Dual subscriber identification module dual active (DSDA) radio frequency module supporting simultaneous reception of multiple subbands.

Abstract

Aspects of this disclosure provide techniques for supporting the simultaneous transmission and reception of signals on different subbands of the frequency band for dual subscriber identification module (dual SIM) dual active (DSDA) operation. These techniques may involve using a multi-pole switch capable of simultaneously coupling transmit and receive paths associated with different subscriptions to one or more antenna ports, so that the transmission of signals associated with one subscription may occur simultaneously with the reception of signals associated with another subscription (and the reception of signals associated with one subscription).

Description

[Technical Field]

[0001]

[0001] Certain aspects of the present disclosure relate, in general, to electronic circuits, and more particularly to techniques and apparatus for supporting the simultaneous transmission and reception of signals on different subbands for dual-subscriber-identity-module (dual-SIM) dual-active (DSDA) operation. [Background technology]

[0002]

[0002] Wireless communication devices are widely deployed to provide a variety of communication services such as telephone, video, data, messaging, and broadcast. Such wireless communication devices may transmit and / or receive radio frequency (RF) signals via any of a variety of suitable radio access technologies (RATs), including, but not limited to, 5G New Radio (NR), Long Term Evolution (LTE), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wideband CDMA (WCDMA), Global System for Mobility (GSM), Bluetooth, Bluetooth Low Energy (BLE), ZigBee, wireless local area network (WLAN) RAT (e.g., WiFi), and similar.

[0003]

[0003] A wireless communication network may include several base stations that can support communication between several mobile stations. A mobile station (MS) may communicate with a base station (BS) via downlink and uplink. Downlink (or forward link) refers to the communication link from the base station to the mobile station, and uplink (or reverse link) refers to the communication link from the mobile station to the base station. A base station may transmit data and control information to a mobile station on the downlink and / or receive data and control information from a mobile station on the uplink. Base stations and / or mobile stations may include transceivers that can be used for pre-transmit signal processing (e.g., filtering, upconversion, and amplification) by one or more antennas, and for post-receive signal processing (e.g., amplification, downconversion, and filtering) by one or more antennas. [Overview of the Initiative]

[0004]

[0004] Certain aspects of the present disclosure provide a circuit for wireless communication. The circuit includes a first duplexer configured to support a first transmit subband and a first receive subband of a frequency band, and including a first port, a second port, and a third port. The circuit also includes a second duplexer configured to support a second transmit subband and a second receive subband of a frequency band, and including a first port, a second port, and a third port. The circuit also includes at least one first amplifier including at least one output coupled to the first port of the first duplexer and the first port of the second duplexer. The circuit also includes at least one second amplifier including at least one input coupled to the second port of the first duplexer and the second port of the second duplexer. The circuit also includes a first multipole switch having a first terminal, a second terminal, a third terminal, and a fourth terminal. In some cases, the first terminal of the first multipole switch is coupled to the third port of a first duplexer. In some cases, the second terminal of the first multipole switch is coupled to the third port of a second duplexer. In some cases, based on a control signal, the third terminal is selectively coupled to the first terminal and the fourth terminal is selectively coupled to the second terminal.

[0005]

[0005] Certain aspects of the present disclosure provide a transceiver module (also referred to as a “radio frequency (RF) module”) comprising circuitry for wireless communication, as described herein.

[0006]

[0006] Certain aspects of the present disclosure provide a method for wireless communication. The method includes controlling a first multipole switch such that the ports of a first duplexer are coupled to an antenna port and the ports of a second duplexer are coupled to an antenna port. In some cases, the first duplexer is configured to support a first transmit subband and a first receive subband of a frequency band. In some cases, the second duplexer is configured to support a second transmit subband and a second receive subband of a frequency band. The method also includes amplifying a transmit signal through a first amplifier to produce an amplified transmit signal. The method also includes filtering the amplified transmit signal using the first duplexer to produce a filtered transmit signal in the first transmit subband for routing from the ports of the first duplexer through the first multipole switch to the antenna port for transmission. In some cases, a first multipole switch is controlled such that the received signal may be routed from the antenna port through the first multipole switch to a port of a first duplexer, and filtered by the first duplexer to generate a first received signal in a first receiving subband. In some cases, the first received signal in the first receiving subband may be routed from another port of the first duplexer to at least one second amplifier, simultaneously with the transmission of a filtered transmit signal in a first transmit subband. In some cases, a first multipole switch is controlled such that the received signal may be routed from the antenna port through the first multipole switch to a port of a second duplexer, and filtered by a second duplexer to generate a second received signal in a second receiving subband. In some cases, the second received signal in the second receiving subband may be routed from another port of the second duplexer to at least one second amplifier, simultaneously with the transmission of a filtered transmit signal in a first transmit subband.

[0007]

[0007] Other embodiments provide an apparatus that is operable, configured or adapted to perform one or more of the methods described above and / or other methods described elsewhere in this Specification; a non-temporary computer-readable medium comprising, when executed by one or more processors of the apparatus, instructions causing the apparatus to perform the methods described above and other methods described elsewhere in this Specification; a computer program product embodied on a computer-readable storage medium comprising code for performing the methods described above and other methods described elsewhere in this Specification; and / or an apparatus comprising means for performing the methods described above and other methods described elsewhere in this Specification. For example, the apparatus may include a processing system, a device having a processing system, or processing systems cooperating over one or more networks. [Brief explanation of the drawing]

[0008]

[0008] To gain a more detailed understanding of the features of the present disclosure, a more specific description may be obtained by referring to the embodiments partially shown in the accompanying drawings. However, it should be noted that the accompanying drawings only illustrate certain typical embodiments of the present disclosure, and therefore the description should not be considered to limit the scope of the present disclosure, as other similarly effective embodiments may be envisioned. [Figure 1]

[0009] This is a diagram of an exemplary wireless communication network in which aspects of this disclosure may be put into practice. [Figure 2]

[0010] This is a block diagram conceptually illustrating the design of exemplary base stations (BS) and user equipment (UE) in which aspects of this disclosure may be put into practice. [Figure 3]

[0011] This is a block diagram of an exemplary radio frequency (RF) transceiver in which aspects of this disclosure may be put into practice. [Figure 4]

[0012] Figure 4A is a block diagram of an exemplary transmit circuit for full transmit (TX) simultaneity for dual SIM dual-active (DSDA) operation between subscriptions.

[0013] Figure 4B is a block diagram of an exemplary transmit circuit for DSDA transmit sharing between subscriptions. [Figure 5]

[0014] This is a simplified block diagram of an exemplary transceiver having an RF module to support DSDA operation. [Figure 6A]

[0015] This is an exemplary simplified block diagram of a transceiver having an RF module circuit for DSDA operation, which can be used for simultaneous transmission and reception of signals associated with different subscriptions on a shared frequency band. [Figure 6B]

[0016] This is an exemplary simplified transceiver block diagram having a separate RF module circuit for DSDA operation, which can be used for simultaneous transmission and reception of signals associated with different subscriptions on a shared frequency band. [Figure 7]

[0017] This is an illustrative flowchart of the operation for wireless communication. [Figure 8]

[0018] This is a block diagram of an exemplary transceiver having an RF module for DSDA operation, which can be used to perform transmit sharing between subscriptions. [Figure 9]

[0019] This shows an exemplary periodic RF resource allocation pattern that can be used for transmit sharing between subscriptions for DSDA operation.

[0009]

[0020] For ease of understanding, the same reference numerals are used to designate identical elements common to the figures, where possible. It is intended that elements disclosed in one embodiment may be usefully utilized in other embodiments without specific description. [Modes for carrying out the invention]

[0010]

[0021] Certain aspects of this disclosure relate to techniques and apparatus for supporting the simultaneous transmission and reception of signals on different subbands of frequency bands for dual subscriber identification module (dual SIM) dual active (DSDA) operation.

[0011]

[0022] For example, a user equipment (UE) may be able to communicate using multiple subscriptions using a technique known as DSDA. When using DSDA, the UE may transmit a signal for a first subscription on a frequency band while simultaneously receiving another signal for a second subscription on the same frequency band. However, the design of certain radio frequency (RF) modules to support DSDA operation may not support DSDA operation for certain frequency bands, such as the n28 frequency band associated with fifth-generation (5G) nu-radio (NR) technology. For example, due to the design of these RF modules, the UE may only be able to simultaneously transmit and receive signals on a frequency band for one subscription, and may not be able to simultaneously receive signals for a second subscription on the same frequency band.

[0012]

[0023] Accordingly, aspects of the present disclosure provide techniques and apparatus for supporting simultaneous transmission and reception of signals on different subbands for different subscriptions of a UE. In other words, transmission on one subband concurrently with reception on two other subbands (e.g., associated with two different subscriptions) is supported. In some cases, these techniques may involve using a multi-pole switch (e.g., a double-pole, double-throw (DPDT) switch) capable of simultaneously coupling transmit paths and receive paths associated with different subscriptions to one or more antenna ports, such that transmission of a signal associated with one subscription may occur concurrently with reception of a signal associated with another subscription (and reception of a signal associated with one subscription).

[0013]

[0024] In the following, various aspects of the present disclosure will be described more fully with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of the present disclosure is intended to cover every aspect of the disclosure disclosed herein, regardless of whether it is implemented independently of any other aspect of the disclosure or combined with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the present disclosure is intended to encompass such an apparatus or method practiced using other structures, functions, or structures and functions in addition to or other than the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the appended claims.

[0014]

[0025] The term "exemplary" is used herein to mean "serving as an example, instance, or illustration". Any aspect described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects.

[0015]

[0026] As used herein, the term "connected to" in various tenses of the verb "connect" may mean that element A is directly connected to element B, or that other elements may be connected between element A and element B (i.e., element A is indirectly connected to element B). In the case of electrical components, the term "connected to" may also be used herein to mean electrically connecting element A and element B (and any components electrically connected therebetween) using a wire, trace, or other electrically conductive material.

[0016]

[0027] Exemplary wireless communication network Figure 1 illustrates an exemplary wireless communication network 100 in which aspects of the present disclosure may be practiced. For example, the wireless communication network 100 may be a New Radio (NR) system (e.g., a 5th Generation (5G) NR network), an Evolved Universal Terrestrial Radio Access (E-UTRA) system (e.g., a 4th Generation (4G) network), a Universal Mobile Telecommunications System (UMTS) (e.g., a 2nd Generation / 3rd Generation (2G / 3G) network), or a Code Division Multiple Access (CDMA) system (e.g., a 2G / 3G network), or may be configured for communication according to IEEE standards, such as one or more of the 802.11 standards.

[0017]

[0028] As shown in Figure 1, the wireless communication network 100 may include several base stations (BSs) 110a to 110z (each also referred to individually as "BS110" or collectively as "BS110" in this specification) and other network entities. BS may also be referred to as access points (APs), evolved Node B (eNodeB or eNB), next generation Node B (gNodeB or gNB), or any other terminology.

[0018]

[0029] A BS110 may provide communication coverage to a specific geographic area, sometimes referred to as a “cell,” which may be fixed or move according to the location of the mobile BS. In some examples, BS110s may interconnect with each other through various types of backhaul interfaces (e.g., direct physical connection, wireless connection, virtual network, etc.) using any suitable transport network, and / or interconnect with one or more other BS or network nodes (not shown) within the wireless communication network 100. In the example shown in Figure 1, BS110a, BS110b, and BS110c may be macro BSs of macrocells 102a, 102b, and 102c, respectively. BS110x may be a pico BS of picocell 102x. BS110y and BS110z may be femto BSs of femtocells 102y and 102z, respectively. A BS may support one or more cells.

[0019]

[0030] BS110 communicates with one or more user devices (UEs) 120a–120y (each also referred to individually as “UE120” or collectively as “UE120” in this specification) within a wireless communication network 100. UEs may be stationary or mobile and may also be referred to as user terminals (UTs), mobile stations (MSs), access terminals, stations (STAs), clients, wireless devices, mobile devices, or any other terminology. User terminals may be wireless devices such as cellular phones, smartphones, personal digital assistants (PDAs), handheld devices, wearable devices, wireless modems, laptop computers, tablets, and personal computers.

[0020]

[0031] BS110 is considered a transmitting entity on the downlink and a receiving entity on the uplink. UE120 is considered a transmitting entity on the uplink and a receiving entity on the downlink. As used herein, “transmitting entity” is an independently operating device or apparatus capable of transmitting data over a frequency channel, and “receiving entity” is an independently operating device or apparatus capable of receiving data over a frequency channel. In the following description, the subscript “dn” indicates downlink and the subscript “up” indicates uplink. N for simultaneous transmission on uplink up Individual UEs may be selected, and N simultaneous transmissions on the downlink may occur. dn N UEs may be selected. up is N dn It may be equal to, or not equal to, N up and N dn This can be a static value or may change with each scheduling interval. In BS110 and / or UE120, beam steering or some other spatial processing technique may be used.

[0021]

[0032] UEs 120 (e.g., 120x, 120y, etc.) may be distributed throughout the wireless communication network 100, and each UE 120 may be fixed or movable. The wireless communication network 100 may include relay stations (e.g., relay station 110r), which are also referred to as relays or the like, that receive transmissions of data and / or other information from an upstream station (e.g., BS 110a or UE 120r) and send transmissions of data and / or other information to a downstream station (e.g., UE 120 or BS 110), or relay transmissions between UEs 120 to facilitate communication between devices.

[0022]

[0033] BS 110 may communicate with one or more UEs 120 at any given moment on the downlink and uplink. The downlink (i.e., forward link) is the communication link from the BS 110 to the UEs 120, and the uplink (i.e., reverse link) is the communication link from the UEs 120 to the BS 110. UEs 120 may also communicate peer-to-peer with another UE 120.

[0023]

[0034] The wireless communication network 100 may use multiple transmit antennas and multiple receive antennas for data transmission on the downlink and uplink. BS 110 may achieve transmit diversity for downlink transmissions and / or receive diversity for uplink transmissions by using N ap antennas. u The set of UEs 120 may receive downlink transmissions and transmit uplink transmissions. Each UE 120 may transmit user-specific data to the BS 110 and / or receive user-specific data from the BS 110. In general, each UE 120 may be equipped with one or multiple antennas. N u UEs 120 may have the same or different numbers of antennas.

[0024]

[0035] The wireless communication network 100 may be a time division duplex (TDD) system or a frequency division duplex (FDD) system. In a TDD system, the downlink and uplink share the same frequency band. In an FDD system, the downlink and uplink use multiple different frequency bands. The wireless communication network 100 may also utilize a single carrier or multiple carriers for transmission. Each UE 120 may be equipped with a single antenna (for example, to reduce costs) or multiple antennas (for example, if additional costs may be supported).

[0025]

[0036] The network controller 130 (sometimes called the "system controller") communicates with a set of BS110s and can provide coordination and control to these BS110s (e.g., via backhaul). In certain cases (e.g., in a 5G NR system), the network controller 130 may include a centralized unit (CU) and / or a distributed unit (DU). In certain embodiments, the network controller 130 may communicate with a core network 132 (e.g., a 5G Core Network (5GC)) which provides various network functions such as access and mobility management, session management, user plane functions, policy control functions, authentication server functions, integrated data management, application functions, network exposure functions, network repository functions, and network slice selection functions.

[0026]

[0037] In certain embodiments of this disclosure, BS110 and / or UE120 may include transceiver circuitry configured to support simultaneous reception and transmission of signals over multiple subbands of a frequency band for dual-SIM dual-active (DSDA) operation, as described in more detail herein. In some embodiments, the transceiver circuitry may be embodied in an RF module.

[0027]

[0038] Figure 2 shows exemplary components of BS110a and UE120a (for example, from the wireless communication network 100 in Figure 1) in which embodiments of the present disclosure may be implemented.

[0028]

[0039] On the downlink, in BS110a, the transmitting processor 220 may receive data from data source 212, control information from controller / processor 240, and / or other data (e.g., from scheduler 244). Various types of data may be transmitted over different transport channels. For example, control information may be specified for the physical broadcast channel (PBCH), physical control format indicator channel (PCFICH), physical hybrid automatic repeat request (HARQ) indicator channel (PHICH), physical downlink control channel (PDCCH), group common PDCCH (GC PDCCH), etc. Data may be specified for the physical downlink shared channel (PDSCH), etc. A medium access control (MAC) control element (MAC-CE) is a MAC layer communication structure that can be used for exchanging control commands between wireless nodes. MAC-CE can be transported within a shared channel, such as a PDSCH, a physical uplink shared channel (PUSCH), or a physical sidelink shared channel (PSSCH).

[0029]

[0040] The processor 220 can process data and control information (e.g., encoding and symbol mapping) to obtain data symbols and control symbols, respectively. The transmitting processor 220 can also generate reference symbols for the primary synchronization signal (PSS), secondary synchronization signal (SSS), PBCH demodulation reference signal (DMRS), and channel state information reference signal (CSI-RS), etc.

[0030]

[0041] A transmit (TX) multiple-input, multiple-output (MIMO) processor 230 may, where applicable, perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, and / or reference symbols, and provide output symbol streams to modulators (MODs) in transceivers 232a-232t. Each modulator in transceivers 232a-232t may process its respective output symbol stream (e.g., for orthogonal frequency division multiplexing, OFDM) to obtain an output sample stream. Each of transceivers 232a-232t may further process its output sample stream (e.g., convert to analog, amplify, filter, and upconvert) to obtain a downlink signal. The downlink signals from transceivers 232a-232t may be transmitted via antennas 234a-234t, respectively.

[0031]

[0042] In UE120a, antennas 252a to 252r can each receive downlink signals from BS110a and provide the received signals to transceivers 254a to 254r. Transceivers 254a to 254r can adjust their respective received signals (e.g., filtering, amplification, downconversion, and digitization) to obtain input samples. Each demodulator (DEMOD) in transceivers 232a to 232t can further process the input samples (e.g., for OFDM) to obtain received symbols. MIMO detector 256 can obtain received symbols from all demodulators in transceivers 254a to 254r, perform MIMO detection on the received symbols where applicable, and provide the detected symbols. The receiving processor 258 may process the detected symbols (e.g., demodulate, deinterleave, and decode), provide the decoded data for UE120a to the data sink 260, and provide the decoded control information to the controller / processor 280.

[0032]

[0043] On the uplink, in UE120a, the transmit processor 264 may receive and process data from data source 262 (e.g., physical uplink shared channel (PUSCH)) and control information from controller / processor 280 (e.g., physical uplink control channel (PUCCH)). The transmit processor 264 may also generate reference symbols for reference signals (e.g., sounding reference signal (SRS)). Symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266 where applicable, and further processed by modulators (MODs) in transceivers 254a-254r (e.g., for single-carrier frequency division multiplexing, SC-FDM) and transmitted to BS110a. In BS110a, the uplink signal from UE120a is received by antenna 234, processed by demodulators in transceivers 232a-232t, detected by MIMO detector 236 where applicable, and further processed and decoded by receiving processor 238 to obtain the data and control information sent by UE120a. The receiving processor 238 can provide the decoded data to data sink 239 and the decoded control information to controller / processor 240.

[0033]

[0044] Memories 242 and 282 can store data and program code for BS110a and UE120a, respectively. Memories 242 and 282 can also interface with controllers / processors 240 and 280, respectively. Scheduler 244 can schedule UEs for data transmission on the downlink and / or uplink.

[0034]

[0045] Antenna 252, processors 258, 264, 266, and / or controller / processor 280 of UE120a, and / or antenna 234, processors 220, 230, 238, and / or controller / processor 240 of BS110a may be used to perform the various techniques and methods described herein.

[0035]

[0046] In certain aspects of this disclosure, transceivers 232 and / or transceivers 254 may include transceiver circuits configured to support simultaneous reception and transmission of signals over multiple subbands of the frequency band for DSDA operation, as described in more detail herein.

[0036]

[0047] NR can utilize orthogonal frequency division multiplexing (OFDM) with cyclic prefixes (CP) on the uplink and downlink. NR can support half-duplex operation using time division duplexing (TDD). OFDM and single-carrier frequency division multiplexing (SC-FDM) divide the system bandwidth into multiple orthogonal subcarriers, commonly referred to as tones or bins. Each subcarrier can be modulated along with the data. Modulation symbols can be transmitted using OFDM in the frequency domain and using SC-FDM in the time domain. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers can depend on the system bandwidth. The system bandwidth can also be divided into subbands. For example, a subband can cover multiple resource blocks (RBs).

[0037] Example RF transceiver

[0048] Figure 3 is a block diagram of an exemplary radio frequency (RF) transceiver circuit 300 according to a particular aspect of the present disclosure. The RF transceiver circuit 300 includes at least one transmit (TX) path 302 (also known as the “transmit chain”) for transmitting signals over one or more antennas 306, and at least one receive (RX) path 304 (also known as the “receive chain”) for receiving signals over the antennas 306. When the TX path 302 and the RX path 304 share the antennas 306, these paths may be connected to the antennas via an interface 308 which may include any of a variety of suitable RF devices, such as switches, duplexers, diplexers, and multiplexers.

[0038]

[0049] The TX path 302, which receives in-phase (I) and / or quadrature (Q) baseband analog signals from the digital-to-analog converter (DAC) 310, may include a baseband filter (BBF) 312, a mixer 314, a driver amplifier (DA) 316, and a power amplifier (PA) 318. The BBF 312, mixer 314, DA 316, and PA 318 may be contained within a radio frequency integrated circuit (RFIC). In certain embodiments, the PA 318 may be outside the RFIC (e.g., within an RF module).

[0039]

[0050] The BBF312 filters the baseband signal received from the DAC310, and the mixer 314 mixes the filtered baseband signal with the local oscillator (LO) signal to convert the target baseband signal to a different frequency (e.g., upconvert from baseband to radio frequency). This frequency conversion process generates a sum frequency and a difference frequency between the LO frequency and the frequency of the target baseband signal. The sum frequency and difference frequency are referred to as the "beat frequency". The beat frequency is typically within the RF range, so that the signal output by the mixer 314 is typically an RF signal that can be amplified by the DA316 and / or PA318 before transmission by the antenna(s)306. Although only one mixer 314 is shown, several mixers may be used to upconvert the filtered baseband signal to one or more intermediate frequencies, and then upconvert the intermediate frequency (IF) signal to a frequency for transmission.

[0040]

[0051] The RX path 304 may include a low-noise amplifier (LNA) 324, a mixer 326, and a baseband filter (BBF) 328. The LNA 324, mixer 326, and BBF 328 may be contained within one or more RFICs, which may or may not be the same RFIC containing the TX path components. RF signals received via antenna(s) 306 may be amplified by the LNA 324, and the mixer 326 mixes the amplified RF signals with the received local oscillator (LO) signals to convert the target RF signals to different baseband frequencies (e.g., down-convert). The baseband signals output by the mixer 326 may be filtered by the BBF 328 before being converted to digital I and / or Q signals by an analog-to-digital converter (ADC) 330 for digital signal processing.

[0041]

[0052] A particular transceiver may employ a frequency synthesizer having a variable frequency oscillator (e.g., a voltage-controlled oscillator (VCO) or a digitally controlled oscillator (DCO)) to generate a stable, tuneable LO with a specific tuning range. Thus, the transmit LO may be generated by the TX frequency synthesizer 320, which may be buffered or amplified by the amplifier 322 before being mixed with the baseband signal in the mixer 314. Similarly, the receive LO may be generated by the RX frequency synthesizer 332, which may be buffered or amplified by the amplifier 334 before being mixed with the RF signal in the mixer 326. In certain embodiments, a single frequency synthesizer may be used for both the TX path 302 and the RX path 304. In certain embodiments, the TX frequency synthesizer 320 and / or the RX frequency synthesizer 332 may include frequency multipliers, such as frequency doublers, driven by an oscillator (e.g., a VCO) within the frequency synthesizer.

[0042]

[0053] The controller 336 (for example, the controller / processor 280 in Figure 2) can instruct the operation of the RF transceiver circuit 300A, such as transmitting a signal via the TX path 302 and / or receiving a signal via the RX path 304. The controller 336 may be a processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof. The memory 338 (for example, the memory 282 in Figure 2) may store data and / or program code for operating the RF transceiver circuit 300. The controller 336 and / or the memory 338 may include control logic (for example, complementary metal-oxide-semiconductor (CMOS) logic).

[0043]

[0054] In certain embodiments, one or more PA318s, one or more LNA324s, and interface 308s may be enclosed within an RF module. The RF module (and its internal transceiver circuitry) may be configured to support simultaneous reception and transmission of signals on multiple subbands of the frequency band for dual-SIM dual-active (DSDA) operation.

[0044] Aspects related to simultaneous reception of multiple subbands in a DSDA RF module

[0055] In some cases, a user device (UE) may be able to communicate using multiple subscriptions using a technique known as DSDA. When using DSDA, the UE's first subscription (e.g., referred to herein as "Sub1") and second subscription (e.g., referred to herein as "Sub2") may use the same frequency band for wireless communication. In some cases, Sub1 may be associated with the UE's first subscriber identity module (SIM) card or embedded SIM, and Sub2 may be associated with the UE's second SIM card or embedded SIM. For example, when using DSDA, the UE may transmit a signal for Sub1 on a frequency band and, at the same time, receive another signal for Sub2 on the same frequency band.

[0045]

[0056] Different radio frequency (RF) module designs for the UE may be used to support DSDA in the UE. Figure 4A shows a transmitter circuit that supports DSDA operation for complete transmit (TX) simultaneity between subscriptions. For example, separate TX paths may be used for different subscriptions of the UE, as shown. For example, as shown, Sub1 may be associated with a first TX path 402 and a first antenna (labeled "Antenna 0"), while Sub2 may be associated with a second TX path 404 and a second antenna (labeled "Antenna 1"). These separate TX paths may allow the UE to simultaneously transmit from one independently tuneable transmitter per subscription and receive from at least one independently tuneable receiver per subscription.

[0046]

[0057] Figure 4B shows a transmit circuit that supports DSDA TX sharing between subscriptions. As shown, one TX path can be shared among different subscriptions of the UE. For example, as shown, Sub1 and Sub2 may share TX path 406 and an antenna (e.g., antenna 0). Sharing of TX path 406 can be managed by the UE's media access control (MAC) schedule, which can operate switch 408 (e.g., a single-pole, double-throw (SPDT) switch) to selectively couple the transmit path for Sub1 or Sub2 to TX path 406. When using DSDA TX sharing, the UE may transmit from one independently tuneable transmitter per subscription in a time-division multiplexer and receive simultaneously from at least one independently tuneable receiver per subscription.

[0047]

[0058] As described above, in some cases DSDA can be used to support simultaneous transmission and reception associated with different subscriptions on a specific frequency band, such as n28. In some cases the frequency band may include the n28 band designated for fifth-generation (5G) New Radio (NR) (e.g., the 700 megahertz (MHz) band), which may include multiple subbands, such as the n28A subband and the n28B subband. In some cases the n28A subband may be associated with a receive subband (e.g., for receiving downlink signals) and a transmit subband (e.g., for transmitting uplink signals), each having a bandwidth of 30 MHz. In some cases the n28A transmit subband may have a frequency range of 703–733 MHz, while the n28A receive subband may have a frequency range of 758–788 MHz. Similarly, the n28B subband may be associated with a receiving subband (for example, for receiving downlink signals) and a transmitting subband (for example, for transmitting uplink signals), each having a bandwidth of 30 MHz. In some cases, the n28B transmitting subband may have a frequency range of 718–748 MHz, while the n28A receiving subband may have a frequency range of 773–803 MHz. In some cases, Sub1 may be used to transmit and receive signals on subband n28A, and Sub2 may be used to transmit and receive signals on subband n28B, or vice versa.

[0048]

[0059] Figure 5 shows a simplified transceiver 500, including a transceiver module 501 of the UE that may be used to support DSDA operation for the n28A and n28B subbands. The transceiver module 501, also referred to as the "RF module," may be implemented, for example, as an LNA and PA module including duplexers (LPAMID). In some cases, the transceiver module 501 may implement one or more PAs 318, one or more LNAs 324, and interface 308 of the RF transceiver circuit 300 in Figure 3.

[0049]

[0060] As shown in Figure 5, the transceiver module 501 may be coupled to a transceiver section 502 that includes signal outputs for the n28A subband (e.g., n28A_TX) and the n28B subband (e.g., n28B_TX). In some cases, the n28A_TX signal output may correspond to the UE's first subscription (e.g., Sub1), while the n28B_TX signal output may correspond to the UE's second subscription (e.g., Sub2). In some cases, the transceiver section 502 may implement the rest of the transmit path(s) 302 and receive path(s) 304 of the RF transceiver circuit 300 in Figure 3.

[0050]

[0061] A multiplexer 504 may be used to selectively couple the n28A_TX or n28B_TX signal output to a power amplifier (PA) 506. The multiplexer 504 may be implemented by a single-pole multi-throw switch, such as the single-pole double-throw (SPDT) switch shown in the illustration. When transmitting on the n28A subband, the n28A_TX signal is output on the n28A_TX signal output of the transceiver section 502 and can be selectively coupled to the PA 506 using the multiplexer 504. Similarly, when transmitting on the n28B subband, the n28B_TX signal is output on the n28A_TX signal output of the transceiver section 502 and can be selectively coupled to the PA 506 using the multiplexer 504.

[0051]

[0062] The output of PA506 can then be fed into a demultiplexer 508 configured to selectively couple the output of PA506 to either a first TX path 510 or a second TX path 512. Similar to the multiplexer 504, the demultiplexer 508 can be implemented by a single-pole multi-throw switch, such as the illustrated SPDT switch. As shown in the example in Figure 5, the first TX path 510 may correspond to the n28A_TX signal, while the second TX path 512 may correspond to the n28B_TX signal. In other examples, depending on the frequency subbands supported by the duplexers 514, 516, the first TX path 510 may correspond to the n28B_TX signal, while the second TX path 512 may correspond to the n28A_TX signal.

[0052]

[0063] Subsequently, as shown in the figure, the selected n28A_TX signal or n28B_TX signal may be supplied to the respective duplexer. For example, as shown in the figure, the n28A_TX signal may be supplied to the first duplexer 514 in the first TX path 510. Alternatively, the n28B_TX signal may be supplied to the second duplexer 516. The first duplexer 514 and the second duplexer 516 may be configured to enable bidirectional communication through their respective bidirectional communication paths. For example, when transmitting on the n28A subband, the first duplexer 514 may be configured to output the n28A_TX signal to the first bidirectional communication path 518. Similarly, when transmitting on the n28B subband, the second duplexer 516 may be configured to output the n28B_TX signal to the second bidirectional communication path 520. Subsequently, the multiplexer 522 may be used to selectively couple the first bidirectional communication path 518 or the second bidirectional communication path 520 to the antenna 524 (for example, via the antenna port 523 of the transceiver module 501) for the transmission of the n28A_TX signal or the n28B_TX signal, respectively. The multiplexer 522 may be implemented by a single-pole multi-throw switch, such as the illustrated SPDT switch.

[0053]

[0064] In some cases, signals on both the n28A and n28 subbands may be present on antenna 524, but the signals on the n28A or n28B subband may be received by the transceiver section 502 simultaneously with the transmission on the n28A or n28B subband, respectively. For example, when transmitting an n28A_TX signal, the n28A_RX signal may be received simultaneously by the transceiver section 502. Similarly, when transmitting an n28B_TX signal, the n28B_RX signal may be received simultaneously by the transceiver 502. More specifically, when transmitting an n28A_TX signal (and receiving an n28A_RX signal), the first bidirectional communication path 518 may be selectively coupled to antenna 524 by the multiplexer 522, allowing the n28A_RX signal to propagate along the first received signal path 526 and eventually reach the n28A_RX signal input of the transceiver section 502. For example, as shown in the figure, the n28A_RX signal may first propagate along the first bidirectional communication path 518 before being received by the first duplexer 514. The first duplexer 514 may then output the n28A_RX signal to the first RX path 528. The n28A_RX signal may then be input to the first low-noise amplifier (LNA) 530 and amplified. The amplified n28A_RX signal may then be input to a bipolar double-throw (DPDT) switch 532 configured to selectively couple the amplified n28A_RX signal to the n28A_RX signal input of the transceiver section 502.

[0054]

[0065] Similarly, when transmitting the n28B_TX signal (and receiving the n28B_RX signal), the second bidirectional communication path 520 may be selectively coupled to the antenna 524 by the multiplexer 522, allowing the n28B_RX signal to propagate along the second receiving signal path 534 and eventually reach the n28B_RX signal input of the transceiver section 502. For example, as shown in the figure, the n28B_RX signal may first propagate along the second bidirectional communication path 520 before being received by the second duplexer 516. The second duplexer 516 may then output the n28B_RX signal to the second RX path 536. The n28B_RX signal may then be input to the second LNA 538 and amplified. Subsequently, the amplified n28B_RX signal can be input to a DPDT switch 532 configured to selectively couple the amplified n28B_RX signal to the n28B_RX signal input of the transceiver section 502.

[0055]

[0066] While the transceiver module 501 may enable simultaneous transmission and reception associated with one subscription on a specific subband, such as n28A or n28B, it may not be possible for the transceiver module 501 to simultaneously enable transmission on one subband associated with a first subscription (and reception on another subband) and reception on a second subband associated with a second subscription, due to the single connection via the multiplexer 522. For example, when transmitting the n28A_TX signal associated with Sub1, the multiplexer 522 may be configured to couple the first bidirectional communication path 518 to antenna 524, enabling reception of the n28A_RX signal, but substantially disconnecting the second bidirectional communication path 520 that would be provided to the second duplexer 516 when the n28B_RX signal associated with Sub2 is received. Similarly, when transmitting the n28B_TX signal associated with Sub2, the multiplexer 522 may be configured to couple the second bidirectional communication path 520 to antenna 524, enabling reception of the n28B_RX signal, but effectively disconnecting the first bidirectional communication path 518, which would receive the n28A_RX signal associated with Sub1 and provide it to the first duplexer 514. Since it may not be possible for the transceiver module 501 to simultaneously enable transmission on one subband (and reception on another subband) associated with the first subscription, as well as reception on a second subband associated with the second subscription, DSDA communication (e.g., call quality and / or data throughput) may be significantly negatively affected.

[0056]

[0067] Accordingly, aspects of this disclosure provide techniques for improving DSDA communication associated with different subscriptions of a UE. In some cases, for example, these techniques may provide an RF module having a multipole switch (e.g., a DPDT switch) coupled to an antenna port configured to allow simultaneous transmission and reception of signals associated with different subscriptions over a shared frequency band, such as an n28. By allowing simultaneous transmission according to one of the subscriptions, along with simultaneous reception of signals associated with different subscriptions (over a shared frequency band), DSDA communication can be improved (e.g., call quality and / or data throughput can be increased).

[0057]

[0068] Figure 6A shows a simplified transceiver 600 having a transceiver module 601 for DSDA operation, which can be used for simultaneous transmission and reception of signals associated with different subscriptions over a shared frequency band. For example, the transceiver module 601 may be configured to support DSDA operation using simultaneous n28A transmission, n28A reception, and n28B reception, or using simultaneous n28B transmission, n28B reception, and n28A reception.

[0058]

[0069] The transceiver module 601, also referred to as the "RF module," may be implemented as an LPAMID and coupled to the transceiver section 602. In some cases, the transceiver section 602 may implement the remaining parts of the transmit path(s) 302 and receive path(s) 304 of the RF transceiver circuit 300 in Figure 3. The transceiver section 602 may be similar to the transceiver section 502 in Figure 5. Therefore, the transceiver section 602 in Figure 6A may include signal outputs for the n28A subband (e.g., n28A_TX) and the n28B subband (e.g., n28B_TX), such as the n28A_TX signal output 647 and the n28B_TX signal output 649. In some cases, the n28A_TX signal output 647 may correspond to the UE's first subscription (e.g., Sub1), while the n28B_TX signal output 649 may correspond to the UE's second subscription (e.g., Sub2). The n28A_TX signal output 647 for the n28A subband may be configured to output the n28A_TX signal for transmission. Similarly, the n28B_TX signal output 649 for the n28B subband may be configured to output the n28B_TX signal for transmission.

[0059]

[0070] As shown in the figure, a multiplexer 604 may be used to selectively couple the n28A_TX signal output 647 or the n28B_TX signal output 649 to PA606. The multiplexer 604 may be implemented by a single-pole multi-throw switch, such as the single-pole double-throw (SPDT) switch shown in the figure. For example, when transmitting on the n28A subband, the n28A_TX signal is output on the n28A_TX signal output 647 of the transceiver section 602 and can be selectively coupled to PA606 using the multiplexer 604. Similarly, when transmitting on the n28B subband, the n28B_TX signal is output on the n28B_TX signal output 649 of the transceiver 602 and can be selectively coupled to PA606 using the multiplexer 604.

[0060]

[0071] Output 623 of PA606 can then be supplied to demultiplexer 608. Similar to demultiplexer 508, demultiplexer 608 can be implemented by a single-pole multi-throw switch, such as the illustrated SPDT switch. As illustrated, demultiplexer 608 includes a first input terminal configured to receive the n28A_TX signal and / or the n28B_TX signal from the output terminal of PA606. Demultiplexer 608 can be configured to selectively couple output 623 of PA606 to a first TX path 610 via the first output terminal of demultiplexer 608, or to a second TX path 612 via the second output terminal of demultiplexer 608. As shown in the example in Figure 6A, the first TX path 610 may correspond to the n28A_TX signal, while the second TX path 612 may correspond to the n28B_TX signal. In other examples, depending on the frequency subbands supported by duplexers 614 and 616, the first TX path 610 may correspond to the n28B_TX signal, while the second TX path 612 may correspond to the n28A_TX signal.

[0061]

[0072] Subsequently, as shown in the figure, the selected n28A_TX signal or n28B_TX signal may be supplied to the respective duplexer. For example, as shown in the figure, the n28A_TX signal may be supplied to the first duplexer 614 in the first TX path 610. Alternatively, the n28B_TX signal may be supplied to the second duplexer 616. As shown in the figure, the first duplexer 614 includes a first port 603, a second port 605, and a third port 607. The first port 603 of the first duplexer 614 may be coupled to the output 623 of the PA 606 (e.g., via the first TX path 610). The second port 605 of the first duplexer 614 may be coupled to the first LNA 630 associated with the first RX path 626. Similarly, the second duplexer 616 includes a first port 609, a second port 611, and a third port 613. The first port 609 of the second duplexer 616 may be coupled to the output of PA 606 (for example, via the second TX route 612). The second port 611 of the second duplexer 616 may be coupled to the second LNA 632 associated with the second RX route 628.

[0062]

[0073] The first duplexer 614 and the second duplexer 616 may be configured to enable bidirectional communication through their respective bidirectional communication paths. For example, when transmitting on the n28A subband, the first duplexer 614 may be configured to use the third port 607 to output the n28A_TX signal to the first bidirectional communication path 618 for transmission through one or more antennas, such as antenna 624 and / or antenna 625. As will be described in more detail below, the first duplexer 614 may also be configured to receive the n28A_RX signal from one or more antennas, such as antenna 624 and / or antenna 625, through the third port 607 and the first bidirectional communication path 618. Therefore, the first duplexer 614 is configured to receive the n28A_TX signal via the first port 603 and to output the n28A_TX signal via the third port 607, which may include filtering the n28A_TX signal (according to the n28A transmit subband) to generate a filtered n28A_TX signal for routing from the third port 607 through a multipole switch 622 (e.g., a DPDT switch) for transmission to an antenna port associated with antenna 624 or antenna 625.

[0063]

[0074] Similarly, when transmitting on the n28B subband, the second duplexer 616 may be configured to use the third port 613 to output the n28B_TX signal to the second bidirectional communication path 620 for transmission via antennas 624 and / or 625. As will be described in more detail below, the second duplexer 616 may also be configured to receive the n28B_RX signal from antennas 624 and / or 625 via the third port 613 and the second bidirectional communication path 620. Therefore, because the second duplexer is configured to receive the n28B_TX signal via the first port 609, outputting the n28B_TX signal via the third port 613 may involve filtering the n28B_TX signal (according to the n28B transmit subband) to generate a filtered n28B_TX signal for routing from the third port 613 through the multipole switch 622 for transmission to the antenna port associated with antenna 624 or antenna 625.

[0064]

[0075] As described above with respect to Figure 5, due to the use of the multiplexer 522, the transceiver module 501 cannot receive the n28B_RX signal when transmitting the n28A_TX signal. Similarly, the transceiver module 501 cannot receive the n28A_RX signal when transmitting the n28B_TX signal. Therefore, to circumvent this limitation, the transceiver module 601 may include a multipole switch 622. In some cases, as shown in the figure, the multipole switch may be implemented as a DPDT switch. As shown in the figure, the multipole switch 622 includes a first terminal 615, a second terminal 617, a third terminal 619, and a fourth terminal 621. The first terminal 615 of the multipole switch 622 may be coupled to the third port 607 of the first duplexer 614 via a first bidirectional communication path 618. Similarly, the second terminal 617 of the multi-pole switch 622 may be connected to the third port 613 of the second duplexer 616 via the second bidirectional communication path 620.

[0065]

[0076] As shown in the figure, the third terminal 619 of the multi-pole switch 622 may be coupled to the first antenna port 663 corresponding to antenna 624. In addition, the fourth terminal 621 of the multi-pole switch 622 may be coupled to the second antenna port 665 corresponding to antenna 625. In some cases, the third terminal 619 and the fourth terminal 621 of the multi-pole switch 622 may be coupled to each other, as well as to antenna ports such as the first antenna port 663 and / or the second antenna port 665.

[0066]

[0077] In some cases, based on a switch control signal, the multipole switch 622 may be configured to selectively couple a third terminal 619 to a first terminal 615. As a result of selectively coupling the third terminal 619 to the first terminal 615, a first TX route 610 associated with the n28A transmit subband may be coupled to one or more antennas (e.g., antenna 624 and / or antenna 625) via a first bidirectional communication route 618 for the transmission of the n28A_TX signal. In addition, based on the same switch control signal, the multipole switch 622 may be configured to selectively couple a fourth terminal 621 to a second terminal 617. As a result of selectively coupling the fourth terminal 621 to the second terminal 617, a second TX route 612 associated with the n28B transmit subband may be coupled to one or more antennas (e.g., antenna 624 and / or antenna 625) via a second bidirectional communication route 620 for the transmission of the n28B_TX signal.

[0067]

[0078] Similarly, as a result of selectively coupling the third terminal 619 to the first terminal 615, the first RX path 626 associated with the n28A receiving subband may be coupled to one or more antennas (e.g., antenna 624 and / or antenna 625) via the first bidirectional communication path 618 for receiving the n28A_RX signal. Likewise, as a result of selectively coupling the fourth terminal 621 to the second terminal 617, the second RX path 628 associated with the n28B receiving subband may be coupled to one or more antennas (e.g., antenna 624 and / or antenna 625) via the second bidirectional communication path 620 for receiving the n28B_RX signal.

[0068]

[0079] In contrast to a multiplexer (or SPxT switch), the multipole switch 622 may allow simultaneous transmission of signals associated with one of the subscriptions on the n28A or n28B transmit subband, as well as simultaneous reception of signals associated with different subscriptions (e.g., Sub1 and Sub2) on the n28A and n28B receive subbands. For example, unlike the multiplexer 522 of the transceiver module 501 shown in Figure 5, when transmitting the n28A_TX signal, the multipole switch 622 may be configured to substantially couple one or more of the antennas (e.g., antenna 624 and / or antenna 625) to a second RX path 628 associated with the n28B receive subband, enabling the transceiver module 601 to receive the n28B_RX signal simultaneously with the transmission of the n28A_TX signal (and simultaneously with the n28A_RX signal). Similarly, when transmitting the n28B_TX signal, the multipole switch 622 may be configured to substantially couple one or more of the antennas (e.g., antenna 624 and / or antenna 625) to a first RX path 626 associated with the n28B receiving subband, enabling the transceiver module 601 to receive the n28A_RX signal simultaneously with the transmission of the n28B_TX signal (and simultaneously with the n28B_RX signal).

[0069]

[0080] Therefore, for example, when transmitting the n28A_TX signal, the transceiver module 601 may also simultaneously receive the n28B_RX signal (and the n28A_RX signal). Since the multipole switch 622 may be capable of substantially coupling the second RX path 628 to one or more antennas while transmitting the n28A_TX signal, the n28B_RX signal may be received by one or more of the antennas and provided to the second duplexer 616 via the second bidirectional communication path 620 for filtering and routing to the second RX path 628. Similarly, when transmitting the n28B_TX signal, the transceiver module 601 may also simultaneously receive the n28A_RX signal (and the n28B_RX signal). Since the multi-pole switch 622 may be capable of substantially coupling the first RX path 626 to one or more antennas while transmitting the n28B_TX signal, the n28A_RX signal may be received by one or more of the antennas and provided to the first duplexer 614 via the first bidirectional communication path 618 for filtering and routing to the first RX path 626.

[0070]

[0081] Subsequently, the first duplexer 614 may be configured to output the n28A_RX signal to the first RX path 626 via the second port 605. In some cases, outputting the n28A_RX signal via the second port 605 may involve filtering the n28A_RX signal to generate a filtered n28A_RX signal for routing from the second port 605 through the first LNA 630 and DPDT switch 634 to the n28A_RX signal input 643 of the transceiver section 602 for signal processing. Similarly, the second duplexer 616 may be configured to output the n28B_RX signal onto the second RX path 628. In some cases, outputting the n28B_RX signal via the second port 611 may involve filtering the n28B_RX signal to generate a filtered n28B_RX signal for routing from the second port 611 through the second LNA 632 and DPDT switch 634 to the n28B_RX signal input 645 of the transceiver section 602 for signal processing.

[0071]

[0082] For example, as shown in the figure, after being received on the third port 607, the first duplexer 614 may be configured to output the filtered n28A_RX signal on the second port 605, providing the n28A_RX signal to the first LNA 630 in the first RX path 626 associated with the n28A receiving subband. For example, the n28A_RX signal may be output by the first duplexer 614 on the second port 605 coupled to input 627 of the first LNA 630. Similarly, after being received on the third port 613, the second duplexer 616 may be configured to output the filtered n28B_RX signal on the second port 611, providing the n28B_RX signal to the second LNA 632 in the second RX path 628 associated with the n28B receiving subband. For example, the n28B_RX signal may be output by the second duplexer 616 onto the second port 611, which is coupled to the input 629 of the second LNA 632.

[0072]

[0083] As shown in the figure, the transceiver module 601 further includes another multi-pole switch, such as a DPDT switch 634. In some cases, the DPDT switch 634 may be used to support n28A 2Rx + n28B 2Rx DSDA. As shown in the figure, the first input 631 of the DPDT switch 634 is coupled to the output 633 of the first LNA 630 and is configured to receive the amplified n28A_RX signal from the first LNA 630. Furthermore, as shown in the figure, the second input 635 of the DPDT switch 634 is coupled to the output 637 of the second LNA 632 and is configured to receive the amplified n28B_RX signal from the second LNA 632.

[0073]

[0084] In addition, as shown in the figure, the DPDT switch 634 includes a first output 639 and a second output 641. As shown in the figure, the first output 639 may be coupled to the n28A_RX signal input 643 of the transceiver section 602, and the second output 641 may be coupled to the n28B_RX signal input 645 of the transceiver section 602. The DPDT switch 634 may be configured to couple the output 633 of the first LNA 630 to the n28A_RX signal input 643 of the transceiver 602 by selectively coupling the first input 631 of the DPDT switch 634 to the first output 639 of the DPDT switch 634. Similarly, the DPDT switch 634 may be configured to connect the output 637 of the second LNA 632 to the n28A_RX signal input 645 of the transceiver 602 by selectively connecting the second input 635 of the DPDT switch 634 to the second output 641 of the DPDT switch 634.

[0074]

[0085] As described above, the transceiver module 601 shown in Figure 6A may support n28A 2Rx + n28B 2Rx DSDA. Figure 6B shows another embodiment for supporting n28A 1Rx + n28 1Rx DSDA. For example, Figure 6B again shows the transceiver module 601. However, instead of including multiple LNAs and DPDT switches 634 as in Figure 6A, the transceiver module 601 shown in Figure 6B may instead include a single LNA 638 and a multiplexer 636. The multiplexer 636 may be implemented by a multi-throw switch, such as an SPDT switch as shown. As shown in Figure 6B, the multiplexer 636 includes a first input 651 coupled to a second port 605 of a first duplexer 614 via a first RX path 626. As shown in the figure, the multiplexer 636 includes a second input 653 coupled to the second port 611 of the second duplexer 616 via a second RX path 628. The first input 651 of the multiplexer 636 may be configured to receive the n28A_RX signal from the first duplexer 614. Similarly, the second input 653 of the multiplexer 636 may be configured to receive the n28B_RX signal from the second duplexer 616.

[0075]

[0086] In addition, as shown in the figure, the multiplexer 636 includes an output 655 coupled to the input 657 of the LNA 638. The multiplexer 636 may be configured to selectively couple either a first RX path 626 or a second RX path 628 to the input 657 of the LNA 638. For example, in some cases, the multiplexer 636 may selectively couple the first RX path 626 to the input 657 of the LNA 638 to provide the n28A_RX signal to the LNA 638 for amplification. The amplified n28A_RX signal can then be provided to the RX signal input 659 of the transceiver section 602 via the output 661 of the LNA 638. In other cases, the multiplexer 636 may selectively couple the second RX path 628 to the input 657 of the LNA 638 to provide the n28B_RX signal to the LNA 638 for amplification. Subsequently, the amplified n28B_RX signal can be provided to the RX signal input 659 of the transceiver section 602 via the output 661 of the LNA638.

[0076] Exemplary operation to support simultaneous transmission and reception on different subbands for DSDA operation.

[0087] Figure 7 is a flowchart of an exemplary operation 700 for wireless communication according to a particular aspect of the present disclosure. In some cases, operation 700 may be performed by a device such as a UE (e.g., UE120) or one or more components within a UE (e.g., transceiver 600) to support simultaneous transmission and reception of signals on different subbands for DSDA operation. In some cases, the different subbands may include the n28A subband and the n28B subband.

[0077]

[0088] Operation 700 begins in block 702 by controlling a first multipole switch (e.g., multipole switch 622 in Figure 6A) so that a port of a first duplexer (e.g., the third port 607 of the first duplexer 614) is coupled to an antenna port (e.g., the first antenna port 663 and / or the second antenna port 665), and a port of a second duplexer (e.g., the third port 613 of the second duplexer 616) is coupled to an antenna port (e.g., the first antenna port 663 and / or the second antenna port 665). In some cases, the first duplexer (e.g., the first duplexer 614) is configured to support a first transmit subband (e.g., n28A_TX) and a first receive subband (e.g., n28A_RX) of a frequency band (e.g., n28). In addition, in some cases, a second duplexer (e.g., second duplexer 616) is configured to support a second transmit subband (e.g., n28B_TX) and a second receive subband (e.g., n28B_RX) of the frequency band (e.g., n28).

[0078]

[0089] In block 704, operation 700 includes amplifying the transmit signal through a first amplifier (e.g., PA606) to generate an amplified transmit signal (e.g., the n28A_TX signal or n28B_TX signal output from output 623 of PA606).

[0079]

[0090] In block 706, operation 700 includes filtering an amplified transmit signal using the first duplexer to generate a filtered transmit signal in a first transmit subband (e.g., n28A) for routing from a port (e.g., third port 607) of the first duplexer (e.g., first duplexer 614) through a first multipole switch to an antenna port (e.g., first antenna port 663 or second antenna port 665) for transmission.

[0080]

[0091] In some cases, the first multipole switch may be controlled such that a received signal (e.g., the n28A_RX signal) is routed from the antenna port through the first multipole switch to a port of the first duplexer, and may be filtered by the first duplexer to generate a first received signal (e.g., the filtered n28A_RX signal) in a first receiving subband (e.g., n28A). Furthermore, in some cases, the first received signal in the first receiving subband may be routed from another port of the first duplexer (e.g., the first duplexer 614) (e.g., the second port 605) to at least one second amplifier (e.g., the first LNA 630) at the same time as the transmission of a filtered transmitted signal (e.g., the filtered n28A_TX signal) in a first transmitting subband.

[0081]

[0092] In addition, in some cases, the received signal (e.g., the n28B_RX signal) may be routed from the antenna port through the first multipole switch to the port of the second duplexer, and filtered by the second duplexer to generate a second received signal (e.g., the filtered n28B_RX signal) in the second receiving subband (e.g., n28B). In some cases, the second received signal in the second receiving subband may be routed from another port of the second duplexer (e.g., the second duplexer 616) (e.g., the second port 611) to at least one second amplifier (e.g., the second LNA 632) at the same time as the transmission of the filtered transmitted signal (e.g., the filtered n28B_TX signal) in the first transmitting subband.

[0082]

[0093] In some cases, the first multi-pole switch includes a DPDT switch.

[0083]

[0094] In some cases, at least one second amplifier includes a first LNA (e.g., first LNA630) and a second LNA (e.g., second LNA632).

[0084]

[0095] In some cases, operation 700 may further include amplifying the first received signal using a first LNA (e.g., first LNA 630) to generate an amplified first received signal. In addition, in some cases, operation 700 may further include amplifying the second received signal using a second LNA (e.g., second LNA 632) to generate an amplified second received signal.

[0085]

[0096] In some cases, operation 700 further includes controlling a second multipole switch (e.g., a DPDT switch 634) to selectively route the amplified first received signal to a first receiving path for signal processing and to selectively route the amplified second received signal to a second receiving path for signal processing.

[0086]

[0097] In some cases, at least one second amplifier includes an LNA (e.g., LNA 638 in Figure 6B). In some cases, operation 700 may further include controlling a multi-throw switch or multiplexer (e.g., multiplexer 636 in Figure 6B) to selectively route a first or second received signal to an LNA for amplification. In some cases, the multi-throw switch includes an SPDT switch.

[0087]

[0098] In some cases, the frequency band includes the n28 frequency band associated with fifth-generation (5G) New Radio (NR) communication technology.

[0088]

[0099] In some cases, the transmission of a filtered transmit signal (e.g., filtered n28A_TX signal) in a first transmit subband (e.g., n28A) or a filtered transmit signal (e.g., filtered n28B_TX signal) in a second transmit subband (e.g., n28B), simultaneously with the reception of a first receive signal (e.g., n28A_RX signal) in a first receive subband (e.g., n28A) and a second receive signal (e.g., n28B_RX signal) in a second receive band (e.g., n28B), supports DSDA operation using simultaneous n28A transmission, n28A reception, and n28B reception, or using simultaneous n28B transmission, n28B reception, and n28A reception.

[0089] Aspects related to DSDA transmission sharing

[0100] The techniques presented above provide an RF module for improving DSDA call quality by allowing simultaneous transmission and reception of signals associated with different subscriptions on a shared frequency band. However, the RF module cannot allow simultaneous transmission of signals associated with different subscriptions (e.g., Sub1 and Sub2) to avoid interference. Therefore, to avoid interference, transmission associated with only one subscription may be performed by the RF module at any given time. For example, to avoid interference, transmission of only the n28A_TX signal associated with Sub1 or the n28B_TX signal associated with Sub2 may be performed at a given time. Thus, the RF module can perform transmission sharing between different subscriptions on the n28A and n28B subbands.

[0090]

[0101] Figure 8 shows another embodiment of the transceiver 500 for DSDA operation, which includes a transceiver module 501 that can be used to perform TX sharing between subscriptions, such as Sub1 associated with the n28A subband and Sub1 associated with n28B.

[0091]

[0102] As shown in the embodiment of Figure 8, the transceiver 500 also includes a multipole switch 840 (e.g., a DPDT switch) which can be used for diversity reception when receiving n28A_RX and n28B_RX signals. For example, as shown, the first terminal of the multipole switch 840 may be coupled to a multiplexer 522 and configured to (1) receive an n28A_TX signal or an n28B_TX signal from the multiplexer 522 for transmission via antenna 824, and (2) provide the n28A_RX signal or n28B_RX signal received from antenna 824 on a primary receive (PRX) signal path 846 to the multiplexer 522. The n28A_RX signal or n28B_RX signal received from antenna 824 and provided to the multiplexer 522 on the PRX signal path 846 may be known as the PRX signal. Therefore, in the following, the n28A_RX signal provided to the multiplexer 522 will be referred to as the n28A_PRX signal, and the n28B_RX signal provided to the multiplexer 522 will be referred to as the n28B_PRX signal.

[0092]

[0103] In addition, as shown in the figure, the multi-pole switch 840 includes a second terminal which can be coupled to the diversity receiver (DRX) 842. The second terminal of the multi-pole switch 840 may be configured to receive the n28A_RX signal and / or the n28B_RX signal from the antenna 844 and to separately provide the n28A_RX signal and / or the n28B_RX signal to the DRX 842 on the DRX signal path 848. Thus, hereafter, the n28A_RX signal provided to the DRX 842 on the DRX signal path 848 will be referred to as the n28A_DRX signal, and the n28B_RX signal provided to the DRX 842 will be referred to as the n28B_DRX signal.

[0093]

[0104] For example, when receiving on the n28A subband (which may be done simultaneously with transmission on the n28A subband), the n28A_RX signal may be received by both antenna 824 and antenna 844. The multipole switch 840 may then separately provide the n28A_RX signal to both the multiplexer 522 (e.g., the n28A_PRX signal) via the PRX signal path 846 and to the DRX 842 (e.g., the n28A_DRX signal) via the DRX signal path 848. The DRX 842 may then be configured to provide the n28A_DRX signal to the DRX signal input of the transceiver section 502.

[0094]

[0105] Similarly, when receiving on the n28B subband (for example, this may be done simultaneously with transmission on the n28B subband), the n28B_RX signal may be received by both antenna 824 and antenna 844. The multipole switch 840 may then provide the n28B_RX signal separately to both the multiplexer 522 (e.g., the n28B_PRX signal) via a first terminal and to the DRX 842 (e.g., the n28B_DRX signal) via a second terminal. The DRX 842 may be configured to provide the n28B_DRX signal to the DRX signal input of the transceiver section 502.

[0095]

[0106] When received on the n28A subband, the n28A_PRX signal may be provided to the first duplexer 514 by the multiplexer 522 via the first bidirectional communication path 518 for filtering and routing to the first RX path 528. The first duplexer 514 may then output the n28A_PRX signal on the first RX path 528. The n28A_PRX signal may then be input to the first LNA 530 and amplified. The amplified n28A_PRX signal may then be input to the DPDT switch 532, which is configured to selectively couple the amplified n28A_PRX signal to the n28A_PRX signal input of the transceiver section 502.

[0096]

[0107] Similarly, when received on the n28B subband, the n28B_PRX signal may be provided to a second duplexer 516 by a multiplexer 522 via a second bidirectional communication path 520. The second duplexer 516 may output the n28B_PRX signal on a second RX path 536. The n28B_PRX signal may then be input to a second LNA 538 and amplified. The amplified n28B_PRX signal may then be input to a DPDT switch 532 configured to selectively couple the amplified n28B_PRX signal to the n28B_PRX signal input of the transceiver section 502.

[0097]

[0108] As described above, the transceiver 500 shown in Figure 8 may be configured to perform TX sharing between the n28A and n28B subbands to avoid interference when using DSDA. In other words, when using DSDA, the RF module may be configured to transmit on only one subband (e.g., n28A or n28B) at a given time to avoid interference. In some cases, the transceiver 500 shown in Figure 8 may be configured to perform TX sharing between the n28A and n28B subbands based on an RF resource allocation pattern. In some cases, the RF resource allocation pattern may allocate RF resources for different subbands (e.g., n28A and n28B) based on the priority associated with different subscriptions associated with these subbands.

[0098]

[0109] Figure 9 shows an exemplary periodic RF resource allocation pattern 900 that may be used for TX sharing between subscriptions (e.g., Sub1 and Sub2) for DSDA operation. As shown, the RF resource allocation pattern may include multiple RF resources on which transmission on a particular subband can be performed by the transceiver 500 shown in Figure 8. As shown, the RF resources in the periodic RF resource allocation pattern 900 may be allocated based on the priority of different subscriptions (e.g., Sub1 and Sub2). For example, as shown, the periodic RF resource allocation pattern 900 includes three RF resources 902 for transmission of high-priority subscriptions, followed by one RF resource 904 for transmission of low-priority subscriptions. As shown, the periodic RF resource allocation pattern 900 can be repeated every 40ms, and therefore each RF resource within a 40ms period may be 10ms long.

[0099]

[0110] In some cases, when using TX sharing between subscriptions (e.g., Sub1 and Sub2) to transmit on the n28A and n28B subbands, the n28A and n28B subbands may be allocated RF resources in the periodic RF resource allocation pattern 900 based on the priority of the different subscriptions. In some cases, Sub1 may be associated with the n28A subband, and Sub2 may be associated with the n28B subband. Therefore, for example, when Sub1 has a higher priority and Sub2 has a lower priority, a transmission on the n28A subband associated with Sub1, including the n28A_TX signal, may be allocated RF resource 902 in the periodic RF resource allocation pattern 900, and a transmission on the n28B subband associated with Sub2, including the n28B_TX signal, may be allocated RF resource 904 in the periodic RF resource allocation pattern 900. Similarly, when Sub2 has a high priority and Sub1 has a low priority, a transmission on the n28B subband associated with Sub2, including the n28B_TX signal, may be allocated RF resource 902 in the periodic RF resource allocation pattern 900, and a transmission on the n28A subband associated with Sub1, including the n28A_TX signal, may be allocated RF resource 904 in the periodic RF resource allocation pattern 900.

[0100]

[0111] In some cases, when the n28A subband is allocated RF resource 902 (for example, Sub1 associated with the n28A_TX signal has high priority), the transceiver 500 shown in Figure 8 may be configured to transmit the n28A_TX signal within RF resource 902 according to the techniques described above. In addition, reception on the n28A subband associated with Sub1 may be allocated the PRX signal path 846 in Figure 8 within RF resource 902. For example, within RF resource 902, the n28A_RX signal associated with Sub1 may be received by antenna 824 and output onto the PRX signal path 846 by multipole switch 840 before being received at the n28A_PRX signal input of transceiver portion 502 according to the techniques described above. However, to ensure that transmissions on the n28A subband associated with Sub1 do not affect the reception of the n28B_RX signal on the n28B subband associated with Sub2 during RF resource 902, the n28B subband may be allocated the DRX signal path 848 in Figure 8. For example, during RF resource 902 in which high-priority transmissions associated with Sub1 on the n28A subband are being performed, the n28B_RX signal associated with Sub2 may be received by antenna 844 and output onto the DRX signal path 848 by multipole switch 840 before being received at the n28B_DRX signal input of transceiver section 502 according to the technique described above.

[0101]

[0112] In addition, when the n28B subband is allocated RF resource 904 (for example, Sub2 associated with the n28B_TX signal has low priority), the transceiver 500 shown in Figure 8 may be configured to transmit the n28B_TX signal associated with Sub2 within RF resource 904 according to the techniques described above. In addition, within RF resource 904, the n28B subband may be allocated PRX signal path 846 to receive the n28B_RX signal associated with Sub2, and the n28A subband may be allocated DRX signal path 848 to receive the n28A_RX signal associated with Sub1.

[0102]

[0113] Similarly, when the n28B subband is allocated RF resource 902 (for example, Sub2 associated with the n28B_TX signal has high priority), the transceiver 500 shown in Figure 8 may be configured to transmit the n28B_TX signal associated with Sub2 within RF resource 902 according to the techniques described above. In addition, reception on the n28B subband may be allocated the PRX signal path 846 in Figure 8 within RF resource 902. For example, within RF resource 902, the n28B_RX signal associated with Sub2 may be received by antenna 824 and output onto the PRX signal path 846 by multipole switch 840 before being received at the n28B_PRX signal input of transceiver portion 502 according to the techniques described above. However, during RF resource 902, to ensure that transmission on the n28B subband does not affect the reception of the n28A_RX signal associated with Sub1 on the n28A subband, the n28A subband may be allocated the DRX signal path 848 shown in Figure 8. For example, during RF resource 902, when high-priority transmission associated with Sub2 on the n28B subband is being performed, the n28A_RX signal associated with Sub1 may be received by antenna 844 and output onto the DRX signal path 848 by multipole switch 840 before being received at the n28A_DRX signal input of transceiver section 502 according to the technique described above.

[0103]

[0114] In addition, when the n28A subband is allocated RF resource 904 (for example, Sub1 associated with the n28A_TX signal has low priority), the transceiver 500 shown in Figure 8 may be configured to transmit the n28A_TX signal associated with Sub1 within RF resource 904 according to the techniques described above. In addition, within RF resource 904, the n28A subband may be allocated PRX signal path 846 to receive the n28A_RX signal associated with Sub1, and the n28B subband may be allocated DRX signal path 848 to receive the n28B_RX signal associated with Sub2.

[0104] Exemplary aspects

[0115] In addition to the various embodiments described above, certain combinations of embodiments are within the scope of this disclosure, some of which are detailed below.

[0105]

[0116] Clause 1: A circuit for wireless communication comprising: a first duplexer configured to support a first transmit subband and a first receive subband of a frequency band, the first duplexer including a first port, a second port, and a third port; a second duplexer configured to support a second transmit subband and a second receive subband of a frequency band, the second duplexer including a first port, a second port, and a third port; and at least one output coupled to the first port of the first duplexer and the first port of the second duplexer. A circuit comprising one first amplifier, at least one second amplifier including at least one input coupled to the second port of the first duplexer and the second port of the second duplexer, and a first multipole switch including a first terminal, a second terminal, a third terminal, and a fourth terminal, wherein the first terminal of the first multipole switch is coupled to the third port of the first duplexer, the second terminal of the first multipole switch is coupled to the third port of the second duplexer, and based on a control signal, the third terminal is selectively coupled to the first terminal and the fourth terminal is selectively coupled to the second terminal.

[0106]

[0117] Clause 2: The circuit described in Clause 1, wherein the first multipole switch includes a double-pole double-throw (DPDT) switch.

[0107]

[0118] Clause 3: The circuit according to either Clause 1 or 2, wherein at least one second amplifier includes a first low-noise amplifier (LNA) and a second LNA, the second port of the first duplexer being coupled to the input of the first LNA and the second port of the second duplexer being coupled to the input of the second LNA.

[0108]

[0119] Clause 4: The circuit according to Clause 3, further comprising a second multi-pole switch having a first input coupled to the output of a first LNA and a second input coupled to the output of a second LNA.

[0109]

[0120] Clause 5: The circuit according to any one of Clauses 1 to 4, further comprising a multi-throw switch or multiplexer, wherein at least one second amplifier includes a low-noise amplifier (LNA), and the multi-throw switch or multiplexer includes a first input coupled to a second port of a first duplexer, a second input coupled to a second port of a second duplexer, and an output coupled to the input of the LNA.

[0110]

[0121] Clause 6: The circuit described in Clause 5, wherein the multi-throw switch includes a single-pole double-throw (SPDT) switch.

[0111]

[0122] Clause 7: The circuit according to any one of Clauses 1 to 4, further comprising a demultiplexer or multi-throw switch, wherein at least one first amplifier includes a power amplifier (PA), and the demultiplexer or multi-throw switch includes an input coupled to the output of the PA, a first output coupled to a first port of the first duplexer, and a second output coupled to a first port of the second duplexer.

[0112]

[0123] Clause 8: The circuit described in any of Clauses 1 to 7, wherein the third and fourth terminals of the first multi-pole switch are coupled to each other and to the antenna port.

[0113]

[0124] Clause 9: A circuit described in any of Clauses 1 to 8, whose frequency band includes the n28 frequency band associated with fifth-generation (5G) New Radio (NR) communication technology.

[0114]

[0125] Clause 10: The circuit described in Clause 9, configured to support dual subscriber identification module (SIM) dual-active (DSDA) operation using simultaneous n28A transmission, n28A reception, and n28B reception, or using simultaneous n28B transmission, n28B reception, and n28A reception.

[0115]

[0126] Clause 11: A transceiver module comprising the circuitry described in any of Clauses 1 to 10.

[0116]

[0127] Clause 12: A method of wireless communication comprising: controlling a first multipole switch such that the ports of a first duplexer, configured to support a first transmit subband and a first receive subband of a frequency band, are coupled to an antenna port, and a second duplexer, configured to support a second transmit subband and a second receive subband of a frequency band, are coupled to an antenna port; amplifying a transmit signal through a first amplifier to generate an amplified transmit signal; and filtering the amplified transmit signal using the first duplexer to generate a filtered transmit signal in a first transmit subband for routing from the ports of the first duplexer through the first multipole switch to an antenna port for transmission, wherein the first multipole switch receives the signal from the antenna port through the first multipole switch A method in which the received signal is routed from the antenna port through a first multipole switch to the port of a second duplexer and is controlled to be filtered by the first duplexer to generate a first received signal in a first receiving subband, which may be routed from another port of the first duplexer to at least one second amplifier at the same time as the transmission of a filtered transmission signal in a first transmitting subband, and the received signal is controlled to be routed from the antenna port through a first multipole switch to the port of a second duplexer and is controlled to be filtered by the second duplexer to generate a second received signal in a second receiving subband, which may be routed from another port of the second duplexer to at least one second amplifier at the same time as the transmission of a filtered transmission signal in a first transmitting subband.

[0117]

[0128] Clause 13: The method according to Clause 12, wherein the first multi-pole switch includes a double-pole double-throw (DPDT) switch.

[0118]

[0129] Clause 14: The method according to either Clause 12 or 13, wherein at least one second amplifier includes a first low-noise amplifier (LNA) and a second LNA, and the method further includes amplifying a first received signal using the first LNA to produce an amplified first received signal, and amplifying a second received signal using the second LNA to produce an amplified second received signal.

[0119]

[0130] Clause 15: The method according to Clause 14, further comprising controlling a second multi-pole switch to selectively route an amplified first received signal to a first received path for signal processing and to selectively route an amplified second received signal to a second received path for signal processing.

[0120]

[0131] Clause 16: The method according to either Clause 12 or 13, wherein at least one second amplifier includes a low-noise amplifier (LNA), and the method further includes controlling a multi-throw switch or multiplexer to selectively route a first received signal or a second received signal to the LNA for amplification.

[0121]

[0132] Clause 17: The method according to Clause 16, wherein the multi-throw switch includes a single-pole double-throw (SPDT) switch.

[0122]

[0133] Clause 18: The method described in any of Clauses 12 to 17, wherein the frequency band includes the n28 frequency band associated with fifth-generation (5G) New Radio (NR) communication technology.

[0123]

[0134] Clause 19: The method according to Clause 18, wherein the reception of a first received signal in a first receiving subband and the reception of a second received signal in a second receiving subband support dual subscriber identification module (SIM) dual active (DSDA) operation, simultaneously with the transmission of a filtered transmitted signal in a first transmitting subband, using simultaneous n28A transmission, n28A reception, and n28B reception, or using simultaneous n28B transmission, n28B reception, and n28A reception.

[0124]

[0135] Clause 20: A processing system for wireless communication by a device, comprising one or more processors, the one or more processors individually or collectively executing instructions stored in one or more memories, and configured to cause the device to perform the method described in any one of Clauses 12 to 19.

[0125]

[0136] Clause 21: An apparatus comprising means for performing the method described in any one of Clauses 12 to 19.

[0126]

[0137] Clause 22: A non-temporary computer-readable medium comprising executable instructions, wherein when the executable instructions are executed individually or collectively by one or more processors of the device, the device causes the device to perform the method described in any one of Clauses 12 to 19.

[0127]

[0138] Clause 23: A computer program product embodied on a computer-readable storage medium, comprising code for performing the method described in any one of Clauses 12 to 19.

[0128] Additional considerations

[0139] The foregoing description is provided to enable any person skilled in the art to practice the various embodiments described herein. The embodiments discussed herein do not limit the scope, applicability, or embodiments set forth in the claims. Various modifications to these embodiments will be readily apparent to a person skilled in the art, and the general principles defined herein may be applied to other embodiments. For example, the function and configuration of the elements discussed may be modified without departing from the scope of this disclosure. Various embodiments may omit, substitute, or add various procedures or components as needed. For example, the methods described may be performed in an order different from the order described, and various actions may be added, omitted, or combined. Also, features described in some embodiments may be combined in some other embodiments. For example, an apparatus may be implemented or a method may be practiced using any number of embodiments described herein. Furthermore, the scope of this disclosure is intended to encompass apparatus or methods that are practiced using other structures, functions, or structures and functions in addition to, or other than, the various embodiments of this disclosure described herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0129]

[0140] The various exemplary logic blocks, modules, and circuits described in connection with this disclosure may be implemented or run using general-purpose processors, digital signal processors (DSPs), ASICs, field-programmable gate arrays (FPGAs) or other programmable logic devices (PLDs), discrete gate logic or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working with a DSP core, a system on a chip (SoC), or any other such configuration.

[0130]

[0141] As used herein, “processor,” “at least one processor,” or “one or more processors” generally refers to a single processor configured to perform one or more operations, or to multiple processors configured to collectively perform one or more operations. In the case of multiple processors, the execution of one or more operations may be divided among different processors, but one processor may perform multiple operations, or multiple processors may collectively perform a single operation. Similarly, “memory,” “at least one memory,” or “one or more memory” generally refers to a single memory configured to store data and / or instructions, or to multiple memory configured to collectively store data and / or instructions.

[0131]

[0142] Where used herein, the phrase “at least one of” the list of items refers to any combination of those items, including a single member. For example, “at least one of a, b, or c” is intended to include a, b, c, ab, ac, bc, and abc, as well as any combination having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other sequence of a, b, and c).

[0132]

[0143] As used herein, the term “determining” encompasses a wide range of actions. For example, “determining” may include calculating, computing, processing, deriving, investigating, searching (e.g., searching a table, database, or other data structure), and confirming. It may also include receiving (e.g., receiving information), accessing (e.g., accessing data in memory), and resolving, selecting, choosing, and establishing.

[0133]

[0144] The methods disclosed herein include one or more actions for achieving the method. The actions of those methods may be interchanged with one another without departing from the claims. In other words, unless a particular order of actions is specified, the order and / or use of any particular action may be modified without departing from the claims. Furthermore, various operations of the methods described above may be performed by any preferred means capable of performing the corresponding function. These means may include, but are not limited to, one or more hardware and / or software components, and / or one or more hardware and / or software modules, including circuits, application-specific integrated circuits (ASICs), or processors. For example, means for controlling the first multi-pole switch may include one or more processors, such as the controller / processor 280 and / or transmit processor 264 of the UE120a shown in Figure 2. Means for amplifying the transmitted signal may include PA318 shown in Figure 3, PA606 shown in Figure 6A, a first LNA630 shown in Figure 6A, a second LNA632 shown in Figure 6A, and / or LNA638 shown in Figure 6B. Means for filtering may include a first duplexer 614 and / or a second duplexer 616 shown in Figure 6A. Means for controlling the multi-throw switch or multiplexer may include one or more processors, such as the controller / processor 280 and / or receiving processor 258 of the UE120a shown in Figure 2.

[0134]

[0145] The following claims are not intended to be limited to the embodiments shown herein, but rather the full scope consistent with the language of the claims should be recognized. In the claims, singular references to elements are intended to mean "one or more" rather than "one and only one" unless explicitly stated otherwise. Unless otherwise stated, the term "several" refers to one or more. No element of the claims should be construed under Section 112(f) of the U.S. Patent Act unless it is explicitly enumerated using the phrase "means to...". All structural and functional equivalents of elements of various embodiments described throughout this disclosure, which are known to or will become known to those skilled in the art, are expressly incorporated by reference herein and are intended to be encompassed by the claims. Furthermore, nothing disclosed herein is intended to be made public, regardless of whether such disclosure is expressly enumerated in the claims.

Claims

1. A circuit for wireless communication, A first duplexer configured to support a first transmit subband and a first receive subband of a frequency band, the first duplexer including a first port, a second port, and a third port, A second duplexer configured to support a second transmit subband and a second receive subband of the frequency band, the second duplexer including a first port, a second port, and a third port, A first amplifier having at least one output coupled to the first port of the first duplexer and the first port of the second duplexer, A second amplifier comprising at least one input coupled to the second port of the first duplexer and the second port of the second duplexer, A first multi-pole switch comprising a first terminal, a second terminal, a third terminal, and a fourth terminal, The first terminal of the first multi-pole switch is connected to the third port of the first duplexer, The second terminal of the first multi-pole switch is connected to the third port of the second duplexer, Based on the control signal, the third terminal is selectively coupled to the first terminal, and the fourth terminal is selectively coupled to the second terminal. circuit.

2. The circuit according to claim 1, wherein the first multi-pole switch includes a double-pole double-throw (DPDT) switch.

3. The circuit according to claim 1, wherein the at least one second amplifier includes a first low-noise amplifier (LNA) and a second LNA, the second port of the first duplexer being coupled to the input of the first LNA and the second port of the second duplexer being coupled to the input of the second LNA.

4. The circuit according to claim 3, further comprising a second multi-pole switch having a first input coupled to the output of the first LNA and a second input coupled to the output of the second LNA.

5. The multithrow switch or multiplexer further comprises, the at least one second amplifier includes a low-noise amplifier (LNA), and the multithrow switch or the multiplexer, The first input connected to the second port of the first duplexer, The second input connected to the second port of the second duplexer, The output coupled to the input of the LNA, The circuit according to claim 1, including the following:

6. The circuit according to claim 5, wherein the multi-throw switch includes a single-pole double-throw (SPDT) switch.

7. The circuit according to claim 1, wherein the frequency band includes the n28 frequency band associated with fifth-generation (5G) nu-radio (NR) communication technology.

8. The circuit according to claim 7, wherein the circuit is configured to support dual subscriber identification module (SIM) dual-active (DSDA) operation using simultaneous n28A transmission, n28A reception, and n28B reception, or using simultaneous n28B transmission, n28B reception, and n28A reception.

9. The system further comprises a demultiplexer or a multi-throw switch, wherein the at least one first amplifier includes a power amplifier (PA), and the demultiplexer or the multi-throw switch is The input coupled to the output of the PA, A first output coupled to the first port of the first duplexer, The second output coupled to the first port of the second duplexer, The circuit according to claim 1, including the following:

10. The circuit according to claim 1, wherein the third terminal and the fourth terminal of the first multi-pole switch are coupled to each other and to the antenna port.

11. A transceiver module comprising the circuit described in claim 1.

12. A method of wireless communication, The first multi-pole switch, A first duplexer, configured to support a first transmit subband and a first receive subband of a frequency band, wherein the port of the first duplexer is coupled to an antenna port, A second duplexer, configured to support a second transmit subband and a second receive subband of the frequency band, is controlled so that the port of the second duplexer is coupled to the antenna port. To generate an amplified transmission signal, the transmission signal is amplified through a first amplifier, The first duplexer filters the amplified transmit signal to generate a filtered transmit signal within a first transmit subband for routing from the port of the first duplexer through the first multipole switch to the antenna port for transmission, wherein the first multipole switch The received signal is routed from the antenna port through the first multipole switch to the port of the first duplexer, and the first received signal in the first receiving subband may be routed from another port of the first duplexer to at least one second amplifier simultaneously with the transmission of the filtered transmitted signal in the first transmitting subband, and may be filtered by the first duplexer to generate the first received signal in the first receiving subband, and The received signal is routed from the antenna port through the first multipole switch to the port of the second duplexer, and is controlled to potentially be filtered by the second duplexer to generate a second received signal in the second receiving subband, which may be routed from another port of the second duplexer to the at least one second amplifier simultaneously with the transmission of the filtered transmit signal in the first transmit subband. method.

13. The method according to claim 12, wherein the first multi-pole switch includes a double-pole double-throw (DPDT) switch.

14. The at least one second amplifier includes a first low-noise amplifier (LNA) and a second LNA, and the method is To generate an amplified first received signal, the first received signal is amplified using the first LNA, To generate an amplified second received signal, the second received signal is amplified using the second LNA, The method according to claim 12, further comprising:

15. The method according to claim 14, further comprising controlling a second multi-pole switch to selectively route the amplified first received signal to a first receiving path for signal processing, and to selectively route the amplified second received signal to a second receiving path for signal processing.

16. The method according to claim 12, wherein the at least one second amplifier includes a low-noise amplifier (LNA), and the method further includes controlling a multi-throw switch or multiplexer to selectively route the first received signal or the second received signal to the LNA for amplification.

17. The method according to claim 16, wherein the multi-throw switch includes a single-pole double-throw (SPDT) switch.

18. The method according to claim 12, wherein the frequency band includes the n28 frequency band associated with fifth-generation (5G) nu-radio (NR) communication technology.

19. The method according to claim 18, wherein the reception of the first received signal in the first received subband and the reception of the second received signal in the second received subband support dual subscriber identification module (SIM) dual active (DSDA) operation simultaneously with the transmission of the filtered transmitted signal in the first transmitted subband, using simultaneous n28A transmission, n28A reception, and n28B reception, or using simultaneous n28B transmission, n28B reception, and n28A reception.

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