Method for configuring a telecommunication system
View Patent ↗A method and system for configuring a CDMA telecommunication system having at least one sending entity and at least one receiving entity, each entity configured to transmit data on at least one physical channel (DPDCH) via a transport channel composite (CCTrCH) of multiple transport channels. At least one entity includes a data processing module configured to determine for each transport channel a first parameter (RMi) proportional to a rate matching ratio (RFi) and a second parameter representing a maximum physical bit rate (Ndata) and to transform for each of the transport channels a number of symbols before rate matching (Nk) into a number of symbols after rate matching (Nk+ΔNk), where the number of symbols after rate matching (Nk+ΔNk) is obtained approximately by multiplying the number of symbols before rate matching (Nk) by the rate matching ratio (RFi).
1. A method for a telecommunication system including a plurality of communication devices, said telecommunication system using a Code Division Multiple Access type technology, at least one of said plurality of communication devices transmitting data on at least one physical channel, said at least one physical channel transmitting a transport channel composite and having a maximum physical bit rate, said transport channel composite including data of a plurality of transport channels, each transport channel having at least one transport format, said at least one transport format being predetermined for each transport channel, each of said transport channels being processed by a separate and distinct processing procedure, said method comprising the steps of:
transforming, for each of said transport channels in said telecommunication system, an input number of bits into an output number of bits;
calculating a ratio of said maximum physical rate to a maximum value of rate estimators in said telecommunication system;
calculating a rate matching ratio for each of said transport channels in said telecommunication system by multiplying said ratio obtained in said calculating step by a rate matching parameter for said transport channel, said rate matching parameter controlling said rate matching ratio for said transport channel; and
determining, for each of said transport channels in said telecommunication system, a variation between the output number of bits and the input number of bits, said output number of bits being calculated by multiplying said rate matching ratio by said input number of bits, said determining step being implemented before said transforming step.
2. A communication apparatus for use in a telecommunication system including a plurality of entities and transmitting data on at least one physical channel, said at least one physical channel transmitting a transport channel composite and having a maximum physical bit rate, said transport channel composite including data of a plurality of transport channels, each transport channel having at least one transport format, said at least one transport format being predetermined for each transport channel, each of said transport channels being processed by a separate and distinct processing procedure, at least one of said entities having rate matching means for transforming a number of bits before rate matching into a number of bits after said rate matching, said communication apparatus comprising:
means for receiving a first parameter controlling a rate matching ratio for at least one of said transport channels;
means for calculating a ratio of said maximum physical bit rate to a maximum value of rate estimators;
means for calculating a rate matching ratio of each of said transport channels by multiplying said ratio of said maximum physical bit rate to said maximum value of rate estimators by said first parameter; and
means for determining, for each of said transport channels, a variation between the number of bits after said rate matching and the number of bits before said rate matching, said number of bits after said rate matching being calculated by multiplying said rate matching ratio by said number of bits before said rate matching.
3. A communication apparatus for use in a telecommunication system including a plurality of entities, said telecommunication system using a Code Division Multiple Access type technology, at least one of said entities transmitting data on at least one physical channel, said at least one physical channel transmitting a transport channel composite and having a maximum physical bit rate, said transport channel composite including data of a plurality of transport channels, each transport channel having at least one transport format, said at least one transport format determined for each transport channel, each of said transport channels being processed by a separate and distinct processing procedure, said communication apparatus comprising:
means for transforming, for each of said transport channels, an input number of bits into an output number of bits;
means for calculating a ratio of said maximum physical bit rate to a maximum value of rate estimators;
means for calculating a rate matching ratio of each of said transport channels by multiplying said ratio of said maximum physical bit rate to said maximum value of said rate estimators by a rate matching parameter determined for said transport channel, said rate matching parameter controlling said rate matching ratio for said transport channel; and
means for determining, for each of said transport channels, a variation between the output number of bits and the input number of bits, said output number of bits being calculated by multiplying said rate matching ratio by said input number of bits.
4. A communication method of a communication apparatus used in a telecommunication system, said telecommunication system including a plurality of entities and transmitting data on at least one physical channel, said at least one physical channel transmitting a transport channel composite and having a maximum physical bit rate, said transport channel composite including data of a plurality of transport channels, each transport channel having at least one transport format, said at least one transport format determined for each transport channel, each of said transport channels being processed by a separate and distinct processing procedure, at least one of said entities having rate matching means for transforming a number of bits before rate matching into a number of bits after said rate matching, said method comprising the steps of:
receiving a first parameter controlling a rate matching ratio for at least one of said transport channels in said communication apparatus;
calculating a ratio of said maximum physical bit rate to a maximum value of rate estimators in said communication apparatus;
calculating a rate matching ratio for each of said transport channels in said communication apparatus by multiplying said ratio obtained in said calculating step by said first parameter; and
determining, for each of said transport channels in said telecommunication apparatus, a variation between the number of bits after said rate matching and the number of bits before said rate matching, the number of bits after said rate matching being calculated by multiplying said rate matching ratio by the number of bits before said rate matching.