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Mobile terminal and receiving-transmitting method of radio frequency signal

A mobile terminal and signal technology, applied in wireless communication, broadcast receiving circuits, electrical components, etc., can solve the problems of high hardware cost and increased structural design difficulty, and achieve the effect of reducing hardware cost and structural design difficulty

Active Publication Date: 2012-12-19
ZTE CORP
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method increases the difficulty of structural design, and the hardware cost is relatively high

Method used

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  • Mobile terminal and receiving-transmitting method of radio frequency signal
  • Mobile terminal and receiving-transmitting method of radio frequency signal
  • Mobile terminal and receiving-transmitting method of radio frequency signal

Examples

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Embodiment Construction

[0028] The invention solves the technical problem of co-frequency interference of U-band and S-band reception of CMMB when antennas are shared by adding filters to the wireless communication transmitting module branch and the CMMB receiving branch respectively.

[0029] The mobile terminal of this embodiment includes: an antenna, a wireless communication transmitting module, a mobile multimedia broadcast receiving module, a first filter and a second filter, the antenna is respectively connected with the wireless communication transmitting module and the mobile multimedia broadcast receiving module, and the first filter The filter is connected between the wireless communication transmitting module and the antenna, and the second filter is connected between the mobile multimedia broadcast receiving module and the antenna. The first filter and the second filter are used to suppress the wireless communication transmitting module from transmitting signals. Sideband noise generated b...

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Abstract

The invention discloses a mobile terminal and a receiving-transmitting method of a radio frequency signal. The mobile terminal comprises an antenna, and a wireless communication transmitting module and a mobile multimedia broadcasting receiving module, which are connected with the antenna, wherein a first filter is arranged between the wireless communication transmitting module and the antenna, a second filter is arranged between the mobile multimedia broadcast receiving module and the antenna, and the first filter and the second filter are used for inhibiting sideband noise generated by the mobile multimedia broadcasting receiving module when the wireless communication transmitting module transmits a signal. The filters are added in a wireless communication link and a China mobile multimedia broadcasting (CMMB0 receiving path to inhibit the sideband noise of a transmitting frequency band of the wireless communication transmitting module, so that a scheme for the wireless communication transmitting module and the CMMB to share one antenna can be realized, and the radio frequency signal of the wireless communication transmitting module in the terminal can be prevented from interfering the CMMB.

Description

technical field [0001] The invention relates to the technical field of mobile communication and mobile multimedia broadcasting, in particular to a mobile terminal and a method for transmitting and receiving radio frequency signals. Background technique [0002] China Mobile Multimedia Broadcasting (CMMB) adopts the mobile TV reception standard STiMi, which is applicable to broadcasting service frequencies in the frequency range from 30MHz to 3000MHz. The broadcast system of the signal can realize roaming in the whole country. 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 broadcast signals from satellites. [0003] At present, all CMMB terminal solutions use independent antennas to realize CMMB reception. This is because the communication frequency band of the mobile phone terminal is very close to the CMMB frequency band, and the sid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W88/02H04B1/40
CPCH04H40/18H04W4/06H04B1/0053H04H20/72H04W88/06
Inventor 陈建强童向杰
Owner ZTE CORP
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