Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Random access method and device

A technology of random access and random access preamble, which is applied in the direction of transmission path separation device, transmission path sub-channel allocation, digital transmission system, etc. Access capacity and other issues

Active Publication Date: 2020-12-15
HUAWEI TECH CO LTD
View PDF5 Cites 3 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 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
  • Random access method and device
  • Random access method and device
  • Random access method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. The specific operation methods in the method embodiments can also be applied to the device embodiments or system embodiments. Wherein, in the description of the present application, unless otherwise specified, "plurality" means two or more.

[0047] like figure 1 As shown in , it is a schematic diagram of a possible network architecture applicable to this application, including network devices and at least one terminal device. 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 is not limited in this embodiment of the present app...

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 invention provides a random access method and device. The method comprises the steps that when the terminal equipment supports positioning, the terminal equipment can adjust the time for sending preambles on RO resources according to the positioning capacity, and when the terminal equipment does not support positioning, the corresponding RO resources can be periodically configured to be large,so that no matter whether the terminal equipment supports positioning, the network equipment can receive the preamble sent on the same RO resource at the same time or in a shorter preamble receivingtime window, and receive the preamble sent on different RO resources at different time or in different smaller time ranges or in different shorter preamble receiving time windows, thereby being beneficial to avoiding the problem of overlapping of random access preamble receiving time windows; the success rate of accessing the terminal equipment to the network equipment is improved while the randomaccess capacity of the whole system is not reduced.

Description

technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a random access method and device. Background technique [0002] During the wireless communication process, the terminal device needs to obtain uplink synchronization with the network device through a random access process for subsequent communication. Before random access, the network device will broadcast 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, where the RO Resources include time domain resources and frequency domain resources, and one RO resource may also be called one RACH resource. [0003] The random access process mainly includes the following steps: [0004] In step 1, the terminal device selects a random access preamble (random access preamble, which may also be referr...

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 Applications(China)
IPC IPC(8): H04W24/02H04W74/08H04L5/00
CPCH04W24/02H04W74/0833H04L5/0048H04W74/002H04L5/0005H04L5/0069H04L5/008
Inventor 许斌李秉肇陈磊王学龙
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com