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Apparatus and method for supporting multilink by grouping multihop in cellular network of multihop relay system

A multi-hop relay, cellular network technology, applied in the field of multi-hop relay cellular networks, can solve the problems of short TDD frame length, affecting transmission control protocol throughput, increasing overhead, etc.

Inactive Publication Date: 2007-07-04
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0028] Typically, TDD frame lengths are short considering that feedback delays can severely impact the performance of Transmission Control Protocol (TCP), throughput, Automatic Repeat Request / Hybrid Automatic Repeat Request (ARQ / HARQ), and closed-loop power control
Therefore, the transition gap between adjacent single-hop links in this short frame significantly increases the overhead
Also, dividing a subframe into multiple slots imposes overhead on resource allocation granularity per hop

Method used

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  • Apparatus and method for supporting multilink by grouping multihop in cellular network of multihop relay system
  • Apparatus and method for supporting multilink by grouping multihop in cellular network of multihop relay system
  • Apparatus and method for supporting multilink by grouping multihop in cellular network of multihop relay system

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Embodiment Construction

[0056] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions and configurations will be omitted since they may obscure the subject matter of the present invention.

[0057] The present invention provides a method of configuring a frame by grouping multiple hops in a multi-hop relay cellular network, and a device supporting the method. In particular, in a multi-hop relay cellular network, subframes are configured as two multi-hop groups.

[0058] The following description takes the environment of a Time Division Duplex-Orthogonal Frequency Division Multiplexing (TDD-OFDM) wireless communication system as an example, and it should be understood that the present invention can also be applied to any other multiple access strategy.

[0059] FIG. 6 depicts a subframe structure supporting multi-links by supporting multi-ho...

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Abstract

An apparatus and method for configuring a subframe to support multiple links by grouping multiple hops in a multi-hop relay cellular network are provided. A BS collects information about RSs forming relay links to a destination and groups the relay links according to the collected RS information. The BS allocates different resources to the relay link groups and sends information about the allocated resources to the RSs.

Description

technical field [0001] The present invention generally relates to a multi-hop relay cellular network, and in particular, relates to an apparatus and method for configuring subframes by grouping multi-hops in a multi-hop relay cellular network. Background technique [0002] The most stringent requirement in the deployment of fourth generation (4G) mobile communication systems under study recently is to establish a self-configuring wireless network. A self-configuring wireless network is a wireless network configured to provide mobile communication services in an autonomous or distributed manner without the control of a central system. The 4G mobile communication system installs cells with a very small radius in order to achieve high-speed communication and accommodate a greater number of calls. In this way, it is not feasible to adopt the usual centralized wireless network design. Also, a wireless network should be constructed based on distributed control and actively handl...

Claims

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Application Information

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IPC IPC(8): H04Q7/20H04B7/00H04L12/00H04W72/04
CPCH04W40/22H04W40/32H04W72/0446H04W72/1263H04W84/047H04W84/18
Inventor 李美贤周判谕孙仲济赵在源林亨奎孙泳文李成真姜贤贞洪松男金永镐
Owner SAMSUNG ELECTRONICS CO LTD
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