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WO2021082888A1 - 一种资源分配方法、装置、通信系统以及存储介质 - Google Patents

一种资源分配方法、装置、通信系统以及存储介质 Download PDF

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Publication number
WO2021082888A1
WO2021082888A1 PCT/CN2020/120283 CN2020120283W WO2021082888A1 WO 2021082888 A1 WO2021082888 A1 WO 2021082888A1 CN 2020120283 W CN2020120283 W CN 2020120283W WO 2021082888 A1 WO2021082888 A1 WO 2021082888A1
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WO
WIPO (PCT)
Prior art keywords
air interface
relay node
predicted value
resource allocation
target terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/120283
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English (en)
French (fr)
Inventor
汪学锋
蓝庆华
许强
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP20883569.4A priority Critical patent/EP4044728A4/en
Publication of WO2021082888A1 publication Critical patent/WO2021082888A1/zh
Priority to US17/730,808 priority patent/US12413267B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15542—Selecting at relay station its transmit and receive resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

Definitions

  • This application relates to the field of communication technology, and in particular to a resource allocation method, device, communication system, and storage medium.
  • microwave backhaul and wireless relay backhaul are two important means.
  • the wireless backhaul of base stations is mainly still using microwave.
  • Microwave backhaul is mainly suitable for line of sight (LOS) scenarios, and can meet the point-to-point high-bandwidth wireless transmission requirements.
  • the donor cell configures the F1 frequency point as a service bearer frequency point for the wireless backhaul module (remote relay node, RRN) and user equipment (UE).
  • the relay base transceiver station establishes a backhaul link between the RRN and the donor base station.
  • the leaf base station cell configures the F2 frequency point as the service bearer frequency point of the UE, and the UE establishes an access link with the leaf base station through F2.
  • the existing technology is mainly implemented in a traditional single wide-beam network based on LTE, which has a great impact on the capacity of the host station. After adding leaf base stations, the user experience under the host base station decreases.
  • the embodiment of the application provides a resource configuration method, which is applied to a communication system based on massive MIMO, which can enhance the air interface resource reuse, and while improving the backhaul capability of the relay node RN, it reduces the impact on the host cell.
  • the first aspect of the present application provides a resource allocation method, which is applied to a communication system based on massive MIMO.
  • the communication system includes a donor base station DeNB and one or more relay nodes RN.
  • the method includes: The donor base station DeNB detects whether there is a target terminal in the donor cell, and the correlation between the target terminal and the radio air interface channel of the relay node RN is greater than the target threshold, and the correlation is used to indicate the relationship between the target terminal and the radio air interface channel of the relay node RN If it does not exist, the donor base station DeNB determines one or more beams for the relay node RN through resource space division multiplexing.
  • the one or more beams are the large-scale antenna arrays of the donor base station DeNB through air-port beamforming The formed beam, the one or more beams are used for the relay node RN to perform data back transmission.
  • the donor base station DeNB performs a sub-beam air interface resource scheduling method for the relay node RN and ordinary terminal equipment based on the massive MIMO technology, thereby enhancing the air interface resource reuse and improving the return of the relay node RN. While transmitting the capacity, it reduces the impact on the common terminal equipment in the host cell and improves the capacity of the entire system.
  • the method further includes: if the target terminal exists, the donor base station DeNB schedules The optimization algorithm determines the air interface resource allocation mode of the relay node RN and the target terminal, so that the total system capacity of the host cell meets the preset conditions.
  • the scheduling optimization algorithm with the optimal total system capacity can be used to reasonably schedule the relay node RN and the target terminal.
  • the total capacity of the system is optimized, and the system efficiency is the highest.
  • the donor base station DeNB determines the air interface resource allocation method for the relay node RN and the target terminal through a scheduling optimization algorithm , So that the total system capacity of the donor cell meets the preset conditions, including: the donor base station DeNB respectively determines the first predicted value and the second predicted value of the total system capacity, and the first predicted value is the total system capacity corresponding to the first air interface resource allocation method. The second predicted value is the total system capacity corresponding to the second air interface resource allocation method.
  • the relay node RN and the target terminal allocate the air interface resources of the same beam according to a preset ratio.
  • the air interface resources include spectrum resources and Power resources, such as physical resource block PRB resources.
  • the relay node RN and the target terminal allocate the air interface resources of the same beam in order of priority, where the priority of the relay node RN is higher than the target terminal;
  • the first predicted value and the second predicted value determine the air interface resource allocation mode of the relay node RN and the target terminal.
  • the donor base station DeNB determines the relay node RN according to the first predicted value and the second predicted value.
  • the air interface resource allocation method with the target terminal includes: the donor base station DeNB judges whether the first predicted value is greater than the second predicted value; if the first predicted value is greater than or equal to the second predicted value, the air interface of the relay node RN and the target terminal is determined
  • the resource allocation method is the first air interface resource allocation method; if the first predicted value is less than the second predicted value, it is determined that the air interface resource allocation method of the relay node RN and the target terminal is the second air interface resource allocation method.
  • the total system capacity is the cell capacity of the host cell and the relay The sum of the cell capacity corresponding to the node RN.
  • a second aspect of the present application provides a resource allocation device, including: a detection module for detecting whether there is a target terminal in the donor cell, the correlation between the target terminal and the radio air interface channel of the relay node RN is greater than the target threshold, and the correlation is used To indicate the degree of channel interference between the wireless air interface channel of the target terminal and the relay node RN; the determining module is used to determine the relay node RN as the relay through the resource space division multiplexing when the detection module detects that the target terminal does not exist
  • the node RN determines one or more beams, the one or more beams are beams formed by the large-scale antenna array of the donor base station DeNB through air interface beamforming, and the one or more beams are used for the relay node RN to perform data back transmission.
  • the determining module is further configured to determine the relay node RN and the target terminal through a scheduling optimization algorithm when the detection module detects the presence of the target terminal The method of resource allocation in order to make the total system capacity of the donor cell meet the preset conditions.
  • the determining module is configured to determine the total capacity of the system when the detection module detects the presence of the target terminal.
  • the first predicted value and the second predicted value the first predicted value is the total system capacity corresponding to the first air interface resource allocation method
  • the second predicted value is the total system capacity corresponding to the second air interface resource allocation method
  • the first air interface resource allocation method The intermediate relay node RN and the target terminal allocate the air interface resources of the same beam according to a preset ratio.
  • the relay node RN and the target terminal allocate the air interface resources of the same beam in order of priority, where the relay node RN The priority of RN is higher than the target terminal; the resource allocation mode of the relay node RN is determined according to the first predicted value and the second predicted value; the air interface of the relay node RN and the target terminal is determined according to the first predicted value and the second predicted value Resource allocation method.
  • the determining module is configured to determine whether the first predicted value is greater than the second predicted value; If the predicted value is greater than or equal to the second predicted value, it is determined that the resource allocation mode of the relay node RN and the target terminal is the first air interface resource allocation mode; if the first predicted value is less than the second predicted value, the relay node RN and the target are determined
  • the air interface resource allocation method of the terminal is the second air interface resource allocation method.
  • the total system capacity is the cell capacity of the host cell and the relay The sum of the cell capacity corresponding to the node RN.
  • a third aspect of the present application provides a network device, which includes a processor and a memory.
  • the memory is used to store computer-readable instructions (or referred to as computer programs), and the processor is used to read the computer-readable instructions to implement the foregoing aspects related to the network device and the method provided by any implementation manner thereof.
  • the network device further includes a transceiver for receiving and sending data.
  • the fourth aspect of the present application provides a computer storage medium, which may be non-volatile.
  • the computer storage medium stores computer readable instructions, and when the computer readable instructions are executed by a processor, the first aspect or the method in any possible implementation manner of the first aspect is implemented.
  • the embodiment of the application adopts a resource configuration method, based on the massive MIMO technology, performs a sub-beam air interface resource scheduling method for the relay node RN and ordinary terminal equipment, thereby enhancing the air interface resource reuse degree, and improving the relay node RN At the same time as the backhaul capability, it reduces the impact on the common terminal equipment in the host cell and improves the capacity of the entire system.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of an embodiment of a resource configuration method provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another embodiment of a resource configuration method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an embodiment in which the donor base station determines the air interface resource allocation mode of the relay node RN and the target terminal through a scheduling optimization algorithm according to an embodiment of the present application;
  • FIG. 5 is a schematic structural diagram of a resource configuration device provided in an embodiment of the present application.
  • Fig. 6 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the naming or numbering of steps appearing in this application does not mean that the steps in the method flow must be executed in the time/logical sequence indicated by the naming or numbering.
  • the named or numbered process steps can be implemented according to the The technical purpose changes the execution order, as long as the same or similar technical effects can be achieved.
  • the division of modules presented in this application is a logical division. In actual applications, there may be other divisions. For example, multiple modules can be combined or integrated in another system, or some features can be ignored
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, and the indirect coupling or communication connection between the modules may be electrical or other similar forms. There are no restrictions in the application.
  • modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed to multiple circuit modules, and some or all of them may be selected according to actual needs. Module to achieve the purpose of this application program.
  • the embodiment of the application provides a resource configuration method.
  • the donor base station DeNB based on massive MIMO technology performs sub-beam resource scheduling on the relay node RN and ordinary terminal equipment, thereby enhancing the air interface resource reuse degree and improving the relay base station. At the same time, it reduces the impact on common terminal equipment in the host cell and improves the capacity of the entire system.
  • the embodiment of the present application also provides a corresponding resource configuration device. Detailed descriptions are given below.
  • the embodiment of the present application first provides a schematic diagram of a communication system architecture, as shown in FIG. 1.
  • the communication system provided by the embodiment of the present application is a communication system based on massive MIMO, and the communication system includes: a donor base station DeNB101, a relay node RN102, and a terminal device 103.
  • the donor base station 101 may also be connected to the core network.
  • the donor base station 101 may also communicate with an Internet protocol (IP) network, for example, the Internet (Internet), a private IP network, or other data networks.
  • IP Internet protocol
  • the donor base station 101 has a relay function, and supports the access of the relay nodes 102 and common terminal devices 103 within the coverage area.
  • the donor base station 101 in the embodiment of the present application may be an evolved node B (evolved node B, eNB or eNodeB) in an LTE system or a wireless access device in a 5G network. It can also be a satellite base station in a satellite communication system.
  • both the donor base station 101 and the relay base station 102 support massive multiple-input multiple-output (massive multiple-input multiple-output, massive MIMO) technology, and the coverage area of the donor base station 101 is called the donor cell, and the donor base station 101 It is equipped with a massive MIMO antenna array.
  • the array size of the massive MIMO antenna array configured by the donor base station 101 can be 8T8R to 32T32R.
  • the array size of the massive MIMO antenna array can also be a higher order antenna array such as 64T64R and 128T128R.
  • the relay node 102 includes two parts: a wireless backhaul module (remote relay node, RRN) and a leaf base station (relay base transmitter station, ReBTS).
  • the RRN accesses the donor base station DeNB through wireless signals and establishes an air interface bearer.
  • the leaf base station ReBTS provides access to the terminal equipment in the coverage area, and the transmission of the leaf base station ReBTS is provided by the RRN.
  • a backhaul link is established between the donor base station 101 and the relay node 102 to realize the wireless backhaul function and realize the service backhaul of the relay base station.
  • the donor base station 101 may correspond to one relay node 102 or may correspond to multiple relay nodes 102, which is not limited in the embodiment of the present application.
  • two relay nodes 102 are shown, that is, two relay nodes 102 are deployed in the donor cell of the donor base station 101.
  • the donor base station 101 may also provide wireless access to one or more terminal devices 103 in the donor cell.
  • the embodiment of the present application also does not specifically limit the number of terminal devices 103 in the donor cell. It can be understood that FIG. 1 is only an example and should not be construed as a limitation to the application.
  • the terminal device 103 involved in this application may refer to user equipment UE, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user Agent or user device.
  • the terminal device 103 can access the network through an air interface and initiate calls, surf the Internet and other services, and can be a mobile device that supports 5G new radio (NR, new radio).
  • NR new radio
  • the terminal device 103 can be a mobile phone, a tablet computer, a portable notebook computer, a virtual ⁇ hybrid ⁇ augmented reality device, a navigation device, a ground base station (e.g., eNB and gNB), a ground station (GS), and a session start Protocol (Session Initiation Protocol, SIP) phone, wireless local loop (Wireless Local Loop, WLL) station, personal digital assistant (PDA), handheld device with communication function, computing device or other connected to wireless modem Processing equipment, in-vehicle equipment, wearable equipment, terminal equipment in 5G network, future evolution of public land mobile communication network (Public Land Mobile Network, PLMN) or terminal equipment in other future communication systems, etc.
  • a ground base station e.g., eNB and gNB
  • GS ground station
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA personal digital assistant
  • handheld device with communication function computing device or other connected to wireless modem Processing equipment, in-vehicle
  • FIG. 2 is a schematic diagram of an embodiment of a resource configuration method provided by an embodiment of the application, and the resource configuration method is applied to the communication system described in FIG. 1.
  • an embodiment of the resource configuration method provided by the embodiment of the present application may include:
  • the donor base station DeNB detects whether there is a target terminal in the donor cell, and the correlation between the target terminal and the radio air interface channel of the relay node RN is greater than the target threshold, and the correlation is used to indicate the radio air interface channel of the target terminal and the relay node RN The degree of channel interference between.
  • the donor cell corresponding to the donor base station DeNB is a massive MIMO cell, and one or more relay nodes RN are deployed in the donor cell.
  • the donor base station DeNB also provides wireless access communication services for one or more terminal devices in the donor cell.
  • the relay node RN in the embodiment of the present application may refer to any one of one or more relay nodes RN included in the donor cell, and the target terminal in the embodiment of the present application may refer to one or more relay nodes included in the host cell.
  • the relay node RN can be used as a special terminal device to access the donor cell.
  • the donor base station DeNB can identify the relay node RN and ordinary terminal equipment, thereby It is distinguished from terminal equipment.
  • the embodiment of the present application does not limit the specific manner in which the donor base station DeNB distinguishes the relay node RN from the terminal device.
  • the donor base station DeNB after identifying the relay node RN, the donor base station DeNB first detects whether there is a target terminal in the donor cell, and the correlation between the target terminal and the wireless air interface channel of the target relay node RN is greater than the target threshold.
  • the correlation of the wireless air interface channels of two terminal devices or the correlation of the wireless air interface channels of the terminal device and the relay node RN is used to indicate the degree of channel interference of the wireless air interface channels between the two.
  • the air interface resources include spectrum resources and power resources, for example, physical resource block (PRB) resources.
  • PRB physical resource block
  • the method for the donor base station DeNB to detect whether there is a target terminal in the donor cell may be after identifying the relay node RN, polling all terminal devices in the donor cell, so as to obtain information from all terminals The device detects the target terminal whose RN correlation of the relay node is greater than the target threshold.
  • the embodiment of the present application does not limit the specific manner in which the donor base station DeNB detects the correlation between the radio air interface channel of the relay node RN and the terminal device.
  • the donor base station DeNB determines one or more beams for the relay node RN through resource space division multiplexing, and the one or more beams are formed by the large-scale antenna array of the donor base station DeNB through air interface beamforming Beam, one or more beams are used by the relay node RN for data back transmission.
  • the donor cell in the embodiment of the present application is a massive MIMO cell, and a large-scale array antenna technology is adopted to support multi-stream space division multiplexing of channel resources.
  • the donor base station DeNB may adopt a high-level MIMO technology such as 8T8R, 16T16R, 32T32R, or 64T64R.
  • the donor base station DeNB when the donor base station DeNB detects that there is no target terminal in the donor cell whose correlation with the relay node RN is greater than the target threshold, the donor base station DeNB can use the resource space division multiplexing method to be the relay node RN Allocate one or more beams for data back transmission.
  • the one or more beams are beams formed by the large-scale antenna array of the donor base station DeNB through air-interface beamforming, that is, the relay node RN can occupy one or more beams separately, Use first-class or multi-stream space division multiplexing for data return.
  • the air interface resource scheduling mode of sub-beaming is performed on the relay node RN and the ordinary terminal equipment through the massive MIMO technology, thereby enhancing the air interface resource reuse degree and improving the backhaul capability of the relay node RN at the same time , Reduce the impact on common terminal equipment in the host cell, and improve the capacity of the entire system.
  • FIG. 3 is a schematic diagram of another embodiment of a resource configuration method provided by an embodiment of the application.
  • another embodiment of the resource configuration method provided by the embodiment of the present application may include:
  • the donor base station DeNB detects whether there is a target terminal in the donor cell, and the correlation between the target terminal and the radio air interface channel of the relay node RN meets the target threshold, and the correlation is used to indicate the radio air interface channel of the target terminal and the relay node RN The degree of channel interference.
  • the donor base station DeNB determines one or more beams for the relay node RN through resource space division multiplexing, and the one or more beams are the large-scale antenna arrays of the donor base station DeNB through air interface beamforming.
  • the formed beam, the one or more beams are used for the relay node RN to perform data back transmission.
  • the donor base station DeNB uses a scheduling optimization algorithm to determine the air interface resource allocation mode of the relay node RN and the target terminal, so that the total system capacity of the donor cell meets a preset condition.
  • the donor base station DeNB when the donor base station DeNB detects that there is a target terminal, the donor base station DeNB uses a scheduling optimization algorithm to determine the air interface resource allocation mode of the relay node RN and the target terminal, so that the total system capacity of the donor cell meets the preset condition.
  • the preset condition may mean that the total system capacity of the host cell is optimal
  • the scheduling optimization algorithm refers to a series of cell performance optimization algorithms used to calculate the total system capacity of the host cell to be optimal.
  • the donor base station DeNB can use the following scheduling optimization algorithm flow to determine the air interface resource allocation method of the relay node RN and the target terminal, so that the donor base station DeNB uses the air interface resource allocation method to the relay node RN Perform resource scheduling with the target terminal, and finally make the total system capacity of the donor cell reach the optimum.
  • Fig. 4 is a schematic diagram of an embodiment in which the donor base station DeNB determines the air interface resource allocation mode of the relay node RN and the target terminal through a scheduling optimization algorithm according to an embodiment of the application, including:
  • the donor base station DeNB respectively determines a first predicted value and a second predicted value of the total system capacity, the first predicted value is the total system capacity corresponding to the first air interface resource allocation method, and the second predicted value is corresponding to the second air interface resource allocation method
  • the relay node RN and the target terminal allocate the air interface resources of the same beam according to a preset ratio.
  • the relay node RN and the target terminal allocate the same beam in the order of priority. The priority of the relay node RN is higher than that of the target terminal.
  • the relay node RN and the target terminal when the donor base station DeNB detects that there are target terminals in the donor cell whose correlation with the relay node RN is greater than the target threshold, the relay node RN and the target terminal cannot occupy the same beam separately, and need to share the same beam.
  • the air interface resource corresponding to the beam Taking PRB resources as an example, there is a corresponding relationship between the air interface bandwidth of the beam and the number of PRB resources. After the size of the spectrum bandwidth is determined, the number of PRB resources is also determined. For example, when the system bandwidth is 1.4MHz, the number of PRBs in the beam is 6. Therefore, the relay node RN and the target terminal need to allocate and use the 6 PRB resources according to certain rules, and the total number of PRB resources allocated and used by the relay node RN and the target terminal cannot exceed 6.
  • the relay node RN and the target terminal allocate the air interface resources of the same beam according to a preset ratio. For example, when the preset ratio is 50%, the air interface resources such as PRB in the beam are equally divided into two parts, one part is used for random access of the target terminal, and the other part is used for data transmission of the relay node RN.
  • the relay node RN and the target terminal are both in a busy state, the relay node RN and the target terminal can only use the air interface resources such as PRB allocated according to the preset ratio.
  • the relay node RN can use the air interface resources such as the PRB of the target terminal.
  • the relay node RN and the target terminal allocate air interface resources such as PRBs of the same beam in order of priority, and the priority of the relay node RN is higher than the target terminal. That is, the donor base station DeNB first meets the air interface resource requirements such as PRB of the relay node RN, and then allocates the remaining air interface resources such as PRB in the beam to the target terminal for use.
  • the donor base station DeNB first allocates the required 5 PRBs to the relay node RN, and then The remaining one is allocated to the target terminal for use.
  • the total system capacity refers to the sum of the cell capacity of the donor cell and the cell capacity of the cell corresponding to the relay node RN, where the cell capacity of the cell corresponding to the relay node RN is equivalent to that of the relay node RN's backhaul performance.
  • the donor base station DeNB when the donor base station DeNB detects that there are target terminals in the donor cell whose radio air interface channel correlation with the relay node RN is greater than the target threshold, the donor base station DeNB respectively determines the first predicted value and the second predicted value of the total system capacity. Predictive value.
  • the first predicted value is the total system capacity corresponding to the first air interface resource allocation method
  • the second predicted value is the total system capacity corresponding to the second air interface resource allocation method
  • the relay node RN and the target terminal in the first air interface resource allocation method Allocate air interface resources such as PRB of the same beam according to a preset ratio.
  • the relay node RN and the target terminal allocate air interface resources such as PRB of the same beam in order of priority, and the priority of the relay node RN is higher than the target terminal .
  • the donor base station DeNB determines the air interface resource allocation mode of the relay node RN according to the first predicted value and the second predicted value.
  • the air interface resource allocation mode of the relay node RN is determined according to the first predicted value and the second predicted value.
  • the donor base station DeNB determines the air interface resource allocation mode of the relay node RN according to the magnitude of the first predicted value and the second predicted value.
  • the first air interface resource allocation method is adopted to perform air interface resource scheduling for the relay node RN.
  • the second air interface resource allocation method is adopted to perform the scheduling of air interface resources such as PRB for the relay node RN.
  • the relay node RN and the ordinary terminal equipment when the correlation between the relay node RN and the ordinary terminal equipment is low, the relay node RN and the ordinary terminal equipment may be subjected to sub-beam air interface resource scheduling based on massive MIMO technology, thereby enhancing Air interface resource reuse, while improving the backhaul capability of the relay node RN, reduces the impact on the ordinary terminal equipment in the host cell, and increases the capacity of the entire system.
  • the resource scheduling method with the optimal total system capacity can be used to schedule the air interface resources, so that the total system capacity is the highest.
  • the resource configuration device 50 provided in the embodiment of the present application may include:
  • the detection module 501 is used to detect whether there is a target terminal in the host cell.
  • the correlation between the wireless air interface channel of the target terminal and the relay node RN is greater than the target threshold, and the correlation is used to indicate the wireless air interface channel of the target terminal and the relay node RN The degree of channel interference.
  • the determining module 502 is configured to determine that the relay node RN allocates one or more beams to the relay node RN through resource space division multiplexing when the detection module 501 detects that there is no target terminal, and the one or more beams are allocated to the relay node RN.
  • a beam is a beam formed by the large-scale antenna array of the donor base station DeNB through air interface beamforming, and the one or more beams are used for the relay node RN to perform data back transmission.
  • the resource configuration device uses massive MIMO technology to perform sub-beam air interface resource scheduling on the relay node RN and ordinary terminal equipment, thereby enhancing the air interface resource reuse and improving the return of the relay node RN. While transmitting the capacity, it reduces the impact on the common terminal equipment in the host cell and improves the capacity of the entire system.
  • the determining module 502 is further configured to determine the resource allocation mode of the relay node RN and the target terminal through a scheduling optimization algorithm when the detection module 501 detects that there is a target terminal, so that all The total system capacity of the massive MIMO cell satisfies preset conditions.
  • the determining module 502 is configured to determine the first predicted value and the second predicted value of the total system capacity when the detecting module 501 detects that the target terminal exists, and the first predicted value is The total system capacity corresponding to the first air interface resource allocation method, and the second predicted value is the total system capacity corresponding to the second air interface resource allocation method.
  • the relay node RN and the target terminal allocate the same beam according to a preset ratio
  • the relay node RN and the target terminal allocate the air interface resources of the same beam in order of priority, and the priority of the relay node RN is higher than the target terminal; according to the first predicted value and the second predicted value Determine the air interface resource allocation mode of the relay node RN.
  • the determining module 502 is configured to determine whether the first predicted value is greater than the second predicted value; if the first predicted value is greater than or equal to the second predicted value, determine the resource allocation mode of the relay node RN It is the first air interface resource allocation method; if the first predicted value is less than the second predicted value, it is determined that the resource allocation method of the relay node RN is the second air interface resource allocation method.
  • the total system capacity is the sum of the cell capacity of the donor cell and the cell capacity corresponding to the relay node RN.
  • an embodiment of the present application also provides a network device 60.
  • the network device 60 includes a processor 610, a memory 620, and a transceiver 630.
  • the memory 620 stores instructions or programs, and the processor 610 is used to execute Instructions or programs stored in the memory 620.
  • the processor 610 is configured to execute the operations performed by the detection module 501 and the determination module 502 in the foregoing embodiment.
  • the network device 60 in the embodiment of the present application is a device corresponding to the donor base station DeNB in the resource allocation method of the embodiment of the present application, and the operation and/or function of each module in the network device 60 is to implement the operations and/or functions of each module in the network device 60 respectively.
  • the corresponding process of each method in 4 will not be repeated here.
  • the embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored.
  • the program When the program is executed by a processor, it can realize the process related to the donor base station DeNB in the resource allocation method provided in the foregoing method embodiment.
  • the embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored.
  • the program When the program is executed by a processor, it can realize the process related to the donor base station DeNB in the resource allocation method provided in the foregoing method embodiment.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (such as infrared, wireless, microwave, etc.)).
  • the computer-readable storage medium It can be any usable medium that can be stored by a computer or a data storage device such as a server or data center integrated with one or more usable media.
  • the usable medium can be a magnetic medium, (for example, a floppy disk, a hard disk, a magnetic tape), and an optical medium. (For example, DVD), or semiconductor media (for example, Solid State Disk (SSD)), etc.
  • the program can be stored in a computer-readable storage medium, and the storage medium can include: ROM, RAM, magnetic disk or CD, etc.

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Abstract

本申请公开了一种资源分配方法，该方法应用于一种基于大规模MIMO的通信系统，该方法包括：宿主基站检测宿主小区内是否存在目标终端，目标终端与中继节点的无线空口信道的相关性大于目标阈值；若不存在，则宿主基站通过资源空分复用为中继节点RN确定用于进行数据回传的一个或多个波束，该一个或多个波束是宿主基站的大规模天线阵列通过空口波束成型所形成的波束。本申请实施例还提供相应的资源分配装置。本申请技术方案基于大规模MIMO技术对中继节点和普通的终端设备进行分波束的空口资源调度，从而增强空口资源复用度，在提升中继节点的回传能力的同时，降低对普通的终端设备的影响，提升整个系统的容量。

Description

一种资源分配方法、装置、通信系统以及存储介质
本申请要求于2019年10月29日提交中国专利局、申请号为201911039327.9、申请名称为“一种资源分配方法、装置、通信系统以及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，具体涉及一种资源分配方法、装置、通信系统以及存储介质。
背景技术
随着无线基站部署不断增多，有线传输无法建设的地区和不具备建设条件的地区，会采用无线回传的方式进行传输建设。其中，微波回传和无线中继(relay)回传是两种重要的手段。当前基站无线回传主要还在应用微波。微波回传主要适于视线传输(line of sight,LOS)场景，可以满足点到点的大带宽无线传输要求。然而在非视线传输(none-line of sight，NLOS)场景下，各种遮挡对微波回传信号衰减性能影响很大，导致宿主基站(donor eNB,DeNB)和中继节点(relay node，NR)之间无法建立通讯链路，因此需要新的NLOS relay回传技术作为叶子基站的传输承载技术。当前无线relay回传的基站网络建站组网架构中，宿主小区配置F1频点作为无线回传模块(remote relay node，RRN)和用户设备(user equipment，UE)的业务承载频点。叶子基站(relay base transceiver station，ReBTS)通过RRN与宿主基站之间建立回传链路，叶子基站小区配置F2频点作为UE的业务承载频点，UE通过F2和叶子基站建立接入链路。
目前该架构下，现有技术主要是基于LTE的传统单个宽波束网络下实现，对宿主站容量影响大，增加叶子基站后，宿主基站下的用户体验下降。
发明内容
本申请实施例提供一种资源配置方法，该方法应用于一种基于大规模MIMO的通信系统，能够增强空口资源复用度，在提升中继节点RN的回传能力的同时，降低对宿主小区内普通的终端设备的影响，提升整个系统的容量。
有鉴于此，本申请第一方面提供一种资源分配方法，方法应用于一种基于大规模MIMO的通信系统，该通信系统包括宿主基站DeNB和一个或多个中继节点RN，该方法包括：宿主基站DeNB检测宿主小区内是否存在目标终端，该目标终端与中继节点RN的无线空口信道的相关性大于目标阈值，该相关性用于指示目标终端和中继节点RN的无线空口信道之间的信道干扰程度；若不存在，则宿主基站DeNB通过资源空分复用为中继节点RN确定一个或多个波束，该一个或多个波束是宿主基站DeNB的大规模天线阵列通过空口波束成型所形成的波束，该一个或多个波束用于所述中继节点RN进行数据回传。
由以上第一方面可知，宿主基站DeNB基于大规模MIMO技术对中继节点RN和普通的终端设备进行分波束的空口资源调度方式，从而增强空口资源复用度，在提升中继节点RN的回 传能力的同时，降低对宿主小区内普通的终端设备的影响，提升整个系统的容量。
可选地，结合上述第一方面，在第一方面第一种可能的实现方式中，宿主基站DeNB检测宿主小区内是否存在目标终端之后，还包括：若存在目标终端，则宿主基站DeNB通过调度优化算法确定中继节点RN和目标终端的空口资源分配方式，以使宿主小区的系统总容量满足预置条件。
由以上第二方面可知，当存在与中继节点RN的无线空口信道的相关性较大的目标终端时，可以采用系统总容量最优的调度优化算法，合理调度中继节点RN和目标终端，使得系统的总容量达到最优，系统效率最高。
可选地，结合上述第一方面第一种可能的实现方式，在第一方面第二种可能的实现方式中，宿主基站DeNB通过调度优化算法确定中继节点RN和目标终端的空口资源分配方式，以使宿主小区的系统总容量满足预置条件，包括：宿主基站DeNB分别确定系统总容量的第一预测值和第二预测值，第一预测值为第一空口资源分配方式对应的系统总容量，第二预测值为第二空口资源分配方式对应的系统总容量，第一空口资源分配方式中中继节点RN和目标终端按照预置比例分配同一波束的空口资源，空口资源包括频谱资源和功率资源等，例如物理资源块PRB资源，第二空口分配方式中中继节点RN和目标终端按照优先级顺序分配同一波束的空口资源，其中，中继节点RN的优先级高于目标终端；根据第一预测值和第二预测值确定中继节点RN和目标终端的空口资源分配方式。
可选地，结合上述第一方面第二种可能的实现方式，在第一方面第三种可能的实现方式中，宿主基站DeNB根据第一预测值和所述第二预测值确定中继节点RN和目标终端的空口资源分配方式，包括：宿主基站DeNB判断第一预测值是否大于第二预测值；若第一预测值大于或等于第二预测值，则确定中继节点RN和目标终端的空口资源分配方式为第一空口资源分配方式；若第一预测值小于第二预测值，则确定中继节点RN和目标终端的空口资源分配方式为第二空口资源分配方式。
可选地，结合上述第一方面第一种至第三种中任意一种可能的实现方式，在第一方面第四种可能的实现方式中，系统总容量为宿主小区的小区容量与中继节点RN对应的小区容量之和。
本申请第二方面提供一种资源分配装置，包括：检测模块，用于检测宿主小区内是否存在目标终端，目标终端与中继节点RN的无线空口信道的相关性大于目标阈值，该相关性用于指示目标终端和中继节点RN的无线空口信道之间的信道干扰程度；确定模块，用于在检测模块检测不存在目标终端时，通过资源空分复用为中继节点RN确定为中继节点RN确定一个或多个波束，该一个或多个波束是宿主基站DeNB的大规模天线阵列通过空口波束成型所形成的波束，该一个或多个波束用于中继节点RN进行数据回传。
可选地，结合上述第二方面，在第二方面第一种可能的实现方式中，确定模块，还用于在检测模块检测存在目标终端时，通过调度优化算法确定中继节点RN和目标终端的资源分配方式，以使宿主小区的系统总容量满足预置条件。
可选地，结合上述第二方面第一种可能的实现方式，在第二方面第二种可能的实现方式中，确定模块，用于在检测模块检测存在目标终端时，分别确定系统总容量的第一预测 值和第二预测值，第一预测值为第一空口资源分配方式对应的系统总容量，第二预测值为第二空口资源分配方式对应的系统总容量，第一空口资源分配方式中中继节点RN和目标终端按照预置比例分配同一波束的空口资源，第二空口资源分配方式中中继节点RN和目标终端按照优先级顺序分配同一波束的空口资源，其中，中继节点RN的优先级高于目标终端；根据第一预测值和第二预测值确定中继节点RN的资源分配方式；根据第一预测值和第二预测值确定所述中继节点RN和目标终端的空口资源分配方式。
可选地，结合上述第二方面第二种可能的实现方式，在第二方面第三种可能的实现方式中，确定模块，用于判断第一预测值是否大于第二预测值；若第一预测值大于或等于第二预测值，则确定中继节点RN和目标终端的资源分配方式为第一空口资源分配方式；若第一预测值小于第二预测值，则确定中继节点RN和目标终端的空口资源分配方式为第二空口资源分配方式。
可选地，结合上述第二方面第一种至第三种中任意一种可能的实现方式，在第二方面第四种可能的实现方式中，系统总容量为宿主小区的小区容量与中继节点RN对应的小区容量之和。
本申请第三方面提供一种网络设备，该网络设备包括处理器和存储器。存储器用于存储计算机可读指令(或者称之为计算机程序)，处理器用于读取所述计算机可读指令以实现前述有关网络设备的方面及其任意实现方式提供的方法。
在一些实现方式下，该网络设备还包括收发器，用于接收和发送数据。
本申请第四方面提供一种计算机存储介质，该计算机存储介质可以是非易失性的。该计算机存储介质中存储有计算机可读指令，当该计算机可读指令被处理器执行时实现第一方面或第一方面的任一可能的实现方式中的方法。
本申请实施例采用一种资源配置方法，基于大规模MIMO技术对中继节点RN和普通的终端设备进行分波束的空口资源调度方式，从而增强空口资源复用度，在提升中继节点RN的回传能力的同时，降低对宿主小区内普通的终端设备的影响，提升整个系统的容量。
附图说明
图1是本申请实施例提供的一种通信系统架构示意图；
图2是本申请实施例提供的资源配置方法的一个实施例示意图；
图3是本申请实施例提供的资源配置方法的另一个实施例示意图；
图4是本申请实施例提供的宿主基站通过调度优化算法确定中继节点RN和目标终端的空口资源分配方式的一个实施例示意图；
图5是本申请实施例中提供的资源配置装置的结构示意图；
图6是本申请实施例提供的一种网络设备的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，下面结合附图，对本申请的实施例进行描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施 例。本领域普通技术人员可知，随着新应用场景的出现，本发明实施例提供的技术方案对于类似的技术问题，同样适用。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或模块的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或模块，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或模块。在本申请中出现的对步骤进行的命名或者编号，并不意味着必须按照命名或者编号所指示的时间/逻辑先后顺序执行方法流程中的步骤，已经命名或者编号的流程步骤可以根据要实现的技术目的变更执行次序，只要能达到相同或者相类似的技术效果即可。本申请中所出现的模块的划分，是一种逻辑上的划分，实际应用中实现时可以有另外的划分方式，例如多个模块可以结合成或集成在另一个系统中，或一些特征可以忽略，或不执行，另外，所显示的或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，模块之间的间接耦合或通信连接可以是电性或其他类似的形式，本申请中均不作限定。并且，作为分离部件说明的模块或子模块可以是也可以不是物理上的分离，可以是也可以不是物理模块，或者可以分布到多个电路模块中，可以根据实际的需要选择其中的部分或全部模块来实现本申请方案的目的。
本申请实施例提供一种资源配置方法，基于大规模MIMO技术的宿主基站DeNB对中继节点RN和普通的终端设备进行分波束的资源调度，从而增强空口资源复用度，在提升中继基站的回传能力的同时，降低对宿主小区内普通的终端设备的影响，提升整个系统的容量。本申请实施例还提供相应的资源配置装置。以下分别进行详细说明。
本申请实施例首先提供一种通信系统架构示意图，如图1所示。
参阅图1，本申请实施例提供的通信系统为一种基于大规模MIMO的通信系统，该通信系统中包括：宿主基站DeNB101、中继节点RN102和终端设备103。当通信系统包括核心网时，该宿主基站101还可以和核心网相连。宿主基站101还可以与互联网协议(internet protocol，IP)网络进行通信，例如，因特网(Internet)，私有的IP网，或其他数据网络等。宿主基站101具备中继(relay)功能，支持覆盖范围内的中继节点102和普通的终端设备103的接入。本申请实施例中的宿主基站101可以是LTE系统中的演进型基站(evolved node B，eNB或eNodeB)或者5G网络中的无线接入设备。还可以是卫星通信系统中的卫星基站。本申请实施例中，宿主基站101和中继基站102均支持大规模多输入多输出(massive multiple-input multiple-output，massive MIMO)技术，宿主基站101的覆盖范围称为宿主小区，宿主基站101配置有大规模MIMO天线阵列。宿主基站101配置的大规模MIMO天线阵列的阵列大小可以是8T8R到32T32R，可选地，大规模MIMO天线阵列的阵列大小也可以是64T64R、128T128R等更高阶的天线阵列，本申请实施例对此不作限定。本申请实施例中，中继节点102包括无线回传模块(remote relay node，RRN)和叶子基站(relay base transceiver station，ReBTS)两个部分，RRN通过无线信号接入宿主基站DeNB并建立空口 承载，叶子基站ReBTS提供覆盖范围内的终端设备的接入，叶子基站ReBTS的传输由RRN提供。宿主基站101和中继节点102之间建立回传链路，用于实现无线回传功能，实现中继基站的业务回传。
需要说明的是，本申请实施例中的宿主小区内，宿主基站101可以对应于一个中继节点102，也可以对应于多个中继节点102，本申请实施例对此不作限定。如图1中的通信系统中，示出了2个中继节点102，即宿主基站101的宿主小区内部署了2个中继节点102。本申请实施例中，宿主基站101还可以为宿主小区内的一个或多个终端设备103提供无线接入。本申请实施例对宿主小区内终端设备103的数量也不作具体的限定。可以理解的是，图1仅为一个示例，不应理解为对本申请的限制。
本申请所涉及的终端设备103，可以指用户设备UE、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备103可以通过空口接入网络并发起呼叫，上网等业务，可以是支持5G新空口(NR，new radio)的移动设备。典型的，终端设备103可以是移动电话、平板电脑、便携式笔记本电脑、虚拟\混合\增强现实设备、导航设备、地面基站(例如：eNB和gNB)和地面站(ground station，GS)、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备、未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)或未来的其他通信系统中的终端设备等。
图2为本申请实施例所提供的资源配置方法的一个实施例示意图，该资源配置方法应用于图1所述的通信系统。
参阅图2，本申请实施例所提供的资源配置方法的一个实施例，可以包括：
201、宿主基站DeNB检测宿主小区内是否存在目标终端，该目标终端与中继节点RN的无线空口信道的相关性大于目标阈值，该相关性用于指示目标终端和中继节点RN的无线空口信道之间的信道干扰程度。
本申请实施例中，宿主基站DeNB对应的宿主小区为大规模MIMO小区，该宿主小区部署有一个或多个中继节点RN。宿主基站DeNB除了为该一个或多个中继节点RN提供无线接入，实现业务回传之外，还为宿主小区内的一个或多个终端设备提供无线接入的通信服务。
本申请实施例中中继节点RN可以是指宿主小区内包含的一个或多个中继节点RN中的任意一个，本申请实施例中的目标终端可以是指该宿主小区内包含的一个或多个终端中的一个或多个。本申请实施例中，中继节点RN可以作为特殊的终端设备接入到宿主小区内，在无线接入过程中，宿主基站DeNB能够对中继节点RN和普通的终端设备进行身份识别，从而将其与终端设备进行区分。本申请实施例对宿主基站DeNB区分中继节点RN和终端设备的具体方式不做限定。
本申请实施例中，宿主基站DeNB在识别出中继节点RN之后，首先检测宿主小区内是否存在目标终端，该目标终端与目标中继节点RN的无线空口信道的相关性大于目标阈值。本申请实施例中，两个终端设备的无线空口信道的相关性或者终端设备与中继节点RN的无线 空口信道的相关性用于指示两者之间的无线空口信道的信道干扰程度。当两个终端设备之间或者终端设备与中继节点RN之间的无线空口信道的相关性较小，即小于或等于预设的目标阈值时，可以认为其相互之间的信道干扰程度较小，因此两者均能单独占用一个波束，享受MIMO系统的空间复用增益。当两个终端设备之间或者终端设备与中继节点RN之间的相关性较大，即大于预设的目标阈值时，可以认为其相互之间的信道干扰程度较大，因此需要共享同一个波束内的空口资源，本申请实施例中，空口资源包括频谱资源和功率资源等，例如，物理资源块(physical resource block，PRB)资源。具体的，本申请实施例中，宿主基站DeNB检测宿主小区内是否存在目标终端的方式可以是在识别出中继节点RN之后，对宿主小区内的所有终端设备进行轮询，从而从所有的终端设备中检测出于中继节点RN相关性大于目标阈值的目标终端。
需要说明的是，本申请实施例对宿主基站DeNB检测中继节点RN和终端设备的无线空口信道的相关性的具体方式不做限定。
202、若不存在，则宿主基站DeNB通过资源空分复用为中继节点RN确定一个或多个波束，该一个或多个波束是宿主基站DeNB的大规模天线阵列通过空口波束成型所形成的波束，一个或多个波束用于中继节点RN进行数据回传。
本申请实施例中的宿主小区为大规模MIMO小区，采用大规模阵列天线技术，从而可以支持信道资源的多流空分复用。本申请实施例中，宿主基站DeNB可以采用如8T8R、16T16R、32T32R或64T64R等的高阶MIMO技术。当宿主小区内配置的发射天线数为m时，发送数据x1、x2、…xm，接收天线数为n时，接收到的数据为y1、y2、…ym，整个系统支持的空分复用的理论流数为min(m，n)。
本申请实施例中，当宿主基站DeNB检测宿主小区内不存在与中继节点RN的相关性大于目标阈值的目标终端时，宿主基站DeNB可以采用资源空分复用的方式，为中继节点RN分配一个或多个波束进行数据回传，该一个或多个波束是宿主基站DeNB的大规模天线阵列通过空口波束成型所形成的波束，即为中继节点RN能够单独占用一个或多个波束，使用一流或多流空分复用进行数据回传。
本申请实施例中，通过大规模MIMO技术对中继节点RN和普通的终端设备进行分波束的空口资源调度方式，从而增强空口资源复用度，在提升中继节点RN的回传能力的同时，降低对宿主小区内普通的终端设备的影响，提升整个系统的容量。
图3为本申请实施例所提供的资源配置方法的另一个实施例示意图。
参阅图3，本申请实施例所提供的资源配置方法的另一个实施例，可以包括：
301、宿主基站DeNB检测宿主小区内是否存在目标终端，该目标终端与中继节点RN的无线空口信道的相关性满足目标阈值，该相关性用于指示目标终端和中继节点RN的无线空口信道的信道干扰程度。
本申请实施例可以参阅图2中的步骤201进行理解，此处不再赘述。
302、若不存在，则宿主基站DeNB通过资源空分复用为所述中继节点RN确定一个或多个波束，该一个或多个波束是宿主基站DeNB的大规模天线阵列通过空口波束成型所形成的波束，该一个或多个波束用于中继节点RN进行数据回传。
本申请实施例可以参阅图2中的步骤202进行理解，此处不再赘述。
303、若宿主基站DeNB检测存在目标终端，则通过调度优化算法确定中继节点RN和目标终端的空口资源分配方式，以使宿主小区的系统总容量满足预置条件。
本申请实施例中，当宿主基站DeNB检测存在目标终端时，宿主基站DeNB采用调度优化算法确定中继节点RN和目标终端的空口资源分配方式，以使得宿主小区的系统总容量满足预置条件。本申请实施例中，该预置条件可以是指宿主小区的系统总容量达到最优，调度优化算法则是指用于计算出宿主小区的系统总容量达到最优的一系列小区性能优化算法。
具体地，本申请实施例中，宿主基站DeNB可以采用如下的调度优化算法的流程确定中继节点RN和目标终端的空口资源分配方式，使得宿主基站DeNB采用该空口资源分配方式对中继节点RN和目标终端进行资源调度，最终使得宿主小区的系统总容量能够达到最优。图4为本申请实施例提供的宿主基站DeNB通过调度优化算法确定中继节点RN和目标终端的空口资源分配方式的一个实施例示意图，包括：
3031、宿主基站DeNB分别确定系统总容量的第一预测值和第二预测值，第一预测值为第一空口资源分配方式对应的系统总容量，第二预测值为第二空口资源分配方式对应的系统总容量，第一空口资源分配方式中中继节点RN和目标终端按照预置比例分配同一波束的空口资源，第二资源分配方式中中继节点RN和目标终端按照优先级顺序分配同一波束的空口资源，中继节点RN的优先级高于目标终端。
本申请实施例中，当宿主基站DeNB检测宿主小区内存在与中继节点RN的相关性大于目标阈值的目标终端时，中继节点RN和目标终端均无法单独占用一个波束，需要共享使用同一个波束对应的空口资源。以PRB资源为例，波束的空口带宽与PRB资源数量存在对应关系，当频谱带宽的大小确定之后，PRB资源数量也确定了。例如，当系统带宽为1.4MHz时，波束内的PRB个数为6个。因此中继节点RN和目标终端需要按照一定的规则进行该6个PRB资源的分配使用，且中继节点RN和目标终端分配使用的PRB资源的总数目不能超过6个。
本申请实施例中，存在两种共享使用同一个波束对应的空口资源的方法，即第一空口资源分配方式和第二空口资源分配方式。第一空口资源分配方式中，中继节点RN和目标终端按照预置比例分配同一波束的空口资源。例如，预置比例为50％时，波束内的PRB等空口资源被平均分为两份，一份用于目标终端进行随机接入，另一份用于中继节点RN的数据传输。当中继节点RN和目标终端都处于忙碌状态时，中继节点RN和目标终端只能使用按照该预置比例所分配的PRB等空口资源，当中继节点RN处于忙碌状态，而目标终端处于空闲状态，中继节点RN才能使用目标终端的PRB等空口资源。第二空口资源分配方式中，中继节点RN和目标终端按照优先级顺序分配同一波束的PRB等空口资源，中继节点RN的优先级高于目标终端。即宿主基站DeNB首先满足中继节点RN的PRB等空口资源需求，然后再将波束内剩余的PRB等空口资源分配给目标终端使用。以PRB资源为例，当波束内的PRB个数为6个，中继节点RN和目标终端均需要5个PRB，宿主基站DeNB首先为中继节点RN分配其所需要的5个PRB，再将剩余的一个分配给目标终端进行使用。
本申请实施例中，系统总容量是指所述宿主小区的小区容量与中继节点RN对应的小区的小区容量之和，其中，中继节点RN对应的小区的小区容量等效于中继节点RN的回传性能。
本申请实施例中，当宿主基站DeNB检测宿主小区内存在与中继节点RN的无线空口信道相关性大于目标阈值的目标终端时，宿主基站DeNB分别确定系统总容量的第一预测值和第二预测值。其中，第一预测值为第一空口资源分配方式对应的系统总容量，第二预测值为第二空口资源分配方式对应的系统总容量，第一空口资源分配方式中中继节点RN和目标终端按照预置比例分配同一波束的PRB等空口资源，第二资源分配方式中中继节点RN和目标终端按照优先级顺序分配同一波束的PRB等空口资源，中继节点RN的优先级高于目标终端。
3032、宿主基站DeNB根据第一预测值和第二预测值确定中继节点RN的空口资源分配方式。
本申请实施例中，宿主基站DeNB在分别确定第一预测值和第二预测值之后，根据第一预测值和第二预测值确定中继节点RN的空口资源分配方式。
具体的，宿主基站DeNB根据第一预测值和第二预测值的大小确定中继节点RN的空口资源分配方式。当第一预测值大于或等于第二预测值时，则采用第一空口资源分配方式为中继节点RN进行空口资源的调度。当第一预测值小于第二预测值时，则采用第二空口资源分配方式为中继节点RN进行PRB等空口资源的调度。
本申请实施例中，当中继节点RN和普通的终端设备之间的相关性较低时，可以基于大规模MIMO技术对中继节点RN和普通的终端设备进行分波束的空口资源调度，从而增强空口资源复用度，在提升中继节点RN的回传能力的同时，降低对宿主小区内普通的终端设备的影响，提升整个系统的容量，与此同时，当中继节点RN和普通的终端设备之间的相关性较高时，可以采用系统总容量最优的资源调度方式进行空口资源的调度，从而使得系统总容量最高。
上述对本申请实施例中提供的资源配置方法进行了介绍，接下来将介绍本申请实施例中的资源配置装置的结构示意图，请参阅图5。
参阅图5，本申请实施例中提供的资源配置装置50，可以包括：
检测模块501，用于检测宿主小区内是否存在目标终端，目标终端与中继节点RN的无线空口信道的相关性大于目标阈值，该相关性用于指示目标终端和中继节点RN的无线空口信道的信道干扰程度。
确定模块502，用于在检测模块501检测不存在目标终端时，通过资源空分复用为所述中继节点RN确定为所述中继节点RN分配一个或多个波束，所述一个或多个波束是所述宿主基站DeNB的大规模天线阵列通过空口波束成型所形成的波束，所述一个或多个波束用于所述中继节点RN进行数据回传。
本申请实施例提供的资源配置装置，通过大规模MIMO技术对中继节点RN和普通的终端设备进行分波束的空口资源调度方式，从而增强空口资源复用度，在提升中继节点RN的回传能力的同时，降低对宿主小区内普通的终端设备的影响，提升整个系统的容量。
可选地，作为一个实施例，确定模块502，还用于在检测模块501检测存在目标终端时，通过调度优化算法确定所述中继节点RN和所述目标终端的资源分配方式，以使所述大规模MIMO小区的系统总容量满足预置条件。
可选地，作为一个实施例，确定模块502，用于在所述检测模块501检测存在所述目标 终端时，分别确定系统总容量的第一预测值和第二预测值，第一预测值为第一空口资源分配方式对应的系统总容量，第二预测值为第二空口资源分配方式对应的系统总容量，第一空口资源分配方式中中继节点RN和目标终端按照预置比例分配同一波束的空口资源，第二资源分配方式中中继节点RN和目标终端按照优先级顺序分配同一波束的空口资源，中继节点RN的优先级高于目标终端；根据第一预测值和第二预测值确定中继节点RN的空口资源分配方式。
可选地，作为一个实施例，确定模块502，用于判断第一预测值是否大于第二预测值；若第一预测值大于或等于第二预测值，则确定中继节点RN的资源分配方式为第一空口资源分配方式；若第一预测值小于第二预测值，则确定中继节点RN的资源分配方式为第二空口资源分配方式。
可选地，作为一个实施例，系统总容量为宿主小区的小区容量与中继节点RN对应的小区容量之和。
如图6所示，本申请实施例还提供一种网络设备60，该网络设备60包括处理器610，存储器620与收发器630，其中，存储器620中存储指令或程序，处理器610用于执行存储器620中存储的指令或程序。存储器620中存储的指令或程序被执行时，该处理器610用于执行上述实施例中检测模块501和确定模块502执行的操作。
应理解，本申请实施例的网络设备60为本申请实施例的资源分配方法中的宿主基站DeNB所对应的设备，网络设备60中的各个模块的操作和/或功能分别为了实现图2至图4中的各个方法的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时可以实现上述方法实施例提供的资源分配方法中与宿主基站DeNB相关的流程。
本申请实施例还提供计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时可以实现上述方法实施例提供的资源分配方法中与宿主基站DeNB相关的流程。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。
所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存储的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质 可以包括：ROM、RAM、磁盘或光盘等。
以上对本申请实施例所提供的资源分配方法以及相应的资源分配装置、通信系统等进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (12)

  1. 一种资源分配方法，其特征在于，所述方法应用于一种基于大规模MIMO的通信系统，所述通信系统包括宿主基站DeNB和与所述宿主基站DeNB对应的一个或多个中继节点RN，所述方法包括：
    所述宿主基站DeNB检测宿主小区内是否存在目标终端，所述目标终端与所述中继节点RN的无线空口信道的相关性大于目标阈值，所述相关性用于指示所述目标终端和所述中继节点RN的无线空口信道之间的信道干扰程度；
    若不存在，则所述宿主基站DeNB通过资源空分复用为所述中继节点RN确定一个或多个波束，所述一个或多个波束是所述宿主基站DeNB的大规模天线阵列通过空口波束成型所形成的波束，所述一个或多个波束用于所述中继节点RN进行数据回传。
  2. 根据权利要求1所述的方法，其特征在于，所述宿主基站DeNB检测宿主小区内是否存在目标终端之后，还包括：
    若存在所述目标终端，则所述宿主基站DeNB通过调度优化算法确定所述中继节点RN和所述目标终端的空口资源分配方式，以使所述宿主小区的系统总容量满足预置条件。
  3. 根据权利要求2所述的方法，其特征在于，所述宿主基站DeNB通过调度优化算法确定所述中继节点RN和所述目标终端的空口资源分配方式，以使所述宿主小区的系统总容量满足预置条件，包括：
    所述宿主基站DeNB分别确定所述系统总容量的第一预测值和第二预测值，所述第一预测值为第一空口资源分配方式对应的系统总容量，所述第二预测值为第二空口资源分配方式对应的系统总容量，所述第一空口资源分配方式中所述中继节点RN和所述目标终端按照预置比例分配同一波束的空口资源，所述第二空口分配方式中所述中继节点RN和所述目标终端按照优先级顺序分配所述同一波束的空口资源，其中，所述中继节点RN的优先级高于所述目标终端；
    所述宿主基站DeNB根据所述第一预测值和所述第二预测值确定所述中继节点RN和所述目标终端的空口资源分配方式。
  4. 根据权利要求3所述的方法，其特征在于，所述宿主基站DeNB根据所述第一预测值和所述第二预测值确定所述中继节点RN和所述目标终端的空口资源分配方式，包括：
    所述宿主基站DeNB判断所述第一预测值是否大于所述第二预测值；
    若所述第一预测值大于或等于所述第二预测值，则所述宿主基站DeNB确定所述中继节点RN和所述目标终端的空口资源分配方式为所述第一空口资源分配方式；
    若所述第一预测值小于所述第二预测值，则所述宿主基站DeNB确定所述中继节点RN和所述目标终端的空口资源分配方式为所述第二空口资源分配方式。
  5. 根据权利要求2-4任一所述的方法，其特征在于，所述系统总容量为所述宿主小区的小区容量与所述中继节点RN对应的小区容量之和。
  6. 一种资源分配装置，其特征在于，包括：
    检测模块，用于检测宿主小区内是否存在目标终端，所述目标终端与所述中继节点RN的无线空口信道的相关性大于目标阈值，所述相关性用于指示所述目标终端和所述中继节 点RN的无线空口信道之间的信道干扰程度；
    确定模块，用于在所述检测模块检测不存在所述目标终端时，通过资源空分复用为所述中继节点RN确定一个或多个波束，所述一个或多个波束是所述宿主基站DeNB的大规模天线阵列通过空口波束成型所形成的波束，所述一个或多个波束用于所述中继节点RN进行数据回传。
  7. 根据权利要求6所述的装置，其特征在于，
    所述确定模块，还用于在所述检测模块检测存在所述目标终端时，通过调度优化算法确定所述中继节点RN和所述目标终端的资源分配方式，以使所述宿主小区的系统总容量满足预置条件。
  8. 根据权利要求7所述的装置，其特征在于，所述确定模块，用于在所述检测模块检测存在所述目标终端时，分别确定系统总容量的第一预测值和第二预测值，所述第一预测值为第一空口资源分配方式对应的系统总容量，所述第二预测值为第二空口资源分配方式对应的系统总容量，所述第一空口资源分配方式中所述中继节点RN和所述目标终端按照预置比例分配同一波束的空口资源，所述第二空口资源分配方式中所述中继节点RN和所述目标终端按照优先级顺序分配所述同一波束的空口资源，其中，所述中继节点RN的优先级高于所述目标终端；根据所述第一预测值和所述第二预测值确定所述中继节点RN的资源分配方式；根据所述第一预测值和所述第二预测值确定所述中继节点RN和所述目标终端的空口资源分配方式。
  9. 根据权利要求8所述的装置，其特征在于，
    所述确定模块，用于判断所述第一预测值是否大于所述第二预测值；若所述第一预测值大于或等于所述第二预测值，则确定所述中继节点RN和所述目标终端的资源分配方式为所述第一空口资源分配方式；若所述第一预测值小于所述第二预测值，则确定所述中继节点RN和所述目标终端的空口资源分配方式为所述第二空口资源分配方式。
  10. 根据权利要求7-9任一所述的装置，其特征在于，所述系统总容量为所述宿主小区的小区容量与所述中继节点RN对应的小区容量之和。
  11. 一种宿主基站DeNB，其特征在于，包括：处理器，存储器；
    所述存储器用于存储计算机可读指令或者计算机程序，所述处理器用于读取所述计算机可读指令以实现如权利要求1-5中任意一项所述的方法。
  12. 一种计算机可读存储介质，其特征在于，包括计算机程序指令，当其在计算机上运行时，使得所述计算机执行如权利要求1-5中任意一项所述的方法。
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