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 technology, but is not limited to the field of wireless communication technology, 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 within 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 are more likely to be falsely woken up, which generates many false alarms and causes excessive 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 the step of indicating whether a user equipment (UE) supports a pre-paging 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: Sending first capability indication information includes indicating whether the UE supports a pre-paging indication (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 the step of indicating whether a user equipment (UE) supports a pre-paging indication (PEI).

[0007] According to a fourth aspect of an embodiment of the present disclosure, there is provided an information transmission device, wherein the device comprises: and a first receiving module configured to receive first capability indication information, the first capability indication information indicating whether a user equipment (UE) supports a pre-paging indication (PEI).

[0008] According to a fifth aspect of an embodiment of the present disclosure, there is provided an information transmission device, wherein the device comprises: and a third sending module configured to send first capability indication information, the first capability indication information indicating whether a user equipment (UE) supports a pre-paging 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 pre-paging 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 executable program stored in the memory and executable by the processor, wherein when the processor executes the executable program, the communication device apparatus performs steps of the information transmission method described in the first aspect, the second aspect, or the third aspect.

[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 the steps of the information transmission method described in the first, second or third aspect when executed by a processor. [Effects 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 the 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 base station's determination of the UE's PEI capability.

[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 embodiments of the present disclosure. [Brief explanation of the drawings]

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

[0015] Illustrative embodiments will now be described in detail, examples of which are illustrated 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 illustrative examples 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 set forth in the claims.

[0016] Terms used in the embodiments of the present disclosure are used only to describe particular embodiments and are not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. The term "and / or" as used herein should be understood to mean the inclusion of any and 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 these terms are not limited to these terms. These terms are used only to distinguish between pieces of information of the same type. For example, first information may be referred to as second information, and similarly, second information may be referred to as 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] 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] The terminal 11 may 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). The terminal 11 may be an Internet of Things terminal, such as a sensor device, a mobile phone (also called a "cellular" phone), or a computer with an Internet of Things terminal. The terminal 11 may be a fixed, portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted device. Examples of the terminal 11 include a station (STA), subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment (UE). Alternatively, the terminal 11 may be an unmanned aerial vehicle (UAV) device. Alternatively, the terminal 11 may be an in-vehicle device, such as a trip computer with wireless communication capabilities, or a wireless communication device with an external trip computer, or the terminal 11 may be a roadside device, such as a street lamp, traffic light, or other roadside device with 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 a Long Term Evolution (LTE) system, or the wireless communication system may be a 5G system, also called a new air interface (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a next-generation system of a 5G system. Here, the access network in the 5G system may be called a New Generation-Radio Access Network (NG-RAN) or an MTC system.

[0021] Here, the base station 12 may be an evolved base station (eNB) employed in a 4G system. Alternatively, the base station 12 may be a base station (gNB) employing a centralized-distributed architecture in a 5G system. When the base station 12 employs a centralized-distributed architecture, it generally includes a central unit (CU) and at least two distributed units (DUs). The centralized unit is provided with protocol stacks for a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Medium Access Control (MAC) layer, and the distributed units are provided with a physical (PHY) layer protocol stack. The embodiments of the present disclosure are not limited to specific implementations 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 may further establish an E2E (End to End) connection, such as V2V (Vehicle to Vehicle) communication, V2I (Vehicle to Infrastructure) communication, and V2P (Vehicle to Pedestrian) 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] The multiple base stations 12 are each 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, a mobility management entity (MME) in an evolved packet core network (EPC). Alternatively, the network management device may be another core network device, for example, a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber server (HSS). The implementation form of the network management device 13 is not limited in the embodiments of the present disclosure.

[0026] Acting entities according to 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 in which all UEs are woken up within a PO. Group information may be included in a paging DCI (Downlink Control Information) or a paging earlier indication (PEI). UEs determine whether to wake up within 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.

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

number

[0029]

number

[0030] Another grouping method is performed using the core network as an integration node. Visible grouping involves directly assigning group identifiers (subgroup IDs) in NR. In this case, the network assigns the subgroup IDs based on implementation, such as 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 ungrouped UEs.

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

[0033] As shown in FIG. 2, this exemplary embodiment is an information transmission method 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 within 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 supports waking up within 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 corresponding to different groups of UEs that is used to wake up UEs in different groups. Whether a PEI is supported may include, but is not limited to, whether a PEI that wakes up all UEs is supported and / or whether a 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, from the core network to the base station, or from the opposite base station.

[0037] The UE can carry capability indication information through uplink signaling in situations such as during 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 sends a PEI to the UE when the UE does not support it, or does not send a PEI to the UE when the UE supports it. Sending a PEI to the UE when the UE does not support it increases the operating load of the base station. If the UE supports PEI but does not send it, the UE cannot receive the PEI and must be woken up frequently to monitor the PO, which causes a power loss in 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, but the base station does not determine the PEI capability of the UE, which reduces misjudgment of the UE capability and improves the accuracy of the base station's determination of the PEI capability of the UE.

[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 whether the first class of PEI is different from the second class of PEI.

[0041] In one embodiment, the first type PEI may have one bit used to indicate whether to wake up the UE. The first type PEI may be extended to carry other information in addition to the paging indication, such as reference signal availability indication information. In this specification, a preferred embodiment of the first type PEI is a PEI for indicating de-grouping.

[0042] As one example, the second type PEI may have multiple bits that are used to indicate whether to wake up the UE.

[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-class PEI, the PEI can be used to wake up all UEs that receive the PEI, i.e., the first-class PEI does not distinguish the paging group of the UE.

[0045] If 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 the paging groups of the UE.

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

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

[0048] The PEI is a second-class PEI, and the subgroupsNumPerPO field has multiple bits, each corresponding to a paging group, and UEs in different paging groups determine whether to wake up within a PO period based on the bits corresponding to their paging groups. For example, the subgroupsNumPerPO field has two bits, each corresponding to two paging groups. If one of the bits is "1," the UEs in the paging group corresponding to that bit wake up to monitor paging messages in the PO; if one of the bits is "0," the UEs in the paging group corresponding to that bit stay asleep in the PO.

[0049] The capability indication information may be used to indicate whether the UE supports the first type of PEI and / or the 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 times the UE needs to be woken up for 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 being paged, and reduces the power loss of the UE.

[0052] In this way, the capability indication information indicates whether the UE supports PEI, so the base station can determine the PEI capability of the UE, and then, based on the PEI capability of the UE, send the PEI that the UE supports to wake up the UE to monitor the PO, and if there is no need to wake up the UE, it will not wake up the UE to monitor, thereby reducing power loss caused by frequent waking up of the UE.

[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 may use different paging grouping schemes to divide the paging groups, thereby generating different types of paging groups. Each paging grouping scheme may divide multiple paging groups. For example, the paging groups may be grouped based on the service type of the UE or 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] The second type PEI corresponding to at least a second 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 second type of paging grouping scheme.

[0058] 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 type of paging grouping scheme includes a paging grouping scheme that determines 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 paging groups based on UE attributes, where the UE attributes may include, but are not limited to, UE service type, UE transmission number, 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 paging groups based on UE identifier information (UE-ID). For example, the base station may determine the paging group of a UE using Equation (1).

[0061] Each bit of the second-class PEI can be used to indicate whether to wake up one or more paging groups within a given PO, where the paging groups may 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 of PEIs corresponding to at least the first class of paging grouping scheme may include a second class of PEIs corresponding only to the first class of paging grouping scheme, or may include a second class of PEIs corresponding simultaneously to the first class of paging grouping scheme and the second class of 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 POs, thereby reducing the situation where the UE is woken up in the POs of other types of paging groups and reducing power loss caused by the UE being woken up in invalid POs.

[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 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, determine that the UE does not support the first type of PEI.

[0069] Here, step 301a or 301b may be performed independently 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 an explicit indication and / or an implicit indication may be determined by a communication protocol, or may be determined through mutual consultation between the core network, the base station, and the UE.

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

[0075] Method 1: The UE can independently indicate whether it supports the first type of PEI and the second type of 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 supports at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0076] Method 2: One capability indication information indicates whether the first type PEI and the second type 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 the first type of PEI, it may report capability indication information that indicates that the UE supports the first type of PEI and further indicates that the UE supports the second type of PEI.

[0078] The UE may report only 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 can report capability indication information indicating that it supports the first type of PEI and the second type of PEI simultaneously, and the capability indication information can use two flag bits to indicate that the UE supports the first type of PEI and the second type of PEI, respectively.

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

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

[0082] The capability indication information reported by the UE 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 the second type of PEI corresponding to the second type of paging grouping scheme.

[0084] The base station can further obtain capability indication information from the core network indicating 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] If 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, it determines that the UE does not support a first type of PEI.

[0087] In one embodiment, the step of receiving the first capability indication information comprises: 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 information 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 opposite 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 the UE_ID, and may therefore transmit capability indication information to the base station indicating whether the UE supports at least a second type of PEI corresponding to the second type of paging grouping scheme.

[0090] For example, the base station determines, based on the capability indication information reported by the UE, that the terminal supports at least a second type of PEI corresponding to a second type of paging grouping scheme. The base station determines, based on the capability indication information reported by the UE, that the terminal does not support at least a second type of PEI corresponding to a second type of paging grouping scheme. Alternatively, 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 in an uplink auxiliary 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 through 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 also be transmitted between base stations. The capability indication can be sent by the opposite base station.

[0097] As an example, the UE may be an inactive UE, and the opposing base station may be the anchor base station of the UE, and the anchor base station retains capability indication information on whether the UE supports PEI. 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 a 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 in a context response of the UE, or in 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 at least a second type of PEI corresponding to 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 at least a second type of PEI corresponding to a first type of paging grouping scheme, or based on the fact that the UE does not support at least a second type of PEI corresponding to a second type of paging grouping scheme.

[0101] In one embodiment, in response to the opposite base station sending group information of the 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 sent 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, 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 be determined 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 UE supports at least a second type of PEI corresponding to the first type of paging grouping scheme. The group information transmitted from the core network can be considered as a way of implicitly indicating that the UE 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 the second type of PEI corresponding to the first type of paging grouping scheme based on the 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 opposite base station, indicating whether the UE supports the first type of PEI.

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

[0109] In step 401c, sending a second capability indication to the 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 independently 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 opposite base station.

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

[0114] The capability indication information transmitted between 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 from the UE, the base station can report the capability of the UE to the core network. The capability indication information reported from 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 from 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 its 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, which may 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 by the terminal to the core network 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 transmits to the UE the PEIs that the UE supports.

[0119] After determining the PEI that the UE can support, the base station can send the PEI that the UE can support to the UE in a subsequent paging process. In this way, the base station can send the PEI that the UE supports to wake up the UE to monitor the PO, and if there is no need to wake up the UE, it will not wake up the UE to monitor, thereby reducing power loss caused by frequent waking up of the UE.

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

[0121] In step 501, send third capability indication information to the UE, where the third capability indication information 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 the 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. 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 information can be carried in common signaling, for example, the capability indication information can be carried in a system message that is broadcast to the UE.

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

[0128] In one embodiment, the third capability indication information indicates the UE's transmittable capabilities of the base station. The first class 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 paging grouping scheme and the second class PEI corresponding to the second class paging grouping scheme.

[0129] For example, if the base station can transmit a first type of PEI, a UE that supports the first type of PEI may monitor the PEI and monitor paging messages 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 of PEI corresponding to a first type of paging grouping scheme, a UE that supports a second type of PEI corresponding to the first type of 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 by 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 the group that needs to be woken up in the 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 return to the legacy paging scheme and be configured to monitor paging messages in each PO.

[0135] In one embodiment, if the base station can transmit a second type of PEI corresponding to the first type of paging grouping scheme, a UE that supports the second type of PEI corresponding to the first type of paging grouping scheme will only monitor the PEI transmitted from the base station if the group information of the first type of 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 of PEI corresponding to a second type of paging grouping scheme, a UE that supports a second type of PEI corresponding to the second type of 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-class PEI corresponding to a second-class paging grouping scheme, if the base station does not support a second-class PEI corresponding to a second-class paging group, the base station may not monitor the PEI, and may return to the legacy paging scheme and be configured to monitor paging messages in each PO.

[0138] As an example, the base station can send 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 supports at least the second type of PEI corresponding to the first type of paging grouping scheme or at least the second type of PEI corresponding to the second type of 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 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 the second type of PEI corresponding to at least the first type of paging grouping scheme, and does not support the second type of PEI corresponding to at least the second type of paging grouping scheme, the UE may not monitor the PEI and may revert to the legacy paging scheme and be woken up to monitor paging messages in each PO.

[0140] In one embodiment, if the base station can transmit a second type of PEI corresponding to the first type of paging grouping scheme and the second type of paging grouping scheme, a UE that only supports the second type of PEI corresponding to the first type of paging grouping scheme will only monitor the PEI transmitted from the base station if the group information of the first type of 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 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 to be 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, or may 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 within 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 supports waking up within 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 instruction information for UEs of different groups to wake up UEs of different groups. Whether a PEI is supported may include, but is not limited to, whether a PEI that wakes up all UEs is supported and / or whether a PEI that wakes up UEs in a predetermined range is supported.

[0146] The UE may carry the capability indication information through uplink signaling during a random access procedure or after establishing an RRC connection, etc. The UE may also 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 sends a PEI to the UE when the UE does not support it, or does not send a PEI to the UE when the UE supports it. Sending a PEI to the UE when the UE does not support it increases the operating load of the base station. If the UE supports PEI but does not send a PEI to the UE, the UE cannot receive the PEI and must frequently wake up to monitor the PO, which causes a power loss in 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, but the base station does not determine the PEI capability of the UE, which reduces misjudgment of the UE capability and improves the accuracy of the base station's determination of the PEI capability of the UE.

[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 whether the first class of PEI is different from the second class of PEI.

[0150] The first type of PEI may have one bit used to indicate whether to wake up the UE, and the second type of 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-class PEI, the PEI can be used to wake up all UEs that receive the PEI, i.e., the first-class PEI does not distinguish the paging group of the UE.

[0153] If 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 the paging groups of the UE.

[0154] As an example, the PEI may include POnumPerPEI segments, which may be referred to as subgroupsNumPerPO fields. Each segment may correspond to one PO. Each segment includes subgroupsNumPerPO bits, each bit carrying one paging indication used to indicate whether to wake up one or more paging groups in 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 within 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', the UEs are instructed to maintain a sleep state, such as an RRC idle state or an RRC inactive state, within the PO period.

[0156] The PEI is a second-class PEI, and the subgroupsNumPerPO field has multiple bits, each corresponding to a paging group, and UEs in different paging groups determine whether to wake up within a PO period based on the bits corresponding to their paging groups. For example, the subgroupsNumPerPO field has two bits, each corresponding to two paging groups. If one of the bits is "1," the UEs in the paging group corresponding to that bit wake up to monitor paging messages in the PO; if one of the bits is "0," the UEs in the paging group corresponding to that bit stay asleep in the PO.

[0157] The capability indication information may be used to indicate whether the UE supports the first type of PEI and / or the 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 times the UE needs to be woken up for 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 being paged, and reduces the power loss of the UE.

[0160] In this way, the capability indication information indicates whether the UE supports PEI, so the base station can determine the PEI capability of the UE, and then, based on the PEI capability of the UE, send the PEI that the UE supports to wake up the UE to monitor the PO, and if there is no need to wake up the UE, it will not wake up the UE to monitor, thereby reducing power loss caused by frequent waking up of the UE.

[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 may use different paging grouping schemes to divide the paging groups, thereby generating different types of paging groups. Each paging grouping scheme may divide multiple paging groups. For example, the paging groups may be grouped based on the traffic type of the UE or 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] The second type PEI corresponding to at least a second 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 second type of 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 type of paging grouping scheme includes a paging grouping scheme that determines 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 paging groups based on UE attributes, where the UE attributes may include, but are not limited to, UE service type, UE transmission number, UE transmission bandwidth, etc.

[0168] The second type of paging grouping scheme may be a scheme in which the base station divides the paging groups based on UE identifier information (UE-ID). For example, the base station may determine the paging group of the UE using equation (1).

[0169] Each bit of the second-class PEI can be used to indicate whether to wake up one or more paging groups within a given PO, where the paging groups may 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 of PEIs corresponding to at least the first class of paging grouping scheme may include a second class of PEIs corresponding only to the first class of paging grouping scheme, or may include a second class of PEIs corresponding simultaneously to the first class of paging grouping scheme and the second class of 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 POs, thereby reducing the situation where the UE is woken up in the POs of other types of paging groups and reducing power loss caused by the UE being woken up in invalid POs.

[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 the 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 the UE_ID, and may therefore transmit capability indication information to the base station indicating whether the UE supports at least a second type of PEI corresponding to the second type of paging grouping scheme.

[0177] For example, the base station determines, based on the capability indication information reported by the UE, that the terminal supports at least a second type of PEI corresponding to a second type of paging grouping scheme. The base station determines, based on the capability indication information reported by the UE, that the terminal does not support at least a second type of PEI corresponding to a second type of paging grouping scheme. Alternatively, 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 in an uplink auxiliary 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 through 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, and 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 by the UE to determine a transmittable PEI of the base station.

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

[0185] The capability indication information may indicate the 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. 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 information can be carried in common signaling, for example, the capability indication information can be carried in a system message that is broadcast to the UE.

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

[0190] In one embodiment, the second capability indication information indicates the UE's transmittable capabilities of the base station. Class 1 PEI and a second class PEI corresponding to a first class paging grouping scheme, wherein the first class PEI is 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 paging grouping scheme and the second class PEI corresponding to the second class paging grouping scheme.

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

[0192] In step 801, the UE determines whether to monitor the PEI sent 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] The UE can determine whether to monitor the PEI sent from the base station based on its own capabilities. If the PEI is not monitored, the UE 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 the transmittable PEI of the base station, not monitoring the PEI transmitted from the base station.

[0196] If the UE supports the PEI sent from the base station, the UE can monitor the PEI and be woken up within the PO based on the PEI instruction, reducing the number of wake-ups per PO and saving the UE's power consumption.

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

[0199] For example, if the base station can transmit a first type of PEI, a UE that supports the first type of PEI may monitor the PEI and monitor paging messages 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 scheme, and be woken up to monitor paging messages in each PO.

[0201] For 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 paging messages according to the indication of the PEI.

[0202] As an example, if the 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: In response to the base station being able to transmit the first type of PEI and the UE supporting the first type of PEI and the second type of PEI, monitoring the PEI transmitted from the base station; and 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 second type of PEI.

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

[0207] The capability indication information indicating the capabilities 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 the second type of PEI, and the capability indication information may implicitly indicate that the UE simultaneously supports the first type of PEI. In this case, if the base station supports the first type of PEI, the UE can monitor the PEI transmitted 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 is capable of transmitting 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 of PEI corresponding to a first type of paging grouping scheme, a UE that supports a second type of PEI corresponding to the first type of 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 return to the legacy paging scheme and be configured to monitor paging messages in each PO.

[0212] As an example, if a base station can transmit a second type of PEI corresponding to a second type of paging grouping scheme, a UE that supports a second type of PEI corresponding to the second type of 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-class PEI corresponding to a second-class paging grouping scheme, if the base station does not support a second-class PEI corresponding to a second-class paging group, the base station may not monitor the PEI, and may return to the legacy paging scheme and be configured to monitor paging messages in each PO.

[0214] As an example, the base station can send 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 supports at least the second type of PEI corresponding to the first type of paging grouping scheme or at least the second type of PEI corresponding to the second type of 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 can 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 woken up to monitor paging messages in each PO.

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

[0217] As an example, if a base station can transmit a second type of PEI corresponding to a first type of paging grouping scheme, a UE that 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.

[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 a base station can transmit a second class of PEIs corresponding to a first class of paging grouping scheme and a second class of paging grouping scheme, and a UE supports at least a second class of PEIs corresponding to the first class of paging grouping scheme and at least a second class of PEIs corresponding to the second class of paging grouping scheme, the UE can monitor the PEIs transmitted from the base station, detect the PEIs using the group information of the first class of paging grouping scheme and the group information of the second class of paging grouping scheme of the UE, respectively, and determine whether a group corresponding to the group information of the first class of paging grouping scheme or a paging group corresponding to the group information of the second class of paging grouping scheme is to be woken up by a PO. Here, the group information of the first class of paging grouping scheme of the UE may be a group identifier assigned by the core network, or 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, first capability indication information is received, where the first capability indication information indicates whether the UE supports PEI.

[0222] The PEI can be used to indicate that the UE should wake up within 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 supports waking up within 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 instruction information for UEs of different groups to wake up UEs of different groups. Whether a PEI is supported may include, but is not limited to, whether a PEI that wakes up all UEs is supported and / or whether a PEI that wakes up UEs in a predetermined range is supported.

[0224] In addition to carrying paging information, the PEI may carry other information as extensions.

[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 include 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 it, or does not send a PEI to the UE when the UE supports it. Sending a PEI to the UE when the UE does not support it increases the operating load of the core network. If the UE supports PEI but does not send a PEI to the UE, the UE cannot receive the PEI, so it needs to frequently wake up to monitor the PO, which causes a power loss in 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, but the core network does not determine the PEI capability of the UE, which reduces misjudgment of the UE capability and improves the accuracy of the core network's determination of the PEI capability of the UE.

[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 whether 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] The first class of PEI may subsequently be extended to uses other than paging.

[0231] In short, supporting the first type of PEI means that the terminal has the ability to monitor 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, the paging group PEI.

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

[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 according 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-class PEI, the PEI can be used to wake up all UEs that receive the PEI, i.e., the first-class PEI does not distinguish the paging group of the UE.

[0236] If 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 the paging groups of the UE.

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

[0238] The PEI is a first type PEI, and the subgroupsNumPerPO field has a paging indication bit of one bit, which is used to wake up all UEs that receive the PEI to monitor paging messages within 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', the UEs are instructed to maintain a sleep state, such as an RRC idle state or an RRC inactive state, within the PO period.

[0239] The PEI is a second-class PEI, and the subgroupsNumPerPO field has multiple bits, each corresponding to a paging group, and UEs in different paging groups determine whether to wake up within a PO period based on the bits corresponding to their paging groups. For example, the subgroupsNumPerPO field has two bits, each corresponding to two paging groups. If one of the bits is "1," the UEs in the paging group corresponding to that bit wake up to monitor paging messages in the PO; if one of the bits is "0," the UEs in the paging group corresponding to that bit stay asleep in the PO.

[0240] The capability indication information may be used to indicate whether the UE supports the first type of PEI and / or the 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 times the UE needs to be woken up for 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 being paged, and reduces the power loss of the UE.

[0243] In this way, the capability indication information indicates whether the UE supports PEI, so the base station can determine the PEI capability of the UE, and then, based on the PEI capability of the UE, send the PEI that the UE supports to wake up the UE to monitor the PO, and if there is no need to wake up the UE, it will not wake up the UE to monitor, thereby reducing power loss caused by frequent waking up of the UE.

[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 may use different paging grouping schemes to divide the paging groups, thereby generating different types of paging groups. Each paging grouping scheme may divide multiple paging groups. For example, the paging groups may be grouped based on the traffic type of the UE or 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] The second type PEI corresponding to at least a second 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 second type of 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 type of paging grouping scheme includes a paging grouping scheme that determines 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 paging groups based on UE attributes, where the UE attributes may include, but are not limited to, UE service type, UE transmission number, UE transmission bandwidth, etc.

[0251] The second type of paging grouping scheme may be a scheme in which the base station divides the paging groups based on UE identifier information (UE-ID). For example, the base station may determine the paging group of the UE using equation (1).

[0252] Each bit of the second-class PEI can be used to indicate whether to wake up one or more paging groups within a given PO, where the paging groups may 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 of PEIs corresponding to at least the first class of paging grouping scheme may include a second class of PEIs corresponding only to the first class of paging grouping scheme, or may include a second class of PEIs corresponding simultaneously to the first class of paging grouping scheme and the second class of 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 POs, thereby reducing the situation where the UE is woken up in the POs of other types of paging groups and reducing power loss caused by the UE being woken up in invalid POs.

[0257] In one embodiment, the step of receiving the first capability indication information 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 through 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 the 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 from the UE, the base station can report the capability of the UE to the core network. The capability indication information reported from 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 from 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 its 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, which may 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 by the terminal to the core network 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 and 1001b.

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

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

[0267] Here, step 1001a and / or step 1001b may be performed independently 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 through 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 also be transmitted between base stations. The capability indication can be sent by the opposite base station.

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

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

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

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

[0276] b) In one embodiment, the paging grouping means capability may be a capability that the terminal reports supporting 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 second type of paging group (the terminal is a capability 2 type terminal).

[0277] c) In 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 means 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 types of terminal capability classification methods.

[0280] 1) Method 1 There is no correlation 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 abilities 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. A terminal may further indicate support for capability 2 in reporting that capability 1 is true (in which case both types of terminals may be collectively referred to as PEI-capable terminals). A terminal can 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, and reporting that it supports capability 2 implicitly states that the terminal also supports capability 1.

[0282] 3) Method 3 The terminal reports only the capability (capability 2) of supporting the UE-ID paging grouping means to the base station; 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 means that the terminal supports the second type of PEI corresponding to the above-mentioned first type of paging group.

[0283] The base station determines whether the terminal supports the UE-ID paging grouping means (Capability 2) or supports the core network paging grouping means (Capability 3), i.e., if it supports at least one of them, it supports PEI, i.e., it supports terminal Capability 1. In this case, the ability to support PEI is implicitly expressed by the terminal supporting the UE-ID paging grouping means (Capability 2) or supporting the core network paging grouping means (Capability 3). In other words, supporting the UE-ID paging grouping means or supporting the core network paging grouping means indicates 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., does not support both, does not support PEI, i.e., does not support the terminal's capability 1.

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

[0286] For example, the base station may acquire that the terminal supports the UE-ID paging grouping means by the base station being that the support is included in a report of capability indication information received from the UE; For example, the base station may determine that the terminal does not support the UE-ID paging grouping means by detecting that the base station does not support the capability indication information report received from the UE, or by not receiving a 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 may obtain that the terminal supports the core network paging grouping means capability (capability 3) by obtaining an indication from the core network indicating whether the base station supports it, i.e., by reporting whether the base station supports it using one indication indication bit.

[0288] 3. Capability reporting for terminal notification to base station 1) Reporting by traditional UE capabilities 2) Reporting by Uplink Assistant Info (UAI).

[0289] In one embodiment, the UE can report the auxiliary information when it wants to leave the connected state, and the paging group reference auxiliary information 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) In one embodiment, the UE capabilities are reported to the base station, and the base station notifies the core network via UE CAPABILITY INFO INDICATION (capability 1 or capability 2). Capability 3 does not need to be reported directly to the base station because it is transmitted to the core network by the terminal via NAS.

[0293] Additionally, 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 notifies the base station in a paging message.

[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] Ability 3 can be indicated through explicit and implicit methods.

[0297] The implicit indication means that the paging message 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, and 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 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 terminal's capabilities from the anchor base station.

[0300] a) As an example, the capabilities of the terminal 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 but supports capability 3, and can infer that it does not support capability 1; When the core network group ID is included, it implicitly indicates 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) Informing the UE of the base station's paging means support capability by 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 (the network includes terminals with capability 1, terminals with capability 2, terminals with capability 3, and terminals with capability 2 and capability 3 simultaneously).

[0305] Base station capabilities are divided into distributing 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: all terminals supporting capability 1, capability 2, capability 3, and capability 2 and capability 3 simultaneously need to be monitored and are woken up; A terminal that only supports capability 1 supports the PEI of this 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 subsequent POs based on the instructions of the PEI, and not monitoring paging messages based on the PEI means not monitoring subsequent POs based on the instructions of the PEI, but directly monitoring POs, i.e., the legacy paging monitoring method. A terminal reporting 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 at this time, also uses the PEI to monitor paging (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 inferred to not support capability 1 by not supporting capability 3 will then revert to the legacy paging scheme.

[0306] Case 2: The base station transmits the grouped PEI: The base station capabilities are divided into those that deliver the core network grouped PEI, the UE-ID grouped PEI, or those that 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 return 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 with 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 use the grouping PEI to monitor paging messages (regardless of whether it is assigned a group ID by the core network) and must check whether the group it belongs to 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 the group to which he belongs is woken up, while 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 ability to support capability 3, he does not need to perform PEI monitoring, 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, if the terminal obtains the capabilities of the base station and finds that the type of paging PEI delivered from 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 type 4), A terminal user that supports the UE-ID grouping method or the CN grouping method must use the grouping PEI to monitor paging messages and check whether the group to which it belongs is woken up. Furthermore, a user who is only assigned a groupID in the core network needs to check whether the group to which he belongs is woken up, and a user who is not assigned a groupID needs to monitor the PEI if he also has capability 2, otherwise he does not need to monitor the PEI.

[0314] An embodiment of the present invention further provides an information transmission device applied to a base station of a cellular mobile radio communication system, as shown in FIG. 11, wherein the device 100 comprises: The first receiving module 110 is configured to receive first capability indication information, the first capability indication information including an indication of whether a user equipment (UE) supports a pre-paging 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 whether 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 type of paging grouping scheme includes a paging grouping scheme that determines a paging group based on a UE identifier.

[0318] In one embodiment, the device 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 a first class paging grouping scheme and at least a second class PEI corresponding to a second class paging grouping scheme.

[0319] In one embodiment, the first receiving module 110 specifically includes: receiving the first capability indication information transmitted 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 information 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 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 it supports at least the second type of PEI corresponding to the first type of paging grouping scheme.

[0321] In one embodiment, the device 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 information indicating whether the UE supports the first type of PEI; and sending second capability indication information to a core network, the 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 device 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 the base station.

[0323] In one embodiment, the third capability indication information indicates the UE's transmittable capabilities of the base station. Class 1 PEI and a second class PEI corresponding to a first class paging grouping scheme, wherein the first class PEI is 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 paging grouping scheme and the second class PEI corresponding to the second class paging grouping scheme.

[0324] An embodiment of the present invention further provides an information transmission device applied to a UE of a cellular mobile radio communication system, as shown in FIG. 12, wherein the device 200 comprises: and 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 pre-paging 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 whether 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 type of paging grouping scheme includes a paging grouping scheme that determines a paging group based on a UE identifier.

[0328] In one embodiment, the third transmitting 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 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 the first type of paging grouping scheme.

[0329] In one embodiment, the device comprises: The second receiving module 220 further includes a second receiving module 220 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 capabilities of the base station. Class 1 PEI and a second class PEI corresponding to a first class paging grouping scheme, wherein the first class PEI is 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 paging grouping scheme and the second class PEI corresponding to the second class paging grouping scheme.

[0331] In one embodiment, the device 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: In response to determining that the UE supports a transmittable PEI of the base station, determining to monitor a PEI transmitted from the base station; and determining not to monitor a PEI transmitted from the base station in response to the UE determining that it does not support a transmittable PEI of the base station.

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

[0334] In one embodiment, the second determination module 230 specifically: determining that the base station can transmit the first type of PEI and that the UE supports the first type of PEI and the second type of PEI, and responsive thereto, 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 the PEI transmitted from the base station.

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

[0336] In one embodiment, the second determination module 230 specifically: The base station is configured to 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.

[0337] An embodiment of the present invention further provides an information transmission device applied to a core network of a cellular mobile radio communication system, as shown in FIG. 13, wherein the device 300 comprises: and a third receiving module 310 configured to receive first capability indication information, the first capability indication information indicating whether a user equipment (UE) supports a pre-paging 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 whether 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 type of paging grouping scheme includes a paging grouping scheme that determines a paging group based on a UE identifier.

[0341] In one embodiment, the third receiving module 310 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; 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.

[0342] In one embodiment, the device 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; and a fourth sending module 320 configured to at least one of: send 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 by one or more central processing units (CPUs, Central Processing Units), graphics processing units (GPUs, Graphics Processing Units), baseband processors (BPs, Baseband Processors), application specific integrated circuits (ASICs, Application Specific Integrated Circuits), DSPs, programmable logic devices (PLDs, Programmable Logic Devices), complex programmable logic devices (CPLDs, Complex Programmable Logic Devices), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs, Micro Controller Units), microprocessors, or other electronic devices, and are 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 components: 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 of the steps of the above-described methods. 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] Memory 3004 is configured to store various types of data to support operation of device 3000. Examples of this data include instructions for any application programs or methods operating on device 3000, contact data, phone book data, messages, pictures, videos, etc. Memory 3004 may be implemented by any type of volatile or non-volatile storage device, such as, for example, static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk, or a combination thereof.

[0348] The power supply component 3006 provides power to the various components of the device 3000. The power supply component 3006 may include a power management system, one or more power supplies, 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 may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, it may 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 one rear camera. When the device 3000 is in an operational mode, such as a photo mode or video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera may have a specific optical lens system, focal length, and optical zoom capability.

[0350] The audio component 3010 is configured to output and / or input audio signals. For example, the audio component 3010 includes a 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, or 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 a 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, 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 assessments of various aspects of the device 3000. For example, the sensor component 3014 can detect the on / off state of the device 3000, the relative positioning of components, such as the display and keyboard of the device 3000, and can further detect changes in the position of the device 3000 or a component of the device 3000, whether or not a user is in contact with the device 3000, the orientation or acceleration / deceleration of the device 3000, and temperature changes 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, such as 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 above methods. 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 may 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] Other embodiments of the embodiments of the present invention will be readily apparent to those skilled in the art 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 employed 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 the true scope and spirit of the embodiments of the present invention being indicated by the following claims.

[0356] It should be understood that 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 transmitting information performed by a base station, comprising: receiving first capability indication information, the first capability indication information being used to indicate that a User Equipment (UE) supports a Pre-Paging Indication (PEI) and supports a paging grouping means based on a UE identifier, respectively, or the first capability indication information being used to indicate that the UE supports the PEI and also supports a paging grouping means based on a UE identifier; The method comprises: Sending a grouped PEI to a UE, the grouped PEI being used by a UE that supports PEI and supports a paging grouping means based on a UE identifier to monitor for paging messages, and the base station only supports a paging grouping means based on a UE identifier; transmitting a grouped PEI to a UE, the grouped PEI being used by a UE that has a grouping identifier assigned in the core network to monitor a paging message, the base station supporting only a core network grouping means, the base station supporting only a core network grouping means, and in response to transmitting the grouped PEI, the grouped PEI is not monitored by a UE that does not have a grouping identifier assigned in the core network, and the grouped PEI is monitored by a UE that does not support a PEI and supports a paging grouping means based on a UE identifier; transmitting a grouped PEI to the UE, wherein the grouped PEI is used by a UE that supports a PEI and supports a paging grouping means based on a UE identifier or a UE that has been assigned a grouping identifier by the core network to monitor for paging messages; the grouped PEI is also used by a UE that has not been assigned a grouping identifier by the core network and that supports a PEI and supports a paging grouping means based on a UE identifier to monitor for paging messages; the grouped PEI is not monitored by a UE that has not been assigned a grouping identifier by the core network, does not support a PEI, and does not support a paging grouping means based on a UE identifier; and the base station supports the core network grouping means and at the same time supports the paging grouping means based on a UE identifier. Information transmission method.

2. The first capability indication information is Whether the UE supports a first type of PEI; whether the UE supports a second type of PEI, and the first type of PEI is different from the second type 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 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 type of paging grouping scheme includes a paging grouping scheme that determines a paging group based on a UE identifier; The method of 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 a first class of PEIs in response to the first capability indication information indicating that the UE does not support at least a second class of PEIs corresponding to a first class of paging grouping schemes and at least a second class of PEIs corresponding to a second class of paging grouping schemes. The method of claim 2.

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

8. 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 information indicating whether the UE supports the first type of PEI; and transmitting second capability indication information to a core network, the 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 further comprising: 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 of claim 1.

10. The third capability indication information indicates the UE's transmittable capability of the base station. PEI of Class 1; a second class of PEI corresponding to a first class of paging grouping scheme, wherein the first class of PEI is different from the 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. An information transmission method performed by a user equipment (UE), comprising: transmitting first capability indication information, wherein the first capability indication information is used to indicate that the UE supports a pre-paging indication (PEI) and supports a paging grouping means based on a UE identifier, respectively, or the first capability indication information is used to indicate that the UE supports the PEI and also supports a paging grouping means based on a UE identifier; The method comprises: In response to the base station only supporting the UE identification-based paging grouping means and sending the grouped PEI, a UE that supports the PEI and supports the UE identification-based paging grouping means listens for paging messages using the grouped PEI; In response to the base station only supporting the core network grouping means and transmitting the grouping PEI, a UE that has been assigned a grouping identifier by the core network monitors a paging message using the grouping PEI, and a UE that has not been assigned a grouping identifier by the core network does not monitor the grouping PEI; In response to the base station supporting the core network grouping means, supporting the UE identifier-based paging grouping means, and transmitting the grouped PEI, a UE that supports the PEI and the UE identifier-based paging grouping means, or a UE that has been assigned a grouping identifier by the core network, monitors a page message using the grouped PEI; a UE that has not been assigned a grouping identifier by the core network, supports a PEI, and simultaneously supports the UE identifier-based paging grouping means, monitors a paging message using the grouped PEI; a UE that has not been assigned a grouping identifier by the core network, does not support a PEI, and simultaneously does not support the UE identifier-based paging grouping means does not monitor the grouped PEI. Information transmission method.

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

17. The second capability indication information indicates the UE's capability to transmit the base station. PEI of Class 1; a second class of PEI corresponding to a first class of paging grouping scheme, wherein the first class of PEI is different from the 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. and 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 the 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 the PEI transmitted from the base station.

20. The method of claim 18.

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

21. The method of claim 20.

22. 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, monitoring a PEI transmitted from the base station 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; the base station is capable of transmitting the second class of PEIs corresponding to at least a second class of paging grouping scheme, and in response to the UE supporting the second class of PEIs corresponding to at least the second class of paging grouping scheme, monitoring the PEIs transmitted from the base station.

21. The method of claim 20.

23. In response to the base station being capable of transmitting the second type of PEI corresponding to at least the first type of paging grouping scheme, and the UE supporting at least the second type of PEI corresponding to the first type of paging grouping scheme, monitoring the PEI transmitted from the base station, 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. 1. A method of information transmission performed by a core network, comprising: receiving first capability indication information, the first capability indication information being used to indicate that a User Equipment (UE) supports a Pre-Paging Indication (PEI) and supports a UE identifier-based paging grouping means, respectively, or the first capability indication information being used to indicate that the UE supports the PEI and simultaneously supports a UE identifier-based paging grouping means; The method comprises: Sending a grouped PEI to a UE, the grouped PEI being used by a UE that supports PEI and supports a paging grouping means based on a UE identifier to monitor for paging messages, and the base station only supports a paging grouping means based on a UE identifier; transmitting a grouped PEI to a UE, the grouped PEI being used by a UE that has a grouping identifier assigned in the core network to monitor a paging message, the base station supporting only a core network grouping means, the base station supporting only a core network grouping means, and in response to transmitting the grouped PEI, the grouped PEI is not monitored by a UE that does not have a grouping identifier assigned in the core network, and the grouped PEI is monitored by a UE that does not support a PEI and supports a paging grouping means based on a UE identifier; transmitting a grouped PEI to the UE, wherein the grouped PEI is used by a UE that supports a PEI and supports a paging grouping means based on a UE identifier or a UE that has been assigned a grouping identifier by the core network to monitor for paging messages; the grouped PEI is also used by a UE that has not been assigned a grouping identifier by the core network and that supports a PEI and supports a paging grouping means based on a UE identifier to monitor for paging messages; the grouped PEI is not monitored by a UE that has not been assigned a grouping identifier by the core network, does not support a PEI, and does not support a paging grouping means based on a UE identifier; and the base station supports the core network grouping means and at the same time supports the paging grouping means based on a UE identifier. Information transmission method.

25. The first capability indication information is Whether the UE supports a first type of PEI; whether the UE supports a second type of PEI, and the first type of PEI is different from the second type 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 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 type of paging grouping scheme 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 information 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 information from a base station, the first capability indication information 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; 26. The method of claim 25.

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

26. The method of claim 25.

30. An information transmission device, a first receiving module configured to receive first capability indication information, the first capability indication information being used to indicate that a User Equipment (UE) supports a Pre-Paging Indication (PEI) and supports a UE identifier-based paging grouping means, respectively, or the first capability indication information being used to indicate that the UE supports the PEI and also supports a UE identifier-based paging grouping means; the apparatus further includes a second transmitting module; The second transmitting module includes: transmitting a grouped PEI to a UE, the grouped PEI being used by a UE that has a grouping identifier assigned in the core network to monitor a paging message, the base station supporting only a core network grouping means, the base station supporting only a core network grouping means, and in response to transmitting the grouped PEI, the grouped PEI is not monitored by a UE that does not have a grouping identifier assigned in the core network, and the grouped PEI is monitored by a UE that does not support a PEI and supports a paging grouping means based on a UE identifier; transmitting a grouped PEI to the UE, wherein the grouped PEI is used by a UE that supports a PEI and supports a paging grouping means based on a UE identifier or a UE that has been assigned a grouping identifier by the core network to monitor for paging messages; the grouped PEI is further used by a UE that has not been assigned a grouping identifier by the core network and that simultaneously supports a PEI and supports a paging grouping means based on a UE identifier to monitor for paging messages; the grouped PEI is not monitored by a UE that has not been assigned a grouping identifier by the core network, does not support a PEI, and does not support a paging grouping means based on a UE identifier; and the base station supports the core network grouping means and at the same time supports the paging grouping means based on a UE identifier. 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 type of PEI, and the first type of PEI is different from the second type 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 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 type of paging grouping scheme 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 a second class of PEIs corresponding to at least a first class of paging grouping schemes and at least a second class of PEIs corresponding to the second class of paging grouping schemes in response to the first capability indication information indicating that the UE does not support the first class of PEIs.

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 information indicating whether the UE supports the first type of PEI; receiving the first capability indication information transmitted from the UE, the first capability indication information indicating whether the UE supports at least a 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; 32. The apparatus of claim 31.

36. The first receiving module includes: configured to determine, in response to receiving group information of the first type of paging grouping scheme of the UE transmitted from the core network, 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 second capability indication information to a core network indicating whether the UE supports the first type of PEI; and transmitting second capability indication information to a core network, the 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.

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 the UE's transmittable capability of the base station. PEI of Class 1; a second class of PEI corresponding to a first class of paging grouping scheme, wherein the first class of PEI is different from the 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 being used to indicate that a User Equipment (UE) supports a Pre-Paging Indicator (PEI) and supports a UE identifier-based paging grouping means, respectively, or the first capability indication information being used to indicate that the UE supports the PEI and simultaneously supports a UE identifier-based paging grouping means; The apparatus further includes a third determination module, the third determination module comprising: In response to the base station only supporting the UE identification-based paging grouping means and sending the grouped PEI, a UE that supports the PEI and supports the UE identification-based paging grouping means listens for paging messages using the grouped PEI; In response to the base station only supporting the core network grouping means and transmitting the grouping PEI, a UE that has been assigned a grouping identifier by the core network monitors a paging message using the grouping PEI, and a UE that has not been assigned a grouping identifier by the core network does not monitor the grouping PEI; An information transmission device used to perform at least one of the following in response to a base station supporting a core network grouping means, supporting a UE identifier-based paging grouping means, and transmitting a grouped PEI: a UE that supports a PEI and the UE identifier-based paging grouping means, or a UE that has been assigned a grouping identifier by the core network, uses the grouped PEI to monitor page messages; a UE that has not been assigned a grouping identifier by the core network, supports a PEI, and simultaneously supports the UE identifier-based paging grouping means, uses the grouped PEI to monitor paging messages; and a UE that has not been assigned a grouping identifier by the core network, does not support a PEI, and simultaneously does not support the UE identifier-based paging grouping means, does not monitor the grouped PEI.

41. The first capability indication information is Whether the UE supports a first type of PEI; whether the UE supports a second type of PEI, and the first type of PEI is different from the second type 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 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 type of paging grouping scheme includes a paging grouping scheme that determines a paging group based on a UE identifier; 43. The apparatus of claim 42.

44. The third transmitting module: 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 the 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 the UE's capability to transmit the base station. PEI of Class 1; a second class of PEI corresponding to a first class of paging grouping scheme, wherein the first class of PEI is different from the 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 determination 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: In response to determining that the UE supports a transmittable PEI of the base station, determining to monitor a PEI transmitted from the base station; and in response to determining that the UE does not support the 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 that the UE supports the first type of PEI, responsive to which the UE monitors the PEI transmitted from the base station; the base station is capable of transmitting a second type of PEI, and in response to the UE supporting the second type of PEI, determining 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 of PEI and that the UE supports the first type of PEI and the second type of PEI, and responsive thereto, 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 the PEI transmitted from the base station.

50. The apparatus of claim 49.

51. The third determination module: 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 the PEI transmitted from the base station; the base station is capable of transmitting the second class of PEI corresponding to at least a second class of paging grouping scheme, and determining to monitor the PEI transmitted from the base station in response to the UE supporting the second class of PEI corresponding to at least the second class of paging grouping scheme.

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 being used to indicate that a User Equipment (UE) supports a Pre-Paging Indication (PEI) and supports a UE identifier-based paging grouping means, respectively, or the first capability indication information being used to indicate that the UE supports the PEI and simultaneously supports a UE identifier-based paging grouping means; the apparatus further includes a fourth transmitting module; The fourth transmitting module: transmitting a grouped PEI to a UE, the grouped PEI being used by a UE that has a grouping identifier assigned in the core network to monitor a paging message, the base station supporting only a core network grouping means, the base station supporting only a core network grouping means, and in response to transmitting the grouped PEI, the grouped PEI is not monitored by a UE that does not have a grouping identifier assigned in the core network, and the grouped PEI is monitored by a UE that does not support a PEI and supports a paging grouping means based on a UE identifier; transmitting a grouped PEI to the UE, wherein the grouped PEI is used by a UE that supports a PEI and supports a paging grouping means based on a UE identifier or a UE that has been assigned a grouping identifier by the core network to monitor for paging messages; the grouped PEI is further used by a UE that has not been assigned a grouping identifier by the core network and that simultaneously supports a PEI and supports a paging grouping means based on a UE identifier to monitor for paging messages; the grouped PEI is not monitored by a UE that has not been assigned a grouping identifier by the core network, does not support a PEI, and does not support a paging grouping means based on a UE identifier; and the base station supports the core network grouping means and at the same time supports the paging grouping means based on a UE identifier. 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 type of PEI, and the first type of PEI is different from the second type 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 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 type of paging grouping scheme 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 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 information 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 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; 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, A communication device including a processor, a memory, and an execution program stored in the memory and executable by the processor, wherein when the processor executes the execution program, the device performs the steps of an information transmission method according to any one of claims 1 to 10, claims 11 to 23, and claims 24 to 29. Communication device equipment.

60. A storage medium on which an executable program is stored, When the executable program is executed by a processor, it 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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