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Chain broadcasting method and device

A technology of user terminal and channel state information, which is applied in the field of simulcasting methods and devices, can solve problems such as signal fading and uneven signal coverage, and achieve the effect of increasing the data rate

Active Publication Date: 2013-05-15
HONOR DEVICE CO LTD
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AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a simulcast method and device to solve the problem of uneven signal coverage and dead spots in the wireless local area network due to signal fading caused by various interferences in the office environment in the prior art, and realize the elimination of simulcasting. communication blind spots in overlapping areas and increase the data rate of user terminals

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  • Chain broadcasting method and device

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Embodiment Construction

[0027] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. figure 2 Realize block diagram for simultaneous broadcasting Simulcast (hereinafter referred to as simulcast) system in the wireless local area network of the embodiment of the present invention; figure 2 As shown, the simulcast system includes a wireless controller (AC, hereinafter referred to as AC), multiple AP access points (Access Point access point, hereinafter referred to as AP), and multiple user terminal sta (station station or mobile The user, hereinafter referred to as the user sta), in the wireless network system, the AP and the AC perform time synchronization through the 1588 V2 protocol. If user sta exists in the wireless area covered by AP1, the downlink data rate of user sta set in the WLAN is a certain threshold value. During the communication process between AP1 and user sta, if AP1 finds the downlink...

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Abstract

The invention relates to a chain broadcasting method and a device. The method comprises that: channel state information of a plurality of access points (AP) closing to a user terminal is obtained by wireless controller adaptive control (AC), the AC calculates according to the channel state information, an AP for chain broadcasting is chosen through a manner of calculating and comparing the channel state information, after the AP for chain broadcasting is chosen, destination addresses that belong to the data of the user terminal are respectively sent to the AP for chain broadcasting serving as a chain broadcasting system, the AP for chain broadcasting sends data for the user terminal simultaneously according to the timestamp information so as to improve a data rate of the user terminal.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a simultaneous broadcasting method and device. Background technique [0002] In wireless communication technology, 802.11n-based devices work in unlicensed frequency bands, providing high-speed data transmission with low cost. At present, most enterprises use 802.11n equipment to build a wireless local area network (WLAN) to realize the seamless connection between the wireless network system and the original wired network system; wireless high-speed Internet access and roaming can be realized in the area covered by the wireless network. Users will not be disconnected from the wireless network. [0003] A Single Frequency Network (SFN) is a radio transmission station in multiple different locations that transmits signals at the same frequency to achieve reliable coverage of a certain service area. Multiple APs in the single frequency network use the same frequency t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/20
Inventor 李文俊董明杰周元
Owner HONOR DEVICE CO LTD
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