Cell communication method, apparatus, device, and medium

Abstract

A cell communication method, device, equipment and medium, relating to the field of wireless communication. The method is applied to a terminal, and comprises: sending an uplink request signal, or determining whether to send an uplink request signal, the uplink request signal being used to request to acquire common information of the first cell (210). The method provides a working method of the terminal in a network energy-saving cell.

Description

[0001] Cross-references This application is a divisional application of Chinese Patent Application No. 202480071023.3, entitled "Method, Apparatus, Device and Medium for Cell Communication", which entered the Chinese national phase of PCT international patent application PCT / CN2024 / 072137 filed on January 12, 2024, and the contents of these applications are incorporated herein by reference in their entirety. Technical Field

[0002] This application relates to the field of wireless communication, and in particular to a cell communication method, apparatus, device and medium. Background Technology

[0003] Energy consumption has become a significant component of operators' operating costs. According to a report by the GSMA (Global System for Mobile Communications Association), energy costs for mobile networks account for approximately 23% of operators' total costs. The majority of energy consumption comes from radio access networks, while data centers and fiber optic transmission account for only a smaller share.

[0004] To reduce network power consumption, some cells do not send or do not actively send SIB1 (System Information Block 1). How terminals can operate in these types of cells is an urgent problem to be solved. Summary of the Invention

[0005] This application provides a cell communication method, apparatus, device, and medium. The technical solution is as follows: According to one aspect of this application, a cell communication method is provided, the method being executed by a terminal, the method comprising: Send an uplink request signal, or determine whether to send the uplink request signal, the uplink request signal being used to request the acquisition of public information of the first cell.

[0006] According to one aspect of this application, a cell communication method is provided, the method being executed by a terminal, the method comprising: Receive the first information from the first cell; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0007] According to one aspect of this application, a cell communication method is provided, the method being performed by an access network device of a first cell, the method comprising: Receive an uplink request signal, which is used to request the acquisition of public information of the first cell.

[0008] According to one aspect of this application, a cell communication device is provided, the device comprising: Send the first message; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0009] According to one aspect of this application, a cell communication device is provided, the device comprising: The first transmitting module is used to send an uplink request signal, or... The first processing module is used to determine whether to send the uplink request signal, which is used to request the acquisition of public information of the first cell.

[0010] According to one aspect of this application, a cell communication device is provided, the device comprising: The second receiving module is used to receive the first information of the first cell; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0011] According to one aspect of this application, a cell communication device is provided, the device comprising: The third receiving module is used to receive an uplink request signal, which is used to request the acquisition of public information of the first cell.

[0012] According to one aspect of this application, a cell communication device is provided, the device comprising: The fourth sending module is used to send the first information; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0013] According to one aspect of this application, a terminal is provided, the terminal comprising: a processor and a transceiver connected to the processor; wherein, The transceiver is used to send an uplink request signal, or... The processor is configured to determine whether to send the uplink request signal, which is used to request the acquisition of public information of the first cell.

[0014] According to one aspect of this application, a terminal is provided, the terminal comprising: a processor and a transceiver connected to the processor; wherein, The transceiver is used to receive the first information of the first cell; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0015] According to one aspect of this application, a network device is provided, the network device comprising: a processor and a transceiver connected to the processor; wherein, The transceiver is used to receive an uplink request signal, which is used to request the acquisition of public information of the first cell.

[0016] According to one aspect of this application, a network device is provided, the network device comprising: a processor and a transceiver connected to the processor; wherein, The transceiver is used to receive the first information of the first cell; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0017] According to one aspect of this application, a terminal is provided, the terminal comprising: a processor and a memory, the memory storing at least one instruction, the at least one instruction being loaded and executed by the processor to implement the cell communication method as described above.

[0018] According to one aspect of this application, a network device is provided, the network device comprising: a processor and a memory, the memory storing at least one instruction, the at least one instruction being loaded and executed by the processor to implement the cell communication method as described above.

[0019] According to one aspect of this application, a computer-readable storage medium is provided, wherein executable instructions are stored in the storage medium, the executable instructions being loaded and executed by a processor to enable a communication device to implement the cell communication method as described above.

[0020] According to one aspect of the embodiments of this application, a chip is provided, the chip including programmable logic circuits and / or program instructions, which, when the chip is run on a communication device, enables the communication device to implement the cell communication method described above.

[0021] According to one aspect of this application, a computer program product is provided that, when run on a processor of a communication device, causes the communication device to perform the cell communication method described in the above aspect.

[0022] The technical solutions provided in this application have at least the following beneficial effects: The terminal sends an uplink request signal to the network, requesting the first cell to send public information, thereby waking the first cell to send public information (e.g., SIB1), and then executing the communication process with the first cell based on the public information. Alternatively, for a first cell that does not send or actively send public information, the first cell can send first information to inform the terminal that the first cell is not sending or actively sending public information, so that the terminal can execute the communication process according to the first cell's decision. This method describes the terminal's operation in cells that do not send or actively send public information, improving the communication process within energy-saving cells. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a communication system provided in an exemplary embodiment of this application; Figure 2 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 3 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 4 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 5 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 6 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 7 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 8 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 9 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 10 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 11 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 12 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 13 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 14 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 15 This is a flowchart of a cell communication method provided in an exemplary embodiment of this application; Figure 16 This is a structural block diagram of a cell communication device provided in an exemplary embodiment of this application; Figure 17 This is a structural block diagram of a cell communication device provided in an exemplary embodiment of this application; Figure 18 This is a structural block diagram of a cell communication device provided in an exemplary embodiment of this application; Figure 19 This is a structural block diagram of a cell communication device provided in an exemplary embodiment of this application; Figure 20 This is a schematic diagram of the structure of a communication device provided in an exemplary embodiment of this application. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0026] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0027] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0028] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0029] In this application embodiment, "predefined" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminals and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0030] Currently, with people's pursuit of speed, latency, high-speed mobility, and energy efficiency, as well as the diversity and complexity of services in future life, the 3GPP (3rd Generation Partnership Project) international standards organization has begun developing 5G (5th Generation Mobile Communication Technology). The main application scenarios for 5G are: Enhanced Mobile Broadband (eMBB), Ultra-Reliable Low-Latency Communications (URLLC), and Massive Machine-Type Communication (mMTC).

[0031] eMBB still aims to provide users with multimedia content, services, and data, and its demand is growing rapidly. On the other hand, because eMBB may be deployed in different scenarios, such as indoors, urban areas, and rural areas, its capabilities and needs vary considerably. Therefore, generalizations cannot be made; a detailed analysis based on the specific deployment scenario is necessary. Typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), and traffic safety assurance. Typical characteristics of mMTC include high connection density, small data volume, latency-insensitive services, low module cost, and long module lifespan.

[0032] NR (New Radio) can also be deployed independently. In 5G network environments, to reduce air interface signaling and quickly restore radio connections and data services, a new RRC (Radio Resource Control) state is defined, namely the RRC INACTIVE state. This state is different from RRC IDLE and RRC ACTIVE.

[0033] RRC IDLE: Mobility is based on UE-based cell selection and reselection. Paging is initiated by the CN (Core Network), and the paging area is configured by the CN. There is no UE AS (Access Stratum) context on the base station side. No RRC connection exists.

[0034] RRC CONNECTED: An RRC connection exists, and the base station and UE share a UE AS context. The network-side location of the UE is at the cell-specific level. Mobility is network-controlled. Unicast data can be transmitted between the UE and the base station.

[0035] RRC INACTIVE: Mobility is based on UE cell selection and reselection, there is a connection between CN and NR, the UE AS context exists on a certain base station, paging is triggered by RAN (Radio Access Network), the paging area based on RAN is managed by RAN, and the network side locates the UE based on the RAN paging area level.

[0036] Please refer to Figure 1 This illustration shows a schematic diagram of a network architecture 100 provided in one embodiment of this application. The network architecture 100 may include: a terminal 10, an access network device 20, and a core network device 30.

[0037] Terminal 10 can refer to User Equipment (UE), Access Terminal, User Unit, User Station, Mobile Station, Mobile Station, Remote Station, Remote Terminal, Mobile Device, Wireless Communication Equipment, User Agent, or User Equipment. Optionally, Terminal 10 can also be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device, or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal in a 5th Generation System (5GS), or a terminal in a future Public Land Mobile Network (PLMN), etc. This application embodiment does not limit this. For ease of description, the devices mentioned above are collectively referred to as terminals. The number of terminals 10 is usually multiple; one or more terminals 10 can be distributed within the cell managed by each access network device 20.

[0038] Access network device 20 is a device deployed in an access network to provide wireless communication functionality to terminal 10. Access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the name of the device with access network device functionality may differ; for example, in a 5G NR system, it is called gNodeB or gNB (next generation Node B). As communication technologies evolve, the name "access network device" may change. For ease of description, in this embodiment, the aforementioned devices providing wireless communication functionality to terminal 10 are collectively referred to as access network devices. Optionally, a communication relationship can be established between terminal 10 and core network device 30 through access network device 20. For example, in a Long Term Evolution (LTE) system, access network device 20 can be one or more eNodeBs within an Evolved Universal Terrestrial Radio Access Network (EUTRAN); in a 5G NR system, access network device 20 can be one or more gNBs within a Radio Access Network (RAN). In the embodiments of this application, unless otherwise specified, the network device referred to is access network device 20, such as a base station.

[0039] Core network equipment 30 is equipment deployed in the core network. Its main functions are to provide user connectivity, manage users, and bear services, serving as an interface to external networks. For example, core network equipment in a 5G NR system may include Access and Mobility Management Function (AMF) network elements, Authentication Server Function (AUSF) network elements, User Plane Function (UPF) network elements, Session Management Function (SMF) network elements, Location Management Function (LMF) network elements, Policy Control Function (PCF) network elements, and Unified Data Management (UDM) network elements, etc.

[0040] In one example, access network device 20 and core network device 30 communicate with each other through some interface technology, such as the NG interface in a 5G NR system. Access network device 20 and terminal 10 communicate with each other through some air interface technology, such as the Uu interface.

[0041] Access network equipment refers to the access devices that terminals use to wirelessly access the network architecture. They are primarily responsible for air interface-side radio resource management, Quality of Service (QoS) management, data compression, and encryption. Examples include: NodeB base stations, eNodeB base stations, base stations in 5G mobile communication systems or next-generation radio (NR) communication systems, and base stations in future mobile communication systems.

[0042] Core network equipment includes NSSF (Network Slice Selection Function), AUSF (Authentication Server Function), UDM (Unified Data Management), AMF (Access and Mobility Management Function), SMF (Session Management Function), PCF (Policy Control Function), and UPF (User Plane Function).

[0043] The UE connects to the (R)AN (Access Network) via the Uu interface to establish an access layer connection, exchanging access layer messages and radio data. The UE also connects to the AMF (Non-Access Stratum, NAS) via the N1 interface to exchange NAS messages. The AMF is the mobility management function in the core network, and the SMF is the session management function. In addition to managing the UE's mobility, the AMF is responsible for forwarding session management-related messages between the UE and the SMF. The PCF is the policy management function in the core network, responsible for formulating policies related to UE mobility management, session management, and charging. The PCF transmits data with the Application Function (AF) via the N5 interface. The UPF (User Plane Function) is the user plane function in the core network, transmitting data with the external Data Network (DN) via the N6 interface and with the AN via the N3 interface.

[0044] The "5G NR system" in this application embodiment can also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in this application embodiment can be applied to LTE systems, 5G NR systems, subsequent evolution systems of 5G NR systems, and other communication systems such as Narrowband Internet of Things (NB-IoT) systems. This application does not limit these applications.

[0045] Please refer to Figure 2 The diagram illustrates a flowchart of a cell communication method provided in one embodiment of this application, which can be applied to a terminal. The method includes the following steps.

[0046] Step 210: Send an uplink request signal, or determine whether to send an uplink request signal. The uplink request signal is used to request the acquisition of public information of the first cell.

[0047] The uplink request signal can also be called the uplink wake-up signal (UL WUS), public information request signal, SIB1 request signal, or energy-saving wake-up signal.

[0048] The uplink request signal is used to request the acquisition of public information of the first cell. Alternatively, the uplink request signal is used to request the acquisition of SIB1 of the first cell. Alternatively, the uplink request signal is used to request the wake-up of the first cell. Alternatively, the uplink request signal is used to request the first cell to exit power-saving mode. Alternatively, the uplink request signal is used to request the first cell to exit inactive mode.

[0049] When a terminal needs to execute a communication process related to the first cell, and the terminal has not obtained the public information of the first cell, the terminal can execute step 210 to send an uplink request signal, or determine whether to send an uplink request signal. This is to facilitate obtaining the public information of the first cell and executing the communication process related to the first cell.

[0050] The first cell is a cell that does not send or actively send public information. Alternatively, the first cell is a cell that does not send or actively send SIB1. Or, the first cell is a cell that does not send or actively send SIB (System Information Block).

[0051] Optionally, the first cell sends an SSB (Synchronization Signal Block), but does not send / does not actively send public information / SIB1 / SIB.

[0052] The first cell may include at least one of the following: SIB1 less cell, NES (Network Energy Saving) cell, inactive cell, energy-saving cell, or cell lacking public information.

[0053] Among them, cells in inactive / energy-saving state can be called SIB1 less cells, NES cells, inactive cells, energy-saving cells, or cells lacking public information; or, cells that support switching to inactive / energy-saving state can be called SIB1 less cells, NES cells, inactive cells, energy-saving cells, or cells lacking public information.

[0054] Optionally, the first cell may have multiple cell states / network states, such as at least one of the following: active state, inactive state, energy-saving state, and energy-dissipating state.

[0055] Specifically, cells in active or non-energy-saving states can transmit public information / SIB1 / SIB normally, or cells in active or non-energy-saving states can periodically transmit public information / SIB1 / SIB. In other words, active or non-energy-saving states mean that the cell can transmit public signals / SIB1 / SIB normally, or that the cell can periodically transmit public signals / SIB1 / SIB.

[0056] Cells in inactive / energy-saving state do not transmit public information / SIB1 / SIB, or cells in inactive / energy-saving state do not actively transmit public information / SIB1 / SIB. That is, inactive / energy-saving state means that the cell does not transmit or does not actively transmit public signals / SIB1 / SIB.

[0057] Optionally, the first cell is currently in an inactive or energy-saving state; or, the first cell is preparing to switch from an active / energy-saving state to an inactive or energy-saving state.

[0058] Optionally, the public information includes at least SIB1, or, the public information includes at least SIB, or, the public information includes at least SIB n, where n is a positive integer.

[0059] Optionally, the public information includes at least one of the following information of the first cell: cell selection parameters, SIB scheduling information, random access configuration, paging search space configuration, channel configuration, cell reselection parameters, co-frequency neighbor cell information, and inter-frequency neighbor cell information.

[0060] Optionally, the public information includes at least one of the following parameters of the first cell: PLMN (Public Land Mobile Network) identifier, TAC (Tracking Area Code), minimum RSRP (Reference Signal Received Power), minimum RSRP offset value, maximum available uplink transmit power of the terminal, uplink / downlink ratio, special subframe format, operating frequency band indication, other SIB scheduling information, random access preamble power step size, DRX (Discontinuous Reception) period, paging frame and paging timing density, PRACH (Physical Random Access Channel) time distribution, random access preamble format, root exponent of the start root sequence, ZC (Zone Config) phase cyclic shift length, number of contention-used RAs (Routing Areas), receive window duration, random access preamble initial power, reference signal power, PUSCH (Physical Uplink Shared Power). Initial transmit power of terminal (Physical Uplink Shared Channel), initial transmit power of terminal (PUCCH), power setting related parameters, R criterion, minimum RSRQ (Reference Signal Received Quality), same-frequency measurement start threshold, different-frequency measurement start threshold, reselection duration, low-priority cell threshold.

[0061] Optionally, the terminal is in the RRC idle state, or the terminal is in the RRC inactive state.

[0062] Optionally, the terminal is currently camped in the first cell (NES cell); or, the terminal is currently camped in the anchor cell of the first cell (a cell that is associated with the first cell); or, the terminal is currently camped in another cell, which is a cell other than the first cell and the anchor cell of the first cell.

[0063] Optionally, since the terminal cannot obtain the public information of the first cell, it cannot select the first cell to camp on; then the terminal camps on the cell in at least one of the following ways: before the first cell sends public information, it does not camp on the first cell; before the first cell sends public information, it camps on the anchor cell of the first cell; before the first cell sends public information, it camps on another cell; other cells include cells other than the first cell and the anchor cell; before the first cell wakes up, it does not camp on the first cell; before the first cell wakes up, it camps on the anchor cell of the first cell; before the first cell wakes up, it camps on another cell; other cells include cells other than the first cell and the anchor cell; after the first cell sends public information, it camps on the first cell; after the first cell wakes up, it camps on the first cell.

[0064] Alternatively, the terminal may pre-camp in the first cell without obtaining the public information of the first cell, and then determine whether it can camp in the first cell after obtaining the public information of the first cell. That is, the terminal may camp in the first cell before the first cell sends public information; and / or camp in the first cell after the first cell sends public information; and / or camp in the first cell before the first cell wakes up; and / or camp in the first cell before the first cell wakes up.

[0065] Optionally, the terminal sends an uplink request signal to the target cell. The target cell can be at least one of the following: a first cell, the anchor cell of the first cell, or the terminal's camping cell. The terminal's camping cell can be the first cell, the anchor cell of the first cell, or other cells. Other cells are cells other than the first cell and the anchor cell of the first cell.

[0066] The anchor cell of the first cell is a cell that is associated with the first cell. The association information between the first cell and the anchor cell can be predefined, or it can be indicated by the cell that the terminal last accessed, or by the terminal's last serving cell, or by the terminal's serving cell, or by the anchor cell of the first cell, or by the cell where the terminal is camped, or by the first cell itself.

[0067] In summary, the method provided in this embodiment involves the terminal sending an uplink request signal to the network to request the first cell to send public information, thereby waking up the first cell to send public information (e.g., SIB1), and then executing the communication process with the first cell based on the public information. This method provides a way for the terminal to operate in cells that do not send or actively send public information, thus improving the communication process within energy-saving cells.

[0068] Please refer to Figure 3The diagram illustrates a flowchart of a cell communication method provided in one embodiment of this application, which can be applied to a network device. The method includes the following steps.

[0069] Step 310: Receive uplink request signal. The uplink request signal is used to request the acquisition of public information of the first cell.

[0070] Optionally, this embodiment is executed by a network device, which may be at least one of the following devices: the access network device of the first cell, the access network device of the anchor cell of the first cell, the access network device of the terminal's camp cell, and the core network device.

[0071] Alternatively, the network equipment can be the access network equipment or core network equipment of the target cell. The target cell includes at least one of the following: a first cell, the anchor cell of the first cell, the cell where the terminal camps, or other cells. The cell where the terminal camps can be the first cell, the anchor cell of the first cell, or other cells. Other cells are cells other than the first cell and the anchor cell of the first cell.

[0072] The following sections will explain various scenarios involving network devices.

[0073] (1) such as Figure 4 As shown, network devices can be core network devices.

[0074] Terminal 10 sends an uplink request signal to the access network equipment of the second cell 40. The second cell 40 can be at least one of the following: the anchor cell of the first cell, the terminal's camp cell, or another cell. The access network equipment of the second cell 40 reports the uplink request signal to the core network equipment 30. The core network equipment 30 forwards the uplink request signal to the access network equipment of the first cell 50.

[0075] Optionally, the core network device 30 may also send other signals / messages / indication information to the first cell 50 to instruct the first cell 50 to send public information. For example, the core network device 30 may send uplink indication information to the first cell 50, which is used to instruct the first cell to send public information / SIB1 / SIB.

[0076] Optionally, the core network device 30 triggers the first cell 50 to send public information / SIB1 / SIB.

[0077] (2) such as Figure 5 As shown, the network device can be an access network device in a second cell other than the first cell (e.g., the anchor cell of the first cell, the cell where the terminal is stationed, or other cells).

[0078] Terminal 10 sends an uplink request signal to the access network equipment of the second cell 40. The second cell 40 can be at least one of the following: the anchor cell of the first cell, the terminal's camp cell, or another cell. The access network equipment of the second cell 40 forwards the uplink request signal to the access network equipment of the first cell 50.

[0079] Optionally, the first cell 50 may be triggered by the second cell 40 (the anchor cell of the first cell, the cell where the terminal is stationed, or other cells) to send public information / SIB1 / SIB.

[0080] (3) such as Figure 6 As shown, the network device can be the access network device of the first cell.

[0081] Terminal 10 sends an uplink request signal to the access network equipment of the first cell 50.

[0082] Optionally, the first cell 50 may autonomously trigger the first cell 50 to send public information / SIB1 / SIB.

[0083] Based on the above Figure 4 , Figure 5 and Figure 6 When a terminal sends an uplink request signal to a second cell, it can do so through a random access procedure. For example, the uplink request signal can be carried in Msg1, Msg2, Msg3, or Msg4 of the random access procedure. Alternatively, the terminal can send the uplink request signal to the second cell after accessing it. Or, the terminal can send the uplink request signal to the second cell on the resources corresponding to the first pre-configured resource.

[0084] The first pre-configuration may be the configuration information of the uplink request signal received by the terminal in advance. The first pre-configuration is used to configure at least one of the following: time domain resources, frequency domain resources, preamble, physical random access resources, random access resources, and beam direction of the uplink request signal.

[0085] The first pre-configuration can be sent to the terminal from the anchor cell of the first cell, or from the cell where the terminal is currently camped, or from a cell the terminal has historically camped, or from a second cell, or predefined or written in the protocol, or from the last cell serving the UE, or from the last cell the UE camped, or from an NES cell to the UE via other cells, or from an NES cell to the UE (such as in an enhanced MIB or SSB, or in other signals sent before wake-up). Optionally, the terminal saves the first pre-configuration.

[0086] Optionally, the first pre-configuration of the uplink request signal can be configured for a first cell. That is, the first pre-configuration is used to configure the uplink request signal for the first cell. When the terminal needs to request public information of the first cell, it uses the resources corresponding to the first pre-configuration to send an uplink request signal to the second cell. Optionally, the first pre-configuration can also be configured for all NES cells. That is, the first pre-configuration is used to configure the uplink request signal for NES cells. When the terminal needs to request public information of any NES cell, it can use the resources corresponding to the first pre-configuration to send an uplink request signal to the second cell. Optionally, the pre-configuration of the uplink request signal can also be configured for the second cell. That is, the UE can use the resources corresponding to the first pre-configuration to send an uplink request signal to the second cell regardless of which NES cell it triggers.

[0087] Based on the above Figure 4 , Figure 5 and Figure 6 When the terminal sends an uplink request signal to the first cell, the terminal can send the uplink request signal to the first cell on the resource corresponding to the second pre-configuration.

[0088] The second pre-configuration may be the configuration information of the uplink request signal received by the terminal in advance. The second pre-configuration is used to configure at least one of the following: time domain resources, frequency domain resources, preamble, physical random access resources, random access resources, and beam direction of the uplink request signal.

[0089] The second pre-configuration can be sent to the terminal from the anchor cell of the first cell, or from the cell where the terminal is currently camped, or from cells where the terminal has historically camped, or predefined or written in the protocol, or from the last cell serving the UE, or from the last cell where the UE camped, or from the NES cell through other cells, or from the NES cell to the UE (such as in an enhanced MIB or SSB, or in other signals sent before wake-up). Optionally, the terminal saves the second pre-configuration.

[0090] Optionally, the second pre-configuration of the uplink request signal can be configured for the first cell. That is, the second pre-configuration is used to configure the uplink request signal for the first cell. When the terminal needs to request public information of the first cell, it uses the resources corresponding to the first pre-configuration to send the uplink request signal to the first cell. Optionally, the second pre-configuration can also be configured for all NES cells. That is, the second pre-configuration is used to configure the uplink request signal for NES cells. When the terminal needs to send an uplink request signal to any NES cell (e.g., the first cell), it can use the resources corresponding to the second pre-configuration to send the uplink request signal to the corresponding NES cell (e.g., the first cell).

[0091] Optionally, after receiving the uplink request signal, the first cell 50 sends the public information / SIB1 / SIB. Optionally, the first cell 50 may broadcast the public information / SIB1 / SIB, or the first cell 50 may unicast the public information / SIB1 / SIB to the terminal.

[0092] Optionally, the terminal receives the public information / SIB1 / SIB sent by the first cell.

[0093] Optionally, the terminal receives the public information / SIB1 / SIB sent by the first cell according to the public information configuration / SIB1 configuration / SIB configuration. The public information configuration / SIB1 configuration / SIB configuration is used to indicate the time and frequency resources of the public information / SIB1 / SIB.

[0094] The public information configuration / SIB1 configuration / SIB configuration can be carried in the SSB of the first cell. That is, the first cell sends the SSB, and the terminal receives the public information / SIB1 / SIB according to the public information configuration / SIB1 configuration / SIB configuration indicated in the SSB.

[0095] Alternatively, the public information configuration / SIB1 configuration / SIB configuration can be indicated to the terminal by the anchor cell of the first cell / the terminal's camping cell / other cells / core network equipment.

[0096] Alternatively, the public information configuration / SIB1 configuration / SIB configuration can be predefined.

[0097] In summary, the method provided in this embodiment involves the terminal sending an uplink request signal to the network to request the first cell to send public information, thereby waking up the first cell to send public information (e.g., SIB1), and then executing the communication process with the first cell based on the public information. This method provides a way for the terminal to operate in cells that do not send or actively send public information, thus improving the communication process within energy-saving cells.

[0098] An exemplary embodiment of a terminal determining whether to send an uplink request signal is provided.

[0099] Please refer to Figure 7 This document illustrates a flowchart of a cell communication method provided in one embodiment of this application, which can be applied to a terminal. Based on Figure 2 In the illustrated embodiment, step 210 includes steps 211, 212, and 213.

[0100] Step 211: Determine whether to send an uplink request signal based on the triggering conditions or judgment factors.

[0101] Among them, the triggering conditions or judgment factors are either network-configured, predefined, or determined by the terminal implementation.

[0102] Optionally, the terminal may receive configuration information of triggering conditions or judgment factors sent by the first cell / the anchor cell of the first cell / the terminal's camping cell / other cells. Alternatively, the configuration information of triggering conditions or judgment factors is predefined by the communication protocol. Alternatively, the configuration information of triggering conditions or judgment factors is determined by a preset algorithm within the terminal.

[0103] Optionally, the triggering conditions or judgment factors can be configured by the core network equipment. Alternatively, the triggering conditions or judgment factors can be configured by the access network equipment; for example, the access network equipment of the first cell, the access network equipment of the anchor cell of the first cell, the access network equipment of the cell where the terminal is camped, and the access network equipment of other cells, etc.

[0104] Optionally, the triggering conditions include at least one of the following: whether the first cell meets the cell selection conditions; whether the first cell meets the cell reselection conditions; the first cell meets the cell selection conditions; the first cell meets the cell reselection conditions; there is uplink data to be transmitted; the amount of uplink data is greater than or equal to the data amount threshold; the network instructs or enables the terminal to send an uplink request signal; the terminal acquires the SSB of the first cell but does not acquire the SIB1 of the first cell; the terminal does not acquire the SIB1 of the first cell; the channel quality of the SSB of the first cell is greater than or equal to the quality threshold; the frequency priority of the first cell is higher than the frequency priority of other cells; other cells include the terminal's camp cell; the network instructs the terminal to access the first cell; the network instructs the terminal to perform a random access procedure; the network instructs the terminal to send an uplink request signal; the terminal receives a paging message; the terminal needs to transmit downlink data; the network instructs the terminal to access the first cell; the network instructs the terminal to send an uplink request signal in the first cell.

[0105] Optionally, the judgment factors include at least one of the following: channel quality of the first cell; RSRP of the first cell; RSRQ of the first cell; network slices supported by the first cell; network slices supported by the frequency of the first cell; network slices required by the terminal; list of allowed cells; list of disallowed cells; data status of uplink data; data status of downlink data; paging information; reception status of SSB of the first cell; reception status of SIB1 of the first cell; frequency priority of the first cell; frequency priority of the terminal's camped cell; channel quality of the terminal's camped cell; whether the first cell has been excluded; first indication signal. The information includes: a first indication information used to indicate that the terminal is allowed to send an uplink request signal, or an indication information used to indicate that the terminal is not allowed to send an uplink request signal; a second indication information used to indicate the cell where the terminal is camped, or an indication information used to indicate that the terminal accesses the cell, or an indication information used to indicate that the terminal sends an uplink request signal in the cell where it is camped; a third indication information used to indicate the cell where the terminal is accessed, or an indication information used to indicate that the terminal sends an uplink request signal in the access cell; and a fourth indication information used to indicate the target cell, or an indication information used to indicate that the terminal sends an uplink request signal in the target cell, or an indication information used to indicate that the terminal accesses the target cell.

[0106] Optionally, the terminal sends an uplink request signal if the first condition is met; otherwise, it does not send an uplink request signal. Alternatively, the terminal sends an uplink request signal to a network device if the first condition is met; the network device may be the access network device of the target cell.

[0107] The first condition is related to the triggering condition or the judgment factor. The first condition is set based on the triggering condition, and / or, the first condition is set based on the judgment factor. For example, the first condition can be set to satisfy at least one of the triggering conditions, or the first condition can be set to ensure that at least one parameter of the judgment factor reaches a threshold value.

[0108] Optionally, the first condition is either network-configured, predefined, or determined by the terminal implementation.

[0109] For example, Table 1 provides several examples of the first condition.

[0110] Table 1

[0111] Step 212: Do not send an uplink request signal.

[0112] Optionally, the terminal may not send an uplink request signal if the first condition is not met.

[0113] Optionally, the terminal may perform a first action if the first condition is not met. The first action includes at least one of the following: entering the RRC idle state, for example, performing any of the actions described in 3GPP TS (Technical Specification) 38.331 5.3.11; recording or indicating the failure reason value as uplink request signal transmission failure; stopping the first timer (T390 timer), the first timer being used for the cell reselection process; performing at least one of the UAC (Unified Access Control) actions, for example, performing any of the actions described in 3GPP TS 38.331 5.3.14.4; performing at least one of the RRC connection failure actions; and determining that the second timer has timed out, the second timer being used for the RRC connection establishment process.

[0114] The T390 timer starts after the UE receives the RRC connection release message, ensuring the UE has sufficient time to complete cell measurement and evaluation during cell reselection. If the UE fails to complete cell reselection within the T390 timer period, the T390 timer expires, and the UE releases radio resources and enters an idle state. The T300 timer starts when the UE initiates an RRC connection request, ensuring the UE has sufficient time to interact with EUTRAN (Evolved Universal Terrestrial Radio Access Network) during RRC connection establishment. If the UE fails to establish an RRC connection within the T300 timer period, the UE releases radio resources and re-initiates the RRC connection request.

[0115] Step 213: Send an uplink request signal.

[0116] Optionally, the terminal sends an uplink request signal if the first condition is met. Alternatively, the terminal sends an uplink request signal to the target cell if the first condition is met.

[0117] In one alternative embodiment, if the terminal does not trigger the sending of an uplink request signal, or the uplink request signal fails to be sent, or the uplink request signal response fails, the terminal may perform the first action.

[0118] That is, after step 210, the terminal may also perform at least one of the following steps: If the uplink request signal fails to be sent, execute the first action; If no public information is sent in the first residential area, the first action will be carried out; If the network does not indicate that the uplink request signal was successfully received, perform the first action; for example, if the target cell does not indicate that the uplink request signal was successfully received, perform the first action. If the terminal determines that the uplink request signal has failed to be triggered, execute the first action; If the terminal determines that the uplink request signal request was unsuccessful, the first action is executed; If the terminal determines that the uplink request signal has not been responded to, the first action is executed.

[0119] The first action includes at least one of the following: entering the RRC idle state, for example, performing any of the actions described in 3GPP TS 38.3315.3.11; recording or indicating a failure reason value as uplink request signal transmission failure; recording or indicating a failure reason value as uplink request signal response failure; stopping the first timer (T390 timer), the first timer being used for the cell reselection process; performing at least one of the UAC actions, for example, performing any of the actions described in 3GPP TS 38.331 5.3.14.4; performing at least one of the RRC connection failure actions; determining that the second timer (T300 timer) has timed out, the second timer being used for the RRC connection establishment process; and performing at least one action of T300 timer timeout.

[0120] In summary, the method provided in this embodiment allows the terminal to determine whether to send an uplink request signal based on triggering conditions or judgment factors. When the first condition is met, the terminal sends an uplink request signal to the network; otherwise, it does not. Thus, the terminal can send an uplink request signal to the network, requesting the first cell to send public information (e.g., SIB1) to wake up the first cell and execute the communication process with the first cell based on the public information. This method provides a way for the terminal to operate in cells that do not send or actively send public information, improving the communication process within energy-saving cells.

[0121] The method provided in this embodiment gives a way to handle the failure of uplink request signal transmission, and improves the working mode of the terminal in the network energy-saving cell.

[0122] An exemplary embodiment is provided for a terminal to determine whether to send an uplink request signal on a target cell.

[0123] Please refer to Figure 8 The diagram illustrates a flowchart of a cell communication method provided in one embodiment of this application, which can be applied to a terminal. The method includes step 230.

[0124] Optionally, step 230 can also be implemented as a separate embodiment.

[0125] Optionally, step 230 can also be combined with... Figure 2 The illustrated embodiments can be combined to implement at least one embodiment. For example: the terminal determines to send an uplink request signal in the target cell; the terminal sends the uplink request signal to the target cell. Alternatively, the terminal determines to send an uplink request signal in the target cell; the terminal determines whether to send the uplink request signal; if it determines to send the uplink request signal, it sends the uplink request signal to the target cell; if it determines not to send the uplink request signal, it does not send the uplink request signal. Alternatively, the terminal determines whether to send the uplink request signal; if it determines to send the uplink request signal, it further determines to send the uplink request signal in the target cell; then it sends the uplink request signal to the target cell; if it determines not to send the uplink request signal, it does not send the uplink request signal.

[0126] Optionally, step 230 can be combined with Figure 7 At least one step in the illustrated embodiment is combined to implement at least one embodiment. Step 230 can be executed before or after step 211. For example, the terminal can execute step 230 to determine the target cell after determining that the first condition is met. The terminal can also execute step 230 to determine the target cell after determining that the first condition is met.

[0127] Step 230: Determine to send an uplink request signal in the target cell.

[0128] The target cell is either predefined, indicated by the network, or determined by the terminal.

[0129] For example, the target cell indication information can be predefined in the communication protocol.

[0130] For example, the terminal's last access cell (last serving cell) can send target cell indication information to the terminal (e.g., carried in an RRC connection release message, or carried in an RRC message, in system information, or in other messages). Alternatively, the terminal's camped cell can send target cell indication information to the terminal (e.g., carried in system information, or carried in a random access procedure message). Alternatively, the anchor cell of the first cell can send target cell indication information to the terminal (e.g., carried in system information, or carried in a random access procedure message). Alternatively, the first cell can send target cell indication information to the terminal (e.g., carried in an SSB).

[0131] For example, the target cell can be determined based on a pre-set algorithm within the terminal.

[0132] Optionally, the target cell includes: the terminal's camping cell, or the anchor cell of the first cell, or the first cell. The terminal's camping cell may include at least one of the following: the first cell, the anchor cell of the first cell, or other cells, where other cells include cells other than the first cell and the anchor cell.

[0133] Optionally, the terminal may send an uplink request signal if the first condition is met; or send an uplink request signal to the target cell if the first condition is met.

[0134] Optionally, when the terminal sends an uplink request signal to the second cell, the second cell can forward the uplink request signal to the first cell so that the first cell can respond to the uplink request signal. For example, the second cell can forward the uplink request signal to the first cell through core network equipment, or the second cell can directly forward the uplink request signal to the first cell. The second cell includes the anchor cell of the first cell, the terminal's camp cell, and other cells.

[0135] In summary, the method provided in this embodiment allows a terminal to send an uplink request signal to a target cell. The target cell can be a first cell or a second cell other than the first cell. The second cell then forwards the uplink request signal to the first cell. This requests the first cell to send public information (e.g., SIB1) to wake it up and enable communication with the first cell based on the public information. This method provides a way for the terminal to operate in cells that do not send or actively send public information, thus improving the communication process within energy-saving cells.

[0136] An exemplary embodiment of a terminal listening to paging messages in a first cell is provided.

[0137] Please refer to Figure 9 The diagram illustrates a flowchart of a cell communication method provided in one embodiment of this application, which can be applied to a terminal. The method includes step 240.

[0138] Optionally, step 240 can also be implemented as a separate embodiment.

[0139] Optionally, step 240 can also be combined with... Figure 2 The illustrated embodiments are combined to implement at least one embodiment. The order in which the steps are performed can be arbitrary.

[0140] Optionally, step 240 can be combined with Figure 7 At least one combination of steps in the illustrated embodiment constitutes at least one embodiment. The order in which the steps are executed can be arbitrary.

[0141] Optionally, step 240 can be combined with Figure 8 The illustrated embodiments are combined to implement at least one embodiment. The order in which the steps are performed can be arbitrary.

[0142] Step 240: Listen for paging messages in the first cell, or perform paging listening in the first cell.

[0143] For example, embodiments of this application provide two methods for monitoring paging messages of a first cell: a first method based on public information of the first cell; and a second method based on the first paging configuration. A terminal can monitor paging messages of the first cell using at least one of these two methods.

[0144] Category 1: The terminal listens to paging messages in the first cell based on public information of the first cell; or, listens to paging messages in the cell based on the paging search space configuration indicated by the first cell; the public information includes the paging search space configuration. Alternatively, the terminal performs paging listening in the first cell based on public information of the first cell; or, performs paging listening in the first cell based on the paging search space configuration indicated by the first cell.

[0145] Optionally, the public information of the first cell includes the paging search space configuration of paging messages, and the terminal can listen to the paging messages of the first cell according to the time and frequency location indicated by the paging search space configuration.

[0146] Optionally, when performing eavesdropping using the first method, the terminal needs to first receive public information from the first cell. The transmission of this public information is triggered by at least one of the following devices: core network equipment, access network equipment of the anchor cell of the first cell, access network equipment of the terminal's camp cell, and access network equipment of the first cell.

[0147] Optionally, the terminal can trigger the first cell to send public information in the manner described above. Figures 2 to 8 The method provided in any of the embodiments described.

[0148] The second category: listening to paging messages in the first cell according to the first paging configuration, or performing paging listening in the first cell according to the first paging configuration; wherein the first paging configuration includes at least one of the following: the first paging configuration is predefined; the first paging configuration is obtained from the last cell the terminal accessed; the first paging configuration is obtained from the last serving cell of the terminal; the first paging configuration is obtained from the anchor cell of the first cell; the first paging configuration is obtained from the stationed cell of the terminal.

[0149] When performing monitoring using the second method, the terminal may not need to obtain the public information of the first cell. Alternatively, the terminal may obtain the public information of the first cell, but the public information may not contain the paging search space configuration. Or, the terminal may obtain the public information of the first cell, and the public information may contain the paging search space configuration, but if the first paging configuration has a higher priority than the paging search space configuration, the terminal will prioritize using the first paging configuration to monitor paging messages from the first cell.

[0150] The first paging configuration is used to configure the search space for paging messages in the first cell. The first paging configuration can be predefined by a communication protocol. Alternatively, the first paging configuration can be configured by a network device to the terminal. The network device can be at least one of the following: the access network device of the cell the terminal last accessed, the access network device of the terminal's last serving cell, the access network device of the anchor cell of the first cell, the access network device of the cell where the terminal is camped, or a core network device.

[0151] Optionally, the terminal may first request and obtain the public information of the first cell. If the terminal obtains the public information of the first cell, it can listen for paging messages in the first cell based on the public information. If the terminal does not obtain the public information of the first cell, it can listen for paging messages in the first cell based on the first paging configuration.

[0152] For example, if the public information of the first cell is not obtained, the terminal can send a paging configuration retrieval request to the stationing cell or the anchor cell of the first cell. The paging configuration retrieval request is used to request the first paging configuration. The stationing cell or the anchor cell can send the first paging configuration to the terminal.

[0153] Alternatively, the first paging configuration is pre-obtained by the terminal (e.g., pre-configured by the last access cell / last serving cell / anchor cell / camping cell). If the public information of the first cell is not obtained, the terminal can directly use the first paging configuration to listen to the paging messages of the first cell.

[0154] The terminal can also listen for paging messages from the first cell directly according to the first paging configuration without requesting public information. That is, the terminal can request public information without sending an uplink request signal.

[0155] Correspondingly, the access network equipment of the first cell sends a paging message based on public information. Alternatively, the access network equipment of the first cell sends a paging message based on the paging search space in the public information. Or, the access network equipment of the first cell sends a paging message based on the first paging configuration.

[0156] In summary, the method provided in this embodiment allows the terminal to listen to paging messages in the first cell based on the public information of the first cell, and the terminal can also listen to paging messages in the first cell based on the first paging configuration. This method provides a way for the terminal to operate in cells that do not send or actively send public information, thus improving the communication process within energy-saving cells.

[0157] An exemplary embodiment of a terminal responding to a paging message from a first cell is provided.

[0158] Please refer to Figure 10 The diagram illustrates a flowchart of a cell communication method provided in one embodiment of this application, which can be applied to a terminal. The method includes step 250.

[0159] Optionally, step 250 can also be implemented as a separate embodiment.

[0160] Optionally, step 250 can also be combined with... Figure 2 The illustrated embodiments are combined to implement at least one embodiment. The order in which the steps are performed can be arbitrary.

[0161] Optionally, step 250 can be combined with Figure 7 At least one combination of steps in the illustrated embodiment constitutes at least one embodiment. The order in which the steps are executed can be arbitrary.

[0162] Optionally, step 250 can be combined with Figure 8 The illustrated embodiments are combined to implement at least one embodiment. The order in which the steps are performed can be arbitrary.

[0163] Optionally, step 250 can be combined with Figure 9 The illustrated embodiments are combined to implement at least one embodiment. Step 240 is executed before step 250. For example, the terminal can listen to paging messages based on public information and then respond to the paging messages based on the public information. Alternatively, the terminal can listen to paging messages based on public information and respond to the paging messages based on the first random access configuration. The terminal can also listen to paging messages based on the first paging configuration and respond to the paging messages based on the public information. Alternatively, the terminal can listen to paging messages based on the first paging configuration and respond to the paging messages based on the first random access configuration.

[0164] Step 250: In the first cell, respond to the paging message of the first cell.

[0165] For example, embodiments of this application provide two types of methods for responding to paging messages from a first cell: a first type based on public information of the first cell; and a second type based on a first random access configuration. A terminal can respond to paging messages from the first cell using at least one of these two methods.

[0166] Category 1: The terminal can respond to a paging message by performing at least one of the following methods: Respond to paging messages based on public information from the first community; Based on the public information of the first cell, a random access procedure is performed; Access the first community based on the public information of the first community; Based on the random access configuration indicated by SIB1 in the public information, respond to the paging message; Based on the random access configuration indicated by SIB1 in the public information, perform the random access procedure; Access the first cell based on the random access configuration indicated by SIB1 in the public information.

[0167] That is, the terminal may respond to the paging message in at least one of the following ways: sending a response message to the paging message to the first cell; performing a random access procedure to access the first cell; or accessing the first cell.

[0168] Optionally, the public information of the first cell includes a random access configuration. The terminal can initiate a random access procedure to access the first cell based on the random access configuration. After accessing the first cell, the terminal can send a paging message response message to the first cell. Alternatively, the first cell can send a paging message response message to the first cell through a random access procedure based on the random access configuration.

[0169] Optionally, when performing eavesdropping using the first method, the terminal needs to first receive public information from the first cell. The transmission of this public information is triggered by at least one of the following devices: core network equipment, access network equipment of the anchor cell of the first cell, access network equipment of the terminal's camp cell, and access network equipment of the first cell.

[0170] Optionally, the terminal can trigger the first cell to send public information in the manner described above. Figures 2 to 8 The method provided in any of the embodiments described.

[0171] Category 2: The terminal can respond to a paging message by performing at least one of the following methods: Based on the first random access configuration, respond to the paging message; Based on the first random access configuration, execute the random access procedure; Access the first cell based on the first random access configuration; The first random access configuration includes at least one of the following: the first random access configuration is predefined; the first random access configuration is obtained from the last cell accessed by the terminal; the first random access configuration is obtained from the last serving cell of the terminal; the first random access configuration is obtained from the anchor cell of the first cell; or the first random access configuration is obtained from the cell where the terminal is camped.

[0172] When responding to paging messages using the second method, the terminal may not need to obtain the public information of the first cell. Alternatively, the terminal may obtain the public information of the first cell, but the public information may not contain the random access configuration. Or, the terminal may obtain the public information of the first cell, and the public information may contain the random access configuration, but the first random access configuration has a higher priority than the random access configuration in the public information; in this case, the terminal will prioritize using the first random access configuration to respond to paging messages.

[0173] The first random access configuration is used to configure the random access resources of the first cell. The first random access configuration can be predefined by the communication protocol. Alternatively, the first random access configuration can be configured to the terminal by the network device. The network device can be at least one of the following: the access network device of the cell where the terminal last accessed, the access network device of the terminal's last serving cell, the access network device of the anchor cell of the first cell, the access network device of the cell where the terminal camps, or a core network device.

[0174] Optionally, the terminal may first request to obtain the public information of the first cell. If the terminal obtains the public information of the first cell, it can respond to the paging message of the first cell based on the public information. If the terminal does not obtain the public information of the first cell, it can respond to the paging message of the first cell based on the first random access configuration.

[0175] For example, if the public information of the first cell is not obtained, the terminal can send a random access configuration acquisition request to the camping cell or the anchor cell of the first cell. The random access configuration acquisition request is used to request the acquisition of the first random access configuration. The camping cell or the anchor cell can send the first random access configuration to the terminal.

[0176] Alternatively, the first random access configuration is obtained in advance by the terminal (e.g., pre-configured to the terminal by the last access cell / last serving cell / anchor cell / camping cell). If the public information of the first cell is not obtained, the terminal can directly use the first random access configuration to respond to the paging message of the first cell.

[0177] The terminal may also respond to the paging message of the first cell directly according to the first random access configuration without requesting public information. That is, the terminal may not send an uplink request signal to request public information.

[0178] Correspondingly, the access network equipment of the first cell receives a response message to the paging message based on the public information. Alternatively, the access network equipment of the first cell receives a random access message from the terminal based on the public information. Alternatively, the access network equipment of the first cell receives a response message to the paging message based on the random access configuration in the public information. Alternatively, the access network equipment of the first cell receives a random access message from the terminal based on the random access configuration in the public information. Alternatively, the access network equipment of the first cell receives a response message to the paging message based on the first random access configuration. Alternatively, the access network equipment of the first cell receives a random access message from the terminal based on the first random access configuration.

[0179] In summary, the method provided in this embodiment allows a terminal to respond to a paging message from a first cell based on the public information of that first cell, or it can respond to a paging message from a first cell based on a first random access configuration. This method provides a way for a terminal to operate in a cell that does not send or actively send public information, thus improving the communication process within a network-energy-saving cell.

[0180] Optional, see above. Figures 2 to 10 In the illustrated embodiment, when the first cell does not send or actively send public information, the first cell may not send an instruction message to the terminal to inform it of this situation.

[0181] At this point, the terminal can determine whether or not to send public information from the first cell based on the monitoring status of the first cell (e.g., not receiving public information from the first cell). The terminal can also determine whether or not to send public information from the first cell based on the cell type (e.g., whether the first cell is an NES cell or a SIB1 less cell). Alternatively, the terminal can determine whether or not to send public information from the first cell based on the terminal's camped cell, the anchor cell of the first cell, or instructions from other cells. The terminal can also communicate directly with the first cell based on instructions from the network side without needing to determine whether or not to send public information from the first cell.

[0182] In addition, the first cell can also inform the terminal in advance that it will not send or will not actively send public information. The following is an explanation of the scenario where the first cell informs the terminal in advance not to send or actively send public information.

[0183] Please refer to Figure 11 The diagram illustrates a flowchart of a cell communication method provided in one embodiment of this application, which can be applied to a terminal. The method includes the following steps.

[0184] Step 410: Receive first information from the first cell; wherein the first information is used to indicate at least one of the following: cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0185] Optionally, the terminal receives the first information sent by the first cell.

[0186] For example, the first information is carried by system information or by a dedicated RRC message.

[0187] Optionally, the first cell supports cell state switching: it can switch from a non-energy-saving state to an energy-saving state; or, from an active state to an inactive state; or, from actively sending public information to not sending or not actively sending public information.

[0188] When the first cell needs to perform a cell state handover, it can broadcast a first message to inform the terminals within the first cell of the cell state handover. The first message is used to indicate the cell state handover of the first cell.

[0189] Optionally, the first information may include time information; wherein the time information includes at least one of the following: time information used to indicate the cell state transition time of the first cell; time information used to indicate the time when the first cell does not transmit public information; time information used to indicate the time when the first cell transitions to not transmitting public information; time information used to indicate the time when the first cell is in an inactive state; time information used to indicate the time when the first cell is in an energy-saving state.

[0190] That is, the first cell can also inform the terminal of the time when it does not send or actively send public information through the first information. Among them, the time information can be used to indicate at least one of the following: start time (time point), end time (time point), duration, duration segment, time offset corresponding to the start time, and time offset corresponding to the end time.

[0191] After receiving the first information, the terminal can then execute the communication process related to the first cell based on the first information.

[0192] Optionally, when the first cell undergoes another cell state transition, for example, from energy-saving state to non-energy-saving state; or from inactive state to active state; or from not sending or not actively sending public information to actively sending public information, the first cell may send a third message. This third message indicates at least one of the following: a cell state transition of the first cell; the first cell actively sending public information; the first cell switching to actively sending public information; the first cell switching to an active state; or the first cell switching to a non-energy-saving state. The terminal receives the third message from the first cell.

[0193] In summary, the method provided in this embodiment, for a first cell that does not send or actively send public information, allows the first cell to send first information to inform the terminal that the first cell is not sending or actively sending public information, so that the terminal can execute the communication process based on the first cell's decision not to send or actively send public information. This method describes the terminal's operation in a cell that does not send or actively send public information, improving the communication process within energy-saving cells.

[0194] Please refer to Figure 12 The diagram illustrates a flowchart of a cell communication method provided in one embodiment of this application, which can be applied to an access network device in a first cell. The method includes the following steps.

[0195] Step 510: Send first information of the first cell; wherein the first information is used to indicate at least one of the following: cell state transition of the first cell; the first cell does not send public information; the first cell switches to not sending public information; the first cell switches to an inactive state; the first cell switches to an energy-saving state.

[0196] Optionally, after the first cell sends the first information, it can perform at least one of the following methods: not send public information; not actively send public information; switch to not send public information; switch to inactive state; switch to energy-saving state.

[0197] In summary, the method provided in this embodiment, for a first cell that does not send or actively send public information, allows the first cell to send first information to inform the terminal that the first cell is not sending or actively sending public information, so that the terminal can execute the communication process based on the first cell's decision not to send or actively send public information. This method describes the terminal's operation in a cell that does not send or actively send public information, improving the communication process within energy-saving cells.

[0198] After receiving the first information, the terminal can also send a second information to the first cell to negotiate with the first cell on matters related to the transmission of public information.

[0199] Please refer to Figure 13 This document illustrates a flowchart of a cell communication method provided in an embodiment of this application, which can be applied to a terminal and an access network device in a first cell. Based on Figure 11 or Figure 12 The embodiment shown may further include step 601 after sending / receiving the first information.

[0200] Step 601: The terminal sends the second information.

[0201] The terminal sends the second information to the first cell. The access network equipment in the first cell receives the second information sent by the terminal.

[0202] The second information is used to indicate at least one of the following: requesting the first cell not to change its cell state; requesting the first cell to send public information; requesting the first cell to continue sending public information; requesting the first cell not to enter an inactive state; requesting the first cell not to enter an energy-saving state; requesting the first cell to postpone entering an inactive state; requesting the first cell to postpone entering an energy-saving state; the terminal camping in the first cell; the inactive state time requested by the terminal; the non-energy-saving state time requested by the terminal; the active state time requested by the terminal; the energy-saving state time requested by the terminal; the time the terminal is located in the first cell; the terminal being within the range of the first cell.

[0203] That is, the terminal can use the second information to request the first cell not to perform a cell state handover and to request the first cell to continue to actively send public information.

[0204] The terminal can also indicate to the first cell, via the second information, the expected time for not sending or not actively sending public information (e.g., inactive state time, non-energy-saving state time, active state time, energy-saving state time). The expected time may include at least one of the following: expected start time (time point), expected end time (time point), expected time period, time offset corresponding to the expected start time, and time offset corresponding to the expected end time.

[0205] The terminal can also indicate its status to the first cell through the second information. The terminal status can include the time the terminal is located in the first cell (start time, end time, time period, time offset, etc.) and the terminal status can also include the range where the terminal is currently located in the first cell.

[0206] The first cell can adjust its cell status or the cell status handover strategy based on the second information in order to improve the communication efficiency between the first cell and the terminal.

[0207] For example, when the second information is used to indicate that the first cell should not change its cell state / request the first cell to send public information / request the first cell to continue sending public information / request the first cell not to enter an inactive state / request the first cell not to enter an energy-saving state / request the first cell to postpone entering an inactive state / the terminal is camped in the first cell / the terminal is within the range of the first cell, the first cell may not perform cell state switching within the first time period, and after the first time period ends, continue to send the first information to indicate the performance of cell state switching.

[0208] Alternatively, when the second information is used to indicate the inactive state time requested by the terminal / the non-energy-saving state time requested by the terminal / the active state time requested by the terminal / the energy-saving state time requested by the terminal / the time the terminal is located in the first cell, the first cell can perform cell state handover according to the time requested by the terminal / the indicated time.

[0209] Optionally, the terminal can determine whether to send the second information. If it determines to send the second information, it sends the second information. If it determines not to send the second information, it does not send the second information.

[0210] In summary, the method provided in this embodiment allows the terminal to send second information to the first cell after receiving the first information. This second information can request the first cell not to perform a cell state handover, or request the first cell to perform a cell state handover within a desired timeframe, or indicate the terminal's current state to the first cell. This facilitates negotiation between the first cell and the terminal regarding the network state of the first cell, improving communication efficiency between them.

[0211] After receiving the first information, the terminal can also perform cell reselection, or determine that the first cell is not allowed to access, camp, or use.

[0212] Please refer to Figure 14 This document illustrates a flowchart of a cell communication method provided in an embodiment of this application, which can be applied to a terminal and an access network device in a first cell. Based on Figure 11 or Figure 12 The embodiment shown may further include step 602 after sending / receiving the first information.

[0213] Step 602: If the terminal is camped in the first cell, it performs a cell reselection process; or, it reselects the cell to camp on. Or, the terminal determines that the first cell does not allow access, camping, or use.

[0214] Optionally, "the first cell is not allowed to access, camp, or use" can mean that the first cell is not allowed to access, camp, or use. For example, the terminal determines that the first cell is unavailable, cannot be selected to camp, is prohibited, cannot be selected, or cannot be reselected.

[0215] Alternatively, the terminal may determine within a second time period that access, camping, or use is not permitted in the first cell. The second time period could be 300 seconds.

[0216] Optionally, when the terminal learns that the first cell does not send or actively send public information, the terminal may reselect to camp on another cell, or reselect to access another cell.

[0217] For example, if the terminal is currently camped on the first cell, then after receiving the first information, the terminal cannot continue to camp on the first cell. The terminal will then perform cell reselection and reselect to camp on another cell.

[0218] In summary, the method provided in this embodiment allows the terminal to determine that the first cell is unavailable after receiving the first information. If the terminal is currently camped in the first cell, it can reselect to camp in another cell. This method provides a way for the terminal to operate in cells that do not send or actively send public information, thus improving the communication process within energy-saving cells.

[0219] After receiving the first information, the terminal can also send an uplink request signal to request public information.

[0220] Please refer to Figure 15 This document illustrates a flowchart of a cell communication method provided in an embodiment of this application, which can be applied to a terminal and an access network device in a first cell. Based on Figure 11 or Figure 12 The embodiment shown may further include step 603 after sending / receiving the first information.

[0221] Step 603: The terminal sends an uplink request signal, or determines whether to send an uplink request signal. The uplink request signal is used to request the acquisition of public information of the first cell.

[0222] Optionally, if the terminal does not receive SIB1 from the first cell, it may send an uplink request signal; or, if it does not receive SIB1 from the first cell, it may determine whether to send an uplink request signal.

[0223] For example, the relevant implementation method of step 603 can be found in [reference needed]. Figures 2 to 10 Any of the embodiments shown.

[0224] Optionally, steps 601, 602, and 603 described above can be arbitrarily combined to form new embodiments. Steps 601 and 602 can be combined to implement new embodiments. For example, the terminal feeds back the second information to the first cell and performs cell reselection.

[0225] Steps 601 and 603 are combined to implement a new embodiment. For example, the terminal sends uplink request signals to request public information by feeding back second information to the first cell.

[0226] Steps 602 and 603 are combined to implement a new embodiment. For example, the terminal sends an uplink request signal to request public information, and if the request fails, performs cell reselection. Alternatively, the terminal performs cell reselection, and if cell reselection fails, sends an uplink request signal to request public information.

[0227] Steps 601, 602, and 603 are combined to implement a new embodiment. For example, the terminal feeds back second information to the first cell, performs cell reselection, and sends an uplink request signal to request public information.

[0228] In summary, the method provided in this embodiment allows the terminal, upon receiving the first information, to send an uplink request signal to the network, requesting the first cell to send public information (e.g., SIB1) to wake up the first cell and execute the communication process with the first cell based on the public information. This method provides a way for the terminal to operate in cells that do not send or actively send public information, thus improving the communication process within energy-saving cells.

[0229] Energy consumption has become a significant component of operators' operating costs. According to a GSMA report, energy costs for mobile networks account for approximately 23% of operators' total costs. The majority of energy consumption comes from radio access networks, particularly active antenna units (AAUs), while data centers and fiber optic transmission account for a smaller share.

[0230] Network power consumption includes two types: - Dynamic components: such as the overhead during data transmission / reception; - Static components: such as the overhead of maintaining the necessary operation of wireless access devices, even when there is no continuous data transmission / reception.

[0231] This study should not only assess the potential benefits of network energy consumption, but also evaluate and balance the impact on network and user performance. For example, it should not have a particularly large impact on certain KPIs (Key Performance Indicators), such as: spectrum efficiency, capacity, user-perceived throughput (UPT), latency, UE power consumption, complexity, handover performance, call drop rate, and initial access performance.

[0232] Possible research directions include: 1. Study procedures and signaling method(s) to support on-demand SIB1 for UEs in idle / inactive mode, including: [RAN1 / 2 / 3]

[0233] • Triggering method by uplink wake-up signal using an existing signal / channel.

[0234] • Wake-up-signal configuration provisioning to UE.

[0235] Note: No modifications to the SSB will be discussed under this objective.

[0236] • Information exchange between gNBs, at least for the configuration of the wake-up signal, if necessary.

[0237] • Checkpoint for normative work in RAN#105.

[0238] This application aims to address how a UE can operate in a SIB1-less cell. A SIB1-less cell is one that transmits SSB but either transmits or does not actively transmit SIB1.

[0239] For example, the uplink request signal may be UL WUS, the first cell may be an NES cell, and the public information may include SIB1. Exemplary embodiments of applying the method provided in this application are given below.

[0240] In one alternative embodiment, a method for triggering and transmitting UL WUS is provided.

[0241] 1. The UE determines whether UL WUS transmission can be triggered, and / or, in which cell the UE transmits the UL WUS message. Optionally, at least one of the following may be included: a) The conditions for UL WUS transmission are either network-configured, predefined, or determined by the UE implementation.

[0242] b) Which cell UL WUS is transmitted in is predefined or indicated by the network.

[0243] c) The conditions for UL WUS transmission can be found in Table 1.

[0244] 2. The UE sends a UL WUS message to the network. Optionally, it may include at least one of the following: a) When the UE meets the UL WUS transmission conditions, it sends a UL WUS message to the network.

[0245] b) UL WUS message, used by the UE to request the NES cell to send public information, which includes at least SIB1.

[0246] c) UL WUS messages can be sent on the cell where the UE is currently camped (such as the anchor cell of the NES cell), or on the anchor cell of the NES cell, or sent by the UE on the NES cell.

[0247] d) Optionally, if UL WUS is sent to the currently stationed or anchor cell (i.e., a non-NES cell), the current base station will forward the SIB1 request information to the NES cell, or notify the NES cell to send SIB1.

[0248] 3. Optionally, if UL WUS transmission fails, or the NES cell does not send SIB1, or the network (NES or other cell) does not indicate successful UL WUS reception, or the UE considers UL WUS to have failed or the request unsuccessful or unresponsive, the UE may perform a first action, which includes at least one of the following: a) Perform the action of entering RRC IDLE (as described in any of the actions in 3GPP TS 38.331 5.3.11); b) Record or indicate the failure reason value as UL WUS transmission failure or response failure; c) Stop the T390 timer; d) Perform UAC actions (as described in at least one of the following in 3GPP TS 38.331 5.3.14.4); e) Perform at least one of the following actions: RRC connection reject (RRC connection failed); f) Consider the T300 timer to have timed out (furthermore, perform at least one of the actions that cause the T300 timer to time out).

[0249] Extended Solution: For SIB1-less NES cells (with SSB), handling received / related downlink paging messages. In this case, how to listen for paging, or obtain SIB1 or request SIB1 transmission, or how to respond to paging, can be done in one of the following ways: 1) Solution 1: The core network, the anchor cell base station, or the base station of the cell where the UE is currently camped informs the NES cell to send SIB1. Further, the UE listens for paging based on the received SIB1.

[0250] 2) Solution 2: Use a specific paging configuration to listen for paging messages from cells with an SSB but no SIB1. Further, the UE can request the SIB1 of the NES cell to respond to paging or access the cell, or the UE can use specific PRACH (Physical Random Access Channel) / RACH resources to respond to paging or access the cell. Optionally, the specific paging configuration and / or (P)RACH resources are predefined.

[0251] 3) Solution 3: The UE listens for paging in the NES cell. The paging listening configuration is obtained through the last serving cell or from the anchor cell / the UE's currently camped cell. Optionally, it can be obtained through RRC release or system information. Further, the UE can request SIB1 from the NES cell to respond to paging or access the cell, or the UE can use specific PRACH / RACH resources to respond to paging or access the cell. Optionally, the specific PRACH / RACH resources can be obtained through the last serving cell or from the anchor cell / the UE's currently camped cell. Optionally, they can be obtained through RRC release or system information.

[0252] Extended Implementation Example 1: Referring to Table 2, a UE cannot camp on the NES before NES cell wake-up (i.e., before SIB1 transmission), or can only camp on the anchor cell or other cells. For example, a UE camps on the anchor cell or other cells before NES cell wake-up. For example, a UE can camp on the NES cell after NES cell wake-up.

[0253] Table 2

[0254] Extended Implementation Example 2: Referring to Table 3, the UE camps on the NES cell before the NES cell wake UP (i.e., before SIB1 is sent); and camps on the NES cell after the NES cell wake UP. For example, the UE pre-camps on the NES cell before the NES cell wake UP (i.e., before SIB1 is sent), and then, based on the NES cell's public information (e.g., at least one of the information included in SIB1), ultimately camps on the NES cell, or, depending on whether it ultimately camps on the NES cell. Another example is that the UE sends a wake UP request upon discovering or detecting the NES cell, and camps on the NES cell after the NES cell wake UP. Yet another example is that the UE camps on the NES cell after the NES cell wake UP.

[0255] Table 3

[0256] The above method describes the process of how UL WUS messages are triggered and sent, thus clarifying the UL WUS process.

[0257] In another alternative embodiment, a method for handling SIB1 shutdown is provided.

[0258] In this case, after the NES cell switches to transmitting SIB1, or if the cell is in the SIB1 transmission state but wants to save energy, i.e., turn off SIB1, or not transmit SIB1, or not actively transmit SIB1, the following are the handling methods.

[0259] Option 1 (Compared to Option 2, Option 1 involves interaction between the NES cell and the UE, ensuring that both the UE and the network are aware of each other's next action or request, and can perform relevant processing or judgment): 1. The NES cell indicates first information, which indicates that the NES cell does not send SIB1, or that the NES cell switches to not sending SIB1, or that the NES cell switches to an inactive state.

[0260] a) Optionally, the first information is carried by system information, such as indicated by MIB (Master Information Block) or SIB1.

[0261] b) Optionally, the first information may also indicate the period of inactivity or non-transmission of SIB1 (including at least one of the following: start time, end time, period).

[0262] 2. The UE receives the first information and / or responds to the first information.

[0263] a) For example: The UE sends a second message to the network, which instructs the network that the UE wishes the network state not to change, or to send SIB1, or to continue sending SIB1, or not to enter inactive, or to postpone entering inactive (e.g., further, it can instruct the network: the time point / time period that the UE wishes the network to enter inactive), or that a UE is present in the cell or camped in the cell. Optionally, before sending the second message, the UE may determine whether to send the second message.

[0264] b) For example, the UE reselects to another cell, or the NES cell is deemed unavailable / cannot be camped / barred / cannot be selected / cannot be reselected (furthermore, the NES cell is deemed unavailable / cannot be camped / barred / cannot be selected / cannot be reselected for 300s or the time period mentioned above).

[0265] c) For example, the UE sends a UL WUS message to request the transmission of SIB1 (for specific implementation, please refer to the embodiments described above).

[0266] Option 2: 1. The NES cell does not send SIB1, or, switches to not sending SIB1.

[0267] 2. The UE sends a ULWUS message to request the transmission of SIB1. Alternatively, if the UE cannot receive SIB1, the UE sends a ULWUS message to request the transmission of SIB1 (for specific implementation details, please refer to the embodiments described above).

[0268] The above method describes the behavior when the network does not want to send SIB1, which can guarantee the performance of both the UE and the network.

[0269] Figure 16 This application shows a structural block diagram of a cell communication device provided in an exemplary embodiment. The device can be implemented as a terminal, or as part of a terminal. The device includes: The first transmitting module 701 is used to send an uplink request signal, or... The first processing module 703 is used to determine whether to send the uplink request signal, which is used to request the acquisition of public information of the first cell.

[0270] In one optional embodiment, the first sending module 701 is configured to determine whether to send the uplink request signal based on triggering conditions or judgment factors.

[0271] In one alternative embodiment, the triggering condition or judgment factor is network-configured, or predefined, or determined by the terminal implementation.

[0272] In an optional embodiment, the triggering conditions include at least one of the following: whether the first cell meets the cell selection condition; whether the first cell meets the cell reselection condition; the first cell meets the cell selection condition; the first cell meets the cell reselection condition; there is uplink data to be transmitted; the amount of the uplink data is greater than or equal to a data amount threshold; the network instructs or enables the terminal to send the uplink request signal; the terminal acquires the SSB of the first cell but does not acquire the SIB1 of the first cell; the terminal does not acquire the SIB1 of the first cell; the channel quality of the SSB of the first cell is greater than or equal to a quality threshold; the frequency priority of the first cell is higher than the frequency priority of other cells; the other cells include the cell where the terminal is camped; the network instructs the terminal to access the first cell; the network instructs the terminal to perform a random access procedure; the network instructs the terminal to send the uplink request signal; the terminal receives a paging message; the terminal needs to transmit downlink data; the network instructs the terminal to access the first cell; the network instructs the terminal to send the uplink request signal in the first cell.

[0273] In an optional embodiment, the determination factors include at least one of the following: channel quality of the first cell; Reference Signal Received Power (RSRP) of the first cell; Reference Signal Received Quality (RSRQ) of the first cell; network slices supported by the first cell; network slices supported by the frequency point of the first cell; network slices required by the terminal; a list of allowed cells; a list of disallowed cells; data status of uplink data; data status of downlink data; paging information; reception status of the Synchronization Broadcast Block (SSB) of the first cell; reception status of the System Information Block (SIB1) of the first cell; frequency point priority of the first cell; and the terminal. The frequency priority of the cell where the terminal is camped; the channel quality of the cell where the terminal is camped; whether the first cell is excluded; first indication information, which indicates that the terminal is allowed to send the uplink request signal, or, the first indication information indicates that the terminal is not allowed to send the uplink request signal; second indication information, which indicates the cell where the terminal is camped, or, indicates that the terminal accesses the cell where it is camped, or, indicates that the terminal sends the uplink request signal in the cell where it is camped; third indication information, which indicates the cell where the terminal is accessed, or, indicates that the terminal sends the uplink request signal in the access cell. The fourth indication information is used to indicate the target cell, or to indicate that the terminal sends the uplink request signal in the target cell, or to indicate that the terminal accesses the target cell.

[0274] In an optional embodiment, the first processing module 703 is configured to determine to send the uplink request signal in the target cell.

[0275] In one alternative embodiment, the target cell is predefined, or the target cell is indicated by the network, or the target cell is determined by the terminal.

[0276] In one optional embodiment, the target cell includes: the cell where the terminal is camped, or the anchor cell of the first cell, or the first cell.

[0277] In one alternative embodiment, the device includes at least one of the following: The first sending module 701 is used to send the uplink request signal when the first condition is met; The first sending module 701 is used to send the uplink request signal to the target cell; The first sending module 701 is used to send the uplink request signal to the target cell when a first condition is met.

[0278] In one alternative embodiment, the first condition is related to a triggering condition or a judgment factor.

[0279] In an optional embodiment, the first processing module 703 is configured to perform a first action if the uplink request signal fails to be sent; The first processing module 703 is configured to execute the first action when the first cell does not send the public information; The first processing module 703 is configured to perform the first action if the network does not indicate that the uplink request signal has been successfully received; The first processing module 703 is configured to execute the first action when the terminal determines that the uplink request signal has failed to be triggered; The first processing module 703 is configured to execute the first action when the terminal determines that the uplink request signal request has failed.

[0280] The first processing module 703 is configured to perform the first action when the terminal determines that the uplink request signal request has not been responded to.

[0281] In an optional embodiment, the first action includes at least one of the following: entering the Radio Resource Control (RRC) idle state; recording or indicating a failure reason value as an uplink request signal transmission failure; recording or indicating a failure reason value as an uplink request signal response failure; stopping a first timer, the first timer being used for the cell reselection process; performing at least one of the Unified Access Control (UAC) actions; performing at least one of the RRC connection failure actions; and determining that a second timer has timed out, the second timer being used for the RRC connection establishment process.

[0282] In one alternative embodiment, the device includes: The first receiving module 702 is used to listen to paging messages in the first cell, or to perform paging listening in the first cell.

[0283] In an optional embodiment, the first receiving module 702 is configured to listen to the paging messages of the first cell based on the public information of the first cell; or, listen to the paging messages of the cell based on the paging search space configuration indicated by the first cell; the public information includes the paging search space configuration; The first receiving module 702 is configured to perform paging monitoring in the first cell based on the public information of the first cell; or, to perform paging monitoring in the first cell based on the paging search space configuration indicated by the first cell.

[0284] In an optional embodiment, the first receiving module 702 is configured to listen to the paging messages of the first cell according to the first paging configuration, or to perform paging listening in the first cell according to the first paging configuration. The first paging configuration includes at least one of the following: the first paging configuration is predefined; the first paging configuration is obtained from the last cell accessed by the terminal; the first paging configuration is obtained from the last serving cell of the terminal; the first paging configuration is obtained from the anchor cell of the first cell; or the first paging configuration is obtained from the stationary cell of the terminal.

[0285] In an optional embodiment, the first processing module 703 is configured to respond to a paging message in the first cell.

[0286] In one optional embodiment, responding to the paging message of the first cell includes at least one of the following: responding to the paging message based on the public information of the first cell; performing a random access procedure based on the public information of the first cell; accessing the first cell based on the public information of the first cell; responding to the paging message based on the random access configuration indicated by SIB1 in the public information; performing a random access procedure based on the random access configuration indicated by SIB1 in the public information; and accessing the first cell based on the random access configuration indicated by SIB1 in the public information.

[0287] In one alternative embodiment, the device includes: The first receiving module 702 is used to receive the public information sent by the first cell; The transmission of the public information is triggered by at least one of the following devices: core network device, access network device of the anchor cell of the first cell, access network device of the cell where the terminal is camped, and access network device of the first cell.

[0288] In an optional embodiment, responding to the paging message of the first cell includes at least one of the following: responding to the paging message based on a first random access configuration; performing a random access procedure based on the first random access configuration; and accessing the first cell based on the first random access configuration; wherein the first random access configuration includes at least one of the following: the first random access configuration is predefined; the first random access configuration is obtained from the last cell accessed by the terminal; the first random access configuration is obtained from the last serving cell of the terminal; the first random access configuration is obtained from the anchor cell of the first cell; or the first random access configuration is obtained from the stationary cell of the terminal.

[0289] In an optional embodiment, the apparatus includes at least one of the following: a first processing module 703, configured not to reside in the first cell before the first cell transmits the public information; a first processing module 703, configured to reside in the anchor cell of the first cell before the first cell transmits the public information; a first processing module 703, configured to reside in other cells before the first cell transmits the public information; the other cells include cells other than the first cell and the anchor cell; a first processing module 703, configured not to reside in the first cell before the first cell is woken up; a first processing module 703, configured to reside in the anchor cell of the first cell before the first cell is woken up; a first processing module 703, configured to reside in the other cells before the first cell is woken up; the other cells include cells other than the first cell and the anchor cell; reside in the first cell after the first cell transmits the public information; reside in the first cell after the first cell is woken up.

[0290] In an optional embodiment, the apparatus includes at least one of the following: a first processing module 703, configured to reside in the first cell before the first cell transmits the public information; and a first processing module 703, configured to reside in the first cell after the first cell transmits the public information.

[0291] In one alternative embodiment, the public information includes SIB1.

[0292] In one alternative embodiment, the first cell includes a Network Energy Saving (NES) cell.

[0293] Figure 17 This application shows a structural block diagram of a cell communication device provided in an exemplary embodiment. The device can be implemented as a terminal, or as part of a terminal. The device includes: The second receiving module 705 is used to receive the first information of the first cell; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0294] In one alternative embodiment, the first information is carried by system information or by a dedicated RRC message.

[0295] In one optional embodiment, the first information includes time information; The time information includes at least one of the following: the time information is used to indicate the cell state transition time of the first cell; the time information is used to indicate the time during which the first cell does not transmit the public information; the time information is used to indicate the time during which the first cell transitions to not transmitting the public information; the time information is used to indicate the time during which the first cell is in the inactive state; and the time information is used to indicate the time during which the first cell is in the energy-saving state.

[0296] In one alternative embodiment, the device includes: The second sending module 704 is configured to send second information, the second information indicating at least one of the following: requesting the first cell not to change its cell state; requesting the first cell to send the public information; requesting the first cell to continue sending the public information; requesting the first cell not to enter the inactive state; requesting the first cell not to enter the energy-saving state; requesting the first cell to postpone entering the inactive state; requesting the first cell to postpone entering the energy-saving state; the terminal residing in the first cell; the inactive state time requested by the terminal; the inactive state time requested by the terminal; the active state time requested by the terminal; the energy-saving state time requested by the terminal; the time the terminal is located in the first cell; the terminal being within the range of the first cell.

[0297] In one alternative embodiment, the device includes: The second processing module 706 is used to perform a cell reselection process when the terminal is camped on the first cell. Alternatively, the second processing module 706 is used to reselect the cell where the terminal resides.

[0298] In one alternative embodiment, the device includes: The second processing module 706 is used to determine that the first cell is not allowed to access, stay, or use.

[0299] In one alternative embodiment, the device includes: The second transmitting module 704 is used to transmit an uplink request signal, or... The second processing module 706 is used to determine whether to send the uplink request signal, which is used to request the acquisition of the public information of the first cell.

[0300] In an optional embodiment, the second sending module 704 is configured to send the uplink request signal if the SIB1 of the cell is not received; or, The second processing module 706 is used to determine whether to send the uplink request signal if the SIB1 of the cell is not received.

[0301] In one alternative embodiment, the public information includes SIB1.

[0302] In one alternative embodiment, the first cell includes a Network Energy Saving (NES) cell.

[0303] Figure 18 A structural block diagram of a cell communication apparatus provided in an exemplary embodiment of this application is shown. This apparatus can be implemented as a network device, or as part of a network device, wherein the network device can be an access network device of a first cell. The apparatus includes: The third receiving module 708 is used to receive an uplink request signal, which is used to request the acquisition of public information of the first cell.

[0304] In one optional embodiment, receiving the uplink request signal includes at least one of the following: receiving the uplink request signal forwarded by the cell where the terminal is based; receiving the uplink request signal forwarded by the anchor cell of the first cell; receiving the uplink request signal sent by the core network; and receiving the uplink request signal sent by the terminal.

[0305] In one alternative embodiment, the device includes: The third sending module 707 is used to send public information; The transmission of the public information is triggered by at least one of the following devices: core network device, access network device of the anchor cell of the first cell, access network device of the terminal's camp cell, and access network device of the first cell.

[0306] In one optional embodiment, the apparatus includes at least one of the following: a third sending module 707, configured to send a paging message according to the public information; and a third sending module 707 configured to send a paging message according to a paging search space configuration indicated in the public information.

[0307] In one optional embodiment, the apparatus includes at least one of the following: a third sending module 707, configured to send the paging message according to a first paging configuration; The first paging configuration includes at least one of the following: the first paging configuration is predefined; the first paging configuration is sent by the last cell the terminal accesses; the first paging configuration is sent by the last serving cell of the terminal; the first paging configuration is sent by the anchor cell of the first cell; or the first paging configuration is sent by the stationary cell of the terminal.

[0308] In one optional embodiment, the device includes at least one of the following: a third processing module 709, configured not to send the public information; a third processing module 709, configured not to actively send the public information; a third processing module 709, configured to switch to not sending the public information; a third processing module 709, configured to switch to an inactive state; a third processing module 709, configured to switch to an energy-saving state.

[0309] In one alternative embodiment, the public information includes SIB1.

[0310] In one alternative embodiment, the first cell includes a Network Energy Saving (NES) cell.

[0311] Figure 19 A structural block diagram of a cell communication apparatus provided in an exemplary embodiment of this application is shown. This apparatus can be implemented as a network device, or as part of a network device, wherein the network device can be an access network device of a first cell. The apparatus includes: The fourth sending module 710 is used to send the first information; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0312] In one alternative embodiment, the first information is carried by system information or by a dedicated RRC message.

[0313] In one optional embodiment, the first information includes time information; The time information includes at least one of the following: the time information is used to indicate the cell state transition time of the first cell; the time information is used to indicate the time during which the first cell does not transmit the public information; the time information is used to indicate the time during which the first cell transitions to not transmitting the public information; the time information is used to indicate the time during which the first cell is in the inactive state; and the time information is used to indicate the time during which the first cell is in the energy-saving state.

[0314] In one alternative embodiment, the device includes: The fourth receiving module 711 is configured to receive second information, the second information indicating at least one of the following: requesting the first cell not to change its cell state; requesting the first cell to send the public information; requesting the first cell to continue sending the public information; requesting the first cell not to enter the inactive state; requesting the first cell not to enter the energy-saving state; requesting the first cell to postpone entering the inactive state; requesting the first cell to postpone entering the energy-saving state; the terminal residing in the first cell; the inactive state time requested by the terminal; the inactive state time requested by the terminal; the active state time requested by the terminal; the energy-saving state time requested by the terminal; the time the terminal is located in the first cell; the terminal being within the range of the first cell.

[0315] In one alternative embodiment, the device includes: The fourth receiving module 711 is used to receive an uplink request signal, which is used to request the acquisition of the public information of the first cell.

[0316] In one alternative embodiment, the public information includes SIB1.

[0317] In one alternative embodiment, the first cell includes a Network Energy Saving (NES) cell.

[0318] Figure 20 The diagram shows a schematic representation of the structure of a communication device (terminal or network device) provided in an exemplary embodiment of this application. The communication device includes: a processor 101, a receiver 102, a transmitter 103, a memory 104, and a bus 105.

[0319] The processor 101 includes one or more processing cores. The processor 101 executes various functional applications and information processing by running software programs and modules.

[0320] The receiver 102 and the transmitter 103 can be implemented as a communication component, which can be a communication chip, and can be called a transceiver.

[0321] The memory 104 is connected to the processor 101 via the bus 105.

[0322] The memory 104 can be used to store at least one instruction, and the processor 101 can execute the at least one instruction to implement the various steps in the above method embodiments.

[0323] Furthermore, the memory 104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), read-only memory (ROM), magnetic storage, flash memory, and programmable read-only memory (PROM).

[0324] When the communication device is implemented as a terminal, the processor and transceiver in the communication device involved in the embodiments of this application can execute the steps performed by the terminal in any of the methods shown above, which will not be repeated here.

[0325] In one possible implementation, when the communication device is implemented as a terminal, the transceiver is configured to send an uplink request signal, or the processor is configured to determine whether to send the uplink request signal, the uplink request signal being used to request the acquisition of public information of the first cell.

[0326] In another possible implementation, when the communication device is implemented as a terminal, the transceiver is used to receive the first information of the first cell; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0327] In another possible implementation, when the communication device is implemented as an access network device for the first cell, the transceiver is used to receive an uplink request signal, which is used to request the acquisition of public information of the first cell.

[0328] In another possible implementation, when the communication device is implemented as an access network device for the first cell, the transceiver is used to receive the first information of the first cell; Wherein, the first information is used to indicate at least one of the following: the cell state transition of the first cell; the first cell not sending public information; the first cell switching to not sending the public information; the first cell switching to an inactive state; the first cell switching to an energy-saving state.

[0329] In an exemplary embodiment, a computer-readable storage medium is also provided, which stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the cell communication method executed by a communication device provided in the above-described method embodiments.

[0330] In an exemplary embodiment, a chip is also provided, the chip including programmable logic circuitry and / or program instructions, which, when the chip is run on a communication device, enables the communication device to implement the cell communication method described above.

[0331] In an exemplary embodiment, a computer program product is also provided, which, when run on the processor of a communication device, causes the communication device to perform the cell communication method described above.

[0332] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0333] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cell communication method, characterized in that, The method is executed by a terminal, and the method includes: Send an uplink request signal, or determine whether to send the uplink request signal, the uplink request signal being used to request the acquisition of public information of the first cell.

2. The method according to claim 1, characterized in that, The step of determining whether to send the uplink request signal includes: Whether to send the uplink request signal is determined based on triggering conditions or judgment factors. The triggering conditions or judgment factors are either network-configured, predefined, or determined by the terminal implementation. The triggering conditions include at least one of the following: whether the first cell meets the cell selection conditions; whether the first cell meets the cell reselection conditions; the first cell meets the cell selection conditions; the first cell meets the cell reselection conditions; there is uplink data to be transmitted; the amount of the uplink data is greater than or equal to a data amount threshold; the network instructs or enables the terminal to send the uplink request signal; the terminal obtains the synchronization signal block (SSB) of the first cell but does not obtain the system information block (SIB1) of the first cell; the terminal does not obtain the SIB1 of the first cell; the channel quality of the SSB of the first cell is greater than or equal to a quality threshold; the frequency priority of the first cell is higher than the frequency priority of other cells; the other cells include the cell where the terminal is camped; the network instructs the terminal to access the first cell; the network instructs the terminal to perform a random access procedure; the network instructs the terminal to send the uplink request signal; the terminal receives a paging message; the terminal needs to transmit downlink data; the network instructs the terminal to access the first cell; the network instructs the terminal to send the uplink request signal in the first cell. The judgment factors include at least one of the following: channel quality of the first cell; reference signal received power (RSRP) of the first cell; reference signal received quality (RSRQ) of the first cell; network slices supported by the first cell; network slices supported by the frequency point of the first cell; network slices required by the terminal; list of allowed cells; list of disallowed cells; data status of uplink data; data status of downlink data; paging information; reception status of the SSB of the first cell; reception status of the SIB1 of the first cell; frequency point priority of the first cell; frequency point priority of the cell where the terminal is camped; channel quality of the cell where the terminal is camped; whether the first cell has been excluded; first indication. The information includes: first indication information, which indicates that the terminal is allowed to send the uplink request signal, or, the first indication information indicates that the terminal is not allowed to send the uplink request signal; second indication information, which indicates the cell where the terminal is camped, or, indicates that the terminal accesses the cell where it is camped, or, indicates that the terminal sends the uplink request signal in the cell where it is camped; third indication information, which indicates the cell where the terminal is accessed, or, indicates that the terminal sends the uplink request signal in the access cell; and fourth indication information, which indicates the target cell, or, indicates that the terminal sends the uplink request signal in the target cell, or, indicates that the terminal accesses the target cell.

3. The method according to claim 1 or 2, characterized in that, The method includes: determining to send the uplink request signal to the target cell. The target cell is predefined, or the target cell is indicated by the network, or the target cell is determined by the terminal. The target cell includes: the cell where the terminal is camped, or the anchor cell of the first cell, or the first cell.

4. The method according to any one of claims 1 to 3, wherein, The first cell is a cell that does not send or actively send the public information, or a cell that does not send or actively send system information block SIB1.

5. The method according to any one of claims 1 to 4, characterized in that, The sending of the uplink request signal includes at least one of the following: If the first condition is met, the uplink request signal is sent; Send the uplink request signal to the target cell; If the first condition is met, the uplink request signal is sent to the target cell. The first condition is related to the triggering condition or judgment factor.

6. The method according to any one of claims 1 to 5, characterized in that, The method further includes at least one of the following: If the uplink request signal fails to be sent, the first action is performed; If the first cell does not send the public information, the first action is performed; If the network does not indicate that the uplink request signal was successfully received, perform the first action; If the terminal determines that the uplink request signal has failed to be triggered, the first action is performed. If the terminal determines that the uplink request signal request has failed, the first action is executed; If the terminal determines that the uplink request signal has not been responded to, the first action is performed. The first action includes at least one of the following: entering the Radio Resource Control (RRC) idle state; recording or indicating the failure reason value as uplink request signal transmission failure; recording or indicating the failure reason value as uplink request signal response failure; stopping the first timer, which is used for the cell reselection process; performing at least one of the Unified Access Control (UAC) actions; performing at least one of the RRC connection failure actions; and determining that the second timer has timed out, which is used for the RRC connection establishment process.

7. The method according to any one of claims 1 to 6, characterized in that, The method includes: Listen for paging messages in the first cell, or perform paging listening in the first cell. The monitoring of paging messages in the first cell includes: Based on the public information of the first cell, listen to the paging messages of the first cell; or, based on the paging search space configuration indicated by the first cell, listen to the paging messages of the cell; the public information includes the paging search space configuration; The paging monitoring in the first cell includes: Based on the public information of the first cell, paging monitoring is performed in the first cell; or, based on the paging search space configuration indicated by the first cell, paging monitoring is performed in the first cell. The process of monitoring paging messages in the first cell, or performing paging monitoring in the first cell, includes: Listen to paging messages in the first cell according to the first paging configuration, or perform paging listening in the first cell according to the first paging configuration; The first paging configuration includes at least one of the following: the first paging configuration is predefined; the first paging configuration is obtained from the last cell accessed by the terminal; the first paging configuration is obtained from the last serving cell of the terminal; the first paging configuration is obtained from the anchor cell of the first cell; or the first paging configuration is obtained from the stationary cell of the terminal.

8. The method according to any one of claims 1 to 7, characterized in that, The method includes: In the first cell, respond to the paging message of the first cell. The response to the paging message of the first cell includes at least one of the following: responding to the paging message based on the public information of the first cell; performing a random access procedure based on the public information of the first cell; accessing the first cell based on the public information of the first cell; responding to the paging message based on the random access configuration indicated by SIB1 in the public information; and performing a random access procedure based on the random access configuration indicated by SIB1 in the public information. Based on the random access configuration indicated by SIB1 in the public information, access is made to the first cell.

9. The method according to claim 7 or 8, characterized in that, The method includes: Receive the public information sent by the first cell; The transmission of the public information is triggered by at least one of the following devices: core network device, access network device of the anchor cell of the first cell, access network device of the cell where the terminal is camped, and access network device of the first cell.

10. The method according to claim 8, characterized in that, The response to the paging message of the first cell includes at least one of the following: responding to the paging message based on the first random access configuration; performing a random access procedure based on the first random access configuration; or accessing the first cell based on the first random access configuration. The first random access configuration includes at least one of the following: the first random access configuration is predefined; the first random access configuration is obtained from the last cell accessed by the terminal; the first random access configuration is obtained from the last serving cell of the terminal; the first random access configuration is obtained from the anchor cell of the first cell; or the first random access configuration is obtained from the stationary cell of the terminal.

11. The method according to any one of claims 1 to 10, characterized in that, The method includes at least one of the following: Before sending the public information in the first cell, it does not reside in the first cell; An anchor cell that resides in the first cell before sending the public information in the first cell; Before sending the public information in the first cell, it resides in other cells; the other cells include cells other than the first cell and the anchor cell; It does not reside in the first cell before being woken up by the first cell; Anchor cells that reside in the first cell before the first cell is woken up; Before the first cell is woken up, it resides in one of the other cells; the other cells include cells other than the first cell and the anchor cell; After sending the public information in the first cell, it remains stationary in the first cell; After being woken up in the first cell, it remains stationary in the first cell.

12. The method according to any one of claims 1 to 11, characterized in that, The method includes at least one of the following: Before sending the public information in the first cell, it resides in the first cell; After sending the public information in the first cell, it remains stationary in the first cell; Before the first cell is woken up, it remains camped in the first cell. The public information includes SIB1.

13. A cell communication method, characterized in that, The method is executed by the access network equipment of the first cell, and the method includes: Receive an uplink request signal, which is used to request the acquisition of public information of the first cell.

14. The method according to claim 13, characterized in that, The receipt of the uplink request signal includes at least one of the following: The uplink request signal forwarded by the cell where the receiving terminal is based; Receive the uplink request signal forwarded by the anchor cell of the first cell; Receive the uplink request signal sent by the core network; Receive the uplink request signal sent by the terminal. The method includes: Send public information; The transmission of the public information is triggered by at least one of the following devices: core network equipment, access network equipment of the anchor cell of the first cell, access network equipment of the terminal's camp cell, and access network equipment of the first cell. The method further includes at least one of the following: Based on the aforementioned public information, send a paging message; A paging message is sent according to the paging search space configuration indicated in the public information.

15. The method according to claim 13 or 14, characterized in that, The method includes: The paging message is sent according to the first paging configuration; The first paging configuration includes at least one of the following: the first paging configuration is predefined; the first paging configuration is sent by the last cell the terminal accessed; the first paging configuration is sent by the last serving cell of the terminal; the first paging configuration is sent by the anchor cell of the first cell; or the first paging configuration is sent by the stationary cell of the terminal. The method further includes at least one of the following: Do not send the public information; do not actively send the public information; switch to not sending the public information; switch to inactive state; switch to power saving state. The public information includes SIB1.

16. A terminal, characterized in that, The terminal includes a processor and a memory, wherein the memory stores at least one instruction, which is loaded and executed by the processor to implement the cell communication method as described in any one of claims 1 to 12.

17. A network device, characterized in that, The network device includes a processor and a memory, wherein the memory stores at least one instruction, which is loaded and executed by the processor to implement the cell communication method as described in any one of claims 13 to 15.

18. A computer-readable storage medium, characterized in that, The readable storage medium stores executable instructions, which are loaded and executed by a processor to enable the communication device to implement the cell communication method as described in any one of claims 1 to 15.

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