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

• US 9,584,257 B2
• Filed: 09/08/2014
• Issued: 02/28/2017
• Est. Priority Date: 04/21/1999
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Belaiche, Vincent
• Primary Examiner(s): NGUYEN, STEVEN H D
• Application Number:
  US14/480,134
• Publication Number:
  US 20140376572A1
• Time in Patent Office: 904 Days
• Field of Search: None
• US Class Current: 1/1
• 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

A communication apparatus for communicating data conveyed by a plurality of transport channels, the data of the transport channels being multiplexed into at least one multiplexing frame, includes a processing unit. The processing unit transforms an input data block of an initial size into an output data block of a final size in accordance with a rate matching ratio of the final size to the initial size, transmits information on a maximum payload of the at least one multiplexing frame the communication apparatus can send, receives a first parameter relative to the rate matching ratio, and calculates the final size, according to the initial size of the input data block, the first parameter, a second parameter and the maximum payload of the at least one multiplexing frame. The second parameter is representative of a maximum puncture rate and is a predefined parameter for calculating the final size.

Claims

1. A communication apparatus configured to execute a phase of communicating data conveyed by a plurality of transport channels over a radio with another communication apparatus,

the phase of communicating data including

a rate matching process executing a transformation of a plurality of input data blocks of initial sizes into a plurality of output data blocks of final sizes, and

a multiplexing process executing a multiplexing of the plurality of output data blocks of final sizes into at least one multiplexing frame, data of the plurality of output data blocks of final sizes being conveyed by the plurality of transport channels and being processed by the rate matching process, the plurality of input data blocks being blocks of data conveyed by

the plurality of transport channels,

the communication apparatus comprising:

a receiver to receive, from the another communication apparatus, first parameters,

each of the first parameters being relative to a rate matching ratio for a corresponding one of the plurality of transport channels, and being set according to a Quality of Service required for the plurality of transport channels; and

a calculator to execute a calculation of the final sizes of the output data blocks based on the initial sizes of the input data blocks, the first parameter, a maximum payload for the multiplexing frame, and a second parameter being a predefined non-dimensional parameter corresponding to a maximum percentage of bits to be punctured,

a processing circuitry to execute the transformation of the input blocks according to the final sizes of the output data blocks calculated by the calculator, and to execute the multiplexing of the output blocks of the calculated final sizes, and

a transmitter to transmit, to the another communication apparatus, data of the output data blocks of the calculated final sizes multiplexed by the multiplexing,

the calculator

selects an available maximum payload, for the at least one multiplexing frame, from among a set of possible maximum payloads based on the set of possible maximum payloads, initial sizes of the input data blocks, the first parameter and the second parameter,

calculates a size of aggregate of the output data blocks of final sizes according to a following formula

3. The communication apparatus according to the claim 1, wherein

the processing circuitry executes the transformation of the input blocks by puncturing or repeating at least one bit of the input data blocks according to the final sizes of the output data blocks calculated by the calculator.

2. A communication apparatus configured to execute a phase of communicating data conveyed by a plurality of transport channels over a radio with another communication apparatus,

the phase of communicating data including

a rate matching process executing a transformation of a plurality of input data blocks of initial sizes into a plurality of output data blocks of final sizes, and

a multiplexing process executing a multiplexing of the plurality of output data blocks of final sizes into at least one multiplexing frame, data of the plurality of output data blocks of final sizes being conveyed by the plurality of transport channels and being processed by the rate matching process, the plurality of input data blocks being blocks of data conveyed by

the plurality of transport channels,

the communication apparatus comprising:

a receiver to receive, from the another communication apparatus, first parameters,

each of the first parameters being relative to a rate matching ratio for a corresponding one of the plurality of transport channels, and being set according to a Quality of Service required for the plurality of transport channels; and

a calculator to execute a calculation of the final sizes of the output data blocks based on the initial sizes of the input data blocks, the first parameter, a maximum payload for the multiplexing frame, and a second parameter being a predefined non-dimensional parameter corresponding to a maximum percentage of bits to be punctured,

a processing circuitry to execute the transformation of the input blocks according to the final sizes of the output data blocks calculated by the calculator, and to execute the multiplexing of the output blocks of the calculated final sizes, and

a transmitter to transmit, to the another communication apparatus, data of the output data blocks of the calculated final sizes multiplexed by the multiplexing,

the calculator

calculates the maximum payload based on the initial sizes of the input data blocks, the first parameter and the second parameter,

calculates a size of aggregate of the output data blocks of final sizes according to a following formula