LTE (long term evolution) broadcast multicast repeat method
A broadcast, multicast and retransmission technology, applied in the direction of broadcast service distribution, transmission system, digital transmission system, etc., can solve the problems of data packet confirmation, MBMS service reliability, etc., and achieve the effect of less system overhead
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[0046] The present invention will be further described in conjunction with the accompanying drawings.
[0047] figure 1 It is a schematic diagram of transmission in the existing LTE technology. One MBMS session sends data to multiple UEs at the same time. When an MBMS session starts, the UE may be in the idle state RRC_IDLE or in the connected state RRC_CONNECTED. When the UE is in the RRC_IDLE state, there is no need to initiate random access to make the UE enter the RRC_CONNECTED state, that is, the UE can directly receive data transmitted by the MBMS in the RRC_IDLE state. Whether the UE in the RRC_IDLE state or the UE in the RRC_CONNECTED state does not confirm the data packet when receiving the data transmitted by the MBMS, and the UE in the RRC_IDLE state cannot give feedback.
[0048] 1. In special application scenarios, it is necessary to provide reliable broadcast and multicast services to multiple UEs to ensure that each UE can receive broadcast and multicast cont...
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