Information transmission method, apparatus, communication device and storage medium

Abstract

An embodiment of the present invention relates to an information transmission method, an apparatus, a communication device and a storage medium, in which a base station receives first capability indication information, where the first capability indication information indicates whether a user equipment (UE) supports a paging advance indication (PEI).

Description

[Technical field]

[0001] The present application relates to the field of wireless communication technologies, but is not limited to the field of wireless communication technologies, and in particular to information transmission methods, apparatus, communication devices and storage media. [Background technology]

[0002] In the related art, at a paging occasion (PO), all user equipments are woken up to monitor paging messages. Individual UEs have different probabilities of being paged in a PO. UEs with low probabilities of being paged are woken up together with UEs with high probabilities of being paged, and UEs with low probabilities of being paged have a high probability of being falsely woken up, which generates many false alarms and causes extra power loss. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of this, embodiments of the present disclosure provide an information transmission method, apparatus, communication device, and storage medium. [Means for solving the problem]

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided an information transmission method performed by a base station, the method comprising: The step of receiving first capability indication information includes a step of indicating whether a user equipment (UE) supports a paging advance indication (PEI).

[0005] According to a second aspect of an embodiment of the present disclosure, there is provided an information transmission method performed by a user equipment (UE), the method comprising: A step of transmitting first capability indication information, the first capability indication information including a step of indicating whether the UE supports a Paging Advance Indicator (PEI).

[0006] According to a third aspect of an embodiment of the present disclosure, there is provided an information transmission method performed by a core network, the method comprising: The step of receiving first capability indication information includes a step of indicating whether a user equipment (UE) supports a paging advance indication (PEI).

[0007] According to a fourth aspect of an embodiment of the present disclosure, there is provided an information transmission device, comprising: A first receiving module configured to receive first capability indication information, the first capability indication information including an indication of whether a user equipment (UE) supports a paging advance indication (PEI).

[0008] According to a fifth aspect of an embodiment of the present disclosure, there is provided an information transmission device, comprising: and a third sending module configured to send first capability indication information, the first capability indication information including a third sending module indicating whether a user equipment (UE) supports a paging advance indication (PEI).

[0009] According to a sixth aspect of an embodiment of the present disclosure, there is provided an information transmission device, comprising: and a third receiving module configured to receive first capability indication information, the first capability indication information indicating whether a user equipment (UE) supports a paging advance indication (PEI).

[0010] According to a seventh aspect of an embodiment of the present disclosure, there is provided a communication device apparatus including a processor, a memory, and an execution program stored in the memory and executable by the processor, the communication device apparatus performing steps of an information transmission method described in the first aspect, the second aspect, or the third aspect when the processor executes the execution program.

[0011] According to an eighth aspect of an embodiment of the present disclosure, there is provided a storage medium having an executable program stored thereon, the executable program implementing steps of the information transmission method described in the first aspect, the second aspect or the third aspect when executed by a processor. Effect of the Invention

[0012] The embodiments of the present disclosure provide an information transmission method, an apparatus, a communication device, and a storage medium. A base station receives first capability indication information, where the first capability indication information indicates whether a UE supports PEI. In this manner, the capability indication information indicates whether a UE supports PEI. The base station can determine the PEI capability of the UE, which reduces misjudgment of the UE capability due to the base station not determining the PEI capability of the UE, and improves the accuracy of the judgment of the PEI capability of the UE by the base station.

[0013] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the embodiments of the present disclosure. [Brief description of the drawings]

[0014] The drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification serve to explain the principles of the embodiments of the present invention. [Figure 1] 1 is a schematic diagram of the structure of a wireless communication system according to one exemplary embodiment; [Diagram 2]4 is a flowchart of an information transmission method according to one exemplary embodiment. [Diagram 3] 4 is a flowchart of another information transmission method according to an exemplary embodiment; [Figure 4] 10 is a flowchart of yet another information transmission method according to an exemplary embodiment; [Diagram 5] 10 is a flowchart of yet another information transmission method according to an exemplary embodiment; [Figure 6] 10 is a flowchart of yet another information transmission method according to an exemplary embodiment; [Figure 7] 10 is a flowchart of yet another information transmission method according to an exemplary embodiment; [Figure 8] 10 is a flowchart of yet another information transmission method according to an exemplary embodiment; [Figure 9] 10 is a flowchart of yet another information transmission method according to an exemplary embodiment; [Figure 10] 10 is a flowchart of yet another information transmission method according to an exemplary embodiment; [Figure 11] 1 is a block diagram of an information transmission device according to one exemplary embodiment; [Figure 12] FIG. 2 is a block diagram of another information transmission device according to an exemplary embodiment; [Figure 13] FIG. 11 is a block diagram of yet another information transmission device according to an exemplary embodiment. [Figure 14] 1 is a block diagram of an apparatus for information transmission according to one exemplary embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Exemplary embodiments will now be described in detail, examples of which are shown in the drawings. Where the following description refers to the drawings, the same numerals in different figures represent the same or similar elements unless otherwise noted. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with embodiments of the present invention. On the contrary, they are merely examples of apparatus and methods consistent with some aspects of embodiments of the present invention, as detailed in the claims.

[0016] The terms used in the embodiments of the present disclosure are used only to describe certain embodiments and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "the," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should be understood that the term "and / or" used herein means to include any or all possible combinations of one or more of the associated listed items.

[0017] In the embodiments of the present disclosure, terms such as first, second, and third may be used to describe various pieces of information, but it should be understood that the information is not limited to these terms. These terms are used only to distinguish between the same types of information. For example, the first information may be referred to as the second information, and similarly, the second information may be referred to as the first information, without departing from the scope of the embodiments of the present disclosure. Depending on the context, the word "if" as used herein may be interpreted as "when," "in the case of," or "in response to determining."

[0018] Please refer to Fig. 1, which shows a schematic diagram of the structure of a wireless communication system provided in an embodiment of the present disclosure. As shown in Fig. 1, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system can include multiple terminals 11 and multiple base stations 12.

[0019] Among them, the terminal 11 can refer to a device that provides voice and / or data connectivity to a user. The terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN), and the terminal 11 can be a terminal of the Internet of Things, such as a sensor device, a mobile phone (also called a "cellular" phone), and a computer having an Internet of Things terminal, and can be, for example, a fixed, portable, pocket, handheld, computer-embedded, or vehicle-mounted device. For example, the terminal 11 can be a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE). Or the terminal 11 can be an unmanned aerial vehicle device. Alternatively, the terminal 11 may be an in-vehicle device, such as a trip computer having wireless communication capabilities, or a wireless communication device to which a trip computer is externally attached, or the terminal 11 may be a roadside device, such as a street lamp, a traffic light, or other roadside device having wireless communication capabilities.

[0020] The base station 12 may be a network side device in a wireless communication system. Here, the wireless communication system may be the 4th generation mobile communication (4G) system, also called Long Term Evolution (LTE) system, or the wireless communication system may be a 5G system, also called new radio (NR) system or 5G NR system. Or the wireless communication system may be a next-generation system of the 5G system. Here, the access network in the 5G system may be called NG-RAN (New Generation-Radio Access Network). Or it may be an MTC system.

[0021] Here, the base station 12 may be an evolved base station (eNB) adopted in a 4G system. Or, the base station 12 may be a base station (gNB) adopting a centralized distributed architecture in a 5G system. When the base station 12 adopts a centralized distributed architecture, it generally includes a central unit (CU) and at least two distributed units (DU). The centralized unit is provided with a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer protocol stack, and the distributed units are provided with a physical (PHY) layer protocol stack. The embodiment of the present disclosure does not limit the specific implementation manner of the base station 12.

[0022] A wireless connection can be established between the base station 12 and the terminal 11 via a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on a fourth generation mobile communication network technology (4G) standard, or the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface, or the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.

[0023] In some embodiments, the terminals 11 can further establish an E2E (End to End) connection. For example, there are scenarios such as V2V (vehicle to vehicle, inter-vehicle) communication, V2I (vehicle to infrastructure, inter-vehicle) communication, and V2P (vehicle to pedestrian, inter-vehicle) communication in vehicle to everything (V2X) Internet communication.

[0024] In some embodiments, the wireless communication system may further include a network management device 13 .

[0025] Each of the base stations 12 is connected to a network management device 13. Here, the network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC) network. Or, the network management device may be another core network device, for example, a Serving Gate Way (SGW), a Public Data Network Gate Way (PGW), a Policy and Charging Rules Function (PCRF), or a Home Subscriber Server (HSS). The embodiment of the present disclosure does not limit the implementation form of the network management device 13.

[0026] Acting subjects of the embodiments of the present disclosure include, but are not limited to, mobile phone terminals in a cellular mobile communication system, access network devices such as base stations, and network side devices such as core networks.

[0027] Paging grouping can be performed for UEs according to the situation where all UEs are woken up in a PO. The group information may be carried in a paging DCI or a paging earlier indication (PEI). The UE determines whether to wake up in a PO based on the group information. The group information can be used to determine the group in which the UE is located. For example, the group information may include a group identifier, etc.

[0028] One grouping method is to perform grouping based on UE identifier information (UE-ID). The groups can be determined based on formula (1).

number

[0029]

number

[0030] Another grouping method is performed with the core network as the integration node. Visible grouping assigns group identifiers (subgroup IDs) directly in NR. In this case, the network assigns the subgroup IDs based on the implementation, for example, according to terminal attributes or statistical paging probability.

[0031] As an example, the PEI can use one bit to wake up all UEs, i.e., wake up non-grouped UEs.

[0032] Therefore, when two kinds of paging grouping methods are adopted and the PEI can wake up ungrouped UEs, how to wake up UEs based on the PEI is an urgent problem to be solved.

[0033] As shown in FIG. 2, this exemplary embodiment is a method for transmitting information executable by a base station of a cellular mobile communication system, comprising: The information transmission method includes a step 201 of receiving first capability indication information, the first capability indication information indicating whether the UE supports PEI or not.

[0034] The PEI can be used to indicate that the UE should wake up in a predetermined paging occasion (PO) and monitor for paging messages. Here, the predetermined PO can include one or more POs after the PEI. Whether the PEI is supported includes, but is not limited to, whether the UE should wake up in a predetermined PO based on the indication of the PEI.

[0035] The PEI may be used to wake up all UEs, or may be used to wake up UEs in a predetermined range (e.g., a predetermined group, a predetermined type, etc.). The PEI may include indication information according to different groups of UEs, which is used to wake up UEs in different groups. Whether the PEI is supported may include, but is not limited to, whether the PEI that wakes up all UEs is supported, and / or whether the PEI that wakes up UEs in a predetermined range is supported.

[0036] The capability indication information may be transmitted from the UE to the base station, may be transmitted from the core network to the base station, or may be transmitted from the opposing base station.

[0037] The UE can carry capability indication information through uplink signaling in situations such as a random access process or after establishing an RRC connection.

[0038] After receiving the capability indication information, the base station can determine whether the UE supports PEI. If the UE supports PEI, the base station wakes up the UE to monitor the PO using the PEI supported by the UE. This reduces the situation where the base station cannot determine whether the UE supports PEI, and therefore transmits PEI to the UE when the UE does not support PEI, or does not transmit PEI to the UE when the UE supports PEI. If the UE does not support PEI, transmitting PEI to the UE will increase the operation load of the base station, and if the UE supports PEI but does not transmit PEI to the UE, the UE cannot receive PEI, so it needs to be frequently woken up to monitor PO, which causes power loss of the UE.

[0039] In this way, the capability indication information indicates whether the UE supports PEI. The base station can determine the PEI capability of the UE, and since the base station does not determine the PEI capability of the UE, the occurrence of misjudgment of the UE capability is reduced, and the accuracy of the base station's judgment of the UE's PEI capability is improved.

[0040] In one embodiment, the first capability indication information is Whether the UE supports a first type of PEI; It is used to indicate at least one of: whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI.

[0041] In one embodiment, the first class PEI may have one bit used to indicate whether to wake up the UE. The first class PEI may also be used to subsequently extend other information besides the paging indication, for example, to carry reference signal availability indication information. In this specification, a preferred embodiment of the first class PEI is a PEI for indicating degrouping.

[0042] As one embodiment, the second type PEI may have multiple bits that are used to indicate whether to wake up the UE or not.

[0043] The first type of PEI is a common PEI that can be used to wake up all UEs that need to monitor the same PO; The second type of PEI is a PEI according to a paging group, which can be used to wake up all UEs in the corresponding paging group that monitor the same PO.

[0044] If the PEI has one bit, i.e., the PEI is a first type PEI, the PEI can be used to wake up all UEs that have received the PEI, i.e., the first type PEI does not distinguish the paging group of the UE.

[0045] When the PEI has multiple bits, i.e., the PEI is a second-class PEI, each bit of the multiple bits can be used to wake up UEs of one or more paging groups, i.e., the second-class PEI distinguishes paging groups of the UE.

[0046] As an example, the PEI may include POnumPerPEI segments, which may be referred to as subgroupsNumPerPO fields, where each segment may correspond to one PO. Each segment includes subgroupsNumPerPO bits, where each bit carries one paging indication used to indicate whether to wake up one or more paging groups at the corresponding PO.

[0047] The PEI is a first type PEI, and the subgroupsNumPerPO field has one paging indication bit, which is used to wake up all UEs that receive the PEI to monitor paging messages in the PO. For example, if the paging indication bit is '1', all UEs that receive the PEI are woken up to monitor paging messages within the PO period, and if the paging indication bit is '0', the UE is instructed to keep a sleep state within the PO period, such as an RRC idle state or an RRC inactive state.

[0048] The PEI is a second type of PEI, and the subgroupsNumPerPO field has multiple bits, each bit can correspond to one paging group, and the UEs in different paging groups decide whether to wake up in the PO period according to the bits corresponding to their paging groups. For example, the subgroupsNumPerPO field has two bits corresponding to two paging groups, respectively, and when one of the bits is "1", the UEs in the paging group corresponding to the bit wake up to monitor paging messages in the PO, and when one of the bits is "0", the UEs in the paging group corresponding to the bit stay in sleep state in the PO.

[0049] The capability indication information may be used to indicate whether the UE supports a first type of PEI and / or a second type of PEI.

[0050] If the capability indication information indicates that the UE supports the first type of PEI, the base station can wake up the UE to monitor the PO using the first type of PEI, reducing the number of situations in which the UE needs to be woken up at each PO and reducing the power loss of the UE.

[0051] If the capability indication information indicates that the UE supports the second type of PEI, the base station can wake up the UE to monitor the PO based on the paging group using the second type of PEI, which reduces the situation where the UE is woken up by the PO when the paging group in which the UE is located is not paged, and reduces the power loss of the UE.

[0052] In this way, the capability indication information indicates whether the UE supports PEI. The base station can determine the PEI capability of the UE, and then, based on the PEI capability of the UE, send the PEI supported by the UE to wake up the UE to monitor the PO, and if there is no need to wake up the UE, do not wake up the UE to monitor, thereby reducing the power loss caused by the UE being woken up frequently.

[0053] In one embodiment, whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0054] The first class of paging grouping scheme and the second class of paging grouping scheme use different schemes to divide the paging groups. The first class of paging grouping scheme and the second class of paging scheme may be implemented by different network nodes. The first class of paging grouping scheme and the second class of paging scheme may be implemented by the same network node.

[0055] The core network or the base station etc. can use different paging grouping schemes to divide the paging groups, thereby generating different types of paging groups. Each paging grouping scheme can divide multiple paging groups, for example, the paging groups can be grouped based on the service type of the UE, or the paging groups can be grouped based on the transmission rate of the UE.

[0056] The second type PEI corresponding to at least the first type of paging grouping scheme can be used to indicate whether to wake up the UEs in the paging group corresponding to at least the first type of paging grouping scheme.

[0057] A second class PEI corresponding to at least a second class paging grouping scheme can be used to indicate whether to wake up the UEs in the paging group corresponding to at least the second class paging grouping scheme.

[0058] In one embodiment, The first class of paging grouping schemes includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes paging grouping schemes that determine a paging group based on a UE identifier.

[0059] The first type of paging grouping scheme may be a scheme in which the core network divides the paging groups based on UE attributes, where the UE attributes may include, but are not limited to, the UE service type, the UE transmission number, the UE transmission bandwidth, etc.

[0060] The second type of paging grouping scheme may be a scheme in which an access network device, such as a base station, divides a paging group based on UE identifier information (UE-ID). For example, the base station may determine a paging group for a UE using formula (1).

[0061] Each bit of the plurality of bits of the second class PEI can be used to indicate whether to wake up one or more paging groups in a given PO, where the paging groups can include paging groups divided according to a first class paging grouping scheme or paging groups divided according to a second class paging grouping scheme.

[0062] As an example, the second class PEI may have eight bits, of which four bits are used to indicate one of the four paging groups divided using the first class paging grouping scheme, and the other four bits are used to indicate one of the four paging groups divided using the second class paging grouping scheme.

[0063] The second class PEI corresponding to at least the first class paging grouping scheme may include a second class PEI corresponding only to the first class paging grouping scheme, or may include a second class PEI corresponding simultaneously to the first class paging grouping scheme and the second class paging grouping scheme.

[0064] The second class PEI corresponding to at least the second class paging grouping scheme may include a second class PEI corresponding only to the second class paging grouping scheme, or may include a second class PEI corresponding simultaneously to the first class paging grouping scheme and the second class paging grouping scheme.

[0065] The capability indication information indicates whether the UE supports PEIs corresponding to different types of paging groups. The base station can determine the UE's support capability for PEIs corresponding to different paging group types, and the base station can send the PEIs corresponding to the paging group types to the UE to wake up the UE to monitor the PO, thereby reducing the situation in which the UE is woken up in the PO of other types of paging groups and reducing the power loss caused by the UE being woken up in an invalid PO.

[0066] As shown in FIG. 3, this exemplary embodiment provides an information transmission method, which includes at least one of the following steps 301a and 301b.

[0067] In step 301a, in response to first capability indication information indicating that the UE supports the second type of PEI, determine that the UE supports the first type of PEI.

[0068] In step 301b, in response to the first capability indication information indicating that the UE does not support at least a second type PEI corresponding to a first type paging grouping scheme and at least a second type PEI corresponding to a second type paging grouping scheme, it is determined that the UE does not support the first type PEI.

[0069] Here, step 301a or 301b may be performed alone or in combination with step 201.

[0070] The capability indication information may indicate whether the UE supports PEI, PEIs corresponding to different paging grouping schemes, etc. in an explicit manner. The capability indication information may also indicate whether the UE supports PEI, PEIs corresponding to different paging grouping schemes, etc. in an implicit manner.

[0071] For example, when the capability indication information indicates that the UE supports a second type of PEI, the capability indication information may implicitly indicate that the UE simultaneously supports a first type of PEI, where the second type of PEI may include at least a second type of PEI corresponding to the first type of paging grouping scheme and / or at least a second type of PEI corresponding to the second type of paging grouping scheme.

[0072] For example, if the capability indication information indicates that the UE does not support a second type of PEI, the capability indication information implicitly indicates that the UE does not support a first type of PEI either, where the second type of PEI may include at least a second type of PEI corresponding to a first type of paging grouping scheme and at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0073] Whether the capability indication information is in the form of explicit indication and / or implicit indication can be specified by a communication protocol, or can be determined by mutual consultation between the core network, the base station, and the UE.

[0074] The capability indication information may be in the form of an explicit indication and / or an implicit indication, and may be, but is not limited to, the following methods.

[0075] Scheme 1: The UE can independently indicate whether it supports the first type PEI and the second type PEI. The capability indication information can independently indicate to the base station that the UE supports the first type of PEI; The capability indication information can alone indicate to the base station that the UE at least supports a second type of PEI corresponding to a second type of paging grouping scheme.

[0076] Method 2: A capability indication indicates whether the first class PEI and the second class PEI are supported. The capability indication information indicates that the UE supports a second type of PEI, and implicitly indicates that the UE supports a first type of PEI.

[0077] If the UE supports a first type of PEI, the UE may report capability indication information indicating that the UE supports the first type of PEI and further indicating that the UE supports a second type of PEI.

[0078] The UE may only report capability indication information indicating that it supports the first type of PEI, and may implicitly indicate that it does not support the second type of PEI.

[0079] The UE may report capability indication information indicating that it supports a first type of PEI and a second type of PEI simultaneously, and the capability indication information may use two flag bits to indicate that the UE supports a first type of PEI and a second type of PEI, respectively.

[0080] The UE may report capability indication information indicating that it supports the first type of PEI but does not support the second type of PEI, and may express that it supports only the first type of PEI by not reporting the flag, i.e., the absence of the flag bit may implicitly express that it does not support the second type of PEI.

[0081] The UE may report capability indication information indicating that it supports a second type of PEI, and reporting that it supports a second type of PEI implicitly indicates that the UE also supports a first type of PEI.

[0082] The capability indication information reported by the UE as described above, indicating whether the UE supports a second type of PEI, may include indicating whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0083] Scheme 3: the UE can only report to the base station whether it supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0084] The base station can further obtain capability indication information from the core network as to whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme, i.e., obtain from the core network whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme, and the base station combines the two approaches to obtain the capability of the UE.

[0085] When the base station determines that the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme, or at least a second type of PEI corresponding to a second type of paging grouping scheme, the base station determines that the UE supports a first type of PEI.

[0086] When the base station determines that the UE does not support at least a second type of PEI corresponding to a first type of paging grouping scheme and does not support at least a second type of PEI corresponding to a second type of paging grouping scheme, the base station determines that the UE does not support a first type of PEI.

[0087] In one embodiment, the step of receiving the first capability indication comprises: receiving the first capability indication sent from the UE, the first capability indication indicating whether the UE supports the first type of PEI; receiving the first capability indication information sent from the UE, the first capability indication indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; receiving the first capability indication information sent from a core network; and receiving the first capability indication information transmitted from an opposing base station.

[0088] The UE can determine whether it supports the first type of PEI, and therefore capability indication information indicating whether the UE supports the first type of PEI can be sent by the UE to the base station.

[0089] The UE may determine whether it supports at least a second type of PEI corresponding to a second type of paging grouping scheme. For example, the UE may determine whether it supports a paging grouping scheme based on a UE_ID, and thus may send capability indication information to the base station by the UE, indicating whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0090] For example, the base station determines that the terminal supports at least a second type of PEI corresponding to a second type of paging grouping scheme based on the capability indication information reported by the UE. The base station determines that the terminal does not support at least a second type of PEI corresponding to a second type of paging grouping scheme based on the capability indication information reported by the UE. Or, if the base station does not receive the capability indication information, the base station determines that the terminal does not support at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0091] In one embodiment, the capability indication information can be carried in UE Capability Information or an uplink assistance message, where the UE capability information is used to indicate at least the frequencies that the UE supports.

[0092] When the UE is released from the RRC connected state, it can carry capability indication information via an uplink assistance message.

[0093] The capability indication information may be transmitted to the base station by the core network, and the capability indication information indicates whether the UE supports a first type of PEI, and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0094] Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme can be reported by the UE to the core network by NAS signaling, and thus the capability indication information sent from the core network to the base station can further indicate whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme.

[0095] As an example, whether the terminal supports at least a second type of PEI corresponding to a first type of paging grouping scheme is determined by the base station through an explicit indication based on capability indication information sent from the core network.

[0096] The capabilities of the UE can further be transmitted between base stations. The capability indication can be sent by the opposing base station.

[0097] As an example, the UE may be an inactive UE, and the opposing base station may be an anchor base station for the UE, and the anchor base station holds capability indication information on whether the UE supports PEI, and when the UE performs cell reselection within the coverage range of the current base station, the current base station can obtain the capability indication information from the anchor base station and further determine whether the UE supports PEI.

[0098] As an example, when cell reselection occurs for an inactive UE, the base station obtains the reported capabilities of the terminal from the anchor base station.

[0099] For example, the capability indication information may be transmitted to the base station via a context response of the UE, or via a paging message from the core network.

[0100] The base station can directly determine whether the UE supports the first type of PEI based on the capability indication information sent from the opposite base station; The base station can directly determine whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme according to the capability indication information sent from the opposite base station; The base station can directly determine whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme according to the capability indication information sent from the opposite base station; The base station determines that the UE supports a second type of PEI corresponding to at least a first type of paging grouping scheme, or determines that the UE supports a first type of PEI based on the UE supporting at least a second type of PEI corresponding to a second type of paging grouping scheme; The base station determines that the UE does not support a first type of PEI based on the fact that the UE does not support a second type of PEI corresponding to at least a first type of paging grouping scheme, or based on the fact that the UE does not support a second type of PEI corresponding to at least a second type of paging grouping scheme.

[0101] In one embodiment, in response to the opposite base station sending group information of a first type of paging grouping scheme of the UE, the UE determines that it supports at least a second type of PEI corresponding to the first type of paging grouping scheme.

[0102] In one embodiment, the step of receiving the first capability indication information transmitted from a core network includes: In response to receiving group information of the first type of paging grouping scheme of the UE transmitted from the core network, the method includes determining that the UE supports at least the second type of PEI corresponding to the first type of paging grouping scheme.

[0103] The first capability indication information may be group information of a first type of paging grouping scheme of the UE. When the core network sends the group information of the first type of paging grouping scheme of the UE to the base station, it can determine that the UE supports at least a second type of PEI corresponding to the first type of paging grouping scheme.

[0104] The group information can be used to indicate a paging group. The group information may be a group identifier (subgroup ID) of the UE. If the core network assigns a group identifier to the UE, it can determine that the terminal supports at least a second type of PEI corresponding to the first type of paging grouping scheme. The group information sent from the core network can be considered as a manner of implicitly indicating that the terminal supports at least a second type of PEI corresponding to the first type of paging grouping scheme.

[0105] As an example, the base station determines whether the terminal supports at least a second type of PEI corresponding to a first type of paging grouping scheme based on a group identifier transmitted from the core network.

[0106] As shown in FIG. 4, this exemplary embodiment provides an information transmission method, and the method further includes at least one of steps 401a to 401d.

[0107] In step 401a, send a second capability indication to an opposing base station, indicating whether the UE supports the first type of PEI.

[0108] In step 401b, send a second capability indication to an opposing base station, indicating whether the UE supports the second type of PEI.

[0109] In step 401c, sending a second capability indication to a core network, indicating whether the UE supports the first type of PEI.

[0110] In step 401d, sending a second capability indication to a core network, indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme.

[0111] Here, step 401a, step 401b, step 401c and / or step 401d may be performed alone or in combination with step 301a, step 301b and / or step 201.

[0112] The capabilities of the UE can also be transmitted between base stations, and the base station can send capability indication information to the opposing base station.

[0113] As an example, the UE may be an inactive UE, the opposing base station may be a base station from which the UE performs cell reselection, and the anchor base station holds capability indication information on whether the UE supports PEI, and when the UE performs cell reselection within the coverage range of the opposing base station, the anchor base station can send the capability indication information to the opposing base station, and the opposing base station can determine whether the UE supports PEI.

[0114] The capability indication information transmitted between the base stations may indicate at least one of whether the UE supports a first type of PEI and whether the UE supports a second type of PEI.

[0115] After receiving the capability indication information reported by the UE, the base station can report the capability of the UE to the core network. The capability indication information reported by the UE can be used to indicate whether the UE supports a first type of PEI and / or whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme. Therefore, the capability indication information sent by the base station can also be used to indicate whether the UE supports a first type of PEI and / or whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0116] For example, the UE reports the UE's ability to support PEI to the base station through capability indication information, and the base station further notifies the core network through capability indication information, where the capability indication information can indicate whether the UE supports a first type of PEI and / or whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme. Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme is conveyed to the core network by the terminal through NAS signaling, and therefore does not need to be reported by the base station.

[0117] As an example, the capability indication information can be carried in the following message: UE CAPABILITY INFO INDICATION, RRC INACTIVE TRANSITION REPORT.

[0118] In one embodiment, the base station sends to the UE the PEIs that the UE supports.

[0119] After the base station determines the UE's supportable PEI, it can send the UE's supportable PEI to the UE in a subsequent paging process. In this way, the base station can send the UE's supported PEI to wake up the UE to monitor the PO, and if it is not necessary to wake up the UE, it will not wake up the UE to monitor, thereby reducing the power loss caused by the UE being frequently woken up.

[0120] As shown in FIG. 5, this exemplary embodiment provides an information transmission method, where the method further includes step 501.

[0121] In step 501, a third capability indication is sent to the UE, where the third capability indication is used by the UE to determine a transmittable PEI of the base station.

[0122] Here, step 501 may be performed alone or in combination with step 301a, step 301b, step 401a, step 401b, step 401c, step 401d and / or step 201.

[0123] The capability indication information may indicate a transmittable PEI of the base station. The UE may determine whether to monitor the PEI transmitted from the base station based on the transmittable PEI of the base station and the PEI supported by the UE itself.

[0124] For example, if the UE can support the PEI transmitted from the base station, the UE can monitor the PEI, and if the UE does not support the PEI transmitted from the base station, the UE does not need to monitor the PEI transmitted from the base station.

[0125] If the UE does not monitor the PEI of the base station, the UE may wake up at each PO and monitor for paging messages.

[0126] The capability indication may be carried in common signaling, for example, the capability indication may be carried in a system message broadcast to the UE.

[0127] The capability indication may be carried in dedicated signaling, for example, the capability indication may be carried in an RRC message to be sent to the UE.

[0128] In one embodiment, the third capability indication information indicates that the UE is capable of transmitting the base station: The first class of PEI; A second class PEI corresponding to a first class paging grouping scheme, the second class PEI including multiple bits; The second class PEI corresponding to the second class paging grouping method; The PEI is used to determine at least one of the first class of paging grouping scheme and the second class of PEI corresponding to the second class of paging grouping scheme.

[0129] As an example, if a base station can transmit a first type of PEI, a UE that supports a first type of PEI may monitor the PEI and monitor a paging message according to the indication of the PEI.

[0130] As an example, if a base station can transmit a first type of PEI, a UE that does not support the first type of PEI may not monitor the PEI, revert to a legacy paging method, and be woken up to monitor paging messages in each PO.

[0131] As an example, if a base station can transmit a second type PEI corresponding to a first type paging grouping scheme, a UE that supports a second type PEI corresponding to the first type paging grouping scheme may monitor the PEI and monitor paging messages based on the instructions of the PEI.

[0132] In one embodiment, the UE determines whether it needs to be woken up at the PO based on the group information of its first type of paging grouping scheme and the indication of the PEI.

[0133] For example, the PEI may indicate a group that needs to be woken up in a first type of paging grouping scheme, and the UE can determine whether its own group needs to be woken up.

[0134] As an example, if a base station can transmit a second type PEI corresponding to a first type paging grouping scheme, if the base station does not support a second type PEI corresponding to the first type paging scheme, the base station may not monitor the PEI, and may revert to a legacy paging scheme and be tuned to monitor paging messages in each PO.

[0135] In one embodiment, if the base station can transmit a second type PEI corresponding to a first type paging grouping scheme, a UE that supports a second type PEI corresponding to the first type paging grouping scheme will only monitor the PEI transmitted from the base station if group information of the first type paging grouping scheme is configured; otherwise, the UE will not monitor the PEI.

[0136] As an example, if a base station can transmit a second type PEI corresponding to a second type paging grouping scheme, a UE that supports a second type PEI corresponding to the second type paging grouping scheme may monitor the PEI and monitor paging messages based on the instructions of the PEI.

[0137] As an example, if a base station can transmit a second type PEI corresponding to a second type paging grouping scheme, if the base station does not support a second type PEI corresponding to a second type paging group, the base station may not monitor the PEI, and may revert to a legacy paging scheme and be tuned to monitor paging messages in each PO.

[0138] As an example, the base station can send a second type PEI corresponding to a first type paging grouping scheme and a second type paging grouping scheme, and if the UE supports at least a second type PEI corresponding to the first type paging grouping scheme, or supports at least a second type PEI corresponding to the second type paging grouping scheme, the UE can monitor the PEI and monitor paging messages based on the indication of the PEI.

[0139] As an example, the base station can transmit a second type PEI corresponding to a first type paging grouping scheme and a second type paging grouping scheme, and if the UE does not support the second type PEI corresponding to at least the first type paging grouping scheme and does not support the second type PEI corresponding to at least the second type paging grouping scheme, the UE may not monitor the PEI and may revert to a legacy paging scheme and be tuned up to monitor paging messages in each PO.

[0140] In one embodiment, if the base station can transmit a second type PEI corresponding to a first type paging grouping scheme and a second type paging grouping scheme, a UE that only supports a second type PEI corresponding to the first type paging grouping scheme will only monitor the PEI transmitted from the base station if group information of the first type paging grouping scheme is configured, otherwise the UE will not monitor the PEI.

[0141] In one embodiment, if a base station can transmit a second class PEI corresponding to a first class paging grouping scheme and a second class paging grouping scheme, and a UE supports at least a second class PEI corresponding to a first class paging grouping scheme and at least a second class PEI corresponding to a second class paging grouping scheme, the UE can monitor the PEI transmitted from the base station, detect the PEI using the group information of the first class paging grouping scheme and the group information of the second class paging grouping scheme of the UE, respectively, and determine whether the group corresponding to the group information of the first class paging grouping scheme or the paging group corresponding to the group information of the second class paging grouping scheme is woken up by the PO. Here, the group information of the first class paging grouping scheme of the UE can be a group identifier assigned by the core network, and the group information of the first class paging grouping scheme of the UE can be a group identifier determined based on the UE_ID.

[0142] As shown in FIG. 6, this exemplary embodiment provides an information transmission method executable by a UE of a cellular mobile communication system, the method including step 601 .

[0143] In step 601, send first capability indication information, where the first capability indication information indicates whether the UE supports PEI.

[0144] The PEI can be used to indicate that the UE should wake up in a predetermined paging occasion (PO) and monitor for paging messages. Here, the predetermined PO can include one or more POs after the PEI. Whether the PEI is supported includes, but is not limited to, whether the UE should wake up in a predetermined PO based on the indication of the PEI.

[0145] The PEI may be used to wake up all UEs, or may be used to wake up UEs in a predetermined range (e.g., a predetermined group, a predetermined type, etc.). The PEI may include indication information for different groups of UEs to wake up the UEs in different groups. Whether the PEI is supported may include, but is not limited to, whether the PEI that wakes up all UEs is supported, and / or whether the PEI that wakes up UEs in a predetermined range is supported.

[0146] The UE may carry the capability indication information through uplink signaling in a random access procedure, or after establishing an RRC connection, etc. The UE may carry the capability indication information through NAS signaling, etc. The capability indication information may be received by a base station or a core network, etc.

[0147] After receiving the capability indication information, the base station can determine whether the UE supports PEI. If the UE supports PEI, the base station wakes up the UE to monitor the PO using the PEI supported by the UE. This reduces the situation where the base station cannot determine whether the UE supports PEI, and therefore transmits PEI to the UE when the UE does not support PEI, or does not transmit PEI to the UE when the UE supports PEI. If the UE does not support PEI, transmitting PEI to the UE will increase the operation load of the base station, and if the UE supports PEI but does not transmit PEI to the UE, the UE cannot receive PEI, so it needs to frequently wake up to monitor PO, which causes power loss of the UE.

[0148] In this way, the capability indication information indicates whether the UE supports PEI. The base station can determine the PEI capability of the UE, and since the base station does not determine the PEI capability of the UE, the occurrence of misjudgment of the UE capability is reduced, and the accuracy of the base station's judgment of the UE's PEI capability is improved.

[0149] In one embodiment, the first capability indication information is Whether the UE supports a first type of PEI; It is used to indicate at least one of: whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI.

[0150] The first class PEI may have one bit used to indicate whether to wake up the UE, and the second class PEI may have multiple bits used to indicate whether to wake up the UE.

[0151] The first type of PEI is a common PEI that can be used to wake up all UEs that need to monitor the same PO; The second type of PEI is a PEI according to a paging group, which can be used to wake up all UEs in the corresponding paging group that monitor the same PO.

[0152] If the PEI has one bit, i.e., the PEI is a first type PEI, the PEI can be used to wake up all UEs that have received the PEI, i.e., the first type PEI does not distinguish the paging group of the UE.

[0153] When the PEI has multiple bits, i.e., the PEI is a second-class PEI, each bit of the multiple bits can be used to wake up UEs of one or more paging groups, i.e., the second-class PEI distinguishes paging groups of the UE.

[0154] As an example, the PEI may include POnumPerPEI segments, which may be referred to as subgroupsNumPerPO fields, where each segment may correspond to one PO. Each segment includes subgroupsNumPerPO bits, where each bit carries one paging indication used to indicate whether to wake up one or more paging groups at the corresponding PO.

[0155] The PEI is a first type PEI, and the subgroupsNumPerPO field has one paging indication bit, which is used to wake up all UEs that receive the PEI to monitor paging messages in the PO. For example, if the paging indication bit field is '1', all UEs that receive the PEI are woken up to monitor paging messages within the PO period, and if the paging indication bit field is '0', it indicates that the UEs stay in a sleep state within the PO period, such as an RRC idle state or an RRC inactive state.

[0156] The PEI is a second type of PEI, and the subgroupsNumPerPO field has multiple bits, each bit can correspond to one paging group, and the UEs in different paging groups decide whether to wake up in the PO period according to the bits corresponding to their paging groups. For example, the subgroupsNumPerPO field has two bits corresponding to two paging groups, respectively, and when one of the bits is "1", the UEs in the paging group corresponding to the bit wake up to monitor paging messages in the PO, and when one of the bits is "0", the UEs in the paging group corresponding to the bit stay in sleep state in the PO.

[0157] The capability indication information may be used to indicate whether the UE supports a first type of PEI and / or a second type of PEI.

[0158] If the capability indication information indicates that the UE supports the first type of PEI, the base station can wake up the UE to monitor the PO using the first type of PEI, reducing the number of situations in which the UE needs to be woken up at each PO and reducing the power loss of the UE.

[0159] If the capability indication information indicates that the UE supports the second type of PEI, the base station can wake up the UE to monitor the PO based on the paging group using the second type of PEI, which reduces the situation where the UE is woken up by the PO when the paging group in which the UE is located is not paged, and reduces the power loss of the UE.

[0160] In this way, the capability indication information indicates whether the UE supports PEI. The base station can determine the PEI capability of the UE, and then, based on the PEI capability of the UE, send the PEI supported by the UE to wake up the UE to monitor the PO, and if there is no need to wake up the UE, do not wake up the UE to monitor, thereby reducing the power loss caused by the UE being woken up frequently.

[0161] In one embodiment, whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0162] The first class of paging grouping scheme and the second class of paging grouping scheme use different schemes to divide the paging groups. The first class of paging grouping scheme and the second class of paging grouping scheme may be implemented by different network nodes. The first class of paging grouping scheme and the second class of paging grouping scheme may be implemented by the same network node.

[0163] The core network or the base station etc. can use different paging grouping schemes to divide the paging groups, thereby generating different types of paging groups. Each paging grouping scheme can divide multiple paging groups. For example, the paging groups can be grouped based on the traffic type of the UE, or the paging groups can be grouped based on the transmission rate of the UE.

[0164] The second type PEI corresponding to at least the first type of paging grouping scheme can be used to indicate whether to wake up the UEs in the paging group corresponding to at least the first type of paging grouping scheme.

[0165] A second class PEI corresponding to at least a second class paging grouping scheme can be used to indicate whether to wake up the UEs in the paging group corresponding to at least the second class paging grouping scheme.

[0166] In one embodiment, the first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes paging grouping schemes that determine a paging group based on a UE identifier.

[0167] The first type of paging grouping scheme may be a scheme in which the core network divides the paging groups based on UE attributes, where the UE attributes may include, but are not limited to, the UE service type, the UE transmission number, the UE transmission bandwidth, etc.

[0168] The second type of paging grouping scheme may be a scheme in which the base station divides the paging group according to UE identification information (UE-ID). For example, the base station may determine the paging group of the UE by using formula (1).

[0169] Each bit of the plurality of bits of the second class PEI can be used to indicate whether to wake up one or more paging groups in a given PO, where the paging groups can include paging groups divided according to a first class paging grouping scheme or paging groups divided according to a second class paging grouping scheme.

[0170] As an example, the second class PEI may have eight bits, of which four bits are used to indicate one of the four paging groups divided using the first class paging grouping scheme, and the other four bits are used to indicate one of the four paging groups divided using the second class paging grouping scheme.

[0171] The second class PEI corresponding to at least the first class paging grouping scheme may include a second class PEI corresponding only to the first class paging grouping scheme, or may include a second class PEI corresponding simultaneously to the first class paging grouping scheme and the second class paging grouping scheme.

[0172] The second class PEI corresponding to at least the second class paging grouping scheme may include a second class PEI corresponding only to the second class paging grouping scheme, or may include a second class PEI corresponding simultaneously to the first class paging grouping scheme and the second class paging grouping scheme.

[0173] The capability indication information indicates whether the UE supports PEIs corresponding to different types of paging groups. The base station can determine the UE's support capability for PEIs corresponding to different paging group types, and the base station can send the PEIs corresponding to the paging group types to the UE to wake up the UE to monitor the PO, thereby reducing the situation in which the UE is woken up in the PO of other types of paging groups and reducing the power loss caused by the UE being woken up in an invalid PO.

[0174] In one embodiment, the step of transmitting the first capability indication information comprises: sending the first capability indication information to a base station, the first capability indication information indicating whether the UE supports the first type of PEI; sending the first capability indication information to a base station, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; and sending first capability indication information to a core network, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a first type of paging grouping scheme.

[0175] The UE can determine whether it supports the first type of PEI, and therefore capability indication information indicating whether the UE supports the first type of PEI can be sent by the UE to the base station.

[0176] The UE may determine whether it supports at least a second type of PEI corresponding to a second type of paging grouping scheme. For example, the UE may determine whether it supports a paging grouping scheme based on a UE_ID, and thus may send capability indication information to the base station by the UE, indicating whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0177] For example, the base station determines that the terminal supports at least a second type of PEI corresponding to a second type of paging grouping scheme based on the capability indication information reported by the UE. The base station determines that the terminal does not support at least a second type of PEI corresponding to a second type of paging grouping scheme based on the capability indication information reported by the UE. Or, if the base station does not receive the capability indication information, the base station determines that the terminal does not support at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0178] In one embodiment, the capability indication information can be carried in UE Capability Information or an uplink assistance message, where the UE capability information is used to indicate at least the frequencies that the UE supports.

[0179] When the UE is released from the RRC connected state, it can carry capability indication information via an uplink assistance message.

[0180] Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme can be reported by the UE to the core network by NAS signaling, and thus the capability indication information sent from the core network to the base station can further indicate whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme.

[0181] As an example, whether the terminal supports at least a second type of PEI corresponding to a first type of paging grouping scheme is determined by the base station through an explicit indication based on capability indication information sent from the core network.

[0182] As shown in FIG. 7, this exemplary embodiment provides an information transmission method, where the method further includes step 701.

[0183] In step 701, a second capability indication is received from a base station, where the second capability indication is used for the UE to determine a transmittable PEI of the base station.

[0184] Here, step 701 may be performed alone or in combination with step 601 .

[0185] The capability indication information may indicate a transmittable PEI of the base station. The UE may determine whether to monitor the PEI transmitted from the base station based on the transmittable PEI of the base station and the PEI supported by the UE itself.

[0186] For example, if the UE can support the PEI transmitted from the base station, the UE can monitor the PEI, and if the UE does not support the PEI transmitted from the base station, the UE does not need to monitor the PEI transmitted from the base station.

[0187] If the UE does not monitor the PEI of the base station, the UE may wake up at each PO and monitor for paging messages.

[0188] The capability indication may be carried in common signaling, for example, the capability indication may be carried in a system message broadcast to the UE.

[0189] The capability indication may be carried in dedicated signaling, for example, the capability indication may be carried in an RRC message to be sent to the UE.

[0190] In one embodiment, the second capability indication information indicates the UE's transmittable capability of the base station. Class 1 PEI and a second class PEI corresponding to a first class paging grouping scheme, the first class PEI being different from the second class PEI; The second class PEI corresponding to the second class paging grouping method; The PEI is used to determine at least one of the first class of paging grouping scheme and the second class of PEI corresponding to the second class of paging grouping scheme.

[0191] As shown in FIG. 8, this exemplary embodiment provides an information transmission method, where the method further includes step 801.

[0192] In step 801, the UE determines whether to monitor the PEI transmitted from the base station based on the PEI supported by the UE.

[0193] Here, step 801 may be performed alone or in combination with step 601 and / or step 701.

[0194] According to its own capabilities, the UE can determine whether to monitor the PEI sent by the base station. If the UE does not monitor the PEI, it can use the related art solutions to monitor the paging message in each PO.

[0195] In one embodiment, the step of determining whether to monitor a PEI transmitted from the base station based on a PEI supported by the UE includes: In response to the UE determining that it supports a transmittable PEI of the base station, monitoring a PEI transmitted from the base station; and in response to the UE determining that it does not support a transmittable PEI of the base station, not monitoring a PEI transmitted from the base station.

[0196] If the UE supports the PEI sent by the base station, the UE can monitor the PEI and be woken up in the PO according to the instruction of the PEI, which reduces the situation of waking up in each PO and saves the power consumption of the UE.

[0197] If the UE does not support the PEI sent by the base station, the UE will use the method of the related art to wake up at each PO and monitor the paging message, thereby reducing the situation of missing the paging message monitoring.

[0198] In one embodiment, in response to the UE determining that it supports a transmittable PEI of the base station, monitoring a PEI transmitted from the base station includes: monitoring a PEI transmitted from the base station in response to the base station being capable of transmitting a first type of PEI and the UE supporting the first type of PEI; the base station being capable of transmitting a second type of PEI, and in response to the UE supporting the second type of PEI, monitoring the PEI transmitted from the base station.

[0199] As an example, if a base station can transmit a first type of PEI, a UE that supports a first type of PEI may monitor the PEI and monitor a paging message according to the indication of the PEI.

[0200] As an example, if a base station can transmit a first type of PEI, a UE that does not support the first type of PEI may not monitor the PEI, revert to a legacy paging method, and be woken up to monitor paging messages in each PO.

[0201] As an example, if the base station can transmit a second type of PEI, a UE that supports the second type of PEI may monitor the PEI and monitor the paging message according to the indication of the PEI.

[0202] As an example, if a base station can transmit a second type of PEI, a UE that does not support the second type of PEI may not monitor the PEI, revert to a legacy paging method, and be woken up to monitor paging messages in each PO.

[0203] In one embodiment, the UE determines whether it needs to be woken up by the PO based on the group information of its first type paging grouping scheme and / or second type paging grouping scheme and the indication of the PEI.

[0204] For example, the PEI may indicate at least a paging group of a first type of paging grouping scheme that needs to be woken up, and the UE may determine whether its paging group of the first type of paging grouping scheme needs to be woken up; Or, The PEI can indicate at least the paging groups of the second type paging grouping scheme that need to be woken up, and the UE can determine whether its own paging groups of the second type paging grouping scheme need to be woken up.

[0205] In one embodiment, in response to the base station being able to transmit the first type of PEI and the UE supporting the first type of PEI, monitoring the PEI transmitted from the base station includes: monitoring a PEI transmitted from the base station in response to the base station being capable of transmitting the first type PEI and the UE supporting the first type PEI and the second type PEI; and in response to the base station being able to transmit the first type of PEI and the UE supporting the second type of PEI, monitoring the PEI transmitted from the base station.

[0206] The capability indication information indicating the capability of the UE can indicate whether the UE supports PEI and the PEI corresponding to different paging grouping schemes in an explicit indication manner.

[0207] The capability indication information indicating the capability of the UE indicates that the UE supports a first type of PEI and a second type of PEI, so that if the base station can transmit the first type of PEI, the UE can monitor the PEI transmitted from the base station.

[0208] The capability indication information indicating the capability of the UE indicates that the UE supports a second type of PEI, and the capability indication information may implicitly indicate that the UE simultaneously supports a first type of PEI. In this case, if the base station supports the first type of PEI, the UE can monitor the PEI transmitted from the base station.

[0209] In one embodiment, in response to the base station being able to transmit the second type of PEI and the UE supporting the second type of PEI, monitoring the PEI transmitted from the base station includes: In response to the base station being capable of transmitting the second type of PEI corresponding to at least a first type of paging grouping scheme, and the UE supporting the second type of PEI corresponding to at least the first type of paging grouping scheme, monitoring the PEI transmitted from the base station; the base station can transmit the second type PEI corresponding to at least a second type paging grouping scheme, and in response to the UE supporting the second type PEI corresponding to at least the second type paging grouping scheme, monitoring the PEI transmitted from the base station.

[0210] As an example, if a base station can transmit a second type PEI corresponding to a first type paging grouping scheme, a UE that supports a second type PEI corresponding to the first type paging grouping scheme may monitor the PEI and monitor paging messages based on the instructions of the PEI.

[0211] As an example, if a base station can transmit a second type PEI corresponding to a first type paging grouping scheme, if the base station does not support a second type PEI corresponding to the first type paging scheme, the base station may not monitor the PEI, and may revert to a legacy paging scheme and be tuned to monitor paging messages in each PO.

[0212] As an example, if a base station can transmit a second type PEI corresponding to a second type paging grouping scheme, a UE that supports a second type PEI corresponding to the second type paging grouping scheme may monitor the PEI and monitor paging messages based on the instructions of the PEI.

[0213] As an example, if a base station can transmit a second type PEI corresponding to a second type paging grouping scheme, if the base station does not support a second type PEI corresponding to a second type paging group, the base station may not monitor the PEI, and may revert to a legacy paging scheme and be tuned to monitor paging messages in each PO.

[0214] As an example, the base station can send a second type PEI corresponding to a first type paging grouping scheme and a second type paging grouping scheme, and if the UE supports at least a second type PEI corresponding to the first type paging grouping scheme, or supports at least a second type PEI corresponding to the second type paging grouping scheme, the UE can monitor the PEI and monitor paging messages based on the indication of the PEI.

[0215] As an example, the base station may transmit a second type of PEI corresponding to a first type of paging grouping scheme and a second type of paging grouping scheme, and if the UE does not support at least a second type of PE corresponding to the first type of paging grouping scheme and does not support at least a second type of PE corresponding to the second type of paging grouping scheme, the UE may not monitor the PEI and may revert to a legacy paging scheme and be tuned up to monitor paging messages in each PO.

[0216] In one embodiment, the base station can transmit the second type of PEI corresponding to at least the first type of paging grouping scheme, and in response to the UE supporting the second type of PEI corresponding to at least the first type of paging grouping scheme, the step of monitoring the PEI transmitted from the base station includes: The base station can transmit the second type PEI corresponding to at least the first type paging grouping scheme, and in response to the UE having group information of the first type paging grouping scheme, the UE monitors the PEI transmitted from the base station.

[0217] As an example, if a base station can transmit a second type PEI corresponding to a first type paging grouping scheme, a UE that supports a second type PEI corresponding to the first type paging grouping scheme will only monitor the PEI transmitted from the base station if group information of the first type paging grouping scheme is configured; otherwise, the UE will not monitor the PEI.

[0218] As an example, if a base station can transmit a second type of PEI corresponding to a first type of paging grouping scheme and a second type of paging grouping scheme, a UE that only supports a second type of PEI corresponding to the first type of paging grouping scheme will only monitor the PEI transmitted from the base station if group information of the first type of paging grouping scheme is configured; otherwise, the UE will not monitor the PEI.

[0219] For example, if the base station can transmit a second class PEI corresponding to a first class paging grouping scheme and a second class paging grouping scheme, and the UE supports at least a second class PEI corresponding to the first class paging grouping scheme and at least a second class PEI corresponding to the second class paging grouping scheme, the UE can monitor the PEI transmitted from the base station, detect the PEI using the group information of the first class paging grouping scheme and the group information of the second class paging grouping scheme of the UE, respectively, and determine whether the group corresponding to the group information of the first class paging grouping scheme or the paging group corresponding to the group information of the second class paging grouping scheme is woken up by the PO. Here, the group information of the first class paging grouping scheme of the UE may be a group identifier assigned by the core network, and the group information of the first class paging grouping scheme of the UE may be a group identifier determined based on the UE_ID.

[0220] As shown in FIG. 9, this exemplary embodiment provides an information transmission method executable by a core network of a cellular mobile communication system, the method including step 901 .

[0221] In step 901, a first capability indication is received, where the first capability indication indicates whether the UE supports PEI.

[0222] The PEI can be used to indicate that the UE should wake up in a predetermined paging occasion (PO) and monitor for paging messages. Here, the predetermined PO can include one or more POs after the PEI. Whether the PEI is supported includes, but is not limited to, whether the UE should wake up in a predetermined PO based on the indication of the PEI.

[0223] The PEI may be used to wake up all UEs, or may be used to wake up UEs in a predetermined range (e.g., a predetermined group, a predetermined type, etc.). The PEI may include indication information for different groups of UEs to wake up the UEs in different groups. Whether the PEI is supported may include, but is not limited to, whether the PEI that wakes up all UEs is supported, and / or whether the PEI that wakes up UEs in a predetermined range is supported.

[0224] Besides carrying paging information, the PEI may carry other information as an extension.

[0225] The capability indication information may be reported by the base station to the core network, or may be transmitted by the UE to the core network. The UE may carry the capability indication information by NAS signaling or the like.

[0226] After receiving the capability indication information, the core network can determine whether the UE supports PEI. If the UE supports PEI, the core network wakes up the UE to monitor the PO using the PEI supported by the UE. This reduces the situation where the network cannot determine whether the UE supports PEI, and therefore sends a PEI to the UE when the UE does not support PEI, or does not send a PEI to the UE when the UE supports PEI. If the UE sends a PEI to the UE when it does not support PEI, the operating load of the core network will increase; if the UE does not send a PEI to the UE when it supports PEI, the UE cannot receive the PEI, so it needs to frequently wake up to monitor the PO, which causes power loss of the UE.

[0227] In this way, the capability indication information indicates whether the UE supports PEI. The core network can determine the PEI capability of the UE, and since the core network does not determine the PEI capability of the UE, the occurrence of misjudgment of the UE capability is reduced, and the accuracy of the core network's judgment of the UE's PEI capability is improved.

[0228] In one embodiment, the first capability indication information is Whether the UE supports a first type of PEI; It is used to indicate at least one of: whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI.

[0229] The first type of PEI may have one bit that is used to indicate whether to wake up the UE, ie, a PEI that does not carry a paging group.

[0230] Class 1 PEI may subsequently be extended to uses other than paging.

[0231] In essence, supporting a first type of PEI means that the terminal has the capability of monitoring a signal called PEI, where the signal may carry paging or may be used to carry other information.

[0232] The second type of PEI may have several bits that are used to indicate whether to wake up the UE, ie, a paging group PEI.

[0233] The second class of PEI may be a subset of the first class of PEI.

[0234] In one embodiment, the first type of PEI is a common PEI or a non-grouped PEI, which can be used to wake up all UEs or all groups of UEs that need to monitor the same PO; In one embodiment, the second type of PEI is a PEI corresponding to a paging group, which can be used to wake up all UEs in the corresponding paging group that monitor the same PO.

[0235] If the PEI has one bit, i.e., the PEI is a first type PEI, the PEI can be used to wake up all UEs that have received the PEI, i.e., the first type PEI does not distinguish the paging group of the UE.

[0236] When the PEI has multiple bits, i.e., the PEI is a second-class PEI, each bit of the multiple bits can be used to wake up UEs of one or more paging groups, i.e., the second-class PEI distinguishes paging groups of the UE.

[0237] As an example, the PEI may include POnumPerPEI segments, which may be referred to as subgroupsNumPerPO fields, where each segment may correspond to one PO. Each segment includes subgroupsNumPerPO bits, where each bit carries one paging indication used to indicate whether to wake up one or more paging groups at the corresponding PO.

[0238] The PEI is a first type PEI, and the subgroupsNumPerPO field has one paging indication bit, which is used to wake up all UEs that receive the PEI to monitor paging messages in the PO. For example, if the paging indication bit is '1', all UEs that receive the PEI are woken up to monitor paging messages within the PO period, and if the paging indication bit field is '0', it indicates that the UEs stay in a sleep state within the PO period, such as an RRC idle state or an RRC inactive state.

[0239] The PEI is a second type of PEI, and the subgroupsNumPerPO field has multiple bits, each bit can correspond to one paging group, and the UEs in different paging groups decide whether to wake up in the PO period according to the bits corresponding to their paging groups. For example, the subgroupsNumPerPO field has two bits corresponding to two paging groups, respectively, and when one of the bits is "1", the UEs in the paging group corresponding to the bit wake up to monitor paging messages in the PO, and when one of the bits is "0", the UEs in the paging group corresponding to the bit stay in sleep state in the PO.

[0240] The capability indication information may be used to indicate whether the UE supports a first type of PEI and / or a second type of PEI.

[0241] If the capability indication information indicates that the UE supports the first type of PEI, the base station can wake up the UE to monitor the PO using the first type of PEI, reducing the number of situations in which the UE needs to be woken up at each PO and reducing the power loss of the UE.

[0242] If the capability indication information indicates that the UE supports the second type of PEI, the base station can wake up the UE to monitor the PO based on the paging group using the second type of PEI, which reduces the situation where the UE is woken up by the PO when the paging group in which the UE is located is not paged, and reduces the power loss of the UE.

[0243] In this way, the capability indication information indicates whether the UE supports PEI. The base station can determine the PEI capability of the UE, and then, based on the PEI capability of the UE, send the PEI supported by the UE to wake up the UE to monitor the PO, and if there is no need to wake up the UE, do not wake up the UE to monitor, thereby reducing the power loss caused by the UE being woken up frequently.

[0244] In one embodiment, whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0245] The first class of paging grouping scheme and the second class of paging grouping scheme use different schemes to divide the paging groups. The first class of paging grouping scheme and the second class of paging grouping scheme may be implemented by different network nodes. The first class of paging grouping scheme and the second class of paging grouping scheme may be implemented by the same network node.

[0246] The core network or the base station etc. can use different paging grouping schemes to divide the paging groups, thereby generating different types of paging groups. Each paging grouping scheme can divide multiple paging groups. For example, the paging groups can be grouped based on the traffic type of the UE, or the paging groups can be grouped based on the transmission rate of the UE.

[0247] The second type PEI corresponding to at least the first type of paging grouping scheme can be used to indicate whether to wake up the UEs in the paging group corresponding to at least the first type of paging grouping scheme.

[0248] A second class PEI corresponding to at least a second class paging grouping scheme can be used to indicate whether to wake up the UEs in the paging group corresponding to at least the second class paging grouping scheme.

[0249] In one embodiment, the first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes paging grouping schemes that determine a paging group based on a UE identifier.

[0250] The first type of paging grouping scheme may be a scheme in which the core network divides the paging groups based on UE attributes, where the UE attributes may include, but are not limited to, the UE service type, the UE transmission number, the UE transmission bandwidth, etc.

[0251] The second type of paging grouping scheme may be a scheme in which the base station divides the paging group according to UE identification information (UE-ID). For example, the base station may determine the paging group of the UE by using formula (1).

[0252] Each bit of the plurality of bits of the second class PEI can be used to indicate whether to wake up one or more paging groups in a given PO, where the paging groups can include paging groups divided according to a first class paging grouping scheme or paging groups divided according to a second class paging grouping scheme.

[0253] As an example, the second class PEI may have eight bits, of which four bits are used to indicate one of the four paging groups divided using the first class paging grouping scheme, and the other four bits are used to indicate one of the four paging groups divided using the second class paging grouping scheme.

[0254] The second class PEI corresponding to at least the first class paging grouping scheme may include a second class PEI corresponding only to the first class paging grouping scheme, or may include a second class PEI corresponding simultaneously to the first class paging grouping scheme and the second class paging grouping scheme.

[0255] The second class PEI corresponding to at least the second class paging grouping scheme may include a second class PEI corresponding only to the second class paging grouping scheme, or may include a second class PEI corresponding simultaneously to the first class paging grouping scheme and the second class paging grouping scheme.

[0256] The capability indication information indicates whether the UE supports PEIs corresponding to different types of paging groups. The base station can determine the UE's support capability for PEIs corresponding to different paging group types, and the base station can send the PEIs corresponding to the paging group types to the UE to wake up the UE to monitor the PO, thereby reducing the situation in which the UE is woken up in the PO of other types of paging groups and reducing the power loss caused by the UE being woken up in an invalid PO.

[0257] In one embodiment, the step of receiving the first capability indication comprises: receiving, from the UE, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a first type of paging grouping scheme; receiving the first capability indication from a base station, the first capability indication indicating whether the UE supports the first type of PEI; and receiving the first capability indication information from a base station, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme.

[0258] The capability indication information may be transmitted by the UE to the core network. For example, the UE may carry the capability indication information through NAS signaling.

[0259] As an example, whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme can be reported by the UE to the core network via NAS signaling, and thus the capability indication information sent from the core network to the base station can further indicate whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme.

[0260] As an example, whether the terminal supports at least a second type of PEI corresponding to a first type of paging grouping scheme is determined by the base station through an explicit indication based on capability indication information sent from the core network.

[0261] After receiving the capability indication information reported by the UE, the base station can report the capability of the UE to the core network. The capability indication information reported by the UE can be used to indicate whether the UE supports a first type of PEI and / or whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme. Therefore, the capability indication information sent by the base station can also be used to indicate whether the UE supports a first type of PEI and / or whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0262] For example, the UE reports the UE's ability to support PEI to the base station through capability indication information, and the base station further notifies the core network through capability indication information, where the capability indication information can indicate whether the UE supports a first type of PEI and / or whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme. Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme is conveyed to the core network by the terminal through NAS signaling, and therefore does not need to be reported by the base station.

[0263] As an example, the capability indication information can be carried in the following message: UE CAPABILITY INFO INDICATION, RRC INACTIVE TRANSITION REPORT.

[0264] As shown in FIG. 10, this exemplary embodiment provides an information transmission method, and the method further includes at least one of the following steps 1001a, 1001b.

[0265] In step 1001a, send a second UE capability indication to a base station, indicating whether the UE supports a first type of PEI.

[0266] In step 1001b, send a second UE capability indication to a base station, indicating whether the UE supports a second type of PEI.

[0267] Here, step 1001a and / or step 1001b may be performed alone or in combination with step 901.

[0268] The capability indication information may be transmitted to the base station by the core network, and the capability indication information indicates whether the UE supports a first type of PEI, and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0269] Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme can be reported by the UE to the core network by NAS signaling, and thus the capability indication information sent from the core network to the base station can further indicate whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme.

[0270] As an example, whether the terminal supports at least a second type of PEI corresponding to a first type of paging grouping scheme is determined by the base station through an explicit indication based on capability indication information sent from the core network.

[0271] The capabilities of the UE can further be transmitted between base stations. The capability indication can be sent by the opposing base station.

[0272] Specific examples are provided below for all the above embodiments.

[0273] 1. Protect the method in which a base station obtains a terminal's support capability for a paging advance indication (PEI).

[0274] 2. The base station obtains the capability of whether the UE supports the paging grouping means from the capability indication information reported by the terminal.

[0275] a) This information is used as a criterion by the network for paging grouping.

[0276] b) As one embodiment, the paging grouping means capability may be a capability of the terminal reporting that it supports UE-ID paging grouping means, where the capability of supporting UE-ID paging grouping means is that the terminal supports a second type of PEI corresponding to the above-mentioned second type of paging group (the terminal is a capability 2 type terminal).

[0277] c) As one embodiment, the paging grouping means capability may be a capability that the terminal reports supporting the PEI means, where the capability of supporting the PEI is that the terminal supports the above-mentioned first type of PEI. (The terminal is a capability 1 type terminal.) When the first type of PEI is used to carry a non-grouped paging advance instruction, it includes the capability of supporting a non-grouped PEI.

[0278] The signaling design format is as follows: Capabiltiy1-PEI ENUMERATED {true} OPTIONAL, Capabiltiy2-UEID-subgrouping ENUMERATED {true} OPTIONAL.

[0279] Furthermore, there are several different methods for classifying terminal capabilities.

[0280] 1) Method 1 There is no relationship between multiple types of abilities, A terminal reporting capability 1 supports PEI monitoring, A terminal reporting capability 2 supports PEI group paging monitoring, That is, the two capabilities are reported independently.

[0281] 2) Method 2 Support for capability 2 implicitly indicates support for capability 1, i.e. capability 2 is a subset of capability 1. An endpoint may further indicate support for capability 2 in reporting that capability 1 is true (in which case both types of endpoints may be collectively referred to as PEI-supporting endpoints). A terminal may only report that it supports capability 1 (implying that it does not support capability 2). A terminal can report that it supports capability 1 and capability 2, i.e., both flag bits are reported as true; A terminal can simultaneously report that it supports capability 1 and does not support capability 2, and can express that it supports only capability 1 by not reporting the flag, i.e., the absence of the flag bit (flag) implicitly expresses that it does not support capability 2; A terminal can only report that it supports capability 2; reporting support for capability 2 implicitly expresses that the terminal also supports capability 1.

[0282] 3) Method 3 The terminal reports to the base station only the capability (capability 2) of supporting the UE-ID paging grouping means; The base station obtains from the core network whether the terminal supports the paging grouping means of the core network, i.e., whether the terminal has capability 3 from the core network, and the base station combines the two approaches to obtain the capability of the terminal, where the capability of supporting the paging grouping means of the core network is that the terminal supports a second type of PEI corresponding to the above-mentioned first type of paging group.

[0283] The base station obtains that the terminal supports the paging grouping means supporting UE-ID (capability 2) or supports the paging grouping means of the core network (capability 3), i.e., if it supports at least one of them, it supports PEI, i.e., it supports the terminal's capability 1. At this time, the capability of supporting PEI is implicitly expressed by the terminal supporting the UE-ID paging grouping means (capability 2) or supporting the paging grouping means of the core network (capability 3). In other words, if it supports the UE-ID paging grouping means or supports the paging grouping means of the core network, it is expressed that the terminal supports PEI.

[0284] The base station obtains that the terminal does not support the UE-ID paging grouping means (capability 2) and does not support the core network paging grouping means (capability 3), i.e., if it does not support both, it does not support PEI, i.e., it does not support the terminal's capability 1.

[0285] For ease of understanding, whether the terminal supports the paging grouping means represents whether the terminal supports the PEI, because in the R17 version, the paging group information is only transmitted using the PEI, and the PEI is currently mainly used to handle the paging group information.

[0286] For example, the base station may obtain that the terminal supports the UE-ID paging grouping means by the base station being that the support is included in the report of capability indication information received from the UE by the base station; For example, the base station may obtain that the terminal does not support the UE-ID paging grouping means by the base station, and the base station may receive the capability indication information from the UE and the base station may not support the capability indication information, or may not receive the report indication; When the base station obtains that the terminal supports the core network paging grouping means capability (capability 3), it may mean that the base station obtains a group ID from the core network, the core network assigns a group ID to the user, and determines that the terminal necessarily has the capability to support the core network paging grouping means, which is an implicit indication.

[0287] The base station obtaining that the terminal supports the core network paging grouping means capability (capability 3) may be the base station obtaining an indication from the core network indicating whether it supports or not, i.e., reporting whether it supports or not using one indication indication bit.

[0288] 3. Capability reporting for terminal notification to base station 1) Conventional UE capability reporting 2) Reporting using Uplink Assistant Info (UAI).

[0289] In one embodiment, the UE may report the auxiliary information when it wants to leave the connected state, and the reference auxiliary information of the paging group is useful when the terminal leaves the connected state.

[0290] 4. The reporting capability of the terminal can be transmitted between the core network and the base station.

[0291] a) As an example, the reported capabilities of the terminal include capability 1 and capability 2.

[0292] b) As an embodiment, the UE capabilities are reported to the base station, and the base station notifies the core network via a UE CAPABILITY INFO INDICATION (capability 1 or capability 2), and capability 3 does not need to be reported directly to the base station since it is transmitted to the core network by the terminal via NAS.

[0293] In addition, the UE may report its capabilities to the base station via the following messages: RRC INACTIVE TRANSITION REPORT

[0294] c) In one embodiment, the core network transmits the paging message to the base station.

[0295] Indication method: The paging message carries UE capability information (capability 1 and / or capability 2 or capability 3), of which capability 3 is transmitted by the terminal to the core network by the NAS.

[0296] Capability 3 can be indicated in both explicit and implicit ways.

[0297] The implicit indication means that the paging message mentioned above includes paging group information assigned by the core network, which indicates that the terminal has capability 3.

[0298] d) In one embodiment, the core network conveys the UE capabilities to the base station in the following message: INITIAL CONTEXT SETUP REQUEST, UE CONTEXT MODIFICATION REQUEST, HANDOVER REQUEST, PATH SWITCH REQUEST ACKNOWLEDGE.

[0299] 5, 1, the capabilities of the terminal, Capability 1 and / or Capability 2, and whether the terminal supports the core network paging grouping means (Capability 3), can be communicated between the base stations. Scene 1: When a handover occurs, the base station obtains the capability of the terminal from the handover request message. Scene 2: When a cell reselection occurs for an inactive user, the base station acquires the capability of the terminal from the anchor base station.

[0300] a) As one embodiment, the terminal capabilities can be carried in the UE's context response.

[0301] b) In one embodiment, an indication of UE capabilities is included in an Access Network Paging (RAN Paging) message; The target base station (opposing base station) can directly acquire capability 1, The target base station can directly acquire capability 2, The target base station can directly acquire capability 3, The target base station can directly obtain the support of capability 2 or capability 3 to know the support of capability 1; The target base station can directly obtain that it does not support capability 2 and supports capability 3, and can infer that it does not support capability 1; When the core network group ID is carried, it is implicit that the terminal supports capability 3.

[0302] 6. The terminal core network determines the following actions based on the terminal capability and the base station's paging means support capability:

[0303] a) Inform the UE of the base station's paging means support capability through public or dedicated signaling.

[0304] b) A terminal with PEI support capability monitors the PEI based on the base station capability, and monitors the PEI or paging message based on its own capability (there are terminals with capability 1, terminals with capability 2, terminals with capability 3, and terminals with capabilities 2 and 3 simultaneously in the network).

[0305] Base station capabilities are divided into broadcasting non-grouped PEIs or grouped PEIs, ie, first class base station capabilities and second class base station capabilities. Case 1: The base station sends a non-grouped PEI: a terminal supporting capability 1, a terminal supporting capability 2, a terminal supporting capability 3, and a terminal having capability 2 and capability 3 at the same time all need to be monitored and are woken up; A terminal that only supports capability 1 supports the PEI of the corresponding type, and then uses the PEI to monitor for paging messages (i.e., is woken up by the PEI); or a terminal supporting capabilities 2 and / or 3 supports the PEI of the type, and then monitors for paging messages using the PEI (i.e., is woken up by the PEI); Monitoring paging messages using the PEI means whether to monitor the subsequent PO based on the instruction of the PEI, and not monitoring paging messages based on the PEI means not whether to monitor the subsequent PO based on the instruction of the PEI, but directly monitoring the PO, that is, the legacy paging monitoring method. A terminal that reports support for capability 1 supports the PEI of that type and then uses the PEI to monitor for paging messages (i.e., is woken up by the PEI); Or a terminal that supports capability 1 and also supports capability 2 / 3 supports the PEI of the type, and also monitors paging using the PEI (i.e., is woken up by the PEI); A terminal that is known to support capability 1 by supporting capability 2 or by supporting capability 3 monitors for paging messages using the PEI (i.e., is woken up by the PEI); Terminals that do not support capability 2 and that are therefore inferred to not support capability 1 by not supporting capability 3 then revert to the legacy paging scheme.

[0306] Case 2: The base station transmits the grouped PEI: the base station capabilities are divided to deliver the core network grouped PEI, the UE-ID grouped PEI, or to simultaneously support the core network grouped PEI and the UE-ID grouped PEI, which are called the second type of base station capabilities, the third type of base station capabilities, and the fourth type of base station capabilities, respectively.

[0307] A. A user that only supports type 1 of capability cannot support the PEI of that type, and in this case, the grouped PEI cannot be used to monitor paging messages, i.e., the user must revert to the legacy monitoring mode (i.e., no PEI monitoring is required).

[0308] How to determine that a terminal supports only capability 1 can be considered on a case-by-case basis. 1) Method 1, reporting alone only supports capability 1; 2) Method 2, which supports only capability 1 based on the above description; 3) The terminal does not support method 3, capability 2 or capability 3.

[0309] A terminal having paging grouping capability (a terminal supporting capability 2 or a terminal supporting capability 3) monitors the PEI, specifically: B. For base stations that only support UE-ID grouping mode (class 2 base station capabilities), A terminal that supports capability 2 can monitor paging messages using the grouping PEI (regardless of whether it is assigned a group ID by the core network) and must check whether the group to which it belongs is woken up; A terminal user that does not support the UE-id grouping method, such as a UE capability 3 terminal, cannot support this type of PEI. In this case, the grouped PEI cannot be used to monitor paging messages, that is, the user must return to the legacy monitoring mode (i.e., no PEI monitoring is required).

[0310] C. For base stations that only support the CN-assgin grouping mode (class 3 base station capability), A terminal that supports capability 3 can monitor paging messages using the grouped PEI, and a terminal that does not have capability 3 does not monitor the PEI, Furthermore, a user who is assigned only a group ID in the core network needs to decide whether or not the group to which he or she belongs is woken up, whereas a user who is not assigned a group ID does not need to monitor the PEI. Even if a user who is not assigned a group ID in the core network has the capability to support capability 3, he or she does not need to monitor the PEI, which simplifies the flow and saves power.

[0311] A terminal that only supports capability 2 (i.e., a terminal that only supports the UE-id grouping method and does not support the CN grouping capability) cannot support this type of PEI, and in this case, the grouped PEI cannot be used to monitor paging messages, i.e., the user must return to the legacy monitoring mode (i.e., no PEI monitoring is required).

[0312] In this way, when a terminal obtains the capabilities of a base station and finds that the type of paging PEI delivered by the base station does not match the capabilities it supports, there is no need to perform PEI monitoring, which simplifies the flow and saves power.

[0313] D. For base stations that support CN-assgin grouping mode + UE-ID grouping mode (base station capability of the fourth type), A terminal user that supports the UE-ID grouping method or the CN grouping method needs to use the grouping PEI to monitor paging messages and check whether the group to which it belongs is woken up; Furthermore, a user that is assigned only a groupID in the core network needs to check whether the group to which it belongs is woken up, and a user that is not assigned a groupID needs to monitor the PEI if it has capability 2 at the same time, otherwise it does not need to monitor the PEI.

[0314] As shown in FIG. 11, an embodiment of the present invention further provides an information transmission device applied to a base station of a cellular mobile radio communication system, the device 100 comprising: The first receiving module 110 includes a first receiving module configured to receive first capability indication information, the first capability indication information indicating whether a user equipment (UE) supports a paging advance indication (PEI).

[0315] In one embodiment, the first capability indication information is Whether the UE supports a first type of PEI; It is used to indicate at least one of: whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI.

[0316] In one embodiment, whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0317] In one embodiment, the first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes paging grouping schemes that determine a paging group based on a UE identifier.

[0318] In one embodiment, the apparatus comprises: a first determination module 120 configured to determine that the UE supports the first type of PEI in response to first capability indication information indicating that the UE supports the second type of PEI; and a second determination module 130 configured to determine that the UE does not support the first class PEI in response to the first capability indication information indicating that the UE does not support at least a second class PEI corresponding to at least a first class paging grouping scheme and a second class PEI corresponding to at least a second class paging grouping scheme.

[0319] In one embodiment, the first receiving module 110 specifically includes: receiving the first capability indication information sent from the UE, the first capability indication information indicating whether the UE supports the first type of PEI; receiving the first capability indication information sent from the UE, the first capability indication indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; receiving the first capability indication sent from a core network; and receiving the first capability indication information transmitted from an opposite base station.

[0320] In one embodiment, the first receiving module 110 specifically includes: In response to receiving group information of the first type of paging grouping scheme of the UE transmitted from the core network, the UE is configured to determine that the UE supports at least the second type of PEI corresponding to the first type of paging grouping scheme.

[0321] In one embodiment, the apparatus comprises: Sending second capability indication information to an opposite base station, the second capability indication information indicating whether the UE supports the first type of PEI; Sending second capability indication information to an opposite base station, the second capability indication information indicating whether the UE supports the second type of PEI; Sending second capability indication information to a core network, the second capability indication indicating whether the UE supports the first type of PEI; and sending, to a core network, second capability indication information indicating whether the UE supports at least the second type of PEI corresponding to at least a second type of paging grouping scheme.

[0322] In one embodiment, the apparatus comprises: The second transmitting module 150 further includes a second transmitting module 150 configured to transmit third capability indication information to the UE, the third capability indication information being used by the UE to determine a transmittable PEI of a base station.

[0323] In one embodiment, the third capability indication information indicates that the UE is capable of transmitting the base station: Class 1 PEI and a second class PEI corresponding to a first class paging grouping scheme, the first class PEI being different from the second class PEI; The second class PEI corresponding to the second class paging grouping method; The PEI is used to determine at least one of the first class of paging grouping scheme and the second class of PEI corresponding to the second class of paging grouping scheme.

[0324] As shown in FIG. 12, an embodiment of the present invention further provides an information transmission device applied to a UE of a cellular mobile radio communication system, the device 200 comprising: A third sending module 210 configured to send first capability indication information, the first capability indication information including a third sending module 210 indicating whether a user equipment (UE) supports a paging advance indication (PEI).

[0325] In one embodiment, the first capability indication information is Whether the UE supports a first type of PEI; It is used to indicate at least one of: whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI.

[0326] In one embodiment, whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0327] In one embodiment, the first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes paging grouping schemes that determine a paging group based on a UE identifier.

[0328] In one embodiment, the third sending module 210 specifically includes: sending the first capability indication information to a base station, the first capability indication information indicating whether the UE supports the first type of PEI; Sending the first capability indication information to a base station, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; and sending first capability indication information to a core network, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a first type of paging grouping scheme.

[0329] In one embodiment, the apparatus comprises: The second receiving module 220 further includes a second receiving module configured to receive second capability indication information from a base station, the second capability indication information being used by the UE to determine a transmittable PEI of the base station.

[0330] In one embodiment, the second capability indication information indicates the UE's transmittable capability of the base station. Class 1 PEI and a second class PEI corresponding to a first class paging grouping scheme, the first class PEI being different from the second class PEI; The second class PEI corresponding to the second class paging grouping method; The PEI is used to determine at least one of the first class of paging grouping scheme and the second class of PEI corresponding to the second class of paging grouping scheme.

[0331] In one embodiment, the apparatus comprises: The UE further includes a third determining module 230 configured to determine whether to monitor a PEI transmitted from the base station based on a PEI supported by the UE.

[0332] In one embodiment, the third determination module 230 specifically comprises: determining, in response to the UE supporting a transmittable PEI of the base station, to monitor a PEI transmitted from the base station; and in response to the UE determining that it does not support a transmittable PEI of the base station, determining not to monitor a PEI transmitted from the base station.

[0333] In one embodiment, the second determination module 230 specifically comprises: determining that the base station can transmit a first type of PEI and in response to the UE supporting the first type of PEI, monitoring a PEI transmitted from the base station; and determining, in response to the UE supporting the second type PEI, to monitor the PEI transmitted from the base station.

[0334] In one embodiment, the second determination module 230 specifically comprises: determining that the base station can transmit the first type PEI, and in response to the UE supporting the first type PEI and the second type PEI, monitoring a PEI transmitted from the base station; and determining, in response to the base station being capable of transmitting the first type of PEI and the UE supporting the second type of PEI, to monitor a PEI transmitted from the base station.

[0335] In one embodiment, the second determination module 230 specifically comprises: determining that the base station can transmit the second type of PEI corresponding to at least a first type of paging grouping scheme, and in response to the UE supporting the second type of PEI corresponding to at least the first type of paging grouping scheme, to monitor a PEI transmitted from the base station; and determining, in response to the UE supporting the second class PEI corresponding to at least the second class paging grouping scheme, to monitor the PEI transmitted from the base station.

[0336] In one embodiment, the second determination module 230 specifically comprises: The base station can transmit the second type PEI corresponding to at least the first type paging grouping scheme, and the UE is configured to determine to monitor the PEI transmitted from the base station in response to having group information of the first type paging grouping scheme.

[0337] As shown in FIG. 13, an embodiment of the present invention further provides an information transmission device applied to a core network of a cellular mobile radio communication system, the device 300 comprising: A third receiving module 310 configured to receive first capability indication information, the first capability indication information including an indication of whether a user equipment (UE) supports a paging advance indication (PEI).

[0338] In one embodiment, the first capability indication information is Whether the UE supports a first type of PEI; It is used to indicate at least one of: whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI.

[0339] In one embodiment, whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0340] In one embodiment, the first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes paging grouping schemes that determine a paging group based on a UE identifier.

[0341] In one embodiment, the third receiving module 310 is receiving, from the UE, the first capability indication indicating whether the UE supports at least the second type of PEI corresponding to a first type of paging grouping scheme; receiving the first capability indication from a base station, the first capability indication indicating whether the UE supports the first type of PEI; receiving the first capability indication information from a base station indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme.

[0342] In one embodiment, the apparatus comprises: Sending second UE capability indication information to a base station, the second UE capability indication information indicating whether the UE supports a first type of PEI; The fourth sending module 320 is configured for at least one of: sending second UE capability indication information to a base station, the second UE capability indication information indicating whether the UE supports a second type of PEI.

[0343] In 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, etc., are implemented in one or more central processing units (CPU, Central Processing Unit), graphics processing units (GPU, Graphics Processing Unit), baseband processors (BP, Baseband Processors), application specific integrated circuits (ASIC, Application Specific Integrated Circuits), DSPs, programmable logic devices (PLD, Programmable Logic Devices), complex programmable logic devices (CPLD, Complex Programmable Logic Devices), field programmable gate arrays (FPGA, Field -Programmable Gate Arrays), general purpose processors, controllers, microcontrollers (MCU, Micro Controller Units), microprocessors, or other electronic devices and used to perform the method.

[0344] 14 is a block diagram of an apparatus 3000 for transmitting information according to one exemplary embodiment. For example, the apparatus 3000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet, a medical device, a fitness device, a personal digital assistant, etc.

[0345] As shown in FIG. 14, the device 3000 may include one or more of a processing component 3002, a memory 3004, a power component 3006, a multimedia component 3008, an audio component 3010, an input / output (I / O) interface 3012, a sensor component 3014, and a communication component 3016.

[0346] The processing component 3002 generally controls the overall operation of the device 3000, such as operations related to display, phone calls, data communication, camera operation, and recording operation. The processing component 3002 may include one or more processors 3020 to execute instructions to complete all or some steps of the above method. The processing component 3002 may also include one or more modules to facilitate interaction between the processing component 3002 and other components. For example, the processing component 3002 may include a multimedia module to facilitate interaction between the multimedia component 3008 and the processing component 3002.

[0347] The memory 3004 is configured to store various data to support operation of the device 3000. Examples of such data include instructions for any application programs or methods operating on the device 3000, contact data, phone book data, messages, pictures, videos, etc. The memory 3004 can be implemented by any type of volatile or non-volatile storage device, such as, for example, a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic disk, or an optical disk, or a combination thereof.

[0348] The power component 3006 provides power to the various components of the device 3000. The power component 3006 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 3000.

[0349] The multimedia component 3008 includes a screen that provides an output interface between the device 3000 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). When the screen includes a touch panel, it can be implemented as a touch screen that receives input signals from a user. The touch panel includes one or more touch sensors to detect touches, slides, and gestures on the touch panel. The touch sensors can detect not only the boundaries of a touch or slide motion, but also the duration and pressure associated with the touch or slide motion. In some embodiments, the multimedia component 3008 includes one front camera and / or a rear camera. When the device 3000 is in an operational mode, such as a photo mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can have a specific optical lens system, or focal length, and optical zoom function.

[0350] The audio component 3010 is configured to output and / or input audio signals. For example, the audio component 3010 includes one microphone (MIC) configured to receive external audio signals when the device 3000 is in an operation mode, such as a call mode, a record mode, and a voice recognition mode. The received audio signals can be further stored in the memory 3004 or transmitted via the communication component 3016. In some embodiments, the audio component 3010 further includes one speaker for outputting audio signals.

[0351] The I / O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0352] The sensor component 3014 includes one or more sensors for providing status assessment of each aspect of the device 3000. For example, the sensor component 3014 can detect the on / off state of the device 3000, the relative positioning of the components, e.g., the display and keyboard of the device 3000, and the sensor component 3014 can further detect the position change of the device 3000 or one of the components of the device 3000, whether or not the device 3000 is in contact with a user, the orientation or acceleration / deceleration of the device 3000, and the temperature change of the device 3000. The sensor component 3014 can include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor component 3014 can further include an optical sensor used for imaging applications, e.g., a CMOS or CCD image sensor. In some embodiments, the sensor component 3014 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0353] The communication component 3016 is configured to facilitate wired or wireless communication between the device 3000 and other devices. The device 3000 can access a wireless network based on a communication standard, such as Wi-Fi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 3016 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 3016 further includes a Near Field Communication (NFC) module to facilitate short-range communication. 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.

[0354] In an exemplary embodiment, the apparatus 3000 is implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processors (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components that can be used to perform the methods described above. In an exemplary embodiment, a non-transitory computer readable storage medium containing instructions is further provided, such as a memory 3004 containing instructions, which can be executed by the processor 3020 of the device 3000 to complete the method. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

[0355] Those skilled in the art will readily contemplate other embodiments of the embodiments of the present invention from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modifications, uses or adaptations of the embodiments of the present invention that follow the general principles of the embodiments of the present invention and include means well known or commonly used in the art that are not disclosed in the embodiments of the present disclosure. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the embodiments of the present invention being indicated by the following claims.

[0356] It should be understood that the embodiments of the present invention are not limited to the exact construction described above and illustrated in the drawings, and that various modifications and changes can be made without departing from the scope thereof, which is limited only by the appended claims.

Claims

1. 1. A method of information transmission performed by a base station, comprising: receiving a first capability indication, the first capability indication indicating whether a user equipment (UE) supports a Paging Advance Indication (PEI); Method of information transmission.

2. The first capability indication information is Whether the UE supports a first type of PEI; whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI; The method of claim 1.

3. Whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme. The method of claim 2.

4. The first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes a paging grouping scheme that determines a paging group based on a UE identifier; The method according to claim 3.

5. determining that the UE supports the first type of PEI in response to first capability indication information indicating that the UE supports the second type of PEI; and determining that the UE does not support the first class PEI in response to the first capability indication information indicating that the UE does not support at least a second class PEI corresponding to a first class paging grouping scheme and at least a second class PEI corresponding to a second class paging grouping scheme. The method of claim 2.

6. The step of receiving the first capability indication includes: receiving the first capability indication information sent from the UE, the first capability indication indicating whether the UE supports the first type of PEI; receiving the first capability indication information sent from the UE, the first capability indication indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; receiving the first capability indication information sent from a core network; receiving the first capability indication information transmitted from an opposite base station; The method of claim 2.

7. The step of receiving the first capability indication information transmitted from the core network includes: In response to receiving group information of the first type of paging grouping scheme of the UE transmitted from the core network, determining that the UE supports at least the second type of PEI corresponding to the first type of paging grouping scheme. The method according to claim 6.

8. sending second capability indication information to an opposing base station, the second capability indication information indicating whether the UE supports the first type of PEI; sending second capability indication information to an opposing base station, the second capability indication information indicating whether the UE supports the second type of PEI; sending a second capability indication to a core network, the second capability indication indicating whether the UE supports the first type of PEI; and sending, to a core network, second capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme. The method of claim 2.

9. and transmitting third capability indication information to the UE, the third capability indication information being used by the UE to determine a transmittable PEI of the base station. The method according to any one of claims 1 to 8.

10. The third capability indication information indicates a capability that the UE can transmit to the base station. PEI of Class 1; a second class of PEI corresponding to a first class of paging grouping scheme, the first class of PEI being different from a second class of PEI; The second class PEI corresponding to the second class paging grouping method; used to determine at least one of the first class of paging grouping schemes and the second class of PEIs corresponding to the second class of paging grouping schemes; 10. The method of claim 9.

11. 1. A method of information transmission performed by a user equipment (UE), comprising: transmitting first capability indication information, the first capability indication information including indicating whether the UE supports a Paging Advance Indication (PEI); Method of information transmission.

12. The first capability indication information is Whether the UE supports a first type of PEI; whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI; The method of claim 11.

13. Whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme. The method of claim 12.

14. The first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes a paging grouping scheme that determines a paging group based on a UE identifier; The method of claim 13.

15. The step of transmitting the first capability indication information includes: sending the first capability indication information to a base station, the first capability indication information indicating whether the UE supports the first type of PEI; sending the first capability indication information to a base station, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; and transmitting a first capability indication to a core network, the first capability indication indicating whether the UE supports at least the second type of PEI corresponding to a first type of paging grouping scheme. The method of claim 12.

16. receiving second capability indication information from a base station, the second capability indication information being used by the UE to determine a transmittable PEI of the base station; The method according to any one of claims 11 to 15.

17. The second capability indication information indicates a capability that the UE can transmit to the base station. PEI of Class 1; a second class of PEI corresponding to a first class of paging grouping scheme, the first class of PEI being different from a second class of PEI; The second class PEI corresponding to the second class paging grouping method; used to determine at least one of the first class of paging grouping schemes and the second class of PEIs corresponding to the second class of paging grouping schemes; 17. The method of claim 16.

18. The method further includes determining whether to monitor a PEI transmitted from the base station based on a PEI supported by the UE.

17. The method of claim 16.

19. The step of determining whether to monitor a PEI transmitted from the base station based on a PEI supported by the UE includes: In response to the UE determining that it supports a transmittable PEI of the base station, monitoring a PEI transmitted from the base station; and in response to the UE determining that it does not support the transmittable PEI of the base station, not monitoring a PEI transmitted from the base station.

20. The method of claim 18.

20. In response to the UE determining that it supports a transmittable PEI of the base station, monitoring a PEI transmitted from the base station includes: monitoring a PEI transmitted from the base station in response to the base station being capable of transmitting a first type of PEI and the UE supporting the first type of PEI; the base station is capable of transmitting a second type of PEI, and in response to the UE supporting the second type of PEI, monitoring the PEI transmitted from the base station.

20. The method of claim 19.

21. The step of monitoring a PEI transmitted from the base station in response to the base station being capable of transmitting the first type of PEI and the UE supporting the first type of PEI, includes: monitoring a PEI transmitted from the base station in response to the base station being capable of transmitting the first type PEI and the UE supporting the first type PEI and the second type PEI; and b. in response to the base station being able to transmit the first type of PEI and the UE supporting the second type of PEI, monitoring the PEI transmitted from the base station.

21. The method of claim 20.

22. The step of monitoring a PEI transmitted from the base station in response to the base station being capable of transmitting the second type of PEI and the UE supporting the second type of PEI, comprises: monitoring a PEI transmitted from the base station in response to the base station being capable of transmitting the second class PEI corresponding to at least a first class paging grouping scheme, and the UE supporting the second class PEI corresponding to at least the first class paging grouping scheme; the base station is capable of transmitting the second class of PEIs corresponding to at least a second class of paging grouping schemes, and in response to the UE supporting the second class of PEIs corresponding to at least the second class of paging grouping schemes, monitoring the PEIs transmitted from the base station.

21. The method of claim 20.

23. The step of monitoring the PEI transmitted from the base station in response to the base station being capable of transmitting the second class PEI corresponding to at least the first class paging grouping scheme, and the UE supporting the second class PEI corresponding to at least the first class paging grouping scheme, includes: The base station can transmit the second type of PEI corresponding to at least the first type of paging grouping scheme, and in response to the UE having group information of the first type of paging grouping scheme, the UE monitors the PEI transmitted from the base station.

23. The method of claim 22.

24. A method of information transmission performed by a core network, comprising: receiving a first capability indication, the first capability indication indicating whether a user equipment (UE) supports a Paging Advance Indication (PEI); Method of information transmission.

25. The first capability indication information is Whether the UE supports a first type of PEI; whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI; 25. The method of claim 24.

26. Whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

26. The method of claim 25.

27. The first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes a paging grouping scheme that determines a paging group based on a UE identifier; 27. The method of claim 26.

28. The step of receiving first capability indication information includes: receiving the first capability indication from the UE, the first capability indication indicating whether the UE supports at least the second type of PEI corresponding to a first type of paging grouping scheme; receiving the first capability indication from a base station, the first capability indication indicating whether the UE supports the first type of PEI; receiving the first capability indication information from a base station, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; 26. The method of claim 25.

29. sending a second UE capability indication to a base station, the second UE capability indication indicating whether the UE supports a first type of PEI; and sending to a base station second UE capability indication information indicating whether the UE supports a second type of PEI. The method according to any one of claims 25 to 28.

30. An information transmission device, a first receiving module configured to receive first capability indication information, the first capability indication information indicating whether a user equipment (UE) supports a paging advance indication (PEI); Information transmission device.

31. The first capability indication information is Whether the UE supports a first type of PEI; whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI; 31. The apparatus of claim 30.

32. Whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

32. The apparatus of claim 31.

33. The first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes a paging grouping scheme that determines a paging group based on a UE identifier; 33. The apparatus of claim 32.

34. a first determination module configured to determine that the UE supports the first type of PEI in response to first capability indication information indicating that the UE supports the second type of PEI; and a second determination module configured to determine that the UE does not support the first class PEI in response to the first capability indication information indicating that the UE does not support at least a second class PEI corresponding to a first class paging grouping scheme and at least a second class PEI corresponding to a second class paging grouping scheme.

32. The apparatus of claim 31.

35. The first receiving module includes: receiving the first capability indication information transmitted from the UE, the first capability indication indicating whether the UE supports the first type of PEI; receiving the first capability indication information sent from the UE, the first capability indication indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; receiving the first capability indication information transmitted from a core network; receiving the first capability indication information transmitted from an opposite base station; 32. The apparatus of claim 31.

36. The first receiving module includes: In response to receiving group information of the first type of paging grouping scheme of the UE transmitted from the core network, the UE is configured to determine that the UE supports at least the second type of PEI corresponding to the first type of paging grouping scheme.

36. The apparatus of claim 35.

37. Sending second capability indication information to an opposite base station, the second capability indication information indicating whether the UE supports the first type of PEI; Sending second capability indication information to an opposite base station, the second capability indication information indicating whether the UE supports the second type of PEI; sending a second capability indication to a core network indicating whether the UE supports the first type of PEI; and transmitting, to a core network, second capability indication information indicating whether the UE supports at least the second type of PEI corresponding to at least a second type of paging grouping scheme.

32. The apparatus of claim 31.

38. A second sending module configured to send third capability indication information to the UE, the third capability indication information being used by the UE to determine a transmittable PEI of a base station.

38. Apparatus according to any one of claims 31 to 37.

39. The third capability indication information indicates a capability that the UE can transmit to the base station. PEI of Class 1; a second class of PEI corresponding to a first class of paging grouping scheme, the first class of PEI being different from a second class of PEI; The second class PEI corresponding to the second class paging grouping method; used to determine at least one of the first class of paging grouping schemes and the second class of PEIs corresponding to the second class of paging grouping schemes; 39. The apparatus of claim 38.

40. An information transmission device, a third sending module configured to send first capability indication information, the first capability indication information including a third sending module indicating whether a user equipment (UE) supports a paging advance indication (PEI); Information transmission device.

41. The first capability indication information is Whether the UE supports a first type of PEI; whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI; 41. The apparatus of claim 40.

42. Whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

42. The apparatus of claim 41.

43. The first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes a paging grouping scheme that determines a paging group based on a UE identifier; 43. The apparatus of claim 42.

44. The third transmission module includes: sending the first capability indication information to a base station, the first capability indication information indicating whether the UE supports the first type of PEI; sending the first capability indication information to a base station, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; and transmitting first capability indication information to a core network, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a first type of paging grouping scheme.

42. The apparatus of claim 41.

45. A second receiving module configured to receive second capability indication information from a base station, the second capability indication information being used by the UE to determine a transmittable PEI of the base station.

42. The apparatus of claim 41.

46. The second capability indication information indicates a capability that the UE can transmit to the base station. PEI of Class 1; a second class of PEI corresponding to a first class of paging grouping scheme, the first class of PEI being different from a second class of PEI; The second class PEI corresponding to the second class paging grouping method; used to determine at least one of the first class of paging grouping schemes and the second class of PEIs corresponding to the second class of paging grouping schemes; 46. ​​The apparatus of claim 45.

47. and a third determining module configured to determine whether to monitor a PEI transmitted from the base station based on a PEI supported by the UE.

46. ​​The apparatus of claim 45.

48. The third determination module: determining, in response to the UE supporting a transmittable PEI of the base station, to monitor a PEI transmitted from the base station; and in response to determining that the UE does not support a transmittable PEI of the base station, determining not to monitor a PEI transmitted from the base station.

48. The apparatus of claim 47.

49. The third determination module: determining that the base station can transmit a first type of PEI and in response to the UE supporting the first type of PEI, monitoring a PEI transmitted from the base station; and determining, in response to the UE supporting the second type PEI, to monitor the PEI transmitted from the base station.

49. The apparatus of claim 48.

50. The third determination module: determining that the base station can transmit the first type PEI and that the UE supports the first type PEI and the second type PEI, responsive to which the UE monitors a PEI transmitted from the base station; determining that the base station can transmit the first type of PEI and that the UE supports the second type of PEI, and monitors a PEI transmitted from the base station in response to the second type of PEI being supported by the UE; 49. The apparatus described in 49.

51. The third determination module: determining that the base station can transmit the second class of PEIs corresponding to at least a first class of paging grouping schemes, and in response to the UE supporting the second class of PEIs corresponding to at least the first class of paging grouping schemes, monitor a PEI transmitted from the base station; and determining, in response to the UE supporting the second class PEI corresponding to at least the second class paging grouping scheme, to monitor the PEI transmitted from the base station.

50. The apparatus of claim 49.

52. The third determination module: The base station can transmit the second type of PEI corresponding to at least the first type of paging grouping scheme, and the UE is configured to determine to monitor the PEI transmitted from the base station in response to having group information of the first type of paging grouping scheme.

52. The apparatus of claim 51.

53. An information transmission device, a third receiving module configured to receive first capability indication information, the first capability indication information indicating whether a user equipment (UE) supports a paging advance indication (PEI); Information transmission device.

54. The first capability indication information is Whether the UE supports a first type of PEI; whether the UE supports a second class of PEI, and the first class of PEI is different from the second class of PEI; 54. The apparatus of claim 53.

55. Whether the UE supports the second type of PEI is determined by: Whether the UE supports at least a second type of PEI corresponding to a first type of paging grouping scheme; and whether the UE supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

55. The apparatus of claim 54.

56. The first type of paging grouping scheme includes a paging grouping scheme in which a paging group is determined by a core network; The second class of paging grouping schemes includes a paging grouping scheme that determines a paging group based on a UE identifier; 56. The apparatus of claim 55.

57. The third receiving module includes: receiving, from the UE, the first capability indication indicating whether the UE supports at least the second type of PEI corresponding to a first type of paging grouping scheme; receiving the first capability indication from a base station indicating whether the UE supports the first type of PEI; receiving the first capability indication information from a base station, the first capability indication information indicating whether the UE supports at least the second type of PEI corresponding to a second type of paging grouping scheme; 55. The apparatus of claim 54.

58. Sending a second UE capability indication to a base station, the second UE capability indication indicating whether the UE supports a first type of PEI; and transmitting second UE capability indication information to a base station, the second UE capability indication information indicating whether the UE supports a second type of PEI.

58. Apparatus according to any one of claims 54 to 57.

59. A communication device comprising: A communication device including a processor, a memory, and an execution program stored in the memory and executable by the processor, the communication device performing steps of an information transmission method according to any one of claims 1 to 10, claims 11 to 23, and claims 24 to 29 when the processor executes the execution program. Communication device.

60. A storage medium on which an executable program is stored, The executable program, when executed by a processor, implements the steps of the information transmission method according to any one of claims 1 to 10, claims 11 to 23, or claims 24 to 29. storage medium.

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