Paging notification method, paging method and paging device

Abstract

The embodiment of the invention provides a paging notification method, a paging method and a paging device. When an SGW needs to send data to UE, the paging notification method, the paging method and the paging device are used for reducing internetwork consumption, synchronizing internetwork data and improving network efficiency under the condition that S1-U interface connection is released. The paging notification method includes the steps that the SGW receives data packages which are sent to the UE; the SGW caches the data packages and sends downlink data notification messages to an MME which serves the UE, and the downlink data notification messages are used for notifying the MME of paging the UE. Time for caching the data packages by the SGW is larger than or equal to paging time for paging the UE by the MME.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for indicating paging and paging. Background technique [0002] In the Long Term Evolved (LTE) network, when the connection of the S1 User Plane Interface (S1 User Plane Interface, S1-U) is released, if the Serving Gateway (SGW) receives a message that needs to be delivered to the user equipment (User Equipment, UE) downlink data packets, the SGW needs to cache the downlink data packets, and notify the mobility management entity (Mobility Management Entity, MME) to page the UE, the specific steps are as follows figure 1 shown, including: [0003] S11, the SGW receives a downlink data packet sent to the UE, but the user plane connection with the user does not exist. SGW will cache this data. [0004] S12, the SGW sends a downlink data indication (Downlink Data Notification) message to the MME. [0005] S13, the MME replies a downlink data notification ackn...

AI Technical Summary

Problems solved by technology

Due to the independence of network elements and the inconsistency of configuration parameters in each network element, it is easy to cause the time when SGW caches downlink data packets and the time when MME paging is out of sync.

If the SGW buffers the downlink data packets for less than the MME paging time, when the SGW considers that the data delivery timeout fails and discards the data packets, the MME is still paging, resulting in network consumption of paging signaling, and at the same time If the subsequent MME successfully pages the UE, but the SGW has no data packets to send, all of the above will cause the quality of the LTE network to decline.

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