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Transceiver, mobile terminal as well as method for processing transmission and receive

A transceiver and mobile terminal technology, applied in electrical components, TV system scanning details, transmission systems, etc., can solve problems such as limiting the characteristics of TD-SCDMA terminals, and achieve the effect of reducing design difficulty, simple implementation, and improving flexibility.

Active Publication Date: 2012-08-22
LEADCORE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] However, from a system perspective, there are still questions about whether these measures are reasonable and whether these measures can completely solve the above contradictions, especially with the wider application of TD-SCDMA technology in other fields, such as mobile TV Solving the problem of terminal frequency switching speed will largely limit the features supported by TD-SCDMA terminals

Method used

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  • Transceiver, mobile terminal as well as method for processing transmission and receive
  • Transceiver, mobile terminal as well as method for processing transmission and receive
  • Transceiver, mobile terminal as well as method for processing transmission and receive

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0063] The transceiver in the first embodiment of the present invention is implemented based on the single local oscillator architecture in the prior art.

[0064] like image 3 As shown, the transceiver in the first embodiment of the present invention includes a receiving module, a sending module, a local oscillator A1, a local oscillator A2 and a switch, wherein:

[0065] The receiving module and the sending module are connected with the mobile terminal baseband processing module (not shown in the figure);

[0066] The receiving module or the sending module is connected to the antenna through a switch;

[0067] The sending module is connected to the local oscillator source A1;

[0068] The switch is used to switch the connection between the receiving module and the local oscillator between the local oscillator A1 and the local oscillator A2.

[0069] It has been explained above that the transceiver in the first embodiment of the present invention is implemented based on t...

no. 2 example

[0101] In the first embodiment of the present invention, the radio frequency transceiver makes full use of the existing local oscillator source of the existing single local oscillator source architecture, but the present invention can also be realized by using more than two local oscillator sources, i.e. dedicated Because the local oscillator source of the sending module is not connected to the receiving module, at the same time, two local oscillator sources are set for the receiving module, and the receiving module selects one of the two local oscillator sources through the SPDT switch. Just connect.

[0102] In the second embodiment of the present invention, it is implemented based on the existing dual local oscillator architecture.

[0103] like Figure 4 As shown, the transceiver in the second embodiment of the present invention includes a receiving module, a sending module, a local oscillator B1, a local oscillator B2, a local oscillator B3 and a switch, wherein:

[0104]...

no. 3 example

[0124] The transceiver of the third embodiment of the present invention is as Figure 5 As shown, it is implemented based on the transceiver of the existing single local oscillator architecture.

[0125] combine Figure 4 and Figure 5 It can be found that the composition of the transceiver of the third embodiment of the present invention is exactly the same as that of the transceiver of the second embodiment, the difference is that the local oscillator sources C2 and C3 are both increased local oscillator sources, in order to reduce the increase Mutual interference between the VCO (Voltage Controlled Oscillator) of local oscillator sources C2 and C3 and the VCO of existing local oscillator source C1 in the single local oscillator architecture and reduce the chip area, the VCOs of local oscillator sources C2 and C3 are both It is set outside the chip where the receiving module and the sending module are located.

[0126] The phase-locked loops of the local oscillator source...

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Abstract

The invention discloses a transceiver, a mobile terminal and a transceiving processing method, wherein the transceiver is used for the mobile terminal and comprises a receiving module, a sending module, a first local oscillator source, a second local oscillator source and a shift switch used for the switching between a first connection and a second connection, wherein the first connection is between the receiving module and the first local oscillator source, the second connection is between the receiving module and the second local oscillator source; in the first local oscillator source and the second local oscillator source, and the voltage control oscillator of at least one local oscillator source is arranged outside a chip where the sending module and the receiving module are positioned. The transceiver, the mobile terminal and the transceiving processing method solve the problem of receiving adjacent time slot different frequency and transceiving the adjacent time slot different frequency, reduce the design difficulty of the chip, reduce the area of the chip, improve the flexibility of the use of the chip and are realized simply.

Description

technical field [0001] The invention relates to the design of a mobile terminal, in particular to a transceiver, a mobile terminal and a transceiver processing method. Background technique [0002] Baton Handover is one of the core technologies of the TD-SCDMA mobile communication system. Its design idea is to use the uplink pre-synchronization technology. The time relations of are transferred to the target base station respectively. [0003] When the relay handover is an inter-frequency relay handover, that is, the operating frequency of the target cell is different from that of the original cell, if the service time slot allocated in the original cell is TSn, and the service time slot allocated in the target cell is TS(n-1 ), at this time, TS(n-1) / TSn adjacent time slots will be sent and received at different frequencies, and the guard interval for sending and receiving is 12.5us or 16 chips. [0004] The switching of the TD-SCDMA system also requires the frequency of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/46H04B1/38H04B1/40H04B1/44
Inventor 樊锋
Owner LEADCORE TECH