Method and device for communicating packets

Abstract

Communication packets having a same channel identifier, which are exchanged between a pair of Bluetooth devices within a Bluetooth network are passed to a lower level layer through a connection handle in which their requested quality of service. In the lower level layer, the communication packets are distributed to buffers, each of which corresponds to each type of quality of service set in the connection handle. Alternatively, a service identifier corresponding to the quality of service is given to the communication packets in the lower level layer, and the packets are distributed to a suitable buffer based on the service identifier.

1 . A method for communicating packets in a communication device having a wireless communication interface via a wireless network to another communication device, comprising: 
 providing a plurality of buffers in the communication device, each buffer corresponding to a type of quality of communication service requested by a communication packet which is exchanged form upper layer;    setting a logical channel for the communication packets to be exchanged;    giving a connection identifier for the logical channel, said connection identifier being associated with an information indicating the type of quality of communication service;    receiving said communication packets to be exchanged via said logical channel and distributing said communication packets to one of a plurality of buffers depending upon said connection identifier and said information.    
     
     
         2 . A method for communicating packets according to  claim 1 , further comprising transmitting said communication packets in one of a plurality of buffers to the another communication device corresponding to said type of quality of communication service.  
     
     
         3 . (canceled)  
     
     
         4 . (canceled)  
     
     
         5 . A communication device having a wireless communication interface via a wireless network to another communication device, comprising: 
 an application processing portion for determining a parameter corresponding to a type of quality of communication service requested by an application used in said communication device for a communication packet which is transmitted by said communication device;    a plurality of buffers, whose number corresponds to a number of types of said parameter;    a logical link control portion for preparing a logical channel in which information regarding said parameter determined for said communication packet and for setting said logical channel sequentially in said communication packet;    a communication control interface portion for giving a connection identifier to said set logical channel and for setting information regarding said parameter in said connection identifier; and    a determination portion for distributing to one corresponding buffer among said plurality of buffers said communication packet passed from said logical link control portion via said communication control interface.    
     
     
         6 . A communication device according to  claim 5  wherein said interface portion gives one connection identifier to each logical channel and sets information regarding said parameter in said connection identifier.  
     
     
         7 . A communication device according to  claim 5  wherein said interface portion gives a connection identifier for each type of said information regarding said parameter to said logical channel and sets said information regarding said parameter in said connection identifier.  
     
     
         8 . A communication device according to  claim 5 , further comprising a packet processing portion for writing said information regarding said parameter in a predetermined area in said communication packet passed from said logical link control portion through said communication control interface, 
 wherein said determination portion distributes said communication packet to a suitable buffer among said plurality of buffers based on said information regarding said parameter written in said predetermined area.    
     
     
         9 . A communication device according to  claim 5 , wherein said packet processing portion writes a value 00 in a first area of a payload header of said communication packet and writes a service definition indicating said quality of communication service in a second area; and 
 said determination portion distributes said communication packet to said suitable buffer based on said service definition if the value of said first area is 00.    
     
     
         10 . A communication device according to  claim 5 , wherein said application processing portion determines said parameter and specifies a corresponding buffer among said plurality of buffers.  
     
     
         11 . A communication device according to  claim 5 , wherein said logical link control portion determines a parameter corresponding to a type of quality of service required for said communication packet when no parameter is determined for said communication packet.