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Multipoint uplink data transmission method and device

A line data, multi-point technology, applied in the field of uplink data transmission, can solve the problem of inflexible configuration of data transmission resources, and achieve the effect of small signaling overhead and flexible signaling switching

Active Publication Date: 2021-08-20
CHINA ACADEMY OF INFORMATION & COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This application proposes a multi-point uplink data transmission method and device, aiming to solve the problem of inflexible allocation of mobile terminal uplink data transmission resources under the condition of multiple TRPs

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  • Multipoint uplink data transmission method and device
  • Multipoint uplink data transmission method and device
  • Multipoint uplink data transmission method and device

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Embodiment Construction

[0048] In order to make the objects, technical solutions, and advantages of the present application, the present application will be described in conjunction with the specific examples and corresponding drawings of the present application. Obviously, the described embodiments are merely the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative labor premises.

[0049] In order to reduce the downlink control signaling design of the uplink data of the multi-TRP, it is preferable to reuse the existing downlink control signaling bits, and the multi-beam (ie, TRP) mapping of the uplink data is repeated (ie, " Pattern) There is enough flexibility to configure to be used to change the beam direction of the mobile and rotation of the terminal in the case of high frequency bands. Considering dynamic signaling instructions to ensure th...

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Abstract

The invention discloses a multipoint uplink data transmission method and equipment. The method comprises the following steps that two SRS resource sets are configured, wherein each set comprises one or more SRS resources, each set is associated with a TRP, the dynamic downlink control signaling comprises two pieces of SRI indication information, the first SRI indication information is used for indicating resources in a first SRS resource set, the second SRI indication information is used for indicating resources in a second STS resource set, the dynamic downlink control signaling comprises TRP control information, and the TRP control information is used for controlling the switching of the TRP. The equipment is used for implementing the method. According to the invention, the problem of inflexible uplink data transmission resource configuration of the mobile terminal under the multi-TRP condition is solved.

Description

Technical field [0001] The present application relates to the field of mobile communication, and more particularly to a method and apparatus for uplink data transmission. Background technique [0002] The 5G NR standard supports the uplink data transmission of a single transmission receiving node (TRP). The flow of non-code transmission is: First, the terminal calculates the downlink precoding code word according to the measurement result of the downlink CSI-RS, and is used for the uplink channel detection reference signal. (SRS) Send, then the base station selects one or more SRS resources according to the received uplink SRS, by the SRI notification terminal, the final terminal uses the corresponding precoding code word according to the SRI indicated by the base station, and performs transmission of uplink data. When the high-level configuration is configured to transmit, only the number of SRS Resource Sets, the maximum SRS resource in the SRS resource set is allowed to be rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W72/046H04W72/53H04W72/23
Inventor 焦慧颖王志勤杜滢魏贵明徐菲沈霞闫志宇刘晓峰
Owner CHINA ACADEMY OF INFORMATION & COMM
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