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Mapping method of positioning reference signal, terminal and network side equipment

A technology for positioning reference signals and network side devices, applied in the field of communications

Active Publication Date: 2022-03-08
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the same comb size (comb size) and the same number of symbols, multiple configurations may be supported, but how to configure the relative RE offset to support multiple configurations has not yet been determined

Method used

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  • Mapping method of positioning reference signal, terminal and network side equipment
  • Mapping method of positioning reference signal, terminal and network side equipment
  • Mapping method of positioning reference signal, terminal and network side equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0145] In this embodiment, the relative REoffset of the symbol of the positioning reference signal resource is indicated to the terminal through a table.

[0146] Wherein, the table may contain at least one kind of relative RE offset configuration information, and the configuration information may be expressed as an array, sequence, vector, or unit. According to the protocol agreement and / or the instruction of the network side device, the UE uses certain configuration information in the table to derive the relative RE offset. This configuration information can include values, which are used to represent the previous position of the positioning reference signal resource The relative RE offset of symbols.

[0147] Further, the number of symbols of the positioning reference signal resources configured by the network side not less than

[0148] Furthermore, if the symbolic number more than the The UE shall assume that the l'th symbol in the positioning reference signa...

Embodiment 2

[0169]In this embodiment, the relative REoffset of the symbol of the positioning reference signal resource is indicated to the terminal through a generation formula.

[0170] Specifically, according to the protocol agreement and / or the instruction of the network side, the UE uses a certain generation formula to derive the relative RE offset of each symbol of the positioning reference signal resource. According to the generation formula, the UE can generate the relative RE offset of each symbol of the positioning reference signal resource. The generation formula is related to the comb structure of the positioning reference signal resource, the symbol index and / or the number of symbols in the resource. In the generation formula, l' represents the symbol index in the resource, in Indicates the number of symbols occupied by the positioning reference signal resource, l'=0 indicates the starting symbol index of the positioning reference signal resource, K TC Indicates the size ...

Embodiment 3

[0231] In this embodiment, the relative REoffset of the symbol of the positioning reference signal resource is indicated to the terminal through an array.

[0232] The configuration or protocol on the network side stipulates a length of An array of (can also be a sequence or a vector), which is used to represent the front of the positioning reference signal resource The relative RE offset of symbols. According to the array, the UE can derive the relative RE offset of each symbol after the first symbol of the positioning reference signal resource.

[0233] Further, the number of symbols of the positioning reference signal resources configured by the network side not less than the length of the array

[0234] Furthermore, if the number of symbols greater than the length of the array The UE shall assume that the l'th symbol in the positioning reference signal resource is the same as the The RE positions (or relative RE offsets) of the symbols are the same. Among th...

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Abstract

The invention discloses a positioning reference signal mapping method, a terminal and a network side device, belonging to the technical field of communication. The positioning reference signal mapping method is applied to a terminal, and includes: acquiring positioning reference signal mapping information, the mapping information indicating relative resource element offsets of at least some symbols in positioning reference signal resources; determining positioning according to the mapping information The relative resource element offset for each symbol in the reference signal resource. The technical solution of the present invention provides a solution for positioning reference signal pattern configuration.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a positioning reference signal mapping method, terminal and network side equipment. Background technique [0002] A positioning reference signal (Positioning Reference Signal, PRS) is a reference signal (Reference Signal, RS) used for downlink positioning. A terminal (User Equipment, UE) measures PRS sent from multiple cells (cells) or multiple transmission points, and obtains a Reference Signal Time Difference (Reference Signal Time Difference, RSTD) between multiple cells or transmission points. Then the UE sends the measured RSTD information to the Evolved Serving Mobile Location Center (Evolved Serving Mobile Location Center, E-SMLC), and the E-SMLC calculates the location of the UE. [0003] In addition to downlink positioning, LTE also supports uplink positioning. The uplink reference signal used for LTE uplink positioning is a Sounding Reference Signal (SR...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W64/00
CPCH04L5/0048H04W64/00H04L5/005H04L5/0094H04L5/0007H04L5/0053
Inventor 司晔
Owner VIVO MOBILE COMM CO LTD