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Device and method for device-to-device broadcast communication in wireless network

A technology of broadcast communication and wireless communication network, applied in the directions of wireless communication, wireless communication service, broadcast service distribution, etc., can solve the problem of resource consumption, and achieve the effect of reducing signal interference, improving system performance, and reducing signal interference

Active Publication Date: 2019-03-08
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some more complex distributed schemes, such as perceptual distributed schemes can perform well, but due to the need for information exchange to make their performance comparable to centralized schemes, this will result in resource consumption for additional overhead

Method used

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  • Device and method for device-to-device broadcast communication in wireless network
  • Device and method for device-to-device broadcast communication in wireless network
  • Device and method for device-to-device broadcast communication in wireless network

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] figure 1 A schematic diagram showing device-to-device broadcast communication in a wireless communication network. Generally, a wireless communication network may include multiple user equipments (User Equipment, hereinafter referred to as UE for short). exist figure 1 In , an example of device-to-device broadcast communication is schematically shown by six user equipments UE1, UE2, . . . , UE6. In one embodiment, the wireless communication network is a wireless communication network based on a 3GPP (the3rd Generation Partnership Project, third generation partnership project) protocol. Preferably, the wireless communication network may be an LTE (Long Term Evolution, long term evolution) network. User equipment may be any electronic device that can directly or indirectly communicate with other user equipment and / or base stations in a wireless manne...

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Abstract

The present invention provides a device and method for device-to-device broadcast communication in a wireless communication network. Wherein, the method includes the following steps: selecting a transmission resource; according to the signal strength of other user equipments simultaneously transmitting signals on the transmission resource or on the orthogonal frequency resource of the transmission resource, estimating Broadcast signal interference: determine whether to perform device-to-device broadcast communication on the selected transmission resource according to the estimated signal interference. Compared with the prior art, the present invention does not need a large amount of extra overhead, effectively reduces the signal interference between simultaneously transmitting user equipments, and thus achieves better system performance.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a device and method for broadcasting communication from device to device in a wireless communication network. Background technique [0002] Device-to-device communication is included as a research project in LTE R12 to study the performance and standardization of device-to-device communication in LTE networks. The research project will investigate neighbor discovery and direct communication technologies. Among them, for direct communication technology, device-to-device broadcast communication is the priority to be studied. Device-to-device application scenarios include full network coverage, no network coverage, and partial network coverage. Device-to-device broadcast communication without network coverage is a current research focus. In the no-network-coverage scenario, there are various designs for special features in a network with no central control. The meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/00H04W4/06H04W72/08H04W72/54H04W76/14H04W76/40
CPCH04W72/02H04W76/40H04W76/14
Inventor 徐艳丽刘勇李栋
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD