Method for configuring a telecommunication system
View Patent ↗The invention relates to a method for configuring a telecommunication system comprising at least one sending entity and one receiving entity between which the same link transmits several transport channels with different qualities of service. The sending entity matches the rate between the different coded transport channels with separate qualities of service, and the different coded transport channels are then multiplexed. The matching rate specific to each coded transport channel is determined from at least one first parameter representative of the expected Eb/I ratio and a second parameter representative of the capacity of the physical channel.
1. A communication method of a communication terminal used in a telecommunication system transmitting a transport channel composite having a plurality of transport channels between a base station and the communication terminal via a physical channel, performing rate matching process on data of each of said transport channels to change a transmission rate, and calculating a variation between a number of bits of each of said transport channels after the rate matching process and a number of bits of each of said transport channels before the rate matching process, the variation being used to perform rate matching process, the method comprising:
first receiving step of receiving a first parameter controlling a rate matching ratio of each of said transport channels;
second receiving step of receiving data of which the transmission rate is changed by the rate matching process via said physical channel, said physical channel having a maximum physical rate; and
determining step of calculating a variation between a number of bits of each of said transport channels after the rate matching process and a number of bits of each of said transport channels before the rate matching process, based on first parameter received in the first receiving step and second parameter indicating said maximum physical rate corresponding to said transport channel composite, and third parameter indicating a maximum value of rate estimator corresponding to said transport channel composite.
2. The communication method according to claim 1 , further comprising a step of:
changing a transmission rate on data received in the second receiving step, based on said variation calculated in the determining step.
3. The communication method according to claim 2 , wherein
said step of changing performs the reverse of the rate matching process performed in the base station, based on said variation calculated in the determining step.
4. A communication terminal in a telecommunication system transmitting a transport channel composite having a plurality of transport channels between a base station and the communication terminal via a physical channel, performing rate matching on data of each of said transport channels to change a transmission rate, and calculating a variation between a number of bits of each of said transport channels after the rate matching and a number of bits of each of said transport channels before the rate matching, the variation being used to perform rate matching, the terminal comprising:
first receiving means for receiving first parameter controlling a rate matching ratio of each of said transport channels;
second receiving means for receiving data of which the transmission rate is changed by the rate matching process via said physical channel, said physical channel having a maximum physical rate; and
determining means for calculating a variation between a number of bits of each of said transport channels after the rate matching and a number of bits of each of said transport channels before the rate matching, based on first parameter received in the first receiving means, second parameter indicating said maximum physical rate corresponding to said transport channel composite, and third parameter indicating a maximum value of rate estimator corresponding to said transport channel composite.
5. The communication terminal according to claim 4 , further comprising:
processing means for changing a transmission rate on data received by the second receiving means, based on said variation calculated in the determining means.
6. The communication terminal according to claim 5 , wherein
the processing means performs the reverse of the rate matching process performed in the base station, based on said variation calculated by the determining means.
7. A communication method for a code division multiple access (CDMA) communication system transmitting a transport channel composite having a plurality of transport channels between a base station and a communication terminal via a physical channel and performing rate matching on data of each of said transport channels to change a transmission rate, said physical channel having a maximum physical rate, the method comprising:
determining step of calculating a variation between a number of bits of each of said transport channels after the rate matching and a number of bits of each of said transport channels before the rate matching, based on first parameter relative to a rate matching ratio of each of said transport channels and second parameter indicating said maximum physical rate corresponding to said transport channel composite;
a rate matching step of transforming a number of bits of said transport channel before the rate matching into a number of bits of said transport channel after the rate matching by repeating or puncturing at least some bits of each of said transport channels before the rate matching, based on said variation calculated in the determining step; and
a transmitting step of transmitting the data transformed in the rate matching step via said physical channel.
8. The communication method according to claim 7 , further comprising:
a receiving step of receiving, by said communication terminal, the data transmitted in the transmitting step.
9. The communication method according to claim 8 , further comprising:
a determining step of calculating a variation between a number of bits of each of said transport channels after the rate matching and a number of bits of each of said transport channels before the rate matching, based on the first parameter and the second parameter received in the receiving step.
10. A base station in a telecommunication system transmitting a transport channel composite having a plurality of transport channels between a base station and a communication terminal via a physical channel and performing rate matching on data of each of said transport channels to change a transmission rate, said physical channel having a maximum physical rate, the base station comprising:
determining means for calculating a variation between a number of bits of each of said transport channels after the rate matching and a number of bits of each of said transport channels before the rate matching, based on first parameter relative to a rate matching ratio of each of said transport channels and second parameter indicating said maximum physical rate corresponding to said transport channel composite;
rate matching means for transforming a number of bits of said transport channel before the rate matching into a number of bits of said transport channel after the rate matching by repeating or puncturing at least some bits of each of said transport channels before the rate matching, based on said variation calculated by the determining means; and
transmitting means, in said base station, for transmitting the data transformed by the rate matching means via said physical channel.
11. A communication terminal in a telecommunication system transmitting a transport channel composite having a plurality of transport channels between a base station and the communication terminal via a physical channel, performing rate matching on data of each of said transport channels to change a transmission rate, and calculating a variation between a number of bits of each of said transport channels after the rate matching and a number of bits of each of said transport channels before the rate matching, the variation being used to perform rate matching, the terminal comprising:
first receiving means for receiving a first parameter relative to a rate matching ratio of each of said transport channels;
second receiving means for receiving data of which the transmission rate is changed by the rate matching process via said physical channel, said physical channel having a maximum physical rate; and
determining means for calculating a variation between a number of bits of each of said transport channels after the rate matching and a number of bits of each of said transport channels before the rate matching, based on first parameter received in the first receiving means and second parameter indicating said maximum physical rate corresponding to said transport channel composite.
12. The communication terminal according to claim 11 , further comprising:
processing means for changing a transmission rate on data received by the second receiving means, based on said variation calculated in the determining means.
13. The communication terminal according to claim 12 , wherein
the processing means performs the reverse of the rate matching process performed in the base station, based on said variation calculated by the determining means.