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Method for communication of information and appts. employing method

An information unit, energy level technology, applied in wireless communication, communication between multiple stations, transmission control/equalization, etc., can solve problems such as interference from other users

Inactive Publication Date: 2006-12-13
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases this may mean less interference to other users

Method used

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  • Method for communication of information and appts. employing method
  • Method for communication of information and appts. employing method
  • Method for communication of information and appts. employing method

Examples

Experimental program
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Embodiment Construction

[0074]see figure 1 , a communication system 1 in the form of a cellular mobile radiotelephone system comprising a switching center 10 which is connected to the public switched telephone network (PSTN) and other data networks - if required. The switching center is typically one of many switching centers and a number of base stations 20 are connected to each switching center. The main function of the base station 20 is to establish a radio link 30 with a terminal 40 such as a mobile telephone (or in the case of UMTS so-called User Equipment (UE)) and thus allow communication between the mobile terminal 40 and the rest of the system. communication. Each base station 20 is typically capable of supporting a plurality of such links 30 and thus a plurality of mobile terminals 40 . Although the base station 20 and the switching center 10 are shown as separate components, this is for illustration purposes only and various functions may be performed by the switching center and / or the ...

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PUM

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Abstract

A method of transferring information in units over a wireless digital communications link between a transmitting station and a receiving station comprising the steps of: transmitting first information units at a first energy level; monitoring if correct reception of the transmitted units occurred; and transmitting second information units associated with the first information units, for which first information units the monitoring did not indicate correct reception occurred, at second energy levels, the second information units allowing the content of the first information units to be established, wherein at least one of the associated second information units is transmitted at an energy level which is selected at least partly so as to minimise the total transmitted energy when averaged over a series of first information unit transmissions with respective second information unit transmissions. At least one of the second information units may be transmitted with an energy level below the energy level used in transmission of the first information units. Second information units may be transmitted with a redundancy content which is selected to at least partly minimize the total redundant data content when averaged over a series of first information unit transmissions with at least one of the respective second information unit transmissions.

Description

technical field [0001] The present invention relates to digital communication systems and more particularly to the exchange of information over wireless digital communication links of different qualities. In wireless links such as those found in cellular mobile radiotelephone systems between mobile telephones and base stations, large variations in quality are typically observed compared to wired links. The invention relates particularly, but not exclusively, to Code Division Multiple Access (CDMA) systems used in so-called third generation mobile telecommunication systems, such as the Universal Mobile Telecommunications System (UMTS). Background technique [0002] Communication systems including mobile telecommunication systems and networks have developed the use of digital technologies. These networks require wireless radio communication links to be established between a mobile terminal and a base station (or fixed terminal). Second and third generation mobile phone syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04J1/16H04B1/69H04B7/26H04J13/00
CPCH04W52/343H04L1/0001H04L1/1867H04W52/346
Inventor T·J·穆斯利
Owner KONINK PHILIPS ELECTRONICS NV