| 摘要 |
<p>PURPOSE:To attain an efficient decell and communication processing without requesting an excessive processing capacity to a higher-rank layer processing part by varying a correspondence between a frame buffer number and an identifier at each time of a frame assembly. CONSTITUTION:When a selected FBN(frame buffer number) is defined as (i), the address pointer Pi, information length ST, SN, and connection identifier (VCI) of a frame buffer FBi is obtained by retrieving an FB(frame buffer) management table 11 by using the (i) as a key. Then, SAR-SDU is stored in the buffer of the FBi, CS (convergence)-SDU is assembled, the FB management table 11 is updated, and CS-PDU is assembled. After the end of the assembly, a transaction request is issued to the higher-rank layer, and when a response is received, the address pointer and information length of the CS-PDU is offered to the higher-rank layer, and the transaction is operated. After the end of the transaction, the frame buffer FBi inputted to an empty frame buffer 13.</p> |
