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: 2010-10-13
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 This is a flowchart of a wireless network cooperation method provided in 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 collaboration node from a pre-established collaboration table;

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

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

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

[0046] 2) Send a communication request to the target node and...

Embodiment 2

[0088] See figure 2 , figure 2 This is a schematic flow chart of a wireless network cooperation method provided in the second embodiment of the present invention. Such as figure 2 As shown, the wireless network cooperation method may include:

[0089] Step 201: The source node establishes a collaboration table in advance;

[0090] Due to the broadcast characteristics of the wireless channel, the information interaction between potential cooperative nodes around the source node can be intercepted by the source node. Among them, the potential cooperative nodes around the source node are adjacent nodes of the source node. For example, when a potential cooperative node sends a communication request to a target node (the target node is also a neighboring node of the source node), the communication request will be heard by the source node through the connection channel between it and the potential cooperative node; the target node When returning a consent request to the potential co...

Embodiment 3

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

[0183] Step 301: The node receives a communication request sent by the source node, the communication request carrying ordering information of multiple nodes including the current node;

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

[0185] The format of the communication request sent by the source node is the same as Table 2 in the second embodiment, which is not repeated in this embodiment of the present invention.

[0186] Step 302: If participating in the ...

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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 network nodes. Background technique [0002] In the current wireless network, because multiple-input multiple-output (MIMO, Multiple-Input Multiple-Out-put) technology can provide a transmission capacity many times higher than the traditional single-input single-output (SISO, Simple Input Simple Output) system, so People are paying more and more attention, and MIMO technology is generally regarded as a key technology of Next Generation Network (NGN). [0003] MIMO technology will gradually develop into virtual MIMO technology, which is also called Virtual Antenna Array (VAA, Virtual Antenna Array) technology. In order to realize the VAA technology, the concept of Cooperative Communication (CC, Cooperative Communication) is introduced in the wireless network. The ultimate goal of cooperative communication is to make n...

Claims

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Application Information

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Patent Type & Authority Applications(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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