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A random access method and device

A technology of random access and random access process, applied in transmission path sub-channel allocation, digital transmission system, signaling allocation, etc.

Active Publication Date: 2021-05-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in a scenario where a terminal device is configured with one PUL and at least one SUL in a certain cell, there is currently no way for a terminal device in the connected state (Connected) to determine the uplink carrier for initiating random access, so as to realize that the terminal device Method of performing random access

Method used

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Embodiment Construction

[0078] In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

[0079] The terms "first" and "second" in the specification and claims of the present application are used to distinguish different objects, not to describe a specific order of objects. For example, the first information and the second information are used to distinguish different data blocks, rather than describing a specific sequence of data blocks.

[0080] In the existing communication system, in order to save the power consumption of the terminal equipment as much as possible,...

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Abstract

The embodiment of the present application discloses a random access method and device, which relate to the field of communication technology, so that a terminal device configured with one PUL and at least one SUL and in a connected state determines the uplink carrier for initiating random access, so as to complete random access. access. The random method is applied to a chip in a terminal device that is in a connected state and configured with at least two uplink carriers or the terminal device. The method includes: receiving first information sent by an access network device, the first information is used to determine at least one uplink carrier with random access resources among at least two uplink carriers; at least one uplink carrier with random access resources determining the uplink carrier for initiating random access; initiating random access on the uplink carrier for initiating random access.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a random access method and device. Background technique [0002] In order to meet the large-capacity and high-speed transmission requirements of the mobile communication system, the 5Generation Mobile Communication Technology (5G) system introduces a high-frequency frequency band greater than 6 gigahertz (GHz) for communication. Generally, the transmission power of the terminal equipment is low. In this way, when the terminal equipment is in the edge area of ​​the cell and uses the high-frequency uplink carrier to send signals to the base station, due to the large transmission loss of the high-frequency signal during transmission and the poor penetrating ability Therefore, the base station may not be able to receive the signal sent by the terminal device, but the terminal device may receive the signal sent by the base station through a hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/00H04W74/08H04L5/00
CPCH04W74/006H04W74/0833H04W28/08H04L5/0053H04L5/00H04W74/00H04W74/08
Inventor 王宇晨于海凤曹振臻王学龙
Owner HUAWEI TECH CO LTD
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