Information transmission method and device, storage medium, base station and terminal

An information transmission and receiving terminal technology, applied in transmission systems, digital transmission systems, wireless communications, etc., can solve the problems of SIP signaling failure, affecting the successful establishment of IMS calls, and no solutions.

Pending Publication Date: 2020-07-07
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the handover process, because the network executes the EPS Fallback process, there is Session Initiation Protocol (SIP for short) signaling interaction to establish an IMS call, which may cause SIP signaling to fail to be sent, thereby affecting the IMS call. successfully established
[0004] In the existing related technologies, there is no effective solution to the problem of SIP signaling transmission failure generated during the execution of the EPS Fallback process

Method used

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  • Information transmission method and device, storage medium, base station and terminal
  • Information transmission method and device, storage medium, base station and terminal
  • Information transmission method and device, storage medium, base station and terminal

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Embodiment Construction

[0035] As mentioned in the background, in the prior art, when the network initiates the EPS Fallback process, it is generally in the IMS call establishment phase. If the SIP signaling fails to be sent, the UE can retransmit according to certain rules according to the transmission type used by the SIP signaling to improve the sending success rate. For example, if the SIP signaling is sent using the User Datagram Protocol (UDP) protocol, then when the SIP signaling fails to be sent, the terminal will follow the rules of 2 seconds (second, s for short), 4s, 8s or 16s to resend. This will inevitably increase the IMS call setup delay and also increase the probability of IMS call setup failure.

[0036] figure 1 It is an IMS call establishment signaling interaction process in the prior art. refer to figure 1 , the user equipment 1 and other user equipments (not shown in the figure) can perform an IMS call establishment process through the network 2 . figure 1 Only the signaling...

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PUM

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Abstract

The invention discloses an information transmission method and device, a storage medium, a base station and a terminal, and the method comprises: executing an EPS Fallback flow during the building ofan IMS call between a transmitting terminal and a receiving terminal; and forwarding the SIP retransmission message sent by the sending terminal to the receiving terminal, so that the receiving terminal and the sending terminal continue to establish the IMS call, and the SIP retransmission message is selected from a PRACK request message and a response message of the PRACK request. According to the technical scheme provided by the invention, when the EPS Fallback process is executed, the success rate of IMS call establishment can be improved, and the IMS call establishment time can be reduced.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to an information transmission method and device, a storage medium, a base station, and a terminal. Background technique [0002] When initiating an Internet Protocol multimedia subsystem (IMS) call, if the network does not support the Fifth-Generation mobile communications (5G) New Radio (NR) system To provide voice services on the Internet, it is necessary to switch the User Equipment (UE) to the Long Term Evolution (LTE Long Term Evolution, LTE) system through the Evolved Packet System (EPS) fallback process. for voice communication via the LTE system. [0003] However, in the handover process, because the network executes the EPS Fallback process, there is Session Initiation Protocol (SIP for short) signaling interaction to establish an IMS call, which may cause SIP signaling to fail to be sent, thereby affecting the IMS call. successfully built. [000...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/14H04W76/10H04L1/18
CPCH04W36/0011H04W36/14H04W76/10H04L1/1867H04L1/1829
Inventor 孙冰洁陈贤亮何毅徐富荣
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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