Patent ID: 8179921
Filing Date: 2012-05-15
Classification: H04L,H04W

Abstract:
1. A method of constructing a medium access control protocol data unit (MAC PDU) to include a buffer status report (BSR), the method comprising: determining, in a processor, whether any padding bits are available in the MAC PDU; if a number of padding bits is equal to or larger than a size of Short BSR plus its sub-header but smaller than a size of Long BSR plus its sub-header and if more than one Logical Channel Group (LCG) has buffered data, triggering the BSR; and including the triggered BSR into the MAC PDU, wherein the MAC PDU contains a Logical Channel ID (LCID) field and the triggered BSR, wherein a format of the triggered BSR has 2 bits of Logical Channel Group ID (LCG ID) field and 6 bits of buffer size field, and wherein a value of the LCID field for the triggered BSR is different from a value of the LCID field for the Short BSR.