Techniques for managing power amplifier reliability for multi-sim antenna switching concurrency

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can detect a first communication associated with a first subscriber identity module (SIM) operating in a connected mode that at least partially overlaps in the time domain with a second communication associated with a second SIM operating in an idle mode. The UE can detect that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch. The UE can perform a preventative action based at least in part on the first communication associated with the first SIM overlapping in the time domain with the second communication associated with the second SIM while the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch. Numerous other aspects are described.

Description

[0001] Cross-references to related applications

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 199,675, filed January 15, 2021, entitled “TECHNIQUES FOR MANAGING POWER AMPLIFIER RELIABILITY FOR MULTI-SIM ANTENNA SWITCHING CONCURRENCY,” and U.S. Non-Provisional Patent Application No. 17 / 644,190, filed December 14, 2021, entitled “TECHNIQUES FOR MANAGING POWER AMPLIFIER RELIABILITY FOR MULTI-SIM ANTENNA SWITCHING CONCURRENCY,” both of which are hereby expressly incorporated by reference.

[0003] open field

[0004] Various aspects of this disclosure generally relate to wireless communication and techniques and apparatus for managing the reliability of power amplifiers used in managing the concurrency of multi-subscriber identity module (multi-SIM) antenna switching.

[0005] Related technical descriptions

[0006] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is an enhancement set of the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

[0007] A wireless network may include several base stations (BSs) capable of supporting communication between several user equipments (UEs). UEs can communicate with the BS via downlinks and uplinks. A "downlink" (or "forward link") refers to the communication link from the BS to the UE, while an "uplink" (or "backlink") refers to the communication link from the UE to the BS. As will be described in more detail herein, the BS may be referred to as a B-node, gNB, access point (AP), radio headend, transmit / receive point (TRP), new radio (NR) BS, 5G B-node, etc.

[0008] The above multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different user equipment to communicate at the city, country, region, and even global levels. NR (which can also be referred to as 5G) is an enhancement set of the LTE mobile standard issued by 3GPP. NR is designed to better support mobile broadband Internet access by using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) (CP-OFDM) on the downlink (DL), and using CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation to improve spectral efficiency, reduce costs, improve service, utilize new spectrum, and better integrate with other open standards. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to grow.

[0009] Overview

[0010] In some aspects, a method of wireless communication performed by a user equipment (UE) includes: detecting a first communication associated with a first subscriber identity module (SIM) operating in a connected mode, the first communication overlapping at least partially in the time domain with a second communication associated with a second SIM operating in an idle mode; detecting that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and performing a preventative action at least partially based on the time domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.

[0011] In some respects, the second communication associated with the second SIM includes activities for preparing or programming one or more components in the receiver chain associated with the second SIM to demodulate or decode received signals.

[0012] In some respects, this preventative action is to limit the permissible output power from the transmit chain associated with the first SIM to the maximum value of a robustness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.

[0013] In some respects, the maximum allowable output power is the minimum of the robustness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.

[0014] In some respects, the preventative action is to stop or suspend transmission activities associated with the first SIM when the first communication associated with the first SIM overlaps with the second communication associated with the second SIM in the time domain.

[0015] In some aspects, the method includes: resuming the transmission activity associated with the first SIM based at least in part on the time-domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM.

[0016] In some respects, the preventative action is to deny the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM.

[0017] In some aspects, the method includes: determining a first priority of the first communication associated with the first SIM and a second priority of the second communication associated with the second SIM; and selecting the preventive action based at least in part on the first priority and the second priority.

[0018] In some respects, the preventative action is based at least in part on the fact that the second communication associated with the second SIM has a higher priority than the first communication associated with the first SIM, thereby limiting the permissible output power from the transmit chain associated with the first SIM or stopping or suspending transmission activities associated with the first SIM.

[0019] In some respects, the preventative action is based at least in part on the fact that the first communication associated with the first SIM has a higher priority than the second communication associated with the second SIM, thus rejecting the second communication associated with the second SIM that overlaps with the first communication associated with the first SIM in the time domain.

[0020] In some aspects, a UE for wireless communication includes: a memory; and one or more processors coupled to the memory, the one or more processors being configured to: detect a first communication associated with a first SIM operating in a connected mode, the first communication at least partially overlapping in the time domain with a second communication associated with a second SIM operating in an idle mode; detect that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and perform a preventative action at least partially based on the time domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.

[0021] In some respects, the second communication associated with the second SIM includes activities for preparing or programming one or more components in the receiver chain associated with the second SIM to demodulate or decode received signals.

[0022] In some respects, this preventative action is to limit the permissible output power from the transmit chain associated with the first SIM to the maximum value of a robustness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.

[0023] In some respects, the maximum allowable output power is the minimum of the robustness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.

[0024] In some respects, the preventative action is to stop or suspend transmission activities associated with the first SIM when the first communication associated with the first SIM overlaps with the second communication associated with the second SIM in the time domain.

[0025] In some respects, the one or more processors are further configured to: resume the transmission activity associated with the first SIM at least in part based on the time-domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM.

[0026] In some respects, the preventative action is to deny the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM.

[0027] In some aspects, the one or more processors are further configured to: determine a first priority of the first communication associated with the first SIM and a second priority of the second communication associated with the second SIM; and select the preventive action based at least in part on the first priority and the second priority.

[0028] In some respects, the preventative action is based at least in part on the fact that the second communication associated with the second SIM has a higher priority than the first communication associated with the first SIM, thereby limiting the permissible output power from the transmit chain associated with the first SIM or stopping or suspending transmission activities associated with the first SIM.

[0029] In some respects, the preventative action is based at least in part on the fact that the first communication associated with the first SIM has a higher priority than the second communication associated with the second SIM, thus rejecting the second communication associated with the second SIM that overlaps with the first communication associated with the first SIM in the time domain.

[0030] In some aspects, a non-transient computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: detect a first communication associated with a first SIM operating in a connected mode, the first communication at least partially overlapping in the time domain with a second communication associated with a second SIM operating in an idle mode; detect that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and perform a preventative action at least partially based on the time domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.

[0031] In some respects, the second communication associated with the second SIM includes activities for preparing or programming one or more components in the receiver chain associated with the second SIM to demodulate or decode received signals.

[0032] In some respects, the one or more instructions further cause the UE to: limit the permissible output power from the transmit chain associated with the first SIM to meet the maximum value of a robustness or reliability parameter associated with a power amplifier in the transmit chain associated with the first SIM.

[0033] In some respects, the maximum allowable output power is the minimum of the robustness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.

[0034] In some respects, the one or more instructions further cause the UE to: stop or suspend transmission activities associated with the first SIM when the first communication associated with the first SIM overlaps with the second communication associated with the second SIM in the time domain.

[0035] In some respects, the one or more instructions further cause the UE to: resume the transmission activity associated with the first SIM at least in part based on the cessation of the first communication associated with the first SIM overlapping with the second communication associated with the second SIM in the time domain.

[0036] In some respects, the one or more instructions further cause the UE to: reject the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM.

[0037] In some respects, the one or more instructions further enable the UE to: determine a first priority of the first communication associated with the first SIM and a second priority of the second communication associated with the second SIM; and select the preventive action based at least in part on the first priority and the second priority.

[0038] In some respects, the one or more instructions further cause the UE to: limit the permissible output power from the transmit chain associated with the first SIM or stop or suspend transmission activities associated with the first SIM, at least in part, based on the fact that the second communication associated with the second SIM has a higher priority than the first communication associated with the first SIM.

[0039] In some respects, the one or more instructions further cause the UE to: reject, at least in part, a second communication associated with the second SIM that overlaps with the first communication associated with the first SIM in the time domain, based on the fact that the first communication associated with the first SIM has a higher priority than the second communication associated with the second SIM.

[0040] In some aspects, an apparatus for wireless communication includes: means for detecting a first communication associated with a first SIM operating in a connected mode, the first communication at least partially overlapping in the time domain with a second communication associated with a second SIM operating in an idle mode; means for detecting that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and means for performing a preventative action at least partially based on the time domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.

[0041] In some respects, the second communication associated with the second SIM includes activities for preparing or programming one or more components in the receiver chain associated with the second SIM to demodulate or decode received signals.

[0042] In some aspects, the device includes means for limiting the permissible output power from the transmit chain associated with the first SIM to a maximum value of a robustness or reliability parameter associated with a power amplifier in the transmit chain associated with the first SIM.

[0043] In some respects, the maximum allowable output power is the minimum of the robustness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.

[0044] In some aspects, the device includes means for stopping or suspending transmission activities associated with the first SIM when the first communication associated with the first SIM overlaps with the second communication associated with the second SIM in the time domain.

[0045] In some aspects, the device includes means for resuming the transmission activity associated with the first SIM based at least in part on the time-domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM.

[0046] In some aspects, the device includes means for rejecting a second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM.

[0047] In some aspects, the device includes: means for determining a first priority of the first communication associated with the first SIM and a second priority of the second communication associated with the second SIM; and means for selecting the preventive action based at least in part on the first priority and the second priority.

[0048] In some aspects, the device includes means for limiting the permissible output power of the transmit chain associated with the first SIM or stopping or suspending transmission activities associated with the first SIM, at least in part, based on the fact that the second communication associated with the second SIM has a higher priority than the first communication associated with the first SIM.

[0049] In some aspects, the device includes means for rejecting a second communication associated with the second SIM that overlaps with the first communication associated with the first SIM in the time domain, based at least in part on the fact that the first communication associated with the first SIM has a higher priority than the second communication associated with the second SIM.

[0050] The terms generally include, as described herein with reference to the accompanying drawings and description, methods, apparatus, systems, computer program products, non-transient computer-readable media, user equipment, base stations, wireless communication devices and / or processing systems, as illustrated in the drawings and description.

[0051] The foregoing has broadly outlined the features and technical advantages of the examples according to this disclosure in an effort to facilitate a better understanding of the following detailed description. Additional features and advantages will be described thereafter. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for implementing the same purposes as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and their associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and not for defining limitations on the claims.

[0052] While aspects are described herein by way of example, those skilled in the art will understand that such aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects may be implemented via integrated chip embodiments or other devices based on non-modular components (e.g., end-user equipment, vehicles, communication equipment, computing devices, industrial equipment, retail / shopping devices, medical devices, or AI-enabled devices). Aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, or system-level components. Devices incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals may include several components (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or summers) for analog and digital purposes. The aspects described herein are intended to be practiced in a wide variety of devices, components, systems, distributed arrangements, or end-user equipment of various sizes, shapes, and configurations. Brief description of the attached diagram

[0054] To gain a more detailed understanding of the features described above in this disclosure, reference can be made to various aspects of the above brief overview, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and should not be considered as limiting its scope, as other equivalent aspects are permissible in this description. Identical reference numerals in different drawings may identify the same or similar elements.

[0055] Figure 1This is a diagram illustrating an example of a wireless network according to this disclosure.

[0056] Figure 2 This is a diagram illustrating an example of communication between a base station and a user equipment (UE) in a wireless network according to this disclosure.

[0057] Figure 3 This is a diagram illustrating an example of the transmit chain and receive chain of a UE according to this disclosure.

[0058] Figure 4 This is a diagram illustrating an example of a multi-subscriber identity module (multi-SIM) UE according to this disclosure.

[0059] Figures 5A-5E This is a diagram illustrating an example of concurrent transmission and reception operations that could lead to potential power amplifier reliability issues in a multi-SIM UE, according to this disclosure.

[0060] Figures 6A-6B This is a diagram illustrating an example of the reliability of a power amplifier associated with managing the concurrency of multi-SIM antenna switching according to this disclosure.

[0061] Figure 7 This is a diagram illustrating an example process related to the reliability of a power amplifier for managing multi-SIM antenna switching concurrency according to this disclosure.

[0062] Figure 8 This is a block diagram of an example device for wireless communication according to the present disclosure.

[0063] Detailed description

[0064] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as being limited to any specific structure or function given throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or method of practice. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods practiced using additional structures, functionalities, or structures and functionalities that complement or supplement the various aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be implemented by one or more elements of the claims.

[0065] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and explained in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively, "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0066] It should be noted that although the aspects herein may be described using terms commonly associated with 5G or NR radio access technology (RAT), the aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or RATs after 5G (e.g., 6G).

[0067] Figure 1 This is a diagram illustrating an example of a wireless network 100 according to this disclosure. The wireless network 100 may be a 5G (NR) network and / or an LTE network, etc., or may include its elements. The wireless network 100 may include several base stations 110 (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, B-node, gNB, 5G B-node (NB), access point, transmit / receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0068] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. Macrocells can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UEs with a service subscription. Picocells can cover a relatively small geographic area and allow unrestricted access by UEs with a service subscription. Femtocells can cover a relatively small geographic area (e.g., a residential area) and allow restricted access by UEs associated with that femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS used for macrocells may be referred to as a macro BS. A BS used for picocells may be referred to as a pico BS. A BS used for femtocells may be referred to as a femto BS or a home BS. Figure 1In the example shown, BS 110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “B node,” “5G NB,” and “cell” are used interchangeably herein.

[0069] In some respects, the cell may not be stationary, and the geographical area of ​​the cell may move depending on the location of the mobile BS. In some respects, BSs may interconnect with each other and / or interconnect to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections or virtual networks, using any suitable transport network).

[0070] The wireless network 100 may also include a relay station. A relay station is an entity capable of receiving data transmissions from an upstream station (e.g., a BS or a UE) and transmitting those data transmissions to a downstream station (e.g., a UE or a BS). A relay station can also be a UE capable of relaying transmissions for other UEs. Figure 1 In the example shown, relay BS 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS can also be referred to as a relay station, relay base station, relay, etc.

[0071] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) such as macro BSs, pico BSs, femto BSs, relay BSs, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs may have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts).

[0072] Network controller 130 can be coupled to a set of Base Stations (BSs) and can provide coordination and control over these BSs. Network controller 130 can communicate with each BS via backhaul. These BSs can also communicate with each other directly or indirectly via wireless or wired backhaul.

[0073] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet, camera, gaming device, netbook, smartbook, ultrabook, medical device or equipment, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), entertainment device (e.g., music or video device, or satellite radio), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0074] Some UEs may be considered Machine-Type Communication (MTC) UEs, or evolved or enhanced Machine-Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, instruments, monitors, and / or location tags that can communicate with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes may provide connectivity to or to a network (e.g., a wide area network, such as the Internet or a cellular network) via wired or wireless communication links, for example. Some UEs may be considered Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered Customer Premises Equipment (CPE). UE 120 may be included within a housing that houses components of UE 120, such as processor components and / or memory components. In some aspects, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0075] Generally, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0076] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this scenario, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as performed by base station 110.

[0077] Devices in the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in the wireless network 100 can communicate using an operating band with a first frequency range (FR1) and / or an operating band with a second frequency range (FR2), where the first frequency range (FR1) spans from 410 MHz to 7.125 GHz and the second frequency range (FR2) spans from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as intermediate frequency bands. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the "sub-6 GHz" band. Similarly, although different from the extremely high frequency (EHF) band (30 GHz–300 GHz) designated as the "millimeter wave" band by the International Telecommunication Union (ITU), FR2 is often referred to as the "millimeter wave" band. Therefore, unless otherwise stated, it should be understood that, if used herein, the terms "sub-6 GHz" and the like can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequency band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise stated, it should be understood that, if used herein, the terms "millimeter wave" and the like can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequency band frequencies (e.g., less than 24.25 GHz). It is conceivable that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0078] As indicated above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0079] Figure 2This is a diagram illustrating an example 200 of communication between a base station 110 and a UE 120 in a wireless network 100 according to this disclosure. The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, wherein generally T≥1 and R≥1.

[0080] At base station 110, transmit processor 220 can receive data destined for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from each UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively.

[0081] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on these received symbols where applicable, and provide detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) these detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine parameters such as Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or CQI. In some respects, one or more components of the UE 120 may be included in the housing 284.

[0082] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0083] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or be included therein, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or multiple antenna elements within housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include elements coupled to one or more transmission and / or reception components (such as...). Figure 2 One or more antenna elements (one or more components).

[0084] On the uplink, at UE 120, transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., reports including RSRP, RSSI, RSRQ, and / or CQI). Transmit processor 264 can also generate reference symbols for one or more reference signals. Symbols from transmit processor 264 may be pre-encoded by TX MIMO processor 266 where applicable, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, modulators and demodulators (e.g., MOD / DEMOD 254) of UE 120 may be included in the modem of UE 120. In some aspects, UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receiver processors 258, transmitter processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein.

[0085] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 where applicable, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of base station 110 may be included in the modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receiver processors 238, transmitter processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein.

[0086] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2Any other component may perform one or more techniques associated with the reliability of the power amplifiers managing the concurrency of multi-subscriber identity module (SIM) antenna switching, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component may execute or direct, for example Figure 7 The operation of process 700 and / or other processes as described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include: a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, when executed by one or more processors of base station 110 and / or UE 120 (e.g., direct execution, or execution after compilation, transformation, and / or interpretation), the one or more processors, UE 120, and / or base station 110 may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example... Figure 7 The operation of process 700 and / or other processes as described herein. In some aspects, the execution instructions may include run instructions, translate instructions, compile instructions, and / or interpret instructions, etc.

[0087] In some aspects, UE 120 includes: means for detecting a first communication associated with a first SIM operating in connected mode, the first communication at least partially overlapping in the time domain with a second communication associated with a second SIM operating in idle mode; means for detecting a positive shared antenna switch between a transmit chain associated with the first SIM and a receive chain associated with the second SIM; and / or means for performing preventative action at least partially based on the time domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are positively sharing an antenna switch. Means for the user equipment (UE) to perform the operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0088] In some aspects, UE 120 includes means for resuming transmission activity associated with the first SIM based at least in part on the time-domain overlap of a first communication associated with the first SIM with a second communication associated with the second SIM.

[0089] In some aspects, UE 120 includes: means for determining a first priority of a first communication associated with a first SIM and a second priority of a second communication associated with a second SIM; and / or means for selecting a preventive action based at least in part on the first priority and the second priority.

[0090] although Figure 2 The boxes in the diagram are interpreted as different components, but the functions described above with respect to these boxes can be implemented using a single hardware component, software component, or combination of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by controller / processor 280 or under the control of controller / processor 280.

[0091] As indicated above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

[0092] Figure 3 This is a diagram illustrating example 300 of the transmit (Tx) chain 302 and receive (Rx) chain 304 of UE 120 according to this disclosure. In some aspects, one or more components of the Tx chain 302 may be combined as described above. Figure 2 The Tx chain 302 is implemented in the described transmit processor 264, TX MIMO processor 266, MOD / DEMOD 254, and / or controller / processor 280. In some aspects, the Tx chain 302 may be implemented in the UE 120 for transmitting data 306 (e.g., uplink data, uplink reference signals, and / or uplink control information) to the base station 110 on the uplink channel and / or to another UE 120 on the sidelink channel.

[0093] Encoder 307 can convert signal (e.g., bit stream) 303 into data 306. The data 306 to be transmitted is provided as input from encoder 307 to serial-to-parallel (S / P) converter 308. In some aspects, S / P converter 308 can split the transmitted data into N parallel data streams 310.

[0094] N parallel data streams 310 can then be provided as input to mapper 312. Mapper 312 can map the N parallel data streams 310 onto N constellation points. The mapping can be accomplished using modulation constellations such as binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 8-phase shift keying (8PSK), quadrature amplitude modulation (QAM), etc. Thus, mapper 312 can output N parallel symbol streams 316, each symbol stream 316 corresponding to one of the N quadrature subcarriers of inverse fast Fourier transform (IFFT) component 320. These N parallel symbol streams 316 are represented in the frequency domain and can be converted by IFFT component 320 into N parallel time-domain sample streams 318.

[0095] In some respects, N parallel modulations in the frequency domain correspond to N modulation symbols in the frequency domain. These N modulation symbols are equal to N mappings and N-point IFFTs in the frequency domain, which is equivalent to one (useful) OFDM symbol in the time domain, which is equal to N samples in the time domain. One OFDM symbol Ns in the time domain is equal to Ncp (the number of guard samples per OFDM symbol) + N (the number of useful samples per OFDM symbol).

[0096] N parallel time-domain sample streams 318 can be converted into an OFDM / OFDMA symbol stream 322 by a parallel-to-serial (P / S) converter 324. A guard insertion component 326 can insert guard intervals between successive OFDM / OFDMA symbols in the OFDM / OFDMA symbol stream 322. The output of the guard insertion component 326 can then be up-converted to the desired transmission frequency band by a radio frequency (RF) front-end 328, which may include a power amplifier (PA), one or more antenna switches, and / or one or more other suitable components. The antenna 330 can then transmit the resulting signal 332.

[0097] In some respects, Rx chain 304 can utilize OFDM / OFDMA. In some respects, one or more components of Rx chain 304 can be combined as described above. Figure 2 The described receiver processor 258, MIMO detector 256, MOD / DEMOD 254, and / or controller / processor 280 are implemented. In some aspects, the Rx chain 304 may be implemented in the UE 120 for receiving data 306 (e.g., downlink data, downlink reference signals, and / or downlink control information) from the base station 110 on the downlink channel and / or from another UE 120 on the sidelink channel.

[0098] The transmitted signal 332 is shown traveling from Tx chain 302 to Rx chain 304 on wireless channel 334. When signal 332' is received by antenna 330', the received signal 332' can be down-converted to a baseband signal by RF front-end 328', which may include a low-noise amplifier (LNA), one or more antenna switches, and / or one or more other suitable components. Protection removal component 326' can then remove the guard interval inserted between OFDM / OFDMA symbols by protection insertion component 326.

[0099] The output of the protection removal component 326' can be provided to the S / P converter 324'. This output can include an OFDM / OFDMA symbol stream 322', and the S / P converter 324' can divide the OFDM / OFDMA symbol stream 322' into N parallel time-domain symbol streams 318', each corresponding to one of the N orthogonal subcarriers. A Fast Fourier Transform (FFT) component 320' can transform the N parallel time-domain symbol streams 318' into the frequency domain and output N parallel frequency-domain symbol streams 316'.

[0100] Demapper 312' performs the inverse operation of the symbol mapping operation performed by mapper 312, thereby outputting N parallel data streams 310'. P / S converter 308' combines the N parallel data streams 310' into a single data stream 306'. Ideally, data stream 306' corresponds to the data 306 provided as input to Tx chain 302. Data stream 306' can be decoded by decoder 307' into decoded data stream 303'.

[0101] Figure 3 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 3 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 3 The two or more components shown can be implemented within a single component, or Figure 3 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 3 The set of components shown (e.g., one or more components) can be executed as described by Figure 3 The other set of components shown performs one or more functions.

[0102] Figure 4 This is a diagram illustrating an example 400 of a multi-SIM UE according to this disclosure. For example... Figure 4As shown, UE 120 can be a multi-SIM (multi-SIM) UE comprising multiple SIMs (two or more SIMs), shown as a first SIM 405a and a second SIM 405b. The first SIM 405a may be associated with a first subscription (shown as SUB1 (Subscription 1)), while the second SIM 405b may be associated with a second subscription (shown as SUB2 (Subscription 2)). Subscriptions may include subscriptions to network operators (e.g., mobile network operators (MNOs)) that enable UE 120 to access a wireless network (e.g., a radio access network (RAN)) associated with that network operator. In some aspects, the first and second subscriptions may be associated with the same network operator or with different network operators.

[0103] SIM 405 can be a removable SIM (e.g., a SIM card) or an embedded SIM. SIM 405 may include an integrated circuit that securely stores an International Mobile Subscriber Identity (IMSI) and a security key used to identify and authenticate the corresponding subscription associated with SIM 405. In some cases, SIM 405 may store a list of permitted services that UE 120 can access using the subscription associated with SIM 405, such as data services or voice services, etc.

[0104] like Figure 4 As further shown, UE 120 can communicate with first base station 410a via first SIM 405a through first cell 415a (shown as cell 1) (e.g., in connected mode, idle mode, or inactive mode). In this case, UE 120's first subscription can be used to access first cell 415a (e.g., using the first IMSI for UE identification, using the first security key for UE authentication, using a first list of services that UE 120 is permitted to access using the first subscription, or counting data or voice usage on the first cell by referring to the first subscription, etc.). Similarly, UE 120 can communicate with second base station 410b via second cell 415b (shown as cell 2) using second SIM 405b (e.g., in connected mode, idle mode, or inactive mode). In this scenario, the second subscription of UE 120 can be used to access the second cell 415b (e.g., using the second IMSI for UE identification, using the second security key for UE authentication, using the second service list that UE 120 is permitted to access using the second subscription, or counting data or voice usage on the second cell by referring to the second subscription, etc.).

[0105] The first base station 410a and / or the second base station 410b may include the above combination Figure 1One or more of the described base stations 110. Although the first cell 415a and the second cell 415b are shown as being provided by different base stations, in some respects, the first cell 415a and the second cell 415b may be provided by the same base station. Thus, in some respects, the first base station 410a and the second base station 410b may be integrated into a single base station.

[0106] In some scenarios, UE 120 may be a single-receiver (SR) (sometimes also referred to as a single-radio) multi-SIM UE, such as an SR multi-SIM multi-standby (SR-MSMS) UE or a single-receiver dual-SIM dual-standby (SR-DSDS) UE, etc. A multi-SIM UE may be able to switch between two separate mobile network services and may include hardware for maintaining multiple connections in standby mode (e.g., one connection per SIM), or may include hardware for maintaining multiple network connections simultaneously (e.g., multiple transceivers), etc. However, an SR-DSDS UE or SR-MSMS UE may only be able to receive data on one connection at a time because radio frequency resources are shared among multiple subscriptions. For example, an SR-DSDS UE or SR-MSMS UE may be associated with multiple subscriptions, but may only include a single transceiver shared by those multiple subscriptions, a single transmit chain shared by those multiple subscriptions, or a single receive chain shared by those multiple subscriptions, etc.

[0107] Alternatively, in some cases, UE 120 may have dual receive, dual SIM, dual standby (DR-DSDS) capability, which allows both SIMs 405a and 405b to receive concurrently, but only one SIM can transmit at a time (e.g., on a time-division basis). For example, transmit and receive operations can be enabled for the first SIM 405a in connected mode, and receive operations can be enabled for the second SIM 405b only when the first SIM 405a is in connected mode, or vice versa.

[0108] As indicated above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0109] Figures 5A-5E This is a diagram illustrating example 500 of concurrent transmit and receive operations that could lead to potential power amplifier reliability problems in a multi-SIM UE according to this disclosure. In some cases, as described herein, example 500 relates to concurrent transmit and receive operations that may occur in a multi-SIM UE with DR-DSDS capability, wherein the first SIM ( Figures 5A-5E The second SIM (SIM1) can operate in a connectivity mode with transmit (Tx) and receive (Rx) operations enabled, while the third SIM (SIM1) can operate in a connectivity mode with transmit (Tx) and receive (Rx) operations enabled. Figures 5A-5EThe second SIM (denoted as SIM2) can operate in an idle mode where only Rx operations are enabled. Accordingly, in some cases, Rx activities associated with the second SIM can run concurrently with Tx activities associated with the first SIM.

[0110] For example, such as Figure 5A As shown in Figures 510-1 and 510-2, when the first SIM associated with the multi-SIM UE is in connected mode, a Time Division Duplex (TDD) mode can be configured for that first SIM (e.g., by the base station). As illustrated, the TDD mode typically indicates that a time slot is configured as a downlink time slot (…). Figure 5A The middle part is shown as DD), uplink time slot ( Figure 5A (shown as UU), or a special time slot ( Figure 5A (Shown as DS), in downlink time slots, Rx activity can be scheduled for multiple SIM UEs, and in uplink time slots, Tx activity can be scheduled for multiple SIM UEs. In a specific time slot, one or more symbols in the earlier portion of the time slot are used for Rx activity, and one or more symbols in the later portion of the time slot are used for transitioning from Rx activity to Tx activity. See below for reference. Figure 5B-5E In further detail, a multi-SIM UE may include multiple antennas and an RF front-end (RFFE) with multiple antenna switches, which allows the Tx chain to select a specific transmit antenna via the antenna switches in the RFFE (e.g., based on Antenna Switching Diversity (Asdiv) technology and / or Probe Reference Signal (SRS) antenna switching configuration). Accordingly, in specific time slots, the multi-SIM UE may prepare and / or program the analog and / or digital components in the Tx chain for transmission, which may include switching one or more antenna switches to connect the Tx chain to a specific transmit antenna.

[0111] like Figure 5A As further illustrated by reference numerals 512-1 and 512-2, DR-DSDS concurrency can be enabled for the second SIM when it is in idle mode. For example, DR-DSDS concurrency generally allows one SIM to concurrently perform Tx or Rx operations with another SIM in RX operations. However, in some cases, the first and second SIMs may be associated with different radio networks provided by different network operators, thus the concurrent activities associated with these two SIMs may be out of sync. In other words, Rx activities scheduled for the second SIM operating in idle mode may at least partially overlap with Tx activities scheduled for the first SIM operating in connected mode in the time domain.

[0112] For example, as shown by reference numeral 512-1, the second SIM may be scheduled for Rx activities such as paging reception (e.g., during paging events associated with a multi-SIM UE) at a time that begins before the uplink time slot for the first SIM and overlaps with the uplink time slot for scheduling Tx activities for the first SIM. In this case, as shown by reference numeral 514-1, if the first and second SIMs are connected to the same antenna switch, the Tx activities of the first SIM may be disrupted when the second SIM transitions from performing Rx activities to the off state, potentially leading to damage or reliability issues with the power amplifiers in the Tx chain. Additionally or alternatively, as shown by reference numeral 512-2, the second SIM may be scheduled for Rx activities at a time that begins during the uplink time slot for the first SIM. In this case, as shown by reference numeral 514-2, if the first and second SIMs are connected to the same antenna switch, the second SIM's transition from the off state to performing Rx activities while the first SIM is performing ongoing Tx activities may cause damage or reliability issues with the power amplifiers in the Tx chain.

[0113] Accordingly, in the case of a multi-SIM UE with DR-DSDS capability including a first SIM operating in connected mode and a second SIM operating in idle mode, where the first SIM and the second SIM share an antenna switch and the Rx activity of the second SIM overlaps at least partially with the Tx activity of the first SIM in the time domain, the RX activity of the second SIM may cause damage or reliability problems to the power amplifier in the Tx chain associated with the first SIM.

[0114] For example, Figure 5B-5E Examples 520-1, 520-2, 520-3, and 520-4 illustrate various RF architectures, including multiple antennas and multiple antenna switches, to support DR-DSDS capabilities in multi-SIM UEs. For example, as... Figure 5B-5E As shown, a SIM in connectivity mode may include a Tx chain with a power amplifier (PA) configured to transmit (e.g., transfer power) toward multiple antennas. The power amplifier may be connected to a switching element that switches between the Tx chain and a low-noise amplifier (LNA) associated with the main receive (PRx) path. Figure 5B-5E As shown by reference numerals 521-1 to 522-4 in the accompanying drawings, the switching element can be coupled to a dedicated antenna (antenna 1) and can (e.g., based on Asdiv technology and / or SRS antenna switching configuration) perform antenna selection to connect the Tx chain to a second antenna (e.g., antenna 2, antenna 3, or antenna 4).

[0115] Accordingly, when the first SIM is in connected mode, it can operate in TDD device hopping mode, thereby allowing the Tx chain associated with the first SIM to switch between different antennas, while the Rx hardware paths to different antennas remain in their default configuration (e.g., the Rx chain does not switch between different antennas to minimize RFFE loss due to switching). For example, in Figure 5B In this example, the diversity reception (DRx) path of the first SIM is connected to the second antenna, the PRx path of the second SIM is connected to the third antenna, and the DRx path of the second SIM is connected to the fourth antenna. In other examples, Figure 5C The explanation details the DRx path of the first SIM and the PRx path of the second SIM, which are connected to the second antenna, and the Rx configuration of the DRx path of the second SIM, which is connected to the third antenna. Figure 5D The explanation details the DRx path of the first SIM and the PRx path of the second SIM connected to the second antenna, and the DRx path of the second SIM connected to the Rx configuration of the fourth antenna. Figure 5E The explanation details the configuration where the DRx paths of the first and second SIMs are both connected to the second antenna, while the PRx path of the second SIM is connected to the Rx configuration of the third antenna.

[0116] Accordingly, as indicated by reference numerals 524-1 to 524-4, switching the antenna switch to enable Rx activity of the second SIM on an antenna connected to the Tx chain of the first SIM may cause damage or reliability issues to the power amplifier in the Tx chain. For example, before the switch is switched, the power amplifier is transmitting power to the circuitry terminated to the corresponding antenna. However, when the switch is switched to enable Rx activity of the second SIM while ongoing Tx activity of the first SIM is present, the power amplifier may begin transmitting power to an open-circuit (e.g., unterminated) circuitry, causing power to be reflected back to the power amplifier. This can generate standing waves at the power amplifier, which can lead to burnout or reliability issues at the power amplifier.

[0117] Some aspects described herein relate to techniques and apparatus for managing the reliability of power amplifiers in a multi-SIM UE with DR-DSDS capability to enable antenna switching concurrency between a first SIM operating in connected mode and a second SIM operating in idle mode. For example, in cases where the first and second SIMs are connected to the same antenna switch and the Tx activity of the first SIM at least partially overlaps with the Rx activity of the second SIM in the time domain, a modem controller managing the first and second SIMs can perform preventative actions to protect the power amplifiers in the Tx chain of the first SIM. For example, in some aspects, the protective action could be limiting the output power from the power amplifier to meet a threshold associated with the robustness or reliability of the power amplifier, stopping or suspending Tx activity associated with the first SIM, and / or rejecting Rx activity associated with the second SIM (e.g., thereby allowing Tx activity associated with the first SIM to continue). In this way, the modem controller can detect conditions that may potentially lead to damage or reliability problems of the power amplifiers and implement appropriate actions to protect them.

[0118] As indicated above, Figures 5A-5E This is provided as an example. Other examples may differ from the one provided. Figures 5A-5E The example described.

[0119] Figures 6A-6B This is a diagram illustrating an example 600 related to the reliability of a power amplifier managing multi-SIM antenna switching concurrency according to this disclosure. (See diagram for example.) Figures 6A-6B As shown, Example 600 includes a multi-SIM UE with a first SIM (SIM1) and a second SIM (SIM2) that supports DR-DSDS capability, where one SIM can concurrently perform Tx and Rx activities (e.g., in connected mode) with the second SIM, performing only Rx activities (e.g., in idle mode). Furthermore, as shown, the first and second SIMs share a radio frequency front-end (RFFE) comprising multiple antennas and multiple antenna switches or switching elements. For example, as described above, the Tx path associated with the SIM in connected mode can operate in a TDD device hopping mode, whereby the Tx path can switch between different antennas, and the Rx path to the antenna is in a default (e.g., static or fixed) configuration to minimize RFFE loss due to switching. Additionally, as shown, the multi-SIM UE includes a modem controller that controls the operation of one or more of the first and second SIMs.

[0120] like Figure 6AAs shown in Figures 610-1 and 610-2, the modem controller can receive activity registration information from the first SIM and the second SIM. For example, as described herein, the first SIM and the second SIM may be associated with the same wireless network, different wireless networks, the same network operator, or different network operators, etc. Accordingly, activities associated with the first SIM may be asynchronous in time with activities associated with the second SIM (e.g., where the first SIM and the second SIM are associated with different wireless networks or different network operators that are not synchronized with each other). Therefore, in some cases, Rx activities scheduled on the second SIM may overlap in time with Tx activities scheduled on the first SIM, and vice versa. Accordingly, in some aspects, the first SIM and the second SIM may register scheduled activities with the modem controller in advance so that the modem controller can detect potential conditions that could lead to damage or reliability problems of power amplifiers in the Tx chain of a SIM in connected mode.

[0121] Furthermore, in some aspects, registered activities may be associated with priority values ​​(e.g., based on the type of traffic or information to be conveyed). For example, in some aspects, the modem controller may use the priority value associated with registered Tx and / or Rx activities to make decisions about which preventative actions(s) to perform in a situation where the modem controller detects a condition that may lead to damage or reliability problems of the power amplifier(s) in the Tx chain of a SIM in connected mode. In some aspects, the first SIM and / or the second SIM may indicate priority values ​​when registering the corresponding activities associated with the first SIM and the second SIM. Additionally or alternatively, the first SIM and / or the second SIM may indicate the type of traffic or information to be conveyed, and the modem controller may determine the appropriate priority value based on the type of traffic or information to be conveyed.

[0122] like Figure 6AAs further illustrated by reference numeral 620 in the accompanying drawings, the modem controller can detect that the first SIM and the second SIM share an antenna switch when the first SIM is in connected mode and the second SIM is in idle mode. Accordingly, the first SIM can be allowed to perform Tx and Rx operations in connected mode, and the second SIM can be allowed to perform Rx operations concurrently only in idle mode. In the case where the modem controller detects that the first SIM and the second SIM are connected to the same antenna switch, the modem controller can determine that there is a potential situation in which Rx activity associated with the second SIM may interfere with Tx activity associated with the first SIM. If the antenna switch shared by the first SIM and the second SIM is switched so that the corresponding antenna is connected to the Rx path of the second SIM (e.g., PRx path or DRx path), the power amplifier in the Tx chain of the first SIM may transmit power to an open circuit, which may cause the transmitted power to be reflected back to the power amplifier and potentially cause damage or reliability problems to the power amplifier. Accordingly, when the first SIM is in connected mode and the second SIM is in idle mode, and the first SIM and the second SIM share an antenna switch, the modem controller can determine, based on the activity registration information received from the first SIM and the second SIM, whether the Tx activity associated with the first SIM overlaps with the Rx activity associated with the second SIM in the time domain.

[0123] like Figure 6A As further illustrated by reference numeral 630 in the accompanying drawings, in situations where the Tx activity associated with the first SIM and the Rx activity associated with the second SIM overlap in the time domain when the first SIM and the second SIM share an antenna switch, the modem controller may select a preventative action to protect the power amplifier associated with the first SIM. More specifically, as described above, if the shared antenna switch is switched to connect the corresponding antenna to the Rx path of the second SIM, a standing wave may be generated at the power amplifier associated with the first SIM. Accordingly, as described herein, Rx activity may include preparing and / or programming to place analog and / or digital RF components (e.g., RF transceivers, analog front-end devices, and / or antenna switches, etc.) in the appropriate settings or configurations to demodulate, decode, or otherwise process received signals. In other words, any activity including or involving switching the antenna switch to connect the corresponding antenna to the Rx path of the second SIM may result in an unterminated Tx path for the first SIM. Accordingly, when such a situation is detected (e.g., overlapping Tx and Rx activities for different SIMs sharing an antenna switch), the modem controller can select a preventative action to protect the power amplifier in the Tx path associated with the first SIM.

[0124] For example, such as Figure 6BAs shown by reference numeral 640-1 in the accompanying drawings, a preventative action could be to limit the maximum output power from a power amplifier in the Tx path associated with the first SIM, in which case the modem controller could transmit a control signal to the first SIM to limit the maximum output power. In some aspects, the maximum output power from the power amplifier could be limited to a value that satisfies a threshold associated with the robustness and / or reliability parameters of the power amplifier. For example, the power amplifier may be manufactured according to robustness and / or reliability specifications that define the maximum output power unlikely to cause permanent damage to the power amplifier under a given load and voltage standing wave ratio (VSWR) (e.g., the maximum dBm number the power amplifier can tolerate when transmitting to an open circuit). Accordingly, in the case where the preventative action is to limit the maximum output power from the power amplifier associated with the first SIM, the maximum output power may satisfy (e.g., be less than or equal to) a threshold based on the robustness and / or reliability specifications associated with that power amplifier.

[0125] Additionally or alternatively, in cases where one or more additional maximum Tx power limits apply to the first SIM, the modem controller may consider other maximum Tx power limits when determining the limit on the maximum output power from the power amplifier. For example, in some cases, the first SIM may be subject to a maximum permissible Tx power limit to protect the Rx low-noise amplifier (LNA) in the Rx path of the second SIM from damage due to exposure to high Tx power from the first SIM. Accordingly, in cases where multiple maximum power limits apply to the first SIM (at least one of which is based on the robustness or reliability specification of the power amplifier), the modem controller may determine the maximum permissible Tx power limit of the power amplifier as the minimum of all maximum permissible power limits applicable to the first SIM. For example, if the maximum permissible Tx power limit of the first SIM is X dBM to protect the Rx LNA of the second SIM from damage caused by exposure to high Tx power from the first SIM, and the maximum permissible Tx power limit of the first SIM is Y dBM to protect the Tx power amplifier of the first SIM from damage or reliability problems caused by interruption, disconnection, or other disturbance of the Tx activity associated with the first SIM due to the Rx activity associated with the second SIM, then the maximum permissible power limit of the Tx chain of the first SIM can be determined as min(X,Y).

[0126] In some aspects, the first SIM and the second SIM can continue to register upcoming scheduled activities with the modem controller, which allows the modem controller to determine whether and / or when the Tx activity of the first SIM and the Rx activity of the second SIM overlap in time. Furthermore, in some aspects, the modem controller may have the capability to detect the antennas(s) to which the first SIM and the second SIM are connected, or the first SIM and the second SIM may indicate the corresponding connected antennas to the modem controller. In this way, the modem controller may be able to determine whether the first SIM and the second SIM share an antenna switch or whether the first SIM and the second SIM are connected to different antenna switches. Accordingly, when the first SIM and the second SIM share an antenna switch and the Tx activity of the first SIM overlaps with the Rx activity of the second SIM in time, the modem controller may limit the maximum output power of the power amplifiers in the Tx chain of the first SIM. Furthermore, unless there are additional limitations on the maximum output power of the power amplifier, the modem controller may send a control signal to the first SIM to remove the limitation on the maximum output power when conditions that could lead to damage or reliability issues of the power amplifier in the Tx chain associated with the first SIM cease to be met (e.g., the first and second SIMs no longer share the antenna switch, the Rx activity of the second SIM has ended, and / or the Tx and Rx activities of the respective SIMs no longer occur concurrently).

[0127] Alternatively, as further illustrated by reference numeral 640-1, in cases where one or more Tx communications associated with the first SIM and one or more Rx communications associated with the second SIM at least partially overlap in time when the first SIM and the second SIM share an antenna switch, a preventative action could be to stop or suspend the Tx activity associated with the first SIM. In this case, the modem controller could transmit a control signal to the first SIM to instruct that the Tx activity of the first SIM be stopped or suspended. In some aspects, the first SIM and the second SIM could continue to register upcoming scheduled activities with the modem controller, which would enable the modem controller to determine whether and / or when the Tx activity of the first SIM and the Rx activity of the second SIM overlap in time. Furthermore, in some aspects, the modem controller could have the capability to detect the antenna(s) to which the first SIM and the second SIM are connected, or the first SIM and the second SIM could indicate the corresponding connected antenna to the modem controller. In this way, the modem controller could be able to determine whether the first SIM and the second SIM share an antenna switch or whether the first SIM and the second SIM are connected to different antenna switches. Accordingly, when the first SIM and the second SIM share an antenna switch and the Tx activity of the first SIM overlaps with the Rx activity of the second SIM in time, the modem controller may stop or suspend the Tx activity of the first SIM. Furthermore, when conditions that could lead to damage or reliability issues of the power amplifiers in the Tx chain associated with the first SIM cease to be met (e.g., the first and second SIMs no longer share an antenna switch, the Rx activity of the second SIM has ended, and / or the Tx and Rx activities of the respective SIMs no longer occur concurrently), the modem controller may send a control signal to the first SIM to resume Tx activity.

[0128] Alternatively, as indicated by reference numeral 640-2, in cases where Tx communications associated with the first SIM have a higher priority than Rx communications associated with the second SIM, a preventative action could be to deny Rx activities associated with the second SIM. For example, in some cases, Tx activities on the first SIM may include high-priority control information to be transmitted on the uplink (e.g., Media Access Control (MAC) uplink control signaling and / or Radio Resource Control (RRC) signaling on the Physical Uplink Control Channel (PUCCH), etc.). Additionally or alternatively, Tx activities on the first SIM may include high-priority traffic, such as emergency service-related traffic and / or real-time voice or video traffic associated with real-time protocols (e.g., real-time voice or video encoded packets transmitted by Real-Time Transport Protocol (RTP) / User Datagram Protocol (UDP) / Internet Protocol (IP) packet headers and / or Real-Time Transmission Control Protocol (RTCP) / UDP / IP packet headers). In some respects, the modem controller can therefore determine the appropriate priorities of Tx activities associated with the first SIM and Rx activities associated with the second SIM, and accordingly determine appropriate preventative actions.

[0129] For example, in a case where the Rx activity of the second SIM has a higher priority than the concurrent Tx activity of the first SIM, the preventative action could be to limit the maximum output power of the power amplifier in the Tx chain of the first SIM or to stop or suspend the Tx activity of the first SIM, as described above. Otherwise, in a case where the Tx activity of the first SIM has a higher priority than the Rx activity of the second SIM, the modem controller could send a control signal to the second SIM indicating that the Rx activity is rejected (e.g., disallowing the second SIM from switching the antenna switch shared with the first SIM), and could allow the concurrent Tx activity of the first SIM to continue. For example, in some aspects, the priorities of the first SIM and the second SIM can be expressed as integer values ​​within a range (e.g., from 1 to 10, from 1 to 5, or another suitable range), where a higher value indicates the highest priority. Accordingly, in an example based on a priority range of 1 to 10, where 10 has the highest priority, an Rx activity with priority 8 and a Tx activity with priority 5 could mean that the Rx activity has a higher priority, thus the modem controller can limit the maximum output power of the Tx power amplifier from the first SIM or stop or suspend the Tx activity of the first SIM. Alternatively, if the Rx activity has priority 5 and the Tx activity has priority 8, then the Tx activity has a higher priority, thus the modem controller can reject the Rx activity of the second SIM and allow the Tx activity of the first SIM to continue. Generally, as described above, the SIM can report the traffic priority to the modem controller when registering the corresponding Tx / Rx activity, or the SIM can report the traffic type to the modem controller and the modem controller can determine the corresponding priority based on the traffic type.

[0130] As indicated above, Figures 6A-6B This is provided as an example. Other examples may differ from the one provided. Figures 6A-6B The example described.

[0131] Figure 7 This is a diagram illustrating an example process 700 performed by a UE according to this disclosure. Example process 700 is an example in which a UE (e.g., UE 120) performs operations associated with the reliability of a power amplifier used to manage multi-SIM antenna switching concurrency.

[0132] like Figure 7 As shown, in some aspects, process 700 may include: detecting a first communication associated with a first SIM operating in connected mode, the first communication at least partially overlapping in the time domain with a second communication associated with a second SIM operating in idle mode (box 710). For example, the UE (e.g., using...) Figure 8The detection component 808 described herein can detect a first communication associated with a first SIM operating in connected mode, which overlaps at least partially in the time domain with a second communication associated with a second SIM operating in idle mode, as described above.

[0133] like Figure 7 As further shown, in some aspects, process 700 may include: detecting a positive shared antenna switch between the transmit chain associated with the first SIM and the receive chain associated with the second SIM (block 720). For example, the UE (e.g., using...) Figure 8 The detection component 808 described herein can detect that the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing an antenna switch, as described above.

[0134] like Figure 7 As further shown, in some aspects, process 700 may include: performing a preventative action (block 730) at least in part based on the time-domain overlap between a first communication associated with the first SIM and a second communication associated with the second SIM when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing an antenna switch. For example, the UE (e.g., using...) Figure 8 The control component 810 described herein can perform a preventative action, at least in part, based on the overlap in the time domain of the first communication associated with the first SIM and the second communication associated with the second SIM, when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing an antenna switch, as described above.

[0135] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0136] In a first aspect, the second communication associated with the second SIM includes activities for preparing or programming one or more components in the receiver chain associated with the second SIM to demodulate or decode the received signals.

[0137] In a second aspect, either alone or in combination with the first aspect, the preventative action is to limit the permissible output power from the transmit chain associated with the first SIM to the maximum value of a robustness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.

[0138] In the third aspect, either alone or in combination with one or more of the first and second aspects, the maximum permissible output power is the minimum of one or more additional limits on the permissible output power from the transmit chain associated with the first SIM, including the robustness or reliability parameter associated with the power amplifier and one additional limit on the permissible output power from the transmit chain associated with the first SIM.

[0139] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the preventive action is to stop or suspend the transmission activity associated with the first SIM when the first communication associated with the first SIM overlaps with the second communication associated with the second SIM in the time domain.

[0140] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 700 includes: resuming transmission activity associated with the first SIM by at least partially based on the time-domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM.

[0141] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the preventive action is to reject second communications associated with the second SIM that overlap in the time domain with the first communications associated with the first SIM.

[0142] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 700 includes: determining a first priority of a first communication associated with a first SIM and a second priority of a second communication associated with a second SIM; and selecting a preventive action based at least in part on the first priority and the second priority.

[0143] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the preventive action is at least in part based on the fact that the second communication associated with the second SIM has a higher priority than the first communication associated with the first SIM, thereby limiting the permissible output power from the transmit chain associated with the first SIM or stopping or suspending transmission activities associated with the first SIM.

[0144] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the preventive action is to reject, at least in part, a second communication associated with the second SIM that overlaps with the first communication associated with the first SIM in the time domain, based on the fact that the first communication associated with the first SIM has a higher priority than the second communication associated with the second SIM.

[0145] although Figure 7 An example box of process 700 is shown, but in some respects, process 700 may include... Figure 7 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 700 can be executed in parallel.

[0146] Figure 8This is a block diagram of an example device 800 for wireless communication. Device 800 may be a UE, or a UE may include device 800. In some aspects, device 800 includes a receiving component 802 and a transmitting component 804, which may be in communication with each other (e.g., via one or more buses and / or one or more other components). As shown, device 800 may use the receiving component 802 and the transmitting component 804 to communicate with another device 806 (such as a UE, a base station, or another wireless communication device). As further shown, device 800 may include one or more of a detection component 808 or a control component 810, etc.

[0147] In some respects, device 800 can be configured to perform the functions described herein. Figures 6A-6B The described one or more operations. Additionally or alternatively, the apparatus 800 may be configured to perform one or more processes described herein (such as...). Figure 7 Process 700). In some aspects, device 800 and / or Figure 8 One or more components shown may include the above combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 8 One or more components shown can be combined as described above. Figure 2 Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0148] Receiver 802 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 806. Receiver 802 may provide the received communications to one or more other components of device 800. In some aspects, receiver 802 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) and may provide the processed signal to one or more other components of device 806. In some aspects, receiver 802 may include combinations of the above. Figure 2 The described UE includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0149] The transmission component 804 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to the device 806. In some aspects, one or more other components of the device 806 can generate communications and provide the generated communications to the transmission component 804 for transmission to the device 806. In some aspects, the transmission component 804 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and can transmit the processed signals to the device 806. In some aspects, the transmission component 804 can include combinations of the above. Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof. In some aspects, the transmit component 804 may be co-located with the receive component 802 in a transceiver.

[0150] Detection component 808 can detect a first communication associated with a first SIM operating in connected mode, which at least partially overlaps in the time domain with a second communication associated with a second SIM operating in idle mode. Detection component 808 can detect a positive shared antenna switch between the transmit chain associated with the first SIM and the receive chain associated with the second SIM. Control component 810 can perform a preventative action at least in part based on the time domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are positively sharing an antenna switch.

[0151] The control component 810 can resume transmission activity associated with the first SIM by at least partially based on the first communication associated with the first SIM stopping the overlap in the time domain with the second communication associated with the second SIM.

[0152] Control component 810 can determine a first priority of a first communication associated with a first SIM and a second priority of a second communication associated with a second SIM. Control component 810 can select a preventative action based at least in part on the first priority and the second priority.

[0153] Figure 8 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 8 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 8 The two or more components shown can be implemented within a single component, or Figure 8 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 8 The collection of components shown (e.g., one or more components) can be executed as described by Figure 8The other set of components shown in the diagram performs one or more functions.

[0154] The following provides an overview of some aspects of this disclosure:

[0155] Aspect 1: A wireless communication method performed by a UE, comprising: detecting a first communication associated with a first SIM operating in a connected mode, the first communication at least partially overlapping in the time domain with a second communication associated with a second SIM operating in an idle mode; detecting that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and performing a preventive action at least partially based on the time domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.

[0156] Aspect 2: The method of Aspect 1, wherein the second communication associated with the second SIM includes activities for preparing or programming one or more components in the receiver chain associated with the second SIM to demodulate or decode the received signal.

[0157] Aspect 3: The method of any of Aspects 1-2, wherein the preventive action is to limit the permissible output power from the transmit chain associated with the first SIM to the maximum value of a robustness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.

[0158] Aspect 4: The method of aspect 3, wherein the maximum value of the allowable output power is the minimum of the robustness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.

[0159] Aspect 5: The method of any of Aspects 1-2, wherein the preventive action is to stop or suspend the transmission activity associated with the first SIM when the first communication associated with the first SIM overlaps with the second communication associated with the second SIM in the time domain.

[0160] Aspect 6: The method of aspect 5 further includes: resuming the transmission activity associated with the first SIM at least in part based on the time domain overlap between the first communication associated with the first SIM and the second communication associated with the second SIM.

[0161] Aspect 7: The method of any of Aspects 1-2, wherein the preventive action is to reject the second communication associated with the second SIM that overlaps in the time domain with the first communication associated with the first SIM.

[0162] Aspect 8: The method of any of Aspects 1-7 further includes: determining a first priority of the first communication associated with the first SIM and a second priority of the second communication associated with the second SIM; and selecting a preventive action based at least in part on the first priority and the second priority.

[0163] Aspect 9: The method of aspect 8, wherein the preventive action is based at least in part on the fact that the second communication associated with the second SIM has a higher priority than the first communication associated with the first SIM, thereby limiting the permissible output power from the transmit chain associated with the first SIM or stopping or suspending transmission activities associated with the first SIM.

[0164] Aspect 10: The method of aspect 8, wherein the preventive action is based at least in part on the fact that the first communication associated with the first SIM has a higher priority than the second communication associated with the second SIM, and thus rejects the second communication associated with the second SIM that overlaps with the first communication associated with the first SIM in the time domain.

[0165] Aspect 11: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in any of Aspects 1-10.

[0166] Aspect 12: An apparatus for wireless communication, comprising: a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform a method as described in any of Aspects 1-10.

[0167] Aspect 13: A device for wireless communication, comprising at least one means for performing a method as described in any of Aspects 1-10.

[0168] Aspect 14: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in any of Aspects 1-10.

[0169] Aspect 15: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform a method as described in any of Aspects 1-10.

[0170] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure or may be obtained through practice.

[0171] As used herein, the term "component" is intended to be broadly interpreted as hardware and / or a combination of hardware and software. "Software" should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms. As used herein, processors are implemented using hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limited in any way. Thus, the operation and behavior of these systems and / or methods are described herein without reference to any specific software code—it is understood that software and hardware can be designed to implement these systems and / or methods, at least in part, based on the descriptions herein.

[0172] As used in this article, depending on the context, a threshold can refer to a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0173] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of aspects. In fact, many of these features can be combined in ways not specifically described in the claims and / or not disclosed in the specification. Although each dependent claim listed below may be directly subordinated to only one claim, the disclosure of aspects includes each dependent claim being combined with each other claim in this set of claims. As used herein, the phrase “at least one of” refers to any combination of these items, including single members. As an example, “at least one of a, b, or c” is intended to cover: 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 ordering of a, b, and c).

[0174] The elements, actions, or instructions used herein should not be construed as critical or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “a certain” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the article “the” is intended to include one or more items referenced in conjunction with the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and may be used interchangeably with “one or more.” Where only one item is intended, the phrase “only one” or similar language is used. Moreover, as used herein, the terms “have,” “contain,” “include,” etc., are intended to be open-ended terms. Additionally, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Moreover, as used herein, the term “or” is intended to be inclusive when used in a sequence and may be used interchangeably with “and / or” unless otherwise explicitly stated (e.g., in combination with “either of” or “only one of”).

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: detecting a first communication associated with a first subscriber identity module (SIM) operating in a connected mode, the first communication at least partially overlapping in a time domain with a second communication associated with a second SIM operating in an idle mode; detecting that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and performing a preventive action associated with a power amplifier in the transmit chain associated with the first SIM, wherein performing the preventive action comprises limiting an allowable output power from the transmit chain associated with the first SIM to a maximum value, performing the preventive action is based at least in part on the first communication associated with the first SIM overlapping in a time domain with the second communication associated with the second SIM while the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.

2. The method of claim 1, wherein, the second communication associated with the second SIM comprises an activity to prepare or program one or more components in the receive chain associated with the second SIM to demodulate or decode a received signal.

3. The method of claim 1, wherein, the maximum value satisfies a robustness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.

4. The method of claim 3, wherein, the maximum value of the allowable output power is a minimum of the robustness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.

5. The method of claim 1, wherein, the preventive action is stopping or suspending transmission activity associated with the first SIM while the first communication associated with the first SIM overlaps in a time domain with the second communication associated with the second SIM.

6. The method of claim 5, further comprising: resuming the transmission activity associated with the first SIM based at least in part on the first communication associated with the first SIM ceasing to overlap in a time domain with the second communication associated with the second SIM.

7. The method of claim 1, wherein, the preventive action is rejecting the second communication associated with the second SIM that overlaps in a time domain with the first communication associated with the first SIM.

8. The method of claim 1, further comprising: determining a first priority of the first communication associated with the first SIM and a second priority of the second communication associated with the second SIM; and selecting the preventive action based at least in part on the first priority and the second priority.

9. The method of claim 8, wherein, the preventive action is stopping or suspending transmission activity associated with the first SIM based at least in part on the second communication associated with the second SIM having a higher priority than the first communication associated with the first SIM.

10. The method of claim 8, wherein, The preventative action is rejecting the second communication associated with the second SIM that overlaps in time domain with the first communication associated with the first SIM based at least in part on the first communication associated with the first SIM having a higher priority than the second communication associated with the second SIM.

11. A user equipment (UE) for wireless communication, comprising: memory; and one or more processors coupled to the memory, the one or more processors configured to: detect a first communication associated with a first subscriber identity module (SIM) operating in a connected mode, the first communication at least partially overlapping in time domain with a second communication associated with a second SIM operating in an idle mode; detect that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and perform a preventative action associated with a power amplifier in the transmit chain associated with the first SIM, wherein to perform the preventative action, the one or more processors are configured to limit an allowable output power from the transmit chain associated with the first SIM to a maximum value, the preventative action being performed based at least in part on the first communication associated with the first SIM overlapping in time domain with the second communication associated with the second SIM while the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.

12. The UE of claim 11, wherein, the second communication associated with the second SIM includes an activity to prepare or program one or more components in the receive chain associated with the second SIM to demodulate or decode a received signal.

13. The UE of claim 11, wherein, the maximum value satisfies a ruggedness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.

14. The UE of claim 13, wherein, the maximum value of the allowable output power is a minimum of the ruggedness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.

15. The UE of claim 11, wherein, the preventative action is stopping or suspending transmission activity associated with the first SIM while the first communication associated with the first SIM overlaps in time domain with the second communication associated with the second SIM.

16. The UE of claim 15, wherein, the one or more processors are further configured to: resume the transmission activity associated with the first SIM based at least in part on the first communication associated with the first SIM ceasing to overlap in time domain with the second communication associated with the second SIM.

17. The UE of claim 11, wherein, the preventative action is rejecting the second communication associated with the second SIM that overlaps in time domain with the first communication associated with the first SIM.

18. The UE of claim 11, wherein, the one or more processors are further configured to: determine a first priority of the first communication associated with the first SIM and a second priority of the second communication associated with the second SIM; and selecting the preventative action based at least in part on the first priority and the second priority.

19. The UE of claim 18, wherein, the preventative action is stopping or suspending transmission activity associated with the first SIM based at least in part on the second communication associated with the second SIM having a higher priority than the first communication associated with the first SIM.

20. The UE of claim 18, wherein, the preventative action is rejecting the second communication associated with the second SIM that overlaps in time domain with the first communication associated with the first SIM based at least in part on the first communication associated with the first SIM having a higher priority than the second communication associated with the second SIM.

21. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising: one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: detect a first communication associated with a first subscriber identity module (SIM) operating in a connected mode, the first communication at least partially overlapping in time domain with a second communication associated with a second SIM operating in an idle mode; detect that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and perform a preventative action associated with a power amplifier in the transmit chain associated with the first SIM, where to perform the preventative action, the one or more instructions cause the UE to limit allowable output power from the transmit chain associated with the first SIM to a maximum value, the performing the preventative action based at least in part on the first communication associated with the first SIM overlapping in time domain with the second communication associated with the second SIM while the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.

22. The non-transitory computer-readable medium of claim 21, wherein the maximum value satisfies a ruggedness or reliability parameter associated with the power amplifier in the transmit chain associated with the first SIM.

23. The non-transitory computer-readable medium of claim 21, wherein, the one or more instructions further cause the UE to stop or suspend transmission activity associated with the first SIM while the first communication associated with the first SIM overlaps in time domain with the second communication associated with the second SIM.

24. The non-transitory computer-readable medium of claim 21, wherein, the one or more instructions further cause the UE to reject the second communication associated with the second SIM that overlaps in time domain with the first communication associated with the first SIM.

25. The non-transitory computer-readable medium of claim 21, wherein, the one or more instructions further cause the UE to: determine a first priority of the first communication associated with the first SIM and a second priority of the second communication associated with the second SIM; and select the preventative action based at least in part on the first priority and the second priority.

26. An apparatus for wireless communication, comprising: Apparatus for detecting a first communication associated with a first subscriber identity module (SIM) operating in a connected mode, the first communication at least partially overlapping in time domain with a second communication associated with a second SIM operating in an idle mode; Apparatus for detecting that a transmit chain associated with the first SIM and a receive chain associated with the second SIM are sharing an antenna switch; and Apparatus for performing a preventive action associated with a power amplifier in a transmit chain associated with the first SIM, wherein the apparatus for performing the preventive action comprises apparatus for limiting an allowable output power from the transmit chain associated with the first SIM to a maximum value, the performing of the preventive action based at least in part on the first communication associated with the first SIM overlapping in time domain with the second communication associated with the second SIM when the transmit chain associated with the first SIM and the receive chain associated with the second SIM are sharing the antenna switch.

27. The apparatus of claim 26, wherein, The second communication associated with the second SIM comprises an activity for preparing or programming one or more components in a receive chain associated with the second SIM to demodulate or decode a received signal.

28. The apparatus of claim 26, wherein the maximum value satisfies a ruggedness or reliability parameter associated with the power amplifier in a transmit chain associated with the first SIM.

29. The apparatus of claim 28, wherein, The maximum value of the allowable output power is a minimum of the ruggedness or reliability parameter associated with the power amplifier and one or more additional limits on the allowable output power from the transmit chain associated with the first SIM.

30. The apparatus of claim 26, further comprising: Apparatus for stopping or suspending transmission activity associated with the first SIM when the first communication associated with the first SIM overlaps in time domain with the second communication associated with the second SIM.

31. The apparatus of claim 30, further comprising: Apparatus for resuming the transmission activity associated with the first SIM based at least in part on the first communication associated with the first SIM stopping overlapping in time domain with the second communication associated with the second SIM.

32. The apparatus of claim 26, further comprising: Apparatus for rejecting the second communication associated with the second SIM overlapping in time domain with the first communication associated with the first SIM.

33. The apparatus of claim 26, further comprising: Apparatus for determining a first priority of the first communication associated with the first SIM and a second priority of the second communication associated with the second SIM; and Apparatus for selecting the preventive action based at least in part on the first priority and the second priority.

34. The apparatus of claim 33, further comprising apparatus for stopping or suspending transmission activity associated with the first SIM based at least in part on the second communication associated with the second SIM having a higher priority than the first communication associated with the first SIM.

35. The apparatus of claim 33, further comprising means for rejecting the second communication associated with the second SIM that overlaps in time domain with the first communication associated with the first SIM based at least in part on the first communication associated with the first SIM having a higher priority than the second communication associated with the second SIM.

Images