Sequence mapping method and apparatus for common reference signal, storage medium, and terminal

Patent metadata

Field	Value
Publication number	US-12250172-B2
Application number	US-202017773107-A
Country	US
Kind code	B2
Filing date	Oct 22, 2020
Priority date	Oct 31, 2019
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

A method and apparatus for mapping a sequence of a common reference signal, a storage medium, and a terminal are provided. The method includes: determining a reference point for mapping the sequence of the common reference signal; and mapping the sequence of the common reference signal based on the reference point for obtaining data of the common reference signal.

First claim

What is claimed is:

1. A method for mapping a sequence of a common reference signal, comprising:
determining a reference point for mapping the sequence of the common reference signal; and
mapping the sequence of the common reference signal based on the reference point to obtain data of the common reference signal;
wherein the sequence of the common reference signal comprises a first sequence used for demodulating a Physical Broadcast Channel (PBCH), and said determining the reference point for mapping the sequence of the common reference signal comprises:
determining a time slot with a Synchronization Signal and PBCH block (SSB); and
in the time slot with the SSB, determining a subcarrier 0 of a resource block with a smallest number in a resource block where the SSB is located as the reference point for mapping the first sequence used for demodulating the PBCH.

2. The method according to claim 1 , further comprising:
determining a downlink shared channel and a control channel for carrying some signals other than the common reference signal; and
determining a subcarrier 0 of a resource block with a smallest number in the resource block where a Control Resource Set (CORESET) 0 is located as a reference point for demodulating the downlink shared channel and the control channel.

3. An apparatus for mapping a sequence of a common reference signal, comprising:
a reference point determining circuitry, adapted to determine a reference point for mapping the sequence of the common reference signal; and
a mapping circuitry, adapted to map the sequence of the common reference signal based on the reference point to obtain data of the common reference signal;
wherein the sequence of the common reference signal comprises a first sequence used for demodulating a Physical Broadcast Channel (PBCH), and the reference point determining circuitry is further configured to:
determine a time slot with a Synchronization Signal and PBCH block (SSB); and
in the time slot with the SSB, determine a subcarrier 0 of a resource block with a smallest number in a resource block where the SSB is located as the reference point for mapping the first sequence used for demodulating the PBCH.

4. A non-transitory storage medium storing one or more programs, the one or more programs comprising computer instructions, which, when executed by a processor, cause the processor to:
determine a reference point for mapping a sequence of a common reference signal; and
map the sequence of the common reference signal based on the reference point to obtain data of the common reference signal;
wherein the sequence of the common reference signal comprises a first sequence used for demodulating a Physical Broadcast Channel (PBCH), and the processor is further caused to:
determine a time slot with a Synchronization Signal and PBCH block (SSB); and
in the time slot with the SSB, determine a subcarrier 0 of a resource block with a smallest number in a resource block where the SSB is located as the reference point for mapping the first sequence used for demodulating the PBCH.

Assignees

• Beijing Unisoc Comm Tech Co Ltd

Inventors

• Wang Hualei
• Zhou Huan

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title

• H04L5/0051 Primary

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04L5/005 Primary

  of common pilots, i.e. pilots destined for multiple users or terminals · CPC title