Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-hop wireless relay communication system and download data transmission method and device

A downlink data and database technology, applied in the field of communication, can solve problems such as the inability to realize multi-hop data transmission, and achieve the effects of increasing link reliability, saving overhead, and increasing throughput

Inactive Publication Date: 2008-09-17
HUAWEI TECH CO LTD
View PDF0 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In view of this, the purpose of the present invention is to provide a multi-hop wireless relay communication system and its downlink data transmission method and device, to solve the problem that multi-hop data transmission cannot be realized in the multi-hop wireless relay communication system in the prior art

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
  • Multi-hop wireless relay communication system and download data transmission method and device
  • Multi-hop wireless relay communication system and download data transmission method and device
  • Multi-hop wireless relay communication system and download data transmission method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] In the embodiment of the present invention, a routing database is set in the base station and the relay station, and the routing database of the base station stores the corresponding relationship between the service flow connection identifier, the path identifier and the next hop identifier. The routing database of the relay station stores the corresponding relationship between the path identifier and the next hop identifier. In the embodiment of the present invention, the base station determines the path identifier and the next hop identifier corresponding to the service flow connection identifier from its own routing database according to the service flow connection identifier in the downlink MPDU header, and sends the The downlink MPDU and the path identifier are sent to the next-hop node device; the relay station receiving the downlink MPDU and the path identifier uses the path identifier to find the next hop corresponding to the path identifier from its own routing ...

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 invention discloses a descending data transmission method which is applied in a multi-hop wireless relay communication system. The method comprises the following procedures: respectively arranging a routing data base in a base station and each relay station, wherein the routing data base is stored with a path identification, an identification of the next hop relay station and a corresponding relationship of a QoS parameter, and the routing data base of the base station also comprises a corresponding relationship between a connecting identification and the path identification of the user terminal; searching the path identification in the routing data base by a node apparatus; and if the routing data base is provided with the path identification, obtaining an identification of next hop relay station corresponding with the path identification by the node apparatus according to the corresponding relationship, and then transmitting the descending data block to the obtained next hop relay station till the user terminal. The invention can realize the data transmission of the multi-hop wireless relay communication system without the protocol structure of the existing UE and core network. The invention also discloses a multi-hop wireless relay communication system, and a base station and a relay station which are applied in the system.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a multi-hop wireless relay communication system and its downlink data transmission method and device. Background technique [0002] In a wireless communication system, due to path attenuation of electromagnetic waves or building occlusion, some places become areas with low wireless communication signal strength, and the communication quality of mobile user terminals located in these areas will become very poor. As people's demand for broadband wireless communication increases day by day, the demand for wireless bandwidth becomes larger and larger, so higher and higher carrier frequencies are used in new protocols and systems. However, since the attenuation of radio waves increases with the increase of frequency, high carrier frequencies must face the problem of high attenuation, which further limits the coverage of base stations. [0003] In order to solve the cov...

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): H04B7/14H04L12/56H04L29/06H04L45/24
Inventor 李江尚政
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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