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Random access resource indication method, random access method, base station, terminal and device

A technology of random access and resource indication, which is applied in the fields of terminals and devices, base stations, random access methods, and random access resource indication, and can solve the problem that base stations cannot allocate non-competitive random access resources at the same time

Active Publication Date: 2019-10-01
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a random access resource indication, random access method, base station, terminal and device to solve the problem in the prior art that the base station cannot simultaneously allocate non-competitive random access resources for different beams or different carriers

Method used

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  • Random access resource indication method, random access method, base station, terminal and device
  • Random access resource indication method, random access method, base station, terminal and device
  • Random access resource indication method, random access method, base station, terminal and device

Examples

Experimental program
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Effect test

example 1

[0181] Example 1: For a scenario where a cell includes one downlink carrier and multiple uplink carriers, RRC signaling triggers random access. The multiple uplink carriers include: an uplink carrier UL and a supplementary uplink carrier SUL.

[0182] Base station side:

[0183] Step 11, the base station configures random access resource configurations on multiple uplink carriers for the terminal through system messages or RRC dedicated signaling. Each uplink carrier has its own independent random access resource configuration, and the random access resource configuration of each uplink carrier corresponds to a random access resource set.

[0184] Step 12, the base station side assigns a non-restricted cell to the terminal through RRC dedicated signaling (for example, a handover command or an SCG (Secondary Cell Group, secondary cell group) addition command, specifically the RRC reconfiguration process, and carries the command through the RRC reconfiguration message). Compet...

example 2

[0193] Example 2: For a scenario where a cell includes one downlink carrier and multiple uplink carriers, a PDCCH command triggers random access (eg arrival of downlink data). The multiple uplink carriers include: an uplink carrier UL and a supplementary uplink carrier SUL.

[0194] Base station side:

[0195] Step 21, the base station configures random access resource configurations on multiple uplink carriers for the terminal through system messages or RRC dedicated signaling. Each uplink carrier has its own independent random access resource configuration, and the random access resource configuration of each uplink carrier corresponds to a random access resource set.

[0196] Step 22: The base station allocates non-contention random access resources for the terminal through the PDCCH command, that is, sends random access resource allocation information to the terminal through the PDCCH command, and the random access resource allocation information carries the resource mapp...

example 3

[0205] Example 3: For a beam selection scenario, RRC signaling triggers random access.

[0206] Base station side:

[0207] Step 31, the base station configures random access resource configurations on multiple beams for the terminal through system messages or RRC dedicated signaling. Specifically, SSB (Synchronization Signal Block) in different downlink directions or CSI-RS (Channel State Information Reference Signal) in different downlink directions or TCI (Transmission Configuration Indication) in different downlink directions are respectively associated with different random Corresponding to access resource configuration. Each beam direction has its own independent random access resource configuration, and the random access resource configuration of each beam direction corresponds to a random access resource set.

[0208] Step 32, the base station side assigns a non-renewable terminal to the terminal through RRC dedicated signaling (for example, a handover command or an ...

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Abstract

The invention provides a random access resource indication method, a random access method, a base station, a terminal and a device. The method comprises the following steps: sending random access resource allocation information comprising a resource mapping indication domain to a terminal, wherein the resource mapping indication domain is used for indicating the position of a special random accessresource allocated to the terminal in at least one random access resource configuration, the random access resource configuration comprises at least one of the following types: random access resourceconfiguration based on a BWP dimension, random access resource configuration based on a beam direction dimension, random access resource configuration based on an uplink carrier dimension and randomaccess resource configuration based on a cell dimension. In the embodiment of the invention, the resource mapping indication domain can indicate the positions of the special random access resources distributed to the terminal in a plurality of random access resource configurations, so that the purpose that the base station can distribute non-competitive random access resources for different beamsor different carriers or different BWPs or different cells at the same time is realized.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a random access resource indication, a random access method, a base station, a terminal and a device. Background technique [0002] The random access of the LTE (Long Term Evolution) system is used for five purposes: initial terminal access; RRC (RadioResource Control, radio resource control) connection re-establishment; handover; downlink data arrival in RRC connection state in asynchronous state; RRC connection state When the uplink data arrives; the positioning when the RRC is connected. The NR (New Radio Interface) system also introduces a system message request (SI request), idle state terminal connection recovery, beam failure recovery (BFR, Beam Failure Recovery) and other purposes. [0003] The random access process is divided into contention random access and non-contention random access. The process is as follows: [0004] The contention random access ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W74/08H04W74/00
CPCH04W72/0453H04W72/046H04W74/0833H04W74/0866H04W74/004H04W74/006H04W72/23
Inventor 谌丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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