Channel transmission method, electronic device, and storage medium

Patent metadata

Field	Value
Publication number	US-12507283-B2
Application number	US-202117487320-A
Country	US
Kind code	B2
Filing date	Sep 28, 2021
Priority date	Mar 28, 2019
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

A channel transmission method is provided. The channel transmission method comprises: a terminal device determines the initial position of a channel detection time window on the basis of a message sent by a network device, the initial position being positioned after a time delay after RACH timing or PUSCH timing finishes; the time delay is at least two symbols or the time delay is related to a time domain relationship of the RACH timing and PUSCH timing. Another channel transmission method, an electronic device, and a storage medium are also provided.

First claim

The invention claimed is:

1 . A method for channel transmission, applicable to a 2-steps random access, comprising:
determining, by a terminal device, a starting position of a time window for channel detection based on a message transmitted by a network device, the starting position being positioned after a time delay which is after an end of a Random Access Channel (RACH) occasion; wherein the time delay is relevant to a time-domain relationship between the RACH occasion and a Physical Uplink Shared Channel (PUSCH) occasion, and the time delay is relevant to a subcarrier spacing of Physical Downlink Control Channel (PDCCH) or a subcarrier spacing of PUSCH, wherein responsive to that the time-domain relationship between the RACH occasion and the PUSCH occasion is that the PUSCH occasion is after the RACH occasion, the time delay is not less than a sum of a fixed delay and the time difference between the RACH occasion and the PUSCH occasion, wherein the starting position is a starting position of a first symbol of a first Control Resource Set (CORESET) after the time delay which is after the end of the RACH occasion; and wherein the CORESET is a CORESET configured for a Type1 PDCCH common search space, and the Type1-PDCCH common search space, the RACH occasion, and the PUSCH occasion are determined by the terminal device according to the message transmitted by the network device.

2 . The method of claim 1 , wherein the time-domain relationship between the RACH occasion and the PUSCH occasion is determined by the terminal device according to the message transmitted by the network device, or the time-domain relationship between the RACH occasion and the PUSCH occasion is preset.

3 . The method of claim 1 , wherein the fixed delay is one symbol.

4 . The method of claim 1 , further comprising:
starting to detect, by the terminal device, a channel at the starting position.

5 . The method of claim 1 , wherein the channel comprises PDCCH.

6 . The method of claim 1 , wherein the message is a Radio Resource Control (RRC) message or a system message.

7 . The method of claim 1 , wherein the time delay is a non-fixed value.

8 . A method for channel transmission, applicable to a 2-steps random access, comprising:
determining, by a network device, a starting position of a time window for channel transmission, the starting position being positioned after a time delay which is after an end of a Random Access Channel (RACH) occasion; wherein the time delay is relevant to a time-domain relationship between the RACH occasion and a Physical Uplink Shared Channel (PUSCH) occasion, and the time delay is relevant to a subcarrier spacing of Physical Downlink Control Channel (PDCCH) or a subcarrier spacing of PUSCH, wherein responsive to that the time-domain relationship between the RACH occasion and the PUSCH occasion is that the PUSCH occasion is after the RACH occasion, the time delay is not less than a sum of a fixed delay and the time difference between the RACH occasion and the PUSCH occasion, and wherein the starting position is a starting position of a first symbol of a first Control Resource Set (CORESET) after the time delay which is after the end of the RACH occasion; the method further comprising: determining, by the network device, a Type1 PDCCH common search space, the RACH occasion, and the PUSCH occasion, wherein the CORESET is a CORESET configured for the Type1-PDCCH common search space.

9 . The method of claim 8 , wherein the time delay is a non-fixed value.

10 . The method of claim 8 , wherein the time-domain relationship between the RACH occasion and the PUSCH occasion is preset.

11 . The method of claim 8 , wherein the fixed delay is one symbol.

12 . The method of claim 8 , wherein the channel comprises PDCCH.

13 . A terminal device, comprising a processor and a memory for storing a computer program executable by the processor, wherein
the processor is configured to run the computer program to determine a starting position of a time window for channel detection based on a message transmitted by a network device, the starting position being positioned after a time delay which is after an end of a Random Access Channel (RACH) occasion; wherein the time delay is relevant to a time-domain relationship between the RACH occasion and a Physical Uplink Shared Channel (PUSCH) occasion, and the time delay is relevant to a subcarrier spacing of Physical Downlink Control Channel (PDCCH) or a subcarrier spacing of PUSCH, wherein responsive to that the time-domain relationship between the RACH occasion and the PUSCH occasion is that the PUSCH occasion is after the RACH occasion, the time delay is not less than a sum of a fixed delay and the time difference between the RACH occasion and the PUSCH occasion, wherein the starting position is a starting position of a first symbol of a first Control Resource Set (CORESET) after the time delay which is after the end of the RACH occasion; and wherein the CORESET is a CORESET configured for a Type1 PDCCH common search space, and the Type1-PDCCH common search space, the RACH occasion, and the PUSCH occasion are determined by the terminal device according to the message transmitted by the network device.

14 . The terminal device of claim 13 , wherein the time-domain relationship between the RACH occasion and the PUSCH occasion is determined by the terminal device according to the message transmitted by the network device, or the time-domain relationship between the RACH occasion and the PUSCH occasion is preset.

15 . The terminal device of claim 13 , wherein the fixed delay is one symbol.

16 . The terminal device of claim 13 , wherein the processor is further configured to start to detect a channel at the starting position.

17 . The terminal device of claim 13 , wherein the channel comprises PDCCH.

18 . The terminal device of claim 13 , wherein the message is a Radio Resource Control (RRC) message or a system message.

19 . The terminal device of claim 13 , wherein the time delay is a non-fixed value.

20 . A network device, comprising a processor and a memory for storing a computer program executable by the processor, wherein
the processor is configured to run the computer program to execute steps of the method of claim 8 .

Assignees

• Guangdong Oppo Mobile Telecommunications Corp Ltd

Inventors

• He Chuanfeng
• Lin Yanan

Classifications

• H04W74/0836 Primary

  with 2-step access · CPC title

• H04L27/26025

  Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003) · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04W72/1268

  of uplink data flows · CPC title

• H04W72/231

  the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling · CPC title