CN1522089A - Frequency synthesis device for dual mode multiple frequency range transceiver and method thereof - Google Patents

Frequency synthesis device for dual mode multiple frequency range transceiver and method thereof Download PDF

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Publication number
CN1522089A
CN1522089A CNA031172776A CN03117277A CN1522089A CN 1522089 A CN1522089 A CN 1522089A CN A031172776 A CNA031172776 A CN A031172776A CN 03117277 A CN03117277 A CN 03117277A CN 1522089 A CN1522089 A CN 1522089A
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China
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frequency
gsm
tsm
scdma
radio
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郑建宏
陆秋捷
彭火成
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CHORGYOU XINKE Co Ltd CHONGQING
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CHORGYOU XINKE Co Ltd CHONGQING
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Abstract

A double mode multiple frequency band transceiver frequency synthesis apparatus and method, wherein the frequency synthesis circuits needed by TD-SCDMA and GSM UE are integrated, for accomplishing the radiofrequency local oscillator signal and intermediate frequency local oscillator signal needed for the TD-SCDMA / GSM UE double mode multiple frequency band reception and transmission through the minimum hardware platform resources, so as to realize the corresponding radiofrequency signal reception and transmission.

Description

Bimodulus multiband transceiver frequency synthesizer and method thereof
One. technical field
The present invention relates to a kind of TD-SCDMA/GSM of being applicable to UE bimodulus multiband transceiver frequency synthesizer and method thereof, belong to the mobile communication system technical field, be specifically related to 3-G (Generation Three mobile communication system).
Two. background technology
Bimodulus multiband transceiver frequency synthesizer is one of new problem of putting forward in the evolution of third generation TD-SCDMA mobile communication of second generation GSM mobile communication.As everyone knows, second generation gsm communication system is the huge communication network that has had tens million of users.When development third generation TD-SCDMA mobile communication, must adopt the strategy of smooth evolution.For this reason, when design TD-SCDMAUE bimodulus multiband transceiver frequency synthesizer, the requirement of the compatible GSM UE frequency range transceiver frequency synthesizer of necessary energy.Promptly satisfy TD-SCDMAUE at 1880-1920MHz, 2010-2025MHz, during 2300-2400MHz frequency range transmitting-receiving work to the requirement of local oscillation signal; Simultaneously, also want to satisfy GSM UE the 890-915MHz band transmit and when the 935-960MHz frequency range receives to the requirement of local oscillation signal.
In second generation GSM mobile communication, similar multiband transceiver frequency synthesizer, the frequency synthesizer circuit of the UAA3535HL low-power consumption monolithic GSM/DCS multiband transceiver that provides as Philis semiconductor company is one of Cui circuit arrangement of utilization at present, and circuit block diagram is asked for an interview accompanying drawing 1.Its integrated level height is its advantage, still, is not difficult to find out from accompanying drawing 1, realize reception and the emission of GSM/DCS, its operating frequency range: GSM and DCS receive and are respectively 935-960MHz, 1805-1880MHz, emission then is respectively 890-915MHz, 1710-1785MHz.This requires narrow a lot than TD-SCDMA/GSMUE frequency range, for realizing the reception of GSM/DCS, used a received RF phase-locked loop frequency synthesizer to produce RF out1 signal as receiving local oscillation signal, and the emission that will realize GSM/DCS received RF phase-locked loop frequency synthesizer not only, the IR-PLL frequency synthesizer will be worked, but also need make simultaneously by the received RF phase-locked loop frequency synthesizer produce IFout that RF out1 and IR-PLL frequency synthesizer produce through " phase demodulation controller B " the sending out a phase-locked loop operation and could realize of phase demodulation control.And at this moment the emission VCO of GSM and DCS is still independent separately and can not be shared.The reception and the emission that realize GSM/DCS like this just need three phase-locked loops and external 3 corresponding radio frequency VCO and an intermediate frequency VCO.And energy support performance standard and working frequency range are limited, and circuit is comparatively complicated.
Three. summary of the invention
The objective of the invention is the required frequency synthesizer circuit of TD-SCDMA UE and GSM UE is combined, realize its TD-SCVDMA/GSM UE bimodulus multiband reception and launch required local oscillation signal and intermediate frequency local oscillator signal with minimum hardware platform resource, to realize reception and transmission respective radio-frequency signals.
For reaching above-mentioned purpose technical scheme of the present invention be:
The apparatus for frequency synthesizing of bimodulus multiband transceiver comprises a reference oscillator 201, one parametric frequency dividers 206, one phase discriminator A202, a loop filter A203, a voltage controlled oscillator A204, one removes 2 circuit A205, a variable frequency divider A207, a switching circuit K208, one phase discriminator B210, one loop filter B211, a voltage controlled oscillator B212, one removes 2 circuit B213, one variable frequency divider B214, an analog baseband circuitry ABB209; Implementing control by analog baseband circuitry by its parametric frequency divider of control pair, variable frequency divider A, switching circuit K then can produce TD-SCDMA/GSM UE reception and launch required radio-frequency (RF) local oscillator signal RF OUTAnd implement control by its parametric frequency divider of control pair and variable frequency divider B by analog baseband circuitry, then can produce TD-SCDMA/GSM UE reception and launch required intermediate frequency local oscillator signal IF OUT
The implementation method of the apparatus for frequency synthesizing of bimodulus multiband transceiver is that when TD-SCDMA/GSMUE is operated in tdd mode, at 1880-1920MHz, when the 2010-2025MHz frequency range received, output frequency should be RF OUT=f RX-TSM+ f IF-TSM-RXAnd when the 2300-2400MHz frequency range received, the radio frequency output frequency should be RF OUT=f RX-TSM-f IF-TSM-RXWherein, f RY-TSMBe TD-SCDMA UE received signal frequency; f IF-TSM-RXIF-FRE for TD-SCDMA UE receiver.
When TD-SCDMA/GSM UE is operated in fdd mode, when the 935-960MHz frequency range received, the radio frequency output frequency should be RF OUT=f RX-GSM+ f IF-GSM-RXWherein, f RX-GSMBe GSMUE received signal frequency; f IF-GSM-RXBe GSM UE receiver IF-FRE.
When TD-SCDMA/GSM UE is operated in tdd mode, at 1800-1920MHz; During the 2010-2025MHz band transmit, the radio frequency output frequency should be RF OUT=f TX-TSM+ f IF-TSM, and when the 2300-2400MHz band transmit, the radio frequency output frequency then should be RF OUT=f TX-TSM-f IF-TSM-TXWherein, f TX-TSMBe TD-SCDMA UE transmitting carrier frequency frequency, f IF-TSM-TXBe TD-SCDMA UE transmitter IF-FRE.
When TD-SCDMA/GSM UE is operated in fdd mode, when the 890-915MHz band transmit, the radio frequency output frequency should be RF OUT=f TX-GSM+ f IF-GSM-TXWherein, f TX-GSMBe GSM UE transmitting carrier frequency frequency, f IF-GSM-TXBe GSM UE transmitter IF-FRE.
The present invention has utilized a RF Phase-Lock Loop frequency synthesizer, an IR-PLL frequency synthesizer, one is removed 2 circuit A and one and the switching circuit K that is in parallel except that 2 circuit A, realized that TD-SCDMAUE and GSM UE receive and required radio-frequency (RF) local oscillator and intermediate frequency local oscillator signal during emission, simple in structure feasible.
The present invention is further illustrated below in conjunction with accompanying drawing.
Four. description of drawings
Fig. 1 is a UAA3535HL GSM/DCS transceiver frequency combiner circuit block diagram
Fig. 2 is that signal frequency of the present invention produces electric theory diagram
Five. embodiment
TD-SCDMA/GSM UE apparatus for frequency synthesizing at first should satisfy TD-SCDMA UE at 1880-1920MHz; Three frequency ranges of 2010-2025MHz and 2300-2400MHz receive and during emission to the requirement of local oscillation signal.Simultaneously, in order to realize second generation gsm communication system to the 3-G (Generation Three mobile communication system) smooth evolution, its apparatus for frequency synthesizing also should satisfy GSM UE the 890-915MHz frequency range send and when the 935-960MHz frequency range receives to the requirement of local oscillation signal.For this reason, selecting and reception and the emission medium-frequency of definite TD-SCDMA UE and GSM UE: f IX-TSM-RX, f IF-TSM-TXf IF-GSM-TX, f IF-GSM-TXThe basis on; Utilize received signal and the interpolation of receiving local oscillation signal or heterodyne relation; And when utilizing TD-SCDMA UE and GSM UE emission, its intermediate-freuqncy signal is the relation of utilizing the emission of frequency conversion upper side band signal or utilizing the emission of frequency conversion lower sideband signal when sending out a local oscillation signal and carry out frequency conversion; Simultaneously, when TD-SCDMA UE works, utilize the control of analog baseband circuitry ABB, make switching circuit K closure switching circuit K.At this moment, analog baseband circuitry ABB if by DATA, CLOCK, three control lines of ENABLE. with the reception of correspondence or send channel " with reference to frequency dividing ratio ÷ R " and " variable division is than ÷ N-RF " send into relevant register, the output RF of its apparatus for frequency synthesizing OUTThen can produce and satisfy TD-SCDMA UE reception or send required local oscillation signal.Equally, when GSM UE works, utilize the control of analog baseband circuitry ABB to switching circuit K, make switching circuit K open circuit, at this moment, analog baseband circuitry ABB if the reception by DATA, CLOCK, ENABLE three bus correspondences or launch radio frequency channel " with reference to frequency dividing ratio ÷ R " and " variable division is than ÷ N-RF " send into relevant register, the output RF of its apparatus for frequency synthesizing OUTThen can produce and satisfy GSM UE reception or send required radio-frequency (RF) local oscillator signal.In a word, by " analog baseband circuitry ABB " to " parametric frequency divider ÷ R ", " variable frequency divider ÷ N-RF " and to " switching circuit K " control can realize shared one of TD-SCDMA/GSM UE " voltage controlled oscillator A " its frequency is covered as 2070-2246MHz;
Equally, if by DATA, CLOCK, ENABLE three buses to " parametric frequency divider ÷ R " and to " variable frequency divider ÷ N-IF " control, voltage controlled oscillator B at this moment " " then can produce respectively TD_SCDMA UE and GSM receive or launch required 4 times to the local oscillation signal of intermediate frequency.Its frequency is covered as 652-760MHz.
If after the sending and receiving intermediate frequency of TD-SCDMA UE and GSM UE was determined respectively, then the radio frequency of this TD-SCDMA/GSM UE bimodulus multiband transceiver frequency synthesizer was exported RF OUTCan be calculated as follows:
1) under tdd mode, when receiving in 1880-1920MHz and 2010-2025MHz frequency range as if TD-SCDMAUE, receiver adopts the heterodyne scheme, and then the output frequency of apparatus for frequency synthesizing should be RF OUT=f RX-TSM+ f IF-TSM-RXIf f FI-TSM-RX=190MHz, then the frequency coverage of apparatus for frequency synthesizing should be 2070-2110MHz respectively; 2200-2215MHz.
2) under tdd mode, when receiving in the 2300-2400MHz frequency range as if TD-SCDMA UE, receiver adopts the interpolation scheme, and then the output frequency of apparatus for frequency synthesizing should be RF Out=f RX-TSM-f IF-TSM-RXIf f IF-TSM-RX=190MHz, then the frequency coverage of apparatus for frequency synthesizing should be 2110-2210MHz respectively.
3) under tdd mode, when sending in 1880-1920MHz and 2010-2025MHz frequency range as if TD-SCDMA UE, transmitter adopts frequency conversion lower sideband delivery plan, and then the output frequency of apparatus for frequency synthesizing should be RF OUT=f TX-TSM+ f IF-TSM-RXIf f IF-TSM-TX=190MHz, then the frequency coverage of apparatus for frequency synthesizing should be 2070-2110MHz respectively; 2200-2215MHz.
4) under tdd mode, when launching in the 2300--2400MHz frequency range as if TD-SCDMA UE, transmitter adopts frequency conversion upper sideband launch scenario, and then the output frequency of apparatus for frequency synthesizing should be RF Out=f TX-RSM-f IF-TSM-TXIf f IF-TSM-TX=190MHz, then the frequency coverage of apparatus for frequency synthesizing should be 2110--2210MHz respectively.
5) under fdd mode, when receiving in the 935-960MHz frequency range as if GSM UE, receiver adopts the heterodyne scheme, and then the output frequency of apparatus for frequency synthesizing should be RF Out=f RX-GSM+ f IF-GSM-RXIf f IF-GSM-RX=163MHz, then the output frequency coverage of apparatus for frequency synthesizing should be 1098--1123MHz
6) under fdd mode, when launching in the 890-915MHz frequency range as if GSM UE, transmitter adopts frequency conversion lower sideband delivery plan, and then the output frequency of apparatus for frequency synthesizing should be RF Out=f TX-GSM+ f IF-GSM-TXIf f IF-GSM-TX=163MHz, then the output frequency coverage of apparatus for frequency synthesizing should be 1053--1078MHz.
From above-mentioned results of calculation, find out maximum and minimum value that RF Voltage-Controlled Oscillator A frequency covers, satisfy 2070-2246MHz as long as then can draw the frequency lock-in range of RF Phase-Lock Loop frequency synthesizer; As long as and the frequency lock-in range of IR-PLL frequency synthesizer then can satisfy the reception of TD-SCDMA/GSM UE bimodulus multiband transceiver and launch required radio frequency and the requirement of intermediate frequency local oscillator signal when satisfying 652-760MH.

Claims (6)

1. the apparatus for frequency synthesizing of a bimodulus multiband transceiver is characterized in that comprising a reference oscillator 201, one parametric frequency dividers 206, one phase discriminator A202, a loop filter A203, a voltage controlled oscillator A204, one removes 2 circuit A205, a variable frequency divider A207, a switching circuit K208, one phase discriminator B210, one loop filter B211, a voltage controlled oscillator B212, one removes 2 circuit B213, one variable frequency divider B214, an analog baseband circuitry ABB209.
2. the method for the apparatus for frequency synthesizing of a bimodulus multiband transceiver is characterized in that implementing control by analog baseband circuitry by its parametric frequency divider of control pair, variable frequency divider A, switching circuit K then can produce the TD-SCDMA/GSMUE reception and launch required radio-frequency (RF) local oscillator signal R FOUTAnd implement control by its parametric frequency divider of control pair and variable frequency divider B by analog baseband circuitry, then can produce TD-SCDMA/GSM UE reception and launch required intermediate frequency local oscillator signal IF OUT
3. method as claimed in claim 2 is characterized in that being operated in tdd mode as TD-SCDMA/GSM UE, and at 1880-1920MHz, when the 2010-2025MHz frequency range received, output frequency should be RF OUT=f RX-TSM+ f IF-TSM-RXAnd when the 2300-2400MHz frequency range received, the radio frequency output frequency should be RF OUT=f RX-TSM-f IF-TSM-RXWherein, f RX-TSMBe TD-SCDMAUE received signal frequency; f IF-TSM-RXIF-FRE for TD-SCDMA UE receiver.
4. method as claimed in claim 2 is characterized in that, when TD-SCDMA/GSMUE is operated in fdd mode, when the 935-960MHz frequency range received, the radio frequency output frequency should be RF OUT=f RX-GSM+ f IF-GSM-RXWherein, f RX-GSMBe GSMUE received signal frequency; f IF-GSM-RXBe GSM UE receiver IF-FRE.
5. method as claimed in claim 2 is characterized in that, when TD-SCDMA/GSM UE is operated in tdd mode, at 1800-1920MHz; During the 2010-2025MHz band transmit, the radio frequency output frequency should be RF OUT=f TX-TXM+ f IF-TSM, and when the 2300-2400MHz band transmit, the radio frequency output frequency then should be RF OUT=f TX-TSM-f IF-TSM-TXWherein, f TX-TSMBe TD-SCDMA UE transmitting carrier frequency frequency, f IF-TSM-TXBe TD-SCDMAUE transmitter IF-FRE.
6. method as claimed in claim 2 is characterized in that, when TD-SCDMA/GSM UE is operated in fdd mode, when the 890-915MHz band transmit, the radio frequency output frequency should be RF OUT=f TX-GSM+ f IF-GSM-TXWherein, f TX-GSMBe GSM UE transmitting carrier frequency frequency, f IF-GSM-TXBe GSM UE transmitter IF-FRE.
CNA031172776A 2003-01-29 2003-01-29 Frequency synthesis device for dual mode multiple frequency range transceiver and method thereof Pending CN1522089A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008011798A1 (en) * 2006-07-19 2008-01-31 Datang Mobile Communications Equipment Co., Ltd Method and device for initial synchronisation between gsm system and td-scdma system
CN102104392A (en) * 2010-12-15 2011-06-22 华为技术有限公司 Multi-band multi-channel transceiving device and method as well as base station system
CN102316553A (en) * 2010-07-02 2012-01-11 开曼晨星半导体公司 Multimode operation mode in mobile telecommunication device
CN102497207A (en) * 2011-11-25 2012-06-13 广州易茂科技发展有限公司 Multipath high-precision low frequency difference clock source
WO2015043409A1 (en) * 2013-09-29 2015-04-02 芯迪半导体科技（上海）有限公司 Multi-band transceiver for wireless system
CN106688188A (en) * 2014-05-28 2017-05-17 高通股份有限公司 Reconfigurable multi-mode transceiver

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008011798A1 (en) * 2006-07-19 2008-01-31 Datang Mobile Communications Equipment Co., Ltd Method and device for initial synchronisation between gsm system and td-scdma system
CN101110633B (en) * 2006-07-19 2011-08-31 电信科学技术研究院 Method and device for initial synchronization between GSM system and TD-SCDMA system
CN102316553A (en) * 2010-07-02 2012-01-11 开曼晨星半导体公司 Multimode operation mode in mobile telecommunication device
TWI455511B (en) * 2010-07-02 2014-10-01 Mstar Semiconductor Inc Method of multimode operation in mobile telecommunication device
US9369156B2 (en) 2010-12-15 2016-06-14 Huawei Technologies Co., Ltd. Multi-band multi-path receiving and transmitting device and method, and base station system
CN102104392B (en) * 2010-12-15 2013-10-09 华为技术有限公司 Multi-band multi-channel transceiving device and method as well as base station system
WO2011137670A1 (en) * 2010-12-15 2011-11-10 华为技术有限公司 Multi-frequency band multiplexing transceiving device, method and base station system thereof
US9124311B2 (en) 2010-12-15 2015-09-01 Huawei Technologies Co., Ltd. Multi-band multi-path receiving and transmitting device and method, and base station system
US9130604B2 (en) 2010-12-15 2015-09-08 Huawei Technologies Co., Ltd. Multi-band multi-path receiving and transmitting device and method, and base station system
US9148178B2 (en) 2010-12-15 2015-09-29 Huawei Technologies Co., Ltd. Multi-band multi-path receiving and transmitting device and method, and base station system
CN102104392A (en) * 2010-12-15 2011-06-22 华为技术有限公司 Multi-band multi-channel transceiving device and method as well as base station system
US10826555B2 (en) 2010-12-15 2020-11-03 Huawei Technologies Co., Ltd. Multi-band multi-path receiving and transmitting device and method, and base station system
CN102497207A (en) * 2011-11-25 2012-06-13 广州易茂科技发展有限公司 Multipath high-precision low frequency difference clock source
WO2015043409A1 (en) * 2013-09-29 2015-04-02 芯迪半导体科技（上海）有限公司 Multi-band transceiver for wireless system
CN106688188A (en) * 2014-05-28 2017-05-17 高通股份有限公司 Reconfigurable multi-mode transceiver
CN106688188B (en) * 2014-05-28 2019-08-23 高通股份有限公司 Reconfigurable multi-mode transceiver

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