Conflict resolution in wireless communication systems

Abstract

The invention relates to conflict resolution in wireless communications. According to an embodiment of the present disclosure, a method performed by a user equipment (UE) configured to operate in a wireless communication system comprises: establishing a connection with a first network; receiving a release message including information for a frequency list from the first network; obtaining a measurement result for the frequency in the frequency list after the connection with the first network is released or suspended; establishing a connection with a second network; performing an operation on a service frequency of the second network based on a connection with the second network; and transmitting, to the first network, a message including a measurement for at least one second frequency other than the at least one first frequency in the frequency list, based on a conflict between the at least one first frequency in the frequency list and a service frequency of the second network.

Description

Technical Field

[0001] The present disclosure relates to conflict resolution in wireless communications. Background Art

[0002] The 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is a technology that allows high-speed packet communications. Many solutions have been proposed for the LTE goal, including those aimed at reducing user and supplier costs, improving service quality, and expanding and improving coverage and system capacity. As upper layer requirements, 3GPP LTE requires reduced cost per bit, increased service availability, flexible use of frequency bands, simple structure, open interfaces, and appropriate power consumption of terminals.

[0003] The International Telecommunication Union (ITU) and 3GPP have begun work on developing requirements and specifications for New Radio (NR) systems. 3GPP must identify and develop the technical components required for successful standardization of new RATs that will meet both urgent market needs and longer-term requirements set forth by the ITU Radiocommunication Sector (ITU-R) International Mobile Telecommunications (IMT)-2020 process in a timely manner. In addition, NR should be able to use any spectrum band up to at least the 100 GHz range that can be used for wireless communications even in the more distant future.

[0004] The goal of NR is to be a single technology framework that addresses all use cases, requirements and deployment scenarios, including enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), ultra-reliable and low-latency communications (URLLC), etc. NR should be inherently forward compatible.

[0005] In wireless communication, a user equipment (UE) may use radio resources (e.g., a first radio resource and a second radio resource) to perform an operation. However, there may be a situation where the capabilities of the UE do not support simultaneous execution of an operation on the first radio resource and an operation on the second radio resource. This may be referred to as a capability conflict between the first radio resource and the second radio resource, and / or a conflict between the first radio resource and the second radio resource. The conflict may occur in various situations, such as in multiple networks associated with a multi-universal subscriber identity module (MUSIM) operation. Summary of the invention

[0006] Solution to the problem

[0007] An aspect of the present disclosure is to provide a method and apparatus for conflict resolution in a wireless communication system.

[0008] Another aspect of the present disclosure is to provide a method and apparatus for conflict resolution in MUSIM operation in a wireless communication system.

[0009] Yet another aspect of the present disclosure is to provide a method and apparatus for measurement reporting for conflict resolution in a wireless communication system.

[0010] According to an embodiment of the present disclosure, a method performed by a user equipment (UE) configured to operate in a wireless communication system includes: establishing a connection with a first network; receiving a release message including information on a frequency list from the first network; after releasing or suspending the connection with the first network, obtaining measurement results for frequencies in the frequency list; establishing a connection with a second network; performing operations on a service frequency of the second network based on the connection with the second network; and based on a conflict between at least one first frequency in the frequency list and a service frequency of the second network, sending a message to the first network including measurement results for at least one second frequency in the frequency list other than the at least one first frequency.

[0011] According to an embodiment of the present disclosure, a user equipment (UE) configured to operate in a wireless communication system includes: at least one transceiver; at least one processor; and at least one memory, wherein the at least one memory is operatively connected to the at least one processor and stores instructions, wherein the instructions are based on being executed by the at least one processor to perform operations including the following items: establishing a connection with a first network; receiving a release message including information for a frequency list from the first network; obtaining measurement results for frequencies in the frequency list after releasing or suspending the connection with the first network; establishing a connection with a second network; performing operations on a service frequency of the second network based on the connection with the second network; and sending a message including measurement results for at least one second frequency in the frequency list other than the at least one first frequency to the first network based on a conflict between at least one first frequency in the frequency list and a service frequency of the second network.

[0012] According to an embodiment of the present disclosure, a network node in a first network configured to operate in a wireless communication system includes: at least one transceiver; at least one processor; and at least one memory, wherein the at least one memory is operatively connected to the at least one processor and stores instructions, wherein the instructions are based on being executed by the at least one processor to perform operations including the following items: establishing a connection with a user equipment (UE); sending a release message including information about a frequency list to the UE; sending a request to the UE to report measurement results for the frequency list; and receiving from the UE a message including measurement results for at least one second frequency in the frequency list other than at least one first frequency, wherein the at least one first frequency conflicts with a service frequency of a second network, and wherein the UE is configured to establish a connection with the second network and perform operations on the service frequency of the second network based on the connection with the second network.

[0013] According to an embodiment of the present disclosure, a method performed by a network node in a first network configured to operate in a wireless communication system includes: establishing a connection with a user equipment (UE); sending a release message including information about a frequency list to the UE; sending a request to the UE to report measurement results for the frequency list; and receiving a message from the UE including measurement results for at least one second frequency in the frequency list other than at least one first frequency, wherein the at least one first frequency conflicts with a service frequency of a second network, and wherein the UE is configured to establish a connection with the second network and perform operations on the service frequency of the second network based on the connection with the second network.

[0014] According to an embodiment of the present disclosure, a device suitable for operating in a wireless communication system includes: at least a processor; and at least one memory, the at least one memory is operatively connected to the at least one processor and stores instructions, the instructions are based on being executed by the at least one processor to perform operations including the following items: establishing a connection with a first network; receiving a release message including information for a frequency list from the first network; after releasing or suspending the connection with the first network, obtaining measurement results for frequencies in the frequency list; establishing a connection with a second network; performing operations on a service frequency of the second network based on the connection with the second network; and based on at least one first frequency in the frequency list conflicting with a service frequency of the second network, sending a message to the first network including measurement results for at least one second frequency in the frequency list other than the at least one first frequency.

[0015] According to one embodiment of the present disclosure, a non-transitory computer-readable medium (CRM) stores program code for implementing instructions, wherein the instructions are executed by at least one processor to perform operations including the following items: establishing a connection with a first network; receiving a release message including information about a frequency list from the first network; obtaining measurement results for frequencies in the frequency list after releasing or suspending the connection with the first network; establishing a connection with a second network; performing operations on a service frequency of the second network based on the connection with the second network; and sending a message to the first network including measurement results for at least one second frequency in the frequency list other than the at least one first frequency based on a conflict between at least one first frequency in the frequency list and the service frequency of the second network.

[0016] The present disclosure may have various beneficial effects.

[0017] For example, the UE may report the measurement result for the conflicting frequency together with the conflict indication, or may not report the measurement result for the conflicting frequency.Therefore, the conflict can be resolved and data transmission delay can be prevented.

[0018] For example, when a MUSIM UE reports an early measurement report to the network, since the UE can check whether one or more frequencies will conflict with the configured frequency of another network (i.e., the frequency of the camping cell or serving cell) due to MUSIM operation, the UE prevents unnecessary data transmission delays caused by conflicts after SCG / SCell activation on the frequency.

[0019] The beneficial effects that can be obtained by the specific embodiments of the present disclosure are not limited to the beneficial effects listed above. For example, there may be various technical effects that can be understood by a person skilled in the relevant art and / or derived from the present disclosure. Therefore, the specific effects of the present disclosure are not limited to those explicitly described herein, but may include various effects that can be understood or derived from the technical features of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 An example of a communication system to which an implementation of the present disclosure is applied is shown.

[0021] Figure 2 An example of a wireless device to which an implementation of the present disclosure is applied is shown.

[0022] Figure 3 An example of a UE to which an implementation of the present disclosure is applied is shown.

[0023] Figure 4 and Figure 5 An example of a protocol stack in a 3GPP-based wireless communication system to which an implementation of the present disclosure is applied is shown.

[0024] Figure 6 The frame structure in a 3GPP-based wireless communication system to which the implementation of the present disclosure is applied is shown.

[0025] Figure 7 An example of data flow in a 3GPP NR system to which an implementation of the present disclosure is applied is shown.

[0026] Figure 8 An example of a wireless environment in which a MUSIM device operates according to an embodiment of the present disclosure is shown.

[0027] Fig. 9 An example of an EMR process according to an embodiment of the present disclosure is shown.

[0028] Fig.10 An example of a method performed by a UE according to an embodiment of the present disclosure is shown.

[0029] Fig.11 An example of a signal flow between a UE and a network node according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0030] The following techniques, devices and systems can be applied to various wireless multiple access systems. Examples of multiple access systems include code division multiple access (CDMA) systems, frequency division multiple access (FDMA) systems, time division multiple access (TDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and multi-carrier frequency division multiple access (MC-FDMA) systems. CDMA can be implemented by radio technologies such as Universal Terrestrial Radio Access (UTRA) or CDMA2000. TDMA can be implemented by radio technologies such as Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), or Enhanced Data Rate for GSM Evolution (EDGE). OFDMA can be implemented by radio technologies such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or Evolved UTRA (E-UTRA). UTRA is part of Universal Mobile Telecommunications System (UMTS). 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is part of Evolved UMTS (E-UMTS) using E-UTRA. 3GPP LTE adopts OFDMA in the downlink (DL) and SC-FDMA in the uplink (UL). Evolutions of 3GPP LTE include LTE-Advanced (LTE-A), LTE-A Pro and / or 5G New Radio (NR).

[0031] For ease of description, the implementation of the present disclosure is mainly described with respect to a 3GPP-based wireless communication system. However, the technical features of the present disclosure are not limited thereto. For example, although the following detailed description is given based on a mobile communication system corresponding to a 3GPP-based wireless communication system, various aspects of the present disclosure that are not limited to a 3GPP-based wireless communication system are applicable to other mobile communication systems.

[0032] For terms and techniques not specifically described among the terms and techniques adopted in the present disclosure, reference may be made to wireless communication standard documents published prior to the present disclosure.

[0033] In the present disclosure, "A or B" may mean "only A", "only B", or "both A and B". In other words, in the present disclosure, "A or B" may be interpreted as "A and / or B". For example, in the present disclosure, "A, B or C" may mean "only A", "only B", "only C", or "any combination of A, B, and C".

[0034] In the present disclosure, a slash ( / ) or a comma (,) may mean "and / or". For example, "A / B" may mean "A and / or B". Thus, "A / B" may mean "only A", "only B", or "both A and B". For example, "A, B, C" may mean "A, B, or C".

[0035] In the present disclosure, "at least one of A and B" may mean "only A", "only B", or "both A and B". In addition, the expression "at least one of A or B" or "at least one of A and / or B" in the present disclosure may be interpreted as being the same as "at least one of A and B".

[0036] In addition, in the present disclosure, "at least one of A, B, and C" may mean "only A", "only B", "only C", or "any combination of A, B, and C". In addition, "at least one of A, B, or C" or "at least one of A, B and / or C" may mean "at least one of A, B, and C".

[0037] In addition, the brackets used in the present disclosure may mean "for example". In detail, when it is shown as "control information (PDCCH)", "PDCCH" may be cited as an example of "control information". In other words, in the present disclosure, "control information" is not limited to "PDCCH", and "PDCCH" may be cited as an example of "control information". In addition, even when it is shown as "control information (ie, PDCCH)", "PDCCH" may be cited as an example of "control information".

[0038] The technical features described separately in one figure in the present disclosure can be implemented separately or simultaneously.

[0039] Although not limited to this, the various descriptions, functions, processes, suggestions, methods and / or operational flowcharts of the present disclosure disclosed herein can be applied to various fields that require wireless communication and / or connection between devices (e.g., 5G).

[0040] Hereinafter, the present disclosure will be described in more detail with reference to the accompanying drawings. Unless otherwise specified, the same reference numerals in the following drawings and / or descriptions may refer to the same and / or corresponding hardware blocks, software blocks and / or functional blocks.

[0041] Figure 1 An example of a communication system to which an implementation of the present disclosure is applied is shown

[0042] Figure 1 The 5G usage scenarios shown are only exemplary, and the technical features of the present disclosure can be applied to Figure 1 Other 5G usage scenarios not shown.

[0043] The three main demand categories for 5G include: (1) enhanced mobile broadband (eMBB) category, (2) massive machine type communication (mMTC) category, and (3) ultra-reliable and low-latency communication (URLLC) category.

[0044] refer to Figure 1 , the communication system 1 includes wireless devices 100a to 100f, a base station (BS) 200, and a network 300. Figure 1 A 5G network is illustrated as an example of a network of the communication system 1, but implementations of the present disclosure are not limited to the 5G system and may be applied to future communication systems other than the 5G system.

[0045] BS 200 and network 300 may be implemented as wireless devices, and a specific wireless device may operate as a BS / network node relative to other wireless devices.

[0046] The wireless devices 100a to 100f represent devices that perform communication using a radio access technology (RAT) (e.g., 5G NR or LTE) and may be referred to as communication / radio / 5G devices. The wireless devices 100a to 100f may include, but are not limited to, a robot 100a, a vehicle 100b-1 and 100b-2, an extended reality (XR) device 100c, a handheld device 100d, a home appliance 100e, an Internet of Things (IoT) device 100f, and an artificial intelligence (AI) device / server 400. For example, a vehicle may include a vehicle with a wireless communication function, an autonomous vehicle, and a vehicle capable of performing communication between vehicles. A vehicle may include an unmanned aerial vehicle (UAV) (e.g., a drone). The XR device may include an augmented reality (AR) / virtual reality (VR) / mixed reality (MR) device and may be implemented in the form of a head-mounted device (HMD), a head-up display (HUD) installed in a vehicle, a television, a smart phone, a computer, a wearable device, a home appliance device, a digital signage, a vehicle, a robot, and the like. Handheld devices may include smart phones, smart tablets, wearable devices (e.g., smart watches or smart glasses), and computers (e.g., notebooks). Home appliances may include TVs, refrigerators, and washing machines. IoT devices may include sensors and smart meters.

[0047] In the present disclosure, the wireless devices 100a to 100f may be referred to as user equipment (UE). UE may include, for example, a cellular phone, a smart phone, a laptop computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, a plate-shaped personal computer (PC), a tablet PC, an ultrabook, a vehicle, a vehicle with an autonomous driving function, a connected car, a UAV, an AI module, a robot, an AR device, a VR device, an MR device, a hologram device, a public safety device, an MTC device, an IoT device, a medical device, a FinTech device (or a financial device), a security device, a weather / environmental device, a device related to 5G services, or a device related to the field of the fourth industrial revolution.

[0048] The wireless devices 100a to 100f may be connected to the network 300 via the BS 200. The AI ​​technology may be applied to the wireless devices 100a to 100f, and the wireless devices 100a to 100f may be connected to the AI ​​server 400 via the network 300. The network 300 may be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, and a super 5G network. Although the wireless devices 100a to 100f may communicate with each other via the BS 200 / network 300, the wireless devices 100a to 100f may perform direct communication (e.g., side link communication) with each other without passing through the BS 200 / network 300. For example, the vehicles 100b-1 and 100b-2 may perform direct communication (e.g., vehicle-to-vehicle (V2V) / vehicle-to-everything (V2X) communication). An IoT device (e.g., a sensor) may perform direct communication with other IoT devices (e.g., a sensor) or other wireless devices 100a to 100f.

[0049] Wireless communication / connection 150a, 150b, and 150c may be established between wireless devices 100a to 100f and / or between wireless devices 100a to 100f and BS200 and / or between BS200. Here, wireless communication / connection may be established through various RATs (e.g., 5G NR) such as uplink / downlink communication 150a, sidelink communication (or device-to-device (D2D) communication) 150b, inter-base station communication 150c (e.g., relay, integrated access and backhaul (IAB)), etc. The wireless devices 100a to 100f and BS200 / wireless devices 100a to 100f may send / receive radio signals to / from each other through wireless communication / connection 150a, 150b, and 150c. For example, wireless communication / connection 150a, 150b, and 150c may send / receive signals through various physical channels. To this end, various configuration information configuration processes for sending / receiving radio signals, various signal processing processes (e.g., channel coding / decoding, modulation / demodulation, and resource mapping / demapping), and at least a portion of the resource allocation process can be performed based on various proposals of the present disclosure.

[0050] NR supports multiple numerologies (and / or multiple subcarrier spacings (SCS)) to support various 5G services. For example, if the SCS is 15kHz, wide areas can be supported in traditional cellular bands, while if the SCS is 30kHz / 60kHz, dense cities, lower latency, and wider carrier bandwidths can be supported. If the SCS is 60kHz or higher, bandwidths greater than 24.25GHz can be supported to overcome phase noise.

[0051] The NR frequency band may be defined as two types of frequency ranges, namely, frequency range 1 (FR1) and frequency range 2 (FR2). The numerical values ​​of the frequency ranges may be changed. For example, the two types of frequency ranges (FR1 and FR2) may be as shown in Table 1 below. For ease of explanation, in the frequency range used in the NR system, FR1 may mean "a range below 6 GHz", FR2 may mean "a range above 6 GHz", and may be referred to as millimeter wave (mmW).

[0052] [Table 1]

[0053] Frequency range specification Corresponding frequency range Subcarrier spacing FR1 450MHz-6000MHz 15, 30, 60kHz FR2 24250MH-52600MHz 60, 120, 240kHz

[0054] As described above, the numerical value of the frequency range of the NR system can be changed. For example, FR1 may include a frequency band of 410 MHz to 7125 MHz as shown in Table 2 below. That is, FR1 may include a frequency band of 6 GHz (or 5850 MHz, 5900 MHz, 5925 MHz, etc.) or higher. For example, a frequency band of 6 GHz (or 5850 MHz, 5900 MHz, 5925 MHz, etc.) or more included in FR1 may include an unlicensed frequency band. The unlicensed frequency band may be used for various purposes, for example, for communication of vehicles (e.g., autonomous driving).

[0055] [Table 2]

[0056] Frequency range specification Corresponding frequency range Subcarrier spacing FR1 410MHz-7125MHz 15, 30, 60kHz FR2 24250MHz-52600MHz 60, 120, 240kHz

[0057] Here, the radio communication technology implemented in the wireless device in the present disclosure may include narrowband Internet of Things (NB-IoT) technology for low power communication and LTE, NR and 6G. For example, NB-IoT technology may be an example of low power wide area network (LPWAN) technology, which may be implemented in specifications such as LTE Cat NB1 and / or LTE Cat NB2, and may not be limited to the above names. Additionally and / or alternatively, the radio communication technology implemented in the wireless device in the present disclosure may communicate based on LTE-M technology. For example, LTE-M technology may be an example of LPWAN technology, and may be called by various names such as enhanced machine type communication (eMTC). For example, LTE-M technology may be implemented in at least one of various specifications, such as 1) LTE Cat 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-bandwidth limited (non-BL), 5) LTE-MTC, 6) LTE machine type communication and / or 7) LTE M, and may not be limited to the above names. Additionally and / or alternatively, the radio communication technology implemented in the wireless device in the present disclosure may include at least one of ZigBee, Bluetooth, and / or LPWAN considering low power communication, and may not be limited to the above names. For example, ZigBee technology may generate a personal area network (PAN) associated with small / low power digital communication based on various specifications (such as IEEE 802.15.4), and may be referred to as various names. Figure 2 An example of a wireless device to which an implementation of the present disclosure is applied is shown.

[0058] exist Figure 2 In the embodiment, the first wireless device 100 and / or the second wireless device 200 may be implemented in various forms according to the usage / service. For example, {the first wireless device 100 and the second wireless device 200} may correspond to Figure 1 At least one of {wireless devices 100a to 100f and BS200}, {wireless devices 100a to 100f and wireless devices 100a to 100f} and / or {BS200 and BS200}. The first wireless device 100 and / or the second wireless device 200 may be configured by various elements, devices / components and / or modules.

[0059] The first wireless device 100 may include at least one transceiver (eg, transceiver 106 ), at least one processing chip (eg, processing chip 101 ), and / or one or more antennas 108 .

[0060] The processing chip 101 may include at least one processor (eg, the processor 102 ) and at least one memory (eg, the memory 104 ). Additionally and / or alternatively, the memory 104 may be placed outside the processing chip 101 .

[0061] The processor 102 may control the memory 104 and / or the transceiver 106, and may be adapted to implement the descriptions, functions, processes, suggestions, methods, and / or operational flow charts described in the present disclosure. For example, the processor 102 may process the information in the memory 104 to generate first information / signals, and then send a radio signal including the first information / signals through the transceiver 106. The processor 102 may receive a radio signal including second information / signals through the transceiver 106, and then store information obtained by processing the second information / signals in the memory 104.

[0062] The memory 104 may be operatively connected to the processor 102. The memory 104 may store various types of information and / or instructions. The memory 104 may store firmware and / or software code 105 that implements codes, commands, and / or command sets that, when executed by the processor 102, perform the descriptions, functions, processes, suggestions, methods, and / or operational flow charts disclosed in the present disclosure. For example, the firmware and / or software code 105 may implement instructions that, when executed by the processor 102, perform the descriptions, functions, processes, suggestions, methods, and / or operational flow charts disclosed in the present disclosure. For example, the firmware and / or software code 105 may control the processor 102 to execute one or more protocols. For example, the firmware and / or software code 105 may control the processor 102 to execute one or more layers of a wireless interface protocol.

[0063] In this document, the processor 102 and the memory 104 may be part of a communication modem / circuit / chip designed to implement a RAT (e.g., LTE or NR). The transceiver 106 may be connected to the processor 102 and transmit and / or receive radio signals through one or more antennas 108. Each transceiver 106 may include a transmitter and / or a receiver. The transceiver 106 may be used interchangeably with a radio frequency (RF) unit. In the present disclosure, the first wireless device 100 may represent a communication modem / circuit / chip.

[0064] The second wireless device 200 may include at least one transceiver (eg, transceiver 206 ), at least one processing chip (eg, processing chip 201 ), and / or one or more antennas 208 .

[0065] The processing chip 201 may include at least one processor (eg, the processor 202 ) and at least one memory (eg, the memory 204 ). Additionally and / or alternatively, the memory 204 may be placed outside the processing chip 201 .

[0066] The processor 202 may control the memory 204 and / or the transceiver 206, and may be adapted to implement the descriptions, functions, processes, suggestions, methods, and / or operational flow charts described in the present disclosure. For example, the processor 202 may process the information in the memory 204 to generate third information / signals, and then send a radio signal including the third information / signals through the transceiver 206. The processor 202 may receive a radio signal including fourth information / signals through the transceiver 106, and then store information obtained by processing the fourth information / signals in the memory 204.

[0067] The memory 204 may be operatively connected to the processor 202. The memory 204 may store various types of information and / or instructions. The memory 204 may store firmware and / or software code 205 that implements codes, commands, and / or command sets that, when executed by the processor 202, perform the descriptions, functions, processes, suggestions, methods, and / or operational flow charts disclosed in the present disclosure. For example, the firmware and / or software code 205 may implement instructions that, when executed by the processor 202, perform the descriptions, functions, processes, suggestions, methods, and / or operational flow charts disclosed in the present disclosure. For example, the firmware and / or software code 205 may control the processor 202 to execute one or more protocols. For example, the firmware and / or software code 205 may control the processor 202 to execute one or more layers of a wireless interface protocol.

[0068] In this article, the processor 202 and the memory 204 may be part of a communication modem / circuit / chip designed to implement a RAT (e.g., LTE or NR). The transceiver 206 may be connected to the processor 202 and transmit and / or receive radio signals through one or more antennas 208. Each of the transceivers 206 may include a transmitter and / or a receiver. The transceiver 206 may be used interchangeably with an RF unit. In the present disclosure, the second wireless device 200 may represent a communication modem / circuit / chip.

[0069] In the following, the hardware elements of the wireless devices 100 and 200 will be described in more detail. One or more protocol layers may be implemented by, but not limited to, one or more processors 102 and 202. For example, one or more processors 102 and 202 may implement one or more layers (e.g., functional layers such as a physical (PHY) layer, a medium access control (MAC) layer, a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, a radio resource control (RRC) layer, and a service data adaptation protocol (SDAP) layer). One or more processors 102 and 202 may generate one or more protocol data units (PDUs), one or more service data units (SDUs), messages, control information, data, or information according to the descriptions, functions, processes, suggestions, methods, and / or operation flow charts disclosed in the present disclosure. One or more processors 102 and 202 may generate a signal (e.g., a baseband signal) including a PDU, SDU, message, control information, data, or information according to the description, functions, procedures, suggestions, methods, and / or operational flowcharts disclosed in the present disclosure and provide the generated signal to one or more transceivers 106 and 206. One or more processors 102 and 202 may receive a signal (e.g., a baseband signal) from one or more transceivers 106 and 206 and obtain the PDU, SDU, message, control information, data, or information according to the description, functions, procedures, suggestions, methods, and / or operational flowcharts disclosed in the present disclosure.

[0070] One or more processors 102 and 202 may be referred to as controllers, microcontrollers, microprocessors, or microcomputers. One or more processors 102 and 202 may be implemented by hardware, firmware, software, or a combination thereof. As an example, one or more application specific integrated circuits (ASICs), one or more digital signal processors (DSPs), one or more digital signal processing devices (DSPDs), one or more programmable logic devices (PLDs), or one or more field programmable gate arrays (FPGAs) may be included in one or more processors 102 and 202. For example, one or more processors 102 and 202 may be configured by a group of communication control processors, application processors (APs), electronic control units (ECUs), central processing units (CPUs), graphics processing units (GPUs), and memory control processors.

[0071] One or more memories 104 and 204 may be connected to one or more processors 102 and 202 and store various types of data, signals, messages, information, programs, codes, instructions, and / or commands. One or more memories 104 and 204 may be configured by random access memory (RAM), dynamic RAM (DRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EPROM), flash memory, volatile memory, non-volatile memory, hard drive, register, cache memory, computer-readable storage medium, and / or a combination thereof. One or more memories 104 and 204 may be located inside and / or outside of one or more processors 102 and 202. One or more memories 104 and 204 may be connected to one or more processors 102 and 202 by various technologies such as wired connection or wireless connection.

[0072] One or more transceivers 106 and 206 can send the user data, control information and / or radio signal / channel mentioned in the description, function, process, suggestion, method and / or operation flow chart disclosed in the present disclosure to one or more other devices. One or more transceivers 106 and 206 can receive the user data, control information and / or radio signal / channel mentioned in the description, function, process, suggestion, method and / or operation flow chart disclosed in the present disclosure from one or more other devices. For example, one or more transceivers 106 and 206 can be connected to one or more processors 102 and 202 and send and receive radio signals. For example, one or more processors 102 and 202 can perform control so that one or more transceivers 106 and 206 can send user data, control information or radio signal to one or more other devices. One or more processors 102 and 202 can perform control so that one or more transceivers 106 and 206 can receive user data, control information or radio signal from one or more other devices.

[0073] One or more transceivers 106 and 206 may be connected to one or more antennas 108 and 208. Additionally or alternatively, one or more transceivers 106 and 206 may include one or more antennas 108 and 208. One or more transceivers 106 and 206 may be adapted to transmit and receive user data, control information, and / or radio signals / channels mentioned in the description, functions, processes, suggestions, methods, and / or operational flow charts disclosed in the present disclosure through one or more antennas 108 and 208. In the present disclosure, one or more antennas 108 and 208 may be multiple physical antennas or multiple logical antennas (e.g., antenna ports).

[0074] One or more transceivers 106 and 206 may convert received user data, control information, radio signals / channels, etc. from RF band signals to baseband signals, so as to process the received user data, control information, radio signals / channels, etc. using one or more processors 102 and 202. One or more transceivers 106 and 206 may convert user data, control information, radio signals / channels, etc. processed using one or more processors 102 and 202 from baseband signals to RF band signals. To this end, one or more transceivers 106 and 206 may include (analog) oscillators and / or filters. For example, one or more transceivers 106 and 206 may up-convert OFDM baseband signals to OFDM signals through their (analog) oscillators and / or filters under the control of one or more processors 102 and 202 and transmit the up-converted OFDM signals at the carrier frequency. One or more transceivers 106 and 206 may receive an OFDM signal at a carrier frequency and down-convert the OFDM signal to an OFDM baseband signal through their (analog) oscillators and / or filters under the control of one or more processors 102 and 202 .

[0075] although Figure 2 140 . Although not shown in the figure, the wireless devices 100 and 200 may also include additional components. The additional components 140 may be configured differently depending on the type of the wireless devices 100 and 200. For example, the additional components 140 may include at least one of a power supply unit / battery, an input / output (I / O) device (e.g., an audio I / O port, a video I / O port), a drive device, and a computing device. The additional components 140 may be connected to one or more processors 102 and 202 via various technologies such as wired or wireless connections.

[0076] In an implementation of the present disclosure, a UE may be used as a transmitting device in an uplink (UL) and a receiving device in a downlink (DL). In an implementation of the present disclosure, a BS may be used as a receiving device in the UL and a transmitting device in the DL. Hereinafter, for the convenience of description, it is mainly assumed that the first wireless device 100 is used as a UE and the second wireless device 200 is used as a BS. For example, a processor 102 connected to the first wireless device 100, installed on the first wireless device 100, or started in the first wireless device 100 may be adapted to perform UE behavior according to an implementation of the present disclosure or control the transceiver 106 to perform UE behavior according to an implementation of the present disclosure. A processor 202 connected to the second wireless device 200, installed on the second wireless device 200, or started in the second wireless device 200 may be adapted to perform BS behavior according to an implementation of the present disclosure or control the transceiver 206 to perform BS behavior according to an implementation of the present disclosure.

[0077] In this disclosure, a BS is also referred to as a Node B (NB), an eNode B (eNB), or a gNB.

[0078] Figure 3 An example of a UE to which an implementation of the present disclosure is applied is shown.

[0079] refer to Figure 3 , UE 100 may correspond to Figure 2 A first wireless device 100 is provided.

[0080] UE 100 includes a processor 102 , a memory 104 , a transceiver 106 , one or more antennas 108 , a power management module 141 , a battery 142 , a display 143 , a keypad 144 , a subscriber identity module (SIM) card 145 , a speaker 146 , and a microphone 147 .

[0081] The processor 102 may be adapted to implement the descriptions, functions, processes, suggestions, methods and / or operational flow charts disclosed in the present disclosure. The processor 102 may be adapted to control one or more other components of the UE 100 to implement the descriptions, functions, processes, suggestions, methods and / or operational flow charts disclosed in the present disclosure. The radio interface protocol layer may be implemented in the processor 102. The processor 102 may include an ASIC, other chipsets, logic circuits and / or data processing devices. The processor 102 may be an application processor. The processor 102 may include at least one of a digital signal processor (DSP), a central processing unit (CPU), a graphics processing unit (GPU), a modem (modulator and demodulator). Examples of the processor 102 may be at MANUFACTURED BY SNAPDRAGON TM Series processors, Manufactured by EXYNOS TM Series processors, A series of processors manufactured by Made by HELIO TM Series processors, ATOM manufactured TM series processors or the corresponding next-generation processors.

[0082] The memory 104 is connected to the processor 102 when in operation and stores various information to operate the processor 102. The memory 104 may include ROM, RAM, flash memory, memory card, storage medium and / or other storage devices. When the embodiment is implemented in software, the technology described herein can be implemented using modules (e.g., processes, functions, etc.) that execute the descriptions, functions, processes, suggestions, methods and / or operation flow charts disclosed in this disclosure. The modules can be stored in the memory 104 and implemented by the processor 102. The memory 104 can be implemented within the processor 102 or outside the processor 102 (in this case, the memory can be communicatively connected to the processor 102 via various means known in the art).

[0083] The transceiver 106 is connected to the processor 102 during operation and sends and / or receives radio signals. The transceiver 106 includes a transmitter and a receiver. The transceiver 106 may include a baseband circuit to process radio frequency signals. The transceiver 106 controls one or more antennas 108 to send and / or receive radio signals.

[0084] The power management module 141 manages the power of the processor 102 and / or the transceiver 106. The battery 142 supplies power to the power management module 141.

[0085] The display 143 outputs a result processed by the processor 102. The keypad 144 receives an input to be used by the processor 102. The keypad 144 may be displayed on the display 143.

[0086] The SIM card 145 is an integrated circuit designed to securely store an International Mobile Subscriber Identity (IMSI) number and its associated keys, which are used to identify and authenticate subscribers on mobile telephony devices such as mobile phones and computers. Contact information can also be stored on many SIM cards.

[0087] The speaker 146 outputs sound related results processed by the processor 102. The microphone 147 receives sound related input to be used by the processor 102.

[0088] Figure 4 and Figure 5 An example of a protocol stack in a 3GPP-based wireless communication system to which an implementation of the present disclosure is applied is shown.

[0089] Specifically, Figure 4 An example of a radio interface user plane protocol stack between a UE and a BS is illustrated, and Figure 5An example of a radio interface control plane protocol stack between a UE and a BS is illustrated. The control plane refers to a path for transmitting control messages used to manage calls by the UE and the network. The user plane refers to a path for transmitting data generated in the application layer (for example, voice data or Internet packet data). Figure 4 , the user plane protocol stack can be divided into layer 1 (ie, PHY layer) and layer 2. Figure 5 , the control plane protocol stack can be divided into layer 1 (ie, PHY layer), layer 2, layer 3 (eg, RRC layer), and non-access stratum (NAS) layer. Layer 1, layer 2, and layer 3 are called access stratum (AS).

[0090] In the 3GPP LTE system, Layer 2 is separated into the following sublayers: MAC, RLC, and PDCP. In the 3GPP NR system, Layer 2 is separated into the following sublayers: MAC, RLC, PDCP, and SDAP. The PHY layer provides transport channels to the MAC sublayer, the MAC sublayer provides logical channels to the RLC sublayer, the RLC sublayer provides RLC channels to the PDCP sublayer, and the PDCP sublayer provides radio bearers to the SDAP sublayer. The SDAP sublayer provides Quality of Service (QoS) flows to the 5G core network.

[0091] In the 3GPP NR system, the main services and functions of the MAC sublayer include: mapping between logical channels and transport channels; multiplexing MAC SDUs belonging to one or different logical channels to / demultiplexing transport blocks (TBs) delivered to / from the physical layer on the transport channel; scheduling information reporting; error correction through hybrid automatic repeat request (HARQ) (one HARQ entity per cell in the case of carrier aggregation (CA); priority handling between UEs with dynamic scheduling; priority handling between logical channels of one UE with logical channel prioritization; padding. A single MAC entity can support multiple parameter sets, transmission timings, and cells. Mapping restrictions in logical channel prioritization control which parameter set(s), cell, and transmission timing a logical channel can use.

[0092] MAC provides different kinds of data transmission services. In order to adapt to different kinds of data transmission services, multiple types of logical channels are defined, that is, each logical channel supports the transmission of a specific type of information. Each logical channel type is defined by what type of information is transmitted. Logical channels are divided into two groups: control channels and traffic channels. Control channels are only used for the transmission of control plane information, and traffic channels are only used for the transmission of user plane information. The broadcast control channel (BCCH) is a downlink logical channel for broadcasting system control information, the paging control channel (PCCH) is a downlink logical channel for transmitting paging information, system information change notifications, and indications of ongoing public warning services (PWS) broadcasts, the common control channel (CCCH) is a logical channel for sending control information between the UE and the network and for UEs that do not have an RRC connection with the network, and the dedicated control channel (DCCH) is a point-to-point bidirectional logical channel that sends dedicated control information between the UE and the network and is used by UEs with an RRC connection. The dedicated traffic channel (DTCH) is a point-to-point logical channel dedicated to one UE, which is used to transmit user information. DTCH can exist in both the uplink and downlink. In the downlink, there are the following connections between logical channels and transport channels: BCCH can be mapped to the broadcast channel (BCH); BCCH can be mapped to the downlink shared channel (DL-SCH); PCCH can be mapped to the paging channel (PCH); CCCH can be mapped to DL-SCH; DCCH can be mapped to DL-SCH; and DTCH can be mapped to DL-SCH. In the uplink, there are the following connections between logical channels and transport channels: CCCH can be mapped to the uplink shared channel (UL-SCH); DCCH can be mapped to UL-SCH; and DTCH can be mapped to UL-SCH.

[0093] The RLC sublayer supports three transmission modes: transparent mode (TM), unacknowledged mode (UM) and acknowledged mode (AM). RLC configuration is for each logical channel and does not depend on parameter sets and / or transmission duration. In 3GPP NR systems, the main services and functions of the RLC sublayer depend on the transmission mode and include: delivery of upper layer PDUs; sequence numbering independent of one of PDCP (UM and AM); error correction through ARQ (AM only); segmentation (AM and UM) and re-segmentation (AM only) of RLC SDUs; reassembly of SDUs (AM and UM); duplicate detection (AM only); RLC SDU discard (AM and UM); RLC re-establishment; protocol error detection (AM only).

[0094] In the 3GPP NR system, the main services and functions of the PDCP sublayer for the user plane include: sequence numbering; header compression and decompression using robust header compression (ROHC); transmission of user data; reordering and duplicate detection; in-sequence delivery; PDCP PDU routing (in the case of split bearers); retransmission of PDCP SDU; ciphering, deciphering and integrity protection; PDCP SDU discard; PDCP re-establishment and data recovery for RLC AM; PDCP status report for RLC AM; PDCP PDU duplication and duplicate discard indication to lower layers. The main services and functions of the PDCP sublayer for the control plane include: sequence numbering; ciphering, deciphering and integrity protection; transmission of control plane data; reordering and duplicate detection; in-sequence delivery; PDCP PDU duplication and duplicate discard indication to lower layers.

[0095] In 3GPP NR system, the main services and functions of SDAP include: mapping between QoS flows and data radio bearers; marking QoS flow ID (QFI) in both DL and UL packets. A single SDAP protocol entity is configured for each individual PDU session.

[0096] In the 3GPP NR system, the main services and functions of the RRC sublayer include: broadcast of system information related to AS and NAS; paging initiated by 5GC or NG-RAN; establishment, maintenance and release of RRC connection between UE and NG-RAN; security functions including key management; establishment, configuration, maintenance and release of signaling radio bearers (SRBs) and data radio bearers (DRBs); mobility functions (including: handover and context transfer; UE cell selection and reselection and control of cell selection and reselection; inter-RAT mobility); QoS management functions; UE measurement reporting and control of reporting; detection and repair of radio link failures; transmission of NAS messages from UE to NAS / from NAS to UE.

[0097] Figure 6 The frame structure in a 3GPP-based wireless communication system to which the implementation of the present disclosure is applied is shown.

[0098] Figure 6The frame structure shown is only exemplary, and the number of subframes, the number of time slots, and / or the number of symbols in a frame may vary. In a 3GPP-based wireless communication system, OFDM parameter sets (e.g., subcarrier spacing (SCS), transmission time interval (TTI) duration) may be configured differently between multiple cells aggregated for one UE. For example, if the UE is configured with different SCSs for cells aggregated for the cells, the (absolute time) duration of time resources (e.g., subframes, time slots, or TTIs) including the same number of symbols may be different among the aggregated cells. In this article, the symbol may include an OFDM symbol (or CP-OFDM symbol), an SC-FDMA symbol (or a discrete Fourier transform-spread-OFDM (DFT-s-OFDM) symbol).

[0099] refer to Figure 6 , downlink and uplink transmissions are organized into frames. Each frame has T f =10ms duration. Each frame is divided into two half-frames, where each half-frame has a duration of 5ms. Each half-frame includes 5 sub-frames, where the duration of each sub-frame is T sf is 1 ms. Each subframe is divided into slots, and the number of slots in a subframe depends on the subcarrier spacing. Each slot includes 14 or 12 OFDM symbols based on a cyclic prefix (CP). In a normal CP, each slot includes 14 OFDM symbols, and in an extended CP, each slot includes 12 OFDM symbols. The parameter set is based on an exponentially scalable subcarrier spacing βf=2 u *15kHz.

[0100] Table 3 shows the subcarrier spacing βf=2 u *N is the number of OFDM symbols per slot for normal CP of 15kHz slot symb , the number of time slots per frame N frame，u slot And the number of time slots N in each subframe subframe，u slot .

[0101] [Table 3]

[0102] u <![CDATA[N slot symb ]]> <![CDATA[N frame，u slot ]]> <![CDATA[N subframe，u slot ]]> 0 14 10 1 1 14 20 2 2 14 40 4 3 14 80 8 4 14 160 16

[0103] Table 4 shows the subcarrier spacing βf=2 u *N number of OFDM symbols per slot for extended CP of 15kHz slot symb , the number of time slots per frame N frame，u slot And the number of time slots N in each subframesubframe，u slot .

[0104] [Table 4]

[0105] u <![CDATA[N slot symb ]]> <![CDATA[N frame，u slot ]]> <![CDATA[N subframe，u slot ]]> 2 1 2 40 4

[0106] A slot includes a plurality of symbols (eg, 14 or 12 symbols) in the time domain. For each parameter set (eg, subcarrier spacing) and carrier, a common resource block (CRB) N indicated by higher layer signaling (eg, RRC signaling) is allocated. start，u grid To begin, we define N size，u grid，x *N RB sc subcarriers and N subframe，u symb OFDM symbol resource grid, where N size，u grid，x N is the number of resource blocks (RBs) in the resource grid, and the subscript x is DL for the downlink and UL for the uplink. RB sc is the number of subcarriers per RB. In 3GPP-based wireless communication systems, N RB sc Typically 12. There is one resource grid for a given antenna port p, subcarrier spacing configuration u, and transmission direction (DL or UL). The carrier bandwidth N for subcarrier spacing configuration u size,u grid Given by high-level parameters (e.g., RRC parameters). Each element in the resource grid for antenna port p and subcarrier spacing configuration u is called a resource element (RE), and one complex symbol can be mapped to each RE. Each RE in the resource grid is uniquely identified by an index k in the frequency domain and an index l representing the symbol position in the time domain relative to a reference point. In a 3GPP-based wireless communication system, an RB is defined by 12 consecutive subcarriers in the frequency domain. In a 3GPPNR system, RBs are classified into CRBs and physical resource blocks (PRBs). CRBs are numbered upward from 0 in the frequency domain for subcarrier spacing configuration u. The center of subcarrier 0 of CRB0 for subcarrier spacing configuration u coincides with "point A" used as a common reference point for the resource block grid. In a 3GPP NR system, PRBs are defined within a bandwidth part (BWP) and are numbered from 0 to N. size BWP,i -1 numbering, where i is the number of the bandwidth part. Physical resource block n in bandwidth part i PRB With common resource block n CRB The relationship between them is as follows: PRB =n CRB +Nsize BWP,i , where N size BWP,i It is a common resource block where the bandwidth part starts relative to CRB0. A BWP includes multiple consecutive resource blocks. A carrier can include up to N (e.g., 5) BWPs. A UE can be configured with one or more BWPs on a given component carrier. Only one BWP can be activated at a time among the BWPs configured for a UE. The active BWP defines the operating bandwidth of the UE within the operating bandwidth of the cell.

[0107] In the present disclosure, the term "cell" may refer to a geographical area where one or more nodes provide a communication system or to a radio resource. A "cell" as a geographical area may be understood as a coverage area in which a node can provide services using a carrier, and a "cell" as a radio resource (e.g., a time-frequency resource) is associated with a bandwidth as a frequency range configured by a carrier. A "cell" associated with a radio resource is defined by a combination of downlink resources and uplink resources (e.g., a combination of a DL component carrier (CC) and a ULCC). A cell may be configured only by downlink resources, or may be configured by downlink resources and uplink resources. Since the DL coverage (which is the range in which a node can send a valid signal) and the UL coverage (which is the range in which a node can receive a valid signal from a UE) depend on the carrier carrying the signal, the coverage of a node may be associated with the coverage of a "cell" of a radio resource used by the node. Therefore, the term "cell" may sometimes be used to represent the service coverage of a node, to represent a radio resource at other times, or to represent a range in which a signal using a radio resource can reach with effective strength at other times.

[0108] In CA, two or more CCs are aggregated. The UE can receive or transmit on one or more CCs simultaneously according to its capabilities. CA is supported for both continuous CCs and non-contiguous CCs. When CA is configured, the UE has only one RRC connection with the network. When the RRC connection is established / reestablished / switched, one serving cell provides NAS mobility information, and when the RRC connection is reestablished / switched, one serving cell provides security input. This cell is called the primary cell (PCell). The PCell is a cell operating on the primary frequency, where the UE performs an initial connection establishment process or initiates a connection reestablishment process. Depending on the UE capabilities, the secondary cell (SCell) can be configured to form a set of serving cells together with the PCell. The SCell is a cell that provides additional radio resources on top of a special cell (SpCell). Therefore, the set of configured serving cells for the UE always consists of one PCell and one or more SCells. For dual connection (DC) operation, the term SpCell refers to the PCell of the primary cell group (MCG) or the primary SCell (PSCell) of the secondary cell group (SCG). SpCell supports PUCCH transmission and contention-based random access and is always activated. MCG is a group of serving cells associated with a master node, which includes SpCell (PCell) and optionally one or more SCells. For UEs configured with DC, SCG is a subset of serving cells associated with a secondary node, which includes PSCell and zero or more SCells. For UEs in RRC_CONNECTED that are not configured with CA / DC, there is only one serving cell consisting of PCell. For UEs in RRC_CONNECTED that are configured with CA / DC, the term "serving cell" is used to refer to a set of cells consisting of SpCell and all SCells. In DC, two MAC entities are configured in the UE: one for MCG and one for SCG.

[0109] Figure 7 An example of data flow in a 3GPP NR system to which an implementation of the present disclosure is applied is shown.

[0110] refer to Figure 7 , "RB" means radio bearer, and "H" means header. Radio bearers are classified into two groups: DRB for user plane data and SRB for control plane data. MAC PDU is transmitted / received to / from an external device through the PHY layer using radio resources. MAC PDU arrives at the PHY layer in the form of a transport block.

[0111] In the PHY layer, uplink transport channels UL-SCH and RACH are mapped to their physical channels, physical uplink shared channel (PUSCH) and physical random access channel (PRACH), respectively, and downlink transport channels DL-SCH, BCH and PCH are mapped to physical downlink shared channel (PDSCH), physical broadcast channel (PBCH) and PDSCH, respectively. In the PHY layer, uplink control information (UCI) is mapped to physical uplink control channel (PUCCH), and downlink control information (DCI) is mapped to physical downlink control channel (PDCCH). The UE sends MAC PDU related to UL-SCH via PUSCH based on UL grant, and the BS sends MAC PDU related to DL-SCH via PDSCH based on DL assignment.

[0112] Hereinafter, contents related to a Multi Universal Subscriber Identity Module (MUSIM) are described.

[0113] Multi-USIM devices (eg, MUSIM devices 810) are becoming more and more popular in different countries. A user can have both a personal subscription and a business subscription in one device, or have two personal subscriptions in one device for different services.

[0114] Figure 8 An example of a wireless environment in which a MUSIM device operates according to an embodiment of the present disclosure is shown.

[0115] Reference Figure 8 , the MUSIM device 810 (or MUSIM UE 810) may have multiple Universal Subscriber Identity Modules (USIMs) - USIM1 811 (or USIM A 811) and USIM2 813 (USIM B 813). The MUSIM device 810 may register with network 1 (or network A) 820 based on subscription information in USIM1 811 to obtain connection A 825 between network 1 820 and the MUSIM device 810. The MUSIM device 810 may also register with network 2 (or network B) 830 based on subscription information in USIM2 813 to obtain connection B 835 between network 2 830 and the MUSIM device 810. The MUSIM device 810 may use USIM1 811 to perform communication with network 1 820 through connection A 825, and use USIM2 813 to perform communication with network 2 830 through connection B 835.

[0116] In a wireless environment in which a MUSIM device operates, the following properties may hold true:

[0117] - Each registration to the USIMS from a MUSIM device can be handled independently.

[0118] - Each registered USIM in a MUSIM device may be associated with a unique International Mobile Equipment Identity (IMEI) / Permanent Equipment Identifier (PEI).

[0119] - A MUSIM UE can connect to i) an Evolved Packet System (EPS) on one USIM and a 5G System (5GS) on another USIM; ii) EPS on both USIMs; or iii) 5GS on both USIMs.

[0120] -MUSIM UE can be a single receive (RX) / dual RX / single transmit (TX) / dual TX UE. Single RX may allow the MUSIM UE to receive traffic from only one network at a time. Dual RX may allow the MUSIM UE to receive traffic from two networks simultaneously. Single TX may allow the MUSIM UE to send traffic to one network at a time. Dual TX may allow the MUSIM UE to send traffic to two networks simultaneously. The terms single RX / TX and dual RX / TX do not refer to device types. As an example, a single UE may use dual TX in some cases and single TX in other cases.

[0121] - If / when multiple USIMs in a MUSIM device are served by different serving networks, network coordination between the serving networks may not be required.

[0122] - MUSIM devices with different USIMs may reside on the same serving network RAN ​​node with all USIMs, or MUSIM devices may reside on different serving network RAN ​​nodes.

[0123] - The USIMs may belong to the same or different operators. No coordination between the operators involved may be required.

[0124] - The USIM can be a physical SIM or an embedded SIM (eSIM).

[0125] When actively communicating with the first system / network, the MUSIM UE may need to periodically monitor the second system / network (e.g., synchronize, read a paging channel, perform measurements, or read system information). Depending on the UE implementation (i.e., single receive (Rx) or dual Rx), the periodic activity on the second system may or may not have a performance impact on the first system with which the UE is communicating.

[0126] In some cases, UEs equipped with different USIMs may have paging conflicts resulting in lost paging. When a UE receives a paging in a second system while actively communicating with a first system, the UE may need to decide whether the UE should respond to the paging. When the UE decides to respond to the paging in the second system, the UE may need to stop the current activity in the first system. For example, the first system may suspend or release an ongoing connection with the UE.

[0127] For MUSIM operation, a MUSIM device in RRC_CONNECTED state in network A may have to switch from network A to network B. For example, network A may be NR and network B may be E-UTRA or NR. Before switching from network A, the MUSIM device should notify network A and either leave the RRC_CONNECTED state or remain in the RRC_CONNECTED state in network A while temporarily switching to network B.

[0128] For example, when configured to do so, the MUSIM device may signal a preference to leave the RRC_CONNECTED state by using RRC or NAS signaling to network A. After sending a preference to leave the RRC_CONNECTED state by using RRC signaling, if the MUSIM device does not receive an RRCRelease message from network A within a certain period of time (configured by network A), the MUSIM device may enter the RRC_IDLE state in network A.

[0129] For example, when configured to do so, the MUSIM device may signal to network A a preference to temporarily switch to network B while maintaining the RRC_CONNECTED state in the network. This is indicated by a scheduling gap preference. The preference may include information to set or release gaps. Network A may configure up to 4 gap patterns for MUSIM purposes: three periodic gaps and a single aperiodic gap. Network A shall always provide at least one of the requested gap pattern or no gaps. The network may provide an alternative gap pattern instead of the gap pattern requested by the UE.

[0130] In the present disclosure, if the capability of the UE does not support simultaneous execution of an operation on the first radio resource and an operation on the second radio resource, it may be referred to as a capability conflict between the first radio resource and the second radio resource, and / or a conflict between the first radio resource and the second radio resource. A capability conflict may occur in MUSIM operation, for example, between a first radio resource in network A and a second radio resource in network B.

[0131] Hereinafter, an Early Measurement Report (EMR) is described. For example, EMR may include a UE reporting a measurement result to a network when establishing or resuming a connection with the network.

[0132] Fig. 9 An example of an EMR process according to an embodiment of the present disclosure is shown.

[0133] Reference Fig. 9 In step S901, the UE may receive an RRC release message (i.e., RRCRelease) from the network. The RRC release message may include a measurement configuration for the non-connected mode (i.e., measIdleConfig). The measurement configuration for the non-connected mode may include at least one of an indication to perform measurements in the non-connected mode or a frequency list to be measured during the non-connected mode (i.e., measIdleCarrierListNR / measIdleCarrierListEUTRA). The non-connected mode may include at least one of an inactive mode (e.g., RRC_INACTIVE) or an idle mode (i.e., RRC_IDLE).

[0134] After receiving the RRC Release message, the UE shall:

[0135] 1> If RRCRelease includes measIdleConfig:

[0136] 2> If T331 is running:

[0137] 3> Stop timer T331;

[0138] 2>If measIdleConfig is set to setup:

[0139] 3>Store the received measIdleDuration in VarMeasIdleConfig;

[0140] 3>Start timer T331 with the value set to measIdleDuration;

[0141] 3>If measIdleConfig contains measIdleCarrierListNR:

[0142] 4>Store the received measIdleCarrierListNR in VarMeasIdleConfig;

[0143] 3>If measIdleConfig contains measIdleCarrierListEUTRA:

[0144] 4>Store the received measIdleCarrierListEUTRA in VarMeasIdleConfig;

[0145] 3>If measIdleConfig contains validityAreaList:

[0146] 4>Store the received validityAreaList in VarMeasIdleConfig;

[0147] In step S903, the UE may release / suspend the connection with the network after receiving the RRC release message. For example, the UE may release the connection with the network and enter the idle mode after receiving the RRC release message. For another example, the UE may suspend the connection with the network and enter the inactive mode after receiving the RRC release message.

[0148] In step S905, the UE may perform measurement in the non-connected mode based on the measurement configuration for the non-connected mode. The UE may perform measurement for the frequency list in the measurement configuration and obtain measurement results related to the non-connected mode. A UE in RRC_IDLE or in RRC_INACTIVE may obtain RSRP and RSRQ measurement results for each cell associated with the carrier based on the parameters configured in measIdleCarrierListNR / measIdleCarrierListEUTRA in VarMeasIdleConfig.

[0149] In step S907, when establishing / restoring a connection with the network, the UE may report measurement results related to the non-connected mode.

[0150] For example, when establishing a connection with the network, the UE may report measurement results related to the non-connected mode. The UE may receive an RRCSetup message from the network during the RRC connection establishment process, and may send an RRCSetupComplete message including the availability of measurement results related to the non-connected mode (i.e., idleMeasAvailable). The UE may then receive a UEInformationRequest message. Based on the UEInformationRequest message (i.e., idleModeMeasurementReq) including a request to report measurement results related to the non-connected mode, the UE may send a UEInformationResponse message including measurement results related to the non-connected mode.

[0151] For example, when the connection with the network is restored, the UE may report the measurement results related to the non-connected mode. The UE may receive an RRCResume message from the network during the RRC connection recovery process. Based on the RRCResume message (i.e., idleModeMeasurementReq) including a request to report the measurement results related to the non-connected mode, the UE may send an RRCResumeComplete message including the measurement results related to the non-connected mode. Based on the RRCResume message that does not include a request to report the measurement results related to the non-connected mode, the UE may send an RRCResumeComplete message including the availability of the measurement results related to the non-connected mode (i.e., idleMeasAvailable). Then, the UE may receive a UEInformationRequest message. Based on the UEInformationRequest message (i.e., idleModeMeasurementReq) including a request to report the measurement results related to the non-connected mode, the UE may send a UEInformationResponse message including the measurement results related to the non-connected mode.

[0152] In step S909 , the UE may be in a connected mode (ie, RRC_CONNECTED).

[0153] In the following, the SCell activation / deactivation mechanism is described.

[0154] In order to enable reasonable UE battery consumption when CA is configured, an activation / deactivation mechanism for cells is supported. When a SCell is deactivated, the UE does not need to receive the corresponding PDCCH or PDSCH, cannot transmit in the corresponding uplink, and does not need to perform CQI measurements. Conversely, when the SCell is active, the UE will receive PDSCH and PDCCH (if the UE is configured to monitor PDCCH from that SCell) and is expected to be able to perform CQI measurements. NG-RAN ensures that when a PUCCH SCell (a secondary cell configured with PUCCH) is deactivated, the SCells of the secondary PUCCH group (the SCell group whose PUCCH signaling is associated with the PUCCH on the PUCCH SCell) should not be activated. NG-RAN ensures that the SCell mapped to the PUCCH SCell is deactivated before the PUCCH SCell is changed or removed.

[0155] When reconfiguring the set of serving cells:

[0156] - Initially activate or deactivate the SCell added to the set;

[0157] - The SCells remaining (unchanged or reconfigured) in the set do not change their activation state (activated or deactivated).

[0158] On handover or connection recovery from RRC_INACTIVE:

[0159] -SCell is activated or deactivated.

[0160] In order to enable reasonable UE battery consumption when BA is configured, only one ULBWP and one DLBWP for each uplink carrier or only one DL / ULBWP pair can be active at a time in the active serving cell, and all other BWPs with which the UE is configured are deactivated. On a deactivated BWP, the UE does not monitor PDCCH, does not transmit on PUCCH, PRACH and UL-SCH.

[0161] To enable fast SCell activation when CA is configured, a dormant BWP can be configured for the SCell. If the active BWP of the activated SCell is the dormant BWP, the UE stops monitoring PDCCH and sending SRS / PUSCH / PUCCH on the SCell, but continues to perform CSI measurements, AGC and beam management if configured. DCI is used to control entry / exit of the dormant BWP for one or more SCells or one or more SCell groups.

[0162] The dormant BWP is one of the dedicated BWPs of the UE configured by the network via dedicated RRC signaling. SpCell and PUCCH SCell cannot be configured with a dormant BWP.

[0163] To enable fast SCell activation when CA is configured, aperiodic CSI-RS can be configured for SCells to track fast SCell activation to assist AGC and time / frequency synchronization. MAC CE is used to trigger the activation of one or more SCells and trigger aperiodic CSI-RS to track fast SCell activation of (a group of) deactivated SCells.

[0164] If the MAC entity is configured with one or more SCells, the network can activate and deactivate the configured SCells. Once the SCell is configured, the SCell is deactivated unless the upper layer sets the parameter sCellState to activated for the SCell.

[0165] The configured SCell is activated and deactivated in the following ways:

[0166] -Receive SCell activation / deactivation MAC CE;

[0167] -Receive enhanced SCell activation / deactivation MAC CE;

[0168] - Configure the sCellDeactivationTimer timer according to the configured SCell (except the SCell configured with PUCCH, if any): deactivate the associated Scell ​​when the timer expires;

[0169] -Configure sCellState according to the configured SCell: If configured, activate the associated SCell after the SCell configuration;

[0170] -Receive scg-State: The SCell of SCG is deactivated.

[0171] For each configured SCell, the MAC entity shall:

[0172] 1> If the SCell is configured with an sCellState set to be activated after SCell configuration, or an SCell activation / deactivation MAC CE or enhanced SCell activation / deactivation MAC CE is received, activate the SCell:

[0173] 2> If the SCell is deactivated before receiving the enhanced SCell activation / deactivation MAC CE, and TRS is indicated for the SCell:

[0174] 3>Indicates information about TRS to lower layers.

[0175] 2> If the SCell is deactivated before receiving the SCell activation / deactivation MAC CE or the enhanced SCell activation / deactivation MAC CE; or

[0176] 2> If the SCell is configured with an sCellState set to be activated after SCell configuration:

[0177] 3> If firstActiveDownlinkBWP-Id is not set to a dormant BWP:

[0178] 4> Activating the SCell according to the timing for MAC CE activation and according to the timing for direct SCell activation; that is, applying normal SCell operation includes:

[0179] 5>SRS transmission on the SCell;

[0180] 5> CSI report for the SCell;

[0181] 5>PDCCH detection on the SCell;

[0182] 5>PDCCH monitoring for the SCell;

[0183] 5> If configured, PUCCH transmission on the SCell.

[0184] 3> Otherwise (i.e., firstActiveDownlinkBWP-Id is set to dormantBWP):

[0185] 4>Stop the bwp-InactivityTimer of the serving cell if it is running.

[0186] 3>Activate the DLBWP and ULBWP indicated by firstActiveDownlinkBWP-Id and firstActiveUplinkBWP-Id respectively.

[0187] 2> Start or restart the sCellDeactivationTimer associated with the Scell ​​according to the timing for MAC CE activation and according to the timing for direct SCell activation;

[0188] 2> If the active DLBWP is not the dormant BWP:

[0189] 3> (Re)initialize any suspended configured uplink grant of configured grant type 1 associated with this SCell according to the stored configuration (if any) and start in symbol;

[0190] 3>Trigger PHR.

[0191] 1> Otherwise, if an SCell activation / deactivation MAC CE or an enhanced SCell activation / deactivation MAC CE is received, the SCell is deactivated; or

[0192] 1> if the sCellDeactivationTimer associated with the activated SCell expires; or

[0193] 1> If the SCG associated with the activated SCell is deactivated:

[0194] 2> deactivating the Scell;

[0195] 2> Stop the sCellDeactivationTimer associated with the SCell;

[0196] 2> Stop the bwp-InactivityTimer associated with the SCell;

[0197] 2> Deactivate any active BWP associated with the SCell;

[0198] 2> Clear any configured downlink assignment and any configured uplink grant type 2 associated with the SCell respectively;

[0199] 2> Clear any PUSCH resources associated with the SCell for semi-persistent CSI reporting;

[0200] 2>Suspend any configured uplink grant type 1 associated with the SCell;

[0201] 2> Refresh all HARQ buffers associated with the SCell;

[0202] 2>Cancel, if any, trigger-consistent LBT failure for the Scell.

[0203] 1> If the PDCCH on the activated SCell indicates an uplink grant or a downlink assignment; or

[0204] 1> if the PDCCH on the serving cell scheduling the activated SCell indicates an uplink grant or downlink assignment for the activated SCell; or

[0205] 1> if the MAC PDU is sent in a configured uplink grant and no LBT failure indication is received from lower layers; or

[0206] 1> If a MAC PDU is received in a configured downlink assignment:

[0207] 2>Restart the sCellDeactivationTimer associated with the SCell.

[0208] 1> If the SCell is deactivated:

[0209] 2> Do not send SRS on the SCell;

[0210] 2> Do not report the CSI for the Scell;

[0211] 2> Not sending on the UL-SCH on the SCell;

[0212] 2> RACH uplink transmission not on SCell;

[0213] 2>Do not monitor the PDCCH on SCell;

[0214] 2>Do not monitor the PDCCH for SCell;

[0215] 2>Do not send PUCCH on SCell.

[0216] HARQ feedback for MAC PDU containing SCell activation / deactivation MAC CE or enhanced SCell activation / deactivation MAC CE should not be affected by the interruption of Pcell, PSCell and PUCCH SCell due to SCell activation / deactivation.

[0217] When the SCell is deactivated, the random access procedure (if any) in progress on the SCell is terminated.

[0218] Meanwhile, the MUSIM function may support a scenario in which SIM A (ie, network A) and SIM B (ie, network B) establish each RRC connection and simultaneously transmit / receive data.

[0219] In this case, network A may configure a measurement idle configuration, ie, measIdleConfig, to support fast SCell activation based on an early measurement report including measurement results in the RRC_IDLE / RRC_INACTIVE state according to the measurement idle configuration.

[0220] If some measurement results of a frequency are reported to network A via early measurement reports, and the measurement results of the frequency may cause a temporary hardware conflict of the UE due to operation in a specific frequency of network B, the SCell data transmission of the frequency may be delayed even if the network commands fast SCell activation.

[0221] Fig.10 An example of a method performed by a UE according to an embodiment of the present disclosure is shown. The method may also be performed by a wireless device.

[0222] Reference Fig.10 In step S1001, the UE may establish a connection with the first network.

[0223] In step S1003, the UE may receive a release message including information on the frequency list from the first network.

[0224] In step S1005, after releasing or suspending the connection with the first network, the UE may obtain measurement results for the frequencies in the frequency list.

[0225] In step S1007, the UE may establish a connection with the second network. For example, the UE may determine a MUSIM switch and / or a network switch from the first network to the second network, and establish a connection with the second network based on the determination.

[0226] In step S1009, the UE may perform operations on the serving frequency of the second network based on the connection with the second network.

[0227] In step S1011, based on the conflict between at least one first frequency in the frequency list and the service frequency of the second network, the UE may send a message including a measurement result of at least one second frequency other than the at least one first frequency in the frequency list to the first network.

[0228] According to various embodiments, the at least one first frequency that conflicts with the service frequency of the second network may include that the capability of the UE cannot support the operation on the at least one first frequency and the operation on the service frequency of the second network at the same time. The at least one first frequency may conflict with the service frequency of the second network based on at least one of the following: the at least one first frequency is adjacent to the service frequency of the second network; the at least one first frequency at least partially overlaps with the service frequency of the second network; or the at least one first frequency includes the service frequency of the second network.

[0229] According to various embodiments, the UE may discard the measurement result for the at least one first frequency.The message may not include the measurement result for the at least one first frequency.

[0230] According to various embodiments, the message may also include at least one of the following: a measurement result for the at least one first frequency; or a conflict indication for each of the at least one first frequency. The message may also include a cause for the conflict indication for a multiple universal subscriber identity module (MUSIM) operation setting associated with the first network and the second network.

[0231] According to various embodiments, a message including a measurement result for at least one second frequency may be transmitted in a UE information procedure.

[0232] For example, the UE may release the connection with the first network upon receiving a release message from the first network. The UE may receive a radio resource control (RRC) setup message from the first network. The UE may send an RRC setup complete message to the first network, the RRC setup complete message including the availability of the measurement results stored in the UE. The UE may receive a UE information request message from the first network during a UE information procedure, the UE information request message including a request to report the measurement results stored in the UE. The UE may send a UE information response message including the measurement results for the at least one second frequency to the first network during the UE information procedure.

[0233] For example, the UE may suspend connection with the first network after receiving a release message from the first network. The UE may receive a radio resource control (RRC) resume message from the first network. The UE may send an RRC resume complete message including availability of measurement results stored in the UE to the first network. The UE may receive a UE information request message from the first network during a UE information procedure, the UE information request message including a request to report measurement results stored in the UE. The UE may send a UE information response message including measurement results for at least one second frequency to the first network during the UE information procedure.

[0234] According to various embodiments, a message including measurement results for at least one second frequency may be transmitted during a radio resource control (RRC) recovery procedure.

[0235] For example, the UE may suspend the connection with the first network after receiving the release message from the first network. The UE may receive a radio resource control (RRC) resume message from the first network during the RRC resume procedure, the RRC resume message including a request to report the measurement result stored in the UE. The UE may send an RRC resume complete message to the first network during the RRC resume procedure, the RRC resume complete message including the measurement result for the at least one second frequency.

[0236] According to various embodiments, the UE may be a multi-universal subscriber identity module (MUSIM) UE equipped with a USIM including a first SIM and a second SIM. The UE may register with the first network based on the subscription information stored in the first SIM. The UE may register with the second network based on the subscription information stored in the second SIM.

[0237] Fig.11 An example of a signal flow between a UE and a network node according to an embodiment of the present disclosure is shown. The network node may include a network node in a first network (ie, network 1) and a network node in a second network (ie, network 2), and each network node may include a base station (BS).

[0238] Reference Fig.11 In step S1101, the UE may register with the first network and the second network.

[0239] In step S1103, the network node in the first network may establish a connection with the UE.

[0240] In step S1105, the network node in the first network may send a release message including information on the frequency list to the UE.

[0241] In step S1107, the UE may release / suspend the connection with the first network.

[0242] In step S1109, the UE may obtain measurement results for the frequencies in the frequency list.

[0243] In step S1111, a network node in the first network may establish a connection with the UE.

[0244] In step S1113, the UE may perform operations on the serving frequency of the second network.

[0245] In step S1115 , the network node in the first network may send a request for reporting a measurement result for the frequency list to the UE.

[0246] In step S1117, the UE may detect at least one first frequency in the frequency list that conflicts with the serving frequency of the second network.

[0247] In step S1119, the network node may receive, from the UE, a message including a measurement result for at least one second frequency other than the at least one first frequency in the frequency list.

[0248] Hereinafter, a method for reporting a measurement result when a conflict occurs in a MUSIM operation is described.

[0249] Method 1) Partial report of early measurement results

[0250] According to an implementation of the present disclosure, while performing multi-USIM operations, when the first network requests the UE to report available early measurement results, the UE can determine whether the early measurement results will result in a CA / DC configuration that cannot be fully supported due to a capability conflict / limitation caused by capabilities used to operate with the second network (i.e., an incomplete CA / DC configuration).

[0251] If the UE determines that the measurement result may cause problems such as incomplete CA / DC configuration and / or capability conflict, the UE may select a measurement result from available early measurement results and report the selected result to the first network such that the reported result is not expected to cause such problems.

[0252] In order to select measurement results to be reported, the UE may exclude some stored early measurement results related to at least one frequency that may cause the problem if the serving cell is configured for CA / DC on the frequency in the first network, or if radio resources related to the frequency are configured in the first network.

[0253] In order to select measurement results to be reported, if the available measurement results include measurement results related to at least one frequency that may cause such a problem, if the serving cell is configured for CA / DC on the frequency in the first network, or if radio resources related to the frequency are configured in the first network, the UE may discard all stored earlier measurement results.

[0254] After excluding or discarding the measurement results, the measurement results may not be selected for early measurement reporting. If this occurs during RRC connection recovery, the UE may not include any early measurement results in the RRC recovery complete message. If this occurs during RRC connection establishment, the UE may not include an availability indication indicating that early measurement results are available in the RRC establishment complete message.

[0255] In some implementations, the UE shall perform the following actions after receiving RRCSetup:

[0256] 1> Set the content of the RRCSetupComplete message as follows:

[0257] 2> if SIB1 contains idleModeMeasurementsNR and the UE has NR idle / inactive measurement information for cells other than PCell available in VarMeasIdleReport; or

[0258] 2> If SIB1 contains idleModeMeasurementsEUTRA and the UE has E-UTRA idle / inactive measurement information available in VarMeasIdleReport:

[0259] 3> For each entry in measIdleCarrierListNR within VarMeasIdleConfig that contains ssb-MeasConfig:

[0260] 4> If a temporary hardware conflict occurs or will occur for carrierFreq in measIdleCarrierListNR when operating with MUSIM (i.e., a reduced capability change of the UE is required or will be required):

[0261] 5>Discard the stored measurement results of carrierFreq in measIdleCarrierListNR in VarMeasIdleReport;

[0262] 3>For each entry in measIdleCarrierListEUTRA in VarMeasIdleConfig:

[0263] 4> If a temporary hardware conflict occurs or will occur for carrierFreqEUTRA in measIdleCarrierListEUTRA when operating with MUSIM (i.e., a reduced capability change of the UE is required or will be required):

[0264] 5>Discard the stored measurement results of carrierFreqEUTRA in measIdleCarrierListEUTRA in VarMeasIdleReport;

[0265] 3> if the UE still has NR idle / inactive measurement information about cells other than PCell available in VarMeasIdleReport; or

[0266] 3> If the UE still has EUTRA idle / inactive measurement information about cells other than PCell available in VarMeasIdleReport:

[0267] 4> Include the idleMeasAvailable;

[0268] 1> The RRCSetupComplete message is submitted to the lower layers for transmission and the process ends.

[0269] In some implementations, upon receiving the RRCResume message, the UE shall:

[0270] 1> Set the content of the RRCResumeComplete message as follows:

[0271] 2> If the UE has idle / inactive measurement information about cells other than PCell available in VarMeasIdleReport:

[0272] 3> If idleModeMeasurementReq is included in the RRCResume message:

[0273] 4> For each entry in measIdleCarrierListNR within VarMeasIdleConfig that contains ssb-MeasConfig:

[0274] 5> If a temporary hardware conflict occurs or will occur for carrierFreq in measIdleCarrierListNR when operating with MUSIM (i.e., a reduced capability change of the UE is required or will be required):

[0275] 6>Discard the stored measurement results of carrierFreq in measIdleCarrierListNR in VarMeasIdleReport;

[0276] 4> For each entry in measIdleCarrierListEUTRA in VarMeasIdleConfig:

[0277] 5> If a temporary hardware conflict occurs or will occur for carrierFreqEUTRA in measIdleCarrierListEUTRA while in MUSIM operation (i.e., a reduced capability change of the UE is required or will be required):

[0278] 6>Discard the stored measurement results of carrierFreqEUTRA in measIdleCarrierListEUTRA in VarMeasIdleReport;

[0279] 4> Set measResultIdleEUTRA in the RRCResumeComplete message to the value of measReportIdleEUTRA in VarMeasIdleReport, if applicable;

[0280] 4> Set measResultIdleNR in the RRCResumeComplete message to the value of measReportIdleNR in VarMeasIdleReport, if applicable;

[0281] 4>When the successful delivery of the RRCResumeComplete message is confirmed by the lower layer, the VarMeasIdleReport is discarded;

[0282] 3> Otherwise:

[0283] 4> if SIB1 contains idleModeMeasurementsNR and the UE has NR idle / inactive measurement information about cells other than PCell available in VarMeasIdleReport; or

[0284] 4> If SIB1 contains idleModeMeasurementsEUTRA and the UE has E-UTRA idle / inactive measurement information available in VarMeasIdleReport:

[0285] 5>For each entry in measIdleCarrierListNR within VarMeasIdleConfig that contains ssb-MeasConfig:

[0286] 6> If a temporary hardware conflict occurs or will occur for carrierFreq in measIdleCarrierListNR when operating with MUSIM (i.e., a reduced capability change of the UE is required or will be required):

[0287] 7>Discard the stored measurement results of carrierFreq in measIdleCarrierListNR in VarMeasIdleReport;

[0288] 5>For each entry in measIdleCarrierListEUTRA in VarMeasIdleConfig:

[0289] 6> If a temporary hardware conflict occurs or will occur for carrierFreqEUTRA in measIdleCarrierListEUTRA while in MUSIM operation (i.e., a reduced capability change of the UE is required or will be required):

[0290] 7>Discard the stored measurement results of carrierFreqEUTRA in measIdleCarrierListEUTRA in VarMeasIdleReport;

[0291] 5> if the UE still has NR idle / inactive measurement information about cells other than PCell available in VarMeasIdleReport; or

[0292] 5> If the UE still has E-UTRA idle / inactive measurement information available in VarMeasIdleReport:

[0293] 6>include idleMeasAvailable;

[0294] 1> Submit the RRCResumeComplete message to the lower layer for transmission

[0295] In some implementations, upon receiving the UEInformationRequest message, the UE shall, only after successful security activation:

[0296] 1> If idleModeMeasurementReq is included in UEInformationRequest and the UE has stored VarMeasIdleReport containing measurement information about cells other than PCell:

[0297] 2> For each entry in measIdleCarrierListNR within VarMeasIdleConfig that contains ssb-MeasConfig:

[0298] 3> If a temporary hardware conflict occurs or will occur for carrierFreq in measIdleCarrierListNR when operating with MUSIM (i.e., a reduced capability change of the UE is required or will be required):

[0299] 4>Discard the stored measurement results of carrierFreq in measIdleCarrierListNR in VarMeasIdleReport;

[0300] 2> For each entry in measIdleCarrierListEUTRA in VarMeasIdleConfig:

[0301] 3> If a temporary hardware conflict occurs or will occur for carrierFreqEUTRA in measIdleCarrierListEUTRA when operating with MUSIM (i.e., a reduced capability change of the UE is required or will be required):

[0302] 4>Discard the stored measurement results of carrierFreqEUTRA in measIdleCarrierListEUTRA in VarMeasIdleReport;

[0303] 2> Set measResultIdleEUTRA in the UEInformationResponse message to the value of measReportIdleEUTRA in VarMeasIdleReport, if applicable;

[0304] 2> Set measResultIdleNR in UEInformationResponse message to the value of measReportIdleNR in VarMeasIdleReport, if applicable;

[0305] 2>After the successful delivery of the UEInformationResponse message is confirmed by the lower layers, the VarMeasIdleReport is discarded;

[0306] 1>Submit the UEInformationResponse message to the lower layers for transmission.

[0307] Method 2) is indicative of a conflict with the ability of the complete earlier measurement results.

[0308] According to an implementation of the present disclosure, while performing multi-USIM operations, when the first network requests the UE to report available early measurement results, the UE can determine whether the early measurement results will result in a CA / DC configuration that cannot be fully supported due to a capability conflict / limitation caused by capabilities used to operate with the second network (i.e., an incomplete CA / DC configuration).

[0309] If the UE determines that the measurement result may cause problems such as incomplete CA / DC configuration and / or capability conflicts, the UE may report available early measurement results, but also include information indicating that the early measurement results may cause problems such as incomplete CA / DC configuration and / or capability conflicts. The information may indicate that the problem is due to MUSIM operation. If configured as a serving frequency or if radio resources of the frequency are used in the first network, the information may include an indication of the frequency that will have problems. The frequency indication may be included in the measurement results per frequency. The network may wish to include the frequency information of the indication to check the frequency list where the UE currently has a temporary hardware conflict due to MUSIM operation as early as possible.

[0310] In some implementations, upon receiving the RRCResume message, the UE shall:

[0311] 1> Set the content of the RRCResumeComplete message as follows:

[0312] 2> If the UE has idle / inactive measurement information about cells other than PCell available in VarMeasIdleReport:

[0313] 3> If idleModeMeasurementReq is included in the RRCResume message:

[0314] 4> For each entry in measIdleCarrierListNR within VarMeasIdleConfig that contains ssb-MeasConfig:

[0315] 5> If a temporary hardware conflict occurs or will occur for carrierFreq in measIdleCarrierListNR when operating with MUSIM (i.e., a reduced capability change of the UE is required or will be required):

[0316] 6> Set temporaryRestrictionRequired in carrierFreq in measIdleCarrierListNR in VarMeasIdleReport (e.g., 1 bit indication);

[0317] 4> For each entry in measIdleCarrierListEUTRA in VarMeasIdleConfig:

[0318] 5> If a temporary hardware conflict occurs or will occur for carrierFreqEUTRA in measIdleCarrierListEUTRA while in MUSIM operation (i.e., a reduced capability change of the UE is required or will be required):

[0319] 6> Set temporaryRestrictionRequired in carrierFreqEUTRA in measIdleCarrierListEUTRA in VarMeasIdleReport (e.g., 1 bit indication);

[0320] 4> Set measResultIdleEUTRA in the RRCResumeComplete message to the value of measReportIdleEUTRA in VarMeasIdleReport, if applicable;

[0321] 4> Set measResultIdleNR in the RRCResumeComplete message to the value of measReportIdleNR in VarMeasIdleReport, if applicable;

[0322] 4>After the successful delivery of the RRCResumeComplete message is confirmed by the lower layer, the VarMeasIdleReport is discarded;

[0323] 3> Otherwise:

[0324] 4> if SIB1 contains idleModeMeasurementsNR and the UE has NR idle / inactive measurement information about cells other than PCell available in VarMeasIdleReport; or

[0325] 4> If SIB1 contains idleModeMeasurementsEUTRA and the UE has E-UTRA idle / inactive measurement information available in VarMeasIdleReport:

[0326] 5>include idleMeasAvailable;

[0327] 1>Submit the RRCResumeComplete message to the lower layers for transmission.

[0328] In some implementations, after receiving the UEInformationRequest message, the UE shall only after successful security activation:

[0329] 1> If idleModeMeasurementReq is included in UEInformationRequest and the UE has stored VarMeasIdleReport containing measurement information about cells other than PCell:

[0330] 2> For each entry in measIdleCarrierListNR within VarMeasIdleConfig that contains ssb-MeasConfig:

[0331] 3> If a temporary hardware conflict occurs or will occur for carrierFreq in measIdleCarrierListNR when operating with MUSIM (i.e., a reduced capability change of the UE is required or will be required):

[0332] 4> Set temporaryRestrictionRequired in carrierFreq in measIdleCarrierListNR in VarMeasIdleReport (e.g., 1 bit indication);

[0333] 2> For each entry in measIdleCarrierListEUTRA in VarMeasIdleConfig:

[0334] 3> If a temporary hardware conflict occurs or will occur for carrierFreqEUTRA in measIdleCarrierListEUTRA when operating with MUSIM (i.e., a reduced capability change of the UE is required or will be required):

[0335] 4> Set temporaryRestrictionRequired in carrierFreqEUTRA in measIdleCarrierListEUTRA in VarMeasIdleReport (e.g., 1 bit indication);

[0336] 2> Set measResultIdleEUTRA in the UEInformationResponse message to the value of measReportIdleEUTRA in VarMeasIdleReport, if applicable;

[0337] 2> Set measResultIdleNR in UEInformationResponse message to the value of measReportIdleNR in VarMeasIdleReport, if applicable;

[0338] 2>After the successful delivery of the UEInformationResponse message is confirmed by the lower layers, the VarMeasIdleReport is discarded;

[0339] 1>Submit the UEInformationResponse message to the lower layers for transmission.

[0340] In addition, it can be Figure 2 The first wireless device 100 and / or Figure 3 UE 100 shown in FIG. 1 is used to perform the present disclosure (eg, Fig.10 The method for the UE angle described in (in).

[0341] More specifically, the UE includes at least one transceiver, at least one processor, and at least one computer memory operatively connected to the at least one processor and storing instructions that perform operations based on execution by the at least one processor.

[0342] The operations include: receiving a release message including information on a frequency list from a first network; obtaining measurement results for frequencies in the frequency list after releasing or suspending a connection with the first network; establishing a connection with a second network; performing operations on a service frequency of the second network based on the connection with the second network; and sending a message including measurement results for at least one second frequency in the frequency list other than the at least one first frequency to the first network based on a conflict between at least one first frequency in the frequency list and a service frequency of the second network.

[0343] In addition, it is possible to store Figure 2The software code 105 in the memory 104 included in the first wireless device 100 shown executes the present disclosure (e.g., Fig.10 The method for the UE angle described in (in).

[0344] More specifically, at least one computer readable medium (CRM) stores instructions that, based on being executed by at least one processor, perform operations including the following: establishing a connection with a first network; receiving a release message including information for a frequency list from the first network; obtaining measurement results for frequencies in the frequency list after releasing or suspending the connection with the first network; establishing a connection with a second network; performing operations on a service frequency of the second network based on the connection with the second network; and sending a message including measurement results for at least one second frequency in the frequency list other than the at least one first frequency in the frequency list to the first network based on a conflict between at least one first frequency in the frequency list and a service frequency of the second network.

[0345] In addition, the control can be included in Figure 2 The processor 102 in the first wireless device 100 shown and / or by controlling the Figure 3 The processor 102 in the UE 100 shown in the figure executes the present disclosure (for example, Fig.10 The method for the UE angle described in (in).

[0346] More specifically, an apparatus configured / adapted to operate in a wireless communication system (e.g., a wireless device / UE) includes at least one processor and at least one computer memory operatively connected to the at least one processor. The at least one processor is configured / adapted to perform operations including: establishing a connection with a first network; receiving a release message including information on a frequency list from the first network; obtaining measurement results for frequencies in the frequency list after releasing or suspending the connection with the first network; establishing a connection with a second network; performing operations on a service frequency of the second network based on the connection with the second network; and sending a message including measurement results for at least one second frequency in the frequency list other than the at least one first frequency to the first network based on the conflict between the at least one first frequency in the frequency list and the service frequency of the second network.

[0347] In addition, it can be Figure 2 The second wireless device 200 shown in FIG. 1 is used to perform the present disclosure (eg, Fig.11 A method from the perspective of a network node in a first network described in (a).

[0348] More specifically, the network node includes at least one transceiver, at least one processor, and at least one computer memory operatively connected to the at least one processor and storing instructions that perform operations based on being executed by the at least one processor.

[0349] The operation includes: establishing a connection with a user equipment (UE); sending a release message including frequency list information to the UE; sending a request to the UE to report measurement results for the frequency list; and receiving a message including measurement results for at least one second frequency in the frequency list other than at least one first frequency from the UE, wherein the at least one first frequency conflicts with a service frequency of a second network, wherein the UE is configured to establish a connection with the second network and perform operations on the service frequency of the second network based on the connection with the second network.

[0350] The present disclosure may have various beneficial effects.

[0351] For example, the UE may report the measurement result for the conflicting frequency together with the conflict indication, or may not report the measurement result for the conflicting frequency.Therefore, the conflict can be resolved and data transmission delay can be prevented.

[0352] For example, when a MUSIM UE reports an early measurement report to the network, since the UE can check whether one or more frequencies will conflict with the configured frequency of another network (i.e., the frequency of the camping cell or serving cell) due to MUSIM operation, the UE prevents unnecessary data transmission delays caused by conflicts after activating the SCG / SCell on the frequency.

[0353] The beneficial effects that can be obtained by the specific embodiments of the present disclosure are not limited to the beneficial effects listed above. For example, there may be various technical effects that can be understood by a person skilled in the relevant art and / or derived from the present disclosure. Therefore, the specific effects of the present disclosure are not limited to those explicitly described herein, but may include various effects that can be understood or derived from the technical features of the present disclosure.

[0354] The claims in this disclosure may be combined in various ways. For example, the technical features in the method claims of this disclosure may be combined to be implemented or performed in a device, and the technical features in the device claims may be combined to be implemented or performed in a method. In addition, the technical features in the method claims and the device claims may be combined to be implemented or performed in a device. In addition, the technical features in the method claims and the device claims may be combined to be implemented or performed in a method. Other implementations are within the scope of the appended claims.

Claims

1. A method performed by a user equipment (UE) configured to operate in a wireless communication system, the method comprising: establishing a connection with a first network; receiving a release message including information for a frequency list from the first network; After releasing or suspending the connection with the first network, obtaining measurement results for frequencies in the frequency list; establishing a connection with a second network; performing operations on a serving frequency of the second network based on the connection with the second network; and Based on the conflict between at least one first frequency in the frequency list and the serving frequency of the second network, a message including a measurement result of at least one second frequency other than the at least one first frequency in the frequency list is sent to the first network.

2. The method according to claim 1, wherein: The at least one first frequency that conflicts with the serving frequency of the second network includes a capability of the UE being unable to support simultaneous operation on the at least one first frequency and operation on the serving frequency of the second network.

3. The method according to claim 1, wherein: The at least one first frequency conflicts with the serving frequency of the second network based on at least one of: A situation where the at least one first frequency is adjacent to the service frequency of the second network; The at least one first frequency at least partially overlaps with the serving frequency of the second network; or A case where the at least one first frequency includes the serving frequency of the second network.

4. The method according to claim 1, further comprising: discarding the measurement results for the at least one first frequency, The message does not include the measurement result for the at least one first frequency.

5. The method according to claim 1, wherein: The message also includes at least one of the following: a measurement result for the at least one first frequency; or A conflict indication is provided for each of the at least one first frequency.

6. The method according to claim 5, wherein: The message also includes a cause for the conflict indication for Multiple Universal Subscriber Identity Module (MUSIM) operational settings associated with the first network and the second network.

7. The method according to claim 1, wherein: A message including the measurement result for the at least one second frequency is transmitted during a UE information procedure.

8. The method according to claim 7, further comprising: After receiving the release message from the first network, releasing the connection with the first network; receiving a radio resource control (RRC) setup message from the first network; sending an RRC setup complete message to the first network, the RRC setup complete message including availability of the measurement result stored in the UE; and receiving a UE information request message from the first network during the UE information procedure, the UE information request message including a request for reporting measurement results stored in the UE, The sending of the message includes sending a UE information response message to the first network during the UE information process, and the UE information response message includes the measurement result for the at least one second frequency.

9. The method according to claim 7, further comprising: After receiving the release message from the first network, suspending the connection with the first network; receiving a radio resource control (RRC) resume message from the first network; sending an RRC recovery complete message to the first network, the RRC recovery complete message including availability of the measurement results stored in the UE; and receiving a UE information request message from the first network during the UE information procedure, the UE information request message including a request for reporting measurement results stored in the UE, The sending of the message includes sending a UE information response message to the first network during the UE information process, and the UE information response message includes the measurement result for the at least one second frequency.

10. The method according to claim 1, wherein: A message including the measurement result of the at least one second frequency is transmitted during a radio resource control, RRC, recovery procedure.

11. The method according to claim 10, further comprising: After receiving the release message from the first network, suspending the connection with the first network; receiving a radio resource control (RRC) recovery message from the first network during the RRC recovery procedure, the RRC recovery message including a request to report a measurement result stored in the UE, The sending of the message includes sending an RRC recovery complete message to the first network during the RRC recovery process, and the RRC recovery complete message includes the measurement result for the at least one second frequency.

12. The method according to claim 1, wherein: The UE is a Multi-Universal Subscriber Identity Module (MUSIM) UE equipped with a USIM, the USIM including a first SIM and a second SIM, and the method further includes: registering to the first network based on subscription information stored in the first SIM; and Registering to the second network based on the subscription information stored in the second SIM.

13. The method according to claims 1 to 12, wherein: The UE communicates with at least one of a mobile device, a network, or an autonomous vehicle.

14. A user equipment (UE) configured to operate in a wireless communication system, the UE comprising: at least one transceiver; at least one processor; as well as at least one memory operatively coupled to the at least one processor and storing instructions that upon execution by the at least one processor perform operations comprising: establishing a connection with a first network; receiving a release message including information for a frequency list from the first network; After releasing or suspending the connection with the first network, obtaining measurement results for frequencies in the frequency list; establishing a connection with a second network; performing operations on a serving frequency of the second network based on the connection with the second network; and Based on the conflict between at least one first frequency in the frequency list and the serving frequency of the second network, a message including a measurement result of at least one second frequency other than the at least one first frequency in the frequency list is sent to the first network.

15. The UE according to claim 14, wherein: The UE is arranged to implement a method according to one of claims 2 to 13.

16. A network node in a first network configured to operate in a wireless communication system, the network node comprising: at least one transceiver; at least one processor; as well as at least one memory operatively coupled to the at least one processor and storing instructions that upon execution by the at least one processor perform operations comprising: Establishing a connection with a user equipment UE; Sending a release message including information on the frequency list to the UE; sending a request to the UE for reporting a measurement result for the frequency list; as well as receiving, from the UE, a message including a measurement result for at least one second frequency other than at least one first frequency in the frequency list, wherein the at least one first frequency conflicts with a service frequency of the second network, and The UE is configured to establish a connection with the second network, and based on the connection with the second network, perform operations on the serving frequency of the second network.

17. A method performed by a network node in a first network configured to operate in a wireless communication system, the method comprising: Establishing a connection with a user equipment UE; Sending a release message including information on the frequency list to the UE; sending a request to the UE for reporting a measurement result for the frequency list; as well as receiving, from the UE, a message including a measurement result for at least one second frequency other than at least one first frequency in the frequency list, wherein the at least one first frequency conflicts with a service frequency of the second network, and The UE is configured to establish a connection with the second network, and based on the connection with the second network, perform operations on the serving frequency of the second network.

18. The method according to claim 17, wherein: The UE is arranged to implement a method according to one of claims 1 to 13.

19. A device adapted to operate in a wireless communication system, the device comprising: at least one processor; as well as at least one memory operatively coupled to the at least one processor and storing instructions that upon execution by the at least one processor perform operations comprising: establishing a connection with a first network; receiving a release message including information for a frequency list from the first network; After releasing or suspending the connection with the first network, obtaining measurement results for frequencies in the frequency list; establishing a connection with a second network; performing operations on a serving frequency of the second network based on the connection with the second network; and Based on the conflict between at least one first frequency in the frequency list and the serving frequency of the second network, a message including a measurement result of at least one second frequency other than the at least one first frequency in the frequency list is sent to the first network.

20. A non-transitory computer readable medium (CRM) storing program code implementing instructions, the instructions, upon execution by at least one processor, performing operations comprising: establishing a connection with a first network; receiving a release message including information for a frequency list from the first network; After releasing or suspending the connection with the first network, obtaining measurement results for frequencies in the frequency list; establishing a connection with a second network; performing operations on a serving frequency of the second network based on the connection with the second network; and Based on the conflict between at least one first frequency in the frequency list and the serving frequency of the second network, a message including a measurement result of at least one second frequency other than the at least one first frequency in the frequency list is sent to the first network.

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