COURS GMSK PDF

Dataxe An object of the present invention is thus a method for evaluating the quality of a radio link in a mobile radio system, said method being essentially characterized in that said quality is estimated from the net flow transmitted over said link. EP Ref country code: System for transmitting high-rate value-added services in terrestrial broadcasting. According to another feature, the transmitted blocks or radio blocks, which may include one or more blocks or data blocks, depending on the modulation scheme used, the ratio between the net rate and the raw bit rate is obtained by calculating: Method and apparatus for scrambling information bits on a channel in a communications system. In addition, the following radio criterion the invention has been mainly described in the case where the re-transmission technique is used. There was a problem loading more pages. According to another feature, said link is a downlink.

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Dataxe An object of the present invention is thus a method for evaluating the quality of a radio link in a mobile radio system, said method being essentially characterized in that said quality is estimated from the net flow transmitted over said link. EP Ref country code: System for transmitting high-rate value-added services in terrestrial broadcasting. According to another feature, the transmitted blocks or radio blocks, which may include one or more blocks or data blocks, depending on the modulation scheme used, the ratio between the net rate and the raw bit rate is obtained by calculating: Method and apparatus for scrambling information bits on a channel in a communications system.

In addition, the following radio criterion the invention has been mainly described in the case where the re-transmission technique is used. There was a problem loading more pages. According to another feature, said link is a downlink. Method for improving the performance characteristics of a mobile radio communication system using a power control algorithm. The radio criterion consisting of BLER may be used otherwise. Mobile station according to claim 17, characterized in that said link is an uplink.

Net R net debit however, may not be the most appropriate criterion for R net depends not only on the radio conditions but also the allocated radio resources for radio conditions data, plus the allocated radio resources, the greater net Bmsk is high. Another object of the present invention is a mobile station, said mobile station being essentially characterized in that it comprises means for assessing the quality of a radio link, from the net flow transmitted over said link.

BLER is the rate of data blocks received incorrectly. According to another feature, the number of bits of blocks transmitted being a function of the modulation scheme used, the raw data rate is determined for a given modulation scheme corresponding to said modulation reference, regardless of the modulation scheme used. SE Free format text: MC Free format text: AT Ref legal event code: Various modulation techniques are known, characterized by the spectral efficiency, that is to say their ability to transmit a higher or lower number of bits per symbol, for the same allocated frequency band.

GR Free format text: Estimation of radio channel bit error rate in a digital radio telecommunication network. The method and base station system for voice transmission via a radio interface in a digital radio communication system. Another treatment consists of modulation, to obtain a carrier analog signal information to be transmitted. However, high spectral efficiency requires modulatuon radio conditions, otherwise the quality of service is degraded. A need therefore exists for a quality indicator that would include avoiding the various aforementioned drawbacks, especially that would be relevant for most systems, while being accurate and relatively simple to calculate.

Block error rate estimate reporting for target signal to interference ratio adjustment. Other objects and features of the present invention will become apparent on reading the following description of exemplary embodiments, taken in conjunction with the appended figure for schematically illustrating a radio link whose quality is evaluated using a method according courx the invention.

In particular, protection against transmission errors is obtained by means of coding such as a particular error correcting coding for introducing redundancy into the information transmitted.

Several GAR can be distributed over the same PDCHs, which allows to share a single physical channel between multiple mobile stations and thus optimizing the use of radio resources in the case of packet data transmission. For example, the transmitter may be in a mobile station and the receiver 2 in the network. Multi-media broadcast and multicast service MBMS in a wireless communications system.

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COURS GMSK PDF

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Kagajind Publications — Christophe LAOT In the example illustrated, the means 7 are provided in the receiver, but according to another example they could be provided in the transmitter. Several GAR can be distributed over the same PDCHs, which allows to share a single physical mosulation between multiple mobile stations and thus optimizing the use of radio resources in the case of packet data transmission. A method according to claim 1, characterized in that said quality is estimated from the relative net flow, that is to say the ratio between the net rate and gross throughput. The receiver 2 comprises, in the example illustrated: In systems having a plurality of possible modulation schemes, another possibility is to consider a given modulation scheme corresponding to a given modulation called reference to the raw bit rate, that is to say replacing N i c N c which is the number of bits in a block using the reference modulation e. However, high spectral efficiency requires good radio conditions, otherwise the quality of service is degraded. A serious illness deprive himd of the ability to move about.

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