Patent ID: 9699706
Date: 2017-07-04
CPC Classifications: H04L,H04W

Claim:
1. A data packet sending method, comprising: receiving, by a radio access network device, a data packet sent by a core network device, where the data packet has a destination of a user equipment currently in a forward access channel (CELL_FACH) state; caching, by the radio access network device after the receiving, the received data packet sent by the core network device; acquiring, by the radio access network device after the caching, a duration that the received data packet is cached on the radio access network device; conditionally transitioning the user equipment from the CELL_FACH state to a dedicated channel (CELL_DCH) state, wherein, during the conditionally transitioning, if the duration that the data packet is cached is greater than or equal to a preset wait duration threshold, then transitioning the user equipment from the CELL_FACH state to the CELL_DCH state, wherein the transitioning comprises sending, by the radio access network device, a radio bearer reconfiguration message to the user equipment currently in the CELL_FACH state to transition to the CELL_DCH state; and sending, after the transitioning, the received data packet to the user equipment via a dedicated channel associated with the CELL_DCH state of the user equipment.