WO2021027804A1 - Procédé et appareil de communication et support de données lisible par ordinateur - Google Patents

Procédé et appareil de communication et support de données lisible par ordinateur Download PDF

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Publication number
WO2021027804A1
WO2021027804A1 PCT/CN2020/108377 CN2020108377W WO2021027804A1 WO 2021027804 A1 WO2021027804 A1 WO 2021027804A1 CN 2020108377 W CN2020108377 W CN 2020108377W WO 2021027804 A1 WO2021027804 A1 WO 2021027804A1
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WIPO (PCT)
Prior art keywords
resources
reserved
resource
control information
data packet
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PCT/CN2020/108377
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English (en)
Chinese (zh)
Inventor
黎超
张兴炜
温容慧
张莉莉
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华为技术有限公司
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Publication of WO2021027804A1 publication Critical patent/WO2021027804A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • 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]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • 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]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the first device may first determine the transmission resource from the candidate resources, and then use the transmission resource to send the first data packet, which can ensure that the resource used to transmit the data packet is an available resource, thereby improving the efficiency of information transmission. reliability.
  • the first device may determine that the resources in the first resource set whose signal quality is less than the sum of the fourth threshold and the first step length belong to Candidate resources, it can be determined that the resources in the second resource set whose signal quality is less than the sum of the fifth threshold and the second step size are candidate resources.
  • the first resource set is the set of the first reserved resources among the reserved resources corresponding to the indication information except for the current candidate resources
  • the second resource set is the set of reserved resources corresponding to the indication information except those belonging to the current Resources other than the candidate resources are the set of second reserved resources.
  • the reserved resource corresponding to the indication information is the first reserved resource, determining that the reserved resource whose signal quality is less than a fourth threshold among the reserved resources corresponding to the indication information belongs to the candidate resource;
  • the access network equipment can be a device used to communicate with terminal equipment, and can be a base transceiver in the global system for mobile communication (GSM) or code division multiple access (CDMA) station, BTS), it can also be a base station (nodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station in a long term evolution (LTE) system (evolutional node B, eNB or eNodeB), it can also be a terminal that functions as an access network device in device-to-device (D2D) communication, and can also be a relay station, access point, vehicle-mounted device, roadside unit, Transmitting points, wearable devices, network-side devices in the future 5G network or access network devices in the future evolved PLMN, or any device that undertakes network functions, etc.
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • BTS code division multiple access
  • NB wideband code division multiple access
  • LTE long term evolution
  • the UE can decode the SCI in a sensing window (for example, within a predefined or configured period of time before the current data packet to be transmitted, such as 100ms, 500ms, 1s, etc.)
  • the resource selection can be performed avoiding the resources occupied by other UEs as shown in the figure, avoiding resource conflicts between different UEs.
  • the sensing window is used for a sense of sliding, that is, the UE needs to perform measurement and detection all the time before the data packet arrives.
  • the measurement result when selecting the resource is based on the measurement result in the listening window before the data packet arrives.
  • the first device may determine whether the reserved resource corresponding to the indication information belongs to the candidate resource according to the first control information.
  • the candidate resource is a collection of resources that can be selected and used.
  • the first control information may also include information about the time slot where the reserved resource is located.
  • the first device may detect the second control information and/or the data packet scheduled by the second control information on the time slot where the reserved resource is located, that is, detect the second control information and/or the second control information scheduling on the time slot corresponding to the information
  • the first device does not detect the second control information and/or the data packet scheduled by the second control information in the time slot where the reserved resource is located, it indicates that there is no information transmission on the reserved resource, that is, the reserved resource If the reserved resource is not used, it can be considered that the reserved resource is released, and the first device can determine that the reserved resource corresponding to the indication information is a candidate resource.
  • the first device When the first device detects the second control information and/or the data packet scheduled by the second control information on the time slot where the reserved resource is located, it indicates that there is information transmission on the reserved resource, that is, the reserved resource is used. It is considered that the reserved resource has not been released.
  • the first device when the first device does not detect the second control information and/or the data packet scheduled by the second control information in the time slot where the reserved resources are located, it may also be that the first device detects the second control information and/or The data packet scheduled by the second control information, but the detected signal quality of the first control information and/or the data packet scheduled by the first control information is lower than the preset threshold.
  • the first device may determine that one or more reserved resources with the largest corresponding distance among the reserved resources corresponding to the indication information belong to candidate resources. Among them, it is determined that one or more reserved resources corresponding to the largest distance among the reserved resources corresponding to the indication information are candidate resources, and one or more reserved resources corresponding to the reserved resources corresponding to the indication information have the smallest signal quality. It is similar to candidate resources. For detailed description, please refer to the corresponding description, which will not be repeated here.
  • the first device may determine that the first resource concentration Resources whose signal quality is less than the sum of the fifth threshold and the first step length are candidate resources, and it can be determined that the resources in the second resource set whose signal quality is less than the sum of the sixth threshold and the second step length are candidate resources.
  • the first resource set is a set of the first reserved resources among the reserved resources corresponding to the indication information except for the current candidate resources
  • the second resource set is the set of reserved resources corresponding to the indication information except for the current candidate resources
  • the other resources are the set of second reserved resources.
  • the reserved resources corresponding to the indication information are the second reserved resources and the reserved resources corresponding to the indication information are the first reserved resources and whose signal quality is less than the eighth threshold are candidate resources. It may also be determined that the reserved resources corresponding to the indication information are the second reserved resources and the reserved resources corresponding to the indication information are the first reserved resources, the signal quality is greater than or equal to the eighth threshold and the distance is greater than the third distance threshold.
  • the reserved resources are candidate resources.
  • the signal quality is the measured signal quality of the first control information and/or the data packet scheduled by the first control information
  • the distance is the distance between the first device and the sending device determined according to the location information.
  • FIG. 9 is a schematic diagram of a reserved resource division disclosed in an embodiment of the present invention.
  • all reserved resources in the resource pool are Sa
  • Sa includes all reserved resources Sb used for HARQ retransmission and a set Sc of all reserved resources used for blind transmission.
  • All reserved resources Sd whose measured signal quality is less than the eighth threshold in Sb and Sc are classified as candidate resources.
  • the reserved resources Se whose signal quality is greater than the eighth threshold and the distance is greater than the third distance threshold among Sb and Sc can be classified as candidate resources. It can be seen that the candidate resource is equal to Sd+Se.
  • the value of the counter may be updated. It can be updated after the first data packet is sent out for the first time. It can also be updated after the first data packet is successfully sent. At this time, the first device may also receive feedback information for the first data packet. When the feedback information is information indicating that the first data packet is successfully transmitted, the first device updates the value of the counter; when the feedback information is for When the information indicating that the transmission of the first data packet fails, the first device keeps the value of the counter unchanged, and does not update until the first data packet is successfully retransmitted or until the multiple retransmissions of the first data packet are all sent. Update the value of the counter. Among them, the initial value of the counter can be randomly selected within a fixed value range.
  • the value of the counter may not change.
  • the value of the counter can be reduced by 1.
  • the value of the counter can be reduced by 1.
  • the reserved resource corresponding to the indication information is a candidate resource, and the second control information and/or second control information
  • the resource occupied by the data packet of the information scheduling is the reserved resource corresponding to the indication information;
  • the resources in the first resource set whose signal quality is less than the sum of the fourth threshold and the first step length are candidate resources, and the first resource set is the first resource among the reserved resources corresponding to the indication information except for the current candidate resources. Collection of reserved resources;
  • the counter may include a first counter and a second counter, and the updating unit 1104 is specifically used for:
  • the processor 1201 determining whether the reserved resource corresponding to the indication information belongs to the candidate resource according to the first control information includes:

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

Abstract

La présente invention concerne un procédé et un appareil de communication, et un support de données lisible par ordinateur. Le procédé comprend les étapes suivantes : un premier dispositif reçoit des premières informations de commande, les premières informations de commande comprenant des informations d'indication d'une ressource réservée ; en fonction des premières informations de commande, déterminer si la ressource réservée correspondant aux informations d'indication est une ressource candidate ; et envoyer un premier paquet de données selon la ressource candidate. Dans les modes de réalisation de la présente invention, la fiabilité de la transmission de données peut être améliorée.
PCT/CN2020/108377 2019-08-13 2020-08-11 Procédé et appareil de communication et support de données lisible par ordinateur WO2021027804A1 (fr)

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CN201910743816.6 2019-08-13
CN201910743816.6A CN112399487B (zh) 2019-08-13 2019-08-13 一种通信方法、装置及计算机可读存储介质

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WO2024088106A1 (fr) * 2022-10-26 2024-05-02 华为技术有限公司 Procédé et appareil de communication en liaison latérale

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CN113632536A (zh) * 2021-06-29 2021-11-09 北京小米移动软件有限公司 基于终端间辅助机制的资源选择方法、装置及存储介质
WO2024065433A1 (fr) * 2022-09-29 2024-04-04 Nec Corporation Procédé, dispositif et support de communication

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