Mobile terminal of sharing antenna of mobile phone television and movable communication module

A mobile terminal and mobile communication technology, applied in the direction of electrical components, radio/inductive link selection arrangement, transmission system, etc., can solve the problems of high cost, large size of mobile terminal, and inability to share one antenna, etc., to reduce structural difficulty , The effect of reducing hardware costs

Inactive Publication Date: 2009-02-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing mobile terminals with CMMB functions usually have two antennas, one is connected to the TD-SCDMA radio frequency transceiver module, and the other is connected to the S-band radio frequency receiver module of CMMB. The radio frequency receiving module shares one antenna, which makes the mobile terminal have a larger volume and higher cost

Method used

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  • Mobile terminal of sharing antenna of mobile phone television and movable communication module
  • Mobile terminal of sharing antenna of mobile phone television and movable communication module
  • Mobile terminal of sharing antenna of mobile phone television and movable communication module

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Embodiment Construction

[0015] The invention provides a mobile terminal in which a mobile phone TV and a mobile communication module share an antenna, so as to realize that the TD-SCDMA radio frequency transceiver module and the S-band radio frequency receiving module of the CMMB share one antenna. Although the frequency bands of TD-SCDMA and the S-band of CMMB do not overlap and are relatively close to each other, if the TD-SCDMA RF transceiver module and the S-band RF receiver module of CMMB are directly connected to one antenna, there will be the following problems: Band noise may fall in the S band received by CMMB, which will interfere with the reception of S band and affect the receiving sensitivity. Therefore, it is necessary to suppress the side band noise of TD-SCDMA.

[0016] like figure 1 Shown is the mobile phone radio frequency part when mobile phone TV of the present invention shares antenna with mobile communication module, comprises the S band radio frequency receiving module of TD-SC...

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Abstract

The invention provides a mobile terminal for an antenna shared by a mobile phone television and a mobile communication module, including a time-division synchronous CDMA access RF transmit-receive module and a China mobile digital multimedia broadcast S waveband RF receive module. The apparatus also including an antennae and a low pass filter; the input terminal of the low pass filter being connected with the time-division synchronous CDMA access RF transmit-receive module, the output terminal of the low-pass filter being connecting with the antennae, and the China mobile digital multimedia broadcast S waveband RF receive module being connected with the antennae. By means of the technical scheme of the present invention, the time-division synchronous CDMA access frequency band and the China mobile digital multimedia broadcast S waveband can share one antennae, which reduces structure difficulty and hardware cost, at the same time two RF systems can work simultaneously, and the time-division synchronous CDMA access frequency band having non interference to the China mobile digital multimedia broadcast S waveband.

Description

technical field [0001] The invention relates to a mobile terminal, in particular to a mobile terminal in which a mobile phone TV and a mobile communication module share an antenna. Background technique [0002] TD-SCDMA is the abbreviation of English Time Division-Synchronous Code Division Multiple Access (Time Division Synchronous Code Division Multiple Access). The power is 24dBm, and the sensitivity requirement is higher than -108dBm. [0003] CMM is the abbreviation of China Mobile Multimedia Broadcasting (China Mobile Digital Multimedia Broadcasting) in English. It adopts STiMi, a mobile TV receiving standard independently developed by my country. The broadcasting system of multimedia signals such as broadcasting, broadcasting, and data information can realize national roaming. CMMB uses two sets of receiving systems to support both U-band (470MHz~798MHz) and S-band (2635~2660MHz). U-band receives signals from the ground forwarding network, and S-band receives TV broad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/38H04Q7/32H04B1/3827H04B1/40
Inventor 陈建强何钧
Owner ZTE CORP
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