WO2022133886A1 - 一种资源配置方法、装置、存储介质及卫星通信系统 - Google Patents

一种资源配置方法、装置、存储介质及卫星通信系统 Download PDF

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Publication number
WO2022133886A1
WO2022133886A1 PCT/CN2020/138949 CN2020138949W WO2022133886A1 WO 2022133886 A1 WO2022133886 A1 WO 2022133886A1 CN 2020138949 W CN2020138949 W CN 2020138949W WO 2022133886 A1 WO2022133886 A1 WO 2022133886A1
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Prior art keywords
distance
satellite
resource value
distance range
resource
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PCT/CN2020/138949
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English (en)
French (fr)
Inventor
王新玲
方冬梅
李华栋
林之楠
杨芸霞
鲁志兵
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海能达通信股份有限公司
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Priority to PCT/CN2020/138949 priority Critical patent/WO2022133886A1/zh
Publication of WO2022133886A1 publication Critical patent/WO2022133886A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the present application relates to the field of satellite communications, and in particular, to a resource allocation method, device, storage medium and satellite communication system.
  • the base station processing unit (Base Band Unite, BBU) in the gateway station accesses the network to establish a communication link with the satellite.
  • the gateway station may be connected to multiple satellites at the same time, and any satellite can project one or more beams to the satellite.
  • any beam projected by the satellite to the ground the coverage area of the beam on the ground is called a ground cell, and the beam corresponds to a cell in the gateway station access network (this cell is equivalent to a ground cell).
  • the terminal accesses the cell corresponding to the ground cell in the gateway station access network through the satellite relay, so as to realize the communication between the terminal and the gateway station.
  • wireless resources (hereinafter referred to as resources for convenience of description) are required, for example, the number of synchronous broadcast blocks (SS/PBCH Block, SSB) periodically sent, demodulation reference Number of Signal (Demodulatipn Reference Signal, DMRS) symbols, number of Cell Reference Signal (CRS) symbols, Random Access Physical Channel (Physical Random Access Channel, PRACH) format, Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) ) reuse capability, etc.
  • SS/PBCH Block, SSB demodulation reference Number of Signal
  • CRS Cell Reference Signal
  • PRACH Physical Uplink Control Channel
  • PUCCH Physical Uplink Control Channel
  • the present application provides a resource allocation method, device, storage medium and satellite communication system, which aim to improve the utilization rate of resources in the satellite communication system on the premise of ensuring the demodulation performance required by the terminal.
  • the present application provides a resource allocation method, which is applied to a gateway station, including:
  • the target satellite is any satellite that establishes a communication link with the gateway station;
  • the resource value set corresponding to the distance range to which the distance belongs is taken as the resource value set of the target satellite; between the target satellite and the gateway station
  • the minimum resource value in the resource value set corresponding to the distance range ensures the demodulation performance required by the terminal within the coverage area of the target satellite; within the distance range, at least In some distance ranges, the smaller the minimum distance value in the distance range, the smaller the minimum resource value in the resource value set corresponding to the distance range;
  • the resource value configured for the terminal in the coverage area of the target satellite on the ground is selected.
  • the smaller the minimum distance value in the distance range the smaller the minimum resource value in the resource value set corresponding to the distance range, including:
  • the resource value set corresponding to any of the distance ranges includes: preset resource values corresponding to the preset distance values constituting the distance range respectively; the preset resource values corresponding to any of the preset distance values refer to: Ensure the minimum resource value of the demodulation performance required by the terminals within the coverage area of the target satellite when the distance between the target satellite and the gateway station falls within the target distance range; The minimum preset distance value, the target distance range is the distance range; for the maximum preset distance value constituting the distance range, the target distance range is the distance range, and the maximum preset distance value is the minimum distance Any distance range of values.
  • selecting the resource value configured for the terminal in the coverage area of the target satellite on the ground including:
  • the resource value configured by the terminal is larger, from the resource value set of the target satellite, the resource value configured for the terminal in the coverage area of each satellite cell is obtained.
  • the preset distance ranges do not overlap each other.
  • the determining the distance between the target satellite and the gateway station according to the position of the target satellite includes:
  • the distance between the target satellite and the gateway is determined according to the position of the target satellite every preset time period.
  • the method further includes:
  • the corresponding resource values are respectively sent to the terminals in the coverage area on the ground of each satellite cell of the target satellite.
  • the corresponding resource value is sent to the terminal in the area covered by any satellite cell of the target satellite on the ground by means of broadcast or RRC message.
  • the present application also provides a resource allocation device, including:
  • a first determining module configured to determine the distance between the target satellite and the gateway station according to the position of the target satellite;
  • the target satellite is any satellite that establishes a communication link with the gateway station;
  • the second determination module is configured to, according to the preset correspondence between the distance range and the resource value set, use the resource value set corresponding to the distance range to which the distance belongs as the resource value set of the target satellite;
  • the minimum resource value in the resource value set corresponding to the distance range ensures the demodulation performance required by the terminal within the coverage area of the target satellite ;
  • the smaller the minimum distance value in the distance range the smaller the minimum resource value in the resource value set corresponding to the distance range;
  • the selecting module is configured to select, from the resource value set of the target satellite, the resource value configured for the terminal in the coverage area of the target satellite on the ground.
  • the present application further provides a readable storage medium, including: the storage medium includes a stored program, wherein the program executes any one of the resource configuration methods described above.
  • the present application also provides a gateway station, which includes at least one processor, and at least one memory and a bus connected to the processor; wherein the processor and the memory pass through the bus Complete mutual communication; the processor is configured to call the program instructions in the memory to execute any one of the resource configuration methods described above.
  • the application also provides a satellite communication system, including: a satellite, a gateway station and a terminal;
  • the gateway station applies any one of the resource configuration methods described above.
  • the gateway station determines the distance between the target satellite and the gateway station according to the position of the target satellite, wherein the target satellite establishes a communication link with the gateway station For any satellite, according to the preset correspondence between the distance range and the resource value set, the resource value set corresponding to the distance range to which the distance belongs is used as the resource value set of the target satellite. From the resource value set of the target satellite, the resource value configured for the terminal in the coverage area of the target satellite on the ground is selected.
  • the resource value selected from the resource value set of the target satellite is the resource value configured by the terminal in the coverage area of the target satellite on the ground, which can ensure the demodulation performance of the terminal.
  • the solution of the present application for sampling can allocate a resource value smaller than the uniform resource value used in the prior art to satellites with a smaller distance from the gateway station. Therefore, , the solution provided by this application can improve the resource utilization rate of the satellite communication system. Therefore, by adopting the solution provided by the present application, the resource utilization rate of the satellite communication system can be improved on the premise of ensuring the demodulation performance required by the terminal.
  • FIG. 1 is a schematic diagram of a satellite communication system disclosed in an embodiment of the application.
  • FIG. 2 is a flowchart of a resource configuration method disclosed in an embodiment of the present application
  • FIG. 3 is a schematic diagram of a process for determining a distance range and a resource value set disclosed in an embodiment of the present application
  • FIG. 4 is a schematic structural diagram of a resource configuration apparatus disclosed in an embodiment of the present application.
  • the inventor of the present application found in the research that in the satellite communication system, the satellite moves according to the preset orbit, and during the movement, the distance between the satellite and the gateway changes, that is, the terminal and the gateway communicate through satellite relays During the process, the total distance between the terminal and the satellite and the satellite and the gateway station is changing.
  • the gateway station needs to configure the resource value for the terminal.
  • the embodiments of the present application are suitable for satellite communication systems, especially for low-orbit satellite communication systems and medium-orbit satellite communication systems.
  • the embodiment of the present application takes a gateway station and any satellite that establishes a communication link with the gateway station as an example to introduce the process of configuring resources for the satellite by the gateway station.
  • the embodiment of the present application uses the satellite called the target satellite.
  • FIG. 1 is a schematic diagram of a scenario of a satellite information system provided by an embodiment of the present application. It can be seen from FIG. 1 that there are five satellites that establish a communication link with a gateway station, namely satellite 1, satellite 2, satellite 3, and satellite. 4 and satellite 5. During the movement of the satellites, the distances between the satellite 1, the satellite 2, the satellite 3, the satellite 4 and the satellite 5 and the gateway are different respectively. Assuming that satellite 5 is the target satellite, satellite 5 has three satellite cells, which are satellite cell 1, satellite cell 2 and satellite cell 3 in order from left to right, wherein satellite cell 2 has the smallest distance from the target satellite.
  • FIG. 2 provides a resource configuration method according to an embodiment of the present application, comprising the following steps:
  • the preset trigger condition may be that the time reaches the preset time.
  • the preset time is arranged in the order of the preset time, and the duration between two adjacent preset times may be the preset duration.
  • the value of the preset duration may be determined according to the actual situation, and this embodiment does not limit the value of the preset duration.
  • the target satellite in the ephemeris information reaches any preset time, according to the position of the target satellite at the preset time, determine the distance between the target satellite and the gateway station at the preset time, specifically, according to the satellite
  • the calculation method of the distance between the position calculation satellite and the gateway station is the prior art, which will not be repeated here.
  • the resource value set corresponding to the distance range to which the distance belongs is used as the resource value set of the target satellite.
  • a plurality of distance ranges are set in advance, and a resource value set is set in advance for each distance range.
  • the multiple preset distance ranges may not overlap with each other, or may overlap, and this embodiment does not limit whether the multiple preset distance ranges overlap.
  • the distance range and the corresponding resource value set must meet the following two conditions:
  • the first condition the minimum resource value in the resource value set corresponding to any distance range, to ensure that when the distance between the target satellite and the gateway station falls within the distance range, the demodulation required by the terminal within the coverage area of the target satellite performance.
  • the second condition in at least part of the distance range within the distance range, the smaller the minimum distance value in the distance range is, the smaller the minimum resource value in the resource value set corresponding to the distance range is.
  • the smaller the minimum distance value in the distance range the smaller the minimum resource value in the resource value set corresponding to the distance range.
  • the resource value set corresponding to any distance range includes: preset resource values corresponding to the preset distance values constituting the distance range respectively.
  • the preset resource value corresponding to any preset distance value refers to the minimum demodulation performance required by the terminal within the coverage area of the target satellite under the condition that the distance between the target satellite and the gateway station is within the target distance range.
  • the resource value set corresponding to the distance range to which the distance belongs is unique.
  • the method of selecting the resource value set of the target satellite may include: Among the resource value sets corresponding to the distance sets respectively, the resource value set with the smallest resource value is used as the resource value set of the target satellite.
  • other methods can also be used to select the resource value set of the target satellite from the resource value sets corresponding to multiple distance ranges to which the distance belongs. limited.
  • the resource value set includes at least one resource value, wherein there may be multiple resource values in the resource value set.
  • the minimum resource value in the resource value set of the target satellite can ensure the demodulation performance required by the terminal whose distance from the gateway station belongs to the satellite coverage area of the distance range, Therefore, the minimum resource value in the resource value set of the target satellite can be used as the resource value of the terminal within the coverage area of the current target satellite.
  • the distances between the coverage areas of different satellite cells and the satellites are different.
  • the resource value allocated to the terminal in the coverage area of the target satellite is larger, the resource value is allocated to the terminal in the coverage area of different satellite cells from the resource value set of the target satellite.
  • the gateway station may send the corresponding resource value to the terminals within the coverage area of each satellite cell by means of broadcast or RRC message.
  • the gateway station is the one within the coverage area of this satellite cell 1.
  • the number of SSB periodic sending times sent by the terminal is 4.
  • the resource value selected from the resource value set of the target satellite for the terminal configuration in the coverage area of the target satellite on the ground can ensure the demodulation performance of the terminal.
  • the solution of the present application for sampling can allocate a resource value smaller than the uniform resource value used in the prior art to satellites with a smaller distance from the gateway station. Therefore, , the solution provided by this application can improve the resource utilization rate of the satellite communication system. Therefore, by adopting the solution provided by the present application, the resource utilization rate of the satellite communication system can be improved on the premise of ensuring the demodulation performance required by the terminal.
  • FIG. 3 provides an embodiment of the present application.
  • a process for determining a distance range and a resource value set comprising the following steps:
  • the preset distance values are the distances between the target satellite at each preset position and the gateway when the target satellite is located at different preset positions during the movement of the target satellite on the preset orbit.
  • the minimum resource value corresponding to each distance value in the preset multiple distance values can be obtained in two ways, one way is to obtain by manual measurement, and the other way is to determine by preset formula.
  • the formula for determining the resource value under the distance value may be as follows:
  • CellconfigDL represents the downlink resource value
  • Distance_Feeder is the distance between the target satellite and the gateway
  • TXgNB is the transmitter performance of the gateway
  • RXrelay is the satellite receiver performance
  • Power_Feedermax is the maximum transmit power of the feeder link
  • is the feeder Link adjustment factor.
  • Distance_Service is the distance between the target satellite and the terminal
  • TXrelay is the satellite transmitter performance
  • RXUE is the terminal receiver performance
  • Power_Servicemax is the maximum transmit power of the user link
  • is the user link adjustment factor
  • is the adjustment factor, such as demodulation performance difference requirements, etc.
  • CellconfigUL is the uplink resource value
  • RXgNB is the target satellite transmitter performance
  • TXrelay is the gateway receiver performance
  • is the feeder link adjustment factor
  • is the user link adjustment factor
  • RXrelay is the satellite receiver performance
  • TXUE is the transmission performance of the terminal
  • is the adjustment factor, such as the requirement for difference in demodulation performance.
  • the values of ⁇ , ⁇ , ⁇ , ⁇ , ⁇ and ⁇ can be determined according to the actual situation. Specifically, the data can be collected manually, including: uplink resource value, the distance between the satellite and the gateway, and the distance between the satellite and the terminal. The distance of ⁇ , ⁇ , ⁇ , ⁇ , ⁇ and ⁇ is determined according to the collected data. Certainly, the values of these parameters may also be determined in other manners, and this embodiment does not limit the specific implementation manner.
  • the manner of selecting the distance value is not limited in this embodiment.
  • the selected distance values are N1, N2, and N3, respectively, where N1 ⁇ N2 ⁇ N3, and the formed distance ranges include (negative infinity, N1), (N1, N2), (N2, N3), and (N3, Positive infinity). Among them, the obtained distance ranges do not overlap each other.
  • the distance ranges obtained in this step may also overlap.
  • the distance ranges formed by N1, N2 and N3 may include: (negative infinity, N1), (N1, N2), (N2, N3 ), (N3, positive infinity), and (N1, N3), where (N1, N2) and (N1, N3) are distance ranges with overlapping.
  • the target distance range of the minimum distance value is the distance range.
  • the target distance range of the maximum distance value is any distance range in which the maximum distance value is the minimum distance value in the determined distance range.
  • the resource value corresponding to the minimum distance value is the minimum resource value to ensure the demodulation performance of the terminal within the coverage area of the target satellite when the distance between the target satellite and the gateway station belongs to the target distance range corresponding to the minimum distance value.
  • the resource value corresponding to the maximum distance value is the minimum resource value to ensure the demodulation performance of the terminal within the coverage area of the target satellite when the distance between the target satellite and the gateway station falls within the target distance range corresponding to the maximum distance value.
  • the target distance range corresponding to N1 is (N1, N2)
  • the maximum resource value among the minimum resource values corresponding to the preset distance values belonging to (N1, N2) is taken as The resource value corresponding to N1.
  • the target distance range corresponding to N1 is (N1, N3)
  • the maximum resource value among the minimum resource values corresponding to the preset distance values belonging to (N1, N3) is taken as The resource value corresponding to N1.
  • the resource is the number of SSB periodic transmissions
  • the number of SSB periodic transmissions corresponding to N1 is 2
  • the number of SSB periodic transmissions corresponding to N2 is 4
  • the number of SSB periodic transmissions corresponding to N3 is 8.
  • the resource value set corresponding to the distance range is ⁇ 2,4 ⁇ ; for the distance range formed by N2 and N3, the resource value set corresponding to the distance range is ⁇ 4,8 ⁇ .
  • the resource value set corresponding to the distance range is ⁇ 2 ⁇ , and for the distance range formed by N3 and positive infinity, the resource value set corresponding to the distance range is ⁇ 8 ⁇ .
  • the determined resource value set corresponding to any distance range represents: when the distance between the target satellite and the gateway station When it belongs to the distance range, the value of the resource value of the resource is the resource value from the smallest resource value to the largest resource value in the resource value set.
  • the determined resource value set corresponding to any distance range indicates: when the distance between the target satellite and the gateway station belongs to the distance range, the resource value of the resource The value is any integer resource value from the smallest resource value to the largest resource value in the resource value set.
  • the resource value can be an integer
  • the resource value set corresponding to the distance range includes only one resource value
  • the minimum value of the resource value is the resource value set. The resource value in .
  • the union of the resource value sets corresponding to all the distance ranges is used as the value range of the target satellite under this resource.
  • the value range of the target satellite under each resource, and the range of system overhead are shown in Table 1 below.
  • the system overhead value represents the percentage of downlink physical layer resource overhead to the total number of downlink physical layer resources, or the uplink physical layer Resource overhead as a percentage of total uplink physical layer resources.
  • Cell radio resource parameter item Value range example Example of System Overhead Range Number of SSB cycles sent 2/4/8 0.11%/0.22%/0.43% Number of DMRS symbols 2/3/4 14.3%, 21.4%, 28.6% Number of CRS symbols 1/2 7.1%, 14.3% PRACH format Format1/2/3/4 0.4%/0.9%/2%/3.4% PUCCH format1 multiplexing capability 1-72 21.9%-0.4% SRS multi-user multiplexing capability 1-32 14.3%-0.45% PDCCH aggregation level range 4/8/16/32 14.3%/21.4%/21.4% Up and down MCS range 0-28 Channel pre-judgment, fast adaptation Up and down PSD range PmaxPmin Channel pre-judgment, fast adaptation
  • the above process of determining the distance range and the resource value set corresponding to each distance range is determined by taking the target satellite as an example.
  • the satellite is a reference satellite, and a distance range and a resource value set corresponding to each distance range are determined. This embodiment only provides an implementation manner, and this embodiment does not limit the specific implementation manner.
  • the demodulation performance required by the terminal within the coverage area of the satellite whose distance from the gateway station belongs to the distance range can be ensured, and in the obtained distance range
  • the smaller the minimum distance value in the distance range the smaller the minimum resource value in the resource value set corresponding to the distance range, so as to ensure that the smaller the distance from the gateway station, the smaller the resource value that the satellite is configured with.
  • a resource configuration apparatus provided by an embodiment of the present application includes: a first determination module 401, a second determination module 402, and a selection module 403'.
  • the first determining module 401 is configured to determine the distance between the target satellite and the gateway station according to the position of the target satellite, and the target satellite is any satellite that establishes a communication link with the gateway station.
  • the second determining module 402 is configured to, according to the preset correspondence between the distance range and the resource value set, use the resource value set corresponding to the distance range to which the distance belongs as the resource value set of the target satellite; the distance between the target satellite and the gateway station
  • the minimum resource value in the resource value set corresponding to the distance range ensures the demodulation performance required by the terminal within the coverage area of the target satellite; in at least part of the distance range within the distance range, the smallest resource value in the distance range The smaller the distance value, the smaller the minimum resource value in the resource value set corresponding to the distance range.
  • the selecting module 403 is configured to select, from the resource value set of the target satellite, the resource value configured for the terminal in the coverage area of the target satellite on the ground.
  • the second determining module 402 is configured to, according to the preset correspondence between the distance range and the resource value set, take the resource value set corresponding to the distance range to which the distance belongs as the resource value set of the target satellite, and at least part of the resource value set within the distance range.
  • the smaller the minimum distance value in the distance range the smaller the minimum resource value in the resource value set corresponding to the distance range, including:
  • the second determining module 402 is specifically configured to, according to the preset correspondence between the distance range and the resource value set, take the resource value set corresponding to the distance range to which the distance belongs as the resource value set of the target satellite; The smaller the minimum distance value is, the smaller the minimum resource value in the resource value set corresponding to the distance range is.
  • the resource value set corresponding to any of the distance ranges includes: preset resource values corresponding to the preset distance values constituting the distance range, respectively, and the preset resource value corresponding to any preset distance value refers to:
  • the minimum resource value of the demodulation performance required by the terminal within the coverage area of the target satellite for the minimum preset distance value constituting the distance range, the target distance range is the distance range; for the maximum preset distance value constituting the distance range, the target distance range is any distance range within the distance range with the maximum preset distance value as the minimum distance value.
  • the selection module 403 is configured to select, from the resource value set of the target satellite, the resource value configured for the terminal in the coverage area of the target satellite on the ground, including:
  • the selection module 403 is specifically configured to, when the target satellite has multiple satellite cells, the larger the distance between the coverage area formed by any satellite cell on the ground and the target satellite, the larger the distance between the coverage area of the satellite cell on the ground and the target satellite. According to the principle that the resource value configured by the terminal is larger, from the resource value set of the target satellite, the resource value configured for the terminal in the coverage area of each satellite cell is obtained.
  • the determining module 401 is configured to determine the distance between the target satellite and the gateway station according to the position of the target satellite, including:
  • the determining module 401 is specifically configured to determine the distance between the target satellite and the gateway according to the position of the target satellite every preset time period.
  • the preset distance ranges do not overlap each other.
  • the device further includes: a sending module 404, configured to, after selecting the resource value configured for the terminal in the coverage area of the target satellite on the ground from the resource value set of the target satellite, send each satellite of the target satellite to each satellite of the target satellite.
  • the terminals in the coverage area of the cell on the ground transmit the corresponding resource values respectively.
  • the sending module 404 sends the corresponding resource value by broadcasting or an RRC message to a terminal in an area covered by any satellite cell of the target satellite on the ground.
  • An embodiment of the present application further provides a storage medium, including a stored program, wherein the program executes any one of the foregoing resource configuration methods.
  • An embodiment of the present application also provides a gateway station, including at least one processor, and at least one memory and a bus connected to the processor; wherein, the processor and the memory communicate with each other through the bus. communication; the processor is configured to invoke the program instructions in the memory to execute any one of the above resource configuration methods.
  • An embodiment of the present application further provides a satellite communication system, including: a gateway station, a satellite, and a terminal, wherein the gateway station is configured with a resource configuration apparatus corresponding to FIG. 4 .
  • the functions described in the methods of the embodiments of the present application are implemented in the form of software functional units and sold or used as independent products, they may be stored in a readable storage medium of a computing device.
  • the part of the embodiments of the present application that contribute to the prior art or the part of the technical solution may be embodied in the form of a software product, and the software product is stored in a storage medium and includes several instructions to make a
  • a computing device which may be a personal computer, a server, a mobile computing device or a network device, etc.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请公开了一种资源配置方法、装置、存储介质及卫星通信系统,其中,方法包括:依据目标卫星的位置确定目标卫星与信关站间的距离,依据距离范围与资源值集合间的预设对应关系,将距离所属的距离范围对应的资源值集合,作为目标卫星的资源值集合,任一距离范围对应的资源值集合中的最小资源值,确保与信关站间的距离属于该距离范围的卫星的覆盖区域内的终端的解调性能,距离范围内至少部分距离范围的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小,从目标卫星的资源值集合中,选取为目标卫星在地面上的覆盖区域内的终端配置的资源值。本申请可以实现在确保终端所需的解调性能的前提下,提高卫星通信系统的资源利用率。

Description

一种资源配置方法、装置、存储介质及卫星通信系统 技术领域
本申请涉及卫星通信领域,尤其涉及一种资源配置方法、装置、存储介质及卫星通信系统。
背景技术
卫星通信系统中,信关站内的基站处理单元(Base Band Unite,BBU)接入网与卫星建立通信链路,信关站可能同时连接多个卫星,任意一个卫星可以投射一个或多个波束到地面,该卫星投射的任意一个波束到地面,该波束在地面的覆盖区域称为一个地面小区,同时该波束在信关站接入网对应一个小区(该小区等价于地面小区)。当终端进入地面小区后,终端通过该卫星中继接入到信关站接入网中与该地面小区对应的小区,实现终端与信关站间的通信。
在终端与信关站通过卫星中继的方式进行通信的过程中,需要无线资源(为了描述方便,以下简称资源),例如,同步广播块(SS/PBCH Block,SSB)周期发送数量、解调参考信号(Demodulatipn Reference Signal,DMRS)符号数量、小区参考信号(Cell Reference Signal,CRS)符号数量、随机接入物理信道(Physical Random Access Channel,PRACH)格式、上行物理控制信道(Physical Uplink Control Channel,PUCCH)复用能力等。
如何实现在确保终端所需的解调性能的前提下,提高卫星通信系统中资源的利用率,是急需解决的问题。
发明内容
本申请提供了一种资源配置方法、装置、存储介质及卫星通信系统,目的在于实现确保终端所需的解调性能的前提下,提高卫星通信系统中资源的利用率。
为了实现上述目的,本申请提供了以下技术方案:
本申请提供了一种资源配置方法,应用于信关站,包括:
依据目标卫星的位置确定所述目标卫星与所述信关站间的距离;所述目标卫星为与所述信关站建立通信链路的任一卫星;
依据距离范围与资源值集合间的预设对应关系,将所述距离所属的距离范围对应的资源值集合,作为所述目标卫星的资源值集合;在所述目标卫星与所述信关站间的距离属于所述距离范围的情况下,所述距离范围对应的资源值集合中的最小资源值,确保所述目标卫星的覆盖区域内的终端所需的解调性能;所述距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小;
从所述目标卫星的资源值集合中,选取为所述目标卫星在地面上的覆盖区域内的终端配置的资源值。
可选的,所述距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小,包括:
所述距离范围内,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小。
可选的,任一所述距离范围对应的资源值集合包括:构成该距离范围的预设距离值分别对应的预设资源值;所述任一预设距离值对应的预设资源值指:确保在所述目标卫星与所述信关站间的距离属于目标距离范围的情况下,所述目标卫星的覆盖区域内的终端所需的解调性能的最小资源值;对于构成该距离范围的最小预设距离值,所述目标距离范围为该距离范围;对于构成该距离范围的最大预设距离值,所述目标距离范围为所述距离范围中,以该最大预设距离值为最小距离值的任一距离范围。
可选的,所述从所述目标卫星的资源值集合中,选取为所述目标卫星在地面上的覆盖区域内的终端配置的资源值,包括:
在所述目标卫星存在多个卫星小区的情况下,按照任一所述卫星小区在地面上形成的覆盖区域与所述目标卫星间的距离越大,为该卫星小区在地面上的覆盖区域内的终端配置的资源值越大的原则,从所述目标卫星的资源值集合中,为每个所述卫星小区的覆盖区域中的终端配置的资源值。
可选的,所述预设距离范围间互不重叠。
可选的,所述依据目标卫星的位置确定所述目标卫星与所述信关站间的距离,包括:
每隔预设时长,依据所述目标卫星的位置,确定所述目标卫星与所述信关站间的距离。
可选的,在所述从所述目标卫星的资源值集合中,选取为所述目标卫星在地面上的覆盖区域内的终端配置的资源值之后,还包括:
向所述目标卫星的各个卫星小区在地面上的覆盖区域内的终端,分别发送对应的资源值。
可选的,向所述目标卫星的任一卫星小区在地面上覆盖的区域内的终端,通过广播或RRC消息的方式发送对应的资源值。
本申请还提供了一种资源分配装置,包括:
第一确定模块,用于依据目标卫星的位置确定所述目标卫星与所述信关站间的距离;所述目标卫星为与所述信关站建立通信链路的任一卫星;
第二确定模块,用于依据距离范围与资源值集合间的预设对应关系,将所述距离所属的距离范围对应的资源值集合,作为所述目标卫星的资源值集合;在所述目标卫星与所述信关站间的距离属于所述距离范围的情况下,所述距离范围对应的资源值集合中的最小资源值,确保所述目标卫星的覆盖区域内的终端所需的解调性能;所述距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小;
选取模块,用于从所述目标卫星的资源值集合中,选取为所述目标卫星在地面上的覆盖区域内的终端配置的资源值。
本申请还提供了一种可读存储介质,包括:所述存储介质包括存储的程序,其中,所述程序执行上述任意所述的任意一种资源配置方法。
本申请还提供了一种信关站,所述信关站包括至少一个处理器、以及与所述处理器连接的至少一个存储器、总线;其中,所述处理器、所述存储器通过所述总线完成相互间的通信;所述处理器用于调用所述存储器中的程序指令,以执行上述任一所述的资源配置方法。
本申请还提供了一种卫星通信系统,包括:卫星、信关站和终端;
所述终端与所述信关站间通过所述卫星中继进行通信;
所述信关站应用上述任意一种所述的资源配置方法。
本申请所述的资源配置方法、装置、存储介质及卫星通信系统中,信关站,依据目标卫星的位置确定目标卫星与信关站间的距离,其中,目标卫星为与信关站建立通信链路的任一卫星,依据距离范围与资源值集合间的预设对应关系,将距离所属的距离范围对应的资源值集合,作为目标卫星的资源值集合。从目标卫星的资源值集合中,选取为目标卫星在地面上的覆盖区域内的终端配置的资源值。
由于任一距离范围对应的资源值集合中的最小资源值,确保在目标卫星与信关站间的距离属于该距离范围的情况下,目标卫星的覆盖区域内的终端所需的解调性能,因此,从目标卫星的资源值集合中选取的为目标卫星在地面上的覆盖区域内的终端配置的资源值,能够确保终端的解调性能。
对于目标卫星运动过程中,在目标卫星与信关站间的不同距离分别属于不同的距离范围时,由于距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小,因此,与信关站间的距离越小的卫星被配置的资源值越小。因此,相比于现有技术中采用统一的资源值,采样本申请的方案可以对与信关站间的距离较小的卫星分配的资源值小于现有技术中所采用的统一的资源值,因此,本申请提供的方案可以提高卫星通信系统的资源利用率。因此,采用本申请提供的方案,可以实现在确保终端所需的解调性能的前提下,提高卫星通信系统的资源利用率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术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申请的一些实施例,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1为本申请实施例公开的一种卫星通信系统的示意图;
图2为本申请实施例公开的一种资源配置方法的流程图;
图3为本申请实施例公开的距离范围与资源值集合的确定过程示意图;
图4为本申请实施例公开的一种资源配置装置的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,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,都属于本申请保护的范围。
本申请的发明人在研究中发现,在卫星通信系统中,卫星按照预设轨道运动,在运动过程中,卫星与信关站间的距离发生变化,即终端与信关站间通过卫星中继进行通信的过程中,终端到卫星以及卫星到信关站间的总距离在发生变化,为了确保终端在通信过程中所需的解调性能,信关站需要为终端配置资源值,如果按照现有的陆地通信系统中为终端配置的固定的资源值,在卫星通信系统中,在卫星与信关站间的距离较小时,采用固定的资源值可以满足终端所需的解调性能,但是,会造成资源的浪费。因此,在本申请实施例中,在确保终端所需的解调性能的前提下,对与信关站间的距离不同的卫星覆盖区域内的终端分配不同的资源值,并且,距离越小分配的资源值越小,进而在卫星通信系统中终端所需的解调性能的前提下,提高资源的利用率。
本申请实施例适用于卫星通信系统,尤其适用于低轨卫星通信系统和中轨卫星通信系统。本申请实施例以一个信关站以及与该信关站建立通信链路的任意一个卫星为例,介绍该信关站为该卫星配置资源的过程,为了描述方便,本申请实施例将该卫星称为目标卫星。
图1为本申请实施例提供的一种卫星信息系统的场景示意图,从图1中可以看出与信关站建立通信链路的卫星有5个,分别是卫星1、卫星2、卫星3、卫星4和卫星5。在卫星运动的过程中,卫星1、卫星2、卫星3、卫星4和卫星5分别与信关站间的距离不同。假设卫星5为目标卫星,卫星5存在三个卫星小区,按照从左到右的方向依次为卫星小区1、卫星小区2和卫星小区3,其中,卫星小区2距离目标卫星的距离 最小。
图2为本申请实施例提供的一种资源配置方法,包括以下步骤:
S201、在满足预设触发条件的情况下,依据星历信息中目标卫星的位置确定目标卫星与信关站间的距离。
在本步骤中,预设触发条件可以为时间达到预设时刻,具体的,按照预设时刻的先后顺序进行排列,相邻两个预设时刻间的时长可以为预设时长。其中,预设时长的取值可以根据实际情况确定,本实施例不对预设时长的取值作限定。
依据星历信息中目标卫星在达到任意一个预设时刻的情况下,依据目标卫星在该预设时刻的位置,确定该目标卫星在该预设时刻与信关站间的距离,具体的,依据卫星的位置计算卫星与信关站间的距离的计算方式为现有技术,这里不再赘述。
S202、依据距离范围与资源值集合间的预设对应关系,将距离所属的距离范围对应的资源值集合,作为目标卫星的资源值集合。
在本实施例中,事先设定了多个距离范围,为每个距离范围事先设定了资源值集合。需要说明的是,其中,事先设定的多个距离范围可以互不重叠,也可以存在重叠,本实施例不对事先设定的多个距离范围间是否重叠作限定。
其中,距离范围与对应的资源值集合需满足以下两个条件:
第一条件:任一距离范围对应的资源值集合中的最小资源值,确保在目标卫星与信关站间的距离属于该距离范围的情况下,目标卫星的覆盖区域内的终端所需的解调性能。
第二条件:距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小。
可选的,在本实施例中,也可以所有的距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小。
可选的,在本实施例中,任一距离范围对应的资源值集合包括:构成该距离范围的预设距离值分别对应的预设资源值。其中,任一预设距离值对应的预设资源值指:确保在目标卫星与信关站间的距离属于目标距离范围的情况下,目标卫星的覆盖区域 内的终端所需的解调性能的最小资源值,其中,目标范围为距离范围中最小距离值为该距离值的距离范围。
具体的,如何设定距离范围以及距离范围对应的资源值集合,在以下图3对应的实施例中进行介绍。当然,图3对应的实施例只是一种实现方式,本实施例不对具体的实现方式作限定。
在本实施例中,在距离范围与资源值集合间的预设对应关系中,距离范围间互不重叠的情况下,距离所属的距离范围对应的资源值集合是唯一的。在距离范围间存在重叠的情况下,距离所属的距离范围可能存在多个,从距离所属的多个距离范围分别对应的资源集合中,选取目标卫星的资源值集合的方式可以包括:将距离所属的距离集合分别对应的资源值集合中,具有最小资源值的资源值集合作为目标卫星的资源值集合。当然,在实际中,还可以采用其他的方式从距离所属的多个距离范围分别对应的资源值集合中,选取目标卫星的资源值集合,本实施例不对选取目标卫星的资源值集合的具体方式作限定。
S203、从目标卫星的资源值集合中,选取为目标卫星在地面上的覆盖区域内的终端配置的资源值。
在本实施例中,资源值集合中包括至少一个资源值,其中,资源值集合中可能存在多个资源值。目标卫星的卫星小区可能有一个,也可能有多个。以下分别针对目标卫星只有一个卫星小区和目标卫星存在多个卫星小区,分别介绍为卫星小区的覆盖区域内的终端分配资源值的方式:
在目标卫星的卫星小区只有一个的情况下,由于目标卫星的资源值集合中的最小资源值能够确保,与信关站间的距离属于该距离范围的卫星覆盖区域的终端所需的解调性能,因此,可以将目标卫星的资源值集合中的最小资源值,作为当前目标卫星的覆盖区域内的终端的资源值。
在目标卫星的卫星小区存在多个的情况下,不同卫星小区的覆盖区域与卫星间的距离不同,在本实施例中,按照卫星小区的覆盖区域与卫星间的距离越大,为该卫星小区的覆盖区域内的终端分配的资源值越大的原则,从目标卫星的资源值集合中为不同卫星小区的覆盖区域的终端分配资源值。
S204、向目标卫星的覆盖区域内的终端发送配置的资源值。
具体的,在本步骤中,信关站可以采用广播或RRC消息的方式为每个卫星小区的覆盖区域内的终端,发送对应的资源值。
例如,对于卫星小区1,假设资源为SSB周期发送次数,并且,S203中为卫星小区1分配的SSB周期发送次数为4,则本步骤中,信关站为该卫星小区1的覆盖区域内的终端发送的SSB周期发送次数为4。
在本实施例中,由于任一距离范围对应的资源值集合中的最小资源值,确保在目标卫星与信关站间的距离属于该距离范围的情况下,目标卫星的覆盖区域内的终端所需的解调性能,因此,从目标卫星的资源值集合中选取的为目标卫星在地面上的覆盖区域内的终端配置的资源值,能够确保终端的解调性能。
对于目标卫星运动过程中,在目标卫星与信关站间的不同距离分别属于不同的距离范围时,由于距离范围内至少部分距离范围中,距离范围中的最小距离值越小,该距离范围对应的资源值集合中的最小资源值越小,因此,与信关站间的距离越小的卫星被配置的资源值越小。因此,相比于现有技术中采用统一的资源值,采样本申请的方案可以对与信关站间的距离较小的卫星分配的资源值小于现有技术中所采用的统一的资源值,因此,本申请提供的方案可以提高卫星通信系统的资源利用率。因此,采用本申请提供的方案,可以实现在确保终端所需的解调性能的前提下,提高卫星通信系统的资源利用率。
对每种资源,距离范围与资源值集合的确定原理相同,以下以一种资源(SSB周期发送次数)为例进行介绍,具体的,如图3所示,图3为本申请实施例提供的一种距离范围与资源值集合的确定过程,包括以下步骤:
S301、获取预设的多个距离值中每个距离值下可以确保终端所需的解调性能的最小资源值,得到预设的多个距离值中每个距离值对应的最小资源值。
在本步骤中,预设的多个距离值为目标卫星在预设轨道上运动过程中,对目标卫星位于不同预设位置时,处于各个预设位置处的目标卫星与信关站间的距离。
在本步骤中,预设的多个距离值中每个距离值对应的最小资源值,可以采用两种 方式获取,一种获取方式为通过人工测量,另一种方式为通过预设公式确定。
具体的,对于任意一个预设的距离值,确定该距离值下的资源值的公式可以如下所示:
Figure PCTCN2020138949-appb-000001
Figure PCTCN2020138949-appb-000002
式中,CellconfigDL表示下行资源值,Distance_Feeder是目标卫星与信关站间的距离,TXgNB是信关站发射机性能,RXrelay是卫星接收机性能,Power_Feedermax是馈电链路最大发射功率,α是馈电链路调整因子。Distance_Service是目标卫星与终端间的距离,TXrelay是卫星发射机性能,RXUE是终端接收机性能,Power_Servicemax是用户链路最大发射功率,β是用户链路调整因子,χ是调整因子,例如解调性能差异要求等。
式中,CellconfigUL表示上行资源值,RXgNB是目标卫星发射机性能、TXrelay是信关站接收机性能,δ是馈电链路调整因子,ε是用户链路调整因子,RXrelay是卫星接收机性能,TXUE是终端发射性能,φ是调整因子,例如解调性能差异要求等。
式中,α、β、χ、δ、ε和φ的取值可以实际情况确定,具体的,可以通过人工采集的数据,包括:上行资源值、卫星与信关站间的距离和卫星与终端间的距离,并根据采集得到的数据,确定α、β、χ、δ、ε和φ的取值。当然,还可以采用其他方式确定这些参数的取值,本实施例不对具体的实现方式作限定。
S302、将预设的距离值按照从小到大的顺序进行排列,并从预设的距离值中选取距离值。
具体的,选取距离值的方式,本实施例不作限定。
S303、将选取的距离值以及正负无穷中,两个距离值构成的距离范围作为一个距离范围。
例如,选取的距离值分别为N1、N2和N3,其中,N1<N2<N3,构成的距离范围包括(负无穷,N1)、(N1,N2)、(N2,N3),以及(N3,正无穷)。其中,得到的距离范围互不重叠。
在本实施例中,本步骤得到的距离范围间也可以存在重叠,例如,通过N1、N2和N3构成的距离范围可以包括:(负无穷,N1)、(N1,N2)、(N2,N3)、(N3,正无穷),以及(N1,N3),其中,(N1,N2)和(N1,N3)是具有重叠的距离范围。
S304、确定每个距离范围中的最小距离值与最大距离值分别对应的资源值。
针对选取的任一距离范围,确定该距离范围的最小距离值和最大距离值分别对应的目标距离范围。其中,最小距离值的目标距离范围为该距离范围。最大距离值的目标距离范围为以确定出的距离范围中该最大距离值为最小距离值的任一距离范围。
最小距离值对应的资源值为:在目标卫星与信关站间的距离属于最小距离值对应的目标距离范围的情况下,确保目标卫星的覆盖区域内的终端的解调性能的最小资源值。最大距离值对应的资源值为:在目标卫星与信关站间的距离属于最大距离值对应的目标距离范围的情况下,确保目标卫星的覆盖区域内的终端的解调性能的最小资源值。
以距离范围为(N1,N2)为例,N1对应的目标距离范围为(N1,N2),对于属于(N1,N2)的预设距离值分别对应的最小资源值中的最大资源值,作为N1对应的资源值。以距离值为(N1,N3)为例,N1对应的目标距离范围为(N1,N3),对于属于(N1,N3)的预设距离值分别对应的最小资源值中的最大资源值,作为N1对应的资源值。
S305、对于任意一个距离范围,将该距离范围中最大距离值和最小距离值分别对应的资源值所组成的集合,作为该距离范围对应的资源值集合。
例如,假设资源为SSB周期发送次数,N1对应的SSB周期发送次数为2,N2对应的SSB周期发送次数为4,N3对应的SSB周期发送次数为8。
对于N1与N2构成的距离范围,该距离范围对应的资源值集合为{2,4},对于N2与N3构成的距离范围,该距离范围对应的资源值集合为{4,8},对于负无穷与N1构成的距离范围,该距离范围对应的资源值集合为{2},对于N3和正无穷构成的距离范围,该距离范围对应的资源值集合为{8}。
需要说明的是,在本申请实施例中,对于资源值可以为非整数的资源,在本步骤中,确定出的任意一个距离范围对应的资源值集合表示:当目标卫星与信关站间的距 离属于该距离范围时,该资源的资源值的取值为该资源值集合中最小资源值到最大资源值中的资源值。
对于资源值只能取整数的资源,在本步骤中,确定出的任意一个距离范围对应的资源值集合表示:当目标卫星与信关站间的距离属于该距离范围时,该资源的资源值的取值为该资源值集合中最小资源值到最大资源值中的任一整数资源值。
无论资源值是否可取整数,对于距离范围对应的资源值集合中只包括一个资源值的情况下,当目标卫星与信关站间的距离属于该距离范围时,资源值的最小取值为资源值集合中的资源值。
在本实施例中,将全部距离范围分别对应的资源值集合的并集,作为该种资源下目标卫星的取值范围。对于多种资源,每种资源下目标卫星的取值范围,以及系统开销范围,如下表1所示。对于任意一种资源,目标卫星在该种资源的取值范围中的任意一种取值的情况下,系统开销值表示下行物理层资源开销占下行物理层总资源数量的百分比,或上行物理层资源开销占上行物理层总资源数量的百分比。
表1
小区无线资源参数项 取值范围示例 系统开销范围示例
SSB周期发送数量 2/4/8 0.11%/0.22%/0.43%
DMRS符号数量 2/3/4 14.3%、21.4%、28.6%
CRS符号数量 1/2 7.1%、14.3%
PRACH格式 Format1/2/3/4 0.4%/0.9%/2%/3.4%
PUCCH format1复用能力 1-72 21.9%-0.4%
SRS多用户复用能力 1-32 14.3%-0.45%
PDCCH聚合等级范围 4/8/16/32 14.3%/21.4%/21.4%
上下行MCS范围 0-28 信道预判,快速自适应
上下行PSD范围 PmaxPmin 信道预判,快速自适应
需要说明的是,上述确定距离范围与每个距离范围对应的资源值集合的过程,是以目标卫星为例进行确定的,当然,在实际中,还可以采用与信关站建立通信链路的其他卫星为参考卫星,确定距离范围以及每个距离范围分别对应的资源值集合,本实 施例只是提供了一种实现方式,本实施例不对具体的实现方式作限定。
只要每个距离范围对应的资源值集合中的最小资源值,可以确保与信关站间的距离属于该距离范围的卫星的覆盖区域内的终端所需的解调性能,并且,得到的距离范围中至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小,以确保与信关站间的距离越小的卫星被配置的资源值越小。
图4为本申请实施例提供的一种资源配置装置,包括:第一确定模块401、第二确定模块402和选取模块403,。
其中,第一确定模块401用于依据目标卫星的位置确定目标卫星与信关站间的距离,目标卫星为与信关站建立通信链路的任一卫星。
第二确定模块402用于依据距离范围与资源值集合间的预设对应关系,将距离所属的距离范围对应的资源值集合,作为目标卫星的资源值集合;在目标卫星与信关站间的距离属于距离范围的情况下,距离范围对应的资源值集合中的最小资源值,确保目标卫星的覆盖区域内的终端所需的解调性能;距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小。
选取模块403用于从目标卫星的资源值集合中,选取为目标卫星在地面上的覆盖区域内的终端配置的资源值。
可选的,第二确定模块402用于依据距离范围与资源值集合间的预设对应关系,将距离所属的距离范围对应的资源值集合,作为目标卫星的资源值集合,距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小,包括:
第二确定模块402具体用于依据距离范围与资源值集合间的预设对应关系,将距离所属的距离范围对应的资源值集合,作为目标卫星的资源值集合;距离范围内,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小。
可选的,任一所述距离范围对应的资源值集合包括:构成该距离范围的预设距离值分别对应的预设资源值,任一预设距离值对应的预设资源值指:确保在目标卫星与信关站间的距离属于目标距离范围的情况下,目标卫星的覆盖区域内的终端所需的解 调性能的最小资源值;对于构成该距离范围的最小预设距离值,目标距离范围为该距离范围;对于构成该距离范围的最大预设距离值,目标距离范围为所述距离范围中,以该最大预设距离值为最小距离值的任一距离范围。
可选的,选取模块403用于从目标卫星的资源值集合中,选取为目标卫星在地面上的覆盖区域内的终端配置的资源值,包括:
选取模块403具体用于在目标卫星存在多个卫星小区的情况下,按照任一卫星小区在地面上形成的覆盖区域与目标卫星间的距离越大,为该卫星小区在地面上的覆盖区域内的终端配置的资源值越大的原则,从目标卫星的资源值集合中,为每个卫星小区的覆盖区域中的终端配置的资源值。
可选的,确定模块401用于依据目标卫星的位置确定目标卫星与信关站间的距离,包括:
确定模块401具体用于每隔预设时长,依据目标卫星的位置,确定目标卫星与信关站间的距离。
可选的,预设距离范围间互不重叠。
可选的,该装置还包括:发送模块404,用于在从目标卫星的资源值集合中,选取为目标卫星在地面上的覆盖区域内的终端配置的资源值之后,向目标卫星的各个卫星小区在地面上的覆盖区域内的终端,分别发送对应的资源值。
可选的,发送模块404向目标卫星的任一卫星小区在地面上覆盖的区域内的终端,通过广播或RRC消息的方式发送对应的资源值。
本申请实施例还提供一种存储介质,包括存储的程序,其中,程序执行上述任意一种的资源配置方法。
本申请实施例还提供了一种信关站,包括至少一个处理器、以及与所述处理器连接的至少一个存储器、总线;其中,所述处理器、所述存储器通过所述总线完成相互间的通信;所述处理器用于调用所述存储器中的程序指令,以执行上述任一种资源配置方法。
本申请实施例还提供一种卫星通信系统,包括:信关站、卫星和终端,其中,信关站中配置有图4对应的资源配置装置。
本申请实施例方法所述的功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算设备可读取存储介质中。基于这样的理解,本申请实施例对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该软件产品存储在一个存储介质中,包括若干指令用以使得一台计算设备(可以是个人计算机,服务器,移动计算设备或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其它实施例的不同之处,各个实施例之间相同或相似部分互相参见即可。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本申请的精神或范围的情况下,在其它实施例中实现。因此,本申请将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (15)

  1. 一种资源配置方法,其特征在于,包括:
    依据目标卫星的位置确定所述目标卫星与所述信关站间的距离;所述目标卫星为与所述信关站建立通信链路的任一卫星;
    依据距离范围与资源值集合间的预设对应关系,将所述距离所属的距离范围对应的资源值集合,作为所述目标卫星的资源值集合;在所述目标卫星与所述信关站间的距离属于所述距离范围的情况下,所述距离范围对应的资源值集合中的最小资源值,确保所述目标卫星的覆盖区域内的终端所需的解调性能;所述距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小;
    从所述目标卫星的资源值集合中,选取为所述目标卫星在地面上的覆盖区域内的终端配置的资源值。
  2. 根据权利要求1所述的方法,其特征在于,所述距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小,包括:
    所述距离范围内,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小。
  3. 根据权利要求1所述的方法,其特征在于,任一所述距离范围对应的资源值集合包括:构成该距离范围的预设距离值分别对应的预设资源值;所述任一预设距离值对应的预设资源值指:确保在所述目标卫星与所述信关站间的距离属于目标距离范围的情况下,所述目标卫星的覆盖区域内的终端所需的解调性能的最小资源值;对于构成该距离范围的最小预设距离值,所述目标距离范围为该距离范围;对于构成该距离范围的最大预设距离值,所述目标距离范围为所述距离范围中,以该最大预设距离值为最小距离值的任一距离范围。
  4. 根据权利要求1所述的方法,其特征在于,所述从所述目标卫星的资源值集合中,选取为所述目标卫星在地面上的覆盖区域内的终端配置的资源值,包括:
    在所述目标卫星存在多个卫星小区的情况下,按照任一所述卫星小区在地面上形成的覆盖区域与所述目标卫星间的距离越大,为该卫星小区在地面上的覆盖区域内的终端配置的资源值越大的原则,从所述目标卫星的资源值集合中,为每个所述卫星小区的覆盖区域中的终端配置的资源值。
  5. 根据权利要求1~4任意一项所述的方法,其特征在于,所述预设距离范围间互不重叠。
  6. 根据权利要求5所述的方法,其特征在于,所述依据目标卫星的位置确定所述目标卫星与所述信关站间的距离,包括:
    每隔预设时长,依据所述目标卫星的位置,确定所述目标卫星与所述信关站间的距离。
  7. 根据权利要求6所述的方法,其特征在于,在所述从所述目标卫星的资源值集 合中,选取为所述目标卫星在地面上的覆盖区域内的终端配置的资源值之后,还包括:
    向所述目标卫星的各个卫星小区在地面上的覆盖区域内的终端,分别发送对应的资源值。
  8. 根据权利要求7所述的方法,其特征在于,向所述目标卫星的任一卫星小区在地面上覆盖的区域内的终端,通过广播或RRC消息的方式发送对应的资源值。
  9. 一种资源分配装置,其特征在于,包括:
    第一确定模块,用于依据目标卫星的位置确定所述目标卫星与所述信关站间的距离;所述目标卫星为与所述信关站建立通信链路的任一卫星;
    第二确定模块,用于依据距离范围与资源值集合间的预设对应关系,将所述距离所属的距离范围对应的资源值集合,作为所述目标卫星的资源值集合;在所述目标卫星与所述信关站间的距离属于所述距离范围的情况下,所述距离范围对应的资源值集合中的最小资源值,确保所述目标卫星的覆盖区域内的终端所需的解调性能;所述距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小;
    选取模块,用于从所述目标卫星的资源值集合中,选取为所述目标卫星在地面上的覆盖区域内的终端配置的资源值。
  10. 根据权利要求9所述的装置,其特征在于,所述第二确定模块中所述距离范围内至少部分距离范围中,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小,包括:
    所述距离范围内,距离范围中的最小距离值越小,距离范围对应的资源值集合中的最小资源值越小。
  11. 根据权利要求9所述的装置,其特征在于,所述第二确定模块中任一所述距离范围对应的资源值集合包括:构成该距离范围的预设距离值分别对应的预设资源值;所述任一预设距离值对应的预设资源值指:确保在所述目标卫星与所述信关站间的距离属于目标距离范围的情况下,所述目标卫星的覆盖区域内的终端所需的解调性能的最小资源值;对于构成该距离范围的最小预设距离值,所述目标距离范围为该距离范围;对于构成该距离范围的最大预设距离值,所述目标距离范围为所述距离范围中,以该最大预设距离值为最小距离值的任一距离范围。
  12. 根据权利要求9所述的装置,其特征在于,所述选取模块,用于从所述目标卫星的资源值集合中,选取为所述目标卫星在地面上的覆盖区域内的终端配置的资源值,包括:
    所述选取模块,具体用于在所述目标卫星存在多个卫星小区的情况下,按照任一 所述卫星小区在地面上形成的覆盖区域与所述目标卫星间的距离越大,为该卫星小区在地面上的覆盖区域内的终端配置的资源值越大的原则,从所述目标卫星的资源值集合中,为每个所述卫星小区的覆盖区域中的终端配置的资源值。
  13. 一种可读存储介质,其特征在于,包括:所述存储介质包括存储的程序,其中,所述程序执行权利要求1~8任意一项权利要求所述的资源配置方法。
  14. 一种信关站,其特征在于,所述信关站包括至少一个处理器、以及与所述处理器连接的至少一个存储器、总线;其中,所述处理器、所述存储器通过所述总线完成相互间的通信;所述处理器用于调用所述存储器中的程序指令,以执行如权利要求1~8中任一项所述的资源配置方法。
  15. 一种卫星通信系统,其特征在于,包括:卫星、信关站和终端;
    所述终端与所述信关站间通过所述卫星中继进行通信;
    所述信关站应用权利要求1~8任意一项所述的资源配置方法。
PCT/CN2020/138949 2020-12-24 2020-12-24 一种资源配置方法、装置、存储介质及卫星通信系统 WO2022133886A1 (zh)

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CN111480305A (zh) * 2017-12-15 2020-07-31 谷歌有限责任公司 基于卫星的窄带通信
CN111510938A (zh) * 2020-04-27 2020-08-07 西安交通大学 一种基于资源分配的认知卫星通信系统的干扰抑制方法
CN111835395A (zh) * 2019-04-18 2020-10-27 电信科学技术研究院有限公司 卫星通信系统参数的确定方法、装置、终端及服务设备
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CN112468204A (zh) * 2019-09-06 2021-03-09 海能达通信股份有限公司 一种资源配置方法、装置、存储介质及卫星通信系统

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CN111480305A (zh) * 2017-12-15 2020-07-31 谷歌有限责任公司 基于卫星的窄带通信
CN111835395A (zh) * 2019-04-18 2020-10-27 电信科学技术研究院有限公司 卫星通信系统参数的确定方法、装置、终端及服务设备
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