WO2019127372A1 - 一种波束选取方法、终端设备及计算机存储介质 - Google Patents

一种波束选取方法、终端设备及计算机存储介质 Download PDF

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Publication number
WO2019127372A1
WO2019127372A1 PCT/CN2017/119868 CN2017119868W WO2019127372A1 WO 2019127372 A1 WO2019127372 A1 WO 2019127372A1 CN 2017119868 W CN2017119868 W CN 2017119868W WO 2019127372 A1 WO2019127372 A1 WO 2019127372A1
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Prior art keywords
terminal device
transmit
transmit beam
transmit beams
geographic location
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PCT/CN2017/119868
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English (en)
French (fr)
Inventor
唐海
林晖闵
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP17936533.3A priority Critical patent/EP3734934A4/en
Priority to AU2017445111A priority patent/AU2017445111A1/en
Priority to CN201780098079.8A priority patent/CN111527735A/zh
Priority to JP2020536651A priority patent/JP2021513769A/ja
Priority to KR1020207021902A priority patent/KR20200105683A/ko
Priority to PCT/CN2017/119868 priority patent/WO2019127372A1/zh
Publication of WO2019127372A1 publication Critical patent/WO2019127372A1/zh
Priority to US16/913,335 priority patent/US11457446B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/06954—Sidelink beam training with support from third instance, e.g. the third instance being a base station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Definitions

  • the present invention relates to the field of information processing technologies, and in particular, to a beam selection method, a terminal device, and a computer storage medium.
  • the vehicle networking system is a kind of side-link transmission technology (SL: Sidelink, side-link) based on LTE-D2D. Different from the traditional LTE system, the communication data is received or transmitted through the base station, and the vehicle networking system adopts the terminal. The way to communicate directly to the terminal, thus having higher spectral efficiency and lower transmission delay.
  • the car networking technology (V2X) was standardized in 3GPP Rel-14, defining two transmission modes: Mode 3 and Mode 4.
  • the position is also dynamically changed.
  • the optimal beam selected and fed back by the receiving end may have failed in the next transmission process; the resources required for the terminal to transmit data are through competition.
  • the receiving end needs to contend for the optimal beam feedback, which causes the feedback delay to be uncertain, which leads to the failure of the optimal beam index of the feedback.
  • an embodiment of the present invention provides a beam selection method, a terminal device, and a computer storage medium.
  • An embodiment of the present invention provides a beam selection method, which is applied to a first terminal device, and includes:
  • the embodiment of the invention provides a terminal device, including:
  • the processing unit selects, according to its own geographic location and the geographic location of the second terminal device, a first transmit beam that transmits data with the second terminal device;
  • the communication unit transmits data to the second terminal device based on the first transmit beam.
  • a terminal device provided by an embodiment of the present invention includes: a processor and a memory for storing a computer program capable of running on a processor,
  • processor is configured to perform the steps of the foregoing method when the computer program is run.
  • a computer storage medium is provided by the embodiment of the present invention.
  • the computer storage medium stores computer executable instructions, and the foregoing method steps are implemented when the computer executable instructions are executed.
  • the transmit beam between the first terminal device and the second terminal device can be selected in combination with the geographic location of the terminal device to send data to the second terminal device on the selected transmit beam.
  • the optimal transmit beam is directly determined by using the geographic location of the originating end and the receiving end, so that the problem that the selected beam in the previous state due to the terminal movement does not conform to the state of the moved terminal can be avoided, and the location of the transmitting end can be determined according to the position of the transmitting end. Update the real-time update beam information.
  • FIG. 1 is a schematic flowchart of a beam selection method according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a processing scenario according to an embodiment of the present invention.
  • Figure 3 is a schematic diagram 2 of a processing scenario according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a hardware architecture according to an embodiment of the present invention.
  • An embodiment of the present invention provides a beam selection method, which is applied to a first terminal device, as shown in FIG. 1 , and includes:
  • Step 101 Select a first transmit beam that transmits data between the first terminal device and the second terminal device, based on the geographic location of the first terminal device and the geographic location of the second terminal device.
  • Step 102 Send data to the second terminal device based on the first transmit beam.
  • step 101 determining a relative positional relationship between the first terminal device and the second terminal device based on a geographic location of the first terminal device and a geographic location of the second terminal device And selecting, according to the relative positional relationship, a first transmit beam from the N transmit beams between the first terminal device and the second terminal device; wherein N is an integer greater than or equal to 1.
  • the relative positional relationship between the first terminal device and the second terminal device is: a reference connection line between the first terminal device and the second terminal device.
  • two terminal devices are respectively a first terminal device and a second terminal device, and the two terminal devices have a relative positional relationship, which can be characterized by a reference connection line 20 between the two devices.
  • the method for selecting the first transmit beam from the N transmit beams between the first terminal device and the second terminal device based on the relative positional relationship may include:
  • the transmit beam 1 can be selected as the transmit beam 1 The aforementioned first transmit beam.
  • the preset angle threshold is preset or configured by a network.
  • the optimal quality may be at least one of the following conditions: minimum load, maximum power, minimum interference, maximum signal to noise ratio, etc.; it should be understood that other conditions may exist, but are no longer in this embodiment. Exhaustive.
  • the selected transmit beam with the preset duration as the interval and polled in turn is used as the first transmit beam.
  • M transmit beams are used as the selected beams, but only one of the M transmit beams exists as the first transmit beam at the same time.
  • the two transmit beams are selected, and the angle between the reference transmit lines and the reference connection line is less than a preset angle threshold; then, the two transmit beams are polled for a period of time respectively. Transmit beam.
  • the length of each of the selected transmit beams as the first transmit beam may be the same or different, and may be preset in advance; for example, an advanced preset parameter may be when a certain transmit beam is used as the first transmit beam.
  • the time length of the corresponding transmit time is preset in advance, or the duration of each of the first transmit beams is a fixed duration.
  • which transmit beam is selected first, and which transmit beam is selected may be randomly selected, may be sorted according to the identifier of the beam, or may be sorted according to the quality of the beam from excellent to poor. Select. This embodiment does not exhaustively select the manner of selection.
  • the method further includes: before the first transmit beam of the data is transmitted between the first terminal device and the second terminal device, based on the geographic location of the first terminal device and the geographic location of the second terminal device, the method further includes:
  • the optimal beam is the beam from the transmitting end to the receiving end, so the optimal transmitting beam can be quickly determined by using the geographical location information of the transmitting end and the receiving end.
  • all vehicles periodically broadcast their own location information, such as Cooperative Awareness Message (CAM), which is transmitted by omnidirectional broadcasting, so the surrounding vehicles can pass the detection.
  • CAM Cooperative Awareness Message
  • the CAM message learns the location information of other vehicles to determine the optimal transmit beam with a certain receiver.
  • V2X vehicle to everthing
  • D2D Device to Device
  • the transmit beam between the first terminal device and the second terminal device can be selected in combination with the geographic location of the terminal device to send data to the second terminal device on the selected transmit beam.
  • the optimal transmit beam is directly determined by using the geographic location of the originating end and the receiving end, so that the problem that the selected beam in the previous state due to the terminal movement does not conform to the state of the moved terminal can be avoided, and the location of the transmitting end can be determined according to the position of the transmitting end. Update the real-time update beam information.
  • An embodiment of the present invention provides a terminal device, as shown in FIG. 4, including:
  • the processing unit 41 selects, according to its own geographic location and the geographic location of the second terminal device, a first transmit beam that transmits data with the second terminal device;
  • the communication unit 42 transmits data to the second terminal device based on the first transmit beam.
  • the processing unit 41 determines a relative positional relationship between the first terminal device and the second terminal device based on a geographic location of the first terminal device and a geographic location of the second terminal device. And selecting, according to the relative positional relationship, a first transmit beam from the N transmit beams between the first terminal device and the second terminal device; where N is an integer greater than or equal to 1.
  • the relative positional relationship between the first terminal device and the second terminal device is: a reference connection line between the first terminal device and the second terminal device.
  • two terminal devices are respectively a first terminal device and a second terminal device, and the two terminal devices have a relative positional relationship, which can be characterized by a reference connection line 20 between the two devices.
  • the method for selecting the first transmit beam from the N transmit beams between the first terminal device and the second terminal device based on the relative positional relationship may include:
  • the processing unit 41 selects, from the N transmit beams, one transmit beam with the smallest angle between the reference connection lines as the first transmit beam, based on the reference connection line.
  • the transmit beam 1 can be selected as the transmit beam 1 The aforementioned first transmit beam.
  • the processing unit 41 based on the reference connection line, select, from the N transmit beams, M transmit beams with an angle between the reference connection lines that are less than a preset angle threshold; and transmit from the M transmit beams In the beam, the best-quality transmit beam is selected as the first transmit beam;
  • the preset angle threshold is preset or configured by a network.
  • the optimal quality may be at least one of the following conditions: minimum load, maximum power, minimum interference, maximum signal to noise ratio, etc.; it should be understood that other conditions may exist, but are no longer in this embodiment. Exhaustive.
  • the processing unit 41 based on the reference connection line, select, from the N transmit beams, M transmit beams with an angle between the reference connection lines that are less than a preset angle threshold; and transmit from the M transmit beams In the beam, the selected transmit beam sequentially polled at a preset duration is used as the first transmit beam.
  • M transmit beams are used as the selected beams, but only one of the M transmit beams exists as the first transmit beam at the same time.
  • the two transmit beams are selected, and the angle between the reference transmit lines and the reference connection line is less than a preset angle threshold; then, the two transmit beams are polled for a period of time respectively. Transmit beam.
  • the length of each of the selected transmit beams as the first transmit beam may be the same or different, and may be preset in advance; for example, an advanced preset parameter may be when a certain transmit beam is used as the first transmit beam.
  • the time length of the corresponding transmit time is preset in advance, or the duration of each of the first transmit beams is a fixed duration.
  • which transmit beam is selected first, and which transmit beam is selected may be randomly selected, may be sorted according to the identifier of the beam, or may be sorted according to the quality of the beam from excellent to poor. Select. This embodiment does not exhaustively select the manner of selection.
  • the processing unit 41 passes the data before the first transmit beam of the data is transmitted between the first terminal device and the second terminal device, based on the geographic location of the first terminal device and the geographic location of the second terminal device.
  • the broadcast information sent by the second terminal device acquires the geographic location of the second terminal device.
  • the optimal beam is the beam from the transmitting end to the receiving end, so the optimal transmitting beam can be quickly determined by using the geographical location information of the transmitting end and the receiving end.
  • all vehicles periodically broadcast their own location information, such as CAM information, which is transmitted by means of omnidirectional broadcasting, so that surrounding vehicles can know the location information of other vehicles by detecting CAM messages.
  • CAM information which is transmitted by means of omnidirectional broadcasting
  • the transmit beam between the first terminal device and the second terminal device can be selected in combination with the geographic location of the terminal device to send data to the second terminal device on the selected transmit beam.
  • the optimal transmit beam is directly determined by using the geographic location of the originating end and the receiving end, so that the problem that the selected beam in the previous state due to the terminal movement does not conform to the state of the moved terminal can be avoided, and the location of the transmitting end can be determined according to the position of the transmitting end. Update the real-time update beam information.
  • the embodiment of the present invention further provides a hardware component architecture of the terminal device.
  • the method includes at least one processor 51, a memory 52, and at least one network interface 53.
  • the various components are coupled together by a bus system 54.
  • bus system 54 is used to implement connection communication between these components.
  • the bus system 54 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus.
  • various buses are labeled as bus system 54 in FIG.
  • the memory 52 in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • memory 52 stores elements, executable modules or data structures, or a subset thereof, or their extension set:
  • the processor 51 is configured to be able to process the method steps of the foregoing first embodiment, and details are not described herein.
  • the embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and when the computer executable instructions are executed, the method steps of the foregoing first embodiment are implemented.
  • Embodiments of the Invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • an embodiment of the present invention further provides a computer storage medium, wherein a computer program is configured, and the computer program is configured to execute a data scheduling method according to an embodiment of the present invention.

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Abstract

本发明公开了一种波束选取方法、终端设备及计算机存储介质，其中方法包括：基于所述第一终端设备的地理位置、以及第二终端设备的地理位置，选取第一终端设备与第二终端设备之间传输数据的第一发射波束；基于所述第一发射波束，向所述第二终端设备发送数据。

Description

一种波束选取方法、终端设备及计算机存储介质 技术领域
本发明涉及信息处理技术领域，尤其涉及一种波束选取方法、终端设备及计算机存储介质。
背景技术
车联网***是基于LTE-D2D的一种侧行链路传输技术(SL：Sidelink,侧行链路)，与传统的LTE***中通信数据通过基站接收或者发送的方式不同，车联网***采用终端到终端直接通信的方式，因此具有更高的频谱效率以及更低的传输时延。在3GPP Rel-14中对车联网技术(V2X)进行了标准化，定义了两种传输模式：模式3和模式4。
在V2X***中，由于终端都是高速移动的，位置也是动态变化的，接收端选取并且反馈的最优波束在下次传输的过程中可能已经失效了；终端进行数据发送所需的资源是通过竞争的方式获得的，接收端进行最优波束的反馈时需要竞争资源，会导致反馈时延不确定，从而导致反馈的最优波束索引失效。
发明内容
为解决上述技术问题，本发明实施例提供了一种波束选取方法、终端设备及计算机存储介质。
本发明实施例提供一种波束选取方法，应用于第一终端设备，包括：
基于所述第一终端设备的地理位置、以及第二终端设备的地理位置，选取第一终端设备与第二终端设备之间传输数据的第一发射波束；
基于所述第一发射波束，向所述第二终端设备发送数据。
本发明实施例提供一种终端设备，包括：
处理单元，基于自身的地理位置、以及第二终端设备的地理位置，选取与第二终端设备之间传输数据的第一发射波束；
通信单元，基于所述第一发射波束，向所述第二终端设备发送数据。
本发明实施例提供的一种终端设备，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，
其中，所述处理器用于运行所述计算机程序时，执行前述方法的步骤。
本发明实施例提供的一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被执行时实现前述方法步骤。
本发明实施例的技术方案，就能够结合终端设备的地理位置，选取第一终端设备与第二终端设备之间的发射波束，以在选取的发射波束上向第二终端设备发送数据。如此，利用发端和接收端的地理位置直接确定最优发射波束，从而能够避免由于终端移动而带来的之前状态下选取的波束并不符合移动后的终端的状态的问题，同时可以根据收发端位置的更新实时的更新波束信息。
附图说明
图1为本发明实施例提供的一种波束选取方法流程示意图；
图2为本发明实施例处理场景示意1
图3为本发明实施例处理场景示意2；
图4为本发明实施例终端设备组成结构示意图；
图5为本发明实施例的一种硬件架构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用， 并非用来限定本发明实施例。
实施例一、
本发明实施例提供了一种波束选取方法，应用于第一终端设备，如图1所示，包括：
步骤101：基于所述第一终端设备的地理位置、以及第二终端设备的地理位置，选取第一终端设备与第二终端设备之间传输数据的第一发射波束；
步骤102：基于所述第一发射波束，向所述第二终端设备发送数据。
具体来说，前述步骤101中，基于所述第一终端设备的地理位置与所述第二终端设备的地理位置，确定所述第一终端设备与所述第二终端设备之间的相对位置关系；基于所述相对位置关系，从所述第一终端设备与第二终端设备之间的N个发射波束中，选取第一发射波束；其中，N为大于等于1的整数。
具体的，所述第一终端设备与所述第二终端设备之间的相对位置关系，为：所述第一终端设备与第二终端设备之间的参考连接线。
比如，参见图2，两个终端设备，分别为第一终端设备以及第二终端设备，两个终端设备存在相对位置关系，可以采用两个设备之间的参考连接线20来表征。
所述基于所述相对位置关系，从所述第一终端设备与第二终端设备之间的N个发射波束中，选取第一发射波束的方式，可以包括：
方式一、
基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角最小的一个发射波束作为第一发射波束。
比如，参见图3，在第一终端设备与第二终端设备之间存在3个发射波束，其中，发射波束1跟参考连接线20之间的夹角是最小的，那么可以选取发射波束1作为前述第一发射波束。
方式二、
基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角小于预设夹角阈值的M个发射波束；从所述M个发射波束中，选取质量最优的发射波束作为第一发射波束；
其中，所述预设夹角阈值是预先设定的，或者网络配置的。
所述质量最优的可以为符合以下条件至少之一：负荷最小、功率最大、干扰最小、信噪比最大等等；需要理解的是，还可以存在其他的条件，只是本实施例中不再进行穷举。
方式三、
基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角小于预设夹角阈值的M个发射波束；从所述M个发射波束中，以预设时长为间隔、依次轮询的选取发射波束作为第一发射波束。
这种方式下，M个发射波束均作为被选取的波束，只是在同一时间内，仅存在M个发射波束中的一个作为第一发射波束。
比如，从5个发射波束中，选取出来2个发射波束，与参考连接线之间的夹角均小于预设夹角阈值；然后，这2个发射波束进行轮询分别做一段时长的第一发射波束。
进一步地，被选取的每一个发射波束作为第一发射波束的时长可以相同也可以不同，可以为提前进行预设；比如，提前预设的参数，可以为当某一个发射波束作为第一发射波束时，提前预设其对应的时长；或者，还可以为预设轮询的方式中，每一个作为第一发射波束的时长均为固定时长。
再次，从M个发射波束中，先选哪个发射波束、后选哪个发射波束，可以为随机选取，还可以为根据波束的标识进行排序，还可以为根据波束的质量从优至差进行排序后进行选取。本实施例不对选取的方式进行穷举。
所述基于所述第一终端设备的地理位置、以及第二终端设备的地理位 置，选取第一终端设备与第二终端设备之间传输数据的第一发射波束之前，所述方法还包括：
通过第二终端设备发送的广播信息，获取所述第二终端设备的地理位置。
也就是说，发送端到接收端进行数据传输，其最优的波束是从发送端指向接收端的波束，因此可以利用发送端和接收端的地理位置信息快速的确定最优发射波束。在车联网***中，所有车辆都会周期性的广播自己的位置信息，如协同感知信息(CAM，Cooperative Awareness Message)，该信息是通过全向广播的方式进行传输的，因此周围的车辆可以通过检测CAM消息获知其他车辆的位置信息，从而确定与某个接收端的最优发送波束。
需要说明的是，本发明给出的实施例不仅适用于车车通信，也适用于车辆到其他设备(V2X：vehicle to everthing)的通信，以及其他终端到终端(D2D：Device to Device)的通信***中。
可见，通过采用上述方案，能够结合终端设备的地理位置，选取第一终端设备与第二终端设备之间的发射波束，以在选取的发射波束上向第二终端设备发送数据。如此，利用发端和接收端的地理位置直接确定最优发射波束，从而能够避免由于终端移动而带来的之前状态下选取的波束并不符合移动后的终端的状态的问题，同时可以根据收发端位置的更新实时的更新波束信息。
实施例二、
本发明实施例提供了一种终端设备，如图4所示，包括：
处理单元41，基于自身的地理位置、以及第二终端设备的地理位置，选取与第二终端设备之间传输数据的第一发射波束；
通信单元42，基于所述第一发射波束，向所述第二终端设备发送数据。
具体来说，处理单元41，基于所述第一终端设备的地理位置与所述第二终端设备的地理位置，确定所述第一终端设备与所述第二终端设备之间的相对位置关系；基于所述相对位置关系，从所述第一终端设备与第二终端设备之间的N个发射波束中，选取第一发射波束；其中，N为大于等于1的整数。
具体的，所述第一终端设备与所述第二终端设备之间的相对位置关系，为：所述第一终端设备与第二终端设备之间的参考连接线。
比如，参见图2，两个终端设备，分别为第一终端设备以及第二终端设备，两个终端设备存在相对位置关系，可以采用两个设备之间的参考连接线20来表征。
所述基于所述相对位置关系，从所述第一终端设备与第二终端设备之间的N个发射波束中，选取第一发射波束的方式，可以包括：
方式一、
处理单元41，基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角最小的一个发射波束作为第一发射波束。
比如，参见图3，在第一终端设备与第二终端设备之间存在3个发射波束，其中，发射波束1跟参考连接线20之间的夹角是最小的，那么可以选取发射波束1作为前述第一发射波束。
方式二、
处理单元41，基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角小于预设夹角阈值的M个发射波束；从所述M个发射波束中，选取质量最优的发射波束作为第一发射波束；
其中，所述预设夹角阈值是预先设定的，或者网络配置的。
所述质量最优的可以为符合以下条件至少之一：负荷最小、功率最大、干扰最小、信噪比最大等等；需要理解的是，还可以存在其他的条件，只 是本实施例中不再进行穷举。
方式三、
处理单元41，基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角小于预设夹角阈值的M个发射波束；从所述M个发射波束中，以预设时长为间隔、依次轮询的选取发射波束作为第一发射波束。
这种方式下，M个发射波束均作为被选取的波束，只是在同一时间内，仅存在M个发射波束中的一个作为第一发射波束。
比如，从5个发射波束中，选取出来2个发射波束，与参考连接线之间的夹角均小于预设夹角阈值；然后，这2个发射波束进行轮询分别做一段时长的第一发射波束。
进一步地，被选取的每一个发射波束作为第一发射波束的时长可以相同也可以不同，可以为提前进行预设；比如，提前预设的参数，可以为当某一个发射波束作为第一发射波束时，提前预设其对应的时长；或者，还可以为预设轮询的方式中，每一个作为第一发射波束的时长均为固定时长。
再次，从M个发射波束中，先选哪个发射波束、后选哪个发射波束，可以为随机选取，还可以为根据波束的标识进行排序，还可以为根据波束的质量从优至差进行排序后进行选取。本实施例不对选取的方式进行穷举。
所述基于所述第一终端设备的地理位置、以及第二终端设备的地理位置，选取第一终端设备与第二终端设备之间传输数据的第一发射波束之前，所述处理单元41，通过第二终端设备发送的广播信息，获取所述第二终端设备的地理位置。
也就是说，发送端到接收端进行数据传输，其最优的波束是从发送端指向接收端的波束，因此可以利用发送端和接收端的地理位置信息快速的确定最优发射波束。在车联网***中，所有车辆都会周期性的广播自己的 位置信息，如CAM信息，该信息是通过全向广播的方式进行传输的，因此周围的车辆可以通过检测CAM消息获知其他车辆的位置信息，从而确定与某个接收端的最优发送波束。
可见，通过采用上述方案，能够结合终端设备的地理位置，选取第一终端设备与第二终端设备之间的发射波束，以在选取的发射波束上向第二终端设备发送数据。如此，利用发端和接收端的地理位置直接确定最优发射波束，从而能够避免由于终端移动而带来的之前状态下选取的波束并不符合移动后的终端的状态的问题，同时可以根据收发端位置的更新实时的更新波束信息。
本发明实施例还提供了一种终端设备的硬件组成架构，如图5所示，包括：至少一个处理器51、存储器52、至少一个网络接口53。各个组件通过总线***54耦合在一起。可理解，总线***54用于实现这些组件之间的连接通信。总线***54除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图5中将各种总线都标为总线***54。
可以理解，本发明实施例中的存储器52可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。
在一些实施方式中，存储器52存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：
操作***521和应用程序522。
其中，所述处理器51配置为：能够处理前述实施例一的方法步骤，这里不再进行赘述。
本发明实施例提供的一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被执行时实施前述实施例一的方法步骤。
本发明实施例上述装置如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机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机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。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)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，其中存储有计算机程序，该计算机程序配置为执行本发明实施例的数据调度方法。
尽管为示例目的，已经公开了本发明的优选实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。

Claims (16)

  1. 一种波束选取方法，应用于第一终端设备，包括：
    基于所述第一终端设备的地理位置、以及第二终端设备的地理位置，选取第一终端设备与第二终端设备之间传输数据的第一发射波束；
    基于所述第一发射波束，向所述第二终端设备发送数据。
  2. 根据权利要求1所述的方法，其中，所述基于所述第一终端设备的地理位置、以及第二终端设备的地理位置，选取第一终端设备与第二终端设备之间传输数据的第一发射波束，包括：
    基于所述第一终端设备的地理位置与所述第二终端设备的地理位置，确定所述第一终端设备与所述第二终端设备之间的相对位置关系；
    基于所述相对位置关系，从所述第一终端设备与第二终端设备之间的N个发射波束中，选取第一发射波束；
    其中，N为大于等于1的整数。
  3. 根据权利要求2所述的方法，其中，所述第一终端设备与所述第二终端设备之间的相对位置关系，为：所述第一终端设备与第二终端设备之间的参考连接线。
  4. 根据权利要求3所述的方法，其中，所述基于所述相对位置关系，从所述第一终端设备与第二终端设备之间的N个发射波束中，选取第一发射波束，包括：
    基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角最小的一个发射波束作为第一发射波束。
  5. 根据权利要求3所述的方法，其中，所述基于所述相对位置关系，从所述第一终端设备与第二终端设备之间的N个发射波束中，选取第一发射波束，包括：
    基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接 线之间的夹角小于预设夹角阈值的M个发射波束；从所述M个发射波束中，选取质量最优的发射波束作为第一发射波束；M为小于等于N的整数；
    或者，
    基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角小于预设夹角阈值的M个发射波束；从所述M个发射波束中，以预设时长为间隔、依次轮询的选取发射波束作为第一发射波束。
  6. 根据权利要求5所述的方法，其中，所述预设夹角阈值是预先设定的，或者网络配置的。
  7. 根据权利要求1所述的方法，其中，所述基于所述第一终端设备的地理位置、以及第二终端设备的地理位置，选取第一终端设备与第二终端设备之间传输数据的第一发射波束之前，所述方法还包括：
    通过第二终端设备发送的广播信息，获取所述第二终端设备的地理位置。
  8. 一种终端设备，包括：
    处理单元，基于自身的地理位置、以及第二终端设备的地理位置，选取与第二终端设备之间传输数据的第一发射波束；
    通信单元，基于所述第一发射波束，向所述第二终端设备发送数据。
  9. 根据权利要求8所述的终端设备，其中，所述处理单元，基于所述第一终端设备的地理位置与所述第二终端设备的地理位置，确定所述第一终端设备与所述第二终端设备之间的相对位置关系；基于所述相对位置关系，从所述第一终端设备与第二终端设备之间的N个发射波束中，选取第一发射波束；
    其中，N为大于等于1的整数。
  10. 根据权利要求9所述的终端设备，其中，所述第一终端设备与所述第二终端设备之间的相对位置关系，为：所述第一终端设备与第二终端 设备之间的参考连接线。
  11. 根据权利要求10所述的终端设备，其中，所述处理单元，基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角最小的一个发射波束作为第一发射波束。
  12. 根据权利要求10所述的方终端设备，其中，所述处理单元，基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角小于预设夹角阈值的M个发射波束；从所述M个发射波束中，选取质量最优的发射波束作为第一发射波束；M为小于等于N的整数；
    或者，
    基于所述参考连接线，从所述N个发射波束中，选取与所述参考连接线之间的夹角小于预设夹角阈值的M个发射波束；从所述M个发射波束中，以预设时长为间隔、依次轮询的选取发射波束作为第一发射波束。
  13. 根据权利要求12所述的终端设备，其中，所述预设夹角阈值是预先设定的，或者网络配置的。
  14. 根据权利要求8所述的终端设备，其中，所述处理单元，通过第二终端设备发送的广播信息，获取所述第二终端设备的地理位置。
  15. 一种终端设备，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，
    其中，所述处理器用于运行所述计算机程序时，执行权利要求1-7任一项所述方法的步骤。
  16. 一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被执行时实现权利要求1-7任一项所述方法的步骤。
PCT/CN2017/119868 2017-12-29 2017-12-29 一种波束选取方法、终端设备及计算机存储介质 WO2019127372A1 (zh)

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