CN105577206B

CN105577206B - Diversity receiver front end system with phase-shifting elements

Info

Publication number: CN105577206B
Application number: CN201510717254.XA
Authority: CN
Inventors: S·R·M·沃洛泽西亚克
Original assignee: Conexant Systems LLC
Current assignee: Conexant Systems LLC
Priority date: 2014-10-31
Filing date: 2015-10-29
Publication date: 2017-03-29
Anticipated expiration: 2035-10-29
Also published as: KR101737231B1; GB2572882B; JP2016103819A; JP6470373B2; GB2572881A; SG10201609056PA; GB201909000D0; HK1223204A1; JP6525935B2; JP2018061252A; JP6882366B2; TWI611673B; TW201631909A; TW201630367A; SG10201609086TA; GB2572886A; SG10201508954PA; JP2019165476A; JP2019092178A; SG10201508952RA

Abstract

Diversity receiver front end system with phase-shifting elements.A kind of reception system can include controller, be configured to optionally activate one or more in the multiple paths between the input of the reception system and the output of the reception system.The reception system may also include multiple amplifiers, and one path of correspondence of each amplifier in the plurality of amplifier in the plurality of path is arranged and configured to be amplified the signal received at the amplifier.The reception system can also include multiple phase-shifting elements, and one path of correspondence of each phase-shifting elements in the plurality of phase-shifting elements in the plurality of path is arranged and configured to the signal to passing through the phase-shifting elements carries out phase shift.

Description

Diversity receiver front end system with phase-shifting elements

Cross-Reference to Related Applications

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

Technical field

Present invention relates generally to have the wireless communication system of 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 given 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 is placed and must be physically remote from main antenna (primary antenna).When two antennas are all used simultaneously, transceiver can process the signal from two antennas and be 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 One or many in multiple paths between the input of the reception system and the output of the reception system is activated optionally It is individual.The reception system also includes multiple amplifiers.Each amplifier in the plurality of amplifier is along the plurality of 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 plurality of impedance match part is along the plurality of path In one path of correspondence be arranged and configured to reduce the out-of-band noise coefficient in the one path in the plurality of path (noise figure) or with least one of outer gain.

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

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

In certain embodiments, first impedance match part is also configured as the first frequency band, is subtracted In small band, noise coefficient or increase are with interior gain.In certain embodiments, first impedance match part be configurable to by The in-band noise coefficient subtracts the interior tolerance (metric) of the band with interior gain and is reduced to interior tolerance minima (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 tolerance of the band with outer gain are reduced to minima (in-band-constrained is measured outside interior restraining belt 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 of the corresponding multiple frequency bands along the plurality of propagated.In some embodiments In, each impedance match part in the plurality of impedance match part can be arranged on the multiplexer with the plurality of 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 plurality of propagated.

In certain embodiments, at least one of the plurality of impedance match part impedance match part can be passive Circuit.In certain embodiments, at least one of the plurality of impedance match part impedance match part can be RLC electric Road.

In certain embodiments, at least one of the plurality of impedance match part 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 of the first path setting corresponding with first frequency band in the plurality of path Impedance match part is also configured as the second frequency band of the signal to passing through first impedance match part to be carried out Phase shift so that the initial signal of the second propagated corresponding with the second frequency band in the plurality of path and along institute State reflected signal homophase (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 the reception system being implemented in the package substrate.It is described to receive system System includes controller, is configured to optionally to activate many between the input of the reception system and the output of the reception system One or more in individual path.The reception system also includes multiple amplifiers.Each amplification in the plurality of amplifier One path of correspondence of the device in the plurality of path is arranged and configured to enter the signal received at the amplifier Row amplifies.The reception system also includes multiple impedance match parts.Each impedance in the plurality of impedance match part It is arranged and configured to reduce described in the plurality of path with one path of correspondence of the part in the plurality of path The out-of-band noise coefficient in individual path or with least one of outer gain.In certain embodiments, the RF modules can be point Collection receiver front end module (FEM).

According to some teachings, the application is related to a kind of wireless device, and the wireless device includes that being configured to reception first penetrates 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 the package substrate for being configured to accommodate multiple parts.First FEM also includes being implemented 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 in multiple paths between the output of the reception system.The reception system also includes multiple amplifiers. One path of correspondence of each amplifier in the plurality of amplifier in the plurality of path is arranged, and be configured to The signal received at the amplifier is amplified.The reception system also includes multiple impedance match parts.It is the plurality of One path of correspondence of each impedance match part in impedance match part in the plurality of path is arranged, and is configured to Reduce the out-of-band noise coefficient in one path in the plurality of path or with least one of outer gain.It is described wireless Device also includes transceiver, is configured to receive the process version of a RF signals via transmission line from the output, and And based on a RF signals process version generating data bit.

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 from the output of the 2nd FEM connect Receive the process version of the 2nd RF signals, and based on the 2nd RF signals process version generating data bit.

In certain embodiments, in the plurality of impedance match part in the plurality of path with first frequency band It is corresponding with the second path in the plurality of path that the first impedance match part that corresponding first path is arranged is configured to reduction Second frequency band out-of-band noise coefficient or with least one of 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 One or many in multiple paths between the input of the reception system and the output of the reception system is activated optionally It is individual.The reception system also includes multiple amplifiers.Each amplifier in the plurality of amplifier is along the plurality of 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.Correspondence of each phase-shifting elements in the plurality of phase-shifting elements in the plurality of path one Path is arranged and configured to the signal to passing through the phase-shifting elements and carries out phase shift.

In certain embodiments, it is corresponding with first frequency band in the plurality of path in the plurality of phase-shifting elements First path arrange 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 second of the second propagated corresponding with the second frequency band in the plurality of path Initial signal and the second reflected signal homophase at least in part propagated along the first path.

In certain embodiments, the second phase-shifting elements arranged along second path in the plurality of 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 homophase 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 The 3rd frequency band of signal carry out phase shift so that the 3rd tunnel corresponding with the 3rd frequency band in the plurality of path The 3rd initial signal and the 3rd reflected signal homophase at least in part propagated along the first path that footpath is propagated.

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 are whole with 360 degree The phase contrast 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 of the corresponding multiple frequency bands along the plurality of propagated.In some embodiments In, the reception system can also include signal combiner, be configured to combine the signal along the plurality of propagated.At some In embodiment, the reception system can also include amplifier after combiner, be arranged on the signal combiner with the output Between, the signal received at amplifier after amplifier is configured to be amplified in the combiner after the combiner.In some realities Apply in example, each phase-shifting elements in the plurality of phase-shifting elements can be arranged on the signal combiner with the plurality of amplification Between a corresponding amplifier in device.In certain embodiments, at least one of the plurality of amplifier amplifier can be with Including dual-stage amplifier.

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

In certain embodiments, at least one of the plurality of phase-shifting elements 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, and the amount is by from controller reception The phase shift tuning signal control arrived.

In certain embodiments, the reception system can also include multiple impedance match parts, the plurality of impedance Arrange with one path of correspondence of each impedance match part in part in the plurality of 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 of 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 the reception system being implemented in the package substrate.It is described to receive system System includes controller, is configured to optionally to activate many between the input of the reception system and the output of the reception system One or more in individual path.The reception system also includes multiple amplifiers.Each amplification in the plurality of amplifier One path of correspondence of the device in the plurality of path is arranged and configured to enter the signal received at the amplifier Row amplifies.The reception system also includes multiple phase-shifting elements.Each phase-shifting elements in the plurality of phase-shifting elements are along described One path of correspondence in multiple paths is arranged and configured to the signal to passing through the phase-shifting elements and carries out phase shift.

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

In certain embodiments, it is corresponding with first frequency band in the plurality of path in the plurality of phase-shifting elements The first phase-shifting elements for arranging 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 second of the second propagated corresponding with the second frequency band in the plurality of path is initial Signal and the second reflected signal homophase 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 includes that being configured to reception first penetrates 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 the package substrate for being configured to accommodate multiple parts.First FEM also includes being implemented 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 in multiple paths between the output of the reception system.The reception system also includes multiple amplifiers. One path of correspondence of each amplifier in the plurality of amplifier in the plurality of path be arranged and configured to The signal received at the amplifier is amplified.The reception system also includes multiple phase-shifting elements.The plurality of phase shift One path of correspondence of each phase-shifting elements in part in the plurality of path is arranged and configured to passing through 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 process version for receiving a RF signals, and based on a RF signals process version generating data ratio 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 from the output of the 2nd FEM connect Receive the process version of the 2nd RF signals, and based on the 2nd RF signals process version generating the data ratio It is special.

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

Description of the drawings

Fig. 1 shows to have and is couple to main antenna (primary antenna) and diversity antenna (diversity The wireless device of communication module antenna).

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

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 module, diversity RF module ratio Diversity receiver (DRx) module has less amplifier.

Fig. 5 shows that in certain embodiments diversity receiver configuration can include DRx modules, and DRx module couples are 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 in certain embodiments, and diversity receiver configuration can include DRx modules, and DRx modules have and 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 process 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.

Specific embodiment

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

Fig. 1 shows the wireless device 100 with the communication module 110 for being couple to main 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 which is configured It is to be changed between signal and digital data signal in analog radio frequency (RF).For this purpose, transceiver 112 may include digital-to-analogue conversion Device, analog-digital converter, for by base-band analog signal modulation to 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 baseband processor changed or other parts.

Communication module 110 also includes RF modules 114, is coupled between main antenna 130 and transceiver 112.Because RF modules 114 can be physically proximate main antenna 130, to reduce due to the decay caused by cable (cable) loss, so RF modules 114 are referred to alternatively as front-end module (FEM).RF modules 114 analogue signal that receives from main antenna 130 can be performed process for Transceiver 112, or the analogue signal that receives from transceiver 112 is performed process for launching via main antenna 130. For this purpose, RF modules 114 may include wave filter, power amplifier, band selection switches, match circuit and other parts.It is similar Ground, communication module 110 include the diversity RF module 116 being coupled between diversity antenna 140 and transceiver 112, and which performs similar Process.

When signal is sent to wireless device, the signal can be connect at both main antenna 130 and diversity antenna 140 Receive.Main antenna 130 and diversity antenna 140 physically can be spaced apart so that the signal at main antenna 130 and diversity antenna 140 Received with different characteristics.For example, in one embodiment, main antenna 130 and diversity antenna 140 can be received and be declined with difference Subtract, the signal of noise, frequency response or phase shift.Transceiver 112 can be determined and be believed using two signals with different qualities Number corresponding data bit.In some embodiments, transceiver 112 is based on the characteristic in main antenna 130 and diversity antenna Selected between 140, such as selected the antenna 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 improving 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 main 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 receiving at diversity antenna 140 reaches communication module 110 Its decay.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 which 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, and which is configured to receive diversity signal and the diversity signal is provided to DRx FEM 210.DRx FEM 210 It is configured to perform process 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 the activation frequency bands indicated by such as controller 120.Used as another example, DRx FEM 210 can It is configured to amplify diversity signal.For this purpose, DRx FEM 210 may include wave filter, low-noise amplifier, band selection switches, With circuit and other parts.

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

Fig. 3 shows that in certain embodiments diversity receiver (DRx) configuration 300 can include DRx modules 310, DRx Module 310 is with 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 include that the single-frequency for modulating the data on single frequency band is taken a message Number.In some embodiments, diversity signal can be include modulate to the data on multiple frequency bands multi-band signal ( Referred to as frequency band configured signal).

DRx modules 310 have the input for receiving the diversity signal from diversity antenna 140 and (via transmission line 135 With diversity RF module 320) offer process after diversity signal to transceiver 330 output.The input of DRx modules 310 is fed to In the input of the first multiplexer (MUX) 311.First multiplexer 311 includes multiple multiplexer outputs, 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 includes multiple multiplexer inputs, 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, One frequency band can be the UMTS downlink or " Rx " frequency band 2 at 1930 megahertzs (MHz) and 1990MHz between, and second frequently Rate band can be the UMTS downlink or " Rx " frequency band 5 between 869MHz and 894MHz.Other downlinks can be used Frequency band, such as following described in table 1 those or other non-UMTS frequency bands.

In some embodiments, DRx modules 310 include DRx controllers 302, and which is received from controller 120 (also referred to as For communication controler) signal, and based on receive signal come optionally activate input and export 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 One or more paths in multiple paths are activated optionally.

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 which is based on the signal received from DRx controllers 302 by diversity signal The path corresponding with the frequency band of single frequency tone signal being routed in multiple paths.DRx controllers 302 can be controlled based on DRx The band selected signal that device processed 302 is received from communication controler 120 is generating the signal.Similarly, in some embodiment party In formula, the second multiplexer 312 is SPMT switches, and which 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 diversity is believed by which based on the separator control signal received from DRx controllers 302 Two or more paths corresponding with two or more frequency bands of multi-band signal number being routed in multiple paths.Signal point SPMT switches, diplexer filter or these certain combination can be embodied as from the function of device.Similarly, in some embodiment party In formula, the second multiplexer 312 is signal combiner, and which 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 from communication controler 120 based on DRx controllers 302 is generating separator control letter Number and combiner control signal.

Therefore, in some embodiments, DRx controllers 302 are configured to DRx controllers 302 (for example, from communication The band selected signal that 120) controller receives is optionally activating one or more paths in multiple paths.At some In embodiment, DRx controllers 302 are configured to pass transmission separator control signal to demultiplexer and send combiner control Signal processed selectively activates one or more paths in multiple paths to signal combiner.

DRx modules 310 include multiple band filter 313a-313d.Each edge in band filter 313a-313d One path of correspondence in multiple paths is arranged, and the signal filtering for being configured to receive at band filter is to multiple The corresponding frequencies band in the one path in path.In some embodiments, band filter 313a-313d is additionally configured to By the descending of the corresponding frequencies band in one path of the signal filtering received at band filter in 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 arranged, and is configured to be amplified in the signal received at the amplifier.

In some embodiments, amplifier 314a-314d is narrow-band amplifier, is configured to amplification and is provided with described putting 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, each in amplifier 314a-314d includes enabling/forbidding input, and base In enabling signal and be enabled (or forbidding) enabling/forbid the amplifier that input receives.Amplifier enables signal can be by DRx controllers 302 send.Therefore, in some embodiments, DRx controllers 302 are configured to pass transmission amplifier and enable letter One or more in number amplifier 314a-314d arranged to one or more paths respectively in multiple paths are selecting Property the ground multiple paths of activation in one or more.In such embodiment, not controlled by DRx controllers 302, first Multiplexer 311 can be demultiplexer, its route diversity signal to each in multiple paths, and the second multiplexer 312 can be with It is signal combiner, the signal in its each path of the combination in multiple paths.However, DRx controllers 302 are controlled wherein In the embodiment of the first multiplexer 311 and the second multiplexer 312, DRx controllers 302 can also enable (or forbidding) specific amplification Device 314a-314d is for example saving 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), one road of correspondences of each VGA in multiple paths Footpath is arranged and configured to by the gain of the amplifier control signal control received from DRx controllers 302 be amplified in VGA The signal that place receives.

The gain of VGA can be can bypass, can stepped change, can continually varying.In some embodiments, respectively At least one of 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), signal is made Bypassed fixed gain amplifier.By-pass switch can disconnect the circuit between input and output (in the second position), 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 of each VGA including 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 be amplified in the signal received at VGA.In some embodiments, at least one of each VGA continuously can become including gain The amplifier (continuously-variable gain amplifier) of change, its be configured to with amplifier control signal into The gain of ratio is being amplified in the signal received at VGA.

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 continually varying.In some embodiments, at least in each VCA It is individual including fixed current amplifier and can by amplifier control signal control by-pass switch.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, makes signal bypass fixed current Amplifier.By-pass switch can disconnect the circuit between input and output (in the second position), 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 of each VCA including electric current can stepped change amplifier, which is configured to The signal that VCA is received is amplified in by drawing the electric current of one of the multiple configuration amounts indicated by amplifier control signal. In some embodiments, at least one of each VCA include electric current can continually varying amplifier, which is configured to pass and draws The electric current proportional to amplifier control signal is being amplified in the signal received at VCA.

In some embodiments, amplifier 314a-314d is fixed gain, fixed current amplifier.In some enforcements 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 is variable gain, variable Current amplifier.

In some embodiments, DRx controllers 302 are measured based on the Service Quality of the input signal received in input Measure (metric) to generate amplifier control signal.In some embodiments, DRx controllers 302 are based on from communication controler The signal that 120 signals for receiving are received generating amplifier control signal, from communication controler 120 then again can be based on connecing Service quality (QoS) tolerance of the collection of letters number.The QoS metric for receiving signal can be based at least partially on reception on diversity antenna 140 The diversity signal (input signal for for example, receiving in input) for arriving.The QoS metric for receiving signal can also be based on main antenna The signal for receiving.In some embodiments, DRx controllers 302 generate amplifier control based on the QoS metric of diversity signal Signal processed, without receiving signal from communication controler 120.

In some embodiments, QoS metric includes signal intensity.Used 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 for receiving the diversity signal from diversity antenna 140 and (via biography Defeated circuit 135 and diversity RF module 320) offer process after diversity signal to transceiver 330 output.Diversity RF module 320 Via the diversity signal after 135 reception processing of transmission line and perform further process.Especially, the diversity letter after process Number separated by diversity RF multiplexer 321 or be routed to one or more paths, the signal for separating thereon or routeing is corresponding Band filter 323a-323d is filtered and is amplified by corresponding amplifier 324a-324d.Each amplifier 324a-324d's Output is provided to transceiver 330.

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

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

For example, if DRx module gains are 15dB and receiver sensitivity is -100dBm, then diversity RF module 320 Will be seen that the sensitivity of -85dBm.If closed loop AGC of diversity RF module 320 is activation, then its gain will decline automatically 15dB.However, component of signal and with it is outer retardance component all received and amplified 15dB.Therefore, the 15dB of diversity RF module 320 Gain declines the 15dB raisings that can also be accompanied by its linearity.Especially, the amplifier 324a-324d of diversity RF module 320 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 module of the control DRx of controller 120 modules 310 The gain (and/or electric current) of 320 amplifier 324a-324d.As in the examples described above, controller 120 may be in response to DRx modules The increase of the amount of gain provided by 310 amplifier 314a-314d and reduce by the amplifier 324a- of diversity RF module 320 The amount of gain that 324d is provided.Therefore, in some embodiments, controller 120 is configured to (for putting for DRx modules 310 Big device 314a-314d's) amplifier control signal is generating under (for the amplifier 324a-324d of diversity RF module 320) Trip amplifier control signal, with control via transmission line 135 be couple to (DRx modules 310) output one or more under The gain of trip amplifier 324a-324d.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 band filter 323a-323d.Therefore, in some embodiment party In formula, at least one of downstream amplifier 324a-324d is couple to (DRx modules 310) output via transmission line 135, Without passing through downstream band filter.

Fig. 4 shows that in certain embodiments diversity receiver configuration 400 can include diversity RF module 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, its with Fig. 3 in the difference of diversity RF module 320 be diversity RF module 420 in Fig. 4 than DRx module 310 include less amplifier.

As described above, in some embodiments, diversity RF module 420 does not include band filter.Therefore, in some realities Apply in mode, one or more amplifiers 424 of diversity RF module 420 need not be the (band- for special frequency band specific).Especially, diversity RF module 420 may include one or more paths, and each path includes amplifier 424, described Path is not 1 pair 1 mapping in path 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 correspond to a frequency band, but diversity RF module 420 may include not correspond to one or more paths of single frequency band.

In some embodiments (as shown in Figure 4), diversity RF module 420 includes single broadband or adjustable amplifier 424, Its signal for receiving from transmission line 135 of amplification and amplification signal is exported to multiplexer 421.Multiplexer 421 includes multiple Multiplexer is exported, and each multiplexer is exported corresponding to corresponding frequency band.In some embodiments, diversity RF module 420 is not Including any amplifier.

In some embodiments, diversity signal is single frequency tone signal.Therefore, in some embodiments, multiplexer 421 Be SPMT switch, its based on the signal received from controller 120 by diversity signal be routed in multiple outputs with 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 which 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 module 420 can be combined as individual module with transceiver 330.

In some embodiments, diversity RF module 420 includes 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 are configured to the correspondence input for routing the signals to 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 package substrate 501 and the 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 which is routed to DRx Module 510 is outer and allows system integration person, designer or maker to support the wave filter for any desired frequency band.

DRx modules 510 are included in the multiple paths between the input of DRx modules 510 and output.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 that multiple switch (for example, is arranged It is physically proximate the first switch of input and the second switch that must be physically proximate output is set).As shown in figure 5, bypass Path does not include wave filter or amplifier.

DRx modules 510 include multiple multiplexer paths, and which includes the first multiplexer 511 and the second multiplexer 512.Multiplexing Device path includes multiple module upper pathways (on-module paths), and which includes the first multiplexer 511, is implemented in package substrate Band filter 313a-313d, the amplifier 314a-314d being implemented in package substrate 501 and the second multiplexing on 501 Device 512.Multiplexer path includes one or more module outer pathways, and which includes the first multiplexer 511, is implemented in package substrate Band filter 513, amplifier 514 outside 501, and the second multiplexer 512.Amplifier 514 can be implemented in encapsulation lining Broadband 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 in the multiple paths between input and output. In some embodiments, DRx controllers 502 are configured to DRx controllers 502 (for example, from communication controler) and are received To band selected signal optionally activating one or more paths in multiple paths.DRx controllers 502 can pass through Such as open or closed by-pass switch 519, enable or forbid amplifier 314a-314d, 514, control 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, the switch between wave filter 313a-313d, 513 and 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 matcheds 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 the DRx modules 610 of Fig. 6 A, demultiplexer and band filter are embodied as duplexer 611.Duplexer 611 Including the input for being couple to antenna 140, be couple to the first amplifier 314a first output and be couple to the second amplifier 314b Second output.At the first output, duplexer 611 export input (for example it is, 140) receiving from antenna, filtering to The signal of first frequency band.At the second output, duplexer 611 exports receive in input, filtering to second frequency band Signal.In some embodiments, duplexer 611 can utilize triplexer (triplexer), four work devices (quadplexer), or any other multiplexer is replacing, any other multiplexer configuration is by the defeated of DRx modules 610 Enter the multiple signals along multiple propagateds that the input signal that place receives is separated at corresponding multiple frequency bands.

As described above, one path of each correspondence in each path in amplifier 314a-314b is arranged, and match somebody with somebody It is set to and is amplified in the signal received at amplifier.The output of amplifier 314a-314b 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 first input of the first phase-shifting elements 624a, is couple to the second phase-shifting elements 624b second input, and be couple to DRx modules 610 output output.Signal at the output of signal combiner is first Input and the signal sum of the second input.Therefore, signal combiner is configured to combine the signal 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 is carried 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, signal combiner 612 or the second amplifier 314b be 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, there it is reflect off duplexer 611.Reflected signal propagates through second Amplifier 314b and the second phase-shifting elements 624b, is input into the second 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 homophase, 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 ground homophase.Especially, the second phase-shifting elements 624b is configured to carry out phase shift to (at least in first frequency band) signal, makes Initial signal and reflected signal sum amplitude more than initial signal amplitude.

For example, the second phase-shifting elements 624b is can be configured to passing through the signal of the second phase-shifting elements 624b by by passing through The back propagation of the second amplifier 314b, it is reflect off duplexer 611, and is drawn by the forward-propagating of the second amplifier 314b - 1/2 times of the phase shift for entering carries out phase shift.Used as another example, the second phase-shifting elements 624b is can be configured to passing through second The signal of phase-shifting elements 624b by 360 degree with by by the back propagation of the second amplifier 314b, be reflect off duplexer 611, And phase shift is carried out by the half of the difference between the introduced phase shift of the forward-propagating of the second amplifier 314b.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 contrast of the signal with 360 degree of integral multiple (including zero).

As an example, initial signal can be 0 degree (or any other reference phase), by the anti-of the second amplifier 314b To propagating, be reflect off duplexer 611, and 140 degree of phase shift can be introduced by the forward-propagating of the second amplifier 314b.Cause This, in some embodiments, the second phase-shifting elements 624b be configured to pass through the signal of the second phase-shifting elements 624b by- 70 degree carry out phase shift.Therefore, initial signal is moved on to -70 degree by the second phase-shifting elements 624b phases, by by the second amplifier 314b Back propagation, be reflect off duplexer 611, mutually move on to 70 degree, and quilt with by the forward-propagating of the second amplifier 314b 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 phase shift is carried out by 110 degree.Therefore, initial signal is moved on to 110 degree by the second phase-shifting elements 624b phases, by by the second amplifier The back propagation of 314b, be reflect off duplexer 611,250 degree mutually moved on to by the forward-propagating of the second amplifier 314b, and And 360 degree are moved on to 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 puts by second Big device 314b is along the second propagated.Signal after filtering and amplification is carried out phase shift by the second phase-shifting elements 624b, and feeds To signal combiner 612 second is input into.In some embodiments, signal combiner 612 or the first amplifier 314a do 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, there it is reflect off duplexer 611.Reflected signal propagates through first and puts Big device 314a and the first phase-shifting elements 624a, is input into the first 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, cause the signal of the output of signal combiner 612 weak by the superposition that signal combiner 612 is performed Change, when initial signal and reflected signal homophase, the defeated of signal combiner 612 is caused by the superposition that signal combiner 612 is performed 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 homophase at least in part.

For example, the first phase-shifting elements 624a is can be configured to passing through the signal of the first phase-shifting elements 624a by by passing through The back propagation of the first amplifier 314a, it is reflect off duplexer 611, and is drawn by the forward-propagating of the first amplifier 314a - 1/2 times of the phase shift for entering carries out phase shift.Used as another example, the first phase-shifting elements 624a is can be configured to passing through first The signal of phase-shifting elements 624a by 360 degree with by by the back propagation of the first amplifier 314a, be reflect off duplexer 611, And phase shift is carried out by the half of the difference between the introduced phase shift of the forward-propagating of the first amplifier 314a.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 contrast 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 including one or more passive components of such as inducer and/or capacitor etc.Passive component can be with parallel connection And/or be connected in series, and can be connected between the output of amplifier 314a-314b and the input of signal combiner 612, Or can be connected between output and the ground voltage of amplifier 314a-314b.In some embodiments, phase-shifting elements 624a- 624b is integrated into and in amplifier 314a-314b identical chips (die) or is integrated in 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, module 610 is not affected by any signal attenuation 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 in duplexer 611 and amplifier In the impedance match part arranged 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.The DRx modules 641 of Fig. 6 B Substantially similar with the DRx modules 610 of Fig. 6 A, simply the amplifier 314a-314b of the DRx modules 610 of Fig. 6 A is by the DRx moulds of Fig. 6 B Dual-stage amplifier 614a-614b in block 641 replaces.

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.The DRx modules 681 of Fig. 6 C with The DRx modules 610 of Fig. 6 A are substantially similar, simply the DRx modules 681 of Fig. 6 C 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 in tunable phase shift part 724a-724d can be configured to and will pass through One amount of signal phase shift of tunable phase shift part, the amount is by the phase shift tuning signal control received from DRx controllers 702.

Diversity receiver configuration 700 includes DRx modules 710, and which 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 the multiple paths between the input of DRx modules 710 and output.In some enforcements In mode, DRx modules 710 include between input and output, by controlled by DRx controllers 702 one or more bypass One or more bypass path (not shown) of switch activator.

DRx modules 710 include multiple multiplexer paths, and which includes inputoutput multiplexer 311 and output multiplexer 312.Multiplexing Device path includes multiple module upper pathways (as shown in the figure), and which includes inputoutput multiplexer 311, band filter 313a-313d, puts Big device 314a-314d, tunable phase shift part 724a-724d, output multiplexer 312, and combiner after amplifier 615.Multiplexing Device path may include one or more module outer pathway (not shown), as mentioned 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 inducer and capacitor.It is variable Part with parallel and/or be connected in series, and can be connected to output and the output multiplexer of amplifier 314a-314d Between 312 input, or can be connected between output and the ground voltage of amplifier 314a-314d.

DRx controllers 702 are configured to optionally activate one or more in the multiple paths between input and output. In some embodiments, DRx controllers 702 are configured to DRx controllers 702 (for example, from communication controler) and are received To band selected signal optionally activating one or more paths in multiple paths.DRx controllers 702 can pass through Amplifier 314a-314d is for example enabled or forbidden, multiplexer 311,312 is controlled, or by other mechanism as above, is 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 to tunable phase shift part 724a-724d based on band selected signal. For example, DRx controllers 702 can be tuned to tunable phase shift part 724a-724d based on look-up table, and 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 DRx controllers 702 the tunable phase shift part 724a-724d of each activated path, with basis Tuner parameters are being tuned to tunable phase shift part (or its units of variance).

DRx controllers 702 can be configured to and tunable phase shift part 724a-724d is tuned so that band external reflectance signal At output multiplexer 312 and with outer initial signal homophase.For example, if band selected signal instruction is corresponding with first frequency band (by the first amplifier 314a's) first path (by the second amplifier 314b's) corresponding with second frequency band second 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) for (at second frequency band) along the signal of the second propagated, initial signal and edge First path back propagation, is reflect off band filter 313a and same by the reflected signal of first path forward-propagating Phase, and (2) for (at the 3rd frequency band) along the signal of the 3rd propagated, initial signal with reversely pass along first path Broadcast, be reflect off band filter 313a and the reflected signal homophase by 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.For example, if due to by the back propagation of the first amplifier 314a, being reflect off band filter 313a and the forward-propagating by the first amplifier 314a, the signal at second frequency band have 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 is spent (or 110 degree) and the 3rd frequency band phase shift -65 is spent (or 115 degree).

DRx controllers 702 similarly can be carried out 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 (by 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) for (at second frequency band) along the signal of the second propagated, initial signal is reflected with along first path back propagation Band filter 313a and the reflected signal homophase by first path forward-propagating are left, and (2) are for (the 4th frequency With place) along the signal of the 4th propagated, initial signal is reflect off band filter with along first path back propagation 313a and the reflected signal homophase by first path forward-propagating.

The units of variance of tunable phase shift part 724a-724d can be tuned as by DRx controllers 702 to be had for different frequency Different value with group.

In some embodiments, tunable phase shift part 724a-724d is untunable using DRx controllers 702 or controls Fixed phase drift part replacing.Each phase shift that corresponding with a frequency band corresponding path in multiple paths is arranged Each phase-shifting elements in part can be configured to and carry out phase shift to each in other frequency bands so that along corresponding other paths Initial signal with along one of path back propagation, be reflect off corresponding band filter and by the path it The reflected signal homophase of one forward-propagating.

For example, third phase moves part 724c and can be fixed and be configured to (1) and carry out phase shift to first frequency band, So that the initial signal of (propagating along first path) first frequency band is reflect off the 3rd band with along the 3rd path back propagation Bandpass filter 313c and the reflected signal homophase by the 3rd path forward-propagating, (2) carry out phase shift to second frequency band, make Obtain the initial signal of second frequency band (along the second propagated) and, with along the 3rd path back propagation, be reflect off the 3rd band logical Wave filter 313c and the reflected signal homophase by 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 reflect off the 3rd band with along the 3rd path back propagation Bandpass filter 313c and the reflected signal homophase by 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 input of DRx modules 710 with One or more in multiple paths between the output of DRx modules 710.DRx modules 710 also include multiple amplifier 314a- 314d, one path of correspondence of each amplifier in multiple amplifier 314a-314d in multiple paths are arranged and are configured It is that the signal received at amplifier is amplified.DRx modules also include multiple phase-shifting elements 724a-724d, Duo Gexiang One path of correspondence of each phase-shifting elements moved in part 724a-724d in multiple paths is arranged and configured to transmission Phase shift is carried out by the signal of phase-shifting elements.

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

In some embodiments, the first phase-shifting elements 724a is additionally configured to passing through the first phase-shifting elements 724a's 3rd frequency band (for example, the frequency band of the 3rd band filter 313c) 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 homophase at least in part propagated along first path.

Similarly, in some embodiments, the second phase-shifting elements 724b for arranging along the second path is configured to transmission Phase shift is carried out by the first frequency band of the signal of the second phase-shifting elements 724b so that along first path propagate initial signal with Along the reflected signal homophase 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 parts 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.

(as in the DRx modules 610 of Fig. 6 A), demultiplexer and bandpass filtering in the DRx modules 810 of Fig. 8 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 be couple to the second impedance match part 834b second output.At the first output, duplexer 611 is exported Input (for example, 140) receive from the antenna, signal of filtering to first frequency band.At the second output, duplexer 611 Output is received in the input, signal of filtering to second frequency band.

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

Signal combiner 612 includes being couple to first input of the first amplifier 314a, 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 by the Two amplifier 314b are along the second propagated.

Each path can be characterized by noise coefficient and gain.The noise coefficient in each path is by arranging along path Amplifier and impedance match part caused by signal to noise ratio (SNR) deterioration expression.Especially, the noise coefficient in each path Be the input of impedance match part 834a-834b 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 (which does not produce and makes an uproar Sound) the difference of noise output measure (measure).Similarly, the gain in each path is by the amplifier arranged along path With impedance match part caused by gain expression.

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 with interior gain and the out-of-band noise coefficient for second frequency band With the outer gain of band.Similarly, the second path can have for the in-band noise coefficient of second frequency band and with interior gain and Out-of-band noise coefficient for first frequency band and with outer gain.

DRx modules 810 can also be by being characterized with different noise coefficients and gain for different frequency band.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 (at each frequency band) impedance of part 834a-834b.Therefore, will be advantageous that, the resistance of impedance match part 834a-834b The anti-in-band noise coefficient for causing each path minimizes and/or causes the interior gain of band in each path and maximizes.Therefore, one In a little embodiments, each impedance match part 834a-834b be configured to (with lack 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 the signal along two propagateds is combined by signal combiner 612, amplifier is produced or amplification Out-of-band noise can have a negative impact to composite signal.For example, produced by the first amplifier 314a or the out-of-band noise meeting amplified The noise coefficient at the second frequency of increase DRx modules 810.Therefore, 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 be configured to (with lack this impedance match part 834a- The DRx modules of 834b 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 including one or more passive components of such as resistor, inducer and/or capacitor etc.Nothing Source block with parallel and/or be 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.

Will be advantageous that as described previously for particular path, the impedance of impedance match part 834a-834b causes to make an uproar with interior 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 degree (for example, the impedance at first frequency band and the impedance at second frequency band) or other various constraint (for example, component counts Amount, cost, die space) to be designed for realization, all the impedance match part 834a-834b of this four targets is probably have Challenge.Therefore, in some embodiments, make in-band noise coefficient subtract the interior tolerance of the band with interior gain to minimize, and make Out-of-band noise coefficient adds the outer tolerance 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 remain challenge.Therefore, in some embodiments, according to one group of constraint To make to minimize with interior tolerance, and constrain according to the group and make with interior tolerance 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 tolerance minimize.Therefore, impedance match part is configured to In-band noise coefficient is subtracted the interior tolerance of the band with interior gain to be reduced to interior tolerance minima (for example, according to any constraint most It is little may be with interior tolerance) a threshold quantity within.Impedance match part is additionally configured to add out-of-band noise coefficient with outer gain It is reduced to tolerance (in-band-constrained out-of-band metric) minima outside interior restraining belt with outer tolerance, For example, may be with outer tolerance according to the minimum of the additional constraint for making to be not more than a threshold quantity with interior tolerance increase.In some enforcements In mode, make (by what is weighted with intrinsic factor) with interior tolerance plus (by what is weighted with extrinsic factor) with outer tolerance 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) (in-band noise coefficient subtracts with interior to reduce the interior tolerance of band of its respective paths Gain).In some embodiments, each impedance match part 834a-834b is additionally configured to (for example, be made an uproar by reducing band outward Sonic system number, reduce with outer gain, or both come) (out-of-band noise coefficient adds with outer increasing to reduce the outer tolerance of band of its respective paths Benefit).

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

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 which 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 the multiple paths between the input of DRx modules 910 and output.In some enforcements In mode, DRx modules 910 include between input and output, by controlled by DRx controllers 902 one or more bypass One or more bypass path (not shown) of switch activator.

DRx modules 910 include multiple multiplexer paths, and which includes inputoutput multiplexer 311 and output multiplexer 312.Multiplexing Device path includes multiple module upper pathways (as shown in the figure), it include inputoutput multiplexer 311, band 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 mentioned 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, inducer and Capacitor.Units of variance with parallel and/or be connected in series, and can be connected to the output of inputoutput multiplexer 311 and put Between the input of big device 314a-314b, or can be connected between output and the ground voltage of inputoutput multiplexer 311.

DRx controllers 902 are configured to optionally activate one or more in the multiple paths between input and output. In some embodiments, DRx controllers 902 are configured to DRx controllers 902 (for example, from communication controler) and are received To band selected signal optionally activating one or more paths in multiple paths.DRx controllers 902 can pass through Amplifier 314a-314d is for example enabled or forbidden, multiplexer 311,312 is controlled, or by other mechanism as above, is 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 to adjustable impedance matching block 934a-934d based on look-up table, The frequency band indicated by band selected signal (or frequency band group) is associated by the look-up table with tuner parameters.Accordingly, in response to Impedance-tumed signal can be sent to the adjustable impedance matching block of each activated path for band selected signal, DRx controllers 902 934a-934d, is tuned to adjustable impedance matching block (or its units of variance) with according to tuner parameters.

In some embodiments, DRx controllers 902 are based at least partially on and are sent for controlling amplifier The gain of 314a-314d and/or the amplifier control signal of electric current are adjusting 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 path 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 tolerance (in-band noise coefficient subtracts with interior gain), and each The outer tolerance of band (out-of-band noise coefficient adds with outer gain) 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 makes to minimize (or reduction) with interior tolerance according to one group of constraint, and constrains according to the group With make with it is interior tolerance increase less than a threshold quantity (for example, 0.1dB, 0.2dB, 0.5dB or any other value) additional constraint To make the outer tolerance of the band of each other activated path 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 tolerance of the band with interior gain by adjustable impedance matching block Within being reduced to the threshold quantity with interior tolerance minima (for example, may be with interior tolerance according to the minimum of any constraint).DRx is controlled Device processed 902 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 tolerance of the band with outer gain to be reduced to minima (example is measured outside interior restraining belt by anti-matching block Such as, may be with outer tolerance according to the minimum of the additional constraint for making to be less than a threshold quantity with interior tolerance 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 (by what is weighted with intrinsic factor) is made according to any constraint with interior tolerance plus (by each other Activated path with extrinsic factor weighting) composite metric of the outer tolerance of band of each other activated path minimizes.

The units of variance of adjustable impedance matching block 934a-934d can be tuned as by DRx controllers 902 to be had 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 is replacing.It is corresponding with a frequency band in multiple paths in each impedance match part Each impedance match part for arranging of one path of correspondence can be configured to reductions (or minimum) for one frequency band The interior tolerance of band and reduce outside the band of (or minimize) for one or more of the other frequency band (for example, each other frequency band) Tolerance.

For example, the 3rd impedance match part 934c can be fixed and be configured to (1) and reduce for the 3rd frequency The interior tolerance of band of band, (2) reduce the outer tolerance of band for first frequency band, and (3) reduce the outer tolerance of band for second frequency band, And/or (4) reduce the outer tolerance of band for 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 input of DRx modules 910 with One or more in multiple paths between the output of DRx modules 910.DRx modules 910 also include multiple amplifier 314a- 314d, one path of correspondence of each amplifier in multiple amplifier 314a-314d in multiple paths are arranged and are configured It is that the signal received at amplifier is amplified.DRx modules 910 also include multiple impedance match part 934a-934d, One path of correspondence of each impedance match part in multiple impedance match part 934a-934d in multiple paths is arranged simultaneously And be configured to reduce the out-of-band noise coefficient in the one path in multiple paths or with least one of outer gain.

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

Similarly, in some embodiments, the second impedance match part 934b for arranging along the second path is configured to subtract It is little for the out-of-band noise coefficient of first frequency band or with least one of 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 at being arranged on input and output.DRx modules 1010 may include that one or more can Impedance match part is adjusted, is arranged at one or more in the input and output of DRx modules 1010.Especially, DRx modules 1010 may include the input adjustable impedance matching block 1016 of the input for being arranged on 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 each frequency band is matched with compact match circuit, adjustable input impedance matching part 1016 may be implemented in DRx The input of module 1010 and by DRx controllers 1002 (for example, based on the band selected signal from communication controler) control System.For example, DRx controllers 1002 can be tuned to adjustable input impedance matching part 1016 based on look-up table, the lookup The frequency band indicated by band selected signal (or frequency band group) is associated by table with tuner parameters.Select accordingly, in response to frequency band Signal is selected, input impedance tuning signal can be sent to adjustable input impedance matching part 1016 by DRx controllers 1002, with basis Tuner parameters are being tuned to adjustable input impedance matching part (or its units of variance).

Adjustable input impedance matching part 1016 can be adjustable T circuits, adjustable PI circuits or any other adjustable matching Circuit.Especially, adjustable input impedance matching part 1016 may include one or more units of variances, such as resistor, inductance Device and capacitor.Units of variance can with parallel and/or be connected in series, and can be connected to the input of DRx modules 1010 with Between the input of the first multiplexer 311, or 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 are may be implemented at the output of DRx modules 1010 and by DRx controllers 1002 (for example, based on the band selected signal from communication controler) control.For example, DRx controllers 1002 can be based on lookup Table being 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 be by output resistance 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 with parallel and/or be connected in series, and can be connected to the output of the second multiplexer 312 Between output with DRx modules 1010, or 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 which has and is couple to antenna 140 Input and be couple to the output of transmission line 135.DRx modules 1110 are included between the input of DRx modules 1110 and output 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 switch activation of 1102 controls.

DRx modules 1110 include multiple multiplexer paths, and which includes inputoutput multiplexer 311 and output multiplexer 312.Multiplexing Device path includes multiple module upper pathways (as shown in the figure), and which includes adjustable input impedance matching part 1016, inputoutput multiplexer 311st, band 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 mentioned 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 or many in the 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 for receiving is optionally activating one or more paths in multiple paths.DRx controllers 902 can be with For example, by enabling or forbidding amplifier 314a-314d, multiplexer 311,312 is controlled, or by other machines as above System, carrys out optionally activated path.In some embodiments, DRx controllers 1102 are configured to send amplifier control signal To one or more amplifiers 314a-314d for arranging along one or more activated paths respectively.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 in 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 to tunable component based on look-up table, and 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 DRx controllers 1101 (activated path) tunable component, 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 Tunable component is tuned for controlling the gain of amplifier 314a-314d and/or the amplifier control signal of electric current. In various embodiments, the fixed component that one or more tunable components can not be controlled by DRx controllers 1102 replaces.

To be understood, the tuning of a tunable component may affect 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 The tuner parameters of part 724a-724d 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 for adjustable input impedance matching part 1016 tuner parameters.

Figure 12 shows the embodiment that the flow process of the method for processing RF signals is represented.In some embodiments (and Described in detail as following as an example), method 1200 by such as Figure 11 DRx controllers 1102 etc controller performing. In some embodiments, method 1200 is performed by the process logic including hardware, firmware, software or its combination.At some In embodiment, method 1200 is by the code performed in the middle storage of non-transitory computer-readable medium (for example, memorizer) Processor is performing.In short, method 1200 includes frequency acceptance band selection signal and tunes paths to route along one or more The RF signals for being received are processing 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 choosing Selecting signal designation is used for a class frequency band of carrier aggregation communication.

At block 1220, controller optionally activates diversity receiver (DRx) module based on band selected signal One or more paths.As described above, DRx modules may include (being couple to one or more antennas) in DRx modules Or the 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 arranged along path, one or more are controlled via separator control signal and/or combiner control signal multiple With device, or by other mechanism, optionally to activate one or more in multiple paths.For example, controller can disconnect Or the switch arranged along path is connected, or the gain of the amplifier arranged along path is set to substantially zeroed.

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

Controller can be tuned to tunable component based on look-up table, 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 which is variable (variable) part) it is tuned.In some embodiments, controller is based at least partially on and is sent for control The gain of one or more amplifiers for arranging along one or more activated paths respectively and/or the amplifier control signal of electric current To be tuned to tunable component.

Figure 13 illustrates in certain embodiments, some or all diversity receivers configurations (for example, shown in Fig. 3-11 that Can be implemented in whole or in part a bit) in a module.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 is may be mounted in such package substrate 1302.For example, (which may include that front-end power management is integrated to controller 1304 Circuit (FE-PIMC)), (which may include that one or more variable gains are amplified for low noise amplification device assembly (assembly) 1306 Device), matching block 1308 (its may include one or more fix or tunable phase shift part 1331 and one or more fix or can Adjust impedance match part 1332), multiplexer elements 1310, and wave filter group 1312 (which may include that one or more band logicals are filtered Ripple device) can install and/or be implemented 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 of all parts are all depicted as being deployed in envelope On fitted lining bottom 1302, it will be understood that, can just implement other parts on some of the components.

In some embodiments, the 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, With as described herein modular form implement, or with they certain combination implement.In certain embodiments, it is this without traditional thread binding Put Deng.

Figure 14 depicts the example wireless device 1400 with one or more favorable characteristics described here.Have In the context of one or more modules of one or more features as described herein, such module can usually by void Wire frame 1401 (which can be embodied as such as front-end module), diversity RF module 1411 (which can be embodied as such as downstream module), and Diversity receiver (DRx) module 1300 (which 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 signal, transceiver from transceiver 1410 1410 can configure in known manner and operate to generate the RF signals that will amplify and launch, and process received letter Number.Transceiver 1410 is shown as interacting with baseband subsystems 1408, baseband subsystems 1408 are configured to supply and are suitable to Conversion between the data and/or voice signal and the RF signals for being suitable to transceiver 1410 of user.Transceiver 1410 can with Power management components 1406 are communicated, and power management components 1406 are configured to manage the work(for being used to operating 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 being connected to user interface 1402, in order to providing a user with and receiving from user Speech and/or data various inputs and output.Baseband subsystems 1408 may be also connected to memorizer 1404, memorizer 1404 are configured to store data and/or the instruction of the operation for being used to being easy to wireless device, and/or provide a user with depositing for information Storage.

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

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

Various honeycomb frequencies as described herein can be utilized to bring one or more features for implementing the application.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 not frequency for specifying (designation) with 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 meaning of the adversative inclusive of exhaustive, that is to say, that term " bag is explained according to the meaning of " including but not limited to " Include (comprise) ", " comprising (comprising) " etc..Term " coupling " as generally used here refers to two or more Element can be directly connected or by means of one or more intermediary element connecting.In addition, ought use in this application When, term " here ", " above ", the term of " below " and similar implication should be referred to as overall the application, rather than Any concrete part of the application.When context is allowed, 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 all items in any project, list and list in 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 and the example for the present invention of the present invention above for purposes of illustration, But as the skilled person will recognize, various equivalent modifications within the scope of the present invention are possible.For example, although Process or block are presented according to given order, but the embodiment replaced can be performed with process the step of different order, Or using the system of the block with different order, and some process or block can be deleted, moves, adds, deducts, combine And/or modification.Can realize in various ways these process or block in each.Similarly, despite when To process or block will be shown as serially performing, but on the contrary, these process or block can also be performed in parallel, or can be Different time is performed.

The teachings of the present invention for providing here 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 these enforcements are presented simply by means of example Example, and the embodiment is not intended to limit scope of the present application.In fact, can implement here according to various other forms The novel method and system of description；Furthermore, it is possible to make the pro forma 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 This form or modification in enclosing and being spiritual.

Claims

1. a kind of reception system, including：

Controller, is configured to optionally to activate multiple between the input of the reception system and the output of the reception system One or more in path；

Multiple amplifiers, one path of correspondence of each amplifier in the plurality of amplifier in the plurality of path are arranged And it is configured to be amplified the signal received at the amplifier；And

Multiple phase-shifting elements, one road of correspondence of each phase-shifting elements in the plurality of phase-shifting elements in the plurality of path Footpath is arranged and configured to the signal to passing through the phase-shifting elements and carries out phase shift, and the plurality of phase-shifting elements include first Phase-shifting elements, with first frequency band corresponding first path of first phase-shifting elements in the plurality of path are arranged, and And be configured to the second frequency band of the signal to passing through first phase-shifting elements and carry out phase shift so that along the plurality of road Second initial signal of the second propagated corresponding with the second frequency band in footpath and along the first path propagate Second reflected signal homophase at least in part.

2. reception system according to claim 1, wherein, the plurality of phase-shifting elements include the second phase-shifting elements, described second Phase-shifting elements are arranged along second path, and are configured to described of the signal to passing through second phase-shifting elements One frequency band carries out phase shift so that the first initial signal for propagating along the first path and along the of second propagated One reflected signal homophase at least in part.

3. reception system according to claim 1, wherein, first phase-shifting elements are additionally configured to passing through described first 3rd frequency band of the signal of phase-shifting elements carries out phase shift so that corresponding with the 3rd frequency band in the plurality of path The 3rd propagated the 3rd initial signal and the 3rd reflected signal homophase at least in part propagated along the first path.

4. reception system according to claim 1, wherein, first phase-shifting elements are configured to passing through first phase The second frequency band for moving the signal of part carries out phase shift so that second initial signal and second reflected signal have The phase contrast of 360 degree of integral multiple.

5. reception system according to claim 1, also including multiplexer, is configured to believe the input received in the input Number it is separated into multiple signals of the corresponding multiple frequency bands along the plurality of propagated.

6. reception system according to claim 1, also including signal combiner, is configured to combination along the plurality of propagated Signal.

7. reception system according to claim 6, also including amplifier after combiner, be arranged on the signal combiner with it is described Between output, the signal received at amplifier after amplifier is configured to be amplified in the combiner after the combiner.

8. reception system according to claim 6, wherein, each phase-shifting elements in the plurality of phase-shifting elements are arranged on described Between a signal combiner amplifier corresponding to the plurality of amplifier.

9. reception system according to claim 1, wherein, at least one of the plurality of amplifier amplifier includes that two-stage is put Big device.

10. reception system according to claim 1, wherein, at least one of the plurality of phase-shifting elements phase-shifting elements are nothings Source circuit.

11. reception systems according to claim 1, wherein, at least one of the plurality of phase-shifting elements phase-shifting elements are LC Circuit.

12. reception systems according to claim 1, wherein, at least one of the plurality of phase-shifting elements phase-shifting elements include Tunable phase shift part, is configured to will pass through one amount of signal phase shift of the tunable phase shift part, and the amount is by from the control The phase shift tuning signal control that device processed is received.

13. reception systems according to claim 12, wherein, the phase shift tuning signal is based on band selected signal.

14. reception systems according to claim 1, also including multiple impedance match parts, in the plurality of impedance match part Correspondence one path of each impedance match part in the plurality of path arrange, and be configured to reduce the plurality of road The out-of-band noise coefficient in one path of the correspondence in footpath or with least one of outer gain.

A kind of 15. radio frequency modules, including：

Package substrate, is configured to accommodate multiple parts；And

Reception system, is implemented in the package substrate, and the reception system includes：Controller, is configured to optionally activate One or more in multiple paths between the input of the reception system and the output of the reception system；Multiple amplifications Device, one path of correspondence of each amplifier in the plurality of amplifier in the plurality of path are arranged, and are configured to Signal to receiving at the amplifier is amplified；And multiple phase-shifting elements, it is every in the plurality of phase-shifting elements One path of correspondence of the individual phase-shifting elements in the plurality of path is arranged, and is configured to passing through the phase-shifting elements Signal carry out phase shift, the plurality of phase-shifting elements include the first phase-shifting elements, and first phase-shifting elements are along the plurality of road First path corresponding with first frequency band in footpath is arranged, and is configured to the letter to passing through first phase-shifting elements Number second frequency band carry out phase shift so that corresponding with the second frequency band the second path in the plurality of path passes The second initial signal for broadcasting and the second reflected signal for propagating along first path homophase at least in part.

16. RF modules according to claim 15, wherein, the RF modules are diversity receiver front-end module FEM.

17. RF modules according to claim 15, wherein, the plurality of phase-shifting elements include the second phase-shifting elements, described second Phase-shifting elements are arranged along second path, and are configured to described of the signal to passing through second phase-shifting elements One frequency band carries out phase shift so that the first initial signal for propagating along the first path and along the of second propagated One reflected signal homophase at least in part.

A kind of 18. wireless devices, including：

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

First front-end module FEM, is communicated with the first antenna, and a FEM includes the envelope for being configured to accommodate multiple parts Fitted lining bottom, a FEM also include the reception system being implemented in the package substrate, and the reception system includes：Control Device, is configured to optionally activate in the multiple paths between the input of the reception system and the output of the reception system One or more；Multiple amplifiers, correspondence one of each amplifier in the plurality of amplifier in the plurality of path Individual path is arranged, and is configured to be amplified the signal received at the amplifier；And multiple phase-shifting elements, institute State one path of correspondence of each phase-shifting elements in multiple phase-shifting elements in the plurality of path to arrange, and be configured to it is right The signal for passing through the phase-shifting elements carries out phase shift, in the plurality of phase-shifting elements in the plurality of path with The first phase-shifting elements that the corresponding first path of one frequency band is arranged are configured to the letter to passing through first phase-shifting elements Number second frequency band carry out phase shift so that corresponding with the second frequency band the second path in the plurality of path passes The second initial signal for broadcasting and the second reflected signal for propagating along first path homophase at least in part；And

Transceiver, is configured to receive the process version of a RF signals via transmission line from the output, and is based on The process version of the first RF signals is generating data bit.

19. wireless devices according to claim 18, also including be configured to receive the second radio frequency rf signal the second antenna and With the second front-end module FEM of second antenna communication, the transceiver arrangement is to receive institute from the output of the 2nd FEM State the process version of the 2nd RF signals, and based on the 2nd RF signals process version generating data bit.

20. wireless devices according to claim 18, wherein, the plurality of phase-shifting elements include the second phase-shifting elements, described Two phase-shifting elements are arranged along second path, and are configured to described in the signal to passing through second phase-shifting elements First frequency band carries out phase shift so that along the first initial signal of first path propagation and along second propagated First reflected signal homophase at least in part.