Communication method and device

Abstract

The present application relates to the field of communication technologies and provides a communication method and apparatus. The method includes a terminal device determining a paging hyperframe and monitoring scheduling information for a first paging message and a second paging message in a time window of the paging hyperframe. The time window is determined based on a first paging time window and a second paging time window, or the time window is determined based on the first paging time window. The start position of the first paging time window is determined based on a first extended discontinuous reception cycle, and the start position of the second paging time window is determined based on the second extended discontinuous reception cycle. The first paging message is initiated by a core network, and the second paging message is initiated by an access network. According to the method, the terminal device simultaneously monitors a first paging message initiated by the CN and a second paging message initiated by the RAN in a time window of a paging hyperframe, thereby reducing the number of times the terminal device needs to wake up, thereby reducing the power consumption of the terminal device and increasing the standby time of the terminal device.

Description

[Technical Field]

[0001]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese Patent Application No. 202310155155.1, entitled "Communication Method and Apparatus," filed with the State Intellectual Property Office of the People's Republic of China on February 13, 2023, the entire contents of which are incorporated herein by reference.

[0002]

[0002] Technical Field TECHNICAL FIELD This application relates to the field of communications technology, and in particular to communications methods and devices. [Background technology]

[0003]

[0003] In systems such as new radio (NR) systems, a terminal device in radio resource control (RRC) idle mode or RRC inactive mode can periodically wake up using discontinuous reception (DRX) to monitor paging messages. The terminal device determines a paging occasion (PO) based on the DRX configuration and performs blind detection on the PO. If a physical downlink control channel (PDCCH) is detected through blind detection and the physical downlink shared channel (PDSCH) scheduled by the PDCCH contains a paging message for paging the terminal device, the terminal device determines that it needs to access the network and switches to RRC connected mode. Otherwise, the terminal device remains in RRC idle mode or RRC inactive mode.

[0004]

[0004] In addition to DRX, a terminal device can alternatively wake up periodically to monitor a PO by using an extended discontinuous reception (eDRX) mechanism. The periodicity of the periodic wake-ups may be referred to as an eDRX cycle. The difference between DRX and eDRX lies in their different cycle durations. An eDRX cycle is longer than a DRX cycle. Therefore, using the eDRX mechanism makes it possible to extend the sleep duration of the terminal device and reduce the number of periodic wake-ups, thereby further reducing power consumption.

[0005]

[0005] Paging messages monitored by a terminal device can be classified into two types: paging messages initiated by a core network (CN) and paging messages initiated by a radio access network (RAN). Different paging messages are transmitted at different cycles. Therefore, multiple eDRX cycles are configured on the network side, such as a first eDRX cycle and a second eDRX cycle. The terminal device monitors paging messages initiated by the CN based on the first eDRX cycle and paging messages initiated by the RAN based on the second eDRX cycle.

[0006]

[0006] Because the terminal device needs to monitor paging messages initiated by the CN and paging messages initiated by the RAN based on different eDRX cycles, the terminal device needs to wake up frequently, which increases the power consumption of the terminal device and reduces the standby time of the terminal device. Summary of the Invention

[0007]

[0007] The present application provides a communication method and apparatus for reducing the power consumption of a terminal device that monitors paging messages and increasing the standby time of the terminal device.

[0008] According to a first aspect, the present application provides a communication method. The method is executed by a terminal device or a module within the terminal device. For illustrative purposes, an example in which the method is executed by a terminal device is used. The method includes the terminal device determining a paging hyperframe. The paging hyperframe is determined based on a first extended discontinuous reception cycle set by a core network, the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and a second extended discontinuous reception cycle set by an access network, or the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle. The second extended discontinuous reception cycle is greater than 10.24 seconds. The terminal device monitors scheduling information for the first paging message and the second paging message within a time window of the paging hyperframe. The time window is determined based on a first paging time window and a second paging time window, or the time window is determined based on the first paging time window. The start position of the first paging time window is determined based on a first extended discontinuous reception cycle, and the start position of the second paging time window is determined based on a second extended discontinuous reception cycle. The first paging message is initiated by the core network, and the second paging message is initiated by the access network.

[0009]

[0009] According to this method, the terminal device simultaneously monitors a first paging message initiated by the CN and a second paging message initiated by the RAN during the time window of the paging hyperframe, thereby reducing the number of times the terminal device needs to wake up due to monitoring the paging messages, thereby reducing the power consumption of the terminal device and increasing the standby time of the terminal device.

[0010] In a possible implementation, the time window is determined based on the first paging time window and the second paging time window by: If the length of the first paging time window is equal to or greater than the length of the second paging time window, the start position of the time window in the paging hyperframe is determined based on the first extended discontinuous reception cycle; or If the length of the first paging time window is less than the length of the second paging time window, a start position of the time window in the paging hyperframe is determined based on the second extended discontinuous reception cycle.

[0011]

[0011] In the above method, the start position of the time window is equal to the start position of the longest paging time window in the first paging time window and the second paging time window, which simplifies the process of determining the time window by the terminal device and improves monitoring efficiency.

[0012]

[0012] In a possible implementation, the length of the time window is equal to the maximum length of the first paging time window and the length of the second paging time window.

[0013]

[0013] In the above method, the terminal device can monitor all paging occasions in the first paging time window and the second paging time window to avoid cases where it is unable to receive a paging message.

[0014] In a possible implementation, the time window is determined based on the first paging time window by: The start position of the time window in the paging hyperframe is equal to the start position of the first paging time window in the paging hyperframe.

[0015]

[0015] In the above method, the start position of the time window is equal to the start position of the first paging time window, and the existing start position determination method can be used to further simplify the process of determining the time window by the terminal device, improve monitoring efficiency, and improve system compatibility.

[0016] In a possible implementation, the length of the time window is equal to the length of the first paging time window.

[0017]

[0017] In a possible implementation, the length of the time window is equal to the maximum length of the first paging time window and the length of the second paging time window.

[0018] In one possible implementation, the scheduling information for the first paging message and the scheduling information for the second paging message are located in a paging frame of a time window. The paging frame is determined based on a first parameter T1, which is determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, where the default discontinuous reception cycle is from system information broadcast by the access network device.

[0019]

[0019] In a possible implementation, the paging frame includes paging occasions for scheduling information of the first paging message and scheduling information of the second paging message, and the index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of a default discontinuous reception cycle and a first discontinuous reception cycle.

[0020] In one possible implementation, the scheduling information for the first paging message and the scheduling information for the second paging message are located in a paging frame of a time window. The paging frame is determined based on a first parameter T1 within a period from the start position of the time window to a preset position. The first parameter T1 is determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message. The preset position is determined based on the start position of the time window and the shorter of the length of the first paging time window and the length of the second paging time window.

[0021]

[0021] The paging frame is determined based on a third parameter T3 within a period from the preset position to the end position of the time window. The third parameter T3 is determined based on at least one of a default discontinuous reception cycle and a first discontinuous reception cycle when the length of the first paging time window is equal to or greater than the length of the second paging time window, or the third parameter T3 is determined based on at least one of the default discontinuous reception cycle and a second discontinuous reception cycle when the length of the first paging time window is less than the length of the second paging time window. The end position of the time window is determined based on the start position and the length of the time window.

[0022]

[0022] In the above method, different periodicities are used to monitor paging messages in different parts of the time window, and paging monitoring is performed by using differentiated periodicities. A longer periodicity can be used to monitor paging messages from a preset position to the end position of the time window, further reducing the power consumption of the terminal device.

[0023]

[0023] In a possible implementation, the paging frame includes paging occasions for the scheduling information of the first paging message and the scheduling information of the second paging message, and the index of the paging occasion in the paging frame is determined based on a second parameter T2, which is determined based on at least one of a default discontinuous reception cycle and a first discontinuous reception cycle; or the index of the paging occasion in the paging frame is determined based on a third parameter T2.

[0024] In a possible implementation, when the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or when the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, the hyper system frame number H-SFN of the paging hyperframe satisfies the following format: H-SFN mod T X =(UE_ID_H mod T X ) T X represents the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, UE_ID_H is determined based on the identifier of the terminal device, and mod represents modulo operation (remainder operation).

[0025] According to a second aspect, the present application provides a communication method. The method is executed by an access network device or a module within the access network device. For illustrative purposes, an example in which the method is executed by the access network device is used. The method includes the access network device determining a paging hyperframe. The paging hyperframe is determined based on the least common multiple of a first extended discontinuous reception cycle and a second extended discontinuous reception cycle set by the access network, or the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle. The second extended discontinuous reception cycle is greater than 10.24 seconds. The access network device transmits scheduling information for the first paging message or the second paging message within a time window of the paging hyperframe. The time window is determined based on a first paging time window and a second paging time window, or the time window is determined based on the first paging time window. The start position of the first paging time window is determined based on the first extended discontinuous reception cycle, and the start position of the second paging time window is determined based on the second extended discontinuous reception cycle. The first paging message is initiated by the core network, and the second paging message is initiated by the access network.

[0026] In a possible implementation, the time window is determined based on the first paging time window and the second paging time window by: If the length of the first paging time window is equal to or greater than the length of the second paging time window, the start position of the time window in the paging hyperframe is determined based on the first extended discontinuous reception cycle; or If the length of the first paging time window is less than the length of the second paging time window, a start position of the time window in the paging hyperframe is determined based on the second extended discontinuous reception cycle.

[0027]

[0027] In a possible implementation, the length of the time window is equal to the maximum length of the first paging time window and the length of the second paging time window.

[0028] In a possible implementation, the time window is determined based on the first paging time window by: The start position of the time window in the paging hyperframe is equal to the start position of the first paging time window in the paging hyperframe.

[0029] In a possible implementation, the length of the time window is equal to the length of the first paging time window.

[0030]

[0030] In a possible implementation, the length of the time window is equal to the maximum length of the first paging time window and the length of the second paging time window.

[0031] In one possible implementation, the scheduling information for the first paging message and the scheduling information for the second paging message are located in a paging frame of a time window. The paging frame is determined based on a first parameter T1, which is determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, where the default discontinuous reception cycle is from system information broadcast by the access network device.

[0032]

[0032] In a possible implementation, the paging frame includes paging occasions for scheduling information of the first paging message and scheduling information of the second paging message, and the index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of a default discontinuous reception cycle and a first discontinuous reception cycle.

[0033] In one possible implementation, the scheduling information for the first paging message and the scheduling information for the second paging message are located in a paging frame of a time window. The paging frame is determined based on a first parameter T1 within a period from the start position of the time window to a preset position. The first parameter T1 is determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message. The preset position is determined based on the start position of the time window and the shorter of the length of the first paging time window and the length of the second paging time window.

[0034]

[0034] The paging frame is determined based on a third parameter T3 within a period from the preset position to the end position of the time window. The third parameter T3 is determined based on at least one of a default discontinuous reception cycle and a first discontinuous reception cycle when the length of the first paging time window is equal to or greater than the length of the second paging time window, or the third parameter T3 is determined based on at least one of a default discontinuous reception cycle and a second discontinuous reception cycle when the length of the first paging time window is less than the length of the second paging time window. The end position of the time window is determined based on the start position and the length of the time window.

[0035]

[0035] In a possible implementation, the paging frame includes paging occasions of the scheduling information of the first paging message and the scheduling information of the second paging message, and the index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of a default discontinuous reception cycle and the first discontinuous reception cycle; or The index of the paging occasion in the paging frame is determined based on the third parameter T2.

[0036] In a possible implementation, when the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or when the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, the hyper system frame number H-SFN of the paging hyperframe satisfies the following format: H-SFN mod T X =(UE_ID_H mod T X ) T Xrepresents the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, UE_ID_H is determined based on the identifier of the terminal device, and mod represents a modulo operation.

[0037]

[0037] According to a third aspect, an embodiment of the present application provides a communication apparatus, the apparatus being capable of being used in a terminal device and having functionality for implementing the method performed by the terminal device in the first aspect.

[0038]

[0038] The communication device may be realized by hardware or by executing corresponding software on the hardware, which may include one or more units or modules corresponding to the aforementioned functions.

[0039]

[0039] In a possible implementation, the communication device includes a processor. The processor is configured to support the communication device in performing corresponding functions of the terminal device in the aforementioned method. The communication device may further include a memory. The memory may be coupled to the processor, and the memory stores program instructions and data required for the communication device. Optionally, the communication device further includes a communication interface. The communication interface is configured to support communication between the communication device and a device such as an access network device.

[0040]

[0040] In a possible implementation, the communication device includes corresponding functional modules configured to perform the steps of the aforementioned methods. The functions may be realized by hardware or by executing corresponding software by the hardware. The hardware or software includes one or more modules corresponding to the aforementioned functions.

[0041]

[0041] In a possible implementation, the structure of the communication device includes a processing unit and a communication unit. These units can perform corresponding functions in the above-mentioned method examples. For details, please refer to the description of the method according to the first aspect. The details will not be described again here.

[0042]

[0042] According to a fourth aspect, the present application further provides a communications apparatus, the apparatus being capable of being used in an access network device and performing the method performed by the access network device of the second aspect.

[0043]

[0043] The communication device may be realized by hardware or by executing corresponding software on the hardware, which may include one or more units or modules corresponding to the aforementioned functions.

[0044]

[0044] In a possible implementation, the communication device includes a processor. The processor is configured to support the communication device in performing corresponding functions of the access network device in the aforementioned method. The communication device may further include a memory. The memory may be coupled to the processor, and the memory stores program instructions and data required for the communication device. Optionally, the communication device further includes a communication interface. The communication interface is configured to support communication between the communication device and a device such as a terminal device.

[0045]

[0045] In a possible implementation, the communication device includes corresponding functional modules configured to perform the steps of the aforementioned methods. The functions may be realized by hardware or by executing corresponding software by the hardware. The hardware or software includes one or more modules corresponding to the aforementioned functions.

[0046]

[0046] In a possible implementation, the structure of the communication device includes a processing unit and a communication unit. These units can perform corresponding functions in the above-mentioned method examples. For details, please refer to the description of the method according to the third aspect. The details will not be described again here.

[0047] According to a fifth aspect, there is provided a communication device including a processor and an interface circuit. The interface circuit is configured to receive a signal from a communication device other than the communication device and transmit the signal to the processor, or transmit a signal from the processor to a communication device other than the communication device. The processor is configured to implement the method of the first aspect, the second aspect, and any possible implementation of either aspect by using logic circuitry or by executing code instructions.

[0048] According to a sixth aspect, there is provided a communication device including a processor and an interface circuit. The interface circuit is configured to receive a signal from a communication device other than the communication device and transmit the signal to the processor, or to transmit a signal from the processor to a communication device other than the communication device. The processor is configured to implement functional modules of the methods of the first aspect, the second aspect, and any possible implementation of either aspect by using logic circuits or by executing code instructions.

[0049]

[0049] According to a seventh aspect, there is provided a computer-readable storage medium having stored thereon a computer program or instructions which, when executed by a processor, result in the method of the first aspect, the second aspect, and any possible implementation of either aspect.

[0050]

[0050] According to an eighth aspect, a computer program product is provided that stores instructions, which, when executed by a processor, result in a method of any of the first and second aspects and any possible implementation of any one of the aspects.

[0051] According to a ninth aspect, there is provided a chip. The chip includes a processor, further includes a memory, and is configured to implement any of the methods of the first aspect and the second aspect and any possible implementation of any one of the aspects. The chip may alternatively include other modules and other individual devices.

[0052] According to a tenth aspect, there is provided a communication system, comprising an apparatus (such as a terminal device) configured to perform the method provided in the first aspect, and an apparatus (such as an access network device) configured to perform the method provided in the second aspect.

[0053]

[0053] According to an eleventh aspect, there is provided a communication system, the communication system including a terminal device and an access network device.

[0054]

[0054] The access network device is configured to determine a paging hyperframe and transmit scheduling information for the first paging message or scheduling information for the second paging message within a time window of the paging hyperframe.

[0055]

[0055] The terminal device is configured to determine a paging hyperframe and monitor scheduling information of the first paging message and scheduling information of the second paging message within a time window of the paging hyperframe.

[0056]

[0056] The paging hyperframe is determined based on a first extended discontinuous reception cycle set by the core network, and the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and a second extended discontinuous reception cycle set by the access network, or the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle. The second extended discontinuous reception cycle is greater than 10.24 seconds. The time window is determined based on a first paging time window and a second paging time window, or the time window is determined based on the first paging time window. The start position of the first paging time window is determined based on the first extended discontinuous reception cycle, and the start position of the second paging time window is determined based on the second extended discontinuous reception cycle. The first paging message is initiated by the core network, and the second paging message is initiated by the access network. [Brief explanation of the drawings]

[0057] [Figure 1]

[0057] Figure 1 is a diagram of a network architecture applicable to embodiments of the present application. [Figure 2]

[0058] FIG. 2 is a diagram of eDRX paging according to an embodiment of the present application. [Figure 3]

[0059] FIG. 3 is a diagram of eDRX paging according to an embodiment of the present application. [Figure 4]

[0060] FIG. 4 is a schematic flowchart of a communication method according to an embodiment of the present application. [Figure 5]

[0061] FIG. 5 is a diagram of the positional relationship between the first PTW and the second PTW according to an embodiment of the present application. [Figure 6]

[0062] FIG. 6 is a diagram of a time window according to an embodiment of the present application. [Figure 7]

[0063] FIG. 7 is a configuration diagram of a communication device according to an embodiment of the present application. [Figure 8]

[0064] FIG. 8 is a configuration diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0058]

[0065] Hereinafter, the technical solutions in the embodiments of the present application will be clearly and fully described with reference to the accompanying drawings in the embodiments of the present application. It is clear that the described embodiments are only a part, not all, of the embodiments of the present application. The terms "first" and "second," corresponding term numbers, and the like in the specification, claims, and accompanying drawings of the present application are intended to distinguish similar objects and do not necessarily describe a specific sequence or order. It should be understood that the terms used in this manner are interchangeable under appropriate circumstances, and are merely a way of identifying objects having the same attributes when described in the embodiments of the present application. Furthermore, the terms "comprise," "include," and any other variations are meant to cover non-exclusive inclusion, such that a process, method, system, product, or device comprising a series of units is not necessarily limited to those units and may include other units not expressly listed or inherent in such process, method, system, product, or device.

[0059]

[0066] The communication methods provided in the embodiments of the present application may be applied to various mobile communication systems, such as the Internet of Things (IoT), narrow band Internet of Things (NB-IoT), long term evolution (LTE), fifth generation (5G) communication systems (e.g., 5G new radio (NR)), hybrid architectures of LTE and 5G, or new communication systems emerging in 6G or future communication developments. Alternatively, the communication system may be a machine-to-machine (M2M) network, a machine type communication (MTC) network, or other networks.

[0060]

[0067] The methods and devices provided in the embodiments of the present application are based on the same or similar technical concepts. Because the problem-solving principles of the methods and devices are similar, the implementations of the devices and methods can be cross-referenced. No repeated descriptions are provided.

[0061]

[0068] In this application, an access network device includes, but is not limited to, an evolved NodeB (eNB), a radio network controller (RNC), a NodeB (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved NodeB, or home NodeB (HNB)) baseband unit (BBU), an access point (AP), a wireless relay node, a wireless backhaul node, a transmission point (TP), a transmission reception point (TRP), or the like in a wireless fidelity (Wi-Fi) system; an access network device in a 5G mobile communication system, such as a next generation NodeB (gNB), a transmission reception point (TP), a Alternatively, the access network device may be a gNB or a network node forming a transmission point, such as a BBU or a distributed unit (DU). The specific technology and the specific device configuration used by the access network device are not limited in the embodiments of the present application.

[0062]

[0069] In the embodiments of the present application, the terminal device may be a device with wireless transceiver functionality or a chip disposed in any device, or may be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. In the embodiments of the present application, the terminal device may be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver functionality, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal for industrial control, a wireless terminal for autonomous driving, or the like. The specific technology used by the terminal device and the specific device configuration are not limited in the embodiments of the present application.

[0063]

[0070] Figure 1 is a diagram of a network architecture applicable to the present application. As shown in Figure 1, a terminal device can access an access network device and obtain services of an external network (e.g., a data network (DN)) through the access network device, or communicate with other devices through the access network device. Such a network may further include other devices, which is not limited in the present application.

[0064]

[0071] In FIG. 1, the terminal device can be configured to be in RRC idle mode, RRC inactive mode, or RRC active mode. A terminal device in RRC idle mode needs to monitor paging messages from the CN. A terminal device in RRC inactive mode needs to monitor paging messages from the CN and paging messages from the RAN. A paging message from the RAN, which may be abbreviated as a RAN paging message, is a paging message sent to a terminal device in a RAN-based notification area (RNA) when an access network device (e.g., a base station) receives data or signaling that needs to be sent to the terminal device. A paging message from the CN, which may be abbreviated as a CN paging message, is a paging message sent to a terminal device via an access network device (e.g., a base station) when a core network device needs to page the terminal device.

[0065]

[0072] The process of a terminal device monitoring a paging message is as follows: the terminal device monitors a physical downlink control channel (PDCCH) in a PO and determines, based on the monitored PDCCH, whether there is a paging message that needs to be received by the terminal device. If the monitored PDCCH includes downlink control information (DCI) scrambled using a paging radio network temporary identity (P-RNTI), the paging message is received on a PDSCH scheduled using the DCI. If it is determined based on the content of the paging message that the paging message is for paging the terminal device, the terminal device accesses the network and switches to the RRC connected mode; otherwise, the terminal device remains in the RRC idle mode or the RRC inactive mode.

[0066]

[0073] Because a terminal device in RRC inactive mode needs to monitor CN paging messages and RAN paging messages, two sets of parameters may be configured for the terminal device. One set of parameters is used to monitor CN paging messages, and the other set of parameters is used to monitor RAN paging messages. The parameters used to monitor CN paging messages may include information such as the eDRX cycle, the paging time window (PTW) window length, and a terminal device-specific paging periodicity. The parameters used to monitor RAN paging messages may include information such as the eDRX cycle and the PTW window length.

[0067]

[0074] The eDRX cycle corresponding to the CN paging message is T eDRX,CN The eDRX cycle corresponding to the RAN paging message is T eDRX,RAN For the eDRX cycle corresponding to the CN paging message, if the eDRX cycle is longer than 10.24 seconds (s), the PTW may be set in the eDRX cycle.

[0068]

[0075] For example, as shown in Figure 2, the eDRX cycle T corresponding to the CN paging message eDRX,CN In this case, the terminal device enters a sleep state outside the PTW, and the terminal device monitors the CN paging message with a period T within the PTW.

[0069]

[0076] For RAN paging messages, the PTW may or may not be set in the eDRX cycle. If the PTW is set in the eDRX cycle, for example, if the eDRX cycle is longer than 10.24 seconds (s), the PTW corresponding to the RAN paging message is set in the eDRX cycle T as shown in Figure 3. eDRX,RAN In this example, the terminal device enters a sleep state outside the PTW, and monitors for paging messages with a period T within the PTW.

[0070]

[0077] In Figures 2 and 3, T is the minimum of the RAN paging message period (hereinafter abbreviated as RAN paging period), the terminal device's specific paging period (if configured), and the default paging period. The default paging period is broadcast by the access network device. If the RAN paging period and the specific paging period are not configured, the paging message is monitored using the default paging period.

[0071]

[0078] When a terminal device monitors paging messages and a PTW exists, the terminal device and the access network device must determine the paging hyperframe (PH) in which the PTW is located and the system frame number (SFN) corresponding to the start position of the PTW in the paging hyperframe. One hyperframe contains 1024 system frames. The terminal device can determine the position of the paging frame (PF) in the PTW to monitor the PO in the PF. The PO is located in the paging frame, or the start position of the PO is located in the paging frame.

[0072]

[0079] A hyperframe corresponding to a hyper system frame number (H-SFN) that satisfies the following format may be used as the PH where the PTW is located:

number

[0073]

[0080] T eDRX,H is the eDRX cycle. For CN paging messages, T eDRX,H The eDRX cycle for CN paging messages is T eDRX,CN For RAN paging messages, T eDRX,H The eDRX cycle for RAN paging messages is eDRX,RAN is equal to.

[0074]

[0081] The UE_ID_H is determined based on the identifier of the terminal device. For example, the UE_ID_H is the most significant 13 bits of the hash identifier, and the hash identifier is determined based on the identity of the terminal device. For example, the identity of the terminal device is the 5G serving-temporary mobile subscriber identity (S-TMSI) of the terminal device. The lower 32 bits of the 5G S-TMSI are used, and the 32-bit frame check sequence is used as the hash identifier. mod represents modulo operation.

[0075]

[0082] For example, in a paging hyperframe, the SFN of the system frame in which the start of the PTW is located satisfies the following formula:

number

[0076]

[0083] floor() indicates a rounding down operation.

[0077]

[0084] For example, in PTW, the SFN of the PF satisfies the following formula:

number

[0078]

[0085] T is the minimum of the RAN paging cycle, the terminal device's specific paging cycle, and the default paging cycle. UE_ID is determined based on the terminal device's identification information. For example, the terminal device's identification information is the terminal device's 5G S-TMSI. The lower 10 bits (non-eDRX mode) or the lower 12 bits (eDRX mode) of the 5G S-TMSI are used.

[0079]

[0086] One PF may include multiple POs, and the index i_s of the PO monitored by the terminal device in the PF may satisfy the following formula:

number

[0080]

[0087] PF_offset is the offset used to determine the PF and is included in the system information block 1 (SIB1) transmitted by the access network device. Ns represents the number of POs included in one PF. N is the total number of PFs included in one paging cycle, and N is Set {T,T / 2,T / 4,T / 8,T / 16,T / 32,T / 64,T / 128,T / 256} The network side can specify the value of N from the set. For example, the network side can specify N=T / 2, and the terminal device can determine the value of N based on the value of T.

[0081]

[0088] It can be seen from the above description that because the terminal device needs to monitor paging messages initiated by the CN and paging messages initiated by the RAN based on different eDRX cycles, the terminal device needs to wake up frequently, which increases the power consumption of the terminal device and reduces the standby time of the terminal device. To solve this problem, the present application provides a method for reducing the number of times the terminal device wakes up, thereby reducing the power consumption of the terminal device and improving the standby time of the terminal device.

[0082]

[0089] The network architectures and service scenarios described in this application are intended to more clearly explain the technical solutions of this application, but do not constitute limitations on the technical solutions provided in this application. Those skilled in the art will understand that with the evolution of network architectures and the emergence of new service scenarios, the technical solutions provided in this application can also be applied to similar technical problems.

[0083]

[0090] In this application, the interaction between an access network device and a terminal device is used as an example for explanation. The operations performed by the access network device may alternatively be performed by a module within the access network device. For example, the module may be a chip in the access network device. The operations performed by the terminal device may alternatively be performed by a module within the terminal device. For example, the module may be a chip in the terminal device. It will be understood that the specific structure of the execution entity of the method provided in the embodiments of this application is not particularly limited in the following embodiments, provided that it is capable of executing a program recording the code of the method provided in the embodiments of this application and performing communication according to the method provided in the embodiments of this application. For example, the execution entity may be a terminal device or a functional module capable of calling and executing a program in the terminal device, or an access network device or a functional module capable of calling and executing a program in the access network device. Hereinafter, only a terminal device or an access network device is used as an example for explanation.

[0084]

[0091] Regarding the above description, Figure 4 is a schematic flowchart of a communication method according to an embodiment of the present application. Please refer to Figure 4. The method includes the following steps:

[0085]

[0092] Optionally, S401: an access network device sends first configuration information to a terminal device, and in response, the terminal device receives the first configuration information from the access network device.

[0086]

[0093] The first configuration information is: a first eDRX cycle T eDRX_CN , the first DRX cycle T DRX_CN , the window length of the first PTW L eDRX_CN It includes at least one of the following:

[0087]

[0094] In the paging hyperframe, the starting position of the first PTW may be determined based on the first eDRX cycle. For example, the value of the SFN of the system frame in which the starting position of the first PTW is located may be determined according to the above-mentioned equation (2). The terminal device monitors the CN paging message in the first PTW. The CN paging message is initiated by the core network. In this application, the CN paging message may also be referred to as the first paging message.

[0088]

[0095] The first configuration information may be assigned by a core network. For example, the first configuration information may be in non-access stratum (NAS) signaling. The NAS signaling is from the core network and is sent by the core network device to the access network device, and then: access -Transferred by the network device to the end device.

[0089]

[0096] Optionally, S402: the access network device sends second configuration information to the terminal device, and in response, the terminal device receives the second configuration information from the access network device.

[0090]

[0097] The second configuration information may be assigned by the access network, and may be in RRC signaling, for example, may be carried in an RRC connection release message or an RRC release message.

[0091]

[0098] The second configuration information is: a second eDRX cycle T eDRX_RAN , the second DRX cycle T DRX_RAN , and the length of the second PTW L eDRX_RAN It includes at least one of the following:

[0092]

[0099] In the paging hyperframe, the starting position of the second PTW may be determined based on the second eDRX cycle. For example, the value of the SFN of the system frame in which the starting position of the second PTW is located may be determined according to the above-mentioned equation (2). The terminal device monitors the RAN paging message in the second PTW. The RAN paging message is initiated by the access network. In this application, the RAN paging message may also be referred to as the second paging message.

[0093]

[0100] In an embodiment, the length L of the second PTW indicated by the access network device via the second configuration information eDRX_RAN is the length of the first PTW assigned by the core network CN, L eDRX_CN may be equal to

[0094]

[0101] In one implementation, it is agreed in advance that the second configuration information does not include the length LeDRX_RAN of the second PTW, and that the length LeDRX_RAN of the second PTW is equal to the length LeDRX_CN of the first PTW in the first configuration information.

[0095]

[0102] In some implementations, the terminal device supports monitoring of a PO when the PO of the first PTW is aligned with the PO of the second PTW, or the terminal device supports monitoring of a RAN paging message in the first PTW. The access network device may specify in the system information that scheduling information for the RAN paging message is transmitted in the PO of the first PTW.

[0096]

[0103] S401 and S402 are optional steps. If S401 and S402 are not performed, the terminal device may obtain the first configuration information and the second configuration information in another manner, which is not limited in the present application.

[0097]

[0104] The order in which S401 and S402 are performed is not limited, and S401 and S402 may be performed sequentially or simultaneously.

[0098]

[0105] S403: The access network device determines a paging hyperframe.

[0099]

[0106] S404: The terminal device determines a paging hyperframe.

[0100]

[0107] The order in which S403 and S404 are performed is not limited, and S403 and S404 may be performed sequentially or simultaneously.

[0101]

[0108] At S404, the terminal device is in an RRC inactive mode.

[0102]

[0109] The paging hyperframe in S403 and S404 may be a hypersystem frame including a first PTW and a second PTW. If the first eDRX cycle is equal to the second eDRX cycle, the first paging hyperframe including the first PTW and the second paging hyperframe including the second PTW coincide or overlap. The first paging hyperframe and the second paging hyperframe are actually the same hypersystem frame, and the first PTW and the second PTW are located within the same paging hyperframe.

[0103]

[0110] If the first eDRX cycle is not equal to the second eDRX cycle, the first and second paging hyperframes coincide or overlap by a certain amount of hypersystem frames. In other words, the hypersystem frame number of the first paging hyperframe is the same as the hypersystem frame number of the second paging hyperframe, and the first and second PTWs are located within the same paging hyperframe. The value of the certain amount may be the least common multiple of the first and second eDRX cycles.

[0104]

[0111] For example, as shown in Figure 5, assume that the UE_ID_H value is 4, the first eDRX cycle is four hypersystem frames, and the second eDRX cycle is two hypersystem frames. In the above equation (1), the H-SFNs of the first paging hyperframes are 0, 4, 8, 12, etc., in order. In other words, the hypersystem frames with hypersystem frame numbers 0, 4, 8, 12, etc., include the first PTW. The H-SFNs of the second paging hyperframes are 0, 2, 4, 8, 10, 12, etc., in order. In other words, the hypersystem frames with hypersystem frame numbers 0, 2, 4, 8, 10, 12, etc., include the second PTW. In an interval of four hypersystem frames, the first PTW and the second PTW are located within the same paging hyperframe. For example, in the figure, each of the hyper system frames with H-SFNs 0, 4, 8, 12, etc. includes a first PTW and a second PTW.

[0105]

[0112] In this application, there may be multiple implementations of how to specifically determine the paging hyperframe.

[0106]

[0113] In a first implementation, the paging hyperframe is determined based on a first eDRX cycle. The first eDRX cycle may be set by the core network. In this implementation, the first eDRX cycle may be greater than 10.24 seconds, and the second eDRX cycle may be longer than 10.24 seconds.

[0107]

[0114] The hyper system frame number (H-SFN) of the paging hyperframe satisfies the following format:

number

[0108]

[0115] T eDRX,CNindicates the first eDRX cycle. mod indicates modulo operation. UE_ID_H is determined based on the identifier of the terminal device. For example, UE_ID_H is the most significant 13 bits of the hash identifier, and the hash identifier is determined based on the identification information of the terminal device. For example, if the identification information of the terminal device is the S-TMSI, the least significant 32 bits of the S-TMSI are used, and the 32-bit frame check sequence is used as the hash identifier.

[0109]

[0116] In this implementation, the paging hyperframe of the CN paging message is a hypersystem frame in which the first paging hyperframe and the second paging hyperframe coincide or overlap, and the paging hyperframe of the CN paging message includes the first PTW and the second PTW.

[0110]

[0117] In this implementation, the first eDRX cycle is greater than or equal to the second eDRX cycle.

[0111]

[0118] In a second implementation, the paging hyperframe is determined based on the least common multiple of the first eDRX cycle and the second eDRX cycle, or the paging hyperframe is determined based on the maximum value of the first eDRX cycle and the second eDRX cycle, and the second eDRX cycle may be configured by the core network.

[0112]

[0119] In this implementation, the first eDRX cycle may be greater than 10.24 seconds and the second eDRX cycle may be greater than 10.24 seconds.

[0113]

[0120] For example, in this implementation, the hyper system frame number H-SFN of the paging hyperframe satisfies the following format:

number

[0114]

[0121] T X represents the least common multiple of the first eDRX cycle and the second eDRX cycle, or T X represents the maximum value of the first eDRX cycle and the second eDRX cycle, UE_ID_H is determined based on the identifier of the terminal device, and mod represents a modulo operation.

[0115]

[0122] S405: The access network device transmits scheduling information of the first paging message or scheduling information of the second paging message within a time window of a paging hyperframe.

[0116]

[0123] S406: The terminal device monitors the scheduling information of the first paging message and the scheduling information of the second paging message within a time window of the paging hyperframe.

[0117]

[0124] In this application, the terminal device monitoring the scheduling information of the paging message may also mean that the terminal device monitors the paging message.

[0118]

[0125] In the present application, when an access network device determines to page a terminal device, the access network device transmits the scheduling information of the first paging message or the scheduling information of the second paging message within the time window of the paging hyperframe. For example, for a first paging message (i.e., a CN paging message), the access network device receives the first paging message from the core network and determines to page the terminal device, and transmits the scheduling information of the first paging message within the time window of the paging hyperframe. For a second paging message (i.e., a RAN paging message), when the access network device receives data or signaling that needs to be sent to the terminal device, the access network device determines to page the terminal device, and transmits the scheduling information of the second paging message within the time window of the paging hyperframe. The above is merely an example, and there are other cases where a terminal device needs to be paged via a paging message. Here, specific examples will not be described one by one.

[0119]

[0126] Correspondingly, the terminal device does not monitor the scheduling information of the first paging message within the first PTW of the paging hyperframe, nor does it monitor the scheduling information of the second paging message within the second PTW of the paging hyperframe, but monitors the scheduling information of the first paging message and the scheduling information of the second paging message within the time window of the paging hyperframe.

[0120]

[0127] This is because an access network device may schedule only one type of paging message within one paging hyperframe. Specifically, a paging hyperframe includes a first PTW and a second PTW, but in the time window of the paging hyperframe, an access network device may only transmit the scheduling information of the first paging message or the scheduling information of the second paging message within the time window.

[0121]

[0128] In the case of a terminal device, since the terminal device cannot determine whether a paging message exists for paging the terminal device or determine the type of the paging message, when the paging hyperframe includes a first PTW and a second PTW, the terminal device monitors the scheduling information of the first paging message and the scheduling information of the second paging message in the time window of the paging hyperframe.

[0122]

[0129] The present application does not limit how the access network device schedules the paging message. For example, the scheduling information may be downlink control information (DCI) scrambled using a paging radio network temporary identity (P-RNTI). When the access network device decides to transmit a paging message, it may transmit the DCI scrambled using the P-RNTI on the PDCCH in the PO within the time window. The DCI is used to schedule the paging message. When transmitting the DCI, the access network device also transmits the paging message on a physical downlink shared channel (PDSCH) scheduled using the DCI. The specific process will not be described again.

[0123]

[0130] Accordingly, the terminal device monitors the DCI in the PO within the time window of the paging hyperframe. If the terminal device receives the DCI scrambled using the P-RNTI on the PDCCH in the PO, the terminal device receives a paging message on the PDSCH scheduled using the DCI. The terminal device can determine whether the paging message is a first paging message or a second paging message based on the specific content of the received paging message.

[0124]

[0131] The time window of the paging hyperframe further includes a paging frame. The scheduling information for the first paging message and the scheduling information for the second paging message are located within the paging frame of the time window, and the paging frame includes paging occasions for the scheduling information for the first paging message and the scheduling information for the second paging message. In other words, the paging occasions are located within the paging frame, or the starting positions of the paging occasions are located within the paging frame. In this application, there may be multiple implementations in which the terminal device determines the time window within the paging hyperframe and determines the paging frame and paging occasion within the time window. Each implementation is described below.

[0125]

[0132] Example 1 The time window is determined based on the first and second PTWs. Specifically, the length of the time window is equal to the longest length of the first and second PTWs. The start position of the time window in the paging hyperframe is equal to the start position of the PTW with the longest length among the first and second PTWs in the paging hyperframe, and the end position of the time window in the paging hyperframe is equal to the end position of the PTW with the longest length among the first and second PTWs in the paging hyperframe. If the length of the first PTW is equal to the length of the second PTW, the start position of the time window is equal to the start position of the first PTW. In other words, if the length of the first PTW is equal to or greater than the length of the second PTW, the start position of the time window in the paging hyperframe is determined based on the first eDRX cycle. Alternatively, if the length of the first PTW is less than the length of the second PTW, the start position of the time window in the paging hyperframe is determined based on the second eDRX cycle.

[0126]

[0133] For example, as shown in FIG. 6(a), in a paging hyperframe, the SFN of the system frame in which the start position of the first PTW determined based on the first eDRX cycle is located is 512, and the length of the first PTW is 384 SFNs. In the paging hyperframe, the SFN of the system frame in which the start position of the second PTW determined based on the second eDRX cycle is located is 128, and the length of the second PTW is 128 SFNs. Because the length of the first PTW is longer than the length of the second PTW, as shown in FIG. 6(b), the start position of the time window in which the terminal device actually monitors is equal to the start position of the first PTW, and the SFN of the start position of the time window is 512, and the length of the time window is 384 SFNs. The terminal device monitors the scheduling information of the first paging message and the scheduling information of the second paging message during the time windows.

[0127]

[0134] In the first embodiment, there are multiple implementations for determining the paging frame and paging occasion in the time window. Each implementation will be described below.

[0128]

[0135] In a first implementation, the paging frame is determined based on a first parameter T1, and the first parameter T1 is determined based on at least one of a default DRX cycle, a first DRX cycle corresponding to the first paging message, and a second DRX cycle corresponding to the second paging message.

[0129]

[0136] The default DRX cycle is from the system information broadcast by the access network device. For example, the access network device may transmit the default DRX cycle to the terminal device via system information block 1 (SIB1). The first DRX cycle may be assigned by the core network, or the core network may not assign the first DRX cycle. The second DRX cycle may be assigned by the access network, or the access network may not assign the second DRX cycle.

[0130]

[0137] For example, if the core network assigns a first DRX cycle and the access network assigns a second DRX cycle, the first parameter T1 may be the minimum value among the default DRX cycle, the first DRX cycle, and the second DRX cycle. If the core network assigns the first DRX cycle and the access network does not assign the second DRX cycle, the first parameter T1 may be the minimum value among the default DRX cycle and the first DRX cycle. If the core network does not assign the first DRX cycle and the access network assigns the second DRX cycle, the first parameter T1 may be the minimum value among the default DRX cycle and the second DRX cycle. If the core network does not assign the first DRX cycle and the access network does not assign the second DRX cycle, the first parameter T1 may be the default DRX cycle.

[0131]

[0138] For example, a system frame corresponding to an SFN that is within a time window and satisfies the following formula is a paging frame:

number

[0132]

[0139] T1 represents the first parameter. PF_offset is an offset used to determine the paging frame and is set by the access network device. For example, it is carried in SIB1 sent by the access network device. UE_ID is determined based on the terminal device's identification information. For example, the terminal device's identification information is the terminal device's 5G S-TMSI. The lower 10 bits (non-eDRX mode) or the lower 12 bits (eDRX mode) of the 5G S-TMSI are used. div represents a division operation.

[0133]

[0140] N1 in equation (7) is the total number of paging frames included in the paging cycle T1, and N1 in equation (7) may be determined based on the first parameter T1. For example, the network side may specify a relationship between N1 and T1, and the terminal device may determine a specific value of N1 based on the relationship. For example, the access network device may specify N1=T1 / 2, and the terminal device may determine the value of N1 based on the value of T1. For example, if T1=100 and the access network device specifies N1=T1 / 2, the terminal device may determine N1=100 / 2=50. The access network device may Set {T1,T1 / 2,T1 / 4,T1 / 8,T1 / 16,T1 / 32,T1 / 64,T1 / 128,T1 / 256} The access network device may select a relationship between N1 and T1 in SIB1 and indicate the relationship to the terminal device.

[0134]

[0141] For the meaning of the other parameters in equation (7), see the explanation of equation (6).

[0135]

[0142] Furthermore, an index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of a default DRX cycle and a first DRX cycle. Alternatively, an index of the paging occasion in the paging frame within the time window is equal to an index of the paging occasion in the paging frame in the first PTW, and the index of the paging occasion in the paging frame in the first PTW is determined based on the second parameter T2.

[0136]

[0143] For example, if the core network assigns the first DRX cycle, the second parameter T2 may be the minimum value between the default DRX cycle and the first DRX cycle, or if the core network does not assign the first DRX cycle, the second parameter T2 may be the default DRX cycle.

[0137]

[0144] For example, the index i_s of a paging occasion in a paging frame satisfies the following equation:

number

[0138]

[0145] Ns represents the total number of paging occasions included in one paging frame. The specific value of Ns may be indicated by the access network device in SIB1.

[0139]

[0146] N2 in equation (8) is the total number of paging frames included in the paging cycle T2, and N2 in equation (8) may be determined based on the second parameter T2. For example, the network side may specify a relationship between N2 and T2, and the terminal device may determine a specific value of N2 based on the relationship. For example, the access network device may specify N2=T2 / 2, and the terminal device may determine the value of N2 based on the value of T2. In a possible implementation, the access network device: Set {T2,T2 / 2,T2 / 4,T2 / 8,T2 / 16,T2 / 32,T2 / 64,T2 / 128,T2 / 256} The access network device may select a relationship between N2 and T2 in SIB1 and indicate the relationship to the terminal device.

[0140]

[0147] For the meaning of the other parameters in equation (8), see the explanation of equation (6).

[0141]

[0148] In a second implementation, the time window includes a preset position, and the preset position is determined based on the start position of the time window and the minimum length of the first PTW and the second PTW. For example, the length from the start position of the time window to the preset position is the minimum length of the first PTW and the second PTW.

[0142]

[0149] In this implementation, the time window can be divided into two parts: the first part is from the start position of the time window to the preset position, and the second part is from the preset position to the end position of the time window, where the end position of the time window is determined based on the start position and the length of the time window.

[0143]

[0150] If the length from the start position of the time window to the preset position is the shortest length among the lengths of the first PTW and the second PTW, a paging frame is determined based on the first parameter T1 in the period from the start position of the time window to the preset position, and a paging frame is determined based on the third parameter T3 in the period from the preset position to the end position of the time window.

[0144]

[0151] The third parameter T3 is determined based on at least one of a DRX cycle corresponding to a PTW having the smaller length of the first PTW and the second PTW and a default DRX cycle. For example, if the length of the first paging time window is equal to or greater than the length of the second paging time window, the third parameter T3 is determined based on at least one of the default DRX cycle and the first DRX cycle. For example, the third parameter T3 is the minimum of the default DRX cycle and the first DRX cycle. If the core network does not assign the first DRX cycle, the third parameter T3 may be the default DRX cycle. If the length of the first paging time window is shorter than the length of the second paging time window, the third parameter T3 is determined based on at least one of the default DRX cycle and the second DRX cycle. For example, the third parameter T3 is the minimum of the default DRX cycle and the second DRX cycle. If the access network does not allocate a second DRX cycle, the third parameter T3 may be the default DRX cycle.

[0145]

[0152] For example, if the length from the start position of the time window to the preset position is the shortest length among the lengths of the first PTW and the second PTW, then the system frame corresponding to the SFN that is within the time window during the period from the start position of the time window to the preset position and that satisfies the following formula is the paging frame:

number

[0146]

[0153] T1 represents the first parameter. For the meanings of the other parameters in (9), see the explanation of equation (6) or (7).

[0147]

[0154] If the length from the start position of the time window to the preset position is the shortest length of the lengths of the first PTW and the second PTW, then in the period from the preset position of the time window to the end position of the time window, a system frame corresponding to an SFN that is within the time window and satisfies the following formula is a paging frame:

number

[0148]

[0155] T3 represents a third parameter. N3 in Equation (10) is the total number of paging frames included in the paging cycle T3, and N3 in Equation (10) may be determined based on the third parameter T3. For example, the network side may specify a relationship between N3 and T3, and the terminal device may determine a specific value of N3 based on the relationship. In a possible implementation, the access network device: Set {T3,T3 / 2,T3 / 4,T3 / 8,T3 / 16,T3 / 32,T3 / 64,T3 / 128,T3 / 256} The access network device may select a relationship between N3 and T3 and indicate the relationship to the terminal device. The access network device may specify the relationship between N3 and T3 in the SIB. For the meanings of the other parameters in Equation (10), see the explanation of Equation (6) or Equation (7).

[0149]

[0156] Furthermore, in the paging frames within the period from the start position of the time window to the preset position, the index of the paging occasion in the paging frame is determined based on the second parameter T2, and in the paging frames within the period from the preset position of the time window to the end position of the time window, the index of the paging occasion in the paging frame is determined based on the third parameter T3.

[0150]

[0157] The second parameter T2 is determined based on at least one of a default DRX cycle and the first DRX cycle. For example, if the core network assigns the first DRX cycle, the second parameter T2 may be the minimum value of the default DRX cycle and the first DRX cycle. If the core network does not assign the first DRX cycle, the second parameter T2 may be the default DRX cycle.

[0151]

[0158] For example, the index i_s of a paging occasion in a paging frame satisfies the following equation:

number

[0152]

[0159] Ns represents the total number of paging occasions included in one paging frame, and the specific value of Ns is set by the access network device, and can be specified by the access network device in the SIB, for example. N is the total number of paging frames included in the paging cycle T. For the method of determining N2, see the description of equation (8).

[0153]

[0160] If the paging frame in which the paging occasion is located is within the period from the start of the time window to the preset position, then N=N2. See the explanation of equation (8) for how to determine N2.

[0154]

[0161] If the paging frame in which the paging occasion is located is within the period from the preset position of the time window to the end position of the time window, then N=N3. See the explanation of equation (10) for how to determine N3.

[0155]

[0162] For the meaning of the other parameters in equation (11), see the explanation of equation (6).

[0156]

[0163] Example 2 The time window is determined based on the first PTW. Specifically, the length of the time window is equal to the length of the first PTW. The start position of the time window in the paging hyperframe is equal to the start position of the first PTW in the paging hyperframe, and the end position of the time window in the paging hyperframe is equal to the end position of the first PTW in the paging hyperframe. In other words, the start position of the time window in the paging hyperframe is determined based on the first eDRX cycle.

[0157]

[0164] In the second embodiment, the paging frame in the time window is determined based on a first parameter T1, the specific content of which is described above.

[0158]

[0165] For example, a system frame corresponding to an SFN that satisfies the above-mentioned equation (7) and is within the time window is a paging frame.

[0159]

[0166] In addition, the index of the paging occasion in the paging frame is determined based on the second parameter T2, for details of the second parameter T2, please refer to the above description.

[0160]

[0167] For example, the index i_s of the paging occasion in the paging frame satisfies the above-mentioned equation (8).

[0161]

[0168] Example 3 The time window is determined based on the first PTW. Specifically, the length of the time window is equal to the longest length of the first PTW and the second PTW. The start position of the time window in the paging hyperframe is equal to the start position of the first PTW in the paging hyperframe. In other words, the start position of the time window in the paging hyperframe is determined based on the first eDRX cycle.

[0162]

[0169] In Example 3, the time window includes a preset position, and the preset position is determined based on the start position of the time window and the minimum length of the first PTW and the second PTW. For example, the length from the start position of the time window to the preset position is the minimum length of the first PTW and the second PTW.

[0163]

[0170] If the length from the start position of the time window to the preset position is the shortest length among the lengths of the first PTW and the second PTW, the paging frame is determined based on the first parameter T1 in the period from the start position of the time window to the preset position, and the paging frame is determined based on the third parameter T3 in the period from the preset position to the end position of the time window.

[0164]

[0171] For example, in the period from the start position of the time window to the preset position, a system frame corresponding to an SFN that satisfies the above-mentioned equation (9) and is within the time window is a paging frame.

[0165]

[0172] During the period from the preset position of the time window to the end position of the time window, the system frame corresponding to the SFN that satisfies the above equation (10) and is within the time window is a paging frame.

[0166]

[0173] Furthermore, when the length from the start position of the time window to the preset position is the shortest length among the lengths of the first PTW and the second PTW, in the paging frame in the period from the start position of the time window to the preset position, the index of the paging occasion in the paging frame is determined based on the second parameter T2, and in the paging frame in the period from the preset position of the time window to the end position of the time window, the index of the paging occasion in the paging frame is determined based on the third parameter T3.

[0167]

[0174] For example, if the length from the start position of the time window to the preset position is the shortest length among the lengths of the first PTW and the second PTW, the index of the paging occasion in the paging frame during the period from the start position of the time window to the preset position satisfies the above-mentioned equation (11), where N in equation (11) is equal to N2. For the method of determining N2, see the explanation of equation (8).

[0168]

[0175] In the period from the preset position of the time window to the end position of the time window, the index of the paging occasion in the paging frame satisfies the above equation (11), where N is equal to N3. For the method of determining N3, see the explanation of equation (10).

[0169]

[0176] According to the method provided in the present application, the terminal device can simultaneously monitor a first paging message initiated by the CN and a second paging message initiated by the RAN in a time window of a paging hyperframe, thereby reducing the number of times the terminal device needs to wake up, thereby reducing the power consumption of the terminal device and increasing the standby time of the terminal device.

[0170]

[0177] In the above-described embodiments provided in the present application, the methods provided in the embodiments of the present application are described in terms of interactions between devices. To realize the functions of the methods provided in the embodiments of the present application, the access network device or the terminal device includes a hardware structure and / or a software module, and the functions can be realized in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Whether the functions among the above-described functions are implemented using a hardware structure, a software module, or a combination of a hardware structure and a software module depends on the specific application and design constraints of the technical solution.

[0171]

[0178] In this embodiment of the present application, the module division is an example and merely represents a logical division of functions. In actual implementation, other division methods may be used. Furthermore, the functional modules in the embodiment of the present application may be integrated into a single processor, may exist physically alone, or two or more modules may be integrated into a single module. The integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0172]

[0179] Similar to the above concept, an embodiment of the present application further provides a communication device 700 configured to implement the functions of an access network device or a terminal device in the above manner, as shown in FIG. 7. For example, the device may be a software module or a chip system. In this embodiment of the present application, the chip system may include a chip, or may include a chip and other discrete elements. The communication device 700 may include a processing unit 701 and a communication unit 702.

[0173]

[0180] Hereinafter, the communication device provided in this embodiment of the present application will be described in detail with reference to Figures 7 and 8. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, for the contents not described in detail, please refer to the method embodiment. For the sake of brevity, the details will not be described again here.

[0174]

[0181] In this embodiment of the present application, the communication unit may also be referred to as a transceiver unit and may include a transmitting unit and / or a receiving unit, each configured to perform the transmitting and receiving steps of the access network device or the terminal device in the aforementioned method embodiments. Optionally, an element within the communication unit 702 configured to implement a receiving function may be considered a receiving unit, and an element within the communication unit 702 configured to implement a transmitting function may be considered a transmitting unit. In other words, the communication unit 702 includes a receiving unit and a transmitting unit. The communication unit may sometimes be referred to as a transceiver device, transceiver, transceiver circuit, or the like. The receiving unit may sometimes be referred to as a receiving device, receiver, receiving circuit, or the like. The transmitting unit may sometimes be referred to as a transmitting device, transmitter, transmitting circuit, or the like. The processing unit may also be referred to as a processor, processing board, processing module, processing device, or the like.

[0175]

[0182] When the communication device 700 performs the function of the terminal device in this embodiment of the present application, the processing unit is configured to determine a paging hyperframe, the paging hyperframe being determined based on a first extended discontinuous reception cycle set by the core network, the paging hyperframe being determined based on a least common multiple of the first extended discontinuous reception cycle and a second extended discontinuous reception cycle set by the access network, or the paging hyperframe being determined based on a maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, the second extended discontinuous reception cycle being greater than 10.24 seconds; and the communication unit is configured to monitor scheduling information of the first paging message and scheduling information of the second paging message within a time window of the paging hyperframe; The time window is determined based on the first paging time window and the second paging time window, or the time window is determined based on the first paging time window; a start position of the first paging time window is determined based on the first extended discontinuous reception cycle, and a start position of the second paging time window is determined based on the second extended discontinuous reception cycle; and The first paging message is initiated by the core network and the second paging message is initiated by the access network.

[0176]

[0183] When the communication device 700 performs the functions of the access network device in this embodiment of the present application, the processing unit is configured to determine a paging hyperframe, the paging hyperframe being determined based on the least common multiple of the first extended discontinuous reception cycle and a second extended discontinuous reception cycle set by the access network, or the paging hyperframe being determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, the second extended discontinuous reception cycle being greater than 10.24 seconds; and The communication unit is configured to transmit the scheduling information of the first paging message or the scheduling information of the second paging message within a time window of the paging hyperframe; The time window is determined based on the first paging time window and the second paging time window, or the time window is determined based on the first paging time window; a start position of the first paging time window is determined based on the first extended discontinuous reception cycle, and a start position of the second paging time window is determined based on the second extended discontinuous reception cycle; and The first paging message is initiated by the core network and the second paging message is initiated by the access network.

[0177]

[0184] The above is merely an example. The processing unit 701 and the communication unit 702 may also perform other functions. For detailed descriptions, please refer to the relevant description of the method embodiment shown in Figure 4. The details will not be described again here.

[0178]

[0185] 8 is a configuration diagram of a communication device according to an embodiment of the present application. The communication device shown in FIG. 8 may be a hardware circuit implementation of the communication device shown in FIG. 8. The communication device is applicable to the above-mentioned flowcharts and performs the functions of a terminal device or an access network device in the above-mentioned method embodiments. For ease of explanation, FIG. 8 shows only the main components of the communication device.

[0179]

[0186] 8, the communication device 800 includes a processor 810 and an interface circuit 820. The processor 810 and the interface circuit 820 are coupled to each other. The interface circuit 820 may be a transceiver or an input / output interface. Optionally, the communication device 800 may further include a memory 830 configured to store instructions to be executed by the processor 810, to store input data for the processor 810 to execute the instructions, or to store data generated after the processor 810 executes the instructions.

[0180]

[0187] When the communication device 800 is configured to perform the method shown in FIG. 4, the processor 810 is configured to perform the functions of the processing unit 701 and the interface circuit 820 is configured to perform the functions of the communication unit 702.

[0181]

[0188] If the communication device is a chip used in a terminal device, the chip in the terminal device implements the functions of the terminal device in the above-mentioned method embodiments. The chip in the terminal device receives information from another module (e.g., a radio frequency module or an antenna) in the terminal device, and the information is transmitted to the terminal device by the access network device. Alternatively, the chip in the terminal device transmits information to another module (e.g., a radio frequency module or an antenna) in the terminal device, and the information is transmitted to the access network device by the terminal device.

[0182]

[0189] If the communication device is a chip used in an access network device, the chip in the access network device implements the functions of the access network device in the aforementioned method embodiments. The chip in the access network device receives information from another module (e.g., a radio frequency module or an antenna) in the access network device, and the information is transmitted by the terminal device to the access network device. Alternatively, the chip in the access network device transmits information to another module (e.g., a radio frequency module or an antenna) in the access network device, and the information is transmitted by the access network device to the terminal device.

[0183]

[0190] It will be understood that the processor in embodiments of the present application may be a Central Processing Unit (CPU), or may be another general-purpose processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0184]

[0191] The memory in the embodiments of the present application may be Random Access Memory (RAM), Flash memory, Read-Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), registers, a hard disk drive, a removable hard disk, a CD-ROM, or any other form of storage medium known in the art. For example, the storage medium may be coupled to the processor such that the processor can read information from and write information to the storage medium. Of course, the storage medium may be components of the processor. The processor and the storage medium may be located in an ASIC. Further, the ASIC may be located in an access network device or a terminal device. Of course, the processor and the storage medium may reside as separate components in the access network device or the terminal device.

[0185]

[0192] Those skilled in the art will appreciate that the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of a hardware-only embodiment, a software-only embodiment, or an embodiment that combines software and hardware. Furthermore, the present application may take the form of a computer program product embodied in one or more computer-usable storage media (including, but not limited to, disk memory, optical memory, and the like) that contain computer-usable program code.

[0186]

[0193] This application has been described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to this application. It should be understood that computer program instructions may be used to implement each process and / or each block in the flowcharts and / or block diagrams, and combinations of processes and / or blocks in the flowcharts and / or block diagrams. These computer program instructions may be provided for a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or some other programmable data processing device to cause a machine, such that the instructions executed by the processor or computer of some other programmable data processing device cause an apparatus to perform the specified functions in one or more processes in the flowcharts and / or one or more blocks in the block diagrams.

[0187]

[0194] These computer program instructions may be stored in a computer-readable memory capable of instructing a computer or any other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable memory may produce an artifact that includes an instruction apparatus that implements a particular function in one or more processes in the flowcharts and / or one or more blocks in the block diagrams.

[0188]

[0195] It is apparent that those skilled in the art can make various modifications and variations to the present application without departing from the scope of the present application, and the present application is intended to cover such modifications and variations, provided that they fall within the scope of the claims of the present application and their equivalents.

Claims

1. 1. A method of communication comprising: determining a paging hyperframe, the paging hyperframe being determined based on a first extended discontinuous reception cycle set by a core network, the paging hyperframe being determined based on the least common multiple of the first extended discontinuous reception cycle and a second extended discontinuous reception cycle set by an access network, or the paging hyperframe being determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, the second extended discontinuous reception cycle being greater than 10.24 seconds; and monitoring scheduling information of a first paging message and scheduling information of a second paging message within a time window of the paging hyperframe; wherein the time window is determined based on a first paging time window and a second paging time window, or the time window is determined based on the first paging time window; a start position of the first paging time window is determined based on the first extended discontinuous reception cycle, and a start position of the second paging time window is determined based on the second extended discontinuous reception cycle; and The method, wherein the first paging message is initiated by the core network and the second paging message is initiated by the access network.

2. 2. The method of claim 1, wherein the time window is determined based on a first paging time window and the second paging time window, further comprising: if the length of the first paging time window is greater than or equal to the length of the second paging time window, determining a start position of the time window in the paging hyperframe based on the first extended discontinuous reception cycle; or if a length of the first paging time window is less than a length of the second paging time window, determining a start position of the time window in the paging hyperframe based on the second extended discontinuous reception cycle; A method comprising:

3. 3. The method of claim 2, wherein the length of the time window is equal to the maximum length of the first paging time window and the second paging time window.

4. 2. The method of claim 1, wherein the time window is determined based on the first paging time window by: a start position of the time window in the paging hyperframe equal to a start position of the first paging time window in the paging hyperframe.

5. 5. The method of claim 4, wherein the length of the time window is equal to the length of the first paging time window.

6. 5. The method of claim 4, wherein the length of the time window is equal to the maximum length of the first paging time window and the second paging time window.

7. 7. The method according to claim 1, wherein the scheduling information of the first paging message and the scheduling information of the second paging message are located in a paging frame of the time window; The method, wherein the paging frame is determined based on a first parameter T1, the first parameter T1 is determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, and the default discontinuous reception cycle is from system information broadcast by an access network device.

8. 8. The method of claim 7, wherein the paging frame includes paging occasions of the scheduling information of the first paging message and the scheduling information of the second paging message, and an index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle.

9. 7. The method according to claim 1, wherein the scheduling information of the first paging message and the scheduling information of the second paging message are located in a paging frame of the time window; The paging frame is determined based on a first parameter T1 within a period from a start position of the time window to a preset position, the first parameter T1 being determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, and the preset position being determined based on a start position of the time window and a smaller length of the first paging time window and a length of the second paging time window; and the paging frame is determined within a period from the preset position to an end position of the time window based on a third parameter T3, the third parameter T3 being determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle when a length of the first paging time window is equal to or greater than a length of the second paging time window, or the third parameter T3 being determined based on at least one of the default discontinuous reception cycle and the second discontinuous reception cycle when a length of the first paging time window is less than a length of the second paging time window; and the end position of the time window is determined based on a start position of the time window and a length of the time window.

10. 10. The method of claim 9, wherein the paging frame includes paging occasions of the scheduling information of the first paging message and the scheduling information of the second paging message, and an index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle; or The index of the paging occasion in the paging frame is determined based on the third parameter T2.

11. 11. The method according to claim 1, wherein when the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or when the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, a hyper system frame number H-SFN of the paging hyperframe is in the following format: H-SFN mod TX=(UE_ID_H mod TX) wherein TX represents the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle or the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, UE_ID_H is determined based on an identifier of the terminal device, and mod represents a modulo operation.

12. 1. A method of communication comprising: determining a paging hyperframe, wherein the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and a second extended discontinuous reception cycle set by an access network, or the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, and the second extended discontinuous reception cycle is greater than 10.24 seconds; and transmitting scheduling information of the first paging message or scheduling information of the second paging message within a time window of the paging hyperframe; wherein the time window is determined based on a first paging time window and a second paging time window, or the time window is determined based on the first paging time window; a start position of the first paging time window is determined based on the first extended discontinuous reception cycle, and a start position of the second paging time window is determined based on the second extended discontinuous reception cycle; and The method, wherein the first paging message is initiated by the core network and the second paging message is initiated by the access network.

13. 13. The method of claim 12, wherein the time window is determined based on a first paging time window and the second paging time window, further comprising: if the length of the first paging time window is greater than or equal to the length of the second paging time window, determining a start position of the time window in the paging hyperframe based on the first extended discontinuous reception cycle; or if a length of the first paging time window is less than a length of the second paging time window, determining a start position of the time window in the paging hyperframe based on the second extended discontinuous reception cycle; A method comprising:

14. 14. The method of claim 13, wherein the length of the time window is equal to the maximum length of the first paging time window and the second paging time window.

15. 13. The method of claim 12, wherein the time window is determined based on the first paging time window, further comprising: a start position of the time window in the paging hyperframe equal to a start position of the first paging time window in the paging hyperframe.

16. 16. The method of claim 15, wherein the length of the time window is equal to the length of the first paging time window.

17. 16. The method of claim 15, wherein the length of the time window is equal to the maximum length of the first paging time window and the second paging time window.

18. 18. The method according to claim 12, wherein the scheduling information of the first paging message and the scheduling information of the second paging message are located in a paging frame of the time window; The method, wherein the paging frame is determined based on a first parameter T1, the first parameter T1 is determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, and the default discontinuous reception cycle is from system information broadcast by an access network device.

19. 20. The method of claim 18, wherein the paging frame includes paging occasions of the scheduling information of the first paging message and the scheduling information of the second paging message, and an index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle.

20. 20. The method according to claim 12, wherein the scheduling information of the first paging message and the scheduling information of the second paging message are located in a paging frame of the time window; The paging frame is determined based on a first parameter T1 within a period from a start position of the time window to a preset position, the first parameter T1 being determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, and the preset position being determined based on a start position of the time window and a smaller length of the first paging time window and a length of the second paging time window; and the paging frame is determined within a period from the preset position to an end position of the time window based on a third parameter T3, the third parameter T3 being determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle when a length of the first paging time window is equal to or greater than a length of the second paging time window, or the third parameter T3 being determined based on at least one of the default discontinuous reception cycle and the second discontinuous reception cycle when a length of the first paging time window is less than a length of the second paging time window; and the end position of the time window is determined based on a start position of the time window and a length of the time window.

21. 21. The method of claim 20, wherein the paging frame includes paging occasions of the scheduling information of the first paging message and the scheduling information of the second paging message, and an index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle; or The index of the paging occasion in the paging frame is determined based on the third parameter T2.

22. 22. The method according to claim 12, wherein when the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or when the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, a hyper system frame number H-SFN of the paging hyperframe is in the following format: H-SFN mod TX=(UE_ID_H mod TX) wherein TX represents the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle or the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, UE_ID_H is determined based on an identifier of the terminal device, and mod represents a modulo operation.

23. 1. A communications device comprising: a processing unit configured to determine a paging hyperframe, the paging hyperframe being determined based on a first extended discontinuous reception cycle set by a core network, the paging hyperframe being determined based on a least common multiple of the first extended discontinuous reception cycle and a second extended discontinuous reception cycle set by an access network, or the paging hyperframe being determined based on a maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, the second extended discontinuous reception cycle being greater than 10.24 seconds; and a communication unit configured to monitor scheduling information of a first paging message and scheduling information of a second paging message within a time window of the paging hyperframe; wherein the time window is determined based on a first paging time window and the second paging time window, or the time window is determined based on the first paging time window; a start position of the first paging time window is determined based on the first extended discontinuous reception cycle, and a start position of the second paging time window is determined based on the second extended discontinuous reception cycle; and The first paging message is initiated by the core network and the second paging message is initiated by the access network.

24. 24. The apparatus of claim 23, wherein the time window is determined based on a first paging time window and the second paging time window by: if the length of the first paging time window is greater than or equal to the length of the second paging time window, determining a start position of the time window in the paging hyperframe based on the first extended discontinuous reception cycle; or if a length of the first paging time window is less than a length of the second paging time window, determining a start position of the time window in the paging hyperframe based on the second extended discontinuous reception cycle; 1. An apparatus comprising:

25. 25. The apparatus of claim 24, wherein the length of the time window is equal to the maximum length of the first paging time window and the second paging time window.

26. 24. The apparatus of claim 23, wherein the time window is determined based on the first paging time window by: a start position of the time window in the paging hyperframe equals a start position of the first paging time window in the paging hyperframe.

27. 27. The apparatus of claim 26, wherein the length of the time window is equal to the length of the first paging time window.

28. 27. The apparatus of claim 26, wherein the length of the time window is equal to the maximum length of the first paging time window and the second paging time window.

29. 29. The apparatus according to any one of claims 23 to 28, wherein the scheduling information of the first paging message and the scheduling information of the second paging message are located in a paging frame of the time window; The paging frame is determined based on a first parameter T1, the first parameter T1 is determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, and the default discontinuous reception cycle is from system information broadcast by an access network device.

30. 30. The apparatus of claim 29, wherein the paging frame includes paging occasions for the first paging message and the second paging message, and an index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle.

31. 29. The apparatus according to any one of claims 23 to 28, wherein the scheduling information of the first paging message and the scheduling information of the second paging message are located in a paging frame of the time window; The paging frame is determined based on a first parameter T1 within a period from a start position of the time window to a preset position, the first parameter T1 being determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, and the preset position being determined based on a start position of the time window and a smaller length of the first paging time window and a length of the second paging time window; and the paging frame is determined within a period from the preset position to an end position of the time window based on a third parameter T3, the third parameter T3 being determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle when a length of the first paging time window is equal to or greater than a length of the second paging time window, or the third parameter T3 being determined based on at least one of the default discontinuous reception cycle and the second discontinuous reception cycle when a length of the first paging time window is less than a length of the second paging time window; and the end position of the time window is determined based on a start position of the time window and a length of the time window.

32. 32. The apparatus of claim 31, wherein the paging frame includes paging occasions of the first paging message scheduling information and the second paging message scheduling information, and an index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle; or The index of the paging occasion in the paging frame is determined based on the third parameter T2.

33. 33. The apparatus according to claim 23, wherein when the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or when the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, a hyper system frame number H-SFN of the paging hyperframe has the following format: H-SFN mod TX=(UE_ID_H mod TX) wherein TX represents the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, UE_ID_H is determined based on an identifier of the terminal device, and mod represents a modulo operation.

34. 1. A communications device comprising: a processing unit configured to determine a paging hyperframe, wherein the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and a second extended discontinuous reception cycle set by an access network, or the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, and the second extended discontinuous reception cycle is greater than 10.24 seconds; and a communication unit configured to transmit scheduling information of the first paging message or scheduling information of the second paging message within a time window of the paging hyperframe; wherein the time window is determined based on a first paging time window and a second paging time window, or the time window is determined based on the first paging time window; a start position of the first paging time window is determined based on the first extended discontinuous reception cycle, and a start position of the second paging time window is determined based on the second extended discontinuous reception cycle; and The first paging message is initiated by the core network and the second paging message is initiated by the access network.

35. 35. The apparatus of claim 34, wherein the time window is determined based on a first paging time window and the second paging time window by: if the length of the first paging time window is greater than or equal to the length of the second paging time window, determining a start position of the time window in the paging hyperframe based on the first extended discontinuous reception cycle; or if a length of the first paging time window is less than a length of the second paging time window, determining a start position of the time window in the paging hyperframe based on the second extended discontinuous reception cycle; 1. An apparatus comprising:

36. 36. The apparatus of claim 35, wherein the length of the time window is equal to the maximum length of the first paging time window and the second paging time window.

37. 35. The apparatus of claim 34, wherein the time window is determined based on the first paging time window by: a start position of the time window in the paging hyperframe equals a start position of the first paging time window in the paging hyperframe.

38. 38. The apparatus of claim 37, wherein the length of the time window is equal to the length of the first paging time window.

39. 38. The apparatus of claim 37, wherein the length of the time window is equal to the maximum length of the first paging time window and the second paging time window.

40. 40. The apparatus of claim 34, wherein the scheduling information of the first paging message and the scheduling information of the second paging message are located in a paging frame of the time window; The paging frame is determined based on a first parameter T1, the first parameter T1 is determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, and the default discontinuous reception cycle is from system information broadcast by an access network device.

41. 41. The apparatus of claim 40, wherein the paging frame includes paging occasions for the scheduling information of the first paging message and the scheduling information of the second paging message, and an index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle.

42. 42. The apparatus according to claim 34, wherein the scheduling information of the first paging message and the scheduling information of the second paging message are located in a paging frame of the time window; The paging frame is determined based on a first parameter T1 within a period from a start position of the time window to a preset position, the first parameter T1 being determined based on at least one of a default discontinuous reception cycle, a first discontinuous reception cycle corresponding to the first paging message, and a second discontinuous reception cycle corresponding to the second paging message, and the preset position being determined based on a start position of the time window and a smaller length of the first paging time window and a length of the second paging time window; and the paging frame is determined within a period from the preset position to an end position of the time window based on a third parameter T3, the third parameter T3 being determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle when a length of the first paging time window is equal to or greater than a length of the second paging time window, or the third parameter T3 being determined based on at least one of the default discontinuous reception cycle and the second discontinuous reception cycle when a length of the first paging time window is less than a length of the second paging time window; and the end position of the time window is determined based on a start position of the time window and a length of the time window.

43. 43. The apparatus of claim 42, wherein the paging frame includes paging occasions of the first paging message scheduling information and the second paging message scheduling information, and an index of the paging occasion in the paging frame is determined based on a second parameter T2, and the second parameter T2 is determined based on at least one of the default discontinuous reception cycle and the first discontinuous reception cycle; or The index of the paging occasion in the paging frame is determined based on the third parameter T2.

44. 44. The apparatus according to claim 34, wherein when the paging hyperframe is determined based on the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or when the paging hyperframe is determined based on the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, a hyper system frame number H-SFN of the paging hyperframe has the following format: H-SFN mod TX=(UE_ID_H mod TX) wherein TX represents the least common multiple of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, or the maximum value of the first extended discontinuous reception cycle and the second extended discontinuous reception cycle, UE_ID_H is determined based on an identifier of the terminal device, and mod represents a modulo operation.

45. A communications device including a processor and a memory, 23. A communications device, wherein the processor is configured to execute computer programs or instructions stored in the memory, and when the processor executes the computer programs or instructions, the method of any one of claims 1 to 22 is performed.

46. 23. A chip including a processor, the processor coupled to a memory and configured to execute computer programs or instructions stored in the memory, wherein execution of the computer programs or instructions by the processor performs the method of any one of claims 1 to 22.

47. 23. A computer readable storage medium storing instructions which, when executed on a computer, enable the computer to perform the method of any one of claims 1 to 22.

48. 23. A computer program product storing computer readable instructions which, when loaded and executed by a communications device, enable the communications device to perform a method according to any one of claims 1 to 22.

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