WO2012103760A1 - Admission control method based on comp and base station - Google Patents

Admission control method based on comp and base station Download PDF

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Publication number
WO2012103760A1
WO2012103760A1 PCT/CN2011/082010 CN2011082010W WO2012103760A1 WO 2012103760 A1 WO2012103760 A1 WO 2012103760A1 CN 2011082010 W CN2011082010 W CN 2011082010W WO 2012103760 A1 WO2012103760 A1 WO 2012103760A1
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WIPO (PCT)
Prior art keywords
comp
cells
cell
measurement
request
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PCT/CN2011/082010
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French (fr)
Chinese (zh)
Inventor
王学强
李磊
陈晔
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中兴通讯股份有限公司
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Publication of WO2012103760A1 publication Critical patent/WO2012103760A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity
    • H04B7/024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/02Access restriction performed under specific conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • H04W28/086Load balancing or load distribution among access entities
    • H04W28/0861Load balancing or load distribution among access entities between base stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels

Definitions

  • the invention relates to a coordinated multi-point transmission/reception technology (CoMP, Coordinated Multi-point transmission/reception) in a wireless communication system, and a long-term evolution upgrade (LTE-A, Long Term Evolution- Advanced) CoMP-based admission control method and base station in the system.
  • CoMP Coordinated Multi-point transmission/reception
  • LTE-A Long Term Evolution- Advanced
  • LTE-A is designated as an important element in its technical framework. It refers to a plurality of geographically separated transmission points cooperatively participating in a user equipment (UE) transmitting and/or receiving data to improve the quality of signals received by edge user equipment.
  • UE user equipment
  • CoMP's transmit and receive technologies can be used to increase the coverage of high-speed data rates, thereby increasing throughput at the edge of the cell or increasing system throughput.
  • the technical problem to be solved by the present invention is to provide a CoMP bearer admission control method and a CoMP-based base station to solve the problem of a bearer admission control scheme that does not have an effective CoMP technology.
  • the present invention provides a CoMP-based admission control method.
  • a user equipment UE
  • the CoMP cell initially accessed by the UE performs the following operations:
  • the resource status report reported by the other CoMP cells in the set includes:
  • the resource status report is reported by the CoMP cell according to a default setting or according to a request of the CoMP cell initially accessed by the UE.
  • the obtaining the measurement report of all the CoMP cells in the set reported by the UE includes: the UE periodically reporting the measurement report according to a default setting or according to a request of the CoMP cell initially accessed by the UE.
  • the measurement report includes a signal quality, a precoding matrix index (PMI), a channel quality indicator (CQI), or a rank indication (RI), where the initial access CoMP cell is based on the CoMP cell and other CoMP cells in the set. Resource status reporting, signal quality, PMI, CQI, or RI are used to rank power.
  • PMI precoding matrix index
  • CQI channel quality indicator
  • RI rank indication
  • the present invention also provides a CoMP cell base station, where the base station includes:
  • a resource status report obtaining module configured to obtain a resource status report reported by another CoMP cell in the set
  • a measurement report obtaining module configured to acquire a measurement report of all CoMP cells in the set reported by the UE initially accessed by the current base station;
  • a CoMP cell screening module configured to perform weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the CoMP set, and filter N CoMP cells according to the weighted queuing result;
  • the bearer admission control module is configured to determine whether the total resources of the selected N cells can meet the service requirements that the UE requests to establish, and if yes, the bearer is accepted and established, otherwise the service access is denied.
  • the resource status report obtained by the resource status report obtaining module is periodically reported by the in-set CoMP cell according to the default setting.
  • the measurement report obtained by the measurement report obtaining module is reported by the UE according to a default setting.
  • the resource status report acquiring module acquires the resource status report, and sends a resource status report request to other CoMP cells in the set and a resource status report periodically sent by other CoMP cells in the set; the measurement report obtaining module acquires the
  • the measurement report includes transmitting a measurement control request to the UE, and receiving a measurement report sent by the UE.
  • the measurement report includes a signal quality, a precoding matrix index (PMI), a channel quality indicator (CQI), or a rank indication (RI), where the initial access CoMP cell is based on the CoMP cell and other CoMP cells in the set. Resource status reporting, signal quality, PMI, CQI, or RI are used to rank power.
  • PMI precoding matrix index
  • CQI channel quality indicator
  • RI rank indication
  • An admission control method based on the multi-point cooperative transmission and reception technology CoMP when the user equipment UE requests an access service, the CoMP cell initially accessed by the UE performs the following operations:
  • All CoMP cells in the set are weighted and queued according to resource status reports and measurement reports of all cells in the set, and N CoMP cells are filtered according to the weighted queuing results;
  • the step of obtaining the resource status report reported by the other CoMP cells in the set includes: the other CoMP cells in the set periodically report the resource status report according to the default setting or according to the request of the CoMP cell initially accessed by the UE.
  • the step of periodically reporting the resource status report by the other CoMP cells in the set according to the request of the CoMP cell initially accessed by the UE includes:
  • the CoMP cell initially accessed by the UE sends a resource measurement request to other cells in the set; the other cells in the set report the current cell resource load according to the time period required in the resource measurement request of the primary cell.
  • the step of obtaining a measurement report of all CoMP cells in the set reported by the UE includes:
  • the UE according to a default setting or according to a request week of a CoMP cell initially accessed by the UE The measurement report is reported.
  • the step of periodically reporting the measurement report by the request of the CoMP cell initially accessed by the UE includes:
  • the CoMP cell initially accessed by the UE sends a measurement control request to the UE, and the UE is required to obtain a measurement report of all cells in the set;
  • the UE reports a measurement report of all cells in the set according to the measurement control request.
  • the measurement report includes a signal quality, a precoding matrix index PMI, a channel quality indicator CQI, or a rank indicator RI.
  • a multi-point coordinated transmission and reception technology CoMP cell base station includes: a resource status report acquisition module, a measurement report acquisition module, a CoMP cell screening module, and a bearer admission control module, where:
  • the resource status report obtaining module is configured to: obtain a resource status report reported by another CoMP cell in the set of the CoMP cell that the UE initially accesses;
  • the measurement report obtaining module is configured to: obtain a measurement report of all CoMP cells in the set reported by the UE;
  • the CoMP cell screening module is configured to: perform weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the set, and filter N CoMP cells according to the weighted queuing result;
  • the bearer admission control module is configured to: determine whether the total resources of the selected N CoMP cells can meet the service requirements that the UE requests to establish, and if yes, accept and establish a bearer; otherwise, the service access is denied.
  • the resource status report is periodically reported by other CoMP cells in the set according to a default setting or according to a request of a CoMP cell initially accessed by the UE;
  • the measurement report is periodically performed by the UE according to a default setting or according to a request of a CoMP cell initially accessed by the UE.
  • the resource status report obtaining module is configured to obtain the resource status report in the following manner:
  • the CoMP cell initially accessed by the UE sends a resource status report request to other CoMP cells in the set;
  • the measurement report obtaining module is configured to acquire the measurement report according to the following manner: the CoMP cell initially accessed by the UE sends a measurement control request to the UE, and the UE is required to obtain a measurement report of all cells in the set; as well as,
  • the UE reports a measurement report of all cells in the set according to the measurement control request.
  • the measurement report includes a signal quality, a precoding matrix index PMI, a channel quality indicator CQI, or a rank indicator RI.
  • the primary CoMP cell may perform weighted queuing and screening on all cells in the CoMP set according to the resource condition reported by the secondary CoMP cell and the measurement report of all cells in the CoMP set reported by the UE, so as to select the total resources of the selected cell according to the filtered To determine whether the UE service access is satisfied.
  • Such judgment and selection can enable the system to establish the bearer on the most suitable cell according to the relevant information measured by the UE, and at the same time, balance the load in each cell at the beginning of establishing the bearer, and realize load balancing.
  • FIG. 1 is a schematic diagram of a CoMP-based admission control method according to an embodiment of the present invention
  • FIG. 2 is a signaling flowchart of establishing a successful reception based on CoMP technology in an LTE-A system according to an embodiment of the present invention
  • FIG. 3 is a flowchart of processing signaling of a UE measurement report timeout according to an embodiment of the present invention
  • FIG. 4 is a flow chart of signaling failure of the total resource in the CoMP set filtered by the embodiment of the present invention. Preferred embodiment of the invention
  • the CoMP technology can be used to simultaneously serve multiple cells for the same UE.
  • the embodiment of the present invention provides a method for determining the load of each cell in the CoMP set. Whether it can accept business, that is, the method of carrying acceptance control.
  • FIG. 1 is a schematic diagram of a CoMP-based admission control method according to an embodiment of the present invention.
  • the CoMP cell initially accessed by the UE also referred to as the primary CoMP cell or the primary cell, performs the following operations:
  • Step 101 Obtain a resource status report reported by another CoMP cell in the set; the in-set CoMP cell may report the resource status report according to a system default setting or periodically according to a request of the primary CoMP cell.
  • the CoMP cell set in the embodiment of the present invention may be statically set in advance or dynamically set according to a specific measurement result.
  • the adjacent cells may be classified as a Comp zone set, or may be divided according to the neighbor set actually measured by the UE.
  • Step 102 Obtain a measurement report of all CoMP cells in the set reported by the UE.
  • the UE may report to the primary CoMP cell according to the system default setting or the request of the primary CoMP cell.
  • the measurement report includes a signal quality, a Precoding Matrix Indicator (PMI), a Channel Quality Indication (CQI), or a Rank Indication (RI).
  • PMI Precoding Matrix Indicator
  • CQI Channel Quality Indication
  • RI Rank Indication
  • Step 103 Perform weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the CoMP set, and filter N CoMP cells according to the weighted queuing result; where the primary CoMP cell is based on the CoMP cell and other in the set Resource status of the CoMP community State reports, signal quality, PMI, CQI, or RI are weighted, such as 40% of the resource state, 30% of the signal quality, and 10% each.
  • the number of the selected CoMP cells is related to the system configuration filtering policy.
  • the screening policy may be based on the system configuration or the subscription information of the UE user, but the N cannot be greater than the maximum number of bearers that the UE can support.
  • the subscription information of the UE is configured on the core network.
  • the core network may notify the primary CoMP cell through E-RAB signaling when the user accesses.
  • Step 104 Determine whether the total resources of the selected N cells can meet the service requirements that the UE requests to establish, and if yes, accept and establish a bearer, otherwise reject the service access.
  • the method of the embodiment of the present invention can be applied to a UE located at a cell center, and can also be applied to a UE at a cell edge, and when the UE is located at a cell edge, the admission control effect is more obvious.
  • the UE initiates an access request, it carries relevant information so that it can be displayed whether it is at the cell edge.
  • the primary CoMP cell sends a periodic resource measurement control to the secondary CoMP cell, and the secondary CoMP cell periodically reports the resource measurement report according to the periodic time in the measurement control.
  • the eNodeB sends the information about the CoMP set to the UE. Measurement control (signal quality, PMI, RI, CQI, etc.) of all cells, after the UE reports the measurement report.
  • the eNodeB performs weighted queuing (resource, signal quality, PMI, RI, CQI, etc.) on all cells in the CoMP set, and filters the eligible TOP (n) cells according to the maximum number of bearers (n) that the UE can accept. At this time, it is determined whether the sum of the resources of the selected cells meets the resources for establishing a service, and if the service is accepted and the bearer is established on all the cells, the service access is rejected.
  • CoMP-based admission control enables users at the cell edge to use network resources through CoMP technology, and each cell in the CoMP set achieves load balancing.
  • Step 201 The primary cell sends a resource measurement request to other cells in the CoMP set.
  • the measurement request is sent only once, and the cell reporting resource status information, reporting period, and the like are carried.
  • Step 202 The other cells in the CoMP set report the current cell resource load status according to the time period required in the resource measurement request of the primary cell.
  • Step 203 The core network sends an evolved radio access bearer (E-RAB, EVOLVED) to the primary cell.
  • E-RAB evolved radio access bearer
  • Step 204 The primary cell sends a measurement control request to the UE, and requests the UE to measure signal quality, PMI, CQI, and RI of all cells in the current CoMP set.
  • Step 205 The UE reports the signal quality, PMI, RI, CQI, etc. of the measured cell in the CoMP set according to the measurement control request.
  • Step 206 Perform weighting processing according to related information of cells in the CoMP set reported by the UE, and queue all uncongested cells.
  • Step 207 Filter the weighted cells according to the maximum number of bearers that the UE can receive, and select a corresponding TOP cell.
  • Step 208 Determine whether the service access is satisfied according to the sum of the existing resources of the selected TOP cell.
  • Step 209 The total cell resource sum of the TOP satisfies the user access, and the primary cell sends an E-RAB admission success response to the core network.
  • the UE when the UE requests access to one or more services, the UE measures the processing flow when the UE times out, as shown in FIG. 3, the processing flow includes:
  • Step 301 The primary cell sends a resource measurement request to other cells in the CoMP set.
  • the measurement request is sent only once, and the resource reporting information of the cell is reported, and the reporting period is performed.
  • Step 302 The other cells in the set report the current cell resource load according to the time period required in the resource measurement request of the primary cell.
  • Step 303 The E-RAB admission request sent by the core network to the primary cell.
  • Step 304 The primary cell sends a measurement control request to the UE, and requests the UE to measure signal quality, CQI, PML RI, and the like of all cells in the current CoMP set.
  • Step 305 The UE does not receive the measurement result of the UE within the timeout period configured by the system, and the primary cell sends an E-RAB admission failure response to the core network.
  • the admission control process when the remaining small cells in the CoMp set are insufficient is filtered, as shown in FIG. 4:
  • Step 401 The primary cell sends a resource measurement request to other cells in the CoMP set.
  • Step 402 The other cells in the set report the current cell resource load according to the time period required in the resource measurement request of the primary cell.
  • Step 403 The E-RAB admission request sent by the core network to the primary cell.
  • Step 404 The primary cell sends a measurement control request to the UE, requesting the UE to measure the signal quality, CQI, PML RI, etc. of all cells in the current CoMP set;
  • Step 405 The UE reports the measured signal quality, PML RI, CQI, and the like of the CoMP set cell according to the measurement control request.
  • Step 406 Perform weighting processing according to related information of cells in the CoMP set reported by the UE, and queue all uncongested cells.
  • Step 407 Filter the weighted cells according to the maximum number of bearers that the UE can receive, and select a corresponding TOP cell.
  • Step 408 Determine whether the service access is satisfied according to the sum of the existing resources of the selected TOP cell.
  • Step 409 The sum of all the cell resources of the TOP does not satisfy the user access, and the primary cell sends an E-RAB admission failure response to the core network.
  • an embodiment of the present invention further provides a CoMP cell base station, where the base station
  • the method includes: a resource status report obtaining module, a measurement report obtaining module, a CoMP cell screening module, and a bearer admission control module, where:
  • the resource status report obtaining module is configured to: obtain a resource status report reported by other CoMP cells in the set;
  • the measurement report obtaining module is configured to: obtain a measurement report of all CoMP cells in the set reported by the UE initially accessed by the current base station;
  • the CoMP cell screening module is configured to: perform weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the CoMP set, and filter N CoMP cells according to the weighted queuing result;
  • the bearer admission control module is configured to: determine whether the total resources of the selected N cells can meet the service requirements that the UE requests to establish, and if yes, accept and establish a bearer, otherwise reject the service access.
  • the resource status report obtained by the resource status report obtaining module is periodically reported by the in-set CoMP cell according to the default setting.
  • the measurement report obtained by the measurement report obtaining module is reported by the UE according to the default setting.
  • the resource status report acquiring module acquires the resource status report, and sends a resource status report request to other CoMP cells in the set and a resource status report periodically sent by other CoMP cells in the set; the measurement report obtaining module acquires the The measurement report includes transmitting a measurement control request to the UE, and receiving a measurement report sent by the UE.
  • the measurement report includes a signal quality, a PMI, a CQI, or an RI
  • the initial access CoMP cell performs weighted ordering according to a resource status report, a signal quality, a PML CQI, or an RI of the CoMP cell and other CoMP cells in the set.
  • the base station mentioned above includes an evolved Node B (ENB, eNodeB) in the LTE-A system.
  • the primary CoMP cell may perform weighted queuing and screening on all cells in the CoMP set according to the resource condition periodically reported by the secondary CoMP cell and the signal quality, PMI, RI, and CQI of all cells in the CoMP set reported by the UE. . Therefore, it is determined whether the UE service access is satisfied according to the total resources of the filtered cell. Such judgment and selection can enable the system to establish the bearer on the most suitable cell according to the related information measured by the UE, and at the same time, balance the load in each cell at the beginning of establishing the bearer, and achieve load balancing.
  • the primary CoMP cell may perform weighted queuing and screening on all cells in the CoMP set according to the resource condition reported by the secondary CoMP cell and the measurement report of all cells in the CoMP set reported by the UE, so as to select the total resources of the selected cell according to the filtered To determine whether the UE service access is satisfied.
  • Such judgment and selection can enable the system to establish the bearer on the most suitable cell according to the relevant information measured by the UE, and at the same time, balance the load in each cell at the beginning of establishing the bearer, and realize load balancing. Therefore, the present invention has strong industrial applicability.

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Abstract

An admission control method based on a coordinated multi-point transmission/reception technology and a CoMP cell base station. The method comprises: when a user equipment (UE) requests access to a service, a CoMP cell initially accessed by the UE performing the following operations: acquiring resource status reports reported by other CoMP cells in a set where the CoMP cell initially accessed by the UE resides; acquiring measurement reports that are of all the CoMP cells in the set and reported by the UE; performing weighted queuing on all the CoMP cells in the set according to resource status reports and the measurement reports of all the cells in the set, and filtering out N CoMP cells according to a result of weighted queuing; and determining whether total resources of the N filtered out CoMP cells can satisfy demands of a service that the UE requests to establish, and if yes, admitting the access and establishing a bearer; otherwise, denying the access to the service. With the technical solution, the system is enabled to establish the bearer on the most suitable cell according to relevant information measured by the UE, and meanwhile balance the load among the cells at the beginning of establishing the bearer so as to achieve load balancing.

Description

基于 CoMP的接纳控制方法和基站  CoMP-based admission control method and base station
技术领域 Technical field
本发明涉及无线通信***中的多点协作传输及接收技术 ( CoMP , Coordinated Multi-point transmission/reception )接^)控帝 J技术, 特另 ll是长期演 进升级(LTE-A, Long Term Evolution- Advanced ) ***中基于 CoMP的接纳 控制方法和基站。  The invention relates to a coordinated multi-point transmission/reception technology (CoMP, Coordinated Multi-point transmission/reception) in a wireless communication system, and a long-term evolution upgrade (LTE-A, Long Term Evolution- Advanced) CoMP-based admission control method and base station in the system.
背景技术 Background technique
CoMP是为了进一步满足 LTE***对于边缘用户吞吐量、边缘用户频率利 用率以及***整体性能而提出的,作为 LTE***的后继者 LTE-A指定为其技 术框架中重要的元素。 是指地理位置上分离的多个传输点协同参与一个用户 设备(UE )传输和 /接受数据, 以提高边缘用户设备接收信号的质量。 ***中 可以通过 CoMP的发送和接收技术来增加高速数据速率的覆盖, 从而提高小 区边缘的吞吐量或增加***吞吐量。  CoMP is proposed to further satisfy the LTE system for edge user throughput, edge user frequency utilization and overall system performance. As the successor of LTE system, LTE-A is designated as an important element in its technical framework. It refers to a plurality of geographically separated transmission points cooperatively participating in a user equipment (UE) transmitting and/or receiving data to improve the quality of signals received by edge user equipment. CoMP's transmit and receive technologies can be used to increase the coverage of high-speed data rates, thereby increasing throughput at the edge of the cell or increasing system throughput.
LTE***中, 同一时间只有一个小区为某个 UE服务,在 LTE-A***中, 釆用 CoMP技术可以实现多个小区为一个 UE服务, 但现有技术中, 尚没有 一个有效的利用 CoMP技术的承载接纳控制解决方案。 发明内容  In the LTE system, only one cell serves a certain UE at the same time. In the LTE-A system, multiple cells can be used to serve one UE in the LTE-A system. However, in the prior art, there is no effective use of CoMP technology. Bearer admission control solution. Summary of the invention
本发明要解决的技术问题是提供一种基于 CoMP承载接纳控制方法和基 于 CoMP的基站, 以解决尚没有有效的利用 CoMP技术的承载接纳控制方案 的问题。  The technical problem to be solved by the present invention is to provide a CoMP bearer admission control method and a CoMP-based base station to solve the problem of a bearer admission control scheme that does not have an effective CoMP technology.
为解决以上技术问题, 本发明提供了一种基于 CoMP的接纳控制方法, 用户设备 (UE)请求接入业务时, 所述 UE初始接入的 CoMP小区执行以下操 作:  To solve the above technical problem, the present invention provides a CoMP-based admission control method. When a user equipment (UE) requests an access service, the CoMP cell initially accessed by the UE performs the following operations:
获取所在集内的其他 CoMP小区上报的资源状态报告;  Obtain a resource status report reported by other CoMP cells in the set;
获取所述 UE上报的集内所有 CoMP小区的测量报告; 根据 CoMP集内所有小区的资源状态报告和测量报告对集内所有 CoMP 小区进行加权排队, 并根据加权排队结果筛选 N个 CoMP小区; Obtaining a measurement report of all CoMP cells in the set reported by the UE; Performing weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the CoMP set, and screening N CoMP cells according to the weighted queuing result;
判断筛选出的 N个小区总资源是否能满足所述 UE请求建立的业务需求, 如能满足则接纳并建立承载, 否则拒绝该业务接入。  It is determined whether the total resources of the selected N cells can meet the service requirements that the UE requests to establish, and if yes, the bearer is accepted and established, otherwise the service access is denied.
其中, 获取所在集内的其他 CoMP小区上报的资源状态报告包括: 集内 The resource status report reported by the other CoMP cells in the set includes:
CoMP小区根据默认设置或根据所述 UE初始接入的 CoMP小区的请求周期 性上报所述资源状态报告。 The resource status report is reported by the CoMP cell according to a default setting or according to a request of the CoMP cell initially accessed by the UE.
其中, 获取所述 UE上报的集内所有 CoMP小区的测量报告包括: 所述 UE根据默认设置或根据所述 UE初始接入的 CoMP小区的请求周期性上报所 述测量报告。  The obtaining the measurement report of all the CoMP cells in the set reported by the UE includes: the UE periodically reporting the measurement report according to a default setting or according to a request of the CoMP cell initially accessed by the UE.
其中, 所述测量报告包括信号质量、 预编码矩阵索引 (PMI ) 、 信道质 量指示符(CQI )或秩指示 (RI ) , 所述初始接入 CoMP小区根据该 CoMP 小区和集内其他 CoMP小区的资源状态报告、 信号质量、 PMI、 CQI或 RI进 行力口权排序。  The measurement report includes a signal quality, a precoding matrix index (PMI), a channel quality indicator (CQI), or a rank indication (RI), where the initial access CoMP cell is based on the CoMP cell and other CoMP cells in the set. Resource status reporting, signal quality, PMI, CQI, or RI are used to rank power.
为解决以上技术问题, 本发明还提供了一种 CoMP小区基站, 该基站包 括:  To solve the above technical problem, the present invention also provides a CoMP cell base station, where the base station includes:
资源状态报告获取模块, 用于获取所在集内的其他 CoMP小区上报的资 源状态报告;  a resource status report obtaining module, configured to obtain a resource status report reported by another CoMP cell in the set;
测量报告获取模块, 用于获取在当前基站初始接入的 UE上报的集内所 有 CoMP小区的测量报告;  a measurement report obtaining module, configured to acquire a measurement report of all CoMP cells in the set reported by the UE initially accessed by the current base station;
CoMP小区筛选模块, 用于根据 CoMP集内所有小区的资源状态报告和 测量报告对集内所有 CoMP小区进行加权排队, 并根据加权排队结果筛选 N 个 CoMP小区;  a CoMP cell screening module, configured to perform weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the CoMP set, and filter N CoMP cells according to the weighted queuing result;
承载接纳控制模块, 用于判断筛选出的 N个小区总资源是否能满足所述 UE请求建立的业务需求,如能满足则接纳并建立承载,否则拒绝该业务接入。  The bearer admission control module is configured to determine whether the total resources of the selected N cells can meet the service requirements that the UE requests to establish, and if yes, the bearer is accepted and established, otherwise the service access is denied.
其中, 所述资源状态报告获取模块获取的资源状态报告是集内 CoMP小 区根据默认设置周期性上报的; 所述测量报告获取模块获取的测量报告是所 述 UE根据默认设置上报的。 其中, 所述资源状态报告获取模块获取所述资源状态报告包括向集内其 他 CoMP小区发送资源状态报告请求以及接收集内其他 CoMP小区周期性发 送的资源状态报告;所述测量报告获取模块获取所述测量报告包括向所述 UE 发送测量控制请求, 以及接收所述 UE发送的测量报告。 The resource status report obtained by the resource status report obtaining module is periodically reported by the in-set CoMP cell according to the default setting. The measurement report obtained by the measurement report obtaining module is reported by the UE according to a default setting. The resource status report acquiring module acquires the resource status report, and sends a resource status report request to other CoMP cells in the set and a resource status report periodically sent by other CoMP cells in the set; the measurement report obtaining module acquires the The measurement report includes transmitting a measurement control request to the UE, and receiving a measurement report sent by the UE.
其中, 所述测量报告包括信号质量、 预编码矩阵索引 (PMI ) 、 信道质 量指示符(CQI )或秩指示 (RI ) , 所述初始接入 CoMP小区根据该 CoMP 小区和集内其他 CoMP小区的资源状态报告、 信号质量、 PMI、 CQI或 RI进 行力口权排序。  The measurement report includes a signal quality, a precoding matrix index (PMI), a channel quality indicator (CQI), or a rank indication (RI), where the initial access CoMP cell is based on the CoMP cell and other CoMP cells in the set. Resource status reporting, signal quality, PMI, CQI, or RI are used to rank power.
一种基于多点协作传输及接收技术 CoMP的接纳控制方法,用户设备 UE 请求接入业务时, 所述 UE初始接入的 CoMP小区执行以下操作:  An admission control method based on the multi-point cooperative transmission and reception technology CoMP, when the user equipment UE requests an access service, the CoMP cell initially accessed by the UE performs the following operations:
获取所在集内的其他 CoMP小区上报的资源状态报告;  Obtain a resource status report reported by other CoMP cells in the set;
获取所述 UE上报的所述集内所有 CoMP小区的测量报告;  Obtaining a measurement report of all CoMP cells in the set reported by the UE;
根据所述集内所有小区的资源状态报告和测量报告对集内所有 CoMP小 区进行加权排队, 并根据加权排队结果筛选 N个 CoMP小区;  All CoMP cells in the set are weighted and queued according to resource status reports and measurement reports of all cells in the set, and N CoMP cells are filtered according to the weighted queuing results;
判断筛选出的 N个 CoMP小区总资源是否能满足所述 UE请求建立的业 务需求, 如能满足则接纳并建立承载, 否则拒绝业务接入。  It is determined whether the total resources of the selected N CoMP cells can meet the service requirements that the UE requests to establish, and if yes, the bearer is accepted and established, otherwise the service access is denied.
其中:获取所在集内的其他 CoMP小区上报的资源状态报告的步骤包括: 集内的其他 CoMP小区根据默认设置或根据所述 UE初始接入的 CoMP 小区的请求周期性上报所述资源状态报告。  The step of obtaining the resource status report reported by the other CoMP cells in the set includes: the other CoMP cells in the set periodically report the resource status report according to the default setting or according to the request of the CoMP cell initially accessed by the UE.
其中: 集内的其他 CoMP小区根据所述 UE初始接入的 CoMP小区的请 求周期性上报所述资源状态报告的步骤包括:  The step of periodically reporting the resource status report by the other CoMP cells in the set according to the request of the CoMP cell initially accessed by the UE includes:
所述 UE初始接入的 CoMP小区向所述集内其他小区发送资源测量请求; 所述集内其他小区根据主小区的资源测量请求中要求的时间周期上报当 前的小区资源负载情况。  The CoMP cell initially accessed by the UE sends a resource measurement request to other cells in the set; the other cells in the set report the current cell resource load according to the time period required in the resource measurement request of the primary cell.
其中: 获取所述 UE上报的所述集内所有 CoMP小区的测量报告的步骤 包括:  The step of obtaining a measurement report of all CoMP cells in the set reported by the UE includes:
所述 UE根据默认设置或根据所述 UE初始接入的 CoMP小区的请求周 期性上报所述测量报告。 The UE according to a default setting or according to a request week of a CoMP cell initially accessed by the UE The measurement report is reported.
其中: 所述 UE初始接入的 CoMP小区的请求周期性上报所述测量报告 的步骤包括:  The step of periodically reporting the measurement report by the request of the CoMP cell initially accessed by the UE includes:
所述 UE初始接入的 CoMP小区向所述 UE发送测量控制请求, 要求所 述 UE获得所述集内所有小区的测量报告;  The CoMP cell initially accessed by the UE sends a measurement control request to the UE, and the UE is required to obtain a measurement report of all cells in the set;
所述 UE根据所述测量控制请求上报所述集内所有小区的测量报告。 其中: 所述测量报告包括信号质量、 预编码矩阵索引 PMI、 信道质量指 示符 CQI或秩指示 RI。  The UE reports a measurement report of all cells in the set according to the measurement control request. Wherein: the measurement report includes a signal quality, a precoding matrix index PMI, a channel quality indicator CQI, or a rank indicator RI.
一种多点协作传输及接收技术 CoMP小区基站, 该基站包括: 资源状态 报告获取模块、 测量报告获取模块、 CoMP 小区筛选模块及承载接纳控制模 块, 其中:  A multi-point coordinated transmission and reception technology CoMP cell base station, the base station includes: a resource status report acquisition module, a measurement report acquisition module, a CoMP cell screening module, and a bearer admission control module, where:
所述资源状态报告获取模块设置成: 获取 UE初始接入的 CoMP小区所 在集内的其他 CoMP小区上报的资源状态报告;  The resource status report obtaining module is configured to: obtain a resource status report reported by another CoMP cell in the set of the CoMP cell that the UE initially accesses;
所述测量报告获取模块设置成:获取所述 UE上报的所述集内所有 CoMP 小区的测量报告;  The measurement report obtaining module is configured to: obtain a measurement report of all CoMP cells in the set reported by the UE;
所述 CoMP小区筛选模块设置成: 根据所述集内所有小区的资源状态报 告和测量报告对集内所有 CoMP小区进行加权排队, 并根据加权排队结果筛 选 N个 CoMP小区;  The CoMP cell screening module is configured to: perform weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the set, and filter N CoMP cells according to the weighted queuing result;
所述承载接纳控制模块设置成: 判断筛选出的 N个 CoMP小区总资源是 否能满足所述 UE请求建立的业务需求, 如能满足则接纳并建立承载, 否则 拒绝业务接入。  The bearer admission control module is configured to: determine whether the total resources of the selected N CoMP cells can meet the service requirements that the UE requests to establish, and if yes, accept and establish a bearer; otherwise, the service access is denied.
其中: 所述资源状态报告是所述集内的其他 CoMP小区根据默认设置或 根据所述 UE初始接入的 CoMP小区的请求周期性上报的;  The resource status report is periodically reported by other CoMP cells in the set according to a default setting or according to a request of a CoMP cell initially accessed by the UE;
所述测量报告是所述 UE根据默认设置或根据所述 UE初始接入的 CoMP 小区的请求周期性上 的。  The measurement report is periodically performed by the UE according to a default setting or according to a request of a CoMP cell initially accessed by the UE.
其中: 所述资源状态报告获取模块设置成按照以下方式获取所述资源状态报 告: among them: The resource status report obtaining module is configured to obtain the resource status report in the following manner:
所述 UE初始接入的 CoMP小区向集内其他 CoMP小区发送资源状态报 告请求; 以及,  The CoMP cell initially accessed by the UE sends a resource status report request to other CoMP cells in the set; and,
接收所述集内其他 CoMP小区根据主小区的资源测量请求中要求的时间 周期性上报当前的小区资源负载情况;  Receiving, by the other CoMP cells in the set, the current cell resource load situation is periodically reported according to the time required in the resource measurement request of the primary cell;
所述测量报告获取模块设置成按照以下方式获取所述测量报告: 所述 UE初始接入的 CoMP小区向所述 UE发送测量控制请求, 要求所 述 UE获得所述集内所有小区的测量报告; 以及,  The measurement report obtaining module is configured to acquire the measurement report according to the following manner: the CoMP cell initially accessed by the UE sends a measurement control request to the UE, and the UE is required to obtain a measurement report of all cells in the set; as well as,
所述 UE根据所述测量控制请求上报所述集内所有小区的测量报告。 其中: 所述测量报告包括信号质量、 预编码矩阵索引 PMI、 信道质量指 示符 CQI或秩指示 RI。  The UE reports a measurement report of all cells in the set according to the measurement control request. Wherein: the measurement report includes a signal quality, a precoding matrix index PMI, a channel quality indicator CQI, or a rank indicator RI.
上述技术方案中, 主 CoMP小区可以根据辅 CoMP小区上报的资源情况 及 UE上报的 CoMP集内所有小区的测量报告, 对 CoMP集内所有小区进行 加权排队并筛选, 从而根据筛选后小区的总资源来判断是否满足 UE业务接 入。 这样的判断和选择可以使***根据 UE测量到的相关信息将承载建立在 最合适的小区上, 同时在建立承载之初就将负荷均衡在各小区中, 实现了负 荷均衡。 附图概述 In the foregoing technical solution, the primary CoMP cell may perform weighted queuing and screening on all cells in the CoMP set according to the resource condition reported by the secondary CoMP cell and the measurement report of all cells in the CoMP set reported by the UE, so as to select the total resources of the selected cell according to the filtered To determine whether the UE service access is satisfied. Such judgment and selection can enable the system to establish the bearer on the most suitable cell according to the relevant information measured by the UE, and at the same time, balance the load in each cell at the beginning of establishing the bearer, and realize load balancing. BRIEF abstract
图 1是本发明实施例的基于 CoMP的接纳控制方法的示意图;  1 is a schematic diagram of a CoMP-based admission control method according to an embodiment of the present invention;
图 2是本发明实施例 LTE-A***中建立基于 CoMP技术接纳成功的信令 流程图;  2 is a signaling flowchart of establishing a successful reception based on CoMP technology in an LTE-A system according to an embodiment of the present invention;
图 3是本发明实施例 UE测量报告超时的处理信令流程图;  3 is a flowchart of processing signaling of a UE measurement report timeout according to an embodiment of the present invention;
图 4是本发明实施例筛选的 CoMP集内小区总资源不足, 接纳失败信令 流程图。 本发明的较佳实施方式 FIG. 4 is a flow chart of signaling failure of the total resource in the CoMP set filtered by the embodiment of the present invention. Preferred embodiment of the invention
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互组合。  Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
在 LTE中, 同一时间只有一个小区为某个 UE服务, UE的业务承载只能 建立在这个小区内。 但是在 LTE-A***中, 釆用 CoMP技术, 可以实现多个 小区为同一个 UE 同时服务, 本发明的实施例正^ ^于这一技术提供了一种 判断 CoMP集中各小区的负荷情况以及能否接纳业务, 即承载接纳控制的方 法。  In LTE, only one cell serves a certain UE at a time, and the service bearer of the UE can only be established in this cell. However, in the LTE-A system, the CoMP technology can be used to simultaneously serve multiple cells for the same UE. The embodiment of the present invention provides a method for determining the load of each cell in the CoMP set. Whether it can accept business, that is, the method of carrying acceptance control.
图 1为本发明实施例的基于 CoMP的接纳控制方法的示意图。 UE请求接 入业务时, 所述 UE初始接入的 CoMP小区, 也称为主 CoMP小区或主小区 执行以下操作:  FIG. 1 is a schematic diagram of a CoMP-based admission control method according to an embodiment of the present invention. When the UE requests to access the service, the CoMP cell initially accessed by the UE, also referred to as the primary CoMP cell or the primary cell, performs the following operations:
步骤 101 : 获取所在集内的其他 CoMP小区上报的资源状态报告; 集内 CoMP小区可以根据***默认设置或根据主 CoMP小区的请求周期 性上报所述资源状态报告。  Step 101: Obtain a resource status report reported by another CoMP cell in the set; the in-set CoMP cell may report the resource status report according to a system default setting or periodically according to a request of the primary CoMP cell.
本发明实施例所说的 CoMP小区集可以是预先静态设置也可以根据特定 测量结果动态设置。 可以根据布网情况, 把相邻的几个小区划定为 Comp小 区集, 或者根据 UE实际测量到的邻区集进行划分。  The CoMP cell set in the embodiment of the present invention may be statically set in advance or dynamically set according to a specific measurement result. According to the network situation, the adjacent cells may be classified as a Comp zone set, or may be divided according to the neighbor set actually measured by the UE.
步骤 102: 获取所述 UE上报的集内所有 CoMP小区的测量报告; UE可根据***默认设置或主 CoMP小区的请求向主 CoMP小区上 ^艮测 量报告。  Step 102: Obtain a measurement report of all CoMP cells in the set reported by the UE. The UE may report to the primary CoMP cell according to the system default setting or the request of the primary CoMP cell.
其中, 测量报告包括信号质量、预编码矩阵索引 (PMI, Precoding Matrix Indicator )、信道质量指示符( CQI, Channel Quality Indication )或秩指示( RI, Rank Indication ) 。  The measurement report includes a signal quality, a Precoding Matrix Indicator (PMI), a Channel Quality Indication (CQI), or a Rank Indication (RI).
以上步骤 101和步骤 102不分先后顺序。  The above steps 101 and 102 are in no particular order.
步骤 103: 根据 CoMP集内所有小区的资源状态报告和测量报告对集内 所有 CoMP小区进行加权排队, 并根据加权排队结果筛选 N个 CoMP小区; 其中, 主 CoMP小区根据该 CoMP小区和集内其他 CoMP小区的资源状 态报告、 信号质量、 PMI、 CQI或 RI进行加权排序, 比如资源状态的的权值 占 40%, 信号质量占 30%, 其他各占 10%。 Step 103: Perform weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the CoMP set, and filter N CoMP cells according to the weighted queuing result; where the primary CoMP cell is based on the CoMP cell and other in the set Resource status of the CoMP community State reports, signal quality, PMI, CQI, or RI are weighted, such as 40% of the resource state, 30% of the signal quality, and 10% each.
筛选的 CoMP小区个数 N与***配置筛选策略相关, 例如其筛选策略可 以是根据***配置或 UE用户的签约信息等, 但 N不能大于 UE 自身能支持 的最大承载个数。  The number of the selected CoMP cells is related to the system configuration filtering policy. For example, the screening policy may be based on the system configuration or the subscription information of the UE user, but the N cannot be greater than the maximum number of bearers that the UE can support.
一般而言, UE 的签约信息配置在核心网上, 当***配置的筛选策略与 UE的信息相关时, 在用户接入时核心网可以通过 E-RAB信令通知主 CoMP 小区。  Generally, the subscription information of the UE is configured on the core network. When the screening policy configured by the system is related to the information of the UE, the core network may notify the primary CoMP cell through E-RAB signaling when the user accesses.
步骤 104: 判断筛选出的 N个小区总资源是否能满足所述 UE请求建立 的业务需求, 如能满足则接纳并建立承载, 否则拒绝该业务接入。  Step 104: Determine whether the total resources of the selected N cells can meet the service requirements that the UE requests to establish, and if yes, accept and establish a bearer, otherwise reject the service access.
本发明实施例的方法可以适用于位于小区中心的 UE,也可以适用于小区 边缘的 UE,且当 UE位于小区边缘时,其接纳控制效果更加明显。可理解地, 在 UE发起接入请求时会携带相关信息从而可以显示是否处于是小区边缘。  The method of the embodiment of the present invention can be applied to a UE located at a cell center, and can also be applied to a UE at a cell edge, and when the UE is located at a cell edge, the admission control effect is more obvious. Obviously, when the UE initiates an access request, it carries relevant information so that it can be displayed whether it is at the cell edge.
优选地, 主 CoMP 小区向辅 CoMP 小区发送周期性资源测量控制, 辅 CoMP 小区根据测量控制中的周期时间周期性上报的资源测量报告, 当 UE 请求业务建立时, eNodeB向 UE发送关于 CoMP集内所有小区的测量控制(信 号质量、 PMI、 RI、 CQI等) , UE上报测量报告后。 eNodeB对 CoMP集内 所有小区进行加权排队(资源、 信号质量、 PMI、 RI、 CQI等) , 根据 UE签 约能够接受的最大承载数量(n ) 筛选符合条件的 TOP ( n ) 小区。 此时再判 断筛选出的这些小区的资源总和是否满足要建立业务的资源, 如果满足将该 业务接纳并在所有小区上建立承载, 否则拒绝该业务接入。  Preferably, the primary CoMP cell sends a periodic resource measurement control to the secondary CoMP cell, and the secondary CoMP cell periodically reports the resource measurement report according to the periodic time in the measurement control. When the UE requests the service establishment, the eNodeB sends the information about the CoMP set to the UE. Measurement control (signal quality, PMI, RI, CQI, etc.) of all cells, after the UE reports the measurement report. The eNodeB performs weighted queuing (resource, signal quality, PMI, RI, CQI, etc.) on all cells in the CoMP set, and filters the eligible TOP (n) cells according to the maximum number of bearers (n) that the UE can accept. At this time, it is determined whether the sum of the resources of the selected cells meets the resources for establishing a service, and if the service is accepted and the bearer is established on all the cells, the service access is rejected.
基于 CoMP的接纳控制可以使处在小区边缘的用户通过 CoMP技术使用 网络资源, 且 CoMP集内各小区实现了负荷均衡。  CoMP-based admission control enables users at the cell edge to use network resources through CoMP technology, and each cell in the CoMP set achieves load balancing.
为了进一步说明本发明, 下面结合附图和实施例进行详细说明。 In order to further illustrate the present invention, the following detailed description will be made in conjunction with the accompanying drawings.
实施例 1  Example 1
UE请求接入一个或多个业务时,筛选的 CoMP集内小区资源可以满足时 的接纳控制流程, 如图 2所示, 包括以下步骤: 步骤 201 : 主小区向 CoMP集内其他小区发送资源测量请求; 该测量请求只发送一次, 携带小区上报资源情况信息, 上报周期等。 步骤 202: CoMP集内其他小区根据主小区的资源测量请求中要求的时间 周期上报当前的小区资源负载情况; When the UE requests access to one or more services, the cell resource in the filtered CoMP set can satisfy the admission control process. As shown in FIG. 2, the following steps are included: Step 201: The primary cell sends a resource measurement request to other cells in the CoMP set. The measurement request is sent only once, and the cell reporting resource status information, reporting period, and the like are carried. Step 202: The other cells in the CoMP set report the current cell resource load status according to the time period required in the resource measurement request of the primary cell.
步骤 203: 核心网向主小区发送演进无线接入承载(E-RAB, EVOLVED Step 203: The core network sends an evolved radio access bearer (E-RAB, EVOLVED) to the primary cell.
RADIO ACCESS BEAR )接纳请求; RADIO ACCESS BEAR) acceptance request;
步骤 204: 主小区向 UE发送测量控制请求, 要求 UE测量目前 CoMP集 内所有小区信号质量、 PMI、 CQI、 RI。  Step 204: The primary cell sends a measurement control request to the UE, and requests the UE to measure signal quality, PMI, CQI, and RI of all cells in the current CoMP set.
步骤 205: UE根据测量控制请求上报测量到的 CoMP集内小区的信号质 量、 PMI、 RI、 CQI等; Step 205: The UE reports the signal quality, PMI, RI, CQI, etc. of the measured cell in the CoMP set according to the measurement control request.
步骤 206:根据 UE上报的 CoMP集内小区的相关信息进行加权处理,对 所有未拥塞的小区进行排队;  Step 206: Perform weighting processing according to related information of cells in the CoMP set reported by the UE, and queue all uncongested cells.
步骤 207: 根据 UE最大能够接纳的承载数对加权处理的小区进行筛选, 选出相应的 TOP小区;  Step 207: Filter the weighted cells according to the maximum number of bearers that the UE can receive, and select a corresponding TOP cell.
步骤 208: 根据筛选出的 TOP小区现有资源总和判断是否满足该业务接 入;  Step 208: Determine whether the service access is satisfied according to the sum of the existing resources of the selected TOP cell.
步骤 209: TOP所有小区资源总和满足用户接入, 主小区向核心网发送 E-RAB接纳成功响应。  Step 209: The total cell resource sum of the TOP satisfies the user access, and the primary cell sends an E-RAB admission success response to the core network.
实施例 2 Example 2
本实施例 UE请求接入一个或多个业务时, UE测量 ^艮告超时时侯的处理 流程, 如图 3所示, 该处理流程包括:  In this embodiment, when the UE requests access to one or more services, the UE measures the processing flow when the UE times out, as shown in FIG. 3, the processing flow includes:
步骤 301 : 主小区向 CoMP集内其他小区发送资源测量请求;  Step 301: The primary cell sends a resource measurement request to other cells in the CoMP set.
该测量请求只发送一次, 携带小区上报资源情况信息, 上报周期等。 步骤 302: 集内其他小区根据主小区的资源测量请求中要求的时间周期 上报当前的小区资源负载情况; 步骤 303: 核心网向主小区发送的 E-RAB接纳请求; The measurement request is sent only once, and the resource reporting information of the cell is reported, and the reporting period is performed. Step 302: The other cells in the set report the current cell resource load according to the time period required in the resource measurement request of the primary cell. Step 303: The E-RAB admission request sent by the core network to the primary cell.
步骤 304: 主小区向 UE发送测量控制请求, 要求 UE测量目前 CoMP集 内所有小区信号质量、 CQI、 PML RI等。  Step 304: The primary cell sends a measurement control request to the UE, and requests the UE to measure signal quality, CQI, PML RI, and the like of all cells in the current CoMP set.
步骤 305: 在***配置的超时时间内未收到 UE的测量 ^艮告, 主小区向核 心网发送 E-RAB接纳失败响应。  Step 305: The UE does not receive the measurement result of the UE within the timeout period configured by the system, and the primary cell sends an E-RAB admission failure response to the core network.
实施例 3 Example 3
本实施例中, UE请求接入一个或多个业务时, 筛选后 CoMp集内剩余小 区资源不足时的接纳控制过程, 如图 4所示:  In this embodiment, when the UE requests access to one or more services, the admission control process when the remaining small cells in the CoMp set are insufficient is filtered, as shown in FIG. 4:
步骤 401 : 主小区向 CoMP集内其他小区发送资源测量请求;  Step 401: The primary cell sends a resource measurement request to other cells in the CoMP set.
该测量请求只发送一次, 携带小区上报资源情况信息, 上报周期等。 步骤 402: 集内其他小区根据主小区的资源测量请求中要求的时间周期 上报当前的小区资源负载情况;  The measurement request is sent only once, and the resource reporting information of the cell is reported, and the reporting period is performed. Step 402: The other cells in the set report the current cell resource load according to the time period required in the resource measurement request of the primary cell.
步骤 403: 核心网向主小区发送的 E-RAB接纳请求;  Step 403: The E-RAB admission request sent by the core network to the primary cell.
步骤 404: 主小区向 UE发送测量控制请求, 要求 UE测量目前 CoMP集 内所有小区信号质量、 CQI、 PML RI等;  Step 404: The primary cell sends a measurement control request to the UE, requesting the UE to measure the signal quality, CQI, PML RI, etc. of all cells in the current CoMP set;
步骤 405: UE根据测量控制请求上报测量到的 CoMP集小区的信号质量、 PML RI、 CQI等;  Step 405: The UE reports the measured signal quality, PML RI, CQI, and the like of the CoMP set cell according to the measurement control request.
步骤 406:根据 UE上报的 CoMP集内小区的相关信息进行加权处理,对 所有未拥塞的小区进行排队;  Step 406: Perform weighting processing according to related information of cells in the CoMP set reported by the UE, and queue all uncongested cells.
步骤 407: 根据 UE最大能够接纳的承载数对加权处理的小区进行筛选, 选出相应的 TOP小区;  Step 407: Filter the weighted cells according to the maximum number of bearers that the UE can receive, and select a corresponding TOP cell.
步骤 408: 根据筛选出的 TOP小区现有资源总和判断是否满足该业务接 入;  Step 408: Determine whether the service access is satisfied according to the sum of the existing resources of the selected TOP cell.
步骤 409: TOP所有小区资源总和不满足用户接入, 主小区向核心网发 送 E-RAB接纳失败响应。  Step 409: The sum of all the cell resources of the TOP does not satisfy the user access, and the primary cell sends an E-RAB admission failure response to the core network.
对应于以上方法, 本发明实施例还提供了一种 CoMP小区基站, 该基站 包括: 资源状态报告获取模块、 测量报告获取模块、 CoMP 小区筛选模块及 承载接纳控制模块, 其中: Corresponding to the above method, an embodiment of the present invention further provides a CoMP cell base station, where the base station The method includes: a resource status report obtaining module, a measurement report obtaining module, a CoMP cell screening module, and a bearer admission control module, where:
所述资源状态报告获取模块设置成: 获取所在集内的其他 CoMP小区上 报的资源状态报告;  The resource status report obtaining module is configured to: obtain a resource status report reported by other CoMP cells in the set;
所述测量报告获取模块设置成: 获取在当前基站初始接入的 UE上报的 集内所有 CoMP小区的测量报告;  The measurement report obtaining module is configured to: obtain a measurement report of all CoMP cells in the set reported by the UE initially accessed by the current base station;
所述 CoMP小区筛选模块设置成: 根据 CoMP集内所有小区的资源状态 报告和测量报告对集内所有 CoMP小区进行加权排队, 并根据加权排队结果 筛选 N个 CoMP小区;  The CoMP cell screening module is configured to: perform weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the CoMP set, and filter N CoMP cells according to the weighted queuing result;
所述承载接纳控制模块设置成: 判断筛选出的 N个小区总资源是否能满 足所述 UE请求建立的业务需求, 如能满足则接纳并建立承载, 否则拒绝该 业务接入。  The bearer admission control module is configured to: determine whether the total resources of the selected N cells can meet the service requirements that the UE requests to establish, and if yes, accept and establish a bearer, otherwise reject the service access.
其中, 所述资源状态报告获取模块获取的资源状态报告是集内 CoMP小 区根据默认设置周期性上报的; 所述测量报告获取模块获取的测量报告是所 述 UE根据默认设置上报的。  The resource status report obtained by the resource status report obtaining module is periodically reported by the in-set CoMP cell according to the default setting. The measurement report obtained by the measurement report obtaining module is reported by the UE according to the default setting.
其中 , 所述资源状态报告获取模块获取所述资源状态报告包括向集内其 他 CoMP小区发送资源状态报告请求以及接收集内其他 CoMP小区周期性发 送的资源状态报告;所述测量报告获取模块获取所述测量报告包括向所述 UE 发送测量控制请求, 以及接收所述 UE发送的测量报告。  The resource status report acquiring module acquires the resource status report, and sends a resource status report request to other CoMP cells in the set and a resource status report periodically sent by other CoMP cells in the set; the measurement report obtaining module acquires the The measurement report includes transmitting a measurement control request to the UE, and receiving a measurement report sent by the UE.
其中,所述测量报告包括信号质量、 PMI、 CQI或 RI ,所述初始接入 CoMP 小区根据该 CoMP小区和集内其他 CoMP小区的资源状态报告、 信号质量、 PML CQI或 RI进行加权排序。  The measurement report includes a signal quality, a PMI, a CQI, or an RI, and the initial access CoMP cell performs weighted ordering according to a resource status report, a signal quality, a PML CQI, or an RI of the CoMP cell and other CoMP cells in the set.
以上所说的基站包括 LTE-A***中的演进中的节点 B ( ENB , eNodeB )。 本发明实施例中, 主 CoMP小区可以根据辅 CoMP小区周期性上报的资 源情况及 UE上报的 CoMP集内所有小区的信号质量、 PMI、 RI、 CQI, 对 CoMP 集内所有小区进行加权排队并筛选。 从而根据筛选后小区的总资源来 判断是否满足 UE业务接入。这样的判断和选择可以使***根据 UE测量到的 相关信息将承载建立在最合适的小区上, 同时在建立承载之初就将负荷均衡 在各小区中, 实现了负荷均衡。 本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块可以釆用硬件 的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任何特 定形式的硬件和软件的结合。 The base station mentioned above includes an evolved Node B (ENB, eNodeB) in the LTE-A system. In the embodiment of the present invention, the primary CoMP cell may perform weighted queuing and screening on all cells in the CoMP set according to the resource condition periodically reported by the secondary CoMP cell and the signal quality, PMI, RI, and CQI of all cells in the CoMP set reported by the UE. . Therefore, it is determined whether the UE service access is satisfied according to the total resources of the filtered cell. Such judgment and selection can enable the system to establish the bearer on the most suitable cell according to the related information measured by the UE, and at the same time, balance the load in each cell at the beginning of establishing the bearer, and achieve load balancing. One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module in the foregoing embodiment may be implemented in the form of hardware, or may be implemented in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.
工业实用性 Industrial applicability
上述技术方案中, 主 CoMP小区可以根据辅 CoMP小区上报的资源情况 及 UE上报的 CoMP集内所有小区的测量报告, 对 CoMP集内所有小区进行 加权排队并筛选, 从而根据筛选后小区的总资源来判断是否满足 UE业务接 入。 这样的判断和选择可以使***根据 UE测量到的相关信息将承载建立在 最合适的小区上, 同时在建立承载之初就将负荷均衡在各小区中, 实现了负 荷均衡。 因此本发明具有很强的工业实用性。  In the foregoing technical solution, the primary CoMP cell may perform weighted queuing and screening on all cells in the CoMP set according to the resource condition reported by the secondary CoMP cell and the measurement report of all cells in the CoMP set reported by the UE, so as to select the total resources of the selected cell according to the filtered To determine whether the UE service access is satisfied. Such judgment and selection can enable the system to establish the bearer on the most suitable cell according to the relevant information measured by the UE, and at the same time, balance the load in each cell at the beginning of establishing the bearer, and realize load balancing. Therefore, the present invention has strong industrial applicability.

Claims

1、一种基于多点协作传输及接收技术 CoMP的接纳控制方法,用户设备 UE请求接入业务时 , 所述 UE初始接入的 CoMP小区执行以下操作: A method for receiving and controlling a CoMP based on a multipoint coordinated transmission and reception technology. When a user equipment UE requests an access service, the CoMP cell initially accessed by the UE performs the following operations:
获取所在集内的其他 CoMP小区上报的资源状态报告;  Obtain a resource status report reported by other CoMP cells in the set;
获取所述 UE上报的所述集内所有 CoMP小区的测量报告;  Obtaining a measurement report of all CoMP cells in the set reported by the UE;
根据所述集内所有小区的资源状态报告和测量报告对集内所有 CoMP小 区进行加权排队, 并根据加权排队结果筛选 N个 CoMP小区;  All CoMP cells in the set are weighted and queued according to resource status reports and measurement reports of all cells in the set, and N CoMP cells are filtered according to the weighted queuing results;
判断筛选出的 N个 CoMP小区总资源是否能满足所述 UE请求建立的业 务需求, 如能满足则接纳并建立承载, 否则拒绝业务接入。  It is determined whether the total resources of the selected N CoMP cells can meet the service requirements that the UE requests to establish, and if yes, the bearer is accepted and established, otherwise the service access is denied.
2、如权利要求 1所述的接纳控制方法,其中:获取所在集内的其他 CoMP 小区上报的资源状态报告的步骤包括: 2. The admission control method according to claim 1, wherein the step of acquiring the resource status report reported by the other CoMP cells in the set includes:
集内的其他 CoMP小区根据默认设置或根据所述 UE初始接入的 CoMP 小区的请求周期性上报所述资源状态报告。  The other CoMP cells in the set periodically report the resource status report according to a default setting or according to a request of the CoMP cell initially accessed by the UE.
3、 如权利要求 2所述的接纳控制方法, 其中: 集内的其他 CoMP小区根 据所述 UE初始接入的 CoMP小区的请求周期性上报所述资源状态报告的步 骤包括: 3. The admission control method according to claim 2, wherein: the step of periodically reporting the resource status report by the other CoMP cells in the set according to the request of the CoMP cell initially accessed by the UE includes:
所述 UE初始接入的 CoMP小区向所述集内其他小区发送资源测量请求; 所述集内其他小区根据主小区的资源测量请求中要求的时间周期上报当 前的小区资源负载情况。  The CoMP cell initially accessed by the UE sends a resource measurement request to other cells in the set; the other cells in the set report the current cell resource load according to the time period required in the resource measurement request of the primary cell.
4、 如权利要求 1-3中任一项所述的接纳控制方法, 其中: 获取所述 UE 上报的所述集内所有 CoMP小区的测量报告的步骤包括: The admission control method according to any one of claims 1-3, wherein: the step of acquiring a measurement report of all CoMP cells in the set reported by the UE includes:
所述 UE根据默认设置或根据所述 UE初始接入的 CoMP小区的请求周 期性上报所述测量报告。  The UE reports the measurement report according to a default setting or according to a request period of the CoMP cell initially accessed by the UE.
5、如权利要求 4所述的接纳控制方法,其中:所述 UE初始接入的 CoMP 小区的请求周期性上报所述测量报告的步骤包括: 所述 UE初始接入的 CoMP小区向所述 UE发送测量控制请求, 要求所 述 UE获得所述集内所有小区的测量报告; The admission control method according to claim 4, wherein the step of periodically reporting the measurement report by the request of the CoMP cell initially accessed by the UE comprises: The CoMP cell initially accessed by the UE sends a measurement control request to the UE, and the UE is required to obtain a measurement report of all cells in the set;
所述 UE根据所述测量控制请求上报所述集内所有小区的测量报告。  The UE reports a measurement report of all cells in the set according to the measurement control request.
6、 如权利要求 1所述的接纳控制方法, 其中: 所述测量报告包括信号质 量、 预编码矩阵索引 PMI、 信道质量指示符 CQI或秩指示 RI。 6. The admission control method according to claim 1, wherein: said measurement report comprises a signal quality, a precoding matrix index PMI, a channel quality indicator CQI or a rank indication RI.
7、 一种多点协作传输及接收技术 CoMP小区基站, 该基站包括: 资源状 态报告获取模块、 测量报告获取模块、 CoMP 小区筛选模块及承载接纳控制 模块, 其中: A multi-point coordinated transmission and reception technology CoMP cell base station, the base station includes: a resource status report acquisition module, a measurement report acquisition module, a CoMP cell screening module, and a bearer admission control module, where:
所述资源状态报告获取模块设置成: 获取 UE初始接入的 CoMP小区所 在集内的其他 CoMP小区上报的资源状态报告;  The resource status report obtaining module is configured to: obtain a resource status report reported by another CoMP cell in the set of the CoMP cell that the UE initially accesses;
所述测量报告获取模块设置成:获取所述 UE上报的所述集内所有 CoMP 小区的测量报告;  The measurement report obtaining module is configured to: obtain a measurement report of all CoMP cells in the set reported by the UE;
所述 CoMP小区筛选模块设置成: 根据所述集内所有小区的资源状态报 告和测量报告对集内所有 CoMP小区进行加权排队, 并根据加权排队结果筛 选 N个 CoMP小区;  The CoMP cell screening module is configured to: perform weighted queuing on all CoMP cells in the set according to resource status reports and measurement reports of all cells in the set, and filter N CoMP cells according to the weighted queuing result;
所述承载接纳控制模块设置成: 判断筛选出的 N个 CoMP小区总资源是 否能满足所述 UE请求建立的业务需求, 如能满足则接纳并建立承载, 否则 拒绝业务接入。  The bearer admission control module is configured to: determine whether the total resources of the selected N CoMP cells can meet the service requirements that the UE requests to establish, and if yes, accept and establish a bearer; otherwise, the service access is denied.
8、 如权利要求 7所述的 CoMP小区基站, 其中: 所述资源状态报告是所 述集内的其他 CoMP小区根据默认设置或根据所述 UE初始接入的 CoMP小 区的请求周期性上 的; 所述测量报告是所述 UE根据默认设置或根据所述 UE初始接入的 CoMP 小区的请求周期性上 的。 8. The CoMP cell base station according to claim 7, wherein: the resource status report is periodically performed by other CoMP cells in the set according to a default setting or according to a request of a CoMP cell initially accessed by the UE; The measurement report is periodically performed by the UE according to a default setting or according to a request of a CoMP cell initially accessed by the UE.
9、 如权利要求 7所述的 CoMP小区基站, 其中: 9. The CoMP cell base station according to claim 7, wherein:
所述资源状态报告获取模块设置成按照以下方式获取所述资源状态报 告: 所述 UE初始接入的 CoMP小区向集内其他 CoMP小区发送资源状态报 告请求; 以及, The resource status report obtaining module is configured to obtain the resource status report in the following manner: The CoMP cell initially accessed by the UE sends a resource status report request to other CoMP cells in the set; and,
接收所述集内其他 CoMP小区根据主小区的资源测量请求中要求的时间 周期性上报当前的小区资源负载情况;  Receiving, by the other CoMP cells in the set, the current cell resource load situation is periodically reported according to the time required in the resource measurement request of the primary cell;
所述测量报告获取模块设置成按照以下方式获取所述测量报告: 所述 UE初始接入的 CoMP小区向所述 UE发送测量控制请求, 要求所 述 UE获得所述集内所有小区的测量报告; 以及,  The measurement report obtaining module is configured to acquire the measurement report according to the following manner: the CoMP cell initially accessed by the UE sends a measurement control request to the UE, and the UE is required to obtain a measurement report of all cells in the set; as well as,
所述 UE根据所述测量控制请求上报所述集内所有小区的测量报告。  The UE reports a measurement report of all cells in the set according to the measurement control request.
10、 如权利要求 7所述的 CoMP小区基站, 其中: 所述测量报告包括信 号质量、 预编码矩阵索引 PMI、 信道质量指示符 CQI或秩指示 RI。  10. The CoMP cell base station according to claim 7, wherein: said measurement report comprises a signal quality, a precoding matrix index PMI, a channel quality indicator CQI or a rank indication RI.
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