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Method for selecting user stay and relay node of central control wireless relay network

A wireless relay network and relay node technology, applied in the field of wireless communication, can solve problems such as no solution

Active Publication Date: 2007-09-19
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] In addition, how to realize the residency of end users in the multi-hop wireless relay network, how to design the specific communication process and protocol architecture, there is still no clear solution

Method used

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  • Method for selecting user stay and relay node of central control wireless relay network
  • Method for selecting user stay and relay node of central control wireless relay network
  • Method for selecting user stay and relay node of central control wireless relay network

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Embodiment Construction

[0063]Figure 1 is a schematic diagram of the basic network structure. In Figure 1, the target users SS1 and SS2 are outside the coverage area of ​​the base station and are connected to the base station through relay nodes. Their serviceable relay node sets are RS1, RS2, RS3, RS4 and RS4, respectively. RS5, according to the signal strength, it is determined that RS2 is a friendly relay node of SS1, and RS5 is a friendly relay node of SS2. Since target users SS3 and SS4 are within the coverage area of ​​the base station, they are directly connected to the base station.

[0064] Figure 2 is a flow chart of a terminal staying on a wireless multi-hop network. After the user terminal is turned on, it searches for the broadcast signals of the base station and adjacent relay nodes, and selects a friendly relay node according to the signal strength. If the friendly relay node is a base station, After receiving the access request from the terminal, the base station performs authenticati...

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Abstract

The present invention relates to a selection method of a user resident mechanism pf a wireless multi-hop relay network and synergy relay nodes centralizedly controlled by the base station. The present invention provides a user resident mechanism, uses thefriendly relay nodes relay and control the signaling transmission to complete; at the same time provides a relay node selection method of carrying out the centralized control and management to the entire relay node selection process by the base station, which is carried in synergies through potential relay nodes and the target terminal. The identification and selection of the relay node are divided into two steps: the first step is to identify the appropriate relay nodes, to constitute an alternative assembly; and the second step is to select a relay nodes subset to tansmit the carrying business from the alternative assembly according to the multi-optimization objective selection algorithm, and contemporarily completing the business carrying configuration of the relay nodes in the subset based on the business properties, as well as the hollow characteristics. The method not only focuses on a two-hop wireless relay network, but also can extend to the multi-hop wireless relay networks, or even extends to a wireless Mesh network and a wireless sensor network.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a relay node selection method in which a base station centrally controls the user's residency and the selection of a cooperative relay node in a wireless relay network. The method not only focuses on a two-hop wireless relay network , and can be extended to multi-hop wireless relay networks, and even to wireless Mesh networks and wireless sensor networks. Background technique [0002] The traditional cellular mobile communication system adopts the cellular structure, but the fourth-generation (4G) wireless communication system with ultra-high data rate still adopts the traditional cellular structure, and there will be many problems. The main reasons are: first, the transmission rate of the 4G system is higher than that of Third generation (3G) systems are two levels higher. In the case of a given transmit power level, the symbol (bit) energy will decrease linear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04L9/32H04W16/26H04W48/10H04W48/20H04W60/00H04W74/00H04W88/08
Inventor 彭木根袁广翔王文博
Owner COMBA TELECOM SYST CHINA LTD
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