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Pt-rs port indication method, device and base station based on non-codebook uplink pusch transmission

A PT-RS, non-codebook technology, applied in the field of PT-RS port indication based on non-codebook uplink PUSCH transmission, can solve the problem of not considering the impact of the number of SRS resource indication bits

Active Publication Date: 2020-09-01
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0011] The existing solution uses the PTRS-DMRS association domain (association) indication in DCI format 0_1, but only gives the design of this domain in DCI for the configuration of a single PT-RS port, and does not consider the number of SRS resources on the domain. Indicates the impact of the number of bits, as shown in Table 1

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  • Pt-rs port indication method, device and base station based on non-codebook uplink pusch transmission
  • Pt-rs port indication method, device and base station based on non-codebook uplink pusch transmission
  • Pt-rs port indication method, device and base station based on non-codebook uplink pusch transmission

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] An embodiment of the present invention provides a PT-RS port indication method based on non-codebook uplink PUSCH transmission, such as Figure 4 As shown, the method includes:

[0042] S11. The base station determines the number of bits in the PTRS-DMRS association field in the DCI to be sent according to the number of SRS resources,...

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Abstract

The present invention provides a PT-RS port indication method, device and base station based on non-codebook uplink PUSCH transmission. The method includes: determining the number of bits in the PTRS-DMRS association field in the DCI to be sent according to the number of SRS resources, the number of PT-RS ports, and the maximum uplink rank number supported by the UE; sending the DCI to the UE, and the DCI carries and The indication bit with the same number of bits as the number of bits is used to indicate the association relationship between the PT-RS port and the DMRS port. The invention can realize the indication of the association relationship between the PT-RS port and the DMRS port under multiple PT-RS ports.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a PT-RS port indication method, device and base station based on non-codebook uplink PUSCH transmission. Background technique [0002] 5G NR (New Radio, new air interface) supports non-codebook-based uplink PUSCH (Physical Uplink Shared Channel, physical uplink shared channel) transmission, which is divided into the following three steps: [0003] (1) The base station configures and triggers UE (User Equipment, user equipment) to send multiple single-port SRS (Sounding Reference Signal, sounding reference signal) resources; [0004] (2) The base station instructs the UE to use one or more of the multiple single-port SRS resources when sending the PUSCH through DCI (Downlink Control Information, downlink control information); [0005] (3) UE sends PUSCH. [0006] In the step (2), the DCI will also indicate which DMRS (Demodulation Reference Signal, demodul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0053H04L5/0091H04L5/0007H04L5/0051H04L5/0048H04W72/23
Inventor 黄甦
Owner SPREADTRUM COMM (SHANGHAI) CO LTD