Paging method, apparatus, and system

Abstract

Embodiments of the present application relate to technical field of communications, and disclosed are a paging method, apparatus and system, for solving the problem of high power consumption of a terminal device in a paging process. The method comprises: acquiring a first paging message, wherein the first paging message comprises a first bit sequence in a second paging message, the second paging message comprises the first bit sequence and a second bit sequence, the first bit sequence is used for carrying a first-type terminal device identifier, and the first bit sequence and the second bit sequence are used for jointly carrying a second-type terminal device identifier; and demodulating the first bit sequence in the first paging message to obtain the first-type terminal device identifier. The embodiments of the present application are applied to the paging process of a terminal device.

Description

Paging method, device and system

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on October 31, 2023, with application number 202311443374.6 and application name “Paging Method, Device and System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the field of communication technologies, and in particular to a paging method, device, and system. Background Art

[0003] Currently, low-power terminal devices consume a lot of power when demodulating paging messages during paging, which affects the working time of low-power terminal devices. Therefore, how to reduce the power consumption of terminal devices during paging is a technical problem that needs to be solved.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a paging method, apparatus, and system, which can reduce the power consumption of a terminal device during the paging process.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] In a first aspect, a paging method is provided, which can be executed by a first terminal device, or by a component of the first terminal device, such as a processor, chip, or chip system of the first terminal device, or by a logic module or software that can implement all or part of the first terminal device. The following is an illustration of the method being executed by the first terminal device. The paging method includes: obtaining a first paging message, the first paging message including a first bit sequence in a second paging message, the second paging message including a first bit sequence and a second bit sequence, wherein the first bit sequence is used to carry a first type of terminal device identifier, and the first bit sequence and the second bit sequence are used to jointly carry a second type of terminal device identifier; demodulating the first bit sequence in the first paging message to obtain the first type of terminal device identifier.

[0008] In an embodiment of the present application, the first paging message and the second paging message respectively carry different types of terminal device identifiers, and the first paging message includes a partial bit sequence of the second paging message. During the paging process, the terminal device demodulates the first bit sequence from the first paging message to obtain the first type of terminal device identifier, so that the terminal device can obtain the terminal device identifier paged by the paging message while demodulating fewer bits. Therefore, the terminal device demodulates fewer bits during the paging process, and the power consumption required for the terminal device demodulation is also less, thereby reducing the power consumption of the terminal device during the paging process.

[0009] In combination with the above-mentioned first aspect, in one possible implementation method, the first paging message is a paging message obtained by the access network device after intercepting the first bit sequence from the second paging message; or, the first paging message is a paging message obtained by the core network device after intercepting the first bit sequence from the second paging message; or, the first paging message is a paging message selected by the access network device from the first paging message and the second paging message sent by the core network device.

[0010] Based on this, the access network device or the core network device can intercept the first bit sequence from the second paging message to obtain the first paging message. Alternatively, the access network device selects the first paging message from the first paging message and the second paging message sent by the core network device. In this way, different entities can intercept the first paging message from the second paging message in different scenarios.

[0011] In combination with the first aspect above, in a possible implementation, obtaining the first paging message includes: receiving the first paging message; or receiving the second paging message and intercepting a first bit sequence from the second paging message to obtain the first paging message.

[0012] Based on this, the terminal device can directly demodulate after receiving the first paging message, or intercept the first paging message from the second paging message for demodulation after receiving the second paging message, thereby reducing the number of bits required for demodulation of the paging message by the first terminal device.

[0013] In combination with the above-mentioned first aspect, in a possible implementation method, intercepting a first bit sequence from a second paging message to obtain a first paging message includes: receiving first indication information, the first indication information is used to indicate at least one of the following: the position and quantity of the first bit sequence in the second paging message, and determining a first preset rule for the first bit sequence; based on the first indication information, intercepting the first bit sequence from the second paging message to obtain the first paging message.

[0014] Based on this, the terminal device can determine the position and quantity of the first bit sequence in the second paging message according to the received first indication information, and then intercept the first bit sequence from the second paging message.

[0015] In combination with the first aspect above, in a possible implementation, intercepting a first bit sequence from the second paging message to obtain the first paging message includes: based on a first preset rule, intercepting the first bit sequence from the second paging message to obtain the first paging message.

[0016] Based on this, the terminal device can directly intercept the first bit sequence from the second paging message according to the preconfigured first preset rule.

[0017] In combination with the above-mentioned first aspect, in a possible implementation method, the first preset rule includes at least one of the following: calculating the position and quantity of the first bit sequence in the second paging message according to a preset calculation method, and querying the position and quantity of the first bit sequence in the second paging message according to a preset record table; wherein the preset record table is used to record the position and quantity of the first bit sequence in the second paging message.

[0018] Based on this, the terminal device can determine the position and quantity of the first bit sequence in the second paging message based on different rules, thereby improving the applicable scenarios in which the terminal device intercepts the first bit sequence from the second paging message.

[0019] In combination with the above-mentioned first aspect, in one possible implementation, the first bit sequence includes N bits from high to low in the bit positions of the second paging message; N is a positive integer; or, the first bit sequence includes N bits from low to high in the bit positions of the second paging message; or, the first bit sequence includes bits at N preset positions of the second paging message.

[0020] Based on this, the first bit sequence can be arranged in the second paging message using different rules according to specific application scenarios, and the terminal device can intercept the first bit sequence according to the arrangement of the first bit sequence in the second paging message.

[0021] In combination with the above-mentioned first aspect, in a possible implementation manner, the method further includes: receiving second indication information, where the second indication information is used to indicate the type of the paging message; the type of the paging message includes: a first paging message or a second paging message.

[0022] Based on this, the access network device indicates the type of paging message to the terminal device. After determining the type of paging message, the terminal device can demodulate the paging message in a manner corresponding to that type, thereby avoiding the terminal device demodulating the paging message in an incorrect manner after receiving the paging message, resulting in unsuccessful demodulation.

[0023] In combination with the above-mentioned first aspect, in a possible implementation manner, the first type terminal device identifier or the second type terminal device identifier includes: an identifier of the terminal device or an identifier of a terminal device group.

[0024] Based on this, the paging message can carry the terminal device identifier so that the paging message directly pages a specific terminal device, or the paging message can carry the terminal device group identifier so that the paging message can page the terminal devices in the entire terminal device group.

[0025] In combination with the above-mentioned first aspect, in a possible implementation method, the first paging message also includes an identifier of the access and mobility management network element, wherein the identifier of the access and mobility management network element is carried in a third bit sequence in the first paging message; the method also includes: when the access network device type is a first type of access network device, demodulating the third bit sequence in the first paging message to obtain the identifier of the access and mobility management network element included in the first paging message; when the access network device type is a second type of access network device, not demodulating the third bit sequence in the first paging message.

[0026] Based on this, the first paging message may also carry the identifier of the access and mobility management network element. The terminal device may choose whether to demodulate the identifier of the access and mobility management network element in the first paging message according to the access network type. In the case where the terminal device demodulates the identifier of the access and mobility management network element in the first paging message, the terminal device may demodulate the terminal device identifier more accurately. In the case where the terminal device does not demodulate the identifier of the access and mobility management network element in the first paging message, the number of bits used by the terminal device to demodulate the paging message may be reduced, further reducing the power consumption of the terminal device during the paging process.

[0027] In combination with the above first aspect, in a possible implementation manner, the first type of access network device is a shared access network device, and the second type of access network device is a non-shared access network device.

[0028] Based on this, when the access network device is a shared access network device, one cell may correspond to multiple access and mobility management network element identifiers. At this time, if the terminal device does not demodulate the access and mobility management network element identifier in the first paging message, it may cause the terminal device with different access and mobility management network element identifiers but the same terminal device identifier to wake up, resulting in a false alarm. Therefore, when the access network device is a shared access network device, the terminal device demodulates the access and mobility management network element identifier in the first paging message, so that the terminal device can accurately determine the terminal device paged by the paging message, avoiding false alarms.

[0029] In the case where the access network device is a non-shared access network device, one cell corresponds to the identifier of one access and mobility management network element. In this case, the identifiers of the access and mobility management network elements in the paging message sent by the access network device are the same. In this case, even if the terminal device only demodulates the terminal device identifier, it can correctly determine the terminal device being paged by the paging message. Therefore, when the access network device is a non-shared access network device, the terminal device may not demodulate the identifier of the access and mobility management network element in the first paging message, thereby reducing the number of bits used by the terminal device to demodulate the paging message and further reducing the power consumption of the terminal device during the paging process.

[0030] In a second aspect, a paging method is provided. The method can be executed by a first terminal device, or by a component of the first terminal device, such as a processor, chip, or chip system of the first terminal device, or by a logic module or software that can implement all or part of the first terminal device. The following description takes the execution of the method by the first terminal device as an example. The paging method includes: receiving a third paging message, the third paging message including multiple bit partitions; each bit partition of the multiple bit partitions is used to carry a first type of terminal device identifier; and demodulating one or more bit partitions of the multiple bit partitions to obtain the first type of terminal device identifier carried by the one or more bit partitions.

[0031] In this embodiment of the present application, each bit partition in the third paging message carries a first type terminal device identifier. When demodulating the third paging message, the terminal device only needs to demodulate the first type terminal device identifier carried by one or more bit partitions among the multiple bit partitions. During the demodulation process, the terminal device demodulates fewer bits, and the power consumption required for demodulation by the terminal device is reduced, thereby reducing the power consumption of the terminal device during the paging process.

[0032] In combination with the above-mentioned second aspect, in a possible implementation method, it also includes: receiving third indication information, the third indication information is used to indicate the bit partition to be demodulated; demodulating one or more bit partitions of multiple bit partitions, and obtaining the first type of terminal device identification carried by one or more bit partitions, including: demodulating the bit partition to be demodulated indicated by the third indication information, and determining the first type of terminal device identification carried by the bit partition to be demodulated.

[0033] Based on this, the terminal device only demodulates the bit partition indicated by the third indication information, which can further reduce the number of bits demodulated by the terminal device during the demodulation process, thereby further reducing the power consumption of the terminal device during the paging process.

[0034] In combination with the above second aspect, in a possible implementation manner, the first type of terminal device identifier includes an identifier of a terminal device or an identifier of a terminal device group.

[0035] Based on this, the paging message can carry the terminal device identifier so that the paging message directly pages a specific terminal device, or the paging message can carry the terminal device group identifier so that the paging message can page the terminal devices in the entire terminal device group.

[0036] In combination with the above-mentioned second aspect, in a possible implementation, the method is applied to a first terminal device; the first type of terminal device identifier includes the identifier of the first terminal device; the bit partition to be demodulated is the first bit partition to which the identifier of the first terminal device belongs in the third paging message; or, the first type of terminal device identifier includes the identifier of the terminal device group to which the first terminal device belongs; the bit partition to be demodulated is the first bit partition to which the identifier of the terminal device group to which the first terminal device belongs in the third paging message.

[0037] Based on this, the third paging message may page the first terminal device through the identifier of the terminal device, or may page the first terminal device through the identifier of the terminal device group.

[0038] In combination with the above-mentioned second aspect, in a possible implementation method, one or more bit partitions of multiple bit partitions are demodulated to obtain the first type of terminal device identifier carried by one or more bit partitions, including: demodulating multiple bit partitions in the third paging message in sequence based on the second preset rule until the first bit partition including the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs is demodulated, and then obtaining the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs from the first bit partition.

[0039] Based on this, the terminal device can demodulate the bit partition in the third paging message based on the preconfigured preset rules until it demodulates the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs, and stops demodulating to determine that this terminal device is the terminal device paged by the paging message.

[0040] In addition, if the terminal device fails to demodulate the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs after demodulating multiple bit partitions of the third paging message, it is determined that the terminal device is not the terminal device paged by the paging message.

[0041] In combination with the above-mentioned second aspect, in a possible implementation method, the second preset rule includes at least one of the following: demodulating in sequence from large to small according to the bit partition index value, demodulating in sequence from small to large according to the bit partition index value, and demodulating in sequence starting from the specified bit position.

[0042] Based on this, the terminal device can determine the demodulation order of the demodulation bit partitions based on different rules, thereby improving the applicable scenarios of the terminal device demodulating the bit partitions of the third paging message.

[0043] In combination with the above-mentioned second aspect, in a possible implementation, the method also includes: receiving fourth indication information, the fourth indication information is used to indicate the type of paging message; the type of paging message includes: a third paging message or a fourth paging message; the fourth paging message is used to carry the second type of terminal device identification.

[0044] Based on this, the access network device indicates the type of paging message to the terminal device. After determining the type of paging message, the terminal device can demodulate the paging message in a manner corresponding to that type, thereby avoiding the terminal device demodulating the paging message in an incorrect manner after receiving the paging message, resulting in unsuccessful demodulation.

[0045] In combination with the above-mentioned second aspect, in a possible implementation method, the third paging message also includes an identifier of the access and mobility management network element; the identifier of the access and mobility management network element is carried by the fourth bit sequence of the third paging message; the method also includes: when the access network device type is a first type of access network device, demodulating the fourth bit sequence of the third paging message to obtain the identifier of the access and mobility management network element included in the third paging message; when the access network device type is a second type of access network device, not demodulating the fourth bit sequence of the third paging message.

[0046] Based on this, the first paging message may also carry the identifier of the access and mobility management network element. The terminal device may choose whether to demodulate the identifier of the access and mobility management network element in the third paging message according to the access network type. In the case where the terminal device demodulates the identifier of the access and mobility management network element in the third paging message, the terminal device may demodulate the terminal device identifier more accurately. In the case where the terminal device does not demodulate the identifier of the access and mobility management network element in the third paging message, the number of bits used by the terminal device to demodulate the paging message may be reduced, further reducing the power consumption of the terminal device during the paging process.

[0047] In combination with the above second aspect, in a possible implementation manner, the first type of access network device is a shared access network device, and the second type of access network device is a non-shared access network device.

[0048] On the third aspect, a paging method is provided, which can be executed by an access network device, or by a component of the access network device, such as a processor, chip, or chip system of the access network device, or by a logic module or software that can implement all or part of the access network device. The following is an illustration of the method being executed by an access network device. The paging method includes: sending a paging message; wherein the paging message is at least one of a first paging message, a second paging message, and a third paging message; the first paging message includes a first bit sequence in the second paging message, and the first bit sequence is used to carry a first type of terminal device identifier; the second paging message includes a first bit sequence and a second bit sequence; the first bit sequence and the second bit sequence are used to jointly carry a second type of terminal device identifier; the third paging message includes multiple bit partitions; each bit partition in the multiple bit partitions is used to carry a first type of terminal device identifier.

[0049] In an embodiment of the present application, the access network device may use multiple paging messages to page a terminal device, including a first paging message, a second paging message, and a third paging message. The access network device may flexibly select a paging message to page the terminal device. For example, the access network device may select a first paging message or a third paging message that carries a first type of terminal device identifier to page the terminal device, thereby reducing the number of bits required to demodulate the paging message when the terminal device demodulates the paging message. Alternatively, the access network device may also select a second paging message to page the terminal device, so that after receiving the paging message, the terminal device can intercept the first paging message from the second paging message for demodulation.

[0050] In combination with the third aspect above, in a possible implementation, the method further includes: receiving a paging message from a core network device.

[0051] Based on this, the access network device directly forwards the paging message sent by the core network device to the terminal device, which can reduce the load of the access network device when processing the paging message.

[0052] In combination with the third aspect above, in a possible implementation, when the paging message is a first paging message, the method further includes: receiving a second paging message from a core network device; and intercepting a first bit sequence from the second paging message to obtain the first paging message.

[0053] Based on this, the first paging message with fewer bits transmitted between the access network device and the terminal device can reduce the transmission resources occupied by the paging message between the base station and the UE, and the terminal device only needs to receive and demodulate the first paging message, which can further reduce the power consumption of the terminal device in obtaining the first paging message.

[0054] In combination with the above third aspect, in a possible implementation, when the paging message is a first paging message, the method further includes: receiving a first paging message and a second paging message from a core network device; and selecting the first paging message from the first paging message and the second paging message.

[0055] Based on this, the access network device can flexibly choose to send the first paging message or the second paging message based on the actual network scenario, making the paging method of the access network device more flexible.

[0056] In combination with the third aspect above, in a possible implementation, the first paging message further includes an identifier of an access and mobility management network element, wherein the identifier of the access and mobility management network element is carried in a third bit sequence in the first paging message.

[0057] In combination with the above third aspect, in a possible implementation, when the paging message is a second paging message, the method further includes: receiving a first paging message and a second paging message from a core network device; and selecting the second paging message from the first paging message and the second paging message.

[0058] Based on this, the access network device can flexibly choose to send the first paging message or the second paging message based on the actual network scenario, making the paging method of the access network device more flexible.

[0059] In combination with the above-mentioned third aspect, in a possible implementation method, when the paging message is a second paging message, the method also includes: sending first indication information, the first indication information is used to indicate at least one of the following: the position and quantity of the first bit sequence in the second paging message, and determining a first preset rule for the first bit sequence.

[0060] In combination with the above-mentioned third aspect, in a possible implementation method, the first preset rule includes at least one of the following: calculating the position and quantity of the first bit sequence in the second paging message according to a preset calculation method, and querying the position and quantity of the first bit sequence in the second paging message according to a preset record table; wherein the preset record table is used to record the position and quantity of the first bit sequence in the second paging message.

[0061] In combination with the above-mentioned third aspect, in one possible implementation, the first bit sequence includes N bits from high to low in the bit positions of the second paging message; N is a positive integer; or, the first bit sequence includes N bits from low to high in the bit positions of the second paging message; or, the first bit sequence includes bits at N preset positions of the second paging message.

[0062] In combination with the third aspect above, in a possible implementation, the method further includes: sending second indication information, where the second indication information is used to indicate the type of the paging message; the type of the paging message includes: a first paging message or a second paging message.

[0063] In combination with the third aspect above, in a possible implementation manner, the first type terminal device identifier or the second type terminal device identifier includes: an identifier of the terminal device or an identifier of a terminal device group.

[0064] In combination with the third aspect above, in a possible implementation, when the paging message is a third paging message, the method further includes: sending third indication information, where the third indication information is used to indicate a bit partition to be demodulated.

[0065] In combination with the third aspect above, in a possible implementation manner, the first type of terminal device identifier includes an identifier of a terminal device or an identifier of a terminal device group.

[0066] In combination with the above-mentioned third aspect, in a possible implementation method, the first type of terminal device identifier includes the identifier of the first terminal device; the bit partition to be demodulated is the first bit partition to which the identifier of the first terminal device belongs in the third paging message; or, the first type of terminal device identifier includes the identifier of the terminal device group to which the first terminal device belongs; the bit partition to be demodulated is the first bit partition to which the identifier of the terminal device group to which the first terminal device belongs in the third paging message.

[0067] In combination with the above-mentioned third aspect, in a possible implementation, the method also includes: sending fourth indication information, the fourth indication information is used to indicate the type of paging message; the type of paging message includes: third paging message or fourth paging message; the fourth paging message is used to carry the second type of terminal device identification.

[0068] In a fourth aspect, a communication device is provided for implementing the various methods described above. The communication device may be the terminal device described in the first aspect or any implementation of the first aspect, or a device including the terminal device described above, or a device included in the terminal device described above, such as a chip. Alternatively, the communication device may be the terminal device described in the second aspect or any implementation of the second aspect, or a device including the terminal device described above, or a device included in the terminal device described above, such as a chip. Alternatively, the communication device may be the access network device described in the third aspect or any implementation of the third aspect, or a device including the access network device described above, or a device included in the access network device described above, such as a chip. The communication device includes modules, units, or means corresponding to the implementation of the above methods, and the modules, units, or means may be implemented by hardware, software, or by executing corresponding software implementations through hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

[0069] In some possible designs, the communication device may include a processing module and a transceiver module. The transceiver module, also referred to as a transceiver unit, is configured to implement the transmitting and / or receiving functions described in any of the above aspects and any possible implementations thereof. The transceiver module may be comprised of a transceiver circuit, a transceiver, a transceiver, or a communication interface. The processing module may be configured to implement the processing functions described in any of the above aspects and any possible implementations thereof.

[0070] In some possible designs, the transceiver module includes a sending module and a receiving module, which are respectively used to implement the sending and receiving functions in any of the above aspects and any possible implementation methods.

[0071] In a fifth aspect, a communication device is provided, comprising: at least one processor; the processor is configured to execute a computer program or instruction stored in a memory, so that the communication device performs the method of any of the above aspects. The memory may be coupled to the processor, or may be independent of the processor. The communication device may be the terminal device of the above-mentioned first aspect, or any implementation of the first aspect, or a device including the above-mentioned terminal device, or a device included in the above-mentioned terminal device, such as a chip. Alternatively, the communication device may be the terminal device of the above-mentioned second aspect, or any implementation of the second aspect, or a device including the above-mentioned terminal device, or a device included in the above-mentioned terminal device, such as a chip. Alternatively, the communication device may be the access network device of the above-mentioned third aspect, or any implementation of the third aspect, or a device including the above-mentioned access network device, or a device included in the above-mentioned access network device, such as a chip.

[0072] In some possible designs, the communication device includes a memory for storing necessary program instructions and data.

[0073] In a possible implementation, the processor includes a logic circuit and an input interface and / or an output interface, wherein the output interface is used to perform the sending action in the corresponding method, and the input interface is used to perform the receiving action in the corresponding method.

[0074] In one possible implementation, the communication device further includes a communication interface and a communication bus, and the processor, memory, and communication interface are connected via the communication bus. The communication interface is used to perform the sending and receiving actions in the corresponding method. The communication interface may also be referred to as a transceiver. Optionally, the communication interface includes a transmitter and a receiver. In this case, the transmitter is used to perform the sending action in the corresponding method, and the receiver is used to perform the receiving action in the corresponding method.

[0075] In some possible designs, when the communication device is a chip system, it can be composed of a chip, or it can include a chip and other discrete devices.

[0076] It can be understood that when the communication device provided in any one of the fourth to fifth aspects is a chip, the above-mentioned sending action / function can be understood as output, and the above-mentioned receiving action / function can be understood as input.

[0077] In a sixth aspect, a computer-readable storage medium is provided, which stores a computer program or instruction. When the computer program or instruction is run on a communication device, the communication device can execute any of the above aspects or any of its implementation methods.

[0078] In a seventh aspect, a computer program product comprising instructions is provided, which, when executed on a communication device, enables the communication device to execute any of the above aspects or any of its implementation methods.

[0079] In an eighth aspect, a communication system is provided, which includes the terminal device in the above-mentioned first aspect, or any implementation of the first aspect, and the access network device in the above-mentioned third aspect, or any implementation of the third aspect; or, the communication system includes the terminal device in the above-mentioned second aspect, or any implementation of the second aspect, and the access network device in the above-mentioned third aspect, or any implementation of the third aspect.

[0080] The technical effects brought about by any implementation method of the fourth to eighth aspects can be referred to the technical effects brought about by the corresponding implementation method of the first or second aspect or the third aspect, and will not be repeated here.

[0081] It should be noted that various possible implementations of any of the above aspects can be combined under the premise that there is no contradiction between the solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] FIG1 is a schematic diagram of a process flow of a core network triggered paging process provided in an embodiment of the present application;

[0083] FIG2 is a schematic diagram of a system architecture of a fifth generation (5G) multi-operator core network (5G MOCN) provided in an embodiment of the present application;

[0084] FIG3 is a system architecture diagram of a communication system provided in an embodiment of the present application;

[0085] FIG4 is a schematic diagram of a flow chart of a paging method provided in an embodiment of the present application;

[0086] FIG5 is a flow chart of another paging method provided in an embodiment of the present application;

[0087] FIG6 is a flow chart of another paging method provided in an embodiment of the present application;

[0088] FIG7 is a flow chart of another paging method provided in an embodiment of the present application;

[0089] FIG8 is a schematic diagram of an arrangement of a first bit sequence in a second paging message provided by an embodiment of the present application;

[0090] FIG9 is a schematic diagram of a flow chart of another paging method provided in an embodiment of the present application;

[0091] FIG10 is a schematic diagram of a flow chart of another paging method provided in an embodiment of the present application;

[0092] 11 is a schematic diagram of the correspondence between bit partitions of a third paging message and a terminal device according to an embodiment of the present application;

[0093] FIG12 is a flow chart of another paging method provided in an embodiment of the present application;

[0094] FIG13 is a flow chart of another paging method provided in an embodiment of the present application;

[0095] FIG14 is a schematic diagram of the composition of a communication device provided in an embodiment of the present application;

[0096] FIG15 is a schematic diagram of the hardware structure of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0097] In the description of this application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0098] In the description of this application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and / or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0099] In addition, to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean different.

[0100] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0101] It will be understood that the “embodiment” mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It will be understood that in the various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0102] It can be understood that in this application, "when" and "if" both mean that corresponding processing will be taken under certain objective circumstances, and do not limit the time, nor do they require any judgment action when implementing it, nor do they mean that there are other limitations.

[0103] It is understood that some optional features in the embodiments of the present application may, in certain scenarios, be implemented independently of other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects. They may also be combined with other features in certain scenarios as needed. Accordingly, the devices provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described in detail here.

[0104] In this application, unless otherwise specified, the same or similar parts between the various embodiments can refer to each other. In the various embodiments in this application, and the various implementation methods / implementation methods / implementation methods in each embodiment, if there is no special explanation and logical conflict, the terms and / or descriptions between different embodiments and the various implementation methods / implementation methods / implementation methods in each embodiment are consistent and can be referenced to each other. The technical features in different embodiments and the various implementation methods / implementation methods / implementation methods in each embodiment can be combined to form new embodiments, implementation methods, implementation methods, or implementation methods according to their inherent logical relationships. The implementation methods of this application described below do not constitute a limitation on the scope of protection of this application.

[0105] The technical solutions provided in the embodiments of the present application can be used in various communication systems, which may be a third generation partnership project (3GPP) communication system, for example, a fourth generation (4G) long term evolution (LTE) system, a 5G new radio (NR) system, a sixth generation (6G) communication system, a vehicle to everything (V2X) system, a system of hybrid networking of LTE and NR, or a device to device (D2D) system, a machine to machine (M2M) communication system, an Internet of Things (IoT), and other next generation communication systems. Alternatively, the communication system may also be a non-3GPP communication system, without limitation.

[0106] Among them, the above-mentioned communication system applicable to the present application is only an example, and the communication system applicable to the present application is not limited to this. It is uniformly described here and will not be repeated below.

[0107] The terminal device involved in the present application can be a user equipment (UE), an access terminal, a terminal unit, a user station, a terminal station, a mobile station, a mobile station, a mobile station, a remote station, a remote terminal, a user terminal terminal equipment, a mobile device, a wireless communication device, a terminal agent, a tablet computer (pad), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a vehicle-mounted transceiver unit, a wearable device, or a terminal device. The access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a drone, a robot, an intelligent point of sale (POS) machine, a customer-premises equipment (CPE) or a wearable device, a virtual reality (VR) device. The terminal device may be a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, or a wireless terminal in smart home. Alternatively, the terminal device may be a terminal with communication capabilities in the Internet of Things (IoT), such as a terminal in V2X (e.g., a vehicle-to-everything (V2X) device), a terminal in D2D communication, or a terminal in M2M communication. The terminal device may be mobile or fixed.

[0108] The embodiments of this application do not limit the form of the terminal device. The device used to implement the functions of the terminal device can be the terminal device; it can also be a device that supports the terminal device to implement the functions, such as a chip system. The device can be installed in the terminal device or used in conjunction with the terminal device. In the embodiments of this application, the chip system can be composed of a chip or include a chip and other discrete devices.

[0109] The access network device involved in the present application may be a device for communicating with a terminal device, for example, it may include an evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in a long term evolution (LTE) system or an enhanced LTE (LTE-advanced, LTE-A) system, such as a traditional macro base station eNB and a micro base station eNB in ​​a heterogeneous network scenario. Alternatively, it may include a next generation node B (gNB) in an NR system. Alternatively, it may include a transmission reception point (TRP), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a base band unit (BBU), a base band pool (BBU pool), or a wireless fidelity (WiFi) access point (AP), etc. Alternatively, it may include a base station in a non-terrestrial network (NTN), which can be deployed on an aircraft or satellite. In an NTN, the access network device can function as a Layer 1 (L1) relay, a base station, or an integrated access and backhaul (IAB) node. Alternatively, the access network device can be a device that implements base station functions in the IoT, such as drone communications, V2X, D2D, or machine-to-machine (M2M) devices.

[0110] In some possible scenarios, the access network device may also be a module or unit that can implement some of the functions of the base station. For example, the access network device may be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be configured separately or included in the same network element, such as a baseband unit (BBU). The RU may be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0111] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the access network device may be an access network device or a module of an access network device in an open radio access network (open RAN, ORAN) system. In the ORAN system, CU may also be referred to as open (open, O)-CU, DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, CU-UP may also be referred to as O-CU-UP, and RU may also be referred to as O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0112] Optionally, the base station in the embodiment of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, home base stations, TRPs, transmitting points (TPs), mobile switching centers, etc., and the embodiments of the present application do not make specific limitations on this.

[0113] In the embodiments of the present application, the form of the access network device is not limited. The device used to implement the functions of the access network device can be the access network device; it can also be a device that supports the access network device to implement the functions, such as a chip system. The device can be installed in the access network device or used in conjunction with the access network device.

[0114] To facilitate understanding of the technical solutions provided by the embodiments of this application, a brief introduction to the relevant technologies of this application is first given. The brief introduction is as follows:

[0115] 1. Discontinuous reception (DRX) mode

[0116] DRX mode is a signal reception mode adopted by terminal devices to reduce power consumption. Terminal devices can decide whether to use DRX mode for signal reception based on the configuration of the access network device. When a terminal device uses DRX mode for signal reception, it turns on the receiver to receive downlink data and signaling during specific time periods and turns off the receiver and stops receiving downlink data and signaling during other time periods. After turning off the receiver, the terminal device does not need to continuously monitor the physical downlink control channel (PDCCH), thereby reducing the terminal device's power consumption. DRX mode can be applied in the radio resource control (RRC) connected state, the RRC inactive state, or the RRC idle state. In addition, DRX mode can be extended to the extended discontinuous reception (eDRX) mode, which has a longer cycle, allows the terminal device to sleep longer, and reduces power consumption. However, the longer eDRX cycle results in a longer period for the terminal device to receive new data and signaling. Therefore, eDRX mode is generally suitable for service scenarios with lower latency requirements.

[0117] 2. Paging message

[0118] In one implementation of DRX mode, the network wakes up the terminal device via a paging message. This paging message is used to trigger the terminal device to establish an RRC connection or notify the terminal device of system information updates. The paging message is typically sent to the terminal device via the physical downlink shared channel (PDSCH), which is typically scheduled using the PDCCH scrambled by the paging radio network temporary identifier (P-RNTI).

[0119] The process of the terminal device obtaining the paging message is as follows: the terminal device in the idle state or inactive state is periodically awakened, and after the terminal device is awakened, the PDCCH encrypted by the P-RNTI is monitored through the paging opportunity (Paging Occasion, PO), and the downlink control information (downlink control information, DCI) in the PDCCH is parsed to determine the position (for example, time-frequency position) information of the PDSCH. The terminal device receives the PDSCH according to the position information of the PDSCH, and obtains the paging message in the PDSCH. Furthermore, the terminal device determines whether the paging message includes its own terminal device identity. If so, the terminal device performs corresponding operations (for example, triggering the RRC link establishment process (RRC setup) of the terminal device; triggering the RRC resumption (RRC resume) of the terminal device; notifying the terminal device to update the system message or receive ETWS / CMAS notifications).

[0120] A terminal device in an RRC connected state can determine whether the current system information has changed by decoding a paging message. When the terminal device detects a change in the system information, it obtains the updated system information for update. In addition to determining whether the system information has changed, a terminal device in an RRC idle state can also determine whether the terminal device is called. If the terminal device is called, a random access process is triggered. In addition, the terminal device can also receive earthquake and tsunami warning system (ETWS) (corresponding to system information block (SIB) 6 and SIB7) and commercial mobile alert service (CMAS) information through paging messages.

[0121] The paging process in the 5G network includes the paging process triggered by the core network and the paging process triggered by the access network.

[0122] First, the core network triggered paging process is introduced: Figure 1 is a flowchart of a core network triggered paging process provided by an embodiment of the present application when the access network device adopts a CU-DU architecture. As shown in Figure 1, the core network triggered paging process includes the following steps S101-S104.

[0123] S101. A core network device sends a paging message to a gNB-central unit (gNB-CU). In response, the gNB-CU receives the paging message from the core network device.

[0124] As an example, the core network device sends a paging message to the gNB-CU via the NG interface, which is the interface between the base station and the core network.

[0125] In another example, the core network device in this step is an access and mobility management function (AMF).

[0126] In one possible implementation, the core network device sends a paging message to the gNB-CU that includes paging messages for one or more terminal devices in the tracking area. The terminal devices are distinguished by a shortened 5G temporary mobile subscription identifier (5G-S-TMSI). A detailed description of the 5G-S-TMSI is provided below and is not repeated here.

[0127] S102: The gNB-CU forwards the paging message to the gNB-distributed unit (gNB-DU). In response, the gNB-DU receives the paging message from the gNB-CU.

[0128] As an example, the gNB-CU forwards the paging message to the gNB-DU via the F1 interface. The F1 interface is the interface between the gNB-CU and the gNB-DU.

[0129] S103. The gNB-DU sends a paging message to the terminal device. In response, the terminal device receives the paging message from the gNB-DU.

[0130] In one possible implementation, the gNB-DU broadcasts a paging message. After receiving the paging message, the terminal device demodulates the paging message to determine whether it is the intended terminal device. If it is the intended terminal device, the terminal device performs relevant operations. For example, the terminal device performs the following step of sending an RRC Setup Request message to the gNB-CU in S104.

[0131] In one example, during the attach or tracking area updating (TAU) process, the terminal device negotiates the paging cycle of the terminal device with the core network device (such as AMF). When the base station forwards the paging message to the terminal device, it sends the paging message based on the paging cycle pre-negotiated between the terminal device and the core network device. The terminal device monitors the paging message sent by the base station during the paging cycle and demodulates the received paging message after receiving the paging message.

[0132] The process of pre-negotiating a paging cycle between a terminal device and a core network device includes: the terminal device carries a paging cycle in a registration request message. After receiving the registration request message, the core network device indicates a paging cycle to the terminal device in a registration acceptance message. The paging cycle indicated by the core network device to the terminal device may be the same as the paging cycle requested by the terminal device, or may be different from the paging cycle requested by the terminal device. This embodiment of the present application does not specifically limit this.

[0133] S104. The UE sends an RRC Setup Request message to the gNB-DU. In response, the gNB-DU receives the RRC Setup Request message from the UE.

[0134] In one example, the RRC establishment request message is: RRCSetupRequest.

[0135] It should be noted that when the terminal device determines that the terminal device is the terminal device paged by the paging message, the terminal device may also perform other actions. For example, triggering the terminal device RRC resume (RRC resume); notifying the terminal device to update system messages or receive ETWS / CMAS notifications, which is not limited in this application.

[0136] Secondly, the paging process triggered by the access network device is introduced: in the paging process triggered by the access network device, after the access network device generates a paging message, it sends a paging message to the terminal device. After receiving the paging message, the terminal device demodulates the paging message to determine whether the terminal device is paged. In the case that the terminal device is paged, the terminal device performs relevant operations, which can be specifically referred to S103 and S104 above, and will not be repeated here. It should be pointed out that the access network device can send a paging message to the terminal device through RRC signaling configuration, and the paging message includes one or more terminal device identifiers, and the terminal device identifier can be 5G-S-TMSI (or NG-5G-S-TMSI).

[0137] The above describes the paging process triggered by the core network and the paging process triggered by the access network.

[0138] The paging moment in the paging cycle (that is, the moment when the terminal device detects the paging message) can be identified by the paging frame (PF) and the paging occasion (PO). PF is used to indicate the system frame number of the paging frame for sending the paging message, and PO is used to indicate the subframe occasion for sending the paging message. A PF is a radio frame. A PF usually includes one or more POs (or the starting point of a PO). The terminal device only monitors the PO corresponding to the terminal device within a paging cycle. PO is a collection of one or more PDCCH monitoring occasions. A PO includes one or more time slots (for example, subframes or orthogonal frequency-division multiplexing (OFDM) symbols). The access network device sends PDCCH in the time slot included in the PO.

[0139] In one example, the calculation formula of the system frame number of PF satisfies the following formula 1: (SFN+PF_offset) mod T=(T div M)*(UE_ID mod N) Formula 1

[0140] Among them, SFN is the system frame number, PF_offset represents the offset for determining the system frame number, T identifies the DRX cycle or paging cycle of the terminal device, N represents the total number of paging frames in the DRX cycle or paging cycle, and UE_ID is the identifier of the terminal device.

[0141] The calculation formula of the PO index i_s satisfies the following formula 2: i_s = floor (UE_ID / M) mod Ns Formula 2

[0142] Where Ns represents the number of POs in each PF.

[0143] 3. 5G-S-TMSI

[0144] The 5G-S-TMSI is typically used in paging messages to uniquely identify a terminal device. For example, the identity of the terminal device being paged by the paging message is carried in the 5G-S-TMSI of the information element (IE) PagingUE-Identity in the RRC signaling. The terminal device identity carried by the 5G-S-TMSI is determined by the core network and each terminal device identity is unique within a tracking area.

[0145] 5G-S-TMSI contains a total of 48 bits, of which 16 bits are used to identify the AMF to which the terminal device accesses, and the remaining 32 bits are 5G-TMSI. 5G-TMSI is used to identify the terminal device accessed in the AMF. Of the 16 bits used to identify the AMF, 10 bits identify the AMF set ID and 6 bits identify the AMF Pointer. In the 32-bit 5G-TMSI used to represent the terminal device, each terminal device accessing the same AMF has a unique 5G temporary mobile subscription identifier (5G temporary mobile subscription identifier, 5G-TMSI). That is, in the terminal devices accessing the same AMF, one 5G-TMSI is used to uniquely identify one terminal device. In the 5G-S-TMSI, by setting the value of 48 bits, the 5G-S-TMSI can be distinguished between 2 48 A terminal device.

[0146] It should be noted that the 5G-S-TMSI field can identify a terminal device (UE) or a terminal device group (UE Group). When the S-TMSI field in a paging message identifies a terminal device, the paging message can wake up a single terminal device. When the S-TMSI field in a paging message identifies a terminal device group, the paging message can wake up terminal devices in a terminal device group.

[0147] In one example, the 5G-S-TMSI specifically includes the following:

[0148] 4. Low power wake up receiver (LP-WUR) and low power wake up signal (LP-WUS)

[0149] The LP-WUR receiver is designed to reduce power consumption. Its modules are simpler. For example, unlike the NR receiver's two main components, the RF and baseband, the LP-WUR typically omits the baseband, retaining only the RF. Alternatively, while retaining the RF, the LP-WUR receiver adds a computing module to perform basic operations (such as addition, subtraction, multiplication, and division). This significantly reduces the LP-WUR's power consumption by eliminating the power-hungry baseband.

[0150] The low power wake-up signal (LP-WUS) is designed for the LP-WUR. The LP-WUR does not need to perform baseband processing and complex demodulation (or does not need demodulation) when receiving the LP-WUS.

[0151] Currently, the waveform design of LP-WUS includes the following methods:

[0152] Method 1, on-off keying (OOK), uses different bit values ​​to indicate whether a signal is being transmitted. For example, a bit value of 0 indicates that the access network device does not send any signal to the terminal device, and the terminal device does not need to detect signals from the access network device at the corresponding time domain location. A bit value of 1 indicates that the access network device is sending a signal to the terminal device. The terminal device demodulates the waveform according to the pre-configured modulation method to determine whether the base station is scheduling the terminal device.

[0153] Mode 2, Frequency Shift Keying (FSK), uses different bit values ​​to represent signals transmitted in different frequency domains. For example, with a signal bandwidth of 12 RB and a frequency domain divided into four parts (Part #1, Part #2, Part #3, and Part #4), a bit value of 00 indicates that the LP-WUS signal is transmitted in Part #1, and the terminal device only needs to perform signal detection in Part #1. A bit value of 01 indicates that the LP-WUS signal is transmitted in Part #2, and the terminal device only needs to perform signal detection in Part #2. A bit value of 10 indicates that the LP-WUS signal is transmitted in Part #3, and the terminal device only needs to perform signal detection in Part #3. A bit value of 11 indicates that the LP-WUS signal is transmitted in Part #4, and the terminal device only needs to perform signal detection in Part #4.

[0154] Method 3, based on OFDM, refers to carrying different bit values ​​through different sequences. In some implementations, different sequences represent different bit streams. For example, a paging message contains 10 bits, and different bit values ​​of the 10 bits of the paging message represent different terminal device identifiers. In this case, a 10-bit paging message corresponds to 2 10 Different bit sequences, 2 10 Different bit sequences can distinguish 2 10 The identifier of a terminal device. In some other implementations, different sequences are used to carry different bit values ​​within a symbol. For example, a symbol includes two bits, and when the two bits within the symbol take different values, four bit sequences may correspond. For example, four Zadoff-Chu (zc) sequences are used, and these four zc sequences use the same root but have different cyclic shifts. For example, the roots of the four sequences are all 1, the cyclic shift of sequence #1 is 5, and the bit value represented is 00; the cyclic shift of sequence #2 is 12, and the bit value represented is 01; the cyclic shift of sequence #3 is 24, and the bit value represented is 10; the cyclic shift of sequence #4 is 35, and the bit value represented is 11.

[0155] 5. Network Sharing

[0156] Network sharing refers to the sharing of a single network's resources among multiple operators. Each operator allocates shared resources through a pre-agreed plan. Network sharing can reduce network costs, effectively utilize network capacity, and improve network resource utilization. Currently, shared networks include radio access networks, and shared resources include radio resources.

[0157] The network architecture of 5G network sharing includes 5G MOCN, in which operators only share the access network. Figure 2 is a schematic diagram of the system architecture of 5G MOCN provided by an embodiment of the present application. As shown in Figure 2, the core networks of multiple operators (including operator A, operator B, and operator C) access the shared access network (such as shared NG-RAN), and the core network and access network can communicate through the N2 and / or N3 interface.

[0158] In the 5G MOCN network, operators can use multiple public land mobile network (PLMN) IDs or a combination of PLMN ID and network identifier (NID). The network management system can configure the same cell under the 5G standalone (SA) shared base station as multiple PLMN-IdentityInfo objects. Each PLMN-IdentityInfo object corresponds to an operator, and the PLMN-IdentityInfo object includes the corresponding operator's PLMN ID, tracking area code (TAC), gNodeB ID, Cell ID and other fields.

[0159] It should be noted that multiple PLMN-IdentityInfo objects in the same cell can be configured as identical or completely different PLMN-IdentityInfo objects. Configuring multiple PLMN-IdentityInfo objects in the same cell as completely different PLMN-IdentityInfo objects allows a base station to be configured with different logical gNB-IDs and Cell-IDs for use by different operators. The parameters associated with each logical gNB-ID and Cell-ID are independent and do not affect each other. This prevents gNB-ID and Cell-ID conflicts between operators and allows operators to independently optimize parameter configurations based on their needs.

[0160] The above is a brief introduction to the related technologies of this application.

[0161] Currently, the power consumption of terminal devices significantly impacts the user experience. For example, in scenarios where a terminal device lacks continuous power, it must rely on batteries (such as small rechargeable batteries and single-coin batteries) for energy. Due to the device's size, the battery capacity is typically limited. Once the battery is depleted, it must be recharged or replaced to continue normal use.

[0162] In order to reduce the power consumption of terminal devices, it is currently possible to reasonably set the wake-up cycle of the terminal device to reduce the wake-up time of the terminal device without affecting the normal operation of the terminal device, thereby reducing the power consumption of the terminal device (for details, please refer to the introduction of the above DRX mode and paging message).

[0163] However, during the paging process, low-power terminal devices also consume a lot of power when demodulating paging messages, which affects the working time of low-power terminal devices. Therefore, how to reduce the power consumption of terminal devices during the paging process is a technical problem that needs to be solved.

[0164] To solve the above technical problems, an embodiment of the present application provides a paging method. During the paging process, the terminal device demodulates a first bit sequence from a first paging message to obtain a first type of terminal device identifier. Since the first paging message and the second paging message respectively carry different types of terminal device identifiers, and the first paging message includes a partial bit sequence of the second paging message, the terminal device can obtain the terminal device identifier paged by the paging message while demodulating fewer bits. The terminal device demodulates fewer bits during the paging process, and the power consumption required for demodulation by the terminal device is also less, thereby reducing the power consumption of the terminal device during the paging process.

[0165] The paging method provided in the embodiment of the present application can be applied to a communication system 30 as shown in FIG3 . As shown in FIG3 , the paging system includes: an access network device 301 and at least one terminal device 302 .

[0166] Among them, the access network device 301 is used to send (such as broadcasting) a paging message to the terminal device 302. After receiving the paging message from the access network device, the terminal device 302 demodulates the bits in the paging message and determines the identifier of the terminal device paged by the paging message. In the case where it is determined that the terminal device is the terminal device paged by the paging message, the terminal device performs corresponding actions based on the content of the paging message (refer to the description in the above-mentioned related technology, which will not be repeated here). In the case where it is determined that the terminal device is not the terminal device paged by the paging message, the terminal device enters a dormant state.

[0167] Optionally, the communication system shown in Figure 3 may further include a core network device 303. The paging message forwarding process may include: the core network device 303 generates a paging message and sends the paging message to the access network device 301; after receiving the paging message, the access network device 301 sends the paging message to the terminal device 302. Alternatively, the core network device 301 may directly generate the paging message and send the paging message to the terminal device 302.

[0168] The terminal device 302 is connected to the access network device 301 wirelessly, and the access network device 301 is connected to the core network device 303 wirelessly or wiredly. The core network device 303 and the access network device 301 can be independent and different physical devices, or the functions of the core network device 303 and the logical functions of the access network device 301 can be integrated into the same physical device, or part of the functions of the core network device 303 and part of the functions of the access network device 301 can be integrated into one physical device. The terminal device 302 can be fixed or movable. Figure 3 is only a schematic diagram, and the communication system can also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in Figure 3. In addition, the embodiments of the present application do not limit the number of core network devices 303, access network devices 301 and terminal devices 302 included in the mobile communication system.

[0169] Optionally, in the embodiments of the present application, the access network device 301 and the terminal device 302 can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; and can also be deployed in the air on an aircraft, balloon, or satellite. The embodiments of the present application do not limit the application scenarios of the access network device 301 and the terminal device 302.

[0170] The embodiments of the present application can be applied to downlink signal transmission, uplink signal transmission, and device-to-device (D2D) signal transmission. For downlink signal transmission, the transmitting device is the access network device 301, and the corresponding receiving device is the terminal device 302. For uplink signal transmission, the transmitting device is the terminal device 302, and the corresponding receiving device is the access network device 301. For D2D signal transmission, the transmitting device is the terminal device 302, and the corresponding receiving device is also the terminal device 302. The embodiments of the present application do not limit the direction of signal transmission.

[0171] Optionally, in an embodiment of the present application, the access network device 301 and the terminal device 302, as well as the terminal devices 302 and 302, can communicate through an authorized spectrum, or through an unauthorized spectrum, or through both an authorized spectrum and an unauthorized spectrum at the same time. In addition, the access network device 301 and the terminal device 302, as well as the terminal devices 302 and 302, can communicate through a spectrum below 6G, or through a spectrum above 6G, or through both a spectrum below 6G and a spectrum above 6G at the same time. The embodiments of the present application do not limit the spectrum resources used between the access network device 301 and the terminal device 302.

[0172] In combination with the communication system shown in Figure 3, as shown in Figure 4, a paging method is provided in an embodiment of the present application, and the paging method is illustrated by taking the interaction between the first terminal device and the access network device as an example. Of course, the subject that executes the action of the first terminal device in the method can also be a device / module in the first terminal device, such as a chip, processor, processing unit, etc. in the first terminal device; the subject that executes the action of the access network device in the method can also be a device / module in the access network device, such as a chip, processor, processing unit, etc. in the access network device, and the embodiment of the present application does not make specific limitations on this. The processing performed by a single execution subject (for example, a first terminal device or an access network device) in the embodiment of the present application can also be divided into executions by multiple execution subjects, and these execution subjects can be logically and / or physically separated. For example, the processing performed by the access network device can be divided into executions by at least one of CU, DU and RU. Exemplarily, as shown in Figure 4, the method includes the following steps:

[0173] S401: The access network device sends a paging message to the first terminal device. Correspondingly, the first terminal device receives the paging message from the access network device.

[0174] Among them, the paging message is at least one of a first paging message, a second paging message, and a third paging message; the first paging message includes the first bit sequence in the second paging message, and the first bit sequence is used to carry the first type of terminal device identification; the second paging message includes a first bit sequence and a second bit sequence; the first bit sequence and the second bit sequence are used to jointly carry the second type of terminal device identification; the third paging message includes multiple bit partitions; each bit partition in the multiple bit partitions is used to carry the first type of terminal device identification.

[0175] In one possible implementation, the first type terminal device identifier and the second type terminal device identifier are used to identify different types of terminal devices. For example, the first type terminal device identifier is used to identify a low-power terminal device, such as a low power wake-up receiver (LP-WUR), and the second type terminal device identifier is used to identify a non-low-power terminal device.

[0176] In an embodiment of the present application, the access network device can select the type of paging message to be sent according to actual needs. For example, when paging a low-power terminal device, the first paging message or the third paging message is selected to page the low-power terminal device. When paging a non-low-power terminal device, the second paging message is selected to page the non-low-power terminal device. In this way, the paging message for paging the low-power terminal device can include a smaller number of bits, so that the terminal device demodulates fewer bits when demodulating the paging message, and the power consumption required for the terminal device to demodulate is also less. It should be pointed out that when the access network device paging the low-power terminal device, it can also select the second paging message to page the low-power terminal device, but the terminal device identifier of the low-power terminal device is only carried on part of the bits of the second paging message (such as the first bit sequence). After the low-power terminal device receives the second paging message, it only demodulates the bits that carry the terminal device identifier of the low-power terminal device. In this way, the number of bits demodulated by the terminal device when demodulating the paging message will also be smaller, and the power consumption required for the terminal device to demodulate is also less.

[0177] It should be noted that, in the embodiment of the present application, the bit sequence (including but not limited to the first bit sequence, the second bit sequence, the third bit sequence and the fourth bit sequence) may include multiple consecutive bits, or may include multiple non-consecutive bits. For example, the first bit sequence includes the first 12 consecutive bits in the second paging message, and the second bit sequence includes the last 36 consecutive bits in the second paging message. For another example, the first bit sequence includes the last 12 consecutive bits in the second paging message, and the second bit sequence includes the first 36 consecutive bits in the second paging message. For another example, the first bit sequence includes the 12th to 24th consecutive bits in the second paging message, and the second bit sequence includes the 1st to 11th consecutive bits and the 25th to 48th consecutive bits in the second paging message. For another example, the first bit sequence includes the 1st, 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th, 21st, and 23rd bits in the second paging message, and the second bit sequence includes the bits in the second paging message other than the first bit sequence. In addition, the bits included in the first bit sequence and the second bit sequence may also be other continuous or non-continuous bits, which is not limited in this application.

[0178] S402. The first terminal device demodulates the paging message and determines the first type of terminal device identifier carried by the paging message.

[0179] In one possible implementation, the first terminal device may demodulate the paging message after receiving all bits of the paging message. Alternatively, the first terminal device may demodulate while receiving, for example, demodulating the currently received bit after each bit is received, receiving and demodulating the next bit after correctly demodulating the currently received bit, and stopping demodulating the remaining bits in the paging message if the current bit is demodulated incorrectly.

[0180] As an example, the second paging message in the embodiment of the present application may be a 48-bit paging message, and the first paging message is a paging message with fewer than 48 bits (e.g., a 12-bit paging message intercepted from the second paging message). The third paging message is a 48-bit paging message, and the number of paging messages in each bit partition is less than 48 bits.

[0181] Optionally, the first terminal device is a low-power terminal device, and thus the first terminal device only needs to demodulate the first bit sequence, or demodulate one or more bit partitions to obtain the first type of terminal device identifier to complete the demodulation process of the paging message. Compared to the prior art in which a terminal device needs to demodulate a 48-bit paging message before obtaining the identifier of the paging terminal device, in the embodiment of the present application, the first terminal device does not need to demodulate all bits of the paging message, thereby reducing the power consumption of the terminal device in demodulating the paging message.

[0182] In an embodiment of the present application, the access network device may use multiple paging messages to page a terminal device, including a first paging message, a second paging message, and a third paging message. The access network device may flexibly select a paging message to page the terminal device. For example, the access network device may select a first paging message or a third paging message that carries a first type of terminal device identifier to page the terminal device, thereby reducing the number of bits required to demodulate the paging message when the terminal device demodulates the paging message. Alternatively, the access network device may also select a second paging message to page the terminal device, so that after receiving the paging message, the terminal device can intercept the first paging message from the second paging message for demodulation.

[0183] It should be noted that the scenarios of the paging message sent by the access network device include: scenario 1, the paging message is the first paging message; scenario 2, the paging message is the second paging message; scenario 3, the paging message is the third paging message. For different scenarios, the process of demodulating the paging message by the first terminal device is different. The following describes in detail the process of demodulating the paging message by the first terminal device in each scenario:

[0184] Scenario 1: The paging message is the first paging message

[0185] In scenario 1, as shown in FIG5 in combination with FIG4 , the above S402 can be specifically implemented by the following S501:

[0186] S501. A first terminal device demodulates a first bit sequence in a first paging message to obtain a first type terminal device identifier.

[0187] In one possible implementation, the first paging message includes only the first bit sequence, or the first paging message may also include other bit sequences in addition to the first bit sequence, such as a third bit sequence (or fourth bit sequence) carrying an identifier of an access and mobility management network element.

[0188] In a possible implementation, the first paging message is a paging message obtained by the access network device and / or the core network device after intercepting the first bit sequence from the second paging message.

[0189] It should be pointed out that intercepting the first bit sequence from the second paging message to obtain the first paging message may refer to deleting the bits other than the first bit sequence from the second paging message, and only intercepting and retaining the first bit sequence. It may also refer to identifying (or indicating) the first bit sequence to be intercepted in the second paging message, and the terminal device determines the first bit sequence to be intercepted based on the identification or indication, and demodulates the first bit sequence. Alternatively, interception can be understood as enabling the terminal device to determine the first bit sequence to be intercepted in the second paging message, and the specific interception method is not limited in this application.

[0190] In another possible implementation, the first paging message is a paging message selected by the access network device from a first paging message and a second paging message sent by the core network device.

[0191] In an embodiment of the present application, the first paging message and the second paging message respectively carry different types of terminal device identifiers, and the first paging message includes a partial bit sequence of the second paging message. During the paging process, the terminal device demodulates the first bit sequence from the first paging message to obtain the first type of terminal device identifier, so that the terminal device can obtain the terminal device identifier paged by the paging message while demodulating fewer bits. Therefore, the terminal device demodulates fewer bits during the paging process, and the power consumption required for the terminal device demodulation is also less, thereby reducing the power consumption of the terminal device during the paging process.

[0192] Scenario 2: The paging message is the second paging message

[0193] In scenario 2, as shown in FIG6 in combination with FIG4 , the above S402 can be specifically implemented through the following S601 and S602 .

[0194] S601. A first terminal device intercepts a first bit sequence from a second paging message to obtain a first paging message.

[0195] In one possible implementation, the access network device sends a second paging message to the first terminal device. After receiving the second paging message from the access network device, the first terminal device determines a first bit sequence in the second paging message and intercepts the first bit sequence from the second paging message to obtain the first paging message.

[0196] S602: The first terminal device demodulates the first bit sequence in the first paging message to obtain a first type terminal device identifier.

[0197] Based on this, after receiving the second paging message, the first terminal device can intercept the first paging message from the second paging message for demodulation, thereby reducing the number of demodulation bits required by the first terminal device when demodulating the paging message.

[0198] The specific implementation process of S602 may refer to the above S501 and will not be repeated here.

[0199] In one possible implementation, the first terminal device intercepting the first bit sequence from the second paging message in S601 includes the following two implementation scenarios: Scenario 1, where the access network device instructs the first bit sequence to be intercepted; and Scenario 2, where the first terminal device intercepts the first bit sequence based on a first preset rule. Scenario 1 and Scenario 2 are described in detail below.

[0200] Case 1: The access network device instructs to intercept the first bit sequence

[0201] In combination with FIG6 , as shown in FIG7 , in case 1, the above S601 can be specifically implemented through the following S701 and S702 .

[0202] S701: An access network device sends first indication information to a first terminal device. Correspondingly, the first terminal device receives the first indication information from the access network device.

[0203] The first indication information is used to indicate at least one of the following: the position and quantity of the first bit sequence in the second paging message, and a first preset rule for determining the first bit sequence.

[0204] S702. The first terminal device intercepts a first bit sequence from the second paging message based on the first indication information to obtain a first paging message.

[0205] In one possible implementation, the above-mentioned first indication information can be carried in any of the following signaling messages sent by the access network device to the first terminal device: radio resource control signaling message (such as RRC signaling message); media access control layer control element (MAC-CE) signaling message; downlink control information signaling message (such as DCI signaling message); system information block (such as SIB).

[0206] For example, when the first terminal device is in an RRC connected state, the first indication information can be carried in an RRC signaling message, or a MAC-CE signaling message, or a DCI signaling message. Optionally, when the first indication information has a small number of bits and needs to be transmitted quickly, the first indication information can be carried in a DCI signaling message. When the first indication information has a large number of bits and does not need to be updated for a long time, the first indication information can be carried in an RRC signaling message, and before receiving new first indication information, the first terminal device processes the information according to the content indicated by the first indication information.

[0207] When the first terminal device is in the RRC idle state or the activated state, the first indication information can be carried in the SIB. The SIB can carry the first indication information of multiple terminal devices to indicate the position and quantity of the first bit sequences corresponding to the multiple terminal devices. For example, when the access network device uses different paging messages to page the low-power terminal device and the non-low-power terminal device respectively, the access network device carries the first indication information in the SIB message to indicate the position and quantity of the first bit sequences corresponding to each low-power terminal device.

[0208] Case 2: The first terminal device intercepts the first bit sequence based on the first preset rule

[0209] As shown in FIG. 7 , in case 2, the above S601 can be specifically implemented through the following S703 .

[0210] S703. The first terminal device intercepts a first bit sequence from the second paging message based on a first preset rule to obtain a first paging message.

[0211] In one possible implementation, the first preset rule in Case 1 and Case 2 includes: Rule 1: Calculate the position and quantity of the first bit sequence in the second paging message according to a preset calculation method. Rule 2: Query the position and quantity of the first bit sequence in the second paging message according to a preset record table; wherein the preset record table is used to record the position and quantity of the first bit sequence in the second paging message.

[0212] Optionally, for the above rule 1, the first terminal device may calculate the position and number of the first bit sequence according to the calculation method defined in rule 1. Exemplarily, the index X of the first bit sequence satisfies formula 3: X=NG-5G-S-TMSI div (s*2 k ) Formula 3

[0213] The index X of the first bit sequence is used to represent the bit position of the first bit sequence (such as the starting position, the ending position), k represents the number of bits in the first bit sequence, and s represents the scaling factor. k If the first bit sequence is used to distinguish less than 2 terminal devices, the value of s can be 1. k If there are multiple terminal devices, the value of s can be set based on network load or access network device scheduling. The value of s can be predefined or dynamically configured. In the case of dynamic configuration of the value of s, the access network device can configure the value of s through RRC signaling messages, MAC-CE signaling messages, or DCI signaling messages.

[0214] With respect to Rule 2 above, the first terminal device may query the position of the first bit sequence according to the table predefined in Rule 2. The table may be preconfigured in the first terminal device; or it may be preconfigured in the access network device, and the access network device may indicate the table to the first terminal device via indication information (such as the first indication information). For example, the table is shown in Table 1 below:

[0215] Table 1

[0216] Among them, A1-A j is the identifier of the j terminal device, j is a positive integer, and Table 1 is used to represent A1-A j The positions of the first bit sequence corresponding to the j terminal devices are from the 16th bit to the 26th bit.

[0217] It should be noted that in scenario 2, the first terminal device and the access network device are configured with the same rules. For example, both the first access network device and the second access network device are pre-configured with Rule 1. The access network devices determine the position and quantity of the first bit sequence based on Rule 1 and then generate the second paging message. The first terminal device determines the position and quantity of the first bit sequence based on Rule 1 and then intercepts the first bit sequence. Alternatively, the first terminal device may be pre-configured with multiple rules, and the first terminal device may select one of the multiple rules to determine the position and quantity of the first bit sequence.

[0218] In scenario 1, the first terminal device and the access network device can be configured with multiple rules. The access network device indicates to the first terminal device the rule for determining the position and quantity of the first bit sequence. For example, both the first access network device and the second access network device are configured with rule 1 and rule 2. The first access network device determines the position and quantity of the first bit sequence based on rule 1 and then generates a second paging message. The first access network device indicates rule 1 through first indication information. The first terminal device determines the position and quantity of the first bit sequence based on rule 1 and then intercepts the first bit sequence.

[0219] In one possible implementation, the first bit sequence includes N bits in the second paging message, from highest to lowest, where N is a positive integer. Alternatively, the first bit sequence includes N bits in the second paging message, from lowest to highest, or includes bits in N preset positions of the second paging message.

[0220] After the core network device or the access network device generates the second paging message in the above order, it can indicate to the first terminal device the arrangement of the first bit sequence in the second paging message through the indication information. After receiving the second paging message, the first terminal device only needs to determine the position of the first bit sequence to be demodulated according to the arrangement, and demodulate the first bit sequence. Among them, the indication information for indicating the arrangement of the first bit sequence in the second paging message can be carried in one or more of the RRC signaling message, the MAC-CE signaling message, the DCI signaling message, and the SIB, and this application does not limit this.

[0221] It can be understood that in an embodiment of the present application, the number of bits of the first bit sequence can be determined based on at least one of the following: network load, wake-up signal modulation mode, measurement accuracy, and network coverage requirements. For example, the current network load is 10 terminal devices. At this time, the 10 terminal devices can be distinguished by 4 bits in the first bit sequence. At this time, the number of bits of the first bit sequence is greater than or equal to 4. For another example, in a scenario with high network coverage requirements, the shorter the bit stream of the data packet, the lower the error rate. At this time, the number of bits in the paging message can be set to the minimum number of bits that can distinguish all terminal devices in the current network. This embodiment of the present application does not limit this.

[0222] Optionally, the number of bits in the first bit sequence may be 10, 12, 16, 20, 26, or 32. Alternatively, the number of bits in the first bit sequence may be other values, which are not limited in this application.

[0223] In one example, taking the value of N as 10 and the first bit sequence including the 10 bits in the second paging message from high to low, the arrangement diagram of the first bit sequence in the second paging message is shown in FIG8 .

[0224] It is understandable that the value of N can be determined based on the number of first-type terminal devices in the network. The N bits in the first bit sequence should be able to distinguish all first-type terminal devices in the network. The first-type terminal device can report to the core network device whether it needs to demodulate the first paging message (or report whether it demodulates the first paging message or demodulates the second paging message). The core network device determines the value of N based on the number of terminal devices that need to demodulate the first paging message.

[0225] In one possible implementation, based on the above scenarios 1 and 2, before sending the paging message to the first terminal device, the access network device may further indicate the type of the paging message to the first terminal device, so that the first terminal device can demodulate the paging message using a corresponding demodulation method based on the type of the paging message. For example, in conjunction with FIG7 , as shown in FIG9 , the method further includes:

[0226] S901: An access network device sends second indication information to a first terminal device. Correspondingly, the first terminal device receives the second indication information from the access network device.

[0227] The second indication information is used to indicate the type of the paging message; the type of the paging message includes: a first paging message or a second paging message.

[0228] After the first terminal device receives the second indication information, if it is determined that the second indication information indicates that the type of the paging message is the first paging message, the first terminal device directly demodulates the first bit sequence in the first paging message to determine the first type of terminal device identifier. If it is determined that the second indication information indicates that the type of the paging message is the second paging message, the first terminal device intercepts the first bit sequence from the second paging message to obtain the first paging message, and demodulates the first bit sequence in the first paging message to determine the first type of terminal device identifier; alternatively, the first terminal device directly demodulates the complete second paging message to determine the second type of terminal device identifier carried by the second paging message.

[0229] In one possible implementation, the core network device and the access network device can determine the type of the generated paging message based on parameters such as network load, false alarm rate index, false detection rate index, coverage requirements, and power consumption requirements, and indicate the type of the paging message to the first access network device through a second indication information, so that the first terminal device can perform demodulation through corresponding demodulation operations.

[0230] It should be noted that, when the core network device determines the type of paging message to be generated, the second indication information may be carried in the paging message sent by the core network device to the first terminal device. When the access network device determines the type of paging message to be generated, the second indication information may be carried in one or more of the RRC signaling message, MAC-CE signaling message, DCI signaling message, and SIB sent by the access network device to the first terminal device.

[0231] In one possible implementation, when a first terminal device needs to demodulate a first paging message, the first paging message is a paging message obtained by an access network device after intercepting a first bit sequence from a second paging message; or, the first paging message is a paging message obtained by a core network device after intercepting a first bit sequence from a second paging message; or, the first paging message is a paging message selected by the access network device from among the first and second paging messages sent by the core network device. Alternatively, the first paging message is obtained by the first terminal device receiving the second paging message from the access network device by intercepting the first bit sequence from the second paging message.

[0232] In other words, the core network device generates a second paging message corresponding to the terminal device. When the terminal device is a first type of terminal device and the terminal device needs to be paged through the first paging message this time, the core network device intercepts the first paging message from the second paging message and sends the first paging message to the access network device. After receiving the first paging message, the access network device forwards the first paging message to the terminal device. After receiving the first paging message, the terminal device demodulates the first paging message. In this way, the core network device directly intercepts the first paging message from the second paging message, the number of bits of the paging message sent by the core network device to the access network device is smaller, and the network resources of the core network device and the access network device are better occupied, which can increase the network capacity between the core network device and the access network device.

[0233] Alternatively, the core network device generates a second paging message corresponding to the terminal device. If the terminal device is a first-type terminal device and the terminal device needs to be paged via the first paging message, the core network device intercepts the first paging message from the second paging message and sends both the first and second paging messages to the access network device. After receiving the first and second paging messages, the access network device selects whether to send the first or second paging message to the terminal device and, based on the selection, sends the first or second paging message to the terminal device. If the first paging message is sent, the terminal device demodulates the first paging message after receiving the first paging message. If the second paging message is sent, the terminal device can directly demodulate the second paging message after receiving the second paging message, or it can extract the first bit sequence from the second paging message to obtain the first paging message and then demodulate the first paging message. In this way, the core network device sends two sets of paging messages to the access network device. The access network device selects one set of paging messages to send to the terminal device based on actual network conditions, thereby increasing the flexibility of the access network device in sending paging messages.

[0234] Alternatively, the core network device generates a second paging message corresponding to the terminal device and sends the second paging message to the access network device. After receiving the second paging message, the access network device determines whether to send the first paging message or the second paging message to the terminal device. If it is determined to send the first paging message to the terminal device, the access network device intercepts the first bit sequence from the second paging message to obtain the first paging message and sends the first paging message to the terminal device. After receiving the first paging message, the terminal device demodulates the first paging message. If it is determined to send the second paging message to the terminal device, the access network device directly forwards the received second paging message to the terminal device. After receiving the second paging message, the terminal device can directly demodulate the second paging message, or intercept the first bit sequence from the second paging message to obtain the first paging message and demodulate the second paging message. In this way, the access network device can flexibly select the type of paging message sent to the terminal device. When the access network device chooses to send a first paging message to the terminal device, the paging message sent by the access network device to the terminal device uses fewer bits, better utilizes network resources of the access network device and the terminal device, and can increase the network capacity between the access network device and the terminal device. When the access network device chooses to send a second paging message to the terminal device, the terminal device can choose to demodulate the first paging message or the second paging message, increasing the flexibility of the terminal device in demodulating paging messages.

[0235] Scenario 3: The paging message is the third paging message.

[0236] In scenario 3, as shown in FIG10 in combination with FIG4 , the above S402 can be specifically implemented by the following S1001:

[0237] S1001. A first terminal device demodulates one or more bit partitions of a plurality of bit partitions to obtain a first type of terminal device identifier carried by the one or more bit partitions.

[0238] Different bit partitions of the third paging message correspond to different terminal devices. When a terminal device needs to be paged, the bit partition corresponding to the terminal device of the third paging message carries the identifier of the terminal device. After receiving the third paging message, the terminal device can demodulate the identifier of the terminal device in its corresponding bit partition.

[0239] In one example, as shown in FIG11 , the third paging message includes three bit partitions, namely bit partition #1, bit partition #2, and bit partition #3. Bit partition #1 corresponds to terminal devices #1 to #10, and the 10 terminal devices #1 to #10 are distinguished by setting the bits in bit partition #1 to different values; bit partition #2 corresponds to terminal devices #11 to #20, and the 10 terminal devices #11 to #20 are distinguished by setting the bits in bit partition #2 to different values; and bit partition #3 corresponds to terminal devices #21 to #30, and the 10 terminal devices #21 to #30 are distinguished by setting the bits in bit partition #3 to different values.

[0240] In one possible implementation, the process of the first terminal device demodulating one or more bit partitions of the multiple bit partitions in S1001 includes the following two implementation scenarios: Scenario 3, in which the access network device indicates to the first terminal device the partition to be demodulated; and Scenario 4, in which the first terminal device demodulates the third paging message based on a second preset rule. Scenario 3 and Scenario 4 are described in detail below.

[0241] Case 3: The access network device indicates the partition to be demodulated to the first terminal device

[0242] In combination with FIG10 , as shown in FIG12 , in case 3, the above S1001 can be specifically implemented through the following S1201 and S1202 .

[0243] S1201: An access network device sends third indication information to a first terminal device. Correspondingly, the first terminal device receives the third indication information from the access network device.

[0244] The third indication information is used to indicate the bit partition to be demodulated.

[0245] S1202. The first terminal device demodulates the bit partition to be demodulated indicated by the third indication information, and determines the first type of terminal device identifier carried by the bit partition to be demodulated.

[0246] It should be pointed out that the signaling message carrying the third indication information is similar to the signaling message carrying the above-mentioned first indication information. Its specific description can refer to the description of the signaling message carrying the first indication information in Case 1 of the above-mentioned scenario 2, and will not be repeated here.

[0247] In one possible implementation, the third indication information may directly indicate the index of the partition to be demodulated, and the first terminal device determines the partition to be demodulated based on the index indicated by the third indication information. For example, if the access network device determines that the terminal device to be paged is one of terminal devices #21-terminal devices #30, the third indication information sent by the access network device to the first terminal device indicates the index of bit partition #3.

[0248] Case 4: The first terminal device demodulates the third paging message based on the second preset rule.

[0249] As shown in FIG. 12 , in case 4, the above S1001 can be specifically implemented through the following S1203 .

[0250] S1203. The first terminal device sequentially demodulates the multiple bit partitions in the third paging message based on the second preset rule until it demodulates the first bit partition including the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs, and obtains the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs from the first bit partition.

[0251] In one possible implementation, the second preset rule includes at least one of the following: demodulating in order from large to small according to the bit partition index value, demodulating in order from small to large according to the bit partition index value, and demodulating in order starting from a specified bit position.

[0252] In one example, the third paging message includes three bit partitions, namely bit partition #1, bit partition #2 and bit partition #3, and each bit partition includes 16 bits. The first terminal device first demodulates the 16 bits in bit partition #1. If the demodulated first type terminal device identifier includes the identifier of the first terminal device, the first terminal device determines that the access network device pages the terminal device, and the first terminal device performs subsequent random access procedures and other operations. If the demodulated first type terminal device identifier does not include the identifier of the first terminal device, the first terminal device continues to demodulate the 16 bits in bit partition #2, and the process is the same as the above-mentioned process of demodulating the 16 bits in bit partition #1, until the first terminal device demodulates the identifier of the first terminal device or demodulates all three bit partitions in the paging message, and the first terminal device stops demodulating.

[0253] It should be pointed out that the above description uses the example of the first terminal device demodulating in order of indexes from small to large. In specific implementation, the first terminal device can demodulate in any order, and this application does not limit this.

[0254] In another possible implementation, similar to the first preset rule, the second preset rule may also include Rule 3: Calculating the position and number of the first bit sequence in the second paging message according to a preset calculation method. Rule 4: Querying the position and number of the first bit sequence in the second paging message according to a preset record table. In this case, the second preset rule can be understood with reference to the first preset rule described above, and this application will not elaborate on this.

[0255] In one example, the index Y of the bit partition satisfies Formula 4: Y = NG-5G-S-TMSI div (s*2 k ) Formula 4

[0256] The preset record table is shown in Table 2 below:

[0257] Table 2

[0258] Among them, B1-B i is the identifier of the i-th terminal device, i is a positive integer, and Table 2 is used to represent B1-B i The index of the bit partition corresponding to the i terminal device is 2.

[0259] In one possible implementation, based on the above scenario 3, before sending the paging message to the first terminal device, the access network device may further indicate the type of the paging message to the first terminal device, so that the first terminal device can demodulate the paging message using a corresponding demodulation method according to the type of the paging message. For example, in conjunction with FIG12 , as shown in FIG13 , the method further includes:

[0260] S1301: An access network device sends fourth indication information to a first terminal device. Correspondingly, the first terminal device receives the fourth indication information from the access network device.

[0261] The fourth indication information is used to indicate the type of the paging message; the paging message type includes: a third paging message or a fourth paging message; the fourth paging message is used to carry the second type terminal device identifier. Optionally, the third paging message and the fourth paging message may have the same number of bits, for example, the third paging message and the fourth paging message may both have 48 bits; the third paging message and the fourth paging message may also have different number of bits, for example, the third paging message may have 36 bits and the fourth paging message may have 48 bits; this is not limited in this application.

[0262] After the first terminal device receives the fourth indication information, if it is determined that the fourth indication information indicates that the type of the paging message is the third paging message, the first terminal device demodulates one or more bit partitions in the third paging message to determine the first type terminal device identifier. If it is determined that the fourth indication information indicates that the type of the paging message is the fourth paging message, the first terminal device directly demodulates the complete fourth paging message to determine the second type terminal device identifier carried by the fourth paging message.

[0263] It should be noted that the signaling message carrying the fourth indication information is similar to the signaling message carrying the above-mentioned second indication information. Its specific description can refer to the description of the signaling message carrying the second indication information in the above-mentioned S901, which will not be repeated here.

[0264] In one possible implementation, the first type of terminal device identifier includes an identifier of the terminal device (UE ID), or the first type of terminal device identifier includes an identifier of a terminal device group (UE Group ID). The second type of terminal device identifier includes an identifier of the terminal device, or the second type of terminal device identifier includes an identifier of a terminal device group.

[0265] When the paging message pages the first terminal device, the first type of terminal device identifier includes the identifier of the first terminal device; the bit partition to be demodulated is the first bit partition to which the identifier of the first terminal device belongs in the third paging message; or, the first type of terminal device identifier includes the identifier of the terminal device group to which the first terminal device belongs; the bit partition to be demodulated is the first bit partition to which the identifier of the terminal device group to which the first terminal device belongs in the third paging message.

[0266] In other words, if the paging message carries the identifier of a terminal device, the first terminal device, upon demodulating the identifier of the first terminal device, determines that the paging message is for paging the first terminal device. If the paging message carries the identifier of a terminal device group, the first terminal device, upon demodulating the identifier of the terminal device group to which the first terminal device belongs, determines that the paging message is for paging the first terminal device.

[0267] In one possible implementation, the paging message may also include an identifier of an access and mobility management network element (such as AMF).

[0268] Combined with the description of 5G-S-TMSI in the above-mentioned related technologies, it can be seen that the current 5G-S-TMSI uniquely identifies the AMF through 16 bits and uniquely identifies the terminal device through another 32 bits. When paging a low-power terminal device, the LP-WUS used to paging the low-power terminal device needs to page the low-power terminal device through a 48-bit paging message. Taking the data transmission rate between the low-power terminal device and the access network device as 56kbps as an example, two slots are required to transmit the paging message of one terminal device. If the access network device needs to page 50 terminal devices, 100 slots are required to transmit the paging messages of 50 terminal devices. This will cause the LP-WUS in the network to occupy more transmission resources and result in a higher paging delay for the terminal device. Moreover, in a shared network scenario, the AMF needs to be identified in the paging message to determine which AMF the terminal device that needs to be paged is connected to. However, in a scenario where network sharing is not supported, or in a cell where the tracking area remains unchanged, there is only one AMF identifier for a cell. At this time, even if the paging message does not carry the AMF identifier, the other 32 bits can also uniquely identify the terminal device being paged.

[0269] Therefore, in the embodiment of the present application, after receiving the paging message, the first terminal device can first determine the type of the access network device. If the access network device type is a first type access network device, the access and mobility management network element identifier in the paging message is demodulated; if the access network device type is a second type access network device, the access and mobility management network element identifier in the paging message is not demodulated.

[0270] Optionally, when the paging message is a first paging message, the identifier of the access and mobility management network element is carried in a third bit sequence in the first paging message. In this case, when the access network device type is a first type access network device, the third bit sequence in the first paging message is demodulated to obtain the identifier of the access and mobility management network element included in the first paging message; when the access network device type is a second type access network device, the third bit sequence in the first paging message is not demodulated.

[0271] When the paging message is a third paging message, the identifier of the access and mobility management network element is carried in the fourth bit sequence in the third paging message. In this case, if the access network device type is a first type access network device, the fourth bit sequence in the third paging message is demodulated to obtain the identifier of the access and mobility management network element included in the third paging message. If the access network device type is a second type access network device, the fourth bit sequence in the third paging message is not demodulated.

[0272] Optionally, the first type of access network device is a shared access network device, and the second type of access network device is a non-shared access network device.

[0273] Based on this, when the access network device is a shared access network device, one cell may correspond to multiple access and mobility management network element identifiers. At this time, if the terminal device does not demodulate the access and mobility management network element identifier in the first paging message, it may cause the terminal device with different access and mobility management network element identifiers but the same terminal device identifier to wake up, resulting in a false alarm. Therefore, when the access network device is a shared access network device, the terminal device demodulates the access and mobility management network element identifier in the first paging message, so that the terminal device can accurately determine the terminal device paged by the paging message, avoiding false alarms.

[0274] In the case where the access network device is a non-shared access network device, one cell corresponds to the identifier of one access and mobility management network element. In this case, the identifiers of the access and mobility management network elements in the paging message sent by the access network device are the same. In this case, even if the terminal device only demodulates the terminal device identifier, it can correctly determine the terminal device being paged by the paging message. Therefore, when the access network device is a non-shared access network device, the terminal device may not demodulate the identifier of the access and mobility management network element in the first paging message, thereby reducing the number of bits used by the terminal device to demodulate the paging message and further reducing the power consumption of the terminal device during the paging process.

[0275] It should be pointed out that the above embodiments are mainly explained by taking the example of a network entity (such as a core network device, an access network device, a terminal device) intercepting a first paging message from a second paging message to reduce the demodulation power consumption of the terminal device. In a specific implementation, when paging a first type of terminal device, the core network device or the access network device can also generate a new terminal device identifier based on the first type of terminal device, and the number of bits occupied by the new terminal device identifier is less than the number of bits occupied by the original terminal device identifier. At this time, the above-mentioned first bit sequence or bit partition carries the new terminal device identifier. The terminal device demodulates the paging message according to the generation rule of the new terminal device identifier to determine whether it is paged.

[0276] In other words, taking the example of an access network device generating a new terminal device identifier, after the access network device receives the second paging message from the core network device, it determines the terminal device to be paged by the second paging message. The access network device generates a new terminal device identifier corresponding to the terminal device to be paged. After this, the new terminal device identifier is carried in the first bit sequence of the first paging message, and the access network device sends the first paging message to the terminal device. After the terminal device receives the first paging message, it demodulates the first paging message to determine the new terminal device identifier carried by the first paging message, and demodulates the paging message according to the generation rule of the new terminal device identifier to determine whether it has been paged. Alternatively, after the access network device generates a new terminal device identifier corresponding to the terminal device to be paged, it carries the new terminal device identifier in the bit partition corresponding to the terminal device to be paged in the third paging message, and the access network device sends the third paging message to the terminal device. After the terminal device receives the third paging message, it demodulates the third paging message to determine the new terminal device identifier carried by the third paging message, and demodulates the paging message according to the generation rule of the new terminal device identifier to determine whether it has been paged.

[0277] It is understandable that the generation rule of the new terminal device identifier generated by the access network device can be pre-configured in the terminal device, or can be indicated to the terminal device through indication information. When the access network device indicates the generation rule of the new terminal device identifier to the terminal device through indication information, the indication information can be carried in one or more of the RRC signaling message, MAC-CE signaling message, DCI signaling message, and SIB, and this application does not limit this.

[0278] The above primarily describes the solutions provided by the embodiments of the present application from the perspective of interaction between network elements. Accordingly, the embodiments of the present application also provide a communication device for implementing the various methods described above. The communication device may be the access network device described in the method embodiments described above, or a device including the access network device described above, or a component usable with the access network device; or the communication device may be the first terminal device described in the method embodiments described above, or a device including the first terminal device described above, or a component usable with the first terminal device. It will be understood that, to implement the aforementioned functions, the communication device includes hardware structures and / or software modules corresponding to the respective functions. Those skilled in the art will readily appreciate that, in conjunction with the various exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Professionals may use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0279] In the embodiment of the present application, the communication device can be divided into functional modules according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be understood that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0280] 14 shows a schematic structural diagram of a communication device 140 , which includes a processing module 1401 and a communication module 1402 . Optionally, the communication device 140 further includes a storage module 1403 . The storage module 1403 is used to store program codes and data of the communication device 140 .

[0281] For example, the communication device 140 may be the first terminal device in the above method embodiment, or a device including the above first terminal device, or a component that can be used for the first terminal device, then:

[0282] Communication module 1402 is used to obtain a first paging message, the first paging message includes the first bit sequence in the second paging message, the second paging message includes the first bit sequence and the second bit sequence, wherein the first bit sequence is used to carry the first type of terminal device identifier, and the first bit sequence and the second bit sequence are used to jointly carry the second type of terminal device identifier.

[0283] The processing module 1401 demodulates the first bit sequence in the first paging message to obtain a first type terminal device identifier.

[0284] In one possible implementation, the first paging message is a paging message obtained by the access network device after intercepting the first bit sequence from the second paging message; or, the first paging message is a paging message obtained by the core network device after intercepting the first bit sequence from the second paging message; or, the first paging message is a paging message selected by the access network device from the first paging message and the second paging message sent by the core network device.

[0285] In a possible implementation, the processing module 1401 is specifically configured to: instruct the communication module 1402 to receive a first paging message; or instruct the communication module 1402 to receive a second paging message and intercept a first bit sequence from the second paging message to obtain the first paging message.

[0286] In one possible implementation, the processing module 1401 is specifically used to: instruct the communication module 1402 to receive first indication information, where the first indication information is used to indicate at least one of the following: the position and quantity of the first bit sequence in the second paging message, and determine the first preset rule of the first bit sequence; based on the first indication information, intercept the first bit sequence from the second paging message to obtain the first paging message.

[0287] In a possible implementation, the processing module 1401 is specifically configured to: based on a first preset rule, intercept a first bit sequence from the second paging message to obtain the first paging message.

[0288] In one possible implementation, the first preset rule includes at least one of the following: calculating the position and quantity of the first bit sequence in the second paging message according to a preset calculation method, and querying the position and quantity of the first bit sequence in the second paging message according to a preset record table; wherein the preset record table is used to record the position and quantity of the first bit sequence in the second paging message.

[0289] In one possible implementation, the first bit sequence includes N bits from high to low in the bit positions of the second paging message; N is a positive integer; or, the first bit sequence includes N bits from low to high in the bit positions of the second paging message; or, the first bit sequence includes bits at N preset positions of the second paging message.

[0290] In a possible implementation, the communication module 1402 is further configured to receive second indication information, where the second indication information is used to indicate a type of the paging message; the type of the paging message includes: a first paging message or a second paging message.

[0291] In a possible implementation manner, the first type terminal device identifier or the second type terminal device identifier includes: an identifier of a terminal device or an identifier of a terminal device group.

[0292] In one possible implementation, the first paging message also includes an identifier of an access and mobility management network element, wherein the identifier of the access and mobility management network element is carried in a third bit sequence in the first paging message; the processing module 1401 is also used to demodulate the third bit sequence in the first paging message when the access network device type is a first type of access network device to obtain the identifier of the access and mobility management network element included in the first paging message; and when the access network device type is a second type of access network device, the third bit sequence in the first paging message is not demodulated.

[0293] In a possible implementation, the first type of access network device is a shared access network device, and the second type of access network device is a non-shared access network device.

[0294] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

[0295] Alternatively, taking the communication device 140 as the first terminal device in the above method embodiment, or a device including the above first terminal device, or a component that can be used for the first terminal device as an example, then:

[0296] The communication module 1402 is used to receive a third paging message, where the third paging message includes multiple bit partitions; each bit partition in the multiple bit partitions is used to carry a first type terminal device identifier.

[0297] The processing module 1401 is used to demodulate one or more bit partitions of the multiple bit partitions to obtain the first type of terminal device identifier carried by the one or more bit partitions.

[0298] In one possible implementation, the communication module 1402 is also used to receive third indication information, where the third indication information is used to indicate the bit partition to be demodulated; the processing module 1401 is specifically used to demodulate the bit partition to be demodulated indicated by the third indication information, and determine the first type of terminal device identifier carried by the bit partition to be demodulated.

[0299] In a possible implementation manner, the first type terminal device identifier includes an identifier of a terminal device or an identifier of a terminal device group.

[0300] In one possible implementation, the method is applied to a first terminal device; the first type of terminal device identifier includes the identifier of the first terminal device; the bit partition to be demodulated is the first bit partition to which the identifier of the first terminal device belongs in the third paging message; or, the first type of terminal device identifier includes the identifier of the terminal device group to which the first terminal device belongs; the bit partition to be demodulated is the first bit partition to which the identifier of the terminal device group to which the first terminal device belongs in the third paging message.

[0301] In one possible implementation, the processing module 1401 is specifically used to: demodulate multiple bit partitions in the third paging message in sequence based on the second preset rule until the first bit partition including the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs is demodulated, and obtain the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs from the first bit partition.

[0302] In a possible implementation, the second preset rule includes at least one of the following: demodulating in order from large to small according to the bit partition index value, demodulating in order from small to large according to the bit partition index value, and demodulating in order starting from a specified bit position.

[0303] In a possible implementation, the communication module 1402 is further used to receive fourth indication information, where the fourth indication information is used to indicate the type of the paging message; the type of the paging message includes: a third paging message or a fourth paging message; and the fourth paging message is used to carry the second type terminal device identifier.

[0304] In one possible implementation, the third paging message also includes an identifier of the access and mobility management network element; the identifier of the access and mobility management network element is carried by the fourth bit sequence of the third paging message; the processing module 1401 is also used to: when the access network device type is a first type of access network device, demodulate the fourth bit sequence of the third paging message to obtain the identifier of the access and mobility management network element included in the third paging message; when the access network device type is a second type of access network device, not demodulate the fourth bit sequence of the third paging message.

[0305] In a possible implementation, the first type of access network device is a shared access network device, and the second type of access network device is a non-shared access network device.

[0306] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

[0307] Alternatively, taking the example that the communication device 140 may be the access network device in the above method embodiment, or a device including the above access network device, or a component that can be used for the access network device, then:

[0308] Communication module 1402 is used to send a paging message; wherein the paging message is at least one of a first paging message, a second paging message, and a third paging message; the first paging message includes the first bit sequence in the second paging message, and the first bit sequence is used to carry the first type of terminal device identification; the second paging message includes the first bit sequence and the second bit sequence; the first bit sequence and the second bit sequence are used to jointly carry the second type of terminal device identification; the third paging message includes multiple bit partitions; each bit partition in the multiple bit partitions is used to carry the first type of terminal device identification.

[0309] In a possible implementation, the communication module 1402 is further configured to receive a paging message from a core network device.

[0310] In a possible implementation, the communication module 1402 receives a second paging message from a core network device; and the processing module 1401 is further configured to intercept a first bit sequence from the second paging message to obtain a first paging message.

[0311] In one possible implementation, when the paging message is the first paging message, the communication module 1402 is further used to receive the first paging message and the second paging message from the core network device; the processing module 1401 is further used to select the first paging message from the first paging message and the second paging message.

[0312] In a possible implementation, the first paging message further includes an identifier of an access and mobility management network element, wherein the identifier of the access and mobility management network element is carried in a third bit sequence in the first paging message.

[0313] In one possible implementation, when the paging message is the second paging message, the communication module 1402 is further used to receive the first paging message and the second paging message from the core network device; the processing module 1401 is further used to select the second paging message from the first paging message and the second paging message.

[0314] In one possible implementation, when the paging message is a second paging message, the communication module 1402 is further used to send first indication information, where the first indication information is used to indicate at least one of the following: the position and quantity of the first bit sequence in the second paging message, and a first preset rule for determining the first bit sequence.

[0315] In one possible implementation, the first preset rule includes at least one of the following: calculating the position and quantity of the first bit sequence in the second paging message according to a preset calculation method, and querying the position and quantity of the first bit sequence in the second paging message according to a preset record table; wherein the preset record table is used to record the position and quantity of the first bit sequence in the second paging message.

[0316] In one possible implementation, the first bit sequence includes N bits from high to low in the bit positions of the second paging message; N is a positive integer; or, the first bit sequence includes N bits from low to high in the bit positions of the second paging message; or, the first bit sequence includes bits at N preset positions of the second paging message.

[0317] In a possible implementation, the communication module 1402 is further configured to send second indication information, where the second indication information is used to indicate the type of the paging message; the type of the paging message includes: a first paging message or a second paging message.

[0318] In a possible implementation manner, the first type terminal device identifier or the second type terminal device identifier includes: an identifier of a terminal device or an identifier of a terminal device group.

[0319] In a possible implementation, when the paging message is the third paging message, the communication module 1402 is further configured to send third indication information, where the third indication information is used to indicate a bit partition to be demodulated.

[0320] In a possible implementation manner, the first type terminal device identifier includes an identifier of a terminal device or an identifier of a terminal device group.

[0321] In one possible implementation, the first type of terminal device identifier includes the identifier of the first terminal device; the bit partition to be demodulated is the first bit partition to which the identifier of the first terminal device belongs in the third paging message; or, the first type of terminal device identifier includes the identifier of the terminal device group to which the first terminal device belongs; the bit partition to be demodulated is the first bit partition to which the identifier of the terminal device group to which the first terminal device belongs in the third paging message.

[0322] In a possible implementation, the communication module 1402 is further used to send fourth indication information, where the fourth indication information is used to indicate the type of the paging message; the type of the paging message includes: a third paging message or a fourth paging message; the fourth paging message is used to carry the second type terminal device identifier.

[0323] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

[0324] Alternatively, the modules in FIG14 may also be referred to as units. For example, the processing module may be referred to as a processing unit, and the transceiver module may be referred to as a transceiver unit. In addition, in the embodiment shown in FIG14 , the names of the units may not be those shown in the figure. For example, the transceiver module may also be referred to as a communication module or a communication unit.

[0325] If the various units in Figure 14 are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially 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, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or an access network device, etc.) or a processor (processor) to execute all or part of the steps of the method described in each embodiment of the present application. The storage medium for storing computer software products includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0326] In the embodiment of the present application, the communication device 140 is presented in the form of various functional modules divided in an integrated manner. The "module" here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and / or other devices that can provide the above functions. In a simple embodiment, those skilled in the art will appreciate that the communication device 140 can take the form of the communication device shown in Figure 15.

[0327] Referring to FIG. 15 , the communication device includes a processor 1501 and a transceiver 1502 , and optionally, further includes a memory 1503 connected to the processor 1501 .

[0328] Processor 1501 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application. Processor 1501 may also include multiple CPUs, and processor 1501 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, or processing cores for processing data (such as computer program instructions).

[0329] The processor 1501, memory 1503, and transceiver 1502 are connected via a bus. Transceiver 1502 is used to communicate with other communication devices. Optionally, transceiver 1502 may include a transmitter and a receiver. The device in transceiver 1502 that implements a receiving function may be considered a receiver, which is used to perform the receiving steps in the embodiments of the present application. The device in transceiver 1502 that implements a transmitting function may be considered a transmitter, which is used to perform the transmitting steps in the embodiments of the present application.

[0330] In a first possible implementation, referring to FIG15 , the communication device further includes a memory 1503. The memory 1503 may be a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, and the present embodiment of the application does not impose any restrictions on this. The memory 1503 may exist independently or be integrated with the processor 1501. Among them, the memory 1503 may contain computer program code. The processor 1501 is used to execute the computer program code stored in the memory 1503, thereby implementing the method provided in the embodiment of the present application.

[0331] An embodiment of the present application also provides a computer-readable storage medium, comprising instructions, which, when executed on a computer, enables the computer to execute any of the above methods.

[0332] An embodiment of the present application also provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute any of the above methods.

[0333] An embodiment of the present application further provides a chip, including: a processor and an interface, wherein the processor is coupled to a memory via the interface, and when the processor executes a computer program or instruction in the memory, any one of the methods provided in the above embodiments is executed.

[0334] An embodiment of the present application also provides a communication system, including: the terminal device, access network device and core network device in the above embodiment.

[0335] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more media integrated therein. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)).

[0336] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0337] Although the present application has been described in conjunction with features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

[0338] The above is merely an embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application shall be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

Claims

1. A paging method, characterized in that: The method comprises: Acquire a first paging message, where the first paging message includes a first bit sequence in a second paging message, and the second paging message includes the first bit sequence and a second bit sequence, wherein the first bit sequence is used to carry a first type of terminal device identifier, and the first bit sequence and the second bit sequence are used to jointly carry a second type of terminal device identifier; Demodulate the first bit sequence in the first paging message to obtain the first type of terminal device identifier.

2. The method according to claim 1, characterized in that The first paging message is a paging message obtained by the access network device after intercepting the first bit sequence from the second paging message; Alternatively, the first paging message is a paging message obtained by the core network device after intercepting the first bit sequence from the second paging message; Alternatively, the first paging message is a paging message selected by the access network device from the first paging message and the second paging message sent by the core network device.

3. The method according to claim 1, characterized in that: The obtaining of the first paging message includes: receiving the first paging message; or, The second paging message is received, and the first bit sequence is intercepted from the second paging message to obtain the first paging message.

4. The method according to claim 3, characterized in that The intercepting the first bit sequence from the second paging message to obtain the first paging message includes: receiving first indication information, where the first indication information is used to indicate at least one of the following: a position and a quantity of the first bit sequence in the second paging message, and determining a first preset rule for the first bit sequence; Based on the first indication information, the first bit sequence is intercepted from the second paging message to obtain the first paging message.

5. The method according to claim 3, characterized in that: The intercepting the first bit sequence from the second paging message to obtain the first paging message includes: Based on a first preset rule, the first bit sequence is intercepted from the second paging message to obtain the first paging message.

6. The method according to claim 4 or 5, characterized in that: The first preset rule includes at least one of the following: Calculate the position and quantity of the first bit sequence in the second paging message according to a preset calculation method; The position and quantity of the first bit sequence in the second paging message are queried according to a preset record table; wherein the preset record table is used to record the position and quantity of the first bit sequence in the second paging message.

7. The method according to any one of claims 1 to 6, characterized in that: The first bit sequence includes N bits of the second paging message from high to low; N is a positive integer; Alternatively, the first bit sequence includes N bits from low to high among the bits of the second paging message; Alternatively, the first bit sequence includes bits at N preset positions of the second paging message.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: Second indication information is received, where the second indication information is used to indicate a type of a paging message; the type of the paging message includes: the first paging message or the second paging message.

9. The method according to any one of claims 1 to 8, characterized in that: The first type terminal device identifier or the second type terminal device identifier includes: an identifier of a terminal device or an identifier of a terminal device group.

10. The method according to any one of claims 1 to 9, characterized in that: The first paging message further includes an identifier of an access and mobility management network element, wherein the identifier of the access and mobility management network element is carried in a third bit sequence in the first paging message; The method further comprises: In a case where the type of the access network device is a first type of access network device, demodulating the third bit sequence in the first paging message to obtain an identifier of the access and mobility management network element included in the first paging message; In a case where the type of the access network device is a second-type access network device, the third bit sequence in the first paging message is not demodulated.

11. The method according to claim 10, characterized in that The first type of access network device is a shared access network device, and the second type of access network device is a non-shared access network device.

12. A paging method, characterized in that: include: Receive a third paging message, wherein the third paging message includes a plurality of bit partitions; each bit partition of the plurality of bit partitions is used to carry a first type of terminal device identifier; Demodulate one or more bit partitions of the multiple bit partitions to obtain a first type of terminal device identifier carried by the one or more bit partitions.

13. The method according to claim 12, characterized in that include: receiving third indication information, where the third indication information is used to indicate a bit partition to be demodulated; The demodulating one or more bit partitions of the multiple bit partitions to obtain a first type of terminal device identifier carried by the one or more bit partitions includes: Demodulate the bit partition to be demodulated indicated by the third indication information, and determine the first type of terminal device identifier carried by the bit partition to be demodulated.

14. The method according to claim 13, characterized in that The first type of terminal device identifier includes an identifier of a terminal device or an identifier of a terminal device group.

15. The method according to claim 14, characterized in that The method is applied to a first terminal device; The first type of terminal device identifier includes the identifier of the first terminal device; the bit partition to be demodulated is the first bit partition to which the identifier of the first terminal device belongs in the third paging message; Alternatively, the first type of terminal device identifier includes an identifier of a terminal device group to which the first terminal device belongs; and the bit partition to be demodulated is the first bit partition to which the identifier of the terminal device group to which the first terminal device belongs in the third paging message belongs.

16. The method according to any one of claims 12 to 15, characterized in that: The demodulating one or more bit partitions of the multiple bit partitions to obtain a first type of terminal device identifier carried by the one or more bit partitions includes: Based on the second preset rule, multiple bit partitions in the third paging message are demodulated in sequence until the first bit partition including the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs is demodulated, and the identifier of the first terminal device or the identifier of the terminal device group to which the first terminal device belongs is obtained from the first bit partition.

17. The method according to claim 16, characterized in that The second preset rule includes at least one of the following: Demodulate in order from large to small according to the bit partition index value; Demodulate in order from small to large according to the bit partition index value; Demodulates sequentially starting from the specified bit position.

18. The method according to any one of claims 12 to 17, characterized in that: The method further comprises: Receive fourth indication information, where the fourth indication information is used to indicate the type of a paging message; the type of the paging message includes: the third paging message or the fourth paging message; and the fourth paging message is used to carry a second type of terminal device identifier.

19. The method according to any one of claims 12 to 18, characterized in that: The third paging message further includes an identifier of an access and mobility management network element; the identifier of the access and mobility management network element is carried by a fourth bit sequence of the third paging message; The method further comprises: In a case where the type of the access network device is a first type of access network device, demodulating the fourth bit sequence of the third paging message to obtain an identifier of the access and mobility management network element included in the third paging message; When the type of the access network device is a second-type access network device, the fourth bit sequence of the third paging message is not demodulated.

20. The method according to claim 19, characterized in that The first type of access network device is a shared access network device, and the second type of access network device is a non-shared access network device.

21. A paging method, characterized in that: include: Sending a paging message; wherein the paging message is at least one of a first paging message, a second paging message, and a third paging message; The first paging message includes a first bit sequence in the second paging message, where the first bit sequence is used to carry a first type of terminal device identifier; The second paging message includes the first bit sequence and the second bit sequence; the first bit sequence and the second bit sequence are used to jointly carry the second type of terminal equipment identifier; The third paging message includes multiple bit partitions; each bit partition in the multiple bit partitions is used to carry the first type of terminal equipment identifier.

22. The method according to claim 21, characterized in that The method further comprises: Receive the paging message from the core network device.

23. The method according to claim 21, characterized in that In the case where the paging message is a first paging message, the method further includes: Receiving the second paging message from the core network device; The first bit sequence is intercepted from the second paging message to obtain the first paging message.

24. The method according to claim 21, characterized in that In the case where the paging message is a first paging message, the method further includes: Receiving the first paging message and the second paging message from a core network device; The first paging message is selected from the first paging message and the second paging message.

25. The method according to any one of claims 21 to 24, characterized in that: The first paging message further includes an identifier of an access and mobility management network element, wherein the identifier of the access and mobility management network element is carried in a third bit sequence in the first paging message.

26. The method according to claim 21, characterized in that In a case where the paging message is a second paging message, the method further includes: Receiving the first paging message and the second paging message from a core network device; The second paging message is selected from the first paging message and the second paging message.

27. The method according to claim 21, 22 or 26, characterized in that In a case where the paging message is a second paging message, the method further includes: Send first indication information, where the first indication information is used to indicate at least one of the following: a position and a quantity of the first bit sequence in the second paging message, and a first preset rule for determining the first bit sequence.

28. The method according to claim 27, characterized in that The first preset rule includes at least one of the following: Calculate the position and quantity of the first bit sequence in the second paging message according to a preset calculation method; The position and quantity of the first bit sequence in the second paging message are queried according to a preset record table; wherein the preset record table is used to record the position and quantity of the first bit sequence in the second paging message.

29. The method according to any one of claims 21 to 28, characterized in that: The first bit sequence includes N bits of the second paging message from high to low; N is a positive integer; Alternatively, the first bit sequence includes N bits from low to high among the bits of the second paging message; Alternatively, the first bit sequence includes bits at N preset positions of the second paging message.

30. The method according to any one of claims 21 to 29, characterized in that: The method further comprises: Sending second indication information, where the second indication information is used to indicate a type of a paging message; the type of the paging message includes: the first paging message or the second paging message.

31. The method according to any one of claims 21 to 30, characterized in that: The first type terminal device identifier or the second type terminal device identifier includes: an identifier of a terminal device or an identifier of a terminal device group.

32. The method according to claim 21 or 22, characterized in that In case that the paging message is a third paging message, the method further includes: sending third indication information, where the third indication information is used to indicate a bit partition to be demodulated.

33. The method according to claim 32, characterized in that The first type of terminal device identifier includes an identifier of a terminal device or an identifier of a terminal device group.

34. The method according to claim 33, characterized in that The first type of terminal device identifier includes the identifier of the first terminal device; the bit partition to be demodulated is the first bit partition to which the identifier of the first terminal device belongs in the third paging message; Alternatively, the first type of terminal device identifier includes an identifier of a terminal device group to which the first terminal device belongs; and the bit partition to be demodulated is the first bit partition to which the identifier of the terminal device group to which the first terminal device belongs in the third paging message belongs.

35. The method according to any one of claims 21 or 32-34, characterized in that: The method further comprises: Send fourth indication information, where the fourth indication information is used to indicate the type of the paging message; the type of the paging message includes: the third paging message or the fourth paging message; the fourth paging message is used to carry the second type of terminal device identification.

36. A communication device, characterized in that: include: A functional unit for executing the method as described in any one of claims 1 to 35; wherein the actions performed by the functional unit are implemented through hardware or through hardware executing corresponding software implementations.

37. A communication device, characterized in that: include: processor; The processor is connected to a memory, the memory is used to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory so that the communication device implements the method described in any one of claims 1-35.

38. A computer-readable storage medium, characterized in that: The method comprises instructions which, when executed on a computer, cause the computer to execute the method according to any one of claims 1 to 35.

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