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Radio resource management in multihop relay networks

A data frame and node technology, applied in wireless communications, radio relay systems, radio transmission systems, etc., can solve the problems of high operating costs and inability to improve signal quality in cell locations and wired backhaul links, and achieve good coverage, The effect of high cell capacity

Inactive Publication Date: 2009-08-12
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Signal quality to these underserved areas often cannot be improved by increasing transmit power or changing antenna configuration
Reducing cell size and deploying more base stations would improve the situation, but this is often not possible due to limited access to traditional cell sites and wired backhaul links and associated high operating costs

Method used

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  • Radio resource management in multihop relay networks
  • Radio resource management in multihop relay networks
  • Radio resource management in multihop relay networks

Examples

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Embodiment Construction

[0015] Embodiments are related to sharing the same frequency spectrum or the same frequency band (channel) as a radio resource between wireless communication devices (wireless devices / nodes) that operate in a single The channels communicate wirelessly with each other. According to an aspect of an embodiment, the wireless communication data frame structure provides digital in-band relay of information between a first device and one or more third devices by relaying a second device. According to an applicable wireless communication network access system (MAC / physical layer system) in accessing a wireless communication network, a wireless resource refers to a wireless communication bandwidth. Bandwidth may include subcarriers / subchannels (if any), symbols, time slots, transmit power, frequency, or a portion thereof, or any combination thereof. In-band refers to a single channel between a first device and a cascaded wireless communication link relaying a second device to one or m...

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Abstract

The embodiments provide transmitting at same time first and relay second node preambles aligning data frames among the first node and the relay second node wirelessly communicating in a channel and transmitting by the first node one or more radio resource control parameters managing radio resources of the wireless communicating in the channel among the aligned first node and the relay second node. A relay resynchronization amble sequence managing synchronizing in the channel the first node frames with the relay second node frames is periodically transmitted to the relay second node.

Description

[0001] References to related applications [0002] This application is related to and claims U.S. Provisional Patent Application No. 60 / 822,861, filed August 18, 2006, by Chenxi Zhu, Wei-Peng Chen, and Jonathan Agre, and entitled "MANAGING A WIRELESS NETWORK" and relates to and claims priority from U.S. Provisional Application Serial No. 60 / 822,791, filed August 18, 2006, and claims U.S. Provisional Application Serial No. 11 / 831,108, filed July 31, 2007 Priority of non-provisional applications. technical field [0003] Embodiments disclosed herein relate to wireless communication device / network frame structures. Background technique [0004] In a wireless cellular network, users at different locations in a cell usually experience different signal qualities, and thus experience different degrees of quality of service (QoS). This is because the user's channel quality depends on a variety of factors, including path loss, shadowing, and interference. Users located at the cell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/14
CPCH04W84/047H04B7/2606
Inventor 朱晨曦陈伟鹏乔纳森·阿格雷
Owner FUJITSU LTD
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