Method and device for transmitting control information in communication network

A technology for controlling information and communication systems, applied in the direction of preventing/detecting errors through diversity reception, speech analysis, radio transmission systems, etc., can solve the problem of scarcity of mobile wireless resources, and achieve the effect of increasing bandwidth usage efficiency and reducing total bandwidth

Inactive Publication Date: 2008-09-03
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, mobile radio resources are scarce and there is a great need to utilize the available resources in an efficient manner

Method used

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  • Method and device for transmitting control information in communication network
  • Method and device for transmitting control information in communication network
  • Method and device for transmitting control information in communication network

Examples

Experimental program
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Embodiment Construction

[0032] FIG. 1 schematically shows a mobile radio communication system 100 in which a mobile terminal 105 is shown communicating with a radio base station 110 over a radio link 115 . The geographic area served by a radio base station is called a cell. The radio base stations 110 are also connected to a core network 120, which in turn is connected to other radio base stations (not shown), as well as other communication systems. In the following, the mobile radio communication system 100 will be referred to as the system 100 .

[0033] The radio quality of the radio link 115 changes over time due to, for example, changes in the distance between the mobile terminal 105 and the wireless base station 110, changes in the radio environment caused by, for example, moving vehicles, and the like. In order to efficiently utilize the available radio resources, changes in radio link quality are preferably taken into account when determining the characteristics of radio transmissions on the...

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Abstract

The invention relates to a method of sending control information from a first node to a second node in a communications system providing a plurality of resource units for the transmission of data. The control information is sent by use of a code book comprising at least one code word identifying control information relating to data transmission over a resource unit. The code book is dynamically updated by means of repeatedly transmitting an updated version of code book information from the first node to the second node. The invention also relates to a first communications node comprising means for transmitting control information to a second node. The means for transmitting control information is adapted to transmitting the control information by use of a code book; and to repeatedly transmitting an updated version of code book information in order to achieve that the code book is dynamic.

Description

technical field [0001] The present invention relates generally to the field of data communication, and in particular to the field of sending control information between two nodes in a communication network. Background technique [0002] Mobile radio communication services have become very popular over the past few decades. However, mobile radio resources are scarce and there is a great need to utilize the available resources in an efficient manner. [0003] One way to increase the efficiency of radio resource utilization is to reduce the amount of control information signaled between the radio base station and the mobile station. As the radio resources used to transmit control information decrease, the amount of radio resources available to transmit payloads increases. [0004] In 3GPP technical specification 25.213, section 4.6.2.3, a method of assigning a plurality of spreading codes to a mobile station is disclosed. According to this specification, 15 different spreadi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/08G10L19/12G11B20/10H04B7/00H04L1/06
Inventor N·威伯格P·弗伦杰A·富卢斯卡S·帕克瓦尔
Owner TELEFON AB LM ERICSSON (PUBL)
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