WO2020082945A1 - 负载均衡方法及设备 - Google Patents
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- WO2020082945A1 WO2020082945A1 PCT/CN2019/106652 CN2019106652W WO2020082945A1 WO 2020082945 A1 WO2020082945 A1 WO 2020082945A1 CN 2019106652 W CN2019106652 W CN 2019106652W WO 2020082945 A1 WO2020082945 A1 WO 2020082945A1
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- 238000000034 method Methods 0.000 title claims abstract description 69
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- 230000002452 interceptive effect Effects 0.000 claims description 8
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- 238000005516 engineering process Methods 0.000 description 12
- 238000004891 communication Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
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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
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/082—Load balancing or load distribution among bearers or channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/22—Performing reselection for specific purposes for handling the traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00837—Determination of triggering parameters for hand-off
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
- H04W36/085—Reselecting an access point involving beams of access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
Definitions
- the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to a load balancing method and device.
- LTE Long Time Evolution
- QoS quality of service
- the neighboring cell feeds back the resource status phase response message (RESOURCE STATUS RESPONSE) through the station or x2 port, and transmits its own load information to the source cell;
- RESET STATUS RESPONSE resource status phase response message
- the neighboring cell periodically sends a resource status update message (RESOURCE STATUS UPDATE) to the source cell.
- the above load information can carry physical resource block utilization rate (PRBPeriodic), transmission bandwidth load (TNL loadIndPeriodic), hardware resource load (HWLoadIndPeriodic), remaining capacity of the cell (CompositeAvailableCapacityPeriodic, CACPeriodic), almost blank All or part of the information in the ABS Status (Periodic), Reference Signal Received Power Measurement Report (RSRP, Measurement, Report, Periodic), and Channel Status Information Report (CSI, Report, Periodic).
- PRBPeriodic physical resource block utilization rate
- TNL loadIndPeriodic transmission bandwidth loadIndPeriodic
- HWLoadIndPeriodic hardware resource load
- remaining capacity of the cell CompositeAvailableCapacityPeriodic, CACPeriodic
- ABS Status Periodic
- RSRP Reference Signal Received Power Measurement Report
- CSI Channel Status Information Report
- the source cell selects the appropriate neighboring cell as the target cell through the collected information
- Select the appropriate terminal such as selecting users based on QoS class identifier (QCI) service type, user occupancy PRB size, user location and other information; and causing users to switch and migrate to the corresponding target cell.
- QCI QoS class identifier
- Some embodiments of the present disclosure provide a load balancing method and device that can implement beam-based load balancing.
- Some embodiments of the present disclosure provide a load balancing method, including: a first base station to which a first cell belongs, receiving beam load information of a second cell sent by a second base station to which a second cell belongs.
- Some embodiments of the present disclosure also provide a load balancing method, including: a second base station sending beam load information of the second cell to a first base station.
- Some embodiments of the present disclosure also provide a first base station, where the first cell belongs to the first base station, and the first base station includes: a first transceiver and a first processor, wherein, the first transceiver, It is used to receive the beam load information of the second cell sent by the second base station to which the second cell belongs.
- Some embodiments of the present disclosure also provide a second base station, and the second cell belongs to the second base station, and the second base station includes: a second transceiver and a second processor, where the second transceiver, It is also used to send the beam load information of the second cell to the first base station.
- Some embodiments of the present disclosure also provide a network device, including: a memory, a processor, and a program stored on the memory and executable on the processor. When the program is executed by the processor, the method as described above is implemented A step of.
- Some embodiments of the present disclosure also provide a computer-readable storage medium that stores a computer program on the computer-readable storage medium.
- the computer program is executed by a processor, the steps of the foregoing method are implemented.
- the base station when the beam load in the cell is large, selects the terminal to be switched from the cell, and switches the terminal to be switched to another cell, thereby reducing the beam load in the cell.
- FIG. 1a is one of the schematic flowcharts of the load balancing method provided by some embodiments of the present disclosure
- FIG. 1b is a second schematic flowchart of a load balancing method provided by some embodiments of the present disclosure
- FIG. 2a is a third schematic flowchart of a load balancing method provided by some embodiments of the present disclosure
- FIG. 2b is a fourth schematic flowchart of a load balancing method provided by some embodiments of the present disclosure.
- FIG. 3 is a schematic structural diagram of a first base station provided by some embodiments of the present disclosure.
- FIG. 4 is a schematic structural diagram of a second base station provided by some embodiments of the present disclosure.
- FIG. 5 is a schematic structural diagram of a network device provided by some embodiments of the present disclosure.
- LTE Long Time Evolution
- LTE-Advanced LTE-A
- 5G NR fifth generation communication technology new air interface
- CDMA code division multiple access
- TDMA time division multiple access
- TDMA time division multiple access
- Frequency Division Division Multiple Access Frequency Division Division Multiple Access
- FDMA frequency division multiple access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-Carrier Frequency Division Multiple Access
- the embodiment of the present disclosure is introduced by taking the 5G NR system as an example, which is also applicable to other systems, and will not be described here.
- the fifth generation (5G) wireless network is also called the fifth generation mobile phone mobile communication standard, which is an extension after 4G.
- 5G wireless networks can use high carrier frequencies and an unprecedented number of antennas, greatly increasing the transmission speed of signaling.
- 5G can also be combined with any potential new 5G air interface, LTE and WiFi, which can provide a universal high coverage and a seamless user experience.
- the terms “system” and “network” are often used interchangeably.
- the CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA) and so on.
- UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants.
- the TDMA system can implement radio technologies such as Global System for Mobile (GSM).
- OFDMA system can realize such as Ultra Mobile Broadband (Ultra Mobile Broadband, UMB), Evolution UTRA (Evolution-UTRA, E-UTRA), IEEE 802.11 (Wi-Fi), IEEE802.16 (WiMAX), IEEE802.20, Flash-OFDM Etc. radio technology.
- UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS).
- LTE and more advanced LTE are new UMTS versions that use E-UTRA.
- UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project (3GPP).”
- CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
- the technology described herein can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies.
- some embodiments of the present disclosure provide a load balancing method, which is applied to a first base station to which a first cell belongs. As shown in FIG. 1a, the method includes:
- Step 11 The first base station receives beam load information of the second cell sent by the second base station to which the second cell belongs.
- the beam load information of the second cell may be indication information quantitatively expressed by specific numerical values, or qualitatively indicated by load levels such as “low”, “medium”, and “high”. Information, the embodiment of the present disclosure does not specifically limit this.
- another load aggregation method when applied to the above-mentioned first base station, may further include: before step 11 of FIG. 1a:
- Step 10 The first base station sends a request message for requesting beam load information to the neighboring base station or neighboring cell.
- the first base station when detecting that the load of the first beam of the first cell exceeds the first threshold, the first base station sends a request message to the neighboring base station or neighboring cell.
- the request message carries the beam identification information of the first beam and / or the beam identification information of the second beam of the second base station, and the second beam is a beam that the first base station desires to obtain beam load information.
- the above beam identification information is characterized by the identification of a reference signal used by the beam, and the reference signal includes a synchronization signal block (SS / PBCH block) and / or a channel state information reference signal (CSI-RS).
- SS / PBCH block synchronization signal block
- CSI-RS channel state information reference signal
- the base stations may exchange information about their beams and coverage through the inter-base station interface (such as Xn interface or X2 interface), and the first base station may also obtain the beams of neighboring base stations according to the measurement report of the terminal. Information and information such as the signal reception quality of the terminal on the beam of the adjacent base station. Therefore, in order to obtain the load information of the second beam that may be used to share the load of the first beam in a more targeted manner, there may be an overlapping area between the coverage of the second beam and the coverage of the first beam.
- the inter-base station interface such as Xn interface or X2 interface
- the request message may carry indication information of the reason for the request, and the reason for the request is beam-based load balancing.
- the request message is also used to indicate the type of beam load information desired to be obtained.
- the type of beam load information includes at least one of the following types: uplink PRB utilization, downlink PRB utilization, uplink data throughput, and downlink Data throughput, the remaining capacity of the beam, and the ratio of the remaining capacity of the beam.
- receiving beam load information of the second cell sent by the second base station may specifically include:
- the second base station after receiving the request message sent by the first base station, the second base station returns a response message, for example, through RESOURCE STATUS RESPONSE, and carries the beam load information of the second cell in the response message. Under the 5G system, the second base station sends a response message to the first base station through the Xn interface.
- the second base station periodically sends beam load update information to the first base station, for example, through RESOURCE STATUS UPDATE, and carries the beam load information of the second cell in the beam load update information.
- the second base station may selectively send beam load information of the first type beam that can be the target beam for handover.
- the beam load information of the second cell is beam load information of the first type beam of the second cell.
- the first type beam may be:
- Step 12 The first base station selects the target cell based on the beam load information of at least one neighboring cell.
- the first base station selects the target cell based on beam load information of at least one neighboring cell.
- the target cell may be a cell belonging to a neighboring base station, for example: a second cell belonging to a second base station, and the target cell may also be a cell other than the first cell belonging to the first base station.
- the first base station can also select the target cell according to more factors. For example, it also depends on factors such as the signal reception quality of the terminal on the beam.
- the first base station selects one or more target beams from the second-type beams of the neighboring cell, and determines the target cell according to the neighboring cell to which the target beam belongs;
- the second type of beam may be the following beam:
- the beam load is lower than the third threshold, and the signal reception quality of the terminal in the beam of the second type meets the fourth threshold.
- the first, second, third, or fourth threshold may be pre-defined by the protocol, or sent to the second base station through an interactive message during the establishment of the interface between the base stations, or the first base station may use the inter-base station
- the interface update interface information is sent to the second base station.
- the first base station may also carry the first, second, third, or fourth thresholds in the request message and send it to the second base station, for example, by sending it to the second base station through RESOURCE STATUS REQUEST.
- first threshold, second threshold, third threshold, and fourth threshold may be independent of each other.
- first threshold may be predefined by the protocol
- second threshold may be sent to the second base station through an interactive message during the establishment of the interface between base stations
- third threshold may be carried on the interface update interface If the information is sent to the second base station, the fourth threshold may be sent in the request message.
- Step 13 The first base station selects the terminal to be switched from the terminals in the first cell, and switches the terminal to be switched to the target cell.
- the method for switching the terminal to be switched to the target cell is to send a switching request for the terminal to be switched to the target cell, and / or send a switching command to the target cell to the terminal to be switched.
- the handover request and / or handover command carries indication information of a handover reason, and the handover reason is beam-based load balancing; further, the handover request also carries indication information of a target beam to be handed over.
- the first base station may select some or all of the terminals under the first beam as the terminal to be handed over.
- the terminal under the first beam refers to a terminal that communicates with the first base station through the first beam.
- the first base station can obtain beam load information of the cell of the base station or other base station cells, so that the first beam load of the first cell of the base station is heavier according to the above beam load information
- the terminal under the first beam is switched to another beam of the local base station or the neighboring base station, thereby reducing the load of the first beam and achieving beam-based load balancing.
- some embodiments of the present disclosure provide another load balancing method, which is applied to the second base station to which the second cell belongs.
- the method includes:
- Step 21 The second base station to which the second cell belongs receives a request message for requesting beam load information sent by the first base station to which the first cell belongs.
- the request message may be sent by the first base station when the load of the first beam of the cell of the base station exceeds the first threshold, and the request message may carry the beam identification information of the first beam and And / or beam identification information of the second beam of the second cell, where the second beam is a beam that the first base station desires to obtain beam load information. Furthermore, there is an overlapping area between the coverage of the second beam and the coverage of the first beam.
- the above beam identification information is characterized by an identification of a reference signal used by the beam, and the reference signal includes a synchronization signal block (SS / PBCH block) and / or a channel state information reference signal (CSI-RS).
- the reference signal includes a synchronization signal block (SS / PBCH block) and / or a channel state information reference signal (CSI-RS).
- SS / PBCH block synchronization signal block
- CSI-RS channel state information reference signal
- the request message may carry indication information of the reason for the request, and the reason for the request is beam-based load balancing.
- the request message is also used to indicate the type of beam load information desired to be obtained.
- the type of beam load information includes at least one of the following types: uplink PRB utilization, downlink PRB utilization, uplink data throughput, and downlink Data throughput, the remaining capacity of the beam, and the ratio of the remaining capacity of the beam.
- Step 22 The second base station sends beam load information of the second cell to the first base station.
- the second base station after receiving the request message sent by the first base station, the second base station returns a response message, for example, through RESOURCE STATUS RESPONSE, and carries the beam load information of the second cell in the response message.
- the second base station may send a response message to the first base station through the Xn port.
- the beam load update information carrying beam load information of the second cell
- the second base station periodically sends beam load update information to the first base station, for example, through RESOURCE STATUS UPDATE, and carries the beam load information of the second cell in the beam load update information.
- the beam load information of the second cell is beam load information of the first type beam of the second cell
- the first type of beam is a beam whose load is lower than the first threshold
- the first type of beam is a beam on which the signal reception quality of the terminal meets the second threshold
- the beam of the first type is a beam whose load is lower than the first threshold and the signal reception quality of the terminal on the beam meets the second threshold.
- the above first threshold or second threshold is predefined by the agreement
- the first threshold or the second threshold is sent to the second base station through an interactive message in the process of establishing an interface between base stations;
- the above first threshold or second threshold is sent to the second base station through the interface information update between the base stations;
- the first threshold or the second threshold is carried in the request message and sent to the second base station;
- FIG. 2b another load balancing method provided by some embodiments of the present disclosure further includes after step 22 of FIG. 2a:
- Step 23 Receive a handover request message sent by the first base station
- the handover request message carries indication information of the handover reason, and the handover reason is beam-based load balancing.
- the handover request message also carries indication information of the target beam to be handed over.
- some embodiments of the present disclosure also provide a device for implementing the above method.
- some embodiments of the present disclosure provide a first base station 300, where a first cell belongs to the first base station 300, and the first base station includes: a first transceiver 301 and a first processor 302;
- the first transceiver 301 is configured to receive beam load information of the second cell sent by the second base station to which the second cell belongs;
- the first processor 302 is configured to select a target cell; select a terminal to be switched from terminals in the first cell, and switch the terminal to be switched to the target cell.
- the first transceiver 301 is further configured to send a request message for requesting beam load information to a neighboring base station or neighboring cell.
- the first transceiver 301 is further configured to send the request message to a neighboring base station or neighboring cell when it is detected that the load of the first beam of the first cell exceeds the first threshold.
- the request message carries beam identification information of the first beam and / or beam identification information of the second beam of the second base station, where the second beam is the beam load expected by the first base station Information beam.
- the beam identification information is characterized by an identification of a reference signal used by the beam, and the reference signal includes a synchronization signal block SS / PBCH block and / or a channel state information reference signal CSI-RS.
- the request message carries indication information of the reason for the request, and the reason for the request is beam-based load balancing.
- the request message is also used to indicate the type of beam load information desired to be obtained, and the type of beam load information includes at least one of the following types: uplink physical resource block PRB utilization, downlink PRB utilization, Uplink data throughput, downlink data throughput, the remaining capacity of the beam, and the ratio of the remaining capacity of the beam.
- the first transceiver 301 is further configured to receive a response message returned by the second base station for the request message, the response message carrying beam load information of the second cell; and / or ,
- the first transceiver 301 is further configured to receive beam load update information periodically sent by the second base station according to the request message, and the beam load update information carries beam load information of the second cell.
- the beam load information of the second cell is beam load information of the first type beam of the second cell
- the beam of the first type is a beam whose load is lower than the first threshold
- the beam of the first type is a beam on which the signal reception quality of the terminal meets the second threshold
- the beam of the first type is a beam whose load is lower than the first threshold and the signal reception quality of the terminal on the beam satisfies the second threshold.
- the first processor 302 is further configured to select a target cell based on beam load information of at least one neighboring cell.
- the first processor 302 is further configured to select one or more target beams from the second-type beams of the neighboring cell, and determine the target cell according to the neighboring cell to which the target beam belongs;
- the beam load is lower than the third threshold, and the signal reception quality of the terminal in the second type beam meets the fourth threshold.
- the first threshold, the second threshold, the third threshold, or the fourth threshold are predefined by the protocol, or are sent to the second base station through an interactive message during the establishment of the interface between the base stations, or through the base station
- the interface update interface information is sent to the second base station or sent to the second base station in the request message.
- the first transceiver 301 is further configured to send a handover request for the terminal to be handed over to the target cell, and / or send a handover command to the target cell to the terminal to be handed over.
- the handover request and / or handover command carries indication information of a handover reason, and the handover reason is beam-based load balancing.
- the switching request also carries indication information of the switched target beam.
- some embodiments of the present disclosure provide a second base station 400, and the second cell belongs to the second base station 400.
- the second base station 400 includes: a second transceiver 401 and a second processor 402, where ,
- the second transceiver 401 is configured to send beam load information of the second cell to the first base station.
- the second transceiver 401 before the second transceiver 401 sends the beam load information of the second cell to the first base station, the second transceiver 401 is further configured to receive the information sent by the first base station to which the first cell belongs Request message for requesting beam load information.
- the request message is sent by the first base station when the load of the first beam of the cell of the base station exceeds a first threshold, and the request message carries the beam identification information and / or the location of the first beam.
- the second beam is a beam that the first base station desires to obtain beam load information.
- the request message carries indication information of the reason for the request, and the reason for the request is beam-based load balancing.
- the beam identification information is characterized by an identification of a reference signal used by the beam, and the reference signal includes a synchronization signal block SS / PBCH block and / or a channel state information reference signal CSI-RS.
- the request message is also used to indicate the type of beam load information desired to be obtained, and the type of beam load information includes at least one of the following types: uplink physical resource block PRB utilization, downlink PRB utilization, Uplink data throughput, downlink data throughput, the remaining capacity of the beam, and the ratio of the remaining capacity of the beam.
- the second transceiver 401 is further configured to send a response message to the request message to the first base station, where the response message carries beam load information of the second cell; and / or,
- the second transceiver 401 is further configured to periodically send beam load update information to the first base station, where the beam load update information carries beam load information of the second cell.
- the beam load information of the second cell is beam load information of the first type beam of the second cell
- the beam of the first type is a beam whose load is lower than the first threshold
- the beam of the first type is a beam on which the signal reception quality of the terminal meets the second threshold
- the beam of the first type is a beam whose load is lower than the first threshold and the signal reception quality of the terminal on the beam satisfies the second threshold.
- the first threshold or the second threshold is predefined by the protocol, or is sent to the second base station through an interactive message during the establishment of the interface between base stations, or sent to the The second base station, or it is carried in the request message and sent to the second base station.
- the second transceiver 401 is further configured to receive a handover request message sent by the first base station;
- the handover request message carries indication information of the handover reason, and the handover reason is beam-based load balancing.
- the handover request message also carries indication information of the target beam to be handed over.
- some embodiments of the present disclosure provide another network device 500, including: a processor 501, a transceiver 502, a memory 503, and a bus interface.
- the processor 501 may be responsible for managing the bus architecture and general processing.
- the memory 503 may store data used by the processor 501 when performing operations.
- the network device 500 may further include: a program stored on the memory 503 and executable on the processor 501, which when executed by the processor 501 implements the steps of the method provided by the embodiments of the present disclosure .
- the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by the processor 501 and various circuits of the memory represented by the memory 503 are linked together.
- the bus architecture can also link various other circuits such as peripheral devices, voltage regulators and power management circuits, etc., which are well known in the art, therefore, they will not be further described in the embodiments of the present disclosure .
- the bus interface provides an interface.
- the transceiver 502 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium.
- Some embodiments of the present disclosure also provide a computer-readable storage medium that stores a computer program on the computer-readable storage medium.
- the computer program is executed by a processor, the processes of the foregoing network access method embodiments are implemented, and can To achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
- the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk or optical disk, etc.
- the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
- the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable Logic Device (Programmable Logic Device, PLD), Field Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, others for performing the functions described in this disclosure Electronic unit or its combination.
- ASIC Application Specific Integrated Circuits
- DSP Digital Signal Processing
- DSP Device digital signal processing device
- DPD digital signal processing device
- PLD programmable Logic Device
- Field Programmable Gate Array Field-Programmable Gate Array
- FPGA Field-Programmable Gate Array
- the technology described in the embodiments of the present disclosure may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
- the software codes can be stored in the memory and executed by the processor.
- the memory may be implemented in the processor or external to the processor.
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Abstract
本公开实施例提供一种负载均衡方法及设备。其中,所述负载均衡方法包括:第一小区所属的第一基站,接收第二小区所属的第二基站发送的第二小区的波束负荷信息。
Description
相关申请的交叉引用
本申请主张在2018年10月22日在中国提交的中国专利申请号No.201811228627.7的优先权,其全部内容通过引用包含于此。
本公开实施例涉及通信技术领域,特别涉及一种负载均衡方法及设备。
在长期演进型(Long Time Evolution,LTE)网络中,当服务小区内用户过于集中,将导致小区的负荷过高,小区容量和服务质量(Quality of Service,QoS)都会受到影响。为保证用户体验和无线资源的有限利用,需要及时将高负荷小区的负荷分担到负荷低的邻区。
要实现高效优质的负载均衡,小区之间进行有限的负荷信息交互过程必不可少,主要流程如下:
1.当源小区评估本小区负荷过高,触发负载均衡,向邻区发起交互资源状态的请求消息(RESOURCE STATUS REQUEST);
2.邻区通过站内或x2口的方式反馈资源状态的相响应消息(RESOURCE STATUS RESPONSE),将自身负荷信息传递给源小区;
3.邻区周期性的向源小区发送资源状态的更新消息(RESOURCE STATUS UPDATE)。
上述负荷信息可以携带物理资源块利用率(PRB Periodic)、传输带宽负荷(TNL load Ind Periodic)、硬件资源负荷(HW Load Ind Periodic)、小区剩余容量(Composite Available Capacity Periodic,CAC Periodic)、几乎空白子帧状态(ABS Status Periodic)、参考信号接收功率测量报告(RSRP Measurement Report Periodic)、信道状 态信息报告(CSI Report Periodic)中的全部或部分信息。
4.源小区通过收集的信息,选择合适的邻区作为目标小区;
5.选择合适的终端,如基于QoS等级标识(QoS class identifier,QCI)业务类型、用户占用PRB大小、用户位置等信息选择用户;并使用户发生切换,迁移到相应目标小区。
第五代通信技术(fifth-generation,5G)中由于引入了多波束(multi-beam)的操作(operation),因此在实际应用场景中,可能不仅需要衡量一个小区的负荷,还需要衡量波束的负荷。当小区整体的负荷并不很高,相关技术通常不会触发基于小区的负载均衡,但是其中某些波束的负荷可能已经达到较高的水平。因此,目前亟需一种能够实现基于波束的负载均衡。
发明内容
本公开的一些实施例提供一种负载均衡方法及设备,能够实现基于波束的负载均衡。
本公开的一些实施例提供了一种负载均衡方法,包括:第一小区所属的第一基站,接收第二小区所属的第二基站发送的第二小区的波束负荷信息。
本公开的一些实施例还提供一种负载均衡方法,包括:第二基站向第一基站发送所述第二小区的波束负荷信息。
本公开的一些实施例还提供一种第一基站,第一小区属于所述第一基站,所述第一基站包括:第一收发机和第一处理器,其中,所述第一收发机,用于接收第二小区所属的第二基站发送的第二小区的波束负荷信息。
本公开的一些实施例还提供一种第二基站,第二小区属于所述第二基站,所述第二基站包括:第二收发机和第二处理器,其中,所述第二收发机,还用于向第一基站发送所述第二小区的波束负荷信息。
本公开的一些实施例还提供一种网络设备,包括:存储器、处理器及存储在存储器上并可在处理器上运行的程序,所述程序被所述处 理器执行时,实现如上述的方法的步骤。
本公开的一些实施例还提供一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时,实现如上述的方法的步骤。
在本公开的一些实施例中,当小区中的波束负荷较大时,基站从该小区选择出待切换终端,将该待切换终端切换至其它小区中,从而减少该小区中的波束的负载。
为了更清楚地说明本公开实施例的技术方案,下面将对本公开实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1a为本公开的一些实施例提供的负载均衡方法的流程示意图之一;
图1b为本公开的一些实施例提供的负载均衡方法的流程示意图之二;
图2a为本公开的一些实施例提供的负载均衡方法的流程示意图之三;
图2b为本公开的一些实施例提供的负载均衡方法的流程示意图之四;
图3为本公开的一些实施例提供的第一基站的结构示意图;
图4为本公开的一些实施例提供的第二基站的结构示意图;以及
图5为本公开的一些实施例提供的网络设备的结构示意图。
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技 术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
本文所描述的技术不限于长期演进型(Long Time Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)***,并且也可用于各种无线通信***,诸如第五代通信技术新空口(fifth-generation New Radio,5G NR)***及其演进***、码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他***等。
可以理解的是,本公开实施例是以5G NR***为例进行的介绍,对于其他***同样也是适用,在此不再敷述。其中第五代(5G)无线网络也被称为第五代移动电话行动通信标准,是4G之后的延伸。5G无线网络可以利用高载波频率以及以前所未有的天线数量,大大增加了信令的传输速度。此外5G还可结合任何潜在的新的5G空中接口、LTE和WiFi,从而能够提供通用的高覆盖率以及无缝的用户体验。
术语“***”和“网络”常被可互换地使用。CDMA***可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access,UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access,WCDMA)和其他CDMA变体。TDMA***可实现诸如全球移动通信***(Global System for Mobile Communication,GSM)之类的无线电技术。OFDMA***可实现诸如超移动宽带(Ultra Mobile Broadband,UMB)、演进型UTRA(Evolution-UTRA,E-UTRA)、IEEE 802.11(Wi-Fi)、IEEE802.16(WiMAX)、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信***(Universal Mobile Telecommunications System,UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、 UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project,3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的***和无线电技术,也可用于其他***和无线电技术。
参见图1a~1b,本公开的一些实施例提供一种负载均衡方法,应用于第一小区所属的第一基站,如图1a所示,该方法包括:
步骤11:第一基站接收第二小区所属的第二基站发送的第二小区的波束负荷信息。
在本公开的一些实施例中,第二小区的波束负荷信息可以是通过具体数值来定量表示的指示信息,也可以通过“低”、“中”、“高”等负荷程度来定性表示的指示信息,本公开实施例对此不做具体限定。
可选的,请参见图1b,本公开的一些实施例提供的另一种负载聚合方法,在应用于上述第一基站时,在图1a的步骤11之前还可以包括:
步骤10:第一基站向相邻基站或相邻小区发送用于请求波束负荷信息的请求消息。
具体地,第一基站在检测到第一小区的第一波束的负荷超出第一阈值时,向相邻基站或相邻小区发送请求消息。
在一些实施方式中,请求消息中携带有第一波束的波束标识信息和/或第二基站的第二波束的波束标识信息,该第二波束是第一基站期望获得波束负荷信息的波束。这里,上述波束标识信息通过波束所使用的参考信号的标识来表征,该参考信号包括同步信号块(SS/PBCH block)和/或信道状态信息参考信号(CSI-RS)。
在本公开的一些实施例中,基站间可以通过基站间接口(如Xn接口或X2接***互各自的波束及覆盖范围等信息),第一基站还可以根据终端的测量报告获取相邻基站的波束信息以及终端在相邻基站的波束上的信号接收质量等信息。因此,为了更有针对性的获取到可能用于分担第一波束负荷的第二波束的负荷信息,这里的第二波束 的覆盖范围可以与第一波束的覆盖范围之间存在有重叠区域。
在一些实施方式中,上述请求消息中可以携带有请求原因的指示信息,该请求原因为基于波束的负载均衡。
可选地,请求消息还用于指示希望获得的波束负荷信息的类型,该波束负荷信息的类型包括以下类型中的至少一种:上行PRB利用率,下行PRB利用率,上行数据吞吐量,下行数据吞吐量,波束的剩余容量,以及,波束的剩余容量比例。
在上述步骤11中,接收第二基站发送的第二小区的波束负荷信息,具体可以包括:
1)接收第二基站针对请求消息返回的响应消息,响应消息携带有第二小区的波束负荷信息;
和/或,
2)接收第二基站根据请求消息周期性发送的波束负荷更新信息,波束负荷更新信息携带有第二小区的波束负荷信息。
在一些实施方式中,第二基站在接收到第一基站发送的请求消息后,返回响应消息,例如通过RESOURCE STATUS RESPONSE,并在该响应消息中携带第二小区的波束负荷信息。在5G***下,第二基站通过Xn口的方式向第一基站发送响应消息。
在另一些实施方式中,第二基站周期性地向第一基站发送波束负荷更新信息,例如通过RESOURCE STATUS UPDATE,并在该波束负荷更新信息中携带第二小区的波束负荷信息。
进一步地,第二基站在向第一基站发送第二小区的波束负荷信息时,可以选择性的发送能够作为切换的目标波束的第一类波束的波束负荷信息。此时,所述第二小区的波束负荷信息为第二小区的第一类波束的波束负荷信息。
具体的,所述第一类波束可以是:
负荷低于第一门限的波束;
终端在该波束上的信号接收质量满足第二门限的波束;
负荷低于第一门限,且终端在该波束上的信号接收质量满足第二 门限的波束。
步骤12:第一基站根据至少一个邻区的波束负荷信息,选择出目标小区。
在本公开的一些实施例中,第一基站根据至少一个邻区的波束负荷信息,选择出目标小区。目标小区可以是属于相邻基站的小区,例如:属于第二基站的第二小区,目标小区也可以是属于第一基站的除第一小区以外的小区。当然,除了邻区的波束负荷信息外,第一基站还可以根据更多的因素来进行目标小区的选择。例如,还根据终端在波束上的信号接收质量等因素。
进一步地,第一基站从邻区的第二类波束中选择出一个或多个目标波束,根据目标波束所属的邻区,确定目标小区;
其中,第二类波束可以是以下波束:
与第一波束的覆盖范围之间存在重叠的波束;
或者,与第一波束的覆盖范围之间存在重叠,且波束负荷低于第三门限的波束;
或者,与第一波束的覆盖范围之间存在重叠,波束负荷低于第三门限,且终端在该第二类波束的信号接收质量满足第四门限的波束。
具体的,上述第一、第二、第三或第四门限可以是协议预定义的,或者是通过基站间接口建立过程中的交互消息发送给第二基站的,或者是第一基站通过基站间接口更新接口信息发送给第二基站的。
作为一种实现方式,第一基站也可以将上述第一、第二、第三或第四门限携带在请求消息中发送给第二基站的,例如:通过RESOURCE STATUS REQUEST发送给第二基站。
需要说明书的是,上述第一、第二、第三和第四门限的确定方式或发送方式可以是相互独立的。作为一种可选的示例,第一门限可以是协议预定义的,第二门限可以是通过基站间接口建立过程中的交互消息发送给第二基站的,第三门限可以是携带在接口更新接口信息发送给第二基站的,第四门限可以是在所述请求消息中发的。
步骤13:第一基站从第一小区的终端中选择出待切换终端,将 待切换终端切换至目标小区。
在本公开的一些实施例中,将待切换终端切换至目标小区的方式为:向目标小区发送针对待切换终端的切换请求,和/或,向待切换终端发送切换至目标小区的切换命令。可选地,上述切换请求和/或切换命令中携带有切换原因的指示信息,该切换原因为基于波束的负载均衡;进一步地,上述切换请求还携带有切换的目标波束的指示信息。
这里,在第一小区的第一波束的负荷超出第一阈值时,第一基站可以从第一波束下的终端中选择出部分或全部终端,作为待切换终端。上述第一波束下的终端是指通过第一波束与第一基站进行通信的终端。
通过以上步骤,本公开的一些实施例中第一基站可以获取本基站小区或其他基站小区的波束负荷信息,从而可以根据上述波束负荷信息,在本基站的第一小区的第一波束负荷较重时,将第一波束下的终端切换至本基站或相邻基站的其他波束,从而减轻第一波束的负荷,实现基于波束的负载均衡。
参见图2a,本公开的一些实施例提供了另一种负载均衡方法,应用于第二小区所属的第二基站,该方法包括:
步骤21:第二小区所属的第二基站,接收第一小区所属的第一基站发送的用于请求波束负荷信息的请求消息。
在本公开的一些实施例中,所述请求消息可以是第一基站在本基站小区的第一波束的负荷超出第一阈值时发送的,请求消息中可以携带有第一波束的波束标识信息和/或第二小区的第二波束的波束标识信息,第二波束是第一基站期望获得波束负荷信息的波束。更进一步地,所述第二波束的覆盖范围与第一波束的覆盖范围之间存在有重叠区域。
具体的,上述波束标识信息通过波束所使用的参考信号的标识来表征,该参考信号包括同步信号块(SS/PBCH block)和/或信道状态信息参考信号(CSI-RS)。
在一些实施方式中,所述请求消息中可以携带有请求原因的指示信息,该请求原因为基于波束的负载均衡。
可选地,请求消息还用于指示希望获得的波束负荷信息的类型,该波束负荷信息的类型包括以下类型中的至少一种:上行PRB利用率,下行PRB利用率,上行数据吞吐量,下行数据吞吐量,波束的剩余容量,以及,波束的剩余容量比例。
步骤22:第二基站向第一基站发送第二小区的波束负荷信息。
向第一基站发送针对请求消息的响应消息,响应消息携带有第二小区的波束负荷信息;
在一些实施方式中,第二基站在接收到第一基站发送的请求消息后,返回响应消息,例如通过RESOURCE STATUS RESPONSE,并在该响应消息中携带第二小区的波束负荷信息。在5G***下,第二基站可以通过Xn口的方式向第一基站发送响应消息。
和/或,接收第二基站根据请求消息周期性发送的波束负荷更新信息,波束负荷更新信息携带有第二小区的波束负荷信息;
在另一些实施方式中,第二基站周期性地向第一基站发送波束负荷更新信息,例如通过RESOURCE STATUS UPDATE,并在该波束负荷更新信息中携带第二小区的波束负荷信息。
进一步地,第二小区的波束负荷信息为第二小区的第一类波束的波束负荷信息;
其中,第一类波束为负荷低于第一门限的波束;
或者,第一类波束为终端在该波束上的信号接收质量满足第二门限的波束;
或者,第一类波束为负荷低于第一门限,且终端在该波束上的信号接收质量满足第二门限的波束。
上述第一门限或第二门限是协议预定义的;
或者,上述第一门限或第二门限是通过基站间接口建立过程中的交互消息发送给第二基站的;
或者,上述第一门限或第二门限通过基站间接口更新接口信息发 送给第二基站的;
例如:通过RESOURCE STATUS UPDATE发送给第二基站。
或者,上述第一门限或第二门限携带在请求消息中发送给第二基站的;
例如:通过RESOURCE STATUS REQUEST发送给第二基站。
参见图2b,本公开的一些实施例提供的另一种负载均衡方法,在图2a的步骤22之后还包括:
步骤23:接收第一基站发送的切换请求消息;
在本公开的一些实施例中,切换请求消息携带有切换原因的指示信息,该切换原因为基于波束的负载均衡。
进一步地,切换请求消息还携带有切换的目标波束的指示信息。
基于以上实施例提供的负载均衡方法,本公开的一些实施例还提供了实施上述方法的设备。
参见图3,本公开的一些实施例提供了一种第一基站300,第一小区属于所述第一基站300,所述第一基站包括:第一收发机301和第一处理器302;
其中,所述第一收发机301,用于接收第二小区所属的第二基站发送的第二小区的波束负荷信息;
可选地,所述第一处理器302,用于选择出目标小区;从第一小区的终端中选择出待切换终端,将所述待切换终端切换至所述目标小区。
可选地,所述第一收发机301,还用于向相邻基站或相邻小区发送用于请求波束负荷信息的请求消息。
可选地,所述第一收发机301,还用于在检测到第一小区的第一波束的负荷超出第一阈值时,向相邻基站或相邻小区发送所述请求消息。
可选地,所述请求消息中携带有所述第一波束的波束标识信息和/或所述第二基站的第二波束的波束标识信息,所述第二波束是第一基站期望获得波束负荷信息的波束。
可选地,所述第二波束的覆盖范围与所述第一波束的覆盖范围之间存在有重叠区域。
可选地,所述波束标识信息通过波束所使用的参考信号的标识来表征,所述参考信号包括同步信号块SS/PBCH block和/或信道状态信息参考信号CSI-RS。
可选地,所述请求消息中携带有请求原因的指示信息,所述请求原因为基于波束的负载均衡。
可选地,所述请求消息还用于指示希望获得的波束负荷信息的类型,所述波束负荷信息的类型包括以下类型中的至少一种:上行物理资源块PRB利用率,下行PRB利用率,上行数据吞吐量,下行数据吞吐量,波束的剩余容量,以及,波束的剩余容量比例。
可选地,所述第一收发机301,还用于接收所述第二基站针对所述请求消息返回的响应消息,所述响应消息携带有所述第二小区的波束负荷信息;和/或,
所述第一收发机301,还用于接收所述第二基站根据所述请求消息周期性发送的波束负荷更新信息,所述波束负荷更新信息携带有第二小区的波束负荷信息。
可选地,所述第二小区的波束负荷信息为所述第二小区的第一类波束的波束负荷信息;
其中,所述第一类波束为负荷低于第一门限的波束;
或者,所述第一类波束为终端在该波束上的信号接收质量满足第二门限的波束;
或者,所述第一类波束为负荷低于第一门限,且终端在该波束上的信号接收质量满足第二门限的波束。
可选地,所述第一处理器302,还用于根据至少一个邻区的波束负荷信息,选择出目标小区。
可选地,所述第一处理器302,还用于从邻区的第二类波束中选择出一个或多个目标波束,根据所述目标波束所属的邻区,确定目标小区;
其中,所述第二类波束与所述第一波束的覆盖范围之间存在重叠;
或者,所述第二类波束与所述第一波束的覆盖范围之间存在重叠,且波束负荷低于第三门限;
或者,所述第二类波束与所述第一波束的覆盖范围之间存在重叠,波束负荷低于第三门限,且终端在所述第二类波束的信号接收质量满足第四门限。
可选地,所述第一门限、第二门限、第三门限或第四门限是协议预定义的,或者是通过基站间接口建立过程中的交互消息发送给第二基站的,或者是通过基站间接口更新接口信息发送给第二基站的,或者是携带在所述请求消息中发送给第二基站的。
可选地,所述第一收发机301,还用于向目标小区发送针对所述待切换终端的切换请求,和/或,向所述待切换终端发送切换至所述目标小区的切换命令。
可选地,所述切换请求和/或切换命令中携带有切换原因的指示信息,所述切换原因为基于波束的负载均衡。
可选地,所述切换请求还携带有切换的目标波束的指示信息。
参见图4,本公开的一些实施例提供一种第二基站400,第二小区属于所述第二基站400,所述第二基站400包括:第二收发机401和第二处理器402,其中,
所述第二收发机401,用于向第一基站发送所述第二小区的波束负荷信息。
可选地,在所述第二收发机401向第一基站发送所述第二小区的波束负荷信息之前,所述第二收发机401,还用于接收第一小区所属的第一基站发送的用于请求波束负荷信息的请求消息。
可选地,所述请求消息是第一基站在本基站小区的第一波束的负荷超出第一阈值时发送的,所述请求消息中携带有所述第一波束的波束标识信息和/或所述第二小区的第二波束的波束标识信息,所述第二波束是第一基站期望获得波束负荷信息的波束。
可选地,所述第二波束的覆盖范围与所述第一波束的覆盖范围之 间存在有重叠区域。
可选地,所述请求消息中携带有请求原因的指示信息,所述请求原因为基于波束的负载均衡。
可选地,所述波束标识信息通过波束所使用的参考信号的标识来表征,所述参考信号包括同步信号块SS/PBCH block和/或信道状态信息参考信号CSI-RS。
可选地,所述请求消息还用于指示希望获得的波束负荷信息的类型,所述波束负荷信息的类型包括以下类型中的至少一种:上行物理资源块PRB利用率,下行PRB利用率,上行数据吞吐量,下行数据吞吐量,波束的剩余容量,以及,波束的剩余容量比例。
可选地,所述第二收发机401,还用于向第一基站发送针对所述请求消息的响应消息,所述响应消息携带有所述第二小区的波束负荷信息;和/或,
所述第二收发机401,还用于向第一基站周期性的发送波束负荷更新信息,所述波束负荷更新信息携带有第二小区的波束负荷信息。
可选地,所述第二小区的波束负荷信息为所述第二小区的第一类波束的波束负荷信息;
其中,所述第一类波束为负荷低于第一门限的波束;
或者,所述第一类波束为终端在该波束上的信号接收质量满足第二门限的波束;
或者,所述第一类波束为负荷低于第一门限,且终端在该波束上的信号接收质量满足第二门限的波束。
可选地,所述第一门限或第二门限是协议预定义的,或者是通过基站间接口建立过程中的交互消息发送给第二基站的,或者是通过基站间接口更新接口信息发送给第二基站的,或者是携带在所述请求消息中发送给第二基站的。
可选地,所述第二收发机401,还用于接收所述第一基站发送的切换请求消息;
所述切换请求消息携带有切换原因的指示信息,所述切换原因为 基于波束的负载均衡。
可选地,所述切换请求消息还携带有切换的目标波束的指示信息。
参见图5,本公开的一些实施例提供另一种网络设备500,包括:处理器501、收发机502、存储器503和总线接口。
其中,处理器501可以负责管理总线架构和通常的处理。存储器503可以存储处理器501在执行操作时所使用的数据。
在本公开的一些实施例中,网络设备500还可以包括:存储在存储器503上并可在处理器501上运行的程序,该程序被处理器501执行时实现本公开实施例提供的方法的步骤。
在图5中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器501代表的一个或多个处理器和存储器503代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本公开实施例不再对其进行进一步描述。总线接口提供接口。收发机502可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。
本公开的一些实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现上述网络接入的方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。
可以理解的是,本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控 制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现,可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上面结合附图对本公开的实施例进行了描述,但是本公开并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本公开的启示下,在不脱离本公开宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本公开的保护之内。
Claims (32)
- 一种负载均衡方法,包括:第一小区所属的第一基站,接收第二小区所属的第二基站发送的第二小区的波束负荷信息。
- 根据权利要求1所述的方法,其中,在接收第二基站发送的所述第二小区的波束负荷信息的步骤之前,所述方法还包括:第一基站向相邻基站或相邻小区发送用于请求波束负荷信息的请求消息。
- 根据权利要求2所述的方法,其中,所述向相邻基站或相邻小区发送用于请求波束负荷信息的请求消息的步骤,包括:第一基站在检测到第一小区的第一波束的负荷超出第一阈值时,向相邻基站或相邻小区发送所述请求消息。
- 根据权利要求2或3所述的方法,其中,所述请求消息中携带有所述第一波束的波束标识信息和/或所述第二基站的第二波束的波束标识信息,所述第二波束是第一基站期望获得波束负荷信息的波束。
- 根据权利要求4所述的方法,其特征在于,所述第二波束的覆盖范围与所述第一波束的覆盖范围之间存在有重叠区域。
- 根据权利要求4所述的方法,其中,所述波束标识信息通过波束所使用的参考信号的标识来表征,所述参考信号包括同步信号块SS/PBCH block和/或信道状态信息参考信号CSI-RS。
- 根据权利要求2或3所述的方法,其中,所述请求消息中携带有请求原因的指示信息,所述请求原因为基于波束的负载均衡。
- 根据权利要求2所述的方法,其中,所述请求消息还用于指示希望获得的波束负荷信息的类型,所述波束负荷信息的类型包括以下类型中的至少一种:上行物理资源块 PRB利用率,下行PRB利用率,上行数据吞吐量,下行数据吞吐量,波束的剩余容量,以及,波束的剩余容量比例。
- 根据权利要求1或2所述的方法,其中,接收所述第二基站发送的第二小区的波束负荷信息的步骤,包括:接收所述第二基站针对所述请求消息返回的响应消息,所述响应消息携带有所述第二小区的波束负荷信息;和/或,接收所述第二基站根据所述请求消息周期性发送的波束负荷更新信息,所述波束负荷更新信息携带有第二小区的波束负荷信息。
- 根据权利要求1或2所述的方法,其中,所述第二小区的波束负荷信息为所述第二小区的第一类波束的波束负荷信息;其中,所述第一类波束为负荷低于第一门限的波束;或者,所述第一类波束为终端在该波束上的信号接收质量满足第二门限的波束;或者,所述第一类波束为负荷低于第一门限,且终端在该波束上的信号接收质量满足第二门限的波束。
- 根据权利要求2所述的方法,还包括:第一基站根据至少一个邻区的波束负荷信息,选择出目标小区;以及第一基站从第一小区的终端中选择出待切换终端,将所述待切换终端切换至所述目标小区。
- 根据权利要求11所述的方法,其中,所述根据至少一个邻区的波束负荷信息,选择出目标小区的步骤,包括:从邻区的第二类波束中选择出一个或多个目标波束,根据所述目标波束所属的邻区,确定目标小区;其中,所述第二类波束与所述第一波束的覆盖范围之间存在重叠;或者,所述第二类波束与所述第一波束的覆盖范围之间存在重叠,且波束负荷低于第三门限;或者,所述第二类波束与所述第一波束的覆盖范围之间存在重叠, 波束负荷低于第三门限,且终端在所述第二类波束的信号接收质量满足第四门限。
- 根据权利要求9或12所述的方法,其中,所述第一门限、第二门限、第三门限或第四门限是协议预定义的,或者是通过基站间接口建立过程中的交互消息发送给第二基站的,或者是通过基站间接口更新接口信息发送给第二基站的,或者是携带在所述请求消息中发送给第二基站的。
- 根据权利要求1或2所述的方法,其中,所述将所述待切换终端切换至所述目标小区的步骤,包括:向目标小区发送针对所述待切换终端的切换请求,和/或,向所述待切换终端发送切换至所述目标小区的切换命令。
- 根据权利要求2或14所述的方法,其中,所述切换请求和/或切换命令中携带有切换原因的指示信息,所述切换原因为基于波束的负载均衡。
- 根据权利要求14所述的方法,其中,所述切换请求还携带有切换的目标波束的指示信息。
- 一种负载均衡方法,包括:第二小区所属的第二基站向第一小区所属的第一基站发送所述第二小区的波束负荷信息。
- 根据权利要求17所述的方法,其中,在第二小区所属的第二基站向第一小区所属的第一基站发送所述第二小区的波束负荷信息的步骤之前,所述方法还包括:所述第二基站,接收所述第一基站发送的用于请求波束负荷信息的请求消息;
- 根据权利要求18所述的方法,其中,所述请求消息是第一基站在本基站小区的第一波束的负荷超出第一阈值时发送的,所述请求消息中携带有所述第一波束的波束标识信息和/或所述第二小区的第二波束的波束标识信息,所述第二波束是第一基站期望获得波束负荷信息的波束。
- 根据权利要求19所述的方法,其中,所述第二波束的覆盖范围与所述第一波束的覆盖范围之间存在有重叠区域。
- 根据权利要求18所述的方法,其中,所述请求消息中携带有请求原因的指示信息,所述请求原因为基于波束的负载均衡。
- 根据权利要求19所述的方法,其中,所述波束标识信息通过波束所使用的参考信号的标识来表征,所述参考信号包括同步信号块SS/PBCH block和/或信道状态信息参考信号CSI-RS。
- 根据权利要求18所述的方法,其中,所述请求消息还用于指示希望获得的波束负荷信息的类型,所述波束负荷信息的类型包括以下类型中的至少一种:上行物理资源块PRB利用率,下行PRB利用率,上行数据吞吐量,下行数据吞吐量,波束的剩余容量,以及,波束的剩余容量比例。
- 根据权利要求18所述的方法,其中,第二小区所属的第二基站向第一小区所属的第一基站发送所述第二小区的波束负荷信息步骤,包括:向所述第一基站发送针对所述请求消息的响应消息,所述响应消息携带有所述第二小区的波束负荷信息;和/或,向所述第一基站周期性的发送波束负荷更新信息,所述波束负荷更新信息携带有所述第二小区的波束负荷信息。
- 根据权利要求24所述的方法,其中,所述第二小区的波束负荷信息为所述第二小区的第一类波束的波束负荷信息;其中,所述第一类波束为负荷低于第一门限的波束;或者,所述第一类波束为终端在该波束上的信号接收质量满足第二门限的波束;或者,所述第一类波束为负荷低于第一门限,且终端在该波束上的信号接收质量满足第二门限的波束。
- 根据权利要求25所述的方法,其中,所述第一门限或第二门限是协议预定义的,或者是通过基站间接口建立过程中的交互消息发送给第二基站的,或者是通过基站间接口更新接口信息发送给第二基站的,或者是携带在所述请求消息中发送给第二基站的。
- 根据权利要求19所述的方法,还包括:接收所述第一基站发送的切换请求消息;其中,所述切换请求消息携带有切换原因的指示信息,所述切换原因为基于波束的负载均衡。
- 根据权利要求27所述的方法,其中,所述切换请求消息还携带有切换的目标波束的指示信息。
- 一种第一基站,第一小区属于所述第一基站,所述第一基站包括:第一收发机和第一处理器,其中,所述第一收发机,用于接收第二小区所属的第二基站发送的第二小区的波束负荷信息。
- 一种第二基站,第二小区属于所述第二基站,所述第二基站包括:第二收发机和第二处理器,其中,所述第二收发机,用于向第一小区所属的第一基站发送所述第二小区的波束负荷信息。
- 一种网络设备,包括:存储器、处理器及存储在存储器上并可在处理器上运行的程序,所述程序被所述处理器执行时,实现如权利要求1至28中任一项所述的方法的步骤。
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时,实现如权利要求1至28中任一项所述的方法的步骤。
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KR20230074064A (ko) * | 2020-09-23 | 2023-05-26 | 세키스이가가쿠 고교가부시키가이샤 | 경화성 수지 조성물, 가고정재, 및 전자 부품의 제조 방법 |
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