CN101207389A - Method and system for receiving and/or sending signals via a radio communication media - Google Patents

Abstract

Aspects of a method and system for processing signals in a high performance receive chain may include amplifying radio frequency signals in amplifier chains in a multistandard radio frequency front-end, comprising one or more shared processing stages, and combining, with substantially equal gain, a number of phase-shifted radio frequency signals of the radio frequency signals into substantially equal-gain-combined radio frequency signals. The substantially equal-gain-combined radio frequency signals may be demodulated to obtain inphase channels and quadrature channels. A number of inphase channels and quadrature channels may be processed in I-channel processing blocks and Q-channel processing blocks to generate an output analog baseband signal. The multistandard radio frequency front-end may be capable of processing Bluetooth(R) signals and Wireless Local Area Network (WLAN) signals. The amplifier chains may comprise a first amplifier and a second amplifier, where the first amplifier may be shared between Bluetooth(R) signal processing paths and WLAN signal processing paths.

Description

A kind of method and system that receives and/or send signal by radio communication media

Technical field

The present invention relates to the power amplification (electronic power amplification) of electronic device, more particularly, enforcement of the present invention relates to a kind of single-chip WLAN of single COMS substrate and method and system of bluetooth radio of being positioned at.

Background technology

When that move, wireless and/or handheld portable devices became multi-functional, " incorporate " communication equipment gradually, the integrated function of these handheld portable devices was increasingly extensive, thereby is used to handle various wireless communication services.For example, single handheld portable devices can realize that Bluetooth communication communicates by letter with wireless lan (wlan).

Many front-end processings that are used for radio communication service are all finished at analog circuit.Front-end processing in the portable set can comprise sequence of operations, comprises received RF (RF) signal (generally receiving by the antenna that communicates to connect with portable set).The receiver task of carrying out on the RF signal can comprise such as down conversion (downconvert), filtering and analog-to-digital conversion (ADC).Consequential signal (resulting signal) can be described as baseband signal.Baseband signal generally comprises digital signal, can handle it in the digital circuit in portable set subsequently.

Front-end processing in the portable set also can comprise transmission RF signal.The transmission task of carrying out on baseband signal can comprise such as digital-to-analogue conversion (DAC), filtering, frequency up-conversion (upconvert) and power amplification (PA).The RF signal of power amplification is the antenna transmission by communicating to connect with described portable set generally.Being used to receive the RF signal on portable set can be the same antenna that is used for sending from portable set the RF signal, also is not.

The diversification day by day of radio communication service in the single portable set, will bring following limitation inevitably in its evolution: the analog circuit that is used for each independent radio communication service will be integrated in single integrated circuit (IC) equipment (or chip).This may cause these portable sets many defective and/or limitation to occur.For example, increasing number of chips will limit the miniaturization of the volume of these portable sets.Like this, the combination property of Zeng Jiaing will cause the bulky of equipment day by day, incompatibility client's selection.Owing to the auxiliary circuit that duplicates that need link to each other with each RF IC, the quantity of chip also will further increase.For example, each RF IC needs independent low noise amplifier (LNA) circuit, independent PA circuit and independent crystal oscillator (XO) circuit, is used to generate clock and the timing signal of each RF IC.Same duplicating also can occur in digital IC equipment, and these digital IC equipment are used to handle the baseband signal from independent radio communication service.

Along with the increase gradually of IC component count, the power consumption in the portable set also can correspondingly increase.This another group defective may occur, as the operating temperature that rises, and in service time of the battery that shortens.

Each feature that compares the follow-up system that will introduce in conjunction with the accompanying drawings of the present invention, other limitation and drawback existing and conventional art are conspicuous for the person of ordinary skill of the art.

Summary of the invention

The invention provides a kind of single-chip WLAN on single COMS layer and method and system of bluetooth radio of being used for, below in conjunction with at least one width of cloth accompanying drawing carried out representing fully and describing, and obtained more complete elaboration in the claims.

According to an aspect of the present invention, provide a kind of system that is used for by the radio communication media received signal, described system comprises:

Be positioned at least one wireless local area network receiver circuit of single-chip substrate, be used to receive wireless lan signal;

Be positioned at least one Bluetooth Receiver circuit of the described substrate of described single-chip, be used to receive Bluetooth signal; And

Described at least one wireless local area network receiver circuit and described at least one Bluetooth Receiver circuit use at least one shared amplifier circuit in low noise, and described at least one shared amplifier circuit in low noise can be used for receiving described wireless lan signal and is used to receive described Bluetooth signal.

Preferably, described at least one wireless local area network receiver circuit is by joining from the output of described at least one shared amplifier circuit in low noise and the input coupling of described at least one wireless local area network receiver circuit, to realize the described reception of described wireless lan signal.

Preferably, described at least one wireless local area network receiver circuit is made down conversion by using the WLAN (wireless local area network) local oscillator signals with the described wireless lan signal that receives, to realize the reception of described wireless lan signal, the frequency of wherein said WLAN (wireless local area network) local oscillator signals is selected from the WLAN (wireless local area network) frequency band.

Preferably, described system further comprises single crystal-oscillator circuit, is used to generate described WLAN (wireless local area network) local oscillator signals and described bluetooth local oscillator signals.

Preferably, described system further comprises the WLAN (wireless local area network) phase-locked loop circuit, the signal and the WLAN (wireless local area network) divisor input value that are used for generating based on described single crystal-oscillator circuit generate the voltage controlled oscillator signal, said WLAN (wireless local area network) divisor input value comprise with in the lower part at least one or all: integer and mark.

Preferably, described system further comprises at least one divider circuit and at least one mixer, is used for generating described WLAN (wireless local area network) local oscillator signals based on the voltage controlled oscillator signal of described generation.

Preferably, described at least one Bluetooth Receiver circuit is by joining from the output of described at least one shared amplifier circuit in low noise and the input coupling of described at least one Bluetooth Receiver circuit, to realize the described reception of described Bluetooth signal.

Preferably, described at least one Bluetooth Receiver circuit is made down conversion by using the bluetooth local oscillator signals with the described Bluetooth signal that receives, to realize the reception of described Bluetooth signal, the frequency of wherein said bluetooth local oscillator signals is selected from bluetooth frequency band.

Preferably, described system further comprises single crystal-oscillator circuit, is used to generate described bluetooth local oscillator signals and described WLAN (wireless local area network) local oscillator signals.

Preferably, described system further comprises the bluetooth phase-locked loop circuit, the signal and the bluetooth divisor input value that are used for generating based on described single crystal-oscillator circuit generate the voltage controlled oscillator signal, said bluetooth divisor input value comprise with in the lower part at least one or all: integer and mark.

Preferably, described system further comprises at least one divider circuit and at least one mixer, is used for generating described bluetooth local oscillator signals based on the voltage controlled oscillator signal of described generation.

According to an aspect of the present invention, provide a kind of system that is used for sending by radio communication media signal, described system comprises:

Be positioned at least one wireless LAN transmitter circuit of single-chip substrate, be used to send wireless lan signal;

Be positioned at least one bluetooth transmitters circuit of the described substrate of described single-chip, be used to send Bluetooth signal; And

Described at least one wireless LAN transmitter circuit and described at least one bluetooth transmitters circuit use at least one shared power amplifier circuit, and described at least one shared power amplifier circuit can be used for sending described wireless lan signal and is used to send described Bluetooth signal.

Preferably, described at least one wireless LAN transmitter circuit is by joining from the output of described at least one wireless LAN transmitter circuit and the input coupling of described at least one shared power amplifier, to realize the described transmission of described wireless lan signal.

Preferably, described at least one wireless LAN transmitter circuit is made frequency up-conversion by the input signal that uses the WLAN (wireless local area network) local oscillator signals will be derived from baseband signal, to realize the transmission of described wireless lan signal, the frequency of said WLAN (wireless local area network) local oscillator signals is selected from the WLAN (wireless local area network) frequency band.

Preferably, described system further comprises single crystal-oscillator circuit, is used to generate described WLAN (wireless local area network) local oscillator signals and described bluetooth local oscillator signals.

Preferably, described system further comprises the WLAN (wireless local area network) phase-locked loop circuit, the signal and the WLAN (wireless local area network) divisor input value that are used for generating based on described single crystal-oscillator circuit generate the voltage controlled oscillator signal, said WLAN (wireless local area network) divisor input value comprise with in the lower part at least one or all: integer and mark.

Preferably, described system further comprises at least one divider circuit and at least one mixer, is used for generating described WLAN (wireless local area network) local oscillator signals based on the voltage controlled oscillator signal of described generation.

Preferably, described at least one bluetooth transmitters circuit is by joining from the output of described at least one bluetooth transmitters circuit and the input coupling of described at least one shared power amplifier, to realize the described transmission of described Bluetooth signal.

Preferably, described at least one bluetooth transmitters circuit is made frequency up-conversion by the input signal that uses the bluetooth local oscillator signals will be derived from baseband signal, to realize the transmission of described Bluetooth signal, the frequency of wherein said bluetooth local oscillator signals is selected from bluetooth frequency band.

Preferably, described system further comprises single crystal-oscillator circuit, is used to generate described bluetooth local oscillator signals and described WLAN (wireless local area network) local oscillator signals.

Preferably, described system further comprises the bluetooth phase-locked loop circuit, the signal and the bluetooth divisor input value that are used for generating based on described single crystal-oscillator circuit generate the voltage controlled oscillator signal, wherein said bluetooth divisor input value comprise with in the lower part at least one or all: integer and mark.

Preferably, described system further comprises at least one divider circuit and at least one mixer, is used for generating described bluetooth local oscillator signals based on the voltage controlled oscillator signal of described generation.

According to an aspect of the present invention, provide a kind of system that is used to be provided with circuit, described system comprises:

Be positioned at least one resistor checking circuit of single-chip substrate, be used for generating at least one code word, the reception that described grid current can be from WLAN (wireless local area network) bandgap reference circuit and bluetooth bandgap reference circuit based at least one grid current;

Described WLAN (wireless local area network) bandgap reference circuit generates at least one WLAN (wireless local area network) grid current signal based at least one code word of described generation;

Described bluetooth bandgap reference circuit generates at least one bluetooth grid current signal based at least one code word of described generation.

Preferably, described at least one WLAN (wireless local area network) grid current signal is used for receiving wireless lan signal by at least one the wireless local area network receiver circuit that is positioned at the described substrate of described single-chip.

Preferably, described at least one bluetooth grid current signal is used for receiving Bluetooth signal by at least one the Bluetooth Receiver circuit that is positioned at the described substrate of described single-chip.

Preferably, described at least one resistor checking circuit is used to measure the voltage that described at least one grid current causes through the variable resistance that is positioned at the described substrate of described single-chip.

Preferably, described at least one resistor checking circuit voltage is used for the resistance of relatively regulating described variable resistance based on following, and the described magnitude of voltage that relatively to be described at least one grid current cause through described variable resistance and described at least one grid current are passed through the comparison between the magnitude of voltage that calibrating resistor causes.

Preferably, described at least one resistor checking circuit is used for generating described code word according to the adjustment to the resistance of described variable resistance.

According to an aspect of the present invention, provide a kind of method by the radio communication media received signal, described method comprises:

Receive wireless lan signal at least one the wireless local area network receiver circuit that is arranged in the single-chip substrate;

Receive Bluetooth signal at least one the Bluetooth Receiver circuit that is arranged in the single-chip substrate;

By using at least one shared low noise amplifier circuit, receive described wireless lan signal and described Bluetooth signal in one or two in following equipment: described at least one wireless local area network receiver circuit and described at least one Bluetooth Receiver circuit at described single-chip substrate.

Preferably, described method further comprises by with the output of described at least one shared low noise amplifier circuit and the input coupling connection of described at least one wireless local area network receiver circuit, receives described wireless office net signal.

Preferably, described method further comprises by using the WLAN (wireless local area network) local oscillator signals that the described wireless lan signal that receives is made down conversion, realize the reception of described wireless lan signal, the frequency of said WLAN (wireless local area network) local oscillator signals is selected from the WLAN (wireless local area network) frequency band.

Preferably, described method further comprises described WLAN (wireless local area network) local oscillator signals of generation and described bluetooth local oscillator signals.

Preferably, described method comprises that further the signal and the WLAN (wireless local area network) divisor input value that generate based on described single crystal-oscillator circuit generate the voltage controlled oscillator signal, wherein said WLAN (wireless local area network) divisor input value comprise with in the lower part at least one or all: integer and mark.

Preferably, described method comprises that further the voltage controlled oscillator signal based on described generation generates described WLAN (wireless local area network) local oscillator signals.

Preferably, described method further comprises by with the output of described at least one shared low noise amplifier circuit and the input coupling connection of described at least one Bluetooth Receiver circuit, receives described Bluetooth signal.

Preferably, described method comprises further that by using the bluetooth local oscillator signals that the described Bluetooth signal that receives is made down conversion realize the reception of described Bluetooth signal, the frequency of wherein said bluetooth local oscillator signals is selected from bluetooth frequency band.

Preferably, described method further comprises described bluetooth local oscillator signals of generation and described WLAN (wireless local area network) local oscillator signals.

Preferably, described method comprises that further the signal and the bluetooth divisor input value that generate based on described single crystal-oscillator circuit generate the voltage controlled oscillator signal, described bluetooth divisor input value comprise with in the lower part at least one or all: integer and mark.

Preferably, described method comprises that further the voltage controlled oscillator signal based on described generation generates described bluetooth local oscillator signals.

According to an aspect of the present invention, a kind of system by radio communication media transmission and/or received signal is provided, described system comprises: be positioned at least one circuit of single-chip substrate, be used for generating WLAN (wireless local area network) local oscillator signals and bluetooth local oscillator signals according to the input signal that receives from single crystal-oscillator circuit.

Preferably, described system further comprises the WLAN (wireless local area network) phase-locked loop circuit, the signal and the WLAN (wireless local area network) divisor input value that are used for generating based on described monocrystal pierce circuit generate the voltage controlled oscillator signal, wherein said WLAN (wireless local area network) divisor input value comprise with in the lower part at least one or all: integer and mark.

Preferably, described system further comprises the bluetooth phase-locked loop circuit, the signal and the bluetooth divisor input value that are used for generating based on described single crystal-oscillator circuit generate the voltage controlled oscillator signal, wherein said bluetooth divisor input value comprise with in the lower part at least one or all: integer and mark.

According to an aspect of the present invention, provide a kind of system by radio communication media transmission and received signal, described system comprises: the WLAN (wireless local area network) bandgap reference circuit and the bluetooth bandgap reference circuit that are positioned at the single-chip substrate.

According to an aspect of the present invention, a kind of system by radio communication media transmission and/or received signal is provided, described system comprises: be positioned at the low-power oscillator circuit of single-chip substrate, be used to wireless local area network receiver, wireless LAN transmitter, Bluetooth Receiver and bluetooth transmitters generation system timing signal.

According to an aspect of the present invention, provide a kind of system by radio communication media transmission and/or received signal, described system comprises:

Be positioned at single on-chip circuit of single-chip integrated, at least one under described circuit of single-chip integrated comprises in the column circuits:

The low-power oscillator circuit is used to wireless local area network receiver, wireless LAN transmitter, Bluetooth Receiver and bluetooth transmitters generation system timing signal;

WLAN (wireless local area network) bandgap reference circuit and bluetooth bandgap reference circuit;

At least one circuit is used for generating WLAN (wireless local area network) local oscillator signals and bluetooth local oscillator signals according to the input signal that receives from single crystal-oscillator circuit;

Amplifier circuit in low noise is used to receive wireless lan signal and is used to receive Bluetooth signal;

Power amplifier circuit is used to send wireless lan signal and is used to send Bluetooth signal; And

The resistor calibration circuit is used for generating at least one code word based at least one grid current, and described grid current is received from the following circuit: described WLAN (wireless local area network) bandgap reference circuit and bluetooth bandgap reference circuit.

According to an aspect of the present invention, a kind of method by radio communication media transmission and/or received signal is provided, and described method comprises according to the input signal generation WLAN (wireless local area network) local oscillator signals and the bluetooth local oscillator signals that receive from single crystal-oscillator circuit.

Preferably, described method comprises that further the signal and the WLAN (wireless local area network) divisor input value that generate based on described single crystal oscillating circuit generate the voltage controlled oscillator signal, wherein said WLAN (wireless local area network) divisor input value comprise with in the lower part at least one or all: integer and mark.

Preferably, described method comprises that further the signal and the bluetooth divisor input value that generate based on described single crystal oscillating circuit generate the voltage controlled oscillator signal, wherein said bluetooth divisor input value comprise with in the lower part at least one or all: integer and mark.

Various advantage of the present invention, various aspects and character of innovation, and the details of the embodiment of example shown in it will describe in detail in following description and accompanying drawing.

Description of drawings

Fig. 1 is the schematic block diagram according to the portable terminal of the embodiment of the invention, and described portable terminal comprises and is positioned at single CMOS substrate single-chip WLAN and bluetooth radio;

Fig. 2 A is the schematic block diagram according to the shared low noise amplifier circuit of the single-chip WLAN of the single CMOS substrate of being arranged in of the embodiment of the invention and bluetooth radio;

Fig. 2 B is the WLAN on the monocrepid (single substrate) according to the embodiment of the invention and the schematic block diagram of Bluetooth circuit;

Fig. 3 is according to the single-chip WLAN of the single CMOS substrate of the embodiment of the invention and the schematic block diagram of the shared crystal-oscillator circuit in the bluetooth radio;

Fig. 4 A is the schematic block diagram according to the shared grid current calibration circuit in the single-chip WLAN of the single CMOS substrate of the embodiment of the invention and the bluetooth radio;

Fig. 4 B is according to the single-chip WLAN of the single CMOS substrate of the embodiment of the invention and the schematic block diagram of the resistance calibration circuit in the bluetooth radio;

Fig. 5 is according to the single-chip WLAN of the single CMOS substrate of the embodiment of the invention and the schematic block diagram of the common circuit in the bluetooth radio.

Embodiment

Embodiments of the invention relate to the single-chip WLAN that is positioned at single COMS substrate and the method and system of bluetooth radio.Various embodiment of the present invention is included in integrated WLAN analog circuit on the single COMS IC, WLAN digital circuit, bluetooth (BT) analog circuit, and the BT digital circuit, describedly is integrated in single semiconductor chip and realizes.Can use the common circuit that can be used for WLAN and BT front-end processing at integrated WLAN of single CMOS substrate and BT circuit.For example, single LNA circuit can be used for receiving WLAN and BT signal, and single PA circuit also can be used for WLAN and BT front-end processing, and single XO circuit can be used for generating transmission and receives WLAN and the required timing signal of BT signal.

Fig. 1 is the schematic block diagram according to the portable terminal of the embodiment of the invention, and this moves and comprises single-chip WLAN and the bluetooth radio that is positioned at single CMOS substrate.With reference to Fig. 1, show portable terminal 120, this terminal 120 comprises WLAN and BT (WLAN/BT) receiver 123a, WLAN and BT reflector 123b, WLAN digital baseband processor 129a, BT digital baseband processor 129b, processor 125 and memory 127.In certain embodiments of the present invention, for example WLAN/BT receiver 123a and WLAN/BT reflector 123b can be integrated into WLAN/BT transceiver 122.Single transmission and reception antenna 121 can communicate to connect with WLAN/BT receiver 123a and WLAN/BT reflector 123b.The equipment that interchanger 124 or other have function of exchange is connected between WLAN/BT receiver 123a and the WLAN/BT reflector 123b, is used for switched antenna 121 between reception and sending function.

WLAN/BT receiver 123a can comprise suitable logic, circuit and/or code, is used to handle the WLAN RF signal and/or the BT RF signal that receive.WLAN/BT receiver 123a can be used for the interior RF signal that is used by WLAN and/or BT communication system of frequency acceptance band.

WLAN digital baseband processor 129a can comprise suitable logic, circuit and/or code, is used for handling and/or safeguarding the WLAN baseband signal.In this, WLAN digital baseband processor 129a can handle or safeguard WLAN signal that receives from WLAN/BT receiver 123a and/or the WLAN signal that will be sent to WLAN/BT reflector 123b, thereby sends by radio communication media.WLAN digital baseband processor 129a also can provide control and/or feedback information to WLAN/BT receiver 123a and WLAN/BT reflector 123b based on the information from treated WLAN signal.WLAN digital baseband processor 129a can be sent to processor 125 and/or memory 127 with information and/or the data from treated WLAN signal.In addition, WLAN digital baseband processor 129a can receive from processor 125 and/or be sent to the information of memory 127, and described information can be processed and be sent to WLAN/BT reflector 123b, to transmit the WLAN signal by radio communication media.

BT digital baseband processor 129b can comprise suitable logic, circuit and/or code, is used for handling and/or safeguarding the BT baseband signal.In this, BT digital baseband processor 129b can handle or manage BT signal that receives from WLAN/BT receiver 123a and/or the BT signal that will be sent to WLAN/BT reflector 123b, to send by radio communication media.BT digital baseband processor 129b can provide control and/or feedback information to WLAN/BT receiver 123a and WLAN/BT reflector 123b based on the information from treated BT signal.BT digital baseband processor 129b can send information and/or data from treated BT signal to processor 125 and/or memory 127.In addition, BT digital baseband processor 129b can receive from processor 125 and/or be sent to the information of memory 127, and described information will be sent to WLAN/BT reflector 123b after treatment, to transmit the BT signal by radio communication media.

WLAN/BT reflector 123b can comprise suitable logic, circuit and/or code, is used to handle the WLAN and/or the BT signal that are used to transmit.WLAN/BT reflector 123b can transmit the RF signal in the frequency band that is used by the WLAN/BT system.

Processor 125 can comprise suitable logic, circuit and/or code, is used to realize control and/or data processing operation to portable terminal 120.Processor 125 can be used for controlling at least a portion in WLAN/BT receiver 123a, WLAN/BT reflector 123b, WLAN digital baseband processor 129a, BT digital baseband processor 129b and/or the memory 127.In this, processor can generate the control operation that at least one signal is used for portable terminal 120.

Memory 127 comprises suitable logic, circuit and/or code, is used to store data and/or the out of Memory that uses for portable terminal 120.For example, memory 127 can be used for storing the treated data that generated by WLAN digital baseband processor 129a, BT digital baseband processor 129b and/or processor 125.Memory 127 also can be used for storing the information of at least one module operation in the control portable terminal 120, for example configuration information (configuration information).For example, memory 127 can comprise necessary information, is used to be provided with the WLAN/BT receiver and makes it receive WLAN and/or BT signal at suitable frequency band.

Fig. 2 A is the schematic block diagram according to the shared low noise amplifier circuit of the single-chip WLAN of the single CMOS substrate of being arranged in of the embodiment of the invention and bluetooth radio.With reference to Fig. 2 A, show single-chip WLAN and BT wireless transmitter 200.Single-chip WLAN and BT wireless transmitter 200 can comprise shared LNA 202, WLAN receiver 204a, BT receiver 204b, shared power amplifier (PA) 216, WLAN reflector 214a, BT reflector 214b, power divider 224, power combiner (power combiner) 226 and baseband processor 230.WLAN receiver 204a can comprise WLAN LNA 206a, WLAN frequency mixer 208a, low pass filter (LPF) 210a and ADC 212a.BT receiver 204b can comprise WLAN LNA 206b, WLAN frequency mixer 208b, low pass filter (LPF) 210b and ADC 212b.WLAN reflector 214a can comprise WLAN frequency mixer 218a, low pass filter (LPF) 220a and DAC 222a.BT reflector 214b can comprise WLAN frequency mixer 218b, low pass filter (LPF) 220b and DAC 222b.Baseband processor 230 can comprise WLAN baseband processor 231a and BT baseband processor 231b.

LNA 202 can comprise suitable logic, circuit and/or code, is used to amplify small-signal (for example, by the dBm metering), as the signal that receives from antenna.LNA 202 receives as is labeled as the signal of input among Fig. 2 A, and generation is as being labeled as C among Fig. 2 A _ROutput signal.Input signal can be the RF signal that receives at antenna, and this antenna can communicate to connect with LNA 202.LNA 202 can be received among Fig. 2 A and be labeled as I _Ref202The input grid current.Can select grid current level (bias current level) to realize the linear operation of LNA 202.In the range of linearity of computing, can be expressed as the linear function of the amplitude of the input signal on a plurality of input signal amplitudes basis from the amplitude of the output signal of LNA 202.This linear function can be based on the gain of LNA 202 at least a portion of these input signal amplitudes.

WLAN receiver 204a can comprise suitable logic, circuit and/or code, be used for to the WLAN signal that receives amplify, down conversion, filtering and/or ADC handle.BT receiver 204b can comprise suitable logic, circuit and/or code, be used for to the BT signal that receives amplify, down conversion, filtering and/or ADC handle.

WLAN LNA 206a can be similar substantially with LNA 202.WLAN LNA 206a can be received among Fig. 2 A and be labeled as I _Ref206aThe input grid current.Can select described grid current level to realize the linear operation of WLAN LNA 206a.

BT LNA 206b can be similar substantially with LNA 202.BT LNA 206b can be received among Fig. 2 A and be labeled as I _Ref206bThe input grid current.Can select described grid current level to realize the linear operation of BT LNA 206b.

WLAN frequency mixer 208a can comprise suitable logic, circuit and/or code, is used for described input signal is made down conversion.But WLAN frequency mixer 208a usage flag is WLAN LO _208aThe input local oscillator signals of (in Fig. 2 A) is made down conversion with described input signal.Input signal can be the RF signal, with its frequency reducing to generate baseband signal or intermediate frequency (IF) signal.Usually, WLAN frequency mixer 208a can generate such signal, and its frequency can be frequency, the signal WLAN LO of input signal _208aFrequency and/or derived from the summation or the difference of the harmonic frequency of aforementioned signal.WLAN frequency mixer 208a can be received among Fig. 2 A and be labeled as I _Ref208aThe input grid current.Can select described grid current level to realize the frequency reducing operation of WLAN frequency mixer 208a.

BT frequency mixer 208b can be similar substantially with WLAN frequency mixer 208a.But BT frequency mixer 208b usage flag is BT LO _208bThe input local oscillator signals of (in Fig. 2) is made down conversion with described input signal.BT frequency mixer 208b can be received among Fig. 2 A and be labeled as I _Ref208bThe input grid current.Can select described grid current level to realize the frequency reducing operation of BT frequency mixer 208b.

LPF 210a can comprise suitable logic, circuit and/or code, is used to select cut-off frequency.LPF210a can be used for making those corresponding frequencies to be higher than the amplitude fading of the input signal component of cut-off frequency, those corresponding frequencies be lower than cut-off frequency input signal component amplitude then can " by " or and the degree of unattenuated or decay be higher than the attenuation degree of amplitude of the signal component of cut-off frequency less than those.In various embodiment of the present invention, LPF 210a can realize by passive filter, can use resistor, capacitor and/or inductance element as it; Or, can use operational amplifier as it by the active filter realization.LPF 210a can be received among Fig. 2 A and be labeled as I _Ref210aThe input grid current.Can select described grid current level to realize the filtering operation of LPF 210a.

LPF 210b can be similar substantially with LPF 210a.LPF 210b can be received among Fig. 2 A and be labeled as I _Ref210bThe input grid current.Can select described grid current level to realize the filtering operation of LPF 210b.

ADC 212a can comprise suitable logic, circuit and/or code, is used for the analog signal conversion of input is become corresponding digital form.ADC 212a can receive the input analog signal, shows as signal amplitude.

ADC 212a can be associated with value corresponding by the scope with analog signal level value (signal level value), thus quantized analog signal.ADC 212a can measure the analog signal level of input signal by measurement or integration in the time interval (time instants) δ t, determines the analog signal level a moment.The time interval in the measurement or sampling interval can determine that usually, compare with described integration interval δ t, the described time interval or sampling interval are longer based on sample rate.ADC 212a can be received among Fig. 2 A and be labeled as I _Ref212aThe input grid current.Can select described grid current level to realize the conversion operations of ADC 212a.

ADC 212b can be similar substantially with ADC 212a.ADC 212b can be received among Fig. 2 A and be labeled as I _Ref212bThe input grid current.Can select described grid current level to realize the conversion operations of ADC 212b.

Power divider 224 can comprise suitable logic, circuit and/or code, is used for input signal is linked to each other with a plurality of outputs.In an exemplary embodiments of the present invention, power divider 224 can be received in the single input signal that is labeled as CR among Fig. 2 A, and it can link to each other with two outputs.In Fig. 2 A, described two outputs are labeled as B respectively _RAnd W _R

WLAN reflector 214a can comprise suitable logic, circuit and/or code, is used for the WLAN signal that is used to send with generation by DAC processing, filtering and/or raising frequency input baseband signal.BT reflector 214b can comprise suitable logic, circuit and/or code, is used for the BT signal that is used to send with generation by the described input baseband signal of DAC processing, filtering and/or raising frequency.

DAC 222a can comprise suitable logic, circuit and/or code, is used for converting supplied with digital signal to the corresponding simulating form.DAC 222a can receive among Fig. 2 A and be labeled as I _Ref222aThe input grid current.Can select described grid current level to realize the conversion operations of DAC 222a.

DAC 222b can be similar substantially with DAC 222a.DAC 222b can receive among Fig. 2 A and be labeled as I _Ref222bThe input grid current.Can select described grid current level to realize the conversion operations of DAC 222b.

LPF 220a can be similar substantially with LPF 210a.LPF 220a can receive among Fig. 2 A and be labeled as I _Ref220aThe input grid current.Can select the grid current level to realize the filtering operation of LPF 220a.

LPF 220b can be similar substantially with LPF 210a.LPF 220b can receive among Fig. 2 A and be labeled as I _Ref220bThe input grid current.Can select the grid current level to realize the filtering operation of LPF 220b.

WLAN frequency mixer 218a can comprise suitable logic, circuit and/or code, is used for by input signal being made frequency up-conversion to generate the WLAN signal.But WLAN frequency mixer 218a usage flag is WLANLO _218aThe input local oscillator signals realize the frequency up-conversion of input signal.Signal through raising frequency can be the RF signal.WLAN frequency mixer 218a can generate WLAN RF signal, the carrier frequency of described RF signal can with signal WLAN LO _218aFrequency about equally.WLAN frequency mixer 218a can receive among Fig. 2 A and be labeled as I _Ref218aThe input grid current.Can select described grid current level to realize the raising frequency operation of WLAN frequency mixer 218a.

BT frequency mixer 218b can be similar substantially with WLAN frequency mixer 218a.But BT frequency mixer 218b usage flag is BT LO _218bThe input local oscillator signals of (among Fig. 2 A) is made frequency up-conversion with input signal.BT frequency mixer 218b can receive among Fig. 2 A and be labeled as I _Ref218bThe input grid current.Can select described grid current level to realize the raising frequency operation of BT frequency mixer 218b.

PA 216 can comprise suitable logic, circuit and/or code, is used for the signal that amplification input signal is used to send with generation, and described signal has by the required enough signal powers of wireless transmission medium transmission (for example, with the dBm metering).PA 202 is received among Fig. 2 A and is labeled as C _TInput signal, and generate the signal that is labeled as output among Fig. 2.Output signal can be the RF signal by the antenna transmission that communicates to connect with PA 216.PA 216 can receive among Fig. 2 A and be labeled as I _Ref216The input grid current.Can select described grid current level to realize the linear operation of PA 216 on a plurality of input signal amplitudes.Described linear operation can be based on the gain of PA 216 at least a portion of these input signal amplitudes.

Power combiner 226 can comprise suitable logic, circuit and/or code, is used to make a plurality of input points to link to each other with an output point.In an exemplary embodiments of the present invention, power combiner 226 can will be labeled as B respectively among Fig. 2 A _TAnd W _TA plurality of input signals be attached among Fig. 2 A and be labeled as C _TThe signal output point.

Baseband processor 230 can comprise suitable logic, circuit and/or code, is used to handle the binary data that is included in the input baseband signal.Baseband processor 230 can be carried out processing operation, and described operation is corresponding to the one or more layers in available Protocol REference Model (PRM).For example, baseband processor 230 can be carried out physics (PHY) layer processing, layer 1 (L1) processing, media interviews controls (MAC) layer processing, the processing of logic link control (LLC) layer, layer 2 (L2) processing and/or the more upper-layer protocol processing based on the binary data of input.Processing operation that baseband processor 230 is carried out can be regarded as and carries out at numeric field.Baseband processor 230 can generate control signal based on the processing of binary load certificate.WLAN baseband processor 231a can carry out with the transmission of WLAN signal and/or receive relevant processing operation, and BT baseband processor 231b can carry out transmission and/or the relevant processing operation of reception with the BT signal.

When realizing, but LNA 202, WLAN receiver 204a, WLAN reflector 214a, BT receiver 204b, BT reflector 214b and PA 216 Analog signals, and therefore can regard as at analog domain and carry out processing operation.

LNA 202 can receive the input of input rf signal, and generates amplifying signal, and described amplifying signal is by power divider 224, and is labeled as W among Fig. 2 A _RPoint link to each other.LNA 202 can provide the first order gain amplifier of the reception that is applicable to WLAN signal and/or BT signal.WLAN LNA 206a can be labeled as W _RThe some amplification input signal, to provide applicable to the partial gain amplifier that receives the WLAN signal.Similarly, BT LNA 206b can be labeled as B _RThe some amplification input signal, be applicable to the partial gain amplifier that receives the BT signal to provide.

WLAN frequency mixer 208a can use input local oscillator signals WLAN LO _208aTo make down conversion from the input signal that WLANLNA 206a receives.Similarly, BT frequency mixer 208b can use input local oscillator signals BT LO _208bTo make down conversion from the input signal that BT LNA 206b receives.LPF 210a can be set, make a frequency component (component) of the input signal that receives from WLAN frequency mixer 208a to pass through, this frequency can and be labeled as WLAN LO with the frequency of the signal that is labeled as input _208aSignal frequency difference about equally.The signal amplitude of other frequency component in the above-mentioned input signal of LPF 210a will be attenuated.Similarly, LPF 210b can be by a frequency component of the input signal that receives from BT frequency mixer 208b, and this frequency can and be labeled as BT LO with the frequency of the signal that is labeled as input _208bSignal frequency difference about equally.

The ADC 212a signal amplitude of the input signal that receives from LPF 210a of can sampling, and generate baseband signal, described baseband signal comprises the bit that generates based on the signal amplitude of the sampling of converting analogue input signal.ADC 212b can similarly generate the baseband signal of the analog input signal that receives from LPF 210b.WLAN baseband processor 231a can finish being included in the processing of the above-mentioned bit from the input baseband signal that ADC 212a receives, and BT baseband processor 231b can finish being included in the processing of the above-mentioned bit from the input baseband signal that ADC 212b receives.

WLAN baseband processor 231a can generate the baseband signal that comprises the bit that will be sent to DAC 222a, and BT baseband processor 231b can generate the baseband signal that comprises the bit that will be sent to DAC 222b.DAC 222a can generate the analog signal that comprises one or more signal levels, and the generation of described analog signal is based on the input bit that receives from baseband processor 230.Similarly, DAC 222b also can generate analog signal based on the input bit that receives from baseband processor 230.The analog signal that DAC 222a generates may comprise the high fdrequency component of a plurality of non-expectations.Can decay to the signal amplitude of these non-desired frequency components by LPF 220a.Similarly, can decay by the LPF 220b pair of signal amplitude relevant with non-desired frequency component in the analog signal that DAC 222b generates.

WLAN frequency mixer 218a is according to input local oscillator signals WLAN LO _218aTo make frequency up-conversion from the input signal that LPF 220a receives, generate RF WLAN signal with carrier signal.Similarly, BT frequency mixer 218b is according to input local oscillator signals BT LO _218bTo make frequency up-conversion from the input signal that LPF 220b receives, generate RF BT signal with carrier signal.

Power combiner 226 can will be labeled as W from being arranged in Fig. 2 A _TThe signal of WLAN frequency mixer 218a of point be sent to and be arranged in the input point of PA 216 that Fig. 2 A is labeled as the point of CT.PA 216 can provide suitable amplification to the power stage of input signal, be used for being labeled as by the radio communication media transmission signal of output.Power combiner 226 also can will be labeled as B from being arranged in Fig. 2 A _TThe signal of BT frequency mixer 218b of point be sent to and be arranged in the input point of PA 216 that Fig. 2 A is labeled as the point of CT.

Baseband processor 230 can generate control signal, is used to control the concurrent running of WLAN receiver 204a and/or BT receiver 204b.For example, baseband processor 231a can generate control signal, is used to input local oscillator signals WLAN LO _208aSelect frequency, and BT baseband processor 231b can generate control signal, be used to input local oscillator signals BT LO _208bSelect frequency.Baseband processor 230 also can generate control signal, is used to control the concurrent running of WLAN reflector 214a and/or BT reflector 214b.For example, baseband processor 231a can generate control signal, is used to input local oscillator signals WLAN LO _208aSelect frequency, and BT baseband processor 231b can generate control signal, be used to input local oscillator signals BT LO _208bSelect frequency.

In various embodiment of the present invention, WLAN receiver 204a and BT receiver 204b are integrated on the single-chip COMS substrate, and this will make single LNA 202 circuit can receive WLAN signal and BT signal.Similarly, WLAN receiver 204a and BT receiver 204b are integrated on the single-chip COMS substrate, and this will make single PA 216 circuit be used to send WLAN signal and BT signal.

Fig. 2 B is the schematic block diagram according to WLAN on the monocrepid of the embodiment of the invention and Bluetooth circuit.With reference to Fig. 2 B, show single-chip WLAN and BT wireless transmitter 250.Single-chip WLAN and BT wireless transmitter 250 can comprise assembly (package) 252.Assembly 252 can comprise substrate (substrate) 254.Substrate 254 can comprise by semiconductor fabrication processing (as COMS) and is integrated in WLAN and BT circuit 256 on this substrate 254.

Fig. 3 is the schematic block diagram according to the shared crystal-oscillator circuit of the single-chip WLAN of the single CMOS substrate of being arranged in of the embodiment of the invention and bluetooth radio.Fig. 3 shows and is used for generating input local oscillator signals WLAN LO _208a, WLAN LO _218a, BT LO _208b, BT LO _218bExemplary circuit.With reference to Fig. 3, show single-chip WLAN and BT wireless transmitter 200 (Fig. 2 A), and XO 302.Single-chip WLAN and BT wireless transmitter 200 can comprise buffer 304, WLAN mark-N phase-locked loop (FracN PLL) 306a, BT FracN PLL 306b, a plurality of frequency divider (FDIV) module 308a, 308b, 310a and 312a, a plurality of mixer module 314a and 314b.

XO 302 can comprise suitable logic, circuit and/or code, is used to make the frequency resonance of piezoelectric crystal in the frequency range of determining, the voltage that applies with response.In the typical block diagram shown in Fig. 3, XO 302 can be used as a source that can generate reference signal, and the frequency of described reference signal can be expressed as F _Ref

Buffer 304 can comprise suitable logic, circuit and/or code, is used to realize the connection between high impedance source and the low-impedance load, and there be not remarkable decay and/or the distortion from the signal in source in described connection.

WLAN FracN PLL 306a can comprise suitable logic, circuit and/or code, is used to generate output signal, and described output signal frequency can be expressed as F _WLANDescribed output signal can be based on input signal and input divisor N _WLANGenerate, wherein the frequency of input signal can be expressed as F _RefInput divisor N _WLANCan comprise integer part and/or fractional part.Frequency F _RefAnd F _WLANBetween the available following equation of relation represent:

$F_{\mathrm{WLAN}}\≅\frac{F_{\mathrm{Ref}}}{N_{\mathrm{WLAN}}}---\left(1\right)$

In exemplary embodiment of the present invention, by F _WLANThe frequency of expression is approximately 4GHz.

BT FracN PLL 306b can be basic identical with WLAN FracN PLL 306a.BT FracN PLL306b can be used for generating output signal, and described output signal frequency can be expressed as F _BTDescribed output signal can be based on input signal F _RefWith input divisor N _BTInput divisor N _BTCan comprise integer part and/or fractional part.Frequency F _RefAnd F _BTBetween the available following equation of relation represent:

$F_{\mathrm{BT}}\≅\frac{F_{\mathrm{Ref}}}{N_{\mathrm{BT}}}---\left(2\right)$

In exemplary embodiment of the present invention, by F _BTThe frequency of expression is approximately 16GHz.

FDIV module 308a can comprise suitable logic, circuit and/or code, and being used for generated frequency is F _OutOutput signal, described frequency F _OutBy received signal frequency F _InMark determine.In the exemplary embodiment of FDIV module 308a of the present invention, frequency F _OutWith frequency F _InRelation shown in the following equation:

$F_{\mathrm{out}}\≅\frac{F_{\mathrm{in}}}{2}---\left(3\right)$

FDIV module 308b, 310a and 312a and FDIV module 308a are basic identical.Mixer module 314a and 314b can be basic identical with WLAN frequency mixer 208a.

Mixer module 314a can use its frequency marker to be F _{DIV_W1}First input signal and its frequency marker be F _{DIV_W3}Second input signal be created on the output signal that is labeled as WLAN LO among Fig. 3.Output signal WLAN LO can comprise its frequency and frequency F _{DIV_W1}And F _{DIV_W3}Sum frequency component about equally.

Mixer module 314b can use its frequency marker to be F _BTFirst input signal and its frequency marker be F _{DIV_B}Second input signal be created on the output signal that is labeled as BT LO among Fig. 3.Output signal BT LO can comprise its frequency and frequency F _BTAnd F _{DIV_B}Sum frequency component about equally.

When realizing, can select F _WLANAnd F _BTMake it to have enough frequency intervals, to avoid occurrence frequency traction, at this at frequency value F _BTThere is a kind of like this tendency, will be towards frequency value F _WLANIt is adjusted or draws, and vice versa.XO 302 and buffer 304 can generate its frequency can be expressed as F _RefReference signal.Reference signal will be transferred to WLAN FracN PLL 306a and BT FracN PLL 306b.

WLAN FracN PLL 306a can generate output signal, and its frequency is the F shown in the formula [1] _WLANIn exemplary embodiments of the present invention, can be based on reference signal frequency F _RefSelect divider value N _WLAN, frequency F like this _WLANValue can be small in 4GHz.FDIV module 308a can receive the input signal from WLAN FracNPLL 306a, and to generate its frequency representation be F _{DIV_W1}Output signal.In exemplary embodiments of the present invention, frequency F _{DIV_W1}Value can be small in 2GHz.FDIV module 310a can receive the input signal from FDIV module 308a, and to generate its frequency representation be F _{DIV_W2}Output signal.In exemplary embodiments of the present invention, frequency F _{DIV_W2}Value can be small in 1GHz.FDIV module 312a can receive the input signal from FDIV module 310a, and to generate its frequency representation be F _{DIV_W3}Output signal.In exemplary embodiments of the present invention, frequency F _{DIV_W3}Value can be small in 500MHz.Mixer module 314a can receive from the input signal of FDIV module 308a with from the input signal of FDIV module 312a.Based on these input signals, mixer module 314a can generate output signal WLAN LO.In an exemplary embodiments of the present invention, the frequency values of described output signal WLAN LO can be substantially equal to 2.4GHz.Output signal WLAN LO can be used as input local oscillator signals WLAN LO _208aAnd/or input local oscillator signals WLAN LO _218a

BT FracN PLL 306b can generate output signal, and its frequency is the F shown in the formula [2] _BTIn exemplary embodiments of the present invention, can be based on reference signal frequency F _RefSelect divider value N _BT, frequency F like this _BTValue be substantially equal to 1.6GHz.FDIV module 308b can receive the input signal from BT FracN PLL 306b, and to generate its frequency representation be F _{DIV_B}Output signal.In exemplary embodiments of the present invention, frequency F _{DIV_B}Value can be substantially equal to 800MHz.Mixer module 314b can receive from the input signal of BTFracN PLL 306b with from the input signal of FDIV module 308b.Based on these signals, mixer module 314b can generate output signal BT LO.In exemplary embodiments of the present invention, the frequency values of output signal BT LO can be substantially equal to 2.4GHz.Output signal BT LO can be used as input local oscillator signals BT LO _208bAnd/or input local oscillator signals BT LO _218b

In various embodiment of the present invention, integrated WLAN receiver 204a and WLAN reflector 214a on the single chip CMOS substrate, and BT receiver 204b and BT reflector 214b, can make single XO 302 can be used for generating WLAN LO signal and BT LO signal.

Fig. 4 A is the exemplary block diagram according to the shared grid current calibration circuit of the single-chip WLAN of the single CMOS substrate of being arranged in of the embodiment of the invention and bluetooth radio.Fig. 4 A shows such circuit, and it is used in and generates input grid current I among WLAN receiver 204a and the WLAN reflector 214a _Ref206a, I _Ref208a, I _Ref210a, I _Ref212a, I _Ref218a, I _Ref220a, I _Ref222aFig. 4 A further shows such circuit, and it is used among BT receiver 204b and the BT reflector 214b and generates I _Ref206b, I _Ref208b, I _Ref210b, I _Ref212b, I _Ref218b, I _Ref220b, I _Ref222bFig. 4 also shows such circuit, and it is used for generating input grid current I _Ref202And I _Ref216With reference to Fig. 4 A, show single-chip WLAN and BT wireless transmitter 200.Single-chip WLAN and BT wireless transmitter 200 can comprise WLAN band gap (bandgap) reference circuit 402a, BT bandgap reference circuit 402b and resistor calibration (RCAL) circuit 404.

WLAN bandgap reference circuit 402a can comprise suitable logic, circuit and/or code, is used to generate electric current, and the amplitude of described electric current is not subjected to the operating temperature variable effect.WLAN bandgap reference circuit 402a can generate a plurality of input grid currents that are used for WLAN receiver 204a and/or WLAN reflector 214a.These input grid currents can comprise I _Ref206a, I _Ref208a, I _Ref210a, I _Ref212a, I _Ref218a, I _Ref220aAnd I _Ref222a(Fig. 2 A).Typical WLAN bandgap reference circuit 402a also can generate input grid current I _Ref202

BT bandgap reference circuit 402b can be basic identical with WLAN bandgap reference circuit 402a.BT bandgap reference circuit 402b can generate a plurality of input grid currents that are used for BT receiver 204b and/or BT reflector 214b.These input grid currents can comprise I _Ref206b, I _Ref208b, I _Ref210b, I _Ref212b, I _Ref218b, I _Ref220bAnd I _Ref222b(Fig. 2 A).Typical B T bandgap reference circuit 402b also can generate input grid current I _Ref216

In other exemplary embodiments of the present invention, input grid current I _Ref202And/or input grid current I _Ref216Can generate by WLAN bandgap reference circuit 402a, or generate, or generate by one or more independent bandgap reference circuit by BT bandgap reference circuit 402b.

RCAL circuit 404 can comprise suitable logic, circuit and/or code, is used for being created on Fig. 4 A and is labeled as Code _WLANAnd Code _BTOne or more codes.RCAL circuit 404 can pass inner variable resistance R by comparing input current _{On_Chip}Voltage that causes and input current pass the external calibration resistor R _{Off_Chip}The voltage that causes generates one or more codes.Resistance by adjusting inner variable resistance is with the balance comparative voltage, and RCAL circuit 404 can generate at least one code at each input current that receives.

When realizing, RCAL circuit 404 can comprise that being used for generation is labeled as Code _WLANThe circuit of code.RCAL circuit 404 can use by one or more grid currents of WLAN bandgap reference circuit 402a generation or by one or more grid currents that BT bandgap reference circuit 402b generates and be labeled as Code as feeding back input current, generating _WLANCode.Code Code _WLANCan be sent to WLAN bandgap reference circuit 402a.Based on the code Code that receives _WLAN, WLAN bandgap reference circuit 402a can be input grid current I _Ref206a, I _Ref208a, I _Ref210a, I _Ref212a, I _Ref218a, I _Ref220aAnd I _Ref222aSelect current stage.WLAN bandgap reference circuit 402a also can be input grid current I _Ref202Select current stage.

RCAL circuit 404 can comprise that being used for generation is labeled as Code _BTThe circuit of code.RCAL circuit 404 can use by one or more grid currents of WLAN bandgap reference circuit 402a generation or by one or more grid currents that BT bandgap reference circuit 402b generates and be labeled as Code as feeding back input current, generating _BTCode.Code Code _BTCan be sent to BT bandgap reference circuit 402b.Based on the code Code that receives _BT, BT bandgap reference circuit 402b can be input grid current I _Ref206b, I _Ref208b, I _Ref210b, I _Ref212b, I _Ref218b, I _Ref220bAnd I _Ref222bSelect current stage.BT bandgap reference circuit 402b also can be input grid current I _Ref216Select current stage.

In various embodiment of the present invention, at single CMOS substrate integrated WLAN receiver 204a and WLAN reflector 214a, and BT receiver 204b and BT reflector 214b, can make single RCAL circuit 404 can be used for generating code Code _WLANWith generating code Code _BTIn this, RCAL circuit 404 can use the one or more electric current generating code Code that generated by WLAN bandgap reference circuit 402a _WLANWith code Code _BTBoth.Perhaps, RCAL circuit 404 can use one or more electric current generating code Code that BT bandgap reference circuit 402b generates _WLANWith code Code _BTBoth.

Fig. 4 B is the exemplary block diagram according to the resistance calibration circuit of the single-chip WLAN of the single CMOS substrate of being arranged in of the embodiment of the invention and bluetooth radio.With reference to Fig. 4 B, show single-chip WLAN and BT wireless transmitter 200, and the external calibration resistor R _{Off_Chip}416.Single-chip WLAN and BT wireless transmitter 200 can comprise RCAL circuit 404.RCAL circuit 404 can comprise processor 412, and sheet carries (on-chip) variable resistance R _{On_Chip}414.

Be in operation, RCAL circuit 404 can receive input current I _Ref, this electric current can be generated by WLAN bandgap reference circuit 402a or BT bandgap reference circuit 402b.RCAL circuit 404 can use this input current stream I _RefMeasure as its process variable resistance R _{On_Chip}The voltage V that caused in 414 o'clock ₁RCAL circuit 404 can use this input current stream I _RefMeasure when its process external calibration resistor R _{Off_Chip}The voltage V that caused in 416 o'clock ₂Processor 412 can compare voltage level V ₁And V ₂Value, and adjust variable resistance R _{On_Chip}414 resistance value is up to voltage level V ₁And V ₂About equally.Output (it is labeled as Code in Fig. 4 B) from RCAL circuit 404 can be sent to WLAN bandgap reference circuit 402a and BT bandgap reference circuit 402b.

In exemplary embodiments of the present invention, be labeled as Code _WLANThe code of (Fig. 4 A) and be labeled as Code _BTThe code of (Fig. 4 A) can equate.Be labeled as Code _WLANThe code of (Fig. 4 A) and be labeled as Code _BTThe code of (Fig. 4 A) can be respectively with Fig. 4 B in be marked as Code code equate.Yet, at the Code that is labeled as of RCAL circuit 404 generations _WLANCode and be labeled as Code _BTCode when unequal, the present invention also can implement.

Fig. 5 is the exemplary block diagram according to the common circuit of the single-chip WLAN of the single CMOS substrate of being arranged in of the embodiment of the invention and bluetooth radio.Fig. 5 provides the summation of the common circuit that can receive, send and/or handle WLAN and BT signal.With reference to Fig. 5, show single-chip WLAN and BT wireless transmitter 200.Single-chip WLAN and BT wireless transmitter 200 can comprise WLAN analog circuit 502, WLAN digital circuit 506, BT analog circuit 506, BT digital circuit 508, common analog circuit 512 and common numbers circuit 514.

WLAN analog circuit 502 and BT analog circuit 506 can comprise the circuit that is used to carry out at the operation of analog domain Signal Processing.WLAN digital circuit 504 and BT digital circuit 508 can comprise the circuit that is used to carry out at the operation of numeric field Signal Processing.Common analog circuit 512 can comprise such circuit, and described circuit can be used respectively or jointly by WLAN analog circuit 502 and/or BT analog circuit 506, and/or is used respectively or jointly by WLAN digital circuit 504 and/or BT digital circuit 508.Common numbers circuit 514 can comprise such circuit, and described circuit can be used respectively or jointly by WLAN digital circuit 504 and/or BT digital circuit 508.

Common analog circuit 512 can comprise shared LNA circuit 202, shared PA circuit 216, shared RCAL circuit 404, shared crystal-oscillator circuit 302, shared low-power oscillator (LPO) circuit, shared outside sleep clock (sleep clock) circuit, electrification reset and voltage stabilizing circuit.When single-chip WLAN and BT wireless transmitter 200 are during in low power operational mode or " dormancy " pattern, LPO can be used for generating predictable and stable timing signal.Single-chip WLAN and BT wireless transmitter 200 also can use the outside sleep clock signal that is generated by outside sleep clock circuit (as the XO circuit).In various embodiment of the present invention, integrated WLAN receiver 204a and WLAN reflector 214a on single chip, and BT receiver 204b and BT reflector 214b, can make when single-chip WLAN and BT wireless transmitter 200 are in sleep pattern, can use single LPO circuit to be WLAN signal processing and BT signal processing generation system timing signal.Similarly, when single-chip WLAN and BT wireless transmitter 200 are in sleep pattern, can use the generation system timing signal of single outside sleep clock circuit as WLAN and BT both circuits.In addition, shared logical block (common logic block) circuit can use in baseband processor 230.For example, it can be used for handling the baseband signal that comes from the WLAN signal that receives, and/or is used to handle the baseband signal that comes from the BT signal that receives.Baseband processor 230 also can comprise shared logical block, and this shared logical block can be WLAN receiver 204a and/or WLAN reflector 214a both circuits, and/or BT receiver 204b and/or BT reflector 214b both circuits generation control signal.Shared logical block also can generate control signal at numeric field, and described signal can be used for being controlled at the WLAN processing and/or the BT processing of numeric field.

When additional wireless transmitter is integrated on the single chip CMOS substrate, when supporting the additional wireless communication service, various embodiment of the present invention also are enforceable.For example, when comprising WLAN wireless transmitter, BT wireless transmitter and gsm wireless R-T unit on the single chip CMOS substrate, aforesaid various embodiment of the present invention also can implement.

When using other IC manufacturing technology (as BiCMOS, NMOS and PMOS) rather than COMS, various embodiment of the present invention also can implement.

The various aspects of native system can be included in the WLAN acceptor circuit 204a of single-chip 200 substrates, and it can be used for receiving the WLAN signal; Be positioned at the Bluetooth Receiver circuit 204b of same substrate, it can be used for receiving Bluetooth signal.WLAN acceptor circuit 204a and BT acceptor circuit 204b can use amplifier circuit in low noise 202 to receive WLAN signal and BT signal.

WLAN acceptor circuit 204a can join and receive the WLAN signal by the input and the output coupling of single LNA circuit 202 with oneself.WLAN acceptor circuit 204a can make down conversion with the WLAN signal that receives by using WLAN LO signal, receives the WLAN signal, and wherein the optional frequency of WLAN LO signal is from the WLAN frequency band.

Single XO 302 can be used for generating WLAN LO signal and BT LO signal.WLAN PLL circuit 306a can be used for generating the VCO signal based on signal and WLAN divisor input value that single XO 302 generates, and wherein WLAN divisor input value can comprise integer and/or mark.Can use one or more divider circuit 308a and one or more mixer 314a to generate the WLANLO signal based on the VCO signal that generates.

BT acceptor circuit 204b can join and receive the BT signal by the input and the output coupling of single LNA circuit 202 with oneself.BT acceptor circuit 204b can make down conversion with the BT signal that receives by using BT LO signal, receives the BT signal, and wherein the optional frequency of BT LO signal is from the BT frequency band.

Single XO 302 can generate BT LO signal and WLAN LO signal.BT PLL circuit 306b can generate the VCO signal based on the signal and the BT divisor input value that are generated by single XO 302, can comprise integer and/or mark in this BT divisor input value.One or more divider circuit 308b and one or more mixer 314b can generate BT LO signal based on the VCO signal that generates.

The various aspects of native system comprise the WLAN transmitter circuit 214a that is positioned at the single-chip substrate, are used to send the WLAN signal, and the bluetooth transmitters circuit 214b that is positioned at same substrate, are used to send Bluetooth signal.WLAN transmitter circuit 214a and bluetooth transmitters circuit 214b can use the single power amplification circuit 216 that can send WLAN signal and BT signal.

WLAN transmitter circuit 214a can be coupled and send the WLAN signal by the output and the input of PA circuit 216 with oneself.WLAN transmitter circuit 214a can make frequency up-conversion by the input signal that uses WLAN LO signal will be derived from baseband signal, sends the WLAN signal, and wherein the frequency of WLAN LO signal is selected from the WLAN frequency band.

Single XO 302 can be used for generating WLAN LO signal and BT LO signal.WLAN PLL circuit 306a can generate the VCO signal based on the signal and the WLAN divisor input value that are generated by single XO 302, and wherein WLAN divisor input value can comprise integer and/or mark.One or more divider circuit 308a and one or more mixer 314a can generate WLAN LO signal based on the VCO signal that generates.

BT transmitter circuit 214b can be coupled and send the BT signal by the output and the input of PA circuit 216 with oneself.BT transmitter circuit 214b can make frequency up-conversion by the input signal that uses BT LO signal will be derived from baseband signal and send the BT signal, and wherein the frequency of BT LO signal is selected from the BT frequency band.

Single XO 302 can be used for generating BT LO signal and WLAN LO signal.BT PLL circuit 306b can generate the VCO signal based on the signal and the BT divisor input value that are generated by single XO 302, and wherein BT divisor input value can comprise integer and/or mark.One or more divider circuit 308b and one or more mixer 314b can generate BT LO signal based on the VCO signal that generates.

Native system sends and/or received signal by radio communication media, it can comprise and is positioned at least one circuit of drawing together the single-chip substrate, be used for generating WLAN LO signal and bluetooth LO signal from the input signal that receives, described input signal is from single crystal-oscillator circuit.

Native system sends and/or received signal by radio communication media, and it can comprise WLAN bandgap reference circuit and the bluetooth bandgap reference circuit that is positioned at the single-chip substrate.

Native system sends and/or received signal by radio communication media, and it comprises the LPO circuit that is positioned at the single-chip substrate, is used to WLAN receiver, WLAN reflector, Bluetooth Receiver and bluetooth transmitters generation system timing signal.

Native system sends and/or received signal by radio communication media, it can comprise the single-chip IC that is positioned at the single-chip substrate, and it comprises: the LPO circuit that is used to WLAN receiver, WLAN reflector, Bluetooth Receiver and bluetooth transmitters generation system timing signal; WLAN bandgap reference circuit and bluetooth bandgap reference circuit; Be used for generating the circuit of WLAN LO signal and bluetooth LO signal according to the input signal that receives from single crystal-oscillator circuit; Can receive the LNA circuit of WLAN signal and reception Bluetooth signal; Can send the PA circuit of WLAN signal and transmission Bluetooth signal; And/or being used for generating the resistor calibration circuit of at least one code word based at least one grid current, described grid current receives from WLAN bandgap reference circuit and/or bluetooth bandgap reference circuit.

Therefore, the present invention can pass through hardware, software, and perhaps soft, combination of hardware realizes.The present invention can realize with centralized system at least one computer system, perhaps be realized with dispersing mode by the different piece in the computer system that is distributed in several interconnection.Any computer system or miscellaneous equipment that can implementation method all be applicatory.The combination of software and hardware commonly used can be the general-purpose computing system that computer program is installed, and by installing and executive program control computer system, it is moved by method.

The present invention can also implement by computer program, and program comprises whole features that can realize the inventive method, when it is installed in the computer system, can realize method of the present invention.Computer program in the presents refers to: one group of any expression formula of instructing that can adopt any program language, code or symbol to write, this instruction group makes system have information processing capability, with direct realization specific function, or after carrying out following one or two step, realize specific function: a) convert other Languages, coding or symbol to; B) reproduce with different forms.

Though the present invention describes by specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.In addition, at particular condition or material, can make various modifications to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole execution modes that fall in the claim scope of the present invention.

Claims (10)

1. system by the radio communication media received signal, described system comprises:

Be positioned at least one wireless local area network receiver circuit of single-chip substrate, be used to receive wireless lan signal;

Be positioned at least one Bluetooth Receiver circuit of the described substrate of described single-chip, be used to receive Bluetooth signal; And

Described at least one wireless local area network receiver circuit and described at least one Bluetooth Receiver circuit use at least one shared amplifier circuit in low noise, and described at least one shared amplifier circuit in low noise can be used for receiving described wireless lan signal and is used to receive described Bluetooth signal.

2. according to the described system of claim 1, it is characterized in that, described at least one wireless local area network receiver circuit is by joining from the output of described at least one shared amplifier circuit in low noise and the input coupling of described at least one wireless local area network receiver circuit, to realize the described reception of described wireless lan signal.

3. system that is used for sending signal by radio communication media, described system comprises:

Be positioned at least one wireless LAN transmitter circuit of single-chip substrate, be used to send wireless lan signal;

Be positioned at least one bluetooth transmitters circuit of the described substrate of described single-chip, be used to send Bluetooth signal; And

Described at least one wireless LAN transmitter circuit and described at least one bluetooth transmitters circuit use at least one shared power amplifier circuit, and described at least one shared power amplifier circuit can be used for sending described wireless lan signal and is used to send described Bluetooth signal.

4. system that is used to be provided with circuit, described system comprises:

Be positioned at least one resistor checking circuit of single-chip substrate, be used for generating at least one code word, the reception of described grid current from WLAN (wireless local area network) bandgap reference circuit and bluetooth bandgap reference circuit based at least one grid current;

Described WLAN (wireless local area network) bandgap reference circuit generates at least one WLAN (wireless local area network) grid current signal based at least one code word of described generation;

Described bluetooth bandgap reference circuit generates at least one bluetooth grid current signal based at least one code word of described generation.

5. method by the radio communication media received signal, described method comprises:

Receive wireless lan signal at least one the wireless local area network receiver circuit that is arranged in the single-chip substrate;

Receive Bluetooth signal at least one the Bluetooth Receiver circuit that is arranged in the single-chip substrate;

Be positioned at least one shared low noise amplifier circuit of described single-chip substrate by use, receive described wireless lan signal and described Bluetooth signal in one or two in following equipment: described at least one wireless local area network receiver circuit and described at least one Bluetooth Receiver circuit.

6. one kind sends by radio communication media and/or the system of received signal, described system comprises: be positioned at least one circuit of single-chip substrate, be used for generating WLAN (wireless local area network) local oscillator signals and bluetooth local oscillator signals according to the input signal that receives from single crystal-oscillator circuit.

7. one kind is used for sending and the system of received signal by radio communication media, and described system comprises: be positioned at on-chip WLAN (wireless local area network) bandgap reference circuit of single core and bluetooth bandgap reference circuit.

8. one kind sends by radio communication media and/or the system of received signal, described system comprises: be positioned at the low-power oscillator circuit of single-chip substrate, be used to wireless local area network receiver, wireless LAN transmitter, Bluetooth Receiver and bluetooth transmitters generation system timing signal.

9. one kind sends by radio communication media and/or the system of received signal, and described system comprises:

Be positioned at the circuit of single-chip integrated of single substrate, at least one under described circuit of single-chip integrated comprises in the column circuits:

The low-power oscillator circuit is used to wireless local area network receiver, wireless LAN transmitter, Bluetooth Receiver and bluetooth transmitters generation system timing signal;

WLAN (wireless local area network) bandgap reference circuit and bluetooth bandgap reference circuit;

At least one circuit is used for generating WLAN (wireless local area network) local oscillator signals and bluetooth local oscillator signals according to the input signal that receives from single crystal-oscillator circuit;

Amplifier circuit in low noise is used to receive wireless lan signal and is used to receive Bluetooth signal;

Power amplifier circuit is used to send wireless lan signal and is used to send Bluetooth signal; And

The resistor calibration circuit is used for generating at least one code word based at least one grid current, and described grid current is from one in the following circuit: described WLAN (wireless local area network) bandgap reference circuit and bluetooth bandgap reference circuit.

10. one kind sends by radio communication media and/or the method for received signal, and described method comprises according to the input signal that receives from single crystal-oscillator circuit and generates WLAN (wireless local area network) local oscillator signals and bluetooth local oscillator signals.

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