Signal processing method in multi-mode and multi-standby mobile terminal and related device therefor

Abstract

The invention discloses a signal processing method in a multi-mode and multi-standby mobile terminal and a related device therefor, aiming at providing the scheme that on the premise of adding no extra Bluetooth chip, the user can simply and conveniently use a prepared Bluetooth headset when in every communication mode of conversation. The method comprises: processing a first base band processingplatform of the current conversation, decoding an empty signal to be an analog signal, and sending the analog signal obtained by decoding to a second base band processing platform which is the only one connected with the Bluetooth chip; decoding and compressing the received analog signal to be a digital signal which is engaged with the Bluetooth chip and has PCM coded format; and sending the digital signal to the Bluetooth headset through the Bluetooth chip.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and in particular to a signal processing method in a multi-mode multi-standby mobile terminal, a multi-mode multi-standby mobile terminal and a baseband processing platform in the multi-mode multi-standby mobile terminal. Background technique [0002] With the increasingly perfect communication network, communication networks of various standards have been successfully commercialized. People have higher and higher requirements for communication, and mobile terminals that can work normally in multiple network environments at the same time have been widely used. At present, mobile terminals can adopt any dual-mode dual-standby or multi-mode multi-standby mode of TD-SCDMA, WCDMA, CDMA2000EVDO, GSM, and CDMA20001X. [0003] In order to support multiple communication modes, the multi-mode multi-standby mobile terminal has a corresponding baseband processing platform for each comm...

AI Technical Summary

Problems solved by technology

The advantage of this solution is that it is easier to control, but on the other hand, there is also the problem of increasing the complexity of the design layout due to the increase of the corresponding Bluetooth chip. What is more serious is that each Bluetooth chip has The corresponding radio frequency antenna, due to the space limitation in the mobile terminal, the distance between multiple Bluetooth radio frequency antennas is short, so it cannot overcome the interference well to ensure the stability of the Bluetooth radio frequency signal. In addition, add the Bluetooth chip and the corresponding radio frequency antenna The structure of the mobile terminal needs to be greatly adjusted, and the implementation process is relatively complicated;

[0007] 2. Multiple baseband processing platforms are connected to a special Bluetooth chip that can simultaneously support the same pulse code modulation (PCM, Pulse Code Modulation) clock and signals in different PCM encoding formats. This method has high requirements for the Bluetooth chip and requires Bluetooth The chip can dynamically switch the Bluetooth PCM encoding format configuration after power-on, and requires multiple baseband processing platform PCM clocks to be synchronized. Therefore, the choice of baseband platform and Bluetooth chip selection is poor, and the product cost is relatively low. high

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