Method for realizing data loading service based on circuit switched domain

Abstract

The invention discloses a method for realizing data bearer service based on the circuit switching domain, which is used for carrying out data bearer service communication between terminals in the data service communication group, including that the network side of the circuit switch domain is respectively for each terminal in the data service communication group Each terminal establishes a data service channel to the network side of the circuit switching domain; the network side of the circuit switching domain transmits the data messages interacted between the terminals through the data service channel connected to each terminal. The invention can reduce the data service channel resources occupied by multiple terminals when carrying out data bearer service communication based on the circuit switching domain, and improve the communication speed.

Description

technical field [0001] The present invention relates to the technical field of data communication, in particular to a method for realizing data bearer services based on a circuit switching domain. Background technique [0002] In the data communication technology, a point-to-point (PTP, Point To Point) data communication service may be carried based on a circuit switching domain (CS, Circuit Switching) of various communication systems. For example, when the CS domain in the GSM mobile communication system bears data services, it is mainly implemented by Shared Interworking Function (SIWF, Shared Interworking Function) equipment, so as to achieve the connection between the public land mobile network PLMN and the fixed communication network (such as PSTN network, ISDN network or PSPDN network, etc.) intercommunication purpose; at the same time, it can also realize the purpose of data communication based on CS domain between different wireless communication terminals. For the ...

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Problems solved by technology

[0005] 1) If N terminals need to perform point-to-point data bearing service communication based on the CS domain of the communication network system, N×(N-1) / 2 data service channels need to be established accordingly. If the number N of terminals joining the communication increases, Then the number of data service channels to be established will increase geometrically. For example, assuming that the number of terminal data participating in the communication is N, the number of data service channels to be established is N×(N-1) / 2. When the (Nth +1) When terminals also join the communication, it is necessary to create [(N+1)×(N+1-1) / 2]-[N×(N-1) / 2]=N data service channels, by This leads to more data service channel resources occupied

[0006] 2) When a terminal broadcasts data messages to multiple other terminals, it needs to send data one by one on the N-1 data service channels established between itself and each other terminal, resulting in a relatively slow communication speed

[0007] 3) When multiple terminals send data messages to one terminal, if the receiving terminal does not have enough cache, it needs to receive the data message sent by one sending terminal before receiving the data message sent by the next sending terminal, so multiple sending terminals are required The terminals coordinate and queue up to wait for the arrival of the sending time, but multiple sending terminals cannot send data at the same time, which will also lead to the problem of slow communication speed

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