A short message based method to transmit HPRD service information

Abstract

The invention relates to a method for transmitting HRPD service information based on short messages, which establishes a connection path between a net element in charge of page information transfer in the HRPD network and a net element in charge of short message transfer in a cdma2000 1x network. When the HRPD calling reaches, the net element in charge of page information transfer in the HRPD network transmits HRPD service arrival information to the net element in charge of short message transfer in the cdma2000 1x through the connection path. The cdma2000 1x transmits the HRPD service arrival information to an HAT in a manner of short message. The HAT receives the short message carrying with HRPD service arrival information, and determines whether to switch to the HRPD network or not as required. The invention provides transmission mechanism of page message between HRPD and cdma2000 1x networks based on SMS, avoids frequent switch between two networks, thereby effectively increasing the wait time of HAT.

Description

technical field [0001] The present invention relates to the switching mechanism between two networks of Code Division Multiple Access 2000 1x (hereinafter referred to as cdma2000 1x) and High Speed ​​Packet Data (hereinafter referred to as HRPD) dual-mode access terminal (hereinafter referred to as HAT), in particular to the switching mechanism through the cdma2000 1x network Short message service (hereinafter referred to as SMS), is a mechanism that transmits HRPD paging information to HAT and notifies HAT in cdma2000 1x network service state to switch to HRPD network to receive service. Background technique [0002] In practical applications, HRPD networks often appear in the form of joint networking with cdma2000 1x. Usually, cdma2000 1x networks are used to provide voice and low-speed data services, and HRPD networks are used to provide data-based services. Users use dual-mode terminals to connect enter. Logically, the cdma20001x network and the HRPD network are two mut...

AI Technical Summary

Problems solved by technology

On the other hand, when the HAT is in the service state of the cdma2000 1x network, because the HAT does not search the HRPD network, it cannot obtain the paging information of the HRPD network, and may miss the business with higher priority from the HRPD network

In addition, under the HRPD network, without using mobile IP (hereinafter referred to as MIP), in order to enable the network to find the HAT, it is necessary to maintain a point-to-point connection (hereinafter referred to as the PPP connection) between the HAT and the network, and the maintenance of the PPP connection It also needs to consume terminal power and network resources

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