Multi-universal user identification module user equipment and operation method thereof

Abstract

The present disclosure relates to a user equipment and method for operating a multi-universal subscriber identity module in a wireless communication system. The method includes: receiving a parameter of a first paging cycle configuration in a first broadcast information from a first network entity and receiving a parameter of a second paging cycle configuration in a second broadcast information from a second network entity. Subsequently, the method includes detecting one of the following: a conflict between a paging opportunity with the first paging cycle configuration and a paging opportunity with the second paging cycle configuration, a conflict between a paging opportunity with the first paging cycle configuration and a time-critical information broadcast from the second network entity, and a conflict between a paging opportunity with the second paging cycle configuration and a time-critical information broadcast from the first network entity.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Indian Provisional Application No. 201941018541 filed on May 9, 2019 and Indian Patent Application No. 201941018541 filed on May 7, 2020. The entire contents of the above applications are incorporated herein by reference for all purposes. Technical Field

[0003] The present disclosure relates generally to wireless communications. Embodiments of the present disclosure relate to 3rd Generation Partnership Project (3GPP) technologies. In particular, but not exclusively, certain embodiments relate to a Multi-Universal Subscriber Identity Module (MUSIM) User Equipment (UE) in a wireless communication system and a method for operating a MUSIM UE. Background Art

[0004] Telecommunication is a method of transmitting information between users using wires, radio, optics, or various other electromagnetic systems. Some modern communication systems use radio access technologies (RATs) to transmit information. An example of a RAT includes 3GPP's fifth generation (5G) network.

[0005] Communication networks can be configured to move and process large amounts of information. As technology advances, the amount of information transmitted to or from users becomes larger and more frequent. As the amount of information transmitted in the 5G network space becomes more frequent, there are conflict issues for network reliability.

[0006] A conflict refers to a situation where two or more network processing events occur simultaneously on a user equipment (UE). In some cases, the UE cannot handle multiple events. Paging and time-critical occasions are examples of processes that may cause conflicts, and when conflicts occur, the information provided by these processes may be interrupted or degraded. Therefore, there is a need in the art for a system that reduces communication interruptions or degradations.

[0007] The information disclosed in this background section of the present disclosure is for enhancing understanding of the general background of the present disclosure and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art known to a person skilled in the art. Summary of the invention

[0008] In an embodiment, the present disclosure may relate to a method for a multi-universal subscriber identity module (MUSIM) user equipment (UE) operating in a wireless communication system, the method comprising: receiving, by the UE, parameters of a first paging cycle configuration in first broadcast information from a first network entity and parameters of a second paging cycle configuration in second broadcast information from a second network entity; and detecting, by the UE, one of the following: a conflict between a paging opportunity with the first paging cycle configuration and a paging opportunity with the second paging cycle configuration; a conflict between a paging opportunity with the first paging cycle configuration and a time-critical information broadcast from the second network entity; and a conflict between a paging opportunity with the second paging cycle configuration and a time-critical information broadcast from the first network entity.

[0009] In an embodiment, the present disclosure may relate to a user equipment (UE) having a multi-universal subscriber identity module (MUSIM) operating in a wireless communication system, the UE comprising: a processor; and a memory, the memory being communicatively coupled to the processor, wherein the memory stores processor-executable instructions, which when executed cause the processor to: receive parameters of a first paging cycle configuration in first broadcast information from a first network entity and parameters of a second paging cycle configuration in second broadcast information from a second network entity; and detect one of the following: a conflict between a paging opportunity with the first paging cycle configuration and a paging opportunity with the second paging cycle configuration; a conflict between a paging opportunity with the first paging cycle configuration and a time-critical information broadcast from the second network entity; and a conflict between a paging opportunity with the second paging cycle configuration and a time-critical information broadcast from the first network entity.

[0010] In an embodiment, a method of wireless communication at a user equipment (UE) may include: receiving a first parameter for a first paging cycle configuration in a first broadcast information from a first network entity; receiving a second parameter for a second paging cycle configuration in a second broadcast information from a second network entity, wherein the second parameter is received in part based on a multi-universal subscriber identity module (MUSIM) of the UE; and detecting a paging conflict based on the first parameter and the second parameter.

[0011] The foregoing summary is illustrative only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings, which are incorporated into and constitute a part of the present disclosure, illustrate exemplary embodiments and, together with the description, are used to explain the principles disclosed. In the drawings, the leftmost digit of a reference number identifies the drawing in which the reference number first appears. The same reference numerals are used to refer to similar features and components throughout the drawings. Some embodiments of systems and / or methods according to embodiments of the present subject matter are described below, by way of example only, and with reference to the accompanying drawings.

[0013] Figures 1 to 3 Exemplary sequence diagrams illustrating various methods for handling conflicts between paging occasions on different USIMs and for handling conflicts between paging occasions on one USIM and time-critical information on other USIMs according to some embodiments of the present disclosure are shown.

[0014] Figures 4 to 6 Exemplary sequence diagrams illustrating various methods of handling a data session in one USIM and monitoring paging occasions or time-critical occasions on other USIMs according to some embodiments of the present disclosure are shown.

[0015] Fig. 7A and Figure 7B An exemplary sequence diagram illustrating a method of improving the time of one of a manual Public Land Mobile Network (PLMN) search or inter-frequency or inter-RAT (Radio Access Technology) measurement in a MUSIM device according to some embodiments of the present disclosure is shown.

[0016] Figure 8 An exemplary sequence diagram illustrating a method of notifying a network of the type / category of a dual / multi USIM device according to some embodiments of the present disclosure is shown.

[0017] Fig. 9 An exemplary sequence diagram illustrating a method of supporting simultaneous PS (Packet Switched) data sessions on two or more USIMs to improve network and UE performance according to some embodiments of the present disclosure is shown.

[0018] Fig.10 A detailed block diagram of a UE for operating a MUSIM in a wireless communication system according to some embodiments of the present disclosure is shown.

[0019] FIG. 11A to FIG. 11C A flow chart illustrating a method for MUSIM in a UE operating in a wireless communication system according to some embodiments of the present disclosure is illustrated.

[0020] Those skilled in the art will appreciate that any block diagram herein represents a conceptual diagram of an illustrative system that implements the principles of the present subject matter. Similarly, it will be understood that any flow chart, job diagram, state transition diagram, pseudo code, etc., represents various processes that can be substantially represented in a computer-readable medium and can be executed by a computer or processor, whether or not the computer or processor is explicitly shown. DETAILED DESCRIPTION

[0021] In this document, the word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any embodiment or implementation of the present subject matter described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0022] Although the present disclosure is susceptible to various modifications and alternative forms, its specific embodiments have been shown in the drawings by way of example and will be described in detail below. However, it should be understood that the specific embodiments are not intended to limit the present disclosure to the disclosed examples. On the contrary, the present disclosure will cover modifications, equivalents and alternative forms that fall within the scope of the present disclosure.

[0023] The terms "comprises," "includes," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a setup, apparatus, or method that includes a list of components or steps includes not only those components or steps, but also includes other components or steps not expressly listed or inherent to such setup, apparatus, or method. In other words, without further limitations, one or more elements in a system or device preceded by "comprises..." does not exclude the presence of other or additional elements in the system or method.

[0024] In the following detailed description of the embodiments of the present disclosure, reference is made to the drawings that form a part of the present disclosure, and the drawings are shown by way of illustration of specific embodiments in which the present disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present disclosure, and it should be understood that other embodiments may be utilized and changes may be made without departing from the scope of the present disclosure. Therefore, the following description should not be understood in a limiting sense.

[0025] A Multi-Universal Subscriber Identity Module (MUSIM) User Equipment (UE) may monitor paging and other time-critical opportunities, such as System Information Block (SIB), Cell Broadcast System (CBS), Multimedia Broadcast Multicast Service (MBMS), etc., on a network associated with a Universal Subscriber Identity Module (USIM). Typically, the network used with each USIM may independently determine different opportunities. The paging opportunities of one USIM may conflict with the paging and / or other time-critical opportunities of other USIMs. Because no standard mechanism is designed for MUSIM UEs from a 3GPP standardization perspective, these conflicts are handled according to the UE implementation. Therefore, when handling conflicts, information may not appear in the communication of paging or time-critical opportunities.

[0026] Figures 1 to 3 Exemplary sequence diagrams illustrating various methods for handling conflicts between paging occasions on different Universal Subscriber Identity Modules (USIMs) and for handling conflicts between paging occasions on one USIM and time-critical information broadcasts on other USIMs according to some embodiments of the present disclosure are shown. Figures 1 to 3 An alternative solution is provided to resolve paging conflicts on different USIMs of a Multi-Universal Subscriber Identity Module (MUSIM) device and conflicts between paging occasions on one USIM and time-critical occasions on different USIMs.

[0027] Reference Figure 1 , Figure 2 and Figure 3 , the UE may include a MUSIM operating in the wireless communication system. In an embodiment, the UE may handle two USIMs, i.e. Figure 1 , Figure 2 and Figure 3 SIM1 101 shown 1 and SIM2 101 2 In another embodiment, the UE can handle more than two USIMs. Figure 1 SIM1 101 1 may be associated with a first network entity (NW1) 103, and SIM2 101 2 May be associated with a second network entity (NW2) 105. NW1 103 and NW2 105 may belong to different network service providers or the same network service provider.

[0028] In step 107, SIM1 101 1Parameters of a first paging cycle configuration may be received in the first broadcast information from NW1 103. The parameters of the first paging cycle configuration may include at least a paging cycle rate, which is the number of paging message repetitions during a time period covering a number of paging cycles having the first paging cycle configuration. 2 The parameters of the second paging cycle configuration may be received in the second broadcast information from NW2 105. The parameters of the second paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles with the second paging cycle configuration. In step 111, the UE may register SIM1 101 with NW1 103. 1 Similarly, at step 113, the UE may register SIM2 101 with NW2 105. 2 At step 115, the UE may detect a conflict between a paging occasion having the first paging cycle configuration and a paging occasion having the second paging cycle configuration. In an embodiment, the UE may detect a conflict between a paging occasion having the first paging cycle configuration and a time critical information broadcast from NW2 105. In another embodiment, the UE may detect a conflict between a paging occasion having the second paging cycle configuration and a time critical information broadcast from NW1 103.

[0029] The time critical information broadcast may include timing related to a system information block (SIB) scheduling window, a cell broadcast service (CBS) transmission window, a multimedia broadcast multicast service (MBMS) transmission slot, and an observed time difference of arrival (OTDOA) measurement. The UE may detect a conflict based on parameters of the first paging cycle configuration and parameters of the second paging cycle configuration. The UE may determine that a time slot within a radio frame calculated according to the first paging cycle configuration and a UE identifier assigned by NW1 103 matches a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by NW2 105.

[0030] In an example embodiment, when the UE detects a conflict between a paging occasion with a first paging cycle configuration and a time critical information broadcast from NW2 105, the UE may determine that a time slot within a radio frame calculated according to the first paging cycle configuration and a UE identifier assigned by NW1 103 matches at least one time slot within a time window in which time critical information associated with NW2 105 is broadcast. The UE may prioritize reception of paging messages in time slots corresponding to the paging occasion with the first paging cycle configuration. In another example embodiment, when the UE detects a conflict between a paging occasion with a second paging cycle configuration and a time critical information broadcast from NW1 103, the UE may determine that a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by NW2 105 matches at least one time slot within a time window in which time critical information associated with NW1 103 is broadcast. The UE may prioritize reception of paging messages in time slots corresponding to the paging occasion with the second paging cycle configuration. At step 117, the UE may tune the radio frequency circuit in the first conflicting time slot to monitor SIM1 101 1 The UE may receive a paging opportunity or a time critical opportunity with a first paging cycle configuration from NW1 103 on the SIM2 101, and the UE may ignore the paging opportunity or the time critical opportunity with a first paging cycle configuration from NW1 103 on the SIM2 101. 2 The UE may re-tune the radio frequency circuit in the second conflict time slot to monitor the paging occasion with the second paging cycle configuration from NW2 105 on the SIM2 101. 2 The UE may receive a paging opportunity or a time critical opportunity with a second paging cycle configuration from NW2 105 on the SIM1 101, and the UE may ignore the paging opportunity or the time critical opportunity with a second paging cycle configuration from NW2 105 on the SIM1 101. 1 The UE may select the paging occasions or time-critical occasions to be monitored on each USIM so that the UE does not miss any paging or time-critical occasions for incoming services.

[0031] Reference Figure 2 , SIM1 101 1 Can receive calls from NW1 103( Figure 2 The parameters of the first paging cycle configuration in the first broadcast information of SIM2 101 (not shown). The parameters of the first paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles with the first paging cycle configuration. Similarly, SIM2 101 2 Can receive from NW2 105( Figure 2The parameters of the second paging cycle configuration in the second broadcast information (not shown in FIG. 1 ). The parameters of the second paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles with the second paging cycle configuration.

[0032] In step 201, the UE may register SIM1 101 with NW1 103. 1 Similarly, at step 203, the UE may register SIM2 101 with NW2 105. 2 . In step 205, the UE may detect a conflict between a paging opportunity with a first paging cycle configuration and a paging opportunity with a second paging cycle configuration. In an embodiment, the UE may detect a conflict between a paging opportunity with a first paging cycle configuration and a time critical information broadcast from NW2 105. In another embodiment, the UE may detect a conflict between a paging opportunity with a second paging cycle configuration and a time critical information broadcast from NW1 103. The time critical information broadcast may include opportunities related to a SIB scheduling window, a CBS transmission window, an MBMS transmission time slot, and an OTDOA measurement. The UE may detect a conflict based on parameters of the first paging cycle configuration and parameters of the second paging cycle configuration. The UE may determine that a time slot within a radio frame calculated according to the first paging cycle configuration and a UE identifier assigned by NW1 103 matches a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by NW2 105. In an embodiment, when the UE detects a conflict between a paging occasion with a first paging cycle configuration and a broadcast of time-critical information from NW2 105, the UE may determine that a time slot within a radio frame calculated according to the first paging cycle configuration and a UE identifier assigned by NW1 103 matches at least one time slot within a time window in which time-critical information associated with NW2 105 is broadcast, and may prioritize reception of a paging message in a time slot corresponding to the paging occasion with the first paging cycle configuration. In another embodiment, when the UE detects a conflict between a paging occasion with a second paging cycle configuration and a broadcast of time-critical information from NW1 103, the UE may determine that a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by NW2 105 matches at least one time slot within a time window in which time-critical information associated with NW1 103 is broadcast, and may prioritize reception of a paging message in a time slot corresponding to the paging occasion with the second paging cycle configuration.

[0033] In step 207, if the information about the paging cycle rate or the number of paging message repetitions during a time period covering several paging cycles is lost in one of the first paging cycle configuration and the second paging cycle configuration, the UE may send a paging message from SIM1 101 to NW1 103.1 In an embodiment, if information about the paging cycle rate or the number of paging message repetitions during a time period covering several paging cycles is lost in one of the first paging cycle configuration and the second paging cycle configuration, the UE may send a request from SIM2 101 to NW2 105. 2 A request to change the paging cycle configuration (or DRX cycle length).

[0034] In step 209, in response to the request for changing the paging cycle configuration sent by the UE to NW1 103, the UE may receive an ACK or NACK from NW1 103. Subsequently, after receiving the ACK signal, the UE may 1 In an embodiment, when the UE sends a request to change the paging cycle configuration (or DRX cycle length) to NW2 105, the UE may receive an ACK or NACK from NW2 105. Subsequently, after receiving the ACK signal, the UE may 2 105. The third paging cycle configuration may include at least a new paging cycle rate, a time offset for determining a time slot associated with a paging occasion, and a number of paging message repetitions during a time period covering several paging cycles having the third paging cycle configuration. 2 The UE may monitor the paging occasions of SIM1 101 based on the paging occasions with the second paging cycle configuration or based on the time critical occasions of the broadcast information. 1 The UE may request NW1 103 or NW2 105 to change the DRX cycle length or paging occasion. NW1 103 or NW2 105 honors the request made by the UE. Therefore, the UE does not miss any paging or time critical occasion for incoming services.

[0035] Therefore, according to some embodiments, a method of wireless communication at a user equipment (UE) may include: receiving a first parameter for a first paging cycle configuration in a first broadcast information from a first network entity, receiving a second parameter for a second paging cycle configuration in a second broadcast information from a second network entity, wherein the second parameter is partially based on a MUSIM reception of the UE; and detecting a paging conflict based on the first parameter and the second parameter.

[0036] In some examples, the paging conflict includes a conflict between a paging occasion having a first paging cycle configuration and a paging occasion having a second paging cycle configuration or a conflict between a paging occasion having the first paging cycle configuration and a time-critical information broadcast from a second network entity.

[0037] In some examples, the method further includes: tuning the radio frequency circuit to monitor a paging occasion having a first paging cycle configuration during a first conflict time slot; and re-tuning the radio frequency circuit to monitor a paging occasion having a second paging cycle configuration during a second conflict time slot.

[0038] Thus, in some cases, by detecting a paging conflict between networks serving the first SIM and the second SIM of the UE's MUSIM, the UE can resolve the conflict by tuning the radio to different frequencies at different times to receive paging information or other information broadcasts. This can enable the UE to communicate more efficiently using multiple SIMS.

[0039] Reference Figure 3 , SIM1 101 1 Can receive data from NW1( Figure 3 SIM2101 may further include parameters of the first paging cycle configuration in the first broadcast information of the SIM2101 (not shown). The parameters of the first paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles with the first paging cycle configuration. 2 Can receive data from NW2( Figure 3 The parameters of the second paging cycle configuration in the second broadcast information (not shown in FIG. 1 ) may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles with the second paging cycle configuration.

[0040] In step 301, the UE may register SIM1 101 with NW1 103. 1 Similarly, at step 303, the UE may register SIM2 101 with NW2 105. 2. In step 305, the UE may detect a conflict between a paging opportunity with a first paging cycle configuration and a paging opportunity with a second paging cycle configuration. In an embodiment, the UE may detect a conflict between a paging opportunity with a first paging cycle configuration and a time critical information broadcast from NW2 105. In another embodiment, the UE may detect a conflict between a paging opportunity with a second paging cycle configuration and a time critical information broadcast from NW1 103. The time critical information broadcast may include opportunities related to a SIB scheduling window, a CBS transmission window, an MBMS transmission time slot, and an OTDOA measurement. The UE may detect a conflict based on parameters of the first paging cycle configuration and parameters of the second paging cycle configuration. The UE may determine that a time slot within a radio frame calculated according to the first paging cycle configuration and a UE identifier assigned by NW1 103 matches a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by NW2 105. In an embodiment, when the UE detects a conflict between a paging occasion with a first paging cycle configuration and a broadcast of time-critical information from NW2 105, the UE may determine that a time slot within a radio frame calculated according to the first paging cycle configuration and a UE identifier assigned by NW1 103 matches at least one time slot within a time window in which time-critical information associated with NW2 105 is broadcast, and may prioritize reception of a paging message in a time slot corresponding to the paging occasion with the first paging cycle configuration. In another embodiment, when the UE detects a conflict between a paging occasion with a second paging cycle configuration and a broadcast of time-critical information from NW1 103, the UE may determine that a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by NW2 105 matches at least one time slot within a time window in which time-critical information associated with NW1 103 is broadcast, and may prioritize reception of a paging message in a time slot corresponding to the paging occasion with the second paging cycle configuration.

[0041] In steps 307 and 309, the UE may respectively receive the data from SIM1 101 1 and SIM2 101 2 Auxiliary information including a bitmap corresponding to a time slot is sent to at least one of NW1 103 and NW2 105, the bitmap indicating the availability of the UE radio frequency circuit for paging monitoring during each paging occasion or time critical occasion. One such example of a bitmap position that the UE can share with NW1 103 and NW2 105 is shown in Table 1 below. A value of 1 may indicate that a certain USIM is available for paging at that occasion. Each value may be separated by a DRX cycle length.

[0042] SIM-1 (DRX cycle = 32rf) 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 SIM-2 (DRX cycle = 32rf) 0 1 0 1 0 1 0 0 1 0 0 1 0 1 0 1 SIM-1 (DRX cycle = 128rf) 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 SIM-2 (DRX cycle = 32rf) 0 1 1 1 0 1 1 1 0 1 1 1 0 1 1 1

[0043] Table 1

[0044] In step 311, in response to sending the assistance information including the bitmap position for paging reception, the UE may, in SIM1101 1 103. Similarly, in step 313, in response to sending the assistance information including the bitmap position for paging reception, the UE may receive an ACK or NACK response from NW1 103 at SIM2 101. 2 At steps 315 and 317, the UE may monitor SIM2 101 based on the bitmap position for paging reception and the ACK response from NW2 105. 2 In steps 319 and 321, the UE may monitor SIM1 101 based on the bitmap position for paging reception and the ACK response from NW1 103. 1 Therefore, the UE may share the assistance information including a bitmap corresponding to the time slot, which indicates the availability of the UE radio frequency circuit for paging monitoring of at least one of NW1 103 and NW2 105, so that the UE does not miss any paging or time critical opportunity of the incoming service.

[0045] Figures 4 to 6 Exemplary sequence diagrams illustrating various methods of handling data sessions in one USIM and monitoring paging or time-critical occasions on other USIMs according to some embodiments of the present disclosure are shown.

[0046] In case of MUSIM, a user can start and continue a data session on one USIM while he / she wishes to receive any incoming services on the other USIM. In order to receive any incoming services on the other USIM, the UE can temporarily leave the existing network associated with the data session and monitor the paging opportunities and other time-critical opportunities on the other USIM (radio frequency (RF) interruption time on the other data session USIM). Currently, this situation is handled as a UE-specific implementation. However, since the network involved in the data session is unaware that the UE has temporarily moved to the other network (i.e., the RF circuit monitors the paging or time-critical opportunities on the other USIM), the network continues to allocate resources for the data session that may not be used by the UE. Once the UE moves back to the network associated with the data session by tuning back to the RF circuit, the UE can recover through retransmission. In order to maintain fairness in the allocation, this may result in the associated network imposing some penalties on the UE for not using the allocated resources, resulting in degradation of key performance indicators (KPIs) in subsequent resource allocations from the associated network. Figures 4 to 6An alternative is provided to handle simultaneous data sessions in one USIM of a MUSIM device and monitor paging or time critical occasions on the other USIM.

[0047] Reference Figure 4 , Figure 5 and Figure 6 , the UE may include a MUSIM operating in the wireless communication system. In an embodiment, the UE may handle two USIMs, namely SIM1 101 1 and SIM2 101 2 ,like Figure 4 , Figure 5 and Figure 6 In another embodiment, the UE can handle more than two USIMs. Figure 4 SIM1 101 1 may be associated with NW1 103, while SIM2 101 2 may be associated with NW2 105. NW1 103 and NW2 105 may belong to different network service providers or the same network service provider.

[0048] exist Figure 4 SIM1 101 1 The first paging cycle configuration parameters in the first broadcast information from NW1 103 may be received, and SIM2 101 2 The parameters of the second paging cycle configuration in the second broadcast information from NW2 105 may be received ( Figure 4 Parameters of the first paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles having the first paging cycle configuration. Parameters of the second paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles having the second paging cycle configuration.

[0049] In step 401, the UE may register SIM1 101 with NW1 103. 1 Similarly, at step 403, the UE may register SIM2 101 with NW2 105. 2 In step 405, the UE can obtain the 1 Initiate a data session with NW1 103. At step 407, the UE may inform NW1 103 of a paging cycle configuration having information about SIM2 101 calculated by using a DRX cycle length parameter received as part of the broadcast information from NW2 105. 2Additionally or alternatively, the network may inform NW1 103 about the SIM2 101 calculated based on the broadcast information received from NW2 105. 2 The time instances and their periodicity of the critical timing ( Figure 4 not shown).

[0050] Then, at step 409, SIM1 101 1 In step 411, based on the paging cycle configuration notified by the UE in step 407, data may not be scheduled from NW1 103. When the UE's radio circuit is tuned to SIM2 101 2 To monitor the paging occasions from NW2 105, NW1 103 associated with the data session may stop scheduling resources during the RF outage. 2 To monitor the paging occasions from NW2 105, NW1 103 associated with the data session may temporarily suspend the ongoing connection during the RF outage. Time critical occasions may include those related to SIB scheduling windows, CBS transmission windows, MBMS transmission time slots, and OTDOA measurements. Once SIM2 101 2 If the paging opportunity or time critical opportunity from NW2 105 on the UE ends, then in step 413, the UE may resume the paging opportunity on SIM1 101 1 The data session with NW1 103 on the UE can be resumed, and NW1 103 can start allocating resources after the resumption. Therefore, the UE can resume the data session with NW1 103 without losing the SIM2 101 associated with NW2 105. 2 In case of any paging or time-critical timing, the waste of network resources in NW1 103 is reduced.

[0051] exist Figure 5 SIM1 101 1 SIM2 101 may receive the parameters of the first paging cycle configuration in the first broadcast information from NW1 103. 2 The parameters of the second paging cycle configuration in the second broadcast information from NW2 105 may be received ( Figure 5 Parameters of the first paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles having the first paging cycle configuration. Parameters of the second paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles having the second paging cycle configuration.

[0052] In step 501, the UE may register SIM1 101 with NW1 103. 1 Similarly, at step 503, the UE may register SIM2 101 with NW2 105. 2 At step 505, the UE may request NW1 103 to configure discontinuous reception in connected mode (C-DRX) as follows: SIM1 101 1 C-DRX idle / sleep start and end time instances on SIM2 101 from NW2 105 2 In request mode, the UE can inform NW1 103 of the requested C-DRX for a specific purpose, such as paging or time-critical occasions. This information can help NW1 103 in scheduling, as NW1 103 can try to ensure that the UE is within the range of SIM1 101. 1 Monitoring SIM2 101 from NW2 105 2 The SIM2 101 enters DRX idle / sleep mode when a paging or time-critical timing occurs and monitors the SIM2 101 from the NW2 105. 2 Enter DRX wake-up after the paging or time-critical moment on the network ends.

[0053] Then, at step 507, SIM1 101 of the UE 1 At least one of an ACK response and a C-DRX configuration may be received from NW1 103. In step 509, SIM1 101 1 In step 511, data may not be scheduled from NW1 103, so that the UE can communicate data in SIM1 101. 1 At the same time, the UE can monitor SIM2 101 2 paging or time critical occasions from NW2 105 on the SIM card. Time critical occasions may include occasions related to SIB scheduling window, CBS transmission window, MBMS transmission time slot and OTDOA measurement. 2 If the paging occasion or time critical occasion from NW2 105 ends, then in step 513, the UE may resume using SIM1 101 by ending C-DRX sleep (i.e., performing C-DRX wake-up) according to the C-DRX configuration received from NW1 103. 1 The data session with NW1 103 can therefore be performed without losing access to SIM2 101 associated with NW2 105 in the UE. 2 In the case of paging or time-critical timing monitoring, the waste of network resources in NW1103 is reduced.

[0054] exist Figure 6 SIM1 101 1 The first paging cycle configuration parameters in the first broadcast information from NW1 103 may be received, and SIM2 101 2 The parameters of the second paging cycle configuration in the second broadcast information from NW2 105 may be received ( Figure 6 101). The parameters of the first paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles having the first paging cycle configuration. The parameters of the second paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles having the second paging cycle configuration. In step 601, the UE may register SIM1 101 with NW1 103. 1 Similarly, at step 603, the UE may register SIM2 101 with NW2 105. 2 At step 605, the UE may request NW1 103 to configure a gap similar to a measurement gap in the following manner: SIM1 101 1 The configured gap start and end times and SIM2 101 associated with NW2 105 2 In the request mode, the UE may inform NW1 103 what purpose the requested gap configuration is for, such as paging or time-critical timing. This information may help NW1 to schedule. Then, in step 607, SIM1 101 of the UE 1 At least one of an ACK response and a gap configuration indicating a gap intention may be received from NW1 103 so that the gap can be effectively used to monitor SIM2 101. 2 In step 609, SIM1 101 1 and NW1 103 may communicate data. In step 611, during the configured gap period (ie, from the first time slot to the last time slot within the configured gap time), data may not be scheduled from NW1 103. At the same time, the UE may monitor SIM2 101 2 The paging occasions or time critical occasions from NW2 105 on the SIM2 101 may include the occasions related to the SIB scheduling window, CBS transmission window, MBMS transmission time slot and OTDOA measurement. 2 If the paging opportunity or time critical opportunity from NW2 105 ends, then in step 613, the UE may resume using SIM1 101 by ending the configured gap period. 1The data session with NIM1 103 can therefore be restored without losing the SIM2 101 associated with NW2 105 in the UE. 2 In the case of paging or time-critical timing monitoring, the waste of network resources in NW1 103 is reduced.

[0055] Fig. 7A and Figure 7B An exemplary sequence diagram illustrating a method of improving the time of one of a manual Public Land Mobile Network (PLMN) search or inter-frequency or inter-RAT (Radio Access Technology) measurement in a MUSIM device according to some embodiments of the present disclosure is shown.

[0056] Currently, longer PLMN search times are observed in MUSIM devices compared to single USIM devices. The UE may temporarily suspend an ongoing manual PLMN search or one of the inter-frequency or inter-RAT measurements on one USIM in order to receive any incoming service on the other USIM to monitor paging and other time critical opportunities on the other USIM. Due to the suspension of the manual PLMN search or one of the inter-frequency or inter-RAT measurements, the operation of completing the manual PLMN search or one of the inter-frequency or inter-RAT measurements takes longer compared to single USIM devices. Fig. 7A and Figure 7B Optimizing one of manual PLMN search or inter-frequency or inter-RAT measurements in a MUSIM device is disclosed.

[0057] Reference Fig. 7A and Figure 7B , the UE may include a MUSIM operating in a wireless communication system. In an embodiment, the UE may handle two USIMs, i.e., Fig. 7A SIM1 101 shown 1 and SIM2 101 2 In another embodiment, the UE can handle more than two USIMs. Fig. 7A SIM1 101 1 may be associated with NW1 103, while SIM2 101 2 may be associated with NW2 105. NW1 103 and NW2 105 may belong to different network service providers or the same network service provider.

[0058] In step 701, SIM1 101 1Parameters of a first paging cycle configuration may be received in a first broadcast message from NW1 103. The parameters of the first paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering a number of paging cycles having the first paging cycle configuration. 2 The parameters of the second paging cycle configuration may be received in the second broadcast information from NW2 105. The parameters of the second paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles with the second paging cycle configuration. In step 707, the UE may register SIM1 101 with NW1 103. 1 Similarly, at step 709, the UE may register SIM2 101 with NW2 105. 2 .

[0059] In step 711, if Fig. 7A As shown, when SIM2 101 associated with NW2 2 When no paging opportunity or time critical opportunity is detected, the UE may select to use SIM2 101 of NW2 105 based on the parameters of the second paging configuration. 2 The non-paging period is set to 101 in SIM1 1 Perform a manual PLMN search or inter-frequency measurement or inter-RAT measurement on the Figure 7B As shown, when SIM2 101 2 When no paging opportunity or time critical opportunity is detected, the UE may select SIM1 101 based on the parameters of the first paging configuration. 1 The non-paging period is set to 101 in SIM1 1 Perform a manual PLMN search or inter-frequency measurement or inter-RAT measurement on SIM2 101. 2 When no paging opportunity or time critical opportunity is detected, the UE may select to use SIM2 101 of NW2 105 based on the parameters of the second paging configuration. 2 The non-paging period is set to 101 in SIM2 2 Perform a manual PLMN search or inter-frequency measurement or inter-RAT measurement on the Figure 7B not shown).

[0060] In steps 713 and 715, the UE may stop the ongoing 1 Perform one of the manual PLMN search or inter-frequency measurement or inter-RAT measurement in SIM2 101 and monitor 2The UE receives a paging opportunity or a time-critical opportunity with a second paging cycle configuration from NW2 105 on the USIM. The time-critical opportunity may include an opportunity related to a SIB scheduling window, a CBS transmission window, an MBMS transmission time slot, and an OTDOA measurement. Therefore, based on the parameters of the paging cycle configuration received from the network, the UE can select a paging or time-critical opportunity to be monitored on each USIM so that the UE does not miss any incoming service paging. At the same time, the UE reduces the total time spent on a manual PLMN search or one of an inter-frequency measurement or an inter-RAT measurement in other USIMs.

[0061] Figure 8 An exemplary sequence diagram illustrating a method of notifying a network of the type / category of a dual / multi USIM device according to some embodiments of the present disclosure is shown.

[0062] There are many types of MUSIM devices with various capabilities. A UE can be classified into one of the following categories based on its hardware capabilities:

[0063] Dual SIM Dual Standby (DSDS)

[0064] Dual SIM Dual Receive (DSDR)

[0065] Any RAT combination DSDR capability

[0066] Same RAT combination DSDR capability

[0067] oSupport frequency band combination based on dual connectivity

[0068] oSupports all frequency band combinations

[0069] Dual SIM Dual Access (DSDA)

[0070] When a MUSIM device and a single USIM device request services from the network, the network should understand the type and / or category of the MUSIM device, which may help the network optimize resource allocation. Figure 8 A method of communicating the type / category of a dual / multi USIM device to a network is disclosed.

[0071] Reference Figure 8 , the UE may include a MUSIM operating in the wireless communication system. In an embodiment, the UE may handle two USIMs, namely SIM1 101 1 and SIM2 101 2 ( Figure 8 In another embodiment, the UE may handle more than two USIMs. Figure 8 SIM1 101 1may be associated with NW1 103. At step 801, NW1 103 (additionally or alternatively, referred to herein as NW) may send a SIM1 101 to the UE. 1 Send a request to inquire about the UE capability type. In step 803, when receiving the request for inquiry about the UE capability type from NW1 103, the UE may send information about the UE capability type to NW1 103. In an embodiment, during the registration of MUSIM with NW1 103, the UE may receive information about the UE capability type from SIM1 101. 1 The UE capability type may include one of the DSDS type, the DSDR type, and the DSDA type. In an embodiment, when the UE capability type changes, the UE may send information about the change of the UE capability type from the SIM1 101 to the NW1 103. 1 Send to NW1103.

[0072] In another embodiment, the above steps performed by the UE may additionally or alternatively be applied to SIM2 101 associated with NW2. 2 , to inform NW2 of the type / category of dual / multi USIM devices.

[0073] Fig. 9 An exemplary sequence diagram illustrating a method of supporting simultaneous PS (Packet Switched) data sessions on two or more USIMs to improve network and UE performance according to some embodiments of the present disclosure is shown.

[0074] In some cases, a MUSIM user can start and continue a data session on one USIM while the other USIM is also connected (for example: no connection released after a call). In order to maintain the connection and data session, the two USIMs share the RF circuit in a time-division multiplexing manner based on a UE-specific implementation, as it is not supported from a 3GPP standardization perspective. Since the networks involved in the data session are unaware that the UE has temporarily moved to another network, the network continues to allocate resources for the data session that may not be used by the UE. Once the UE moves back to the network associated with the data session, the UE can recover through retransmissions. In order to maintain fairness in the allocation, this may result in the associated network penalizing the UE for not using the allocated resources, resulting in KPI degradation in subsequent resource allocation. In order to overcome the above shortcomings, Fig. 9 A method for improving the performance of a UE and a network when the UE is in a CONNECTED state among two or more USIMs for a PS data session is disclosed.

[0075] Reference Fig. 9, the UE may include a MUSIM operating in the wireless communication system. In an example embodiment, the UE may handle two USIMs, i.e., Fig. 9 SIM1 101 shown 1 and SIM2 101 2 In another embodiment, the UE can handle more than two USIMs. Fig. 9 SIM1 101 1 may be associated with NW1 103. Additionally or alternatively, SIM2 101 2 SIM1 101 may be associated with NW2 105. NW1 103 and NW2 105 may belong to different network service providers or the same network service provider. 1 The first paging cycle configuration parameters in the first broadcast information from NW1 103 may be received, and SIM2 101 2 The parameters of the second paging cycle configuration in the second broadcast information from NW2 105 may be received ( Fig. 9 101 ). The parameters of the first paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles having the first paging cycle configuration. The parameters of the second paging cycle configuration may include at least a paging cycle rate, wherein the paging cycle rate is the number of paging message repetitions during a time period covering several paging cycles having the second paging cycle configuration. The UE may register SIM1 101 with NW1 103. 1 and register SIM2 101 with NW2 105 2 ( Fig. 9 In step 901, the UE may continue a data session with NW2 105 that may have been initiated earlier. In step 903, the UE may initiate a data session from SIM1 101. 1 The UE is connected to SIM1 101 associated with NW1 103. 1 and SIM2 101 associated with NW2 105 2 Both detect the ongoing data session and calculate SIM1 101 1 and SIM2 101 2 The duty cycle includes information about the ON period and OFF period of each USIM estimated based on service type, signal condition, buffer occupancy and other parameters not limited to those mentioned herein.

[0076] The USIM ON period defines the availability of the radio circuit using the number of time slots and the start and end radio frame numbers. Similarly, the USIM OFF period defines the unavailability of the radio circuit using the number of time slots and the start and end radio frame numbers. 1 The calculated duty cycle information may be sent to NW1 103. Subsequently, at step 907, when the radio frequency circuit is available for communication, SIM1 101 1 It can communicate data with NW1 103. When SIM1 101 1 When communication occurs between SIM1 101 and NW1 103, steps 903 to 907 may be referred to as 1 ON period. In SIM1 101 1 At the end of the ON period, the RF circuit communicates with the SIM2 101 2 The communication is SIM1 101 1 At step 909, SIM2101 2 The calculated duty cycle information may be sent to NW2 105 .

[0077] Then, at step 911, SIM2 101 2 Data can be communicated with NW2 105 until its ON period ends. 2 When communication occurs between SIM1 101 and NW2 105, steps 909 to 911 may be referred to as an ON period. During this time, 1 No data is scheduled between SIM2 101 and NW1 103. This period may be referred to as an OFF period. 2 The ON period between SIM1 101 and NW2 105 ends. 1 Data communication with NW1 103 may be resumed at step 913. In an embodiment, the network may stop scheduling resources during the OFF period. In another embodiment, the network may temporarily suspend ongoing connections during the OFF period. In yet another embodiment, the network may additionally or alternatively enable C-DRX configuration based on the shared duty cycle information. Fig. 9 The presented method helps to prevent the waste of network resources.

[0078] Fig.10 A detailed block diagram of a UE for operating a MUSIM in a wireless communication system according to some embodiments of the present disclosure is shown.

[0079] UE 1000 may include an I / O interface 1001, a processor 1003, data 1007, and one or more modules 1011, which are described in detail herein. In an embodiment, data 1007 may be stored in memory 1005. Data 1007 may include, for example, other data 1009.

[0080] In an embodiment, the I / O interface 1001 may be configured to communicate with at least one of NW1 103 and / or NW2 105. In an embodiment, the I / O interface 1001 may be configured to communicate with more than two networks. The I / O interface 1001 may use, for example but not limited to, a radio frequency (RF) antenna, a cellular (e.g., code division multiple access (CDMA), high speed packet access (HSPA+), global system for mobile communications (GSM), long term evolution (LTE), world wide interoperability for microwave access (WiMax), etc.) communication protocol / method when communicating with NW1 and NW2.

[0081] The memory 1005 may be communicatively coupled to the processor 1003 of the UE 1000. The memory 1005 may additionally or alternatively store processor instructions that may cause the processor 1003 to execute instructions for the MUSIM operating in the wireless communication system. The memory 1005 may include, but is not limited to, a memory drive, a removable disk drive, etc. The memory drive may also include a drum, a disk drive, a magneto-optical drive, an optical drive, a redundant array of independent disks (RAID), a solid-state storage device, a solid-state drive, etc.

[0082] The processor 1003 may include at least one data processor of a MUSIM for operating in a wireless communication system. The processor 1003 may include a dedicated processing unit, such as an integrated system (bus) controller, a memory management control unit, a floating point unit, a graphics processing unit, a digital signal processing unit, etc.

[0083] Other data 1009 may store data including temporary data and temporary files generated by module 1011 to perform various functions of UE 1000 .

[0084] In an embodiment, one or more modules 1011 may be implemented as dedicated hardware units. In some implementations, one or more modules 1011 may be communicatively coupled to the processor 1003 to perform one or more functions of the UE 1000. The modules 1011 produce the hardware of the present disclosure when configured with the functions defined in the present disclosure.

[0085] In one embodiment, the one or more modules 1011 may include but are not limited to SIM1 101 1 and SIM21012 Here, SIM refers to a subscriber identity module or a universal subscriber identity module. In an embodiment, one or more modules 1011 may include more than two USIMs. One or more modules 1011 may additionally or alternatively include other modules 1013 to perform various other functions of UE 1000.

[0086] UE 1000 can handle two USIMs, namely SIM1 101 1 and SIM2 101 2 SIM1 101 1 may be associated with a first network entity (NW1) 103, while SIM2 101 2 May be associated with a second network entity (NW2) 105. NW1 103 and NW2 105 may belong to different network service providers or the same network service provider.

[0087] FIG. 11A to FIG. 11C A flow chart illustrating a method for MUSIM in a UE operating in a wireless communication system according to some embodiments of the present disclosure is illustrated.

[0088] like FIG. 11A to FIG. 11C As shown, method 1100 includes one or more blocks for MUSIM in a UE operating in a wireless communication system. Method 1100 can be described in the general context of computer-executable instructions. In general, computer-executable instructions can include routines, programs, objects, components, data structures, processes, units, and functions that perform specific functions or implement specific abstract data types.

[0089] The order described in method 1100 is not intended to be construed as limiting, and any number of the described method blocks can be combined in any order to implement the method. Additionally or alternatively, individual blocks can be deleted from the method without departing from the scope of the subject matter described herein. Furthermore, the method can be implemented in any suitable hardware, software, firmware, or combination thereof.

[0090] The following describes reference Fig.11A .

[0091] In block 1101, UE 1000 may receive parameters of a first paging cycle configuration in first broadcast information from a first network entity and parameters of a second paging cycle configuration in second broadcast information from a second network entity.

[0092] The parameters may include at least a paging cycle rate and a number of paging message repetitions during a time period covering several paging cycles. Furthermore, the first network entity and the second network entity may belong to different network service providers or the same network service provider.

[0093] In box 1103, UE 1000 can detect a conflict between a paging opportunity with a first paging cycle configuration and a paging opportunity with a second paging cycle configuration, a conflict between a paging opportunity with the first paging cycle configuration and a time-critical information broadcast from the second network entity, and a conflict between a paging opportunity with the second paging cycle configuration and a time-critical information broadcast from the first network entity.

[0094] Detecting a conflict between a paging occasion having a first paging cycle configuration and a paging occasion having a second paging cycle configuration may include: determining, by UE 1000, that a time slot within a radio frame calculated according to the first paging cycle configuration and a UE identifier assigned by the first network entity matches a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by the second network entity.

[0095] Detecting a conflict between a paging occasion having a first paging cycle configuration and a broadcast of time-critical information from a second network entity may include: determining, by UE 1000, that a time slot within a radio frame calculated based on the first paging cycle configuration and a UE identifier assigned by the first network entity matches at least one time slot within a time window for broadcasting time-critical information associated with the second network entity; and prioritizing, by UE 1000, reception of a paging message in a time slot corresponding to the paging occasion having the first paging cycle configuration.

[0096] Detecting a conflict between a paging opportunity with a second paging cycle configuration and a broadcast of time-critical information from a first network entity may include: determining, by UE 1000, that a time slot within a radio frame calculated based on the second paging cycle configuration and a UE identifier assigned by the second network entity matches at least one time slot within a time window for broadcasting time-critical information associated with the first network entity; and prioritizing, by UE 1000, reception of a paging message in a time slot corresponding to the paging opportunity with the second paging cycle configuration.

[0097] Time-critical information broadcasts may include opportunities related to system information block (SIB) scheduling windows, cell broadcast service (CBS) transmission windows, multimedia broadcast multicast service (MBMS) transmission slots, and observed time difference of arrival (OTDOA) measurements.

[0098] At block 1105 , the UE 1000 may tune the radio frequency circuitry during the first conflict time slot to monitor the paging occasions having the first paging cycle configuration while ignoring the paging occasions having the second paging cycle configuration.

[0099] At block 1107 , the UE 1000 may re-tune the radio frequency circuitry during the second conflict time slot to monitor the paging occasions having the second paging cycle configuration while ignoring the paging occasions having the first paging cycle configuration.

[0100] The following describes reference Fig. 11B .

[0101] In block 1101, UE 1000 may receive parameters of a first paging cycle configuration in first broadcast information from a first network entity and parameters of a second paging cycle configuration in second broadcast information from a second network entity.

[0102] The parameters may include at least a paging cycle rate and a number of paging message repetitions during a time period covering several paging cycles. Furthermore, the first network entity and the second network entity may belong to different network service providers or the same network service provider.

[0103] In box 1103, UE 1000 can detect a conflict between a paging opportunity with a first paging cycle configuration and a paging opportunity with a second paging cycle configuration, a conflict between a paging opportunity with the first paging cycle configuration and a time-critical information broadcast from the second network entity, and a conflict between a paging opportunity with the second paging cycle configuration and a time-critical information broadcast from the first network entity.

[0104] Detecting a conflict between a paging occasion having a first paging cycle configuration and a paging occasion having a second paging cycle configuration may include: determining, by UE 1000, that a time slot within a radio frame calculated according to the first paging cycle configuration and a UE identifier assigned by the first network entity matches a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by the second network entity.

[0105] Detecting a conflict between a paging occasion having a first paging cycle configuration and a broadcast of time-critical information from a second network entity may include: determining, by UE 1000, that a time slot within a radio frame calculated based on the first paging cycle configuration and a UE identifier assigned by the first network entity matches at least one time slot within a time window for broadcasting time-critical information associated with the second network entity; and prioritizing, by UE 1000, reception of a paging message in a time slot corresponding to the paging occasion having the first paging cycle configuration.

[0106] Detecting a conflict between a paging opportunity with a second paging cycle configuration and a broadcast of time-critical information from a first network entity may include: determining, by UE 1000, that a time slot within a radio frame calculated based on the second paging cycle configuration and a UE identifier assigned by the second network entity matches at least one time slot within a time window for broadcasting time-critical information associated with the first network entity; and prioritizing, by UE 1000, reception of a paging message in a time slot corresponding to the paging opportunity with the second paging cycle configuration.

[0107] Time-critical information broadcasts may include opportunities related to system information block (SIB) scheduling windows, cell broadcast service (CBS) transmission windows, multimedia broadcast multicast service (MBMS) transmission slots, and observed time difference of arrival (OTDOA) measurements.

[0108] At block 1109 , when information about the number of paging message repetitions during a time period covering several paging cycles is lost in one of the first paging cycle configuration and the second paging cycle configuration, the UE 1000 may send a request to change the paging cycle configuration to one of the first network entity and the second network entity.

[0109] At block 1111, in response to a request to change a paging cycle configuration sent by the UE to one of the first network entity and the second network entity, the UE 1000 may receive an acknowledgement (ACK) or a negative acknowledgement (NACK) from at least one of the first network entity and the second network entity.

[0110] At block 1113, UE 1000 may receive a third paging cycle configuration from one of the first network entity and the second network entity in response to sending the request.

[0111] The third paging cycle configuration may include at least a new paging cycle rate, a time offset for determining a time slot associated with a paging occasion, and a number of paging message repetitions during a time period covering several paging cycles having the third paging cycle configuration.

[0112] The following describes reference Fig. 11C .

[0113] In block 1101, UE 1000 may receive parameters of a first paging cycle configuration in first broadcast information from a first network entity and parameters of a second paging cycle configuration in second broadcast information from a second network entity.

[0114] The parameters may include at least a paging cycle rate and a number of paging message repetitions during a time period covering several paging cycles. Furthermore, the first network entity and the second network entity may belong to different network service providers or the same network service provider.

[0115] In box 1103, UE 1000 can detect a conflict between a paging opportunity with a first paging cycle configuration and a paging opportunity with a second paging cycle configuration, a conflict between a paging opportunity with the first paging cycle configuration and a time-critical information broadcast from the second network entity, and a conflict between a paging opportunity with the second paging cycle configuration and a time-critical information broadcast from the first network entity.

[0116] Detecting a conflict between a paging occasion having a first paging cycle configuration and a paging occasion having a second paging cycle configuration may include: determining, by UE 1000, that a time slot within a radio frame calculated according to the first paging cycle configuration and a UE identifier assigned by the first network entity matches a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by the second network entity.

[0117] Detecting a conflict between a paging occasion having a first paging cycle configuration and a broadcast of time-critical information from a second network entity may include: determining, by UE 1000, that a time slot within a radio frame calculated based on the first paging cycle configuration and a UE identifier assigned by the first network entity matches at least one time slot within a time window for broadcasting time-critical information associated with the second network entity; and prioritizing, by UE 1000, reception of a paging message in a time slot corresponding to the paging occasion having the first paging cycle configuration.

[0118] Detecting a conflict between a paging occasion having a second paging cycle configuration and a broadcast of time-critical information from the first network entity may include determining, by the UE 1000, that a time slot within a radio frame calculated according to the second paging cycle configuration and a UE identifier assigned by the second network entity matches at least one time slot within a time window in which time-critical information associated with the first network entity is broadcast. Additionally or alternatively, detecting a conflict may also include prioritizing, by the UE 1000, reception of a paging message in a time slot corresponding to the paging occasion having the second paging cycle configuration.

[0119] Time-critical information broadcasts may include opportunities related to system information block (SIB) scheduling windows, cell broadcast service (CBS) transmission windows, multimedia broadcast multicast service (MBMS) transmission slots, and observed time difference of arrival (OTDOA) measurements.

[0120] At block 1115, UE 1000 may send assistance information including a bitmap corresponding to time slots to one of the first network entity and the second network entity, the bitmap indicating availability of UE radio frequency circuitry for paging monitoring during respective paging occasions.

[0121] In block 1117, in response to sending the assistance information including the bitmap location for paging reception, the UE 1000 may receive an acknowledgement (ACK) or a negative acknowledgement (NACK) from at least one of the first network entity and the second network entity.

[0122] In addition, in implementing embodiments consistent with the present disclosure, one or more computer-readable storage media may be utilized. A computer-readable storage medium refers to any type of physical memory on which information or data readable by a processor can be stored. Therefore, a computer-readable storage medium may store instructions executed by one or more processors, the instructions including instructions for causing the processor to perform steps or stages consistent with the embodiments described herein. The term "computer-readable medium" should be understood to include tangible items, and exclude carrier waves and transient signals, i.e., non-transient. Examples include random access memory (RAM), read-only memory (ROM), volatile memory, non-volatile memory, hard disk drives, CD ROMs, DVDs, flash drives, disks, and any other known physical storage media.

[0123] The described operations may be implemented as methods, systems or articles of manufacture using standard programming and / or engineering techniques to produce software, firmware, hardware or any combination thereof. The described operations may be implemented as code maintained in a "non-transitory computer-readable medium", where a processor may read and execute the code from the computer-readable medium. The processor is at least one of a microprocessor and a processor capable of processing and executing inquiries. Non-transitory computer-readable media may include such as magnetic storage media (e.g., hard disk drives, floppy disks, tapes, etc.), optical storage media (CD-ROMs, DVDs, optical disks, etc.), volatile and non-volatile storage devices (e.g., EEPROMs, ROMs, PROMs, RAMs, DRAMs, SRAMs, flash memory, firmware, programmable logic, etc.), etc. In addition, non-transitory computer-readable media include computer-readable media other than transient ones. The code implementing the described operations may be implemented in hardware logic (e.g., integrated circuit chips, programmable gate arrays (PGAs), application-specific integrated circuits (ASICs), etc.).

[0124] Unless expressly stated otherwise, the terms "one embodiment," "embodiments," "multiple embodiments," "described embodiments," "described multiple embodiments," "one or more embodiments," "some embodiments," and "an embodiment" mean "one or more (but not all) embodiments of the present disclosure." Unless expressly stated otherwise, the terms "including," "comprising," "having," and variations thereof mean "including but not limited to." Unless expressly stated otherwise, an enumerated list of items does not mean that any or all of the items are mutually exclusive. Unless expressly stated otherwise, the terms "a," "an," and "the" mean "one or more."

[0125] The description of an embodiment with several components in communication with each other does not imply that all such components are required. Rather, a variety of optional components are described to illustrate the various possible embodiments of the present disclosure.

[0126] When a single device or article is described herein, it is apparent that more than one device / article (whether or not the device or article cooperates) may be used to replace a single device / article. Similarly, when more than one device or article (whether or not the device or article cooperates) is described herein, it is apparent that a single device / article may be used to replace the more than one device or article, or a different number of devices / articles may be used to replace the number of devices or programs shown. The functions and / or features of a device may alternatively be embodied by one or more other devices that are not explicitly described as having such functions / features. Therefore, other embodiments of the present disclosure do not include the device itself.

[0127] Fig.11A , Fig. 11B and Fig. 11C The illustrated operations of show certain events that occur in a particular order. In alternative embodiments, certain operations may be performed, modified, or removed in different orders. Moreover, steps may be added to the above logic and still conform to the described embodiments. In addition, the operations described herein may occur sequentially, or certain operations may be processed in parallel. In addition, the operations may be performed by a single processing unit or by a distributed processing unit.

[0128] Finally, the language used in the specification is selected primarily for readability and instructional purposes, and the language may not be selected to describe or limit the inventive subject matter. Therefore, it is intended that the scope of the present disclosure is not limited by this detailed description, but rather by any claims issued based on the application hereof. Therefore, the disclosure of the embodiments of the present disclosure is intended to be illustrative, rather than limiting, of the scope of the present disclosure set forth in the appended claims.

[0129] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope being indicated by the appended claims.

[0130] Reference numerals:

[0131] Reference numerals describe <![CDATA[101 1 ]]> UE's SIM1 <![CDATA[101 2 ]]> UE's SIM2 103 Network 1 (NW1) 105 Network 2 (NW2) 1000 User Equipment 1001 I / O Interface 1003 processor 1005 Memory 1007 data 1009 Other data 1011 Modules 1013 Other modules

Claims

1. A method for a multi-user universal subscriber identity module user equipment operating in a wireless communication system, the method comprising: Receiving, by the user equipment, a parameter of a first paging cycle configuration in first broadcast information from a first network entity and a parameter of a second paging cycle configuration in second broadcast information from a second network entity; as well as Detecting, by the user device, one of the following: a conflict between a paging occasion having the first paging cycle configuration and a paging occasion having the second paging cycle configuration; a conflict between a paging occasion having the first paging cycle configuration and a time critical information broadcast from the second network entity; as well as a conflict between a paging occasion having the second paging cycle configuration and a time critical information broadcast from the first network entity, and When information about the paging cycle rate is lost in one of the first paging cycle configuration and the second paging cycle configuration, a request for changing the first paging cycle configuration or the second paging cycle configuration is sent to the first network entity or the second network entity through the user equipment.

2. The method according to claim 1, wherein: The parameters include at least a paging cycle rate, which is the number of paging message repetitions during a time period covering several paging cycles.

3. The method according to claim 1, wherein: The detecting a conflict between a paging opportunity having the first paging cycle configuration and a paging opportunity having the second paging cycle configuration includes: Determining, by the user equipment, that a time slot within a radio frame calculated according to the first paging cycle configuration and the user equipment identifier assigned by the first network entity matches a time slot within a radio frame calculated according to the second paging cycle configuration and the user equipment identifier assigned by the second network entity.

4. The method according to claim 3, further comprising: tuning, by the user equipment, a radio frequency circuit in a first conflict time slot to monitor a paging opportunity having the first paging cycle configuration and ignoring a paging opportunity having the second paging cycle configuration; as well as The radio frequency circuit is retuned by the user equipment in a second conflict time slot to monitor the paging occasion with the second paging cycle configuration and ignore the paging occasion with the first paging cycle configuration.

5. The method according to claim 3, further comprising: In response to sending the request, a third paging cycle configuration is received by the user equipment from one of the first network entity and the second network entity.

6. The method according to claim 5, wherein: The third paging cycle configuration includes at least a new paging cycle rate, which is the number of paging message repetitions during a time period covering several paging cycles having the third paging cycle configuration, and a time offset for determining a time slot associated with a paging occasion.

7. The method according to claim 3, further comprising: Auxiliary information including a bitmap corresponding to time slots is sent to one of the first network entity and the second network entity by the user equipment, the bitmap indicating availability of a radio frequency circuit of the user equipment for paging monitoring during each paging occasion.

8. The method according to claim 1, wherein: The detecting a conflict between a paging occasion having the first paging cycle configuration and a time-critical information broadcast from the second network entity comprises: determining, by the user equipment, that a time slot within a radio frame calculated according to the first paging cycle configuration and a user equipment identifier assigned by the first network entity matches at least one time slot within a time window for broadcasting time critical information associated with the second network entity; and Reception of a paging message in a time slot corresponding to a paging occasion having the first paging cycle configuration is prioritized by the user equipment.

9. The method according to claim 1, wherein: The detecting a conflict between a paging opportunity configured in the second paging cycle and a time critical information broadcast from the first network entity comprises: determining, by the user equipment, that a time slot within a radio frame calculated according to the second paging cycle configuration and a user equipment identifier assigned by the second network entity matches at least one time slot within a time window for broadcasting time critical information associated with the first network entity; and Reception of a paging message in a time slot corresponding to a paging occasion having the second paging cycle configuration is prioritized by the user equipment.

10. A user equipment having a multi-universal user identity module operating in a wireless communication system, the user equipment comprising: processor; as well as a memory communicatively coupled to the processor, wherein the memory stores processor-executable instructions that, when executed, cause the processor to: receiving a parameter of a first paging cycle configuration in first broadcast information from a first network entity and a parameter of a second paging cycle configuration in second broadcast information from a second network entity; detecting one of: a conflict between a paging opportunity having the first paging cycle configuration and a paging opportunity having the second paging cycle configuration; a conflict between a paging opportunity having the first paging cycle configuration and a time critical information broadcast from the second network entity; and a conflict between a paging opportunity having the second paging cycle configuration and a time critical information broadcast from the first network entity, and When information about a paging cycle rate is lost in one of the first paging cycle configuration and the second paging cycle configuration, a request to change the first paging cycle configuration or the second paging cycle configuration is sent to the first network entity or the second network entity.

11. The user equipment according to claim 10, wherein: The parameters include at least a paging cycle rate, which is the number of paging message repetitions during a time period covering several paging cycles.

12. The user equipment according to claim 10, wherein: The processor executable instructions, when executed, further cause the processor to: It is determined that a time slot within a radio frame calculated according to the first paging cycle configuration and a user equipment identifier assigned by the first network entity matches a time slot within a radio frame calculated according to the second paging cycle configuration and a user equipment identifier assigned by the second network entity.

13. The user equipment according to claim 12, wherein: The processor executable instructions, when executed, further cause the processor to: tuning a radio frequency circuit in a first conflict time slot to monitor paging occasions having the first paging cycle configuration while ignoring paging occasions having the second paging cycle configuration; as well as The radio frequency circuit is retuned in a second conflict time slot to monitor paging occasions having the second paging cycle configuration while ignoring paging occasions having the first paging cycle configuration.

14. The user equipment according to claim 13, wherein: The user equipment causes the processor to: In response to sending the request, a third paging cycle configuration is received from one of the first network entity and the second network entity.

15. The user equipment according to claim 14, wherein: The third paging cycle configuration includes at least a new paging cycle rate, which is the number of paging message repetitions during a time period covering several paging cycles having the third paging cycle configuration, and a time offset for determining a time slot associated with a paging occasion.

16. The user equipment according to claim 12, wherein: The processor executable instructions, when executed, further cause the processor to: Assistance information including a bitmap corresponding to time slots is sent to one of the first network entity and the second network entity, the bitmap indicating availability of a user equipment radio frequency circuit for paging monitoring during respective paging occasions.

17. The user equipment according to claim 10, wherein: The processor executable instructions, when executed, further cause the processor to: determining that a time slot within a radio frame calculated according to the first paging cycle configuration and a user equipment identifier assigned by the first network entity matches at least one time slot within a time window for broadcasting time critical information associated with the second network entity; as well as Reception of a paging message in a time slot corresponding to a paging occasion having the first paging cycle configuration is prioritized.

18. The user equipment according to claim 10, wherein: The processor executable instructions, when executed, further cause the processor to: determining that a time slot within a radio frame calculated according to the second paging cycle configuration and a user equipment identifier assigned by the second network entity matches at least one time slot within a time window for broadcasting time critical information associated with the first network entity; as well as Reception of a paging message in a time slot corresponding to a paging occasion having the second paging cycle configuration is prioritized.

19. A method of wireless communication at a user equipment, the method comprising: Receiving a first parameter of a first paging cycle configuration in first broadcast information from a first network entity; Receiving a second parameter of a second paging cycle configuration in second broadcast information from a second network entity, wherein the second parameter is received based in part on multiple universal subscriber identity modules of the user equipment; detecting a first paging conflict during a first conflict time slot and detecting a second paging conflict during a second conflict time slot based on the first parameter and the second parameter; tuning a radio frequency circuit during the first contention time slot to monitor for a paging occasion having the first paging cycle configuration; and retuning the radio frequency circuit in the second conflict time slot to monitor a paging occasion having the second paging cycle configuration, The first paging conflict includes a conflict between a paging opportunity with the first paging cycle configuration and a paging opportunity with the second paging cycle configuration, or a conflict between a paging opportunity with the first paging cycle configuration and a time-critical information broadcast from the second network entity. The second paging conflict includes a conflict between the second paging cycle configuration and a time-critical information broadcast from the first network entity.

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