WO2020143810A1 - Uplink control method and signaling for multi-point transmission - Google Patents

Uplink control method and signaling for multi-point transmission Download PDF

Info

Publication number
WO2020143810A1
WO2020143810A1 PCT/CN2020/071581 CN2020071581W WO2020143810A1 WO 2020143810 A1 WO2020143810 A1 WO 2020143810A1 CN 2020071581 W CN2020071581 W CN 2020071581W WO 2020143810 A1 WO2020143810 A1 WO 2020143810A1
Authority
WO
WIPO (PCT)
Prior art keywords
signaling
uplink control
transmission
information
point
Prior art date
Application number
PCT/CN2020/071581
Other languages
French (fr)
Chinese (zh)
Inventor
焦慧颖
Original Assignee
中国信息通信研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国信息通信研究院 filed Critical 中国信息通信研究院
Publication of WO2020143810A1 publication Critical patent/WO2020143810A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a 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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams

Definitions

  • the present application relates to the technical field of mobile communications, and in particular, to an uplink control method and signaling for multipoint transmission.
  • the 5G NR system supports a multi-beam transmission mechanism.
  • the R16 version needs to further enhance multi-panel transmission to further enhance reliability and robustness, and supports joint transmission.
  • the downlink control channel needs to be enhanced so that multiple panels and multiple transmission points can be scheduled at the same time.
  • One way is to schedule multiple points and multiple panels through a unified control channel.
  • the control signaling indicates scheduling information, HARQ information and precoding information of multiple points, etc., and the downlink control channel of the prior art needs to be improved.
  • the present application proposes an uplink control method and signaling for multipoint transmission to solve the problem of how to allocate uplink resources when multiple uplink antennas or multiple panels are used.
  • An embodiment of the present application provides an uplink control method for multipoint transmission for a terminal device, including the following steps:
  • the terminal device receives control information, and the control information includes a transmission point identifier (TRP ID) and information indicating a beam direction of uplink control resources of each transmission point;
  • TRP ID transmission point identifier
  • the terminal device sends uplink control signaling at the transmission point (TRP) and the beam direction.
  • the number of bits of the control information is 2 bits.
  • the method of the present application includes the following steps:
  • the terminal device receives downlink control signaling, and the downlink control signaling further includes information indicating resources occupied by the uplink control signaling.
  • the terminal device sends uplink control signaling at multiple sending points, and any two sending points have different resources for sending the uplink control signaling.
  • the method of the present application further includes the following steps:
  • the uplink control signaling includes RI for indicating the number of layers corresponding to the transmission points; and or, the uplink control signaling includes the CQI corresponding to each transmission point.
  • An embodiment of the present application also proposes a signaling for multipoint transmission, which is sent by a network device to a terminal device, and the signaling includes information of a transmission point identifier and information indicating a beam direction of the transmission point.
  • the signaling includes MAC CE signaling.
  • the signaling includes RRC signaling.
  • the signaling includes physical layer downlink control signaling.
  • This patent adds new downlink control signaling and MAC CE design to ensure the reliability of the uplink control channel for multipoint transmission, and optimizes the RI and CQI design based on the characteristics of multipoint transmission.
  • FIG. 1 is a flowchart of an embodiment of an uplink control method of this application
  • FIG. 2 is a schematic diagram of an embodiment of uplink signaling.
  • FIG. 1 is a flowchart of an embodiment of an uplink control method of the present application.
  • An embodiment of the present application provides an uplink control method for multipoint transmission for a terminal device, and includes the following steps 10 to 30:
  • Step 10 The terminal device receives control information, the control information includes a transmission point identifier (TRP ID) and information indicating the beam direction of the uplink control resource of each transmission point;
  • TRP ID transmission point identifier
  • Step 10A The terminal device receives control information, and the control information includes a sending point identifier;
  • the indication of the spatially-related information of the uplink control information is that the available beams are first indicated by RRC signaling, and then the beam information corresponding to each uplink resource is activated by MAC CE.
  • this technology is applied to send multi-point uplink control information, since only one uplink sending point sends, it can be used to indicate that the beam information corresponding to each resource is the resource of the sending point. If extended to multiple upstream transmission points, each upstream transmission resource corresponding to each transmission point is required. Therefore, in this embodiment, the identification information of the uplink transmission point is introduced to indicate the transmission point corresponding to the transmission beam.
  • the number of uplink transmission points is configurable, and the physical maximum number depends on the number of transmission antennas and the number of panels of the terminal device, such as 2, 4, 6, 8, ....
  • the sending point identification it is also limited to the number of identification bits, for example, a maximum of 4 is supported.
  • Step 10B The terminal device receives MAC CE information, indicating the transmission beam direction of the uplink control resource of each transmission point;
  • the beam indication information is sent through the MAC CE to activate the transmission beam direction of each PUCCH resource.
  • each panel transmits a beam in a different direction
  • the downlink control signaling increases the panel ID, which makes the transmit beams of different panels in different directions.
  • the number of bits of the control information is 2 bits. Further preferably, the number of bits of the beam indication information for multi-point transmission is 2 bits.
  • control information refers to the information contained in RRC signaling, MAC CE signaling, and physical layer control signaling as "control information.”
  • this embodiment may also include the following steps:
  • Step 10C The terminal device receives downlink control signaling, and the downlink control signaling further includes information indicating resources occupied by the uplink control signaling;
  • Step 20 The terminal device sends uplink control signaling at the sending point and the beam direction;
  • the terminal device sends uplink control signaling at multiple sending points, and any two sending points have different resources for sending the uplink control signaling. To ensure the reliability of uplink control information, it is sent on multiple uplink antennas/panels.
  • the resources of the PUCCH sent by multiple uplink antennas/panels are different, and the diversity characteristic is obtained.
  • the uplink control channel (PUCCH) of multiple TRPs is repeated, and different PUCCH repetitions need to support different spatial related information. Further study how to instruct to configure this spatially related information for HARQ-ACK transmission for each TRP.
  • the method of the present application further includes the following steps:
  • Step 30 The uplink control signaling includes RI to indicate the number of layers corresponding to the transmission points; and or, the uplink control signaling includes the CQI corresponding to each transmission point.
  • the RI for multipoint transmission is extended to indicate the number of layers sent at different points.
  • the terminal reports the rank number of each transmission point.
  • the terminal when sending up to 4 layers in the downlink, the terminal adds information to indicate the rank number of two TRPs.
  • the number of streams that can be selected is (1, 1), (2, 1), (1,2), (2 , 2), (3, 1), (1, 3).
  • CQI information corresponding to several assumptions is transmitted according to the number of transmission points and the transmission order of downlink control information. For example, when the number of transmission points is 2, CQI information of the first TRP1, CQI information of the second TRP, and CQI information of the first TRP1 and TRP2 are sent in sequence.
  • FIG. 2 is a schematic diagram of an embodiment of uplink signaling.
  • An embodiment of the present application also proposes a signaling for multipoint transmission, which is sent by a network device to a terminal device, and the signaling includes information of a transmission point identifier and information indicating a beam direction of the transmission point.
  • the signaling includes RRC signaling or MAC CE signaling. Indicate available beams through RRC signaling, and then activate the beam information corresponding to each uplink resource through MAC CE.
  • one embodiment is to add multi-point transmission beam indication information to the physical layer control signaling, and together with the ARI information in the downlink control signaling to indicate the uplink control resources sent by the terminal and the Beam direction.
  • Another embodiment is MAC CE signaling, which adds the sending point identifier and the corresponding beam indication on the basis of the existing MAC CE.
  • the specific design is shown in Figure 2 where Oct 3 contains the TRP ID; Oct 4 contains the information indicating the beam direction.
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation the way.
  • the technical solution of the present invention can be embodied in the form of a software product in essence or part that contributes to the existing technology.
  • the computer software product is stored in a storage medium and includes several instructions to make a A terminal device (which may be a mobile phone, personal computer, server, or network device, etc.) executes the methods described in the various embodiments of the present invention.

Landscapes

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

Abstract

The present application discloses an uplink control method and signaling for multi-point transmission. In order to increase the reliability of uplink control information, downlink control signaling and an MAC CE are added to indicate a beam direction of each uplink transmission point. According to the features of multi-point transmission, the RI and CQI information of uplink feedback is optimized. The solution of the present applicaiton ensures the reliability of an uplink control channel for multi-point transmission.

Description

一种用于多点发送的上行控制方法和信令An uplink control method and signaling for multipoint transmission
本申请要求于2019年1月11日提交中国国家知识产权局、申请号为201910028065.X、发明名称为“一种用于多点发送的上行控制方法和信令”的中国专利申请的优先权，该在先申请的全部内容通过引用结合在本申请中。This application requires the priority of the Chinese patent application submitted to the State Intellectual Property Office of China on January 11, 2019 with the application number 201910028065.X and the invention titled "An Uplink Control Method and Signaling for Multipoint Transmission" , The entire content of this prior application is incorporated by reference in this application.
技术领域Technical field
本申请涉及移动通信技术领域，尤其涉及一种用于多点发送的上行控制方法和信令。The present application relates to the technical field of mobile communications, and in particular, to an uplink control method and signaling for multipoint transmission.
背景技术Background technique
5G NR系统支持了多波束发送机制，R16版本要进一步增强多面板发送来进一步增强可靠性和鲁棒性，支持联合发送。The 5G NR system supports a multi-beam transmission mechanism. The R16 version needs to further enhance multi-panel transmission to further enhance reliability and robustness, and supports joint transmission.
多面板联合发送时，需要增强下行控制信道，以便能够同时调度多个面板和多个发送点，一种方式是通过一个统一的控制信道来调度多个点和多个面板，这种方式用一个控制信令指示多个点的调度信息、HARQ信息和预编码信息等，需要对现有技术的下行控制信道进行改进。When multi-panel joint transmission is required, the downlink control channel needs to be enhanced so that multiple panels and multiple transmission points can be scheduled at the same time. One way is to schedule multiple points and multiple panels through a unified control channel. The control signaling indicates scheduling information, HARQ information and precoding information of multiple points, etc., and the downlink control channel of the prior art needs to be improved.
发明内容Summary of the invention
本申请提出一种用于多点发送的上行控制方法和信令，解决多个上行天线或多面板时如何分配上行资源的问题。The present application proposes an uplink control method and signaling for multipoint transmission to solve the problem of how to allocate uplink resources when multiple uplink antennas or multiple panels are used.
本申请实施例提供一种用于多点发送的上行控制方法，用于终端设备，包括以下步骤：An embodiment of the present application provides an uplink control method for multipoint transmission for a terminal device, including the following steps:
所述终端设备接收控制信息，所述控制信息包含发送点标识(TRP ID)和表示各个发送点上行控制资源的波束方向的信息；The terminal device receives control information, and the control information includes a transmission point identifier (TRP ID) and information indicating a beam direction of uplink control resources of each transmission point;
所述终端设备在所述发送点(TRP)、所述波束方向发送上行控制信令。The terminal device sends uplink control signaling at the transmission point (TRP) and the beam direction.
优选地，所述控制信息的比特数为2比特。Preferably, the number of bits of the control information is 2 bits.
进一步地，本申请方法包含以下步骤：Further, the method of the present application includes the following steps:
所述终端设备接收下行控制信令，所述下行控制信令中还包含表示上行控制信令所占资源的信息。The terminal device receives downlink control signaling, and the downlink control signaling further includes information indicating resources occupied by the uplink control signaling.
优选地，所述终端设备在多个发送点发送上行控制信令，任意两个发送点用于发送所述上行控制信令的资源不同。Preferably, the terminal device sends uplink control signaling at multiple sending points, and any two sending points have different resources for sending the uplink control signaling.
进一步地，为实现上行反馈，本申请方法进一步包含以下步骤：Further, to achieve uplink feedback, the method of the present application further includes the following steps:
所述上行控制信令中包含RI，用于表示与发送点对应的layer数；和或，所述上行控制信令中包含对应于每一个发送点的CQI。The uplink control signaling includes RI for indicating the number of layers corresponding to the transmission points; and or, the uplink control signaling includes the CQI corresponding to each transmission point.
本申请实施例还提出一种用于多点发送的信令，由网络设备发送到终端设备，所述信令中包含发送点标识、表示发送点波束方向的信息。An embodiment of the present application also proposes a signaling for multipoint transmission, which is sent by a network device to a terminal device, and the signaling includes information of a transmission point identifier and information indicating a beam direction of the transmission point.
优选地，所述信令包含MAC CE信令。Preferably, the signaling includes MAC CE signaling.
优选地，所述信令包含RRC信令。Preferably, the signaling includes RRC signaling.
优选地，所述信令包含物理层下行控制信令。Preferably, the signaling includes physical layer downlink control signaling.
本申请实施例采用的上述至少一个技术方案能够达到以下有益效果：The at least one technical solution adopted in the embodiments of the present application can achieve the following beneficial effects:
本专利增加了新的下行控制信令和MAC CE设计，保证了多点发送的上行控制信道的可靠性，并且依据多点发送的特点，优化了RI和CQI设计。This patent adds new downlink control signaling and MAC CE design to ensure the reliability of the uplink control channel for multipoint transmission, and optimizes the RI and CQI design based on the characteristics of multipoint transmission.
附图说明BRIEF DESCRIPTION
图1为本申请的上行控制方法实施例流程图；FIG. 1 is a flowchart of an embodiment of an uplink control method of this application;
图2为一种上行信令的实施例示意图。FIG. 2 is a schematic diagram of an embodiment of uplink signaling.
具体实施方式detailed description
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实 施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例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。In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described clearly and completely in conjunction with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
本专利讨论多点下行发送的时候，为了增加上行控制信息的可靠性，增加下行控制信令和MAC CE来指示每个上行发送点的波束方向。根据多点发送的特点，优化上行反馈的RI和CQI信息。When this patent discusses multi-point downlink transmission, in order to increase the reliability of uplink control information, downlink control signaling and MAC CE are added to indicate the beam direction of each uplink transmission point. According to the characteristics of multipoint transmission, optimize the RI and CQI information fed back.
以下结合附图，详细说明本申请各实施例提供的技术方案。The technical solutions provided by the embodiments of the present application will be described in detail below in conjunction with the drawings.
图1为本申请的上行控制方法实施例流程图。本申请实施例提供一种多点发送的上行控制方法，用于终端设备，包括以下步骤10～30：FIG. 1 is a flowchart of an embodiment of an uplink control method of the present application. An embodiment of the present application provides an uplink control method for multipoint transmission for a terminal device, and includes the following steps 10 to 30:
步骤10、所述终端设备接收控制信息，所述控制信息包含发送点标识(TRP ID)和表示各个发送点的上行控制资源的波束方向的信息；Step 10: The terminal device receives control information, the control information includes a transmission point identifier (TRP ID) and information indicating the beam direction of the uplink control resource of each transmission point;
进一步地，包含以下步骤10A～B：Further, the following steps 10A-B are included:
步骤10A、所述终端设备接收控制信息，所述控制信息包含发送点标识；Step 10A: The terminal device receives control information, and the control information includes a sending point identifier;
需要说明，现有技术对于上行控制信息的空间相关信息的指示为，首先通过RRC信令指示可用的波束，然后通过MAC CE来激活每个上行资源对应的波束信息。将这个技术应用于发送多点上行控制信息时，由于只有一个上行发送点发送，可用于指示每个资源对应的波束信息，均是该发送点的资源。如果扩展到多个上行发送点，就需要对应每个发送点的每个上行发送资源。因此本实施例通过引入上行发送点的标识信息，指示发送波束对应的发送点。It should be noted that in the prior art, the indication of the spatially-related information of the uplink control information is that the available beams are first indicated by RRC signaling, and then the beam information corresponding to each uplink resource is activated by MAC CE. When this technology is applied to send multi-point uplink control information, since only one uplink sending point sends, it can be used to indicate that the beam information corresponding to each resource is the resource of the sending point. If extended to multiple upstream transmission points, each upstream transmission resource corresponding to each transmission point is required. Therefore, in this embodiment, the identification information of the uplink transmission point is introduced to indicate the transmission point corresponding to the transmission beam.
上行的发送点的数量是可配置的，物理最大数量取决于终端设备的发送天线的个数和面板个数，例如2、4、6、8……。当使用发送点标识时，还限于标识的比特数，例如，最大支持4个。The number of uplink transmission points is configurable, and the physical maximum number depends on the number of transmission antennas and the number of panels of the terminal device, such as 2, 4, 6, 8, .... When the sending point identification is used, it is also limited to the number of identification bits, for example, a maximum of 4 is supported.
步骤10B、所述终端设备接收MAC CE信息，指示各个发送点的上行控制资源的发送波束方向；Step 10B: The terminal device receives MAC CE information, indicating the transmission beam direction of the uplink control resource of each transmission point;
通过MAC CE发送波束指示信息，激活每个PUCCH资源的发送波束方向。The beam indication information is sent through the MAC CE to activate the transmission beam direction of each PUCCH resource.
例如，为支持多个上行面板(panel)，每个面板发送波束方向不同，下行控制信令增加panel ID，这样就使得不同面板的发送波束发送方向不同。For example, in order to support multiple uplink panels (panels), each panel transmits a beam in a different direction, and the downlink control signaling increases the panel ID, which makes the transmit beams of different panels in different directions.
或者用MAC CE激活的IE中增加panel ID，直接就指示各个面板的PUCCH资源的波束方向。Or increase the panel ID in the MAC-activated IE to directly indicate the beam direction of the PUCCH resources of each panel.
为区分不同发送点的不同波束信息，考虑物理层控制信令和MAC层控制信令设计。To distinguish the different beam information of different transmission points, consider the design of physical layer control signaling and MAC layer control signaling.
优选地，所述控制信息的比特数为2比特。进一步优选地，为实现多点发送的所述波束指示信息的比特数为2比特。Preferably, the number of bits of the control information is 2 bits. Further preferably, the number of bits of the beam indication information for multi-point transmission is 2 bits.
需要说明，本申请将RRC信令、MAC CE信令、物理层控制信令所包含的信息，均称为“控制信息”。It should be noted that this application refers to the information contained in RRC signaling, MAC CE signaling, and physical layer control signaling as "control information."
进一步地，本实施例还可以包括以下步骤：Further, this embodiment may also include the following steps:
步骤10C、所述终端设备接收下行控制信令，所述下行控制信令中还包含表示上行控制信令所占资源的信息； Step 10C: The terminal device receives downlink control signaling, and the downlink control signaling further includes information indicating resources occupied by the uplink control signaling;
步骤20、所述终端设备在所述发送点、所述波束方向发送上行控制信令；Step 20: The terminal device sends uplink control signaling at the sending point and the beam direction;
优选地，所述终端设备在多个发送点发送上行控制信令，任意两个发送点用于发送所述上行控制信令的资源不同。为保证上行控制信息的可靠性，在多个上行天线/面板上发送。Preferably, the terminal device sends uplink control signaling at multiple sending points, and any two sending points have different resources for sending the uplink control signaling. To ensure the reliability of uplink control information, it is sent on multiple uplink antennas/panels.
多个上行天线/面板发送的PUCCH的资源不同，获得分集特性。多个TRP的上行控制信道(PUCCH)重复，不同的PUCCH重复需要支持不同的空间相关信息。进一步研究如何指示配置这个空间相关信息用于给每个TRP的HARQ-ACK传输。The resources of the PUCCH sent by multiple uplink antennas/panels are different, and the diversity characteristic is obtained. The uplink control channel (PUCCH) of multiple TRPs is repeated, and different PUCCH repetitions need to support different spatial related information. Further study how to instruct to configure this spatially related information for HARQ-ACK transmission for each TRP.
进一步地，为实现上行反馈，本申请方法进一步包含以下步骤：Further, to achieve uplink feedback, the method of the present application further includes the following steps:
步骤30、所述上行控制信令中包含RI，用于表示与发送点对应的layer 数；和或，所述上行控制信令中包含对应于每一个发送点的CQI。Step 30: The uplink control signaling includes RI to indicate the number of layers corresponding to the transmission points; and or, the uplink control signaling includes the CQI corresponding to each transmission point.
多点发送的RI扩展为指示不同点发送的layer数。多点发送中，不同发送点发送不同的layer时，终端上报每个发送点的rank数量。The RI for multipoint transmission is extended to indicate the number of layers sent at different points. In multipoint transmission, when different transmission points send different layers, the terminal reports the rank number of each transmission point.
例如，下行最多4个layer发送的时候，终端增加信息来指示选择两个TRP的rank数，可以选择的流数为(1，1)，(2，1)，(1，2)，(2，2)，(3，1)，(1，3)。For example, when sending up to 4 layers in the downlink, the terminal adds information to indicate the rank number of two TRPs. The number of streams that can be selected is (1, 1), (2, 1), (1,2), (2 , 2), (3, 1), (1, 3).
多点发送中，根据下行控制信息的发送点数和发送排序，发送对应几种假设对应的CQI信息。举例来说，当发送点数是2的时候，依次发送第一个TRP1的CQI信息，第二个TRP的CQI信息，第一个TRP1和TRP2同时发送的CQI信息。In multipoint transmission, CQI information corresponding to several assumptions is transmitted according to the number of transmission points and the transmission order of downlink control information. For example, when the number of transmission points is 2, CQI information of the first TRP1, CQI information of the second TRP, and CQI information of the first TRP1 and TRP2 are sent in sequence.
图2为一种上行信令的实施例示意图。FIG. 2 is a schematic diagram of an embodiment of uplink signaling.
本申请实施例还提出一种用于多点发送的信令，由网络设备发送到终端设备，所述信令中包含发送点标识、表示发送点波束方向的信息。An embodiment of the present application also proposes a signaling for multipoint transmission, which is sent by a network device to a terminal device, and the signaling includes information of a transmission point identifier and information indicating a beam direction of the transmission point.
优选地，所述信令包含RRC信令或MAC CE信令。通过RRC信令指示可用的波束，然后通过MAC CE来激活每个上行资源对应的波束信息。Preferably, the signaling includes RRC signaling or MAC CE signaling. Indicate available beams through RRC signaling, and then activate the beam information corresponding to each uplink resource through MAC CE.
为区分不同发送点的波束信息，一个实施例是在物理层控制信令中增加多点发送波束指示信息，和下行控制信令中的ARI信息共同指示终端发送的上行控制资源以及各个发送点的波束方向。In order to distinguish the beam information of different transmission points, one embodiment is to add multi-point transmission beam indication information to the physical layer control signaling, and together with the ARI information in the downlink control signaling to indicate the uplink control resources sent by the terminal and the Beam direction.
另一实施例为MAC CE控制信令，在现有MAC CE的基础上增加发送点标识以及对应的波束指示。具体设计如图2中的Oct 3包含TRP ID；Oct 4包含表示波束方向的信息。Another embodiment is MAC CE signaling, which adds the sending point identifier and the corresponding beam indication on the basis of the existing MAC CE. The specific design is shown in Figure 2 where Oct 3 contains the TRP ID; Oct 4 contains the information indicating the beam direction.
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明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终端设备(可以是手机，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的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation the way. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence or part that contributes to the existing technology. The computer software product is stored in a storage medium and includes several instructions to make a A terminal device (which may be a mobile phone, personal computer, server, or network device, etc.) executes the methods described in the various embodiments of the present invention.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视本发明的保护范围。The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. These improvements and retouches also It should be regarded as the protection scope of the present invention.

Claims (10)

  1. 一种用于多点发送的上行控制方法，用于终端设备，其特征在于，包括以下步骤：An uplink control method for multi-point transmission, which is used for terminal equipment, is characterized by comprising the following steps:
    所述终端设备接收控制信息，所述控制信息包含发送点标识和表示各个发送点上行控制资源的波束方向的信息；The terminal device receives control information, and the control information includes a transmission point identifier and information indicating a beam direction of uplink control resources of each transmission point;
    所述终端设备在所述发送点、所述波束方向发送上行控制信令。The terminal device sends uplink control signaling at the sending point and the beam direction.
  2. 如权利要求1所述的上行控制方法，其特征在于，The uplink control method according to claim 1, wherein:
    所述控制信息的比特数为2比特。The number of bits of the control information is 2 bits.
  3. 如权利要求1所述方法，其特征在于，The method according to claim 1, wherein
    所述终端设备接收下行控制信令，所述下行控制信令中包含表示上行控制信令所占资源的信息。The terminal device receives downlink control signaling, and the downlink control signaling includes information indicating resources occupied by the uplink control signaling.
  4. 如权利要求1～3任意一项所述方法，其特征在于，The method according to any one of claims 1 to 3, characterized in that
    所述终端设备在多个发送点发送上行控制信令，任意两个发送点用于发送所述上行控制信令的资源不同。The terminal device sends uplink control signaling at multiple sending points, and any two sending points have different resources for sending the uplink control signaling.
  5. 如权利要求1～3任意一项所述方法，其特征在于，The method according to any one of claims 1 to 3, characterized in that
    所述上行控制信令中包含RI，用于表示与发送点对应的layer数。The uplink control signaling includes RI, which is used to indicate the number of layers corresponding to the transmission point.
  6. 如权利要求1～3任意一项所述方法，其特征在于，The method according to any one of claims 1 to 3, characterized in that
    所述上行控制信令中包含对应于每一个发送点的CQI。The uplink control signaling includes the CQI corresponding to each transmission point.
  7. 一种用于多点发送的信令，由网络设备发送到终端设备，其特征在于，A signaling used for multi-point transmission is sent by a network device to a terminal device.
    所述信令中包含发送点标识、表示发送点波束方向的信息。The signaling includes the identifier of the transmission point and information indicating the beam direction of the transmission point.
  8. 如权利要求7所述信令，其特征在于，所述信令包含MAC CE信令。The signaling according to claim 7, wherein the signaling includes MAC CE signaling.
  9. 如权利要求7所述信令，其特征在于，所述信令包含RRC信令。The signaling according to claim 7, wherein the signaling includes RRC signaling.
  10. 如权利要求7所述信令，其特征在于，所述信令包含物理层下行控制信令。The signaling according to claim 7, wherein the signaling includes physical layer downlink control signaling.
PCT/CN2020/071581 2019-01-11 2020-01-11 Uplink control method and signaling for multi-point transmission WO2020143810A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910028065.XA CN111436124B (en) 2019-01-11 2019-01-11 Uplink control method and signaling device for multipoint transmission
CN201910028065.X 2019-01-11

Publications (1)

Publication Number Publication Date
WO2020143810A1 true WO2020143810A1 (en) 2020-07-16

Family

ID=71521457

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/071581 WO2020143810A1 (en) 2019-01-11 2020-01-11 Uplink control method and signaling for multi-point transmission

Country Status (2)

Country Link
CN (1) CN111436124B (en)
WO (1) WO2020143810A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108023722A (en) * 2016-11-04 2018-05-11 中兴通讯股份有限公司 The sending method and device of a kind of control channel
WO2018084331A1 (en) * 2016-11-02 2018-05-11 엘지전자 주식회사 Method for transmitting rrc connection request, and terminal therefor
CN108092697A (en) * 2017-05-11 2018-05-29 中兴通讯股份有限公司 The transmission method and device of signal
CN108111267A (en) * 2017-05-05 2018-06-01 中兴通讯股份有限公司 The transmission method and system of signal and the sending method and device of control information

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107872304B (en) * 2016-09-28 2020-04-28 华为技术有限公司 Transmission method of uplink control signal, network side equipment and terminal equipment
US10980066B2 (en) * 2016-11-06 2021-04-13 Lg Electronics Inc. Method and user equipment for transmitting random access signals, and method and base station for receiving random access signals
WO2018141246A1 (en) * 2017-02-03 2018-08-09 Huawei Technologies Co., Ltd. Downlink control information for network coordination schemes
US10433312B2 (en) * 2017-02-05 2019-10-01 Lg Electronics Inc. Method of performing uplink transmission in wireless communication system and apparatus therefor
WO2018174641A2 (en) * 2017-03-23 2018-09-27 Samsung Electronics Co., Ltd. Method and apparatus for transmitting data in wireless communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018084331A1 (en) * 2016-11-02 2018-05-11 엘지전자 주식회사 Method for transmitting rrc connection request, and terminal therefor
CN108023722A (en) * 2016-11-04 2018-05-11 中兴通讯股份有限公司 The sending method and device of a kind of control channel
CN108111267A (en) * 2017-05-05 2018-06-01 中兴通讯股份有限公司 The transmission method and system of signal and the sending method and device of control information
CN108092697A (en) * 2017-05-11 2018-05-29 中兴通讯股份有限公司 The transmission method and device of signal

Also Published As

Publication number Publication date
CN111436124B (en) 2023-08-08
CN111436124A (en) 2020-07-21

Similar Documents

Publication Publication Date Title
JP7301122B2 (en) Method, terminal device and network side device for transmission of uplink channel by multi-beam
WO2022083605A1 (en) Method and apparatus for processing channel state information, and terminal
US8687582B2 (en) Method and device for transmitting semi-persistent scheduling data
CN113271180B (en) Feedback method of hybrid automatic repeat request (HARQ) bitmap information and related equipment
WO2021204208A1 (en) Determination method for channel state information csi report, and communication device
CN111278120A (en) Configuration method and transmission method of uplink channel, network side equipment and terminal
WO2019095808A1 (en) Method for transmitting aperiodic channel state information, terminal device, and network device
CN103748815A (en) Transmitting uplink control information
US11012130B2 (en) Rank indication method, rank indication reporting method, device and system, and storage medium
JP7222066B2 (en) Method for beam failure recovery, terminal equipment and network side equipment
US11296763B2 (en) Determining information corresponding to beamforming
WO2020253825A1 (en) Uplink transmission indication method and apparatus, and communication device
WO2020221349A1 (en) Method and apparatus for reporting beam failure
US11272397B2 (en) Flexible network control of uplink data duplication
US20240064816A1 (en) Random access method and apparatus, and electronic device
CN110858775B (en) Method, terminal equipment and network side equipment for multi-beam transmission of uplink signals
US20220302980A1 (en) Method for reporting information, method for indicating information, terminal device, and network device
CN110830188B (en) Reference signal resource configuration method, network side equipment and terminal equipment
WO2021004390A1 (en) Communication method and device and computer storage medium
WO2020143810A1 (en) Uplink control method and signaling for multi-point transmission
US20230052506A1 (en) Method of sounding reference signal (srs)-assisted sd beam and fd vector reporting for type ii channel state information (csi)
CN110445588B (en) Synchronous signal block transmission method, network side equipment and terminal equipment
WO2020002424A1 (en) Interference pre-cancellation and precoder projection compensation for multi-user communications in wireless networks
CN116325533A (en) Reporting channel state information based on transmission hypotheses
CN109067507A (en) A kind of transmission method, base station and user equipment

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20738116

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20738116

Country of ref document: EP

Kind code of ref document: A1