Method for balancing the ratio EB/I in a service multiplexing CDMA system and telecommunication systems using method

Method according to any of the preceding claims, characterized in that it comprises a phase of exchanging information between a first and a second entities of the system during the establishment of a communication link from the first entity to the second entity, said exchange phase comprising the steps in which:

• the second entity identifies the maximum sending capacity of the first entity,
• the second entity determines, for each processing procedure, a value representative of the rate matching ratio (Yi/Xi) specific to this processing procedure as a function of the maximum sending capacity of the first entity,
• the second entity transmits to the first entity the set of values representative of the rate matching ratios (Yi/Xi) for all the processing procedures,
• the first entity determines the rate matching ratios (Y/X) for all the processing procedures as a function of the values received from the second entity.

Base station of the type comprising means for communicating data conveyed by several transport channels distributed into at least two groups of transport channels, said transport channels of one and the same group requiring to be received with one and the same ratio Eb/I of the average energy of a bit to the average energy of the interference, said means of communication of the sending entity comprising processing modules specific to the groups of transport channels, each processing module comprising rate matching means, said rate matching means ensuring the transformation of an input block of an initial size (Xi) into an output block of a final size (Yi) as a function of a given rate matching ratio (Yi/Xi), a maximum puncture rate (Pq/PBASE) being defined for each processing module, characterized in that it comprises:

• means of determining, for each processing module, a first parameter (Eq) representative of said rate matching ratio (Yi/Xi) and a second parameter (Pq) representative of the maximum puncture rate (Pq/PBASE) specific to said processing module;
• means of transmitting at least one of said first (Eq) and second (Pq) parameters;
• and
• means of calculating, for each processing module, the final size (Yi) of the block at the output of said rate matching means as a function of the initial size (Xi) of the input block on the basis of a criterion, said criterion being dependent on at least one of said first and second determined parameters (Eq, Pq).

Mobile station of the type comprising means for communicating data conveyed by several transport channels distributed into at least two groups of transport channels, said transport channels of one and the same group requiring to be received with one and the same ratio Eb/I of the average energy of a bit to the average energy of the interference, said means of communication of the sending entity comprising processing modules specific to the groups of transport channels, each processing module comprising rate matching means, said rate matching means ensuring the transformation of an input block of an initial size (Xi) into an output block of a final size (Yi) as a function of a given rate matching ratio (Yi/Xi), a maximum puncture rate (Pq/PBASE) being defined for each processing module, characterized in that it comprises:

• means of determining, for each processing module, a first parameter (Eq) representative of said rate matching ratio (Yi/Xi) and a second parameter (Pq) representative of the maximum puncture rate (Pq/PBASE) specific to said processing module;
• means of transmitting at least one of said first (Eq) and second (Pq) parameters;
• and
• means of calculating, for each processing module, the final size (Yi) of the block at the output of said rate matching means as a function of the initial size (Xi) of the input block on the basis of a criterion, said criterion being dependent on at least one of said first and second determined parameters (Eq, Pq).