Paging method and related equipment

Abstract

The invention provides a paging method and related equipment, and belongs to the technical field of communication. The paging method is applied to the terminal equipment, and comprises the following steps: sending first information which is used for indicating the terminal equipment to support WUS capability or indicating WUS grouping information expected by the terminal equipment; receiving first configuration information, wherein the first configuration information comprises a WUS group corresponding to the terminal equipment; and monitoring the WUS before the PO according to the WUS support capability of the base station and the WUS group corresponding to the terminal equipment. According to the method, whether the corresponding terminal equipment needs to monitor paging or not is indicated by using the simpler WUS before the PO, so that the problem of over-high power consumption caused by the fact that the terminal equipment additionally monitors the paging message is solved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a paging method and related equipment. Background Art

[0002] In a mobile communication system, when a network device sends downlink data and / or updates system information to a terminal device in a non-connected state, the network device needs to page the terminal device. The traditional paging method requires all terminal devices to periodically monitor the physical downlink control channel (PDCCH) message, so the power consumption of the terminal device is relatively large. rd From release 15 (R15) to release 17 (R17) of the 3GPP (3rd Generation Partnership Project), 3GPP has been continuously studying paging optimization solutions in the standard evolution to reduce the energy consumption of terminal devices during the paging process.

[0003] Currently, the wake-up signal (WUS) and wake-up receiver (WUR) features of 3GPP specification 18 (release 18, R18) are under discussion. How to use WUS to further reduce paging power consumption has become a problem of widespread concern in the industry. Summary of the invention

[0004] The present application provides a paging method and related equipment, which solves the problem of excessive power consumption caused by terminal devices additionally monitoring paging messages by grouping terminal devices according to WUS and using a simpler WUS to indicate whether the terminal devices in the corresponding group need to monitor paging before PO.

[0005] In a first aspect, a paging method is provided, which is applied to a terminal device, and the method includes:

[0006] Sending first information, where the first information is used to indicate that the terminal device supports the wake-up signal WUS capability or the WUS grouping information expected by the terminal device;

[0007] Receive first configuration information, where the first configuration information includes a WUS group corresponding to the terminal device;

[0008] According to the WUS support capability of the base station and the WUS group corresponding to the terminal device, the WUS is monitored before the paging occasion PO.

[0009] In a possible implementation, the WUS support capability of the base station may include, for example, the number of WUS groups supported by the base station, or the number of WUS states supported by the base station. According to the WUS support capability of the base station and the WUS group corresponding to the paged terminal device, both the base station and the terminal device may obtain whether the base station supports the WUS group to which the paged terminal device belongs.

[0010] In one possible implementation, the terminal device monitors WUS before PO based on the WUS support capability of the base station and the WUS group corresponding to the terminal device. Specifically, it may include: the terminal device determines to monitor WUS before PO (that is, determines the paging monitoring method to monitor WUS first and then monitor PO) based on the WUS support capability of the base station and the group corresponding to the terminal device; then, the terminal device may monitor WUS before PO according to the determined paging monitoring method, and after monitoring the corresponding WUS, monitor the scheduling information of the PDCCH paging message of PO.

[0011] After the terminal device obtains its corresponding WUS group, it can obtain whether the base station supports the WUS group corresponding to the terminal device according to the WUS configuration of the base station. If the base station supports the WUS group corresponding to the terminal device, the terminal device can monitor WUS before PO, otherwise it can directly monitor PEI or directly monitor PO.

[0012] According to the paging method provided by this implementation, by introducing a simpler WUS, PEI and WUS are used to separately indicate whether it is necessary to monitor PO, so that some terminal devices, especially terminal devices that are not frequently paged, only need to determine whether it is necessary to monitor and decode PDCCH based on WUS, thereby saving resource consumption of the terminal devices.

[0013] In combination with the first aspect, in some implementations of the first aspect, the monitoring of WUS before PO according to the WUS support capability of the base station and the WUS group corresponding to the terminal device specifically includes:

[0014] When the base station supports the WUS grouping corresponding to the terminal device, the WUS is monitored before PO.

[0015] In combination with the first aspect, in some implementations of the first aspect, the method further includes:

[0016] When the base station does not support the WUS group corresponding to the terminal device, it monitors the PEI before PO, or directly monitors the physical downlink control channel PDCCH at PO.

[0017] In a possible implementation manner, the terminal device directly monitoring the PDCCH at the PO may specifically mean that the terminal device directly monitors the scheduling information of the PDCCH paging message at the PO.

[0018] In combination with the first aspect, in some implementations of the first aspect, the method further includes:

[0019] Second configuration information broadcast by the base station is received, where the second configuration information includes a WUS support capability of the base station.

[0020] In a possible implementation, the configuration information may also include the total number of groups of the paging occasion PO and / or the number of groups based on UE ID corresponding to the terminal device. The group based on UE ID may correspond to the PEI group mentioned below, for example.

[0021] In combination with the first aspect, in some implementations of the first aspect, the WUS support capability of the base station includes the number of WUS groups supported by the base station;

[0022] The monitoring of WUS before PO according to the WUS support capability of the base station and the WUS group corresponding to the terminal device specifically includes:

[0023] When the WUS group corresponding to the terminal device supported by the base station is obtained according to the number of WUS groups supported by the base station, WUS is monitored before PO.

[0024] In combination with the first aspect, in some implementations of the first aspect, when obtaining the WUS group corresponding to the terminal device supported by the base station according to the number of WUS groups supported by the base station, monitoring WUS before PO specifically includes:

[0025] When the number of WUS groups supported by the base station is equal to or greater than the number of WUS groups corresponding to the terminal device, WUS is monitored before PO.

[0026] In combination with the first aspect, in some implementations of the first aspect, the method further includes:

[0027] When the number of WUS groups supported by the base station is less than the number of WUS groups corresponding to the terminal device, PEI is monitored before PO, or PDCCH is monitored directly in PO.

[0028] In combination with the first aspect, in some implementations of the first aspect, the method further includes:

[0029] Obtaining a paging group corresponding to the terminal device;

[0030] When the WUS is monitored, the PDCCH is monitored at PO; or,

[0031] When the PEI is monitored, the PDCCH is monitored in PO.

[0032] In combination with the first aspect, in some implementations of the first aspect, the second configuration information may further include the total number of PO groups, the first configuration information also includes a CN group configured by the core network, and the obtaining of the paging group corresponding to the terminal device specifically includes:

[0033] The paging group corresponding to the terminal device is obtained according to the total number of groups of the PO and / or the CN group configured by the core network for the terminal device.

[0034] In combination with the first aspect, in some implementations of the first aspect, obtaining the paging group corresponding to the terminal device specifically includes:

[0035] The paging group corresponding to the terminal device is obtained according to the total number of groups of the PO and / or the CN group configured by the core network for the terminal device.

[0036] In combination with the first aspect, in some implementations of the first aspect, the method further includes:

[0037] receiving a group fallback indication message, where the group fallback indication message is used to instruct the terminal device to monitor WUS or PEI when the base station does not support the WUS group corresponding to the terminal device;

[0038] In response to the group fallback indication message, fall back to the PEI group corresponding to the terminal device to listen to the PEI.

[0039] In a possible implementation, the base station can instruct the terminal device to switch to other paging groups through a fallback indication message, that is, a paging group different from the paging group corresponding to the current terminal device can be specified for the terminal device. The terminal device can change the corresponding paging group in response to the fallback indication message, wherein the paging group after the terminal device changes can be a paging group supported by the base station WUS, at which time the terminal device can monitor WUS; or the paging group after the terminal device changes can be a paging group that is still not supported by the base station WUS, at which time the terminal device can monitor PEI, then the terminal devices that originally belonged to the same paging group as the terminal device (the paging group before the change) can reduce the resources consumed by monitoring.

[0040] In combination with the first aspect, in some implementations of the first aspect, the method further includes:

[0041] The WUS is monitored before each of the POs according to the paging cycle.

[0042] In a second aspect, a paging method is provided, which is applied to a base station, and the method includes:

[0043] Sending second configuration information to the terminal device, where the second configuration information includes the WUS support capability of the base station;

[0044] receiving a paging message, wherein the paging message includes a WUS group corresponding to the terminal device being paged;

[0045] According to the WUS support capability of the base station and the WUS group corresponding to the terminal device, WUS is sent before PO.

[0046] In combination with the second aspect, in some implementations of the second aspect, sending the WUS according to the WUS support capability of the base station and the WUS group corresponding to the paged terminal device specifically includes:

[0047] When the WUS group corresponding to the terminal device supported by the base station is obtained according to the number of WUS groups supported by the base station, the WUS is sent before the PO.

[0048] In combination with the second aspect, in some implementations of the second aspect, when obtaining the WUS group corresponding to the terminal device supported by the base station according to the number of WUS groups supported by the base station, sending the WUS before the PO specifically includes:

[0049] When the number of WUS groups supported by the base station is equal to or greater than the number of WUS groups corresponding to the terminal device, WUS is sent before PO.

[0050] In a possible implementation, when the number of WUS groups supported by the base station is equal to or greater than the number of WUS groups corresponding to the terminal device, it can be determined that the base station supports the WUS groups corresponding to the terminal device and sends WUS before PO.

[0051] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes:

[0052] When the number of WUS groups supported by the base station is less than the number of WUS groups corresponding to the terminal device, obtaining the WUS group corresponding to the terminal device that is not supported by the base station;

[0053] The PEI is sent before the PO, or the scheduling information of the PDCCH paging message is sent directly at the PO.

[0054] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes:

[0055] Receiving first information sent by a terminal device, where the first information is used to indicate a capability of the terminal device to support WUS or WUS grouping information expected by the terminal device;

[0056] Forwarding to the core network the capability of the terminal device to support WUS or the WUS grouping information expected by the terminal device;

[0057] Receiving WUS grouping information configured by the core network to the terminal device;

[0058] The WUS grouping information is sent to the terminal device.

[0059] In combination with the second aspect, in some implementations of the second aspect, the paging message further includes an identifier of the terminal device being paged, and the method further includes:

[0060] The identifier of the paged terminal device and the WUS grouping information corresponding to the paged terminal device are sent to other base stations.

[0061] In a third aspect, a terminal device is provided, including:

[0062] one or more processors;

[0063] one or more memories;

[0064] The one or more memories store one or more computer programs, and the one or more computer programs include instructions. When the instructions are executed by the one or more processors, the terminal device executes the method as described in any one of the first aspect or the second aspect above.

[0065] In a fourth aspect, a base station is provided, including:

[0066] one or more processors;

[0067] one or more memories;

[0068] The one or more memories store one or more computer programs, and the one or more computer programs include instructions. When the instructions are executed by the one or more processors, the base station executes a method as described in the second aspect or any one of the second aspects above.

[0069] In a fifth aspect, a communication system is provided, comprising a terminal device and a base station, wherein the terminal device is used to execute a method as described in any one of the first aspects above, and the base station is used to execute a method as described in any one of the second aspects above.

[0070] In a sixth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer-executable program instructions, and when the computer-executable program instructions are executed on a computer, the computer executes the method as described in any one of the above-mentioned first aspects.

[0071] In a seventh aspect, a computer program product is provided, the computer program product comprising a computer program code, and when the computer program code is run on a computer, the computer is caused to execute the method as described in any implementation manner of the first aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 A schematic diagram of a paging mechanism based on R15 is provided in an embodiment of the present application.

[0073] Figure 2 A schematic diagram of a paging scenario based on R15 is provided for an embodiment of the present application.

[0074] Figure 3 A schematic diagram of a paging mechanism based on R17 is provided in an embodiment of the present application.

[0075] Figure 4 An illustrative process for allocating PEI groups to terminal devices is provided in an embodiment of the present application.

[0076] Figure 5 A schematic structural diagram of a terminal device 100 provided in an embodiment of the present application.

[0077] Figure 6 This is a software structure block diagram of the terminal device 100 according to an embodiment of the present application.

[0078] Figure 7 A schematic flowchart of a paging method provided in an embodiment of the present application.

[0079] Figure 8 A schematic diagram of paging monitoring based on WUS provided in an embodiment of the present application.

[0080] Fig. 9 A schematic flowchart of another paging method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0081] It should be noted that the terms used in the implementation method part of the embodiments of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated obstacles, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more than two, "at least one" and "one or more" mean one, two or more than two.

[0082] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, it is defined that the "first" and "second" features may explicitly or implicitly include one or more of the features.

[0083] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing at different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0084] The technical solution of the present application is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0085] In order to better understand the paging method provided in the embodiment of the present application, the following first introduces the terms or definitions that may be involved below.

[0086] 1. Paging

[0087] Paging refers to the process of searching for terminal devices initiated by the network side. The triggering conditions of paging may include when the network side has signaling or data that needs to be sent to the terminal device. When the terminal device is in a non-connected state, the network side cannot directly send data to the terminal device, and even the network side cannot know the specific location of the terminal device. At this time, the network side needs to initiate a paging process. The purpose of paging is to notify the terminal device that the network side has signaling or data that needs to be sent to the terminal device. After receiving the paging message, the terminal device can actively trigger the establishment of a connection with the network side, so that the terminal device enters a connected state, thereby being able to exchange data with the network side.

[0088] The paging action initiated by the network side can be understood as the core network side sending a paging message to the base station, and the paging message may include the unique identification of the terminal equipment (UE ID). The paging message may be carried by the paging control channel (PCCH) mapped to the paging channel (PCH), and the PCH may be mapped to the physical downlink shared channel (PDSCH).

[0089] 2. Radio network temporary identity (RNTI)

[0090] RNTI is used to distinguish or identify different terminal devices in a connected state, a specific wireless channel, or a group of terminal devices in a paging situation in a wireless network.

[0091] 3GPP specification 38.321 defines multiple types of RNTI for new radio. Among them, paging RNTI (P-RNTI) is used by terminal devices to receive paging. P-RNTI is a common RNTI that may not be explicitly assigned to any terminal device. The cyclic redundancy check (CRC) of the PDCCH is scrambled by the P-RNTI to indicate that the current downlink control information (DCI) is the scheduling information of the paging message. When the terminal device successfully decodes the PDCCH, it can receive the paging message from the corresponding PDSCH according to the scheduling information of the paging message.

[0092] 3. Disconnected state

[0093] In the embodiment of the present application, the non-connected state may include an idle state and an inactive state. In the basic paging process specified in R15, when the terminal device is in the non-connected state, the terminal device may periodically receive a paging message.

[0094] 4. Paging early indication (PEI)

[0095] PEI is an indication information sent before the paging occasion (PO), and the indication information can be used to indicate whether there is PDCCH paging message scheduling information sent in the corresponding PO. Optionally, PEI can also be called early paging indication (EPI), or early indication of paging, or advanced paging indication, or can also be called other names, which is not limited in this application. PEI can be a certain DCI. During the paging process, the base station can carry indication information in the PEI to indicate to the terminal device which terminal device in which PEI group the paging is initiated. After receiving the PEI, the terminal device can determine whether it needs to monitor the paging message in the subsequent PO.

[0096] Combined with the introduction in the background technology, in the fourth generation mobile communication technology (4 th generation mobilecommunication technology, 4G) and fifth generation mobilecommunication technology (5 thIn the new generation mobile communication technology (5G), terminal devices in the radio resource control idle state (RRC-IDLE) and / or the inactive state (RRC-inactive) will periodically monitor paging, and then respond to the paging to initiate RRC connection establishment, recovery and other processes in order to carry out downlink services. One of the goals of periodic monitoring of paging itself is to avoid terminal devices from continuously monitoring downlink data and thus save resource consumption of terminal devices. Despite this, the standard evolution of 3GPP is still aimed at further studying the optimization scheme of paging and continuously reducing the energy consumption of terminal devices consumed by the paging process. For example, on the basis of traditional paging, R17 in 3GPP introduced the PEI technology that supports paging grouping, which groups terminal devices associated with a PO (the obtained group can be called a PEI group), and then performs paging indication based on the identifier of the PEI group, thereby reducing the probability of false paging alarms. In the discussion of 3GPP R18, further consideration is given to introducing a lower power wake-up signal WUS to save power consumption of terminal devices. Specifically, WUS can be introduced before PO, so that terminal devices (especially terminal devices that are not paged) can replace the traditional PDCCH detection in PO with a simpler WUS detection, thereby achieving the purpose of saving power consumption of receiving paging.

[0097] In order to better understand the paging method provided in the embodiment of the present application, the paging-related processes corresponding to R15 to R17 in 3GPP are introduced below.

[0098] First, if Figure 1As shown, it is a schematic diagram of the basic paging mechanism corresponding to R15. Specifically, when a terminal device in a non-connected state is paged by the network side (specifically, it can be a core network device, such as an access and mobility management function (AMF) module), the terminal device will wake up at its associated PO according to the paging cycle to monitor the scheduling information of the PDCCH paging message (such as time-frequency resources, modulation and decoding methods, etc.). The scheduling information is used to indicate how to obtain and decode subsequent PDSCH paging messages. Among them, the calculation of PO is related to the unique identification (user equipment identification, UE ID) of the terminal device and the paging cycle, and multiple terminal devices can share one PO. When PDCCH is monitored at PO, the terminal device can first use P-RNTI to decode PDCCH. If the decoding is successful, the paging message is received at the response PDSCH resource according to the scheduling information of the PDCCH paging message. If the terminal device receives a paging message, and the paging message includes the unique UE ID corresponding to the terminal device, the terminal device is paged, and the terminal device can initiate RRC connection establishment, recovery and other process responses to the base station to enter the connection state and receive downlink services; if the terminal device does not detect the P-RNTI-encrypted PDCCH, or the received paging message does not include the UE ID corresponding to the terminal device, the terminal device is not paged, and the terminal device does not need to monitor the PDSCH paging message and can continue to return to the sleep state.

[0099] Combination Figure 2 As shown, it should be noted that, since a PO is shared by multiple terminal devices, when a terminal device in the PO is paged, all terminal devices associated with the same PO need to monitor the paging message, that is, as long as one terminal device is paged, other associated terminal devices in the same PO need to further receive the PDSCH paging message. For these terminal devices, this situation is a paging false alarm, and the power consumption of receiving PDSCH is an unnecessary waste of power. Therefore, in order to further reduce the power consumption of idle terminal devices monitoring PDCCH, R17 proposes a PEI solution. The following is an introduction to the PEI solution proposed by R17 in conjunction with the accompanying drawings.

[0100] See also Figure 3, which is different from the paging scheme in R15, in the PEI scheme of R17, different terminal devices can be further subdivided into different groups (subgroups) (hereinafter collectively referred to as PEI groups), and each PEI group can correspond to a PEI ID. During the paging process, the PEI scheme based on R17 will insert a PEI opportunity (PEIoccasion, PEI-O) before each PO. In this PEI opportunity, the terminal device can obtain the PEI broadcast by the base station, and the PEI can include the ID corresponding to the PEI group to which the paged terminal device belongs. After decoding the PEI, the terminal device can determine whether it belongs to the paged PEI group based on the PEI group ID it carries. If the PEI group ID obtained by the terminal device is consistent with the PEI group ID to which it belongs, it can be determined that it needs to monitor and decode PDCCH in PO in the future, and receive the paging message at the response PDSCH resource based on the scheduling information of the PDCCH paging message; if the PEI obtained by the terminal device does not include the ID corresponding to the PEI group to which it belongs, it can be determined that it and the paged terminal device do not belong to the same PEI group, and there is no need to monitor and demodulate PDCCH in PO in the future, nor is there any need to further receive paging messages.

[0101] In some embodiments, the base station may broadcast the configuration information of the PEI group to the terminal device through an RRC message, wherein the configuration information of the PEI group may be, for example, a sequence. The terminal device may calculate the PEI group to which it belongs based on the PEI group configuration information sent by the base station, and may obtain the ID corresponding to the PEI group to which it belongs.

[0102] It should be noted that the reason why the introduction of the PEI scheme can achieve the purpose of saving power consumption of terminal devices is mainly due to the following two aspects: on the one hand, the base station indicates to the terminal device whether there is potential, incoming paging before the PO associated with the terminal device. If there is no paging that the terminal device needs to receive, then after receiving the corresponding PEI indication, the terminal device does not need to wake up at its associated PO to monitor and decode PDCCH, thereby reducing the resource consumption of the terminal device; on the other hand, since the PEI grouping is a further grouping of the terminal device, the search space of PEI is smaller than the search space of PO, and the power consumption of demodulating a PEI is smaller than the power consumption of demodulating a PO, so it can save the power consumption of the terminal device.

[0103] The following describes the process of classifying different terminal devices into different PEI groups in conjunction with the accompanying drawings. Figure 4 As shown, it is a schematic flow chart of a PEI grouping division provided in an embodiment of the present application. The process specifically includes the following steps:

[0104] S401, the terminal device sends the CN group supported by the terminal device to AMF.

[0105] Among them, CN subgroup may refer to the subgroup configured by the core network (such as AMF) for the terminal device.

[0106] In some embodiments, when the terminal device supports CN grouping, or expects to be divided into a certain CN grouping, the terminal device can send the CN grouping it supports to the AMF (UE support of CN controlled subgrouping). Specifically, the terminal device can send the CN grouping it supports to the AMF through a base station (such as a gNB).

[0107] S402, AMF determines the CN group corresponding to the terminal device.

[0108] In some embodiments, the AMF may configure a corresponding CN group for the terminal device based on the CN group supported by the terminal device. The CN group configured by the AMF for the terminal device may be consistent with the CN group supported by the terminal device.

[0109] S403, AMF sends the CN group information corresponding to the terminal device to the base station.

[0110] The CN group information may include, for example, the ID of the CN group configured by the AMF for the terminal device, and / or other data used to calculate the CN group to which the terminal device belongs.

[0111] S404, the base station broadcasts configuration information to the terminal device.

[0112] In some embodiments, the configuration information broadcasted by the base station to the terminal device may include the total number of groups corresponding to the terminal device associated PO and the PEI grouping information corresponding to the terminal device. The PEI grouping information may include data (such as a sequence) for calculating the PEI group to which the terminal device belongs.

[0113] In some embodiments, the configuration information may also include CN group information corresponding to the terminal device, wherein the CN group information may include, for example, a CN group ID corresponding to the terminal device, or data (such as a sequence) used to calculate the CN group corresponding to the terminal device.

[0114] In some embodiments, the base station may broadcast configuration information periodically.

[0115] S405, AMF sends a paging message to the base station.

[0116] In some embodiments, when the network side has signaling that needs to be sent to the terminal device, a paging process can be initiated. Specifically, the network side AMF can send a paging message to the base station, and the paging message may include the UEID of the paged terminal device and the CN group information to which the paged terminal device belongs (such as the CN group ID or other data used to calculate the CN group to which the terminal device belongs).

[0117] S406: The base station and the terminal device determine the paging group corresponding to the terminal device according to the CN group information and the PEI group information corresponding to the terminal device.

[0118] The paging group here may be unique, which may refer to a group uniquely associated with the terminal device when receiving PEI, or may refer to a group actually located when the terminal device is used to receive PEI. The paging group may be a CN group corresponding to the terminal device or a PEI group corresponding to the terminal device.

[0119] It should be noted that the CN group is obtained through negotiation between the terminal device and the core network, but in some cases, the base station may not support the CN group or only support some CN groups. Therefore, the base station needs to configure the group (ie, PEI group) for the terminal device based on the UE ID based on its own capabilities. Afterwards, the base station and the terminal device can determine the paging group corresponding to the terminal device based on the PEI group configured by the base station and the CN group configured by the core network in a preset manner.

[0120] It should also be noted that the paging group corresponding to the terminal device is determined based on the CN group information and the PEI group information so that the base station and the terminal device can align the group information of the terminal device so that the terminal devices in the group can subsequently accurately obtain the corresponding PEI, and then obtain a more accurate indication of whether to monitor the PDCCH.

[0121] In some embodiments, the manner in which the base station and the terminal device determine the paging group corresponding to the terminal device may include: determining the paging group ID according to the total number of groups in the PO associated with the terminal device and the number of PEI groups based on the UE ID in the PO. The total number of groups in the PO associated with the terminal device may refer to the sum of the number of CN groups and the number of PEI groups based on the UE ID in the PO. Specifically, if the base station configures the total number of groups in the PO and the number of PEI groups based on the UE ID for the terminal device at the same time, and the total number of groups in the PO and the number of PEI groups are equal, then the ID of the paging group to which the terminal device belongs is determined based on the PEI group corresponding to the terminal device, wherein the ID of the paging group may be, for example, the PEI group ID corresponding to the terminal device; if the base station configures the total number of groups in the PO and the number of PEI groups based on the UE ID for the terminal device at the same time, and the number of PEI groups is less than the total number of groups in the PO, then the ID of the paging group to which the terminal device belongs is determined based on the CN group corresponding to the terminal device, wherein the ID of the paging group may be, for example, the CN group ID corresponding to the terminal device.

[0122] In some embodiments, the total number of groups in PO may be 8 groups, which may be numbered 0 to 7. The relationship between the total number of groups in PO and the number of CN groups and the number of PEI groups may be: total number of groups in PO - number of PEI groups = number of CN groups.

[0123] It should be noted that in the embodiment of the present application, the PEI group corresponds to the group configured by the base station for the terminal device based on the UE ID, and the CN group corresponds to the group configured by the core network (such as AMF) and the terminal device through negotiation. When the core network initiates paging, the AMF can send the CN group corresponding to the terminal device to the base station, and the base station determines the actual paging group corresponding to the terminal device based on the above method according to the CN group corresponding to the terminal device and the PEI configuration; similarly, the terminal device can also obtain its corresponding actual paging group in a similar manner.

[0124] It should also be noted that the embodiment of the present application does not limit the execution order of step S405 and step S406. The operation in S406 can be executed before S405, or after S405, or simultaneously with S405.

[0125] S407, the base station sends the corresponding PEI based on the paging packet corresponding to the terminal device.

[0126] In some embodiments, after the base station obtains the paging message sent by the AMF, it can broadcast the PEI in response to the paging message, and the PEI can carry the paging group ID corresponding to the paged terminal device.

[0127] In some embodiments, after the terminal device obtains PEI, it can determine whether it needs to monitor and decode PDCCH at PO based on the paging group ID carried therein. If the paging group ID carried by PEI is consistent with the paging group ID corresponding to the terminal device, the terminal device needs to monitor and decode PDCCH at PO; if the paging group ID is not carried by PEI, or the paging group ID carried by PEI is inconsistent with the paging group ID corresponding to the terminal device, the terminal device does not need to monitor and decode PDCCH at PO and can return to sleep state.

[0128] From the above process, it can be seen that in the PEI support paging grouping solution proposed by R17, the terminal device needs to monitor and decode PEI to determine whether it needs to monitor PDCCH in PO. However, since PEI is a type of DCI, decoding it also consumes more terminal device resources, resulting in increased power consumption of the terminal device.

[0129] In view of this, an embodiment of the present application provides a paging method by introducing a simpler WUS based on the PEI indication, and using the WUS to indicate whether the terminal device needs to monitor PO, so that some terminal devices, especially terminal devices that are not frequently paged, do not need to decode PEI, and only need to determine whether to monitor and decode PDCCH based on WUS, thereby saving resource consumption of the terminal device.

[0130] The paging method provided in the embodiment of the present application can be applied to any scenario of the core network paging terminal device. The terminal device in the embodiment of the present application can be various types of electronic devices, such as mobile phones, tablet computers, wearable devices, vehicle-mounted devices, augmented reality (AR) / virtual reality (VR) devices, laptop computers, ultra-mobile personal computers (UMPC), netbooks, personal digital assistants (PDA), etc. Exemplary embodiments of electronic devices include but are not limited to devices equipped with Or a portable terminal device with other operating systems. The above terminal device may also be a desktop computer with a touch-sensitive surface (such as a touch panel). The embodiment of the present application does not limit the specific type of the terminal device.

[0131] For example, Figure 5 As shown, it is a schematic structural diagram of a terminal device 100 provided in an embodiment of the present application.

[0132] The terminal device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and a subscriber identification module (SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, etc.

[0133] It is to be understood that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the terminal device 100. In other embodiments of the present application, the terminal device 100 may include more or fewer components than shown in the figure, or combine some components, or split some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0134] The processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (AP), a modem processor, a graphics processor (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0135] The controller may be the nerve center and command center of the terminal device 100. The controller may generate an operation control signal according to the instruction operation code and the timing signal to complete the control of fetching and executing instructions.

[0136] The processor 110 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may store instructions or data that the processor 110 has just used or cyclically used. If the processor 110 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 110, and thus improves the efficiency of the system.

[0137] In some embodiments, the processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity module (SIM) interface, and / or a universal serial bus (USB) interface, etc.

[0138] The I2C interface is a bidirectional synchronous serial bus, including a serial data line (SDA) and a serial clock line (SCL). In some embodiments, the processor 110 may include multiple groups of I2C buses. The processor 110 may be coupled to the touch sensor 180K, the charger, the flash, the camera 193, etc. through different I2C bus interfaces. For example: the processor 110 may be coupled to the touch sensor 180K through the I2C interface, so that the processor 110 communicates with the touch sensor 180K through the I2C bus interface, thereby realizing the touch function of the terminal device 100.

[0139] The I2S interface can be used for audio communication. In some embodiments, the processor 110 can include multiple I2S buses. The processor 110 can be coupled to the audio module 170 via the I2S bus to achieve communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 can transmit an audio signal to the wireless communication module 160 via the I2S interface to achieve the function of answering a call through a Bluetooth headset.

[0140] The PCM interface can also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 can be coupled via a PCM bus interface. In some embodiments, the audio module 170 can also transmit audio signals to the wireless communication module 160 via the PCM interface to realize the function of answering calls via a Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.

[0141] The UART interface is a universal serial data bus for asynchronous communication. The bus can be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, the UART interface is generally used to connect the processor 110 and the wireless communication module 160. For example, the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to implement the Bluetooth function. In some embodiments, the audio module 170 can transmit an audio signal to the wireless communication module 160 through the UART interface to implement the function of playing music through a Bluetooth headset.

[0142] The MIPI interface can be used to connect the processor 110 with peripheral devices such as the display screen 194 and the camera 193. The MIPI interface includes a camera serial interface (CSI), a display serial interface (DSI), etc. In some embodiments, the processor 110 and the camera 193 communicate via the CSI interface to implement the shooting function of the terminal device 100. The processor 110 and the display screen 194 communicate via the DSI interface to implement the display function of the terminal device 100.

[0143] The GPIO interface can be configured by software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface can be used to connect the processor 110 with the camera 193, the display 194, the wireless communication module 160, the audio module 170, the sensor module 180, etc. The GPIO interface can also be configured as an I2C interface, an I2S interface, a UART interface, a MIPI interface, etc.

[0144] The USB interface 130 is an interface that complies with the USB standard specification, and specifically can be a Mini USB interface, a Micro USB interface, a USB Type C interface, etc. The USB interface 130 can be used to connect a charger to charge the terminal device 100, and can also be used to transmit data between the terminal device 100 and peripheral devices. It can also be used to connect headphones to play audio through the headphones. The interface can also be used to connect other terminal devices, such as AR devices, etc.

[0145] It is understandable that the interface connection relationship between the modules illustrated in the embodiment of the present invention is only a schematic illustration and does not constitute a structural limitation on the terminal device 100. In other embodiments of the present application, the terminal device 100 may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.

[0146] The charging management module 140 is used to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger through the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive wireless charging input through a wireless charging coil of the terminal device 100. While the charging management module 140 is charging the battery 142, it may also power the terminal device through the power management module 141.

[0147] The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and / or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the external memory, the display screen 194, the camera 193, and the wireless communication module 160. The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle number, battery health status (leakage, impedance), etc. In some other embodiments, the power management module 141 can also be set in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 can also be set in the same device.

[0148] The wireless communication function of the terminal device 100 can be implemented through the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor and the baseband processor.

[0149] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in terminal device 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve the utilization of antennas. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In some other embodiments, the antenna can be used in combination with a tuning switch.

[0150] The mobile communication module 150 can provide solutions for wireless communications including 2G / 3G / 4G / 5G applied to the terminal device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, and filter, amplify, and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the same device as at least some of the modules of the processor 110.

[0151] The modem processor may include a modulator and a demodulator. Among them, the modulator is used to modulate the low-frequency baseband signal to be sent into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After the low-frequency baseband signal is processed by the baseband processor, it is passed to the application processor. The application processor outputs a sound signal through an audio device (not limited to a speaker 170A, a receiver 170B, etc.), or displays an image or video through a display screen 194. In some embodiments, the modem processor may be an independent device. In other embodiments, the modem processor may be independent of the processor 110 and be set in the same device as the mobile communication module 150 or other functional modules.

[0152] The wireless communication module 160 can provide wireless communication solutions including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR), etc., which are applied to the terminal device 100. The wireless communication module 160 can be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the frequency of the electromagnetic wave signal and performs filtering, and sends the processed signal to the processor 110. The wireless communication module 160 can also receive the signal to be sent from the processor 110, modulate the frequency of it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2.

[0153] In some embodiments, the antenna 1 of the terminal device 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the terminal device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and / or IR technology. The GNSS may include a global positioning system (GPS), a global navigation satellite system (GLONASS), a Beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS) and / or a satellite based augmentation system (SBAS).

[0154] The terminal device 100 implements the display function through the GPU, the display screen 194, and the application processor, etc. The display screen 194 is used to display images, videos, etc.

[0155] The terminal device 100 can realize the shooting function through ISP, camera 193, video codec, GPU, display screen 194 and application processor.

[0156] The digital signal processor is used to process digital signals. In addition to processing digital image signals, it can also process other digital signals. For example, when the terminal device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the frequency point energy. The video codec is used to compress or decompress digital video. The NPU is a neural network (NN) computing processor that quickly processes input information by drawing on the structure of biological neural networks, such as the transmission mode between neurons in the human brain, and can also continuously self-learn.

[0157] The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the terminal device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music and videos are stored in the external memory card. The internal memory 121 can be used to store computer executable program codes, which include instructions.

[0158] The terminal device 100 can implement audio functions such as music playing and recording through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the headphone jack 170D, and the application processor.

[0159] The pressure sensor 180A is used to sense the pressure signal and can convert the pressure signal into an electrical signal. The gyroscope sensor 180B can be used to determine the motion posture of the terminal device 100. The magnetic sensor 180D includes a Hall sensor. The terminal device 100 can use the magnetic sensor 180D to detect the opening and closing of the flip leather case. The acceleration sensor 180E can detect the magnitude of the acceleration of the terminal device 100 in various directions (generally three axes). When the terminal device 100 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of the terminal device, and is applied to horizontal and vertical screen switching, pedometers and other applications. The proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The terminal device 100 emits infrared light outward through the light emitting diode. The ambient light sensor 180L is used to sense the brightness of the ambient light. The terminal device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The fingerprint sensor 180H is used to collect fingerprints. The temperature sensor 180J is used to detect the temperature. The touch sensor 180K is also called a "touch panel". The touch sensor 180K can be set on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, also called a "touch screen". The touch sensor 180K is used to detect touch operations acting on or near it. The bone conduction sensor 180M can obtain vibration signals.

[0160] In addition, the terminal device 100 further includes an air pressure sensor 180C and a distance sensor 180F. The air pressure sensor 180C is used to measure air pressure. In some embodiments, the terminal device 100 calculates the altitude through the air pressure value measured by the air pressure sensor 180C to assist positioning and navigation.

[0161] The distance sensor 180F is used to measure the distance. The terminal device 100 can measure the distance by infrared or laser. In some embodiments, when shooting a scene, the terminal device 100 can use the distance sensor 180F to measure the distance to achieve fast focusing.

[0162] Exemplarily, the software system of the terminal device 100 may adopt a layered architecture, an event-driven architecture, a micro-core architecture, a micro-service architecture, or a cloud architecture. The present application embodiment takes the Android system of the layered architecture as an example to exemplify the software structure of the terminal device 100. Figure 6 It is a software structure block diagram of the terminal device 100 according to an embodiment of the present application.

[0163] The layered architecture divides the software into several layers, each with clear roles and division of labor. The layers communicate with each other through software interfaces. In some embodiments, the Android system is divided into four layers, from top to bottom: application layer, application framework layer, Android runtime, system library, kernel layer, hardware abstraction layer (HAL), and hardware layer.

[0164] The application layer can include a series of application packages. Figure 6 As shown, the application package may include applications such as camera, calendar, map, WLAN, music, short message, gallery, call, navigation, Bluetooth, video, etc.

[0165] The application framework layer provides an application programming interface (API) and programming framework for the applications in the application layer. The application framework layer includes some predefined functions. Figure 6 As shown, the application framework layer may include a window manager, a content provider, a phone manager, a resource manager, a notification manager, a view system, and the like.

[0166] The window manager is used to manage window programs. The window manager can obtain the display screen size, determine whether there is a status bar, lock the screen, capture the screen, etc.

[0167] Content providers are used to store and retrieve data and make it accessible to applications. The data may include videos, images, audio, calls made and received, browsing history and bookmarks, phone books, etc.

[0168] The view system includes visual controls, such as controls for displaying text, controls for displaying images, etc. The view system can be used to build applications. A display interface can be composed of one or more views. For example, a display interface including a text notification icon can include a view for displaying text and a view for displaying images.

[0169] The phone manager is used to provide communication functions of the terminal device 100, such as management of call status (including connection, disconnection, etc.).

[0170] The resource manager provides various resources for applications, such as localized strings, icons, images, layout files, video files, and so on.

[0171] The notification manager enables applications to display notification information in the status bar. It can be used to convey notification-type messages and can disappear automatically after a short stay without user interaction. For example, the notification manager is used to notify download completion, message reminders, etc. The notification manager can also be a notification that appears in the system top status bar in the form of a chart or scroll bar text, such as notifications of applications running in the background, or a notification that appears on the screen in the form of a dialog window. For example, a text message is displayed in the status bar, a prompt sound is emitted, the terminal device vibrates, the indicator light flashes, etc.

[0172] Android Runtime includes core libraries and virtual machines. Android runtime is responsible for scheduling and management of the Android system.

[0173] The core library consists of two parts: one part is the function that needs to be called by the Java language, and the other part is the Android core library.

[0174] The application layer and the application framework layer run in the virtual machine. The virtual machine executes the java files of the application layer and the application framework layer as binary files. The virtual machine is used to perform functions such as obstacle life cycle management, stack management, thread management, security and exception management, and garbage collection.

[0175] The system library may include multiple functional modules, such as surface manager, media library, 3D graphics processing library (such as OpenGL ES), 2D graphics engine (such as SGL), etc.

[0176] The surface manager is used to manage the display subsystem and provide the fusion of 2D and 3D layers for multiple applications.

[0177] The media library supports playback and recording of a variety of commonly used audio and video formats, as well as static image files, etc. The media library can support a variety of audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.

[0178] The 3D graphics processing library is used to implement 3D graphics drawing, image rendering, compositing, and layer processing.

[0179] A 2D graphics engine is a drawing engine for 2D drawings.

[0180] The kernel layer is the layer between hardware and software. The kernel layer contains at least display driver, camera sensor driver, audio driver, and sensor driver.

[0181] In order to better understand the paging method provided in the embodiment of the present application, the specific implementation process of the method is introduced below in conjunction with the accompanying drawings.

[0182] For example, Figure 7 FIG. 1 is a schematic flow chart of a paging method provided in an embodiment of the present application. The process may specifically include the following steps:

[0183] S701, the terminal device sends the WUS capability and / or expected WUS packet supported by the terminal device to the AMF.

[0184] In some embodiments, the terminal device may send the terminal device's ability to support WUS and / or desired WUS packets to the AMF on the network side via non-access stratum (NAS) signaling.

[0185] In some embodiments, the process of a terminal device sending the terminal device's ability to support WUS and / or expected WUS packets to the AMF may include: the terminal device sending the terminal device's ability to support WUS and / or expected WUS packets to the base station, and the base station forwarding the terminal device's ability to support WUS and / or expected WUS packets to the core network via transparent transmission.

[0186] The terminal device may determine the desired WUS grouping according to the historical experience of being paged. For example, if the probability of the terminal device obtaining that it is paged in a preset historical period is lower than a specific threshold, the terminal device may obtain its desired WUS grouping as a group with a lower probability of being paged; if the probability of the terminal device obtaining that it is paged in a preset historical period is equal to or higher than a characteristic threshold, the terminal device may obtain its desired WUS grouping as a group with a higher probability of being paged.

[0187] Optionally, in some embodiments, the terminal device may also send the probability of being paged within a preset historical period to the core network, so that the core network may determine the WUS group corresponding to the terminal device based on the probability.

[0188] In some embodiments, the terminal device may also send a CN grouping (UE support of CN controlled subgrouping) supported by the terminal device to the AMF, or send an expected CN grouping to the AMF. Specifically, the terminal device may transparently transmit the CN grouping it supports or the expected CN grouping to the AMF via a base station (such as a gNB).

[0189] S702, AMF determines the WUS group corresponding to the terminal device.

[0190] In some embodiments, the AMF may determine the WUS group corresponding to the terminal device in a variety of ways, including, for example: (1) the AMF may determine the WUS group corresponding to the terminal device according to the probability of the terminal device being paged. For example, when the WUS corresponds to only one group (that is, only one WUS group, or only one WUS state), the AMF may classify the terminal devices whose paging probability is lower than the characteristic threshold into the WUS group, and not classify the terminal devices whose paging probability is equal to or higher than a specific threshold into the WUS group; for another example, when the WUS corresponds to multiple groups (that is, there are multiple WUS groups, or there are multiple WUS states), the AMF may classify the terminal devices whose paging probability is close to each other into the same WUS group, for example, classify the terminal devices whose paging probability is equal to or greater than 0 and less than M into WUS group 1, classify the terminal devices whose paging probability is equal to or greater than M and less than N into WUS group 2, and so on. Wherein, M and N are values ​​greater than or equal to 0 and less than or equal to 1, respectively, and M is less than N. (2) AMF may determine the WUS group corresponding to the terminal device based on the WUS group expected by the terminal device, wherein the WUS group corresponding to the terminal device determined by AMF may be consistent with the WUS group expected by the terminal device.

[0191] With respect to the above-mentioned method (1) of determining the WUS group corresponding to the terminal device, when there are multiple WUS states, an exemplary grouping logic may be as shown in the following Table 1:

[0192] Table 1

[0193] The probability of the terminal device being paged WUS status corresponding to the terminal device Equal to or greater than 0 and less than M WUS Group 1 Equal to or greater than M and less than N WUS Group 2 …… …… Equal to or greater than P, and less than 1 WUS group n (n is an integer greater than 2)

[0194] With respect to the above-mentioned method (1) of determining the WUS group corresponding to the terminal device, when there is only one WUS state, an exemplary grouping logic may be as shown in the following Table 2:

[0195] Table 2

[0196] The probability of the terminal device being paged WUS status corresponding to the terminal device Equal to or greater than 0 and less than Q (Q is a value greater than 0 and less than 1) WUS Group 1 Equal to or greater than Q, and less than 1 NULL

[0197] It should be noted that Table 1 and Table 2 only introduce the WUS status as a group identifier (that is, the WUS group ID is 1, 2...n) as an example. In actual applications, different WUS statuses can also be represented by other types of data, and the embodiments of the present application are not limited to this.

[0198] In addition, when there is only one WUS state (such as the WUS state shown in Table 2 is only WUS group 1), the core network can divide the terminal devices into two types. Among them, terminal devices with a low probability of being paged (such as terminal devices with a probability of being paged equal to or greater than 1 and less than Q) can be divided into WUS group 1, that is, the WUS state corresponding to this type of terminal devices is WUS group 1; terminal devices with a high probability of being paged (such as terminal devices with a probability of being paged equal to or greater than Q and less than 1) can be divided into no corresponding WUS group, that is, the WUS state corresponding to this type of terminal devices can be NULL.

[0199] It should also be noted that Tables 1 and 2 only use the example of AMF performing WUS division on terminal devices according to the probability of the terminal devices being paged. In actual applications, AMF can also perform WUS division on terminal devices according to other types of data, such as grouping according to the WUS grouping to which the terminal devices expect to be divided. The embodiments of the present application are not limited to this.

[0200] S703, AMF sends the WUS grouping information corresponding to the terminal device to the terminal device through the base station.

[0201] In some embodiments, the AMF may send the WUS group information corresponding to the terminal device to the base station, wherein the WUS group information may include, for example, the UE ID corresponding to the terminal device and the corresponding WUS status (or WUS group); after receiving the WUS group information, the base station may transmit it to the terminal device.

[0202] S704, the base station broadcasts configuration information to the terminal device.

[0203] In some embodiments, the base station may broadcast configuration information periodically.

[0204] In some embodiments, the configuration information may include, for example, the total number of groups supported by PO, the PEI grouping information corresponding to the terminal device, and the WUS status information corresponding to the terminal device. Among them, the PEI grouping information corresponding to the terminal device may be, for example, the PEI grouping ID corresponding to the UE ID of the terminal device, or the data (such as a sequence) corresponding to the UE ID of the terminal device for calculating the PEI grouping to which the terminal device belongs. The WUS status information corresponding to the terminal device may be, for example, the WUS grouping ID corresponding to the UE ID of the terminal device, or the data (such as a sequence) corresponding to the UE ID of the terminal device for calculating the WUS grouping to which the terminal device belongs.

[0205] In some embodiments, the configuration information may also include the number of groups supported by the WUS and other related configurations (such as the time-frequency position of the WUS transmission, etc.).

[0206] In some embodiments, the configuration information may also include CN group information corresponding to the terminal device, such as a CN group ID corresponding to the terminal device, or data used to calculate the CN group to which the terminal device belongs.

[0207] Optionally, in some embodiments, the configuration information may further include a correspondence between PEI groups and WUS groups, wherein the correspondence between PEI groups and WUS groups may include, for example, a correspondence between PEI group IDs and WUS group IDs (as shown in Tables 3 and 4 below).

[0208] For example, as shown in Table 3 and Table 4 below, they are examples of mapping relationships between some WUS group numbers and PEI group numbers provided in embodiments of the present application:

[0209] Table 3

[0210] PEI Group ID WUS Group ID Paging monitoring mode 0 0 Monitor WUS first, then monitor PEI 1 0 Monitor WUS first, then monitor PEI 2 0 Monitor WUS first, then monitor PEI 3 0 Monitor WUS first, then monitor PEI 4 1 Direct monitoring of PEI or PO 5 1 Direct monitoring of PEI or PO 6 1 Direct monitoring of PEI or PO 7 1 Direct monitoring of PEI or PO

[0211] Table 4

[0212]

[0213]

[0214] It should be noted that Table 3 above shows an exemplary mapping relationship between PEI grouping and WUS state when WUS grouping ID (or WUS state) has multiple states (such as 0 and 1). Table 4 above shows an exemplary mapping relationship between PEI grouping and WUS state when WUS grouping (or WUS state) has only one state (such as only 0).

[0215] In conjunction with Table 3, when there are multiple WUS states, different PEI groups may correspond to different WUS states, and different WUS states may correspond to different paging monitoring methods. Exemplarily, taking the mapping relationship shown in Table 3 as an example, when the WUS states are 0 and 1 respectively, the PEI groups may be divided into two types, wherein one PEI group (such as PEI groups 0 to 3 shown in Table 1 above) corresponds to a WUS state of 0, and its corresponding paging monitoring method may be to monitor WUS first and then PEI; another PEI group (such as PEI groups 4 to 7 shown in Table 3 above) corresponds to a WUS state of 1, and its corresponding paging monitoring method may be to directly monitor PEI or directly monitor PO.

[0216] Combined with Table 4, when there is only one WUS state, the PEI grouping can also be divided into two types, where the WUS state corresponding to one PEI grouping (such as PEI groups 0 to 3) can be 0, that is, this type of PEI grouping corresponds to WUS, and its corresponding paging monitoring method can be to monitor WUS first and then monitor PEI; the WUS state corresponding to another PEI grouping (such as PEI groups 4 to 7 shown in Table 4 above) can be NULL, that is, this type of PEI grouping has no corresponding WUS, and its corresponding paging monitoring method can directly monitor PEI or directly monitor PO.

[0217] Among them, when the paging monitoring mode corresponding to the terminal device is to directly monitor PEI or directly monitor PO, it does not need to monitor WUS, but can directly monitor PEI according to the solution in R17 or monitor PO according to the solution in R15.

[0218] It should be noted that, for ease of understanding, the mapping relationship between the WUS group and the PEI group is introduced in Table 3 and Table 4 as the corresponding relationship between the PEI group ID and the WUS group ID, but in actual applications, the mapping relationship between the WUS group and the PEI group can also be in other ways. For example, the mapping relationship can also be a corresponding relationship between the data (such as a sequence) used to calculate the PEI group and the data (such as a sequence) used to calculate the WUS group, etc., and the embodiment of the present application is not limited to this.

[0219] It should also be noted that WUS can be a sequence-related signal, such as an energy (or power)-related sequence signal, which does not require the terminal device to perform complex decoding operations, but only requires the low-power WUR to obtain the information indicated. Therefore, by indicating to the terminal device whether it needs to monitor and decode the scheduling information of the PDCCH paging message through WUS, the power consumption of the terminal device can be effectively saved.

[0220] In some embodiments, the method for determining the mapping relationship between the PEI group and the WUS group can be flexibly set according to demand. For example, in one possible implementation, the base station can divide the terminal devices that are less frequently paged into the same or multiple PEI groups based on the probability or number of times each terminal device is paged, and then associate the PEI group with the same WUS state, and the paging monitoring method corresponding to the associated WUS state may be to need to monitor the WUS first. In this way, the terminal devices that are less frequently paged can obtain scheduling information based on a simple WUS on whether it is necessary to monitor and decode the more complex PDCCH paging message. When there is no need to monitor the scheduling information of the PDCCH paging message (such as none of the associated terminal devices are paged), the terminal device can remain in a dormant state without consuming power and other resources for additional monitoring and decoding operations.

[0221] S705, AMF sends a paging message to the base station.

[0222] In some embodiments, when the network side needs to send signaling or system information to the terminal device and the terminal device is in a non-connected state, the network side (such as AMF) can initiate a paging action. Specifically, the AMF can send a paging message to the base station, and the paging message may include the UE ID of the paged terminal device, the CN group corresponding to the paged terminal device (such as the CN group ID corresponding to the paged terminal device) and the WUS group corresponding to the paged terminal device (such as the WUS group ID corresponding to the paged terminal device).

[0223] In some embodiments, the AMF may, for example, send a paging message to the base station via radio access network paging (RAN paging) signaling, or the AMF may, for example, send a paging message to the base station via inactive assistance information.

[0224] In some embodiments, after receiving the paging message sent by the network side, the base station may store the CN group corresponding to the terminal device and the WUS group corresponding to the terminal device in the local space.

[0225] S706, the base station and the terminal device determine the paging group corresponding to the terminal device and the monitored WUS or PEI corresponding to the paging self-group according to the PEI group information and WUS group information corresponding to the terminal device.

[0226] The paging group here may be unique, which may refer to a group that is uniquely associated with the terminal device when receiving the PEI, or may refer to a group that the terminal device actually is in when receiving the PEI. Figure 4Different from the paging group introduced in the embodiment, the paging group in the embodiment of the present application can be a PEI group corresponding to the terminal device or a WUS group corresponding to the terminal device.

[0227] In some embodiments, the base station and the terminal device can determine the paging group corresponding to the terminal device according to the total number of groups PEI supported by the PO corresponding to the terminal device.

[0228] It should be noted that the CN group is obtained through negotiation between the terminal device and the core network, but in some cases, the base station may not support the CN group or only support some CN groups. Therefore, the base station needs to configure the group (ie, PEI group) for the terminal device based on the UE ID based on its own capabilities. Afterwards, the base station and the terminal device can determine the paging group corresponding to the terminal device based on the PEI group configured by the base station and the CN group configured by the core network in a preset manner.

[0229] It should also be noted that the paging group corresponding to the terminal device is determined based on the CN group information and the PEI group information so that the base station and the terminal device can align the group information of the terminal device so that the terminal devices in the group can subsequently accurately obtain the corresponding PEI, and then obtain a more accurate indication of whether to monitor the PDCCH.

[0230] In some embodiments, the manner in which the base station and the terminal device determine the paging group corresponding to the terminal device may include: determining the paging group ID according to the total number of groups in the PO associated with the terminal device and the number of PEI groups based on the UE ID in the PO. The relationship between the total number of groups in the PO and the number of CN groups and the number of PEI groups may be: the total number of groups in the PO-the number of PEI groups=the number of CN groups. Specifically, if the total number of groups in the PO and the number of PEI groups are equal, then the ID of the paging group in which the terminal device is located is determined based on the PEI group corresponding to the terminal device, wherein the ID of the paging group may be, for example, the PEI group ID corresponding to the terminal device, that is, the paging group is represented by the CN group in which the terminal device is located. If the number of PEI groups configured by the base station is less than the total number of groups in the PO, then the ID of the paging group in which the terminal device is located is determined based on the CN group corresponding to the terminal device, wherein the ID of the paging group may be, for example, the CN group ID corresponding to the terminal device, that is, the paging group is represented by the CN group in which the terminal device is located.

[0231] Optionally, if the PEI group refresh number configured by the base station is less than the total number of groups in the PO, then the ID of the paging group to which the terminal device belongs can also be determined based on the WUS group corresponding to the terminal device, wherein the ID of the paging group can, for example, be the ID of the WUS group corresponding to the terminal device, that is, the paging group is represented by the WUS group to which the terminal device belongs.

[0232] In some embodiments, the number of CN groups may be multiple groups, and each CN group has a different number (i.e., CN group ID). For example, the number of CN groups may be 8 groups, and their numbers may be 0-7. The number of WUS groups may be one or more groups, and their numbers are different from the numbers of the CN groups. For example, the number of each WUS group may be an integer greater than or equal to 8.

[0233] In some embodiments, the base station can determine the paging monitoring mode corresponding to the paged terminal device based on the WUS groups (or WUS states) it supports and the WUS group ID corresponding to the paged terminal device. Specifically, the process of the base station determining the paging monitoring mode corresponding to the paged terminal device may include: the base station can obtain the WUS group corresponding to the paged terminal device according to the paging message sent by the AMF. Among them, if the base station supports the WUS group corresponding to the paged terminal device, that is, the number of WUS groups (or WUS states) supported by the base station is greater than or equal to the number of WUS groups in which the paged terminal device is located, then the base station can determine that the paging monitoring mode corresponding to the paged terminal device is to monitor WUS, and after monitoring WUS, directly monitor the PDCCH of PO (without monitoring PEI). At this time, the base station can send WUS to page the terminal device according to the paging group to which the paged terminal device belongs. If the base station is not configured with WUS, or the base station is configured with WUS but does not support the WUS group corresponding to the paged terminal device, that is, the number of WUS groups or WUS states supported by the base station is less than the number of WUS groups to which the paged terminal device belongs (such as the paged terminal device belongs to the second WUS group (WUS group ID is, for example, 9), but the base station only supports one WUS group or one WUS state), then the base station can determine that the paging monitoring mode of the paged terminal device is to monitor PEI, and monitor the PDCCH of PO according to the indication of PEI. At this time, the base station can send PEI to page the terminal device according to the paging group to which the paged terminal device belongs.

[0234] In some embodiments, the terminal device may also determine the paging monitoring mode according to the WUS group to which it belongs and the received configuration information. Specifically, the process of the terminal device determining the corresponding paging monitoring mode may include: the terminal device may obtain the number of WUS groups (or WUS states) supported by the base station according to the received configuration information. When the number of groups supported by the base station WUS obtained by the terminal device according to the configuration information is greater than or equal to the WUS group to which it belongs, that is, the base station supports the WUS group corresponding to the paged terminal device, the terminal device can determine that its corresponding paging monitoring mode is to monitor WUS, and after monitoring WUS, directly monitor the PDCCH of PO. When the number of groups supported by the base station WUS obtained by the terminal device according to the configuration information is less than the WUS group to which it belongs, that is, the base station does not support the WUS group corresponding to the paged terminal device, the terminal device can determine that its corresponding paging monitoring mode is to monitor PEI, and monitor the PDCCH of PO according to the indication of PEI (without monitoring WUS).

[0235] Among them, the situation where the base station is configured with WUS but does not support the WUS group corresponding to the terminal device may include, for example: if the base station is configured with m WUS groups, but the corresponding WUS group after the terminal device negotiates with the core network is the (m+1)th (or other groups greater than m), then the base station cannot send WUS for the WUS group where the terminal device is located, that is, at this time, the base station does not support the group corresponding to the CN WUS group ID of the terminal device. For example, the base station is only configured with 1 WUS group (or WUS state), but the network side (such as AMF) assigns the terminal device to the group with WUS group ID 9 (if the WUS group number configured on the network side starts from 8), that is, the terminal device belongs to the second WUS group. Since the 1 WUS group (or WUS state) configured by the base station usually corresponds to the first WUS group, the base station cannot use WUS to indicate the terminal device in the group after the first WUS group. At this time, the base station does not support the WUS group corresponding to the terminal device.

[0236] It is worth noting that in an embodiment of the present application, the base station configures a paging monitoring mode for the terminal device according to its own performance. Among them, if the base station supports WUS, and the WUS state configured by it supports the WUS group where the paged terminal device is located, then the base station can subsequently send WUS paging terminal equipment, and the terminal device can directly monitor the PDCCH of PO after detecting WUS. If the base station does not support WUS, or the base station supports WUS, but the WUS state configured by it does not support the WUS group where the paged terminal device is located, then the base station can subsequently send PEI paging terminal, and after the terminal device detects PEI, it can monitor the PDCCH of PO according to the indication of PEI. For example, when it is detected that the bit corresponding to PEI is 1, the PDCCH of PO is directly monitored.

[0237] Exemplarily, the WUS sent by the base station paging terminal device may carry the paging group ID corresponding to the paged terminal device, and the terminal device may determine whether to directly monitor the PDCCH of PO (that is, determine whether the WUS is sent to itself, and if so, directly monitor the PDCCH of PO) based on whether the received paging group ID is consistent with the ID of the WUS paging group to which it belongs. Similarly, the PEI sent by the base station paging terminal device may also carry the paging group ID corresponding to the paged terminal device, and the terminal device may determine whether to directly monitor the PDCCH of PO (that is, determine whether the PEI is sent to itself, and if so, monitor the PDCCH of PO) based on whether the received paging group ID is consistent with the ID of the paging group to which it belongs.

[0238] In some embodiments, when the base station does not support the WUS group corresponding to the paged terminal device (such as not configuring WUS, or not configuring the WUS state corresponding to the WUS group), the base station can also instruct the terminal device to fall back to a back group and monitor PEI according to the fallback group. The fallback group can be, for example, a PEI group corresponding to the terminal device, that is, the base station can instruct the terminal device to monitor PEI according to its corresponding paging group ID.

[0239] S707, the base station sends the corresponding WUS before PO according to the paging group corresponding to the terminal device.

[0240] In some embodiments, the base station may send a WUS according to the paging monitoring mode corresponding to the paged terminal device; or send a PEI before a PO according to the paging monitoring mode corresponding to the paged terminal device. The WUS and PEI sent by the base station may carry the paging group ID corresponding to the paged terminal device, or the WUS and PEI sent by the base station may carry the UE ID corresponding to the terminal device.

[0241] In some embodiments, after the base station obtains the paging message, the base station can also serve as an anchor base station to send the UE ID and / or WUS group ID corresponding to the paged terminal device to other base stations, such as sending it to other base stations via RAN paging, so that other base stations can page the terminal device together.

[0242] According to the paging method provided in the embodiment of the present application, by introducing a simpler WUS, PEI and WUS are used to separately indicate whether it is necessary to monitor PO, so that some terminal devices, especially terminal devices that are not frequently paged, only need to determine whether it is necessary to monitor and decode PDCCH based on WUS, thereby saving resource consumption of the terminal devices.

[0243] For example, Figure 8 As shown, it is a schematic diagram of paging monitoring based on WUS or PEI provided in an embodiment of the present application.

[0244] In some embodiments, when the paging monitoring mode corresponding to the terminal device is to first monitor WUS and then directly monitor the PDCCH of PO, the terminal device can monitor WUS before PO. If the terminal device monitors WUS, the terminal device can monitor the scheduling information of the PDCCH paging message at PO according to the corresponding paging monitoring mode. After that, the terminal device can obtain the paging message at the response PDSCH according to the scheduling information.

[0245] In other embodiments, when the paging monitoring mode corresponding to the terminal device is to monitor PO first and then directly monitor the PDCCH of PO, the terminal device may first monitor PEI. If the terminal device monitors PEI, the terminal device may monitor the scheduling information of the PDCCH paging message at PO according to the corresponding paging monitoring mode. Afterwards, the terminal device may obtain the paging message at the response PDSCH according to the scheduling information.

[0246] According to the paging method provided in the embodiment of the present application, by introducing a simpler WUS, PEI and WUS are used to separately indicate whether it is necessary to monitor PO, so that some terminal devices, especially terminal devices that are not frequently paged, only need to determine whether it is necessary to monitor and decode PDCCH based on WUS, thereby saving resource consumption of the terminal devices.

[0247] For example, Fig. 9 As shown, it is a schematic flow chart of another paging method provided in an embodiment of the present application. The execution subject of the process may include a terminal device, and specifically may include the following steps:

[0248] S901, sending first information, where the first information is used to indicate that the terminal device supports WUS capability or WUS grouping information expected by the terminal device.

[0249] S902, receiving first configuration information, where the first configuration information includes a WUS group corresponding to the terminal device.

[0250] S903: Monitor WUS before PO according to the WUS support capability of the base station and the WUS group corresponding to the terminal device.

[0251] It should be noted that, in the embodiment of the present application, step S901 may be an optional step. In a possible implementation, the terminal device may also directly receive the WUS packet sent by the network side (such as AMF), and the terminal device does not need to apply for the WUS packet from the network side, or does not need to indicate to the network side its ability to support WUS or its desired WUS packet.

[0252] In a possible implementation, the WUS support capability of the base station may include, for example, the number of WUS groups supported by the base station, or the number of WUS states supported by the base station. According to the WUS support capability of the base station and the WUS group corresponding to the paged terminal device, both the base station and the terminal device may obtain whether the base station supports the WUS group to which the paged terminal device belongs.

[0253] In one possible implementation, the terminal device monitors WUS before PO based on the WUS support capability of the base station and the WUS group corresponding to the terminal device. Specifically, it may include: the terminal device determines to monitor WUS before PO (that is, determines the paging monitoring method to monitor WUS first and then monitor PO) based on the WUS support capability of the base station and the group corresponding to the terminal device; then, the terminal device may monitor WUS before PO according to the determined paging monitoring method, and after monitoring the corresponding WUS, monitor the scheduling information of the PDCCH paging message of PO.

[0254] After the terminal device obtains its corresponding WUS group, it can obtain whether the base station supports the WUS group corresponding to the terminal device according to the WUS configuration of the base station. If the base station supports the WUS group corresponding to the terminal device, the terminal device can monitor WUS before PO, otherwise it can directly monitor PEI or directly monitor PO.

[0255] In some embodiments, the WUS is monitored before PO based on the WUS support capability of the base station and the WUS group corresponding to the terminal device, specifically including: when the base station supports the WUS group corresponding to the terminal device, the WUS is monitored before PO; when the base station does not support the WUS group corresponding to the terminal device, the paging advance indication PEI is monitored before PO, or the physical downlink control channel PDCCH is directly monitored at PO.

[0256] In some embodiments, when the base station does not support the WUS group corresponding to the terminal device, it monitors the paging advance indication PEI before PO, or directly monitors the physical downlink control channel PDCCH at PO.

[0257] In some embodiments, the method further includes: receiving second configuration information broadcast by the base station, the second configuration information including the WUS support capability of the base station.

[0258] In a possible implementation manner, the configuration information may also include the total number of PO groups and / or PEI grouping information corresponding to the terminal device.

[0259] In some embodiments, the WUS support capability of the base station includes the number of WUS groups supported by the base station; and monitoring WUS before PO based on the WUS support capability of the base station and the WUS group corresponding to the terminal device specifically includes: when the WUS group corresponding to the terminal device supported by the base station is obtained based on the number of WUS groups supported by the base station, monitoring WUS before PO.

[0260] In some embodiments, when the WUS group corresponding to the terminal device supported by the base station is obtained according to the number of WUS groups supported by the base station, WUS is monitored before PO, specifically including: when the number of WUS groups supported by the base station is greater than or equal to the number of WUS groups corresponding to the terminal device, WUS is monitored before PO.

[0261] In a possible implementation, when the number of WUS groups supported by the base station is equal to or greater than the number of WUS groups corresponding to the terminal device, it can be determined that the base station supports the WUS groups corresponding to the terminal device and sends WUS before PO.

[0262] In some embodiments, when the number of WUS packets supported by the base station is less than the number of WUS packets corresponding to the terminal device, it is determined that the base station does not support the WUS packets corresponding to the terminal device; PEI is monitored before PO, or PDCCH is monitored directly in PO.

[0263] In some embodiments, the method further includes: when the WUS is monitored, monitoring a physical downlink control channel PDCCH of the PO.

[0264] In some embodiments, the method also includes: obtaining a paging group corresponding to the terminal device; when the WUS is monitored and the WUS includes the paging group information corresponding to the terminal device, monitoring the scheduling information of the PDCCH paging message at the PO; or, when the PEI is monitored and the PEI includes the paging group information corresponding to the terminal device, monitoring the PDCCH at the PO.

[0265] In some embodiments, the second configuration information may also include the total number of PO groups, the first configuration information also includes the CN groups configured by the core network, and the obtaining of the paging group corresponding to the terminal device specifically includes: obtaining the paging group corresponding to the terminal device according to the total number of PO groups and / or the CN groups configured by the core network for the terminal device.

[0266] In some embodiments, the method further includes: receiving a group fallback indication message, wherein the group fallback indication message is used to instruct the terminal device to monitor the WUS or the PEI when the base station does not support the WUS group corresponding to the terminal device.

[0267] In some embodiments, the method further comprises: listening to the WUS prior to the PO.

[0268] In some embodiments, the method further comprises: monitoring the WUS before each of the POs according to a paging cycle.

[0269] In addition, an embodiment of the present application also provides a paging method, which is applied to a base station, and the method includes: sending second configuration information to a terminal device, the second configuration information including the WUS support capability of the base station; receiving a paging message, the paging message including the WUS group corresponding to the terminal device being paged; and sending the WUS before PO according to the WUS support capability of the base station and the WUS group corresponding to the terminal device.

[0270] In some embodiments, sending the WUS according to the WUS support capability of the base station and the WUS group corresponding to the paged terminal device specifically includes: when the WUS group corresponding to the terminal device supported by the base station is obtained according to the number of WUS groups supported by the base station, sending the WUS before PO.

[0271] In some embodiments, when the WUS group corresponding to the terminal device supported by the base station is obtained according to the number of WUS groups supported by the base station, WUS is sent before PO, specifically including: when the number of WUS groups supported by the base station is equal to or greater than the number of WUS groups corresponding to the terminal device, WUS is sent before PO.

[0272] In some embodiments, the method further includes: when the number of WUS groups supported by the base station is less than the number of WUS groups corresponding to the terminal device, sending PEI before PO, or sending PDCCH directly in PO.

[0273] In some embodiments, the method further includes: receiving first information sent by a terminal device, the first information being used to indicate the terminal device's ability to support WUS or WUS grouping information expected by the terminal device; forwarding to a core network the terminal device's ability to support WUS or WUS grouping information expected by the terminal device; receiving the WUS grouping information configured by the core network to the terminal device; and sending the WUS grouping information to the terminal device.

[0274] In some embodiments, the paging message also includes an identifier of the terminal device being paged, and the method further includes: sending the identifier of the terminal device being paged and WUS grouping information corresponding to the terminal device being paged to other base stations.

[0275] According to the paging method provided in the embodiment of the present application, by introducing a simpler WUS, PEI and WUS are used to separately indicate whether it is necessary to monitor PO, so that some terminal devices, especially terminal devices that are not frequently paged, only need to determine whether it is necessary to monitor and decode PDCCH based on WUS, thereby saving resource consumption of the terminal devices.

[0276] Based on the same technical concept, an embodiment of the present application also provides a terminal device, including one or more processors; one or more memories; the one or more memories store one or more computer programs, and the one or more computer programs include instructions. When the instructions are executed by the one or more processors, the computer or processor executes one or more steps in any of the above methods.

[0277] Based on the same technical concept, an embodiment of the present application also provides a base station, including one or more processors; one or more memories; the one or more memories store one or more computer programs, and the one or more computer programs include instructions. When the instructions are executed by the one or more processors, the computer or processor executes one or more steps in any of the above methods.

[0278] Based on the same technical concept, an embodiment of the present application also provides a communication system, which includes a terminal device and a base station, and the terminal device and the base station are respectively used to execute one or more steps in any of the above methods.

[0279] Based on the same technical concept, an embodiment of the present application also provides a computer-readable storage medium, which stores computer-executable program instructions. When the computer-executable program instructions are executed on a computer, the computer or processor executes one or more steps in any of the above methods.

[0280] Based on the same technical concept, an embodiment of the present application also provides a computer program product comprising instructions, wherein the computer program product includes computer program code. When the computer program code runs on a computer, the computer or processor executes one or more steps in any of the above methods.

[0281] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions may be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.

[0282] Those skilled in the art can understand that to implement all or part of the processes in the above-mentioned embodiments, the processes can be completed by computer programs to instruct related hardware, and the programs can be stored in computer-readable storage media. When the programs are executed, they can include the processes of the above-mentioned method embodiments. The aforementioned storage media include: ROM or random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

[0283] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any changes or replacements within the technical scope disclosed in the embodiment of the present application should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.

Claims

1. A paging method, characterized in that: Applied to a terminal device, the method comprises: Sending first information, where the first information is used to indicate the ability of the terminal device to support the wake-up signal WUS or the WUS packet expected by the terminal device; Receive first configuration information, where the first configuration information includes a WUS group corresponding to the terminal device; According to the WUS support capability of the base station and the WUS group corresponding to the terminal device, the WUS is monitored before the paging occasion PO.

2. The method according to claim 1, characterized in that The monitoring of the WUS before the paging opportunity PO according to the WUS support capability of the base station and the WUS group corresponding to the terminal device specifically includes: When the base station supports the WUS group corresponding to the terminal device, monitoring the WUS before PO; When the base station does not support the WUS group corresponding to the terminal device, it monitors the paging advance indication PEI before PO, or directly monitors the physical downlink control channel PDCCH at PO.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: Second configuration information broadcast by the base station is received, where the second configuration information includes a WUS support capability of the base station.

4. The method according to any one of claims 1 to 3, characterized in that The WUS support capability of the base station includes the number of WUS groups supported by the base station; The monitoring of WUS before PO according to the WUS support capability of the base station and the WUS group corresponding to the terminal device specifically includes: When the WUS group corresponding to the terminal device supported by the base station is obtained according to the number of WUS groups supported by the base station, WUS is monitored before PO.

5. The method according to claim 4, characterized in that When obtaining the WUS group corresponding to the terminal device supported by the base station according to the number of WUS groups supported by the base station, monitoring WUS before PO specifically includes: When the number of WUS groups supported by the base station is equal to or greater than the number of WUS groups corresponding to the terminal device, WUS is monitored before PO.

6. The method according to any one of claims 1 to 3, characterized in that The method further comprises: When the number of WUS groups supported by the base station is less than the number of WUS groups corresponding to the terminal device, obtaining the WUS group corresponding to the terminal device that is not supported by the base station; Monitor PEI, or directly monitor PDCCH in PO.

7. The method according to any one of claims 1 to 6, characterized in that The method further comprises: When the WUS is monitored, the PDCCH of PO is monitored.

8. The method according to any one of claims 3 to 7, characterized in that: The method further comprises: Obtaining a paging group corresponding to the terminal device; When the WUS is monitored and the WUS includes the paging group information corresponding to the terminal device, monitoring the PDCCH in PO; or, When the PEI is monitored and the PEI includes the paging group information corresponding to the terminal device, the PDCCH is monitored in the PO.

9. The method according to claim 8, characterized in that The second configuration information may further include a total number of PO groups, the first configuration information may further include a CN group configured by a core network, and the obtaining of a paging group corresponding to the terminal device may specifically include: The paging group corresponding to the terminal device is obtained according to the total number of groups of the PO and / or the CN group configured by the core network for the terminal device.

10. The method according to any one of claims 1 to 9, characterized in that The method further comprises: A group fallback indication message is received, where the group fallback indication message is used to instruct the terminal device to monitor WUS or PEI when the base station does not support the WUS group corresponding to the terminal device.

11. The method according to any one of claims 1 to 10, characterized in that The method further comprises: The WUS is monitored before each of the POs according to the paging cycle.

12. A paging method, characterized in that: Applied to a base station, the method comprises: Sending second configuration information to the terminal device, where the second configuration information includes the WUS support capability of the base station; receiving a paging message, wherein the paging message includes a WUS group corresponding to the terminal device being paged; The WUS is sent before PO according to the WUS support capability of the base station and the WUS group corresponding to the terminal device.

13. The method according to claim 12, characterized in that The sending of the WUS according to the WUS support capability of the base station and the WUS group corresponding to the paged terminal device specifically includes: When the WUS group corresponding to the terminal device supported by the base station is obtained according to the number of WUS groups supported by the base station, the WUS is sent before the PO.

14. The method according to claim 13, characterized in that When obtaining the WUS group corresponding to the terminal device supported by the base station according to the number of WUS groups supported by the base station, sending the WUS before the PO specifically includes: When the number of WUS groups supported by the base station is equal to or greater than the number of WUS groups corresponding to the terminal device, WUS is sent before PO.

15. The method according to claim 13, characterized in that The method further comprises: When the number of WUS groups supported by the base station is less than the number of WUS groups corresponding to the terminal device, PEI is sent before PO, or PDCCH is sent directly in PO.

16. The method according to any one of claims 12 to 15, characterized in that: The method further comprises: Receiving first information sent by a terminal device, where the first information is used to indicate a capability of the terminal device to support WUS or WUS grouping information expected by the terminal device; Forwarding to the core network the capability of the terminal device to support WUS or the WUS grouping information expected by the terminal device; Receiving WUS grouping information configured by the core network to the terminal device; The WUS grouping information is sent to the terminal device.

17. The method according to claim 12, characterized in that The paging message also includes an identifier of the terminal device being paged, and the method further includes: The identifier of the paged terminal device and the WUS grouping information corresponding to the paged terminal device are sent to other base stations.

18. A terminal device, characterized in that: include: one or more processors; one or more memories; The one or more memories store one or more computer programs, and the one or more computer programs include instructions. When the instructions are executed by the one or more processors, the terminal device performs the method according to any one of claims 1 to 11.

19. A base station, characterized in that: include: one or more processors; one or more memories; The one or more memories store one or more computer programs, and the one or more computer programs include instructions, which, when executed by the one or more processors, enable the base station to perform the method according to any one of claims 12 to 17.

20. A communication system, characterized in that: The method comprises a terminal device and a base station, wherein the terminal device is used to execute the method according to any one of claims 1 to 11, and the base station is used to execute the method according to any one of claims 12 to 17.

21. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable program instructions, which, when executed on a computer, enable the computer to execute the method according to any one of claims 1 to 11 or the method according to any one of claims 12 to 17.

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