Method and arrangement for resolving a temporary block flow

摘要

The invention relates to a method in a mobile network for resolving a Temporary Block Flow, a TBF, in a wireless network including one or more mobile stations exchanging data with a base station system. The packet data is transmitted by means of one or more RLC/MAC blocks each associated with the TBF. The TBF is identified by means of an Temporary Flow Identity, a TFI, and associated to an MS. The inventive method is applicable in a wireless communication system with an extended TFI addressing space. The method comprises steps of receiving a RLC/MAC block and retrieving a first TFI in the RLC/MAC header. The TFI is compared to an assigned TFI. The capability for the associated MS to resolve TBFs based on extended TFI addressing is determined. If the received first TFI matches assigned TFI and represents a comprehensive TFI for the associated MS, the payload of the RLC/MAC block is decoded. When the first TFI matches assigned TFI value and is identified as a code point to an eTFI, at least a predetermined field of the RLC data block is decoded and an extended TFI, eTFI, is retrieved. The eTFI is compared with an assigned eTFI. Following a match, the payload of the RLC data block is decoded. The procedure is repeated for further RLC/MAC block associated with the TBF until the TBF is resolved.;The invention also relates to a mobile station and a base station system used to resolve a TBF according to the inventive method.

主权项

1. A method for resolving a Temporary Block Flow (TBF) in a wireless network including one or more mobile stations exchanging data with a base station subsystem (BSS) using one or more RLC/MAC (Radio Link Control/Medium Access Control) blocks each associated with the TBF and wherein the TBF is associated to a mobile station and identified by means of a Temporary Flow Identity (TFI), the method comprising:
receiving a RLC/MAC block including an RLC/MAC header and an RLC data block; retrieving a first TFI from a first group of TFIs in the RLC/MAC header; comparing the first TFI with an assigned TFI; determining capability in the mobile station to retrieve an extended TFI (eTFI) field in a transmitted downlink RLC/MAC block; decoding a payload of the RLC/MAC block when the first TFI matches the assigned TFI and represents a comprehensive TFI for the associated mobile station; decoding at least a predetermined field of the RLC data block and retrieving the extended TFI (eTFI) from a second group of TFIs when the first TFI matches the assigned TFI and is identified as a code point to an eTFI; comparing the eTFI with an assigned eTFI; decoding the payload of the RLC data block when the eTFI matches the assigned eTFI; disregarding the RLC/MAC block if the first TFI does not match the assigned TFI or the eTFI does not match the assigned eTFI; receiving a new RLC/MAC block and repeating the steps for said new RLC/MAC block.