Parallel data transmission processing method and device

A data transmission and parallel processing technology, applied in the field of communication, can solve the problems of WLAN network unable to transmit data in parallel, WLAN unable to establish effective parallel transmission links, etc., to avoid interference and improve network efficiency.

Active Publication Date: 2014-12-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a parallel data transmission processing method and device to at least solve the problem in the related art that due to the characteristics of WLAN itself, an effective parallel transmission link cannot be established, so that the WLAN network cannot directly perform parallel data transmission.

Method used

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  • Parallel data transmission processing method and device
  • Parallel data transmission processing method and device
  • Parallel data transmission processing method and device

Examples

Experimental program
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Embodiment 1

[0088] This implementation is used to illustrate several situations where the frequency range indication information indicates content. Assuming that the operating bandwidth of the network is 160MHz, every 20MHz is a sub-channel, and the sub-channel numbers are recorded as 0, 1, 2, 3, 4, 5, 6, and 7 respectively. The main channel of the BSS is the No. 2 sub-channel. Figure 10 is a schematic diagram of channel division according to a preferred embodiment of the present invention, such as Figure 10 As shown, the channel plan also defines four 40MHz channels and two 80MHz channels, for example, 0 and 1 can form a 40MHz channel, but 1 and 2 cannot form a 40MHz channel.

[0089] The frequency range indication information may be frequency band starting position (or channel starting position) and bandwidth information. For example, the number of bits indicated by the channel start position is 3 bits, and the number of bits indicated by the channel bandwidth is 2 bits. When the va...

Embodiment 2

[0094] An AP and multiple non-AP STAs form a BSS. Among them, the operating bandwidth of BSS is 40MHz, including 20MHz main channel and 20MHz auxiliary channel, but among them, STA1 is a legacy STA that only supports 11a standard, and the maximum supported bandwidth is 20MHz, and STA2 is HEW site, which supports OFDMA transmission and 40MHz bandwidth. The default detection channel of all stations contains at least the main channel.

[0095] Figure 11 is a schematic diagram of setting up parallel transmission according to the second preferred embodiment of the present invention, such as Figure 11 As shown, the AP wants to use OFDMA technology to transmit data to STA1 and STA2 in parallel, then the AP competes to obtain the transmission opportunity TXOP (transmission opportunity), and initiates the parallel transmission establishment process:

[0096] The AP sends an RTS frame to STA1, and STA1 replies with a CTS frame after receiving it; the AP then sends another RTS frame ...

Embodiment 3

[0100] An AP and multiple non-AP STAs form a BSS. Among them, the operating bandwidth of the BSS is 80MHz, including a 20MHz main channel (assumed to be sub-channel 0) and three 20MHz auxiliary channels (sub-channels 1, 2, and 3), but STA1 is a legacy STA that supports the 11n standard and supports The maximum bandwidth of STA2 is 40MHz, and STA2 is an HEW site, supporting OFDMA transmission and 80MHz bandwidth. The default detection channel of all stations contains at least the main channel.

[0101] Figure 12 is a schematic diagram of establishing parallel transmission according to the third preferred embodiment of the present invention, as shown in Figure 12 As shown, the AP wants to use OFDMA technology to transmit data to STA1 and STA2 in parallel, then the AP competes to obtain the transmission opportunity TXOP (transmission opportunity), and initiates the parallel transmission establishment process:

[0102] The AP sends an RTS frame to STA1, and STA1 replies with ...

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Abstract

The invention provides a parallel data transmission processing method and device. The method comprises the following steps: determining node types of a plurality of secondary nodes for carrying out parallel data transmission, wherein the node types comprise second-type secondary nodes for supporting information parallel processing; determining resource negotiation mode of each secondary node resource for negotiating parallel data transmission according to the node types; determining corresponding resources corresponding to the plurality of secondary nodes respectively according to the determined resource negotiation mode; and carrying out parallel data transmission processing on the plurality of secondary nodes according to the corresponding resources, so that the problem that in the prior art, effective parallel transmission link cannot be established due to the characteristics of WLAN itself, so that the WLAN cannot carry out parallel data transmission directly is solved, and the effects of not only being capable of effectively avoiding influence on the parallel data transmission, but also being capable of being compatible with network old and new equipment effectively, and effectively improving network efficiency are realized.

Description

technical field [0001] The present invention relates to the communication field, in particular to a parallel data transmission processing method and device. Background technique [0002] At present, as more and more people use Wireless Local Area Network (WLAN for short) for data communication, the load of WLAN network is also increasing, and the efficiency of WLAN network will decline obviously. Simply increasing the rate cannot solve the problem. To solve this problem, in order to solve the problem of WLAN network efficiency, parallel multi-user data transmission is proposed in related technologies, wherein the parallel multi-user data transmission technology includes Multi-User Multiple Input Multiple Output (Multi-User Multiple Input Multiple Output, referred to as MU-MIMO) technology (spatial domain multiple access), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, referred to as OFDMA) technology (frequency domain multiple a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/16H04W84/12
CPCH04W84/12H04W16/10H04W74/0816H04B7/0452H04W76/15H04W28/26H04W74/08
Inventor 邢卫民李楠田开波姚珂
Owner ZTE CORP
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