Paging method, terminal, network device and processor readable storage medium

Abstract

The invention provides a paging method, a terminal, network equipment and a processor readable storage medium, and relates to the technical field of communication. The paging method comprises the following steps: a terminal sends an uplink reference signal; in a first time window or a first time domain position, the terminal monitors first information or a paging message sent by first network equipment; wherein the first network device comprises at least one network device which receives the uplink reference signal and satisfies a first condition, and the first information is used for instructing the terminal to receive a paging message or instructing the terminal to initiate random access. The paging method and the paging device can solve the problem of waste of resources and energy consumption caused by the fact that a network side needs to page one UE in a large range in an existing paging method.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to a paging method, a terminal, a network device and a processor readable storage medium. BACKGROUND

[0002] Paging is a process of finding a terminal or a user equipment (UE) initiated by a network side. A triggering condition of paging is that the network side has signaling or data to send to the UE, but the state of the UE is not a connected state. At this time, the network device cannot directly send data to the UE, and even does not know the specific location of the UE. Therefore, the network side needs to perform a paging operation to trigger the UE to enter a connected state and communicate with the network. The paging range sent by the network side is determined based on the state of the UE, such as a tracking area (TA) in the paging area of an idle state (IDLE) UE and a RAN-based notification area (RNA) in the paging area of an inactive state (INACTIVE) UE. The network side needs to send a paging message to all access network nodes in the paging area (such as TA or RNA) for paging of one UE. After receiving the paging message, the UE selects a suitable cell to initiate a random access process. This paging method needs the network side to page one UE in a large range, which causes waste of resources and energy consumption. SUMMARY

[0003] The present application provides a paging method, a terminal, a network device and a processor readable storage medium, which solves the problem that the current paging method needs the network side to page one UE in a large range, causing waste of resources and energy consumption.

[0004] An embodiment of the present application provides a paging method, comprising:

[0005] The terminal sends an uplink reference signal;

[0006] The terminal listens to first information or a paging message sent by a first network device in a first time window or a first time domain position.

[0007] The first network device includes at least one network device that receives the uplink reference signal and meets a first condition, and the first information is used to indicate that the terminal receives the paging message or is used to indicate that the terminal initiates random access.

[0008] Optionally, the network device that receives the uplink reference signal includes at least one of the following:

[0009] The network device that receives the uplink reference signal with a signal strength greater than or equal to a first threshold;

[0010] a network device receiving the uplink reference signal with a signal quality greater than or equal to a second threshold;

[0011] a network device successfully demodulating the uplink reference signal.

[0012] Optionally, the first condition comprises at least one of:

[0013] a signal strength of the uplink reference signal received by the terminal being greater than or equal to a third threshold;

[0014] a signal quality of the uplink reference signal received by the terminal being greater than or equal to a fourth threshold;

[0015] the terminal successfully demodulating the uplink reference signal.

[0016] Optionally, the terminal sending the uplink reference signal comprises:

[0017] the terminal sending the uplink reference signal in a periodic manner;

[0018] and / or,

[0019] the terminal sending the uplink reference signal in a case where a second condition is met; wherein the second condition comprises the terminal entering a first area, or the terminal changing a first area, or the terminal leaving a first area.

[0020] Optionally, the first area comprises at least one of:

[0021] a TA of the terminal;

[0022] an RNA of the terminal;

[0023] a pre-set physical area.

[0024] Optionally, the terminal determines that the second condition is met by at least one of:

[0025] the terminal determining, based on mobile location positioning, that a geographical position of the terminal belongs to a pre-set physical area, or that the geographical position of the terminal does not belong to the pre-set physical area;

[0026] the terminal determining, based on received downlink information, that a network device serving the terminal belongs to a TA of the terminal, or that a TA of the terminal is changed;

[0027] the terminal determining, based on received downlink information, that a network device serving the terminal belongs to an RNA of the terminal, or that an RNA of the terminal is changed.

[0028] Optionally, the terminal transmits an uplink reference signal, comprising:

[0029] The terminal transmits the uplink reference signal on a first time domain resource; wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal.

[0030] And / or,

[0031] The terminal transmits the uplink reference signal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on an uplink reference signal frequency associated with frequency information of a downlink reference signal received by the terminal.

[0032] Optionally, the terminal monitors first information or a paging message transmitted by a first network device, comprising:

[0033] The terminal monitors the first information or the paging message transmitted by the first network device on a second frequency domain resource; wherein the second frequency domain resource comprises at least one of the following:

[0034] A frequency domain resource for transmitting and / or receiving a downlink reference signal;

[0035] A frequency domain resource associated with a frequency domain resource for transmitting and / or receiving a downlink reference signal.

[0036] Optionally, the paging method further comprises at least one of the following:

[0037] In a case where the first information for indicating the terminal to receive the paging message is monitored, the terminal performs paging message monitoring;

[0038] In a case where the first information for indicating the terminal to initiate random access is monitored, the terminal initiates random access on a resource scheduled by the first information;

[0039] In a case where the paging message is monitored, the terminal initiates random access.

[0040] Optionally, the first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal transmitted by the terminal;

[0041] And / or,

[0042] The first time domain position is associated with an uplink reference signal transmitted by the terminal, or is determined based on identification information of the terminal.

[0043] Optionally, the first time window is associated with an uplink reference signal sent by the terminal, including that the first time window is associated with a sending time of the last uplink reference signal sent by the terminal.

[0044] and / or,

[0045] The first time domain position is associated with an uplink reference signal sent by the terminal, including that the first time domain position is associated with a sending time of the last uplink reference signal sent by the terminal.

[0046] Embodiments of the present application provide a paging method, the method comprising:

[0047] The first network device receives an uplink reference signal sent by the terminal;

[0048] In a first time window or a first time domain position, the first network device sends first information or a paging message to the terminal;

[0049] The first network device comprises at least one network device receiving the uplink reference signal and satisfying a first condition, and the first information is used for instructing the terminal to receive a paging message or for instructing the terminal to initiate random access.

[0050] Optionally, the network device receiving the uplink reference signal comprises at least one of the following:

[0051] The network device receiving the uplink reference signal with a signal strength greater than or equal to a first threshold;

[0052] The network device receiving the uplink reference signal with a signal quality greater than or equal to a second threshold;

[0053] The network device successfully demodulating the uplink reference signal.

[0054] Optionally, the first condition comprises at least one of the following:

[0055] The signal strength of the uplink reference signal is greater than or equal to a third threshold;

[0056] The signal quality of the uplink reference signal is greater than or equal to a fourth threshold;

[0057] The uplink reference signal is successfully demodulated.

[0058] Optionally, the first network device receiving the uplink reference signal sent by the terminal comprises:

[0059] The first network device receives the uplink reference signal sent by the terminal on a first time domain resource; wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal.

[0060] and / or,

[0061] The first network device receives the uplink reference signal sent by the terminal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on frequency information of the downlink reference signal sent by the first network device.

[0062] Optionally, the first network device sends first information or a paging message to the terminal, including:

[0063] The first network device sends first information or a paging message to the terminal on a second frequency domain resource; wherein the second frequency domain resource includes at least one of the following:

[0064] A frequency domain resource for sending and / or receiving a downlink reference signal;

[0065] A frequency domain resource associated with a frequency domain resource for sending and / or receiving a downlink reference signal.

[0066] Optionally, the first network device sends first information or a paging message to the terminal, including:

[0067] If the first network device determines that there is a paging message of the terminal, the first network device sends first information or a paging message to the terminal within a first time window or at a first time domain position.

[0068] Optionally, the paging method further includes:

[0069] In a case where a duration for which the first network device stores the paging message of the terminal exceeds a first valid duration, the paging message of the terminal is deleted.

[0070] Optionally, the first network device sends first information or a paging message to the terminal within a first time window or at a first time domain position, including:

[0071] Within a second valid duration for receiving the uplink reference signal, if the paging message of the terminal is received or arrives, the first network device sends first information or the paging message to the terminal within the first time window or at the first time domain position.

[0072] Optionally, the first valid time length is determined based on a transmission period of the uplink reference signal or a period at which the terminal monitors a paging message.

[0073] and / or,

[0074] The second valid time length is determined based on a transmission period of the uplink reference signal or a period at which the terminal monitors a paging message.

[0075] Optionally, the first network device sends first information or a paging message to the terminal, including:

[0076] The first network device sends a first message to a management node of the first network device; wherein the first message is used to request the management node to query whether there is a paging message of the terminal;

[0077] In a case where the first network device receives a second message sent by the management node, the first network device sends first information or a paging message to the terminal; wherein the second message is used to indicate that there is a paging message of the terminal, and / or the second message carries the paging message of the terminal.

[0078] Optionally, the first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal received by the first network device;

[0079] and / or,

[0080] The first time domain position is associated with an uplink reference signal received by the first network device or is determined based on identification information of the terminal.

[0081] Optionally, the first time window being associated with an uplink reference signal received by the first network device includes that the first time window is associated with a reception time of the last time when the first network device receives an uplink reference signal.

[0082] and / or,

[0083] The first time domain position being associated with an uplink reference signal received by the first network device includes that the first time domain position is associated with a reception time of the last time when the first network device receives an uplink reference signal.

[0084] Embodiments of the present application provide a terminal, including a memory, a transceiver, and a processor.

[0085] The memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0086] transmit an uplink reference signal;

[0087] In a first time window or a first time domain position, a first information or a paging message sent by a first network device is listened to;

[0088] The first network device comprises at least one network device receiving the uplink reference signal and satisfying a first condition, and the first information is used for instructing the terminal to receive a paging message or for instructing the terminal to initiate random access.

[0089] Optionally, the network device receiving the uplink reference signal comprises at least one of the following:

[0090] A network device receiving the uplink reference signal with a signal strength greater than or equal to a first threshold;

[0091] A network device receiving the uplink reference signal with a signal quality greater than or equal to a second threshold;

[0092] A network device successfully demodulating the uplink reference signal.

[0093] Optionally, the first condition comprises at least one of the following:

[0094] A signal strength of the uplink reference signal greater than or equal to a third threshold;

[0095] A signal quality of the uplink reference signal greater than or equal to a fourth threshold;

[0096] Successful demodulation of the uplink reference signal.

[0097] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0098] The uplink reference signal is sent in a periodic manner;

[0099] And / or,

[0100] The uplink reference signal is sent under a second condition, wherein the second condition comprises that the terminal enters a first area, or the terminal changes the first area, or the terminal leaves the first area.

[0101] Optionally, the first area comprises at least one of the following:

[0102] A TA of the terminal;

[0103] An RNA of the terminal;

[0104] A pre-set physical area.

[0105] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following to determine that the second condition is met:

[0106] determining, based on the mobile location positioning, that the geographic location of the terminal belongs to a pre-configured physical area or that the geographic location of the terminal does not belong to a pre-configured physical area;

[0107] determining, based on the received downlink information, that the network device serving the terminal belongs to the TA of the terminal or that the TA of the terminal is changed;

[0108] determining, based on the received downlink information, that the network device serving the terminal belongs to the RNA of the terminal or that the RNA of the terminal is changed.

[0109] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0110] sending the uplink reference signal on a first time domain resource, wherein the first time domain resource is configured by a network side device or the first time domain resource is determined based on the identification information of the terminal;

[0111] and / or,

[0112] sending the uplink reference signal on a first frequency domain resource, wherein the first frequency domain resource is configured by a network side device or the first frequency domain resource is determined based on the frequency information of the downlink reference signal received by the terminal.

[0113] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0114] listening to the first information or the paging message sent by the first network device on a second frequency domain resource, wherein the second frequency domain resource includes at least one of the following:

[0115] a frequency domain resource for sending and / or receiving a downlink reference signal;

[0116] a frequency domain resource associated with the frequency domain resource for sending and / or receiving a downlink reference signal.

[0117] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following:

[0118] performing paging message listening in a case where the first information indicating that the terminal receives a paging message is listened to;

[0119] initiate random access on a resource scheduled by the first information in a case that the first information indicating the terminal to initiate random access is monitored;

[0120] initiate random access in a case that the paging message is monitored.

[0121] Optionally, the first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal sent by the terminal.

[0122] and / or,

[0123] The first time domain position is associated with an uplink reference signal sent by the terminal, or is determined based on identification information of the terminal.

[0124] Optionally, the first time window being associated with the uplink reference signal sent by the terminal includes that the first time window is associated with a sending time of the terminal sending the uplink reference signal last time.

[0125] and / or,

[0126] The first time domain position being associated with the uplink reference signal sent by the terminal includes that the first time domain position is associated with a sending time of the terminal sending the uplink reference signal last time.

[0127] Embodiments of the present application provide a terminal, comprising:

[0128] a sending unit configured to send an uplink reference signal;

[0129] a monitoring unit configured to monitor a first information or a paging message sent by a first network device in a first time window or a first time domain position;

[0130] The first network device includes at least one network device receiving the uplink reference signal and satisfying a first condition, and the first information is used to indicate the terminal to receive the paging message or to initiate random access.

[0131] Embodiments of the present application provide a network device, which is a first network device, comprising a memory, a transceiver and a processor.

[0132] The memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0133] receive an uplink reference signal sent by a terminal;

[0134] send a first information or a paging message to the terminal in a first time window or a first time domain position;

[0135] The first network device includes at least one network device that receives the uplink reference signal and satisfies a first condition, and the first information is used to instruct the terminal to receive a paging message or to instruct the terminal to initiate random access.

[0136] Optionally, the network device that receives the uplink reference signal includes at least one of the following:

[0137] The network device that receives the uplink reference signal with a signal strength greater than or equal to a first threshold;

[0138] The network device that receives the uplink reference signal with a signal quality greater than or equal to a second threshold;

[0139] The network device that successfully demodulates the uplink reference signal.

[0140] Optionally, the first condition includes at least one of the following:

[0141] The network device that receives the uplink reference signal with a signal strength greater than or equal to a third threshold;

[0142] The network device that receives the uplink reference signal with a signal quality greater than or equal to a fourth threshold;

[0143] The network device that successfully demodulates the uplink reference signal.

[0144] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0145] Receive the uplink reference signal sent by the terminal on a first time domain resource; wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal;

[0146] And / or,

[0147] Receive the uplink reference signal sent by the terminal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on a frequency information associated uplink reference signal frequency of the downlink reference signal sent by the first network device.

[0148] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0149] Send first information or a paging message to the terminal on a second frequency domain resource; wherein the second frequency domain resource includes at least one of the following:

[0150] Frequency domain resource for sending and / or receiving a downlink reference signal;

[0151] A frequency domain resource associated with a frequency domain resource used for transmitting and / or receiving a downlink reference signal.

[0152] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0153] If it is determined that there is a paging message for the terminal, a first information or a paging message is sent to the terminal within a first time window or at a first time domain position.

[0154] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0155] In a case where a duration of storing the paging message for the terminal exceeds a first valid duration, the paging message for the terminal is deleted.

[0156] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0157] Within a second valid duration of receiving the uplink reference signal, if the paging message for the terminal is received or arrives, a first information or the paging message is sent to the terminal within the first time window or at the first time domain position.

[0158] Optionally, the first valid duration is determined based on a transmission period of the uplink reference signal or based on a period of terminal listening to a paging message.

[0159] And / or,

[0160] The second valid duration is determined based on a transmission period of the uplink reference signal or based on a period of terminal listening to a paging message.

[0161] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0162] A first message is sent to a management node of the first network device, wherein the first message is used to request the management node to query whether there is a paging message for the terminal.

[0163] In a case where a second message sent by the management node is received, a first information or a paging message is sent to the terminal, wherein the second message is used to indicate that there is a paging message for the terminal, and / or the second message carries the paging message for the terminal.

[0164] Optionally, the first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal received by the first network device.

[0165] And / or,

[0166] The first time domain position is associated with an uplink reference signal sent by the terminal, or is determined based on identification information of the terminal.

[0167] Optionally, the first time window being associated with an uplink reference signal received by the first network device comprises that the first time window is associated with a time of receiving an uplink reference signal last time by the first network device.

[0168] And / or,

[0169] The first time domain position being associated with an uplink reference signal received by the first network device comprises that the first time domain position is associated with a time of receiving an uplink reference signal last time by the first network device.

[0170] Embodiments of the present application provide a network device, the network device being a first network device, comprising:

[0171] a receiving unit configured to receive an uplink reference signal sent by a terminal;

[0172] a sending unit configured to send first information or a paging message to the terminal in a first time window or a first time domain position.

[0173] The first network device comprises at least one network device that receives the uplink reference signal and satisfies a first condition, and the first information is used to instruct the terminal to receive the paging message or to instruct the terminal to initiate random access.

[0174] Embodiments of the present application provide a processor readable storage medium, which stores a computer program, the computer program being used to make the processor execute steps of the paging method as described above.

[0175] Embodiments of the present application provide a computer program product, comprising computer instructions, the computer instructions being executed by a processor to implement steps of the paging method as described above.

[0176] The above technical solutions of the present application have the following beneficial effects:

[0177] In embodiments of the present application, the terminal sends an uplink reference signal, and listens to first information or a paging message sent by a first network device in a first time window after sending the uplink reference signal or in a first time domain position, that is, the first information used to instruct the terminal to receive the paging message or to instruct the terminal to initiate random access is sent to the terminal by the first network device that receives the uplink reference signal and satisfies a first condition, or the paging message is sent, so as to accurately page the terminal and reduce resource and energy waste caused by paging by all network nodes in a paging area. Attached Figure Description

[0178] Figure 1 A flowchart illustrating a paging method on the terminal side according to an embodiment of this application;

[0179] Figure 2 A flowchart illustrating a paging method on the network device side according to an embodiment of this application;

[0180] Figure 3 This is one of the interactive flowcharts illustrating the paging method according to an embodiment of this application;

[0181] Figure 4 The second interactive flowchart illustrating the paging method according to an embodiment of this application;

[0182] Figure 5 The third interactive flowchart illustrating the paging method of this application embodiment;

[0183] Figure 6 The fourth interactive flowchart illustrating the paging method of this application embodiment;

[0184] Figure 7 The fifth interactive flowchart illustrating the paging method of this application embodiment;

[0185] Figure 8 One of the block diagrams representing a terminal according to an embodiment of this application;

[0186] Figure 9 A second block diagram illustrating a terminal according to an embodiment of this application;

[0187] Figure 10 One of the block diagrams illustrating a network device according to an embodiment of this application;

[0188] Figure 11 This is a second block diagram illustrating a network device according to an embodiment of this application. Detailed Implementation

[0189] To make the technical problems, technical solutions, and advantages of this application clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0190] It should be understood that the term "one embodiment" or "an embodiment" as used herein means that a particular feature, structure, or characteristic described is included in at least one embodiment of the application. Therefore, appearances of the phrase "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0191] In various embodiments of the present application, it should be understood that the magnitude of the serial number of the following processes does not mean the order of execution, the execution order of the processes should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0192] In addition, the terms "system" and "network" are often used interchangeably herein.

[0193] The technical solutions provided by the embodiments of the present application can be applied to various systems, especially 5G systems, 6G systems, etc. For example, the applicable systems can be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new radio (NR) systems, 6G systems, etc. Among these various systems, there are terminal devices and network devices. The system can also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), a 6G system, etc.

[0194] The network device and the terminal can each use one or more antennas for multi-input multi-output (MIMO) transmission, which can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). According to the shape and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or can be diversity transmission or precoding transmission or beamforming transmission, etc.

[0195] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship.

[0196] In the embodiments of the present application, the term "a plurality of" means two or more, and other quantifiers are similar.

[0197] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0198] The related technologies involved in the present application will be introduced as follows:

[0199] The UE directly monitors the paging sent by the base station. The UE can use the discontinuous reception (DRX) mode to monitor the paging in the radio resource control idle state (RRC_IDLE) and the radio resource control inactive state (RRC_INACTIVE) to reduce power consumption. The UE monitors one paging occasion (PO) in each DRX cycle. The PO is a set of physical downlink control channel (PDCCH) monitoring occasions, which can be composed of multiple slots (for example, subframes or orthogonal frequency division multiplexing (OFDM) symbols), and the network side can send paging downlink control information (DCI) on the PO. One paging frame (PF) is one radio frame, which can contain one or more POs or the starting point of one PO.

[0200] The PF and PO of the paging are determined by the following formula:

[0201] The system frame number (SFN) of the PF is determined by the following formula:

[0202] (SFN+PF_offset)mod T=(T div N)*(UE_ID mod N)

[0203] The index (Index) i_s indicates the number of the PO, which is determined by the following formula:

[0204] i_s=floor(UE_ID / N)mod Ns

[0205] Wherein, PF_offset is an offset for PF determination;

[0206] T is the DRX cycle. For example, if the DRX cycle of the UE is determined by the shortest one of the UE-specific DRX value and the default DRX value broadcast in the system information, and / or the radio resource control (RRC) signaling and / or the upper layer configuration, then the default DRX value is used if the UE-specific DRX value is not configured by the upper layer when the UE is in the RRC_IDLE state.

[0207] N is the total number of paging frames in T;

[0208] UE_ID is 5G-S-TMSI mod 1024, if the UE does not have a 5G system temporary mobile subscription identifier (5G S-Temporary Mobile Subscription Identifier, 5G-S-TMSI), for example: when the UE has not registered on the network, the UE should use UE ID = 0 as the default identifier in the above PF and i_s formula;

[0209] Ns is the number of paging times of a PF;

[0210] mod represents the modulo operation;

[0211] div represents the integer division operation;

[0212] floor() represents the floor function.

[0213] The embodiments of the present application provide a paging method, a terminal, a network device and a processor readable storage medium, to solve the problem that the current paging method needs the network side to page a UE in a large range, causing waste of resources and energy consumption. The method and the terminal (or the network device) are based on the same application concept, and since the principles of the method and the terminal (or the network device) for solving the problem are similar, the implementation of the method and the terminal (or the network device) can be mutually referred to, and the repeated parts will not be described.

[0214] As shown in Figure 1 The embodiments of the present application provide a paging method, comprising the following steps:

[0215] Step 11: The terminal sends an uplink reference signal.

[0216] Optionally, the terminal can send an uplink reference signal to one or more network devices. The uplink reference signal carries the identification information of the terminal. For example, the identification information of the terminal can uniquely identify the terminal in a certain area (such as: global, national, city, etc.), such as through a serial number corresponding to a terminal ID, etc. The embodiments of the present application are not limited thereto.

[0217] Step 12: In a first time window or a first time domain position, the terminal listens to the first information or the paging message sent by the first network device; wherein the first network device includes at least one network device that receives the uplink reference signal and meets the first condition, and the first information is used to indicate that the terminal receives the paging message or is used to indicate that the terminal initiates random access.

[0218] Optionally, the first time window is configured by the network side device, or based on a protocol agreement, or the first time window is associated with the uplink reference signal sent by the terminal.

[0219] For example, the start position and length of the first time window can be configured by the network side device or agreed based on a protocol, or the start position and end position of the first time window can be configured by the network side device or agreed based on a protocol, and the length of the first time window can include one or more time units, such as a frame, a subframe, a time slot, an OFDM symbol, etc., without being limited thereto.

[0220] For another example, the first time window is associated with the uplink reference signal sent by the terminal, including that the first time window is associated with the sending time of the last uplink reference signal sent by the terminal. For example, the start position of the first time window is a position after a first time length from the sending time of the last uplink reference signal sent by the terminal (optionally, the length of the first time window can be configured by the network side device or agreed based on a protocol, etc.). Optionally, the first time length can be N*the sending period of the uplink reference signal sent by the terminal, or N*the period of the terminal listening to the paging message (N can be a positive integer configured by the network side device or agreed based on a protocol), etc. For example, the terminal can send one or more uplink reference signals, and the first time window can be calculated based on the sending time of the last uplink reference signal sent by the terminal (or the sending time of the last successfully sent uplink reference signal), according to the above rules, without being limited thereto.

[0221] Optionally, the first time domain position can be one or more time points, such as a frame, a subframe, a time slot, an OFDM symbol position, etc.

[0222] For example, the first time domain position is associated with the uplink reference signal sent by the terminal, such as the Nth time slot after the terminal sends the uplink reference signal, N can be a positive integer configured by the network side device or agreed based on a protocol, or the first time domain position is associated with the sending time of the last uplink reference signal sent by the terminal, such as a position after a first time length from the sending time of the last uplink reference signal sent by the terminal. Optionally, the first time length can be N*the sending period of the uplink reference signal sent by the terminal, or N*the period of the terminal listening to the paging message (N can be a positive integer configured by the network side device or agreed based on a protocol), etc. For example, the terminal can send one or more uplink reference signals, and the first time domain position can be calculated based on the sending time of the last uplink reference signal sent by the terminal (or the sending time of the last successfully sent uplink reference signal), according to the above rules, without being limited thereto.

[0223] For another example, the first time domain position can be determined based on the identification information of the terminal, such as calculating according to a predetermined formula based on the identification of the terminal, without being limited thereto.

[0224] For example, the terminal can send an uplink reference signal to one or more network devices, such as the terminal sending the uplink reference signal to K1 network devices. Among them, part (or possibly all) of the K1 network devices can receive the uplink reference signal, such as K2 network devices among the K1 network devices can receive the uplink reference signal. Among them, part (or possibly all) of the K2 network devices can satisfy the second condition, such as K3 network devices among the K2 network devices satisfy the second condition, and the K3 network devices are determined as the first network device. Wherein K1, K2, K3 are positive integers, and K1≥K2≥K3.

[0225] Optionally, the first information is used to indicate that the terminal receives the paging message, and the first information can be paging message indication information; the first information is used to indicate that the terminal initiates random access, and the first information can be uplink scheduling information, such as scheduling uplink resources, and of course the first information can be other types or newly added information types, etc. The embodiments of the present application are not limited thereto.

[0226] In the embodiments of the present application, the terminal sends an uplink reference signal, and listens to the first information or the paging message sent by the first network device within the first time window or the first time domain position after sending the uplink reference signal, that is, the first information used to indicate that the terminal receives the paging message or used to indicate that the terminal initiates random access is sent to the terminal by the first network device receiving the uplink reference signal and satisfying the first condition, or the paging message is sent, so as to accurately page the terminal and reduce the waste of resources and energy caused by paging all network nodes in the paging area.

[0227] Optionally, the network device receiving the uplink reference signal includes at least one of the following types:

[0228] Type 1: network device receiving the uplink reference signal with signal strength greater than or equal to a first threshold;

[0229] Type 2: network device receiving the uplink reference signal with signal quality greater than or equal to a second threshold;

[0230] Type 3: network device successfully demodulating the uplink reference signal.

[0231] Example A1: in the case of network device receiving the uplink reference signal including type 1, if the terminal sends the uplink reference signal to the network device, the signal strength of the uplink reference signal is greater than or equal to the first threshold, that is, the network device can receive the uplink reference signal.

[0232] Example A2: In the case that the network device receiving the uplink reference signal includes Type 2, if the signal quality of the uplink reference signal transmitted by the terminal to the network device is greater than or equal to a second threshold, that is, the network device can receive the uplink reference signal.

[0233] Example A3: In the case that the network device receiving the uplink reference signal includes Type 3, if the network device successfully demodulates the uplink reference signal transmitted by the terminal, that is, the network device can receive the uplink reference signal.

[0234] Example A4: In the case that the network device receiving the uplink reference signal includes Type 1 and Type 2, see the combination of the above examples A1 and A2; in the case that the network device receiving the uplink reference signal includes Type 1 and Type 3, see the combination of the above examples A1 and A3; in the case that the network device receiving the uplink reference signal includes Type 2 and Type 3, see the combination of the above examples A2 and A3; in the case that the network device receiving the uplink reference signal includes Type 1, Type 2 and Type 3, see the combination of the above examples A1, A2 and A3, and the like, the embodiments of the present application are not limited thereto.

[0235] Optionally, the first condition includes at least one of the following cases:

[0236] Case 1: The signal strength of the received uplink reference signal is greater than or equal to a third threshold;

[0237] Case 2: The signal quality of the received uplink reference signal is greater than or equal to a fourth threshold;

[0238] Case 3: The uplink reference signal is successfully demodulated.

[0239] Example B1: If the first condition includes Case 1, the network device receiving the uplink reference signal transmitted by the terminal, if the signal strength of the received uplink reference signal is greater than or equal to the third threshold, determines that the network device satisfies the first condition, that is, the network device belongs to the first network device. Optionally, the third threshold can be greater than or equal to the first threshold.

[0240] Example B2: If the first condition includes Case 2, the network device receiving the uplink reference signal transmitted by the terminal, if the signal quality of the received uplink reference signal is greater than or equal to the fourth threshold, determines that the network device satisfies the first condition, that is, the network device belongs to the first network device. Optionally, the fourth threshold can be greater than or equal to the second threshold.

[0241] Example B3: If the first condition includes case 1 and case 2, refer to the combination of the above example B1 and example B2; if the first condition includes case 1 and case 3, refer to the combination of the above example B1 and example A3; if the first condition includes case 2 and case 3, refer to the combination of the above example B2 and example A3; if the first condition includes case 1, case 2 and case 3, refer to the combination of the above example B1, example B2 and example A3, and the like, but the embodiments of the present application are not limited thereto.

[0242] Optionally, the terminal transmits the uplink reference signal, comprising:

[0243] The terminal transmits the uplink reference signal in a periodic manner.

[0244] And / or,

[0245] The terminal transmits the uplink reference signal when a second condition is met; wherein the second condition includes that the terminal enters a first area, or the terminal changes the first area, or the terminal leaves the first area.

[0246] Optionally, the period of the terminal transmitting the uplink reference signal can be configured by the network side device, or can be based on a protocol agreement (or referred to as a predefined manner, such as: the value of the period of the terminal transmitting the uplink reference signal agreed by the protocol) and the like. Wherein, the period of each terminal transmitting the uplink reference signal can be configured or indicated or agreed individually, or the period of multiple terminals transmitting the uplink reference signal can be configured or indicated or agreed commonly, and the like, such as the period of different terminals transmitting the uplink reference signal can be different, or the period of different terminals transmitting the uplink reference signal can also be the same, and the like, but the embodiments of the present application are not limited thereto.

[0247] Optionally, the first area includes at least one of the following: TA of the terminal, RNA of the terminal, and a pre-set physical area. For example: the pre-set physical area can be a specific geographic area configured by the network side device or based on a protocol agreement, such as a specific city, a specific county, a specific local network coverage area (such as a public place, an office place, a learning place, and the like), and the like, but the embodiments of the present application are not limited thereto.

[0248] Optionally, the terminal determines that the second condition is met by at least one of the following ways:

[0249] The terminal determines that the geographic location of the terminal belongs to a pre-set physical area or that the geographic location of the terminal does not belong to a pre-set physical area based on mobile location positioning.

[0250] The terminal determines, based on the received downlink information, that the network device serving the terminal belongs to the TA of the terminal or that the TA of the terminal is changed.

[0251] The terminal determines, based on the received downlink information, that the network device serving the terminal belongs to the RNA of the terminal or that the RNA of the terminal is changed.

[0252] For example, the second condition includes a case where the terminal enters the first area, and the terminal determines that the second condition is met if the terminal determines, based on mobile location positioning, that the geographical position of the terminal belongs to the pre-set physical area and / or the terminal determines, based on the received downlink information, that the network device serving the terminal belongs to the TA or the RNA of the terminal.

[0253] For another example, the second condition includes a case where the terminal leaves the first area, and the terminal determines that the second condition is met if the terminal determines, based on mobile location positioning, that the geographical position of the terminal does not belong to the pre-set physical area.

[0254] For another example, the second condition includes a case where the terminal changes the first area, and the terminal determines that the second condition is met if the terminal determines, based on the received downlink information, that the TA or the RNA of the terminal is changed.

[0255] Optionally, the downlink information can be high-layer signaling, such as a tracking area code (TAC) or a RAN-area code (RANAC) carried in system information sent by the base station, to learn whether the TA or the RNA of the terminal is changed. Alternatively, the downlink information can be a downlink reference signal sent by the base station, such as a downlink positioning reference signal (DL-PRS) or an aperiodic reference signal (AP-RS) sent by the base station, without being limited in the application embodiments.

[0256] Optionally, the terminal sends the uplink reference signal, including:

[0257] The terminal transmits the uplink reference signal on a first time domain resource; wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal; for example, the first time domain resource can include one or more time units, which can be a frame, a subframe, a time slot, an OFDM symbol, etc. The first time domain resource can be configured by a network side device, or can be determined based on the identification information of the terminal (such as according to the identification of the terminal, calculated according to a specific formula), etc., without being limited thereto.

[0258] and / or,

[0259] The terminal transmits the uplink reference signal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on the frequency information associated with the uplink reference signal frequency of the downlink reference signal received by the terminal; for example, the first frequency domain resource can be configured by a network side device (such as configuration information including frequency, bandwidth, etc.), or the first frequency domain resource (such as frequency) can also be obtained according to the frequency information associated with the uplink reference signal frequency of the downlink reference signal received by the terminal, etc., without being limited thereto.

[0260] Optionally, the terminal listens to the first information or the paging message transmitted by the first network device, including:

[0261] The terminal listens to the first information or the paging message transmitted by the first network device on a second frequency domain resource; wherein the second frequency domain resource includes at least one of the following:

[0262] The frequency domain resource for transmitting and / or receiving the downlink reference signal;

[0263] The frequency domain resource associated with the frequency domain resource for transmitting and / or receiving the downlink reference signal.

[0264] For example, after the terminal transmits the uplink reference signal, it can receive the first information or the paging message on the frequency domain resource for transmitting and / or receiving the downlink reference signal (i.e. the frequency domain resource for transmitting the downlink reference signal by the first network device), or the frequency domain resource associated with the frequency domain resource for transmitting and / or receiving the downlink reference signal (i.e. the frequency domain resource associated with the frequency domain resource for transmitting the downlink reference signal by the first network device). Optionally, the association can be configured by a network side device or based on a protocol agreement, etc., without being limited thereto.

[0265] Optionally, the paging method further includes at least one of the following:

[0266] In the case of listening to the first information indicating that the terminal receives the paging message, the terminal performs paging message listening;

[0267] In a case that the first information indicating the terminal to initiate the random access is monitored, the terminal initiates the random access on the resource scheduled by the first information.

[0268] In a case that the paging message is monitored, the terminal initiates the random access.

[0269] For example, in a case that the first information monitored by the terminal in the first time window or the first time domain position after the uplink reference signal is sent indicates the terminal to receive the paging message, the terminal continues to perform the paging message monitoring, and if the paging message is monitored, the random access process can be initiated. Alternatively, if the terminal does not monitor the paging message, the current state (such as the idle state or the inactive state) can be maintained, or the next uplink reference signal can be waited for, and the application embodiments are not limited in this way.

[0270] For another example, in a case that the first information monitored by the terminal in the first time window or the first time domain position after the uplink reference signal is sent indicates the terminal to initiate the random access, such as the first information being the uplink scheduling information for scheduling the uplink resource, the terminal initiates the random access on the resource scheduled by the first information, so that the process of the first network device sending the paging message or the first information indicating the terminal to receive the paging message can be saved, the signaling overhead can be saved, and the latency can be reduced.

[0271] For another example, in a case that the paging message monitored by the terminal in the first time window or the first time domain position after the uplink reference signal is sent, the terminal can initiate the random access process. Alternatively, if the terminal does not monitor the paging message, the current state (such as the idle state or the inactive state) can be maintained, or the next uplink reference signal can be waited for, and the application embodiments are not limited in this way.

[0272] The terminal referred to in the embodiments of the present application can be a device providing voice and / or data connectivity to users, a handheld device with wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal can also be different, for example, in the 5G system, the terminal can be called UE. The wireless terminal can communicate with one or more core networks (CN) through a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or called "cellular" phone) and a computer with a mobile terminal, for example, it can be a portable, pocket, handheld, built-in computer or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal can also be called system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, which is not limited in the embodiments of the present application.

[0273] As shown in Figure 2 The embodiments of the present application provide a paging method, comprising the following steps:

[0274] Step 21: The first network device receives the uplink reference signal sent by the terminal.

[0275] Optionally, the terminal can send the uplink reference signal to one or more network devices. The uplink reference signal carries the identification information of the terminal. For example: the identification information of the terminal can uniquely identify the terminal in a certain area (such as: global, national, city, etc.), such as the terminal ID corresponding to the serial number, etc., which is not limited in the embodiments of the present application.

[0276] Step 22: In a first time window or a first time domain position, the first network device sends a first information or a paging message to the terminal; wherein the first network device comprises at least one network device receiving the uplink reference signal and satisfying a first condition, and the first information is used to instruct the terminal to receive the paging message or to instruct the terminal to initiate random access.

[0277] Optionally, the first time window is configured by a network side device, or is based on a protocol agreement, or is associated with the uplink reference signal received by the first network device.

[0278] For example, the start position and length of the first time window can be configured by a network side device or based on a protocol agreement, or the start position and end position of the first time window can be configured by a network side device or based on a protocol agreement, etc. The length of the first time window can include one or more time units, such as frames, subframes, time slots, OFDM symbols, etc. The embodiments of the present application are not limited in this regard.

[0279] For another example, the first time window being associated with the uplink reference signal received by the first network device comprises that the first time window is associated with the reception time of the last time the first network device receives the uplink reference signal. For example, the start position of the first time window is the position after a first time length from the reception time of the last time the first network device receives the uplink reference signal (optionally, the length of the first time window can be configured by a network side device or based on a protocol agreement, etc.). Optionally, the first time length can be N*period of sending the uplink reference signal by the terminal or N*period of listening to the paging message by the terminal (N can be a positive integer configured by a network side device or based on a protocol agreement), etc. For example, the terminal can send one or more uplink reference signals, and the first network device can receive one or more uplink reference signals. The first time window can be calculated based on the reception time of the last time the first network device receives the uplink reference signal according to the above rules. The embodiments of the present application are not limited in this regard.

[0280] Optionally, the first time domain position can be one or more time points, such as frame, subframe, time slot, OFDM symbol position, etc.

[0281] For example, the first time domain position is associated with an uplink reference signal sent by the terminal, which can be the Nth time slot after the terminal sends the uplink reference signal, N can be a positive integer configured by the network side device or agreed based on a protocol, or the first time domain position is associated with a receiving time at which the first network device last receives the uplink reference signal, which can be a position after a first time length from the receiving time at which the first network device last receives the uplink reference signal. Optionally, the first time length can be N*transmission period of the terminal sending the uplink reference signal, or N*period of the terminal listening to the paging message (N can be a positive integer configured by the network side device or agreed based on a protocol), etc. For example, the terminal can send one or more uplink reference signals, and the first network device can receive one or more uplink reference signals. The first time domain position can be calculated based on the receiving device of the last uplink reference signal received by the first network device according to the above rules, and the embodiments of the present application are not limited thereto.

[0282] For another example, the first time domain position can be determined based on the identification information of the terminal, such as calculating according to a predetermined formula based on the identification of the terminal, and the embodiments of the present application are not limited thereto.

[0283] For example, the terminal can send an uplink reference signal to one or more network devices, such as sending the uplink reference signal to K1 network devices. Among the K1 network devices, some (or possibly all) can receive the uplink reference signal, such as K2 network devices among the K1 network devices that can receive the uplink reference signal. Among the K2 network devices, some (or possibly all) can satisfy the second condition, such as K3 network devices among the K2 network devices that satisfy the second condition, which are determined as the first network device. Among them, K1, K2, and K3 are positive integers, and K1≥K2≥K3.

[0284] Optionally, the first information can be paging message indication information when the terminal receives the paging message; the first information can be uplink scheduling information, such as scheduling uplink resources, when the terminal initiates random access. Of course, the first information can also be other types or newly added information types, and the embodiments of the present application are not limited thereto.

[0285] In the embodiments of the present application, the first network device receives the uplink reference signal sent by the terminal, and sends the first information or the paging message to the terminal in the first time window or the first time domain position, that is, the first network device that receives the uplink reference signal and meets the first condition sends the first information used for instructing the terminal to receive the paging message or used for instructing the terminal to initiate the random access, or sends the paging message to the terminal, so as to accurately page the terminal and reduce the waste of resources and energy caused by paging by all network nodes in the paging area.

[0286] Optionally, the network device that receives the uplink reference signal includes at least one of the following types:

[0287] Type 1: the network device that receives the uplink reference signal with a signal strength greater than or equal to a first threshold;

[0288] Type 2: the network device that receives the uplink reference signal with a signal quality greater than or equal to a second threshold;

[0289] Type 3: the network device that successfully demodulates the uplink reference signal.

[0290] Example A1: in the case where the network device that receives the uplink reference signal includes Type 1, if the uplink reference signal sent by the terminal is transmitted to the network device, the signal strength of the uplink reference signal is greater than or equal to the first threshold, that is, the network device can receive the uplink reference signal.

[0291] Example A2: in the case where the network device that receives the uplink reference signal includes Type 2, if the uplink reference signal sent by the terminal is transmitted to the network device, the signal quality of the uplink reference signal is greater than or equal to the second threshold, that is, the network device can receive the uplink reference signal.

[0292] Example A3: in the case where the network device that receives the uplink reference signal includes Type 3, if the network device successfully demodulates the uplink reference signal sent by the terminal, that is, the network device can receive the uplink reference signal.

[0293] Example A4: In the case that the network device receiving the uplink reference signal includes type 1 and type 2, please refer to the combination of the above examples A1 and A2; in the case that the network device receiving the uplink reference signal includes type 1 and type 3, please refer to the combination of the above examples A1 and A3; in the case that the network device receiving the uplink reference signal includes type 2 and type 3, please refer to the combination of the above examples A2 and A3; in the case that the network device receiving the uplink reference signal includes type 1, type 2 and type 3, please refer to the combination of the above examples A1, A2 and A3, and the like, the embodiments of the present application are not limited thereto.

[0294] Optionally, the first condition includes at least one of the following cases:

[0295] Case 1: the signal strength of the received uplink reference signal is greater than or equal to a third threshold;

[0296] Case 2: the signal quality of the received uplink reference signal is greater than or equal to a fourth threshold;

[0297] Case 3: the uplink reference signal is successfully demodulated.

[0298] Example B1: If the first condition includes case 1, the network device determines that the network device satisfies the first condition, i.e., the network device belongs to the first network device, if the signal strength of the received uplink reference signal is greater than or equal to the third threshold, in the case that the network device receives the uplink reference signal sent by the terminal. Optionally, the third threshold can be greater than or equal to the first threshold.

[0299] Example B2: If the first condition includes case 2, the network device determines that the network device satisfies the first condition, i.e., the network device belongs to the first network device, if the signal quality of the received uplink reference signal is greater than or equal to the fourth threshold, in the case that the network device receives the uplink reference signal sent by the terminal. Optionally, the fourth threshold can be greater than or equal to the second threshold.

[0300] Example B3: If the first condition includes case 1 and case 2, please refer to the combination of the above examples B1 and B2; if the first condition includes case 1 and case 3, please refer to the combination of the above examples B1 and A3; if the first condition includes case 2 and case 3, please refer to the combination of the above examples B2 and A3; if the first condition includes case 1, case 2 and case 3, please refer to the combination of the above examples B1, B2 and A3, and the like, the embodiments of the present application are not limited thereto.

[0301] Optionally, the first network device receiving the uplink reference signal sent by the terminal includes:

[0302] The first network device receives the uplink reference signal sent by the terminal on a first time domain resource; wherein, the first time domain resource is configured by a network side device, or the first time domain resource is determined based on the identification information of the terminal; for example: the first time domain resource can include one or more time units, which can be a frame, a subframe, a time slot, an OFDM symbol, etc. The first time domain resource can be configured by a network side device, or can be determined based on the identification information of the terminal (such as according to the identification of the terminal, calculated according to a specific formula), etc. The embodiments of the present application are not limited thereto.

[0303] and / or,

[0304] The first network device receives the uplink reference signal sent by the terminal on a first frequency domain resource; wherein, the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on the frequency information of the downlink reference signal sent by the first network device; for example: the first frequency domain resource can be configured by a network side device (such as configuration information including frequency, bandwidth, etc.), or the first frequency domain resource (such as frequency) can also be obtained according to the frequency information of the downlink reference signal sent by the first network device, etc. The embodiments of the present application are not limited thereto.

[0305] Optionally, the first network device sends first information or a paging message to the terminal, including:

[0306] The first network device sends first information or a paging message to the terminal on a second frequency domain resource; wherein, the second frequency domain resource includes at least one of the following:

[0307] The frequency domain resource for sending and / or receiving the downlink reference signal;

[0308] The frequency domain resource associated with the frequency domain resource for sending and / or receiving the downlink reference signal.

[0309] For example, after receiving the uplink reference signal sent by the terminal, the first network device can receive the first information or the paging message on the frequency domain resource for sending and / or receiving the downlink reference signal (i.e. the frequency domain resource for sending the downlink reference signal by the first network device), or the frequency domain resource associated with the frequency domain resource for sending and / or receiving the downlink reference signal (i.e. the frequency domain resource associated with the frequency domain resource for sending the downlink reference signal by the first network device). Optionally, the association can be configured by a network side device or based on a protocol agreement, etc. The embodiments of the present application are not limited thereto.

[0310] Optionally, the first network device sends the first information or the paging message to the terminal in a first time window or a first time domain position.

[0311] If the first network device determines that there is the paging message for the terminal, the first network device sends the first information or the paging message to the terminal in a first time window or a first time domain position.

[0312] For example, the core network element can send the paging message for the terminal to all network devices (e.g., a transmission and receiving point (TRP) or a management node of the network device (e.g., a centralized unit (CU) or a distributed unit (DU) of an access network, etc.)) in an area where the terminal is located (a TA where the UE in an IDLE state or an RNA where the UE in an INACTIVE state is located). Optionally, the management node of the network device can send the paging message for the terminal to the network device (e.g., a TRP, etc.) managed thereby.

[0313] For example, the first network device can store the paging message for the terminal issued by the core network element, thereby being able to know whether there is the paging message for the terminal; or if the first network node does not support storing the paging message for the terminal, the first network node can determine whether there is the paging message for the terminal by querying the management node. In this way, the first network device can determine whether the first information or the paging message needs to be sent to the terminal based on whether the first network device has the paging message for the terminal or the management node has the paging message for the terminal. For example, the first network device sends the first information or the paging message to the terminal only in a case where the first network device determines that there is the paging message for the terminal (i.e., there is data or signaling, etc. to be sent, and the terminal needs to be paged so as to enter a connected state). Optionally, the first network device does not need to send the first information or the paging message to the terminal in a case where the first network device determines that there is no paging message for the terminal (e.g., there is no data or signaling, etc. to be sent, or paging for the terminal is timed out or invalid).

[0314] Optionally, the paging method further includes:

[0315] In a case where a duration for which the first network device stores the paging message for the terminal exceeds (i.e., is greater than or equal to) a first valid duration, the paging message for the terminal is deleted.

[0316] For example, the first network device can be a TRP and / or a TRP management node, and the first network device supports storing and maintaining a paging message to be sent. For example, a valid time length can be configured for the paging message to be sent, and paging messages with a storage time length greater than or equal to the valid time length are deleted to ensure real-time and effective paging for the terminal.

[0317] Optionally, the first valid time length is determined based on a transmission period of the uplink reference signal or based on a period at which the terminal listens to the paging message. For example, the first valid time length = N*the transmission period of the uplink reference signal transmitted by the terminal, or the first valid time length = N*the period at which the terminal listens to the paging message, N being a positive integer.

[0318] Optionally, the first network device sends the first information or the paging message to the terminal within the first time window or at the first time domain position, including:

[0319] The first network device, within the second valid time length of receiving the uplink reference signal, if receiving the paging message of the terminal or having the paging message of the terminal arrive, sends the first information or the paging message to the terminal within the first time window or at the first time domain position.

[0320] For example, the terminal can send one or more uplink reference signals, and the first network device can receive one or more uplink reference signals. The start position of the second valid time length can be calculated based on the reception time of the last time the first network device receives the uplink reference signal sent by the terminal, for example, the first network device starts a timer at the reception time of the last time the first network device receives the uplink reference signal sent by the terminal (the timing duration of the timer is the second valid time length). Before the timer expires, if the paging message of the terminal is received or the paging message of the terminal arrives, the first information or the paging message is sent to the terminal within the first time window or at the first time domain position.

[0321] Optionally, the second valid time length (or timer) is determined based on a transmission period of the uplink reference signal or based on a period at which the terminal listens to the paging message. For example, the second valid time length = N*the transmission period of the uplink reference signal transmitted by the terminal, or the second valid time length = N*the period at which the terminal listens to the paging message, N being a positive integer.

[0322] Optionally, the first network device sends the first information or the paging message to the terminal, including:

[0323] The first network device sends a first message to a management node of the first network device, wherein the first message is used to request the management node to query whether there is a paging message of the terminal.

[0324] In a case where the second message sent by the management node is received, the first network device sends the first information or a paging message to the terminal; wherein the second message is used to indicate that there is a paging message of the terminal, and / or the second message carries the paging message of the terminal.

[0325] For example, in a case where the first network device is a TRP or other network node, and the first network device does not support storing and maintaining the paging message to be sent, but the management node stores and maintains the paging message to be sent, after receiving the uplink reference signal of the terminal, the first network device can query the management node to confirm whether there is a paging message of the terminal, if the management node feeds back that there is a paging message of the terminal (for example, the management node can carry the paging message of the terminal in the feedback second message, or can also use a separate signaling to carry the paging message of the terminal, etc.), then the first network device will send the first information or the paging message to the terminal. Alternatively, if the management node feeds back that there is no paging message of the terminal, the first network device does not need to send the first information or the paging message to the terminal.

[0326] The network device according to the embodiments of the present application can be a base station, which can include a plurality of cells serving terminals. According to different application scenarios, the base station can also be referred to as an access point, or can be a device in an access network that communicates with wireless terminals through one or more sectors over an air interface, or other names. The network device can be used to exchange received air frames and Internet Protocol (IP) packets as a router between wireless terminals and the rest of the access network, which can include an Internet Protocol (IP) communication network. The network device can also coordinate the management of the properties of the air interface. For example, the network device according to the embodiments of the present application can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (LTE) system, or a 5G base station (gNB) in a next generation system, or a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present application are not limited. In some network structures, the network device can include a CU node and a DU node, and the centralized unit and the distributed unit can also be arranged geographically apart.

[0327] The interaction process of the paging method according to the embodiments of the present application is described below in combination with specific embodiments:

[0328] Embodiment 1: The IDLE state UE receives a paging message, and starts a timer based on the paging message.

[0329] The TA area of UE1 is TA1, which includes TRP1-10. As shown in the figure, the specific process includes: Figure 3

[0330] Step 31: UE1 sends an uplink RS at T1 based on Discontinuous Transmission (DTX) or DRX configuration. ​

[0331] TRP2 receives the uplink RS of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold. Since TRP2 does not store the paging message of UE1, UE1 does not receive the paging in the first time window or the first time domain position, and enters a non-transmitting state (for example, the current IDLE state can be maintained).

[0332] Step 32: UE1 sends the uplink RS at T2 based on the DTX or DRX configuration.

[0333] TRP1 receives the uplink RS of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold. Since TRP1 does not store the paging message of UE1, UE1 does not receive the paging in the listening time window, and enters a non-transmitting state (for example, the current IDLE state can be maintained).

[0334] Step 33: The core network element sends the paging message of UE1 to all TRPs (for example, TRP1-10) in TA1 where UE1 is located.

[0335] All TRPs (for example, TRP1-10) in TA1 start the paging message invalidation timer of UE1 respectively (for example, the valid time length of the timer is a first valid time length), that is, in the case that the paging message invalidation timer expires (that is, the time length that the TRP stores the paging message of UE1 exceeds the first valid time length), the paging message of UE1 is deleted.

[0336] Optionally, the paging message invalidation timer or the first valid time length is determined based on the period of sending the uplink reference signal of the terminal or based on the period of listening to the paging message of the terminal.

[0337] It should be noted that when the core network element sends the paging message, the paging message can be sent to each TRP, or can be sent to an intermediate network element (for example, a CU), and the intermediate network element generates the paging message of the access network and sends it to each TRP. The process is not described again in the embodiments of the application.

[0338] Step 34: UE1 sends the uplink RS at T3 based on the DTX or DRX configuration.

[0339] Before the paging message invalidation timer expires, TRP1 receives the uplink RS of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold.

[0340] Optionally, if TRP1 starts a paging message invalid timer for UE1, and receives an uplink RS reference signal of UE1 before the paging message invalid timer expires, the paging message invalid timer can be stopped. Step 35: TRP1 stores the paging message of UE1, and then TRP1 sends the paging message to UE1 in the first time window or the first time domain position.

[0341] Optionally, the sending mode of the paging message can be that TRP1 first sends a downlink RS to UE1 in the first time window or the first time domain position, the downlink RS instructs UE1 to listen to PDCCH, and then the paging message is sent through PDCCH scheduling physical downlink shared channel (PDSCH). Or it can also be that TRP1 first sends PDCCH scheduling PDSCH to send the paging message to UE1 in the first time window or the first time domain position. The difference between the two modes is whether UE1 only listens to the downlink RS or listens to the PDCCH in the first time window or the first time domain position.

[0342] Step 36: UE1 receives the paging message and initiates an access request to TRP1.

[0343] Embodiment 2: IDLE state UE receives a paging message and starts a timer based on an uplink reference signal.

[0344] The TA area of UE1 is TA1, which includes TRP1-10. As shown in the figure, the specific process includes: Figure 4

[0345] Step 41: UE1 sends an uplink RS based on discontinuous transmission (DTX) or DRX configuration at T1.

[0346] TRP2 receives the uplink RS of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold. TRP2 stores the ID of UE1 and starts an invalid timer (for example, the valid duration of the timer is a second valid duration).

[0347] Optionally, the invalid timer or the second valid duration is determined based on the period of the terminal sending the uplink reference signal, or based on the period of the terminal listening to the paging message.

[0348] Step 42: UE1 sends an uplink RS based on DTX or DRX configuration at T2.

[0349] ​TRP1 receives the uplink RS of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold. TRP1 stores the ID of UE1, and starts a failure timer (for example, the valid duration of the timer is a second valid duration).

[0350] Optionally, the failure timer or the second valid duration is determined based on a period of sending the uplink reference signal by the terminal, or is determined based on a period of listening to the paging message by the terminal.

[0351] Step 43: Before the failure timers started by TRP1 and TRP2 expire, the core network element sends a paging message of UE1 to all TRPs (for example, TRP1-10) in TA1 where UE1 is located.

[0352] It should be noted that when the core network element sends the paging message, the paging message can be sent to each TRP, or can be sent to an intermediate network element (for example, a CU), and the intermediate network element generates a paging message of the access network and sends the paging message to each TRP. The process is not described again in the embodiments of the present application.

[0353] Step 44: Since the failure timers started by TRP1 and TRP2 have not expired, and the paging message of UE1 is received, TRP1 and TRP2 respectively send the paging message to UE1.

[0354] Optionally, the sending mode of the paging message can be that TRP1 and TRP2 first send a downlink RS to UE1 in a first time window or a first time domain position, the downlink RS indicates that UE1 listens to a PDCCH, and then the PDCCH schedules a physical downlink shared channel (PDSCH) to send the paging message. Or it can also be that TRP1 first sends the PDCCH scheduling the PDSCH to send the paging message in the first time window or the first time domain position. The difference between the two modes is whether UE1 only listens to the downlink RS or listens to the PDCCH in the first time window or the first time domain position.

[0355] Optionally, in the case where the failure timer expires (that is, the duration of receiving the uplink RS exceeds the second valid duration), TRP2 and TRP1 do not receive the paging message of UE1 or the paging message of UE1 does not arrive, and UE1 does not receive the paging in the first time window or the first time domain position, and enters a non-transmitting state (for example, the current IDLE state can be maintained).

[0356] Step 35: UE1 receives the paging message and initiates an access request to TRP1.

[0357] Embodiment 3: INACTIVE state UE receives a paging message.

[0358] The RNA of the UE1 is RNA1, which includes TRP1-4. As shown, the specific process includes: Figure 5

[0359] Step 51: The UE1 sends an uplink RS at T1 based on the DTX or DRX configuration.

[0360] The TRP3 and the TRP4 receive the uplink RS of the UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold.

[0361] Since the TRP3 and the TRP4 do not store the paging message of the UE1, the UE1 does not receive the paging in the first time window or the first time domain position, and enters a non-transmitting state (such as maintaining the current INACTIVE state).

[0362] Step 52: The UE1 sends an uplink RS at T2 based on the DTX or DRX configuration.

[0363] The TRP2 receives the uplink RS of the UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold. Since the TRP2 does not store the paging message of the UE1, the UE1 does not receive the paging in the first time window or the first time domain position, and enters a non-transmitting state (such as maintaining the current INACTIVE state).

[0364] Steps 53a-53d: The access network element sends the paging message of the UE1 to all TRPs (i.e., TRP1-4) in the RNA1 where the UE1 is located.

[0365] All TRPs (such as TRP1-4) in the TA1 start a paging message invalidation timer of the UE1 (such as the effective duration of the timer is a first effective duration) respectively, that is, in the case that the paging message invalidation timer expires (i.e., the duration that the TRP stores the paging message of the UE1 exceeds the first effective duration), the paging message of the UE1 is deleted.

[0366] Optionally, the paging message invalidation timer or the first effective duration is determined based on the period of sending the uplink reference signal of the terminal or based on the period of listening to the paging message of the terminal.

[0367] Step 54: The UE1 sends an uplink RS at T3 based on the DTX or DRX configuration.

[0368] The TRP1 and the TRP2 receive the uplink RS of the UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold.

[0369] ​Step 55a and step 55b: TRP1 and TRP2 store the paging message of UE1, and the paging message invalidation timer of TRP1 and TRP2 does not expire, then TRP1 and TRP2 stop the paging message invalidation timer, and each sends the paging message to UE1 within the first time window or the first time domain position.

[0370] Optionally, the sending mode of the paging message can be that TRP1 and TRP2 first send a downlink RS to UE1 within the first time window or the first time domain position, the downlink RS indicating that UE1 listens to PDCCH, and then sends the paging message through PDCCH scheduling PDSCH. Or it can also be that TRP1 and TRP2 first send PDCCH scheduling PDSCH to send the paging message to UE1 within the first time window or the first time domain position. The difference between the two modes is whether UE1 only listens to the downlink RS or listens to the PDCCH within the first time window or the first time domain position.

[0371] Step 56: UE1 receives the paging message, and initiates an access request to TRP1 according to the downlink received signal strength.

[0372] Embodiment 4: The paging message is stored in the DU.

[0373] The TA area of UE1 is TA1, including TRP1-10. Among them, TRP1-5 belong to DU1, and TRP6-10 belong to DU2. As shown in the figure, the specific process includes: Figure 6

[0374] Step 61: UE1 sends an uplink RS at T1 based on the DTX or DRX configuration.

[0375] TRP2 receives the uplink RS signal of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold.

[0376] Step 62: TRP2 queries DU1 whether there is a paging message of UE1.

[0377] Step 63: DU1 feeds back to TRP2 that there is no paging message of UE1.

[0378] UE1 does not receive the paging message within the first time window or the first time domain position, and enters a non-transmitting state.

[0379] Step 64: The core network element sends the paging message of UE1 to all DUs (i.e. DU1 and DU2) in the TA1 where UE1 is located.

[0380] ​All DUs in TA1 (i.e. DU1 and DU2) start a paging message invalid timer (e.g. with a first valid duration) for UE1, and delete the paging message for UE1 if the paging message invalid timer expires (i.e. the duration of storing the paging message for UE1 exceeds the first valid duration).

[0381] Optionally, the paging message invalid timer or the first valid duration is determined based on a period of sending uplink reference signals by the terminal, or based on a period of listening to paging messages by the terminal.

[0382] It should be noted that when the core network element sends the paging message, it can be sent to each DU, or it can be sent to an intermediate network element (e.g. CU), and the intermediate network element generates the paging message of the access network and sends it to each DU. The process is not described again in the embodiments of the present application.

[0383] Step 65: UE1 sends uplink RS at T2 based on DTX or DRX configuration.

[0384] TRP1 receives the uplink RS of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold.

[0385] Step 66: TRP1 queries DU1 whether there is a paging message for UE1.

[0386] Step 67: If the paging message invalid timer of DU1 has not expired, DU1 stops the paging message invalid timer, feeds back to TRP1 that there is a paging message for UE1, and sends the paging message for UE1 to TRP1.

[0387] Step 68: TRP1 sends a paging message to UE1 within a first time window or at a first time domain position.

[0388] Step 69: UE1 receives the paging message and initiates an access request to TRP1.

[0389] Embodiment 5: TRP directly schedules uplink resources of an IDLE state UE.

[0390] TA area of UE1 is TA1, which includes TRP1-10. As shown in the figure, the specific process includes: Figure 7

[0391] Step 71: UE1 sends uplink RS at T1 based on DTX or DRX configuration.

[0392] ​TRP2 receives the uplink RS of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold. Since TRP2 does not store the paging message of UE1, UE1 does not receive the paging in the first time window or the first time domain position, and enters a non-transmitting state (for example, the current IDLE state can be maintained).

[0393] Step 72: UE1 sends the uplink RS at T2 based on the DTX or DRX configuration.

[0394] TRP1 receives the uplink RS of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold. Since TRP1 does not store the paging message of UE1, UE1 does not receive the paging in the listening time window, and enters a non-transmitting state (for example, the current IDLE state can be maintained).

[0395] Step 73: The core network element sends the paging message of UE1 to all TRPs (for example, TRP1-10) in TA1 where UE1 is located.

[0396] All TRPs (for example, TRP1-10) in TA1 start the paging message invalid timer of UE1 respectively (for example, the valid time length of the timer is a first valid time length), that is, in the case that the paging message invalid timer expires (that is, the time length that the TRP stores the paging message of UE1 exceeds the first valid time length), the paging message of UE1 is deleted.

[0397] Optionally, the paging message invalid timer or the first valid time length is determined based on the period of sending the uplink reference signal of the terminal or based on the period of listening to the paging message of the terminal.

[0398] It should be noted that when the core network element sends the paging message, the paging message can be sent to each TRP, or the paging message can be sent to an intermediate network element (for example, a CU), and the intermediate network element generates the paging message of the access network and sends it to each TRP. The process is not described again in the embodiments of the application.

[0399] Optionally, the core network element in the embodiments of the application can also not send the paging message, for example, an indication of instructing each TRP or an intermediate network element (for example, a CU) to page the terminal.

[0400] Step 74: UE1 sends the uplink RS at T3 based on the DTX or DRX configuration.

[0401] Before the paging message invalid timer expires, TRP1 receives the uplink RS of UE1, and the received signal strength is greater than or equal to a third threshold and / or the received signal quality is greater than or equal to a fourth threshold.

[0402] Optionally, if TRP1 starts the paging message failure timer for UE1 and receives the uplink RS reference signal from UE1 before the paging message failure timer expires, the paging message failure timer can be stopped.

[0403] Step 75: If TRP1 stores the paging message of UE1, then TRP1 sends uplink scheduling information to UE1 within the first time window or at the first time domain position.

[0404] For example, TRP1 sends uplink scheduling information (such as PDCCH) to UE1 in the first time window or the first time domain position, and schedules PDSCH to send access request, while TRP1 does not need to send paging message to UE1.

[0405] Step 76: UE1 receives uplink scheduling information and initiates an access request using the scheduled resources.

[0406] In the above embodiments, the network device can achieve accurate paging of the terminal, thereby reducing the waste of resources and energy caused by the network-side device not knowing the location of the UE and having to send invalid paging over a large area.

[0407] The above embodiments describe the paging method of this application. The following embodiments will further describe the corresponding terminals and network devices in conjunction with the accompanying drawings.

[0408] like Figure 8 As shown, this application embodiment provides a terminal, including a memory 81, a transceiver 82, and a processor 83; wherein, the memory 81 is used to store computer programs; the transceiver 82 is used to send and receive data under the control of the processor 83; for example, the transceiver 82 is used to receive and send data under the control of the processor 83; the processor 83 is used to read the computer program in the memory 81 and perform the following operations:

[0409] Send uplink reference signal;

[0410] Within the first time window or at the first time domain location, listen for the first information or paging message sent by the first network device;

[0411] The first network device includes at least one network device that receives the uplink reference signal and satisfies the first condition. The first information is used to instruct the terminal to receive a paging message or to instruct the terminal to initiate random access.

[0412] Optionally, the network device receiving the uplink reference signal includes at least one of the following:

[0413] A network device that receives the uplink reference signal with a signal strength greater than or equal to a first threshold;

[0414] a network device receiving the uplink reference signal with a signal quality greater than or equal to a second threshold;

[0415] a network device successfully demodulating the uplink reference signal.

[0416] Optionally, the first condition comprises at least one of:

[0417] a signal strength of the uplink reference signal received by the network device being greater than or equal to a third threshold;

[0418] a signal quality of the uplink reference signal received by the network device being greater than or equal to a fourth threshold;

[0419] a network device successfully demodulating the uplink reference signal.

[0420] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0421] transmitting the uplink reference signal in a periodic manner;

[0422] and / or,

[0423] transmitting the uplink reference signal in a case where a second condition is met; wherein the second condition comprises: the terminal entering a first area, or the terminal changing a first area, or the terminal leaving a first area.

[0424] Optionally, the first area comprises at least one of:

[0425] a TA of a terminal;

[0426] an RNA of a terminal;

[0427] a pre-set physical area.

[0428] Optionally, the processor is configured to read a computer program in the memory and perform at least one of the following to determine that the second condition is met:

[0429] determining, based on mobile location positioning, that a geographical position of the terminal belongs to a pre-set physical area, or determining that the geographical position of the terminal does not belong to the pre-set physical area;

[0430] determining, based on received downlink information, that a network device serving the terminal belongs to a TA of the terminal, or determining to change the TA of the terminal;

[0431] determining, based on received downlink information, that a network device serving the terminal belongs to an RNA of the terminal, or determining to change the RNA of the terminal.

[0432] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0433] transmit the uplink reference signal on a first time domain resource; wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal;

[0434] and / or,

[0435] transmit the uplink reference signal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on an uplink reference signal frequency associated with frequency information of a downlink reference signal received by the terminal.

[0436] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0437] monitor first information or a paging message transmitted by the first network device on a second frequency domain resource; wherein the second frequency domain resource comprises at least one of the following:

[0438] a frequency domain resource for transmitting and / or receiving a downlink reference signal;

[0439] a frequency domain resource associated with a frequency domain resource for transmitting and / or receiving a downlink reference signal.

[0440] Optionally, the processor is configured to read a computer program in the memory and perform at least one of the following operations:

[0441] in a case where the first information indicating that the terminal receives a paging message is monitored, perform paging message monitoring;

[0442] in a case where the first information indicating that the terminal initiates random access is monitored, initiate random access on a resource scheduled by the first information;

[0443] in a case where the paging message is monitored, initiate random access.

[0444] Optionally, the first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal transmitted by the terminal;

[0445] and / or,

[0446] the first time domain position is associated with an uplink reference signal transmitted by the terminal, or is determined based on identification information of the terminal.

[0447] Optionally, the first time window is associated with an uplink reference signal sent by the terminal, including that the first time window is associated with a sending time of the last uplink reference signal sent by the terminal.

[0448] and / or,

[0449] The first time domain position is associated with an uplink reference signal sent by the terminal, including that the first time domain position is associated with a sending time of the last uplink reference signal sent by the terminal.

[0450] In the above-mentioned embodiments, the first time window is associated with an uplink reference signal sent by the terminal, including that the first time window is associated with a sending time of the last uplink reference signal sent by the terminal. Figure 8 The bus architecture can include any number of interconnecting buses and bridges, depending on the specific application of the processor 83, and the various circuits linked by the buses and bridges, which represent one or more processors and the memory represented by the memory 81. The bus architecture can also link various other circuits such as peripheral devices, voltage stabilizers and power management circuits, which are well known in the art, and therefore, will not be further described herein. The bus interface provides an interface. The transceiver 82 can be a plurality of elements, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices on transmission media, including wireless channels, wired channels, optical cables, etc. The user interface 84 can also be an interface capable of connecting external and internal required devices for different user devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0451] The processor 83 is responsible for managing the bus architecture and general processing, and the memory 81 can store data used by the processor 83 in performing operations.

[0452] Optionally, the processor 83 can be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.

[0453] The processor executes any of the methods provided by the embodiments of the present application according to the executable instructions obtained by calling the computer program stored in the memory. The processor and the memory can also be physically arranged separately.

[0454] It should be noted that the terminal provided by the embodiment of the present application can realize all the method steps achieved by the terminal side paging method embodiment, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiment will not be described in detail.

[0455] As shown in Figure 9 The embodiment of the present application provides a terminal 900, which comprises:

[0456] The sending unit 910 is configured to send an uplink reference signal.

[0457] The monitoring unit 920 is configured to monitor first information or a paging message sent by a first network device in a first time window or a first time domain position.

[0458] The first network device comprises at least one network device that receives the uplink reference signal and satisfies a first condition, and the first information is used to indicate that the terminal receives the paging message or is used to indicate that the terminal initiates random access.

[0459] Optionally, the network device that receives the uplink reference signal comprises at least one of the following:

[0460] The network device that receives the uplink reference signal with a signal strength greater than or equal to a first threshold;

[0461] The network device that receives the uplink reference signal with a signal quality greater than or equal to a second threshold;

[0462] The network device that successfully demodulates the uplink reference signal.

[0463] Optionally, the first condition comprises at least one of the following:

[0464] The signal strength of the uplink reference signal is greater than or equal to a third threshold;

[0465] The signal quality of the uplink reference signal is greater than or equal to a fourth threshold;

[0466] The uplink reference signal is successfully demodulated.

[0467] Optionally, the sending unit 910 is further configured to:

[0468] Send the uplink reference signal in a periodic manner;

[0469] And / or,

[0470] Send the uplink reference signal under the condition that a second condition is met; wherein the second condition comprises that the terminal enters a first area, or the terminal changes the first area, or the terminal leaves the first area.

[0471] Optionally, the first area comprises at least one of:

[0472] a tracking area (TA) of the terminal;

[0473] a notification area (RNA) of an access network of the terminal;

[0474] a pre-configured physical area.

[0475] Optionally, the terminal determines that the second condition is satisfied by at least one of:

[0476] determining, based on mobile location positioning, that a geographical position of the terminal belongs to a pre-configured physical area or that the geographical position of the terminal does not belong to the pre-configured physical area;

[0477] determining, based on received downlink information, that a network device serving the terminal belongs to a TA of the terminal or that the TA of the terminal is changed;

[0478] determining, based on received downlink information, that a network device serving the terminal belongs to an RNA of the terminal or that the RNA of the terminal is changed.

[0479] Optionally, the sending unit 910 is further configured to:

[0480] send the uplink reference signal on a first time domain resource, wherein the first time domain resource is configured by a network side device or the first time domain resource is determined based on identification information of the terminal;

[0481] and / or,

[0482] send the uplink reference signal on a first frequency domain resource, wherein the first frequency domain resource is configured by a network side device or the first frequency domain resource is determined based on a frequency information associated uplink reference signal frequency of a downlink reference signal received by the terminal.

[0483] Optionally, the monitoring unit 920 is further configured to:

[0484] monitor first information or a paging message sent by the first network device on a second frequency domain resource, wherein the second frequency domain resource comprises at least one of:

[0485] a frequency domain resource for sending and / or receiving a downlink reference signal;

[0486] a frequency domain resource associated with a frequency domain resource for sending and / or receiving a downlink reference signal.

[0487] Optionally, the terminal 900 further comprises at least one of:

[0488] a first processing unit, configured to perform paging message monitoring in a case that first information indicating that a terminal receives a paging message is monitored;

[0489] a second processing unit, configured to initiate random access on a resource scheduled by the first information in a case that the first information indicating that the terminal initiates random access is monitored;

[0490] a third processing unit, configured to initiate random access in a case that the paging message is monitored.

[0491] Optionally, the first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal sent by the terminal;

[0492] and / or,

[0493] The first time domain position is associated with an uplink reference signal sent by the terminal, or is determined based on identification information of the terminal.

[0494] Optionally, the first time window being associated with the uplink reference signal sent by the terminal includes that the first time window is associated with a sending time of the terminal sending an uplink reference signal last time;

[0495] and / or,

[0496] The first time domain position being associated with the uplink reference signal sent by the terminal includes that the first time domain position is associated with a sending time of the terminal sending an uplink reference signal last time.

[0497] It should be noted that the above terminal provided by the embodiments of the present application can realize all the method steps realized by the paging method embodiments on the terminal side, and can achieve the same technical effects, and the same parts and beneficial effects of the method embodiments in the embodiments will not be described in detail.

[0498] As shown in Figure 10 The embodiments of the present application provide a network device, such as the first network device in the above embodiments, which includes a memory 101, a transceiver 102, and a processor 103; wherein the memory 101 is used to store computer programs; the transceiver 102 is used to transceive data under the control of the processor 103; such as the transceiver 102 is used to receive and send data under the control of the processor 103; the processor 103 is used to read the computer programs in the memory 101 and perform the following operations:

[0499] receiving an uplink reference signal sent by a terminal;

[0500] transmit, to the terminal, first information or a paging message in a first time window or a first time domain location;

[0501] The first network device includes at least one network device that receives the uplink reference signal and satisfies a first condition, and the first information is used to instruct the terminal to receive a paging message or to instruct the terminal to initiate random access.

[0502] Optionally, the network device that receives the uplink reference signal includes at least one of the following:

[0503] A network device that receives the uplink reference signal with a signal strength greater than or equal to a first threshold;

[0504] A network device that receives the uplink reference signal with a signal quality greater than or equal to a second threshold;

[0505] A network device that successfully demodulates the uplink reference signal.

[0506] Optionally, the first condition includes at least one of the following:

[0507] A signal strength greater than or equal to a third threshold;

[0508] A signal quality greater than or equal to a fourth threshold;

[0509] Successful demodulation of the uplink reference signal.

[0510] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0511] Receive the uplink reference signal transmitted by the terminal on a first time domain resource; wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal;

[0512] And / or,

[0513] Receive the uplink reference signal transmitted by the terminal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on a frequency information associated uplink reference signal frequency of the downlink reference signal transmitted by the first network device.

[0514] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0515] Transmit, to the terminal, first information or a paging message on a second frequency domain resource; wherein the second frequency domain resource includes at least one of the following:

[0516] A frequency domain resource for transmitting and / or receiving a downlink reference signal;

[0517] A frequency domain resource associated with a frequency domain resource for transmitting and / or receiving a downlink reference signal.

[0518] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0519] If it is determined that there is a paging message of the terminal, a first information or a paging message is sent to the terminal within a first time window or a first time domain position.

[0520] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0521] In a case where a duration of storing the paging message of the terminal exceeds a valid duration, the paging message of the terminal is deleted.

[0522] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0523] Within a second valid duration of receiving the uplink reference signal, if the paging message of the terminal is received or arrives, a first information or the paging message is sent to the terminal within the first time window or the first time domain position.

[0524] Optionally, the first valid duration is determined based on a transmission period of the uplink reference signal, or based on a period of terminal listening to a paging message;

[0525] And / or,

[0526] The second valid duration is determined based on a transmission period of the uplink reference signal, or based on a period of terminal listening to a paging message.

[0527] Optionally, the processor is configured to read a computer program in the memory and perform the following operations:

[0528] A first message is sent to a management node of the first network device; wherein the first message is used to request the management node to query whether there is a paging message of the terminal;

[0529] In a case where a second message sent by the management node is received, a first information or a paging message is sent to the terminal; wherein the second message is used to indicate that there is a paging message of the terminal, and / or the second message carries the paging message of the terminal.

[0530] Optionally, the first time window is configured by the network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal received by the first network device.

[0531] and / or,

[0532] The first time domain position is associated with an uplink reference signal received by the first network device, or is determined based on identification information of the terminal.

[0533] Optionally, the first time window being associated with an uplink reference signal received by the first network device comprises that the first time window is associated with a receiving time of the last time when the first network device receives an uplink reference signal.

[0534] and / or,

[0535] The first time domain position being associated with an uplink reference signal received by the first network device comprises that the first time domain position is associated with a receiving time of the last time when the first network device receives an uplink reference signal.

[0536] Wherein, in Figure 10 The bus architecture can include any number of interconnecting buses and bridges, and the various circuitry representative of the processor(s) 103 and the memory 101, which are linked together by the bus architecture, are provided by various circuitry. The bus architecture can also link various other circuitry, such as peripheral devices, voltage regulators, and power management circuitry, which are well known in the art, and therefore, will not be described further. The bus interface provides an interface. The transceiver 102 can be a plurality of elements, i.e., including a transmitter and a receiver, which provides a unit for communicating with various other devices on transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 103 is responsible for managing the bus architecture and general processing, and the memory 101 can store data used by the processor 103 in performing operations.

[0537] The processor 103 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.

[0538] It should be noted that the network device provided by the embodiment of the present application can realize all the method steps achieved by the first network device side paging method embodiment, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiment will not be described in detail.

[0539] As shown in Figure 11 The network device 1100 provided by the embodiment of the present application is a first network device, which comprises:

[0540] The receiving unit 1111 is configured to receive an uplink reference signal sent by a terminal.

[0541] The sending unit 1120 is configured to send first information or a paging message to the terminal within a first time window or at a first time domain position.

[0542] The first network device comprises at least one network device that receives the uplink reference signal and satisfies a first condition, and the first information is used to instruct the terminal to receive a paging message or to instruct the terminal to initiate random access.

[0543] Optionally, the network device that receives the uplink reference signal comprises at least one of the following:

[0544] A network device that receives the uplink reference signal with a signal strength greater than or equal to a first threshold;

[0545] A network device that receives the uplink reference signal with a signal quality greater than or equal to a second threshold;

[0546] A network device that successfully demodulates the uplink reference signal.

[0547] Optionally, the first condition comprises at least one of the following:

[0548] A signal strength greater than or equal to a third threshold;

[0549] A signal quality greater than or equal to a fourth threshold;

[0550] Successful demodulation of the uplink reference signal.

[0551] Optionally, the receiving unit 1111 is further configured to:

[0552] Receive the uplink reference signal sent by the terminal on a first time domain resource, wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal.

[0553] And / or,

[0554] receive the uplink reference signal sent by the terminal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on a frequency information associated uplink reference signal frequency of a downlink reference signal sent by the first network device.

[0555] Optionally, the sending unit 1120 is further used for:

[0556] send first information or a paging message to the terminal on a second frequency domain resource; wherein the second frequency domain resource comprises at least one of the following:

[0557] a frequency domain resource for sending and / or receiving a downlink reference signal;

[0558] a frequency domain resource associated with a frequency domain resource for sending and / or receiving a downlink reference signal.

[0559] Optionally, the sending unit 1120 is further used for:

[0560] if it is determined that there is a paging message of the terminal, send first information or a paging message to the terminal within a first time window or at a first time domain position.

[0561] Optionally, the network device 1100 further comprises:

[0562] a processing unit, configured to delete a paging message of the terminal if a duration for storing the paging message of the terminal exceeds a valid duration.

[0563] Optionally, the sending unit 1120 is further used for:

[0564] if the paging message of the terminal is received or arrives within a second valid duration for receiving the uplink reference signal, send first information or the paging message to the terminal within the first time window or at the first time domain position.

[0565] Optionally, the first valid duration is determined based on a sending period of the uplink reference signal, or based on a period for listening to a paging message by the terminal;

[0566] and / or,

[0567] the second valid duration is determined based on a sending period of the uplink reference signal, or based on a period for listening to a paging message by the terminal.

[0568] Optionally, the sending unit 1120 is further used for:

[0569] sending a first message to a management node of the first network device, wherein the first message is used to request the management node to query whether there is a paging message of the terminal;

[0570] in a case where a second message sent by the management node is received, sending first information or a paging message to the terminal, wherein the second message is used to indicate that there is a paging message of the terminal, and / or the second message carries the paging message of the terminal.

[0571] Optionally, the first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal received by the first network device.

[0572] and / or,

[0573] The first time domain position is associated with an uplink reference signal received by the first network device, or is determined based on identification information of the terminal.

[0574] Optionally, the first time window being associated with the uplink reference signal received by the first network device includes that the first time window is associated with a receiving time of the last time when the first network device receives the uplink reference signal.

[0575] and / or,

[0576] The first time domain position being associated with the uplink reference signal received by the first network device includes that the first time domain position is associated with a receiving time of the last time when the first network device receives the uplink reference signal.

[0577] It should be noted that the above network device provided by the embodiments of the present application can realize all the method steps realized by the first network device side paging method embodiments, and can achieve the same technical effects, and the same parts and beneficial effects of the method embodiments in the embodiments will not be described in detail.

[0578] It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and another division mode can be used in actual implementation. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware, or in the form of a software functional unit.

[0579] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a processor-readable storage medium. Based on such an understanding, the technical solutions of the present application, essentially or in other words, the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0580] The processor-readable storage medium provided in the embodiments of the present application stores a computer program, the computer program is used for causing the processor to execute the steps of the terminal-side paging method, or the computer program is used for causing the processor to execute the steps of the first network device-side paging method, and the same technical effects can be achieved. Here, the same parts and beneficial effects in the method embodiments will not be described in detail.

[0581] The computer program product provided in the embodiments of the present application includes computer instructions, the computer instructions are executed by the processor to implement each process of the terminal-side paging method embodiments, or the computer instructions are executed by the processor to implement each process of the first network device-side paging method embodiments, and the same technical effects can be achieved. To avoid repetition, here, the same parts and beneficial effects will not be described in detail.

[0582] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to a magnetic memory (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical memory (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor memory (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid-state hard disk (SSD)), etc.

[0583] Those skilled in the art will appreciate that embodiments of the application can be readily used as a method, a system or a computer program product. Accordingly, the application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, magnetic disks and optical storage) embodying computer readable program code.

[0584] The application is described in reference to the flow diagrams and / or block diagrams of the methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flow diagrams and / or block diagrams, and combinations of blocks in the flow diagrams and / or block diagrams, can be implemented by computer executable instructions. Figure 1 one or more functions specified in the flow diagram and / or block diagram block or blocks. Figure 1 means for performing one or more functions specified in the flow diagram and / or block diagram block or blocks.

[0585] These processor-executable instructions can also be loaded onto a computer or other programmable data processing devices, so that a series of operations are performed on the computer or other programmable data devices to produce a computer-implemented process such that the instructions executed on the computer or other programmable devices provide steps for implementing the flow diagram and / or block diagram block or blocks. Figure 1 one or more functions specified in the flow diagram and / or block diagram block or blocks. Figure 1 means for performing one or more functions specified in the flow diagram and / or block diagram block or blocks.

[0586] These processor-executable instructions can also be loaded onto a computer or other programmable data processing devices, so that a series of operations are performed on the computer or other programmable data devices to produce a computer-implemented process such that the instructions executed on the computer or other programmable devices provide steps for implementing the flow diagram and / or block diagram block or blocks. Figure 1 one or more functions specified in the flow diagram and / or block diagram block or blocks. Figure 1 means for performing one or more functions specified in the flow diagram and / or block diagram block or blocks.

[0587] Moreover, it is pointed out that, in the apparatus and method of the present application, the components or steps can be rearranged and / or equally combined. These rearrangements and / or combinations are also considered as equivalents of the present application. Also, the steps of performing the series of processes described above can naturally be executed in time series according to the order of explanation, but do not necessarily have to be executed in time series, and some steps can be executed in parallel or independently of each other. It is understood by those of ordinary skill in the art that all or any steps or components of the method and apparatus of the present application can be implemented in hardware, firmware, software, or a combination thereof, in any computing device (including a processor, a storage medium, etc.) or a network of computing devices, using their basic programming skills upon reading the description of the present application.

[0588] Obviously, various modifications and changes can be made to the present application by those of ordinary skill in the art without departing from the spirit and scope of the present application. Thus, it is intended that the present application also cover such modifications and changes as fall within the scope of the claims, and their equivalents.

Claims

1. A paging method, characterized by, Comprising: a terminal sending an uplink reference signal; the terminal monitoring first information or a paging message sent by a first network device in a first time window or a first time domain position; wherein the first network device comprises at least one network device receiving the uplink reference signal and satisfying a first condition, and the first information is used for instructing the terminal to receive the paging message or for instructing the terminal to initiate random access.

2. The paging method of claim 1, wherein, The network device receiving the uplink reference signal comprises at least one of: a network device receiving the uplink reference signal with a signal strength greater than or equal to a first threshold; a network device receiving the uplink reference signal with a signal quality greater than or equal to a second threshold; a network device successfully demodulating the uplink reference signal.

3. The paging method of claim 1, wherein, The first condition comprises at least one of: a signal strength greater than or equal to a third threshold; a signal quality greater than or equal to a fourth threshold; successful demodulation of the uplink reference signal.

4. The paging method of claim 1, wherein, The terminal sending the uplink reference signal comprises: the terminal sending the uplink reference signal in a periodic manner; and / or, the terminal sending the uplink reference signal under a second condition; wherein the second condition comprises the terminal entering a first area, or the terminal changing the first area, or the terminal leaving the first area.

5. The paging method of claim 4, wherein, The first area comprises at least one of: a tracking area (TA) of the terminal; a notification area (RNA) of an access network of the terminal; a pre-configured physical area.

6. The paging method according to claim 4 or 5, characterized by, The terminal determines that the second condition is satisfied by at least one of: the terminal determining, based on mobile location positioning, that the geographical position of the terminal belongs to a pre-configured physical area or that the geographical position of the terminal does not belong to a pre-configured physical area; the terminal determining, based on received downlink information, that a network device serving the terminal belongs to a TA of the terminal or that the TA of the terminal is changed; the terminal determining, based on received downlink information, that a network device serving the terminal belongs to an RNA of the terminal or that the RNA of the terminal is changed.

7. The paging method of claim 1, wherein, The terminal sending the uplink reference signal comprises: the terminal sending the uplink reference signal on a first time domain resource; wherein the first time domain resource is configured by a network side device or is determined based on identification information of the terminal; and / or, the terminal sending the uplink reference signal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device or is determined based on a frequency information associated uplink reference signal frequency of a downlink reference signal received by the terminal.

8. The paging method of claim 1, wherein, The terminal monitoring the first information or the paging message sent by the first network device comprises: the terminal monitoring the first information or the paging message sent by the first network device on a second frequency domain resource; wherein the second frequency domain resource comprises at least one of: a frequency domain resource for sending and / or receiving a downlink reference signal; a frequency domain resource associated with a frequency domain resource for sending and / or receiving a downlink reference signal.

9. The paging method of claim 1, wherein, Further comprising at least one of the following: In a case of listening to the first information indicating that the terminal receives the paging message, the terminal performs paging message listening; In a case of listening to the first information indicating that the terminal initiates random access, the terminal initiates random access on a resource scheduled by the first information; In a case of listening to the paging message, the terminal initiates random access.

10. The paging method of claim 1, wherein, The first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal sent by the terminal; And / or, The first time domain position is associated with an uplink reference signal sent by the terminal, or is determined based on identification information of the terminal.

11. The paging method of claim 10, wherein, The first time window is associated with a sending time of the last time the terminal sends an uplink reference signal; And / or, The first time domain position is associated with a sending time of the last time the terminal sends an uplink reference signal.

12. A paging method, characterized by, The method comprises: A first network device receives an uplink reference signal sent by a terminal; In a first time window or a first time domain position, the first network device sends first information or a paging message to the terminal; The first network device comprises at least one network device that receives the uplink reference signal and satisfies a first condition, and the first information is used to indicate that the terminal receives the paging message or is used to indicate that the terminal initiates random access.

13. The paging method of claim 12, wherein, The network device that receives the uplink reference signal comprises at least one of the following: A network device that receives the uplink reference signal with a signal strength greater than or equal to a first threshold; A network device that receives the uplink reference signal with a signal quality greater than or equal to a second threshold; A network device that successfully demodulates the uplink reference signal.

14. The paging method of claim 12, wherein, The first condition comprises at least one of the following: The signal strength of the received uplink reference signal is greater than or equal to a third threshold; The signal quality of the received uplink reference signal is greater than or equal to a fourth threshold; The uplink reference signal is successfully demodulated.

15. The paging method of claim 12, wherein, The first network device receives an uplink reference signal sent by a terminal, comprising: The first network device receives the uplink reference signal sent by the terminal on a first time domain resource; wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal; And / or, The first network device receives the uplink reference signal sent by the terminal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on a frequency information associated uplink reference signal frequency of a downlink reference signal sent by the first network device.

16. The paging method of claim 12, wherein, The first network device sends first information or a paging message to the terminal, comprising: The first network device sends first information or a paging message to the terminal on a second frequency domain resource; wherein the second frequency domain resource comprises at least one of the following: A frequency domain resource for sending and / or receiving a downlink reference signal; A frequency domain resource associated with a frequency domain resource used for transmitting and / or receiving a downlink reference signal.

17. The paging method of claim 12, wherein, The first network device sends first information or a paging message to the terminal in a first time window or a first time domain position. If the first network device determines that there is a paging message of the terminal, the first network device sends first information or a paging message to the terminal in a first time window or a first time domain position.

18. The paging method of claim 12 or 17, wherein, Also includes: In the case where the first network device stores the paging message of the terminal for a duration exceeding a first valid duration, the paging message of the terminal is deleted.

19. The paging method of claim 12, wherein, The first network device sends first information or a paging message to the terminal in a first time window or a first time domain position. If the first network device receives a paging message of the terminal or a paging message of the terminal arrives within a second valid duration of receiving the uplink reference signal, the first network device sends first information or the paging message to the terminal in the first time window or the first time domain position.

20. The paging method of claim 18 or 19, wherein, The first valid duration is determined based on a transmission period of the uplink reference signal or based on a period in which the terminal listens for a paging message. And / or, The second valid duration is determined based on a transmission period of the uplink reference signal or based on a period in which the terminal listens for a paging message.

21. The paging method of claim 12, wherein, The first network device sends first information or a paging message to the terminal, including: The first network device sends a first message to a management node of the first network device; wherein the first message is used to request the management node to query whether there is a paging message of the terminal; In the case where the first network device receives a second message sent by the management node, the first network device sends first information or a paging message to the terminal; wherein the second message is used to indicate that there is a paging message of the terminal, and / or the second message carries the paging message of the terminal.

22. The paging method of claim 12, wherein, The first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal received by the first network device. And / or, The first time domain position is associated with an uplink reference signal received by the first network device, or is determined based on identification information of the terminal.

23. The paging method of claim 22, wherein, The first time window is associated with an uplink reference signal received by the first network device, including that the first time window is associated with a reception time of the last time the first network device receives an uplink reference signal. And / or, The first time domain position is associated with an uplink reference signal received by the first network device, including that the first time domain position is associated with a reception time of the last time the first network device receives an uplink reference signal.

24. A terminal, characterized by A memory, a transceiver, and a processor; The memory is used to store computer programs; the transceiver is used to transceive data under the control of the processor; and the processor is used to read the computer programs in the memory and perform the following operations: Transmit an uplink reference signal; Listen to first information or a paging message sent by a first network device in a first time window or a first time domain position. The first network device comprises at least one network device receiving the uplink reference signal and satisfying a first condition, and the first information is used for instructing the terminal to receive a paging message or for instructing the terminal to initiate random access.

25. The terminal according to claim 24, characterized by The network device receiving the uplink reference signal comprises at least one of the following: The network device receiving the uplink reference signal with a signal strength greater than or equal to a first threshold; The network device receiving the uplink reference signal with a signal quality greater than or equal to a second threshold; The network device successfully demodulating the uplink reference signal.

26. The terminal of claim 24, wherein, The first condition comprises at least one of the following: The network device receiving the uplink reference signal with a signal strength greater than or equal to a third threshold; The network device receiving the uplink reference signal with a signal quality greater than or equal to a fourth threshold; The network device successfully demodulating the uplink reference signal.

27. The terminal of claim 24, wherein, The processor is configured to read a computer program in the memory and perform the following operations: The uplink reference signal is transmitted in a periodic manner; And / or, The uplink reference signal is transmitted under a second condition; wherein the second condition comprises that the terminal enters a first area, or the terminal changes the first area, or the terminal leaves the first area.

28. The terminal according to claim 27, characterized by The first area comprises at least one of the following: A tracking area (TA) of the terminal; A notification area (RNA) of an access network of the terminal; A pre-configured physical area.

29. The terminal according to claim 27 or 28, characterized by The processor is configured to read a computer program in the memory and perform at least one of the following to determine that the second condition is satisfied: Based on mobile location positioning, it is determined that the geographical position of the terminal belongs to a pre-configured physical area, or it is determined that the geographical position of the terminal does not belong to a pre-configured physical area; Based on received downlink information, it is determined that a network device serving the terminal belongs to a TA of the terminal, or it is determined that the TA of the terminal is changed; Based on received downlink information, it is determined that a network device serving the terminal belongs to an RNA of the terminal, or it is determined that the RNA of the terminal is changed.

30. The terminal of claim 24, wherein, The processor is configured to read a computer program in the memory and perform the following operations: The uplink reference signal is transmitted on a first time domain resource; wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal; And / or, The uplink reference signal is transmitted on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on a frequency information associated uplink reference signal frequency of a downlink reference signal received by the terminal.

31. The terminal of claim 24, wherein, The processor is configured to read a computer program in the memory and perform the following operations: The first information or a paging message transmitted by the first network device is listened on a second frequency domain resource; wherein the second frequency domain resource comprises at least one of the following: A frequency domain resource for transmitting and / or receiving a downlink reference signal; A frequency domain resource associated with a frequency domain resource for transmitting and / or receiving a downlink reference signal.

32. The terminal of claim 24, wherein, The processor is configured to read a computer program in the memory and perform at least one of the following operations: In a case that the first information indicating the terminal to receive the paging message is monitored, the paging message monitoring is performed; In a case that the first information indicating the terminal to initiate the random access is monitored, the random access is initiated on a resource scheduled by the first information; In a case that the paging message is monitored, the random access is initiated.

33. The terminal of claim 24, wherein, The first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with an uplink reference signal sent by the terminal; And / or, The first time domain position is associated with the uplink reference signal sent by the terminal, or is determined based on identification information of the terminal.

34. The terminal according to claim 33, characterized by The first time window being associated with the uplink reference signal sent by the terminal includes that the first time window is associated with a sending time of the terminal sending the uplink reference signal last time; And / or, The first time domain position being associated with the uplink reference signal sent by the terminal includes that the first time domain position is associated with a sending time of the terminal sending the uplink reference signal last time.

35. A terminal, characterized by Comprise: A sending unit configured to send an uplink reference signal; A monitoring unit configured to monitor first information or a paging message sent by a first network device in a first time window or a first time domain position; The first network device comprises at least one network device receiving the uplink reference signal and satisfying a first condition, and the first information is used to indicate the terminal to receive the paging message or to initiate the random access.

36. A network device, comprising: The network device is a first network device, comprising a memory, a transceiver, and a processor; The memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: Receive an uplink reference signal sent by a terminal; Send first information or a paging message to the terminal in a first time window or a first time domain position; The first network device comprises at least one network device receiving the uplink reference signal and satisfying a first condition, and the first information is used to indicate the terminal to receive the paging message or to initiate the random access.

37. The network device of claim 36, wherein, The network device receiving the uplink reference signal comprises at least one of the following: A network device receiving the uplink reference signal with a signal strength greater than or equal to a first threshold; A network device receiving the uplink reference signal with a signal quality greater than or equal to a second threshold; A network device successfully demodulating the uplink reference signal.

38. The network device of claim 36, wherein, The first condition comprises at least one of the following: A signal strength of the uplink reference signal received is greater than or equal to a third threshold; A signal quality of the uplink reference signal received is greater than or equal to a fourth threshold; The uplink reference signal is successfully demodulated.

39. The network device of claim 36, wherein, The processor is configured to read the computer program in the memory and perform the following operations: Receive the uplink reference signal sent by the terminal on a first time domain resource; wherein the first time domain resource is configured by a network side device, or the first time domain resource is determined based on identification information of the terminal; And / or, receive the uplink reference signal sent by the terminal on a first frequency domain resource; wherein the first frequency domain resource is configured by a network side device, or the first frequency domain resource is determined based on a frequency information of a downlink reference signal sent by the first network device.

40. The network device of claim 36, wherein, The processor is configured to read the computer program in the memory and perform the following operations: send first information or a paging message to the terminal on a second frequency domain resource; wherein the second frequency domain resource comprises at least one of the following: a frequency domain resource for sending and / or receiving a downlink reference signal; a frequency domain resource associated with the frequency domain resource for sending and / or receiving a downlink reference signal.

41. The network device of claim 36, wherein, The processor is configured to read the computer program in the memory and perform the following operations: if it is determined that there is a paging message of the terminal, send first information or a paging message to the terminal within a first time window or at a first time domain position.

42. The network device of claim 36 or 41, wherein, The processor is configured to read the computer program in the memory and perform the following operations: if the duration of storing the paging message of the terminal exceeds a first valid duration, delete the paging message of the terminal.

43. The network device of claim 36, wherein, The processor is configured to read the computer program in the memory and perform the following operations: if the paging message of the terminal is received or arrives within a second valid duration of receiving the uplink reference signal, send first information or the paging message to the terminal within the first time window or at the first time domain position.

44. The network device of claim 42 or 43, wherein, The first valid duration is determined based on a sending period of the uplink reference signal, or based on a period of terminal listening to a paging message; and / or, The second valid duration is determined based on a sending period of the uplink reference signal, or based on a period of terminal listening to a paging message.

45. The network device of claim 36, wherein, The processor is configured to read the computer program in the memory and perform the following operations: send a first message to a management node of the first network device; wherein the first message is used to request the management node to query whether there is a paging message of the terminal; if a second message sent by the management node is received, send first information or a paging message to the terminal; wherein the second message is used to indicate that there is a paging message of the terminal, and / or the second message carries the paging message of the terminal.

46. The network device of claim 36, wherein, The first time window is configured by a network side device, or is based on a protocol agreement, or the first time window is associated with the uplink reference signal received by the first network device; and / or, The first time domain position is associated with the uplink reference signal received by the first network device, or is determined based on identification information of the terminal.

47. The network device of claim 46, wherein, The first time window is associated with the uplink reference signal received by the first network device, which comprises that the first time window is associated with a receiving time of the last time when the first network device receives an uplink reference signal; and / or, The first time domain position is associated with the uplink reference signal received by the first network device, which comprises that the first time domain position is associated with a receiving time of the last time when the first network device receives an uplink reference signal.

48. A network device, comprising: The network device is a first network device, comprising: a receiving unit, configured to receive an uplink reference signal sent by a terminal; a sending unit, configured to send first information or a paging message to the terminal in a first time window or a first time domain position; wherein the first network device comprises at least one network device that receives the uplink reference signal and satisfies a first condition, and the first information is used to instruct the terminal to receive the paging message or to instruct the terminal to initiate random access.

49. A processor-readable storage medium, comprising: The processor readable storage medium stores a computer program, and the computer program is used to make the processor execute the steps of the paging method in any one of claims 1 to 23.

50. A computer program product, characterised in that, The computer program comprises computer instructions, and the computer instructions are executed by the processor to implement the steps of the paging method in any one of claims 1 to 23.

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