Data communication in a cooperative communication network

A data signal and data technology, applied in the field of data communication in cooperative communication networks, can solve problems such as inability to achieve diversity gain, high energy consumption due to hardware complexity, and incorrect estimation and propagation of signals.

Inactive Publication Date: 2013-04-24
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, for high data rates, the hardware complexity and energy consumption on each relay can be considerable
Furthermore, incorrect estimates of the signal sent at the relay propagate to the target, so that diversity gain may not be achieved

Method used

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  • Data communication in a cooperative communication network
  • Data communication in a cooperative communication network
  • Data communication in a cooperative communication network

Examples

Experimental program
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Embodiment Construction

[0033] According to one non-limiting embodiment, one or more exemplary architectures for relay-based cooperative communication that support both diversity gain for better reception quality and multiplexing for capacity enhancement are provided gain. The exemplary structures are flexible such that they can support at least one or both of full diversity gain at one extreme or full multiplexing gain at the other extreme. In one embodiment, a channel coding scheme may be applied in one or more of these exemplary architectures. Reception quality-based adaptive operations combined with channel coding can also be applied in such a way that coding can be interrupted when the reception quality does not meet a certain criterion (ie, a threshold).

[0034] refer to figure 2 , exemplifying an exemplary relay network architecture in which the source and destination pass through a set of N relays (R 1 ,R 2 ,...,R N ) to communicate. Accordingly, each relay belongs to a subgroup compris...

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Abstract

A method for communicating data from a source to a destination using a plurality of relay stations in a wireless communication system is provided. The method comprises grouping the plurality of relay stations into at least one relay station group; receiving in a relay station group a subset of data transmitted from the source; sharing information between relay stations in the relay station group for forwarding to the destination the received subset of data transmitted from the source; determining a forwarding scheme for transmitting the received subset of data; and transmitting the received subset of data to the destination using the forwarding scheme.

Description

technical field [0001] The present invention relates to a method of transmitting reliable and higher rate data delivered through relays in a mobile communication system. Background technique [0002] refer to figure 1 , some mobile communication networks include relay nodes (R) working in a cooperative manner to decode and forward data passed from a source node (S) to a destination node (D). Thus the mobile terminal (S) can connect to the base station (D) either directly or via a relay node (R). If there are no relay nodes around the mobile terminal, the mobile terminal is directly connected to the base station. However, if the mobile terminal is in the vicinity of the relay node and if it is better to use the relay node in terms of a certain measure (eg energy consumption etc.), then the terminal can be made to connect to the base station via the relay node. [0003] In wireless networks, where mobile terminals communicate through relay nodes, the signal-to-noise ratio (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/14
CPCH04L1/0006H04B7/15592H04L1/0668H04L1/0643H04L2001/0097
Inventor 李炳宽金相国李奇东
Owner LG ELECTRONICS INC
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