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

• US 6,545,983 B2
• Filed: 08/16/2001
• Issued: 04/08/2003
• Est. Priority Date: 04/21/1999
• Status: Expired due to Term

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Telecom Europe (Mitsubishi Electric Corporation)
• Inventors: Belaiche, Vincent
• Primary Examiner(s): NGUYEN, STEVEN H D
• Application Number:
  US09/930,469
• Publication Number:
  US 20020027883A1
• Time in Patent Office: 600 Days
• Field of Search: 370/252, 370/335, 370/342, 370/203-210, 714/777-792, 714/796, 714/755, 375/222
• US Class Current: 370/252
• CPC Class Codes: H04J 13/00 Code division multiplex systems for frequency hopping H04B1/713
• CPC Class Codes: H04J 3/22 in which the sources have different rates or codes simultaneous speech and digital data or video transmission H04M11/06; see provisional also H04J3/16
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0067 Rate matching H04L1/0013 and H04L1/08 take precedence
• CPC Class Codes: H04L 1/0068 by puncturing
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 1/0075 Transmission of coding parameters to receiver H04L1/0023 takes precedence
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 5/023 Multiplexing of multicarrier modulation signals multicarrier modulation H04L27/2601

Abstract

The invention relates to a method for configuring a telecommunication system comprising at least one sending entity and one receiving entity between which one and the same link ensures the transmission of several transport channels of different qualities of service. The sending entity performs a rate matching between the various qualities of service, on completion of which the various qualities of service are multiplexed. The matching rate specific to each quality of service is determined on the basis of a first parameter (E_q) representative of the ration Eb/I and of a second parameter (P_q) representative of the maximum puncture rate specific to the quality of service considered.

Claims

1. A method for configuring a telecommunication system comprising a plurality of entities implementing a phase of communicating data conveyed by a plurality of transport channels, wherein said entities comprise at least one sending entity and at least one receiving entity, a phase of communication of said sending entity comprises a plurality of processing procedures specific to said plurality of transport channels, each processing procedure comprises a rate matching step and said rate matching step executes a transformation of an input block of an initial size (Xi) into an output block of a final size (Yi) by at least one of puncturing and repetition, said method further comprising:

a step of determining, by at least one of said plurality of entities as a first entity, a parameter (Pq) representative of a maximum puncture rate of (Pq/PBASE);

a step of transmitting said parameter (Pq) from said first entity to another of said plurality of entities, referred to as a second entity; and

a step of calculating, by said second entity, for each of said processing procedures, said final size (Yi) of said output block obtained by said rate matching step as a function of said initial size (Xi) of said input block on a basis of a criterion, said criterion being dependent on said parameter (Pq) determined by said step of determining.

2. The method for configuring a telecommunication system according to claim 1, wherein said criterion is further dependent on a plurality of predefined parameters (Ei) relative to said transport channels grouped together within a composite of transport channels, each predefined parameter (Ei) being representative of a rate matching ratio of a transport channel comprised within said composite of transport channels.

3. The method for configuring a telecommunication system according to claim 2, wherein said step of calculating further comprises:

a step for calculating a set of available sizes for a multiplexing frame with said parameter (Pq);

a step for selecting one of said set of available sizes as a maximum payload (Njsel) of said multiplexing frame being generated further to an execution of said step for selecting one of said set of available sizes; and

a step for calculating said final size (Yi) as a function of said initial size (Xi), at least one of said predefined parameters (Ei), and said selected maximum payload (Njsel) of said multiplexing frame.

4. The method for configuring a telecommunication system according to claim 2, wherein each of said predefined parameters (Ei) vary in accordance with a quality of service of each of said transport channels comprised within said composite of transport channels.

5. A mobile station configured to communicate data over a plurality of transport channels grouped together within a composite of transport channels comprising:

means for transforming an input block of an initial size (Xi) into an output block of a final size (Yi) by at least one of puncturing and repetition;

means for receiving a parameter (Pq) representative of a maximum puncture rate of (Pq/PBASE); and

means for calculating said final size (Yi) as a function of said initial size (Xi) of said input block on a basis of a criterion, said criterion being dependent on said parameter (Pq).

6. The mobile station according to claim 5, wherein said calculating means calculates said final size (Yi) so that said final size (Yi) varies in accordance with a maximum payload of one and a same multiplexing frame.

7. The mobile station according to claim 5, wherein said criterion is further dependent on a plurality of predefined parameters (Ei) for said composite of transport channels, each of said predefined parameters (Ei) being representative of a rate matching ratio for each of said transport channels comprised within said composite of transport channels.

8. The mobile station according to claim 7, wherein each of said predefined parameters (Ei) vary in accordance with a quality of service of each of said transport channels comprised within said composite of transport channels.

9. The mobile station according to claim 7, wherein said means for calculating further comprises:

means for calculating a set of available sizes for a multiplexing frame with said parameter (Pq);

means for selecting one of said set of available sizes as the maximum payload (Njsel) of said multiplexing frame, said means for selecting one of said set of available sizes generating a selected maximum payload; and

means for calculating said final size (Yi) as a function of said initial size (Xi), at least one of said predefined parameters (Ei), and said maximum payload (Njsel) of said multiplexing frame.