Method for Realizing 2G/3G Circuit Domain Called Service in LTE PS Connection State

Abstract

A method for realizing a 2G / 3G circuit domain called service in an LTE PS connection state, comprising: after receiving a paging message from a 2G / 3G cell during the receiving process in the 2G / 3GIDLE state, the upper layer unit of the terminal sends a paging message to the LTE physical layer Antenna switching instruction; when receiving an antenna switching instruction from the upper layer of the terminal, the LTE physical layer modifies the antenna measurement configuration for downlink CPR measurement; the LTE physical layer performs downlink CPR measurement under the antenna measurement configuration, and generates a measurement result reported to the network side ; After receiving the updated configuration information from the network side for the measurement results, the LTE physical layer updates the receiving configuration to adapt to the data transmission mode for single-antenna reception; the LTE physical layer receives the updated receiving configuration from the network side. signal; the upper layer of the terminal controls the switching of the terminal antenna connection mode when the LTE physical layer updates the receiving configuration; and responds to the called service in the circuit domain in the 2G / 3G cell. The embodiment of the present invention can ensure the service quality of mobile communication.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method for realizing 2G / 3G circuit domain called service in the LTE PS connection state. Background technique [0002] With the vigorous development of various Internet applications, the existing third-generation (3G, 3Generation) communication network can no longer meet the growing needs of people. Wireless communication systems are increasingly showing the development trend of mobility, broadband and Internet. Under this situation, LTE (Long Term Evolution, 3GPP long-term evolution project), as the fourth generation (4G, 4Generation) communication technology, has become the future network direction of evolution. [0003] The LTE network is based on the Internet Protocol (IP, Internet Protocol) architecture, and can only provide voice over IP (VoIP, Voice over IP) services based on the packet domain (PS, Packet Switched). and service control capabilities, so it is necessary...

AI Technical Summary

Problems solved by technology

[0008] Furthermore, compared with single-standby mobile communication terminals, the printed circuit board area of ​​mobile communication terminals with dual-standby capabilities will also increase, and the screens of mid- and low-end mobile communication terminals currently on the market are generally 4.0" and below. This brings challenges in design, especially for manufacturers with strict industrial design requirements.

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