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Method for establishing direct link and method and node for realizing data transmission

A technology of direct link and establishment method, applied in digital transmission system, transmission system, multiple use of transmission path, etc., capable of solving data transmission interference, without considering the impact of infrastructure BSS, and without considering multiple direct links issues of mutual influence

Active Publication Date: 2021-09-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above technique of carrying control information in the header of the physical layer of the HE wireless frame effectively solves the interference problem of data transmission in the infrastructure BSS. However, the existing technology considers the efficiency improvement scheme of the transmission between AP and non-AP STA In this method, the impact of the direct links established between peer sites and the transmission process on the transmission of the infrastructure BSS is not considered, nor is the mutual influence between multiple direct links

Method used

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  • Method for establishing direct link and method and node for realizing data transmission
  • Method for establishing direct link and method and node for realizing data transmission
  • Method for establishing direct link and method and node for realizing data transmission

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no. 3 example

[0175] In the third embodiment, it is assumed that the AP and multiple stations STA1-STA10 form a BSS, and it is assumed that the AP sends a broadcast frame to notify all STAs that the value of the network identifier color is 3. In the first embodiment, it is assumed that STA1~STA3 support direct connection technologies such as TDSL or DSL, etc., and it is assumed that STA1, as the initiator, that is, the first node, establishes tunnel direct links with STA2 and STA3 respectively. In the third embodiment, it is assumed that direct The color value corresponding to the link is negotiated, including:

[0176] STA1 transfers the direct link request frame to STA2 through the transparent transmission of the AP. The direct link request frame carries one or more color values ​​available to STA1. If STA2 agrees to establish a direct link, it will be transparently transferred through the AP. A direct link response frame is sent to STA1, and the direct link response frame carries one or ...

no. 5 example

[0184] In the fifth embodiment, based on the situation of not using a fixed direct-connection identifier in the present invention, such as the negotiation method, before the peer-to-peer site determines the direct-connection identifier, it may also include:

[0185] By checking the wireless frames transmitted in the wireless channel, determine the network identification color value of the basic network architecture used by other surrounding networks or BSS, and determine the network identification color value occupied by other surrounding direct links, so as to try to A value different from these occupied network identifiers is selected as the direct connection identifier of the direct link to be established.

[0186] After the direct link is established, the peer-to-peer site can also change the network identification color value used by the direct link according to changes in the surrounding network environment. Specifically include:

[0187] Detect the wireless frames of o...

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Abstract

This article discloses a method for establishing a direct link and its method and nodes for realizing data transmission, including establishing a direct link between the first node and the second node and determining the establishment according to the preset direct control information determination strategy The direct connection control information corresponding to a good direct link. The method of the present invention optimizes the establishment and transmission process of the direct link by determining the special direct control information used to identify the direct link for the direct link, so that the direct link is well distinguished from the direct link. The link of the basic network architecture is improved, thereby improving network efficiency.

Description

technical field [0001] The present invention relates to but not limited to wireless local area network (WLAN, Wireless Local Area Network) technology, especially a method for establishing a direct link and a method and node for realizing data transmission. Background technique [0002] The basic structure of a wireless local area network (WLAN, Wireless LAN) is an access point station (AP, AccessPoint) and a plurality of non-access point stations (non-AP STA, non-AP Station) associated with the AP. Basic Service Set (BSS, Basic Service Set), such as figure 1 as shown, figure 1 It is a schematic diagram of a basic architecture of a WLAN in the related art. exist figure 1 Under the network structure shown, data is aggregated and distributed at APs, that is, communication generally only occurs between non-AP STAs and APs, and the relationship between APs and non-AP STAs is similar to the relationship between base stations and terminals in a cellular network. figure 1 The AP...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/14
CPCH04L5/0037H04L5/0094H04W76/14H04W76/11H04W84/12H04W16/14H04W72/20H04W36/037H04W76/10H04L5/0055H04W88/10
Inventor 邢卫民吕开颖韩志强
Owner ZTE CORP