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Method and device for configuring PRS resources, UE and network equipment

A technology of network equipment and configuration method, which is applied in the configuration of PRS resources, network equipment, and UE fields, and can solve problems such as inability to support NR systems

Pending Publication Date: 2021-08-31
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to differences between the LTE system and the New Radio (NR) system, the PRS method in LTE cannot support the NR system

Method used

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  • Method and device for configuring PRS resources, UE and network equipment
  • Method and device for configuring PRS resources, UE and network equipment
  • Method and device for configuring PRS resources, UE and network equipment

Examples

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application example 1

[0121] image 3 An example of PRS resource configuration according to an embodiment of the present disclosure is shown. like image 3As shown, the UE is configured with DL PRS transmission from 4 transmission / reception points (Transmission / reception point, TRP). The UE is configured with PRS resource set #1 as a reference resource set for RSTD measurement. The corresponding TRP uses four Tx beams to transmit DL PRS. Therefore, in the configuration of PRS resource set #1, the UE is configured with four PRS resources. The UE is also configured to receive PRS from the other three TRPs. To support this, the UE is configured with three other PRS resource sets: PRS resource set #2, PRS resource set #3 and PRS resource set #4, each PRS resource set corresponds to one TRP. To support beam scanning, each of these PRS resource sets contains 4 PRS resources. The UE may select one (for example, the one with the best signal quality) from the PRS resources #1a, #1b, #1c, and #1d in th...

application example 2

[0123] Figure 4 A method of measuring RSTD according to an embodiment of the present disclosure is shown. like Figure 4 As shown, the method includes the following steps:

[0124] Step 401: The positioning server sends first configuration information to the UE, including configuration information of the first PRS resource set and configuration information of the second PRS resource set.

[0125] Here, the first PRS resource set is configured as a reference set for RSTD measurement.

[0126] Step 402: The serving cell sends downlink PRS based on the first PRS resource set.

[0127] Step 403: The UE measures downlink PRS based on the first PRS resource set.

[0128] Step 404: The neighboring cell sends downlink PRS based on the second PRS resource set.

[0129] Step 405: The UE measures downlink PRS based on the second PRS resource set.

[0130] Step 406: The UE selects the first PRS resource from the first PRS resource set as a reference resource, and measures RSTD base...

application example 3

[0134] For the first PRS resource, the following parameters may be configured for the UE:

[0135] ○ Period and slot offset of PRS transmission

[0136] Here, cycle through PRS 周期 Indicates that the slot offset is passed through the PRS 偏移 express. If the slot number and frame number satisfy Then the UE determines that the frame number of the transmission in the first PRS resource is n f The slot number in the frame of is , where μ is the basic parameter set used for PRS transmission, is the number of slots contained in one frame of the basic parameter set μ.

[0137] ○Frequency domain allocation

[0138] Here, the frequency domain allocation is determined by the index of the starting physical resource block (Physical Resource Block, PRB) and the number of PRBs allocated to the first PRS resource, wherein the index of the starting PRB is determined by k 起始 Indicates that the number of PRBs passes through N PRB express.

[0139] ○ Time domain allocation within a sl...

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Abstract

Provided in an embodiment of the present application are a PRS resource configuration method and device, UE, and network equipment, the method comprising: a user equipment (UE) receiving first configuration information sent by the network equipment, the first configuration information comprising configuration information of a plurality of PRS resource sets, the plurality of PRS resource sets comprising a first PRS resource set and at least one second PRS resource set, the first PRS resource set is configured as a reference set for RSTD measurement, and the second PRS resource set is configured as a reference set for RSTD measurement.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority to U.S. Patent Application No. 62 / 882,421, filed August 2, 2019, the entire contents of which are incorporated herein by reference. technical field [0003] The embodiments of the present application relate to the field of mobile communication technologies, and in particular to a PRS resource configuration method and device, UE, and network equipment. Background technique [0004] When using the Downlink-Time Difference Of Arrival (Downlink-Time Difference Of Arrival, DL-TDOA) positioning method to locate the User Equipment (User Equipment, UE), it needs to be realized by measuring the Reference Signal Time Difference (RSTD). [0005] In the Long Term Evolution (LTE) system, the measurement of RSTD is realized based on the Positioning Reference Signal (PRS). Specifically, the UE can determine the value of RSTD by measuring the PRS delivered by two base stations . Howeve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S5/10
CPCH04L27/26025H04L27/261G01S5/0236G01S5/0036G01S5/10H04B7/0617H04W64/00H04L5/0051H04W72/0446
Inventor 郭力
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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