GSM/TD-SCDMA dual-mode terminal chip having single chip and single DSP construction

A TD-SCDMA, dual-mode terminal technology, applied in the field of mobile communication terminal chips, can solve the problems of complex speed, increased power consumption, multi-chip area, etc., to achieve high efficiency, reduced production costs, and reduced overall power consumption. Effect

Active Publication Date: 2009-04-01
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The relatively independent processing of GSM and TD-SCDMA requires more chip area and increased power consumption, whi

Method used

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  • GSM/TD-SCDMA dual-mode terminal chip having single chip and single DSP construction
  • GSM/TD-SCDMA dual-mode terminal chip having single chip and single DSP construction
  • GSM/TD-SCDMA dual-mode terminal chip having single chip and single DSP construction

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0046] Figure 4 It shows the principle of the embodiment of the GSM / TD-SCDMA dual-mode terminal chip of the single-chip single-DSP architecture of the present invention. See Figure 4 , the dual-mode terminal chip 401 includes: microcontroller (MCU / ARM, Micro Controller Unit / Advanced RISC Machines) 430, chip memory 440, I / O bridge 441, single DSP chip 402, clock generator 404 and crystal oscillator 403, data And program memory 425, GSM timing module 442, TD-SCDMA timing module 443, GSM accelerator 413, TD-SCDMA accelerator 423, sleep mode double confirmation module, IQ channel ADC / DAC414 responsible for GSM radio frequency signal, responsible for TD-SCDMA radio frequency signal IQ channel ADC / DAC424, radio frequency control module 416, auxiliary DAC409.

[0047] The microcontroller 430 controls and schedules most of the modules inside the dual-mode ...

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Abstract

The present invention discloses a GSM/TD-SCDMA terminal chip of a single-chip single DSP architecture, which realizes the GSM and TD system programs on a single DSP, thereby reducing the chip area and cost, lowering power consumption and improving the performance of interactive systems. The chip includes: a micro-controller; a single clock generator and crystal vibration; and a single DSP chip. The single DSP chip includes a chip control module, responding GSM frame interrupt and TD frame interrupt in time, distributing system resources to the GSM mode and TD-SCDMA mode, controlling the start-up of the GSM and TD-SCDMA radiofrequency signal, and shielding the GSM timer interruption or TD-SCDMA timer interruption for manually controlling network or single mode terminal; a sleeping mode dual affirmation module, detecting that the GSM and TD-SCDMA are all at a sleeping allowing state for allowing the DSP chip to enter into a sleeping mode; a GSM accelerator and a TD-SCDMA accelerator, for performing auxiliary digital signal processing to GSM and TD-SCDMA under the control of a single DSP. The invention can be applied to the mobile communications field.

Description

technical field [0001] The invention relates to a mobile communication terminal chip, in particular to a GSM / TD-SCDMA dual-mode terminal chip realized by a single-chip single-DSP architecture. Background technique [0002] As the third-generation mobile communication standard with China's independent intellectual property rights, TD-SCDMA will start large-scale network construction and commercial use in recent years. There is the popularity of GSM network. Therefore, for a relatively long period of time, the TD network and the GSM network will be in a state of mutual coverage and simultaneous operation. If the same terminal can access two types of networks, it will bring great convenience to users. In addition, from the perspective of operators, in order to retain existing customers and protect initial investment, they also hope that terminals can support multiple modes of access. Therefore, the development of dual-mode terminals has become one of the most urgent needs in...

Claims

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Application Information

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IPC IPC(8): H04W88/06H04B1/38
CPCY02D30/70
Inventor 张治师延山林敬东
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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