Method for providing bearer specific information for wireless networks

摘要

A Packet Control Function (PCF) may not have enough knowledge about packet data arriving on a bearer path via a Packet Data Serving Node (PDSN) to appropriately decide how best to handle the packet data. Thus, the PDSN may provide bearer-specific information by encapsulating the packet data within the payload of a Generic Routing Encapsulation (GRE) frame, and for a requested feature, setting a protocol-type field in the header of the GRE frame indicating that the packet includes an attribute field, and adding an attribute field to the payload of the GRE packet to provide attribute data corresponding to the requested feature. The PCF may send an A-11 request to the PDSN indicating which features the PDSN is requested to enable. For example, for short data indication, the PCF may request the PDSN add to the GRE frame an attribute field containing attribute data indicating when a Short Data Burst is suitable.

主权项

1. A method for negotiating capability between a packet data network and a wireless network, wherein nodes of the wireless network communicate via Generic Routing Encapsulation (GRE) protocol, the method comprising:
sending a request in signaling messages from the wireless network requesting features at time of call or link establishment, comprising requesting that GRE frames received from the packet data network include in payloads of the GRE frames one or more attribute fields comprising attribute data corresponding to the requested features, wherein the requested features include an indication of support for receiving high-priority data indications and the packet data network comprises a packet data serving node (PDSN); and receiving a reply in signaling messages indicating whether the requested features are enabled.