A call processing method and device

Abstract

The embodiment of the invention discloses a call processing method and device. The call processing method includes the steps that a relay station of a first site transmits a first call setup request to a relay station of a second site according to a call request triggered by a first terminal under the site, the call request of the first terminal is triggered to a second terminal under the second site, and the first call setup request includes identification of the second terminal; the relay station of the first site judges whether a second call setup request transmitted by the relay station of the second site is received or not before a call setup response transmitted by the relay station of the second site is received, the second call setup request is transmitted by the relay station of the second site according to the call request aiming at the first terminal and transmitted by the second terminal, and the second call setup request includes identification of the second terminal; if yes, the relay station of the first site transmits call collision notification to the first terminal to inform the first terminal of delayed call. By means of the call processing method and device, call collision can be avoided, and the access success rate is increased.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a call processing method and device. Background technique [0002] In the centralized trunking communication system, there is a dedicated channel as the control channel, which is used to transmit control signaling, and the terminal usually waits on the control channel, and needs to send a request to the trunking system on the control channel every time a call is made, and the trunking system is the terminal After the service channel is allocated, the terminal is notified to switch to the service channel, and the terminal returns to the control channel after the call ends. In this way, the control channel needs to be kept in a long-term transmission state at ordinary times, and one channel will be wasted if one channel is specially reserved as the control channel, which ultimately leads to high system cost and complexity. [0003] In the distri...

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Problems solved by technology

This requires the control channel to maintain a long-term transmission state at ordinary times, and reserving a channel as a control channel will waste a channel, which will eventually lead to high system cost and complexity

[0003] In the distributed trunking communication system, the system cost and complexity are relatively low, but the call status information between sites cannot be managed uniformly. When the terminals at different sites initiate the same call at the same time, the calls of two terminals may be access, but each other cannot call each other, that is, call conflicts are prone to occur in the current distributed trunking communication system, and the success rate of access is low

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