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Device and method for measurement report of honeycomb communication system

A technology for reporting and measuring values, applied in the direction of error prevention/detection, transmission system, wireless communication, etc. using the return channel, which can solve problems such as large signaling overhead, and achieve the effect of reducing bandwidth requirements and reducing overhead services

Inactive Publication Date: 2008-10-29
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, currently used measurement reporting mechanisms result in considerable signaling overhead in the uplink

Method used

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  • Device and method for measurement report of honeycomb communication system
  • Device and method for measurement report of honeycomb communication system
  • Device and method for measurement report of honeycomb communication system

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Embodiment Construction

[0041] figure 1 A cellular network comprising three sites 1 is illustrated in schematic form. Each site has a base station 3 for communicating with user terminals 5 . Typically, a site consists of three sectors, but it can also be omnidirectional or can have more than three sectors (higher order sectorization). A central control node 7, such as a radio network controller (RNC), controls the radio resources in the base stations and is responsible for radio resource management tasks, such as handover, admission control, congestion control, etc. Each base station 3 can communicate with user terminals 5 within its cell on a number of different channels. A control node in the network, ie a base station 3 or a central control node 7 or both, decides which channel to use to communicate with a particular user terminal 5 . These decisions are made based on measurement data reported from each terminal to the base station 3 and / or the control node 7 concerning system parameters measur...

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Abstract

The signalling overhead in cellular communication systems such as OFDMA is reduced by calculating a report value as a function of each measurement value that is to be reported from a user terminal to the network. The report value is preferably based on a maximum value for the parameter measured, and can be represented by fewer bits than the measurement value. The overhead may be further reduced by selecting only the best measurement values for reporting from the user terminal to the network.

Description

technical field [0001] The invention relates to a user terminal for use in a cellular communication system as defined in the preamble of claim 1, a control node for use in a communication cellular system as defined in the preamble of claim 7, and to a control node for use in a communication cellular system as defined in the preamble of claim 12. A method for selecting at least one downlink channel in a cellular communication system as defined in the preamble. Background technique [0002] In cellular communication systems it is desirable to use the available bandwidth as efficiently as possible. This includes choosing the best communication channel for each connection. To achieve this, in many systems each user terminal measures parameters indicative of the downlink signaling quality in available channels and reports the values ​​of these parameters to elements in the network such as access points (base stations) or control node. These parameter values ​​are used when sel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/12
CPCH04L1/0029H04B17/336H04L5/0091H04W24/00H04W24/10H04W88/02H04B17/006
Inventor M·卡兹米胡荣
Owner TELEFON AB LM ERICSSON (PUBL)