WO2017152726A1 - Procédé et dispositif d'attribution de ressources radio de cellules - Google Patents

Procédé et dispositif d'attribution de ressources radio de cellules Download PDF

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Publication number
WO2017152726A1
WO2017152726A1 PCT/CN2017/072053 CN2017072053W WO2017152726A1 WO 2017152726 A1 WO2017152726 A1 WO 2017152726A1 CN 2017072053 W CN2017072053 W CN 2017072053W WO 2017152726 A1 WO2017152726 A1 WO 2017152726A1
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WO
WIPO (PCT)
Prior art keywords
cell
coordinated
user equipment
available radio
transmission user
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Application number
PCT/CN2017/072053
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English (en)
Chinese (zh)
Inventor
黄琛
李楠
顾军
袁航周
白楠
刘铮
陆勇
Original Assignee
中兴通讯股份有限公司
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Publication of WO2017152726A1 publication Critical patent/WO2017152726A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • the present disclosure relates to the field of mobile communication technologies, for example, to a method and apparatus for cell radio resource allocation.
  • the system needs to be able to eliminate interference of multiple or all strong interference neighboring cells of the CoMP user. At the same time, it is necessary to increase the resource utilization of the cell, thereby improving system throughput and system performance.
  • the present disclosure provides a method and apparatus for cell radio resource allocation.
  • the disclosure provides a method for cell radio resource allocation, including:
  • the step of calculating the priority of each available radio resource of the coordinated cell may include:
  • the step of calculating a coordination cost factor corresponding to the available radio resources that can be used by the coordinated multi-point transmission user equipment in the coordinated cell may include:
  • the coordination cost factor is replaced by the number of resource blocks to be changed, and the number of resource blocks to be changed is the number of available radio resources of the coordinated cell to avoid interference.
  • the step of determining a coordinated cell adjacent to the serving cell, where the coordinated cell generates strong interference to the coordinated multi-point transmission user equipment that interacts with the serving cell may include:
  • the present disclosure provides an apparatus for cell radio resource allocation, including:
  • a determining module configured to determine a coordinated cell adjacent to the serving cell, the coordinated cell pair
  • the coordinated multi-point transmission user equipment of the serving cell interaction generates strong interference
  • a calculating module configured to calculate, according to a weighted sum of a coordination cost factor corresponding to the available radio resources in the coordinated cell, the available radio of the coordinated cell according to the interference level of the coordinated cell to the multipoint transmission user equipment Priority of resources;
  • a processing module configured to enable the serving cell to allocate the available radio resource with the highest priority to the coordinated multi-point transmission user equipment; and cause the coordinated cell to no longer perform data on the corresponding resource location of the available radio resource transmission.
  • the calculating module may include:
  • An interference level calculation sub-module configured to calculate, on each available radio resource, a coordinated multi-point transmission user equipment to be interfered with by the coordinated cell;
  • a coordination cost factor calculation sub-module configured to calculate a coordination cost factor corresponding to available radio resources available to the coordinated multi-point transmission user equipment in the coordinated cell;
  • a ranking module configured to prioritize the available radio resources available to the coordinated multi-point transmission user equipment according to the weighted sum of the interference level of the available radio resources and the coordination cost factor.
  • the coordination cost factor calculation submodule may also be configured to:
  • the coordination cost factor is replaced by the number of resource blocks to be changed, and the number of resource blocks to be changed is the number of available radio resources of the coordinated cell to avoid interference.
  • the determining module may be configured to:
  • Embodiments of the present disclosure also provide a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the above method.
  • An embodiment of the present disclosure further provides an electronic device, including:
  • At least one processor At least one processor
  • the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method described above.
  • the method and apparatus for cell radio resource allocation of the present disclosure can optimize resource allocation for each cell, not only effectively interfere with coordinated multi-point transmission user equipment, but also improve coordinated multi-point transmission users.
  • the throughput of the device it can also improve the resource utilization of the cell and greatly improve the overall performance of the cell.
  • FIG. 1 is a schematic flowchart diagram of a method for cell radio resource allocation in an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart diagram of a method for cell radio resource allocation in an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram showing the complete flow of an apparatus for cell radio resource allocation in an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.
  • the disclosure provides a method for cell radio resource allocation, including:
  • Step 1 Determine a coordinated cell adjacent to the serving cell, and the coordinated cell generates strong interference to the coordinated multi-point transmission user equipment that interacts with the serving cell.
  • the coordinated multi-point transmission user equipment (CoMP UE) provides services by the service providing cell and interacts with the serving cell; and determines a neighboring cell that generates strong interference to the coordinated multi-point transmission user equipment within a certain distance around the serving cell.
  • the coordinated multi-point transmission user equipment (CoMP UE) provides services by the service providing cell and interacts with the serving cell; and determines a neighboring cell that generates strong interference to the coordinated multi-point transmission user equipment within a certain distance around the serving cell.
  • a collaborative cell As a collaborative cell.
  • Step 2 Calculate a priority of each available radio resource of the coordinated cell according to a weighted sum of the interference level of the coordinated cell to the multipoint transmission user equipment and a coordination cost factor corresponding to the available radio resources in the coordinated cell. level.
  • the priority ranking can be performed on the coordinated cell and the service is smaller. Optimized resource allocation.
  • Step 3 The serving cell allocates the available radio resource with the highest priority to the coordinated multi-point transmission user equipment, and causes the coordinated cell to no longer perform data transmission on the corresponding resource location of the available radio resource.
  • the serving cell allocates the highest priority available radio resources to the coordinated multi-point transmission user equipment; and causes the coordinated cell to no longer perform data transmission on the corresponding resource location of the highest priority available radio resource.
  • the coordinated cell will evade the resource location and no longer perform data transmission.
  • the present disclosure provides a method for cell radio resource allocation, which comprehensively considers an interference relationship between a serving cell and a coordinated cell and a radio resource utilization efficiency, and optimizes a resource allocation strategy for each cell, thereby reducing coordinated multipoint
  • the interference that the user equipment is transmitted can greatly improve the resource utilization of the cell.
  • step 1 the coordinated cell is determined according to the reference signal received power (RSRP) of the serving cell and the cell adjacent to the serving cell, respectively, according to the coordinated multipoint transmission user equipment. That is, in the range of the adjacent distance of the serving cell, the neighboring cell with high reference power received by the user equipment generated by the coordinated multi-point transmission user equipment is used as the coordinated cell.
  • RSRP reference signal received power
  • step 2 includes:
  • Step 21 Calculate, on each available radio resource, the coordinated multi-point transmission user equipment is subjected to the interference level of the coordinated cell.
  • the priority of each available radio resource of the coordinated cell it is first determined that the interference level of the coordinated cell is received on each available radio resource of the coordinated multi-point transmission user equipment.
  • Step 22 Calculate a coordination cost factor corresponding to available radio resources that can be used by the coordinated multi-point transmission user equipment in the coordinated cell.
  • the coordination cost factor may be replaced by the number of resource blocks to be changed, where the number of resource blocks to be changed is the number of available radio resources of the coordinated cell to avoid interference.
  • Step 23 Prioritize the available radio resources that can be used by the coordinated multi-point transmission user equipment according to the weighted sum of the interference level of the available radio resources and the coordination cost factor.
  • the priority of the available radio resources can be determined by the weighted sum of the interference level of the available radio resources and the coordination cost factor.
  • the radio resource used by the cooperative cell to circumvent the interference of the coordinated multi-point transmission user equipment is referred to as “alternative resource”, and the radio resource that has been occupied and allocated to the coordinated multi-point transmission user equipment is referred to as “occupied resource”, and other The remaining unoccupied wireless resources are called "ordinary resources.”
  • a coordination cost factor corresponding to available radio resources that can be used by the coordinated multi-point transmission user equipment in the coordinated cell is calculated.
  • the coordination cost factor may be represented by the number of resource blocks to be changed, and the number of resource blocks to be changed is the number of radio resources in which the available radio resources of the coordinated cell become evasive interference. That is, the number of resource blocks needs to be changed to the total number of changes in the radio resources from the "ordinary resources” to the "alternative resources" in the coordinated cell.
  • the coordinated multi-point transmission user equipment may prioritize the resource blocks according to the interference level and the coordination cost factor on each available radio resource. Prioritization is determined by the weighted sum of the interference level and the coordination cost factor for each available radio resource.
  • the serving cell allocates the available radio resource with the highest priority to the coordinated multi-point transmission user equipment; and causes the coordinated cell to not perform data transmission on the corresponding resource location of the available radio resource. According to the output result of the prioritization step, the serving cell allocates the radio resource with the highest priority to the coordinated multi-point transmission user equipment; at the same time, the coordinated cell changes the radio resource at the same resource location from the “ordinary resource” to the “alternative resource”. ".
  • the method for the radio resource allocation of the cell of the present disclosure is described below by taking the radio resource granularity (RBG) in the LTE system as an example.
  • RBG radio resource granularity
  • the method of this patent is not limited to the LTE system, and the radio resource in the present disclosure is not limited to the RBG.
  • the implementation steps are as follows:
  • the set of adjacent interfering cells caused by it is: ⁇ Cell1, Cell2, Cell3...CellK ⁇ , and these cells are coordinated cells;
  • the coordinated multi-point transmission user equipment is subject to the interference level of the coordinated cell. It is predicted that the coordinated multi-point transmission of the user equipment is interfered with by the interfering cell on each of the assignable RBG resources. For example, on the resource block RBG(m), the interference level is represented by IL_RBG(m). The prediction of IL_RBG(m) is to sum the interference received by each coordinated cell. If the resource block RBG(m) of the coordinated cell Cellk is “occupied resource”, the coordinated cell Cellk may cause interference to the coordinated multi-point transmission user equipment on the resource block RBG(m), and the interference level transmits the user equipment through coordinated multi-point transmission.
  • the measured RSRP of the coordinated cell Cellk is measured; if the resource block m of the coordinated cell Cellk is "ordinary resource”, then the network side considers that "ordinary resource” can be changed to "alternative resource”, and the coordinated cell Cellk can be considered as a resource.
  • Block RBG(m) does not cause interference to the coordinated multipoint transmission user equipment.
  • a coordination cost factor corresponding to available radio resources that can be used by the coordinated multi-point transmission user equipment in the coordinated cell is calculated.
  • the coordination cost factor can be represented by the number of resource blocks N_change to be changed. N_change is defined as the number of required resources from the common resource to the alternate resource in the coordinated cell of the coordinated multipoint transmission user equipment if the coordinated multipoint transmission user equipment needs to be coordinated.
  • the coordinated multi-point transmission user equipment may prioritize the resource blocks according to the interference level IL_RBG and the coordination cost factor on the respective available resource blocks.
  • the prioritization is determined by the weighted sum of the interference level IL_RBG and the coordination cost factor N_change of each available RBG resource, as follows:
  • ⁇ and ⁇ are dimensionless coefficients.
  • the serving cell allocates the available radio resource with the highest priority to the coordinated multi-point transmission user equipment; and causes the coordinated cell to not perform data transmission on the corresponding resource location of the available radio resource. According to the output result of the prioritization step, the serving cell allocates the radio resource with the highest priority to the coordinated multi-point transmission user equipment; at the same time, the coordinated cell changes the radio resource at the same resource location from the “ordinary resource” to the “alternative resource”. ".
  • the method and device for radio resource allocation in the cell of the present disclosure comprehensively considers the interference relationship between the cells and the resource efficiency of the cell, and optimizes the resource allocation strategy for each cell, thereby reducing the interference of the coordinated multi-point transmission user equipment. It can greatly improve the resource utilization of the community.
  • the present disclosure also provides an apparatus for cell radio resource allocation.
  • the apparatus includes:
  • the determining module 100 is configured to determine a coordinated cell adjacent to the serving cell, the coordinated cell generating strong interference to the coordinated multi-point transmission user equipment interacting with the serving cell.
  • the calculation module 200 is configured to calculate, according to the interference level of the coordinated cell to the multi-point transmission user equipment, and the weighted sum of the coordination cost factors corresponding to the available radio resources in the coordinated cell, calculate each available of the coordinated cell The priority of wireless resources.
  • the processing module 300 is configured to enable the serving cell to allocate the available radio resource with the highest priority to the coordinated multi-point transmission user equipment; and prevent the coordinated cell from performing on the corresponding resource location of the available radio resource data transmission.
  • the calculation module 200 can include:
  • the interference level calculation sub-module 201 is configured to calculate, on each available wireless resource, the coordinated multi-point transmission user equipment to be interfered with by the coordinated cell.
  • the determining module may be configured to determine the coordinated cell according to the reference signal received power of the serving cell and the cell adjacent to the serving cell, respectively, according to the coordinated multi-point transmission user equipment.
  • the coordination cost factor calculation sub-module 202 is configured to calculate a coordination cost factor corresponding to available radio resources available to the coordinated multi-point transmission user equipment in the coordinated cell.
  • the module is further configured to: replace the coordination cost factor with a number of required resource blocks, where the number of resource blocks to be changed is the number of available radio resources of the coordinated cell to avoid interference.
  • a sorting module 203 configured to determine the interference level and coordination cost according to the available radio resources A weighted sum of the factors prioritizing the available radio resources available to the coordinated multipoint transmission user equipment.
  • the ranking module can be configured to include determining a priority of available wireless resources by a weighted sum of interference levels of available wireless resources and a coordination cost factor.
  • the apparatus for cell radio resource allocation comprehensively considers an interference relationship between cells and resource efficiency of a cell, and performs an optimized resource allocation strategy for each cell. It not only effectively interferes with coordinated multi-point transmission user equipment, improves the throughput of coordinated multi-point transmission user equipment, but also improves system resource utilization and greatly improves the overall performance of the system.
  • modules may be implemented in software for execution by various types of processors.
  • a determination module can include one or more physical or logical blocks of computer instructions, which can be constructed, for example, as an object, procedure, or function. Nevertheless, the executable code of the determining module need not be physically located together, but may comprise different instructions stored in different bits, which when combined logically together constitute a module and implement the specified function of the module .
  • the determination module can be a single instruction or a number of instructions, and can even be distributed over multiple different code segments, distributed among different programs, and distributed across multiple memory devices.
  • operational data may be identified within the modules and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed at different locations (including on different storage devices), and may at least partially exist as an electronic signal on a system or network.
  • the module can be implemented by software, considering the level of the existing hardware process, the module can be implemented in software, and the technician can construct a corresponding hardware circuit to implement the corresponding function without considering the cost.
  • the hardware circuitry includes conventional Very Large Scale Integration (VLSI) circuits or gate arrays as well as existing semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI Very Large Scale Integration
  • the modules can also be implemented with programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.
  • Embodiments of the present disclosure also provide a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the method of any of the above embodiments.
  • the embodiment of the present disclosure further provides a schematic structural diagram of an electronic device.
  • the electronic device includes:
  • At least one processor 50 exemplified by a processor 50 in FIG. 5; and a memory (memory) 51 may also include a communication interface (Communications Interface) 52 and a bus 53.
  • the processor 50, the communication interface 52, and the memory 51 can complete communication with each other through the bus 53.
  • Communication interface 52 can be used for information transmission.
  • Processor 50 can invoke logic instructions in memory 51 to perform the methods of the above-described embodiments.
  • logic instructions in the memory 51 described above may be implemented in the form of software functional units and sold or used as separate products, and may be stored in a computer readable storage medium.
  • the memory 51 is used as a computer readable storage medium for storing software programs, computer executable programs, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure.
  • the processor 50 executes the function application and the data processing by executing the software program, the instruction and the module stored in the memory 51, that is, the cell radio resource allocation method in the foregoing method embodiment.
  • the memory 51 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to use of the terminal device, and the like. Further, the memory 51 may include a high speed random access memory, and may also include a nonvolatile memory.
  • the technical solution of the embodiments of the present disclosure may be embodied in the form of a software product stored in a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network) The device or the like) performs all or part of the steps of the method described in the embodiments of the present disclosure.
  • the foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.
  • the method and device for cell radio resource allocation provided by the present disclosure can optimize resource allocation for each cell, not only effectively interfere with coordinated multi-point transmission user equipment, but also improve throughput of coordinated multi-point transmission user equipment; Improve the resource utilization of the community and greatly improve the overall performance of the community.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un dispositif d'attribution de ressources radio de cellules. Le procédé comporte les étapes consistant à: déterminer des cellules de coordination adjacentes à une cellule de desserte, les cellules de coordination générant une forte interférence sur un équipement d'utilisateur multipoint coordonné interagissant avec la cellule de desserte; calculer les priorités de ressources radio disponibles dans les cellules de coordination en fonction du niveau d'interférence des cellules de coordination sur l'équipement d'utilisateur multipoint coordonné, et de la somme pondérée de facteurs de coût de coordination correspondant aux ressources radio disponibles dans les cellules de coordination; permettre à la cellule de desserte d'attribuer la ressource radio disponible dotée de la plus haute priorité à l'équipement d'utilisateur multipoint coordonné; et permettre aux cellules de coordination de ne pas émettre de données sur l'emplacement de ressource correspondant à la ressource radio disponible. Au moyen du procédé de la présente invention, une attribution de ressources optimisée à des cellules est mise en œuvre, une coordination efficace de l'interférence sur l'équipement d'utilisateur multipoint coordonné est réalisée, le débit de l'équipement d'utilisateur multipoint coordonné est amélioré, le taux d'utilisation des ressources de cellules peut être amélioré, et les performances d'ensemble de la cellule sont considérablement améliorées.
PCT/CN2017/072053 2016-03-10 2017-01-22 Procédé et dispositif d'attribution de ressources radio de cellules WO2017152726A1 (fr)

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CN201610135540.X 2016-03-10
CN201610135540.XA CN107182058B (zh) 2016-03-10 2016-03-10 一种小区无线资源分配的方法和装置

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CN114885336B (zh) * 2022-06-09 2024-06-07 中国联合网络通信集团有限公司 干扰协调方法、装置及存储介质

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CN102932797A (zh) * 2011-08-09 2013-02-13 中兴通讯股份有限公司 Srs与pucch的协调传输方法及系统
WO2013029004A1 (fr) * 2011-08-25 2013-02-28 Qualcomm Incorporated Améliorations apportées à la liaison de raccordement pour des opérations multipoints coopératives (comp)
CN104936184A (zh) * 2014-03-21 2015-09-23 上海贝尔股份有限公司 基于协作多点在多个小区间进行资源分配的方法与设备

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CN101909321B (zh) * 2009-06-02 2013-04-24 中国移动通信集团公司 小区资源调度的方法、协作功能实体及系统
CN104796988B (zh) * 2014-01-17 2018-10-12 中国移动通信集团公司 一种资源分配方法及装置

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Publication number Priority date Publication date Assignee Title
CN102932797A (zh) * 2011-08-09 2013-02-13 中兴通讯股份有限公司 Srs与pucch的协调传输方法及系统
WO2013029004A1 (fr) * 2011-08-25 2013-02-28 Qualcomm Incorporated Améliorations apportées à la liaison de raccordement pour des opérations multipoints coopératives (comp)
CN104936184A (zh) * 2014-03-21 2015-09-23 上海贝尔股份有限公司 基于协作多点在多个小区间进行资源分配的方法与设备

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