Patent ID: 7996030

Claim:
A method for reducing call establishment delay in a wireless network, which is used in a network node to call a wireless terminal covered by a wireless network access point/base station through a server, the method comprising: a call establishing step, which uses the server to send a connection request to the wireless terminal through buffering of the wireless network access point/base station when the network node calls the wireless terminal to thus establish a connection; a packet discarding and recording step, which, when the wireless network access point/base station is not able to buffer a packet to be sent to the wireless terminal in a power-saving mode, uses the wireless network access point/base station to discard and record the packet; and a wireless terminal listening and receiving step, which, when the wireless terminal wakes up from the power-saving mode and listens to the wireless network access point/base station to thus obtain a record associated with the packet discarded and recorded, keeps the wireless terminal awake for a span in order to receive the packet.