CN107147403A

CN107147403A - The diversity receiver front end system compensated with amplifier phase

Info

Publication number: CN107147403A
Application number: CN201710337905.1A
Authority: CN
Inventors: S·R·M·沃洛泽西亚克
Original assignee: Conexant Systems LLC
Current assignee: Skyworks Solutions Inc; Conexant Systems LLC
Priority date: 2014-10-31
Filing date: 2015-10-29
Publication date: 2017-09-08
Anticipated expiration: 2035-10-29
Also published as: HK1223203A1; GB2572881A; GB2572886A; TWI580207B; SG10201508952RA; KR20160052359A; JP2019165476A; JP2017092952A; TWI581580B; GB201909024D0; TWI611673B; TW201631909A; JP6029728B2; JP6525935B2; GB2572882B; JP2019092178A; JP6526365B1; JP2016103819A; SG10201609056PA; GB2572882A

Abstract

The diversity receiver front end system compensated with amplifier phase.A kind of reception system may include the first amplifier being arranged at along first path corresponding with first frequency band between the input of the reception system and the output of the reception system.The reception system may include the second amplifier being arranged at along the second path corresponding with second frequency band between the input of the reception system and the output of the reception system.The reception system may include along the first path be arranged and configured to based on first amplifier at the second frequency band caused by phase in-migration the first phase-shifting elements of phase shift are carried out to the second frequency band for passing through the signal of first phase-shifting elements.

Description

The diversity receiver front end system compensated with amplifier phase

The application is entitled " the diversity receiver front end system with phase-shifting elements " submitted on October 29th, 2015 Application for a patent for invention 201510717254.X divisional application.

The cross reference of related application

This application claims entitled " the DIVERSITY RECEIVER FRONT END submitted on October 31st, 2014 Entitled " the CARRIER that SYSTEM " U.S. Provisional Application No. 62/073,043, on October 31st, 2014 submit AGGREGATION USING POST-LNA PHASE MATCHING " U.S. Provisional Application No. No. 62/073,040,2014 Entitled " the PRE-LNA OUT OF BAND IMPEDANCE MATCHING FOR CARRIER submitted October 31 The denomination of invention that AGGREGATION OPERATION " U.S. Provisional Application No. 62/073,039, on June 9th, 2015 submit For " DIVERSITY RECEIVER FRONT END SYSTEM WITH IMPEDANCE MATCHING COMPONENTS's " Entitled " the DIVERSITY RECEIVER FRONT that U. S. application the 14/734,775th, on June 9th, 2015 submit END SYSTEM WITH PHASE-SHIFTING COMPONENTS " U. S. application No. 14/734,759 and 2015 years Entitled " the DIVERSITY RECEIVER FRONT END SYSTEM WITH VARIABLE-GAIN submitted June 1 The priority of AMPLIFIERS " U. S. application the 14/727th, 739, hereby by reference by the disclosure of each of which Hold and be clearly all herein incorporated.

Technical field

Present invention relates generally to the wireless communication system with one or more diversity reception antennas.

Background technology

In wireless communications application, size, cost and performance are the examples of factor that may be important for giving product Son.For example, for improving performance, the radio parts of such as diversity reception antenna and associated circuit system etc are just becoming more It is popular.

In many radio frequencies (RF) application, diversity reception antenna, which is placed, must be physically remote from primary antenna (primary antenna).When two antennas are simultaneously all by use, transceiver can handle the signal from two antennas is gulped down with improving data The amount of telling.

The content of the invention

According to some embodiments, the application is related to a kind of reception system, and the reception system includes controller, is configured to Optionally activate one or many in multiple paths between the input of the reception system and the output of the reception system It is individual.The reception system also includes multiple amplifiers.Each amplifier in the multiple amplifier is along along the multiple path One path of correspondence be arranged and configured to be amplified the signal received at the amplifier.The reception system Also include multiple impedance match parts.Each impedance match part in the multiple impedance match part is along the multiple path In one path of correspondence be arranged and configured to reduce the out-of-band noise coefficient in one path in the multiple path (noise figure) or with least one in outer gain.

In certain embodiments, in the multiple impedance match part along in the multiple path with first frequency band The first impedance match part that corresponding first path is set is configurable to reduce and the second path in the multiple path The out-of-band noise coefficient of corresponding second frequency band or with least one in outer gain.

In certain embodiments, the second impedance set along second path in the multiple impedance match part It is configurable to reduce the out-of-band noise coefficient of the first frequency band or with least one in outer gain with part.At some In embodiment, it is corresponding with the 3rd path in the multiple path that first impedance match part is also configured as reduction The out-of-band noise coefficient of 3rd frequency band or with least one in outer gain.

In certain embodiments, first impedance match part is also configured as being directed to the first frequency band, subtracts Noise coefficient or increase are with interior gain in small band.In certain embodiments, first impedance match part be configurable to by The interior measurement (metric) of band that the in-band noise coefficient subtracts gain in the band is reduced to interior measurement minimum value (minimum) A threshold quantity within.In certain embodiments, first impedance match part is configurable to the out-of-band noise system Number plus the outer measurement of the band of the outer gain of the band are reduced to measuring minimum value (in-band-constrained outside interior restraint strap out-of-band metric minimum)。

In certain embodiments, the reception system can also include multiplexer, be configured to receive in the input To input signal be separated into multiple signals along corresponding multiple frequency bands of the multiple propagated.In some embodiments In, each impedance match part in the multiple impedance match part can be arranged on the multiplexer and the multiple amplification Between a corresponding amplifier in device.In certain embodiments, the reception system can also include signal combiner, configuration To combine the signal along the multiple propagated.

In certain embodiments, at least one impedance match part in the multiple impedance match part can be passive Circuit.In certain embodiments, at least one impedance match part in the multiple impedance match part can be RLC electricity Road.

In certain embodiments, at least one impedance match part in the multiple impedance match part can include can Impedance match part is adjusted, the impedance for being configured to be presented by the impedance-tumed signal that receives from the controller to control.

In certain embodiments, first set along the first path corresponding with first frequency band in the multiple path The second frequency band that impedance match part is also configured as the signal to passing through first impedance match part is carried out Phase shift so that along the initial signal of the second propagated corresponding with the second frequency band in the multiple path and along institute State the reflected signal same phase (in-phase) at least in part of first path propagation.

In some embodiments, the application is related to a kind of radio frequency (RF) module, and the RF modules include being configured to accommodate The package substrate of multiple parts.The RF modules also include implementing the reception system in the package substrate.It is described to receive system System includes controller, is configured to optionally activate many between the input of the reception system and the output of the reception system One or more of individual path.The reception system also includes multiple amplifiers.Each amplification in the multiple amplifier Device is arranged and configured to enter the signal received at the amplifier along one path of correspondence in the multiple path Row amplification.The reception system also includes multiple impedance match parts.Each impedance in the multiple impedance match part It is arranged and configured to reduce described one in the multiple path along one path of correspondence in the multiple path with part The out-of-band noise coefficient in individual path or with least one in outer gain.In certain embodiments, the RF modules can be point Collect receiver front end module (FEM).

According to some teachings, the application is related to a kind of wireless device, and the wireless device is penetrated including being configured to reception first Frequently the first antenna of (RF) signal.The wireless device also includes the first front-end module (FEM) communicated with the first antenna. First FEM includes being configured to accommodate the package substrate of multiple parts.First FEM also includes implementing in the encapsulation lining Reception system on bottom.The reception system includes controller, be configured to optionally to activate the reception system input and One or more of multiple paths between the output of the reception system.The reception system also includes multiple amplifiers. Each amplifier in the multiple amplifier is set along one path of correspondence in the multiple path, and be configured to The signal received at the amplifier is amplified.The reception system also includes multiple impedance match parts.It is the multiple Each impedance match part in impedance match part is set along one path of correspondence in the multiple path, and is configured to Reduce the out-of-band noise coefficient in one path in the multiple path or with least one in outer gain.It is described wireless Device also includes transceiver, is configured to receive the processing version of the first RF signals from the output via transmission line, and And data bit is generated based on the processing version of the first RF signals.

In certain embodiments, the wireless device can also include being configured to receive the second of the second radio frequency (RF) signal Antenna and the 2nd FEM with second antenna communication.The transceiver is configurable to connect from the output of the 2nd FEM Receive the processing version of the 2nd RF signals, and data bit is generated based on the processing version of the 2nd RF signals.

In certain embodiments, in the multiple impedance match part along in the multiple path with first frequency band It is corresponding with the second path in the multiple path that the first impedance match part that corresponding first path is set is configured to reduction Second frequency band out-of-band noise coefficient or with least one in outer gain.

According to some embodiments, the application is related to a kind of reception system, and the reception system includes controller, is configured to Optionally activate one or many in multiple paths between the input of the reception system and the output of the reception system It is individual.The reception system also includes multiple amplifiers.Each amplifier in the multiple amplifier is along along the multiple path One path of correspondence be arranged and configured to be amplified the signal received at the amplifier.The reception system Also include multiple phase-shifting elements.Each phase-shifting elements in the multiple phase-shifting elements are along the correspondence one in the multiple path Path is arranged and configured to carry out phase shift to the signal for passing through the phase-shifting elements.

In certain embodiments, in the multiple phase-shifting elements along corresponding with first frequency band in the multiple path First path set the first phase-shifting elements be configurable to second of the signal to passing through first phase-shifting elements Frequency band carries out phase shift so that along second of the second propagated corresponding with the second frequency band in the multiple path Initial signal and the second reflected signal same phase at least in part propagated along the first path.

In certain embodiments, the second phase-shifting elements set along second path in the multiple phase-shifting elements can Phase shift is carried out with the first frequency band for being configured to the signal to passing through second phase-shifting elements so that along the first via The first initial signal and the first reflected signal same phase at least in part along second propagated that footpath is propagated.

In certain embodiments, first phase-shifting elements are also configured as to passing through first phase-shifting elements Signal the 3rd frequency band carry out phase shift so that along the 3rd tunnel corresponding with the 3rd frequency band in the multiple path The 3rd initial signal that footpath is propagated and the 3rd reflected signal same phase at least in part propagated along the first path.

In certain embodiments, first phase-shifting elements are configurable to passing through first phase-shifting elements The second frequency band of signal carries out phase shift so that second initial signal and second reflected signal have 360 degree whole The phase difference of several times.

In certain embodiments, the reception system can also include multiplexer, be configured to receive in the input To input signal be separated into multiple signals along corresponding multiple frequency bands of the multiple propagated.In some embodiments In, the reception system can also include signal combiner, be configured to signal of the combination along the multiple propagated.At some In embodiment, the reception system can also include amplifier after combiner, be arranged on the signal combiner and the output Between, amplifier is configured to the signal that amplification is received after the combiner at amplifier after the combiner.In some realities Apply in example, each phase-shifting elements in the multiple phase-shifting elements can be arranged on the signal combiner and the multiple amplification Between a corresponding amplifier in device.In certain embodiments, at least one amplifier in the multiple amplifier can be with Including dual-stage amplifier.

In certain embodiments, at least one phase-shifting elements in the multiple phase-shifting elements can be passive circuit. In some embodiments, at least one phase-shifting elements in the multiple phase-shifting elements can be lc circuit.

In certain embodiments, at least one phase-shifting elements in the multiple phase-shifting elements can include tunable phase shift portion Part, is configured to will pass through one amount of signal phase shift of the tunable phase shift part, the amount from the controller by receiving The phase shift tuning signal control arrived.

In certain embodiments, the reception system can also include multiple impedance match parts, the multiple impedance Set with each impedance match part in part along one path of correspondence in the multiple path, and be configured to reduce institute State the out-of-band noise coefficient in one path of the correspondence in multiple paths or with least one in outer gain.

In some embodiments, the application is related to a kind of radio frequency (RF) module, and the RF modules include being configured to accommodate The package substrate of multiple parts.The RF modules also include implementing the reception system in the package substrate.It is described to receive system System includes controller, is configured to optionally activate many between the input of the reception system and the output of the reception system One or more of individual path.The reception system also includes multiple amplifiers.Each amplification in the multiple amplifier Device is arranged and configured to enter the signal received at the amplifier along one path of correspondence in the multiple path Row amplification.The reception system also includes multiple phase-shifting elements.Each phase-shifting elements in the multiple phase-shifting elements are described in One path of correspondence in multiple paths is arranged and configured to carry out phase shift to the signal for passing through the phase-shifting elements.

In certain embodiments, the RF modules can be diversity receiver front-end module (FEM).

In certain embodiments, in the multiple phase-shifting elements along corresponding with first frequency band in the multiple path The first phase-shifting elements for setting of first path be configured to the second frequency of the signal to passing through first phase-shifting elements Band carries out phase shift so that initial along second of the second propagated corresponding with the second frequency band in the multiple path Signal and the second reflected signal same phase at least in part propagated along the first path.

According to some teachings, the application is related to a kind of wireless device, and the wireless device is penetrated including being configured to reception first Frequently the first antenna of (RF) signal.The wireless device also includes the first front-end module (FEM) communicated with the first antenna. First FEM includes being configured to accommodate the package substrate of multiple parts.First FEM also includes implementing in the encapsulation lining Reception system on bottom.The reception system includes controller, be configured to optionally to activate the reception system input and One or more of multiple paths between the output of the reception system.The reception system also includes multiple amplifiers. Each amplifier in the multiple amplifier along one path of correspondence in the multiple path be arranged and configured to The signal received at the amplifier is amplified.The reception system also includes multiple phase-shifting elements.The multiple phase shift Each phase-shifting elements in part are arranged and configured to passing through along one path of correspondence in the multiple path The signal for stating phase-shifting elements carries out phase shift.The wireless device also includes transceiver, is configured to via transmission line from described defeated Go out the processing version for receiving the first RF signals, and data ratio is generated based on the processing version of the first RF signals It is special.

In certain embodiments, the wireless device can also include being configured to receive the second of the second radio frequency (RF) signal Antenna and the 2nd FEM with second antenna communication.The transceiver is configurable to connect from the output of the 2nd FEM Receive the processing version of the 2nd RF signals, and the data ratio is generated based on the processing version of the 2nd RF signals It is special.

For the purpose of general introduction the application, certain aspects of the invention, advantage and novel feature has been described herein. It should be appreciated that according to any specific embodiment of the present invention, being not necessarily intended to realize all these advantages.Therefore, it is possible to according to reality Existing or optimization is practiced or carried out the present invention such as the advantage or the mode of one group of advantage instructed herein, without realizing Such as the further advantage that can be instructed or advise herein.

Brief description of the drawings

Fig. 1, which shows to have, is couple to primary antenna (primary antenna) and diversity antenna (diversity Antenna the wireless device of communication module).

Fig. 2 shows the DRx configurations including diversity receiver (DRx) front-end module (FEM).

Fig. 3 shows that in certain embodiments diversity receiver (DRx) configuration can include DRx modules, DRx modules tool There are multiple paths corresponding with multiple frequency bands.

Fig. 4 shows that in certain embodiments diversity receiver configuration can include diversity RF modules, diversity RF module ratios Diversity receiver (DRx) module has less amplifier.

Fig. 5 shows that in certain embodiments diversity receiver configuration can include DRx modules, DRx module couples to mould Block outer filter (off-module filter).

Fig. 6 A show that in certain embodiments diversity receiver configuration can include DRx modules, and DRx modules have one Individual or multiple phase matched parts (component).

Fig. 6 B show that in certain embodiments diversity receiver configuration can include DRx modules, and DRx modules have one Individual or multiple phase matched parts and dual-stage amplifier.

Fig. 6 C show that in certain embodiments diversity receiver configuration can include DRx modules, and DRx modules have one Amplifier (post-combiner amplifier) after individual or multiple phase matched parts and combiner.

Fig. 7 shows that in certain embodiments diversity receiver configuration can include DRx modules, and DRx modules have adjustable (tunable) phase-shifting elements.

Fig. 8 shows that in certain embodiments diversity receiver configuration can include DRx modules, and DRx modules have one Or multiple impedance match parts.

Fig. 9 shows that in certain embodiments diversity receiver configuration can include DRx modules, and DRx modules have adjustable Impedance match part.

Figure 10 shows that in certain embodiments diversity receiver configuration can include DRx modules, and DRx modules, which have, to be set Put the adjustable impedance matching block at input and output.

Figure 11 shows that in certain embodiments diversity receiver configuration can include DRx modules, and DRx modules have many Individual tunable component.

Figure 12 shows the embodiment that the flow of the method for processing RF signals is represented.

Figure 13 depicts the module with one or more features as described herein.

Figure 14 depicts the wireless device with one or more features as described herein.

Embodiment

Subhead (if any) provided herein is merely to facilitate, and not necessarily influence claimed invention Scope or meaning.

Fig. 1 shows the wireless device 100 with the communication module 110 for being couple to primary antenna 130 and diversity antenna 140. Communication module 110 (and its building block) can be controlled by controller 120.Communication module 110 includes transceiver 112, and it is configured To be changed in analog radio frequency (RF) between signal and digital data signal.Therefore, transceiver 112 may include digital-to-analogue conversion Device, analog-digital converter, for base-band analog signal to be modulated into carrier frequency or the local oscillation from carrier frequency de not modulation base-band analog signal Device (local oscillator), between digital sample and data bit (for example, speech or other types of data) The BBP or other parts changed.

Communication module 110 also includes RF modules 114, is coupled between primary antenna 130 and transceiver 112.Because RF modules 114 can be physically proximate primary antenna 130, to reduce the decay caused by cable (cable) is lost, so RF modules 114 are referred to alternatively as front-end module (FEM).RF modules 114 analog signal received from primary antenna 130 can be performed processing for Transceiver 112, or the analog signal received from transceiver 112 is performed processing via primary antenna 130 to launch. Therefore, RF modules 114 may include wave filter, power amplifier, band selection switches, match circuit and other parts.It is similar Ground, communication module 110 includes the diversity RF modules 116 being coupled between diversity antenna 140 and transceiver 112, and its execution is similar Processing.

When signal is sent to wireless device, the signal can be connect at both primary antenna 130 and diversity antenna 140 Receive.Primary antenna 130 and diversity antenna 140 can be physically spaced apart so that the signal at primary antenna 130 and diversity antenna 140 Received with different characteristics.For example, in one embodiment, primary antenna 130 and diversity antenna 140 can be received and declined with difference Subtract, noise, the signal of frequency response or phase shift.Two signals with different qualities can be used to determine and believe for transceiver 112 Number corresponding data bit.In some embodiments, transceiver 112 is based on the characteristic in primary antenna 130 and diversity antenna Selected between 140, such as antenna of the selection with highest signal to noise ratio.In some embodiments, the combination of transceiver 112 comes The signal of self-consistent antenna 130 and diversity antenna 140 is to improve the signal to noise ratio of composite signal.In some embodiments, transceiver 112 process signals are communicated with performing multiple input/multiple output (MIMO).

Because diversity antenna 140 is physically spaced apart with primary antenna 130, diversity antenna 140 passes through such as cable Or the transmission line 135 of printed circuit board (PCB) (PCB) trace (trace) etc is couple to communication module 110.In some embodiments In, transmission line 135 is made before signal that is lossy and being received at diversity antenna 140 reaches communication module 110 It is decayed.Therefore, in some embodiments, as described below, gain is applied to the letter received at diversity antenna 140 Number.Gain (and other simulation process, such as filter) can be employed by diversity receiver module.Because such diversity Receiver module can be positioned to be physically proximate diversity antenna 140, so it is referred to alternatively as diversity receiver front-end module.

Fig. 2 shows the DRx configurations 200 including diversity receiver (DRx) front-end module (FEM) 210.DRx configurations 200 are wrapped Diversity antenna 140 is included, it is configured to receive diversity signal and provides the diversity signal to DRx FEM 210.DRx FEM 210 It is configured to perform processing to the diversity signal received from diversity antenna 140.For example, DRx FEM 210 can be configured to and believe diversity Number filtering is to one or more activation frequency bands indicated by such as controller 120.As another example, DRx FEM 210 can It is configured to amplify diversity signal.Therefore, DRx FEM 210 may include wave filter, low-noise amplifier, band selection switches, With circuit and other parts.

Diversity signal after processing is sent to downstream module, such as diversity RF by DRx FEM 210 via transmission line 135 (D-RF) module 116, the diversity signal after further processing is fed to transceiver 112 by it.Diversity RF modules 116 (and, In some embodiments, transceiver) controlled by controller 120.In some embodiments, controller 120 can be embodied in receipts In hair machine 112.

Fig. 3 shows that in certain embodiments diversity receiver (DRx) configuration 300 can include DRx modules 310, DRx Module 310 has multiple paths corresponding with multiple frequency bands.DRx configurations 300 include the diversity for being configured to receive diversity signal Antenna 140.In some embodiments, diversity signal can be that the single-frequency of data for including being modulated on single frequency band is taken a message Number.In some embodiments, diversity signal can be the data for including being modulated on multiple frequency bands multi-band signal ( Referred to as frequency band configured signal).

DRx modules 310 have the input of diversity signal of the reception from diversity antenna 140 and (via transmission line 135 With diversity RF modules 320) output of the diversity signal to transceiver 330 after offer processing.The input of DRx modules 310 is fed to In the input of first multiplexer (MUX) 311.First multiplexer 311 is exported including multiple multiplexers, and each of which corresponds to DRx moulds Path between the input and output of block 310.Each path may correspond to corresponding frequency band.The output of DRx modules 310 is by The output of two multiplexers 312 is provided.Second multiplexer 312 is inputted including multiple multiplexers, and each of which corresponds to DRx modules 310 Input and output between one of path.

Frequency band can be the honeycomb frequency band of such as UMTS (UMTS) frequency band etc.For example, the One frequency band can be the UMTS downlinks or " Rx " frequency band 2 between 1990MHz, the second frequency at 1930 megahertzs (MHz) Rate band can be the UMTS downlinks or " Rx " frequency band 5 between 869MHz and 894MHz.Other downlinks can be used Frequency band, such as below described in table 1 those or other non-UMTS frequency bands.

In some embodiments, DRx modules 310 include DRx controllers 302, and it is received from controller 120 (also referred to as For communication controler) signal, and based on receive signal come optionally activate input output between multiple paths in One or more paths.In some embodiments, DRx modules 310 do not include DRx controllers 302, and controller 120 is direct Optionally activate one or more of multiple paths path.

As described above, in some embodiments, diversity signal is single frequency tone signal.Therefore, in some embodiments, First multiplexer 311 is that (SPMT) switch is thrown hilted broadsword more, and it is based on the signal received from DRx controllers 302 by diversity signal It is routed to the path corresponding with the frequency band of single frequency tone signal in multiple paths.DRx controllers 302 can be based on DRx controls Band selected signal that device 302 processed is received from communication controler 120 generates the signal.Similarly, in some embodiment party In formula, the second multiplexer 312 is SPMT switches, and it is based on the signal incoming road received from DRx controllers 302 by from multiple roads The signal in the path corresponding with the frequency band of single frequency tone signal in footpath.

As described above, in some embodiments, diversity signal is multi-band signal.Therefore, in some embodiments, First multiplexer 311 is demultiplexer, and it is believed diversity based on the separator control signal received from DRx controllers 302 Number it is routed to two or more paths corresponding with two or more frequency bands of multi-band signal in multiple paths.Signal point Function from device can be embodied as SPMT switches, diplexer filter or these certain combination.Similarly, in some embodiment party In formula, the second multiplexer 312 is signal combiner, and it is based on the combiner control signal combination received from DRx controllers 302 The signal in two or more paths corresponding with two or more frequency bands of multi-band signal in multiple paths.Signal The function of combiner can be embodied as SPMT switches, duplexer (diplexer) wave filter or these certain combination.DRx is controlled The band selected signal that device 302 can be received based on DRx controllers 302 from communication controler 120 is believed to generate separator control Number and combiner control signal.

Therefore, in some embodiments, DRx controllers 302 are configured to DRx controllers 302 (for example, from communication Controller 120) band selected signal that receives optionally activates one or more of multiple paths path.At some In embodiment, DRx controllers 302 are configured to by sending separator control signal to demultiplexer and sending combiner control Signal processed selectively activates one or more of multiple paths path to signal combiner.

DRx modules 310 include multiple bandpass filter 313a-313d.Each edge in bandpass filter 313a-313d One path of correspondence in multiple paths is set, and is configured to the signal filtering that will be received at bandpass filter to multiple The corresponding frequencies band in one path in path.In some embodiments, bandpass filter 313a-313d is additionally configured to By the descending of the corresponding frequencies band in one path of the signal filtering received at bandpass filter into multiple paths Link frequency subband.DRx modules 310 include multiple amplifier 314a-314d.Each in amplifier 314a-314d is along more One path of correspondence in individual path is set, and is configured to the signal that amplification is received at the amplifier.

In some embodiments, amplifier 314a-314d is narrow-band amplifier, is configured to amplification and is provided with described put Signal in the corresponding frequencies band in the path of big device.In some embodiments, amplifier 314a-314d can be by DRx controllers 302 controls.For example, in some embodiments, it is each including enabling/forbidding input, and base in amplifier 314a-314d In enabling signal and be enabled (or forbidding) enabling/forbid the amplifier that input receives.Amplifier enables signal can be by DRx controllers 302 are sent.Therefore, in some embodiments, DRx controllers 302 are configured to enable letter by sending amplifier Select number to one or more of the amplifier 314a-314d set respectively along one or more of multiple paths path Activate one or more of multiple paths to property.In such embodiment, not controlled by DRx controllers 302, first Multiplexer 311 can be demultiplexer, and its route diversity signal is each into multiple paths, and the second multiplexer 312 can be with It is signal combiner, it combines the signal in each path in multiple paths.However, DRx controllers 302 are controlled wherein In the embodiment of first multiplexer 311 and the second multiplexer 312, DRx controllers 302 can also enable (or forbidding) specific amplification Device 314a-314d is for example to save battery.

In some embodiments, amplifier 314a-314d is variable gain amplifier (VGA).Therefore, implement at some In mode, DRx modules 310 include multiple variable gain amplifiers (VGA), and each VGA is along one road of correspondence in multiple paths Footpath is arranged and configured to amplify in VGA with the gain by the amplifier control signal received from DRx controllers 302 control The signal that place is received.

VGA gain can be can bypass, can stepped change, can consecutive variations.In some embodiments, respectively At least one in VGA includes fixed gain amplifier and the by-pass switch that can be controlled by amplifier control signal.By-pass switch The circuit being input between the output of fixed gain amplifier of fixed gain amplifier can be connected (in first position), makes signal Bypassed fixed gain amplifier.By-pass switch can disconnect the circuit between input and output (in the second place), lead to signal Cross fixed gain amplifier transmission.In some embodiments, when by-pass switch is in first position, fixed gain amplifier quilt Forbid or otherwise reconfigure to adapt to bypass mode.

In some embodiments, at least one in each VGA include gain can stepped change amplifier (step- Variable gain amplifier), the gain of one of its multiple configuration amount for being configured to be indicated by amplifier control signal To amplify the signal received at VGA.In some embodiments, at least one in each VGA, which includes gain, continuously to become The amplifier (continuously-variable gain amplifier) of change, its be configured to with amplifier control signal into The signal received at VGA is amplified in the gain of ratio.

In some embodiments, amplifier 314a-314d is current-variable amplifier (VCA).VCA draws (draw's) Electric current can be can bypass, can stepped change, can consecutive variations.In some embodiments, at least one in each VCA It is individual including fixed current amplifier and the by-pass switch that can be controlled by amplifier control signal.By-pass switch can be (in first position) The circuit being input between the output of fixed current amplifier of fixed current amplifier is connected, signal was bypassed fixed current Amplifier.By-pass switch can disconnect the circuit between input and output (in the second place), signal is amplified by fixed current Device is transmitted.In some embodiments, when by-pass switch is in first position, fixed current amplifier is prohibited or with other sides Formula reconfigures to adapt to bypass mode.

In some embodiments, at least one in each VCA include electric current can stepped change amplifier, it is configured to Amplify the signal received at VCA by drawing the electric current of one of the multiple configuration amounts indicated by amplifier control signal. In some embodiments, at least one in each VCA include electric current can consecutive variations amplifier, it is configured to by drawing The electric current proportional to amplifier control signal amplifies the signal received at VCA.

In some embodiments, amplifier 314a-314d is fixed gain, fixed current amplifier.In some implementations In mode, amplifier 314a-314d is fixed gain, variable current amplifier.In some embodiments, amplifier 314a- 314d is variable gain, fixed current amplifier.In some embodiments, amplifier 314a-314d be variable gain, it is variable Current amplifier.

In some embodiments, Service Quality of the DRx controllers 302 based on the input signal received in input is measured (metric) is measured to generate amplifier control signal.In some embodiments, DRx controllers 302 are based on from communication controler 120 signals received generate amplifier control signal, and the signal received from communication controler 120 then again can be based on connecing Service quality (QoS) measurement of the collection of letters number.Reception on diversity antenna 140 can be based at least partially on by receiving the QoS metric of signal To diversity signal (for example, the input signal received in input).The QoS metric for receiving signal can also be based on primary antenna The signal received.In some embodiments, QoS metric of the DRx controllers 302 based on diversity signal generates amplifier control Signal processed, without receiving signal from communication controler 120.

In some embodiments, QoS metric includes signal intensity.As another example, QoS metric may include error code Rate, data throughout, transmission delay or any other QoS metric.

As described above, DRx modules 310 have the input of diversity signal of the reception from diversity antenna 140 and (via biography Defeated circuit 135 and diversity RF module 320) output of the diversity signal to transceiver 330 after offer processing.Diversity RF modules 320 Via the diversity signal after the reception processing of transmission line 135 and the further processing of execution.Especially, the diversity letter after processing Number one or more paths are separated or are routed to by diversity RF multiplexers 321, it is corresponding in the signal for separating or routeing thereon Bandpass filter 323a-323d is filtered and amplified by corresponding amplifier 324a-324d.Each amplifier 324a-324d's Output is provided to transceiver 330.

Diversity RF multiplexers 321 can be controlled (directly or via (on-chip) diversity RF on piece to control by controller 120 Device processed) optionally to activate one or more paths.Similarly, amplifier 324a-324d can be controlled by controller 102.Example Such as, in some embodiments, each inputting and being made based on amplifier including enabling/forbidding in amplifier 324a-324d Can signal and be enabled (or forbidding).In some embodiments, amplifier 324a-324d is variable gain amplifier (VGA), Its amplifier control signal to be received from controller 120 (or diversity RF controllers on the piece controlled by controller 120) The signal received at VGA is amplified in the gain controlled.In some embodiments, amplifier 324a-324d is variable Current amplifier (VCA).

Because the DRx modules 310 for being added to receiver chain include diversity RF modules 320, so in DRx configurations 300 Bandpass filter doubles.Therefore, in some embodiments, bandpass filter 323a-323d is not included in point Collect in RF modules 320.But, the bandpass filter 313a-313d of DRx modules 310 be used to reduce outside band (out-of-band) Block the intensity of signal (blocker).In addition, automatic growth control (AGC) table of diversity RF modules 320 can be shifted (shift) amount of gain that, the amplifier 324a-324d of diversity RF modules 320 is provided reduces the amplification by DRx modules 310 The amount of gain that device 314a-314d is provided.

If for example, DRx module gains are 15dB and receiver sensitivity is -100dBm, then diversity RF modules 320 It will be seen that -85dBm sensitivity.If the closed loop AGC of diversity RF modules 320 is activation, then its gain will decline automatically 15dB.However, component of signal and all being received with outer retardance component and amplifying 15dB.Therefore, the 15dB of diversity RF modules 320 Gain, which declines, to be improved with the 15dB of its linearity.Especially, the amplifier 324a-324d of diversity RF modules 320 It can be designed such that the linearity of amplifier increases as gain reduces (or electric current increase).

In some embodiments, the amplifier 314a-314d and diversity RF modules of the control DRx of controller 120 modules 310 320 amplifier 324a-324d gain (and/or electric current).As in the examples described above, controller 120 may be in response to DRx modules The increase for the amount of gain that 310 amplifier 314a-314d is provided and reduce by the amplifier 324a- of diversity RF modules 320 The amount of gain that 324d is provided.Therefore, in some embodiments, controller 120 is configured to (be used for putting for DRx modules 310 Big device 314a-314d's) amplifier control signal is come under generating and (being used for the amplifier 324a-324d's of diversity RF modules 320) Swim amplifier control signal, with control via transmission line 135 be couple to (DRx modules 310) output it is one or more under Swim amplifier 324a-324d gain.In some embodiments, controller 120 is controlled also based on amplifier control signal The gain of other parts (such as, the amplifier in front-end module (FEM)) of wireless device.

As described above, in some embodiments, not including bandpass filter 323a-323d.Therefore, in some embodiment party In formula, at least one in downstream amplifier 324a-324d is couple to (DRx modules 310) output via transmission line 135, Without passing through downstream bandpass filter.

Fig. 4 shows that in certain embodiments diversity receiver configuration 400 can include diversity RF modules 420, diversity RF Module 420 has less amplifier than diversity receiver (DRx) module 310.Diversity receiver configuration 400 includes diversity antenna 140 and DRx modules 310, as described in Figure 3.The output of DRx modules 310 is delivered to diversity RF via transmission line 135 Module 420, the difference of itself and the diversity RF modules 320 in Fig. 3 is diversity RF modules 420 in Fig. 4 than DRx module 310 include less amplifier.

As described above, in some embodiments, diversity RF modules 420 do not include bandpass filter.Therefore, in some realities Apply in mode, one or more amplifiers 424 of diversity RF modules 420 need not be the (band- for special frequency band specific).Especially, diversity RF modules 420 may include one or more paths, and each path includes amplifier 424, described Path is not 1 pair 1 of the path mapping with DRx modules 310.The mapping of such path (or corresponding amplifier) can be stored in In controller 120.

Therefore, although DRx modules 310 include multiple paths, each path corresponds to a frequency band, but diversity RF modules 420 may include one or more paths for not corresponding to single frequency band.

In some embodiments (as shown in Figure 4), diversity RF modules 420 include single broadband or adjustable amplifier 424, It amplifies the signal received from transmission line 135 and exports amplified signal to multiplexer 421.Multiplexer 421 includes multiple Multiplexer is exported, and each multiplexer output corresponds to corresponding frequency band.In some embodiments, diversity RF modules 420 are not Including any amplifier.

In some embodiments, diversity signal is single frequency tone signal.Therefore, in some embodiments, multiplexer 421 Be SPMT switch, its diversity signal is routed to by multiple outputs based on the signal received from controller 120 in the list The corresponding output of frequency band of band signal.In some embodiments, diversity signal multi-band signal.Therefore, one In a little embodiments, multiplexer 421 is demultiplexer, and it will based on the separator control signal received from controller 120 Diversity signal be routed in multiple outputs it is corresponding with two or more frequency bands of the multi-band signal two or more Output.In some embodiments, diversity RF modules 420 can be combined as individual module with transceiver 330.

In some embodiments, diversity RF modules 420 include multiple amplifiers, and each amplifier corresponds to a class frequency Band.Signal from transmission line 135 can be fed in band separator, and the band separator exports high frequency along first path To high-frequency amplifier and along the second path output low frequency to low-frequency amplifier.The output of each amplifier can be provided that multiplexing Device 421, multiplexer 421 is configured to route the signals to the correspondence input of transceiver 330.

Fig. 5 shows that in certain embodiments diversity receiver configuration 500 can include DRx modules 510, DRx modules 510 are couple to module outer filter 513.DRx modules 510 may include the package substrate 501 and reality for being configured to accommodate multiple parts Apply the reception system in package substrate 501.DRx modules 510 may include one or more signal paths, and it is routed to DRx Module 510 is outer and allows system integration person, designer or producer to support the wave filter for any desired frequency band.

DRx modules 510 are included in multiple paths between the input and output of DRx modules 510.DRx modules 510 are included in Bypass path between input and output, being activated by the by-pass switch 519 controlled by DRx controllers 502.Although Fig. 5 is illustrated Single by-pass switch 519, but in some embodiments, by-pass switch 519 may include multiple switch (for example, setting The second switch of output must be physically proximate by being physically proximate the first switch of input and setting).As shown in figure 5, bypass Path does not include wave filter or amplifier.

DRx modules 510 include multiple multiplexer paths, and it includes the first multiplexer 511 and the second multiplexer 512.Multiplexing Device path includes multiple module upper pathways (on-module paths), and it includes the first multiplexer 511, implemented in package substrate Bandpass filter 313a-313d, the multiplexings of amplifier 314a-314d and second implemented in package substrate 501 on 501 Device 512.Multiplexer path includes one or more module outer pathways, and it includes the first multiplexer 511, implemented in package substrate Bandpass filter 513, the multiplexer 512 of amplifier 514 and second outside 501.Amplifier 514 can be implemented in encapsulation lining Broad band amplifier on bottom 501, or can also be embodied in outside package substrate 501.As described above, amplifier 314a-314d, 514 can be variable gain amplifier and/or variable current amplifier.

DRx controllers 502 are configured to optionally activate one or more of multiple paths between input and output. In some embodiments, DRx controllers 502 are configured to DRx controllers 502 (for example, from communication controler) and received To band selected signal optionally activate one or more of multiple paths path.DRx controllers 502 can pass through Such as open or closed by-pass switch 519, enables or forbids amplifier 314a-314d, 514, controls multiplexer 511,512, or Person carrys out optionally activated path by other mechanism.For example, DRx controllers 502 can be with the open or closed switch along path (for example, in wave filter 313a-313d, 513 and switch between amplifier 314a-314d, 514), or by by amplifier 314a-314d, 514 gain are set to substantially zeroed.

Fig. 6 A show that in certain embodiments diversity receiver configuration 600 can include DRx modules 610, DRx modules 610 have one or more phase matched part 624a-624b.DRx modules 610 include being couple to antenna from DRx modules 610 Two paths of 140 output for being couple to transmission line 135 for being input to DRx modules 610.

In Fig. 6 A DRx modules 610, demultiplexer and bandpass filter are embodied as duplexer 611.Duplexer 611 Including being couple to the input of antenna 140, being couple to the first amplifier 314a the first output and being couple to the second amplifier 314b Second output.At the first output, duplexer 611 export it is being received at input (for example, from antenna 140), filter to The signal of first frequency band.At the second output, duplexer 611 exports received in input, filtering and arrives second frequency band Signal.In some embodiments, duplexer 611 can utilize triplexer (triplexer), four work devices (quadplexer) or any other multiplexer replaces, any other multiplexer configuration is by the defeated of DRx modules 610 Enter multiple signals along multiple propagateds that the input signal that place receives is separated at corresponding multiple frequency bands.

As described above, each in amplifier 314a-314b is set along one path of correspondence in each path, and match somebody with somebody It is set to the signal that amplification is received at amplifier.Amplifier 314a-314b output is combined it combining 612 by signal Before, it is fed past corresponding phase-shifting elements 624a-624b.

Signal combiner 612 includes being couple to the first phase-shifting elements 624a the first input, is couple to the second phase-shifting elements The second of 624b inputs and is couple to the output of the output of DRx modules 610.Signal at the output of signal combiner is first Input and the signal sum of the second input.Therefore, signal combiner is configured to signal of the combination along multiple propagateds.

When antenna 140 receives signal, the signal is filtered to first frequency band by duplexer 611, and passes through first Amplifier 314a is propagated along first path.Signal after filtering and amplification carries out phase shift by the first phase-shifting elements 624a, and presents It is sent to the first input of signal combiner 612.In some embodiments, the amplifier 314b of signal combiner 612 or second is not Signal is prevented to continue through signal combiner 612 along the second path in the opposite direction.Therefore, signal propagates through the second phase shift Part 624b and by the second amplifier 314b, it is reflect off duplexer 611 there.Reflected signal propagates through second Amplifier 314b and the second phase-shifting elements 624b, with the second input of arriving signal combiner 612.

When (the first input of signal combiner 612) initial signal and (the second input of signal combiner 612 ) reflected signal out-phase (out-of-phase) when, the superposition (sumation) performed by signal combiner 612 causes signal group Signal reduction at the output of clutch 612.Similarly, when initial signal and reflected signal are with phase, held by signal combiner 612 Capable superposition causes the signal enhancing at the output of signal combiner 612.Therefore, in some embodiments, the second phase shift portion Part 624b is configured to carry out phase shift to (at least in first frequency band) signal so that initial signal and reflected signal at least portion Divide same phase.Especially, the second phase-shifting elements 624b is configured to carry out phase shift to (at least in first frequency band) signal, makes Obtain amplitude of the amplitude more than initial signal of initial signal and reflected signal sum.

For example, the second phase-shifting elements 624b can be configured to the signal for passing through the second phase-shifting elements 624b by by passing through Second amplifier 314b backpropagation, it is reflect off duplexer 611 and is drawn by the second amplifier 314b forward-propagating - 1/2 times of progress phase shift of the phase shift entered.As another example, the second phase-shifting elements 624b can be configured to passing through second Phase-shifting elements 624b signal by 360 degree with by the backpropagation by the second amplifier 314b, be reflect off duplexer 611, And phase shift is carried out by the poor half between the introduced phase shift of the second amplifier 314b forward-propagating.Usually, second Phase-shifting elements 624b can be configured to carries out phase shift to the signal for passing through the second phase-shifting elements 624b so that initial signal and anti- Penetrate phase difference of the signal with 360 degree of integral multiple (including zero).

As an example, initial signal can pass through the anti-of the second amplifier 314b 0 degree (or any other reference phase) To propagating, it is reflect off duplexer 611 and 140 degree of phase shift can be introduced by the second amplifier 314b forward-propagating.Cause This, in some embodiments, the second phase-shifting elements 624b be configured to pass through the second phase-shifting elements 624b signal by- 70 degree of progress phase shifts.Therefore, initial signal moves on to -70 degree by the second phase-shifting elements 624b phases, is passed through the second amplifier 314b Backpropagation, be reflect off duplexer 611 and the forward-propagating by the second amplifier 314b and mutually move on to 70 degree, and by Second phase-shifting elements 624b phases are moved back into 0 degree.

In some embodiments, the second phase-shifting elements 624b is configured to the letter to passing through the second phase-shifting elements 624b Number by 110 degree carry out phase shifts.Therefore, initial signal moves on to 110 degree by the second phase-shifting elements 624b phases, is passed through the second amplifier 314b backpropagation, it is reflect off duplexer 611 and the forward-propagating by the second amplifier 314b and mutually moves on to 250 degree, and And move on to 360 degree by the second phase-shifting elements 624b phases.

Meanwhile, the signal received by antenna 140 is filtered to second frequency band by duplexer 611, and is put by second Big device 314b is along the second propagated.Signal after filtering and amplification carries out phase shift by the second phase-shifting elements 624b, and feeds To the second input of signal combiner 612.In some embodiments, the amplifier 314a of signal combiner 612 or first does not hinder Stop signal continues through signal combiner 612 along first path in the opposite direction.Therefore, signal propagates through the first phase shift portion Part 624a and by the first amplifier 314a, it is reflect off duplexer 611 there.Reflected signal propagates through first and put Big device 314a and the first phase-shifting elements 624a, with the first input of arriving signal combiner 612.

When (the second input of signal combiner 612) initial signal and (the first input of signal combiner 612 ) reflected signal out-phase when, the superposition performed by signal combiner 612 causes the signal of the output of signal combiner 612 weak Change, when initial signal and reflected signal are with phase, the superposition performed by signal combiner 612 causes the defeated of signal combiner 612 The signal enhancing in source.Therefore, in some embodiments, the first phase-shifting elements 624a is configured to (at least in second frequency In band) signal carries out phase shift so that initial signal and reflected signal same phase at least in part.

For example, the first phase-shifting elements 624a can be configured to the signal for passing through the first phase-shifting elements 624a by by passing through First amplifier 314a backpropagation, it is reflect off duplexer 611 and is drawn by the first amplifier 314a forward-propagating - 1/2 times of progress phase shift of the phase shift entered.As another example, the first phase-shifting elements 624a can be configured to passing through first Phase-shifting elements 624a signal by 360 degree with by the backpropagation by the first amplifier 314a, be reflect off duplexer 611, And phase shift is carried out by the poor half between the introduced phase shift of the first amplifier 314a forward-propagating.Usually, first Phase-shifting elements 624a can be configured to carries out phase shift to the signal for passing through the first phase-shifting elements 624a so that initial signal and anti- Penetrate phase difference of the signal with 360 degree of integral multiple (including zero).

Phase-shifting elements 624a-624b can be embodied as passive circuit.Especially, phase-shifting elements 624a-624b can be embodied as LC Circuit, and one or more passive components including such as inductor and/or capacitor etc.Passive component can be in parallel And/or be connected in series, and can be connected between amplifier 314a-314b output and the input of signal combiner 612, Or can be connected between amplifier 314a-314b output and ground voltage.In some embodiments, phase-shifting elements 624a- 624b is integrated into and in amplifier 314a-314b identicals chip (die) or is integrated into same package.

In (for example, as shown in Figure 6A) some embodiments, phase-shifting elements 624a-624b is arranged on along the path After amplifier 314a-314b.Therefore, any signal attenuation does not influence module 610 caused by phase-shifting elements 624a-624b The signal to noise ratio of performance, such as output signal.However, in some embodiments, phase-shifting elements 624a-624b is set along the path Put before amplifier 314a-314b.For example, phase-shifting elements 624a-624b can be integrated into duplexer 611 and amplifier In the impedance match part set between 314a-314b.

Fig. 6 B show that in certain embodiments diversity receiver configuration 640 can include DRx modules 641, DRx modules 641 have one or more phase matched part 624a-624b and dual-stage amplifier 614a-614b.Fig. 6 B DRx modules 641 DRx modules 610 with Fig. 6 A are substantially similar, and simply the amplifier 314a-314b of Fig. 6 A DRx modules 610 is by Fig. 6 B DRx moulds Dual-stage amplifier 614a-614b substitutions in block 641.

Fig. 6 C show that in certain embodiments diversity receiver configuration 680 can include DRx modules 681, DRx modules 681 have amplifier 615 after one or more phase matched part 624a-624b and combiner.Fig. 6 C DRx modules 681 with Fig. 6 A DRx modules 610 are substantially similar, simply Fig. 6 C DRx modules 681 include being arranged on the output of signal combiner 612 with Amplifier 615 after combiner between the output of DRx modules 681.Similar to amplifier 314a-314b, amplifier after combiner 615 can be the variable gain amplifier (VGA) and/or variable current amplifier controlled by DRx controllers (not shown).

Fig. 7 shows that in certain embodiments diversity receiver configuration 700 can include DRx modules 710, DRx modules 710 have tunable phase shift part 724a-724d.Each can be configured in tunable phase shift part 724a-724d will pass through One amount of signal phase shift of tunable phase shift part, the amount is controlled by the phase shift tuning signal received from DRx controllers 702.

Diversity receiver configuration 700 includes DRx modules 710, and it has the input for being couple to antenna 140 and is couple to transmission The output of circuit 135.DRx modules 710 are included in multiple paths between the input and output of DRx modules 710.In some implementations In mode, DRx modules 710 include between input and output, one or more bypasses by being controlled by DRx controllers 702 One or more bypass path (not shown) of switch activator.

DRx modules 710 include multiple multiplexer paths, and it includes inputoutput multiplexer 311 and output multiplexer 312.Multiplexing Device path includes multiple module upper pathways (as shown in the figure), and it includes inputoutput multiplexer 311, bandpass filter 313a-313d, put Amplifier 615 after big device 314a-314d, tunable phase shift part 724a-724d, output multiplexer 312 and combiner.Multiplexing Device path may include one or more module outer pathway (not shown), as described above.Similarly, as described above, amplifier 314a- 314d (including rear gain amplifier 615) can be variable gain amplifier and/or variable current amplifier.

Tunable phase shift part 724a-724d may include one or more units of variances, such as inductor and capacitor.It is variable Part can be in parallel and/or is connected in series, and can be connected to amplifier 314a-314d output and output multiplexer Between 312 input, or it can be connected between amplifier 314a-314d output and ground voltage.

DRx controllers 702 are configured to optionally activate one or more of multiple paths between input and output. In some embodiments, DRx controllers 702 are configured to DRx controllers 702 (for example, from communication controler) and received To band selected signal optionally activate one or more of multiple paths path.DRx controllers 702 can pass through For example enable or forbid amplifier 314a-314d, control multiplexer 311,312, or by other mechanism as described above, come Optionally activated path.

In some embodiments, DRx controllers 702 are configured to be tuned tunable phase shift part 724a-724d. In some embodiments, DRx controllers 702 are tuned based on band selected signal to tunable phase shift part 724a-724d. For example, DRx controllers 702 can be tuned based on look-up table to tunable phase shift part 724a-724d, the look-up table will be by frequency The frequency band (or frequency band group) indicated with selection signal is associated with tuner parameters.Accordingly, in response to band selected signal, Phase shift tuning signal can be sent to the tunable phase shift part 724a-724d of each activated path by DRx controllers 702, with basis Tuner parameters are tuned to tunable phase shift part (or its units of variance).

DRx controllers 702 can be configured to be tuned to tunable phase shift part 724a-724d so that band external reflectance signal At output multiplexer 312 with the same phase of outer initial signal.If for example, band selected signal instruction is corresponding with first frequency band (by the first amplifier 314a's) first path, (by the second amplifier 314b's) second corresponding with second frequency band Path and (by the 3rd amplifier 314c's) the 3rd path will be activated, then DRx controllers 702 can be to the first tunable phase shift Part 724a is tuned so that (1) be directed to (at second frequency band) along the signal of the second propagated, initial signal and edge First path backpropagation, is reflect off bandpass filter 313a and same by the reflected signal of first path forward-propagating Phase, and (2) are directed to (at the 3rd frequency band) along the signal of the 3rd propagated, and initial signal along first path with reversely passing Broadcast, be reflect off bandpass filter 313a and the same phase of reflected signal for passing through first path forward-propagating.

DRx controllers 702 can be tuned to the first tunable phase shift part 724a so that the phase-shift phase of second frequency band is not It is same as the 3rd frequency band.If for example, due to the backpropagation by the first amplifier 314a, being reflect off bandpass filter Signal at 313a and the forward-propagating by the first amplifier 314a, second frequency band has been phase-shifted 140 degree and the 3rd frequency Signal at rate band has been phase-shifted 130 degree, then DRx controllers 702 can be tuned to the first tunable phase shift part 724a, will Second frequency band phase shift -70 spends (or 110 degree) and the 3rd frequency band phase shift -65 is spent into (or 115 degree).

DRx controllers 702 can be carried out similarly to the second tunable phase shift part 724b and the 3rd tunable phase shift part 724c Tuning.

As another example, if band selected signal indicates first path, the second path and (passes through the 4th amplifier 314d's) the 4th path will be activated, then and DRx controllers 702 can be tuned to the first tunable phase shift part 724a so that (1) it is directed to along the signal of the second propagated (at second frequency band), initial signal is with along first path backpropagation, reflecting Leave bandpass filter 313a and (the 4th frequency is directed to by the same phase of reflected signal of first path forward-propagating, and (2) With place) along the signal of the 4th propagated, initial signal is with along first path backpropagation, being reflect off bandpass filter 313a and the same phase of reflected signal for passing through first path forward-propagating.

Tunable phase shift part 724a-724d units of variance can be tuned as having by DRx controllers 702 is used for different frequency Different value with group.

In some embodiments, tunable phase shift part 724a-724d utilizes DRx controllers 702 untunable or control Fixed phase drift part replace.Each phase shift set along the corresponding path corresponding with a frequency band in multiple paths Each phase-shifting elements in part can be configured to each carry out phase shift in other frequency bands so that along corresponding other paths Initial signal with along one of path backpropagation, be reflect off corresponding bandpass filter and by the path it The same phase of reflected signal of one forward-propagating.

It can be fixed and be configured as (1) to the progress phase shift of first frequency band for example, third phase moves part 724c, So that the initial signal of (being propagated along first path) first frequency band is with along the 3rd path backpropagation, being reflect off the 3rd band Bandpass filter 313c and by the same phase of reflected signal of the 3rd path forward-propagating, (2) carry out phase shift to second frequency band, make (along the second propagated) initial signal of second frequency band with along the 3rd path backpropagation, be reflect off the 3rd band logical Wave filter 313c and by the same phase of reflected signal of the 3rd path forward-propagating, and (3) carry out phase shift to the 4th frequency band, So that the initial signal of (along the 4th propagated) the 4th frequency band is with along the 3rd path backpropagation, being reflect off the 3rd band Bandpass filter 313c and the same phase of reflected signal for passing through the 3rd path forward-propagating.Other phase-shifting elements can be similarly solid It is fixed and configured.

Therefore, DRx modules 710 include DRx controllers 702, be configured to optionally to activate the inputs of DRx modules 710 with One or more of multiple paths between the output of DRx modules 710.DRx modules 710 also include multiple amplifier 314a- Each amplifier in 314d, multiple amplifier 314a-314d sets and configured along one path of correspondence in multiple paths To be amplified to the signal received at amplifier.DRx modules also include multiple phase-shifting elements 724a-724d, Duo Gexiang The each phase-shifting elements moved in part 724a-724d are arranged and configured to transmission along one path of correspondence in multiple paths Phase shift is carried out by the signal of phase-shifting elements.

In some embodiments, the first phase-shifting elements 724a along with first frequency band (for example, the first bandpass filter 313a frequency band) corresponding first path sets, and it is configured to signal to passing through the first phase-shifting elements 724a Second frequency band (for example, the second bandpass filter 313b frequency band) carries out phase shift so that edge is corresponding with second frequency band The initial signal of second propagated and the reflected signal propagated along first path same phase at least in part.

In some embodiments, the first phase-shifting elements 724a is additionally configured to passing through the first phase-shifting elements 724a's The 3rd frequency band (for example, the 3rd bandpass filter 313c frequency band) of signal carries out phase shift so that edge and the 3rd frequency band The initial signal of corresponding 3rd propagated and the reflected signal propagated along first path same phase at least in part.

Similarly, in some embodiments, the second phase-shifting elements 724b set along the second path is configured to transmission Phase shift is carried out by the first frequency band of the second phase-shifting elements 724b signal so that the initial signal propagated along first path with Along the reflected signal same phase at least in part of the second propagated.

Fig. 8 shows that in certain embodiments diversity receiver configuration 800 can include DRx modules 810, DRx modules 810 have one or more impedance match part 834a-834b.DRx modules 810 include being couple to antenna from DRx modules 810 Two paths of 140 output for being couple to transmission line 135 for being input to Rx modules 810.

In Fig. 8 DRx modules 810 (as in Fig. 6 A DRx modules 610), demultiplexer and bandpass filtering Device is embodied as duplexer 611.Duplexer 611 includes being couple to the input of antenna, is couple to the first impedance match part 834a's First output and the second output for being couple to the second impedance match part 834b.At the first output, duplexer 611 is exported Signal that input (for example, from antenna 140) is received, filtering to first frequency band.At the second output, duplexer 611 Signal that output is received in input, filtering to second frequency band.

Each impedance match part 834a-834b is arranged between duplexer 611 and amplifier 314a-314b.As above institute State, each in amplifier 314a-314b is set along one path of correspondence in each path, and is configured to amplification in amplification The signal received at device.Amplifier 314a-314b output is fed to signal combiner 612.

Signal combiner 612 includes being couple to the first amplifier 314a the first input, is couple to the second amplifier 314b Second input and be couple to DRx modules 610 output output.Signal at the output of signal combiner is the first input With the signal sum of the second input.

When antenna 140 receives signal, the signal is filtered to first frequency band by duplexer 611, and passes through first Amplifier 314a is propagated along first path.Similarly, the signal is filtered to second frequency band by duplexer 611, and passes through Two amplifier 314b are along the second propagated.

Each path can be characterized by noise coefficient and gain.The noise coefficient in each path along path by setting The expression of the deterioration of signal to noise ratio (SNR) caused by amplifier and impedance match part.Especially, the noise coefficient in each path Be impedance match part 834a-834b input SNR and amplifier 314a-314b output at SNR between decibel (dB) it is poor.Thus, noise coefficient be amplifier noise output with have identical gain " ideal " amplifier (it does not produce and made an uproar Sound) the difference of noise output measure (measure).Similarly, the gain in each path is the amplifier by being set along path With the expression of the gain caused by impedance match part.

The noise coefficient in each path and gain can be different for different frequency bands.For example, first path can With with the in-band noise coefficient for first frequency band and the out-of-band noise coefficient with interior gain and for second frequency band With with outer gain.Similarly, the second path can have for the in-band noise coefficient of second frequency band and with interior gain and For the out-of-band noise coefficient of first frequency band and with outer gain.

DRx modules 810 can also by for different frequency band can be different noise coefficient and gain characterize.Especially Ground, the noise coefficient of DRx modules 810 is between the SNR at the output of the SNR and DRx modules 810 of the input of DRx modules 810 DB it is poor.

The noise coefficient in (at each frequency band) each path and gain can depend, at least partially, on impedance matching Part 834a-834b (at each frequency band) impedance.Therefore, it will be advantageous that, impedance match part 834a-834b resistance The anti-in-band noise coefficient for causing each path minimizes and/or caused the interior gain of band in each path to maximize.Therefore, one In a little embodiments, each impedance match part 834a-834b is configured to (with lacking this impedance match part 834a-834b DRx modules compare) reduce the in-band noise coefficient of its respective paths and/or increase the interior gain of band of its respective paths.

Because being combined along the signal of two propagateds by signal combiner 612, amplifier is produced or amplification Out-of-band noise can have a negative impact to composite signal.For example, the first amplifier 314a produced by or amplification out-of-band noise meeting Increase the noise coefficient at second frequency of DRx modules 810.Therefore, it will be advantageous that, impedance match part 834a-834b Impedance cause each path out-of-band noise coefficient minimize and/or cause each path the outer gain minimization of band.Therefore, In some embodiments, each impedance match part 834a-834b is configured to (with lacking this impedance match part 834a- 834b DRx modules are compared) reduce the out-of-band noise coefficient of its respective paths and/or reduce the outer gain of band of its respective paths.

Impedance match part 834a-834b can be embodied as passive circuit.Especially, impedance match part 834a-834b can Rlc circuit is embodied as, and includes one or more passive components of such as resistor, inductor and/or capacitor etc.Nothing Source block can be in parallel and/or is connected in series, and can be connected to output and the amplifier 314a-314b of duplexer 611 Input between, or can be connected between output and the ground voltage of duplexer 611.In some embodiments, impedance matching Part 834a-834b be integrated into in amplifier 314a-314b identical chips or identical encapsulation on.

It will be advantageous that as described previously for particular path, impedance match part 834a-834b impedance to make an uproar in band Sonic system number is minimized, and is maximized with interior gain, and out-of-band noise coefficient is minimized, and with outer gain minimization.With only two kinds certainly By spending (for example, impedance at the impedance of first frequency band and second frequency band) or other various constraints (for example, component count Amount, cost, die space) it is designed for realizing that all the impedance match part 834a-834b of this four targets is probably to have Challenge.Therefore, in some embodiments, make in-band noise coefficient subtract the interior measurement of the band with interior gain to minimize, and make Out-of-band noise coefficient adds the outer measurement of the band with outer gain to minimize.It is designed for realizing all the two targets with various constraints Impedance match part 834a-834b may be still to have challenge.Therefore, in some embodiments, according to one group of constraint Come make with it is interior measurement minimize, and according to the group constrain and make with it is interior measurement increase be not more than a threshold quantity (for example, 0.1dB, 0.2dB, 0.5dB or any other value) additional constraint come make with it is outer measurement minimize.Therefore, impedance match part is configured to In-band noise coefficient is subtracted into the interior measurement of the band with interior gain to be reduced to interior measurement minimum value (for example, according to any constraint most It is small may be with interior measurement) a threshold quantity within.Impedance match part is additionally configured to add out-of-band noise coefficient with outer gain It is reduced to outer measurement with measurement (in-band-constrained out-of-band metric) minimum value outside interior restraint strap, For example, the minimum according to the additional constraint for making to be not more than a threshold quantity with interior measurement increase may be with outer measurement.In some implementations In mode, make (by what is weighted with intrinsic factor) with interior measurement plus (by what is weighted with extrinsic factor) with outer measurement according to any constraint Composite metric (composite metric) minimize.

Therefore, in some embodiments, each impedance match part 834a-834b is configured to (for example, by reducing band Interior noise coefficient, increase with interior gain, or both come) reducing the interior measurement of band of its respective paths, (it is interior that in-band noise coefficient subtracts band Gain).In some embodiments, each impedance match part 834a-834b is additionally configured to (for example, being made an uproar outside by reducing band Sonic system number, reduce with outer gain, or both come) reduce its respective paths band it is outer measurement (out-of-band noise coefficient add with it is outer increase Benefit).

In some embodiments, by reducing with outer measurement, impedance match part 834a-834b reduces DRx modules 810 One or more frequency bands at noise coefficient, without the noise coefficient at the substantive other frequency bands of increase.

Fig. 9 shows that in certain embodiments diversity receiver configuration 900 can include DRx modules 910, DRx modules 910 have adjustable impedance matching block 934a-934d.It is logical that each adjustable impedance matching block 934a-934d can be configured to presentation The impedance for crossing the impedance-tumed signal that receives from DRx controllers 902 to control.

Diversity receiver configuration 900 includes DRx modules 910, and it has the input for being couple to antenna 140 and is couple to transmission The output of circuit 135.DRx modules 910 are included in multiple paths between the input and output of DRx modules 910.In some implementations In mode, DRx modules 910 include between input and output, one or more bypasses by being controlled by DRx controllers 902 One or more bypass path (not shown) of switch activator.

DRx modules 910 include multiple multiplexer paths, and it includes inputoutput multiplexer 311 and output multiplexer 312.Multiplexing Device path include multiple module upper pathways (as shown in the figure), it include inputoutput multiplexer 311, bandpass filter 313a-313d, can Adjust impedance match part 934a-934d, amplifier 314a-314d and output multiplexer 312.Multiplexer path may also comprise One or more module outer pathway (not shown), as described above.Similarly, as described above, amplifier 314a-314d can be variable Gain amplifier and/or variable current amplifier.

Adjustable impedance matching block 934a-934d can be adjustable T circuits, adjustable PI circuits or any other adjustable With circuit.Adjustable impedance matching block 934a-934d may include one or more units of variances, such as resistor, inductor and Capacitor.Units of variance can be in parallel and/or is connected in series, and can be connected to the output of inputoutput multiplexer 311 with putting Between big device 314a-314b input, or it can be connected between output and the ground voltage of inputoutput multiplexer 311.

DRx controllers 902 are configured to optionally activate one or more of multiple paths between input and output. In some embodiments, DRx controllers 902 are configured to DRx controllers 902 (for example, from communication controler) and received To band selected signal optionally activate one or more of multiple paths path.DRx controllers 902 can pass through For example enable or forbid amplifier 314a-314d, control multiplexer 311,312, or by other mechanism as described above, come Optionally activated path.

In some embodiments, DRx controllers 902 are configured to adjust adjustable impedance matching block 934a-934d It is humorous.In some embodiments, DRx controllers 902 based on band selected signal come to adjustable impedance matching block 934a-934d It is tuned.For example, DRx controllers 902 can be tuned based on look-up table to adjustable impedance matching block 934a-934d, The look-up table is associated with tuner parameters by the frequency band indicated by band selected signal (or frequency band group).Accordingly, in response to Impedance-tumed signal can be sent to the adjustable impedance matching block of each activated path by band selected signal, DRx controllers 902 934a-934d, to be tuned according to tuner parameters to adjustable impedance matching block (or its units of variance).

In some embodiments, DRx controllers 902, which are based at least partially on, is sent for controlling amplifier 314a-314d gain and/or the amplifier control signal of electric current are adjusted to adjustable impedance matching block 934a-934d It is humorous.

In some embodiments, DRx controllers 902 are configured to the adjustable impedance matching block to each activated path 934a-934d is tuned so that in-band noise coefficient minimizes (or reduction), maximizes (or increase) with interior gain, each The out-of-band noise coefficient of other activated paths is minimized (or reduction), and/or the outer gain of band of each other activated paths is minimum Change (or reduction).

In some embodiments, DRx controllers 902 are configured to the adjustable impedance matching block to each activated path 934a-934d is tuned so that minimize (or reduction) with interior measurement (in-band noise coefficient subtracts with interior gain), and each The outer measurement (out-of-band noise coefficient adds with outer gain) of band of other activated paths minimizes (or reduction).

In some embodiments, DRx controllers 902 are configured to the adjustable impedance matching block to each activated path 934a-934d is tuned so that make to minimize (or reduction) with interior measurement according to one group of constraint, and according to group constraint With the additional constraint for making to be no more than a threshold quantity (for example, 0.1dB, 0.2dB, 0.5dB or any other value) with interior measurement increase To make the outer measurement of the band of each other activated paths minimize (or reduction).

Therefore, in some embodiments, DRx controllers 902 are configured to the adjustable impedance matching to each activated path Part 934a-934d is tuned so that in-band noise coefficient is subtracted the interior measurement of the band with interior gain by adjustable impedance matching block It is reduced within the threshold quantity with interior measurement minimum value (for example, the minimum according to any constraint may be with interior measurement).DRx is controlled Device 902 processed may be additionally configured to be tuned the adjustable impedance matching block 934a-934d of each activated path so that can resistance trimming Out-of-band noise coefficient is added the outer measurement of the band with outer gain to be reduced to measuring minimum value (example outside interior restraint strap by anti-matching block Such as, may be with outer measurement according to the minimum for the additional constraint for making to be no more than a threshold quantity with interior measurement increase).

In some embodiments, DRx controllers 902 are configured to the adjustable impedance matching block to each activated path 934a-934d is tuned so that make (by what is weighted with intrinsic factor) according to any constraint with interior measurement plus (by each other Activated path is weighted with extrinsic factor) composite metric of the outer measurements of band of each other activated paths minimizes.

Adjustable impedance matching block 934a-934d units of variance can be tuned as having by DRx controllers 902 is used for difference The different value of frequency band group.

In some embodiments, adjustable impedance matching block 934a-934d using DRx controllers 902 it is untunable or The blocked impedance matching block of control replaces.In each impedance match part along corresponding with a frequency band in multiple paths Each impedance match part for setting of one path of correspondence can be configured to reductions (or minimum) for one frequency band The interior measurement of band and reduce (or minimize) and be used for outside band of one or more of the other frequency band (for example, each other frequency bands) Measurement.

For example, the 3rd impedance match part 934c can be fixed and be configured as (1) and reduce for the 3rd frequency The interior measurement of the band of band, (2) reduce for the outer measurement of the band of first frequency band, and (3) reduce for the outer measurement of the band of second frequency band, And/or (4) reduce for the outer measurement of the band of the 4th frequency band.Other impedance match parts can be similarly fixed and enter Row configuration.

Therefore, DRx modules 910 include DRx controllers 902, be configured to optionally to activate the inputs of DRx modules 910 with One or more of multiple paths between the output of DRx modules 910.DRx modules 910 also include multiple amplifier 314a- Each amplifier in 314d, multiple amplifier 314a-314d sets and configured along one path of correspondence in multiple paths To be amplified to the signal received at amplifier.DRx modules 910 also include multiple impedance match part 934a-934d, Each impedance match part in multiple impedance match part 934a-934d is set simultaneously along one path of correspondence in multiple paths And it is configured to reduce the out-of-band noise coefficient in one path in multiple paths or with least one in outer gain.

In some embodiments, the first impedance match part 934a along with first frequency band (for example, the first bandpass filtering Device 313a frequency band) corresponding first path be arranged and configured to reduce be used for second frequency band corresponding with the second path The out-of-band noise coefficient of (for example, the second bandpass filter 313b frequency band) or with least one in outer gain.

In some embodiments, the first impedance match part 934a is additionally configured to reduce for corresponding with the 3rd path The out-of-band noise coefficient of 3rd frequency band (for example, the 3rd bandpass filter 313c frequency band) or with least one in outer gain It is individual.

Similarly, in some embodiments, the second impedance match part 934b set along the second path is configured to subtract It is small for the out-of-band noise coefficient of first frequency band or with least one in outer gain.

Figure 10 shows that in certain embodiments diversity receiver configuration 1000 can include DRx modules 1010, DRx moulds Block 1010 has the adjustable impedance matching block being arranged at input and output.DRx modules 1010 may include it is one or more can Impedance match part is adjusted, one or more of the input and output of DRx modules 1010 place is arranged on.Especially, DRx modules 1010 may include to be arranged on the input adjustable impedance matching block 1016 of the input of DRx modules 1010, be arranged on DRx modules Output adjustable impedance matching block 1017 at 1010 output, or both.

The multiple frequency bands received on identical diversity antenna 140 unlikely all see preferable impedance Match somebody with somebody.In order that matching each frequency band with compact match circuit, adjustable input resistant matching part 1016 may be implemented in DRx The input of module 1010 and by DRx controllers 1002 (for example, based on band selected signal from communication controler) control System.For example, DRx controllers 1002 can be tuned based on look-up table to adjustable input resistant matching part 1016, the lookup Table is associated with tuner parameters by the frequency band indicated by band selected signal (or frequency band group).Accordingly, in response to frequency band choosing Signal is selected, input impedance tuning signal can be sent to adjustable input resistant matching part 1016 by DRx controllers 1002, with basis Tuner parameters are tuned to adjustable input resistant matching part (or its units of variance).

Adjustable input resistant matching part 1016 can be adjustable T circuits, adjustable PI circuits or any other adjustable matching Circuit.Especially, adjustable input resistant matching part 1016 may include one or more units of variances, such as resistor, inductance Device and capacitor.Units of variance can be in parallel and/or is connected in series, and can be connected to the inputs of DRx modules 1010 with Between the input of first multiplexer 311, or it can be connected between input and the ground voltage of DRx modules 1010.

Similarly, with the letter of only transmission lines 135 (or, at least, a small amount of transmission line) many frequency bands of posting Number, unlikely multiple frequency bands all see preferable impedance matching.In order that being matched with compact match circuit every Individual frequency band, adjustable output impedance matching block 1017 may be implemented at the output of DRx modules 1010 and by DRx controllers 1002 (for example, based on band selected signals from communication controler) are controlled.For example, DRx controllers 1002 can be based on lookup Table is tuned to adjustable output impedance matching block 1017, the frequency band that the look-up table will be indicated by band selected signal (or frequency band group) is associated with tuner parameters.Accordingly, in response to band selected signal, DRx controllers 1002 can hinder output Anti- tuning signal is sent to adjustable output impedance matching block 1017, with according to tuner parameters come to adjustable output impedance matching part Part (or its units of variance) is tuned.

Adjustable output impedance matching block 1017 can be adjustable T circuits, adjustable PI circuits or any other adjustable matching Circuit.Especially, adjustable output impedance matching block 1017 may include one or more units of variances, such as resistor, inductance Device and capacitor.Units of variance can be in parallel and/or is connected in series, and can be connected to the output of the second multiplexer 312 Between output with DRx modules 1010, or it can be connected between output and the ground voltage of the second multiplexer 312.

Figure 11 shows that in certain embodiments diversity receiver configuration 1100 can include DRx modules 1110, DRx moulds Block 1110 has multiple tunable components.Diversity receiver configuration 1100 includes DRx modules 1110, and it, which has, is couple to antenna 140 Input and be couple to the output of transmission line 135.DRx modules 1110 are included between the input and output of DRx modules 1110 Multiple paths.In some embodiments, DRx modules 1110 include between input and output, by by DRx controllers One or more bypass path (not shown) of one or more by-pass switches activation of 1102 controls.

DRx modules 1110 include multiple multiplexer paths, and it includes inputoutput multiplexer 311 and output multiplexer 312.Multiplexing Device path includes multiple module upper pathways (as shown in the figure), and it includes adjustable input resistant matching part 1016, inputoutput multiplexer 311st, bandpass filter 313a-313d, adjustable impedance matching block 934a-934d, amplifier 314a-314d, tunable phase shift portion Part 724a-724d, output multiplexer 312 and adjustable output impedance matching block 1017.Multiplexer path may also comprise one Or multiple module outer pathway (not shown), as described above.Similarly, as described above, amplifier 314a-314d can be variable gain Amplifier and/or variable current amplifier.

DRx controllers 1102 are configured to optionally activate one or many in multiple paths between input and output It is individual.In some embodiments, DRx controllers 1102 are configured to DRx controllers 1102 (for example, from communication controler) institute The band selected signal received optionally activates one or more of multiple paths path.DRx controllers 902 can be with For example, by enabling or forbidding amplifier 314a-314d, multiplexer 311,312 is controlled, or pass through other machines as described above System, carrys out optionally activated path.In some embodiments, DRx controllers 1102 are configured to send amplifier control signal To the one or more amplifier 314a-314d set respectively along one or more activated paths.Amplifier control signal is controlled The gain (or electric current) of its amplifier being sent to.

DRx controllers 1102 are configured to be tuned one or more of following part：Adjustable input impedance With part 1016, adjustable impedance matching block 934a-934d, tunable phase shift part 724a-724d and adjustable output impedance With part 1017.For example, DRx controllers 1102 can be tuned based on look-up table to tunable component, the look-up table will be by frequency The frequency band (or frequency band group) indicated with selection signal is associated with tuner parameters.Accordingly, in response to band selected signal, Tuning signal can be sent to (activated path) tunable component by DRx controllers 1101, with according to tuner parameters come to adjustabel part Part (or its units of variance) is tuned.In some embodiments, DRx controllers 1102 be based at least partially on sent with For controlling amplifier 314a-314d gain and/or the amplifier control signal of electric current to be tuned tunable component. In various embodiments, one or more tunable components can be replaced by the fixed component not controlled by DRx controllers 1102.

To be understood, the tuning of a tunable component may influence the tuning of other tunable components.Thus, in look-up table Tuner parameters for the first tunable component can be based on the tuner parameters for the second tunable component.For example, for tunable phase shift Part 724a-724d tuner parameters can be based on the tuner parameters for adjustable impedance matching block 934a-934d.As another Example, the tuner parameters for adjustable impedance matching block 934a-934d can be based on being used for adjustable input resistant matching part 1016 tuner parameters.

Figure 12 shows the embodiment that the flow of the method for processing RF signals is represented.In some embodiments (and As it is following be described in detail as example), method 1200 is performed by the controller of such as Figure 11 DRx controllers 1102 etc. In some embodiments, method 1200 including hardware, firmware, software or the processing logic of its combination by performing.At some In embodiment, method 1200 is by performing the code of storage in non-transitory computer-readable medium (for example, memory) Processor is performed.In short, method 1200 includes frequency acceptance band selection signal and route along one or more tuning paths The RF signals received are to handle received RF signals.

Method 1200 is started from block 1210, wherein controller frequency acceptance band selection signal.Controller can be from another control Device frequency acceptance band selection signal, or can be from cellular basestation or other external source frequency acceptance band selection signals.Frequency band selection Signal may indicate that wireless device transmitting and receive one or more frequency bands of RF signals.In some embodiments, frequency band is selected Selecting signal designation is used for the class frequency band that carrier aggregation communicates.

At block 1220, controller is based on band selected signal optionally to activate diversity receiver (DRx) module One or more paths.As described above, DRx modules may include (being couple to one or more antennas) one in DRx modules Or multiple paths between multiple inputs and (being couple to one or more transmission lines) one or more outputs.Path Ke Bao Include bypass path and multiplexer path.Multiplexer path may include module upper pathway and module outer pathway.

Controller can for example, by open or closed one or more by-pass switches, via amplifier enable signal enable or Forbid the amplifier set along path, it is one or more multiple via separator control signal and/or the control of combiner control signal With device, or by other mechanism, optionally to activate one or more of multiple paths.For example, controller can disconnect Or the switch that is set along path is connected, or the gain of the amplifier set along path is set to substantially zeroed.

At block 1230, controller send tuning signal to along one or more activated paths set it is one or more can Adjust part.Tunable component may include one or more of following part：The adjustable input set in the input of DRx modules Impedance match part, respectively along multiple paths set multiple adjustable impedance matching blocks, respectively along multiple paths set it is many Individual tunable phase shift part or the adjustable output impedance matching block set at the output of DRx modules.

Controller can be tuned based on look-up table to tunable component, and the look-up table will be indicated by band selected signal Frequency band (or frequency band group) is associated with tuner parameters.Accordingly, in response to band selected signal, DRx controllers will can be tuned Signal is sent to (activated path) tunable component, with according to tuner parameters come to adjustable (tunable) part, (or its is variable (variable) part) it is tuned.In some embodiments, controller, which is based at least partially on, is sent for control The gain of the one or more amplifiers set respectively along one or more activated paths and/or the amplifier control signal of electric current To be tuned to tunable component.

Figure 13 shows that in certain embodiments some or all diversity receivers are configured (for example, that shown in Fig. 3-11 It can implement whole or in part in a module a bit).Such module can be such as front-end module (FEM).Such mould Block can be such as diversity receiver (DRx) FEM.In the example in figure 13, module 1300 can include package substrate 1302, many Individual part may be mounted in such package substrate 1302.For example, (it may include that front-end power management is integrated to controller 1304 Circuit (FE-PIMC)), (it may include the amplification of one or more variable gains to low noise amplification device assembly (assembly) 1306 Device), (it may include one or more fixations or tunable phase shift part 1331 and one or more fixations or can matching block 1308 Adjust impedance match part 1332), (it may include one or more band logicals filters for multiplexer elements 1310 and wave filter group 1312 Ripple device) it can install and/or implement in package substrate 1302 and/or interior.Such as multiple surface mounting technique (SMT) devices 1314 Etc other parts can also be arranged on package substrate 1302 on.Although all parts are all depicted as to be deployed in envelope On fitted lining bottom 1302, it will be understood that, it can just implement other parts on some of the components.

In some embodiments, device and/or circuit with one or more features described here can be wrapped Include in the RF electronic installations of such as wireless device etc.This device and/or circuit directly can be implemented in a wireless device, Implemented with modular form as described herein or implemented with their certain combination.In certain embodiments, it is this without traditional thread binding Cell phone, smart phone, the wireless handheld device with and without telephony feature, wireless flat computer can for example be included by putting Deng.

Figure 14 depicts the example wireless device 1400 with one or more favorable characteristics described here.With In the context of one or more modules of one or more features as described herein, such module can be usually by void Wire frame 1401 (it can be embodied as such as front-end module), diversity RF modules 1411 (it can be embodied as such as downstream module) and Diversity receiver (DRx) module 1300 (it can be embodied as such as front-end module) is represented.

With reference to Figure 14, power amplifier (PA) 1420 can receive its corresponding RF signals, transceiver from transceiver 1410 1410 can configure and operate in known manner the RF signals that amplify and launch for generation, and handle received letter Number.Transceiver 1410 is shown as to interact with baseband subsystems 1408, baseband subsystems 1408, which are configured to supply, to be suitable to The data and/or voice signal of user and suitable for the conversion between the RF signals of transceiver 1410.Transceiver 1410 can also be with Power management components 1406 are communicated, and power management components 1406 are configured to the work(that management is used to operate wireless device 1400 Rate.This power management can also control the operation of baseband subsystems 1408 and module 1401,1411 and 1300.

Baseband subsystems 1408 are shown as to be connected to user interface 1402, in order to provide a user and receive from user Speech and/or data various inputs and output.Baseband subsystems 1408 may be also connected to memory 1404, memory 1404 are configured to data and/or the instruction that storage is used to be easy to the operation of wireless device, and/or provide a user depositing for information Storage.

In example wireless device 1400, each PA 1420 output is shown as (via corresponding match circuit 1422) It is matched and is routed to their corresponding duplexers 1424.It can be amplified this and filtered letter by duplexer 1414 Number primary antenna 1416 is routed to, for transmitting.In certain embodiments, duplexer 1424 can allow to use community antenna (for example, primary antenna 1416) operates simultaneously to perform transmitting and receive.In fig. 14, received signal is shown as route To can for example include " receive (Rx) " path of low-noise amplifier (LNA).

Wireless device also includes diversity antenna 1426 and receives the diversity receiver mould of the signal from diversity antenna 1426 Block 1300.Diversity receiver module 1300 handles received signal and sends out the signal after processing via transmission line 1435 It is sent to diversity RF modules 1411, diversity RF modules 1411 are feeding signals to processing letter of taking a step forward of transceiver 1410 Number.

The one or more features for implementing the application can be brought using various honeycomb frequencies as described herein.In table The example of these frequency bands is listed in 1.It will be understood that, at least some in the frequency band can be divided into sub-band.Will also reason Solution, one or more features of the application can be with the frequency for specifying (designation) without such as example of table 1 etc Scope is implemented together.

Table 1

Unless context is clearly required otherwise, otherwise through specification and claims, according to exclusiveness or The adversative inclusive meaning of exhaustive, that is to say, that term " bag is explained according to the meaning of " including but is not limited to " Include (comprise) ", " include (comprising) " etc..The term " coupling " used as herein refers to two or more Element can be directly connected or be connected by means of one or more intermediary elements.In addition, ought use in this application When, term " herein ", " above ", the term of " following " and similar implication should refer to as overall the application, rather than Any specific part of the application.When context allows, it can also be divided using the term in the above description of odd number or plural number Bao Kuo not plural number or odd number.Refer to the term "or" during list of two or more projects, this term cover the term with Whole in lower explanation：Any combinations of project in any project in list, all items in list and list.

The embodiment of the present invention it is discussed in detail above being not intended to be exhaustive, or limit the invention to disclosed above Precise forms.Although describing the specific embodiment of the present invention and the example for the present invention for purposes of illustration above, But as the skilled person will recognize, various equivalent modifications within the scope of the present invention are possible.Although for example, Processing or block are presented according to given order, but the embodiment replaced can perform processing the step of with different order, Or using the system of the block with different order, and some processing or block can be deleted, move, add, subtract, combine And/or modification.Can realize in various ways these processing or block in each.Similarly, in spite of when Processing or block are shown as serially performing, but on the contrary, these processing or block can also be performed in parallel, or can be Different time is performed.

The teachings of the present invention provided herein can be applied to other systems, without being above-mentioned system.Can be with The element and action of each above-mentioned embodiment are combined, to provide further embodiment.

Although it have been described that some embodiments of the present invention, but present these implementations simply by means of example Example, and the embodiment is not intended to limit scope of the present application.In fact, it can implement herein according to various other forms The novel method and system of description；Furthermore, it is possible to make the formal various omissions of method and system described here, replace Change and change, without departing from spirit herein.Accompanying drawing and their equivalent are intended to cover such as fall into the model of the application Enclose and this form in spirit or modification.

Claims

1. a kind of reception system, including：

First amplifier, the input for being arranged at the reception system along first path corresponding with first frequency band is received with described Between the output of system；

Second amplifier, the input for being arranged at the reception system along the second path corresponding with second frequency band is received with described Between the output of system；And

First phase-shifting elements, are set along the first path, and are configured to first amplifier in the described second frequency Phase in-migration caused by rate band carries out phase shift to the second frequency band for passing through the signal of first phase-shifting elements.

2. reception system as claimed in claim 1, in addition to the second phase-shifting elements, it is set along second path, and Second amplifier phase in-migration caused by the first frequency band is configured to passing through second phase shift The first frequency band of the signal of part carries out phase shift.

3. reception system as claimed in claim 1, wherein, first phase-shifting elements are additionally configured to based on the described first amplification Device phase in-migration caused by the 3rd frequency band is carried out to the 3rd frequency band for passing through the signal of first phase-shifting elements Phase shift.

4. reception system as claimed in claim 1, wherein, first phase-shifting elements are configured to put by described first The backpropagation of big device and by the phase in-migration caused by the forward-propagating of first amplifier to passing through described first The second frequency band of the signal of phase-shifting elements carries out phase shift.

5. reception system as claimed in claim 1, in addition to multiplexer, it is configured in the input of the reception system The input signal received is separated into the first signal of the first frequency band propagated along the first path and along second tunnel The secondary signal for the second frequency band that footpath is propagated.

6. reception system as claimed in claim 5, wherein, first phase-shifting elements are configured to also based on the multiplexer exist Phase in-migration caused by the second frequency band is carried out to the second frequency band for passing through the signal of first phase-shifting elements Phase shift.

7. reception system as claimed in claim 5, wherein, first phase-shifting elements, which are integrated into, is arranged on the multiplexer In the first impedance match part between first amplifier.

8. reception system as claimed in claim 7, wherein, first impedance match part, which has, is based on the first frequency Impedance with selection, to reduce the first path for the noise coefficient of the first frequency band and/or increase described first Gain of the path for the first frequency band.

9. reception system as claimed in claim 8, wherein, first impedance match part, which has, is based on the second frequency With selection impedance, with reduce the first path for the second frequency band noise coefficient or the first path for At least one in the gain of the second frequency band.

10. reception system as claimed in claim 5, in addition to signal combiner, its be configured to combination first signal and The secondary signal.

11. reception system as claimed in claim 10, wherein, first phase-shifting elements be arranged on the signal combiner with Between first amplifier.

12. reception system as claimed in claim 1, wherein, first phase-shifting elements are configured to passing through described The second frequency band of the signal of one phase-shifting elements carries out phase shift so that along the initial signal of second propagated and along described The reflected signal same phase at least in part that first path is propagated.

13. reception system as claimed in claim 12, wherein, first phase-shifting elements are configured to passing through described The second frequency band of the signal of one phase-shifting elements carries out phase shift so that the amplitude of the initial signal and the reflected signal sum More than the amplitude of the initial signal.

14. reception system as claimed in claim 12, wherein, first phase-shifting elements are configured to passing through described The second frequency band of the signal of one phase-shifting elements carries out phase shift so that the phase between the initial signal and the reflected signal Difference is 360 degree of integral multiple.

15. reception system as claimed in claim 1, wherein, first phase-shifting elements are tunable phase shift parts, and it is configured to Second frequency band one amount of phase shift of the signal of first phase-shifting elements is will pass through, the amount from controller by receiving Phase shift tuning signal control.

16. reception system as claimed in claim 1, wherein, first phase-shifting elements are passive circuits.

17. a kind of radio frequency module, including：

Package substrate, is configured to accommodate multiple parts；And

Reception system, implements in the package substrate, the reception system includes：First amplifier, edge and first frequency band Corresponding first path is arranged between the input of the reception system and the output of the reception system；Second amplifier, edge The second path corresponding with second frequency band is arranged between the input of the reception system and the output of the reception system；With And first phase-shifting elements, set along the first path, and be configured to first amplifier in the second frequency Phase shift is carried out to the second frequency band for passing through the signal of first phase-shifting elements with phase in-migration caused by place.

18. RF modules as claimed in claim 17, wherein, the RF modules are diversity receiver front-end module (FEM).

19. a kind of wireless device, including：

First antenna, is configured to receive the first radio frequency rf signal；

First front-end module FEM, communicates with the first antenna, and the first FEM includes being configured to accommodate the envelope of multiple parts Fitted lining bottom, the first FEM also includes implementing the reception system in the package substrate, and the reception system includes：First Amplifier, is arranged at inputting for the reception system defeated with the reception system along first path corresponding with first frequency band Between going out；Second amplifier, along the second path corresponding with second frequency band be arranged at the input of the reception system with it is described Between the output of reception system；And first phase-shifting elements, set along the first path, and be configured to described first Amplifier phase in-migration caused by the second frequency band is to passing through the second frequency of the signal of first phase-shifting elements Rate band carries out phase shift；And

Transceiver, is configured to receive the processing version of the first RF signals from the output of the first FEM via transmission line, And data bit is generated based on the processing version of the first RF signals.

20. wireless device as claimed in claim 19, in addition to be configured to receive the second antenna of the second radio frequency rf signal with And the second front-end module FEM with second antenna communication, the transceiver arrangement is to be received from the output of the 2nd FEM The processing version of the 2nd RF signals, and data bit is generated based on the processing version of the 2nd RF signals.