Positioning reference signal transmission method and device, electronic equipment, and storage medium

A technology for positioning reference signals and sending methods, which is applied in the direction of transmission path sub-channel allocation, transmission system, digital transmission system, etc.

Active Publication Date: 2020-10-30
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the proposal of Redcap UE will make the transmission of PRS adapt to the bandwidth supported by Redcap UE, which poses a challenge

Method used

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  • Positioning reference signal transmission method and device, electronic equipment, and storage medium
  • Positioning reference signal transmission method and device, electronic equipment, and storage medium
  • Positioning reference signal transmission method and device, electronic equipment, and storage medium

Examples

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example 1

[0149] In application scenarios, devices with sensors, video surveillance and wearable devices generally have relatively low bandwidth requirements, 20-40M, or even 10M. Take Redcap UE supporting 20M bandwidth as an example.

[0150] The PRS is a downlink signal sent by the base station in the 3GPP NR air interface for positioning. As we all know, the positioning bandwidth is directly proportional to the accuracy, so the PRS bandwidth ranges from a minimum of 24 Physical Resource Blocks (Physical Resource Block, PRB) to a maximum of 272 PRB. Usually, the base station will select the appropriate bandwidth according to the positioning accuracy requirements and system resources. For example, 96 PRBs, SCS=30KHz, approximately 35M, and two consecutive time-domain symbols are configured at a minimum.

[0151] If you want to improve the accuracy, you will configure a larger bandwidth or more symbols in the time domain, or together (the expansion accuracy of the frequency domain band...

example 2

[0154] For a PRS sequence with a bandwidth of n, the base station configures the Redcap UE to use cross-symbol frequency hopping, that is, the first part of the sequence is configured in the first symbol, and the second part is configured in the adjacent different bandwidths of the second symbol. The third symbol and so on (if the bandwidth exceeds 2 times).

[0155] In terms of configuration, the PRS sequence of the PRS is divided into n parts; for example, there are 2 parts in the figure, the first part is sent in the first frequency domain of the first symbol; the second part is sent in the second frequency domain of the second symbol, And so on for the third and fourth symbols.

[0156] Another solution is that the first part is sent in the first frequency domain of the first symbol; the second part is sent in the second frequency domain of the third symbol; the second part is sent in the first frequency domain of the second symbol, as shown in the figure The second part ...

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Abstract

The embodiments of the present disclosure provide a positioning reference signal transmission method and device, electronic equipment, and a storage medium. The positioning reference signal transmitting method in the positioning reference signal transmission method includes: transmitting a composite PRS according to a composite sequence, wherein the composite sequence includes a plurality of subsequences; and the part of the composite PRS corresponding to the subsequence is a truncated PRS; the bandwidth occupied by the composite PRS is greater than the bandwidth occupied by the truncated PRS;and the composite PRS and the truncated PRS are used for positioning measurement of different types of UE.

Description

technical field [0001] Embodiments of the present disclosure relate to the field of wireless communication but are not limited to the field of wireless communication, and in particular to a positioning reference signal (Position Reference Signal, PRS) transmission method and device, electronic equipment, and a storage medium. Background technique [0002] At present, the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) has launched the communication protocol version (Release, R) R17 light terminal (Reduced capability NR devices, Redcap) project research, the project goal is to coexist with R15 or R16 terminals In the case of the UE, the complexity of the UE is reduced and the cost is saved. [0003] The PRS is a downlink signal sent by an uplink base station. The PRS can be used for UE positioning. However, the proposal of the Redcap UE will make the transmission of the PRS adapt to the bandwidth supported by the Redcap UE, which poses a challe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W64/00
CPCH04L5/0048H04W64/00H04L5/0092H04L5/0069H04L5/0064H04L5/0023H04L5/0012H04L27/26132G01S5/0009G01S5/0205
Inventor 刘洋
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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