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Information transmission method, device and equipment

A technology of information transmission and network equipment, which is applied in the field of communication and can solve problems such as unsatisfactory and long control plane delay

Active Publication Date: 2020-08-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current Long Term Evolution (LTE) protocol uses a four-step random access process. For the uplink multi-beam (multi-beam) physical random access process in the 5th generation mobile communication system (5G) new air interface (New Radio, NR) Incoming channel (Physical Random Access CHannel, PRACH) transmission has the problem of large control plane delay, which cannot meet the low-latency performance index defined for Ultra-Reliable and Low Latency Communications (URLLC) scenarios

Method used

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  • Information transmission method, device and equipment
  • Information transmission method, device and equipment
  • Information transmission method, device and equipment

Examples

Experimental program
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example 1

[0251] Example 1: A Preamble index is mapped to a PUSCH time-frequency resource and a PUSCH DMRS, that is, a Preamble index is mapped to {PUSCH time-frequency resource, PUSCH DMRS}

[0252] Such as Figure 4 As shown, Preamble#0 is mapped to the combination of {PUSCH#0, DMRS#0}, and Preamble#1 is mapped to the combination of {PUSCH#0, DMRS#1}.

[0253] Such as Figure 5 As shown, Preamble#0 is mapped to the combination of {PUSCH#0, DMRS#0}, and Preamble#1 is mapped to the combination of {PUSCH#1, DMRS#1}.

[0254] Among them, Preamble#0 and Preamble#1 represent the Preamble index values ​​numbered 0 and 1 respectively, PUSCH#0 and PUSCH#1 represent the PUSCH time-frequency resources numbered 0 and 1, and DMRS#0 and DMRS#1 represent the numbers respectively PUSCH DMRS for 0 and 1.

example 2

[0255] Example 2: N1 Preamble indexes to 1 {PUSCH time-frequency resource, PUSCH DMRS}

[0256] It should be noted that in the Rel-15NR protocol, a PRACH time-frequency resource supports 64 Preambleindex, therefore, 1<N1<64, and the value of parameter N1 needs to consider SSB (Synchronization Signal Block, synchronization signal block) to Mapping of PRACH time-frequency resource RO (Random Access Opportunity, RACH Occasion)). When N1 Preamble indexes are mapped to one PUSCH time-frequency resource, it is necessary to further consider the mapping of N1 Preamble indexes to PUSCH DMRS.

[0257] Case 1: If Figure 6 As shown, the Preamble index values ​​(Preamble#0 / 1 / 2 / 3) numbered 0 to 3 are mapped to the PUSCH time-frequency resource (PUSCH#0) numbered 0 at the same time, and the four Preamble indexes (Preamble#0 / 1 / 2 / 3) are respectively mapped to four DMRS (DMRS#0 / 1 / 2 / 3);

[0258] The Preamble index values ​​(Preamble#4 / 5 / 6 / 7) numbered 4 to 7 are simultaneously mapped to the ...

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Abstract

The invention provides an information transmission method, device and equipment, and solves the problem of how to ensure the correctness of a two-step random access process. The method comprises the following steps: sending a message A to network equipment according to a mapping relationship between a preamble parameter and a physical uplink shared channel (PUSCH) parameter in the message A of a two-step random access process, wherein the Preamble parameter comprises a preamble index (Preamble index and a physical random access channel (PRACH) time frequency resource, and the PUSCH parameter comprises a PUSCH time frequency resource and a PUSCH demodulation reference signal (DMRS). According to the invention, the correctness of the two-step random access process can be ensured, so the effect of effectively reducing the control plane processing time delay of uplink multi-beam physical random access channel transmission is achieved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an information transmission method, device and equipment. Background technique [0002] The current Long Term Evolution (LTE) protocol uses a four-step random access process. For the uplink multi-beam (multi-beam) physical random access process in the 5th generation mobile communication system (5G) new air interface (New Radio, NR) PRACH (Physical Random Access CHannel, PRACH) transmission has the problem of large control plane delay, which cannot meet the low-latency performance index defined for Ultra-Reliable and Low Latency Communications (URLLC) scenarios. In order to effectively reduce the processing method of the control plane processing delay, the current Rel-16 of NR has established a WI project for the two-step random access process. [0003] Such as figure 1 As shown, is a schematic diagram of NR two-step random access process. The difference from the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08H04L5/00H04W72/04
CPCH04W74/0833H04L5/0048H04W72/0446H04L5/0051H04W74/004H04W72/1268H04W72/0453H04W56/001H04W72/1263H04W74/0841H04W74/0866
Inventor 任斌
Owner DATANG MOBILE COMM EQUIP CO LTD