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Method for realizing second generation telecommunication (2G)/3G circuit domain calling service in long term evolution (LTE) packet switched (PS) connection status

A connection state, circuit domain technology, applied in electrical components, wireless communication, etc., can solve problems such as increase, and achieve the effect of ensuring smooth progress

Active Publication Date: 2015-05-13
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Method for realizing second generation telecommunication (2G)/3G circuit domain calling service in long term evolution (LTE) packet switched (PS) connection status
  • Method for realizing second generation telecommunication (2G)/3G circuit domain calling service in long term evolution (LTE) packet switched (PS) connection status
  • Method for realizing second generation telecommunication (2G)/3G circuit domain calling service in long term evolution (LTE) packet switched (PS) connection status

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Embodiment Construction

[0033] see figure 1 , is a schematic structural diagram of a mobile communication terminal according to an embodiment of the present invention.

[0034] The mobile communication terminal includes a communication unit 110 , an antenna combination 120 and an antenna switching unit 130 adapted to be coupled with the communication unit 110 . The antenna switching unit 130 is located between the communication unit 110 and the antenna combination 120 and is suitable for switching the coupling mode between the antenna combination 120 and the communication unit 110 .

[0035] Wherein, the communication unit 110 is adapted to work in at least two communication modes; the antenna combination 120 can selectively work in different communication modes or a combination of different communication modes; the antenna switching unit 130 is configured to be able to switch all The coupling mode between the antenna combination 120 and the communication unit 110 is adjusted to match the communicat...

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Abstract

The invention provides a method for realizing a second generation telecommunication (2G) / 3G circuit domain calling service in a long term evolution (LTE) packet switched (PS) connection status. The method comprises the steps that a terminal upper layer sends an antenna switching order to an LTE physical layer; when receiving the antenna switching order from the terminal upper layer, the LTE physical layer modifies antenna measurement configuration of downlink Channel quality indicator / Precoding matrix indicator / Rank indicator (CPR) measurement; the LTE physical layer performs downlink CPR measurement under the antenna measurement configuration, and generates a measurement result to be reported to a network side; after receiving updated configuration information for the measurement result from the network side, the LTE physical layer updates receiving configuration, so as to be adapt to a data transmission mode of single antenna receiving; the LTE physical layer receives a signal from the network side through the updated receiving configuration; while the LTE physical layer updates the receiving configuration, the terminal upper layer controls switch of connection modes of a terminal antenna; and a switched diversity receiving antenna initiates the circuit domain calling service in a circuit domain communication network.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method for realizing 2G / 3G circuit domain calling 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 The direction of network 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 capability, therefore, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W36/14H04W88/06
CPCH04W24/04H04W36/14H04W88/06
Inventor 董宇许佰魁董霄剑曹强许殿沈旭强
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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