Radio transmission method and radio transmission device

Abstract

A transmission process of control data is carried out simply and the reliability of transmission of the control data is improved. Data transmission among a plurality of communication stations is performed with a predetermined packet arrangement and transmission of the control data from a control station or a communication station is performed with the same predetermined packet arrangement.

What is claimed is: 
     
       1. A radio transmission method, comprising the steps of:
 transmitting data among a plurality of communication stations with a predetermined packet arrangement;   transmitting control data from one of a communication station of said plurality of communication stations and a control station with said predetermined packet arrangement;   adding one of a predetermined error detecting code and a predetermined error correcting code to said data to be transmitted among said plurality of communication stations with said predetermined packet arrangement; and   adding independently one of an error detecting code and an error correcting code to said control data transmitted with said predetermined packet arrangement.   
     
     
       2. A radio transmission method, comprising the steps of:
 transmitting data added with one of a first error detecting code and a first error correcting code among a plurality of communication stations; and   transmitting control data indicating a transmission control of said data, wherein said control data is independently added with one of a second error detecting code and a second error correcting code.   
     
     
       3. A radio transmission method, comprising the steps of:
 transmitting data among a plurality of communications stations with a predetermined packet arrangement; and   transmitting control data repeatedly from one of a communication station of said plurality of communication stations and a control station a plurality of times with said predetermined packet arrangement;   adding one of an error detecting code and an error correcting code to each of a plurality of units of said control data transmitted said plurality of times;   performing one of an error detecting process and an error correcting process on a reception side, wherein each of said plurality of units of said control data carries out a control process by utilizing said control data with no error.   
     
     
       4. A radio transmission device, comprising:
 a transmission data processing unit for processing data transmitted between said radio transmission device and another said radio transmission device with a predetermined packet arrangement;   a control unit for judging whether control data for an access control is included in a header portion of said predetermined packet arrangement and for performing a corresponding control process; and   one of an error detection processing unit and an error correction processing unit for performing one of a first error detecting process and a first error correcting process by utilizing one of a first predetermined error detecting code and a first predetermined error correcting code, respectively, added to said data with said predetermined packet arrangement and at the same time for performing one of a second error detecting process and a second error correcting process by utilizing one of a second predetermined error detecting code and a second predetermined error correcting code independently added to said control data included in said header portion.   
     
     
       5. A radio transmission device for use in performing radio data transmission between said radio transmission device and another said radio transmission device under a control from a predetermined one of said radio transmission devices, comprising:
 one of an error detection processing unit and an error correction processing unit for performing one of a first error detecting process and a first error correcting process by utilizing one of a first error detecting code and a first error correcting code, respectively, added to data transmitted between said radio transmission device and said another radio transmission device and at the same time for performing one of a second error detecting process and a second error correcting process by error utilizing a second error detecting code and a second error correcting code, respectively, independently added to control date for performing access control.   
     
     
       6. A radio transmission method comprising:
 transmitting a control packet from a communication station or a control station;   transmitting a data packet from the communication station or the control station; and   controlling to arrange each of said control packet and said data packet having a primary Orthogonal Frequency Division Multiplex (OFDM) symbol field as a header of packet, the primary OFDM symbol field having a first error detecting or error correcting field, said data packet further having at least one data field and a second error detecting or error correcting field,   in which a structure of the primary OFDM symbol field of said control packet is the same as that of the primary OFDM symbol field of said data packet,   in which tail bits indicating a termination of the primary OFDM symbol field are arranged after the first error detecting or error correcting field, and   in which said control packet does not include the data field.    
     
     
       7. The method of claim 6, wherein the tail bits are of a tail bit with six bits, and in which a further tail bit with six bits indicating an end of transmission data is arranged lastly.  
     
     
       8. A radio transmission apparatus comprising:
 a transmission device to transmit a control packet and to transmit a data packet,   each of said control packet and said data packet having a primary Orthogonal Frequency Division Multiplex (OFDM) symbol field as a header of packet, the primary OFDM symbol field having a first error detecting or error correcting field, said data packet further having at least one data field and a second error detecting or error correcting field,   in which a structure of the primary OFDM symbol field of said control packet is the same as that of the primary OFDM symbol field of said data packet,   in which tail bits indicating a termination of the primary OFDM symbol field are arranged after the first field for error detecting or error correcting field, and   in which said control packet does not include the data field.    
     
     
       9. The apparatus of claim 8, wherein the tail bits are of a tail bit with six bits, and in which a further tail bit with six bits indicating an end of transmission data is arranged lastly.