Supercharge Your Innovation With Domain-Expert AI Agents!

A random access method and device

A technology of random access and random access preamble, applied in the directions of synchronization devices, location-based services, wireless communication, etc., can solve the problem of reducing system random access capacity, unable to distinguish preambleRO resources, unable to calculate RA-RNTI, etc. question

Active Publication Date: 2022-06-28
HUAWEI TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, when the network device receives the preamble at the time domain position of the overlapping part, it cannot distinguish which RO resource the preamble corresponds to, and thus cannot calculate the correct RA-RNTI
If the RO cycle is increased, the random access capacity of the entire system will be reduced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A random access method and device
  • A random access method and device
  • A random access method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The specific operation methods in the method embodiments may also be applied to the apparatus embodiments or the system embodiments. Wherein, in the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0051] like figure 1 As shown, it is a schematic diagram of a possible network architecture applicable to this application, including network equipment and at least one terminal equipment. The network device and the terminal device can work on a new radio (new radio, NR) communication system, and the terminal device can communicate with the network device through the NR communication system. The network device and the terminal device may also work on other communication systems, which are not limite...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present application provides a random access method and device. The method includes: the terminal device acquires the location of the terminal device and the location of the network device; the terminal device determines a time adjustment amount according to the location of the terminal device and the location of the network device; the terminal device determines a time adjustment amount according to the The time adjustment amount and the random access channel RACH resource configured by the network device are used to send a random access preamble. Based on this scheme, if the terminal device supports positioning, the terminal device can determine the time adjustment amount according to the position of the terminal device and the network device, and adjust the time for sending the random access preamble on the RACH resource according to the time adjustment amount, which has It helps to avoid the problem of overlapping receiving time windows of random access preambles, so that the success rate of terminal devices accessing network devices can be improved without reducing the random access capacity of the entire system.

Description

technical field [0001] The present application relates to the field of mobile communication technologies, and in particular, to a method and device for random access. Background technique [0002] In the wireless communication process, the terminal device needs to obtain uplink synchronization with the network device through the random access process for subsequent communication. Before random access, the network device broadcasts a random access channel opportunity (Random Access Channel Occasion, RACH Occasion for short, or RO for short) resources to the terminal device, and the terminal device performs random access according to the RO resource broadcast by the network device. RO resources include time domain resources and frequency domain resources, and one RO resource may also be referred to as one RACH resource. [0003] The random access process mainly includes the following steps: [0004] Step 1, the terminal device selects a random access preamble (random access ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W64/00H04W74/08
CPCH04W74/0833H04W4/029H04L5/0048H04W4/02H04W64/00H04W56/0045H04W72/0446H04W74/002H04W74/0841H04W74/0866H04W72/23
Inventor 许斌李秉肇陈磊王宏
Owner HUAWEI TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com