Wireless network cooperative method and system, and network node

A collaborative node and wireless network technology, applied in the field of communication, can solve problems such as the inability to generate virtual antenna arrays

Active Publication Date: 2013-01-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The inventor found that in the prior art, only two hops of better channels are used to replace one hop of poor channels, which cannot generate a virtual antenna array to achieve MIMO gain

Method used

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  • Wireless network cooperative method and system, and network node
  • Wireless network cooperative method and system, and network node
  • Wireless network cooperative method and system, and network node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] see figure 1 , figure 1 It is a flowchart of a wireless network cooperation method provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the wireless network cooperation method provided by the embodiment of the present invention may include the following steps:

[0042] Step 101: the source node determines at least one cooperating node from a pre-established coordinating table;

[0043] Step 102: The source node sends the data to the at least one coordinating node while sending the data to the target node, so that the at least one coordinating node forwards the data to the target node on a reserved channel.

[0044] Specifically, the source node determining at least one coordinating node from the pre-established coordinating table in step 101 above may include the steps of:

[0045] 1) The source node selects at least one potential cooperative node from a pre-established cooperative table;

[0046] 2) sending a communication request to the t...

Embodiment 2

[0088] see figure 2 , figure 2 It is a schematic flowchart of a wireless network cooperation method provided by Embodiment 2 of the present invention. Such as figure 2 As shown, the wireless network cooperation method may include:

[0089] Step 201: the source node pre-establishes a cooperation table;

[0090]Due to the broadcast characteristics of the wireless channel, the information exchange between potential cooperative nodes around the source node can be intercepted by the source node. Among them, the potential collaborating nodes around the source node are the neighbor nodes of the source node. For example, when a potential coordinating node sends a communication request to a target node (the target node is also an adjacent node of the source node), the communication request will be detected by the source node through the connection channel between it and the potential coordinating node; the target node When the consent request is returned to the potential coordi...

Embodiment 3

[0182] see image 3 , image 3 It is a flow chart of a wireless network cooperation method provided by Embodiment 3 of the present invention. Such as image 3 As shown, the wireless network cooperation method provided in the embodiment of the present invention may include:

[0183] Step 301: The node receives the communication request sent by the source node, and the communication request carries the ranking information of multiple nodes including the node itself;

[0184]Wherein, the present node described in the embodiment of the present invention is an adjacent node of the source node, and also a potential cooperative node of the source node. The sorting information of the multiple nodes may specifically be address sorting information to multiple nodes.

[0185] Wherein, the format of the communication request sent by the source node is the same as that in Table 2 in Embodiment 2, and the embodiment of the present invention will not be repeated here.

[0186] Step 302:...

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Abstract

The invention relates to the technical field of communication, and discloses a wireless network cooperative method, a wireless network cooperative system and a network node. The wireless network cooperative method comprises the following steps that: a source node determines at least one cooperative node; and the source node transmits data to the at least one cooperative node when transmitting thedata to a target node, so that the at least one cooperative node forwards the data to the target node on a reserved channel. By using the technical scheme provided by the embodiment of the invention,a plurality of cooperative nodes can participate in cooperative communication to generate a virtual antenna array so as to reach MIMO gains.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a wireless network cooperation method and system, and a network node. Background technique [0002] In the current wireless network, because the Multiple-Input Multiple-Output (MIMO, Multiple-Input Multiple-Out-put) technology can provide transmission capacity many times higher than that of the traditional Single-Input Single-Output (SISO, Simple InputSimple Output) system, so People are paying more and more attention to it, and the MIMO technology is generally considered to be a key technology of the Next Generation Network (NGN, Next Generation Network). [0003] The MIMO technology will gradually develop into a virtual MIMO technology, and the virtual MIMO technology is also called a virtual antenna array (VAA, Virtual Antenna Array) technology. In order to implement the VAA technology, the concept of Cooperative Communication (CC, Cooperative Communication) is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04L1/00H04L1/16H04W72/12
Inventor 庄宏成罗泽宙李云
Owner HUAWEI TECH CO LTD
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