Patent ID: 7903578
Filing Date: 2011-03-08
Classification: H04L,H04W

Abstract:
1. A wireless communication method for transmitting a status report for a sequence of data units transmitted over a wireless communication link between a wireless device and a network having a plurality of base stations, the wireless communication link having a data unit transmitting side and a data unit receiving side, the method comprising: receiving, by the data unit receiving side, the data units of the sequence, wherein the received data units of the sequence include a first set of data units starting at a first non-received data unit in the sequence and further comprising data units following the first non-received data unit in the sequence; determining, by the data unit receiving side, status information related to the data units of the sequence, the status information indicating whether each of the data units of the sequence has been received by the data unit receiving side; and transmitting, from the data unit receiving side to the data unit transmitting side, the status report comprising a bitmap providing the status information for only a subset of the first set of data units, wherein an overhead is created by the transmission of the status report, wherein the bitmap has a maximum size for reducing the overhead, and wherein the status report is a Protocol Data Convergence Protocol (PDCP) status report.