Radio communication apparatus

Abstract

A base unit of a radio communication apparatus of the present invention includes a controller that discriminates whether or not company identifying information transmitted from a cordless handset is specific information in connecting a line in a Bluetooth (BT) communication mode, performs communication in another radio communication standard (company's own mode) on determining that the company identifying information is the specific information, and performs the communication in a BT standard on determining that the company identifying information is not the specific information, and a registering unit for registering an ID peculiar to the apparatus. This simple structure allows long-distance communication at higher sound quality with the other apparatus capable of performing CDL communication in the company's own mode using an error handling function, and sound communication at usual sound quality in a BT data format allowing short-distance communication even when the company identifying information is not the specific information.

1 . A radio communication apparatus for performing at least one of transmission and reception in a plurality of radio communication standards with a cordless handset, the radio communication apparatus comprising:
 a radio unit configured to transmit and receive signals in a plurality of data formats; and   a controller configured to register an identifying information of the cordless handset received from the cordless handset and discriminate whether the identifying information transmitted from the cordless handset is a specific information or not,   
       wherein 
       on receiving a connection request from the cordless handset in a first radio communication standard, 
       the controller communicates with the cordless handset in the first radio communication standard when the identifying information is not the specific information, and 
       the controller switches the first radio communication standard to a second radio communication standard which is different from the first radio communication standard, selects one of (A) a first data format not for performing error correction but for performing error detection of Payload and (B) a second data format for performing the error detection and the error correction of the Payload and communicates with the cordless handset, when the identifying information is the specific information. 
     
     
         2 . The radio communication apparatus according to  claim 1 , wherein said controller firstly performs a synchronization process in the first radio communication standard. 
     
     
         3 . The radio communication apparatus according to  claim 1 , wherein, in the first data format, data length of the Payload equals to that of Payload in the first radio communication standard and a slot interval is twice as long as that in the first radio communication standard. 
     
     
         4 . The radio communication apparatus according to  claim 1 , wherein, in the second data format, data length of the Payload is a half of that of the Payload in the first radio communication standard and a slot interval is the same as that in the first radio communication standard. 
     
     
         5 . The radio communication apparatus according to  claim 1 , wherein said controller selects one of a plurality of channel options in the second radio communication standard to set a transmission power higher than that in the communication in the first radio communication standard. 
     
     
         6 . The radio communication apparatus according to  claim 1 , wherein the first radio communication standard is a Bluetooth data format. 
     
     
         7 . The radio communication apparatus according to  claim 1 , wherein said radio communication apparatus performs at least one of transmission and reception of apparatus peculiar ID from the cordless handset, and said controller discriminates whether a predetermined part of the peculiar ID includes a predetermined code, discriminates whether a specific communication function is supported, and performs a process in response to discrimination results. 
     
     
         8 . The radio communication apparatus according to  claim 7 , wherein the specific communication function is a fast data communication function of 1 Mbps to 10 Mbps. 
     
     
         9 . The radio communication apparatus according to  claim 7 , wherein said controller comprises:
 a recognizing unit configured to recognize the peculiar ID of the counter radio apparatus;   a determining unit configured to determine whether the predetermined part includes the predetermined code and whether the cordless handset supports the specific function;   and a storing unit configured to store the peculiar ID and the specific function when the peculiar ID is the specific ID and the cordless handset supports the specific function.   
     
     
         10 . The radio communication apparatus according to  claim 1 , further comprising a registering unit configured to register the company identifying information transmitted from the cordless handset, wherein said controller, on receiving the connection request from the cordless handset in communication of a first radio communication standard, discriminates whether the transmitted company identifying information is the specific information based on the information registered by said registering unit. 
     
     
         11 . The radio communication apparatus according to  claim 10 , wherein said registering unit registers version information of the cordless handset in relation to the company identifying information of the cordless handset, and said controller performs communication in the second radio communication standard and selects an option in response to the version information registered together with the company identifying information when the transmitted company identifying information is the specific information. 
     
     
         12 . The radio communication apparatus according to  claim 1 , further comprising a burst received-data generator configured to output radio quality data by processing a received signal, wherein said controller switches at least one of antenna diversity and reception gain based on the radio quality data in the communication in the second radio communication standard. 
     
     
         13 . The radio communication apparatus according to  claim 12 , wherein the radio quality data indicates received signal quality and received electric field strength, and further includes an Eye diagram of a received pulse generated during receiving Preamble in the communication in the second radio communication standard. 
     
     
         14 . The radio communication apparatus according to  claim 12 , wherein said radio communication apparatus, on discriminating that the other terminal is a company's own product based on information communicated in connection in the first radio communication standard, switches the standard to the second radio communication standard both on a transmission side and a reception side, and determines the radio quality data indicating quality of a received pulse and received electric field strength by adding a bit number of Preamble in the communication in the second radio communication standard.