Patent ID: 8437257

Claim:
A method in a user equipment of a wireless communication system for reporting a buffer status to a network node of the wireless communication system, the user equipment having a data buffer associated with a radio bearer, the method comprising the steps of: determining by the user equipment, data available for transmission in the data buffer to be transmitted to the network node; determining by the user equipment, whether the radio bearer is configured with header compression; determining by the user equipment, content of a buffer status report based at least on the data available for transmission and the determination of whether the radio bearer is configured with header compression, wherein; in response to a determination that the radio bearer is not configured with header compression, the user equipment determines a buffer size equal to the data available for transmission; and in response to a determination that the radio bearer configured with header compression, the user equipment determines a buffer size equal to a size of any compressed data in the data buffer, a size of any compressed data in the data buffer plus uncompressed data in the data buffer, or a size of any compressed data in the data buffer plus an uncompressed version of the compressed data in the data buffer; and reporting by the user equipment, the buffer status comprising the buffer size to the network node.