Patent ID: 8223797
Filing Date: 2012-07-17
Classification: H04L

Abstract:
1. A method for setting up header compression communication, comprising: deciding, by a header compression policy function entity, whether to perform header compression according to Quality of Service (QoS) requirement of service flow and available resource; if yes sending, by the header compression policy function entity, a header compression indication to a header compression enforcement function entity; receiving, by the header compression enforcement function entity, the header compression indication from the header compression policy function entity; negotiating, by the header compression enforcement function entity, a header compression channel parameter with the other corresponding header compression enforcement function entity; and setting up a header compression channel; wherein the deciding, by the header compression policy function entity, whether to perform header compression according to the QoS requirement of the service flow and the available resource comprises at least one process of: sending, by a Policy Function (PF) entity in an Access Service Network (ASN), header compression policy of the PF entity in the ASN and/or idle resource information the PF entity in the ASN to a PF entity in a Connectivity Service Network (CSN), making, by the PF entity in the CSN, a header compression decision indication; and sending, by a PF entity in a CSN, header compression policy of the PF entity in the CSN and/or idle resource information of the PF entity in the CSN to a PF entity in an ASN, making, by the PF entity in the ASN, a header compression decision indication.