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Method for transmission of channel state information

A technology of channel state information and transmission channel, which is applied to adjust channel coding, transmission system, wireless communication, etc.

Active Publication Date: 2009-08-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] It is an object of the present invention to provide a method for transmitting channel state information in a communication system to solve or at least alleviate the above-mentioned problems
[0015] Another object of the present invention is to provide a communication system that solves or at least alleviates the above mentioned problems

Method used

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  • Method for transmission of channel state information
  • Method for transmission of channel state information
  • Method for transmission of channel state information

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Embodiment Construction

[0026] Although applicable to a variety of cellular communication systems, the present invention is described in terms of the Third Generation Partnership Project (3GPP) cellular communication system, currently known as Evolved Universal Terrestrial Radio Access (E-UTRA) or Long Term Evolution (LTE).

[0027] Further, in this specification and claims, the term network entity refers to a wireless access node, such as a wireless base station, or a backbone network node. Smaller femtocells are also included in the term network entity. Mobile user entities such as mobile phones, smartphones or laptops with communication capabilities are not included in the term network entity as used in this description and the appended claims.

[0028] figure 1 An example of a simplified architecture of an E-UTRA system 100 is shown in , which discloses radio base stations 101-103 (either fixed wireless transceivers for duplex communication, or possibly wireless transmitters for downlink mode c...

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Abstract

A method, a communication system and a user entity for communicating channel state information in a communication system are provided. The system includes at least one radio transmitter for providing a communication link to at least one user entity, when in the coverage area of the radio transmitter, wherein the communication system includes a first communication resource for transmitting channel state information to the radio transmitter from the user entity, and a second communication resource for transmitting additional channel state information to the radio transmitter from the user entity. An indication indicating whether the user entity has additional channel state information to be communicated on the second communication resource from the user entity is transmitted in a first message on the first communication resource.

Description

technical field [0001] According to the preamble of claim 1, the invention relates to a method of communicating channel state information in a communication system, in particular a cellular communication system. The invention further relates to a communication system according to the preamble of claim 22 and a user entity according to claim 39 . Background technique [0002] In cellular communications, the downlink capability, i.e. the communication from the base station to a user entity such as a mobile phone, smartphone, or laptop with communication capabilities, is usually enabled over the communication channel from the user entity to the base station (i.e., the uplink channel) It is improved by sending downlink channel state information from the mobile terminal to the base station. In packet-based MIMO systems, the base station typically uses this information to make correct decisions on user scheduling, MIMO settings, modulation and coding choices. [0003] In the 3GG...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/02
CPCH04L1/0027H04W72/1284H04L1/0028H04L1/0003H04B17/0067H04L1/0009H04L1/0026H04B17/24H04W72/542H04W72/21
Inventor 雅普·范·德比克马蒂尔斯·温斯特姆亨里克·奥鲁佛松
Owner HUAWEI TECH CO LTD
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