Conversion method of circuit voice to voip voice in satellite mobile communication system
A technology of satellite mobile communication and conversion method, applied in the field of conversion of circuit voice to VOIP voice in satellite mobile communication system, can solve the problems of small number of bytes of voice data packets, large transmission delay, precious air interface resources of satellite communication system, etc. , to achieve the effect of saving air interface resources and increasing user capacity
Active Publication Date: 2022-07-01
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology
However, there is a big difference between the satellite mobile communication system and the ground mobile communication system. The air interface resources of the satellite communication system are precious, and the transmission delay is large.
If the SIP voice format is used in the satellite mobile communication system, due to the small number of voice data packets, most of the IP voice packets are auxiliary information IP headers, which will cause low utilization of channel resources.
In addition, if the VOIP voice flow is used on the air interface of the satellite mobile communication system, the call setup time will be long due to the frequent flow exchange
It can be seen that in order to realize the reference of the satellite mobile communication system to the terrestrial mobile communication system, it is necessary to solve the conversion problem of circuit voice to VOIP voice, but there is no such attempt in the prior art
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[0026] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] A method for converting circuit voice to VOIP voice in a satellite mobile communication system, wherein the satellite mobile communication system includes satellite terminal UE, satellite base station, core network, IP multimedia subsystem IMS and other equipment. UE is the starting point of service triggering and the end point of receiving; the satellite base station can realize the protocol processing function of the wireless access network part of the satellite mobile communication system, and transmit services, signaling and test and verification data between the core network and end users; the core network is The processing center of UE entry and exit network and data routing; IMS is the call session processing center of the user plane and the interworking gateway with PSTN.
[0028] figure 1 It i...
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The invention discloses a method for converting circuit voice to VOIP voice in a satellite mobile communication system, and belongs to the technical field of satellite mobile communication. The method can transmit circuit voice in satellite mobile communication system, and can convert circuit signaling, short message and circuit voice transmitted by air interface into standard VOIP format and standard VOIP process for transmission at the core network interface. The present invention can be applied to the satellite mobile communication system based on LTE system or 5G system, deploying core network and IP multimedia subsystem in gateway station, adding voice conversion function on satellite base station or adding voice conversion gateway equipment in the system, Through the voice conversion function, the voice in the satellite mobile communication system adopts different transmission methods in the air interface and the core network interface.
Description
technical field [0001] The invention belongs to the technical field of satellite mobile communication, in particular to a method for converting circuit voice to VOIP voice in a satellite mobile communication system. Background technique [0002] At present, the construction of satellite mobile communication system is imminent, and many key technologies need to be broken through. In terms of communication protocols, referring to the mature mobile communication protocol system on the ground is the best way to reduce technical risks and speed up the development progress. However, the satellite mobile communication system is very different from the ground mobile communication system. The air interface resources of the satellite communication system are precious and the transmission delay is large. If the SIP voice format is adopted in the satellite mobile communication system, due to the small number of bytes of the voice data packets, most of the IP voice packets are IP header...
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IPC IPC(8): H04B7/185H04M7/00
CPCH04B7/1853H04B7/18558H04B7/18573H04M7/0081
Inventor 张亚生刘昊昱李广达祝婵婵顾少龙周平吕文浩庞策
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP