Paging indication method and apparatus

Abstract

The application discloses a paging indication method and device, the method comprises the following steps: a UE obtains first indication information, the first indication information is used for indicating whether a core network device supports a paging cause value; and receiving a first paging message, the first paging message comprises first information corresponding to the UE, and the first information does not comprise a first field used for indicating the paging cause value; in the case that the first indication information is used for indicating that the core network device supports the paging cause value, the first information is used for indicating the paging cause value. The method provided by the application can make the UE know whether the paging cause value is indicated in the information corresponding to the UE in the paging message.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a paging indication method and apparatus. Background Technology

[0002] The fifth-generation (5G) new radio (NR) technology adopts the discontinuous reception (DRX) mechanism from Long Term Evolution (LTE). The DRX mechanism includes DRX cycles, during which the terminal device periodically "wakes up" for a period of time according to the DRX cycle. The possible cycles are 32, 64, 128, or 256 radio frames. During the other times of the DRX cycle, the device can remain in a "sleep" state to reduce power consumption.

[0003] Meanwhile, when the terminal device is in the idle or inactive state of Radio Resource Control (RRC), if the network needs to send downlink data to the terminal device (e.g., a phone call needs to be made to the device, or data needs to be transmitted to the device), it will first send a paging message to the terminal device. After receiving the paging message, the terminal device will initiate the RRC connection establishment process so that it can receive downlink data.

[0004] Therefore, how to ensure that terminal devices clearly obtain the content of paging messages is an urgent problem to be solved. Summary of the Invention

[0005] This application provides a paging indication method and apparatus, which enables a terminal device to clearly know whether the information corresponding to the paging message indicates a paging reason value.

[0006] In a first aspect, embodiments of this application provide a paging indication method, the method being applied to a communication device, the communication device including a terminal device or a chip in the terminal device, the method comprising:

[0007] Obtain first indication information, which is used to indicate whether the core network device supports the paging reason value; receive a first paging message, which includes first information corresponding to the terminal device, wherein the first information does not include a first field for indicating the paging reason value, and when the first indication information is used to indicate that the core network device supports the paging reason value, the first information is used to indicate the paging reason value.

[0008] The first indication information is used to indicate whether the core network device supports paging reason values. It can also be understood as: the first indication information is used to indicate whether the core network device sets (or can be replaced by configuring) a paging reason value; or, the first indication information is used to indicate whether the paging corresponding to the core network device indicates a paging reason value; or, the first indication information is used to indicate whether the paging message (including the first paging message) corresponding to the first identifier of the terminal device indicates a paging reason value; or, the first indication information is used to indicate whether the paging corresponding to the core network device includes a paging reason value; or, the first indication information is used to indicate whether the paging message (including the first paging message) corresponding to the first identifier of the terminal device includes a paging reason value; or, the first indication information is used to indicate whether the core network device supports adding a paging reason value to the paging message (including the first paging message); or, the first indication information is used to indicate whether the core network device supports indicating or configuring a paging reason value in the paging message (including the first paging message), etc. It can be understood that whether the corresponding paging includes the paging reason value can be interpreted as whether the corresponding paging explicitly includes the paging reason value, and whether the corresponding paging implicitly indicates (or implicitly includes) the paging reason value.

[0009] The first information can be understood as the paging message corresponding to the terminal device in the first paging message. For example, the first information includes the identifier of the terminal device. Therefore, the information in the first paging message corresponding to the identifier of the terminal device can be understood as the first information.

[0010] The first field can also be called the paging reason value field, or the service type field, etc. This application embodiment does not limit the specific name of the first field. It can be called the paging reason value field because it can be used to indicate the paging reason value. It can be called the service type field because the paging reason value indicated by the first field can be a first service type or a second service type, etc.

[0011] In this embodiment of the application, when the first indication information is used to indicate that the core network device supports a paging reason value, the first information indicating the paging reason value can also be understood as: when the first indication information is used to indicate that the core network device supports a paging reason value, the first information indicates the paging reason value, or the paging corresponding to the core network device indicates the paging reason value, or the paging corresponding to the core network device supports the paging reason value, or the paging corresponding to the core network device has a paging reason value set, etc. That is to say, although the first information does not explicitly include a first field for indicating the paging reason value, it can be obtained from the first indication information that the first information implicitly indicates the paging reason value. For example, the first information indicating the paging reason value can also be understood as: the first information indicates the paging reason value. That is, the terminal device can confirm that the core network device has indicated the paging reason value based on the first indication information.

[0012] It is understood that the embodiments of this application can also be replaced by: obtaining first indication information, the first indication information being used to indicate whether the core network device supports the paging reason value; receiving a first paging message, the first paging message including first information corresponding to the terminal device; in the case that the first information does not include a first field for indicating the paging reason value, and in the case that the first indication information is used to indicate that the core network device supports the paging reason value, the first information is used to indicate the paging reason value.

[0013] Generally, when the first information does not include a first field indicating the paging reason value, the terminal device may interpret the paging reason value indicated by the first information as the first service type (such as non-voice service), or as the first information not indicating a paging reason value. This leads to the terminal device's inability to correctly understand the first information. However, in the technical solution provided in this application embodiment, since the first indication information can be used to indicate whether the core network device supports the paging reason value, even if the first information does not include the first field, the terminal device can still obtain the paging reason value indicated in the first information when the first indication information is used to indicate that the core network device supports the paging reason value. This improves the situation where the terminal device cannot correctly understand the first information, enabling the terminal device to clearly know whether the paging message indicates a paging reason value, thus improving the user experience.

[0014] In one possible implementation, if the first indication information is used to indicate that the core network device does not support the paging reason value, the first information does not indicate the paging reason value.

[0015] The first message does not indicate a paging reason value; that is, because the core network equipment does not support paging reason values, the first message does not indicate a paging reason value.

[0016] It is understood that the above implementation can also be replaced by: when the first information does not include a first field for indicating the paging reason value, and when the first indication information is used to indicate that the core network device does not support the paging reason value, the first information does not indicate the paging reason value.

[0017] In one possible implementation, where the first information includes the first field, the first information is used to indicate a second service type (such as voice service).

[0018] The first information is used to indicate the second service type, which can also be understood as: the paging reason value indicated by the first information is the second service type.

[0019] In one possible implementation, the first indication information is used to indicate whether the core network equipment corresponding to a public land mobile network (PLMN) supports the paging reason value; or, the first indication information is used to indicate whether the core network equipment corresponding to multiple PLMNs supports the paging reason value.

[0020] In this embodiment of the application, when the first indication information is used to indicate whether the core network equipment corresponding to multiple PLMNs supports paging reason values, the first indication information can indicate the identifier of the PLMN. For example, one PLMN corresponds to one indication information (i.e., indication information on whether paging reason values ​​are supported). As another example, since there are only two possibilities regarding whether paging reason values ​​are supported, some PLMNs among the multiple PLMNs can correspond to one indication information, and another group of PLMNs among the multiple PLMNs can correspond to another indication information.

[0021] In one possible implementation, different core network devices belong to different public land mobile networks (PLMNs).

[0022] In one possible implementation, the method further includes: determining whether the core network device corresponding to the first PLMN supports the paging reason value based on the first indication information, wherein the first PLMN is a PLMN serving the terminal device.

[0023] Alternatively, the above implementation can also be understood as follows: the first indication information includes indication information on whether the core network device corresponding to the first PLMN supports the paging reason value, and the first PLMN is a PLMN serving the terminal device.

[0024] In one possible implementation, the first information corresponds to a paging initiated by the core network device.

[0025] In one possible implementation, the first paging message includes a second field for indicating the paging reason value; where the first information includes the first field, the first field is contained within the second field.

[0026] For example, the first field can be understood as a subfield of the second field.

[0027] In one possible implementation, the method further includes: obtaining second indication information, the second indication information being used to indicate whether the access network device supports the paging reason value.

[0028] It is understood that the description of the second indication information can be found in the description of the first indication information above. For example, the second indication information is used to indicate whether the access network device has set (setting can also be replaced by configuring) a paging reason value, etc., which will not be elaborated here.

[0029] In one possible implementation, when the second indication information is used to indicate that the access network device supports the paging reason value, the first paging message includes a second field for indicating the paging reason value; when the first information includes the first field, the first field is included in the second field.

[0030] In one possible implementation, the first paging message further includes second information, which corresponds to a paging initiated by the access network device.

[0031] In one possible implementation, the first indication information is contained in any of the following messages:

[0032] Non-access (NAS) messages, system information blocks (SIBs), the first paging message, or downlink control information (DCI) used to schedule the first paging message.

[0033] In one possible implementation, the method further includes: the terminal device sending a registration request message to the core network device; the terminal device receiving a registration acceptance message from the core network device, the registration acceptance message including the first indication information.

[0034] In one possible implementation, the first indication information is carried in a third field. If the third field is not present, the first indication information is used to indicate that the core network device does not support the paging reason value. If the third field is present, the first indication information is used to indicate that the core network device supports the paging reason value.

[0035] In one possible implementation, the value of the third field is a first value, and the first indication information is used to indicate that the core network device supports the paging reason value; the value of the third field is a second value, and the first indication information is used to indicate that the core network device does not support the paging reason value.

[0036] In one possible implementation, the second indication information is carried in a fourth field. If the fourth field is absent, the second indication information is used to indicate that the access network device does not support the paging reason value; if the fourth field is present, the second indication information is used to indicate that the access network device supports the paging reason value.

[0037] In one possible implementation, the fourth field takes the value of a third value, and the second indication information is used to indicate that the access network device supports the paging reason value; the fourth field takes the value of a fourth value, and the second indication information is used to indicate that the access network device does not support the paging reason value.

[0038] It is understood that the first value shown above may be equal to the third value, or the first value may not be equal to the third value. Similarly, the second value may be equal to the fourth value, or the second value may not be equal to the fourth value; this application does not limit this.

[0039] Secondly, embodiments of this application provide a paging indication method, the method being applied to a communication device, the communication device including an access network device or a chip in the access network device, the method comprising:

[0040] Obtain first indication information, which indicates whether the core network device supports the paging reason value; send the first indication information to the terminal device; send a first paging message to the terminal device, which includes first information corresponding to the terminal device, and the first information does not include a first field for indicating the paging reason value; when the first indication information indicates that the core network device supports the paging reason value, the first information is used to indicate the paging reason value.

[0041] Understandably, for a detailed explanation of the second aspect, please refer to the first aspect mentioned above, which will not be elaborated here.

[0042] In one possible implementation, obtaining the first indication information includes:

[0043] The first indication information is obtained based on third indication information from the core network device, wherein the third indication information is used to indicate whether the core network device supports the paging reason value; or, the first indication information is obtained from the operation, administration and maintenance (OAM) device; or, the first indication information is obtained by receiving a second paging message from the core network device and based on the first field included in the second paging message.

[0044] It is understandable that the explanation of the third instruction information can be referred to the description of the first instruction information above, and will not be elaborated here.

[0045] In one possible implementation, if the first indication information is used to indicate that the core network device does not support the paging reason value, the first information does not indicate the paging reason value.

[0046] In one possible implementation, where the first information includes the first field, the first information is used to indicate a second service type (such as voice service).

[0047] In one possible implementation, the first indication information is used to indicate whether one of the core network devices supports the paging reason value; or, the first indication information is used to indicate whether multiple core network devices support the paging reason value.

[0048] In one possible implementation, the first information corresponds to a paging initiated by the core network device.

[0049] In one possible implementation, the first paging message includes a second field for indicating the paging reason value; if the first information includes the first field, the first field is included in the second field.

[0050] In one possible implementation, the method further includes: sending a second indication message to the terminal device, the second indication message being used to indicate whether the access network device supports the paging reason value.

[0051] In one possible implementation, when the second indication information is used to indicate that the access network device supports the paging reason value, the first paging message includes a second field for indicating the paging reason value; when the first information includes the first field, the first field is included in the second field.

[0052] In one possible implementation, the first paging message further includes second information, which corresponds to a paging initiated by the access network device.

[0053] In one possible implementation, the first indication information is contained in any of the following messages:

[0054] Non-access stratum (NAS) messages, system information blocks (SIBs), the first paging message, or downlink control information (DCI) used to schedule the first paging message.

[0055] In one possible implementation, the first indication information is carried in a third field. If the third field is not present, the first indication information is used to indicate that the core network device does not support the paging reason value. If the third field is present, the first indication information is used to indicate that the core network device supports the paging reason value.

[0056] In one possible implementation, the value of the third field is a first value, and the first indication information is used to indicate that the core network device supports the paging reason value; the value of the third field is a second value, and the first indication information is used to indicate that the core network device does not support the paging reason value.

[0057] In one possible implementation, the second indication information is carried in a fourth field. If the fourth field is absent, the second indication information is used to indicate that the access network device does not support the paging reason value; if the fourth field is present, the second indication information is used to indicate that the access network device supports the paging reason value.

[0058] In one possible implementation, the fourth field takes the value of a third value, and the second indication information is used to indicate that the access network device supports the paging reason value; the fourth field takes the value of a fourth value, and the second indication information is used to indicate that the access network device does not support the paging reason value.

[0059] Thirdly, embodiments of this application provide a communication device for executing the method in the first aspect or any possible implementation thereof. The communication device includes corresponding units for executing the method in the first aspect or any possible implementation thereof.

[0060] The processing unit is configured to obtain first indication information, which is used to indicate whether the core network device supports paging reason value;

[0061] A transceiver unit is configured to receive a first paging message, the first paging message including first information corresponding to the communication device, the first information not including a first field for indicating the paging reason value; when the first indication information is used to indicate that the core network device supports the paging reason value, the first information is used to indicate the paging reason value.

[0062] In one possible implementation, if the first indication information is used to indicate that the core network device does not support the paging reason value, the first information does not indicate the paging reason value.

[0063] In one possible implementation, the first indication information is used to indicate whether the core network equipment corresponding to a Public Land Mobile Network (PLMN) supports the paging reason value; or, the first indication information is used to indicate whether the core network equipment corresponding to multiple PLMNs supports the paging reason value.

[0064] In one possible implementation, the processing unit is further configured to determine, based on the first indication information, whether the core network equipment corresponding to the first public land mobile network (PLMN) supports the paging reason value, wherein the first PLMN is a PLMN serving the communication device.

[0065] In one possible implementation, the first paging message includes a second field for indicating the paging reason value; if the first information includes the first field, the first field is included in the second field.

[0066] In one possible implementation, the processing unit is further configured to obtain second indication information, which indicates whether the access network device supports the paging reason value.

[0067] In one possible implementation, when the second indication information is used to indicate that the access network device supports the paging reason value, the first paging message includes a second field for indicating the paging reason value; when the first information includes the first field, the first field is included in the second field.

[0068] In one possible implementation, the first paging message further includes second information, which corresponds to a paging initiated by the access network device.

[0069] In one possible implementation, the first indication information is contained in any of the following messages:

[0070] Non-access stratum (NAS) messages, system information blocks (SIBs), the first paging message, or downlink control information (DCI) used to schedule the first paging message.

[0071] In one possible implementation, the first indication information is carried in a third field. If the third field is not present, the first indication information is used to indicate that the core network device does not support the paging reason value. If the third field is present, the first indication information is used to indicate that the core network device supports the paging reason value.

[0072] For example, the communication device may be a terminal device or a chip in a terminal device.

[0073] Fourthly, embodiments of this application provide a communication apparatus for performing the method in the second aspect or any possible implementation thereof. The communication apparatus includes a corresponding method for performing the method in the second aspect or any possible implementation thereof.

[0074] The transceiver unit is used to send the first indication information to the terminal device, wherein the first indication information is used to indicate whether the core network device supports the paging reason value.

[0075] The transceiver unit is further configured to send a first paging message to the terminal device, the first paging message including first information corresponding to the terminal device, the first information not including a first field for indicating the paging reason value; when the first indication information is used to indicate that the core network device supports the paging reason value, the first information is used to indicate the paging reason value.

[0076] In one possible implementation, the processing unit is configured to obtain the first indication information based on third indication information from the core network device, the third indication information being used to indicate whether the core network device supports the paging reason value; or...

[0077] The processing unit is configured to obtain the first indication information from the Operation, Management and Maintenance (OAM) equipment; or...

[0078] The processing unit is configured to receive a second paging message from the core network device through the transceiver unit, and to obtain the first indication information based on the first field included in the second paging message.

[0079] In one possible implementation, if the first indication information is used to indicate that the core network device does not support the paging reason value, the first information does not indicate the paging reason value.

[0080] In one possible implementation, the first indication information is used to indicate whether the core network equipment corresponding to a Public Land Mobile Network (PLMN) supports the paging reason value; or, the first indication information is used to indicate whether the core network equipment corresponding to multiple PLMNs supports the paging reason value.

[0081] In one possible implementation, the first paging message includes a second field for indicating the paging reason value; if the first information includes the first field, the first field is included in the second field.

[0082] In one possible implementation, the transceiver unit is further configured to send a second indication information to the terminal device, the second indication information being used to indicate whether the communication device supports the paging reason value.

[0083] In one possible implementation, when the second indication information is used to indicate that the communication device supports the paging reason value, the first paging message includes a second field for indicating the paging reason value; when the first information includes the first field, the first field is included in the second field.

[0084] In one possible implementation, the first paging message further includes second information, which corresponds to a paging initiated by the communication device.

[0085] In one possible implementation, the first indication information is contained in any of the following messages:

[0086] Non-access stratum (NAS) messages, system information blocks (SIBs), the first paging message, or downlink control information (DCI) used to schedule the first paging message.

[0087] In one possible implementation, the first indication information is carried in a third field. When the third field is not present, the first indication information is used to indicate that the core network device does not support the paging reason value. When the third field is present, the first indication information is used to indicate that the core network device supports the paging reason value.

[0088] For example, the communication device may be an access network device or a chip in the access network device.

[0089] In the third or fourth aspect, the aforementioned communication apparatus may include a transceiver unit and a processing unit. Further details regarding the transceiver unit and processing unit can be found in the apparatus embodiments shown below.

[0090] Fifthly, embodiments of this application provide a communication device including a processor for executing the method described in the first aspect or any possible implementation thereof. Alternatively, the processor may execute a program stored in a memory, wherein when the program is executed, the method described in the first aspect or any possible implementation thereof is executed.

[0091] In the execution of the above method, the process of sending messages (such as sending a registration request message) can be understood as the process of the processor outputting the message. When the processor outputs the message, it sends it to the transceiver for transmission. After being output by the processor, the message may require further processing before reaching the transceiver. Similarly, when the processor receives an input message (such as a first paging message or a first indication message), the transceiver receives the message and inputs it to the processor. Furthermore, after the transceiver receives the message, it may require further processing before being input to the processor.

[0092] Unless otherwise specified, or unless it contradicts its actual function or internal logic in the relevant description, the transmission, receiving, and receiving operations involved in the processor can be more generally understood as processor output and receiving, input, and other operations, rather than transmission, receiving, and receiving operations directly performed by radio frequency circuits and antennas.

[0093] In implementation, the processor described above can be a dedicated processor for executing these methods, or it can be a processor that executes computer instructions stored in memory to execute these methods, such as a general-purpose processor. The memory described above can be a non-transitory memory, such as read-only memory (ROM), which can be integrated with the processor on the same chip or disposed on different chips. This application does not limit the type of memory or the arrangement of the memory and processor. It is understood that the description of the processor and memory also applies to the sixth aspect shown below, and for ease of explanation, the sixth aspect will not be described in detail hereafter.

[0094] In one possible implementation, the memory is located outside the aforementioned communication device.

[0095] In one possible implementation, the memory is located within the aforementioned communication device.

[0096] In this embodiment of the application, the processor and memory can also be integrated into a single device, that is, the processor and memory can be integrated together.

[0097] In one possible implementation, the communication device further includes a transceiver for receiving or transmitting signals. For example, the transceiver may also be used to receive a first paging message, etc.

[0098] In this embodiment of the application, the communication device may be a terminal device or a chip in the terminal device, etc.

[0099] Sixthly, embodiments of this application provide a communication device including a processor for executing the method shown in the second aspect or any possible implementation thereof. Alternatively, the processor is configured to execute a program stored in a memory, wherein when the program is executed, the method shown in the second aspect or any possible implementation thereof is executed.

[0100] In one possible implementation, the memory is located outside the aforementioned communication device.

[0101] In one possible implementation, the memory is located within the aforementioned communication device.

[0102] In the embodiments of this application, the processor and memory can also be integrated into a single device, that is, the processor and memory can be integrated together.

[0103] In one possible implementation, the communication device further includes a transceiver for receiving or transmitting signals. For example, the transceiver may be used to transmit a first paging message.

[0104] In this embodiment of the application, the communication device may be an access network device or a chip in the access network device, etc.

[0105] In a seventh aspect, embodiments of this application provide a communication device, which includes a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the logic circuit is used to obtain first indication information; and the interface is used to input a first paging message.

[0106] For example, logic circuits can also obtain first indication information through an interface.

[0107] For example, the logic circuit is further configured to determine whether the core network device corresponding to the first PLMN supports the paging reason value based on the first indication information.

[0108] For example, the logic circuit is also used to obtain second indication information.

[0109] It is understood that the description of the first instruction information, the first paging message, or the first information, etc., can be referred to the description of the first or second aspect above; or, reference can also be made to the various embodiments shown below, which will not be described in detail here.

[0110] Eighthly, embodiments of this application provide a communication device, which includes a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the logic circuit is used to obtain first indication information; and the interface is used to output the first indication information and output a first paging message.

[0111] For example, the logic circuit can also obtain the first indication information through an interface.

[0112] It is understood that the description of the first instruction information, the first paging message, or the first information, etc., can be referred to the description of the first or second aspect above; or, reference can also be made to the various embodiments shown below, which will not be described in detail here.

[0113] Ninthly, embodiments of this application provide a computer-readable storage medium for storing a computer program that, when run on a computer, causes the methods shown in the first aspect or any possible implementation thereof to be executed.

[0114] In a tenth aspect, embodiments of this application provide a computer-readable storage medium for storing a computer program that, when run on a computer, causes the methods shown in the second aspect or any possible implementation thereof to be executed.

[0115] Eleventhly, embodiments of this application provide a computer program product, which includes a computer program or computer code, and when run on a computer, causes the method shown in the first aspect or any possible implementation thereof to be executed.

[0116] In a twelfth aspect, embodiments of this application provide a computer program product comprising a computer program or computer code that, when run on a computer, causes the methods shown in the second aspect or any possible implementation thereof to be executed.

[0117] In a thirteenth aspect, embodiments of this application provide a computer program that, when run on a computer, executes the methods shown in the first aspect or any possible implementation thereof.

[0118] In a fourteenth aspect, embodiments of this application provide a computer program that, when run on a computer, executes the methods shown in the second aspect or any possible implementation thereof.

[0119] In a fifteenth aspect, embodiments of this application provide a wireless communication system, which includes a terminal device and an access network device. The terminal device is configured to perform the method shown in the first aspect or any possible implementation thereof, and the access network device is configured to perform the method shown in the second aspect or any possible implementation thereof. Attached Figure Description

[0120] Figure 1 This is a schematic diagram of a communication system provided in an embodiment of this application;

[0121] Figure 2 This is a flowchart illustrating a paging indication method provided in an embodiment of this application;

[0122] Figures 3 to 5 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0123] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described below in conjunction with the accompanying drawings.

[0124] The terms "first" and "second," etc., used in the specification, claims, and drawings of this application are used only to distinguish different objects and not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0125] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0126] In this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three or more, and "and / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items. For example, at least one (item) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0127] The method provided in this application can be applied to various communication systems, such as Internet of Things (IoT) systems, narrowband Internet of Things (NB-IoT) systems, long term evolution (LTE) systems, 5th generation (5G) communication systems, and new communication systems that will emerge in the future development of communication (such as 6G).

[0128] The technical solutions provided in this application can also be applied to machine-type communication (MTC), long-term evolution-machine (LTE-M) technology, device-to-device (D2D) networks, machine-to-machine (M2M) networks, Internet of Things (IoT) networks, or other networks. Among them, IoT networks may include, for example, vehicle-to-everything (V2X) networks. The communication methods in V2X systems are collectively referred to as vehicle-to-everything (V2X), where X can represent anything. For example, V2X may include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, or vehicle-to-network (V2N) communication, etc. Examples are shown below. Figure 1 In this context, terminal devices can communicate with each other through D2D, M2M, or V2X technologies.

[0129] Figure 1 This is a schematic diagram of a communication system provided in an embodiment of this application. The method embodiments shown below in this application can be applied to... Figure 1 The communication system shown will not be described in detail below.

[0130] Optionally, the communication system may include at least one access network device and at least one terminal device.

[0131] Optionally, the communication system may include at least one core network device and at least one terminal device.

[0132] Optionally, the communication system may include at least one access network device, at least one core network device, and at least one terminal device.

[0133] The descriptions of access network equipment, core network equipment, and terminal equipment are as follows:

[0134] For example, the access network device can be a next-generation node B (gNB), a next-generation evolved node B (ng-eNB) (which can be simply referred to as eNB), or an access network device in future 6G communications. The access network device can be any device with wireless transceiver capabilities, including but not limited to the base stations shown above. The base station can also be a base station in future communication systems such as sixth-generation communication systems. Optionally, the access network device can be an access node, wireless relay node, or wireless backhaul node in a wireless local area network (WiFi) system. Optionally, the access network device can be a wireless controller in a cloud radioaccess network (CRAN) scenario. Optionally, the access network device can be a wearable device or an in-vehicle device. Optionally, the access network device can also be a small cell, a transmission reception point (TRP) (or a transmission point), etc. It is understood that the access network device can also be a base station in a future evolved public land mobile network (PLMN), etc.

[0135] For example, this terminal device can also be called user equipment (UE), a terminal, etc. A terminal device is a device with wireless transceiver capabilities that can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; it can also be deployed on water, such as on ships; and it can be deployed in the air, such as on airplanes, balloons, or satellites. Terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and so on. It is understood that this terminal device can also be a terminal device in future 6G networks or a terminal device in future evolved PLMNs, etc.

[0136] It is understood that the terminal device shown in this application may include not only vehicles (such as complete vehicles) in the Internet of Vehicles, but also in-vehicle equipment or in-vehicle terminals in the Internet of Vehicles. This application does not limit the specific form of the terminal device when it is applied to the Internet of Vehicles.

[0137] For ease of description, the method involved in this application will be described below using the UE as an example of the terminal device.

[0138] For example, core network equipment may include access and mobility management functions (AMF), mobility management entities (MME), or user plane functions (UPF). For instance, to provide better and more comprehensive services to more industries, 5G networks have undergone network architecture adjustments compared to 4G networks. For example, 5G networks split the mobility management entity (MME) in 4G networks into multiple network elements (or network functions) including access and mobility management functions (AMF) and session management functions (SMF). The AMF shown in this application is a control plane network function provided by the PLMN, responsible for access control and mobility management of UE access to the PLMN, including functions such as mobility state management, allocation of temporary user identities, authentication, and authorization. Therefore, as mobile networks develop, even if the AMF or UPF may evolve into other forms or names, as long as the methods shown in this application can be implemented, they all fall within the protection scope of this application.

[0139] Figure 1 The communication system shown includes one base station and six UEs, such as... Figure 1 The system includes UE1 to UE6, and one core network device. For detailed information on the UEs, base stations, and core network device, please refer to the above text; further details will not be repeated here.

[0140] In this communication system, the base station can send downlink signals such as first indication information or paging messages to UE1 to UE6, and UE1 to UE6 can send uplink signals to the base station. It should be understood that... Figure 1 An exemplary diagram illustrates a base station and six UEs, as well as the communication links between the various communication devices. Optionally, the communication system may include multiple base stations, and the coverage area of ​​each base station may include other numbers of UEs, such as more or fewer UEs, etc., which is not limited in this application.

[0141] Optional, Figure 1 The communication system shown may also include multiple core network devices, such as those belonging to different PLMNs. This application does not limit the number of core network devices.

[0142] for Figure 1The number of devices in the communication system is not limited in this application.

[0143] The following is a description of the terminology used in this application:

[0144] 1. Multi-card terminal

[0145] A multi-SIM terminal refers to a terminal equipped with two or more SIM cards (SIM or USIM cards). These SIM cards may include a subscriber identification module (SIM) and / or a universal subscriber identity module (USIM). This multi-SIM terminal can register to different networks, such as different access network devices and / or different core network devices, using two or more SIM cards. Therefore, while one SIM card corresponds to one UE, the multiple SIM cards in a multi-SIM terminal can be understood as multiple UEs.

[0146] It is understood that the methods shown in this application can be applied not only to terminals with one phone card, but also to terminals with two or more phone cards.

[0147] 2. Paging Message

[0148] Generally, a UE in an idle or inactive state (also known as a non-active state) "wakes up" to receive paging messages during its paging occasion (PO).

[0149] For example, within its own PO, the UE first receives downlink control information (DCI) indicating a paging message. This DCI can be used to indicate the time-frequency resources of the paging message. It is understood that this DCI indicating the paging message can also be called a DCI scrambled with a paging radionetwork temporary identifier (P-RNTI). Alternatively, this DCI can be simply referred to as paging control information, etc. This application does not limit the specific name of the DCI. Therefore, after receiving the DCI, the UE receives the paging message. If the paging message carries the UE's identity (ID), it indicates that the UE has been paged, and the UE initiates an RRC connection establishment procedure to access the base station. If the paging message does not carry the UE's ID, it indicates that the UE has not been paged, and the UE can continue to "sleep" and wait for the next PO to "wake up." It is understandable that DCI can be transmitted on the physical downlink control channel (PDCCH), while paging messages can be transmitted on the physical downlink shared channel (PDSCH).

[0150] For example, the paging mechanism can be further divided into core network (CN) paging and radio access network (RAN) paging. For instance, an idle UE corresponds to CN paging, while an inactive UE corresponds to RAN paging. As another example, the ID used for paging an idle UE may include the International Mobile Subscriber Identity (IMSI) or the 5G S-temporary Mobile Subscription Identifier (5G-S-TMSI). Similarly, the ID used for paging an inactive UE may include the inactive-radio network temporary identifier (I-RNTI) or the full I-RNTI. It is understood that as the communication system evolves, the paging message may include more UE identifiers, or the identifier used by an idle UE may change, or the identifier used by an inactive UE may change, etc., and this application does not limit this. In this application, the UE ID used for paging corresponding to the core network equipment is collectively referred to as the UE's first identifier, such as the first identifier including IMSI or 5G-S-TMSI, etc. The UE ID used for paging corresponding to the access network equipment is collectively referred to as the UE's second identifier, such as the second identifier including I-RNTI or fullI-RNTI. This description also applies below.

[0151] A single paging message can be used to page multiple UEs, which may include UEs in idle state and / or inactive state. For example, the paging message includes a paging record list, which contains one or more (e.g., up to 32) paging records. Each paging record includes a UE ID, which can be 5G-S-TMSI or fullI-RNTI, etc. One paging record can correspond to one UE. That is, if a paging message pages N UEs, the paging record list can include N paging records, where N is an integer less than or equal to 32. It is understood that the value of N may change with the evolution of the communication system; therefore, this application does not limit the specific value of N.

[0152] For example, part of the paging message content can be as follows:

[0153] Paging message:

[0154] Paging record list: (Contains 4 paging records)

[0155] Paging record: (1st)

[0156] UE ID: 5G-S-TMSI

[0157] Paging record: (2nd one)

[0158] UE ID: fullI-RNTI

[0159] Paging record: (3rd one)

[0160] UE ID: 5G-S-TMSI

[0161] Paging record: (4th one)

[0162] UE ID: fullI-RNTI

[0163] It is understood that the paging message content shown above is only an example. For the specific content of the paging message, please refer to the relevant standards or protocols, which will not be detailed here.

[0164] 3. Paging cause value

[0165] By carrying the UE ID(s) in the paging message, the UE can know whether it has been paged, but cannot know the reason for the page. For example, the UE may be currently receiving voice service (such as a phone call) or data service (such as web page data, app data, etc.). For multi-SIM terminals, communication may only be possible on one SIM card at a time. For instance, if a multi-SIM terminal is currently communicating on SIM 1, and a service arrives on SIM 2 (such as a network device (including access network equipment and / or core network equipment) paging SIM 2), the dual-SIM terminal can choose to disconnect communication on SIM 1 and establish communication on SIM 2. It is understood that this application does not limit the specific method for a dual-SIM terminal to disconnect communication on SIM 1. For specific methods of disconnecting communication on SIM 1 in a dual-SIM terminal, relevant standards or protocols can be referenced.

[0166] Generally, a UE only knows that the network is paging it but not the specific service type being paging. To avoid missing a high-priority service type, the UE will respond to the paging first. For example, after a multi-SIM terminal establishes communication with SIM 2, it may find that the service type is not a high-priority one, but a lower-priority one, causing communication with SIM 1 to be disconnected and affecting the communication quality of SIM 1.

[0167] Therefore, a "paging reason value" can be introduced into the paging message. For example, when a network device (including access network equipment or core network equipment) paging a UE, it can indicate the reason value for paging the UE. For instance, the paging reason value may include a first service type and / or a second service type, where the priority of the first service type is different from that of the second service type. Thus, multi-SIM terminals can determine priorities based on the "paging reason value" and select the higher-priority service that requires the most response for communication.

[0168] For example, a field indicating the paging reason value can be added (or introduced) to the paging message. In an optional embodiment, when the paging message does not contain a field indicating the paging reason value, it can indicate that the network device initiated the paging because of a first service type. In an optional embodiment, when the paging message contains a field indicating the paging reason value, it can indicate that the network device initiated the paging because of a second service type.

[0169] For example, the paging message includes a paging record list, which contains N paging records. For example, the paging message can be extended, such as by including an extended paging record list. For instance, the extended paging record list may include one or more (e.g., up to 32) extended paging records, which may include or indicate a paging reason value. For example, if the paging record list has N paging records, the extended paging record list can also have N extended paging records, thereby indicating the paging reason value corresponding to each UE's paging.

[0170] As mentioned above, the field used to indicate the paging reason value can be an optional field. If the paging message does not contain this field, it indicates that the paging reason value is of the first service type (or the paging service is of the first service type). Conversely, if the paging message contains this field, it indicates that the paging reason value is of the second service type (or the paging service is of the second service type). It is understood that if the paging message contains this field, this application does not limit the specific value of this field.

[0171] For example, the second service type can be a voice service, and the first service type can be a non-voice service, or in other words, the first service type can be a service other than voice. For example, the second service type can be a voice service, and the first service type can be a data service. It is understood that this application does not limit the specific services of the first and second service types.

[0172] For example, a portion of the paging message sent by a network device may be shown in Table 1:

[0173] Table 1

[0174]

[0175] Based on the above description, after the UE receives the paging message, it can be understood as follows:

[0176] 1. If no extended paging message exists, and / or no extended paging message record exists, it indicates that the network device does not support the paging reason value, and the UE responds to the paging as if no paging reason value is indicated. For example, communication with SIM 1 can be disconnected to respond to the network device's paging of SIM 2.

[0177] 2. If an extended paging message exists, and / or an extended paging message record exists, it indicates that the network device supports paging reason values. The UE responds to the paging according to the paging reason value carried in the extended paging record list. For example, a multi-SIM terminal may choose to disconnect communication for SIM 1 and establish communication for SIM 2, or choose to maintain communication for SIM 1 without establishing communication for SIM 2. Alternatively, if the service priority corresponding to the paging is higher than the priority of the currently active service, the multi-SIM terminal may choose to disconnect communication for SIM 1 and establish communication for SIM 2. Similarly, if the service priority corresponding to the paging is lower than the priority of the currently active service, it may choose to maintain communication for SIM 1 without establishing communication for SIM 2. Furthermore, when the service priority corresponding to the paging is the same as the priority of the currently active service, either service can be selected arbitrarily. For example, if there are N extended paging records in the extended paging record list, and the Mth extended paging record indicates a "paging reason value," it means the current paging reason value is the second service type; if it does not indicate a "paging reason value," it means the current paging reason value is the first service type.

[0178] However, not all network devices support adding a field to the paging message to indicate the paging reason value. If some network devices do not support this mechanism, the paging message will also lack this field. In this case, the UE cannot accurately determine whether the paging reason value is not indicated or whether the reason value for the network device initiating the paging is the first service type, thus causing the UE to misunderstand the paging message.

[0179] In other words, based on the above introduction, the following situations are possible:

[0180] Scenario 1: If neither the access network equipment nor the core network equipment supports the "paging reason value", that is, there is no extended paging message, then the UE can respond to the paging as if there is no indication of the "paging reason value".

[0181] Scenario 2: The access network device does not support the "paging reason value," but the core network device does. Since the paging message is sent to the UE by the access network device, even if the core network device supports the paging reason value, the paging message sent by the access network device will not contain an extended paging message (and there will be no extended paging record list or paging reason value, etc.). Therefore, the UE can respond to the paging as if no "paging reason value" is indicated.

[0182] Scenario 3: Both the access network equipment and the core network equipment support "paging reason value". In this case, an extended paging message exists. If the extended paging message does not indicate a paging reason value field, it means the current paging reason value is the first service type (or the paging service is the first service type). If the extended paging message indicates a paging reason value field, it means the current paging reason value is the second service type (or the paging service is the second service type).

[0183] Scenario 4: The access network device supports "paging reason value," while the core network device does not. In this case, paging initiated by the core network device will not indicate the "paging reason value," while paging initiated by the access network device will. Since the paging message is sent to the UE by the access network device (i.e., the paging message is generated by the access network device), extended paging messages can exist. For example, if a paging message includes a paging initiated by the access network device, then the paging message will contain an extended paging message. In this case, if the paging message also includes a paging initiated by the core network device, then the paging message will also contain an extended paging message and / or an extended paging record; however, the extended paging message will not indicate the "paging reason value." For example, Table 2 illustrates a portion of the paging message content, such as the extended paging message, the extended paging record list, the extended paging record field, and the paging reason value field, as shown in Table 2. For example, for the first and third paging records, the corresponding extended paging messages contain extended paging records, but there is no paging reason value. In this case, because there are extended paging messages and / or extended paging record lists, but no paging reason value, the UE will mistakenly interpret the current paging reason value as the first service type.

[0184] Therefore, what should have been a message indicating that the network device does not support the "paging reason value" could be misinterpreted by the UE as a first service type. Consequently, the UE might consider this first service type to have low priority and therefore not respond to the paging. However, when the core network device's paging reason value is a second service type, it can cause the UE to incorrectly not respond to the higher-priority second service type, thus affecting the user experience.

[0185] Table 2

[0186]

[0187]

[0188] It is understandable that the ID included in the paging message can be a UE within a cell. If multiple UEs in a cell have the same PO, the base station can simultaneously paging multiple UEs in one paging message.

[0189] It is understood that although Table 2 shows paging messages and extended paging messages, since they are all included in the paging messages sent by the access network equipment, this application collectively refers to them as paging messages. This description also applies to the following parts of this application.

[0190] For example, part of the paging message content may also be shown in Table 3.

[0191] Table 3

[0192]

[0193] For example, part of the paging message content may also be shown in Table 4.

[0194] Table 4

[0195]

[0196] For example, part of the paging message content may also be shown in Table 5.

[0197] Table 5

[0198]

[0199] It is understandable that the paging messages shown in Tables 2 to 5 can be interpreted as follows: the UE's paging record and its extended paging record can be contained in different fields. However, the information of each UE in the paging record list corresponds one-to-one with the information of each UE in the extended paging record list. That is, the number of paging records in the paging record list is the same as the number of extended paging records in the extended paging record list. For example, if the information included in the paging record list corresponds to UE1, UE2, UE3, and UE4 respectively, then the information included in the extended paging record list corresponds to UE1, UE2, UE3, and UE4 respectively. For instance, the paging message can sequentially include the IDs of UE1, UE2, UE3, and UE4, and sequentially include the paging reason value field corresponding to UE1, UE2, UE3, and UE4. It is understandable that if the paging reason value field corresponding to UE1 does not exist, UE1 can determine its corresponding paging reason value field based on the extended paging record. Alternatively, regarding the method by which the UE determines its corresponding paging reason value field, relevant standards or protocols can be referenced, and this application does not limit this.

[0200] For example, part of the paging message content may also be shown in Table 6.

[0201] Table 6

[0202]

[0203] It can be understood that the paging messages shown in Table 6 can be interpreted as follows: the same paging record includes not only the UE's ID but also the paging reason value field corresponding to that UE. In other words, all information related to the UE can be included in the paging record list. For example, a paging message may sequentially include the UE1 ID and the paging reason value field corresponding to UE1, the UE2 ID and the paging reason value field corresponding to UE2, the UE3 ID and the paging reason value field corresponding to UE3, and the UE4 ID and the paging reason value field corresponding to UE4.

[0204] It is understood that the paging messages shown above are merely examples, and this application does not limit the specific format of the paging messages. The examples of the paging message contents shown in Tables 2 to 6 also apply below, and will not be described in detail hereafter.

[0205] In view of this, this application provides a paging instruction method and apparatus, which can improve the situation where the UE cannot correctly understand the paging message and improve the user experience.

[0206] Before introducing the method provided in this application, the first instruction information and the second instruction information involved in this application will be described in detail below.

[0207] The information regarding the first instruction is as follows:

[0208] The first indication information shown in this application is used to indicate whether the core network device supports paging reason values. Optionally, the first indication information can also be understood as: the first indication information is used to indicate whether the core network device sets (setting can also be replaced by configuring) a paging reason value; or, the first indication information is used to indicate whether the paging corresponding to the core network device indicates a paging reason value; or, the first indication information is used to indicate whether the paging corresponding to the UE's first identifier in the paging message (including the first paging message) indicates a paging reason value; or, the first indication information is used to indicate whether the paging corresponding to the core network device includes a paging reason value; or, the first indication information is used to indicate whether the paging corresponding to the UE's first identifier in the paging message (including the first paging message) includes a paging reason value; or, the first indication information is used to indicate whether the core network device supports adding a paging reason value in the paging message (including the first paging message); or, the first indication information is used to indicate whether the core network device supports indicating or configuring a paging reason value in the paging message (including the first paging message), etc.

[0209] The above description of the first instruction information is merely an example; the first instruction information may have other forms of description, which will not be detailed here. Any description of the first instruction information that falls within the above meaning is within the scope of protection of this application.

[0210] It is understood that the paging cause value shown in this application can be interpreted as whether the paging cause value is explicitly included in the paging, and whether the paging cause value is implicitly indicated or included in the paging.

[0211] Optionally, the first indication information is used to indicate whether the core network device corresponding to a PLMN supports paging reason values. That is, the core network device belongs to a PLMN, which can be a PLMN serving the UE.

[0212] Optionally, the first indication information is used to indicate whether the core network equipment corresponding to multiple PLMNs supports paging reason values.

[0213] In a RAN sharing scenario, an access network device can connect to multiple core network devices. In this case, different core network devices can belong to different PLMNs. Therefore, the first indication information can be information corresponding to multiple PLMNs.

[0214] In this scenario, for example, the first indication information may include information indicating the identifier of the PLMN. For instance, a core network device corresponding to a PLMN may correspond to one indication information (i.e., indication information on whether paging reason values ​​are supported). Alternatively, since there are only two possibilities regarding whether paging reason values ​​are supported, some PLMNs among multiple PLMNs may correspond to one indication information, and another group of PLMNs among multiple PLMNs may correspond to another indication information. For example, the first indication information may be a list including information corresponding to one or more PLMNs, such as the indication information of the core network device corresponding to the PLMN.

[0215] For example, the format of this list can be as shown in Table 7:

[0216] Table 7

[0217]

[0218] The list shown in Table 7 can be understood as including the identifiers of each PLMN in sequence, followed by the indication information of the core network equipment corresponding to each PLMN.

[0219] For example, the format of this list can be as shown in Table 8:

[0220] Table 8

[0221]

[0222] The list shown in Table 8 can be understood as including, in sequence, the identifier of PLMN1 and the indication information of the core network device corresponding to PLMN1; the identifier of PLMN2 and the indication information of the core network device corresponding to PLMN2; and the identifier of PLMN3 and the indication information of the core network device corresponding to PLMN3.

[0223] Understandably, in the above scenario, when the UE receives the first indication information, it can determine whether the core network equipment corresponding to the first PLMN supports the paging reason value, where the first PLMN is the PLMN serving the UE. In other words, the UE can obtain whether the core network equipment corresponding to the first PLMN supports the paging reason value from the first indication information based on the identifier of the first PLMN serving it. The method by which the UE obtains the identifier of the first PLMN can be found in relevant standards or protocols, and this application does not limit its scope.

[0224] The information regarding the second instruction is as follows:

[0225] The second indication information shown in this application is used to indicate whether the access network device supports paging reason values. Optionally, the second indication information can also be understood as: the second indication information is used to indicate whether the access network device sets (setting can also be replaced by configuring) a paging reason value; or, the second indication information is used to indicate whether the paging corresponding to the access network device indicates a paging reason value; or, the second indication information is used to indicate whether the paging corresponding to the UE's second identifier in the paging message (including the first paging message) indicates a paging reason value; or, the second indication information is used to indicate whether the paging corresponding to the access network device includes a paging reason value; or, the second indication information is used to indicate whether the paging corresponding to the UE's second identifier in the paging message (including the first paging message) includes a paging reason value; or, the second indication information is used to indicate whether the access network device supports adding a paging reason value in the paging message (including the first paging message); or, the second indication information is used to indicate whether the access network device supports indicating or configuring a paging reason value in the paging message (including the first paging message), etc.

[0226] The above description of the second instruction information is merely an example; the second instruction information may have other forms of description, which will not be detailed here. Any description of the second instruction information that falls within the above meaning is within the scope of protection of this application.

[0227] Understandably, the explanation of the first and second identifiers can be found in the description above, and will not be elaborated here.

[0228] The relationship between the first instruction information and the second instruction information can be seen as follows:

[0229] For example, the first indication information and the second indication information may be included in different messages. For instance, the first indication information may be included in the third field of a first NAS message, and the second indication information may be included in the fourth field of a second NAS message. Or, for example, the first indication information may be included in a NAS message, and the second indication information may be included in an SIB message, etc. For messages including the first indication information and messages including the second indication information, please refer to the following, which will not be detailed here.

[0230] For example, the first indication information and the second indication information can be contained in the same message. For instance, the SIB includes a third field and a fourth field, where the third field carries the first indication information and the fourth field carries the second indication information. As another example, the SIB includes a fifth field with a bit length of 2 bits, where one bit carries the first indication information and the other bit carries the second indication information. It can be understood that when the first and second indication information are carried in the fifth field, the above description of the fifth field can also be interpreted as: the first subfield of the fifth field carries the first indication information, and the second subfield of the fifth field carries the second indication information.

[0231] It is understood that, for ease of description, the method provided in this application will be illustrated below using the example of the first indication information being carried in the third field and the second indication information being carried in the fourth field. However, the relationship between the first indication information and the third field, and the relationship between the second indication information and the fourth field, also apply to the relationship between the first indication information and the fifth field. For example, the relationship between the first indication information and the first subfield of the fifth field can be referenced to the relationship between the first indication information and the third field. Similarly, the relationship between the second indication information and the second subfield of the fifth field can be referenced to the relationship between the second indication information and the fourth field.

[0232] The relationship between the first indication information and the third field can be seen as follows:

[0233] For example, the first indication information is carried in the third field. When the third field does not exist, the first indication information indicates that the core network device does not support the paging reason value; when the third field exists, the first indication information indicates that the core network device supports the paging reason value. In other words, the presence or absence of the third field can indicate whether the core network device supports the paging reason value. If the third field does not exist, it means that the core network device does not support the paging reason value; if the third field exists, it means that the core network device supports the paging reason value. When the third field exists, this application does not limit the value of the third field. It is understood that the above-described method is merely an example; the absence of the third field can indicate that the core network device supports the paging reason value; the presence of the third field indicates that the core network device does not support the paging reason value. It is understood that this application does not limit the specific value of the third field when it exists.

[0234] For example, when the value of the third field is the first value, the first indication information is used to indicate that the core network device supports the paging reason value; when the value of the third field is the second value, the first indication information is used to indicate that the core network device does not support the paging reason value. For instance, the third field is a 1-bit field, meaning its value is either 1 or 0. If the value of the third field is 1 (the first value), it indicates that the core network device supports the paging reason value. Conversely, if the value of the third field is 0 (the second value), it indicates that the core network device does not support the paging reason value. It is understood that the above values ​​are merely examples and should not be construed as limiting this application. It is also understood that the bit length of the third field can be 2 bits, etc., and this application does not limit this.

[0235] The relationship between the second indication information and the fourth field can be seen as follows:

[0236] For example, the second indication information is carried in the fourth field. If the fourth field is not present, the second indication information is used to indicate that the access network device does not support the paging reason value; if the fourth field is present, the second indication information is used to indicate that the access network device supports the paging reason value.

[0237] For example, the fourth field takes the third value, and the second indication information is used to indicate that the access network device supports the paging reason value; the fourth field takes the fourth value, and the second indication information is used to indicate that the access network device does not support the paging reason value.

[0238] It is understood that the first value shown above may be equal to the third value, or the first value may not be equal to the third value. At the same time, the second value may be equal to the fourth value, or the second value may not be equal to the fourth value; this application does not limit this.

[0239] It is understandable that the explanation of the third instruction information and the fourth field can be found in the description of the first instruction information and the third field, and will not be elaborated here.

[0240] Figure 2 This is a flowchart illustrating a paging indication method provided in an embodiment of this application, as shown below. Figure 2 As shown, the method includes:

[0241] 201. The UE obtains first indication information, which is used to indicate whether the core network equipment supports paging reason values.

[0242] The following are some methods for the UE to obtain the first indication information:

[0243] Method 1: Obtain the first instruction information from the first paging message.

[0244] For method 1, steps 201 and 202 in this embodiment can be replaced by: the base station sending a first paging message to the UE, the UE receiving the first paging message, and obtaining first indication information from the first paging message. For example, the first indication information is included in the third field of the first paging message.

[0245] Method 2: Obtain the first indication information from the DCI used to schedule the first paging message.

[0246] Generally, the DCI can be used to indicate the time-frequency resources of the first paging message, so that the UE receives the first paging message according to the time-frequency resources indicated by the DCI. Therefore, the DCI may include first indication information, which is contained in the third field of the DCI. As mentioned above, the DCI used to schedule the first paging message can also be called a DCI scrambled by P-RNTI, or paging control information, etc., and the embodiments of this application are not limited thereto.

[0247] For example, in methods 1 and 2 above, when both a core network device-initiated paging (CN paging) and a base station-initiated paging (RAN paging) exist in the first paging message, the UE obtains the first indication information from the first paging message or the DCI. That is, when both CN and RAN paging exist in the first paging message, the base station can set the first indication information in the DCI or the first paging message. In this case, the UE needs to parse the first indication information; for example, the presence or absence of the first indication information indicates whether the CN supports a "paging reason value." For example, when neither CN nor RAN paging exists simultaneously, the base station may not set the first indication information in the DCI or the paging message, and the UE does not need to parse the first indication information.

[0248] Method 3: Obtain the first instruction information from NAS messages.

[0249] If the core network device sends the NAS message to the UE, the UE receives the NAS message, which includes first indication information. For example, the NAS message can be sent from the core network device to the base station, and then from the base station to the UE.

[0250] For example, upon power-on, during a location update, or upon reconnection to the network, the UE executes a registration process to obtain an allowed network slice. For instance, the UE sends a registration request message to the core network device, and the core network device receives the registration request message. The core network device sends a registration acceptance message to the UE, and the UE receives the registration acceptance message, which includes identification information of the allowed network slice. It is understood that this application embodiment does not limit when the UE executes the registration process.

[0251] Optionally, the registration acceptance message also includes first indication information. The first indication information included in the registration acceptance message indicates whether the core network device supports paging reason values. For example, this first indication information can be carried in the third field of the registration acceptance message. Optionally, the registration request message includes request information for requesting whether the core network device supports paging reason values. Therefore, the core network device includes the first indication information in the registration acceptance message based on this request information, such as the first indication information being carried in the third field. Optionally, the registration request message includes information for indicating whether the UE supports paging reason values. For example, if the registration request message includes information for indicating that the UE supports paging reason values, the core network device can return the first indication information to the UE based on this information. It is understood that if the registration request message includes information for indicating that the UE does not support paging reason values, then regardless of whether the core network device supports paging reason values, the UE cannot correctly interpret the paging corresponding to the core network device. In this case, the core network device may not return the first indication information.

[0252] Method 4: Obtain the first instruction information from the SIB.

[0253] If the base station sends an SIB to the UE, the UE receives the SIB and obtains the first indication information. Optionally, the base station receives third indication information from the core network equipment. This third indication information indicates whether the core network equipment supports paging reason values, and the base station obtains the first indication information based on this third indication information. For a description of the third indication information, please refer to the above description of the first indication information; it will not be detailed here. Optionally, the base station obtains this first information from the OAM equipment, such as by configuring the first indication information to the base station. Optionally, the base station receives a second paging message from the core network equipment and obtains the first indication information based on the first field included in the second paging message. In other words, the base station can obtain the first indication information through self-learning. That is, if the base station receives a paging message corresponding to the core network equipment, and the paging message corresponding to the core network equipment indicates a "paging reason value," the base station can know that the core network equipment supports the "paging reason value" and obtain the first indication information. For example, the first indication information is carried in the third field of the SIB.

[0254] It is understood that this application does not limit which SIB the first instruction information is included in. For example, the first instruction information may be included in SIB1, or SIB2, or SIB3, etc., which will not be detailed here.

[0255] For methods 3 and 4 above, the UE can obtain the first indication information before receiving the first paging message, thereby effectively ensuring the efficiency of the UE in parsing the first paging message.

[0256] As you can understand, the explanation of the first instruction information can be found in the description above, and will not be elaborated on here.

[0257] 203. The base station sends a first paging message to the UE, and the UE receives the first paging message, which includes the first information corresponding to the UE.

[0258] In this embodiment, the first information corresponds to a paging initiated by the core network device. For example, the UE can be an idle UE, and the first information includes the UE's first identifier, such as IMSI or 5G-S-TMSI. That is, the UE receiving the CN paging in an idle state is the UE whose UE ID in the first paging message corresponds to 5G-S-TMSI. If the UE receiving the RAN paging in an inactive state, the first indication information can be ignored, and the correct parsing of the "paging reason value" in the first paging message can be determined directly by the presence or absence of a second field (such as an extended paging message field and / or an extended paging record list field).

[0259] For example, using Tables 2 to 6, the first information could be the information corresponding to the UE in the extended paging messages shown in Tables 2 to 5. Alternatively, the first information could be all the information corresponding to the UE shown in Tables 2 to 6, such as the UE's identifier.

[0260] The following will describe in detail the method provided in the embodiments of this application, taking as an example whether the first information includes the first field and whether the first paging message includes the second field.

[0261] For example, the first field shown in the embodiments of this application may also be called a paging reason value field, or a service type field, etc. The embodiments of this application do not limit the specific name of the first field. It can be called a paging reason value field because the first field can be used to indicate a paging reason value. It can be called a service type field because the paging reason value indicated by the first field can be a first service type or a second service type, etc.

[0262] For example, the second field may also be called an extended paging message field, or an extended paging record list field, etc. The specific name of the second field is not limited in this embodiment. Alternatively, the second field may also be understood as the first field corresponding to each UE included in the first paging message, that is, the first field corresponding to each UE can be understood as a subfield of the second field.

[0263] It should be understood that the first field can be included in the first information, while the second field is included in the first paging message. That is, the first information distinguishes different UEs, and the first field contains information for that specific UE. The second field, however, can include information from multiple UEs, such as some or all of the information in the first information. Alternatively, the second field can be described as including extended information for multiple UEs, which could include extended paging record lists or extended paging messages as shown in Tables 2 to 6. Furthermore, the second field could include paging reason values ​​indicated by the access network device to UE1, UE2, and UE3, etc., as listed below.

[0264] For example, when the first paging message includes first information corresponding to multiple UEs and a second field, such as one first information corresponding to one UE, the correspondence between the first information and the UE, and the correspondence between the second field and the UE, can be shown in Tables 2 to 6. For example, if the first paging message includes first information corresponding to UE1, first information corresponding to UE2, and first information corresponding to UE3, then the second field can sequentially include extended information corresponding to UE1, extended information corresponding to UE2, and extended information corresponding to UE3.

[0265] The methods provided in the embodiments of this application will be described below from different implementation methods.

[0266] Implementation Method 1

[0267] The first information does not include the first field used to indicate the paging reason value.

[0268] If the first information does not include a first field indicating the paging reason value, there are two possibilities:

[0269] Case 1: When the first indication information is used to indicate that the core network equipment supports the paging reason value, the first information is used to indicate the paging reason value.

[0270] For example, the first information is used to indicate the paging reason value, which can also be understood as: the first information indicates the paging reason value, or the paging reason value is indicated in the paging corresponding to the core network device, or the paging reason value is set in the paging corresponding to the core network device, etc. (Refer to the relevant description in the first indication information above). That is to say, although the first information does not explicitly include a first field for indicating the paging reason value, it can be obtained from the first indication information that the first information implicitly indicates the paging reason value. That is, the terminal device can confirm that the core network device has indicated the paging reason value based on the first indication information.

[0271] For example, the paging reason value mentioned above can be a first service type, or the service corresponding to the first information can be referred to as the first service type. That is, in the above case, the paging reason value indicated by the first information is the first service type. That is, the paging reason initiated by the core network device is due to the arrival of the first service type, thereby triggering the paging. For example, the first service type can be a non-voice service, or a data service, etc. This application embodiment does not limit the first service type. As long as the priority of the first service type is lower than the priority of the second service type, it is within the protection scope of this application embodiment regardless of which service type it belongs to. For the description of the first service type and the second service type, please refer to the description above, which will not be described in detail here.

[0272] Scenario 2: When the first indication information is used to indicate that the core network equipment does not support the paging reason value, the first information does not indicate the paging reason value.

[0273] In the above situation, the UE can clearly know from the first indication information that the first information does not indicate a paging reason value. Therefore, the UE can choose whether to respond to the paging as if no paging reason value was indicated.

[0274] Implementation Method Two

[0275] The first paging message includes a second field that indicates the paging reason value.

[0276] Optionally, the first paging message also includes second information, which corresponds to a paging initiated by the base station. Combining with the above implementation method one, the first field and the second field can be understood as follows: the first paging message includes first information and second information, where the first information corresponds to a paging initiated by the core network device, and the second information corresponds to a paging initiated by the base station. Furthermore, the first paging message includes a second field, and if the first information includes the first field, the first field can be included in the second field. For example, the second field may include part or all of the information from the first information, or it may also include part or all of the information from the second information. That is, the first paging message includes both the paging corresponding to the core network device (also known as CN paging) and the paging corresponding to the base station (also known as RAN paging). In this case, if the base station supports paging reason values ​​but the core network device does not support paging reason values, then the first paging message includes the second field, but for the UE, the first information does not include the first field.

[0277] For example, if the first paging message includes the second field but not the first field, it can also be understood that: although the core network device does not support adding a paging reason value field to the paging it initiates, since the first paging message is generated by the base station and sent to the UE, the base station will generate the first paging message based on whether it supports paging reason values. For example, the base station may include the second field in the generated first paging message based on its support for paging reason values. However, since the core network device does not support paging reason values, the second field may not include the first field corresponding to the UE. This first indication information improves the situation where the UE cannot correctly understand the first field and improves the situation where the UE might understand that the core network device supports paging reason values ​​and that the paging reason value is the first service type.

[0278] For example, as shown in Table 2, the second field can be an extended paging message or an extended paging record list as shown above, and the first field is the paging reason value field as shown above. For example, if the first paging message includes an extended paging record list (the second field), this extended paging record list includes CN paging (such as the first message) and RAN paging (such as the second message). CN paging does not include the paging reason value field (the first field), while RAN paging does include the paging reason value field. It is understood that the specific names of the first and second fields are not limited in this embodiment.

[0279] Implementation Method 3

[0280] The first information includes a first field indicating a paging reason value, which in turn indicates a second service type. For example, the second service type could be a voice service; that is, the paging reason value indicated by the first information is the second service type. In this implementation, the UE, combining the first indication information and the first field, can more accurately determine whether a paging reason value has been set for a paging initiated by the core network device.

[0281] For example, the above three implementation methods can also be explained as follows from the UE's perspective:

[0282] The behavior of the UE receiving the first paging message and correctly parsing the "paging reason value" in the first paging message:

[0283] 1. The UE receives (for example only) the first indication information and indicates that the CN supports the "paging reason value". When the first paging message contains a second field (also referred to as: an extended paging message, an extended paging record list exists):

[0284] 1) If the paging message corresponding to the CN (i.e., the first information shown above) includes a "paging reason value" (or the paging message corresponding to the CN indicates a paging reason value), then the UE interprets the paging reason value of the current paging as the second service type (such as voice service), and the UE responds to the paging according to the second service type. The UE responds to the paging based on the priority of the second service type and the current service.

[0285] 2) If the paging condition corresponding to the CN does not include a "paging reason value", the UE interprets the paging reason value of the current paging as the first service type (such as non-voice service), and the UE responds to the paging according to the first service type. The UE responds to the paging based on the priority of the first service type and the current service.

[0286] 2. The UE receives the first indication information (for example only), and indicates that the CN does not support the "paging reason value". When the first paging message contains a second field (also known as: an extended paging message, an extended paging record list):

[0287] 1) There will be no situation where the paging corresponding to CN includes the first field.

[0288] 2) If the paging corresponding to CN does not include a "paging reason value", then the UE interprets the current paging reason value as no "paging reason value" is set, and the UE responds to the paging as if no "paging reason value" is indicated.

[0289] Understandably, the explanation of responding to paging can be found in the description above, and will not be elaborated here.

[0290] In one possible implementation, steps 201 and 203 above can also be replaced with:

[0291] The base station sends a first paging message to the UE, and the UE receives the first paging message, which includes first information corresponding to the UE. If the first information does not include a first field, but first indication information exists, the paging reason value is determined based on the first information (or the first indication information).

[0292] Determining the paging reason value based on the first information means: if the first indication information is used to indicate that the core network equipment supports the paging reason value, then the UE determines the paging reason value as the first service type based on the first information; if the first indication information is used to indicate that the core network equipment does not support the paging reason value, then the UE determines that no paging reason value is indicated based on the first information, or that no paging reason value is set in the paging (i.e., the first information) corresponding to the core network equipment.

[0293] Optionally, if the first information includes the first field, the paging reason value is determined to be the second service type based on the first information. It is understood that for specific explanations of the above replacement method, please refer to the above description; further details will not be provided here.

[0294] In one possible implementation, Figure 2 The method shown may also include:

[0295] 202. The UE obtains second indication information, which is used to indicate whether the base station supports paging reason values.

[0296] If the second indication information is used to indicate that the base station supports the paging reason value, the first paging message includes the second field. However, if the second indication information is used to indicate that the base station does not support the paging reason value, then the first paging message will not include the second field, nor will it include the first field.

[0297] It is understood that the second indication information shown above is only an example, and the base station may choose not to send the second indication information to the UE. In this case, the UE can assume that the base station supports paging reason values.

[0298] Understandably, if there is no paging initiated by the base station in the first paging message, then the second field is not included in the first paging message. If there is no paging initiated by the core network equipment in the first paging message, the base station can generate the first paging message according to whether it supports the paging reason value. If the base station does not support the paging reason value, then the format of the first paging message can be as described above for paging messages. If the base station supports the paging reason value, then the first paging message includes the second field.

[0299] It is understood that although the above method is numbered sequentially from step 201 to step 203, the numbering does not represent the chronological order of the embodiments in this application. For example, the UE can simultaneously obtain the first indication information and the second indication information. For example, the UE can also obtain the first indication information first, and then obtain the second indication information. For example, the UE can receive a first paging message, which includes both the first and second indication information. For example, the UE can first obtain the second indication information, and then receive the first paging message, which includes the first indication information. For example, the UE can first obtain the first indication information, then receive the first paging message, and then obtain the second indication information, etc., which will not be detailed here.

[0300] In the technical solution provided in this application embodiment, since the first indication information can be used to indicate whether the core network device supports the paging reason value, even if the first information does not include the first field, the terminal device can still obtain the paging reason value indicated in the first information when the first indication information is used to indicate that the core network device supports the paging reason value. This improves the situation where the terminal device cannot correctly understand the first information, enabling the terminal device to clearly know whether the paging message indicates a paging reason value, thus improving the user experience.

[0301] In addition, the embodiments of this application also provide the following two schemes, which enable the UE to clearly know the content indicated by the paging message.

[0302] Option 1: When the base station determines that the core network equipment does not support the paging reason value, the first paging message can be generated without adding the paging reason value to the paging message, regardless of whether the base station supports the paging reason value or not. In this case, the UE can understand that the network equipment does not support the paging reason value.

[0303] In other words, if the RAN determines that the CN does not support the "paging reason value", then the RAN will not use the "paging reason value" feature. Therefore, there will be no extended paging message in the first paging message, and the UE will understand that the network device does not support the "paging reason value".

[0304] For example, the first paging message includes paging initiated by core network equipment and paging initiated by base station. For example, the first paging message includes paging initiated by core network equipment.

[0305] Option 2: The third paging message corresponds to paging initiated by the core network equipment, and the fourth paging message corresponds to paging initiated by the base station. That is, within the same PO, when both the core network equipment and the base station need to initiate paging (i.e., both CN paging and RAN paging exist simultaneously), the CN paging and RAN paging can be sent as two separate paging messages. One paging message only includes the CN paging; if this paging message does not contain extended paging messages, it indicates that the CN paging does not support the "paging reason value." The other paging message only includes the RAN paging; if this paging message contains extended paging messages, it indicates that the RAN paging supports the "paging reason value."

[0306] The following describes the communication device provided in the embodiments of this application.

[0307] This application divides the communication device into functional modules according to the above-described method embodiments. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or as software functional modules. It should be noted that the module division in this application is illustrative and represents only one logical functional division; other division methods may be used in actual implementation. The following will combine... Figures 3 to 5 The communication device of the embodiments of this application is described in detail.

[0308] Figure 3 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application, such as... Figure 3 As shown, the communication device includes a processing unit 301 and a transceiver unit 302.

[0309] In some embodiments of this application, the communication device may be a terminal device or a chip in a terminal device as shown above. That is, the communication device may be used to perform the steps or functions performed by the terminal device or UE in the method embodiments described above.

[0310] Processing unit 301 is configured to obtain first indication information, which is used to indicate whether the core network device supports paging reason value;

[0311] The transceiver unit 302 is used to input a first paging message, which includes first information corresponding to the communication device. The first information does not include a first field for indicating a paging cause value. When the first indication information is used to indicate that the core network device supports the paging cause value, the first information is used to indicate the paging cause value.

[0312] It can be understood that the processing unit 301, used to obtain the first indication information, can also be understood as: the processing unit 301 obtains the first indication information through the transceiver unit 302. For example, the transceiver unit 302 is used to input the first indication information and then input the first indication information to the processing unit 301. Another example is that the processing unit 301 obtains the first indication information from the first paging message input by the transceiver unit 302 or from the DCI used to schedule the first paging message.

[0313] In one possible implementation, if the first indication information is used to indicate that the core network device does not support the paging reason value, the first information does not indicate the paging reason value.

[0314] In one possible implementation, if the first information includes a first field, the first information is used to indicate a second service type (such as voice service).

[0315] In one possible implementation, the first indication information is used to indicate whether the core network equipment corresponding to a Public Land Mobile Network (PLMN) supports the paging reason value; or, the first indication information is used to indicate whether the core network equipment corresponding to multiple PLMNs supports the paging reason value.

[0316] In one possible implementation, different core network devices belong to different public land mobile networks (PLMNs).

[0317] In one possible implementation, the method further includes:

[0318] The processing unit 301 is further configured to determine, based on the first indication information, whether the core network equipment corresponding to the first public land mobile network (PLMN) supports the paging reason value, wherein the first PLMN is a PLMN serving the aforementioned communication device.

[0319] In one possible implementation, the first paging message includes a second field for indicating a paging reason value; if the first information includes the first field, the first field is contained within the second field.

[0320] In one possible implementation, the method further includes:

[0321] The processing unit 301 is also configured to obtain second indication information, which is used to indicate whether the access network device supports the paging reason value.

[0322] It is understood that, regarding the processing unit 301, when it is used to obtain the second instruction information, the specific description of the processing unit 301 and the transceiver unit 302 can also be found in the above description of the processing unit used to obtain the first instruction information, which will not be described in detail here.

[0323] In one possible implementation, when the second indication information is used to indicate that the access network device supports the paging reason value, the first paging message includes a second field for indicating the paging reason value; when the first information includes a first field, the first field is included in the second field.

[0324] In one possible implementation, the first paging message further includes second information corresponding to a paging initiated by the access network device.

[0325] In one possible implementation, the first instruction information is contained in any of the following messages:

[0326] Non-access stratum (NAS) messages, system information blocks (SIBs), first paging messages, or downlink control information (DCIs) used to schedule the first paging message.

[0327] In one possible implementation, the first indication information is carried in the third field. If the third field is not present, the first indication information is used to indicate that the core network device does not support the paging reason value. If the third field is present, the first indication information is used to indicate that the core network device supports the paging reason value.

[0328] In one possible implementation, the third field takes the first value, and the first indication information is used to indicate that the core network device supports the paging reason value; the third field takes the second value, and the first indication information is used to indicate that the core network device does not support the paging reason value.

[0329] In one possible implementation, the second indication information is carried in the fourth field. If the fourth field is not present, the second indication information is used to indicate that the access network device does not support the paging reason value; if the fourth field is present, the second indication information is used to indicate that the access network device supports the paging reason value.

[0330] In one possible implementation, the fourth field takes the third value, and the second indication information is used to indicate that the access network device supports the paging reason value; the fourth field takes the fourth value, and the second indication information is used to indicate that the access network device does not support the paging reason value.

[0331] In this embodiment of the application, the descriptions of the first paging message, the first information, the first field, the second field, the second indication information, the third field, or the fourth field can be found in the descriptions in the above method embodiments, and will not be detailed here.

[0332] It is understood that the specific descriptions of the transceiver unit and processing unit shown in the embodiments of this application are merely examples. For the specific functions or execution steps of the transceiver unit and processing unit, please refer to the above method embodiments, which will not be detailed here. For example, the processing unit 301 can also be used to perform… Figure 2 The transceiver unit 302 can also be used to perform steps 201 and 202 as shown. Figure 2 The receiving step in step 203 shown.

[0333] Reuse Figure 3 In other embodiments of this application, the communication device may be an access network device or a chip within the access network device as shown above. That is, the communication device can be used to perform the steps or functions executed by the access network device or base station in the method embodiments described above.

[0334] Processing unit 301 is used to obtain first indication information, which is used to indicate whether the core network equipment supports paging reason value;

[0335] The transceiver unit 302 is used to output first indication information and a first paging message. The first paging message includes first information corresponding to the terminal device. The first information does not include a first field for indicating a paging reason value. When the first indication information is used to indicate that the core network device supports the paging reason value, the first information is used to indicate the paging reason value.

[0336] In one possible implementation, processing unit 301 is used to obtain a first paging message; transceiver unit 302 is used to output the first paging message, which includes first information and first indication information.

[0337] In one possible implementation, the processing unit 301 is used to obtain paging control information (i.e., DCI); the transceiver unit 302 is used to output the paging control information and the first paging message.

[0338] For example, the transceiver unit 302 is used to output first indication information and first paging message, including: the transceiver unit 302 is used to send the first indication information to the terminal device and send the first paging message to the terminal device.

[0339] It is understood that the relationship between the first paging message and the first indication information shown here can be referred to the above method embodiments, and will not be described in detail here.

[0340] In one possible implementation, processing unit 301 is specifically configured to obtain first indication information based on third indication information from the core network device, the third indication information being used to indicate whether the core network device supports paging reason values; or, processing unit 301 is specifically configured to obtain the first indication information from an operation, administration and maintenance (OAM) device; or, processing unit 301 is specifically configured to receive a second paging message from the core network device via transceiver unit 302, and obtain the first indication information based on a first field included in the second paging message.

[0341] In one possible implementation, if the first indication information is used to indicate that the core network device does not support the paging reason value, the first information does not indicate the aforementioned paging reason value.

[0342] In one possible implementation, if the first information includes a first field, the first information is used to indicate a second service type (such as voice service).

[0343] In one possible implementation, the first indication information is used to indicate whether a core network device supports a paging reason value; or, the first indication information is used to indicate whether multiple core network devices support a paging reason value.

[0344] In one possible implementation, the first message corresponds to a paging initiated by a core network device.

[0345] In one possible implementation, the first paging message includes a second field for indicating a paging reason value; if the first information includes the first field, the first field is contained within the second field.

[0346] In one possible implementation, the transceiver unit 302 is further configured to output second indication information, which indicates whether the communication device supports paging reason values.

[0347] In one possible implementation, when the second indication information is used to indicate that the communication device supports a paging reason value, the first paging message includes a second field for indicating the paging reason value; when the first information includes a first field, the first field is included in the second field.

[0348] In one possible implementation, the first paging message further includes second information corresponding to a paging initiated by the communication device.

[0349] In one possible implementation, the first instruction information is contained in any of the following messages:

[0350] Non-access stratum (NAS) messages, system information blocks (SIBs), first paging messages, or downlink control information (DCIs) used to schedule first paging messages.

[0351] In one possible implementation, the first indication information is carried in the third field. If the third field is not present, the first indication information is used to indicate that the core network device does not support the paging reason value. If the third field is present, the first indication information is used to indicate that the core network device supports the paging reason value.

[0352] In one possible implementation, the third field takes the first value, and the first indication information is used to indicate that the core network device supports the paging reason value; the third field takes the second value, and the first indication information is used to indicate that the core network device does not support the paging reason value.

[0353] In one possible implementation, the second indication information is carried in the fourth field. If the fourth field is not present, the second indication information is used to indicate that the communication device does not support the paging reason value; if the fourth field is present, the second indication information is used to indicate that the communication device supports the paging reason value.

[0354] In one possible implementation, the fourth field takes the value of the third value, and the second indication information is used to indicate that the communication device supports the paging reason value; the fourth field takes the value of the fourth value, and the second indication information is used to indicate that the communication device does not support the paging reason value.

[0355] In this embodiment of the application, the descriptions of the first paging message, the first information, the first field, the second field, the second indication information, the third field, or the fourth field can be found in the descriptions in the above method embodiments, and will not be detailed here.

[0356] It is understood that the specific descriptions of the transceiver unit and processing unit shown in the embodiments of this application are merely examples. For the specific functions or execution steps of the transceiver unit and processing unit, please refer to the above method embodiments, which will not be detailed here. For example, the transceiver unit 302 can also be used to perform… Figure 2 The sending step in step 203 shown.

[0357] The terminal device and access network device according to embodiments of this application have been described above. The following describes the possible product forms of the terminal device and access network device. It should be understood that any device possessing the above-described features... Figure 3 Any product in any form that possesses the functions of the aforementioned terminal device, or any product that has the above-mentioned features. Figure 3 Any form of the access network device described herein falls within the protection scope of the embodiments of this application. It should also be understood that the following description is merely illustrative and does not limit the product forms of the terminal devices and access network devices in the embodiments of this application to these examples.

[0358] In one possible implementation, Figure 3 In the communication device shown, the processing unit 301 may be one or more processors, and the transceiver unit 302 may be a transceiver. Alternatively, the transceiver unit 302 may also be a transmitting unit and a receiving unit. The transmitting unit may be a transmitter, and the receiving unit may be a receiver. The transmitting unit and the receiving unit are integrated into one device, such as a transceiver. In the embodiments of this application, the processor and the transceiver may be coupled, etc. The connection method between the processor and the transceiver is not limited in the embodiments of this application.

[0359] like Figure 4 As shown, the communication device 40 includes one or more processors 420 and transceivers 410.

[0360] For example, when the communication device is used to perform the steps, methods or functions performed by the terminal device or UE, the processor 420 is used to obtain first indication information; the transceiver 410 is used to receive a first paging message from the access network device.

[0361] For example, when the communication device is used to perform the steps, methods or functions performed by the access network device or base station, the processor 420 is used to obtain first indication information; the transceiver 410 is used to send the first indication information and the first paging message to the terminal device.

[0362] For example, when the communication device is used to perform the steps, methods or functions performed by the access network device or base station, the processor 420 is used to obtain a first paging message; the transceiver 410 is used to send the first paging message to the terminal device, the first paging message including first indication information.

[0363] For example, when the communication device is used to perform the steps, methods, or functions performed by the access network device or base station described above, the processor 420 is used to obtain paging control information (such as DCI for scheduling the first paging message); the transceiver 410 is used to send the paging control information to the terminal device and to send the first paging message to the terminal device.

[0364] In the various embodiments of this application, the descriptions of the first paging message, the first information, the first field, the second field, the second indication information, the third field, or the fourth field can be found in the descriptions in the above method embodiments, and will not be detailed here.

[0365] Understandably, for more detailed information on the processor and transceiver, please refer to [link / reference needed]. Figure 3 The descriptions of the processing unit and transceiver unit shown will not be repeated here.

[0366] exist Figure 4 In various implementations of the communication apparatus shown, the transceiver may include a receiver for performing a receiving function (or operation) and a transmitter for performing a transmitting function (or operation). The transceiver is also used to communicate with other devices / appliances via a transmission medium.

[0367] Optionally, the communication device 40 may further include one or more memories 430 for storing program instructions and / or data. The memories 430 and the processor 420 are coupled. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, for information exchange between devices, units, or modules. The processor 420 may operate in conjunction with the memories 430. The processor 420 may execute program instructions stored in the memories 430. Optionally, at least one of the aforementioned memories may be included in the processor.

[0368] This application embodiment does not limit the specific connection medium between the transceiver 410, processor 420, and memory 430. This application embodiment... Figure 4 The memory 430, processor 420, and transceiver 410 are connected via a bus 430, and the bus is in... Figure 4 The connections between other components are shown in bold and are for illustrative purposes only, not as limiting information. The bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, Figure 4 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0369] In the embodiments of this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or being executed by a combination of hardware and software modules within the processor.

[0370] In this application embodiment, the memory may include, but is not limited to, non-volatile memory such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (RAM), erasable programmable read-only memory (EPROM), read-only memory (ROM), or compact disc read-only memory (CD-ROM), etc. Memory is any storage medium capable of carrying or storing program code in the form of instructions or data structures, and capable of being read and / or written by a computer (such as the communication device shown in this application), but is not limited to this. The memory in this application embodiment may also be a circuit or any other device capable of implementing storage functions, used to store program instructions and / or data.

[0371] When the communication device is a terminal device or UE, the processor 420 is mainly used to process communication protocols and communication data, control the entire communication device, execute software programs, and process the data of the software programs. The memory 430 is mainly used to store software programs and data. The transceiver 410 may include control circuitry and an antenna. The control circuitry is mainly used for converting baseband signals to radio frequency signals and processing radio frequency signals. The antenna is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. Input / output devices, such as touch screens, displays, and keyboards, are mainly used to receive user input data and output data to the user.

[0372] When the communication device is powered on, the processor 420 can read the software program in the memory 430, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor 420 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit then performs RF processing on the baseband signal and transmits the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 420. The processor 420 converts the baseband signal into data and processes the data.

[0373] In another implementation, the radio frequency circuitry and antenna can be set up independently of the processor performing baseband processing. For example, in a distributed scenario, the radio frequency circuitry and antenna can be arranged remotely, independent of the communication device.

[0374] It is understood that the communication device shown in the embodiments of this application may also have more than Figure 4 This application does not limit the use of other components or other related elements. The methods performed by the processor and transceiver shown above are merely examples; the specific steps performed by the processor and transceiver can be found in the methods described above.

[0375] In another possible implementation Figure 3 In the communication device shown, the processing unit 301 can be one or more logic circuits, and the transceiver unit 302 can be an input / output interface, or a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiver unit 302 can also be a transmitting unit and a receiving unit; the transmitting unit can be an output interface, and the receiving unit can be an input interface, integrated into one unit, such as an input / output interface. Figure 5 As shown, Figure 5 The communication device shown includes logic circuitry 501 and interface 502. That is, the processing unit 301 can be implemented using logic circuitry 501, and the transceiver unit 302 can be implemented using interface 502. The logic circuitry 501 can be a chip, processing circuit, integrated circuit, or system-on-chip (SoC) chip, etc., and the interface 502 can be a communication interface, input / output interface, pins, etc. For example, Figure 5 Taking the aforementioned communication device as an example, the chip includes logic circuit 501 and interface 502.

[0376] In this embodiment, the logic circuit and the interface can also be coupled to each other. The specific connection method between the logic circuit and the interface is not limited in this embodiment.

[0377] For example, when the communication device is used to perform the method, function or step performed by the terminal device described above, the logic circuit 501 is used to obtain the first indication information; the interface 502 is used to input the first paging message.

[0378] For example, when the communication device performs the method, function, or step executed by the access network device described above, logic circuit 501 is used to obtain first indication information; interface 502 is used to output the first indication information and a first paging message. Alternatively, logic circuit 501 is used to obtain a first paging message, which includes the first indication information; interface 502 is used to output the first paging message. Alternatively, logic circuit 501 is used to obtain paging control information; interface 502 is used to output the paging control information and the first paging message, which includes the first indication information.

[0379] In this embodiment of the application, the descriptions of the first paging message, the first information, the first field, the second field, the second indication information, the third field, or the fourth field can be found in the descriptions in the above method embodiments, and will not be detailed here.

[0380] for Figure 5 For specific implementations of the various embodiments shown, please refer to the above embodiments, which will not be described in detail here.

[0381] This application also provides a wireless communication system, which includes a terminal device and an access network device. The terminal device and the access network device can be used to perform the methods in any of the foregoing embodiments.

[0382] This application also provides a wireless communication system, which includes an access network device and a core network device, and the access network device and the core network device can be used to perform the methods in any of the foregoing embodiments.

[0383] This application also provides a wireless communication system, which includes a terminal device, an access network device, and a core network device. The terminal device, access network device, and core network device can be used to perform the methods in any of the foregoing embodiments.

[0384] In addition, this application also provides a computer program for implementing the operations and / or processes performed by a terminal device in the method provided in this application.

[0385] This application also provides a computer program for implementing the operations and / or processes performed by the access network device in the method provided in this application.

[0386] This application also provides a computer-readable storage medium storing computer code that, when executed on a computer, causes the computer to perform the operations and / or processes performed by a terminal device in the method provided in this application.

[0387] This application also provides a computer-readable storage medium storing computer code that, when executed on a computer, causes the computer to perform the operations and / or processes performed by the access network device in the method provided in this application.

[0388] This application also provides a computer program product, which includes computer code or a computer program that, when run on a computer, causes the operations and / or processes performed by a terminal device in the method provided in this application to be executed.

[0389] This application also provides a computer program product, which includes computer code or a computer program that, when run on a computer, causes the operations and / or processes performed by the access network device in the method provided in this application to be executed.

[0390] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices, or units, or it may be an electrical, mechanical, or other form of connection.

[0391] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of this application.

[0392] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0393] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned readable storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0394] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A paging indication method, applied to a terminal device or a chip in the terminal device, characterized in that, The method includes: Obtain first indication information, which is used to indicate whether the core network equipment supports paging reason value; A first paging message is received, the first paging message including first information corresponding to the terminal device; wherein, if the first information does not include a first field for indicating the paging reason value, and the first indication information is used to indicate that the core network device supports the paging reason value, the paging reason initiated by the core network device is a non-voice service.

2. The method according to claim 1, characterized in that, If the first information does not include a first field for indicating the paging reason value, and the first indication information is used to indicate that the core network device does not support the paging reason value, then the paging reason value is not indicated.

3. The method according to claim 1 or 2, characterized in that, The first indication information is used to indicate whether the core network equipment corresponding to a Public Land Mobile Network (PLMN) supports the paging reason value; or, the first indication information is used to indicate whether the core network equipment corresponding to multiple PLMNs supports the paging reason value.

4. The method according to claim 1 or 2, characterized in that, The method further includes: Based on the first indication information, it is determined whether the core network equipment corresponding to the first public terrestrial mobile network (PLMN) supports the paging reason value, wherein the first PLMN is a PLMN serving the terminal equipment.

5. The method according to claim 1 or 2, characterized in that, The first information is the information corresponding to the terminal device in the extended paging message field.

6. The method according to claim 1 or 2, characterized in that, The method further includes: Obtain second indication information, which is used to indicate whether the access network device supports the paging reason value.

7. The method according to claim 6, characterized in that, When the second indication information is used to indicate that the access network device supports the paging reason value, the first paging message includes a second field for indicating the paging reason value; when the first information includes the first field, the first field is included in the second field.

8. The method according to claim 1 or 2, characterized in that, The first paging message also includes second information, which corresponds to a paging initiated by the access network device.

9. The method according to claim 1 or 2, characterized in that, The first indication information is contained in any of the following messages: Non-access stratum (NAS) messages, system information blocks (SIBs), the first paging message, or downlink control information (DCI) used to schedule the first paging message.

10. The method according to claim 9, characterized in that, The first indication information is carried in the third field. If the third field is not present, the first indication information is used to indicate that the core network device does not support the paging reason value. If the third field is present, the first indication information is used to indicate that the core network device supports the paging reason value.

11. The method according to claim 1 or 2, characterized in that, If the first information includes a first field indicating the paging reason value, the paging reason value is voice service.

12. A paging indication method, the method being applied to an access network device or a chip in the access network device, characterized in that, The method includes: Send a first indication message to the terminal device, wherein the first indication message is used to indicate whether the core network device supports paging reason value; A first paging message is sent to the terminal device, the first paging message including first information corresponding to the terminal device; wherein, if the first information does not include a first field for indicating the paging reason value, and the first indication information is used to indicate that the core network device supports the paging reason value, the paging reason initiated by the core network device is a non-voice service.

13. The method according to claim 12, characterized in that, The method further includes: The first indication information is obtained based on third indication information from the core network device, wherein the third indication information is used to indicate whether the core network device supports the paging reason value; or... The first instruction information is obtained from the Operation, Management and Maintenance (OAM) equipment; or... Receive a second paging message from the core network device, and obtain the first indication information based on the first field included in the second paging message.

14. The method according to claim 12 or 13, characterized in that, If the first information does not include a first field for indicating the paging reason value, and the first indication information is used to indicate that the core network device does not support the paging reason value, then the paging reason value is not indicated.

15. The method according to claim 12 or 13, characterized in that, The first indication information is used to indicate whether the core network equipment corresponding to a Public Land Mobile Network (PLMN) supports the paging reason value; or, the first indication information is used to indicate whether the core network equipment corresponding to multiple PLMNs supports the paging reason value.

16. The method according to claim 12 or 13, characterized in that, The first information is the information corresponding to the terminal device in the extended paging message field.

17. The method according to claim 12 or 13, characterized in that, The method further includes: Send a second indication message to the terminal device, the second indication message being used to indicate whether the access network device supports the paging reason value.

18. The method according to claim 17, characterized in that, When the second indication information is used to indicate that the access network device supports the paging reason value, the first paging message includes a second field for indicating the paging reason value; when the first information includes the first field, the first field is included in the second field.

19. The method according to claim 12 or 13, characterized in that, The first paging message also includes second information, which corresponds to a paging initiated by the access network device.

20. The method according to claim 12 or 13, characterized in that, The first indication information is contained in any of the following messages: Non-access stratum (NAS) messages, system information blocks (SIBs), the first paging message, or downlink control information (DCI) used to schedule the first paging message.

21. The method according to claim 20, characterized in that, The first indication information is carried in the third field. When the third field does not exist, the first indication information is used to indicate that the core network device does not support the paging reason value. When the third field exists, the first indication information is used to indicate that the core network device supports the paging reason value.

22. The method according to claim 12 or 13, characterized in that, If the first information includes a first field indicating the paging reason value, the paging reason value is voice service.

23. A communication device, characterized in that, Including processor and memory; The processor is used to store computer execution instructions; The processor is configured to execute the computer execution instructions to cause the method of any one of claims 1-11 to be executed; or, the processor is configured to execute the computer execution instructions to cause the method of any one of claims 12-22 to be executed.

24. A communication device, characterized in that, Includes logic circuits and interfaces, wherein the logic circuits and interfaces are coupled; The interface is used to input and / or output code instructions, and the logic circuit is used to execute the code instructions to cause the method of any one of claims 1-11 to be executed; or, the logic circuit is used to execute the code instructions to cause the method of any one of claims 12-22 to be executed.

25. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program that, when executed, performs the method according to any one of claims 1-11; or, when executed, performs the method according to any one of claims 12-22.

26. A communication device, characterized in that, It includes a corresponding unit for performing the method according to any one of claims 1-11 or the method according to any one of claims 12-22.

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