Techniques for Discontinuous Reception Conflict Resolution for Multi-SIM User Equipment

Abstract

In a device having two SIMs (305a, 305b), the overlapping DRX of two connections is reduced by switching one of the two SIMs to an adjacent cell that meets a quality threshold.

Description

[0001] Cross - Reference to Related Applications

[0002] This patent application claims priority to Indian Patent Application No. 202041039078, filed on September 10, 2020, entitled "TECHNIQUES FOR DISCONTINUOUS RECEPTION COLLISION RESOLUTION FOR MULTI - SIM USER EQUIPMENT", and the above - mentioned application is assigned to the assignee of this application. The disclosure of the prior application is considered to be a part of this patent application and is incorporated herein by reference. Technical Field

[0003] Broadly speaking, aspects of the present disclosure relate to wireless communication, and aspects of the present disclosure relate to techniques and apparatus for discontinuous reception collision resolution for multi - subscriber identity module (SIM) user equipment (UE). Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. A typical wireless communication system may employ multiple access techniques capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access techniques 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 / Advanced LTE is an enhanced set of the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include multiple base stations (BSs) capable of supporting communication for multiple user equipments (UEs). A user equipment (UE) may communicate with a base station (BS) via a downlink and an uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit - receive point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0006] The above multi-access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipments to communicate at the urban, national, regional, and even global levels. New Radio (NR) (which may also be referred to as 5G) is an enhanced set of the LTE mobile standard released by the 3rd Generation Partnership Project (3GPP). NR is designed to better integrate with other open standards by improving spectral efficiency, reducing costs, enhancing services, leveraging new spectrums, and using Orthogonal Frequency Division Multiplexing with Cyclic Prefix (CP-OFDM) on the downlink (DL), and CP-OFDM and / or SC-FDM (e.g., also referred to as Discrete Fourier Transform Spread OFDM (DFT-s-OFDM)) on the uplink (UL), so as to better support mobile broadband Internet access, as well as support beamforming, Multiple-Input Multiple-Output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR, and other wireless access technologies remain useful. Summary of the Invention

[0007] In some aspects, a method of wireless communication performed by a User Equipment (UE) includes: determining that a first Discontinuous Reception (DRX) cycle associated with a first Subscriber Identity Module (SIM) of the UE overlaps with a second DRX cycle associated with a second SIM of the UE; determining whether the quality of an adjacent cell meets a threshold at least partially based on the determination that the first DRX cycle overlaps with the second DRX cycle; and transmitting a measurement report at least partially based on the determination that the quality of the adjacent cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the adjacent cell.

[0008] In some aspects, the method includes: skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least partially based on the quality of the adjacent cell failing to meet the threshold.

[0009] In some aspects, the method includes: skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least partially based on the handover failure.

[0010] In some aspects, the method includes: determining that the handover has failed at least partially based on determining that no handover command has been received within a threshold time period.

[0011] In some aspects, the method includes: performing the handover of the at least one SIM to the neighboring cell, wherein the neighboring cell is associated with a third DRX cycle for the at least one SIM.

[0012] In some aspects, the method includes: determining that the third DRX cycle overlaps with the DRX cycle of the SIM among the first SIM and the second SIM; and skipping one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM, at least in part based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

[0013] In some aspects, the method includes: selecting the at least one SIM associated with the measurement report, at least in part based on a pending data session or a pending signaling session associated with the at least one SIM.

[0014] In some aspects, the at least one SIM is pre-configured to be associated with the measurement report.

[0015] In some aspects, a UE for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: determine that a first DRX cycle associated with a first SIM of the UE overlaps with a second DRX cycle associated with a second SIM of the UE; determine whether the quality of a neighboring cell meets a threshold, at least in part based on the determination that the first DRX cycle overlaps with the second DRX cycle; and send a measurement report, at least in part based on the determination that the quality of the neighboring cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the neighboring cell.

[0016] In some aspects, the one or more processors are further configured to: skip one or more active times associated with one or more of the first DRX cycle or the second DRX cycle, at least in part based on the quality of the neighboring cell failing to meet the threshold.

[0017] In some aspects, the one or more processors are further configured to: skip one or more active times associated with one or more of the first DRX cycle or the second DRX cycle, at least in part based on the handover failure.

[0018] In some aspects, the one or more processors are further configured to: determine that the handover has failed, at least in part based on determining that no handover command has been received within a threshold time period.

[0019] In some aspects, the one or more processors are further configured to: perform the handover of the at least one SIM to the neighboring cell, wherein the neighboring cell is associated with a third DRX cycle for the at least one SIM.

[0020] In some aspects, the one or more processors are further configured to: determine that the third DRX cycle overlaps with the DRX cycles of the SIMs in the first SIM and the second SIM; and skip one or more active times associated with one or more of the third DRX cycle or the DRX cycles of the SIMs at least in part based on the overlap between the third DRX cycle and the DRX cycles of the SIMs.

[0021] In some aspects, the one or more processors are further configured to: select the at least one SIM associated with the measurement report at least in part based on a pending data session or a pending signaling session associated with the at least one SIM.

[0022] In some aspects, the at least one SIM is pre-configured to be associated with the measurement report.

[0023] In some aspects, a non-transitory computer-readable medium storing an instruction set for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: determine that a first DRX cycle associated with a first SIM of the UE overlaps with a second DRX cycle associated with a second SIM of the UE; determine whether the quality of a neighboring cell meets a threshold at least in part based on the determination that the first DRX cycle overlaps with the second DRX cycle; and send a measurement report at least in part based on the determination that the quality of the neighboring cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the neighboring cell.

[0024] In some aspects, the one or more instructions further cause the UE to: skip one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least in part based on the quality of the neighboring cell failing to meet the threshold.

[0025] In some aspects, the one or more instructions further cause the UE to: skip one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least in part based on the handover failure.

[0026] In some aspects, the one or more instructions further cause the UE to perform the following operations: determine that the handover has failed at least in part based on determining that no handover command has been received within a threshold time period.

[0027] In some aspects, the one or more instructions further cause the UE to perform the following operations: perform the handover of the at least one SIM to the neighboring cell, where the neighboring cell is associated with a third DRX cycle for the at least one SIM.

[0028] In some aspects, the one or more instructions further cause the UE to perform the following operations: determine that the third DRX cycle overlaps with the DRX cycle of the SIM in the first SIM and the second SIM; and skip one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM at least in part based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

[0029] In some aspects, the one or more instructions further cause the UE to perform the following operations: select the at least one SIM associated with the measurement report at least in part based on a pending data session or a pending signaling session associated with the at least one SIM.

[0030] In some aspects, the at least one SIM is preconfigured to be associated with the measurement report.

[0031] In some aspects, a device for wireless communication includes: a unit for determining that a first DRX cycle associated with a first SIM of the UE overlaps with a second DRX cycle associated with a second SIM of the UE; a unit for determining whether the quality of a neighboring cell meets a threshold at least in part based on the determination that the first DRX cycle overlaps with the second DRX cycle; and a unit for sending a measurement report at least in part based on the determination that the quality of the neighboring cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the neighboring cell.

[0032] In some aspects, the device includes: a unit for skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least in part based on the quality of the neighboring cell failing to meet the threshold.

[0033] In some aspects, the apparatus includes units for skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least partially based on the handover failure.

[0034] In some aspects, the apparatus includes units for determining that the handover has failed at least partially based on determining that no handover command has been received within a threshold time period.

[0035] In some aspects, the apparatus includes units for performing the handover of the at least one SIM to the neighboring cell, where the neighboring cell is associated with a third DRX cycle for the at least one SIM.

[0036] In some aspects, the apparatus includes units for determining that the third DRX cycle overlaps with the DRX cycle of the SIM among the first SIM and the second SIM; and units for skipping one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM at least partially based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

[0037] In some aspects, the apparatus includes units for selecting the at least one SIM associated with the measurement report at least partially based on a pending data session or a pending signaling session associated with the at least one SIM.

[0038] In some aspects, the at least one SIM is preconfigured to be associated with the measurement report.

[0039] Broadly speaking, aspects include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as fully described herein with reference to the drawings and the specification and as illustrated by the drawings and the specification.

[0040] The features and technical advantages of examples in accordance with the present disclosure have been outlined rather broadly above so that the detailed description that follows may be better understood. Additional features and advantages will be described hereinafter. The disclosed concepts and specific examples can be readily used as a basis for modifying or designing other structures for achieving the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood when considered in conjunction with the following description and the accompanying drawings. Each of the drawings in the accompanying drawings is provided for purposes of illustration and description and is not a definition of the limitations of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] A more specific description of the inventive concepts briefly outlined above may be obtained by reference to some of the aspects shown in the accompanying drawings, so that the above features of the present disclosure may be understood in detail. It should be noted, however, that the drawings only show some typical aspects of the present disclosure and are therefore not considered to limit the scope of the present disclosure, as the description may admit other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0042] Figure 1 FIG. [FIG NUMBER] is a diagram illustrating an example of a wireless network in accordance with various aspects of the present disclosure.

[0043] Figure 2 FIG. [FIG NUMBER] is a diagram illustrating an example of a base station communicating with a UE in a wireless network in accordance with various aspects of the present disclosure.

[0044] Figure 3 FIG. [FIG NUMBER] is a diagram illustrating an example of a multi-subscriber identity module (multi-SIM) UE in accordance with various aspects of the present disclosure.

[0045] Figure 4 FIG. [FIG NUMBER] is a diagram illustrating an example of a discontinuous reception (DRX) configuration in accordance with various aspects of the present disclosure.

[0046] Figures 5 - 6 FIG. [FIG NUMBER] is a diagram illustrating an example of resolving a connected-mode DRX cycle conflict based at least in part on a triggered handover in accordance with various aspects of the present disclosure.

[0047] Figure 7 FIG. [FIG NUMBER] is a diagram illustrating an example process associated with discontinuous reception conflict resolution for a multi-SIM UE in accordance with various aspects of the present disclosure.

[0048] Figures 8 - 9 FIG. [FIG NUMBER] is a block diagram of an example apparatus for wireless communication in accordance with various aspects of the present disclosure. DETAILED DESCRIPTION

[0049] Please note that the "[[FIG NUMBER]]" in the translation above is a placeholder. You need to replace it with the actual figure number according to the specific content.Aspects of the present disclosure are more fully described below with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout the present disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art should appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of any other aspect of the present disclosure or in combination with any other aspect. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the present disclosure is intended to cover such apparatus or methods practiced using other structures, functions, or a combination of structures and functions in addition to or different from the aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein may be embodied by one or more elements of a claim.

[0050] Certain aspects of a telecommunications system will now be presented with reference to various apparatuses and techniques. These apparatuses and techniques will be described in the following detailed description through various boxes, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"), and will be illustrated in the accompanying drawings. These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.

[0051] It should be noted that although terms commonly associated with 5G or NR radio access technology (RAT) may be used herein to describe aspects, aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or post-5G RAT (e.g., 6G).

[0052] Figure 1FIG. is a diagram illustrating an example of a wireless network 100 in accordance with various aspects of the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network, an LTE network, etc. The wireless network 100 may include a plurality of base stations 110 (shown as BS 110a, 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, a Node B, a gNB, a 5G Node B (NB), an access point, a transmit receive point (TRP), etc. Each BS may provide communication coverage for a particular 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.

[0053] The BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., with a radius of several kilometers) and may allow unrestricted access by UEs having a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs having a service subscription. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). The BS for a macro cell may be referred to as a macro BS. The BS for a pico cell may be referred to as a pico BS. The BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 the example shown, BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. The BS may support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” may be used interchangeably herein.

[0054] In some aspects, a cell may not necessarily be stationary, and the geographic area of a cell may move according to the location of a mobile BS. In some aspects, any suitable transport network may be used to interconnect the BSs with each other and / or with 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, virtual networks, etc.

[0055] The wireless network 100 may also include relay stations. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send the data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE capable of relaying transmissions for other UEs. In Figure 1 In the example shown in, the relay BS 110d may communicate with the macro BS 110a and the UE 120d to facilitate communication between the BS 110a and the UE 120d. The relay BS may also be referred to as a relay station, a relay base station, a repeater, etc.

[0056] The wireless network 100 may be a heterogeneous network including different types of 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 impacts on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (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).

[0057] The network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other via a wireless or wired backhaul (e.g., directly or indirectly).

[0058] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, etc. A UE may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, a superbook, a medical device or apparatus, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), an entertainment device (e.g., a music or video device, or a satellite radio unit, etc.), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0059] Some UEs can be considered as Machine Type Communication (MTC) or evolved or enhanced Machine Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node can provide a connection to or from a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link, for example. Some UEs can be considered as Internet of Things (IoT) devices, and / or can be implemented as NarrowBand IoT (NB-IoT) devices. Some UEs can be considered as Customer Premises Equipment (CPE). UE 120 can be included inside a housing that houses components of UE 120, such as a processor component, a memory component, etc. In some aspects, the processor component and the memory component can be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., a memory) can be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, etc.

[0060] 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. The RAT can also be referred to as a radio technology, an air interface, etc. The frequency can also be referred to as a carrier, a channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks of different RATs. In some cases, an NR or 5G RAT network can be deployed.

[0061] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (e.g., without using the base station 110 as an intermediary for communicating with each other). For example, UEs 120 can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which can include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), a mesh network, etc. In such cases, UEs 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.

[0062] Devices of the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, devices of the wireless network 100 can communicate using an operating frequency band having a first frequency range (FR1) that can span from 410 MHz to 7.125 GHz, and / or can communicate using an operating frequency band having a second frequency range (FR2) that can span from 24.25 GHz to 52.6 GHz. The frequency between FR1 and FR2 is sometimes referred to as the intermediate frequency. Although a part of FR1 is greater than 6 GHz, FR1 is generally referred to as the "sub-6 GHz" band. Similarly, FR2 is generally referred to as the "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU). Thus, unless otherwise explicitly stated, it should be understood that terms such as "sub-6 GHz" (if used herein) can broadly represent frequencies less than 6 GHz, frequencies within FR1, and / or the intermediate frequency (e.g., greater than 7.125 GHz). Similarly, unless otherwise explicitly stated, it should be understood that terms such as "millimeter wave" (if used herein) can broadly represent frequencies within the EHF band, frequencies within FR2, and / or the intermediate frequency (e.g., less than 24.25 GHz). It is expected that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein apply to those modified frequency ranges.

[0063] As noted above, Figure 1 is provided as an example. Other examples may be different from those Figure 1 described herein.

[0064] Figure 2 is a diagram illustrating an example of a base station 110 communicating with a UE 120 in a wireless network 100 in accordance with various aspects of the present disclosure. The base station 110 can be equipped with T antennas 234a through 234t, and the UE 120 can be equipped with R antennas 252a through 252r, where generally, T ≥ 1 and R ≥ 1.

[0065] At base station 110, a transmit processor 220 may receive data for one or more UEs from a data source 212, select one or more modulation and coding schemes (MCSs) for the UE at least in part based on channel quality indicators (CQIs) received from each UE, process (e.g., encode and modulate) the data for the UE at least in part based on the MCSs selected for each UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRSs), demodulation reference signals (DMRSs), etc.) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, control symbols, overhead symbols, and / or reference symbols (if applicable) and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process the corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may 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 through 232t may be transmitted via T antennas 234a through 234t, respectively.

[0066] At the UE 120, antennas 252a through 252r may receive downlink signals from the base station 110 and / or other base stations and may provide the received signals to demodulators (DEMOD) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, down-convert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. The MIMO detector 256 may obtain the received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide the decoded data for the UE 120 to the data sink 260, and provide the decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine, for example, reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), and / or channel quality indicator (CQI). In some aspects, one or more components of the UE 120 may be included in a housing 284.

[0067] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0068] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reporting including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded (if applicable) by the TX MIMO processor 266, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 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.

[0069] At base station 110, uplink signals from UE 120 and other UEs may be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information transmitted by UE 120. Receive processor 238 may 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 communication. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antenna 234, modulator and / or demodulator 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 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.

[0070] Controller / processor 240 of base station 110, controller / processor 280 of UE 120, and / or Figure 2 any other component in may perform one or more techniques associated with discontinuous reception conflict resolution for a multi-subscriber identity module (multi-SIM) user equipment (UE), as described in more detail elsewhere herein. For example, controller / processor 240 of base station 110, controller / processor 280 of UE 120, and / or Figure 2 any other component in may perform or direct the operation of, for example, Figure 7 process 700 and / or other processes as described herein. Memories 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 non-transitory computer-readable media storing one or more instructions for wireless communication. For example, when the one or more instructions are executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, conversion, interpretation, etc.), the one or more processors, UE 120, and / or base station 110 may perform or direct the operation of, for example, Figure 7 process 700 and / or other processes as described herein. In some aspects, executing the instructions may include running the instructions, converting the instructions, compiling the instructions, interpreting the instructions, etc.

[0071] In some aspects, the UE 120 includes: a unit for determining that a first DRX cycle associated with a first SIM of the UE overlaps with a second DRX cycle associated with a second SIM of the UE; a unit for determining whether the quality of an adjacent cell meets a threshold at least partially based on the determination of the overlap between the first DRX cycle and the second DRX cycle; and / or a unit for transmitting a measurement report at least partially based on the determination that the quality of the adjacent cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the adjacent cell. The units for the UE 120 to perform the operations described herein may include, for example, antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, and / or memory 282.

[0072] In some aspects, the UE includes: a unit for skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least partially based on the quality of the adjacent cell failing to meet the threshold.

[0073] In some aspects, the UE includes: a unit for skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least partially based on a handover failure.

[0074] In some aspects, the UE includes: a unit for determining that a handover has failed at least partially based on determining that no handover command has been received within a threshold time period.

[0075] In some aspects, the UE includes: a unit for performing a handover of at least one SIM to an adjacent cell, wherein the adjacent cell is associated with a third DRX cycle for the at least one SIM.

[0076] In some aspects, the UE includes: a unit for determining that the third DRX cycle overlaps with the DRX cycle of the SIM among the first SIM and the second SIM; and / or a unit for skipping one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM at least partially based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

[0077] In some aspects, the UE includes: a unit for selecting at least one SIM associated with a measurement report at least partially based on a pending data session or a pending signaling session associated with the at least one SIM.

[0078] As noted above, Figure 2 is provided as an example. Other examples may be different from those regarding Figure 2The example described.

[0079] Figure 3 FIG. 300 is a diagram illustrating an example of a multi-SIM (multiple SIM) UE in accordance with various aspects of the present disclosure. As Figure 3 shown, the UE 120 may be a multi-SIM UE that includes multiple SIMs (two or more SIMs) (shown as a first SIM 305a and a second SIM 305b). The first SIM 305a may be associated with a first subscription (shown as SUB 1), and the second SIM 305b may be associated with a second subscription (shown as SUB 2). A subscription may include a subscription with a network operator (e.g., a mobile network operator (MNO)) that enables the UE 120 to access a wireless network (e.g., a radio access network (RAN)) associated with the network operator.

[0080] The SIM 305 may be a removable SIM (e.g., a SIM card) or an embedded SIM, etc. The SIM 305 may include an integrated circuit that securely stores an international mobile subscriber identity (IMSI) and a security key, which are used to identify and authenticate the corresponding subscription associated with the SIM 305. In some cases, the SIM 305 may store a list of services that the UE 120 is authorized to use to access using the subscription associated with the SIM 305, such as data services or voice services, etc.

[0081] As Figure 3 further shown, the UE 120 may communicate with a first base station 310a via a first cell 315a (shown as cell 1) using the first SIM 305a (e.g., in a connected mode, an idle mode, or an inactive mode). In this case, the first subscription (SUB 1) of the UE 120 may be used to access the first cell 315a (e.g., using the first IMSI for UE identification, using the first security key for UE authentication, using a first service list that allows the UE 120 to access using the first subscription, or by counting data or voice usage on the first cell for the first subscription, etc.). Similarly, the UE 120 may communicate with a second base station 310b via a second cell 315b (shown as cell 2) using the second SIM 305b (e.g., in a connected mode, an idle mode, or an inactive mode). In this case, the second subscription (SUB 2) of the UE 120 may be used to access the second cell 315b (e.g., using the second IMSI for UE identification, using the second security key for UE authentication, using a second service list that allows the UE 120 to access using the second subscription, or by counting data or voice usage on the second cell for the second subscription, etc.).

[0082] The first base station 310a and / or the second base station 310b may include one or more of the base stations 110 described above in connection with Figure 1 Although the first cell 315a and the second cell 315b are shown as being provided by different base stations, in some aspects, the first cell 315a and the second cell 315b may be provided by the same base station. Thus, in some aspects, the first base station 310a and the second base station 310b may be integrated into a single base station.

[0083] In some cases, the UE 120 may be a single receiver (SR) (sometimes also referred to as a single radio unit) 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. The multi-SIM UE may be capable of switching between two separate mobile network services, may include hardware for maintaining multiple connections (e.g., one connection per SIM) in a standby state, or may include hardware for simultaneously maintaining multiple network connections (e.g., multiple transceivers), etc. However, an SR-DSDS UE or an SR-MSMS UE may be able to receive data on only one connection at a time because radio frequency resources are shared among multiple subscriptions. For example, an SR-DSDS UE or an SR-MSMS UE may be associated with multiple subscriptions, but may include only a single transceiver shared by multiple subscriptions, a single transmit chain shared by multiple subscriptions, or a single receive chain shared by multiple subscriptions, etc.

[0084] As noted above, Figure 3 is provided as an example. Other examples may be different from the example described with respect to Figure 3

[0085] Figure 4 is a diagram illustrating an example 400 of a discontinuous reception (DRX) configuration in accordance with various aspects of the present disclosure.

[0086] As Figure 4 ​As shown, the base station 110 may send a DRX configuration to the UE 120 to configure a DRX cycle 405 for the UE 120. The DRX cycle 405 may include a DRX on duration 410 (e.g., during which the UE 120 is in a wake-up state or an active state) and an opportunity to enter a DRX sleep state 415. As used herein, the time during which the UE 120 is configured to be in an active state during the DRX on duration 410 may be referred to as active time, and the time during which the UE 120 is configured to be in the DRX sleep state 415 may be referred to as inactive time. As described below, the UE 120 may monitor the physical downlink control channel (PDCCH) during active time and may avoid monitoring the PDCCH during inactive time.

[0087] During the DRX on duration 410 (e.g., active time), the UE 120 may monitor the downlink control channel (e.g., PDCCH), as indicated by reference numeral 420. For example, the UE 120 may monitor the PDCCH for downlink control information (DCI) related to the UE 120. PDCCH communication intended for the UE 120 (e.g., including DCI related to the UE 120) may be referred to as paging directed to the UE 120. If the UE 120 does not detect and / or does not successfully decode any PDCCH communication intended for the UE 120 during the DRX on duration 410, the UE 120 may enter the sleep state 415 (e.g., within the inactive time) at the end of the DRX on duration 410, as indicated by reference numeral 425. In this way, the UE 120 may save battery power and reduce power consumption. As shown, the DRX cycle 405 may be repeated at a configured period according to the DRX configuration.

[0088] If the UE 120 detects and / or successfully decodes PDCCH communications intended for the UE 120, the UE 120 may remain active (e.g., awake) for the duration of the DRX inactivity timer 430 (e.g., this may extend the active time). The UE 120 may start the DRX inactivity timer 430 at the time of receiving the PDCCH communication (e.g., in the transmission time interval (TTI) in which the PDCCH communication is received (such as a time slot, a subframe, etc.)). The UE 120 may remain in the active state until the DRX inactivity timer 430 expires, at which point the UE 120 may enter the sleep state 415 (e.g., during the inactive time), as indicated by reference numeral 435. During the duration of the DRX inactivity timer 430, the UE 120 may continue to monitor PDCCH communications, may obtain downlink data communications scheduled by the PDCCH communications (e.g., on a downlink data channel such as a physical downlink shared channel (PDSCH)), may prepare and / or transmit uplink communications scheduled by the PDCCH communications (e.g., on a physical uplink shared channel (PUSCH)), and so on. The UE 120 may restart the DRX inactivity timer 430 after each detection of PDCCH communications for the UE 120 for an initial transmission (e.g., but not for a retransmission). By operating in this manner, the UE 120 may save battery power and reduce power consumption by entering the sleep state 415.

[0089] As noted above, Figure 4 is provided as an example. Other examples may be different from the example regarding Figure 4 described.

[0090] In a multi-SIM mode such as a dual SIM dual standby (DSDS) mode, a dedicated data service (DDS) subscriber may perform data activities, call activities, etc. For example, a DDS subscriber may be identified via user input, identified via the UE's default configuration, may be configured for the UE, etc. A non-DDS subscriber may perform call-related activities, small data activities (e.g., short message service (SMS) activities or multimedia message service (MMS) activities), or similar tasks. In some aspects, a DDS subscriber may be associated with a cheaper data plan (e.g., a low-cost data plan) than a non-DDS subscriber. A DDS subscriber may also be referred to as a default data SIM, default data subscription, primary subscription, etc. In some aspects, a DDS subscriber may be configured to send data (e.g., application data) and LTE voice (VoLTE) services, while a non-DDS subscriber may be configured only for VoLTE services. "Subscriber" is used interchangeably with "SIM" herein. The UE may perform activities associated with the DDS subscriber and the non-DDS subscriber via corresponding radio resource control (RRC) connections (e.g., different RRC connections for the DDS subscriber and the non-DDS subscriber).

[0091] In some cases, the network may not release the RRC connection after a data or signaling session has ended. The delay in releasing the RRC connection after a data or signaling session has ended may cause the corresponding subscriber (e.g., a DDS or non-DDS subscriber) to remain in the RRC connected mode until the RRC connection is released. In the connected mode, the network may configure a connected mode DRX (CDRX) cycle, such as a CDRX cycle longer than 160 ms. If the DDS subscriber and the non-DDS subscriber are in the RRC connected mode, the network may configure corresponding CDRX cycles for the DDS subscriber and the non-DDS subscriber. Assuming the CDRX cycle is correctly configured, the CDRX cycle may save power for the UE and may facilitate sharing of radio frequency resources between subscribers.

[0092] While maintaining the RRC connection after the end of a data or signaling session may be beneficial for a single-SIM UE, maintaining multiple RRC connections for a multi-SIM UE may increase the risk of conflicting CDRX cycles. For example, if the corresponding CDRX cycles of the DDS subscriber and the non-DDS subscriber are aligned such that the on durations of the corresponding CDRX cycles at least partially overlap (referred to as a conflict herein), the radio frequency resources may have to be allocated to only one of the subscribers, thereby reducing throughput, causing missed calls, increasing latency, degrading the user experience, and causing an out-of-sync (OOS) or radio link failure (RLF) state.

[0093] Some of the techniques and apparatuses described herein provide for resolving conflicts between two or more DRX cycles, at least in part, based on triggering a handover of one or more SIMs to an adjacent cell. For example, a UE may determine that a first DRX cycle associated with a first SIM overlaps (e.g., conflicts) with a second DRX cycle associated with a second SIM. The UE may identify an adjacent cell to which a handover of one or more of the first SIM or the second SIM can be triggered. In some aspects, the UE may send a measurement report (e.g., a modified measurement report) to trigger a handover to the adjacent cell. If the UE determines that no suitable adjacent cell has been identified, the handover has failed, or the conflict persists on the adjacent cell, the UE may skip one or more on durations associated with one or more DRX cycles such that the subscriber is active in alternating active times. In this way, throughput is increased, call reliability is improved, latency is reduced, the user experience is improved, and the occurrence of OOS and RLF states is reduced.

[0094] Figure 5 and 6 are diagrams illustrating examples 500 and 600 that resolve CDRX cycle conflicts, at least in part, based on triggering a handover, in accordance with various aspects of the present disclosure. The operations shown in examples 500 and 600 may be performed by a UE (e.g., UE 120). For example, the UE may be a multi-SIM UE associated with two or more SIMs (e.g., a SIM associated with a DDS subscriber and a SIM associated with a non-DDS subscriber). The first SIM may be associated with a first DRX cycle (e.g., a first CDRX cycle), and the second SIM may be associated with a second DRX cycle (e.g., a second CDRX cycle). Although example 500 is described with respect to two SIMs (e.g., a first SIM and a second SIM), the operations described with respect to example 500 may be performed for any number of SIMs associated with respective CDRX cycles.

[0095] Example 500 involves identifying an overlap between a first DRX cycle and a second DRX cycle, also referred to as a conflict. As shown in example 500, the UE may determine whether an overlap between the CDRX cycles of the first SIM and the second SIM is detected (block 510). For example, the UE may determine whether the active time of the first DRX cycle at least partially overlaps with the active time of the second DRX cycle. In some aspects, the UE may determine whether the active times of the first DRX cycle and the second DRX cycle overlap by at least a threshold (e.g., a threshold percentage of the active time). The UE may perform this determination periodically, at each active time, upon detecting a threshold throughput reduction, or at least in part based on another condition.

[0096] If the UE determines that no overlap is detected (box 510 – No), the UE may reset the conflict counter and return to box 510 (box 520). The conflict counter may indicate whether the UE is to attempt to trigger a handover to another cell. By resetting the conflict counter if no overlap is detected, the UE avoids triggering a handover when the conflict is non-persistent, thereby saving resources that would otherwise be used to trigger and facilitate the handover.

[0097] If the UE determines that an overlap is detected (box 510 – Yes), the UE may increment the conflict counter (box 530). As further shown, the UE may determine whether the conflict counter meets a conflict threshold (box 540). For example, the UE may perform the determination of box 540 periodically and at least in part based on incrementing the conflict counter and the like. In some aspects, the conflict threshold (e.g., at least in part based on a wireless communication specification) may be preconfigured for the UE. If the conflict counter fails to meet the conflict threshold (box 540 – No), the UE may return to box 510. If the conflict counter meets the conflict threshold (box 540 – Yes), the UE may take action to mitigate the overlap between the first DRX cycle and the DRX cycle, which is described starting from Figure 6 box 610. The conflict threshold may be preconfigured for the UE, determined by the UE, configured for the UE, etc.

[0098] Moving on to Figure 6 , the UE may determine whether the target SIM is associated with a suitable neighboring cell having a quality that meets the threshold (box 620). For example, the quality may be reference signal received power, reference signal received quality, signal-to-interference-plus-noise ratio, etc. In some aspects, the threshold (e.g., at least in part based on a wireless communication specification) may be preconfigured for the UE. The target SIM may be at least one of the first SIM or the second SIM. In some aspects, the UE may select the target SIM. For example, the UE may select the target SIM at least in part based on data or signaling sessions of the first SIM and / or the second SIM. In some aspects, the UE may select a SIM that is not associated with a performance-critical data or signaling session, not associated with a data or signaling session, etc. In some aspects, the target SIM may be preconfigured (e.g., whether the target SIM is the first SIM or the second SIM). For example, the target SIM may be preconfigured as a non-DDS SIM or a DDS SIM.

[0099] If the target SIM is not associated with a suitable neighboring cell having a quality that meets a threshold (box 620 - No), the UE may skip one or more DRX active times. For example, the UE may perform a Skip CDRX technique. The Skip CDRX technique is a technique by which the UE skips one or more DRX active times. In some aspects, the first SIM and the second SIM may be active in alternating active times based at least in part on skipping one or more DRX active times. For example, the Skip CDRX technique may include skipping the alternating active times of the first SIM and the second SIM such that only one of the first SIM and the first SIM is using the UE's radio frequency resources at a given time.

[0100] If the target SIM is associated with a suitable neighboring cell having a quality that meets a threshold (box 620 - Yes), the UE may send a measurement report (MR) configured to trigger a handover to the neighboring cell (box 640). For example, the MR may indicate a modified neighboring cell measurement associated with the neighboring cell. In some aspects, the UE may apply a power offset to the neighboring cell measurement to determine the modified neighboring cell measurement. In some aspects, the power offset may be a preconfigured value.

[0101] As shown, the UE may determine whether a handover command has been received within a time period (box 650). For example, the UE may determine whether the handover has failed based at least in part on whether a handover command has been received. If a handover command has not been received (box 650 - No), the UE may proceed to box 630. In some aspects, the UE may reset (e.g., deactivate) the power offset applied to the neighboring cell measurement of the MR.

[0102] If a handover command is received within the time period (box 650 - Yes), the UE may determine whether a conflict associated with the CDRX cycle is resolved (box 660). For example, the UE may determine whether the CDRX cycle of the target SIM (configured on the neighboring cell) and the CDRX cycle of the non - target SIM overlap or conflict. If the conflict is resolved (box 660 - Yes), for example, if the CDRX cycle of the target SIM and the CDRX cycle of the non - target SIM do not overlap (or overlap less than a threshold), the UE may continue to operate on the neighboring cell using the power offset for the neighboring cell measurement (box 670). If the conflict is not resolved (box 660 - No), for example, if the CDRX cycle of the target SIM and the CDRX cycle of the non - target SIM overlap (or overlap by at least a threshold), the UE may proceed to box 630.

[0103] In this way, throughput is increased, the reliability of calls is improved, latency is reduced, the user experience is improved, and the occurrence of OOS and RLF states is reduced.

[0104] As noted above, Figure 5 and 6 are provided as one or more examples. Other examples may be different from those described with respect to Figure 5 and 6 the examples.

[0105] Figure 7 FIG. is a diagram illustrating an example process 700, such as may be performed by a UE, in accordance with various aspects of the present disclosure. Example process 700 is an example in which a UE (e.g., UE 120) performs operations associated with techniques for discontinuous reception conflict resolution for a multi-SIM user equipment.

[0106] As Figure 7 shown, in some aspects, process 700 may include: determining that a first DRX cycle associated with a first SIM of the UE overlaps with a second DRX cycle associated with a second SIM of the UE (block 710). For example, the UE (e.g., using the determination component 808 depicted in Figure 8 ) may determine that a first DRX cycle associated with a first SIM of the UE overlaps with a second DRX cycle associated with a second SIM of the UE, as described above.

[0107] As Figure 7 further shown, in some aspects, process 700 may include: determining whether the quality of an adjacent cell meets a threshold, at least in part based on the determination that the first DRX cycle overlaps with the second DRX cycle (block 720). For example, the UE (e.g., using the determination component 808 depicted in Figure 8 ) may determine whether the quality of an adjacent cell meets a threshold, at least in part based on the determination that the first DRX cycle overlaps with the second DRX cycle, as described above.

[0108] As Figure 7 further shown, in some aspects, process 700 may include: transmitting a measurement report, at least in part based on the determination that the quality of the adjacent cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the adjacent cell (block 730). For example, the UE (e.g., using the transmission component 804 depicted in Figure 8 ) may transmit a measurement report, at least in part based on the determination that the quality of the adjacent cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the adjacent cell, as described above.

[0109] Process 700 may include additional aspects, such as any individual aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.

[0110] In a first aspect, process 700 includes skipping one or more active times associated with one or more of a first DRX cycle or a second DRX cycle, at least in part based on the quality of an adjacent cell failing to meet a threshold.

[0111] In a second aspect, alone or in combination with the first aspect, process 700 includes skipping one or more active times associated with one or more of a first DRX cycle or a second DRX cycle, at least in part based on a handover failure.

[0112] In a third aspect, alone or in combination with one or more of the first and second aspects, process 700 includes determining that a handover has failed, at least in part based on determining that no handover command has been received within a threshold time period.

[0113] In a fourth aspect, alone or in combination with one or more of the first through third aspects, process 700 includes performing the handover of at least one SIM to an adjacent cell, where the adjacent cell is associated with a third DRX cycle for the at least one SIM.

[0114] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, process 700 includes determining that the third DRX cycle overlaps with the DRX cycle of the SIM in a first SIM and a second SIM; and skipping one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM, at least in part based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

[0115] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, process 700 includes selecting (e.g., using a selection component 810) at least one SIM associated with a measurement report, at least in part based on a pending data session or a pending signaling session associated with the at least one SIM. Figure 8 of

[0116] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, at least one SIM is preconfigured to be associated with a measurement report.

[0117] While Figure 7 example boxes of process 700 are shown, in some aspects, process 700 may include additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner compared to those depicted in Figure 7 . Additionally or alternatively, two or more of the boxes of process 700 may be performed in parallel.

[0118] Figure 8 is a block diagram of an example apparatus 800 for wireless communication. The apparatus 800 can be a UE, or a UE can include the apparatus 800. In some aspects, the apparatus 800 includes a receiving component 802 and a transmitting component 804, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 800 can use the receiving component 802 and the transmitting component 804 to communicate with another apparatus 806 (such as a UE, a base station, or another wireless communication device). As further shown, the apparatus 800 can include one or more of a determining component 808 and a selecting component 810, etc.

[0119] In some aspects, the apparatus 800 can be configured to perform one or more operations described herein in connection with Figures 3 - 6 Additionally or alternatively, the apparatus 800 can be configured to perform one or more processes described herein, such as Figure 7 process 700. In some aspects, Figure 8 the apparatus 800 and / or one or more components shown in Figure 2 can include one or more components of the UE described above in connection with Figure 8 Additionally or alternatively, one or more components shown in Figure 2 can be implemented within one or more components described above in connection with

[0120] Additionally or alternatively, one or more components in a set of components can be at least partially implemented as software stored in a memory. For example, a component (or a part of a component) can be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component. Figure 2 described above in connection with the UE's one or more antennas, demodulators, MIMO detectors, receiving processors, controllers / processors, memories, or combinations thereof.

[0121] The transmitting component 804 may send communications to the device 806, such as reference signals, control information, data communications, or combinations thereof. In some aspects, one or more other components of the device 806 may generate communications and may provide the generated communications to the transmitting component 804 for transmission to the device 806. In some aspects, the transmitting component 804 may perform signal processing on the generated communications (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or coding, etc.), and may send the processed signal to the device 806. In some aspects, the transmitting component 804 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or combinations thereof of the UE described above Figure 2 In some aspects, the transmitting component 804 may be co-located with the receiving component 802 in a transceiver.

[0122] The determining component 808 may determine that a first DRX cycle associated with a first SIM of the UE overlaps with a second DRX cycle associated with a second SIM of the UE. In some aspects, the determining component 808 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or combinations thereof of the UE described above Figure 2 In some aspects, the determining component 808 may determine whether the quality of an adjacent cell meets a threshold at least partially based on the determination of the overlap between the first DRX cycle and the second DRX cycle. The controller / processor, memory, or combinations thereof of the UE described above Figure 2 The transmitting component 804 may send a measurement report at least partially based on the determination that the quality of the adjacent cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the adjacent cell. In some aspects, the determining component 808 may determine that the handover has failed at least partially based on determining that no handover command has been received within a threshold time period. In some aspects, the determining component 808 may determine that the DRX cycle overlaps with the DRX cycles of the SIMs of the first SIM and the second SIM.

[0123] The selecting component 810 may select at least one SIM associated with the measurement report at least partially based on outstanding data sessions or outstanding signaling sessions associated with at least one SIM. In some aspects, the selecting component 810 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or combinations thereof of the UE described above Figure 2 In some aspects, the selecting component 810 may be co-located with the receiving component 802 in a transceiver.

[0124] Figure 8The number and arrangement of the components shown are provided as examples. In fact, there may be additional components, fewer components, different components, or components arranged in a different manner compared to those Figure 8 shown. Additionally, Figure 8 two or more of the components shown may be implemented within a single component, or Figure 8 a single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 8 a group (one or more) of the components shown may perform one or more functions described as being performed by Figure 8 another group of components shown.

[0125] Figure 9 is a block diagram of an example apparatus 900 for wireless communication. Apparatus 900 may be a base station, or a base station may include apparatus 900. In some aspects, apparatus 900 includes a receiving component 902 and a transmitting component 904, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 900 may use receiving component 902 and transmitting component 904 to communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device). As further shown, apparatus 900 may include a switching component 908, etc.

[0126] In some aspects, apparatus 900 may be configured to perform one or more operations described herein in connection with Figures 3 - 6 described. Additionally or alternatively, apparatus 900 may be configured to perform one or more processes described herein, such as Figure 7 process 700. In some aspects, Figure 9 apparatus 900 and / or one or more of the components shown in Figure 2 may include one or more components of the base station described above in connection with Figure 9 described. Additionally or alternatively, Figure 2 one or more of the components shown in

[0127] The receiving component 902 can receive communications from the device 906, such as reference signals, control information, data communications, or combinations thereof. The receiving component 902 can provide the received communications to one or more other components of the device 900. In some aspects, the receiving component 902 can perform signal processing on the received communications (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and can provide the processed signals to one or more other components of the device 906. In some aspects, the receiving component 902 can include one or more antennas, demodulators, MIMO detectors, receiving processors, controllers / processors, memories, or combinations thereof of the base station described above in connection with Figure 2 the description.

[0128] The transmitting component 904 can send communications to the device 906, such as reference signals, control information, data communications, or combinations thereof. In some aspects, one or more other components of the device 906 can generate communications and can provide the generated communications to the transmitting component 904 for transmission to the device 906. In some aspects, the transmitting component 904 can perform signal processing on the generated communications (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.), and can send the processed signals to the device 906. In some aspects, the transmitting component 904 can include one or more antennas, modulators, transmitting MIMO processors, transmitting processors, controllers / processors, memories, or combinations thereof of the base station described above in connection with Figure 2 the description. In some aspects, the transmitting component 904 can be co-located with the receiving component 902 in a transceiver.

[0129] The receiving component 902 can receive a measurement report from the device 906. The measurement report can be configured to trigger a handover of the target SIM of the device 906. The handover component 908 can perform the handover.

[0130] Figure 9 The number and arrangement of the components shown are provided as an example. In fact, there can be additional components, fewer components, different components, or components arranged in a different manner compared to those shown. Additionally, Figure 9 two or more of the components shown can be implemented within a single component, or Figure 9 a single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 9 a group (one or more) of the components shown can perform one or more functions described as being performed by Figure 9 another group of components shown. Figure 9

[0131] A summary of aspects of the present disclosure is provided below:​

[0132] Aspect 1: A method for wireless communication performed by a user equipment (UE), comprising: determining that a first discontinuous reception (DRX) cycle associated with a first subscriber identity module (SIM) of the UE overlaps with a second DRX cycle associated with a second SIM of the UE; determining whether the quality of an adjacent cell meets a threshold at least in part based on the determination that the first DRX cycle overlaps with the second DRX cycle; and transmitting a measurement report at least in part based on the determination that the quality of the adjacent cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM or the second SIM to the adjacent cell.

[0133] Aspect 2: The method according to aspect 1, further comprising: skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least in part based on the quality of the adjacent cell failing to meet the threshold.

[0134] Aspect 3: The method according to aspect 1, further comprising: skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least in part based on the handover failure.

[0135] Aspect 4: The method according to aspect 3, further comprising: determining that the handover has failed at least in part based on determining that no handover command has been received within a threshold time period.

[0136] Aspect 5: The method according to aspect 1, further comprising: performing the handover of the at least one SIM to the adjacent cell, wherein the adjacent cell is associated with a third DRX cycle for the at least one SIM.

[0137] Aspect 6: The method according to aspect 5, further comprising: determining that the third DRX cycle overlaps with the DRX cycle of the SIM among the first SIM and the second SIM; and skipping one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM at least in part based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

[0138] Aspect 7: The method according to any one of aspects 1-6, further comprising: selecting the at least one SIM associated with the measurement report at least in part based on a pending data session or a pending signaling session associated with the at least one SIM.

[0139] Aspect 8: The method according to any one of aspects 1-7, wherein the at least one SIM is pre-configured to be associated with the measurement report.

[0140] Aspect 9: 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 the method according to one or more of aspects 1-8.

[0141] Aspect 10: A device 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 the method according to one or more of aspects 1-8.

[0142] Aspect 11: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more of aspects 1-8.

[0143] Aspect 12: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1-8.

[0144] Aspect 13: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1-8.

[0145] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations can be made in accordance with the above disclosure, or can be obtained from practice of the aspects.

[0146] As used herein, the term "component" is intended to be broadly construed as a combination of hardware and / or hardware and software. As used herein, a processor is implemented in hardware, firmware, and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented in different forms of hardware, firmware, and / or combinations of hardware and software. The actual specific control hardware or software code for implementing these systems and / or methods is not a limitation on the aspects. Thus, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, understanding that software and hardware can be designed to implement the systems and / or methods at least in part based on the description herein.

[0147] As used herein, depending on the context, meeting 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.

[0148] Even if a particular combination of features is recited in the claims and / or disclosed in the specification, such combinations are not intended to limit the disclosure of the various aspects. In fact, many of these features can be combined in ways not specifically recited in the claims and / or specifically disclosed in the specification. Although each dependent claim listed below may only directly depend on one claim, the disclosure of the various aspects includes the combination of each dependent claim with every other claim in the set of claims. The phrase "at least one" in reference to a list of items refers to any combination of those items, including a single member. By way of example, "at least one of a, b, or c" is intended to cover a, b, c, a - b, a - c, b - c, and a - b - c, as well as any combination of multiples of the same elements (e.g., a - a, a - a - a, a - a - b, a - a - c, a - b - b, a - c - c, b - b, b - b - b, b - b - c, c - c, and c - c - c or any other ordering of a, b, and c).

[0149] None of the elements, acts, or instructions used herein should be construed as critical or essential unless explicitly described as such. Additionally, as used herein, the articles "a" and "an" 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 referred to in conjunction with the article "the" and may be used interchangeably with "one or more". Additionally, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with "one or more". Where only one item is intended, the phrase "only one" or similar language is used. Additionally, as used herein, the terms "has", "have", "having", etc. are intended to be open - ended terms. Additionally, unless otherwise explicitly stated, the phrase "based on" is intended to mean "at least partially based on". Additionally, as used herein, the term "or" when used in a series is intended to be inclusive and may be used interchangeably with "and / or" unless otherwise explicitly stated (e.g., if used in conjunction with "either" or "only one of").

Claims

1. A method for wireless communication performed by a user equipment (UE), comprising: Determining that a first discontinuous reception (DRX) cycle associated with a first subscriber identity module (SIM) of the UE overlaps with a second DRX cycle associated with a second SIM of the UE; Determining whether the quality of an adjacent cell meets a threshold at least in part based on the determination that the first DRX cycle overlaps with the second DRX cycle; And Transmitting a measurement report at least in part based on the determination that the quality of the adjacent cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM or the second SIM to the adjacent cell.

2. The method according to claim 1, further comprising: Skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least in part based on the quality of the adjacent cell failing to meet the threshold.

3. The method according to claim 1, further comprising: Skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least in part based on a handover failure.

4. The method according to claim 3, further comprising: Determining that the handover has failed at least in part based on determining that no handover command has been received within a threshold time period.

5. The method according to claim 1, further comprising: Performing the handover of the at least one SIM to the adjacent cell, wherein the adjacent cell is associated with a third DRX cycle for the at least one SIM.

6. The method according to claim 5, further comprising: Determining that the third DRX cycle overlaps with the DRX cycle of the SIM among the first SIM and the second SIM; And Skipping one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM at least in part based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

7. The method according to claim 1, further comprising: Selecting the at least one SIM associated with the measurement report at least in part based on a pending data session or a pending signaling session associated with the at least one SIM.

8. The method according to claim 1, wherein, The at least one SIM is pre-configured to be associated with the measurement report.

9. A user equipment (UE) for wireless communication, comprising: A memory; And One or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: Determine that a first discontinuous reception (DRX) cycle associated with a first subscriber identity module (SIM) of the UE overlaps with a second DRX cycle associated with a second SIM of the UE; Determine whether the quality of an adjacent cell meets a threshold at least in part based on the determination that the first DRX cycle overlaps with the second DRX cycle; And Send a measurement report at least partially based on a determination that the quality of the neighboring cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the neighboring cell.

10. The UE according to claim 9, wherein, The one or more processors are further configured to: Skip one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least partially based on the quality of the neighboring cell failing to meet the threshold.

11. The UE according to claim 9, wherein, The one or more processors are further configured to: Skip one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least partially based on a handover failure.

12. The UE according to claim 11, wherein, The one or more processors are further configured to: Determine that the handover has failed at least partially based on a determination that no handover command has been received within a threshold time period.

13. The UE according to claim 9, wherein The one or more processors are further configured to: Perform the handover of the at least one SIM to the neighboring cell, wherein the neighboring cell is associated with a third DRX cycle for the at least one SIM.

14. The UE according to claim 13, wherein, The one or more processors are further configured to: Determine that the third DRX cycle overlaps with the DRX cycle of the SIM in the first SIM and the second SIM; and Skip one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM at least partially based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

15. The UE according to claim 9, wherein The one or more processors are further configured to: Select the at least one SIM associated with the measurement report at least partially based on a pending data session or a pending signaling session associated with the at least one SIM.

16. The UE according to claim 9, wherein, The at least one SIM is pre-configured to be associated with the measurement report.

17. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including: One or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to perform the following operations: Determine that a first discontinuous reception (DRX) cycle associated with a first subscriber identity module (SIM) of the UE overlaps with a second DRX cycle associated with a second SIM of the UE; Determine whether the quality of a neighboring cell meets a threshold at least partially based on a determination that the first DRX cycle overlaps with the second DRX cycle; And Send a measurement report at least partially based on a determination that the quality of the neighboring cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the neighboring cell.

18. The non-transitory computer-readable medium according to claim 17, wherein, The one or more instructions further cause the UE to perform the following operations: Skip one or more active times associated with one or more of the first DRX cycle or the second DRX cycle at least partially based on the quality of the neighboring cell failing to meet the threshold.

19. The non-transitory computer-readable medium according to claim 17, wherein, The one or more instructions further cause the UE to perform the following operations: Skip one or more active times associated with one or more of the first DRX cycle or the second DRX cycle, at least in part based on the handover failure.

20. The non-transitory computer-readable medium according to claim 19, wherein, The one or more instructions further cause the UE to perform the following operations: Determine that the handover has failed, at least in part based on determining that no handover command has been received within a threshold time period.

21. The non-transitory computer-readable medium according to claim 17, wherein, The one or more instructions further cause the UE to perform the following operations: Perform the handover of the at least one SIM to the neighboring cell, where the neighboring cell is associated with a third DRX cycle for the at least one SIM.

22. The non-transitory computer-readable medium according to claim 21, wherein, The one or more instructions further cause the UE to perform the following operations: Determine that the third DRX cycle overlaps with the DRX cycle of the SIM among the first SIM and the second SIM; And Skip one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM, at least in part based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

23. The non-transitory computer-readable medium according to claim 17, wherein, The one or more instructions further cause the UE to perform the following operations: Select the at least one SIM associated with the measurement report, at least in part based on a pending data session or a pending signaling session associated with the at least one SIM.

24. The non-transitory computer-readable medium according to claim 17, wherein, The at least one SIM is preconfigured to be associated with the measurement report.

25. An apparatus for wireless communication, comprising: A unit for determining that a first discontinuous reception (DRX) cycle associated with a first subscriber identity module (SIM) of the apparatus overlaps with a second DRX cycle associated with a second SIM of the apparatus; A unit for determining whether the quality of a neighboring cell meets a threshold, at least in part based on the determination that the first DRX cycle overlaps with the second DRX cycle; And A unit for transmitting a measurement report, at least in part based on the determination that the quality of the neighboring cell meets the threshold, the measurement report being configured to trigger a handover of at least one of the first SIM and the second SIM to the neighboring cell.

26. The apparatus according to claim 25, further comprising: A unit for skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle, at least in part based on the quality of the neighboring cell failing to meet the threshold.

27. The apparatus according to claim 25, further comprising: A unit for skipping one or more active times associated with one or more of the first DRX cycle or the second DRX cycle, at least in part based on the handover failure.

28. The apparatus according to claim 27, further comprising: A unit for determining that the handover has failed, at least in part based on determining that no handover command has been received within a threshold time period.

29. The apparatus according to claim 25, further comprising: A unit for performing the handover of the at least one SIM to the neighboring cell, wherein the neighboring cell is associated with a third DRX cycle for the at least one SIM.

30. The apparatus according to claim 29, further comprising: A unit for determining that the third DRX cycle overlaps with the DRX cycles of the SIMs among the first SIM and the second SIM; And A unit for skipping one or more active times associated with one or more of the third DRX cycle or the DRX cycle of the SIM, at least partially based on the overlap between the third DRX cycle and the DRX cycle of the SIM.

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