One-key-through business voice flow charging method based on cellular network and its system

Abstract

The present invention relates to a charging method and system for a push-to-talk service voice flow based on a cellular network, which is used for charging a push-to-talk service terminal user based on a cellular network. The method includes: step A, the speaking user sends a voice flow , the POC server forwards the voice stream and performs traffic statistics; step B, the speaking user sends an SR message when releasing the right to speak, the POC server receives the SR message, generates the billing information of the speaking user according to the SR message, and transmits the billing information To the billing server; the billing server uses the billing information to bill the speaking user; Step C, listen to the RR message sent by the user, and the POC server receives the RR message, and generates it according to the RR message and the obtained traffic statistics information The charging information of the listening user is listened to, and the charging information is sent to the charging server; the charging server uses the charging information of the listening user to charge the listening user. The invention provides a real-time, accurate and relatively reliable charging method and system for POC voice streams.

Description

technical field [0001] The invention relates to a push-to-talk (POC) technology based on a cellular network in the communication field, in particular to a charging method and system for a voice flow of a push-to-talk (POC) service based on a cellular network. Background technique [0002] The POC (Push-to-Talk over Cellular) service is a push-to-talk service based on the cellular network. It uses half-duplex mode to realize direct point-to-point and point-to-multipoint communication. That is, when one party speaks, other members can only Answer, can not speak. There is no need to dial a number during a call, and the voice can be transmitted to all members of the group at the same time by pressing and holding a specific button. The receiving party can answer without any response, and the call and call connection process is completed in an instant. In order to realize this POC service, a new network element-POC server is introduced on the network side to complete the forward...

AI Technical Summary

Problems solved by technology

[0003] The POC voice stream is real-time, the right to speak is switched frequently, and the duration of each talk burst is a random value. Therefore, choosing a fixed time to trigger billing will easily cause difficulties in the statistics of user billing information.

In addition, POC is a VoIP technology, and its voice stream is carried on the IP / UDP / RTP protocol. However, since UDP provides unreliable transmission services, in a talk burst, the voice stream sent by the speaker and received by the POC server The voice stream, and the voice stream forwarded by the POC server and the voice stream received by the listener may be inconsistent in size. At this time, the accurate billing of the voice stream of the speaker and the listener is particularly prominent

Similarly, voice flow-related control packets RTCP SR / RR are also carried on the IP / UDP protocol, which may easily lead to the loss of user statistical information carried by it. Therefore, it is necessary to take certain measures to improve the reliability of billing

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