RU2843968C2 - Information transmission method and device, communication device and information storage medium - Google Patents

Abstract

FIELD: wireless communication.

SUBSTANCE: invention relates to wireless communication engineering. Base station receives first capability indication information that indicates whether user equipment (UE) supports early paging indication (PEI) and a UE identifier (UE_ID) paging grouping scheme, respectively; or the first capability indication information indicates that the UE supports a UE_ID paging grouping scheme with PEI support.

EFFECT: simplified process of paging and saving energy of user equipment (UE).

13 cl, 14 dwg

Description

AREA OF TECHNOLOGY

[0001] The present invention relates, among other things, to the field of wireless communication technology, and more specifically, to a method and device for transmitting information, a communication device and an information carrier.

PREREQUISITES FOR THE CREATION OF THE INVENTION

[0002] In the prior art, all user equipment (UE) goes into an active state to monitor a paging message during a paging event (PO). The probability that a UE will receive a paging message during a PO is different for each UE. A UE with a low probability of receiving a paging message goes into an active mode together with a UE for which the probability of receiving a paging message is high. The probability that a UE with a low probability of receiving a paging message will go into an active mode by mistake is high, which leads to an increase in erroneous notifications and unwanted power consumption/loss.

ESSENCE OF THE INVENTION

[0003] In view of the above problem, according to embodiments of the present invention, a method and apparatus for transmitting information, a communication device and an information carrier are provided.

[0004] According to a first aspect of embodiments of the present invention, a method for transmitting information is proposed. The method is performed by a base station and includes receiving first capability indication information, wherein the first capability indication information indicates whether a user equipment (UE) supports an early paging indication (PEI).

[0005] According to a second aspect of embodiments of the present invention, a method for transmitting information is provided. The method is performed by a UE and includes transmitting first capability indication information, wherein the first capability indication information indicates whether the UE supports an early paging indication (PEI).

[0006] According to a third aspect of embodiments of the present invention, a method for transmitting information is provided. The method is performed by a core network device and includes receiving first capability indication information, wherein the first capability indication information indicates whether the UE supports an early paging indication (PEI).

[0007] According to a fourth aspect of the embodiments of the present invention, an information transmitting device is proposed. The device comprises a first receiving module configured to receive first capability indication information, wherein the first capability indication information indicates whether the UE supports an early paging indication (PEI).

[0008] According to a fifth aspect of embodiments of the present invention, an information transmitting device is provided. The device comprises a third transmitting module configured to transmit first capability indication information, wherein the first capability indication information indicates whether the UE supports an early paging indication (PEI).

[0009] According to a sixth aspect of embodiments of the present invention, an information transmitting device is provided. The device comprises a third receiving module configured to receive first capability indication information, wherein the first capability indication information indicates whether the UE supports an early paging indication (PEI).

[0010] According to a seventh aspect of the embodiments of the present invention, a communication device is proposed, comprising a processor and a memory, in which an executable program is stored, which is launched by the processor, when executed by the processor, the steps of the method for transmitting information in accordance with the first aspect or the second aspect are implemented.

[0011] According to an eighth aspect of the embodiments of the present invention, a storage medium is provided on which an executable program is stored. When the program is executed by the processor, the steps of the method for transmitting information according to the first aspect or the second aspect are implemented.

[0012] According to the information transmission method and device, the communication device, and the information carrier, the base station receives first capability indication information that indicates whether the UE supports an early paging indication (PEI). In this way, the base station can determine the PEI capability of the UE using the capability indication information that indicates whether the UE supports the early paging indication (PEI). This can reduce the level of erroneous determination of the UE capability that occurs due to the base station being unaware of the PEI capability of the UE, and improve the accuracy of the base station in estimating the PEI capability of the UE.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention.

BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the description of the present invention and, together with the description, help to understand the principles of carrying out the present invention.

[0015] Fig. 1 is a block diagram illustrating a wireless communication system according to an exemplary embodiment of the present invention.

[0016] Fig. 2 shows an algorithm illustrating a method for transmitting information in accordance with an example of implementing the present invention.

[0017] Fig. 3 shows an algorithm illustrating another method for transmitting information in accordance with an example of embodiment of the present invention.

[0018] Fig. 4 shows an algorithm illustrating another method for transmitting information in accordance with an example of implementing the present invention.

[0019] Fig. 5 shows an algorithm illustrating another method for transmitting information in accordance with an example of implementing the present invention.

[0020] Fig. 6 shows an algorithm illustrating another method for transmitting information in accordance with an example of embodiment of the present invention.

[0021] Fig. 7 shows an algorithm illustrating another method for transmitting information in accordance with an example of embodiment of the present invention.

[0022] Fig. 8 shows an algorithm illustrating another method for transmitting information in accordance with an example of embodiment of the present invention.

[0023] Fig. 9 shows an algorithm illustrating another method for transmitting information in accordance with an example of embodiment of the present invention.

[0024] Fig. 10 shows an algorithm illustrating another method for transmitting information in accordance with an example embodiment of the present invention.

[0025] Fig. 11 shows a block diagram of an information transmission device according to an example embodiment of the present invention.

[0026] Fig. 12 shows a block diagram of another information transmission device according to an example embodiment of the present invention.

[0027] Fig. 13 shows a block diagram of another information transmission device according to an example embodiment of the present invention.

[0028] Fig. 14 shows a block diagram of another information transmission device according to an example embodiment of the present invention.

DETAILED DESCRIPTION

[0029] The following describes in more detail the embodiments of the present invention, illustrated by means of the accompanying drawings. The following description is given with reference to the accompanying drawings, in which the same numerals designate the same or similar elements, unless explicitly stated otherwise. The embodiments set forth in the following description do not cover all embodiments that do not contradict the description of the present invention. On the contrary, this description only provides examples of the implementation of devices and methods corresponding to some aspects of the embodiments of the present invention, the essence of which is set forth in the appended claims.

[0030] The terms used in the description of the present invention are used only for the purpose of describing particular embodiments and should not be construed as limiting the present invention. As used in the description of the present invention and in the appended claims, the singular forms expressed by the terms "one", "particular" and "said" also include plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein represents and includes any combination and all possible combinations of one or more related recited elements.

[0031] It should be noted that although the terms "first," "second," "third," and the like may be used to describe various information in embodiments of the present invention, this information should not be limited to these terms. These terms are used only to distinguish information of the same type. For example, without departing from the scope of the present invention, first information may also refer to second information, and similarly, second information may also refer to first information. The word "if" as used in this description may be interpreted as "in the event of" or "upon," or "in response to a determination that...," depending on the context.

[0032] Fig. 1 shows a structural diagram of a wireless communication system according to an embodiment of the present invention. As shown in Fig. 1, the wireless communication system is a communication system based on cellular mobile communication technology. The wireless communication system may include multiple terminals 110 and multiple base stations 12.

[0033] Terminal 11 may be a device that provides a user with voice and/or data communications. Terminal 11 may communicate with one or more core networks via a radio access network (RAN), and terminal 11 may be an "Internet of Things" terminal, such as a sensor, a mobile phone (also called a "cellular" phone), and a computer equipped with an IoT terminal. For example, terminal 11 may be a fixed, portable, handheld, handheld, built-in computer, or mobile device. For example, terminal 11 may be a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or user equipment (UE). Alternatively, terminal 11 may be an unmanned aerial vehicle. Alternatively, the terminal 11 may also be a mobile device, such as a mobile computer with wireless communication function or a wireless communication device externally connected to a mobile computer. Alternatively, the terminal 11 may also be a roadside device, such as a street lamp, a signal lamp or other roadside device equipped with wireless communication means.

[0034] The base station 12 may be a device on the network side in a wireless communication system. The wireless communication system may be a fourth generation (4G) mobile communication system, also called a Long Term Evolution (LTE) system. Alternatively, the wireless communication system may also be a 5G system, also called a New Radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may also be a new generation 5G system. The access network in the 5G system may be called a New Generation-Radio Access Network (NG-RAN). Alternatively, the wireless communication system may be a Machine Type Communication (MTC) system.

[0035] The base station 12 may be an enhanced base station (eNB) used in the 4G system. Alternatively, the base station 12 may be a base station that uses a centralized-distributed architecture (gNB) used in the 5G system. If the base station 12 uses a centralized-distributed architecture, the base station typically includes a central unit (CU) and at least two distributed units (DU). The CU supports protocol stacks including a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a media access control (MAC) layer. A physical layer (PHYsical) protocol stack is configured in the DU. The specific implementation of the base station 12 is not limited in the embodiments of the present invention.

[0036] A wireless connection can be established between the base station 12 and the terminal 11 via a wireless radio interface. According to various embodiments, the wireless radio interface is a radio interface based on a fourth-generation (4G) mobile network technology standard or on a fifth-generation (5G) mobile network technology standard. For example, the wireless radio interface is an interface of a new radio technology system. Alternatively, the wireless radio interface may also be a radio interface based on a next-generation 5G mobile network technology standard.

[0037] According to some embodiments, an end-to-end (E2E) connection may also be established between terminals 110, such as in vehicle-to-vehicle (V2V) communications, vehicle to infrastructure (V2I) communications, vehicle to pedestrian (V2P) communications, and other vehicle to everything (V2X) communications scenarios.

[0038] According to some embodiments, the above-mentioned wireless communication system may also comprise a network management device 13.

[0039] The plurality of base stations 12 are respectively connected to a network control device 13. The network control device 13 may be a core network device in a wireless communication system. For example, the network control device 13 may be a mobility management entity (MME) in an evolved packet core network (EPC). Alternatively, the network control device may also be other core network devices such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber server (HSS), and the like. The implementation forms of the network control device 13 are not limited to the embodiment of the present invention.

[0040] The object performing the operations involved in the embodiments includes, but is not limited to the given examples, a mobile telephone terminal, a network side device (such as a base station and other network access devices) and a core network device in a cellular mobile communication system.

[0041] In the event that all UEs are transitioned to the awake mode during a PO, the UEs may be grouped for paging. The grouping information may be carried in the paging Downlink Control Information (Paging DCI) or in the paging early indication (PEI). The UE determines whether to transition to the awake mode during a PO based on the grouping information. The grouping information may be used to determine the group to which the UE belongs. For example, the grouping information may contain a subgroup ID, etc.

[0042] One method of grouping is grouping based on user equipment identification information (UE_ID, UE Identification). The group may be determined based on the following expression:

[0043] (1),

[0044] where represents the index of various paging group resources. The method of using the UE_ID module is a random selection or random distribution method (randomization). That is, the module is taken according to the UE_ID in all paging group resources. represents the density of paging frames in the time domain, represents the paging density within a paging frame in the time domain, represents a narrowband paging channel, and represents the total number of paging group resources.

[0045] Another grouping method is performed by using a core network device as a unified node. According to this method, the subgroup ID is directly assigned in the NR. At the same time, if the network assigns the subgroup ID, it is assigned based on the implementation, such as terminal attributes or statistical probability of paging, and so on.

[0046] For example, PEI may use 1 bit to wake up all UEs, i.e., non-grouped UEs may wake up.

[0047] Thus, if two paging grouping methods are applied and PEI can wake up ungrouped UEs, an important problem to be solved is the implementation of a UE wake-up method based on PEI.

[0048] As shown in Fig. 2, according to an embodiment, a method for transmitting information is proposed, which can be performed by a base station in a cellular mobile communication system. The method includes the following step 201, described below.

[0049] In step 201, first capability indication information is received. The first capability indication information indicates whether the UE supports an early paging indication (PEI).

[0050] The PEI may be used to instruct the UE to transition to the active state and monitor the paging message for a predetermined PO. In this case, the PO may include one or more POs after the PEI. Determining whether the PEI is supported, without being limited to the above operation, may include determining whether the wake-up is supported for a predetermined PO based on the PEI indication.

[0051] The PEI may be used to wake up all UEs, and may also be used to wake up UEs in a predetermined range (e.g., a predetermined group, a predetermined type, and the like). The PEI may contain different indication information for UEs in different groups and be used to wake up UEs in different groups. Determining whether the PEI is supported, without being limited to the above operation, may include determining whether the PEI is supported for waking up all UEs, and/or whether the PEI is supported for waking up UEs within a predetermined range.

[0052] The capability indication information may be transmitted from the UE to the base station, or transmitted by a core network device to the base station, or transmitted by an equivalent base station.

[0053] The UE may carry capability indication information in uplink signaling during random access or after establishing a Radio Resource Control (RRC) connection.

[0054] After receiving the capability indication information, the base station can determine whether the UE supports the early paging indication (PEI). If the UE supports the PEI, the base station uses the PEI supported by the UE to wake up the UE for the purpose of PO monitoring. This eliminates the situation in which the base station cannot determine whether the UE supports the early paging indication (PEI) and transmits the PEI to a UE that does not support the PEI or does not transmit the PEI to a UE that supports the PEI. Transmitting the PEI to a UE that does not support the PEI may increase the workload of the base station. If the PEI is not transmitted to a UE that supports the PEI, then since the UE cannot receive the PEI, it is necessary to frequently wake up the equipment for PO monitoring, resulting in increased power consumption of the UE.

[0055] Thus, the capability indication information indicates whether the UE supports early paging indication (PEI). The base station can determine the PEI capability of the UE, which reduces the level of erroneous determination of the UE capabilities caused by the base station not being aware of the PEI capability of the UE, and improves the accuracy of the base station's assessment of the PEI capability of the UE.

[0056] According to an embodiment, the first capability indication information indicates whether the UE supports a first PEI type; and/or whether the UE supports a second PEI type, wherein the first PEI type is different from the second PEI type.

[0057] According to an embodiment, the first PEI type may comprise 1 bit for indicating whether the UE should be activated. In addition to the paging indication, the first PEI type may also be used for subsequent extension to carry other information. For example, the first PEI type carries information indicating the availability of a reference signal. In this case, a preferred embodiment of the first PEI type is a PEI for indicating no grouping.

[0058] According to an embodiment, the second type of PEI may comprise a plurality of bits to indicate whether the UE should be woken up.

[0059] The first type of PEI is a common PEI that can be used to activate all UEs that need to monitor the same PO.

[0060] The second type of PEI is a paging group PEI, which can be used to wake up all UEs monitoring the same PO within the corresponding paging group according to the paging group.

[0061] If the PEI contains 1 bit, i.e. the PEI is the first type of PEI, then the PEI can be used to wake up all UEs that receive the PEI. That is, the first type of PEI does not distinguish the paging group of UEs.

[0062] If the PEI comprises a plurality of bits, i.e. the PEI is a second type of PEI, then each of the plurality of bits can be used to activate one or more UEs in a paging group. That is, the paging group of UEs is distinguished using the second type of PEI.

[0063] For example, the PEI may contain POnumPerPEI segments, which may be designated as a subgroupsNumPerPO field. Each of the segments may correspond to one PO. Each of the segments contains subgroupsNumPerPO bits, each of which carries a paging indication. The paging indication is used to indicate whether to perform paging for one or more paging groups in the corresponding PO.

[0064] PEI is the first type of PEI, and the subgroupsNumPerPO field contains 1 paging indication bit, which is used to wake up all UEs receiving the PEI to monitor the paging message during the PO. For example, if the paging indication bit is "1", all UEs receiving the PEI are woken up to monitor the paging message during the PO period. If the paging indication bit is "0", this instructs the UE to remain in the sleep/inactive state during the PO period, for example, to support the RRC idle state or the RRC dormant state.

[0065] PEI is the second type of PEI and the subgroupsNumPerPO field contains a plurality of bits, each of which may correspond to a paging group. UEs in different paging groups determine whether to enter the active mode during the PO period based on the bit corresponding to their own group. For example, the subgroupsNumPerPO field contains two bits corresponding to two paging groups. If one of the two bits is "1", then the UE in the paging group corresponding to this bit is activated to monitor the paging message during the PO. If the other of the two bits is "0", this indicates that the UE in the paging group corresponding to this bit remains in the inactive state during the PO.

[0066] The capability indication information may be used to indicate whether the UE supports the first PEI type and/or the second PEI type.

[0067] If the capability indication information indicates that the UE supports the first PEI type, the base station may use the first PEI type to wake up the UE for the purpose of monitoring the PO. This eliminates the situation in which the UE needs to wake up at each PO and reduces the power consumption of the UE.

[0068] If the capability indication information indicates that the UE supports the second type of PEI, the base station may use the second type of PEI to wake up the UE based on the paging group to monitor the PO. This eliminates the situation in which the UE wakes up at the PO if no paging message is transmitted for the paging group to which the UE belongs, and thus reduces the power consumption of the UE.

[0069] Thus, the capability indication information indicates whether the UE supports an early paging indication (PEI). The base station may determine the PEI capability of the UE and transmit the PEI supported by the UE to wake up the UE for the purpose of monitoring the PO based on the PEI capability of the UE. If the UE does not need to be woken up, the UE is not woken up for monitoring, and thus, excessive power consumption caused by frequent UE wake-up is reduced.

[0070] According to an embodiment, determining whether the UE supports a second type of PEI includes determining whether the UE supports a second type of PEI corresponding to at least a first type of grouping paging mode; and/or whether the UE supports a second type of PEI corresponding to at least a second type of grouping paging mode.

[0071] The first type of paging grouping mode and the second type of paging grouping mode use different methods of dividing into paging groups. The first type of paging grouping mode and the second type of paging grouping mode may also be implemented by different network nodes. The first type of paging grouping mode and the second type of paging grouping mode may also be implemented by one network node.

[0072] A core network device or a base station and the like may perform division into paging groups using different paging grouping modes, respectively, thereby generating different types of paging groups. In each paging grouping mode, a plurality of paging groups may be generated by division. For example, UEs may be grouped based on service types or their transmission rates and the like.

[0073] A second PEI type, at least corresponding to a first type of paging grouping mode, may be used to at least indicate whether to wake up the UE in a paging group corresponding to the first type of paging grouping mode.

[0074] A second type of PEI, at least corresponding to a second type of grouping paging mode, may be used to at least indicate whether the UE should be woken up in a paging group corresponding to the second type of grouping paging mode.

[0075] According to an embodiment, the first type of paging grouping mode includes a paging grouping mode in which the paging group is determined by a core network device; and the second type of paging grouping mode includes a paging grouping mode in which the paging group is determined based on a UE identifier.

[0076] The first type of paging grouping mode may be a mode in which the core network device divides paging groups based on UE attributes. In this case, the UE attributes may include, but are not limited to, a UE service type, a number of UE transmission sessions, a UE bandwidth, and the like.

[0077] The second type of paging grouping mode may be a mode in which a network access device, such as a base station, divides paging groups based on UE identification information (UE_ID). For example, the base station may use the above expression (1) to determine the paging group of the UE.

[0078] Each bit of the plurality of bits of the second type of PEI may be used to indicate whether one or more paging groups are activated during a predetermined PO. In this case, the paging groups may include paging groups divided by a first type of paging grouping mode or paging groups divided by a second type of paging grouping mode.

[0079] For example, the second type of PEI may comprise 8 bits, wherein each of the 4 bits indicates each of the 4 paging groups divided by the first type of paging grouping mode, and each of the other 4 bits indicates each of the 4 paging groups divided by the second type of paging grouping mode.

[0080] The second type of PEI, at least corresponding to the first type of grouping paging mode, may include a second type of PEI corresponding only to the first type of grouping paging mode, or may include a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode.

[0081] The second type of PEI corresponding to at least the second type of grouping paging mode may include a second type of PEI corresponding only to the second type of grouping paging mode, and may also include a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode.

[0082] Using capability indication information that indicates whether the UE supports an early paging indication (PEI) corresponding to different types of paging groups, the base station can determine the supported capabilities of the UE for the PEI corresponding to different paging groups, then transmit the PEI corresponding to the type of paging group for the UE in order to wake up the UE for the purpose of monitoring the PO, which eliminates a situation in which the UE wakes up during a PO for other types of paging groups, and at the same time reduces excessive power consumption of the UE caused by waking up in an incorrect PO.

[0083] As shown in Fig. 3, according to an embodiment, a method for transmitting information is proposed. The method also includes at least one of the following steps: 301a-301b.

[0084] In step 301a, if the first capability indication information indicates that the UE supports the second PEI type, then it is determined that the UE supports the first PEI type.

[0085] In step 301b, if the first capability indication information indicates that the UE does not support a second PEI type at least corresponding to a first type of grouping paging mode, and the second PEI type at least corresponding to a second type of grouping paging mode, it is determined that the UE does not support the first PEI type.

[0086] In this case, steps 301a or 301b may be implemented separately or in conjunction with step 201.

[0087] The capability indication information may indicate whether the UE supports early paging indication (PEI) and PEI corresponding to different paging grouping modes, etc. through explicit indication. The capability indication information may also indicate whether the UE supports early paging indication (PEI) and PEI corresponding to different paging grouping modes, etc. through implicit indication.

[0088] For example, if the capability indication information indicates that the UE supports a second PEI type, the capability indication information explicitly indicates that the UE also supports a first PEI type. In this case, the second PEI type may include a second PEI type corresponding to at least a first type of grouping paging mode and/or a second PEI type corresponding to at least a second type of grouping paging mode.

[0089] For example, if the capability indication information indicates that the UE does not support the second PEI type, the capability indication information implicitly indicates that the UE also does not support the first PEI type. In this case, the second PEI type may include a second PEI type corresponding to at least the first type of grouping paging mode and a second PEI type corresponding to at least the second type of grouping paging mode.

[0090] The method of explicit and/or implicit indication by means of capability indication information may be specified in a communication protocol or by means of joint negotiation between a core network device, base stations and a UE.

[0091] The method of explicit and/or implicit indication by means of capability indication information can be implemented, without being limited to the given examples, using the following modes.

[0092] In mode 1, it may be separately indicated whether the UE supports the first PEI type and the second PEI type.

[0093] The capability indication information may separately indicate to the base station that the UE supports the first PEI type.

[0094] The capability indication information may separately indicate to the base station that the UE supports a second PEI type at least corresponding to a second type of grouped paging mode.

[0095] In mode 2, the capability indication information indicates whether the first PEI type and the second PEI type are supported.

[0096] The capability indication information indicates that the UE supports the second PEI type and implicitly indicates that the UE supports the first PEI type.

[0097] If the UE supports the first PEI type, the equipment may report capability indication information indicating that the UE supports the first PEI type and also indicating that the UE supports the second PEI type.

[0098] The UE may only report capability indication information indicating that the UE supports the first PEI type, while implicitly indicating that the UE does not support the second PEI type.

[0099] The UE may report capability indication information indicating that the UE supports both the first PEI type and the second PEI type. The capability indication information may use two flags to respectively indicate that the UE supports the first PEI type and the second PEI type.

[0100] The UE may report capability indication information indicating that the UE supports the first PEI type but does not support the second PEI type. Support for only the first PEI type may be indicated by the absence of a flag in the message, i.e., an implicit indication that the UE does not support the second PEI type because the corresponding flag is missing.

[0101] The UE may report capability indication information indicating that the UE supports a second PEI type. Reporting that the UE supports the second PEI type implicitly indicates that the UE supports the first PEI type.

[0102] The capability indication information reported by the UE indicates whether the UE supports a second type of PEI, and this may include an indication of whether the UE supports a second type of PEI corresponding to at least a second type of grouped paging mode.

[0103] In mode 3, the UE may only report to the base station whether the UE supports a second type of PEI corresponding to at least the second type of grouped paging mode.

[0104] The base station may also obtain from the core network device capability indication information on whether the UE supports the second type of PEI corresponding to at least the first type of grouping paging mode. That is, the base station obtains from the core network device information on whether the UE supports the second type of PEI. Then, the base station combines the two approaches to obtain the capabilities of the UE.

[0105] If the base station determines that the UE supports a second type of PEI at least corresponding to a first type of grouping paging mode, or supports a second type of PEI at least corresponding to a second type of grouping paging mode, then it is determined that the UE supports the first type of PEI.

[0106] If the base station determines that the UE does not support the second type of PEI corresponding to at least the first type of grouping paging mode, or does not support the second type of PEI corresponding to at least the second type of grouping paging mode, then it is determined that the UE does not support the first type of PEI.

[0107] According to an embodiment, receiving the first capability indication information includes at least receiving from the UE a first capability indication information indicating whether the UE supports a first PEI type; receiving from the UE a first capability indication information indicating whether the UE supports a second PEI type corresponding to at least a second type of grouped paging mode; receiving from a core network device a first capability indication information or receiving from an equivalent base station a first capability indication information.

[0108] The UE may determine whether the UE itself supports the first PEI type. In this way, the UE may transmit capability indication information to the base station indicating whether the UE supports the first PEI type.

[0109] The UE may determine whether the UE itself supports a second type of PEI corresponding to at least a second type of grouping paging mode. For example, the UE may determine whether the UE itself supports the grouping paging mode based on the UE_ID. In this way, the UE may transmit capability indication information to the base station indicating whether the UE supports a second type of PEI corresponding to at least a second type of grouping paging mode.

[0110] For example, the base station determines based on capability indication information reported from the UE that the terminal supports a second type of PEI corresponding to at least a second type of grouping paging mode. The base station determines based on capability indication information reported from the UE that the terminal does not support the second type of PEI corresponding to at least the second type of grouping paging mode. Alternatively, the base station does not receive the capability indication information, wherein it is determined that the terminal does not support the second type of PEI corresponding to at least the second type of grouping paging mode.

[0111] According to an embodiment, the capability indication information may be carried in UE capability information (UECapabilityInformation) or in an uplink auxiliary message. The UE capability information indicates at least a frequency supported by the UE.

[0112] If the UE exits the RRC connected state, the UE may carry capability indication information in an uplink auxiliary message.

[0113] The capability indication information may also be transmitted to the base station by the core network device, and the capability indication information indicates whether the UE supports a first type of PEI, and whether the UE supports a second type of PEI, at least corresponding to the second type of grouping paging mode.

[0114] The UE may indicate to the core network device the support of the second type of PEI, at least corresponding to the first type of grouped paging mode, using Non Access Stratum (NAS) signaling. Thus, the capability indication information transmitted to the base station by the core network device may also indicate whether the UE supports the second type of PEI, at least corresponding to the first type of grouped paging mode.

[0115] For example, whether the terminal supports the second type of PEI corresponding to at least the first type of grouping paging mode is determined by the base station through an explicit indication based on capability indication information transmitted by the core network device.

[0116] UE capabilities may also be transmitted between base stations. Capability indication information may be transmitted by an equivalent base station.

[0117] For example, the UE may be an inactive UE, and the equivalent base station may be a reference base station of the UE. The reference base station stores capability indication information indicating whether the UE supports early paging indication (PEI). If the UE performs cell reselection in the coverage area of the current base station, the current base station may obtain capability indication information from the reference base station and then determine whether the UE supports early paging indication (PEI).

[0118] For example, if a UE in an active state performs cell reselection, the base station receives a terminal capability message from the reference base station.

[0119] For example, capability indication information may be carried in a UE context message and transmitted to a base station. Capability indication information may be carried in a paging message from a core network device and transmitted to the base station.

[0120] The base station may directly determine whether the UE supports the first PEI type based on capability indication information transmitted by the equivalent base station.

[0121] The base station may directly determine whether the UE supports a second type of PEI corresponding to at least a first type of grouping paging mode based on capability indication information transmitted by an equivalent base station.

[0122] The base station may directly determine whether the UE supports a second type of PEI, at least corresponding to a second type of grouping paging mode, based on capability indication information transmitted by an equivalent base station.

[0123] The base station determines that the UE supports the first type of PEI based on the UE supporting the second type of PEI corresponding to at least the first type of grouping paging mode, or the UE supporting the second type of PEI corresponding to at least the second type of grouping paging mode.

[0124] The base station determines that the UE does not support the first PEI type based on the UE not supporting the second PEI type corresponding to at least the first type of grouping paging mode, or the UE does not support the second PEI type corresponding to at least the second type of grouping paging mode.

[0125] According to an embodiment, if the equivalent terminal base station transmits grouping information of a first type of grouping paging mode to the UE, it is determined that the UE supports a second type of PEI at least corresponding to the first type of grouping paging mode.

[0126] According to an embodiment, receiving first capability indication information from a core network device includes the following operation: if grouping information of a first type of grouping paging mode of the UE is received from the core network device, determining that the UE supports a second type of PEI at least corresponding to the first type of grouping paging mode.

[0127] The first capability indication information may be information about grouping of a first grouping mode of paging of the UE. If the core network device transmits information about grouping of a first type of grouping mode of paging of the UE to the base station, it may be determined that the UE supports a second type of PEI corresponding to at least the first type of grouping mode of paging.

[0128] The grouping information may indicate a paging group. The grouping information may be a subgroup ID of the UE. If the core network device assigns a subgroup ID to the UE, it may be determined that the terminal supports a second type of PEI that at least corresponds to a first type of grouping paging mode. It may be considered that the grouping information transmitted by the core network device is a method for implicitly indicating that the terminal supports the second type of PEI that at least corresponds to the first type of grouping paging mode.

[0129] For example, the terminal supports a second type of PEI that at least corresponds to a first type of paging grouping mode that is determined by a base station based on a subgroup ID transmitted by a core network device.

[0130] As shown in Fig. 4, according to an embodiment, a method for transmitting information is proposed. The method also includes at least one of the following steps: 401a-401d.

[0131] In step 401a, second capability indication information indicating whether the UE supports the first PEI type is transmitted to the equivalent base station.

[0132] In step 401b, second capability indication information indicating whether the UE supports the second PEI type is transmitted to the equivalent base station.

[0133] In step 401c, second capability indication information indicating whether the UE supports the first PEI type is transmitted to the core network device.

[0134] In step 401d, second capability indication information indicating whether the UE supports a second type of PEI at least corresponding to a second type of grouping paging mode is transmitted to the core network device.

[0135] In this case, steps 401a, 401b, 401c and/or 401d may be implemented individually or in combination with steps 301a, 301b and/or 201.

[0136] Information about UE capabilities may also be transmitted between base stations. A base station may transmit capability indication information to an equivalent base station.

[0137] For example, the UE may be a UE in an active state, the equivalent base station may be a base station in which the UE performs cell reselection, and the reference base station stores capability indication information indicating whether the UE supports early paging indication (PEI). If the UE performs cell reselection in the coverage area of the equivalent base station, the reference base station may transmit capability indication information to the equivalent base station, and the equivalent base station may determine whether the UE supports early paging indication (PEI).

[0138] Capability indication information transmitted between base stations may indicate whether the UE supports a first PEI type and/or whether the UE supports a second PEI type.

[0139] After the base station receives the capability indication information reported by the UE, the base station may report the capabilities of the UE to the core network device. The capability indication information reported by the UE may indicate whether the UE supports a first PEI type and/or whether the UE supports a second PEI type corresponding to at least a second type of grouping paging mode. Thus, the capability indication information transmitted by the base station may also indicate whether the UE supports the first PEI type and/or whether the UE supports a second PEI type corresponding to at least a second type of grouping paging mode.

[0140] For example, the UE reports capabilities to the base station for the UE supporting PEI using capability indication information, and the base station notifies the core network device using the capability indication information. The capability indication information may indicate whether the UE supports a first type of PEI, and/or whether the UE supports a second type of PEI corresponding to at least a second type of grouping paging mode. Information on whether the UE supports a second type of PEI corresponding to at least the first type of grouping paging mode is transmitted by the terminal to the core network device using NAS signaling, and at this time, the base station does not need to transmit a report.

[0141] For example, capability indication information may be carried in the following messages: UE CAPABILITY INFO INDICATION or RRC INACTIVE TRANSITION REPORT.

[0142] According to an embodiment, the base station transmits to the UE a PEI supported by the UE.

[0143] After the base station determines the PEI that the UE can support, the base station can transmit the PEI that the UE can support to the UE in a subsequent paging process. In this way, the base station can transmit the PEI supported by the UE, activate the UE, and control the PO. If there is no need to activate the UE, the UE is not activated, and thus the excessive power consumption caused by frequent activation of the UE is reduced.

[0144] As shown in Fig. 5, according to an embodiment, a method for transmitting information is proposed. The method also includes step 501.

[0145] In step 501, third capability indication information is transmitted to the UE. The third capability indication information is configured for the UE to determine the PEI that the base station is capable of transmitting.

[0146] In this case, step 501 may be implemented alone or in combination with step 301a, step 301b, step 401a, step 401b, step 401c, step 401d and/or step 201.

[0147] The capability indication information may indicate a PEI that the base station is capable of transmitting. The UE may determine whether to monitor the PEI transmitted by the base station based on the PEI that the base station is capable of transmitting and the PEI supported by the UE itself.

[0148] For example, if the UE can support the PEI transmitted by the base station, the UE can monitor the PEI. If the UE cannot support the PEI transmitted by the base station, the UE cannot monitor the PEI transmitted by the base station.

[0149] If the UE does not monitor the PEI of the base station, the UE may wake up at each PO and monitor the paging message.

[0150] The capability indication information may be carried by common signaling. For example, the capability indication information may be carried in a system message and broadcast to the UE.

[0151] The capability indication information may be carried using dedicated signaling. For example, the capability indication information may be carried in an RRC message and transmitted to the UE.

[0152] According to an embodiment, the third capability indication information is configured for the UE to determine at least one of the following elements that the base station is capable of transmitting: a first PEI type; a second PEI type corresponding to a first type of grouping paging mode, wherein the first PEI is different from the second PEI type; a second PEI type corresponding to a second type of grouping paging mode; or a second PEI type corresponding to the first type of grouping paging mode and the second type of grouping paging mode.

[0153] For example, if a base station is capable of transmitting a first type of PEI, a UE supporting the first type of PEI may monitor the PEI and monitor a paging message based on the PEI indication.

[0154] For example, if the base station is capable of transmitting the first PEI type, then the UE that does not support the first PEI type and cannot monitor the PEI returns to the standard method and wakes up at each PO to monitor the paging message.

[0155] For example, if the base station is capable of transmitting a second type of PEI corresponding to a first type of grouping paging mode, then a UE supporting the second type of PEI corresponding to the first type of grouping paging mode may monitor the PEI and monitor a paging message based on the PEI indication.

[0156] According to an embodiment, the UE determines whether to transition to the active mode at PO based on the grouping information of the first type of paging grouping mode of the UE itself and the PEI indication.

[0157] For example, the PEI may indicate a group that needs to be activated in the first type of grouped paging mode, and the UE may determine whether to activate its own group.

[0158] For example, if the base station is capable of transmitting a second type of PEI corresponding to a first type of grouping paging mode, then a UE that does not support the second type of PEI corresponding to the first type of grouping paging mode cannot monitor the PEI, returns to the standard paging mode, and wakes up at each PO to monitor the paging message.

[0159] According to an embodiment, if a base station is capable of transmitting a second type of PEI corresponding to a first type of grouping paging mode, then a UE supporting the second type of PEI corresponding to the first type of grouping paging mode may monitor the PEI transmitted by the base station only if the UE is configured using grouping information of the first type of grouping paging mode, otherwise the UE does not monitor the PEI.

[0160] For example, if the base station is capable of transmitting a second type of PEI corresponding to a second type of grouping paging mode, then a UE supporting the second type of PEI corresponding to the second type of grouping paging mode may monitor the PEI and monitor a paging message based on the PEI indication.

[0161] For example, if the base station is capable of transmitting a second type of PEI corresponding to a second type of grouping paging mode, a UE that does not support the second type of PEI corresponding to the second type of grouping paging mode cannot monitor the PEI, returns to the standard paging mode, and wakes up at each PO to monitor the paging message.

[0162] For example, the base station is capable of transmitting a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode. If the UE supports the second type of PEI corresponding to at least the first type of grouping paging mode or the second type of PEI corresponding to at least the second type of grouping paging mode, the UE can monitor the PEI and monitor the paging message based on the PEI indication.

[0163] For example, the base station is capable of transmitting a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode. If the UE does not support either the second type of PEI corresponding to at least the first type of grouping paging mode or the second type of PEI corresponding to at least the second type of grouping paging mode, the UE cannot monitor the PEI, returns to the standard paging mode, and is activated at each PO to monitor the PO paging message.

[0164] According to an embodiment, if a base station is capable of transmitting a second type of PEI corresponding to both a first type of grouping paging mode and a second type of grouping paging mode, a UE that supports only the second type of PEI corresponding to the first type of grouping paging mode may monitor the PEI transmitted by the base station only if the UE is configured using grouping information of the first type of grouping paging mode, otherwise the UE does not monitor the PEI.

[0165] According to an embodiment, if a base station is capable of transmitting a second type of PEI corresponding to both a first type of grouping paging mode and a second type of grouping paging mode, and a UE supports a second type of PEI corresponding to at least the first type of grouping paging mode and a second type of PEI corresponding to at least the second type of grouping paging mode, the UE may monitor the PEI transmitted by the base station and use grouping information of the first type of grouping paging mode of the UE and grouping information of the second type of grouping paging mode to monitor/detect the PEI, and determine whether to activate a group corresponding to the grouping information of the first type of grouping paging mode or a group corresponding to the grouping information of the second type of grouping paging mode at a PO. In this case, the grouping information of the first type of the UE paging grouping mode may be a subgroup ID assigned by the core network device, and the grouping information of the first type of the UE paging grouping mode may be a subgroup ID determined based on the UE_ID.

[0166] As shown in Fig. 6, according to an embodiment, a method for transmitting information is proposed that can be performed by a UE in a cellular mobile communication system. The method includes step 601.

[0167] In step 601, first capability indication information is transmitted. The first capability indication information indicates whether the UE supports early paging indication (PEI).

[0168] The PEI may be used to instruct the UE to transition to the active state and monitor the paging message during a predetermined PO. In this case, the predetermined PO may include one or more POs after the PEI. Determining whether the PEI is supported, without being limited to the above operation, may include determining whether the wake-up is supported during the predetermined PO based on the PEI indication.

[0169] The PEI may be used to wake up all UEs, and may also be used to wake up UEs in a predetermined range (e.g., a predetermined group, a predetermined type, and the like). The PEI may contain different indication information for UEs in different groups and be used to wake up UEs in different groups. Determining whether the PEI is supported, without being limited to the above operation, may include determining whether the PEI is supported for waking up all UEs, and/or whether the PEI is supported for waking up UEs within a predetermined range.

[0170] The UE may carry capability indication information in uplink signaling during random access or after establishing an RRC connection. The UE may also carry capability indication information in NAS signaling and the like.

[0171] The capability indication information may be obtained by a base station, a core network device, and the like.

[0172] After receiving capability indication information, the base station can determine whether the UE supports early paging indication (PEI). If the UE supports PEI, the base station uses the PEI supported by the UE to wake up the UE for the purpose of PO monitoring. This eliminates the situation in which the base station cannot determine whether the UE supports early paging indication (PEI) and transmits PEI to a UE that does not support PEI or does not transmit PEI to a UE that supports PEI. Transmitting PEI to a UE that does not support PEI may increase the workload of the base station. If PEI is not transmitted to a UE that supports PEI, then since the UE cannot receive PEI, it is necessary to frequently wake up the equipment for PO monitoring, resulting in increased power consumption of the UE.

[0173] Thus, the capability indication information indicates whether the UE supports early paging indication (PEI). The base station can determine the PEI capability of the UE, which reduces the level of erroneous determination of the UE capability caused by the base station not being aware of the PEI capability of the UE, and improves the accuracy of the base station's assessment of the PEI capability of the UE.

[0174] According to an embodiment, the first capability indication information indicates whether the UE supports a first PEI type; and/or whether the UE supports a second PEI type, wherein the first PEI type is different from the second PEI type.

[0175] The first PEI type may contain 1 bit to indicate whether the UE should be activated. The second PEI type may contain multiple bits to indicate whether the UE should be activated.

[0176] The first type of PEI is a common PEI that can be used to activate all UEs that need to monitor the same PO.

[0177] The second type of PEI is a Paging Group PEI, which can be used to wake up all UEs monitoring the same PO within the corresponding paging group according to the paging group.

[0178] If the PEI contains 1 bit, i.e. the PEI is the first type of PEI, then the PEI can be used to wake up all UEs that receive the PEI. That is, the first type of PEI does not distinguish the paging group of UEs.

[0179] If the PEI contains a plurality of bits, that is, the PEI is a second type of PEI, then each of the plurality of bits can be used to activate one or more UEs in a paging group. That is, the paging group of UEs is distinguished using the second type of PEI.

[0180] For example, the PEI may contain POnumPerPEI segments, which may be designated as a subgroupsNumPerPO field. Each of the segments may correspond to one PO. Each of the segments contains subgroupsNumPerPO bits, each of which carries a paging indication. The paging indication is used to indicate whether to perform paging for one or more paging groups in the corresponding PO.

[0181] PEI is the first type of PEI, and the subgroupsNumPerPO field contains 1 paging indication bit, which is used to wake up all UEs receiving the PEI to monitor the paging message during the PO. For example, if the paging indication bit is "1", all UEs receiving the PEI are woken up to monitor the paging message during the PO period. If the paging indication bit is "0", this instructs the UE to remain in the sleep/inactive state during the PO period, for example, to support the RRC idle state or the RRC dormant state.

[0182] PEI is the second type of PEI and the subgroupsNumPerPO field contains a plurality of bits, each of which may correspond to a paging group. UEs in different paging groups determine whether to enter the active mode during the PO period based on the bit corresponding to their own group. For example, the subgroupsNumPerPO field contains two bits corresponding to two paging groups. If one of the two bits is "1", then the UE in the paging group corresponding to this bit is activated to monitor the paging message during the PO. If the other of the two bits is "0", this indicates that the UE in the paging group corresponding to this bit remains in the inactive state during the PO.

[0183] The capability indication information may be used to indicate whether the UE supports the first PEI type and/or the second PEI type.

[0184] If the capability indication information indicates that the UE supports the first PEI type, the base station may use the first PEI type to wake up the UE for the purpose of monitoring the PO. This eliminates the situation in which the UE needs to wake up at each PO and reduces the power consumption of the UE.

[0185] If the capability indication information indicates that the UE supports the second PEI type, the base station may use the second PEI type to wake up the UE based on the paging group to monitor the PO. This eliminates the situation in which the UE wakes up at the PO if no paging message is transmitted for the paging group to which the UE belongs, and thus reduces the power consumption of the UE.

[0186] Thus, the capability indication information indicates whether the UE supports early paging indication (PEI). The base station may determine the PEI capability of the UE and transmit the PEI supported by the UE to wake up the UE for the purpose of monitoring the PO based on the PEI capability of the UE. If the UE does not need to be woken up, the UE is not woken up for monitoring, and thus, excessive power consumption caused by frequent UE wakeup is reduced.

[0187] According to an embodiment, determining whether the UE supports a second type of PEI includes determining whether the UE supports a second type of PEI corresponding to at least a first type of grouping paging mode; and/or whether the UE supports a second type of PEI corresponding to at least a second type of grouping paging mode.

[0188] The first type of paging grouping mode and the second type of paging grouping mode use different methods of dividing into paging groups. The first type of paging grouping mode and the second type of paging grouping mode may also be implemented by different network nodes. The first type of paging grouping mode and the second type of paging grouping mode may also be implemented by one network node.

[0189] A core network device or a base station and the like may perform division into paging groups using different paging grouping modes, respectively, thereby generating different types of paging groups. In each paging grouping mode, a plurality of paging groups may be generated by division. For example, UEs may be grouped based on service types or their transmission rates and the like.

[0190] A second PEI type, at least corresponding to a first type of paging grouping mode, may be used to at least indicate whether to wake up the UE in a paging group corresponding to the first type of paging grouping mode.

[0191] A second type of PEI, at least corresponding to a second type of paging grouping mode, may be used to at least indicate whether to wake up the UE in a paging group corresponding to the second type of paging grouping mode.

[0192] According to an embodiment, the first type of paging grouping mode includes a paging grouping mode in which the paging group is determined by a core network device; and the second type of paging grouping mode includes a paging grouping mode in which the paging group is determined based on a UE identifier.

[0193] The first type of paging grouping mode may be a mode in which the core network device divides paging groups based on UE attributes. In this case, the UE attributes may include, but are not limited to, a UE service type, a number of UE transmission sessions, a UE bandwidth, and the like.

[0194] The second type of paging grouping mode may be a mode in which a network access device, such as a base station, divides paging groups based on UE identification information (UE_ID). For example, the base station may use the above expression (1) to determine the paging group of the UE.

[0195] Each bit of the plurality of bits of the second type of PEI may be used to indicate whether one or more paging groups are activated during a predetermined PO. In this case, the paging groups may include paging groups divided by a first type of paging grouping mode or paging groups divided by a second type of paging grouping mode.

[0196] For example, the second type of PEI may comprise 8 bits, wherein each of the 4 bits indicates each of the 4 paging groups divided by the first type of paging grouping mode, and each of the other 4 bits indicates each of the 4 paging groups divided by the second type of paging grouping mode.

[0197] The second type of PEI corresponding to at least the first type of grouping paging mode may include a second type of PEI corresponding only to the first type of grouping paging mode, or may include a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode.

[0198] The second type of PEI corresponding to at least the second type of grouping paging mode may include a second type of PEI corresponding only to the second type of grouping paging mode, and may also include a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode.

[0199] Using capability indication information that indicates whether the UE supports an early paging indication (PEI) corresponding to different types of paging groups, the base station can determine the supported capabilities of the UE for the PEI corresponding to different paging groups, then transmit the PEI corresponding to the type of paging group for the UE in order to wake up the UE for the purpose of monitoring the PO, which eliminates a situation in which the UE is woken up during a PO for other types of paging groups, and at the same time reduces excessive power consumption of the UE caused by waking up the UE in an incorrect PO.

[0200] According to an embodiment, receiving the first capability indication information includes at least one of the following operations: transmitting, to a base station, first capability indication information indicating whether the UE supports a first PEI type; transmitting, to the base station, first capability indication information indicating whether the UE supports a second PEI type corresponding to at least a second type of grouping paging mode; or transmitting, to a core network device, first capability indication information indicating whether the UE supports a second PEI type corresponding to at least a first type of grouping paging mode.

[0201] The UE may determine whether the UE itself supports the first PEI type. Thus, the UE may transmit capability indication information to the base station indicating whether the UE supports the first PEI type.

[0202] The UE may determine whether the UE itself supports a second type of PEI corresponding to at least a second type of grouping paging mode. For example, the UE may determine whether the UE itself supports the grouping paging mode based on the UE_ID. In this way, the UE may transmit capability indication information to the base station indicating whether the UE supports a second type of PEI corresponding to at least a second type of grouping paging mode.

[0203] For example, the base station determines based on capability indication information reported from the UE that the terminal supports a second type of PEI corresponding to at least a second type of grouping paging mode. The base station determines based on capability indication information reported from the UE that the terminal does not support the second type of PEI corresponding to at least the second type of grouping paging mode. Alternatively, the base station does not receive the capability indication information, wherein it is determined that the terminal does not support the second type of PEI corresponding to at least the second type of grouping paging mode.

[0204] According to an embodiment, the capability indication information may be carried in UE capability information (UECapabilityInformation) or in an uplink auxiliary message. The UE capability information indicates at least a frequency supported by the UE.

[0205] If the UE exits the RRC connected state, the UE may carry capability indication information in an uplink auxiliary message.

[0206] The UE may inform the core network device about the support of the second type of PEI, at least corresponding to the first type of grouping paging mode, using NAS signaling. Thus, the capability indication information transmitted to the base station by the core network device may also indicate whether the UE supports the second type of PEI, at least corresponding to the first type of grouping paging mode.

[0207] For example, whether the terminal supports the second type of PEI corresponding to at least the first type of grouping paging mode is determined by the base station through explicit indication based on capability indication information transmitted by the core network device.

[0208] As shown in Fig. 7, according to an embodiment, a method for transmitting information is proposed. The method also includes step 701.

[0209] In step 701, second capability indication information is received from the base station. The second capability indication information is configured for the UE to determine the PEI that the base station is capable of transmitting.

[0210] In this case, step 701 may be implemented separately or in conjunction with step 601.

[0211] The capability indication information may indicate a PEI that the base station is capable of transmitting. The UE may determine whether to monitor the PEI transmitted by the base station based on the PEI that the base station is capable of transmitting and the PEI supported by the UE itself.

[0212] For example, if the UE can support the PEI transmitted by the base station, the UE can monitor the PEI. If the UE cannot support the PEI transmitted by the base station, the UE cannot monitor the PEI transmitted by the base station.

[0213] If the UE does not monitor the PEI of the base station, the UE may wake up at each PO and monitor the paging message.

[0214] The capability indication information may be carried by common signaling. For example, the capability indication information may be carried in a system message and broadcast to the UE.

[0215] The capability indication information may be carried using dedicated signaling. For example, the capability indication information may be carried in an RRC message and transmitted to the UE.

[0216] According to an embodiment, the third capability indication information is configured for the UE to determine at least one of the following elements that the base station is capable of transmitting: a first PEI type; a second PEI type corresponding to a first type of grouping paging mode, wherein the first PEI is different from the second PEI type; a second PEI type corresponding to a second type of grouping paging mode; or a second PEI type corresponding to the first type of grouping paging mode and the second type of grouping paging mode.

[0217] As shown in Fig. 8, according to an embodiment, a method for transmitting information is proposed. The method includes step 801.

[0218] In step 801, it is determined whether the PEI transmitted by the base station should be controlled in accordance with the PEI supported by the UE.

[0219] In this case, step 801 may be implemented separately or in conjunction with step 701.

[0220] The UE may determine whether to monitor the PEI transmitted by the base station according to its capabilities. If the PEI is not monitored, a solution for monitoring the paging message at each PO used in the state of the art may be applied.

[0221] According to an embodiment, determining whether to monitor a PEI transmitted by a base station according to a PEI supported by a UE includes performing at least one of the following operations: if it is determined that the UE supports a PEI that the base station is capable of transmitting, monitoring the PEI transmitted by the base station; or if it is determined that the UE does not support a PEI that the base station is capable of transmitting, not monitoring the PEI transmitted by the base station.

[0222] If the UE supports the PEI transmitted by the base station, the UE can monitor the PEI and can wake up during a PO based on the PEI indication, thereby eliminating a situation in which the UE goes into an awake mode at every PO and saving the power consumption of the UE.

[0223] If the UE does not support the PEI transmitted by the base station, the UE uses a method adopted in the state of the art to activate and monitor the paging message at each PO, which eliminates the situation in which paging messages are lost.

[0224] According to an embodiment, if it is determined that the UE supports a PEI that the base station is capable of transmitting, monitoring the PEI transmitted by the base station includes performing at least one of the following operations: if it is determined that the base station is capable of transmitting a first type of PEI and the UE supports the first type of PEI, monitoring the PEI transmitted by the base station; or if it is determined that the base station is capable of transmitting a second type of PEI and the UE supports the second type of PEI, monitoring the PEI transmitted by the base station.

[0225] For example, if a base station is capable of transmitting a first PEI type, a UE supporting the first PEI type may monitor the PEI and monitor a paging message based on the PEI indication.

[0226] For example, if the base station is capable of transmitting the first type of PEI, then the UE that does not support the first type of PEI cannot monitor the PEI and returns to performing the standard paging method and wakes up at each PO to monitor the paging message.

[0227] For example, if a base station is capable of transmitting a second type of PEI, a UE supporting the second type of PEI may monitor the PEI and monitor a paging message based on the PEI indication.

[0228] For example, if the base station is capable of transmitting the second type of PEI, then the UE that does not support the second type of PEI cannot monitor the PEI and monitor the paging message and returns to performing the standard paging method and wakes up at each PO to monitor the paging message.

[0229] According to an embodiment, the UE determines whether to transition to the active mode at PO based on the grouping information of the first type of grouping paging mode and/or the grouping information of the second type of grouping paging mode of the UE itself and the PEI indication.

[0230] For example, the PEI may at least indicate a paging group for a first type of paging grouping mode that needs to be activated, and the UE may determine whether to activate its own paging group for the first type of paging grouping mode that needs to be activated.

[0231] Alternatively, the PEI may at least indicate a paging group for the second type of grouped paging mode that needs to be activated, and the UE may determine whether to activate its own paging group for the second type of grouped paging mode that needs to be activated.

[0232] According to an embodiment, if the base station is capable of transmitting a first type of PEI and the UE supports the first type of PEI, monitoring the PEI transmitted by the base station includes at least one of the following operations: if the base station is capable of transmitting the first type of PEI and the UE supports the first type of PEI and the second type of PEI, monitoring the PEI transmitted by the base station; or if the base station is capable of transmitting the first type of PEI and the UE supports both the second type of PEI, monitoring the PEI transmitted by the base station.

[0233] The capability indication information may indicate whether the UE supports early paging indication (PEI) and PEI corresponding to different paging grouping modes, and the like through an explicit indication method.

[0234] The capability indication information indicating the capabilities of the UE indicates that the UE supports the first PEI type and the second PEI type. Then, if the base station is capable of transmitting the first PEI type, the UE can monitor the PEI transmitted by the base station.

[0235] The capability indication information indicating the capabilities of the UE indicates that the UE supports the second type of PEI, and the capability indication information may at the same time implicitly indicate that the UE supports the first type of PEI. In this case, if the base station supports the first type of PEI, the UE can monitor the PEI transmitted by the base station.

[0236] According to an embodiment, if the base station is capable of transmitting a second type of PEI and the UE supports the second type of PEI, monitoring the PEI transmitted by the base station includes at least one of the following operations: if the base station is capable of transmitting a second type of PEI corresponding to at least a first type of grouping paging mode and the UE supports a second type of PEI corresponding to at least the first type of grouping paging mode, monitoring the PEI transmitted by the base station; or if the base station is capable of transmitting a second type of PEI corresponding to at least a second type of grouping paging mode and the UE supports a second type of PEI corresponding to at least the second type of grouping paging mode, monitoring the PEI transmitted by the base station.

[0237] For example, if the base station is capable of transmitting a second type of PEI corresponding to a first type of grouping paging mode, then a UE supporting the second type of PEI corresponding to the first type of grouping paging mode may monitor the PEI and monitor a paging message based on the PEI indication.

[0238] For example, if the base station is capable of transmitting a second type of PEI corresponding to a first type of grouping paging mode, then a UE that does not support the second type of PEI corresponding to the first type of grouping paging mode cannot monitor the PEI, returns to the standard paging mode, and wakes up at each PO to monitor the paging message.

[0239] For example, if the base station is capable of transmitting a second type of PEI corresponding to a second type of grouping paging mode, then a UE supporting the second type of PEI corresponding to the second type of grouping paging mode may monitor the PEI and monitor a paging message based on the PEI indication.

[0240] For example, if the base station is capable of transmitting a second type of PEI corresponding to a second type of grouping paging mode, then a UE that does not support the second type of PEI corresponding to the second type of grouping paging mode cannot monitor the PEI, returns to the standard paging mode, and wakes up at each PO to monitor the paging message.

[0241] For example, the base station is capable of transmitting a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode. If the UE supports the second type of PEI corresponding to at least the first type of grouping paging mode or the second type of PEI corresponding to at least the second type of grouping paging mode, then the UE can monitor the PEI and monitor the paging message based on the PEI indication.

[0242] For example, the base station is capable of transmitting a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode. If the UE does not support either the second type of PEI corresponding to at least the first type of grouping paging mode or the second type of PEI corresponding to at least the second type of grouping paging mode, then the UE cannot monitor the PEI and monitor the paging message based on the PEI indication, returns to the standard paging mode, and wakes up at each PO to monitor the paging message.

[0243] According to an embodiment, if the base station is capable of transmitting a second type of PEI at least corresponding to a first type of grouping paging mode, and the UE supports the second type of PEI at least corresponding to the first type of grouping paging mode, monitoring the PEI transmitted by the base station includes at least one of the following operations: if the base station is capable of transmitting a second type of PEI at least corresponding to a first type of grouping paging mode, and the UE contains grouping information of the first type of grouping paging mode, monitoring the PEI transmitted by the base station.

[0244] For example, if a base station is capable of transmitting a second type of PEI corresponding to a first type of grouping paging mode, then a UE supporting the second type of PEI corresponding to the first type of grouping paging mode may monitor the PEI transmitted by the base station only if the UE is configured using grouping information of the first type of grouping paging mode, otherwise the UE does not monitor the PEI.

[0245] For example, if a base station is capable of transmitting a second type of PEI corresponding to both a first type of grouping paging mode and a second type of grouping paging mode, a UE that supports only the second type of PEI corresponding to the first type of grouping paging mode may monitor the PEI transmitted by the base station only if the UE is configured using the grouping information of the first type of grouping paging mode, otherwise the UE does not monitor the PEI.

[0246] For example, a base station is capable of transmitting a second type of PEI corresponding to both a first type of grouping paging mode and a second type of grouping paging mode, and supports a second type of PEI corresponding to at least the first type of grouping paging mode and a second type of PEI corresponding to at least the second type of grouping paging mode, the UE can monitor the PEI transmitted by the base station and use the grouping information of the first type of grouping paging mode of the UE as well as the grouping information of the second type of grouping paging mode for monitoring/detection and determine whether to activate a group corresponding to the grouping information of the first type of grouping paging mode or a group corresponding to the grouping information of the second type of grouping paging mode at a PO. In this case, the grouping information of the first type of the UE paging grouping mode may be a subgroup ID assigned by the core network device, and the grouping information of the first type of the UE paging grouping mode may be a subgroup ID determined based on the UE_ID.

[0247] As shown in Fig. 9, according to an exemplary embodiment, a method for transmitting information is proposed that can be performed by a UE in a cellular mobile communication system. The method includes step 901.

[0248] In step 901, first capability indication information is received. The first capability indication information indicates whether the UE supports early paging indication (PEI).

[0249] The PEI may be used to instruct the UE to transition to the active state and monitor the paging message for a predetermined PO. In this case, the predetermined PO may include one or more POs after the PEI. Determining whether the PEI is supported, without being limited to the above operation, may include determining whether the wake-up is supported for a predetermined PO based on the PEI indication.

[0250] A PEI may be used to wake up all UEs, and may also be used to wake up UEs in a predetermined range (e.g., a predetermined group, a predetermined type, and the like). A PEI may contain different indication information for UEs in different groups and be used to wake up UEs in different groups. Determining whether a PEI is supported, without being limited to the above operation, may include determining whether a PEI is supported for waking up all UEs, and/or whether a PEI is supported for waking up UEs within a predetermined range.

[0251] In addition to carrying paging information, PEI may also be subsequently extended to carry other information.

[0252] The capability indication information may be reported by a base station to a core network device or transmitted from a UE to a core network device. The UE may also carry the capability indication information in NAS signaling and the like.

[0253] After receiving the capability indication information, the core network device may determine whether the UE supports the early paging indication (PEI). If the UE supports the PEI, the core network device uses the PEI supported by the UE to wake up the UE for the purpose of PO monitoring. This eliminates the situation in which the core network device cannot determine whether the UE supports the early paging indication (PEI) and transmits the PEI to a UE that does not support the PEI or does not transmit the PEI to a UE that supports the PEI. Transmitting the PEI to a UE that does not support the PEI may increase the workload of the core network device. If the PEI is not transmitted to a UE that supports the PEI, then since the UE cannot receive the PEI, it is necessary to frequently wake up the equipment for PO monitoring, resulting in increased power consumption of the UE.

[0254] Thus, the capability indication information indicates whether the UE supports early paging indication (PEI). The core network device can determine the PEI capability of the UE, which reduces the level of erroneous determination of the UE capability caused by the core network device not being aware of the PEI capability of the UE, and improves the accuracy of the core network device's assessment of the PEI capability of the UE.

[0255] According to an embodiment, the first capability indication information indicates whether the UE supports a first PEI type; and/or whether the UE supports a second PEI type, wherein the first PEI type is different from the second PEI type.

[0256] The first type of PEI may contain 1 bit to indicate whether the UE should be woken up, i.e. this PEI does not carry paging group information.

[0257] The first type of PEI can also be extended and used for purposes other than paging.

[0258] In general, the UE supports the first type of PEI, that is, the terminal has the ability to monitor the PEI signal, and the PEI signal can carry paging information and can also be used to carry other information.

[0259] The second type of PEI may contain a plurality of bits to indicate whether the UE should activate, i.e., the PEI grouped for paging.

[0260] The second type of PEI may be a subset of the first type of PEI.

[0261] According to an embodiment, the first type of PEI is a common PEI or a non-grouped PEI that can be used to wake up all UEs that are required to monitor the same PO, or all UEs in a group.

[0262] According to an embodiment, the second type of PEI is a paging group PEI, which may be used to wake up all UEs monitoring the same PO within the corresponding paging group according to the paging group.

[0263] If the PEI contains 1 bit, i.e. the PEI is the first type of PEI, then the PEI can be used to wake up all UEs that receive the PEI. That is, the first type of PEI does not distinguish the paging group of UEs.

[0264] If the PEI contains a plurality of bits, i.e. the PEI is a second type of PEI, then each of the plurality of bits can be used to activate one or more UEs in a paging group. That is, the paging group of UEs is distinguished using the second type of PEI.

[0265] For example, the PEI may contain POnumPerPEI segments, which may be designated as a subgroupsNumPerPO field. Each of the segments may correspond to one PO. Each of the segments contains subgroupsNumPerPO bits, each of which carries a paging indication. The paging indication is used to indicate whether to perform paging for one or more paging groups in the corresponding PO.

[0266] PEI is the first type of PEI, and the subgroupsNumPerPO field contains 1 paging indication bit, which is used to wake up all UEs receiving the PEI to monitor the paging message during the PO. For example, if the paging indication bit is "1", all UEs receiving the PEI are woken up to monitor the paging message during the PO period. If the paging indication bit is "0", this instructs the UE to remain in the sleep/inactive state during the PO period, for example, to support the RRC idle state or the RRC dormant state.

[0267] PEI is the second type of PEI and the subgroupsNumPerPO field contains a plurality of bits, each of which may correspond to a paging group. UEs in different paging groups determine whether to enter the active mode during the PO period based on the bit corresponding to their own group. For example, the subgroupsNumPerPO field contains two bits corresponding to two paging groups. If one of the two bits is "1", then the UE in the paging group corresponding to this bit is activated to monitor the paging message during the PO. If the other of the two bits is "0", this indicates that the UE in the paging group corresponding to this bit remains in the inactive state during the PO.

[0268] The capability indication information may be used to indicate whether the UE supports the first PEI type and/or the second PEI type.

[0269] If the capability indication information indicates that the UE supports the first PEI type, the base station may use the first PEI type to wake up the UE for the purpose of monitoring the PO. This eliminates the situation in which the UE needs to wake up at each PO and reduces the power consumption of the UE.

[0270] If the capability indication information indicates that the UE supports the second PEI type, the base station may use the second PEI type to wake up the UE based on the paging group to monitor the PO. This eliminates the situation in which the UE wakes up at the PO if no paging message is transmitted for the paging group to which the UE belongs, and thus reduces the power consumption of the UE.

[0271] Thus, the capability indication information indicates whether the UE supports early paging indication (PEI). The base station may determine the PEI capability of the UE and transmit the PEI supported by the UE to wake up the UE for the purpose of monitoring the PO based on the PEI capability of the UE. If the UE does not need to be woken up, the UE is not woken up for monitoring, and thus, excess power consumption caused by frequent UE wakeup is reduced.

[0272] According to an embodiment, determining whether the UE supports a second type of PEI includes determining whether the UE supports a second type of PEI corresponding to at least a first type of grouping paging mode; and/or whether the UE supports a second type of PEI corresponding to at least a second type of grouping paging mode.

[0273] The first type of paging grouping mode and the second type of paging grouping mode use different methods of dividing into paging groups. The first type of paging grouping mode and the second type of paging grouping mode may also be implemented by different network nodes. The first type of paging grouping mode and the second type of paging grouping mode may also be implemented by one network node.

[0274] A core network device or a base station and the like may perform division into paging groups using different paging grouping modes, respectively, thereby generating different types of paging groups. In each paging grouping mode, a plurality of paging groups may be generated by division. For example, UEs may be grouped based on service types or their transmission rates and the like.

[0275] A second PEI type, at least corresponding to a first type of paging grouping mode, may be used to at least indicate whether the UE should be woken up in a paging group corresponding to the first type of paging grouping mode.

[0276] A second type of PEI, at least corresponding to a second type of grouping paging mode, may be used to at least indicate whether the UE should be woken up in a paging group corresponding to the second type of grouping paging mode.

[0277] According to an embodiment, the first type of paging grouping mode includes a paging grouping mode in which the paging group is determined by a core network device; and the second type of paging grouping mode includes a paging grouping mode in which the paging group is determined based on a UE identifier.

[0278] The first type of paging grouping mode may be a mode in which the core network device divides paging groups based on UE attributes. In this case, the UE attributes may include, but are not limited to, a UE service type, a number of UE transmission sessions, a UE bandwidth, and the like.

[0279] The second type of paging grouping mode may be a mode in which the base station divides paging groups based on UE identification information (UE_ID). For example, the base station may use the above expression (1) to determine the paging group of the UE.

[0280] Each bit of the plurality of bits of the second type of PEI may be used to indicate whether one or more paging groups are activated during a predetermined PO. In this case, the paging groups may include paging groups divided by a first type of paging grouping mode or paging groups divided by a second type of paging grouping mode.

[0281] For example, the second type of PEI may comprise 8 bits, wherein each of the 4 bits indicates each of the 4 paging groups divided by the first type of paging grouping mode, and each of the other 4 bits indicates each of the 4 paging groups divided by the second type of paging grouping mode.

[0282] The second type of PEI corresponding at least to the first type of grouping paging mode may include a second type of PEI corresponding only to the first type of grouping paging mode, or may include a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode.

[0283] The second type of PEI corresponding to at least the second type of grouping paging mode may include a second type of PEI corresponding only to the second type of grouping paging mode, and may also include a second type of PEI corresponding to both the first type of grouping paging mode and the second type of grouping paging mode.

[0284] Using capability indication information that indicates whether the UE supports an early paging indication (PEI) corresponding to different types of paging groups, the base station can determine the supported capabilities of the UE for the PEI corresponding to different paging groups, then transmit the PEI corresponding to the type of paging group for the UE in order to wake up the UE for the purpose of monitoring the PO, which eliminates a situation in which the UE is woken up during a PO for other types of paging groups, and at the same time reduces excessive power consumption of the UE caused by waking up the UE in an incorrect PO.

[0285] According to an embodiment, receiving the first capability indication information includes at least one of the following operations: receiving from the UE the first capability indication information indicating whether the UE supports a second PEI type at least corresponding to a first type of grouped paging mode; receiving from a base station the first capability indication information indicating whether the UE supports the first PEI type; or receiving from the base station the first capability indication information indicating whether the UE supports a second PE type at least corresponding to a second type of grouped paging mode.

[0286] Capability indication information may be transmitted from the UE to the core network device. For example, the UE may carry capability indication information in NAS signaling.

[0287] For example, the UE may indicate to the core network device the support of the second type of PEI, at least corresponding to the first type of grouped paging mode, using signaling not associated with the NAS access layer. Thus, the capability indication information transmitted to the base station by the core network device may also indicate whether the UE supports the second type of PEI, at least corresponding to the first type of grouped paging mode.

[0288] For example, whether the terminal supports the second type of PEI corresponding to at least the first type of grouping paging mode is determined by the base station through an explicit indication based on capability indication information transmitted by the core network device.

[0289] After the base station receives the capability indication information reported by the UE, the base station may report the capabilities of the UE to the core network device. The capability indication information reported by the UE may indicate whether the UE supports a first PEI type and/or whether the UE supports a second PEI type corresponding to at least a second type of grouping paging mode. Thus, the capability indication information transmitted by the base station may also indicate whether the UE supports the first PEI type and/or whether the UE supports a second PEI type corresponding to at least a second type of grouping paging mode.

[0290] For example, the UE reports capabilities to the base station for the UE supporting PEI using capability indication information, and the base station notifies the core network device using the capability indication information. The capability indication information may indicate whether the UE supports a first type of PEI, and/or whether the UE supports a second type of PEI corresponding to at least a second type of grouping paging mode. Information on whether the UE supports the second type of PEI corresponding to at least a second type of grouping paging mode is transmitted by the terminal to the core network device using NAS signaling, and at this time, the base station does not need to transmit a report.

[0291] For example, capability indication information may be carried in the following messages: UE CAPABILITY INFO INDICATION or RRC INACTIVE TRANSITION REPORT.

[0292] As shown in Fig. 10, according to an embodiment, a method for transmitting information is proposed. The method also includes at least one of the following steps: 1001a-1001b.

[0293] In step 1001a, second UE capability indication information indicating whether the UE supports the first PEI type is transmitted to the base station.

[0294] In step 1001b, second UE capability indication information indicating whether the UE supports the second PEI type is transmitted to the base station.

[0295] In this case, step 1001a and/or step 1001b may be implemented separately or in combination with step 901.

[0296] The capability indication information may also be transmitted to the base station by the core network device, and the capability indication information indicates whether the UE supports a first PEI type and whether the UE supports a second PEI type corresponding to at least the second type of grouped paging mode.

[0297] The UE may inform the core network device about the support of the second type of PEI, at least corresponding to the first type of grouping paging mode, using NAS signaling. Thus, the capability indication information transmitted to the base station by the core network device may also indicate whether the UE supports the second type of PEI, at least corresponding to the first type of grouping paging mode.

[0298] For example, whether the terminal supports the second type of PEI corresponding to at least the first type of grouping paging mode is determined by the base station through an explicit indication based on capability indication information transmitted by the core network device.

[0299] UE capabilities may also be communicated between base stations. A base station may transmit capability indication information to an equivalent base station.

[0300] A specific example is given below in combination with any of the above-described embodiments.

[0301] 1. There is a mode in which the base station is guaranteed to receive information about the UE's ability to support PEI.

[0302] 2. In mode 1, the base station obtains information from the capability indication information reported from the UE whether the UE supports paging grouping schemes.

[0303] a) the information is used by the network as a reference to a paging group;

[0304] b) As an embodiment, the capability to support the paging grouping scheme may be the capability of the UE to report support of the UE_ID paging grouping scheme. In this case, the capability to support the UE_ID paging grouping scheme means that the UE (i.e., the second type of terminal capabilities) supports the second type of PEI corresponding to the above-mentioned second type of paging grouping mode.

[0305] c) As an embodiment, the capability to support the paging grouping scheme may be the capability of the terminal to signal its support of the PEI scheme. In this case, the capability to support the PEI scheme means that the UE (i.e., the first type of terminal capabilities) supports the first type of PEI specified above. If the first type of PEI is used to carry ungrouped PEI, the capability to support ungrouped PEI is included.

[0306] The format of the signaling diagram is as follows:

[0307] Capability1-PEI ENUMERATED{true} OPTIONAL, and

[0308] Capability2-UEID-subgrouping ENUMERATED{true} OPTIONAL.

[0309] In addition, there are many ways to classify UE capabilities:

[0310] 1) Method 1:

[0311] there is no correlation between multiple UE capabilities.

[0312] The UE reporting capability 1 supports PEI monitoring;

[0313] The UE reporting capability 2 supports PEI group paging control;

[0314] That is, information about the two possibilities is communicated independently.

[0315] 2) Method 2:

[0316] Support of capability 2 implicitly indicates support of the capability, i.e., capability 2 is a subset of capability 1. The UE may also indicate support of capability 2 based on the truth value of the reported capability 1. In this case, both types of UE capabilities may collectively refer to a UE supporting the PEI capability.

[0317] The UE may only report support for capability 1, implicitly indicating that capability 2 is not supported.

[0318] The UE may simultaneously report support for both capability 1 and capability 2; that is, both flags are true in the message.

[0319] The UE may simultaneously report support of capability 1 without supporting capability 2. Support of only capability 1 is indicated by the absence of a flag in the message, i.e., the absence of the flag bit is used to implicitly indicate that the UE does not support capability 2.

[0320] The UE may only report support for capability 2, which implies that the UE also supports capability 1.

[0321] 3) Method 3:

[0322] The UE informs the base station only of the capability (i.e. capability 2) to support the UE_ID paging grouping scheme.

[0323] The base station obtains information from the core network device that the UE supports the core network paging grouping scheme, that is, obtains information from the core network device whether the UE supports capability 3. The base station combines two approaches to obtain the capability information of the UE. In this case, supporting the core network paging grouping scheme means that the UE supports the above-mentioned second type of PEI corresponding to the first type of paging grouping mode.

[0324] The base station obtains information that the UE supports the UE_ID paging grouping scheme (that is, capability 2) or the core network paging grouping scheme (that is, capability 3), that is, information that at least one of these schemes is supported, in addition, PEI is supported (that is, capability 1 of the UE is supported). At the same time, the capability of supporting PEI is implicitly indicated by the UE supporting the UE_ID paging grouping scheme (that is, capability 2) or the core network paging grouping scheme (that is, capability 3). That is, if the UE_ID paging grouping scheme or the core network paging grouping scheme is supported, this means that the UE supports PEI.

[0325] The base station receives information that the UE does not support the UE_ID paging grouping scheme (i.e., capability 2) and the core network paging grouping scheme (i.e., capability 3), that is, information that both of these schemes are not supported. In this case, the UE does not support PEI, namely, capability 1 of the UE is not supported.

[0326] For ease of understanding, whether the UE supports the early paging indication (PEI) is indicated by whether the UE supports the paging group scheme, since in R17, paging grouping information is transmitted only using PEI. Currently, PEI is mainly used to carry paging grouping information.

[0327] For example, the base station obtains information that the UE supports the UE_ID paging grouping scheme through a capability indication information report received from the UE that carries the support information.

[0328] For example, the base station obtains information that the UE does not support the UE_ID paging grouping scheme based on a capability indication information report received from the UE that does not carry support information or as a result of a failure to receive the reported indication.

[0329] The base station may obtain information about the capability of the UE to support the core network paging grouping scheme (i.e., capability 3) by obtaining a subgroup ID from the core network device. The core network device assigns a subgroup ID to the UE, and at the same time it is determined that the UE must have the capability to support the core network paging grouping scheme. This indication is implicit.

[0330] The base station may obtain information about the capability of the UE to support the core network paging grouping scheme (i.e., capability 3) by receiving an explicit indication from the core network device whether support is provided. That is, an explicit indication bit is used to inform about the capability of support.

[0331] 3. The UE informs the base station of its ability to provide information

[0332] 1) Providing information based on the existing capability of the UE;

[0333] 2) Providing information using Uplink Assistant Information (UAI).

[0334] As an embodiment, the UE may report assistance information if it is expected to leave the connected state, and the reference paging group assistance information is only useful if the UE leaves the connected state.

[0335] 4. The UE capability to provide information may be transmitted between the core network device and the base station.

[0336] a) For example, the capabilities reported by the terminal include capability 1 and capability 2;

[0337] b) As an embodiment, the UE capability is communicated to the base station and the base station notifies the core network device (option 1 or option 2) using a UE CAPABILITY INFO INDICATION message; option 3 is communicated by the UE to the core network device using the NAS and thus no direct transmission of the message to the base station is required.

[0338] The UE capability may also be communicated to the base station using the RRC INACTIVE TRANSITION REPORT message.

[0339] c) As an embodiment, the core network device transmits the UE capability to the base station in a paging message

[0340] Explicit method: The paging message also carries information about the capabilities of the UE (capability 1 and/or capability 2, or capability 3), wherein capability 3 is transmitted by the UE to the core network device via the NAS.

[0341] Option 3 may be specified either explicitly or implicitly.

[0342] An implicit indication is that the paging message carries paging grouping information assigned by the core network device and indicating that the UE has capability 3.

[0343] d) As an embodiment, the core network device communicates the UE capability to the base station using the following messages:

[0344] INITIAL CONTEXT SETUP REQUEST;

[0345] UE CONTEXT MODIFICATION REQUEST

[0346] HANDOVER REQUEST or

[0347] PATH SWITCH REQUEST ACKNOWLEDGE.

[0348] 5. In accordance with paragraph 1 above, the capabilities of the UE are capability 1 and/or capability 2, and information on whether the UE supports the core network device paging grouping scheme (i.e., capability 3) may be transmitted by the base stations.

[0349] Scenario 1, when a handover occurs, the base station obtains the UE capability information from the Handover Request message.

[0350] Scenario 2, if the UE in the idle state performs cell reselection, the base station obtains the UE capability information from the anchor base station.

[0351] a) As an embodiment, the UE context response may convey the UE capability.

[0352] b) As an embodiment, the radio access network paging (RAN Paging) message carries UE capability indication information.

[0353] The target base station (i.e., the equivalent base station) may directly obtain capability 1.

[0354] The target base station may directly obtain capability 2.

[0355] The target base station may directly obtain capability 3.

[0356] The target base station may directly obtain information about support of capability 2 or capability 3, which means support of capability 1.

[0357] The target base station may directly receive information that capability 2 is not supported and that capability 3 is not supported, from which it can be concluded that capability 1 is not supported.

[0358] The core network device subgroup ID implicitly indicates that the UE supports capability 3.

[0359] 6. The UE and the core network device determine the subsequent actions based on the capability of the UE and the capability of supporting the paging scheme of the base station:

[0360] a) The UE is notified of the ability to support the base station paging scheme via common or dedicated signaling;

[0361] b) A UE having a PEI support capability controls the PEI according to a capability of a base station or controls the PEI/paging message according to a capability of a base station and the UE's own capability; wherein there are a UE with capability 1, a UE with capability 2, a UE with capability 3, and a UE with both capability 2 and capability 3 in the network.

[0362] The capabilities of a base station are divided into the transmission of a grouped PEI and the transmission of an ungrouped PEI, that is, into a first type of base station capability and a second type of base station capability.

[0363] Case 1:

[0364] if the base station transmits ungrouped PEI, then the UE supporting capability 1, the UE supporting capability 2, the UE supporting capability 3, and the UE supporting both capability 2 and capability 3 are required to monitor and are in the active state;

[0365] if only the UE supporting capability 1 supports the PEI type and can use the PEI type to control the paging message (i.e. the UE is woken up by means of the PEI type);

[0366] In an alternative embodiment, a UE supporting capability 2 and/or capability 3 supports the PEI type and may use the PEI type to control the paging message (i.e., the UE is woken up using the PEI type).

[0367] Monitoring of a paging message using PEI is monitoring of a subsequent PO corresponding to the PEI indication and monitoring of a paging message not corresponding to the PEI. The subsequent PO is directly monitored without further indication of the PEI, i.e., the PO is directly monitored, which is the standard way of monitoring paging.

[0368] A UE supporting capability 1 information provision supports the PEI type and at the same time uses the PEI to control the paging message (i.e., the UE is woken up by the PEI).

[0369] In an alternative embodiment, a UE supporting capability 2/3 based on support for capability 1 supports the PEI type and may also use the PEI to control the paging message (i.e., the UE is woken up by this PEI).

[0370] A UE that supports capability 2 or capability 3 (meaning that the UE also supports capability 1) uses the PEI to control the paging message (i.e., the UE is woken up by the PEI).

[0371] If the UE does not support capability 2 and capability 3, it is assumed that the UE supports capability 1, and the UE then returns to the standard paging mode.

[0372] Case 2:

[0373] if the base station transmits a grouped PEI, the capabilities of the base station are divided into transmitting a PEI of a core network group, transmitting a PEI of a UE_ID group, and supporting the transmission of a PEI of a core network group and a PEI of a UE_ID group simultaneously, which are called a second type of base station capability, a third type of base station capability, and a fourth type of base station capability, respectively.

[0374] A UE that supports only capability type 1 is not able to support the PEI type, and at this point in time, the grouped PEI cannot be used to monitor the paging message. That is, the UE can only return to the standard monitoring mode (that is, PEI monitoring is not required).

[0375] The method for determining whether a UE only supports capability 1 may be discussed in various situations:

[0376] 1) Mode 1, only separate message about capability 1 is supported.

[0377] 2) Mode 2, only option 1 is supported as described above.

[0378] 3) Mode 3, UE does not support either capability 2 or capability 3.

[0379] A UE supporting the paging grouping capability (i.e., a UE supporting capability 2 or capability 3) monitors the PEI.

[0380] More specifically, for a base station that supports only the UE_ID grouping mode (the second type of base station capability),

[0381] A UE supporting capability 2 may monitor a paging message using a grouped PEI (regardless of whether the subgroup ID is assigned by the core network device), and there is a need to check whether the group to which the UE belongs is activated;

[0382] A UE that does not support the UE_ID grouping mode (e.g., a UE with capability 3 will not be able to support the PEI type) cannot use the grouped PEI to monitor the paging message at this time, i.e., the UE can only return to the standard monitoring mode (i.e., PEI monitoring is not required).

[0383] More specifically, for a base station that supports only the grouping mode assigned by the Core Network (CN) (the third type of base station capability),

[0384] A UE supporting capability 2 may monitor the paging message using the grouped PEI; and a UE not supporting capability 3 does not monitor the PEI.

[0385] In addition, only for a UE to which a core network device assigns a subgroup ID, there is a need to determine whether the group to which the UE belongs is activated; for a UE to which a core network device does not assign a subgroup ID, there is no need to monitor the PEI because even if such a UE supports capability 3, there is no need to monitor the PEI, which simplifies the process and saves power.

[0386] A UE that supports only capability 2 (that is, a UE that supports only the UE_ID grouping mode but does not support the CN grouping capability) is not able to support the PEI type. At this time, it is not possible to use the grouped PEI to monitor the paging message. That is, the UE can only return to the standard monitoring mode (that is, PEI monitoring is not required).

[0387] Thus, if the UE receives the capability information of the base station and determines that the paging PEI type transmitted by the base station does not match its own capability, the UE does not need to monitor the PEI, which simplifies the process and saves power.

[0388] More specifically, for a base station that supports the grouping mode assigned to CN + the grouping mode of UE_ID (the fourth type of base station capability),

[0389] A UE supporting the UE_ID grouping or CN grouping mode uses the grouped PEI to monitor the paging message; and there is a need to check whether the group to which the UE belongs is active.

[0390] In addition, for a UE to which a core network device assigns a subgroup ID, there is a need to check whether the group to which the UE belongs is active; if the UE to which the core network device does not assign a subgroup ID also supports capability 2, there is a need to monitor the PEI; otherwise, there is no need to monitor the PEI.

[0391] According to an embodiment of the present invention, there is also provided an information transmission device shown in Fig. 11, which is applicable to a base station in a cellular mobile communication system. The device 100 comprises a first receiving module 110.

[0392] The first receiving module 110 is configured to receive first capability indication information. The first capability indication information indicates whether the UE supports an early paging indication (PEI).

[0393] According to an embodiment, the first capability indication information indicates whether the UE supports a first PEI type; and/or whether the UE supports a second PEI type, wherein the first PEI type is different from the second PEI type.

[0394] According to an embodiment, determining whether the UE supports a second type of PEI includes determining whether the UE supports a second type of PEI corresponding to at least a first type of grouping paging mode; and/or whether the UE supports a second type of PEI corresponding to at least a second type of grouping paging mode.

[0395] According to an embodiment, the first type of paging grouping mode includes a paging grouping mode in which the paging group is determined by a core network device; and the second type of paging grouping mode includes a paging grouping mode in which the paging group is determined based on a UE identifier.

[0396] According to an embodiment, the device also comprises a first determining module 120 and/or a second determining module 130.

[0397] The first determining module 120 is configured to determine that the UE supports the first PEI type if the first capability indication information indicates that the UE supports the second PEI type.

[0398] The second determining module 130 is configured to determine that the UE does not support the first PEI type if the first capability indication information indicates that the UE does not support a second PEI type at least corresponding to the first type of grouping paging mode, and the second PEI type at least corresponding to the second type of grouping paging mode indicating that the UE.

[0399] According to an embodiment, the first receiving module 110 is specially configured to perform at least one of the following operations: receiving from the UE first capability indication information indicating whether the UE supports a first PEI type; receiving from the UE first capability indication information indicating whether the UE supports a second PEI type corresponding to at least a second type of grouped paging mode; receiving from the core network device the first capability indication information, or receiving from an equivalent base station the first capability indication information.

[0400] According to an embodiment, the first receiving module 110 is specially configured to perform the following operation: in case of receiving grouping information of a first type of grouping paging mode of the UE from a core network device, determining that the UE supports a second type of PEI at least corresponding to the first type of grouping paging mode.

[0401] According to an embodiment, the device also comprises a first transmitting module configured to perform at least one of the following operations: transmitting, to an equivalent base station, second capability indication information indicating whether the UE supports a first PEI type; transmitting, to an equivalent base station, second capability indication information indicating whether the UE supports a second PEI type; transmitting, to a core network device, second capability indication information indicating whether the UE supports a second PEI type; or transmitting, to a core network device, second capability indication information indicating whether the UE supports a second PEI type corresponding to at least a second type of grouped paging mode.

[0402] According to an embodiment, the device also comprises a second transmitting module 150 configured to transmit third capability indication information to the UE. The third capability indication information is configured for the UE to determine a PEI that the base station is capable of transmitting.

[0403] According to an embodiment, the third capability indication information is configured for the UE to determine at least one of the following elements that the base station is capable of transmitting: a first PEI type; a second PEI type corresponding to a first type of grouping paging mode, wherein the first PEI is different from the second PEI type; a second PEI type corresponding to a second type of grouping paging mode; or a second PEI type corresponding to the first type of grouping paging mode and the second type of grouping paging mode.

[0404] According to an embodiment of the present invention, an information transmission device shown in Fig. 12 is also provided, which is applicable to a UE in a cellular mobile communication system. The device 200 comprises a third transmission module 210.

[0405] The third transmitting module 210 is configured to transmit first capability indication information. The first capability indication information indicates whether the UE supports an early paging indication (PEI).

[0406] According to an embodiment, the first capability indication information indicates whether the UE supports a first PEI type; and/or whether the UE supports a second PEI type, wherein the first PEI type is different from the second PEI type.

[0407] According to an embodiment, determining whether the UE supports a second PEI type includes determining whether the UE supports a second PEI type corresponding to at least a first type of grouping paging mode; and/or whether the UE supports a second PEI type corresponding to at least a second type of grouping paging mode.

[0408] According to an embodiment, the first type of paging grouping mode includes a paging grouping mode in which the paging group is determined by a core network device; and the second type of paging grouping mode includes a paging grouping mode in which the paging group is determined based on a UE identifier.

[0409] According to an embodiment, the third transmitting module is specially configured to perform at least one of the following operations: transmitting, to a base station, first capability indication information indicating whether the UE supports a first PEI type; transmitting, to the base station, first capability indication information indicating whether the UE supports a second PEI type corresponding to at least a second type of grouping paging mode; or transmitting, to a core network device, first capability indication information indicating whether the UE supports a second PEI type corresponding to at least a first type of grouping paging mode.

[0410] According to an embodiment, the device also comprises a second receiving module 220 configured to receive second capability indication information from the base station. The second capability indication information is configured for the UE to determine the PEI that the base station is capable of transmitting.

[0411] According to an embodiment, the second capability indication information is configured for the UE to determine at least one of the following elements that the base station is capable of transmitting: a first type of PEI; a second type of PEI corresponding to a first type of grouping paging mode, wherein the first PEI is different from the second type of PEI; a second type of PEI corresponding to a second type of grouping paging mode; or a second type of PEI corresponding to the first type of grouping paging mode and the second type of grouping paging mode.

[0412] According to an embodiment, the device also comprises a third determining module 230 configured to determine whether to monitor the PEI transmitted by the base station in accordance with the PEI supported by the UE.

[0413] According to an embodiment, the third determining module 230 is specially configured to perform at least one of the following operations: when determining that the UE supports a PEI that the base station is capable of transmitting, determining whether it is necessary to monitor the PEI transmitted by the base station; or when determining that the UE does not support a PEI that the base station is capable of transmitting, determining whether it is not necessary to monitor the PEI transmitted by the base station.

[0414] According to an embodiment, the third determining module 230 is specially configured to perform at least one of the following operations: if it is determined that the base station is capable of transmitting a first type of PEI and the UE supports the first type of PEI, determining whether to monitor the PEI transmitted by the base station; or if it is determined that the base station is capable of transmitting a second type of PEI and the UE supports the second type of PEI, determining whether to monitor the PEI transmitted by the base station.

[0415] According to an embodiment, the third determining module 230 is specially configured to perform at least one of the following operations: if the base station is capable of transmitting the first PEI type, and the UE supports the first PEI type and the second PEI type, determining whether to monitor the PEI transmitted by the base station; or if the base station is capable of transmitting the first PEI type, and the UE supports the second PEI type, determining whether to monitor the PEI transmitted by the base station.

[0416] According to an embodiment, the third module 230 is specially configured to perform at least one of the following operations: if the base station is capable of transmitting a second type of PEI at least corresponding to a first type of grouping paging mode, and the UE supports the second type of PEI at least corresponding to the first type of grouping paging mode, determining whether to monitor the PEI transmitted by the base station, or if the base station is capable of transmitting a second type of PEI at least corresponding to a second type of grouping paging mode, and the UE supports the second type of PEI at least corresponding to the second type of grouping paging mode, determining whether to monitor the PEI transmitted by the base station.

[0417] According to an embodiment, the third determining module 230 is specially configured to perform at least one of the following operations: if the base station is capable of transmitting a second type of PEI corresponding to at least a first type of grouping paging mode, and the UE contains information about the first type of grouping paging mode, determining whether to monitor the PEI transmitted by the base station.

[0418] According to an embodiment of the present invention, an information transmission device shown in Fig. 13 is also provided, which is applicable to a core network device in a cellular mobile communication system. The device 300 comprises a third receiving module 310.

[0419] The third receiving module 310 is configured to receive first capability indication information. The first capability indication information indicates whether the UE supports an early paging indication (PEI).

[0420] According to an embodiment, the first capability indication information indicates whether the UE supports a first PEI type; and/or whether the UE supports a second PEI type, wherein the first PEI type is different from the second PEI type.

[0421] According to an embodiment, determining whether the UE supports a second type of PEI includes determining whether the UE supports a second type of PEI corresponding to at least a first type of grouping paging mode; and/or whether the UE supports a second type of PEI corresponding to at least a second type of grouping paging mode.

[0422] According to an embodiment, the first type of paging grouping mode includes a paging grouping mode in which the paging group is determined by a core network device; and the second type of paging grouping mode includes a paging grouping mode in which the paging group is determined based on a UE identifier.

[0423] According to an embodiment, the third receiving module 310 is configured to perform at least one of the following operations: receiving from the UE first capability indication information indicating whether the UE supports a second PEI type at least corresponding to a first type of grouped paging mode; receiving from a base station first capability indication information indicating whether the UE supports the first PEI type; or receiving from the base station first capability indication information indicating whether the UE supports a second PE type at least corresponding to a second type of grouped paging mode.

[0424] According to an embodiment, the device also comprises a fourth transmitting module 320 configured to perform at least one of the following operations: transmitting to the base station second UE capability indication information indicating whether the UE supports the first PEI type; or transmitting to the base station second UE capability indication information indicating whether the UE supports the second PEI type.

[0425] According to an exemplary embodiment, the first receiving module 110, the first determining module 120, the second determining module 130, the first transmitting module 140, the second transmitting module 150, the third transmitting module 210, the second receiving module 220, the third determining module 230, the third receiving module 310, and the fourth transmitting module 320, and the like, may be implemented using at least one of one or more central processing units (CPU), graphics processing units (GPU), baseband processors (BP), application specific integrated circuits (ASIC), digital signal processors (DSP), programmable logic devices (PLD), complex programmable logic devices (CPLD), field programmable gate arrays (FPGA), general-purpose processors, controllers, microcontrollers (MCU, Micro Controller Unit), microprocessors, or by means of other electronic components configured to perform the method described above.

[0426] Fig. 14 shows a block diagram of an information transmission device 3000 according to an embodiment. For example, the device 3000 may be a mobile phone, a computer, a digital broadcasting user equipment, a message receiving and transmitting device, a game console, a tablet, medical equipment, a fitness device, and a personal information device, and the like.

[0427] Fig. 14 shows that the device 3000 may include one or more of the following components: a processing component 3002, a memory 3004, a power supply component 3006, a multimedia component 3008, an audio signal processing component 3010, an input/output (I/O) interface 3012, a sensor component 3014, and a communication component 3016.

[0428] The processing component 3002 typically controls all operations performed by the device 3000, such as operations related to display, telephone calls, data transmission, video camera operation, and data recording. The processing component 3002 may include one or more processors 3020 configured to execute instructions that perform all or some steps of the method described above. In addition, the processing component 3002 may contain one or more modules that facilitate interaction between the processing component 3002 and other components. For example, the processing component 3002 may include a multimedia module that facilitates interaction between the multimedia component 3008 and the processing component 3002.

[0429] Memory 3004 is configured to store various types of data necessary for the operation of device 3000. Examples of such data include instructions for any applications or methods executed on device 3000, contact data, phone book data, messages, images, video files, and the like. Memory 3004 can be implemented using any type of non-volatile or volatile memory devices, or a combination of such devices, such as static random access memory (SRAM, Stationary Random Access Memory), electrically erasable programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory), programmable read-only memory (PROM, Programmable Read-Only Memory), read-only memory (ROM, Read-Only Memory), magnetic storage device, flash memory, magnetic or optical disk.

[0430] Power source component 3006 provides electrical power to various components of device 3000. Power source component 3006 may include a power management system, one or more power sources, and any other components associated with generating, managing, and distributing electrical power for device 3000.

[0431] The multimedia component 3008 comprises a screen that provides an output interface between the device 3000 and the user. In some embodiments of the present invention, the screen may be a liquid crystal display (LCD) and a touch panel (TP). The screen, implemented as a touch panel, allows receiving input signals from the user. At least one tactile sensor is located on the touch panel, designed to recognize touches, shifts and other gestures. The tactile sensors can not only determine the area of a touch or shift, but also respond to the moment of activation and pressure associated with a touch or shift. In some embodiments of the present invention, the multimedia component 3008 comprises a front video camera and / or a rear video camera. The front video camera and / or the rear video camera can receive external multimedia data when the device 3000 is in an operating mode, for example, in a mode for taking photos or shooting videos. Both the front and rear video camera may be a fixed optical lens system, or the optical lens system may be equipped with focal and optical zooming means.

[0432] The audio signal processing component 3010 is configured to output and/or input an audio signal. For example, the audio signal processing component 3010 comprises a microphone (MIC) configured to receive an external audio signal when in an operating mode, such as in a call, recording, and speech recognition mode. The received audio signal can then be stored in the memory 3004 or transmitted via the communication component 816. In some embodiments, the audio signal processing component 3010 also comprises a speaker that serves to output audio signals.

[0433] The input/output interface 3012 provides an interface between the processing component 3002 and peripheral interface modules such as a keyboard, a mouse wheel, buttons, and the like. These buttons may be, among other things, a return button, a volume adjustment button, a start button, and a lock button.

[0434] The sensor component 3014 comprises at least one sensor configured to evaluate various aspects of the operation of the device 3000. For example, the sensor component 3014 may detect an on/off state of the device 3000, a relative positioning of components such as a display and keyboard of the device 3000, a change in the position of the device 3000 or a component of the device 3000, the presence or absence of user contact with the device 3000, the orientation or acceleration/deceleration of the device 3000, and a change in the temperature of the device 3000. The sensor component 3014 may comprise a contactless sensor that is configured to detect nearby objects without physical contact with them. The sensor component 3014 may also include a light-sensitive element, such as a CMOS (Complementary Metal Oxide Semiconductor) image sensor or a CCD (Charge-Coupled Device) used in imaging applications. In some embodiments, the sensor component 3014 may also include an acceleration sensor, a gyroscope, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0435] The communication component 3016 is configured to conveniently perform wired or wireless communication between the device 3000 and other devices. The device 3000 can access wireless networks using communication standards such as WiFi, 2G or 3G, or a combination of these standards. According to an embodiment, the communication component 3016 receives a broadcast signal from an external broadcast control system or broadcasts corresponding information via a broadcast channel. According to an embodiment, the communication component 3016 also includes a near field communication (NFC) module that allows signals to be transmitted over short distances. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IRDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0436] According to an embodiment, the device 3000 can be implemented using at least one of such components as Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components configured to perform the method described above.

[0437] According to an exemplary embodiment, a computer-readable storage medium containing instructions, such as a memory 3004, is also proposed. The instructions are executed by the processor 3020 of the device 3000 to perform the method described above. For example, the computer-readable medium may be a ROM, random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical storage device, and the like.

[0438] Other embodiments of the present invention will be apparent to those skilled in the art based on the considerations set forth in this description and on practical application of the embodiments of the invention. This description is intended to cover any modifications, uses or adaptations of the embodiments of the present invention that are consistent with its basic principles, including such departures from the embodiments of the present invention as are within the known or usual practice in the art. This description and illustrations are to be considered as examples only, with the understanding that the spirit and scope of the present invention are set forth in the claims below.

[0439] It should be appreciated that the present invention is not limited precisely to the structure described above and illustrated in the drawings, and various modifications and changes can be made without departing from the scope of the present invention. The scope of protection of the present invention is limited only by the appended claims.

Claims (35)

1. A method of transmitting information performed by a base station and including: receiving first capability indication information, wherein the first capability indication information indicates that the user equipment (UE) supports an early paging indication (PEI) and the UE supports a UE identifier (UE_ID) paging grouping scheme, respectively; or the first capability indication information indicates that the UE supports a UE_ID paging grouping scheme with the support of PEI; wherein the method further comprises at least one of the following: transmitting the grouped PEI to the UE, wherein the grouped PEI is used by the UE supporting both the PEI and the UE_ID paging grouping scheme to control the paging message, and the base station only supports the UE_ID paging grouping scheme; transmitting the grouped PEI to the UE, wherein the grouped PEI is used by the UE to which the core network assigns a subgroup ID to control the paging message, and the base station supports only the core network paging grouping scheme; wherein, in response to the base station supporting only the core network paging grouping scheme and transmitting the grouped PEI, the grouped PEI is not controlled by the UE to which the core network does not assign a subgroup ID or by the UE supporting both the PEI and the UE_ID paging grouping scheme; or transmitting a grouped PEI to a UE, wherein the grouped PEI is used by a UE that supports both PEI and a UE_ID paging grouping scheme or a UE to which a core network assigns a subgroup ID for monitoring a paging message, the grouped PEI is also used by a UE to which a core network does not assign a subgroup ID and which supports both PEI and a UE_ID paging grouping scheme for monitoring a paging message, the grouped PEI is not monitored by a UE to which a core network does not assign a subgroup ID and which does not support either PEI or a UE_ID paging grouping scheme, and the base station supports both the core network paging grouping scheme and the UE_ID paging grouping scheme. 2. The method according to claim 1, characterized in that receiving the first capability indication information includes at least one of the following operations: receiving from the UE first capability indication information; or receiving first capability indication information from an equivalent base station. 3. The method according to claim 1, further comprising at least one of: transmitting to an equivalent base station a second capability indication information indicating whether the UE supports the PEI; transmitting to an equivalent base station a second capability indication information indicating whether the UE supports the UE_ID paging grouping scheme; transmitting to the core network second capability indication information indicating whether the UE supports PEI; or transmitting to the core network second capability indication information indicating whether the UE supports the UE_ID paging grouping scheme. 4. The method according to any of paragraphs 1-3, also including: transmitting to the UE third capability indication information, wherein the third capability indication information is configured for the UE to determine a PEI that the base station is capable of transmitting. 5. The method according to claim 4, characterized in that the third capability indication information is configured for the UE to determine at least one of the following elements that the base station is capable of transmitting: ungrouped PEI or grouped PEI. 6. A method for transmitting information performed by user equipment (UE) and comprising: transmitting first capability indication information, wherein the first capability indication information indicates that the UE supports an early paging indication (PEI) and the UE supports a UE identifier (UE_ID) paging grouping scheme, respectively; or the first capability indication information indicates that the UE supports a UE_ID paging grouping scheme with the support of PEI; wherein the method further comprises at least one of the following: in response to the base station supporting only the UE identifier (UE_ID) paging grouping scheme and transmitting the grouped PEI, controlling the user equipment that supports both the PEI and the UE_ID paging grouping scheme to send paging messages with the grouped PEI; in response to the base station supporting only the core network paging grouping scheme and transmitting the grouped PEI, monitoring by the user equipment to which the core network assigns a subgroup ID, paging messages with the grouped PEI, wherein the grouped PEI is not monitored by the UE to which the core network does not assign a subgroup ID or by the UE supporting both the PEI and the UE_ID paging grouping scheme; or in response to the base station supporting both the core network paging grouping scheme and the UE_ID paging grouping scheme and transmitting the grouped PEI, the user equipment that supports both the PEI and the UE_ID paging grouping scheme or the user equipment to which the core network assigns a subgroup ID, monitoring paging messages with the grouped PEI, and the user equipment to which the core network does not assign a subgroup ID and which supports both the PEI and the UE_ID paging grouping scheme, monitoring paging messages with the grouped PEI, wherein the grouped PEI is not monitored by the UE to which the core network does not assign a subgroup ID and which does not support either the PEI or the UE_ID paging grouping scheme. 7. The method according to claim 6, characterized in that the first capability indication information also indicates whether the UE supports the core network paging grouping scheme. 8. The method according to claim 7, characterized in that the transmission of the first capability indication information includes at least one of the following operations: transmitting to the base station first capability indication information indicating whether the user equipment supports PEI; transmitting to the base station first capability indication information indicating whether the UE supports the UE_ID paging grouping scheme; or transmitting to the core network first capability indication information indicating whether the UE supports the paging grouping scheme of the core network. 9. The method according to any of paragraphs 6-8, also including: receiving from the base station a third capability indication information, wherein the third capability indication information is configured for the UE to determine a PEI that the base station is capable of transmitting. 10. The method according to claim 9, characterized in that the third capability indication information is configured for the UE to determine at least one of the following elements that the base station is capable of transmitting: ungrouped PEI or grouped PEI. 11. The method according to paragraph 10, further comprising: in response to the base station transmitting an ungrouped PEI, the user equipment supporting the UE_ID paging grouping scheme monitoring the paging message with the ungrouped PEI. 12. A base station including a processor and memory in which an executable program launched by the processor is stored, during the execution of which the processor implements the steps of the method for transmitting information in accordance with any of paragraphs 1-5. 13. User equipment, including a processor and memory in which an executable program launched by the processor is stored, during the execution of which the processor implements the steps of the method for transmitting information in accordance with any of paragraphs 6-11.