Neighbor cell broadcasting method of scheduling area based on group call service, eMME and ENB

Abstract

The embodiment of the invention provides a neighbor cell broadcasting method of a scheduling area based on a group call service, an eMME and an ENB. The method comprises the following steps: receivingan ENB group call configuration transmission message sent by the ENB, wherein the ENB group call configuration transmission message comprises a pre-filled group call configuration table; querying thescheduling area of the group call service according to the group identifier in the group call configuration table; and sending an eMME group call configuration transmission message to the target ENBaccording to the target ENB list in the ENB group call configuration transmission message and the scheduling area. The eMME executes the method; the ENB performs another method. According to the neighbor cell broadcasting method of the scheduling area based on the group call service, the eMME and the ENB, the network overhead of an S1-T port and the processing load of the network element forwarding message can be effectively reduced.

Description

technical field [0001] The embodiment of the present invention relates to the field of communication technology, and in particular to a neighbor cell broadcast method, eMME and ENB in ​​a scheduling area based on a group call service. Background technique [0002] In the broadband multimedia trunking system, in order to enable the idle state trunking terminal cell to be reselected, it can access the ongoing group call service faster and further reduce the service interruption delay. figure 1 It is a message interaction flowchart of a group call service in the prior art, such as figure 1 Shown: [0003] The cells under T-eNB1, T-eNB2, and T-eNB3 are neighbor cells and are connected to the same eMME. [0004] Step 1: Group call context establishment, group call context expansion, T-eNB-initiated group call context release, and neighbor cell relationship configuration parameter changes occur on the T-eNB side; [0005] Step 2: T-eNB1 sends an eNB Group Configuration Transfe...

AI Technical Summary

Problems solved by technology

The above two characteristics of this solution, with the expansion of the network, the increase of adjacent cells, and the frequent occurrence of service establishment and release, the message interaction of the S1-T port will increase exponentially, which will cause a certain burden on the network overhead and the processing of network elements. , especially when the actual broadcast area of ​​the group call is relatively small, but there are many adjacent base stations of the base station, the message flooding of the S1-T port is more obvious

Furthermore, eMME, as a message aggregation and distribution center, sends a message to each T-eNB in ​​the Target eNB List without making judgments or restrictions after receiving the message. In fact, some T-eNBs do not receive the message. For example, the T-eNB is not in the scheduling area of ​​the group call service. At this time, if these messages are sent to the eMME in an excessively large range, the network overhead and network element processing burden will be heavier.

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