Multi-User Identity Module Capability Signaling Framework

Abstract

A technique is used to determine that a wireless device supports establishing multiple connections with a wireless network using multiple subscriber identity module (SIM) cards, generate a multi-SIM capability message, and transmit the multi-SIM capability message to a first wireless network. In another aspect, a technique for a wireless system receives a multi-SIM capability message from a wireless device, determines a connection configuration of the wireless device based on the received multi-SIM capability message, and transmits an indication of the configured connection to the wireless device.

Description

Technical Field

[0001] The present application relates to wireless devices and wireless networks including the devices, computer-readable media, and methods for implementing a framework for Multiple Universal Subscriber Identity Module (MUSIM) capability signaling. Background Art

[0002] The use of wireless communication systems is growing rapidly. In recent years, wireless devices such as smart phones and tablets have become increasingly sophisticated. In addition to supporting phone calls, many mobile devices now also provide access to the Internet, email, text messaging, and navigation using the Global Positioning System (GPS), and are capable of operating sophisticated applications that utilize these capabilities. In addition, there are many different wireless communication technologies and wireless communication standards. Some examples of wireless communication standards include GSM, UMTS (e.g., associated with WCDMA or TD-SCDMA air interfaces), LTE, Advanced LTE (LTE-A), HSPA, 3GPP2 CDMA2000 (e.g.: 1xRTT, 1xEV-DO, HRPD, eHRPD), IEEE 802.11 (WLAN or Wi-Fi), BLUETOOTH (BLUETOOTH), and UMTS (e.g., associated with WCDMA or TD-SCDMA air interfaces). TM wait.

[0003] The introduction of an ever-increasing number of features and functions in wireless communication devices also requires continuous improvements in wireless communications and improvements in wireless communication devices. In order to increase coverage and better serve the increased demand and range of intended uses of wireless communications, in addition to the above-mentioned communication standards, there are wireless communication technologies being developed, including fifth generation (5G) new radio (NR) communications. Therefore, there is a need for improvements in the field of supporting such development and design. Summary of the invention

[0004] Various aspects relate to devices, computer-readable media, and methods for a wireless device capable of determining that the wireless device supports using multiple Subscriber Identity Module (SIM) cards to establish multiple connections with a wireless network, generating a multi-SIM capability message, and transmitting the multi-SIM capability message to a first wireless network.

[0005] Aspects also relate to devices, computer-readable media, and methods for a wireless system capable of receiving a multi-SIM capability message from a wireless device, determining a connection configuration of the wireless device based on the received multi-SIM capability message, and transmitting an indication of the configured connection to the wireless device.

[0006] The techniques described herein may be implemented in and / or used with a number of different types of devices, including, but not limited to, any of cellular telephones, wireless devices, tablet computers, wearable computing devices, portable media players, and a variety of other computing devices.

[0007] This disclosure is intended to provide a brief overview of some of the topics described in this document. Therefore, it should be understood that the above features are only examples and should not be construed as narrowing the scope or essence of the topics described herein in any way. Other features, aspects and advantages of the topics described herein will become apparent through the following detailed description, drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] A better understanding of the present subject matter may be gained when the following detailed description of the various aspects is considered in conjunction with the following drawings.

[0009] Figure 1

[0013] An example wireless communication system in accordance with some aspects is shown.

[0010] Figure 2 A base station (BS) in communication with a user equipment (UE) device is shown in accordance with some aspects.

[0011] Figure 3 An exemplary block diagram of a UE according to some aspects is shown.

[0012] Figure 4 An exemplary block diagram of a BS in accordance with some aspects is shown.

[0013] Figure 5 An exemplary block diagram of cellular communication circuitry according to some aspects is shown.

[0014] Figure 6 An exemplary block diagram of a network element according to some aspects is shown.

[0015] Fig. 7A An example of connectivity between an evolved packet core (EPC) network, an LTE base station (NB), and a 5G NR base station (gNB) according to some aspects is shown.

[0016] Figure 7B Examples of protocol stacks for eNB and gNB according to some aspects are shown.

[0017] Figure 8 An example of a baseband processor architecture for a UE according to some aspects is shown.

[0018] Fig. 9 A message sequence chart illustrating multi-SIM indication according to aspects of the present disclosure is shown.

[0019] Fig.10 A message sequence chart illustrating multi-SIM indication according to aspects of the present disclosure is shown.

[0020] Fig.11 A message sequence chart illustrating multi-SIM indication according to aspects of the present disclosure is shown.

[0021] Fig.12 A message sequence chart illustrating multi-SIM wireless device assistance information according to aspects of the present disclosure.

[0022] Fig.13 A message sequence chart illustrating multi-SIM wireless device assistance information according to aspects of the present disclosure.

[0023] Fig.14 A message sequence chart illustrating multi-SIM wireless device assistance information utilizing multiple wireless networks according to aspects of the present disclosure.

[0024] Fig.15 A message sequence chart illustrating multi-SIM wireless device assistance information utilizing multiple wireless networks according to aspects of the present disclosure.

[0025] Fig.16 A flow chart illustrating a technique for multiple SIM indication according to aspects of the present disclosure is provided.

[0026] Fig.17 A flow chart illustrating a technique for multiple SIM indication according to aspects of the present disclosure is provided.

[0027] Although the features described herein are susceptible to various modifications and alternative forms, specific aspects thereof are shown by way of example in the drawings and described in detail herein. However, it should be understood that the drawings and detailed description thereof are not intended to limit this document to the specific forms disclosed, but on the contrary, the purpose is to cover all modifications, equivalents and alternatives that fall within the spirit and scope of the subject matter as defined by the appended claims. DETAILED DESCRIPTION

[0028] In certain wireless communication systems, a wireless device may support multiple SIM cards, allowing the wireless device to maintain multiple wireless connections using the SIM cards. In some cases, these multiple wireless connections may have conflicting configurations for the wireless device, or these configurations may be optimized to improve performance of the wireless device, such as battery life. What is needed is a framework for multi-SIM capability signaling for a wireless device to indicate to a wireless network that the wireless device supports multiple SIM cards and that reconfiguration is desired.

[0029] The following is a glossary of terms that may be used in this disclosure:

[0030] Memory medium - any of various types of non-transitory memory devices or storage devices. The term "memory medium" is intended to include installation media, such as CD-ROM, floppy disk or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory such as flash memory, magnetic media, for example, hard disk drive or optical storage device; registers or other similar types of memory elements, etc. The memory medium may also include other types of non-transitory memory or a combination thereof. In addition, the memory medium may be located in the first computer system executing the program, or may be located in a different second computer system connected to the first computer system via a network such as the Internet. In the latter case, the second computer system may provide program instructions to the first computer for execution. The term "memory medium" may include two or more memory media that may reside in different locations in different computer systems connected, for example, via a network. The memory medium may store program instructions (e.g., in the form of a computer program) that may be executed by one or more processors.

[0031] Carrier Media—storage media as described above and physical transmission media such as a bus, network, and / or other physical transmission media that carry signals such as electrical, electromagnetic, or digital signals.

[0032] Programmable hardware elements - include various hardware devices that include multiple programmable function blocks connected via programmable interconnects. Examples include FPGAs (field programmable gate arrays), PLDs (programmable logic devices), FPOAs (field programmable object arrays), and CPLDs (complex PLDs). Programmable function blocks can vary from fine-grained (combinational logic units or lookup tables) to coarse-grained (arithmetic logic units or processor cores). Programmable hardware elements may also be referred to as "configurable logic units."

[0033] Computer System—Any of various types of computing or processing systems, including a personal computer system (PC), a mainframe computer system, a workstation, a network appliance, an Internet appliance, a personal digital assistant (PDA), a television system, a grid computing system, or other devices or combinations of devices. In general, the term "computer system" can be broadly defined to encompass any device (or combination of devices) having at least one processor that executes instructions from a memory medium.

[0034] User Equipment (UE) (also referred to as "user device" or "UE device") - any of various types of computer systems or devices that are mobile or portable and that perform wireless communications. Examples of UE devices include mobile phones or smart phones (e.g., iPhoneTM 、Based on Android TM phones), portable gaming devices (e.g., Nintendo DS TM , PlayStation Portable TM 、Gameboy Advance TM , iPhone TM ), laptops, wearable devices (e.g., smart watches, smart glasses), PDAs, portable internet devices, music players, data storage devices, other handheld devices, in-vehicle infotainment (IVI), in-car entertainment (ICE) devices, instrument clusters, head-up display (HUD) devices, on-board diagnostic (OBD) devices, dashboard mobile equipment (DME), mobile data terminals (MDT), electronic engine management systems (EEMS), electronic / engine control units (ECU), electronic / engine control modules (ECM), embedded systems, microcontrollers, control modules, engine management systems (EMS), connected or "smart" appliances, machine type communication (MTC) devices, machine interaction (M2M), Internet of Things (IoT) devices, etc. In general, the term "UE" or "UE device" can be broadly defined to include any electronic, computing and / or telecommunication device (or combination of devices) that can be carried by a user and that can communicate wirelessly.

[0035] Wireless Device—Any of various types of computer systems or devices that perform wireless communications. A wireless device may be portable (or mobile), or may be stationary or fixed at a certain location. A UE is an example of a wireless device.

[0036] Communication device - any of various types of computer systems or devices that perform communication, where the communication may be wired or wireless. A communication device may be portable (or mobile), or may be stationary or fixed at a location. A wireless device is an example of a communication device. A UE is another example of a communication device.

[0037] Base Station - The term "base station" or "wireless station" has the full scope of its ordinary meaning and includes at least a wireless communication station that is installed at a fixed location and used to communicate as part of a wireless telephone system or radio system. For example, if a base station is implemented in the context of LTE, it may alternatively be referred to as an "eNodeB" or "eNB". If a base station is implemented in the context of 5G NR, it may alternatively be referred to as a "gNodeB" or "gNB". Although certain aspects are described in the context of LTE or 5G NR, references to "eNB", "gNB", "nodeB", "base station", "NB", etc. may also refer to one or more wireless nodes that serve a cell to provide wireless connectivity between a user device and a generally wider network, and the concepts discussed are not limited to any particular wireless technology. Although certain aspects are described in the context of LTE or 5G NR, references to "eNB", "gNB", "nodeB", "base station", "NB", etc. are not intended to limit the concepts discussed herein to any particular wireless technology, and the concepts discussed may be applied to any wireless system.

[0038] Node—As used herein, the term “node” or “wireless node” may refer to one or more devices associated with a cell that provides wireless connectivity between user equipment and a typically wired network.

[0039] Processing element (or processor) - refers to various elements or combinations of elements that are capable of performing functions in a device such as user equipment or cellular network equipment. Processing elements may include, for example, processors and associated memory, portions or circuits of individual processor cores, entire processor cores, separate processors, processor arrays, circuits such as ASICs (application specific integrated circuits), programmable hardware elements such as field programmable gate arrays (FPGAs), and any of the above combinations.

[0040] Channel - a medium used to transmit information from a sender (transmitter) to a receiver. It should be noted that since the characteristics of the term "channel" may vary according to different wireless protocols, the term "channel" used in the present invention may be considered to be used in a manner that conforms to the standards of the type of device to which the term is used. In some standards, the channel width may be variable (e.g., depending on device capabilities, frequency band conditions, etc.). For example, LTE may support scalable channel bandwidths of 1.4MHz to 20MHz. In contrast, a WLAN channel may be 22MHz wide, while a Bluetooth channel may be 1Mhz wide. Other protocols and standards may include different definitions of channels. In addition, some standards may define and use multiple types of channels, such as different channels for uplink or downlink and / or different channels for different purposes such as data, control information, etc.

[0041] Frequency band—The term “frequency band” has the full breadth of its ordinary meaning and includes at least a segment of the spectrum (eg, radio frequency spectrum) in which channels are used or set aside for the same purpose.

[0042] Automatic—refers to an action or operation being performed by a computer system (e.g., software executed by a computer system) or a device (e.g., a circuit, a programmable hardware element, an ASIC, etc.) without the need for the action or operation to be directly specified or performed by a user input. Thus, the term "automatic" is in contrast to an operation that is manually performed or specified by a user, where the user provides input to directly perform the operation. An automatic process may be initiated by input provided by a user, but the subsequent actions performed "automatically" are not specified by the user, i.e., are not performed "manually," where the user specifies each action to be performed. For example, a user filling out an electronic form by selecting each field and providing input specifying information (e.g., by typing in information, selecting checkboxes, radio selections, etc.) is manually filling out the form, even though the computer system must update the form in response to the user action. The form may be automatically filled out by a computer system, where the computer system (e.g., software executed on the computer system) analyzes the fields of the form and fills out the form without any user input specifying the answers to the fields. As indicated above, a user may invoke automatic filling out of a form, but not participate in the actual filling out of the form (e.g., the user does not manually specify the answers to the fields but rather they are automatically completed). This specification provides various examples of operations that are automatically performed in response to actions taken by a user.

[0043] About - refers to a value that is close to a correct or exact value. For example, about can refer to a value that is within 1% to 10% of an exact (or desired) value. However, it should be noted that the actual threshold (or tolerance) may depend on the application. For example, in some aspects, "about" may mean within 0.1% of some specified or desired value, while in various other aspects, the threshold may be, for example, 2%, 3%, 5%, etc., depending on the desires or requirements of a particular application.

[0044] Concurrency - refers to parallel execution or implementation, where tasks, processes, or programs are executed in an at least partially overlapping manner. For example, concurrency can be achieved using "strong" or strict parallelism, where tasks are executed (at least partially) in parallel on respective computing elements, or using "weak parallelism," where tasks are executed in an interleaved manner (e.g., by time multiplexing of execution threads).

[0045] Configured to - Various components may be described as being "configured to" perform one or more tasks. In such environments, "configured to" is a broad statement that generally means "having a structure" that performs one or more tasks during operation. Thus, a component can be configured to perform a task even when the component is not currently performing the task (e.g., a set of electrical conductors can be configured to electrically connect a module to another module even when the two modules are not connected). In some contexts, "configured to" can be a broad statement that generally means "having a structure" that performs one or more tasks during operation. Thus, the component can be configured to perform a task even when the component is not currently turned on. Typically, the circuitry that forms the structure corresponding to "configured to" may include hardware circuitry.

[0046] For ease of description, various components may be described as performing one or more tasks. Such descriptions should be interpreted as including the phrase "configured to". The description of a component being configured to perform one or more tasks is expressly intended not to invoke 35 U.S.C. §112(f) interpretation of that component.

[0047] Exemplary Wireless Communication System

[0048] Now go to Figure 1 , shows a simplified example of a wireless communication system according to some aspects. Note that Figure 1 The system is only one example of possible systems, and features of the present disclosure may be implemented in any of a variety of systems as desired.

[0049] As shown, the exemplary wireless communication system includes a base station 102A, which communicates with one or more user equipment 106A, user equipment 106B to user equipment 106N, etc. through a transmission medium. Each user equipment may be referred to as a "user equipment" (UE) in this article. Therefore, user equipment 106 is referred to as UE or UE device.

[0050] The base station (BS) 102A may be a base transceiver station (BTS) or a cell site ("cellular base station") and may include hardware that enables wireless communications with the UEs 106A through 106N.

[0051] The communication area (or coverage area) of a base station may be referred to as a "cell". The base station 102A and the UE 106 may be configured to communicate over a transmission medium using any of a variety of radio access technologies (RATs), which are also referred to as wireless communication technologies or telecommunication standards, such as GSM, UMTS (associated with, for example, WCDMA or TD-SCDMA air interfaces), LTE, Advanced LTE (LTE-A), 5G New Radio (5G-NR), HSPA, 3GPP2CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), and the like. Note that if the base station 102A is implemented in the context of LTE, it may alternatively be referred to as an "eNodeB" or "eNB". Note that if the base station 102A is implemented in the context of 5G NR, it may alternatively be referred to as a "gNodeB" or "gNB".

[0052] In some embodiments, UE 106 may be an IoT UE, which may include a network access layer designed for low-power IoT applications that utilize short-term UE connections. The IoT UE may utilize technologies such as M2M or MTC to exchange data with an MTC server or device via a public land mobile network (PLMN), a short-range service (ProSe), or a device-to-device (D2D) communication, a sensor network, or an IoT network. M2M or MTC data exchange may be machine-initiated data exchange. The IoT network describes interconnected IoT UEs that may include uniquely identifiable embedded computing devices (within the Internet infrastructure) with short-lived connections. As an example, vehicle-to-everything (V2X) may utilize ProSe features using a PC5 interface to communicate directly between devices. The IoT UE may also execute background applications (e.g., keep active messages, status updates, etc.) to facilitate connectivity to the IoT network.

[0053] As shown, UE 106 (such as UE 106A and UE 106B) can directly exchange communication data via PC5 interface 108. PC5 interface 105 may include one or more logical channels, including but not limited to a physical sublink shared channel (PSSCH), a physical sublink control channel (PSCCH), a physical sublink shared channel (PSSCH), a physical sublink downlink channel (PSDCH), a physical sublink broadcast channel (PSBCH), and a physical sublink feedback channel (PSFCH).

[0054] In a V2X scenario, one or more of the base stations 102 may be a roadside unit (RSU) or act as an RSU. The term RSU may refer to any transportation infrastructure entity used for V2X communication. The RSU may be implemented in or by a suitable wireless node or a stationary (or relatively stationary) UE, wherein an RSU implemented in or by a UE may be referred to as a "UE-type RSU", an RSU implemented in or by an eNB may be referred to as an "eNB-type RSU", an RSU implemented in or by a gNB may be referred to as a "gNB-type RSU", and so on. In one example, the RSU is a computing device coupled to a radio frequency circuit located on the road side that provides connectivity support to a passing vehicle UE (vUE). The RSU may also include internal data storage circuitry for storing intersection map geometry, traffic statistics, media, and applications / software for sensing and controlling ongoing vehicle and pedestrian traffic. The RSU may operate on the 5.9 GHz Direct Short Range Communication (DSRC) band to provide extremely low latency communications required for high-speed events, such as collision avoidance, traffic warnings, etc. In addition or alternatively, the RSU may operate on the cellular V2X band to provide the aforementioned low latency communications as well as other cellular communication services. In addition or alternatively, the RSU may operate as a Wi-Fi hotspot (2.4 GHz band) and / or provide connectivity to one or more cellular networks to provide uplink and downlink communications. Some or all of the computing device and the RSU's RF circuitry may be packaged in a weather-resistant enclosure suitable for outdoor installation, and may include a network interface controller to provide a wired connection (e.g., Ethernet) to a traffic signal controller and / or backhaul network.

[0055] As shown, base station 102A may also be configured to communicate with network 100 (e.g., a core network of a cellular service provider, a telecommunications network such as a public switched telephone network (PSTN), and / or the Internet, among other possibilities). Thus, base station 102A may facilitate communications between user devices and / or between user devices and network 100. In particular, cellular base station 102A may provide UE 106 with various communication capabilities, such as voice, SMS, and / or data services.

[0056] Base station 102A and other similar base stations (such as base stations 102B...102N) operating according to the same or different cellular communication standards can therefore be provided as a network of cells that can provide continuous or nearly continuous overlapping service to UE 106A-N and similar devices over a geographic area via one or more cellular communication standards.

[0057] Thus, although base station 102A may function as Figure 1106A-N, but each UE 106 may also be able to receive signals from (and possibly be within communication range of) one or more other cells (which may be provided by base stations 102B-N and / or any other base stations), which may be referred to as "neighboring cells." Such cells may also be able to facilitate communications between user devices and / or between user devices and network 100. Such cells may include "macro" cells, "micro" cells, "pico" cells, and / or cells of any various other granularity of service area size. For example, in Figure 1 The base stations 102A-102B shown in FIG. 1 may be macro cells, while the base station 102N may be a micro cell. Other configurations are also possible.

[0058] In some aspects, base station 102A may be a next generation base station, such as a 5G New Radio (5GNR) base station or "gNB". In some aspects, the gNB may be connected to a legacy evolved packet core (EPC) network and / or to an NR core (NRC) / 5G core (5GC) network. In addition, a gNB cell may include one or more transition and reception points (TRPs). In addition, a UE capable of operating in accordance with 5GNR may be connected to one or more TRPs within one or more gNBs. For example, base station 102A and one or more other base stations 102 may support joint transmissions such that UE 106 may be able to receive transmissions from multiple base stations (and / or multiple TRPs provided by the same base station). For example, as Figure 1 As shown, base station 102A and base station 102C are both shown serving UE 106A.

[0059] It should be noted that the UE 106 is capable of communicating using multiple wireless communication standards. For example, in addition to at least one cellular communication protocol (e.g., GSM, UMTS (associated with, for example, WCDMA or TD-SCDMA air interface), LTE, LTE-A, 5G NR, HSPA, 3GPP2CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), etc.), the UE 106 can be configured to communicate using wireless networking (e.g., Wi-Fi) and / or peer-to-peer wireless communication protocols (e.g., Bluetooth, Wi-Fi peer-to-peer, etc.). If desired, the UE 106 can also or alternatively be configured to communicate using one or more global navigation satellite systems (GNSS, such as GPS or GLONASS), one or more mobile television broadcast standards (e.g., Advanced Television Systems Committee—Mobile / Handheld (ATSC-M / H)), and / or any other wireless communication protocol. Other combinations of wireless communication standards (including more than two wireless communication standards) are also possible.

[0060] Exemplary User Equipment (UE)

[0061] Figure 2 A user equipment 106 (e.g., one of devices 106A-106N) is shown in accordance with some aspects in communication with base station 102. UE 106 may be a device with cellular communication capabilities, such as a mobile phone, handheld device, computer, laptop, tablet, smart watch or other wearable device, or indeed any type of wireless device.

[0062] UE 106 may include a processor (processing element) configured to execute program instructions stored in a memory. UE 106 may perform any of the method aspects described herein by executing such stored instructions. Alternatively or in addition, UE 106 may include a programmable hardware element, such as an FPGA (field programmable gate array), an integrated circuit, and / or any of a variety of other possible hardware components configured to perform (e.g., individually or in combination) any of the method aspects described herein or any portion of any of the method aspects described herein.

[0063] UE 106 may include one or more antennas for communicating using one or more wireless communication protocols or technologies. In some aspects, UE 106 may be configured to communicate using, for example, NR or LTE using at least some shared radio components. As an additional possibility, the UE 106 may be configured to communicate using CDMA2000 (1xRTT / 1xEV-DO / HRPD / eHRPD) or LTE using a single shared radio component and / or GSM or LTE using a single shared radio component. The shared radio may be coupled to a single antenna, or may be coupled to multiple antennas (e.g., for MIMO) for performing wireless communications. Typically, the radio component may include any combination of a baseband processor, an analog radio frequency (RF) signal processing circuit (e.g., including filters, mixers, oscillators, amplifiers, etc.), or a digital processing circuit (e.g., for digital modulation and other digital processing). Similarly, the radio component may use the aforementioned hardware to implement one or more receive chains and transmit chains. For example, UE 106 may share one or more portions of a receive chain and / or transmit chain between multiple wireless communication technologies such as those discussed above.

[0064] In some aspects, the UE 106 may include a separate transmit chain and / or receive chain (e.g., including separate antennas and other radio components) for each wireless communication protocol with which it is configured to communicate. As another possibility, the UE 106 may include one or more radio components shared between multiple wireless communication protocols, and one or more radio components used uniquely by a single wireless communication protocol. For example, the UE 106 may include a shared radio component for communicating using either LTE or 5G NR (or, in various possibilities, either LTE or 1xRTT, or either LTE or GSM), and an independent radio component for communicating using each of Wi-Fi and Bluetooth. Other configurations are also possible.

[0065] In some embodiments, a downlink resource grid may be used for downlink transmissions from any of the base stations 102 to the UE 106, while uplink transmissions may utilize similar techniques. The grid may be a time-frequency grid, referred to as a resource grid or a time-frequency resource grid, which is a physical resource in the downlink in each time slot. For OFDM systems, such time-frequency plane representation is a common practice, which makes radio resource allocation intuitive. Each column and each row of the resource grid corresponds to an OFDM symbol and an OFDM subcarrier, respectively. The duration of the resource grid in the time domain corresponds to a time slot in a radio frame. The smallest time-frequency unit in the resource grid is represented as a resource element. Each resource grid may include multiple resource blocks that describe the mapping of specific physical channels to resource elements. Each resource block includes a collection of resource elements. Such resource blocks are used to transmit several different physical downlink channels.

[0066] The physical downlink shared channel (PDSCH) may carry user data and higher layer signaling to the UE 106. The physical downlink control channel (PDCCH) may carry information about, among other things, the transport format and resource allocation associated with the PDSCH channel. It may also inform the UE 106 of the transport format, resource allocation, and H-ARQ (Hybrid Automatic Repeat Request) information associated with the uplink shared channel. Typically, downlink scheduling (allocation of control and shared channel resource blocks to the UE 102 within the cell) may be performed at any of the base stations 102 based on channel quality information fed back from any of the UEs 106. Downlink resource allocation information may be sent on the PDCCH for (e.g., allocated to) each of the UEs.

[0067] PDCCH can use control channel elements (CCE) to transmit control information. Before being mapped to resource elements, the PDCCH complex-valued symbols can first be organized into quadruplets, which can then be arranged using a sub-block interleaver for rate matching. One or more of these CCEs can be used to transmit each PDCCH, where each CCE can correspond to four sets of nine physical resource elements, called resource element groups (REGs). Four quadrature phase shift keying (QPSK) symbols can be mapped to each REG. Depending on the size of the downlink control information (DCI) and channel conditions, one or more CCEs can be used to transmit the PDCCH. There may be four or more different PDCCH formats defined in LTE with different numbers of CCEs (e.g., aggregation levels, L=1, 2, 4, or 8).

[0068] Exemplary Communication Devices

[0069] Figure 3 1 shows an exemplary simplified block diagram of a communication device 106 according to some aspects. Note that Figure 3 The block diagram of the communication device is only an example of a possible communication device. According to various aspects, the communication device 106 can be a user equipment (UE) device, a mobile device or mobile station, a wireless device or wireless station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, a notebook or a portable computing device), a tablet computer and / or a combination of devices, in addition to other devices. As shown, the communication device 106 may include a group of components 300 configured to perform core functions. For example, the group of components may be implemented as a system on a chip (SOC), which may include parts for various purposes. Alternatively, the group of components 300 may be implemented as a separate component or group of components for various purposes. This group of components 300 may be coupled to various other circuits of the communication device 106 (e.g., communicatively; directly or indirectly).

[0070] For example, the communication device 106 may include various types of memory (e.g., including NAND flash memory 310), input / output interfaces such as connector I / F 320 (e.g., for connecting to a computer system; a docking station; a charging station; input devices such as a microphone, camera, keyboard; output devices such as speakers; etc.), a display 360 that may be integrated with the communication device 106 or external to it, and wireless communication circuitry 330 (e.g., for LTE, LTE-A, NR, UMTS, GSM, CDMA2000, Bluetooth, Wi-Fi, NFC, GPS, etc.). In some aspects, the communication device 106 may include wired communication circuitry (not shown), such as, for example, a network interface card for Ethernet.

[0071] Wireless communication circuitry 330 may be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as one or more antennas 335 as shown. Wireless communication circuitry 330 may include cellular communication circuitry and / or short- to medium-range wireless communication circuitry, and may include multiple receive chains and / or multiple transmit chains for receiving and / or transmitting multiple spatial streams, such as in a multiple-input multiple-output (MIMO) configuration.

[0072] In some aspects, as further described below, the cellular communication circuitry 330 can include one or more receive chains for multiple RATs (including and / or coupled to (e.g., communicatively; directly or indirectly) dedicated processors and / or radio components (e.g., a first receive chain for LTE and a second receive chain for 5G NR). In addition, in some aspects, the cellular communication circuitry 330 can include a single transmit chain that can switch between radio components dedicated to specific RATs. For example, a first radio component can be dedicated to a first RAT (e.g., LTE) and can communicate with a dedicated receive chain and a transmit chain shared with a second radio component. The second radio component can be dedicated to a second RAT (e.g., 5G NR). NR), and can communicate with a dedicated receive chain and a shared transmit chain. In some aspects, the second RAT can operate at millimeter wave frequencies. Since the operating frequency of the millimeter wave system is higher than the typical frequency in the LTE system, the signals in the millimeter wave frequency range are severely attenuated due to environmental factors. To help solve this attenuation problem, millimeter wave systems typically utilize beamforming and include more antennas than LTE systems. These antennas can be organized into antenna arrays or panels composed of individual antenna elements. These antenna arrays can be coupled to the radio link.

[0073] The communication device 106 may also include and / or be configured for use with one or more user interface elements. The user interface elements may include various elements such as a display 360 (which may be a touch screen display), a keyboard (which may be a separate keyboard or may be implemented as part of a touch screen display), a mouse, a microphone and / or speakers, one or more cameras, one or more buttons, and / or any of a variety of other elements capable of providing information to a user and / or receiving or interpreting user input.

[0074] The communication device 106 may also include one or more smart cards 345, such as one or more UICC (Universal Integrated Circuit Card) cards, one or more Universal User Identity Modules (USIM) and / or one or more embedded SIMs (eSIMs), which have SIM (User Identity Module) functions. In some cases, these SIM cards may be separate cards that can be placed in the communication device 106 or built into (e.g., embedded in) the communication device 106. The communication device 106 may be configured with any combination of one or more eSIMs and / or separate SIM cards. In this example, the communication device includes two smart cards 345. The smart card 345 includes an International Mobile Subscriber Identity (IMSI) number and an associated security key. The IMSI number can be used to identify and authenticate the communication device 106 using a wireless network. In the case where the communication device 106 includes multiple smart cards 345, the communication device 106 is able to establish a separate connection with the wireless network using each smart card 345.

[0075] As shown, the SOC 300 may include a processor 302 that may execute program instructions for the communication device 106 and a display circuit 304 that may perform graphics processing and provide display signals to a display 360. The one or more processors 302 may also be coupled to a memory management unit (MMU) 340 (which may be configured to receive addresses from the one or more processors 302 and convert those addresses to locations in a memory (e.g., a memory 306, a read-only memory (ROM) 350, a NAND flash memory 310)), and / or to other circuits or devices (such as the display circuit 304, the wireless communication circuit 330, the connector I / F 320, and / or the display 360). The MMU 340 may be configured to perform memory protection and page table translation or setup. In some aspects, the MMU 340 may be included as part of the processor 302.

[0076] As described above, the communication device 106 may be configured to communicate using wireless and / or wired communication circuits. As described herein, the communication device 106 may include hardware and software components for implementing any of the various features and techniques described herein. For example, by executing program instructions stored on a memory medium (e.g., a non-transient computer-readable memory medium), the processor 302 of the communication device 106 may be configured to implement part or all of the features described in the present invention. Alternatively (or in addition thereto), the processor 302 may be configured as a programmable hardware element, such as an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit). Alternatively (or in addition thereto), in combination with one or more components in other components 300, 304, 306, 310, 320, 330, 340, 345, 350, 360, the processor 302 of the communication device 106 may be configured to implement part or all of the features described herein.

[0077] In addition, as described in the present invention, processor 302 may include one or more processing elements. Therefore, processor 302 may include one or more integrated circuits (ICs) configured to perform the functions of processor 302. In addition, each integrated circuit may include circuits (e.g., first circuits, second circuits, etc.) configured to perform the functions of one or more processors 302.

[0078] In addition, as described herein, wireless communication circuit 330 may include one or more processing elements. In other words, one or more processing elements may be included in wireless communication circuit 330. Therefore, wireless communication circuit 330 may include one or more integrated circuits (ICs) configured to perform the functions of wireless communication circuit 330. In addition, each integrated circuit may include circuits (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of wireless communication circuit 330.

[0079] Exemplary Base Station

[0080] Figure 4 1 shows an exemplary block diagram of a base station 102 according to some aspects. Note that Figure 4 The base station of is only one example of a possible base station. As shown, the base station 102 may include a processor 404 that may execute program instructions for the base station 102. The processor 404 may also be coupled to a memory management unit (MMU) 440 or other circuit or device, which may be configured to receive addresses from the processor 404 and convert these addresses to locations in memory (e.g., memory 460 and read-only memory (ROM) 450).

[0081] Base station 102 may include at least one network port 470. Network port 470 may be configured to couple to a telephone network and provide access to the telephone network described above. Figure 1 and Figure 2 Multiple devices of the telephone network described in, such as UE device 106.

[0082] The network port 470 (or an additional network port) may also or alternatively be configured to couple to a cellular network, such as a core network of a cellular service provider. The core network may provide mobility-related services and / or other services to multiple devices, such as the UE device 106. In some cases, the network port 470 may be coupled to a telephone network via the core network, and / or the core network may provide a telephone network (e.g., in other UE devices served by the cellular service provider).

[0083] In some aspects, base station 102 may be a next generation base station, e.g., a 5G New Radio (5GNR) base station or "gNB". In such aspects, base station 102 may be connected to a legacy evolved packet core (EPC) network and / or to an NR core (NRC) / 5G core (5GC) network. Furthermore, base station 102 may be considered a 5G NR cell and may include one or more transition and reception points (TRPs). Furthermore, a UE capable of operating in accordance with 5G NR may be connected to one or more TRPs within one or more gNBs.

[0084] The base station 102 may include at least one antenna 434 and possibly multiple antennas. The at least one antenna 434 may be configured to function as a wireless transceiver and may be further configured to communicate with the UE device 106 via the radio component 430. The antenna 434 communicates with the radio component 430 via a communication chain 432. The communication chain 432 may be a receive chain, a transmit chain, or both. The radio component 430 may be configured to communicate via various wireless communication standards, including but not limited to 5G NR, LTE, LTE-A, GSM, UMTS, CDMA2000, Wi-Fi, etc.

[0085] The base station 102 may be configured to perform wireless communications using multiple wireless communication standards. In some cases, the base station 102 may include multiple radios that enable the base station 102 to communicate according to multiple wireless communication technologies. For example, as one possibility, the base station 102 may include an LTE radio component for performing communications according to LTE and a 5GNR radio component for performing communications according to 5GNR. In this case, the base station 102 may be able to operate as both an LTE base station and a 5G NR base station. When the base station 102 supports millimeter waves, the 5G NR radio component may be coupled to one or more millimeter wave antenna arrays or panels. As another possibility, the base station 102 may include a multimode radio component that can perform communications according to any one of a plurality of wireless communication technologies (e.g., 5G NR and LTE, 5G NR and Wi-Fi, LTE and Wi-Fi, LTE and UMTS, LTE and CDMA2000, UMTS and GSM, etc.).

[0086] As further described later herein, BS 102 may include hardware and software components for implementing or supporting specific implementations of the features described herein. The processor 404 of base station 102 may be configured to implement or support some or all of the embodiments of the methods described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively, processor 404 may be configured as a programmable hardware element such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit) or a combination thereof. Alternatively (or in addition thereto), in combination with one or more of other components 430, 432, 434, 440, 450, 460, 470, the processor 404 of base station 102 may be configured to implement or support some or all of the embodiments of the features described herein.

[0087] In addition, as described herein, the one or more processors 404 may include one or more processing elements. Thus, the processor 404 may include one or more integrated circuits (ICs) configured to perform the functions of the processor 404. In addition, each integrated circuit may include circuits (e.g., first circuits, second circuits, etc.) configured to perform the functions of the one or more processors 404.

[0088] In addition, as described herein, radio 430 may include one or more processing elements. Thus, radio 430 may include one or more integrated circuits (ICs) configured to perform the functions of radio 430. In addition, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of radio 430.

[0089] Exemplary Cellular Communications Circuitry

[0090] Figure 5 An exemplary simplified block diagram of a cellular communication circuit according to some aspects is shown. Note that Figure 5 The block diagram of the cellular communication circuitry of is only one example of possible cellular communication circuitry; other circuitry, such as circuitry that includes or is coupled to sufficient antennas for different RATs to perform uplink activities using separate antennas, or circuitry that includes or is coupled to fewer antennas, such as circuitry that can be shared between multiple RATs, is also possible. According to some aspects, the cellular communication circuitry 330 may be included in a communication device such as the communication device 106 described above. As described above, the communication device 106 may be a user equipment (UE) device, a mobile device or mobile station, a wireless device or wireless station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, notebook, or portable computing device), a tablet computer, and / or a combination of devices, among other devices.

[0091] The cellular communication circuitry 330 may be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as antennas 335a-b and 336 as shown. In some aspects, the cellular communication circuitry 330 may include dedicated receive chains for multiple RATs (including and / or coupled to (e.g., communicatively; directly or indirectly) dedicated processors and / or radio components (e.g., a first receive chain for LTE and a second receive chain for 5G NR). For example, Figure 5 As shown, the cellular communication circuit 330 may include a first modem 510 and a second modem 520. The first modem 510 may be configured for communication according to a first RAT (e.g., such as LTE or LTE-A), and the second modem 520 may be configured for communication according to a second RAT (e.g., such as 5G NR).

[0092] As shown, the first modem 510 may include one or more processors 512 and a memory 516 in communication with the processor 512. The modem 510 may communicate with a radio frequency (RF) front end 530. The RF front end 530 may include circuits for transmitting and receiving radio signals. For example, the RF front end 530 may include a receiving circuit (RX) 532 and a transmitting circuit (TX) 534. In some aspects, the receiving circuit 532 may communicate with a downlink (DL) front end 550, which may include circuits for receiving radio signals via an antenna 335a.

[0093] Similarly, the second modem 520 may include one or more processors 522 and a memory 526 in communication with the processor 522. The modem 520 may communicate with the RF front end 540. The RF front end 540 may include circuits for transmitting and receiving radio signals. For example, the RF front end 540 may include a receiving circuit 542 and a transmitting circuit 544. In some aspects, the receiving circuit 542 may communicate with the DL front end 560, which may include circuits for receiving radio signals via the antenna 335b.

[0094] In some aspects, the switch 570 may couple the transmit circuit 534 to an uplink (UL) front end 572. In addition, the switch 570 may couple the transmit circuit 544 to the UL front end 572. The UL front end 572 may include circuitry for transmitting radio signals via the antenna 336. Thus, when the cellular communication circuit 330 receives an instruction to transmit according to a first RAT (e.g., via a transmit chain including the transmit circuit 534 and the UL front end 572) supported by the first modem 510, the switch 570 may be switched to a first state that allows the first modem 510 to transmit signals according to the first RAT (e.g., via a transmit chain including the transmit circuit 534 and the UL front end 572). Similarly, when the cellular communication circuit 330 receives an instruction to transmit according to a second RAT (e.g., via a transmit chain including the transmit circuit 544 and the UL front end 572) supported by the second modem 520, the switch 570 may be switched to a second state that allows the second modem 520 to transmit signals according to the second RAT (e.g., via a transmit chain including the transmit circuit 544 and the UL front end 572).

[0095] As described herein, the first modem 510 and / or the second modem 520 may include hardware and software components for implementing any of the various features and techniques described herein. For example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium), the processors 512, 522 may be configured to implement part or all of the features described herein. Alternatively (or in addition), the processors 512, 522 may be configured as programmable hardware elements, such as an FPGA (field programmable gate array) or as an ASIC (application-specific integrated circuit). Alternatively (or in addition), in combination with one or more of the other components 530, 532, 534, 540, 542, 544, 550, 570, 572, 335, and 336, the processors 512, 522 may be configured to implement part or all of the features described herein.

[0096] In addition, as described herein, the processors 512, 522 may include one or more processing elements. Thus, the processors 512, 522 may include one or more integrated circuits (ICs) configured to perform the functions of the processors 512, 522. In addition, each integrated circuit may include circuits (e.g., first circuits, second circuits, etc.) configured to perform the functions of the processors 512, 522.

[0097] In some aspects, the cellular communication circuit 330 may include only one transmit / receive chain. For example, the cellular communication circuit 330 may not include the modem 520, the RF front end 540, the DL front end 560, and / or the antenna 335b. As another example, the cellular communication circuit 330 may not include the modem 510, the RF front end 530, the DL front end 550, and / or the antenna 335a. In some aspects, the cellular communication circuit 330 may also not include the switch 570, and the RF front end 530 or the RF front end 540 may communicate with the UL front end 572, for example, directly.

[0098] Exemplary Network Elements

[0099] Figure 6 An exemplary block diagram of a network element 600 according to some aspects is shown. According to some aspects, the network element 600 may implement one or more logical functions / entities of a cellular core network, such as a mobility management entity (MME), a serving gateway (S-GW), an access and management function (AMF), a session management function (SMF), a network slice quota management (NSQM) function, etc. It should be noted that Figure 6 The network element 600 is only one example of a possible network element 600. As shown, the core network element 600 may include one or more processors 604 that may execute program instructions of the core network element 600. The processor 604 may also be coupled to a memory management unit (MMU) 640 (which may be configured to receive addresses from the processor 604 and translate these addresses into locations in memory (e.g., memory 660 and read-only memory (ROM) 650)), or to other circuits or devices.

[0100] The network element 600 may include at least one network port 670. The network port 670 may be configured to couple to one or more base stations and / or other cellular network entities and / or devices. The network element 600 may communicate with a base station (e.g., eNB / gNB) and / or other network entities / devices by means of any of a variety of communication protocols and / or interfaces.

[0101] As further described later herein, network element 600 may include hardware and software components for implementing or supporting implementations of the features described herein. Processor 604 of core network element 600 may be configured to implement or support implementations of part or all of the methods described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively, processor 604 may be configured as a programmable hardware element such as an FPGA (field programmable gate array) or as an ASIC (application-specific integrated circuit) or a combination thereof.

[0102] 5G NR architecture with LTE

[0103] In some implementations, fifth generation (5G) wireless communications will initially be deployed concurrently with current wireless communications standards (e.g., LTE). For example, dual connectivity between LTE and 5G New Radio (5G NR or NR) has been specified as part of the initial deployment of NR. FIG. 7A to FIG. 7B As shown, the Evolved Packet Core (EPC) network 700 may continue to communicate with the current LTE base station (e.g., eNB 702). In addition, the eNB 702 may communicate with the 5G NR base station (e.g., base station 704), and data may be transferred between the EPC network 700 and the base station 704. Therefore, the EPC network 700 may be used (or reused), and the base station 704 may serve as additional capacity for the UE, for example, to provide the UE with increased downlink throughput. In other words, LTE may be used for control plane signaling, and NR may be used for user plane signaling. Therefore, LTE may be used to establish a connection with the network, and NR may be used for data services.

[0104] Figure 7B The proposed protocol stack for the eNB 702 and the base station 704 is shown. As shown, the eNB 702 may include a medium access control (MAC) layer 732 that interfaces with radio link control (RLC) layers 722A to 722B. The RLC layer 722A may also interface with a packet data convergence protocol (PDCP) layer 712A, and the RLC layer 722B may interface with the PDCP layer 712B. Similar to the dual connectivity specified in LTE-Advanced Release 12, the PDCP layer 712A may interface with the EPC network 700 via a master cell group (MCG) bearer, while the PDCP layer 712B may interface with the EPC network 700 via a separate bearer.

[0105] In addition, as shown, the base station 704 may include a MAC layer 734 that interfaces with the RLC layers 724A to 724B. The RLC layer 724A may interface with the PDCP layer 712B of the eNB 702 via an X2 interface for information exchange and / or coordination (e.g., UE scheduling) between the eNB 702 and the base station 704. In addition, the RLC layer 724B may interface with the PDCP layer 714. Similar to the dual connectivity specified in Advanced LTE Release 12, the PDCP layer 714 may interface with the EPC network 700 via a secondary cell group (SCG) bearer. Therefore, the eNB 702 may be considered as a master node (MeNB), and the base station 704 may be considered as a secondary node (SgNB). In some cases, the UE may be required to maintain a connection with both the MeNB and the SgNB. In such a case, the MeNB may be used to maintain a radio resource control (RRC) connection with the EPC, and the SgNB may be used for capacity (e.g., additional downlink and / or uplink throughput).

[0106] Figure 8 An example of a baseband processor architecture for a UE (e.g., UE 106) according to some aspects is shown. As described above, Figure 8 The baseband processor architecture 800 described in the figure can be implemented on one or more radio components (e.g., the radio components 329 and / or 330 described above) or modems (e.g., modems 510 and / or 520) as described above. As shown in the figure, the non-access layer 810 may include a 5G NAS 820 and a traditional NAS 850. The traditional NAS 850 may include a communication connection with a traditional access layer (AS) 870. The 5G NAS 820 may include a communication connection with a 5G AS 840 and a non-3GPP AS 830 and a Wi-Fi AS 832. The 5G NAS 820 may include functional entities associated with two access layers. Therefore, the 5G NAS 820 may include multiple 5G MM entities 826 and 828 and 5G session management (SM) entities 822 and 824. The traditional NAS 850 may include functional entities such as a short message service (SMS) entity 852, an evolved packet system (EPS) session management (ESM) entity 854, a session management (SM) entity 856, an EPS mobility management (EMM) entity 858, and a mobility management (MM) / GPRS mobility management (GMM) entity 860. In addition, the traditional AS 870 may include functional entities such as an LTE AS 872, a UMTS AS 874, and / or a GSM / GPRS 876.

[0107] Thus, the baseband processor architecture 800 allows for a common 5G-NAS for both 5G cellular and non-cellular (e.g., non-3GPP access). Note that, as shown, 5G MM can maintain a separate connection management and registration management state machine for each connection. In addition, a device (e.g., UE 106) can register to a single PLMN (e.g., 5GCN) using 5G cellular access as well as non-cellular access. In addition, a device can be in a connected state in one access and in an idle state in another access, or vice versa. Finally, there may be common 5G-MM procedures (e.g., registration, deregistration, identification, authentication, etc.) for both accesses.

[0108] Note that in various embodiments, one or more of the above elements may be configured to perform methods for implementing mechanisms for a multi-SIM capability signaling framework, for example, as further described herein.

[0109] Wireless Device Attachment / Registration

[0110] A communication device (e.g., a wireless device or UE) may be connected to one or more wireless elements through an attachment or registration process. For example, a wireless device connected using the LTE communication standard may perform an attachment procedure to connect to an eNB. Similarly, a wireless device connected via the NR or 5G communication standard may perform a registration procedure to connect to a gNB. The attachment / registration procedures of LTE and 5G NR are broadly similar. When the wireless device initially attempts to connect to a wireless network, such as after power-on or when the appropriate radio is turned on (such as when the airplane mode is turned off), the wireless device may perform a registration / attachment procedure. Initially, the wireless device may sense a physical medium for basic configuration and synchronization information related to the wireless node (such as time / frequency resources, root sequences, cyclic shifts, etc. that can be propagated through the wireless network). The wireless device may then transmit an initial registration / attachment request message to the wireless network, which may be referred to as msg1. Receiving msg1 by the wireless node may initiate a message exchange sequence between the wireless device and the wireless node to connect the wireless device to the wireless network. The message sequence helps to set up aspects of the connection, such as RRC connection, physical layer channels, encoding and decoding information, allocating resources, etc. In some wireless networks, such as 5G NR networks, the Registration Request procedure may be performed during the initial registration of the UE with the network, for mobility registration updates, or as part of periodic registration updates.

[0111] In some cases, the wireless connection between the wireless device and the wireless system may include multiple protocol layers. These layers may include an access layer (AS) and a non-access layer (NAS). The AS layer controls the connection between the wireless device and the wireless node. The AS layer includes radio link control (RLC), radio resource control (RRC) messages, medium access control (MAC), etc. The NAS layer can be used for communication between the wireless device and the core network, such as MME, S-GW, AMF, etc.

[0112] Multi-SIM (MUSIM) operation

[0113] A Subscriber Identity Module (SIM) card is an integrated circuit that stores data for identifying and authenticating users on some wireless networks. A SIM card may be a separate card placed in a wireless device, or a SIM card may be built into a wireless device (e.g., an embedded SIM card). Many wireless devices have the ability to utilize multiple SIM cards. Having multiple SIM cards allows a wireless device to potentially maintain multiple wireless connections with multiple wireless networks at the same time. For example, a wireless device with two SIM cards may be able to connect to two different wireless carriers substantially simultaneously. As another example, a wireless device with two SIM cards may be able to establish two separate connections with the same wireless carrier, each connection being associated with a separate account such as a work and personal account and a phone number. For clarity, the present disclosure will refer to operations with two SIMs (e.g., dual SIMs), but the concepts discussed herein are also applicable to operations with additional (e.g., three or more) SIM cards.

[0114] There are many different implementations of multiple SIMs (e.g., dual SIMs) supported on wireless devices. The most comprehensive implementation of dual SIMs may include separate transmit (TX) chains and receive (RX) chains for each SIM. Therefore, such a dual SIM wireless device will include two TX chains and two RX chains (wherein each SIM has a separate TX chain and a corresponding RX chain). Similarly, in some cases, the wireless device may be configured in a dual receive configuration, where each SIM will be configured with a separate RX chain, and the TX chain may be shared by the SIMs. Therefore, the radio component of the wireless device may include two RX chains and a single TX chain. A wireless device with two RX chains and a single TX chain may be able to receive two transmissions, such as from two separate wireless networks, and transmit to one wireless network at a time.

[0115] However, maintaining multiple TX / RX chains is relatively expensive in terms of the additional components and power consumption of including these components. In contrast, a dual SIM wireless device may be configured with a single RX chain and a single TX chain for two SIMs. Such a device may be able to receive transmissions from one wireless network at a time and transmit to one wireless network associated with one SIM instance at a time. Due to the presence of one RX chain, the wireless device tunes away from the first wireless network associated with the first SIM to transmit and receive data from the second wireless network associated with the second SIM. Dual SIM operation with a single TX / RX chain may be challenging because there is currently no mechanism to allow coordination between wireless networks accessed by each SIM. Therefore, if the wireless device is monitoring paging occasions for two wireless networks, there is no mechanism to ensure that the paging occasion for one wireless network does not occur simultaneously with the paging occasion for the other wireless network. If such paging occasions between wireless networks will occur for a wireless device with a single TX / RX chain, the wireless device may not be able to monitor the paging occasions of two wireless networks at the same time. What is needed is a framework for multi-SIM coordination.

[0116] Multi-SIM indication framework

[0117] According to aspects of the present disclosure, a wireless device may indicate its multi-SIM capabilities as part of a wireless device capabilities exchange (e.g., UE capabilities exchange). Based on this indication, the wireless network may then determine that the wireless device is capable of multi-SIM operation and take some action to help accommodate the MUSIM feature of this wireless device. For example, the wireless network may be able to adjust paging or discontinuous reception (DRX) scheduling of the wireless device or perform other network-side optimizations based on the indication. As an example of network-side optimization, the wireless network may be able to use a common context for the wireless device in the event that two SIM cards are being used on the same wireless network and / or reallocate radio or network resources to help avoid interference.

[0118] Figures 9 and 10 900 is a message sequence chart illustrating a multi-SIM indication according to aspects of the present disclosure. An additional procedure for LTE is illustrated in message sequence chart 900, which illustrates messages between a wireless device 902 and an LTE eNB 904. One or more wireless nodes may transmit and / or receive the illustrated messages, and processing of the messages may be performed by one or more network components, such as with reference to FIG. Fig. 7A and Figure 7BThose described. The radio of the wireless device is powered on and an attempt to connect 906 to the wireless network is initiated. For example, the wireless device may be powered on, airplane mode may be turned off, the radio may be powered on or when the current SIM configuration is modified (such as when a new physical SIM card is inserted), the eSIM profile is enabled, when the existing physical SIM card is removed, the eSIM profile is disabled, etc. In some cases, the wireless device may sense a physical medium for basic configuration and / or synchronization information for an LTE-based wireless network. For example, in LTE, the wireless device may tune to a particular radio frequency, search for a master information block (MIB) and a system information block (SIB), decode received blocks, generate msg1 based on the received blocks, and transmit msg1 to the wireless node to begin an initial attachment procedure with the wireless network to establish an RRC connection.

[0119] Once the RRC connection is established, the wireless device may transmit an RRC connection setup complete message to the wireless network along with an attach request 908. The attach request 908 may also include wireless device (UE) radio access capability information. The UE radio access capability information may be extended to include an indication of multi-SIM capabilities of the wireless device (e.g., maintaining a connection to a wireless network using more than one SIM card). The eNB 904 may respond to the attach request 908 with an attach accept message 910, and the wireless device 902 may respond to the attach accept message 910 with an attach complete message 912. It is worth noting that there may be multiple messages exchanged between the wireless device 902 and the eNB 904, between the attach request 908 and the attach accept message 910, and between the attach accept message 910 and the attach complete message 912, which may have been omitted from this discussion for clarity.

[0120] exist Fig.10 The registration procedure for 5G NR is shown in the message sequence chart 1050 of FIG. 1 , which shows messages between a wireless device 1052 and an NR gNB 1054. As with LTE, one or more wireless nodes may transmit and / or receive the messages shown, and processing of the messages may be performed by one or more network components, such as those described in reference to FIG. Fig. 7A and Figure 7BThose described. In NR, the radio of the wireless device is powered on and attempts to connect 1056 to the wireless network are initiated. For example, the wireless device may be powered on, airplane mode may be turned off, the radio may be powered on or when the current SIM configuration is modified (such as when a new physical SIM card is inserted), the eSIM profile is enabled, when the existing physical SIM card is removed, the eSIM profile is disabled, etc. In some cases, the wireless device may sense a physical medium for basic configuration and / or synchronization information for a 5G NR-based wireless network. For example, in 5G NR, the wireless device may tune to a particular radio frequency, select a random access preamble, and transmit the random access preamble to a wireless node to begin an initial connection procedure with the wireless network to establish an RRC connection.

[0121] Similar to LTE, once the RRC connection is established, the wireless device may transmit an RRC connection setup complete message to the wireless network along with a registration request 1058. The registration request 1058 may also include wireless device (UE) capability information, such as 5G mobility management (5GMM) information and UE security capability information. The UE capability information may also be extended to include an indication of the multi-SIM capability of the wireless device. The gNB 1054 may respond to the registration request 1058 with a registration accept message 1060, and the wireless device 1062 may respond to the registration accept message 1060 with a registration complete message 1062. It is worth noting that there may also be multiple messages exchanged between the wireless device 1062 and the eNB 1054, between the attach request 1058 and the attach accept message 1060, and between the attach accept message 1060 and the attach complete message 1062, which may have been omitted from this discussion for clarity.

[0122] As discussed above, in some cases, multi-SIM capability information may be transmitted from the wireless device to the wireless network as part of the NAS-level attachment / registration procedure. In some cases, the multi-SIM capability information is transmitted without being requested by the wireless network. In some cases, the multi-SIM capability information may be transmitted on demand. For example, instead of transmitting the multi-SIM capability information, each time the wireless device connects to the wireless network, it may be preferred to transmit the multi-SIM capability information in a situation where the wireless network is able to use such data. In this case, the wireless network may use a UE capability query message to request the multi-SIM capability information of the wireless device.

[0123] The UE Capability Query message allows the wireless network to query the wireless device about the capabilities of the wireless device, and may be sent, for example, after establishing a connection with the wireless device, when roaming across registration / tracking areas, during periodic updates, during other instances defined, for example, by the wireless network operator, etc. The query may query the wireless device about specific features. This query may be extended to include an indication that the wireless device is querying about the multi-SIM capabilities of the wireless device.

[0124] Fig.11 1100 is a message sequence diagram illustrating multi-SIM indication according to aspects of the present disclosure. As shown therein, a wireless device 1102 may perform an attach / registration procedure 1106 with a wireless network 1104. After the wireless device attaches / registers with the wireless network via an eNB / gNB, the wireless network may transmit a wireless device capability query 1108 to the wireless device 1102 via AS messaging. The wireless device capability query 1108 may include a request for whether the wireless device has multi-SIM capabilities. The wireless device may respond with a wireless device capability information response message 1110 that may include an indication of the multi-SIM capabilities of the wireless device.

[0125] Multi-SIM capability information

[0126] In addition to indicating that the wireless device supports multiple SIMs, the wireless device may include additional details about the multiple SIM capabilities of the wireless device. These additional details may be included with the attach / registration request or the wireless device capability information response. In some cases, the additional details may include whether the wireless device supports single receive (SR) mode or dual receive (DR) mode. SR mode may correspond to a wireless device with a single RX chain, while DR receive mode may correspond to a wireless device with two RX chains.

[0127] In addition, the wireless device may indicate whether the wireless device supports dynamically switching between SR mode and DR mode. For example, dynamic SR / DR mode switching may help the wireless device deal with interference issues such as those that may occur for overlapping frequency ranges. As a more detailed example, a particular NR band and LTE band overlap, such as LTE Band 1 and NR Band 1. If the wireless device is configured with such overlapping bands and positioned so that the wireless device has a very strong signal on, for example, LTE Band 1, but has a substantially weaker signal on NR Band 1, the wireless device may abandon DR mode operation to SR mode due to interference between the LTE signal and the NR signal, and resume DR mode operation when the interference is reduced. Similarly, in some cases, the wireless device may also indicate whether the wireless device supports a single transmit mode, a dual transmit mode, or whether the wireless device supports dynamic switching between a single transmit mode and a dual transmit mode.

[0128] The additional information may also include an indication of concurrent connection limits for the wireless device. In some cases, the wireless device may be limited to the types of wireless networks to which the wireless device can be connected simultaneously. For example, the wireless device may be able to connect to LTE only on two SIM cards, and then the wireless device may indicate that the wireless device supports LTE / LTE. Similarly, the wireless device may indicate that the wireless device supports one 5G NR connection on one SIM and LTE on another SIM, supports 5G NR on two SIMs, or supports LTE / NR on one or both SIMs. Such information may be used by the wireless network to help optimize radio resource allocation and scheduling, for example to avoid specific bands. As an example, if the first wireless network knows that a wireless device connected to the first wireless network via LTE supports LTE / NR, and the NR deployment near the location of the wireless device uses a specific frequency band that overlaps with a portion of the LTE frequency band, the first wireless network may move the wireless device to avoid the specific frequency band.

[0129] In some cases, the additional information may also include an indication of a data preference between SIM cards. For example, a wireless device may include two SIM cards associated with two different accounts, where the price of data on the first SIM is less than the price of data on the second SIM. In some examples, the wireless device may indicate a data preference for the first SIM. Such information may help the wireless network adjust the connection with the wireless device. For example, if the wireless network knows that the wireless network is not preferred for data, the wireless network may be able to adjust radio resource allocation and scheduling to help optimize the wireless device for non-data related paging such as phone calls, text messaging, etc.

[0130] In some cases, the additional information may also include an indication of whether the other SIM is intra-PLMN or inter-PLMN. For example, where the two SIMs are from different wireless network providers, the additional information may include an indication that the dual SIM configuration is inter-PLMN. By indicating that the other SIM is inter-PLMN without indicating a specific other provider, a measure of user privacy may be maintained. The indication that the other SIM is intra-PLMN may be helpful to the wireless network because the indication may allow the wireless network to adjust radio resource allocation and scheduling to help optimize the wireless device, for example to reduce battery consumption by adjusting paging scheduling to maximize sleep time.

[0131] Multi-SIM wireless device assistance information

[0132] In multi-SIM operation, a specific problem of wireless network invisibility may occur. For example, if a wireless device cannot simultaneously receive information from each wireless network to which the wireless device is connected, the wireless device may tune away from the first wireless network in order to receive data on a second wireless network. Generally speaking, this tune away is performed by the wireless device without explicitly notifying either wireless network through a signaling message. This tune away may be problematic if the wireless device is scheduled to monitor paging occasions on two wireless networks simultaneously, where these paging occasions overlap completely or partially in the frequency domain and / or time domain. This situation may be referred to as a paging collision between wireless networks. As another example, as discussed above, when a wireless device experiences interference between a frequency band configured for a first SIM and a frequency band configured for a second SIM, the wireless device may experience a band conflict.

[0133] According to aspects of the present disclosure, a mechanism may be provided by which a wireless device may notify a wireless network about conditions related to multi-SIM operation and request changes to resolve such conditions. For example, a wireless device may detect a multi-SIM related problem, determine a solution to the multi-SIM related problem, and transmit a multi-SIM wireless device assistance information message to the wireless network. The multi-SIM wireless device assistance information message may include information intended to help resolve the detected multi-SIM related problem. As an example, the wireless device may include a request to reconfigure the paging occasions of the wireless device to help resolve paging collisions.

[0134] In some cases, the wireless device may include an indication of a paging collision and a request to reconfigure these paging occasions of the wireless device in a multi-SIM wireless device assistance information message. The paging occasion may be based on an identifier, such as an assigned UE ID or a 5G service temporary mobile user identity, and the wireless device may request a new assigned identifier and thus reconfigure the paging occasion. In some cases, the wireless device may request a dynamic offset to the paging occasion to adjust the length of the paging occasion. In some cases, the wireless device may request the wireless network to repeat paging on multiple consecutive paging occasions in a predetermined manner. By repeating the paging, the wireless device has another opportunity to receive the paging, even if there is a paging collision when the paging is first sent. In the case of the PLMN, the paging collision can be resolved by requesting unified paging for two SIMs by means of combined paging and using a single SIM to paging messages. In other cases, for the PLMN situation, the wireless device may request two connections with the wireless network to utilize the same identifier so that the paging occasions for the two SIMs occur at the same time, but during such paging occasions, the incoming paging message is addressed to a specific SIM instance.

[0135] In some cases, the wireless device may include in the Multi-SIM Wireless Device Assistance Information message an indication that the wireless device is experiencing a band conflict between multiple wireless networks. Then, in response, the wireless network may attempt to resolve the band conflict, for example, by redirecting the wireless device to a different cell, performing a handover, adjusting the frequency band of the wireless device, etc. In some cases, the wireless device may include in the Multi-SIM Wireless Device Assistance Information message, for example, a suggested band or handover target to a wireless network.

[0136] In some cases, the multi-SIM wireless device assistance information message may include a request for a preferred RRC state change for the wireless device. For example, if the wireless device needs to tune away from a first wireless network in order to perform operations on a second wireless network, the first wireless network may request to change the RRC state to an RRC inactive or RRC idle state. In some cases, the RRC inactive state will retain context information about the wireless network and may transition back to the RRC connected state more quickly.

[0137] The multi-SIM wireless device assistance information message may also be used by the wireless device to help optimize multi-SIM operation. For example, the wireless device may attempt to reconfigure the paging occasions of the wireless network to align the paging occasions (between wireless networks) one after another to try to maximize the amount of time the wireless device may be able to enter a sleep or lower power state.

[0138] Fig.12 1200 is a message sequence diagram illustrating multi-SIM wireless device assistance information according to aspects of the present disclosure. Multi-SIM wireless device assistance information may be a signaling framework that may be used to help resolve multi-SIM related issues that may occur (such as paging collisions or band conflicts) and to help optimize multi-SIM scheduling configurations. Multi-SIM wireless device assistance information signaling may be performed at the RRC level to allow flexibility. In some cases, similar signaling may be performed using MAC-CE or DCI signaling. In the message sequence diagram 1200, a wireless device 1202 may be connected to a wireless network 1204 and be in a connected mode. The wireless device 1202 previously performed a capability exchange 1206 with the wireless network 1104, for example, during an attach / registration procedure or a UE capability query procedure. For example, when connected to the wireless network 1204, the wireless device 1202 may also be configured with radio resources, DRX monitoring opportunities, etc.

[0139] After determining that there is a multi-SIM related problem to be resolved, the wireless device 1202 may generate a multi-SIM wireless device assistance information message 1208 and transmit the multi-SIM wireless device assistance information message to the wireless network 1204. When the wireless device transmits the multi-SIM wireless device assistance information message 1208, the wireless device may also start 1210 a prohibit timer 1212 (e.g., a MUSIM UE assistance information (MUSIM UAI) prohibit timer). The prohibit timer 1212 may be a timer that may be used to limit the frequency of sending assistance information messages to the wireless network 1204 to help reduce the over-the-air signaling load on the wireless network. The prohibit timer 1212 may end 1214 after a certain amount of time has passed, after a maximum retry counter value is satisfied, and / or, as in this example, in the event that the wireless network sends an RRC reconfiguration message 1216 to the wireless device 1202. In some cases, the RRC reconfiguration message 1216 may reconfigure the wireless device 1202 based on the information received in the multi-SIM wireless device assistance information message 1208.

[0140] Fig.13 1300 is a message sequence diagram illustrating multi-SIM wireless device assistance information according to aspects of the present disclosure. In some cases, the wireless device 1302 may not receive a response to the first multi-SIM wireless device assistance information message 1308 from the wireless network 1304. In some cases, the wireless network 1304 may not be responsible for responding to the wireless device or reconfiguring the wireless device. After the prohibit timer 1312 expires, the wireless device 1302 may transmit a second multi-SIM wireless device assistance information message 1318 to the wireless network 1304. Each multi-SIM wireless device assistance information message may have a separate associated prohibit timer, and thus a second prohibit timer 1320 associated with the second multi-SIM wireless device assistance information message 1318 may be started when the second multi-SIM wireless device assistance information message 1318 is sent. In this example, an RRC reconfiguration message 1322 may be received and the second prohibit timer 1320 is stopped. In some cases, there may be a retry counter that may be incremented with each multi-SIM wireless device assistance information message sent. Once the retry counter value meets the maximum retry counter value, the wireless device may stop sending the multi-SIM wireless device assistance information message for a certain duration. In some cases, the duration may be the duration that the wireless device is in connected mode, and the maximum retry counter may be reset, for example, in the event that the wireless device enters an idle or inactive mode and then re-enters a connected mode with a wireless network. In some cases, the maximum retry counter may be configured, for example, by the network, and / or the wireless device may be pre-configured with the maximum retry counter.

[0141] Fig.1414 is a message sequence chart 1400 illustrating multi-SIM wireless device assistance information utilizing multiple wireless networks according to aspects of the present disclosure. In the message sequence chart 1400, a wireless device 1402 is connected to a first wireless network 1404 and a second wireless network 1406. In this example, the wireless device may first attempt to obtain reconfiguration from the first wireless network, determine that the first wireless network has not responded, and then attempt to obtain reconfiguration from the second wireless network. As indicated above, the first wireless network 1404 is not responsible for responding to or reconfiguring the wireless device in response to the first multi-SIM wireless device assistance information message 1408 from the wireless device 1402. To increase the likelihood that the wireless device 1402 can obtain a solution to the multi-SIM related problem, the wireless device 1402 may wait until a first inhibit timer 1410 associated with the first multi-SIM wireless device assistance information message 1408 expires without a response or reconfiguration message from the first wireless network 1404. The wireless device 1404 may then transmit a second multi-SIM wireless device assistance information message 1412 to the second wireless network 1406 and set a second inhibit timer 1414. The second wireless network may then send an RRC reconfiguration message based on the second multi-SIM wireless device assistance information message 1412. In some cases, when attempting to reconfigure a particular parameter between two wireless networks, it may be most useful to sequentially attempt to obtain a reconfiguration from the first network, determining that the network has not responded before attempting the second wireless network. For example, if the wireless device detects a paging collision problem, the wireless device should not attempt to send the same multi-SIM wireless device assistance information message to two wireless networks in parallel that attempts to move the paging occasion to another time. Doing so may cause the two wireless networks to move their respective paging occasions to another time, thereby causing another paging collision problem. Therefore, if the wireless device is attempting to adjust a common parameter between two wireless networks, such as paging occasion times, the wireless device may better send the multi-SIM wireless device assistance information messages to the wireless networks sequentially one at a time.

[0142] In some cases, a multi-SIM wireless device assistance information message may be sent to multiple wireless networks in parallel. If the wireless device attempts to adjust different parameters of the wireless networks, the wireless networks will have less chance of conflicting reconfigurations. For example, if the wireless device detects a paging collision problem, the wireless device may attempt to request a dynamic offset to the configured paging occasions so that the first wireless network repeats paging on multiple consecutive paging occasions while requesting the second wireless network to redefine the paging occasion for another time. In this case, if either or both wireless networks reconfigure the wireless device according to the request, there is a lower chance of conflicting changes between the wireless networks because changes to different parameters (e.g., increasing the repetition of paging and adjusting the paging occasion timing) are being requested in each multi-SIM wireless device assistance information message.

[0143] Fig.15 1500 is a message sequence diagram illustrating multi-SIM wireless device assistance information utilizing multiple wireless networks according to aspects of the present disclosure. In the message sequence diagram 1500, a wireless device 1502 is connected to a first wireless network 1504 and a second wireless network 1506. In this example, the wireless device may attempt to obtain reconfiguration from both wireless networks simultaneously. The wireless device 1502 may transmit a first multi-SIM wireless device assistance information message 1508 to the first wireless network 1504 and enable an associated first inhibit timer 1510. The wireless device 1502 may also transmit a second multi-SIM wireless device assistance information message 1512 to the second wireless network 1506 and enable an associated second inhibit timer 1514 before the first inhibit timer 1510 expires. In some cases, the reconfiguration being requested in the two multi-SIM wireless device assistance information messages is a non-conflicting change. In this example, the wireless device 1502 may then receive a first RRC reconfiguration message 1516 from the first wireless network 1504 based on the first multi-SIM wireless device assistance information message 1508, and receive a second RRC reconfiguration message 1518 from the second wireless network 1506 based on the second multi-SIM wireless device assistance information message 1512. Upon receiving the respective RRC reconfiguration messages, the corresponding inhibit timers are stopped. The wireless device may then implement reconfiguration.

[0144] In some cases, a multi-SIM wireless device assistance information message may be used to request an incremental configuration change to a previously requested configuration. For example, a specific requested configuration in a multi-SIM wireless device assistance information message may imply that the previously requested configuration is still valid. As a more detailed example, a wireless device may transmit a first multi-SIM wireless device assistance information message to a first wireless network, the first multi-SIM wireless device assistance information message including a request to reconfigure a paging occasion based on an offset. The first wireless network may respond with an RRC reconfiguration message that reconfigures the paging occasion based on an offset as requested by the wireless device. The wireless device may then transmit a second multi-SIM wireless device assistance information message requesting a transition to RRC inactive mode, so that the wireless device may tune away from the first wireless network and perform operations on the second wireless network. The wireless device may then tune back to the first wireless network and transmit a third multi-SIM wireless device assistance information message requesting a transition back to RRC active mode to the first wireless network without any other reconfiguration request. Since there are no other reconfiguration requests, the first wireless network may interpret the third Multi-SIM wireless device assistance information message as implying that the wireless device can accept the previous configuration and the request to transition to RRC inactive mode and then back to RRC active mode is a one-time or temporary change. The first wireless network may then send an RRC reconfiguration message back to the wireless device that switches the wireless device back to RRC active mode with the previous configuration, where the paging occasion is based on the previously requested offset. In some cases, the Multi-SIM wireless device assistance information message may indicate that the requested change is an incremental signal change.

[0145] Fig.16A flow chart 1600 is provided showing a technique for multi-SIM indication according to aspects of the present disclosure. At block 1602, a wireless device determines that the wireless device supports establishing multiple connections to a wireless network using multiple subscriber identity module (SIM) cards. For example, the wireless device may be configured to support multiple SIM cards. The SIM card may be a separate card or an embedded SIM card that may be placed in the wireless device. At block 1604, the wireless device generates a multi-SIM capability message. In some cases, the multi-SIM capability message may indicate one or more types of wireless networks that support each SIM card. In some cases, the multi-SIM capability message includes an indication that the wireless device can connect to multiple different wireless networks. In some cases, generating the multi-SIM capability message includes determining whether the wireless device can simultaneously receive a first transmission associated with a first SIM card and a second transmission associated with a second SIM card, and generating an indication for the multi-SIM capability message whether the wireless device can simultaneously receive the first transmission and the second transmission. For example, the wireless device can simultaneously connect to multiple wireless carriers, and the wireless device may indicate such capability to the wireless network. In some cases, the multi-SIM capability message includes an indication that the wireless device can connect to the same wireless network multiple times. In some cases, the wireless device may indicate a reception mode supported by the wireless device. In some cases, the wireless device may indicate a data preference for one of the SIM cards.

[0146] At block 1606, the wireless device transmits a multi-SIM capability message to the wireless network. In some cases, the multi-SIM capability message is transmitted to the first wireless network in an attach request message. In some cases, the multi-SIM capability message is transmitted to the first wireless network in the form of a registration request message. In some cases, the wireless device may receive a capability query from the first wireless network, the capability query including an indication asking for multi-SIM capabilities of the wireless device. The wireless device may transmit the multi-SIM capability message in response to the capabilities queried from the first wireless network. In some cases, the wireless device may receive a connection configuration from the wireless network based on the multi-SIM capability message.

[0147] Optionally, at block 1608, the wireless device may connect to a first wireless network based on the first SIM card. Optionally, at block 1610, the wireless device may connect to a second wireless network based on the second SIM card. Optionally, at block 1612, the wireless device may determine that a multi-SIM related problem has occurred. Examples of multi-SIM related problems may include paging collisions, band collisions, possible multi-SIM operation optimizations, multi-SIM suspend / resume, etc. In some cases, determining that a multi-SIM related problem has occurred includes determining that a first paging occasion associated with the first wireless network overlaps with a second paging occasion associated with the second wireless network. In some cases, determining that a multi-SIM related problem has occurred includes determining that a first frequency band associated with the first wireless network overlaps with a second frequency band associated with the second wireless network.

[0148] Optionally, at block 1614, the wireless device may transmit a first wireless device assistance information message to the first wireless network, the first wireless device assistance information message being based on the determined multi-SIM related problem. For example, the wireless device may detect that a paging collision has occurred and determine a potential solution to the paging collision, such as moving one or more paging occasions. The wireless device may generate the first wireless device assistance information message including an indication of the multi-SIM related problem. In some cases, the first wireless device assistance information message may include a potential solution, such as a suggested reconfiguration.

[0149] In some cases, the wireless device may start a first inhibit timer associated with the first wireless device assistance information message. In some cases, the wireless device may also receive a radio resource control (RRC) reconfiguration message from the first wireless network, stop the first inhibit timer, and reconfigure the connection with the first wireless network based on the RRC reconfiguration message. In some cases, the wireless device may determine that the first inhibit timer has expired. For example, if the RRC reconfiguration message is not received, the inhibit timer may expire at the end of the timer. The wireless device may transmit a second wireless device assistance information message to the first wireless network. The wireless device may also repeat the steps of determining that the first inhibit timer has expired and transmitting the second wireless device assistance information message until a maximum number of retries is reached. For example, the wireless device may transmit another wireless device assistance information message to the wireless network. This other wireless device assistance information message may be the same as the initial wireless device assistance message, or different from the initial wireless device assistance message. Additional wireless device assistance messages may be transmitted until the maximum number of retries is reached. In some cases, the wireless device may also determine that the first inhibit timer has expired, transmit a third wireless device assistance information message to the second wireless network, and start a second inhibit timer associated with the third wireless device assistance information message. The wireless device may also receive a radio resource control (RRC) reconfiguration message from the second wireless network, stop the second inhibit timer, and reconfigure the connection with the second wireless network based on the RRC reconfiguration message.

[0150] Fig.17 A flow chart 1700 is provided showing a technique for multi-SIM indication according to aspects of the present disclosure. At block 1702, a wireless system may receive a multi-SIM capability message from a wireless device. In some cases, the multi-SIM capability message is received by the wireless system in an attach request message. In some cases, the multi-SIM capability message is received by the wireless system in a registration request message. In some cases, the wireless system transmits a capability query requesting multi-SIM capability information to the wireless device, and receives a capability response message from the wireless device in response to the capability query. In some cases, the multi-SIM capability message includes an indication that the wireless device may simultaneously receive a first transmission associated with a first SIM card and a second transmission associated with a second SIM card. In some cases, the multi-SIM capability message includes an indication of a type of wireless network supported by each SIM card. In some cases, the multi-SIM capability message includes an indication that the wireless device may connect to a plurality of different wireless networks.

[0151] At block 1704, the wireless system may determine a connection configuration for the wireless device based on the received multi-SIM capability message. For example, the wireless system may adjust radio resources to avoid potential band interference with other wireless networks, adjust paging occasions, determine that the wireless device has connected to the wireless system multiple times and adjust paging occasions based on this determination, or adjust another connection parameter based on the received multi-SIM capability message.

[0152] At block 1706, the wireless system transmits an indication of the configured connection to the wireless device. In some cases, the indication may be transmitted in an RRC reconfiguration message. Optionally, at block 1708, the wireless system may receive a first wireless device assistance information message from the wireless device. For example, the wireless device may detect that a paging collision has occurred and determine a potential solution to the paging collision, such as moving one or more paging occasions. The wireless device may send the first wireless device assistance information message including an indication of a multi-SIM related issue. In some cases, the first wireless device assistance information message may include, for example, a potential solution as a suggested reconfiguration.

[0153] Optionally, the wireless system determines whether to implement the reconfiguration request in the first wireless device assistance information message at block 1708. For example, the wireless system may evaluate the proposed reconfiguration and determine whether the proposed reconfiguration is possible based on the schedule of the first wireless device and other devices connected to the wireless system.

[0154] Optionally, at block 1710, the wireless system transmits a radio resource control (RRC) reconfiguration message to the wireless device based on determining whether to implement the reconfiguration request. For example, if the proposed reconfiguration is possible, the wireless system may send the RRC reconfiguration message to the wireless device to reconfigure the connection of the wireless device based on the proposed reconfiguration. In some cases, such as if the proposed reconfiguration is not possible, the system is too busy, etc., the wireless system may discard the first wireless device assistance information message and not respond to the wireless device.

[0155] Example

[0156] In the following sections, additional exemplary aspects are provided.

[0157] According to embodiment 1, a wireless device includes: an antenna; a radio component, the radio component is operably coupled to the antenna; and a processor, the processor is operably coupled to the radio component; wherein the wireless device is configured to: determine that the wireless device supports the use of multiple subscriber identity module (SIM) cards to establish multiple connections with a wireless network; generate a multi-SIM capability message; and transmit the multi-SIM capability message to a first wireless network.

[0158] Embodiment 2 includes the subject matter of embodiment 1, wherein the multiple SIM capability message is transmitted to the first wireless network in an attach request message.

[0159] Embodiment 3 includes the subject matter of embodiment 1, wherein the multiple SIM capability message is transmitted to the first wireless network in a registration request message.

[0160] Embodiment 4 includes the subject matter of Embodiment 1, wherein the multi-SIM capability message is transmitted to the first wireless network in a capability report to the first wireless network.

[0161] Embodiment 5 includes the subject matter of embodiment 4, wherein the wireless device is further configured to: receive a capability query from the first wireless network, and wherein the capability report is transmitted in response to the capability query.

[0162] Embodiment 6 includes the subject matter described in Embodiment 1, wherein the wireless device is configured to: generate the multi-SIM capability message by determining whether the wireless device is capable of simultaneously receiving a first transmission associated with a first SIM card and a second transmission associated with a second SIM card, and wherein the multi-SIM capability message includes an indication of whether the wireless device is capable of simultaneously receiving the first transmission and the second transmission.

[0163] Embodiment 7 includes the subject matter of embodiment 1, wherein the multi-SIM capability message includes an indication of one or more types of wireless networks supported by each SIM card.

[0164] Embodiment 8 includes the subject matter of embodiment 1, wherein the multi-SIM capability message includes an indication that the wireless device is capable of connecting to a plurality of different wireless networks.

[0165] Embodiment 9 includes the subject matter described in Embodiment 1, wherein the wireless device is further configured to: connect to the first wireless network based on the first SIM card; connect to the second wireless network based on the second SIM card; determine that a multi-SIM related problem has occurred; and transmit a first wireless device assistance information message to the first wireless network, the first wireless device assistance information message being based on the determined multi-SIM related problem.

[0166] Embodiment 10 includes the subject matter of embodiment 9, wherein the wireless device is further configured to: start a first inhibit timer associated with the first wireless device assistance information message.

[0167] Embodiment 11 includes the subject matter described in Embodiment 10, wherein the wireless device is further configured to: receive a radio resource control (RRC) reconfiguration message from the first wireless network; stop the first prohibition timer; and reconfigure the connection with the first wireless network based on the RRC reconfiguration message.

[0168] Embodiment 12 includes the subject matter of embodiment 10, wherein the wireless device is further configured to: determine that the first inhibit timer has expired; and transmit a second wireless device assistance information message to the first wireless network.

[0169] Embodiment 13 includes the subject matter of embodiment 12, wherein the wireless device is further configured to repeat the steps of determining that the first inhibit timer has expired and transmitting the second wireless device assistance information message until a maximum number of retries is reached.

[0170] Embodiment 14 includes the subject matter described in Embodiment 10, wherein the wireless device is further configured to: determine that the first prohibit timer has expired; transmit a third wireless device assistance information message to the second wireless network; and start a second prohibit timer associated with the third wireless device assistance information message.

[0171] Embodiment 15 includes the subject matter described in Embodiment 14, wherein the wireless device is further configured to: receive a radio resource control (RRC) reconfiguration message from the second wireless network; stop the second prohibition timer; and reconfigure the connection with the second wireless network based on the RRC reconfiguration message.

[0172] Embodiment 16 includes the subject matter of embodiment 9, wherein determining that a multi-SIM related issue has occurred comprises determining that a first paging occasion associated with the first wireless network overlaps with a second paging occasion associated with the second wireless network.

[0173] Embodiment 17 includes the subject matter of embodiment 9, wherein determining that a multi-SIM related issue has occurred comprises determining that a first frequency band associated with the first wireless network and a second frequency band associated with the second wireless network overlap.

[0174] Embodiment 18 includes the subject matter described in Embodiment 9, wherein the wireless device is further configured to: receive a first radio resource control (RRC) reconfiguration message from the first wireless network based on the first wireless device assistance information message; transmit a second wireless device assistance information message to the first wireless network, the second wireless device assistance information message including an incremental configuration change; receive a second RRC reconfiguration message from the first wireless network based on the second wireless device assistance information message; transmit a third wireless device assistance information message to the first wireless network, the third wireless device assistance information message including an indication to stop the incremental configuration change; and receive a third RRC reconfiguration message from the first wireless network based on the first wireless device assistance information message.

[0175] Embodiment 19 includes the subject matter of embodiment 1, wherein the multiple SIM capability message includes an indication that the wireless device is capable of connecting to the same wireless network multiple times.

[0176] According to embodiment 20, a wireless system comprises: an antenna; a radio component, which is operably coupled to the antenna; and a processor, which is operably coupled to the radio component; wherein the wireless system is configured to: receive a multi-SIM capability message from a wireless device; determine a connection configuration of the wireless device based on the received multi-SIM capability message; and transmit an indication of the configured connection to the wireless device.

[0177] Embodiment 21 includes the subject matter of embodiment 20, wherein the multiple SIM capability message is received by the wireless system in an attach request message.

[0178] Embodiment 22 includes the subject matter of embodiment 20, wherein the multiple SIM capability message is received by the wireless system in a registration request message.

[0179] Embodiment 23 includes the subject matter of embodiment 20, wherein the multi-SIM capability message is received by the wireless system in a capability report.

[0180] Embodiment 24 includes the subject matter of Embodiment 23, wherein the wireless system is further configured to: transmit a capability query to the wireless device requesting multi-SIM capability information; and wherein the capability report is received in response to the capability query.

[0181] Embodiment 25 includes the subject matter of embodiment 20, wherein the multiple SIM capability message includes an indication that the wireless device is capable of simultaneously receiving a first transmission associated with a first SIM card and a second transmission associated with a second SIM card.

[0182] Embodiment 26 includes the subject matter of embodiment 20, wherein the multi-SIM capabilities message includes an indication of a type of wireless network supported by each SIM card.

[0183] Embodiment 27 includes the subject matter of embodiment 20, wherein the multi-SIM capability message includes an indication that the wireless device is capable of connecting to a plurality of different wireless networks.

[0184] Embodiment 28 includes the subject matter of Embodiment 20, wherein the wireless system is further configured to: receive a first wireless device assistance information message from the wireless device.

[0185] Embodiment 29 includes the subject matter described in Embodiment 28, wherein the wireless system is further configured to: determine whether a reconfiguration request is implemented in the first wireless device auxiliary information message; and transmit a radio resource control (RRC) reconfiguration message to the wireless device based on the determination whether the reconfiguration request is implemented.

[0186] Embodiment 30 includes the subject matter described in Embodiment 29, wherein the wireless system is further configured to: receive a second wireless device assistance information message from the wireless device, the second wireless device assistance information message including an incremental configuration change; transmit a second RRC reconfiguration message to the wireless device based on the second wireless device assistance information message; receive a third wireless device assistance information message from the wireless device, the third wireless device assistance information message including an indication to stop the incremental configuration change; and transmit a third RRC reconfiguration message to the wireless device based on the first wireless device assistance information message.

[0187] According to embodiment 31, a method, the method comprising any action or combination of actions substantially as described herein in the detailed description.

[0188] According to Example 32, a method is provided as substantially described herein with reference to each or any combination of the figures included herein or with reference to each or any combination of the paragraphs in the detailed description.

[0189] According to embodiment 33, a wireless device is configured to perform any action or combination of actions substantially as described herein in the detailed description, as included in the wireless device.

[0190] According to embodiment 34, a wireless station is configured to perform any action or combination of actions as substantially described herein in a specific embodiment included in the wireless station.

[0191] According to embodiment 35, a non-transitory computer-readable medium stores instructions that, when executed, cause the performance of any action or combination of actions as substantially described herein in the detailed description.

[0192] According to embodiment 36, an integrated circuit is configured to perform any action or combination of actions as substantially described herein in the detailed description.

[0193] Yet another exemplary aspect may include a method comprising: performing, by a device, any or all of the foregoing embodiments.

[0194] Still another exemplary aspect may include a non-transitory computer-accessible storage medium including program instructions that, when executed at a device, cause the device to implement any or all portions of any of the aforementioned embodiments.

[0195] Yet another exemplary aspect may include a computer program comprising instructions for performing any or all of any of the aforementioned embodiments.

[0196] Yet another exemplary aspect may include an apparatus including means for performing any or all of the elements of any of the aforementioned embodiments.

[0197] Yet another exemplary aspect may include an apparatus comprising a processor configured to cause the device to perform any or all elements of any of the aforementioned embodiments.

[0198] It is understood that the use of personally identifiable information should be subject to privacy policies and practices that are generally recognized to meet or exceed industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of the authorized use should be clearly stated to users.

[0199] Aspects of the present disclosure can be implemented in any of a variety of forms. For example, some aspects can be implemented as computer-implemented methods, computer-readable storage media, or computer systems. Other aspects can be implemented using one or more custom-designed hardware devices such as ASICs. Other aspects can be implemented using one or more programmable hardware elements such as FPGAs.

[0200] In some aspects, a non-transitory computer-readable storage medium may be configured such that it stores program instructions and / or data, wherein if the program instructions are executed by a computer system, the computer system is caused to perform a method, such as any of the method aspects described herein, or any combination of the method aspects described herein, or any subset of any method aspects described herein, or any combination of such subsets.

[0201] In some aspects, a device (e.g., UE 106, BS 102, network element 600) may be configured to include a processor (or a group of processors) and a memory medium, wherein the memory medium stores program instructions, wherein the processor is configured to read and execute the program instructions from the memory medium, wherein the program instructions are executable to implement any of the various method aspects described herein (or any combination of the method aspects described herein, or any subset of any method aspects of the method aspects described herein, or any combination of such subsets). The device may be implemented in any of various forms.

[0202] Although the above aspects have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated. It is intended that the following claims be interpreted to encompass all such variations and modifications.

Claims

1. A wireless device, comprising: antenna; a radio operably coupled to the antenna; as well as a processor operatively coupled to the radio; The wireless device is configured to: Determining that the wireless device supports using multiple subscriber identity module (SIM) cards to establish multiple connections with a wireless network; Generate a multi-SIM capability message; transmitting the multi-SIM capability message to a first wireless network; connecting to the first wireless network based on the first SIM card; connecting to a second wireless network based on the second SIM card; Determine that a multi-SIM related issue has occurred; transmitting a first wireless device assistance information message to the first wireless network, the first wireless device assistance information message being based on the determined multi-SIM related issue; receiving a first radio resource control (RRC) reconfiguration message from the first wireless network based on the first wireless device assistance information message; transmitting a second wireless device assistance information message to the first wireless network, the second wireless device assistance information message comprising an incremental configuration change; receiving a second RRC reconfiguration message from the first wireless network based on the second wireless device assistance information message; transmitting a third wireless device assistance information message to the first wireless network, the third wireless device assistance information message including an indication to stop the incremental configuration change; as well as A third RRC reconfiguration message is received from the first wireless network based on the first wireless device assistance information message. 2 . The wireless device of claim 1 , wherein the multiple SIM capability message is transmitted to the first wireless network in an attach request message. 3 . The wireless device of claim 1 , wherein the multiple SIM capability message is transmitted to the first wireless network in a registration request message. 4 . The wireless device of claim 1 , wherein the multi-SIM capability message is transmitted to the first wireless network in a capability report to the first wireless network.

5. The wireless device of claim 4, wherein the wireless device is further configured to receive a capability query from the first wireless network, and wherein the capability report is transmitted in response to the capability query.

6. The wireless device of claim 1 , wherein the wireless device is configured to generate the multi-SIM capability message by determining whether the wireless device is capable of simultaneously receiving a first transmission associated with a first SIM card and a second transmission associated with a second SIM card, and wherein the multi-SIM capability message includes an indication of whether the wireless device is capable of simultaneously receiving the first transmission and the second transmission.

7. The wireless device of claim 1, wherein the multi-SIM capability message includes an indication of one or more types of wireless networks supported by each SIM card.

8. The wireless device of claim 1, wherein the multi-SIM capability message includes an indication that the wireless device is capable of connecting to a plurality of different wireless networks.

9. The wireless device of claim 1, wherein the wireless device is further configured to start a first inhibit timer associated with the first wireless device assistance information message.

10. The wireless device of claim 9, wherein the wireless device is further configured to: receiving a radio resource control (RRC) reconfiguration message from the first wireless network; stopping the first inhibit timer; and Reconfigure the connection with the first wireless network based on the RRC reconfiguration message.

11. The wireless device of claim 9, wherein the wireless device is further configured to: determining that the first inhibit timer has expired; and A second wireless device assistance information message is transmitted to the first wireless network.

12. The wireless device of claim 11, wherein the wireless device is further configured to repeat the steps of determining that the first inhibit timer has expired and transmitting the second wireless device assistance information message until a maximum number of retries is reached.

13. The wireless device of claim 9, wherein the wireless device is further configured to: determining that the first inhibit timer has expired; transmitting a third wireless device assistance information message to the second wireless network; and A second inhibit timer associated with the third wireless device assistance information message is started.

14. The wireless device of claim 13, wherein the wireless device is further configured to: receiving a radio resource control (RRC) reconfiguration message from the second wireless network; stopping the second inhibit timer; and Reconfigure the connection with the second wireless network based on the RRC reconfiguration message.

15. The wireless device of claim 1 , wherein determining that a multiple SIM related issue has occurred comprises: It is determined that a first paging occasion associated with the first wireless network overlaps with a second paging occasion associated with the second wireless network.

16. The wireless device of claim 1 , wherein determining that a multiple SIM related issue has occurred comprises: It is determined that a first frequency band associated with the first wireless network overlaps with a second frequency band associated with the second wireless network.

17. The wireless device of claim 1, wherein the multiple SIM capability message includes an indication that the wireless device is capable of connecting to the same wireless network multiple times.

18. A wireless system, comprising: antenna; a radio operably coupled to the antenna; as well as a processor operatively coupled to the radio; The wireless system is configured as follows: receiving a multi-SIM capability message from the wireless device; determining a connection configuration of the wireless device based on the received multi-SIM capability message; transmitting an indication of the configured connection to the wireless device; receiving a first wireless device assistance information message from the wireless device; determining whether a reconfiguration request is implemented in the first wireless device assistance information message; transmitting a radio resource control (RRC) reconfiguration message to the wireless device based on the determination whether the reconfiguration request is fulfilled; receiving a second wireless device assistance information message from the wireless device, the second wireless device assistance information message comprising an incremental configuration change; transmitting a second RRC reconfiguration message to the wireless device based on the second wireless device assistance information message; receiving a third wireless device assistance information message from the wireless device, the third wireless device assistance information message comprising an indication to stop the incremental configuration change; as well as A third RRC reconfiguration message is transmitted to the wireless device based on the first wireless device assistance information message.

19. The wireless system of claim 18, wherein the multiple SIM capability message is received by the wireless system in an attach request message.

20. The wireless system of claim 18, wherein the multiple SIM capability message is received by the wireless system in a registration request message.

21. The wireless system of claim 18, wherein the multi-SIM capability message is received by the wireless system in a capability report.

22. The wireless system of claim 21, wherein the wireless system is further configured to: A capability query requesting multi-SIM capability information is transmitted to the wireless device; and wherein the capability report is received in response to the capability query.

23. The wireless system of claim 18, wherein the multiple SIM capability message includes an indication that the wireless device is capable of simultaneously receiving a first transmission associated with a first SIM card and a second transmission associated with a second SIM card.

24. The wireless system of claim 18, wherein the multi-SIM capability message includes an indication of the type of wireless network supported by each SIM card.

25. The wireless system of claim 18, wherein the multi-SIM capability message includes an indication that the wireless device is capable of connecting to a plurality of different wireless networks.

26. A method performed by a wireless device, the method comprising: Determining that the wireless device supports using multiple subscriber identity module (SIM) cards to establish multiple connections with a wireless network; Generate a multi-SIM capability message; transmitting the multi-SIM capability message to a first wireless network; connecting to the first wireless network based on the first SIM card; connecting to a second wireless network based on the second SIM card; Determine that a multi-SIM related issue has occurred; transmitting a first wireless device assistance information message to the first wireless network, the first wireless device assistance information message being based on the determined multi-SIM related issue; receiving a first radio resource control (RRC) reconfiguration message from the first wireless network based on the first wireless device assistance information message; transmitting a second wireless device assistance information message to the first wireless network, the second wireless device assistance information message comprising an incremental configuration change; receiving a second RRC reconfiguration message from the first wireless network based on the second wireless device assistance information message; transmitting a third wireless device assistance information message to the first wireless network, the third wireless device assistance information message including an indication to stop the incremental configuration change; as well as A third RRC reconfiguration message is received from the first wireless network based on the first wireless device assistance information message.

27. The method of claim 26, wherein the multiple SIM capability message is transmitted to the first wireless network in an attach request message.

28. The method of claim 26, wherein the multiple SIM capability message is transmitted to the first wireless network in a registration request message.

29. The method of claim 26, wherein the multi-SIM capability message is transmitted to the first wireless network in a capability report to the first wireless network.

30. The method according to claim 29, wherein the method further comprises: A capability query is received from the first wireless network, and wherein the capability report is transmitted in response to the capability query.

31. The method of claim 26, wherein the method comprises: The multi-SIM capability message is generated by determining whether the wireless device is capable of simultaneously receiving a first transmission associated with a first SIM card and a second transmission associated with a second SIM card, and wherein the multi-SIM capability message includes an indication of whether the wireless device is capable of simultaneously receiving the first transmission and the second transmission.

32. The method of claim 26, wherein the multi-SIM capability message includes an indication of one or more types of wireless networks supported by each SIM card.

33. The method of claim 26, wherein the multi-SIM capability message includes an indication that the wireless device is capable of connecting to a plurality of different wireless networks.

34. The method of claim 26, wherein the method further comprises: A first inhibit timer associated with the first wireless device assistance information message is started.

35. The method of claim 34, wherein the method further comprises: receiving a radio resource control (RRC) reconfiguration message from the first wireless network; stopping the first inhibit timer; as well as Reconfigure the connection with the first wireless network based on the RRC reconfiguration message.

36. The method of claim 34, wherein the method further comprises: determining that the first inhibit timer has expired; as well as A second wireless device assistance information message is transmitted to the first wireless network.

37. The method of claim 36, wherein the method further comprises: The steps of determining that the first inhibit timer has expired and transmitting the second wireless device assistance information message are repeated until a maximum number of retries is reached.

38. The method of claim 34, wherein the method further comprises: determining that the first inhibit timer has expired; transmitting a third wireless device assistance information message to the second wireless network; as well as A second inhibit timer associated with the third wireless device assistance information message is started.

39. The method of claim 38, wherein the method further comprises: receiving a radio resource control (RRC) reconfiguration message from the second wireless network; stopping the second prohibit timer; as well as Reconfigure the connection with the second wireless network based on the RRC reconfiguration message.

40. The method of claim 26, wherein determining that a multiple SIM related issue has occurred comprises: It is determined that a first paging occasion associated with the first wireless network overlaps with a second paging occasion associated with the second wireless network.

41. The method of claim 26, wherein determining that a multiple SIM related issue has occurred comprises: It is determined that a first frequency band associated with the first wireless network overlaps with a second frequency band associated with the second wireless network.

42. The method of claim 26, wherein the multiple SIM capability message includes an indication that the wireless device is capable of connecting to the same wireless network multiple times.

43. A method performed by a wireless system, the method comprising: receiving a multi-SIM capability message from the wireless device; determining a connection configuration of the wireless device based on the received multi-SIM capability message; transmitting an indication of the configured connection to the wireless device; receiving a first wireless device assistance information message from the wireless device; determining whether a reconfiguration request is implemented in the first wireless device assistance information message; as well as transmitting a radio resource control (RRC) reconfiguration message to the wireless device based on the determination whether the reconfiguration request is fulfilled; receiving a second wireless device assistance information message from the wireless device, the second wireless device assistance information message comprising an incremental configuration change; transmitting a second RRC reconfiguration message to the wireless device based on the second wireless device assistance information message; receiving a third wireless device assistance information message from the wireless device, the third wireless device assistance information message comprising an indication to stop the incremental configuration change; as well as A third RRC reconfiguration message is transmitted to the wireless device based on the first wireless device assistance information message.

44. The method of claim 43, wherein the multiple SIM capability message is received by the wireless system in an attach request message.

45. The method of claim 43, wherein the multiple SIM capability message is received by the wireless system in a registration request message.

46. ​​The method of claim 43, wherein the multi-SIM capability message is received by the wireless system in a capability report.

47. The method of claim 46, wherein the method further comprises: transmitting a capability query to the wireless device requesting multi-SIM capability information; And wherein the capability report is received in response to the capability query.

48. The method of claim 43, wherein the multi-SIM capability message includes an indication that the wireless device is capable of simultaneously receiving a first transmission associated with a first SIM card and a second transmission associated with a second SIM card.

49. The method of claim 43, wherein the multi-SIM capabilities message includes an indication of the type of wireless networks supported by each SIM card.

50. The method of claim 43, wherein the multi-SIM capability message includes an indication that the wireless device is capable of connecting to a plurality of different wireless networks.

51. A computing system comprising: one or more processors; and A non-transitory computer readable medium storing instructions which, when executed by the one or more processors, result in the performance of the method of any one of claims 26-50.

52. A non-transitory computer readable medium storing instructions which, when executed by a processor, result in the performance of the method of any one of claims 26-50.

53. An apparatus comprising means for performing the method according to any one of claims 26-50.

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