the interference cluster corresponding to the macro user asking for accessing a network reports feedback information to a macro base station through a feedback link, a macro cell selects a group K spare macro users for scheduling according to the feedback information, the macro cell selects (K-1) macro users to transmit data according to channel information of the macro user of the current time slot and informs the interference clusters corresponding to the rest macro users to communicate normally during the time slot, the macro user scheduling is repeated until the whole scheduling is finished. By utilizing the method, the coverage area of the macro cell is guaranteed; compared with the prior art, the method has the advantages that the more efficient frequency spectrum and power utilization rate can be realized.
Owner:XIDIAN UNIV

Adjacent channel inter-system interference coordination method and device

InactiveCN105873074AAchieving Interference CoordinationAvoid adjacent channel interference problemsNetwork planningComputer networkComputer science
The present invention provides an adjacent channel inter-system interference coordination method and device. The method comprises: a first network node sends the frame structure matching and configuration indication message to a second network node; and the first network node receives the frame structure matching and configuration determination message from the second network node. According to the invention, the adjacent channel inter-system interference is avoided.
Owner:ZTE CORP

RNTP (relative narrowband transmission power)-based interference coordinating method in LTE (long term evolution) system

The invention provides an interference coordinating method including: every other preset period, making statistics on data rate Rn of each RB (resource block) of a cell in a system in a preset period to form an RNTP (relative narrowband transmission power) bit map, and transmitting the RNTP bit map to neighboring cells; and summing the RNTP bit maps received in the preset periods of one optional cell in the system according to the RBs, grouping the RBs according to summing results, and computing transmission power of each RB with the group serving as unit, wherein the transmission power of the RBs in the same group is the same, and the larger summing result the group has, the smaller the transmission power of the RB group is. By the aid of the interference coordinating method, resource utilization effectiveness can be guaranteed, and interference coordination is realized.
Owner:POTEVIO INFORMATION TECH

Electric power LTE 230 network frequency distribution and interference coordination method under static demand

The invention relates to the technical field of the electric power system communication, and especially relates to an electric power LTE 230 network frequency distribution and interference coordination method under a static demand. The technical scheme is as follows: analyzing past yearly electric power service use data in a public network in a planning region to obtain an electric power network static demand diagram in an LTE network planning region, and establishing an electric power service information amount model; planning base stations according to the electric power network static demand diagram, and dividing the wireless frequency through the priorities of services to realize the physical isolation of the services; and regulating the transmitting power of a secondary base station according to the periodicity of edge service data use, thereby reducing the interference on a primary base station edge service by the secondary base station. The method disclosed by the invention has the advantages that the frequency distribution of the electric power network static demand is achieved, the positions of the base stations are designed through the electric power network static demand diagram, the distribution automation service demand under the extreme case is satisfied by adding a standby frequency pool, and the interference on the primary base station edge service by the secondary base station is reduced so as to realize the interference coordination.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO +3

Heterogeneous network interference coordinating method

The invention provides a heterogeneous network interference coordinating method. The heterogeneous network interference coordinating method comprises the following steps: a micro base station macro eNB informs load information through a load, informing current master control carrier configuration information of a cell or currently-available carrier resource information of a femto base station Pico eNB notified to the femto base station, wherein available carrier resources do not comprise a currently-configured master control carrier of the micro base station; and the femto base station configures the master control carrier and an auxiliary control carrier of the cell according to the configuration information or the available carrier resource information and according to a principle that the micro base station and the femto base station have different carrier configurations. By the heterogeneous network interference coordinating method, the Pico eNB and the macro eNB are ensured to use different carrier configurations and interference on Pico peripheral UE (user equipment) on a control channel can be minimized so as to coordinate the interference.
Owner:POTEVIO INFORMATION TECH

Heterogeneous wireless network uplink interference suppression method based on association control

ActiveCN103826314AImprove throughputReduce uplink cross-layer interferenceNetwork planningHome basedFemtocell
The invention discloses a heterogeneous wireless network uplink interference suppression method based on association control. The method mainly solves the problem about how to conduct association control on users so as to reduce cross-layer interference between macro cells and home cells and improve network performance when home base stations are opened and the users have access to the home base stations. The method includes the steps that mathematical description is conducted on the problem, and modeling is conducted on the problem to form an optimization problem with an objective function as the system throughput; due to the fact that the problem is an NP-Hard problem, the solution to the problem is divided into two parts, firstly, all the base stations perform sub-channel allocation so as to achieve interference coordination, and then a central controller performs access control on the users according to path gain information fed back by all the base stations so as to achieve interference transfer. Thus, the solution to the problem is obtained through a mode which can be implemented. Through interference coordination and interference transfer, finally the method reduces cross-layer interference of heterogeneous wireless network uplinks and improves the network throughput. The method can be applied to association control and interference suppression of the heterogeneous wireless network uplinks.
Owner:XIDIAN UNIV

Method and system for coordinating interference among communities

The invention discloses a method and a system for coordinating interference among communities; the method comprises the following steps that: a first community calculates the number of user equipment with the quality of service (QOS) not meeting a standard or the number of the user equipment with failing wireless link; and the relative narrowband TX power (RNTP) threshold of the first community and / or a second community which is adjacent to the first community is adjusted according to the number and a preset threshold of number. According to the invention, the interference among the communities can be coordinated according to the load changes of a network, so that the performance on the community edge is optimized.
Owner:ZTE CORP

Method, device and base station for selecting carrier

Embodiments of the present invention provide a method, device, and base station for selecting a carrier. The method includes: the first base station obtains carrier information of a cell under the second base station; and the first base station selects a carrier application according to the obtained carrier information. In the embodiment of the present invention, when base stations of various forms can support multiple carriers, it is possible to know the interference situation of adjacent cells on all carriers, reduce inter-cell interference to the greatest extent, and improve system capability. It avoids interference information that can only be coordinated between cells of the same frequency, and realizes interference coordination of all cells under all carriers.
Owner:HUAWEI TECH CO LTD

Method for coordinating interference

The invention discloses a method for coordinating interference, comprising the following steps: dividing time slot resources of adjacent three cells into three parts in advance, wherein all system available frequency resources on one part of time slot resources serve as special time frequency resources, all system available frequency resources on another part of the time slot resources serve as common time frequency resources, and all system available frequency resources on the rest part of the time slot resources serve as shared time frequency resources for the three cells; determining the special time frequency and the common time frequency resource for each cell according to the divided time slot resources; and distributing resources for cell edge users (CEU) and cell central users which request for dispatching respectively by using the above divided time frequency resources so as to lead the system to carry out flexible resource configuration according to the current position of the dispatched users, thus realizing interference coordination among cells which are suitable for a TDD mode system.
Owner:POTEVIO INFORMATION TECH CO LTD +1

Inter-cell interference coordination method and system

Disclosed are an inter-cell interference coordination method and system. The method includes: counting by a first cell the number of user devices whose QoS is substandard, or the number of user devices whose radio link has failed therein; and adjusting the RNTP threshold(s) of the first cell and / or a second cell adjacent thereto according to the number and a preset number threshold. The present invention can realize inter-cell interference coordination according to the variation in the network load, thus optimizing the performance of the cell edge.
Owner:ZTE CORP

Method for reducing long term evolution (LTE) radio communication system cell interference by using cognitive technology

The invention provides a method for reducing long term evolution (LTE) radio communication system cell interference by using a cognitive technology. The method comprises the following steps of: 1, setting a threshold value for dividing users in the cell into centre users and edge users; 2, configuring frequency resources for the users in the cell of the base station according to the preset initial frequency resource allocation rule by each base station; 3, judging the type of user equipment (UE) of the service which the newly added cell prepares for initiating according to a threshold value; 4, according to a judged result in 3, allocating frequency resources for the newly added UE according to a second preset frequency resource allocation rule by each base station; or allowing the newly added UE to independently select a usable spectrum for communication by using the cognitive technology; and 5, allocating power resources for the cell according to the UE type configured to each frequency resource. The technical scheme provided by the invention enables the frequency resources used in each cell to realize distribution according to needs and to dynamically change along with the change of the cell load. The cell resource is fully utilized, the interference coordination is effectively realized, and the spectrum utilization rate is improved.
Owner:BEIJING STARPOINT TECH COMPANY

Method and device for interference coordination between different types of base stations

The present invention relates to the mobile communication technology, and more particularly to a method and device for interference coordination between different types of base stations in Heterogeneous Networks. According to one aspect of the present invention, there may be provided a method for providing service to a User Equipment (UE) in a mobile communication network, and the method includes the following steps: A. a first type of base station determines to perform a coordination about the access of said UE with a second type base station, and sends a signaling to said UE, which comprises a coordination indication message and a dedicated preamble for accessing the second type of base station quickly; B. said UE receives said signaling and initiates a random access procedure to said second type of base station based on said dedicated preamble; D. after achieving the synchronization with said second type of base station, said UE forwards said coordination indication message to said second type of base station. With the application of the method and device in the present invention, the interference coordination between different types of base stations in Heterogeneous Networks can be implemented quickly.
Owner:ALCATEL LUCENT SHANGHAI BELL CO LTD

Heterogeneous network interference coordinating method

The invention provides a heterogeneous network interference coordinating method. The heterogeneous network interference coordinating method comprises the following steps: a micro base station macro eNB informs load information through a load, informing current master control carrier configuration information of a cell or currently-available carrier resource information of a femto base station Pico eNB notified to the femto base station, wherein available carrier resources do not comprise a currently-configured master control carrier of the micro base station; and the femto base station configures the master control carrier and an auxiliary control carrier of the cell according to the configuration information or the available carrier resource information and according to a principle that the micro base station and the femto base station have different carrier configurations. By the heterogeneous network interference coordinating method, the Pico eNB and the macro eNB are ensured to use different carrier configurations and interference on Pico peripheral UE (user equipment) on a control channel can be minimized so as to coordinate the interference.
Owner:POTEVIO INFORMATION TECH CO LTD

A data communication method, system and device

The embodiment of the invention discloses a data communication method, system and device, which are applied in the technical field of communication. The first base station where the serving cell of the user equipment is located will determine resource scheduling information for the user equipment to perform data communication in the serving cell, and send the resource scheduling information to a second base station where the coordinated cell of the user equipment is located. The base station, so that the second base station prohibits other user equipment from occupying the resource corresponding to the resource scheduling information; receiving the information that the scheduling is not allowed returned by the second base station, the first base station will send an uplink authorization to the user equipment, allowing the user equipment in the serving cell Data communication is performed on the resources corresponding to the above resource scheduling information. In this way, resource occupation conflicts of user equipments among base stations can be avoided, interference coordination of each cell can be realized, and interference of data communication of user equipments in a coordinated cell to data communication of user equipments in this cell can be avoided.
Owner:HUAWEI TECH CO LTD

Method and device for coordinating interference among cells

The present invention provides an inter-cell interference coordination method and device and a computer storage medium. The method comprises: determining that a cell supports a trunking service; and sending an RBG activation bitmap of the cell to a neighboring cell of the cell through a base station to which the cell belongs, so that an LTE cell in the neighboring cell of the cell performs resource allocation according to the RBG activation bitmap and reference signal receive power (RSRP) information that is reported by a terminal in the LTE cell, so as to avoid inter-cell interference.
Owner:ZTE CORP

Interference Coordination Method Based on Femtocell Clustering and Macro User Scheduling in Heterogeneous Networks

The invention discloses an interference coordination method based on femtocell clustering and macro user scheduling in a heterogeneous network. By adopting the interference coordination of femtocell clustering and macro user scheduling in the heterogeneous network, the femtocell perceives whether there are macro users around, and in each A femtocell interference cluster is formed around the macro user, and the interference cluster corresponding to the macro user requesting to access the network reports feedback information to the macro base station through the feedback link, and the macro cell selects a group of K candidate macro users for scheduling according to the feedback information, and the macro cell According to the channel information of the macro users in the current time slot, K-1 macro users are selected to transmit data, and the interference cluster corresponding to the remaining macro users is notified to communicate normally in the time slot, and the macro user scheduling is repeated until the entire scheduling is completed. The invention not only ensures the coverage of the macrocell, but also can realize more efficient frequency spectrum and power utilization compared with the prior art.
Owner:XIDIAN UNIV

Interference coordination method in 5G communication room subsystem based on Xn interface

The invention discloses a method for coordinating interference in a 5G communication indoor subsystem based on an Xn interface, which belongs to the technical field of communication, and comprises the following steps: enabling a plurality of base band units (BBUs) to interact through the Xn interface, and increasing the message content of the Xn interface: the number of cells contained in the BBUs, and the initial position and distribution direction of edge resources of each cell, after each cell obtains the edge resource information of the interference cell between the base band units (BBU) in the system, the edge resource selection of the cell is adjusted, the purpose of interference coordination is achieved, for the condition that the load of multiple users is large, compared with the prior art, resource allocation can be better achieved by dynamically adjusting the direction of the center resource or the edge resource, and the resource allocation efficiency is improved. And for the no-load condition with few users, the purpose of interference coordination can be achieved, and the utilization rate of center and edge resources can be improved.
Owner:深圳市佳贤通信科技股份有限公司

Uplink Interference Suppression Method for Heterogeneous Wireless Networks Based on Association Control

ActiveCN103826314BImprove throughputReduce uplink cross-layer interferenceNetwork planningAssociation controlHome based
The invention discloses a heterogeneous wireless network uplink interference suppression method based on association control. The method mainly solves the problem about how to conduct association control on users so as to reduce cross-layer interference between macro cells and home cells and improve network performance when home base stations are opened and the users have access to the home base stations. The method includes the steps that mathematical description is conducted on the problem, and modeling is conducted on the problem to form an optimization problem with an objective function as the system throughput; due to the fact that the problem is an NP-Hard problem, the solution to the problem is divided into two parts, firstly, all the base stations perform sub-channel allocation so as to achieve interference coordination, and then a central controller performs access control on the users according to path gain information fed back by all the base stations so as to achieve interference transfer. Thus, the solution to the problem is obtained through a mode which can be implemented. Through interference coordination and interference transfer, finally the method reduces cross-layer interference of heterogeneous wireless network uplinks and improves the network throughput. The method can be applied to association control and interference suppression of the heterogeneous wireless network uplinks.
Owner:XIDIAN UNIV
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