Method of supporting multiple codes in a wireless mobile communication system
A method of supporting multiple code types in a wireless mobile communication system is disclosed. More specifically, a mobile station (MS) receives a channel descriptor from a base station (BS), wherein the channel descriptor includes at least one burst profile which includes a code type and an interval usage code. Thereafter, the MS, first, recognizes the code type which includes information on coding scheme to be used by the BS or the MS, and recognizes, second, an interval usage code which is used for classifying all data bursts.
1. A method of supporting multiple code types in a wireless mobile communication system, the method comprising:
receiving by a mobile station (MS) a downlink channel descriptor (DCD) from a base station (BS), wherein the DCD includes at least one downlink burst profile comprising a type of the at least one downlink burst profile, a downlink interval usage code (DIUC) and type/length/value (TLV) encoded information, wherein a value of the type of the at least one downlink burst profile determines whether a code type is included in the at least one downlink burst profile; and
recognizing, by the MS, the code type if the code type is included in the at least one downlink burst profile, wherein the code type indicates a coding scheme to be used by the BS to code a downlink burst associated with the at least one downlink burst profile,
wherein the coding scheme is at least one of Block Turbo Code (BTC), Convolutional Turbo Code (CTC), Zero Tail Convolution Code (ZTTC), and Low Density Parity Code (LDPC),
wherein when the value of the type of the at least one downlink burst profile is set to 1, the at least one downlink burst profile does not include the code type and the downlink burst associated with the at least one downlink burst profile is encoded by a convolutional code,
wherein when the value of the type of the at least one downlink burst profile is set to 153, the at least one downlink burst profile includes the code type for indicating the coding scheme and the downlink burst is encoded by the coding scheme indicated by the code type,
wherein the DIUC for the convolutional code is referred to the at least one downlink burst profile with the value of type set to 1.
2. The method of claim 1 , wherein the TLV encoded information comprises a Forward Error Correction (FEC) code type, a DIUC Mandatory exit threshold and a DIUC Minimum entry threshold.
3. The method of claim 1 , wherein when the type of the at least one downlink burst profile is set to a value of 153, the code type of the at least one downlink burst profile supports code types from multiple code classifications.
4. The method of claim 1 , when the value of the type of the at least one downlink burst profile is set to 153, the at least one downlink burst profile is used in the DCD for the MS only.
5. The method of claim 1 , when the value of the type of the at least one downlink burst profile is set to 153, only coding schemes retained by the MS are selected by the MS.
6. A mobile station for a wireless mobile communication system supporting multiple code types, the mobile station comprising:
a receiver receiving a downlink channel descriptor (DCD) from a base station (BS), wherein the DCD includes at least one downlink burst profile comprising a type of the at least one downlink burst profile, a downlink interval usage code (DIUC) and type/length/value (TLV) encoded information, wherein a value of the type of the at least one downlink burst profile determines whether a code type is included in the at least one downlink burst profile; and
a processor recognizing the code type if the code type is included in the at least one downlink burst profile, wherein the code type indicates a coding scheme to be used by the BS to code a downlink burst associated with the at least one downlink burst profile,
wherein the coding scheme is at least one of Block Turbo Code (BTC), Convolutional Turbo Code (CTC), Zero Tail Convolution Code (ZTTC), and Low Density Parity Code (LDPC),
wherein when the value of the type of the at least one downlink burst profile is set to 1, the at least one downlink burst profile does not include the code type and the downlink burst associated with the at least one downlink burst profile is encoded by a convolutional code,
wherein when the value of the type of the at least one downlink burst profile is set to 153, the at least one downlink burst profile includes the code type for indicating the coding scheme and the downlink burst is encoded by the coding scheme indicated by the code type,
wherein the DIUC for the convolutional code is referred to the at least one downlink burst profile with the value of type set to 1.
7. The mobile station of claim 6 , wherein the TLV encoded information comprises a Forward Error Correction (FEC) code type, a DIUC Mandatory exit threshold and a DIUC Minimum entry threshold.
8. The mobile station of claim 6 , wherein when the type of the at least one downlink burst profile is set to a value of 153, the code type of the at least one downlink burst profile supports code types from multiple code classifications.
9. The mobile station of claim 6 , when the value of the type of the at least one downlink burst profile is set to 153, the at least one downlink burst profile is used in the DCD for the mobile station only.
10. The mobile station of claim 6 , when the value of the type of the at least one downlink burst profile is set to 153, only coding schemes retained by the mobile station are selected by the mobile station.