BYPASS SERVICE IMPLEMENTING METHOD, NETWORK UNIT, NETWORK UNIT PROXY, AND SYSTEM THEREOF

摘要

The present invention provides a method for bypassing data service passing through a Home Node B (HNB), a network unit proxy used as the proxy of local network units, a network unit for providing service for User Equipment (UE) in the core network, and the system thereof. The method includes: UE sends an activate PDP context request message; if the Service GPRS Support Node (SGSN) finds out the Access Point Name (APN) in the request message is Local IP Access (LIPA) or Select IP Traffic Offload (SIPTO), the SGSN selects the Gateway GPRS Support Node (GGSN) proxy collocated in HNB gateway (HNB-GW); the SGSN sends a create PDP context request message to the HNB-GW; the GGSN proxy finds out a proper local GGSN and sends the create PDP context request message to this GGSN; the GGSN prepares PDP context and sends back a create PDP context response message; the GGSN proxy forwards the response to the SGSN; then, PDP context update is executed between the SGSN and the GGSN; SGSN sends an activate PDP context receipt message to UE; and UE configures itself with the parameters received from SGSN and enjoys the bypass service through the allocated IP address.