Method and apparatus for direct communication

A direct communication and direct link technology, applied in the field of communication, can solve problems such as low access efficiency and unfavorable wireless resource utilization efficiency

Active Publication Date: 2020-01-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In some dense user scenarios, the use of direct link technology will significantly improve system throughput, but in existing standards, the STAs in the direct link compete for the channel by themselves, and the access efficiency is low, which is not conducive to improving the utilization of wireless resources. usage efficiency

Method used

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  • Method and apparatus for direct communication
  • Method and apparatus for direct communication
  • Method and apparatus for direct communication

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Embodiment Construction

[0104] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0105] figure 2 It is a flowchart of a method for performing direct communication provided by Embodiment 1 of the present invention. This embodiment is described from the perspective of an AP. Those skilled in the art can understand that an AP may be a network that can provide wireless signal sending and receiving services for wireless terminals ...

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Abstract

Embodiments of the present invention provide a method and device for performing direct-connection communication. By centrally allocating scheduling resources for the direct-connection link, the AP can prevent STAs to be scheduled from competing to use the channel, and improve access efficiency of the STAs to be scheduled. In addition, the AP also allocates the appropriate direct communication transmission power for each STA to be scheduled. When there is a certain distance between different direct links in the geographical location, the direct communication of the STA corresponding to the direct link is controlled. The transmission power of the two direct links makes the wireless signals on the two direct links not overlap each other, so that the frequency resources can be reused in space, and the utilization rate of the wireless resources is improved.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a method and device for performing direct communication. Background technique [0002] Direct communication means that two stations (Station, STA for short) are associated with the same access point (Access Point, AP for short), but when they communicate with each other, the packets are directly sent to each other through the air interface (air interface) instead of After being forwarded by the AP, the channel through which two STAs directly transmit data through the air interface is called a direct link. The direct link can reduce the occupation of channel resources when communicating between two STAs under the same AP, such as figure 1 as shown, figure 1 It is a schematic flow diagram of STA using a direct link and a non-direct link to communicate, figure 1 The solid line in the middle indicates a direct link, and the dotted line indicates a non-direct ...

Claims

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Application Information

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IPC IPC(8): H04L29/06
CPCH04L9/40
Inventor 丁志明乔登宇
Owner HUAWEI TECH CO LTD
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