Implementation method and device for long-term evolution LTE fault single-site multicast

Abstract

The present invention provides a method and device for realizing long-term evolution LTE fault single-site multicast. The method for realizing long-term evolution LTE fault single station multicast of the present invention includes: when the LTE base station is a fault single station, the fault single station receives the call request signaling message sent by the calling UE, and the call request signaling message carries the call request signaling message of the calling party. The identification of the multicast group where the UE is located; the fault single station sends a call acceptance feedback message to the calling UE; the fault single station sends an indication message to multiple called UEs, and the indication message includes the multicast IP address and port number corresponding to the identification Information; the indication message is used to instruct the called UE to stop triggering the IGMP joining process and create a multicast receiving process; the faulty single station receives the IP packet sent by the calling UE, and copies and distributes the IP packet to the group where the called UE is located Baseband boards corresponding to multiple cells, and sent to multiple called UEs. The invention can realize the multicast service when a faulty single station occurs.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method and device for realizing long-term evolution LTE fault single-site multicast. Background technique [0002] Multicast refers to sending data packets to a certain set of nodes (ie multicast group) in the form of best-effort transmission in the network interconnection protocol IP network. The source host, that is, the multicast source, only sends one copy of data, and its destination address is Multicast group address; all receivers in the multicast group can receive the same data copy, and only the hosts in the multicast group can receive the data, while other hosts cannot receive it. [0003] In the prior art, when a user equipment (User Equipment, referred to as UE) establishes a data multicast group, a video multicast group, or a voice multicast group, it needs to pre-configure the multicast IP address corresponding to the multicast group, and the user equipment need...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, when a user equipment (User Equipment, referred to as UE) establishes a data multicast group, a video multicast group, or a voice multicast group, it needs to pre-configure the multicast IP address corresponding to the multicast group, and the user equipment needs to send Internet Group Management Protocol (Internet Group Management Protocol, referred to as IGMP) join message to join the multicast group, in the long term evolution (Long Term Evolution, referred to as LTE) system, most UEs are idle in the radio resource control (Radio Resource Control, referred to as: RRC) (IDLE) state, no connection with the network. When a group call is established, multiple called UEs enter the RRC connection state at the same time and initiate random access. However, the air interface resources are limited, and a large number of random accesses caused by multiple users will cause resource conflicts. These will affect the signaling chain establishment process between the user equipment and the Long Term Evolution (LTE) base station multicast group service, and will also increase the time for multicast chain establishment

Moreover, if the LTE base station is in the fault single-site mode, the fault single-site mode means that the base station is disconnected from the core network side, the base station is in an isolated state, and user equipment cannot join the multicast group

Images