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Random access method and device

A technology of random access and configuration information, applied in the field of communication, can solve problems such as MsgA collision, base station can not be correctly resolved, etc., to achieve the effect of reducing conflicts, good reception and demodulation, and saving network resources

Active Publication Date: 2019-06-07
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the contention-based 2-step random access process, different UEs may use different preambles (preambles) to initiate random access on the same physical uplink shared channel resource, which will cause MsgA to collide, and the base station may cannot be parsed correctly

Method used

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Examples

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Embodiment Construction

[0077] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0078] In related technologies, the contention-based random access consists of 4 steps, but it is proposed in the industry that the 4 steps can be combined into 2 steps. The user equipment combines the information to be sent in step 1 and step 3 into one message and sends the message as MsgA. The base station combines the information to be sent in step 2 and step 4 into one message, and the mes...

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Abstract

The invention relates to a random access method and device. The method comprises the following steps: generating configuration information related to a random access physical channel, wherein the configuration information comprises corresponding relation information of a preamble and a physical uplink shared channel group; Wherein the physical uplink shared channel group is applied to a first-steprequest message in two-step random access, and one or more preambles correspond to one physical uplink shared channel group; And sending the configuration information to the user equipment.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device related to random access. Background technique [0002] In related technologies, the contention-based random access consists of 4 steps, but it is proposed in the industry that the 4 steps can be combined into 2 steps. The user equipment combines the information to be sent in step 1 and step 3 into one message and sends the message as MsgA. The base station combines the information to be sent in step 2 and step 4 into one message, and the message is MsgB. In the contention-based 2-step random access process, different UEs may use different preambles (preambles) to initiate random access on the same physical uplink shared channel resource, which will cause MsgA to collide, and the base station may could not be parsed correctly. Contents of the invention [0003] Embodiments of the present invention provide a method and device related to rand...

Claims

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Application Information

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IPC IPC(8): H04W74/08H04L5/00
CPCH04L5/0094H04W74/0833H04W74/085H04W72/0446H04W72/0453H04W72/0466H04W74/004H04W74/0841
Inventor 刘洋
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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