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Communication processor, method for realizing VoLTE, mobile terminal and data card

A technology for communication processors and mobile terminals, which is applied in the field of mobile terminals and data cards, communication processors and the realization of VoLTE. Communication, the effect of reducing requirements

Inactive Publication Date: 2016-03-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] 1) Not conducive to power saving: the main modules of the VoLTE voice function are running on the AP. During the VoLTE voice call, for example, after the smartphone VoLTE voice call goes black, the AP still needs to run the IMS protocol and cannot enter deep sleep.
[0019] 2) It is not conducive to the stability and promotion of VoLTE functions on mobile terminals: the VoLTE wireless access management function in the VoLTE function control module needs to be transplanted and adapted to different LTE MODEM wireless protocol stacks of different manufacturers
[0020] 3) Not conducive to the development of 4G / 5G mobile terminals

Method used

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  • Communication processor, method for realizing VoLTE, mobile terminal and data card
  • Communication processor, method for realizing VoLTE, mobile terminal and data card
  • Communication processor, method for realizing VoLTE, mobile terminal and data card

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1, a kind of communication processor CP, is applied in LTEMODEM, comprises:

[0063] VoLTE function control module, voice codec module, wireless protocol stack entity, IMS protocol stack entity and TCP / IP protocol stack entity;

[0064] The VoLTE function control module exchanges control messages with the voice codec module, the IMS protocol stack entity, and the wireless protocol stack entity respectively; the TCP / IP protocol stack entity interacts with the wireless protocol stack entity and the IMS protocol stack entity, respectively. The entities exchange TCP / IP data; the voice codec module exchanges audio data and control messages with peripheral audio equipment, and exchanges audio data with IMS protocol stack entities.

[0065] This embodiment provides an LTEMODEMCP embedded with a VoLTE voice function, which can be applied to products of different forms. In addition to supporting the development of android / windowsAP+LTEMODEMCP smart machine products, i...

Embodiment 2

[0069] Embodiment 2. A mobile terminal that implements VoLTE voice, such as image 3 shown, including:

[0070] AP and the CP described in Embodiment 1;

[0071] The AP includes: a VoLTE interface interaction module;

[0072] The VoLTE function control module and the IMS protocol stack entity, the wireless protocol stack entity, and the VoLTE interface interaction module exchange control messages; the TCP / IP protocol stack entity interacts with the wireless protocol stack entity and the IMS protocol stack entity. IP data; audio data and control messages are exchanged between the voice codec module and the audio device, and audio data is exchanged between the IMS protocol stack entities.

[0073] This embodiment is a VoLTE implementation solution based on LTEMODEMCP for a mobile terminal. The main modules of the VoLTE voice function are integrated into the LTEMODEMCP for implementation. The CP may also include a radio frequency baseband module for exchanging TCP / IP data wit...

Embodiment 3

[0108] Embodiment 3, a data card, including:

[0109] CP as described in Embodiment 1;

[0110] The CP also includes:

[0111] The audio equipment is connected with the speech codec module, and interacts with control messages and audio data.

[0112] Figure 4 Shown is one of the VoLTE voice function data card product solutions, assuming that the original data card PC software supports the CS voice function. Figure 4 In the scheme shown, the LTEMODEMCP structure and image 3 The solution is the same, except that the VoLTE function control module is connected to the VoLTE function module of the PC software in the PC instead of being connected to the VoLTE interface interaction module.

[0113] 1) The LTEMODEMCP chip embedded with VoLTE voice function uses the AT command interface externally and is compatible with CS call standard commands. Therefore, the original AT commands can be used to interact with the PC, and simple extensions can be made (VoLTE voice function availa...

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Abstract

The invention provides a communication processor, a method for realizing VoLTE (Voice over LTE), a mobile terminal and a data card. The communication processor comprises a wireless protocol stack entity, a VoLTE function control module, a voice coding and decoding module, an IMS (IP Multimedia Subsystem) protocol stack entity and a TCP / IP (Transmission Control Protocol / Internet Protocol) stack entity. The VoLTE function control module interacts with the voice coding and decoding module, the IMS protocol stack entity and the wireless protocol stack entity in terms of control messages. The TCP / IP stack entity interacts with the wireless protocol stack entity and the IMS protocol stack entity in terms of TCP / IP data. The voice coding and decoding module interacts with external audio equipment in terms of audio data and control messages, and interacts with the IMS protocol stack entity in terms of audio data. According to the VoLTE realizing scheme, different product forms can be supported, the power consumption is reduced, and requirements of communication devices between an AP (Application Processor) and a CP (Communication Processor) are minimized.

Description

technical field [0001] The invention mainly relates to the field of embedded mobile terminals, in particular to a communication processor, a method for realizing VoLTE, a mobile terminal and a data card. Background technique [0002] Under the 2G / 3G network, the voice call of the mobile terminal is realized through the CS (CircuitSwitch, information exchange based on the circuit); the LTE4G network only supports the PS (PacketSwitch, information exchange based on the packet data) mode data communication service, not Support voice calls in CS mode. Therefore, under the separate LTE4G network, it is necessary to adopt PS-based VoLTE (VoiceoverLTE, voice service based on long-term evolution) technology, and use packet data exchange to realize LTE4G voice calls. Under the mixed 2G / 3G / 4G network, CSFB (CircuitSwitchedFallback) can be used to fall back to the 2G / 3G network for voice calls in CS mode. [0003] Mobile terminal VoLTE voice call software modules such as figure 1 As...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/253H04W52/02H04W88/02H04L29/06
CPCH04L65/1016Y02D30/70
Inventor 陈光
Owner ZTE CORP
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