Method, terminal device and network device for wireless communication

Abstract

A method, a terminal device and a network device for wireless communication are provided. The method for wireless communication comprises: a terminal device obtaining first information of a first cell, the first information being associated with system information and / or an SSB of the first cell; wherein the first information is obtained based on a first request message of the terminal device; or the first information is broadcast / indicated by a second cell.

Description

Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a method, terminal device, and network device for wireless communication. Background Technology

[0002] With the development of communication technology, wireless communication systems (such as new radio (NR) systems) have seen significant improvements in key indicators such as transmission rate, transmission latency, and connection scale, enabling them to support a wider range of business scenarios and applications. However, the continuous development of wireless communication systems has also brought new challenges to operators, such as energy consumption.

[0003] To address energy consumption issues, related technologies have proposed network energy-saving projects. However, how terminal devices can operate in energy-efficient communities under network energy-saving conditions is a problem that urgently needs to be solved. Summary of the Invention

[0004] This application provides a method, terminal device, and network device for wireless communication. The various aspects covered in this application are described below.

[0005] In a first aspect, a method for wireless communication is provided, comprising: a terminal device acquiring first information of a first cell, the first information being associated with system information and / or SSB of the first cell; wherein the first information is acquired based on a first request message from the terminal device; or, the first information is broadcast or indicated by a second cell.

[0006] In a second aspect, a method for wireless communication is provided, comprising: a terminal device sending a first message to a first cell, the first message indicating one or more of the following: requesting the first cell to change its state; requesting the first cell to send at least one of SSB, MIB, SIB, and paging messages; requesting the first cell to send some or all of the common signals; the terminal device having a need for data transmission or network access; requesting the first cell to activate or deactivate cell DTX / DRX; requesting the first cell to modify cell DTX / DRX; requesting the first cell to use recommended cell DTX / DRX parameters; and recommending cell DTX / DRX parameters to the first cell.

[0007] Thirdly, a method for wireless communication is provided, comprising: if a first cell is in a first state, a terminal device does not receive the PRS of the first cell or receives the PRS of the first cell according to first configuration information, wherein the first configuration information is used to indicate the PRS configuration of one or more cells; wherein the first state includes one or more of the following: power-saving state; off state; state in an inactive period of cell DTX / DRX; state in a period of using power-saving technology.

[0008] Fourthly, a method for wireless communication is provided, comprising: a terminal device receiving a first handover configuration sent by a first cell, the first handover configuration including one or more handover execution conditions; the terminal device performing cell handover according to the first handover configuration.

[0009] Fifthly, a method for wireless communication is provided, comprising: a first terminal device acquiring third information of a first cell, the third information being used to determine one or more of the following: whether the first terminal device can access / select / reselect the first cell; whether a second terminal device can access / select / reselect the first cell; whether the first cell is blocked; whether the first cell is a candidate cell; and whether the first cell is a reserved cell.

[0010] A sixth aspect provides a method for wireless communication, comprising: a second terminal device acquiring fourth information of a first cell; and / or the second terminal device performing one or more of the following: acquiring third information of the first cell, determining that the third information indicates reservation or prohibition, and ignoring the third information; wherein the fourth information is used to determine one or more of the following: whether the second terminal device can access / select / reselect the first cell; whether the first cell is prohibited; whether the first cell is a candidate cell; whether the first cell is a suitable or acceptable cell; and whether the first cell is a reserved cell.

[0011] A seventh aspect provides a method for wireless communication, comprising: a network device to which a first cell belongs receiving a first request message sent by a terminal device, the first request message being used to obtain first information of the first cell, the first information being associated with system information and / or SSB of the first cell; and the first cell sending the first information to the terminal device.

[0012] Eighthly, a method for wireless communication is provided, comprising: a network device belonging to a first cell receiving a first message sent by a terminal device, the first message indicating one or more of the following: requesting the first cell to change its state; requesting the first cell to send at least one of SSB, MIB, SIB, and paging messages; requesting the first cell to send some or all of the common signals; the terminal device having a need for data transmission or network access; requesting the first cell to activate or deactivate cell DTX / DRX; requesting the first cell to modify cell DTX / DRX; requesting the first cell to use recommended cell DTX / DRX parameters; and recommending cell DTX / DRX parameters to the first cell.

[0013] A ninth aspect provides a method for wireless communication, comprising: if a first cell is in a first state, then the network device to which the first cell belongs does not transmit a PRS or transmits a PRS according to first configuration information, the first configuration information being used to indicate the PRS configuration of one or more cells; wherein the first state includes one or more of the following: power-saving state; off state; state during an inactive period of cell DTX / DRX; state during a period of using power-saving technology.

[0014] In a tenth aspect, a method for wireless communication is provided, comprising: a network device to which a first cell belongs activating or deactivating the DTX / DRX configuration of the first cell using a first signaling.

[0015] Eleventhly, a method for wireless communication is provided, comprising: a network device to which a first cell belongs sending a first handover configuration to a terminal device, the first handover configuration including one or more handover execution conditions, the first handover configuration being used by the terminal device to perform cell handover.

[0016] In a twelfth aspect, a method for wireless communication is provided, comprising: a network device to which a first cell belongs sending third information about the first cell to a first terminal device, the third information being used to determine one or more of the following: whether the first terminal device can access / select / reselect the first cell; whether a second terminal device can access / select / reselect the first cell; whether the first cell is blocked; whether the first cell is a candidate cell; and whether the first cell is a reserved cell.

[0017] In a thirteenth aspect, a method for wireless communication is provided, comprising: a network device to which a second cell belongs sending first information of a first cell to a terminal device, the first information being associated with system information and / or SSB of the first cell.

[0018] In a fourteenth aspect, a terminal device is provided, comprising: an acquisition module configured to acquire first information of a first cell, the first information being associated with system information and / or SSB of the first cell; wherein the first information is acquired based on a first request message from the terminal device; or, the first information is broadcast / indicated by a second cell.

[0019] In a fifteenth aspect, a terminal device is provided, comprising: a transmitting module configured to transmit a first message to a first cell, the first message indicating one or more of the following: requesting the first cell to change its state; requesting the first cell to transmit at least one of SSB, MIB, SIB, and paging messages; requesting the first cell to transmit some or all of the common signals; the terminal device having a need for data transmission or network access; requesting the first cell to activate or deactivate cell DTX / DRX; requesting the first cell to modify cell DTX / DRX; requesting the first cell to use recommended cell DTX / DRX parameters; and recommending cell DTX / DRX parameters to the first cell.

[0020] In a sixteenth aspect, a terminal device is provided, comprising: a receiving module, configured to either not receive the PRS of the first cell or receive the PRS of the first cell according to first configuration information if the first cell is in a first state, wherein the first configuration information is used to indicate the PRS configuration of one or more cells; wherein the first state includes one or more of the following: an energy-saving state; a closed state; a state in an inactive period of cell DTX / DRX; or a state in a period of using energy-saving technology.

[0021] In a seventeenth aspect, a terminal device is provided, comprising: a receiving module for receiving a first handover configuration sent by a first cell, the first handover configuration including one or more handover execution conditions; and a handover module for performing cell handover according to the first handover configuration.

[0022] Eighteenth aspect, a terminal device is provided, the terminal device being a first terminal device, the terminal device comprising: an acquisition module, configured to acquire third information of a first cell, the third information being used to determine one or more of the following: whether the first terminal device can access / select / reselect the first cell; whether a second terminal device can access / select / reselect the first cell; whether the first cell is blocked; whether the first cell is a candidate cell; whether the first cell is a reserved cell.

[0023] In a nineteenth aspect, a terminal device is provided, the terminal device being a second terminal device, the terminal device comprising: an acquisition module configured to acquire fourth information of a first cell; and / or an execution module configured to perform one or more of the following: acquiring third information of the first cell, determining that the third information indicates reservation or prohibition, and ignoring the third information; wherein the fourth information is used to determine one or more of the following: whether the second terminal device can access / select / reselect the first cell; whether the first cell is prohibited; whether the first cell is a candidate cell; whether the first cell is a suitable or acceptable cell; and whether the first cell is a reserved cell.

[0024] In a twentieth aspect, a network device is provided, the network device being a network device belonging to a first cell, the network device comprising: a receiving module, configured to receive a first request message sent by a terminal device, the first request message being used to obtain first information of the first cell, the first information being associated with system information and / or SSB of the first cell; and a sending module, configured to send the first information to the terminal device.

[0025] In a twenty-first aspect, a network device is provided, the network device being a network device belonging to a first cell, the network device comprising: a receiving module, configured to receive a first message sent by a terminal device, the first message being configured to indicate one or more of the following: requesting the first cell to change its state; requesting the first cell to send at least one of SSB, MIB, SIB, and paging messages; requesting the first cell to send some or all of the public signals; the terminal device having a need for data transmission or network access; requesting the first cell to activate or deactivate the cell DTX / DRX; requesting the first cell to modify the cell DTX / DRX; requesting the first cell to use recommended cell DTX / DRX parameters; and recommending cell DTX / DRX parameters to the first cell.

[0026] In a twenty-second aspect, a network device is provided, the network device being a network device belonging to a first cell, the network device comprising: a transmitting module, configured to either not transmit a PRS or transmit a PRS according to first configuration information if the first cell is in a first state, the first configuration information being used to indicate the PRS configuration of one or more cells; wherein the first state includes one or more of the following: an energy-saving state; a disabled state; a state during an inactive period of cell DTX / DRX; or a state during a period of using energy-saving technology.

[0027] In a twenty-third aspect, a network device is provided, the network device being a network device belonging to a first cell, the network device comprising: an activation or deactivation module, used to activate or deactivate the DTX / DRX configuration of the first cell using a first signaling.

[0028] In a twenty-fourth aspect, a network device is provided, the network device being a network device belonging to a first cell, the network device comprising: a sending module, configured to send a first handover configuration to a terminal device, the first handover configuration including one or more handover execution conditions, the first handover configuration being used by the terminal device to perform cell handover.

[0029] In a twenty-fifth aspect, a network device is provided, the network device being a network device belonging to a first cell, the network device comprising: a first transmitting module, configured to transmit third information of the first cell to a first terminal device, the third information being used to determine one or more of the following: whether the first terminal device can access / select / reselect the first cell; whether a second terminal device can access / select / reselect the first cell; whether the first cell is blocked; whether the first cell is a candidate cell; and whether the first cell is a reserved cell.

[0030] In a twenty-sixth aspect, a network device is provided, the network device being a network device belonging to a second cell, the network device comprising: a transmitting module, configured to transmit first information of a first cell to a terminal device, the first information being associated with system information and / or SSB of the first cell.

[0031] In a twenty-seventh aspect, a terminal device is provided, including a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to invoke the computer programs in the memory to cause the terminal device to perform some or all of the steps of the methods of any one of the first to sixth aspects.

[0032] In a twentieth aspect, a network device is provided, including a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to invoke the computer programs in the memory to cause the network device to perform some or all of the steps of the methods of any one of the seventh to thirteenth aspects.

[0033] In a twentieth aspect, embodiments of this application provide a communication system including the aforementioned terminal device and / or network device. In another possible design, the system may further include other devices that interact with the terminal device or network device as described in the embodiments of this application.

[0034] In a thirtieth aspect, embodiments of this application provide a computer-readable storage medium storing a computer program that causes a computer to perform some or all of the steps in the methods described above.

[0035] In a thirty-first aspect, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of the methods described in the foregoing aspects. In some implementations, the computer program product may be a software installation package.

[0036] In a thirty-second aspect, embodiments of this application provide a chip including a memory and a processor, the processor being able to call and run a computer program from the memory to implement some or all of the steps described in the methods of the foregoing aspects.

[0037] In this embodiment, the terminal device can request (actively obtain) or obtain the first information of the first cell (such as an energy-saving cell, SIB-less cell, etc.) from the second cell, which helps the terminal device to camp / access / select / reselect the first cell according to the first information, and facilitates the operation of the terminal device in the first cell. Attached Figure Description

[0038] Figure 1 This is a system architecture example diagram of a wireless communication system applicable to embodiments of this application.

[0039] Figure 2 This is a flowchart illustrating the condition switching process.

[0040] Figure 3 This is a flowchart illustrating a method for wireless communication provided in an embodiment of this application.

[0041] Figure 4 This is a flowchart illustrating a method for wireless communication provided in another embodiment of this application.

[0042] Figure 5 This is a flowchart illustrating a method for wireless communication provided in another embodiment of this application.

[0043] Figure 6 This is a flowchart illustrating a method for wireless communication provided in another embodiment of this application.

[0044] Figure 7 This is a flowchart illustrating a method for wireless communication provided in another embodiment of this application.

[0045] Figure 8This is a flowchart illustrating a method for wireless communication provided in another embodiment of this application.

[0046] Figure 9 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application.

[0047] Figure 10 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application.

[0048] Figure 11 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application.

[0049] Figure 12 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application.

[0050] Figure 13 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application.

[0051] Figure 14 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application.

[0052] Figure 15 This is a schematic diagram of the structure of a network device provided in an embodiment of this application.

[0053] Figure 16 This is a schematic diagram of the structure of a network device provided in another embodiment of this application.

[0054] Figure 17 This is a schematic diagram of the structure of a network device provided in another embodiment of this application.

[0055] Figure 18 This is a schematic diagram of the structure of a network device provided in another embodiment of this application.

[0056] Figure 19 This is a schematic diagram of the structure of a network device provided in another embodiment of this application.

[0057] Figure 20 This is a schematic diagram of the structure of a network device provided in another embodiment of this application.

[0058] Figure 21 This is a schematic diagram of the structure of a network device provided in another embodiment of this application.

[0059] Figure 22 This is a schematic diagram of the communication device provided in the embodiments of this application. Detailed Implementation

[0060] Communication system architecture Figure 1This is a system architecture example diagram of a wireless communication system 100 applicable to embodiments of this application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographical area and may communicate with the terminal device 120 located within that coverage area.

[0061] Figure 1 An exemplary diagram shows a network device and two terminal devices. In at least one embodiment, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application does not limit the scope of the embodiments.

[0062] In at least one embodiment, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in this application.

[0063] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as: 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation mobile communication systems, satellite communication systems, and so on.

[0064] The terminal device in this application embodiment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in this application embodiment can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, vehicle-mounted device, etc. The terminal devices in the embodiments of this application can be mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, self-driving, remote medical surgery, smart grids, transportation safety, smart cities, and smart homes, etc. In at least one embodiment, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in V2X or D2D, etc. For example, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0065] The network device in this application embodiment can be a device for communicating with a terminal device. This network device can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master MeNB, auxiliary SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or similar entities, or combinations thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. Base stations can also be mobile switching centers, devices that perform base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, network-side devices in 6G networks, and devices that perform base station functions in future communication systems. Base stations can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0066] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0067] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0068] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0069] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform).

[0070] 5G application scenarios Currently, with people's pursuit of speed, latency, high-speed mobility, and energy efficiency, as well as the diversity and complexity of business in future life, the 3rd Generation Partnership Project (3GPP) international standards organization has begun to develop 5G. The main application scenarios of 5G are: enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), and massive machine-type communications (mMTC).

[0071] On the one hand, 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, and a detailed analysis must be conducted in conjunction with the specific deployment scenario.

[0072] A key feature of URLLC is low latency, where connection latency can reach 1 millisecond or less. It also supports highly reliable connections even at high speeds, such as 99.999% reliability at speeds of 500 km / h. Typical applications of URLLC include industrial automation, power system automation, remote medical operations (surgery), and traffic safety.

[0073] Typical characteristics of mMTC include: high connection density, small data volume, latency-insensitive services, low module cost, and long lifespan. Based on this, mMTC can include one or more of the following communication methods: communication in industrial wireless sensor networks, communication in video surveillance scenarios, and communication in wearable devices.

[0074] Radio Resource Control (RRC) Status In some scenarios, NR can also be deployed independently. To reduce air interface signaling, quickly restore radio connectivity, and quickly restore data services, 5G defines a new RRC state: the RRC Inactive (RRC_INACTIVE) state. This state differs from the RRC Idle (RRC_IDLE) and RRC Connected (RRC_CONNECTED) states. (1) RRC_IDLE state (abbreviated as idle state): Mobility is based on cell selection and reselection of the terminal device, paging is initiated by the core network (CN), and the paging area is configured by the CN. There is no terminal device access stratum (AS) context on the network device side. There is no RRC connection.

[0075] (2) RRC_CONNECTED state (simply called connected state): An RRC connection exists, and the network device and the terminal device have a terminal device AS context. The network device knows the location of the terminal device at the cell level. Mobility is controlled by the network device. Unicast data can be transmitted between the terminal device and the network device.

[0076] (3) RRC_INACTIVE state (abbreviated as inactive state): Mobility is based on cell selection and reselection of terminal device, there is a connection between core network and radio access network (RAN), the AS context of terminal device exists on anchor network device, paging is triggered by RAN, the paging area based on RAN is managed by RAN, and the network device side knows the location of terminal device at the paging area level based on RAN.

[0077] Conditional handover (CHO) To address the issues of frequent handovers and handover failures in high-speed mobile and high-frequency deployment scenarios, 3GPP introduced a condition-triggered handover process, or Conditional Handover (CHO), for LTE and NR systems in Rel-16. The basic principle of CHO is that the network pre-assigns a target cell to the terminal device and includes conditions in the handover command (HO command) to trigger the handover. The terminal device measures or evaluates the target cell based on the conditions configured on the network side. When the target cell meets the handover conditions, the terminal device executes the handover to that target cell according to the pre-configured handover command (i.e., triggering the random access procedure and sending a handover completion message). This avoids the problem of not being able to send measurement reports or receive handover commands in time when moving into poor coverage areas at high speed.

[0078] For Handover Requests (CHOs), the network can configure multiple candidate target cells in the handover command and configure CHO execution conditions for each candidate target cell. Each candidate target cell's CHO execution conditions can include one or more triggering events. In Rel-16, A3 and A5 events are available for CHO events; in Rel-17 NTN, A4 events can also be used. The terminal device can determine which target cell to access based on the configured CHO execution conditions.

[0079] The following is a brief introduction to the measurement events supported in NR. Currently, the measurement events supported in NR can include the following: A1 incident: The signal quality of the serving cell is higher than a threshold; A2 incident: The signal quality of the serving cell is below a threshold; Event A3: The signal quality of a neighboring cell is higher than the signal quality of a special cell (SpCell) by a certain threshold; A4 incident: The signal quality of the neighboring cell is higher than a threshold; Event A5: SpCell's signal quality is below a threshold 1, while the neighboring cell's signal quality is above a threshold 2; Event A6: The signal quality of the neighboring cell is one threshold higher than the signal quality of the secondary cell (SCell); B1 incident: Signal quality of neighboring cells with different technologies exceeds a threshold; Event B2: The signal quality of the primary cell (PCell) is below a threshold 1, and the signal quality of a neighboring cell of a different technology is above a threshold 2.

[0080] To facilitate understanding, the following will be combined with... Figure 2The process of conditional handover is described below. It should be understood that the source network device (source cell) mentioned below can refer to the network device (cell) that provides services to the terminal device before the handover, and the target network device (target cell) can refer to the network device (cell) that provides services to the terminal device after the handover.

[0081] like Figure 2 As shown, in step 201, the source network device sends measurement configuration information to the terminal device, and the terminal device reports measurements based on this configuration. In step 202, the source network device and the target network device exchange handover preparation information. In step 203, the source network device sends a conditional handover command to the terminal device, which may carry the handover conditions for the cell. In step 204, when the conditional handover command is met, the terminal device synchronizes with the target network device.

[0082] Network energy saving With the development of communication technology, wireless communication systems (such as NR systems) have seen significant improvements in key indicators such as transmission rate, transmission latency, and connection scale, enabling them to support a wider range of business scenarios and applications. However, the continuous development of wireless communication systems has also brought new challenges to operators, such as energy consumption.

[0083] Currently, energy consumption has become a significant component of operators' operating costs. According to a report by the Global System for Mobile Communications Association (GSMA), energy costs for mobile networks account for approximately 23% of operators' total costs. The majority of this energy consumption comes from radio access networks, particularly active antenna units (AAUs), while data centers and fiber optic transmission account for only a smaller share.

[0084] The energy consumption of mobile networks can be divided into two categories: dynamic energy consumption and static energy consumption. Dynamic energy consumption can refer to the energy consumed during data transmission / reception, while static energy consumption can refer to the energy consumed to maintain the operation of necessary wireless access equipment, even when there is no continuous data transmission / reception.

[0085] The GSMA report only assessed the potential benefits of network energy consumption and did not evaluate the impact of network energy saving (NES) on the balance between network and user performance. The applicant argues that for projects involving network energy saving, NES should not significantly impact certain key performance indicators of terminal devices, such as spectral efficiency, capacity, user-perceived throughput (UPT), latency, power consumption, complexity, handover performance, call drop rate, and initial access performance.

[0086] In response to the energy consumption problem, relevant technologies (such as NR R18) have proposed network energy-saving projects. These projects have identified several potential research directions.

[0087] For example, at the RAN2#119 meeting, a solution group for network energy efficiency could include, for instance: 1. Adaptation of MIB / SSB / SIB. - Partial / Simplified SSB; 2. Increase of SSB / SIB periodicity; 3. On-demand SSB / SIB1 (FFS if there are enhancements for other SIBs) - Further research on on-demand MIB (FFS for on-demand MIB); 4. Receiving SSB / SIB on one carrier / cell and performing access to another carrier / cell. 5. Handover / Fast PCell change for NES under network power saving; - Conditional toggle or new configuration (CHO or new configuration), and / or group toggle (group HO); 6. Resource adaptation (frequency and time domain) -Including the following resources and periods: physical random access channel (PRACH), sounding reference signal (SRS), physical uplink shared channel (PUSCH), and physical uplink control channel (PUCCH). - Discontinuous transmitting (DTX) / Discontinuous reception (DRX) (cell DTX / DRX); - Measurement; - Configuration of reference signal type and reference signal pattern for connected mode. BWP adaptation. 7. Any cell activation / re-activation or UE wake up request signal (connected / idle) 8. Paging enhancements (including paging-less solutions); 9. Cell selection / reselection (i.e., cell prioritization also includes legacy UEs).

[0088] For example, at the RAN2#119 meeting, possible research directions for network energy efficiency could include: 1. Study group configuration and signaling for transitions for different solutions. - Pre-configuration and L1 / L2 signaling to trigger change of configuration. 2. Identify / capture the RAN2 impact on legacy for different solutions. 3. Awareness of the NES states at the UE side for different solutions. 4. The goal is to minimize downlink signaling while conserving network energy. 5. Consider the complexity and energy consumption of the terminal equipment. 6. UE assistance information for the specific network energy technique has both benefits and impacts on the UE / NW.

[0089] To achieve network energy conservation, as a feasible approach, related technologies have proposed energy-saving cells, or cells with energy-saving operating states, such as SSB-less cells and SIB-less cells. In some embodiments, energy-saving cells can achieve energy conservation by reducing the transmission of public signals, or through discontinuous transmission (DTX) and / or discontinuous reception (DRX). For ease of understanding, a brief introduction to SSB-less cells and SIB-less cells is provided below.

[0090] SSB-less community SSB-less cells can refer to cells that do not transmit (or broadcast, indicate, etc.) some or all of their SSBs, or cells that do not transmit some or all of their other public signals. In some embodiments, the fact that an SSB-less cell does not transmit some or all of its SSBs can be understood as the SSB-less cell not actively transmitting some or all of its SSBs. In other words, while legacy cells normally transmit or broadcast SSBs and other information for terminal devices to perform uplink synchronization or cell access, SSB-less cells do not actively transmit or broadcast SSBs and other information under normal circumstances.

[0091] In some embodiments, an SSB-less cell can be an SCell. That is, in some embodiments, certain SCells may not transmit some or all of their SSBs, and the cell may be a cell in the same frequency band as an SpCell or other SCells (i.e., an SSB-less cell may be in the same frequency band as an SpCell or other SCells).

[0092] As a feasible implementation, when a terminal device needs to synchronize with an SSB-less cell (or, as an SSB-less SCell), it can synchronize with that SSB-less cell through SpCell or other SCells. For example, the terminal device can obtain the SSB of the SSB-less cell from SpCell or other SCells and synchronize with the SSB-less cell based on that SSB.

[0093] In some embodiments, whether a cell transmits or broadcasts an SSB can be determined by the field (or parameter) of the absolute frequency of the SSB. absoluteFrequencySSB The following section describes this field.

[0094] The SSB frequency is applied to the serving cell. Unless otherwise stated, the SSB-related parameters (e.g., SSB index) provided for the serving cell refer to the SSB frequency. The cell defining SSB (CD-SSB) of the PCell is always on the synchronization grating. If the frequency can be identified by the value of the global synchronization channel number (GSCN), then the frequency can be considered to be on the synchronization grating (see TS 38.101-1

[15] ). If this field is not present, the SSB-related parameters are not present, for example, ServingCellConfigCommon In IE SSB- positionsinburst , SSB - periodicity serving cell and subcarrierSpacing It may not exist. If the field does not exist, the terminal device may obtain a timing reference from the appropriate SpCell or SCell, as described in Clause 4.1 of TS 38.213

[13] . This operation is supported only if the SCell from which the terminal device obtains a timing reference is in the same frequency band as the Cell from which the terminal device obtains a timing reference (i.e., SpCell or Cell). (Frequency of the SSB to be used for this serving cell. SSB related parameters (e.g., SSB index) provided for a serving cell refer to this SSB frequency unless mentioned otherwise. The CD-SSB of the PCell is always on the sync raster. Frequencies are considered to be on the sync raster if they are also identifiable with a GSCN value (see TS 38.101-1

[15] ). If the field is absent, the SSB related parameters should be absent, e.g. ssb-PositionsInBurst , ssb-periodicityServing Cell and subcarrierSpacing in ServingCellConfigCommonIE. If the field is absent, the UE obtains timing reference from the SpCell or an SCell if applicable as described in TS 38.213

[13] , clause 4.1. This is only supported in case theCell for which the UE obtains the timing reference is in the same frequencyband as the cell (ie the SpCell or the SCell, respectively) from which the UE obtains the timing reference.) For cells supporting Reduced Cap (RedCap), this field corresponds to the CD-SSB. In R18, the network energy efficiency project considers extending the intra-band approach to an inter-band scenario, meaning that SSB-less SCells can be inter-band cells with PCells or other SCells.

[0095] In the future, SSB-less cells can function as SCells or as independently operating cells.

[0096] SIB-less Community A SIB-less cell can refer to a cell that does not transmit (or broadcast, indicate, etc.) some or all of its SIBs, or it can refer to a cell that does not transmit some or all of its system information (SI). In some embodiments, the fact that a SIB-less cell does not transmit some or all of its SIBs can be understood as the SIB-less cell not actively transmitting some or all of its SIBs. In other words, while traditional (legacy) cells normally transmit or broadcast SIBs and other information to enable terminal devices to perform cell camping, cell access, cell selection / reselection, etc., SIB-less cells do not actively transmit or broadcast SIBs and other information under normal circumstances or in energy-saving situations.

[0097] In some embodiments, an SIB-less cell can be understood as a special type of SSB-less cell. That is, an SIB-less cell is also an SSB-less cell. In an SIB-less cell, the cell can transmit SSBs, but does not transmit some or all of the SIBs. Of course, in some embodiments, an SIB-less cell can also refer to a cell that neither transmits SIBs nor SSBs, and this application embodiment does not limit this.

[0098] This application does not limit the SIBs or SIs that an SIB-less cell does not transmit. For example, an SIB-less cell may not transmit SIB1, but may transmit other SIBs besides SIB1; or, an SIB-less cell may not transmit all SIBs (including SIB1, SIB2, SIB3, etc.); or, an SIB-less cell may not transmit MIBs or some or all (or at least some) of the information contained in a MIB, but may transmit other SIBs or SIs; or, an SIB-less cell may not transmit some or all of the information contained in an SIB (for example, not transmitting some information in SIB1, or not transmitting some information in SIB1 and other SIBs, or not transmitting some or all of the information in a MIB and SIB1, etc.).

[0099] In some embodiments, an SIB-less cell can be an SCell, such as a non-standalone SCell. However, this application is not limited to this; in some embodiments, an SIB-less cell can also be a PCell or a PSCell. In other embodiments, an SIB-less cell can also be a standalone cell.

[0100] It can be seen that the introduction of the above-mentioned energy-saving communities (such as SSB-less communities, SIB-less communities, etc.) can save energy consumption, but how the terminal equipment can work in the energy-saving community is an urgent problem to be solved.

[0101] To address the aforementioned problems, embodiments of this application provide a method, terminal device, and network device for wireless communication. The technical solutions of these embodiments specify how the terminal device operates in energy-saving cells under network energy-saving conditions. The embodiments of this application are described in detail below.

[0102] To facilitate understanding, some related concepts involved in the embodiments of this application will be introduced below.

[0103] Energy-saving cells / base stations: Energy-saving cells / base stations can refer to cells / base stations with lower energy consumption than the current energy consumption state, or cells / base stations that support or are able to enter or are in the first state, or cells / base stations that do not provide coverage and / or provide capacity, or cells or base stations that serve as auxiliary cells or base stations (such as SCell / PScell ​​or corresponding base stations), or cells that serve as SSB-less or SIB-less cells. To reduce network energy consumption, some devices in the network (such as base stations, cells, terminal devices, etc.) consume less energy in the first state than they do in the normal transmission state.

[0104] This application does not specifically limit the first state, as long as the energy consumption of the device in the first state is less than its energy consumption in the normal transmission state. For example, the first state may include one or more of the following states: abnormal transmission state, partial information not transmitted state, off state, energy saving state, NES state, low load state, DRX state, DTX state, on / off switching state, state of not transmitting all or part of the public channel or channel, state of not transmitting data, state of not transmitting terminal device-specific information, etc.

[0105] In some embodiments, when the first state is a DRX state, it may refer to the DRX on / off state. In some embodiments, when the first state is a DTX state, it may refer to the DTX on / off state.

[0106] In some embodiments, when the first state is the DRX state, it may refer to the DRX off state. In some embodiments, when the first state is the DTX state, it may refer to the DTX off state.

[0107] In other embodiments, the first state can be a DRX / DTX state, that is, DRX and DTX are configured simultaneously. In at least one embodiment, the configuration parameters for DTX / DRX can be the same or different.

[0108] In some embodiments, the first state can also be extended to: obtaining information about non-anchor cells / non-anchor base stations from anchor cells / anchor base stations, or obtaining information about energy-saving cells / energy-saving base stations from anchor cells / anchor base stations / auxiliary cells / auxiliary base stations (e.g., the first information, SSB, SIB, SI, etc. mentioned below).

[0109] Taking a cell / base station supporting or being able to enter a first state as an example, in some embodiments, the first state may refer to an abnormal transmission state or a state where some information is not transmitted. Abnormal transmission or partial information non-transmission may mean that not all data / signals / channels within the cell / base station can be transmitted normally; it may require transmission based on a terminal device's request or assistance from other cells / base stations. For example, if a cell / base station is not transmitting SSB and / or SIB, it may require transmission based on a terminal device's request, or it may require assistance from other cells / base stations. In some embodiments, the first state may refer to the cell / base station being able to shut down or partially shut down. In some embodiments, shutting down or partially shutting down a cell / base station may mean shutting down all or part of the cell / base station's radio frequency.

[0110] Anchor cell / anchor base station: Anchor cell / anchor base station can refer to a cell / base station that can assist energy-saving cells / base stations in sending messages or in assisting terminal devices in accessing energy-saving cells / base stations. For example, an anchor cell / anchor base station can refer to a cell / base station that can assist terminal devices in obtaining information from energy-saving cells / base stations (such as the first information, SSB, SIB, SI, etc. mentioned later), or an anchor cell / anchor base station can refer to a cell / base station that can carry information from energy-saving cells / base stations. In some embodiments, an anchor cell can refer to a cell that is not in the first state. In some embodiments, an anchor cell / anchor base station can refer to a cell that does not support energy saving or does not require energy saving, or a cell / base station that provides coverage.

[0111] However, the embodiments of this application are not limited to this. In some embodiments, the anchor cell may also have other capabilities. For example, the anchor cell may refer to the master control cell, which is responsible for controlling and managing multiple established data connections to ensure the speed and correctness of data transmission. The anchor cell may also be the cell responsible for establishing and maintaining RRC connections.

[0112] The following describes, in conjunction with Examples 1 to 6, how terminal devices operate in energy-saving communities under network energy-saving conditions.

[0113] It should be noted that the embodiments described below (e.g., the interaction processes involved) are described from the perspective of the interaction between the terminal device and the cell / base station. The terminal device and the base station can be, for example, respectively Figure 1 The terminal device 120 and network device (base station) 110 are shown in the diagram. For the sake of brevity, they will not be described in detail below.

[0114] It should be noted that the embodiments described below can be used alone or in any combination with other embodiments, and the embodiments of this application are not limited in this respect. For example, Embodiment 1 can be used alone or in combination with Embodiment 2 or Embodiment 3, or in combination with Embodiment 2 and Embodiment 4. Alternatively, Embodiment 2 can be used alone or in combination with Embodiment 3, or in combination with Embodiment 4 and Embodiment 5, etc. The embodiments described below can also be used in combination in ways not listed, but for the sake of brevity, they will not be described in detail here.

[0115] It should be noted that the embodiments one through six below are all intended to address issues related to how terminal devices work in energy-saving cells / energy-saving base stations.

[0116] These embodiments are described below.

[0117] Example 1 Example 1 aims to address how a terminal device can obtain the first information of a first cell (such as an SIB-less cell) when the first information in the first cell is not actively broadcast or sent, and / or how it operates in the first cell.

[0118] In Example 1, the terminal device can be a terminal device in RRC connected state, or a terminal device in RRC idle state or RRC inactive state.

[0119] Figure 3 This is a flowchart illustrating a method for wireless communication provided in an embodiment of this application. Figure 3 The method shown may include step S310, which is described below.

[0120] In step S310, the terminal device obtains the first information of the first cell.

[0121] The first cell can be understood as an energy-saving cell or a cell with an energy-saving base station, or a cell that supports network energy saving or is a cell with an energy-saving base station. For example, the first cell can be an SSB-less cell and / or an SIB-less cell mentioned above.

[0122] In some embodiments, the first cell may be a cell in one or more of the following states: energy saving state, NES state, off state, DRX state (e.g., during the inactive period of DRX), DTX state (e.g., during the inactive period of DTX), abnormal transmission state, partial information not transmitted state, low load state, on / off switching state, state of not transmitting all or part of the public channel or channel, state of not transmitting data, state of not transmitting terminal equipment-specific information, etc.

[0123] In some embodiments, the first cell may refer to a cell that uses / activates energy-saving technologies.

[0124] In some embodiments, energy-saving technologies may include at least one of time-domain energy saving, frequency-domain energy saving, spatial-domain energy saving, and code-domain energy saving technologies. For example, DTX / DRX is a time-domain energy saving technology.

[0125] In some embodiments, the first cell may refer to a cell with energy-saving capabilities, or a cell where energy-saving terminal equipment is stationed, selected, or accessed.

[0126] In some embodiments, the first cell may also refer to a cell that serves energy-saving terminal equipment.

[0127] In some embodiments, the first cell can refer to a cell that can be independently discovered or operated. For example, the first cell can be a cell that can be camped on, selected, reselected, or accessed. For example, the first cell can be a Pcell or PScell. For example, the first cell can be discovered or detected by sending a first signal. Furthermore, the first cell can independently achieve communication with the terminal device without relying on other cells. In some embodiments, the first signal can be a discovery signal, an SSB, or a simplified SSB, a non-SSB, etc.

[0128] In some embodiments, the first cell may also refer to a cell that cannot be independently discovered or cannot operate independently. In this case, the first cell may be discovered, indicated, or communicate with the terminal device by means of other cells, for example, by means of other cells.

[0129] In some embodiments, the first cell may refer to a cell that does not send (or broadcast, indicate, etc.) the first information.

[0130] In some embodiments, "the first cell does not send the first information" can mean that the first cell does not actively send the first information. For example, the first cell may still send the first information at the request of the terminal device or at the request of other base stations or cells. It should be noted that, unless otherwise specified, the "the first cell does not send information" (e.g., does not send SIB) mentioned in the embodiments of this application can be understood as the first cell not actively sending information. For the sake of brevity, this will not be repeated hereafter.

[0131] In some embodiments, the first cell may not send an SSB.

[0132] In some embodiments, the first cell may not send a MIB.

[0133] In some embodiments, the first cell may not transmit some or all of the SIBs.

[0134] In some embodiments, the first cell may not send SSB and SIB.

[0135] In some embodiments, the first cell may not transmit some or all of the information contained in the SIB.

[0136] In some embodiments, the first cell may not transmit system information other than the MIB.

[0137] In some embodiments, the first cell may not transmit some or all of the SI.

[0138] In some embodiments, the first cell may not transmit some or all of the information contained in the SI.

[0139] In some embodiments, the first cell may not send a paging message.

[0140] In some embodiments, the first cell may not send SI updates.

[0141] In some embodiments, the first cell may not transmit some or all of the common signals / common channels.

[0142] In some embodiments, the first cell may not send RACH / PRACH configuration.

[0143] In some embodiments, the first cell may not send cell selection, reselection, or camping information.

[0144] As an example, the first cell can refer to a cell that does not send system information for the first cell; for instance, the first cell can refer to a cell that does not send SIBs. For example, the first cell may not actively send or broadcast SIBs.

[0145] As another example, the first cell can refer to a cell that sends synchronization information for the first cell but does not send system information for the first cell. For example, the first cell can send an SSB but not a SIB; that is, the first cell can actively send or broadcast an SSB but not send or broadcast a SIB.

[0146] As another example, the first cell can refer to a cell that neither sends its own synchronization information nor its own system information. For instance, the first cell neither sends its SSB nor its SIB; that is, the first cell may not actively send or broadcast its SSB and SIB.

[0147] Having introduced the first residential community, the following section will introduce the first piece of information about it.

[0148] In some embodiments, the first information is associated with (or related to, corresponded to) the system information and / or synchronization information of the first cell. Alternatively, in some embodiments, the first information may be used to indicate the system information and / or synchronization information of the first cell.

[0149] This application does not limit the system information of the first cell, as long as the system information can be used to indicate how the first cell is configured, so that the terminal device can access the first cell and work correctly within the first cell based on the system information of the first cell. Taking an NR system as an example, the system information of the first cell may include MIB, SIB, etc. However, this application is not limited to this. For example, the system information of the first cell may also refer to relevant information in a future communication system used to indicate the configuration of the cell.

[0150] This application does not limit the synchronization information of the first cell, as long as the synchronization information can be used for uplink synchronization between the terminal device and the first cell. Taking an NR system as an example, the synchronization information of the first cell may include SSB and / or tracking reference signal (TRS). However, this application is not limited to this. For example, the synchronization information of the first cell may also be indication information used by the terminal device for uplink synchronization in a future communication system.

[0151] This application does not limit the specific content of the first information in its embodiments. In some embodiments, the first information may be used to indicate one or more of the following: some or all system information of the first cell; information related to accessing, camping on, or selecting or reselecting the first cell; information related to paging in the first cell; information about paging in the first cell, etc. In other words, in some embodiments, the first information may be used by the terminal device to perform one or more of the following: accessing, camping on, or selecting or reselecting the first cell; receiving paging messages from the first cell; discovering, detecting, or measuring the first cell, etc.

[0152] In some embodiments, the first information may include one or more of the following: MIB; part or all of SIB (or, SIB or at least part of SIB); part or all of the information contained in the SIB; part or all of SI (or, SI or at least part of SI).

[0153] This application does not specifically limit the inclusion of some or all of the SIBs in the first information. For example, the first information may include a MIB. For example, the first information may include a MIB and SIB1. Another example is that the first information may include all SIBs (such as SIB1, SIB2, SIB3, etc.). Or the first information may include some SIBs, such as SIB1; another example is that the first information may include some or all of the other SIBs besides SIB1 (e.g., the first information includes SIB2 and SIB3); yet another example is that the first information may include some or all of SIB1 and other SIBs (e.g., the first information includes SIB1 and SIB2).

[0154] In some embodiments, some or all of the information contained in an SIB can be understood as some or all of the information in a specific SIB. Taking SIB1 as an example, some or all of the information contained in the SIB can refer to some or all of the information in the SIB. Taking SIB2 and SIB3 as examples, some or all of the information contained in the SIB can refer to some or all of the information in SIB2 and / or SIB3.

[0155] In other words, in some embodiments, the first information may include one or more of the following: SIB; SIB1; some or all of the other SIBs besides SIB1; some or all of the information contained in the SIB; some or all of the SI; some or all of the information contained in the SI, etc.

[0156] In some embodiments, the terminal device can obtain the SIB by receiving and decoding the SSB.

[0157] In some embodiments, an SIB may contain one or more SIs, which may indicate different system information.

[0158] In some embodiments, the first information may include one or more of the following: slice information supported by the first cell; frequency point information of the first cell; frequency point priority information of the first cell; parameter information for selecting or reselecting to the first cell; information on whether the first cell prohibits access (bar, or whether the first cell prohibits access, or whether it is reserved, etc.); configuration information of common channels or common signals; time-frequency resource information of common channels or common signals; configuration information or time-frequency resource information for accessing, selecting or reselecting the first cell; and configuration information or time-frequency resource information for paging in the first cell.

[0159] This application embodiment does not limit the parameter information for selecting or reselecting to the first cell. For example, the parameter information for selecting or reselecting to the first cell may include one or more of the following: parameter information of the S criterion of the first cell, parameter information of the R criterion of the first cell.

[0160] This application does not specifically limit the common channel or common signal of the first cell. For example, the common channel or common signal of the first cell may include one or more of SSB, MIB, SIB, paging message, and SI.

[0161] In some embodiments, the broadcast state of the first information can be no broadcast, or in other words, the SI broadcast state of the first information can be no broadcast. Taking an NR system as an example, the first information... si-BroadcastStatus It can be set to not broadcasting. Taking SIB1 as an example, where the first message contains SIB1, SIB1's... si-BroadcastStatus It can be set to not broadcast. When the broadcast status of the first message is set to not broadcast, the first cell does not need to actively send the first message.

[0162] In some embodiments, the first information may be optional, meaning that the transmission or broadcasting of the first information is optional. For example, if the first information includes SIB1, SIB1 may be optional. In some embodiments, when the first information is optional, the first cell may not actively transmit the first information.

[0163] In some embodiments, the first information may be sent / broadcast / instructed upon request. Taking SIB1 as an example, SIB1 may be sent / broadcast / instructed only upon request. When the first information needs to be sent / broadcast / instructed only upon request, the first cell may not actively send the first information.

[0164] In some embodiments, the first information may be obtained based on a request from the terminal device. For example, the terminal device may send a first request message to a first cell to obtain the first information of the first cell. Alternatively, the terminal device may send a first request message to a second cell to obtain the first information of the first cell.

[0165] In some embodiments, the first information may be broadcast / instructed by the second cell. That is, the terminal device can obtain the first information of the first cell through other cells (such as the second cell).

[0166] In some embodiments, the first information may be obtained by the terminal device from the first cell. For example, the terminal device may send a first request message to the first cell to obtain the first information of the first cell.

[0167] In some embodiments, the first information may be obtained by the terminal device from the second cell. For example, the terminal device may send a first request message to the second cell to obtain the first information of the first cell. In at least one embodiment, the second cell may send the first information of the first cell upon receiving the first request message. Alternatively, the second cell may broadcast / indicate the first information of the first cell, and the terminal device may obtain the first information of the first cell through the information broadcast / indicated by the second cell.

[0168] This application does not limit the method by which the second cell broadcasts / indicates the first information. For example, the second cell may carry or indicate the first information of the first cell in its system information, or the first information may be carried in the system information of the second cell. In at least one embodiment, the aforementioned system information may be new system information, system information specific to the first cell, or system information used as auxiliary information.

[0169] This application does not specifically limit the second cell. For example, the second cell may be one or more of the following: the anchor cell of the first cell, the main cell of the terminal device; the primary and secondary cells of the terminal device, the cell that provides information about the first cell, the cell that the terminal device is currently accessing, camping on, or selecting, the cell associated with the first cell, the non-energy-saving cell, etc.

[0170] For an introduction to the anchor community of the first community, please refer to the previous text, which will not be repeated here.

[0171] This application does not limit the cells associated with the first cell. For example, the cell associated with the first cell may include the SCell, Pcell, or PScell ​​of the auxiliary terminal device accessing, camping on, selecting, or reselecting to the first cell. Alternatively, the cell associated with the first cell may be the cell where the terminal device is currently camped. Alternatively, the cell associated with the first cell may include cells capable of providing information about the first cell, etc.

[0172] As mentioned earlier, the terminal device can send a first request message to the first cell or the second cell to obtain the first information of the first cell. The first request message will be described in detail below.

[0173] In some embodiments, the first request message may be sent on a first resource. This application embodiment does not limit the first resource; for example, the first resource may be a pre-configured or pre-defined resource; or, the first resource may be a resource for random access, etc.

[0174] In some embodiments, the first resource may be a dedicated resource.

[0175] In some embodiments, the first resource may be a resource for random access, which means that the first resource may be a resource for sending a preamble, and / or that the first resource may be a PRACH resource.

[0176] In some embodiments, the resources used for random access correspond to (belong to) one or more of the following resources: resources of a first cell, resources of a second cell, dedicated resources for first information, and dedicated resources for requesting first information. For example, preamble resources and / or PRACH resources may correspond to one or more of the following resources: resources of a first cell, dedicated resources for first information, and dedicated resources for requesting first information.

[0177] Taking the first information as including some or all of the SIBs as an example, the dedicated resources corresponding to the first information for random access may include: the resources for random access being the resources corresponding to the SIB or the resources for random access being the resources corresponding to a specific SIB / SI (such as SIB1).

[0178] Taking the first information as including some or all of the SIBs as an example, the resources used for random access to the dedicated resources applied to requesting the first information may include: resources used for random access that request the SIB or resources that request a specific SIB / SI (such as SIB1).

[0179] In some embodiments, the resources for random access mentioned above are sent / indicated by the second cell to the terminal device. Alternatively, the resources for random access mentioned above can be sent / indicated by the first cell to the terminal device through the second cell. This application does not specifically limit the implementation method of the second cell carrying the resources for random access mentioned above. As one possible implementation, the resources for random access mentioned above can be carried in the SIB of the second cell, or in other words, the second cell can send / indicate the resources for random access to the terminal device through the SIB. That is, the second cell can indicate the resources for sending the first request message to the terminal device through the SIB. As another possible implementation, the resources for random access mentioned above can be carried in a dedicated RRC message (such as an RRC release message) of the second cell, or in other words, the second cell can send / indicate the resources for random access to the terminal device through a dedicated RRC message. That is, the second cell can indicate the resources for sending the first request message to the terminal device through a dedicated RRC message.

[0180] In some embodiments, the resources described above for random access may be in si-RequestConfig or si- RequestConfigSUL Configured in [the context]. Or, in some embodiments, the first resource may be [configured in the context of the configuration]. si- RequestConfig or si-RequestConfigSUL Configured in the system. For example, the second cell can be configured in a dedicated SIB or... si- RequestConfig or si-RequestConfigSUL Configure the resources (e.g., PRACH resources) used to carry the first request message.

[0181] In some embodiments, if the first request message is sent by the terminal device to the first cell, then the first resource may be a resource corresponding to the first cell.

[0182] In some embodiments, if the first request message is sent by the terminal device to the second cell, then the first resource may be a resource corresponding to the second cell.

[0183] The following example illustrates how a terminal device sends a first request message, using the first resource as an example of a resource used for random access. Assume the first information requested by the terminal device is a certain SI (Information Source). When the terminal device triggers the random access procedure, it can use the corresponding requested SI. si-RequestConfig or si-RequestConfigSUL The corresponding preamble and / or PRACH resources request the first information of the first cell. In some embodiments, the field RequestConfig or si- RequestConfigSUL Can be carried in SI-SchedulingInfo in IE. SI-SchedulingInfo Can carry fields schedulingInfoList To indicate the SI corresponding to the above SchedulingInfo And the type of the corresponding first information (e.g., which SIB or which SI, etc.). In some embodiments, si-RequestConfig or si- RequestConfigSUL SI in (e.g., SI-RequestResources The corresponding SI), in sequence SI- SchedulingInfo In schedulingInfoList SI in.

[0184] The embodiments of this application do not limit the type of the first information. For example, the type of the first information can be SIB1, or it can be MIB, or it can be other SIBs. Alternatively, the type of the first information can be SI, etc.

[0185] This application embodiment does not limit the information contained (carried) in the first request message. For example, the first request message may contain one or more of the following: the value of first information, the index of first information, the bit map of first information, the value of the requested first information, the index of the requested first information, and the bit map of the requested first information.

[0186] In some embodiments, the first request message can be used to indicate whether the terminal device requests first information, and / or the content of the first information requested by the terminal device. For example, the first request message may carry the value or index of the first information to indicate that the terminal device requests the first information, and specifically what content of the first information is requested (e.g., requesting all SIBs, or requesting SIB1). Alternatively, the first request message may carry the value or index of the requested first information to indicate which specific first information the terminal device requests. Or, the first request message may carry a bitmap of the first information or a bitmap of the requested first information to indicate that the terminal device requests the first information.

[0187] In some embodiments, if the terminal device indicates a request for first information through a bitmap of first information or a bitmap of requested first information, it can be assumed by default that the terminal device is requesting all first information of the first cell, that is, requesting all system information and / or SSBs not sent by the first cell. For example, if the first cell does not actively send SIB1 and SIB2, then if the bitmap of first information carried in the first request message indicates that the terminal device is requesting first information, it can be considered that the terminal device is requesting SIB1 and SIB2 of the first cell.

[0188] In some embodiments, each bit of the bitmap of the first information may correspond to different or separate system information or information identifiers.

[0189] This application does not limit the implementation of the bitmap for the first information or the bitmap for the requested first information. As one possible implementation, the bitmap for the first information or the bitmap for the requested first information may use 1 bit of indication information to indicate whether the first information is requested. For example, a value of "1" in the bitmap for the first information indicates that the terminal device requests the first information, and a value of "0" indicates that the terminal device does not request the first information. Alternatively, a value of "0" in the bitmap for the first information indicates that the terminal device requests the first information, and a value of "1" indicates that the terminal device does not request the first information. As another possible implementation, the bitmap for the first information or the bitmap for the requested first information may use multiple bits (two or more bits) of indication information to indicate whether the first information is requested. For example, a value of "yes," "true," "request," or other values ​​indicating a request for the first information indicates that the terminal device requests the first information; while a value of "no," "false," "not request," or other values ​​indicating not requesting the first information indicates that the terminal device does not request the first information.

[0190] In some embodiments, the first request message is sent when a first condition is met. In other words, the sending of the first request message is triggered by a first condition. The first condition is described below as an example.

[0191] In some embodiments, the first condition may be associated with one or more of the following: the terminal device is able to detect the synchronization signal of the first cell; the terminal device detects the SSB or TRS or other reference signal of the first cell; the channel quality information of the first cell; whether the terminal device is able to select or reselect to the first cell; whether the terminal device has data to transmit to the first cell; whether the slices supported by the first cell meet the needs of the terminal device, etc.

[0192] For example, the first condition may include one or more of the following: the terminal device detects an SSB or TRS or other reference signal of the first cell; the terminal device detects the presence of the first cell; the terminal device detects a discovery signal of the first cell; the channel quality of the first cell is greater than or equal to a first threshold; the first cell satisfies the R criterion or S criterion; the first cell is a cell selected or reselected by the terminal device; the terminal device selects or reselects to the first cell; the terminal device has data to be transmitted; the amount of data to be transmitted by the terminal device is greater than a second threshold; the slice required by the terminal device matches / contains / equals a slice supported by the first cell; a final check needs to be performed in the first cell; access, camping, or transmitting data needs to be done in the first cell; selection or reselection to the first cell needs to be performed.

[0193] In some embodiments, the terminal device performing a final check in the first cell can be understood as the terminal device checking whether the first cell has been barred or reserved based on first information (such as SIB1).

[0194] In some embodiments, when a terminal device has data to be transmitted, it can trigger a service request to request data transmission to the first cell. Therefore, in some embodiments, sending a first request message when the terminal device has data to be transmitted can also be understood as sending a first request message when the terminal device triggers a service request.

[0195] This application does not limit the values ​​of the first threshold and / or the second threshold; the first threshold and / or the second threshold can be arbitrarily set according to actual conditions. For example, the value of the first threshold can be 40dm or 50dm, etc. Similarly, the value of the second threshold can be 1000 bytes or 2000 bytes, etc.

[0196] Taking the first information as part or all of the SIBs as an example, under the condition of satisfying the first condition, the terminal device can send a first request message to the first cell or the second cell to obtain part or all of the SIBs of the first cell. As an example, when the terminal device detects the SSB of the first cell, it can send the first request message. As another example, when the terminal device has data to transmit to the first cell, it can send the first request message. As yet another example, when the terminal device needs to select or reselect to the first cell, it can send the first request message. As yet another example, when the terminal device detects the SSB of the first cell and the channel quality of the first cell is greater than or equal to a first threshold, the terminal device can send the first request message. As yet another example, when the terminal device has data to transmit and the slice required by the terminal device matches / contains / equals the slice supported by the first cell, the terminal device can send the first request message.

[0197] This application does not limit the carrying method of the first request message in its embodiments. In some embodiments, the first request message can be a message for random access. In some embodiments, the first request message can be an RRC-specific message. In some embodiments, the first request message can be uplink control information (UCI)-specific information or PUCCH. In some embodiments, the first request message can be MAC CE information.

[0198] When the first request message is an RRC-specific message, this application embodiment does not limit the type of the RRC-specific message. For example, the RRC-specific message can be UE assistance information; that is, the terminal device can request the first information through a UE assistance information message. Alternatively, the RRC-specific message can also be a dedicated RRC message, an RRC configuration message, or another RRC-specific message.

[0199] As an example, if the terminal device is in an RRC idle state or an RRC inactive state, the first request message can be a message for random access or an RRC-specific message.

[0200] As another example, if the terminal device is in RRC connected state, the first request message can be an RRC-specific message, a UCI-specific message, a random access message, or a measurement reporting message.

[0201] As another example, if the terminal device is switched from another cell, the first request message can be an RRC-specific message. This application does not specifically limit the conditions for switching the terminal device from another cell to the first cell. For example, the terminal device can be switched to the first cell when the channel quality of the cell currently served by the terminal device meets a certain threshold in the first cell, or based on the measurement reports from the terminal device.

[0202] In some embodiments, the first request message may be an existing message or an extension of an existing message. For example, the first request message may be an extension of an existing message for random access (such as the Msg 3 message). Alternatively, the first request message may be an extension of an existing RRC-specific message.

[0203] As one possible implementation, the terminal device can include it in random access messages (such as Msg 3 messages). RRCSystemInfoRequest In Internet Explorer, a request for first information is indicated. For example, the terminal device can... RRCSystemInfoRequest Fields in IE requested-SI-List The instruction requests the first information. In other words, the terminal device can... requested-SI-List Or its extension carries the first information of the requested first cell. Taking SIB1 as an example, the terminal device can... requested-SI-List or its extensions include SIB1.

[0204] As another possible implementation, the terminal device can... RRCSystemInfoRequest The message requests the first information of the first cell. Taking the first information including some or all SIBs as an example, the terminal device can... RRCSystemInfoRequest The message requests at least one of SIB1, SIB2, SIB3, SIB4, and SIB5.

[0205] As another possible implementation, the terminal device can... requestedSIB-List The IE or its extensions carry the first information of the requested first cell. Taking the first information including some or all of the SIBs as an example, the terminal device can... requestedSIB-List IE or its extensions include at least one of SIB1, SIB2, SIB3, SIB4, and SIB5 to indicate the first information requested.

[0206] As another possible implementation, the terminal device can... DedicatedSIBRequest The message requests the first information of the first cell. Taking the first information including some or all SIBs as an example, the terminal device can... DedicatedSIBRequest The message requests at least one of SIB1, SIB2, SIB3, SIB4, and SIB5.

[0207] In some embodiments, the first request message can be a new message, meaning the communication system can introduce a new message to send the first request message. Alternatively, the first request message can be a new message introduced by the communication system specifically for sending the first request message.

[0208] In some embodiments, when the first information contains different information, or when the first information contains multiple types of information, the first request message can be the same. In other words, when the terminal device requests the first information, the first request message is always the same for all requests made by the terminal device. Alternatively, when the terminal device requests the first information, the message used or the request format is the same for all requests made by the terminal device. For example, if the first information contains some or all of the SIBs, the first request message used to request SIB1 is the same as the first request message used to request other SIBs (e.g., SIB2, SIB3, etc.) or the request message is sent in the same format.

[0209] In some embodiments, different first information corresponds to the same first request message; or, multiple first information corresponds to the same first request message; or, different first information corresponds to different first request messages; or, multiple first information corresponds to different first request messages.

[0210] In other words, the first request message can be different when the first information contains different information, or when the first information contains multiple types of information. Or, to put it another way, when a terminal device requests the first information, the first request message can be different depending on the information contained in the requested first information. Alternatively, when a terminal device requests the first information, the message used or the request format may differ depending on the first information requested. For example, if the first information contains some or all of the SIBs, the first request message used to request SIB1 can be different from the first request message used to request other SIBs (such as SIB2, SIB3, etc.), or the format of the request message can differ.

[0211] In some embodiments, the first request message mentioned above may be the same or different from one or more of the following: the resource carrying the first request message, and the message carrying the first request message (such as an IE).

[0212] As an example, the same first request message when the first information contains different information can be understood as the first request message being sent through the same resources and IE for different information contained in the first information requested by the terminal device. Taking the first information containing some or all SIBs as an example, the first request message used to request SIB1 and the first request message used to request other SIBs (such as SIB2, SIB3, etc.) can be sent through the same resources and IE.

[0213] As another example, when the first information contains different information, the different first request messages can be understood as the first request messages being sent through different resources and / or Internet Explorers (IEs) depending on the different information contained in the first information requested by the terminal device. Taking the first information containing some or all SIBs as an example, the first request message used to request SIB1 and the first request message used to request other SIBs (such as SIB2, SIB3, etc.) can be sent through different resources and / or IEs. As one possible implementation, SIB1 can be requested through a specific resource or a predefined resource or a specific IE, while other SIBs can be requested through an on-demand process.

[0214] The preceding text described the process by which a terminal device obtains the first information of a first cell. In some embodiments, in addition to obtaining the first information of the first cell, the terminal device may also execute other processes to function normally in the first cell. The following provides an exemplary description of other processes executed by the terminal device in the first cell.

[0215] In some embodiments, if the first cell sends / broadcasts / indicates a synchronization signal (e.g., SSB or TRS or other reference signal) to the terminal device, the terminal device may perform one or more of the following: receive the synchronization signal through the first cell, measure the synchronization signal of the first cell, and perform cell selection and / or cell reselection and / or camping decisions based on the synchronization signal of the first cell. For example, the terminal device may perform R-criterion / S-criterion decisions based on the SSB or TRS or other reference signal of the first cell.

[0216] In some embodiments, the terminal device may perform one or more of the following actions based on the first information obtained: determining whether it can camp on the first cell; determining whether it can select or reselect to the first cell; performing a final check; determining whether to perform the RACH procedure in the first cell; receiving the PDCCH in the first cell; performing a transmission with the first cell; and receiving a paging message from the first cell.

[0217] As an example, a terminal device can determine whether it can camp on or reselect to the first cell, or select the first cell, based on the SSB, TRS, or other reference signals of the first cell, and / or, first information. For instance, after the terminal device obtains the SSB, TRS, or other reference signals of the first cell, or knows that the first cell exists, the terminal device sends a first request message to request the first information. Then, the terminal device determines whether to select, reselect, camp on, or access the first cell. As another example, the terminal device can determine whether to select the first cell by determining whether the first cell is barred and / or reserved and / or whether the slice supported by the first cell matches / contains / equals the slice required by the terminal device.

[0218] As another example, the terminal device can determine whether to perform a selection for the first cell, or whether to select the first cell, based on the SSB.

[0219] As one possible implementation, the terminal device can determine whether to perform cell selection or select a first cell based on the measurement results of SSB, TRS, or other reference signals. This application does not limit the measurement quantities of SSB, TRS, or other reference signals. For example, the measurement quantities of SSB, TRS, or other reference signals may include one or more of the following: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), reference signal strength indicator (RSSI), etc.

[0220] As another possible implementation, the terminal device may determine whether to perform cell selection or select a first cell based on one or more of the following: the measurement results of the first cell, the measurement results of other cells (such as neighboring cells), whether the terminal device has data to be transmitted, whether the amount of data to be transmitted by the terminal device is greater than a certain threshold (such as the second threshold mentioned above), the support of the first cell for slicing, and the support of other cells for slicing.

[0221] In some embodiments, a terminal device may access a first cell only when the measurement results of the first cell meet the S criterion or the cell selection criterion.

[0222] In some embodiments, whether a terminal device has data to be transmitted can be determined by one or more of the following: information about the data to be transmitted on the logical channel of the terminal device, and whether the terminal device has a service request.

[0223] In some embodiments, the support for slices by the first cell or other cells can be understood as whether the slices supported by the first cell or other cells match / include / are equal to the slices required by the terminal device.

[0224] As another possible implementation, when the channel quality of the first cell is greater than a certain threshold (such as the first threshold mentioned above), the terminal device can send a first request message to the first cell, and then the terminal device can determine whether to select the first cell.

[0225] As another example, the terminal device can determine whether to perform a reselection for the first cell, or whether to reselect to the first cell, based on the SSB, TRS, or other reference signals.

[0226] As one possible implementation, the terminal device can determine whether to perform cell reselection or reselect to the first cell based on the measurement results of SSB or TRS or other reference signals (such as RSRP, RSRQ, RSSI, etc.).

[0227] As another possible implementation, the terminal device can determine whether to perform cell reselection or reselect to the first cell based on one or more of the following: the measurement results of the first cell, the measurement results of other cells (such as neighboring cells), whether the terminal device has data to be transmitted, whether the amount of data to be transmitted by the terminal device is greater than a certain threshold (such as the second threshold mentioned above), the support of the first cell for slicing, and the support of other cells for slicing.

[0228] In some embodiments, a terminal device may access the first cell only when the measurement results of the first cell meet the R criterion and / or the S criterion or the cell reselection criterion.

[0229] In some embodiments, whether a terminal device has data to be transmitted can be determined by one or more of the following: information about the data to be transmitted on the logical channel of the terminal device, and whether the terminal device has a service request.

[0230] In some embodiments, the support for slices by the first cell or other cells can be understood as whether the slices supported by the first cell or other cells match / include / are equal to the slices required by the terminal device.

[0231] As another possible implementation, when the channel quality of the first cell is greater than a certain threshold (such as the first threshold mentioned above), the terminal device can send a first request message to the first cell, and then the terminal device requests whether to reselect to the first cell.

[0232] As another example, the terminal device can determine whether it can camp on the first cell, whether it can select or reselect the first cell, or perform a final check based on the first information of the first cell. Taking the first information containing the SIB of the first cell as an example, the terminal device can determine whether it can camp on the first cell, whether it can select or reselect the first cell, or perform a final check based on the SIB information of the first cell.

[0233] As another example, the terminal device can camp on the first cell. In other words, after obtaining the first information about the first cell, the terminal device can camp on the first cell or determine whether to camp on the first cell.

[0234] As another example, the terminal device can listen to the paging message of the first cell based on the first information, or in other words, the terminal device can listen to the paging message from the first cell.

[0235] In some embodiments, the listening configuration for paging messages and / or system information update indications (or system information update indication information, system information updates, etc.) of the first cell is determined based on the first information. For example, the listening configuration for paging messages and / or system information update indications of the first cell is obtained from the SIB (such as SIB1) of the first cell. In this way, the terminal device can listen for paging messages and / or system information update indications from the first cell after obtaining the first information of the first cell or sending a first request message to the first cell. For example, if the terminal device measures the SSB or TRS or other reference signal of the first cell, or if it believes (or determines) that the first cell exists, the terminal device can send a first request message to request the first information. Then, the terminal device listens for paging messages and / or system information update indications from the first cell.

[0236] In some embodiments, when there is a system information update, the first cell (such as the base station of the first cell) may send the first information of the first cell.

[0237] In some embodiments, when a paging message is received, the first cell (such as the base station of the first cell) may send the first information of the first cell, or the core network corresponding to the first cell may instruct the first cell to send the first information of the first cell.

[0238] This application embodiment does not limit the sending location of paging messages in the first cell. As one possible implementation, the sending location of paging messages can refer to existing paging message sending locations; that is, the sending location of paging messages in the first cell can be a traditional (legacy) location. As another possible implementation, the first cell can send paging messages using a specific configuration or a specific location. For example, this specific location can appear periodically; for instance, within X milliseconds, the terminal device can listen for paging messages in the first m milliseconds and not listen for paging messages in the following (Xm) milliseconds, because there is no paging message sending location in the following (Xm) milliseconds. As yet another possible implementation, the sending location of paging messages in the first cell appears intermittently; for example, the sending location of paging messages follows an on / off pattern. In this way, the terminal device can listen for paging messages when the paging message sending location is in the on state and not listen for paging messages when the paging message sending location is in the off state. As another possible implementation, the terminal device can listen for paging messages at all paging locations, meaning that the time when the terminal device listens for paging messages is independent of the terminal device's identifier (UE ID).

[0239] It should be noted that the sending location of the paging message mentioned above can be used by terminal devices to listen for paging messages.

[0240] It should be noted that the above method for determining the sending location of paging messages can also be used to determine the sending location of updated system information, or the sending location of updated system information update instructions (such as P-RNTI scrambled information), in the case of system information updates.

[0241] It should be noted that the location determined by the above method of determining the sending location of the paging message can also be used for terminal devices to monitor system information update indications.

[0242] As another example, the terminal device can determine whether to perform the RACH procedure in the first cell based on the first information. As a possible implementation, the terminal device can initiate the RACH procedure or access the first cell when one or more of the following conditions are met: the first cell is a camping / cell selection / cell reselection cell; the channel quality of the first cell is greater than a certain threshold (such as the first threshold); the terminal device has data to be transmitted; the amount of data to be transmitted by the terminal device is greater than or equal to a certain threshold (such as the second threshold); the first cell supports slices that match / include / equal to the slices required by the terminal device, etc.

[0243] As another example, the terminal device may receive a PDCCH and / or perform transmissions with the first cell based on the first information. Exemplarily, the terminal device may receive a PDCCH and / or perform transmissions with the first cell in one or more of the following situations: the first cell is a cell for camping / cell selection / cell reselection, the cell for camping / cell selection / cell reselection is the cell for which the terminal device is currently camping / cell selection / cell reselection, or the terminal device is switched to the first cell (e.g., previously in another cell or anchor cell, etc.).

[0244] In some embodiments, if the first information includes the SIB1 of the first cell, the terminal device can also obtain the second information based on the first information. That is, the terminal device can obtain the second information based on the SIB1 of the first cell.

[0245] In some embodiments, the second information may include one or more of the following: SIBs other than SIB1 of the first cell, SI updates of the first cell, RACH configuration of the first cell, and paging configuration of the first cell.

[0246] As an example, the configurations of other SIBs (such as SIB2, SIB3, SIB4, etc.) and / or RACH of the first cell can be obtained from SIB1 of the first cell.

[0247] In some embodiments, the terminal device may send a first request message to the first cell to obtain second information of the first cell, such as obtaining one or more of the following: other SIBs of the first cell, SI updates of the first cell, RACH configuration of the first cell, and paging configuration of the first cell.

[0248] For ease of understanding, several specific examples of Embodiment 1 are given below, assuming the first information includes some or all of the SIBs. It should be noted that the following example uses the first cell sending an SSB, but it could also be a discovery signal, a TRS, or other related reference signal. In at least one embodiment, the first request message is described below as an uplink wake-up signal (UL-WUS).

[0249] For example, the first cell sends an SSB but not an SIB (such as at least SIB1). In this case, the terminal device can detect that the SSB is synchronized with the first cell. In some embodiments, the terminal device can send a UL-WUS request for the SIB (such as SIB1) of the first cell to obtain paging message listening information. Then, the terminal device can listen for paging messages based on this listening information.

[0250] For example, the first cell sends an SSB but not an SIB (such as at least SIB1). In this case, the terminal device can detect that the SSB is synchronized with the first cell. In some embodiments, when the first cell sends a paging message, the first cell may send an SIB (such as SIB1) so that the terminal device can obtain paging message listening information. Then, the terminal device can listen to the paging message based on this listening information.

[0251] For example, the first cell sends an SSB but not an SIB (e.g., at least SIB1). In this case, the terminal device can detect the SSB to determine whether it can select or reselect to the first cell. If the cell selection or reselection conditions (e.g., S / R criteria) are met, the terminal device can send a UL-WUS signal to the first cell to request the first cell's SIB (e.g., SIB1). Then, the first cell sends the SIB information. Based on the first cell's MIB / SIB information, the terminal device performs a final check or determines whether to ultimately reselect or select to the first cell (e.g., the cell has no bar or is reserved, or the cell supports the slice required by the terminal device). In some embodiments, if the terminal device needs to enter connected state, it can obtain the RACH configuration based on the first cell's SIB information (e.g., SIB1) and perform RACH in the first cell to access the first cell.

[0252] For example, the first cell sends an SSB but not an SIB (e.g., at least SIB1). In this case, the terminal device can detect the SSB to determine whether it can select or reselect to the first cell. If the cell selection or reselection conditions (e.g., S / R criteria) are met, the terminal device obtains the SIB information of the first cell from a second cell (e.g., an anchor cell). (In at least one embodiment, the terminal device may also obtain the SIB information of the first cell before executing the R / S criteria or after detecting the SSB of the first cell). Afterward, the terminal device can perform a final check or determine whether to ultimately reselect or select to the first cell based on the MIB / SIB information of the first cell (e.g., the cell has no bar, or the cell supports the slice required by the terminal device). In some embodiments, if the terminal device needs to enter a connected state, the terminal device can obtain the RACH configuration based on the SIB information (e.g., SIB1) of the first cell and perform RACH in the first cell to access the first cell.

[0253] For example, the first cell sends an SSB but not an SIB (e.g., at least SIB1). If the terminal device is handed over to the first cell, it can obtain the SIB of the first cell through a dedicated RRC message. When needed, the terminal device can obtain the RACH configuration of the first cell based on the SIB (e.g., SIB1) and execute RACH in the first cell.

[0254] Example 1 specifies how a terminal device operates in an energy-saving cell (such as an SIB-less cell). In other words, Example 1 specifies a method for connected or disconnected terminal devices to communicate with the first cell (such as an SIB-less cell) when the first cell is an energy-saving cell. This helps ensure network energy saving while the terminal device operates normally in the energy-saving cell. Alternatively, in Example 1, the terminal device can request (actively acquire) or obtain first information about the first cell (such as an energy-saving cell, SIB-less cell, etc.) from a second cell. This helps the terminal device to camp / access / select / reselect the first cell based on the first information, facilitating the terminal device's operation in the first cell.

[0255] Example 2: Example 2 aims to specify how a terminal device requests relevant information about the first cell, and the handling process when an exception occurs during the request process.

[0256] In Example 2, the terminal device can be a terminal device in RRC connected state, or a terminal device in RRC idle state or RRC inactive state.

[0257] Figure 4 This is a flowchart illustrating a method for wireless communication provided in another embodiment of this application. Figure 4 The method shown may include step S410, which is described below.

[0258] In step S410, the terminal device sends a first message to the first cell.

[0259] The first cell can be an energy-saving cell or a cell with an energy-saving base station, or the first cell belongs to a cell or cell that supports network energy saving. For example, the first cell can be an SSB-less cell and / or an SIB-less cell mentioned above.

[0260] In some embodiments, the first cell belongs to one or more of the following: an energy-saving cell; a cell in an energy-saving state; a cell in an NES state; a cell in a closed state; a cell in a DRX state (e.g., during a DRX inactive period); a cell in a DTX state (e.g., during a DTX inactive period); a cell in an abnormal transmission state; a cell in a state where some information is not transmitted; a cell in a low-load state; a cell in an on / off switching state; a cell in a state where it does not transmit all or part of the common channel or channel; a cell in a state where it does not transmit data; a cell in a state where it does not transmit terminal equipment-specific information; a cell using / activating energy-saving technology; a cell with energy-saving capabilities; a cell where energy-saving terminal equipment is camped, selected, or accessed; a cell serving energy-saving terminal equipment, etc.

[0261] This application does not limit the energy-saving technology used / activated in the first cell. For example, the energy-saving technology may include at least one of time-domain energy saving, frequency-domain energy saving, spatial-domain energy saving, and code-domain energy saving technologies. For instance, DTX / DRX is a time-domain energy-saving technology.

[0262] In some embodiments, the first cell satisfies one or more of the following: the first cell does not transmit an SSB; the first cell does not transmit a MIB; the first cell does not transmit some or all of an SIB; the first cell does not transmit both an SSB and an SIB; the first cell does not transmit some or all of the information contained in an SIB; the first cell does not transmit some or all of the common signals / channels; the first cell does not transmit system information other than the MIB; the first cell does not transmit some or all of an SI; the first cell does not transmit some or all of the information contained in an SI; the first cell does not transmit paging messages; the first cell does not transmit system information update indications; the first cell does not transmit some or all of the common signals or channels; the first cell does not transmit RACH / PRACH configuration; the first cell does not transmit cell selection, reselection, or camping information.

[0263] For a detailed introduction to the first community, please refer to the description in Example 1 above. For the sake of brevity, it will not be repeated here.

[0264] The first message can be used to indicate information related to the first cell. For example, the first message can be used to indicate one or more of the following: requesting the first cell to change its state; requesting the first cell to send at least one of SSB, MIB, SIB, and paging messages; requesting the first cell to send some or all of the common signals; the terminal device having a need for data transmission or network access; requesting the first cell to activate or deactivate the cell DTX / DRX; requesting the first cell to modify the cell DTX / DRX; requesting the first cell to use recommended cell DTX / DRX parameters; or recommending cell DTX / DRX parameters to the first cell.

[0265] This application does not limit the resources carrying the first message. For example, the first message can be sent on predefined or preconfigured resources. Alternatively, the first message can be sent on specific resources configured on the network side. Or, the first message can be sent via a specific location or specific signaling (which can be configured on the network side).

[0266] In some embodiments, the first message may be transmitted repeatedly. For example, the first message may be transmitted N times. This application does not limit the number of times the first message is transmitted repeatedly; this number can be arbitrarily set according to actual needs. This application does not limit the configuration method for the number of times the first message is transmitted repeatedly; for example, this number may be configured by the network device, pre-configured, or determined by the terminal device.

[0267] In some embodiments, the method of Embodiment 2 may further include the following steps: within a first time period after sending the first message, if a first condition is met, the terminal device determines that the first cell is unavailable, or the first cell is blocked, or the first cell is blocked for a period of time.

[0268] This application does not limit the duration of the period during which the first cell is barred. For example, this period could be 300 milliseconds or other durations. In some embodiments, barring the first cell for a period could also mean that during this duration, the user does not camp on the first cell, makes a judgment, selects, reselects, accesses, measures, or considers the first cell not a suitable / acceptable cell, at least one of the following:

[0269] In at least one embodiment, the cell mentioned in the embodiments of this application can also be understood or replaced as the cell being reserved.

[0270] The aforementioned first condition may include one or more of the following conditions: the terminal device does not receive a response message for the first message; the terminal device receives a rejection or NACK message for the first message; the terminal device receives K NACK messages for the first message (K can be an integer greater than or equal to 1); the first cell does not perform a state transition; the first cell does not send at least one of the SSB, MIB, SIB, and paging messages; the terminal device does not acquire part or all of the common signals of the first cell; the first cell does not activate or deactivate the cell DTX / DRX; the first cell does not modify the cell DTX / DRX; the first cell does not use the recommended cell DTX / DRX parameters.

[0271] In some embodiments, the aforementioned first duration may correspond to a first timer. Alternatively, the terminal device may start a first timer when sending the aforementioned first message, and the duration of the first timer is the first duration.

[0272] This application does not limit the configuration method of the first duration described above. For example, the first duration may be a predefined duration or a duration configured by the network device.

[0273] In some embodiments, the first message may be transmitted repeatedly within a first duration. For example, the first message may be transmitted N times within the first duration.

[0274] In some embodiments, the method of Embodiment 2 may further include the following steps: if the terminal device determines that the first cell is unavailable, or the first cell is blocked, or the first cell is blocked for a period of time, the terminal device retransmits the first message when the first duration is reached.

[0275] This application embodiment does not limit the number of times the terminal device retransmits the first message. For example, if the terminal device determines that the first cell is unavailable, or the first cell is blocked, or the first cell is blocked for a period of time, the terminal device may retransmit the first message M times when the first time period is reached.

[0276] In some embodiments, the terminal device may start a first timer or a second timer each time it resends the first message.

[0277] Taking the activation of a first timer when the terminal device resends the first message as an example, the duration of the first timer can be equal to the aforementioned first duration or equal to the second duration; this embodiment of the application does not limit this. For example, when the terminal device resends the first message, the activation of the first timer may have a duration equal to the second duration, which can be less than the first duration.

[0278] Taking the activation of a second timer when the terminal device resends the first message as an example, the duration of the second timer can be equal to the aforementioned first duration, or it can be equal to the second duration, or in other words, the duration of the second timer may not be equal to the first duration. This embodiment of the application does not limit this. For example, when the terminal device resends the first message, the activation of the second timer may have a duration equal to the first duration, which can be less than or greater than the first duration. Alternatively, when the terminal device resends the first message, the activation of the second timer may have a duration equal to the first duration.

[0279] It should be understood that the second timer mentioned in the embodiments of this application may be different from the first timer. For example, the second timer and the first timer are different timers, or the second timer and the first timer are the same timer but with different timing durations.

[0280] The aforementioned first and / or second durations can be used to determine various information. For example, the first and / or second durations can be used to determine one or more of the following: whether the first cell can be used for terminal device camping / cell selection / cell reselection; whether the first message was successfully sent; whether the network state of the first cell changed; whether the first cell activated or deactivated cell DTX / DRX; whether the first cell modified cell DTX / DRX; whether the first cell used the recommended cell DTX / DRX; whether the terminal device can receive at least one of the SSB, MIB, SIB, and paging messages of the first cell; whether the terminal device can receive some or all of the common signals of the first cell; whether the terminal device can access the network from the first cell or perform the RACH procedure in the first cell; whether the terminal device can receive system information other than the MIB of the first cell; whether the terminal device can receive some or all of the SI of the first cell; whether the terminal device can receive some or all of the information contained in the SI of the first cell; whether the terminal device can receive paging messages of the first cell; and whether the terminal device can receive system information update indications of the first cell.

[0281] For ease of understanding, several specific examples are given below, using the first cell as an SIB-less cell as an example. It should be noted that the following example uses SSB as the synchronization signal for the first cell, but it could also be a discovery signal, TRS, or other related reference signal. In at least one embodiment, the first message is described below as UL-WUS.

[0282] For example, the first cell does not send an SSB / SIB. In this case, the terminal device can send a UL-WUS request to the network to send an SSB / SIB (such as SIB1). In at least one embodiment, the terminal device can repeatedly send the UL-WUS N times, where N can be one or more times. If the terminal device does not obtain the SSB / SIB (such as SIB1) of the first cell within the first time period, the terminal device cannot select / reselect / camp on the first cell, or the terminal device considers the first cell to be barred for 300 seconds.

[0283] For example, the first cell transmits an SSB but not an SIB. In this case, the terminal device can send a UL-WUS request to the network to send an SIB (such as SIB1). In at least one embodiment, the terminal device can repeatedly send the UL-WUS N times, where N can be one or more times. If the terminal device does not obtain the SSB / SIB (such as SIB1) of the first cell within a first time period, the terminal device cannot select / reselect / camp on the first cell, or the terminal device considers the first cell to be blocked for a period of time, such as 300 seconds.

[0284] For example, the first cell may be in a closed or energy-saving state. In this case, the terminal device can send a UL-WUS request to switch the network state to an open or non-energy-saving state. In at least one embodiment, the terminal device can repeatedly send the UL-WUS N times, where N can be one or more times. If the terminal device does not receive a state transition or state transition indication for the first cell within a first time period, the terminal device cannot select / reselect / remain in the first cell, or the terminal device considers the first cell to be blocked for a period of time, such as 300 seconds, or to have delayed transmission.

[0285] For example, the first cell sends an SSB / SIB / paging message but activates the cell DTX / DRX. In the inactive state of the cell DTX / DRX, the terminal device can send a UL-WUS to request the network to deactivate the cell DTX / DRX, or request the network to receive / transmit signals (such as at least one of CG / DG / PDCCH / PUCCH). In at least one embodiment, the terminal device can repeatedly send the UL-WUS N times, where N can be one or more times. If the terminal device does not receive an ACK or cell DTX / DRX deactivation indication from the first cell within a first duration, the terminal device cannot select / reselect / camp on the first cell, or the terminal device considers the first cell to be blocked for a period of time, such as 300 seconds, or the terminal device is experiencing a delayed transmission (i.e., following the cell DTX / DRX configuration, transmission is only possible during the cell DTX / DRX activation period).

[0286] In at least one embodiment, the cell mentioned in the embodiments of this application can also be understood or replaced as the cell being reserved.

[0287] Example 2 specifies how a terminal device requests relevant information from the first cell, which helps ensure normal communication between the terminal device and the first cell.

[0288] Example 3: Example 3 aims to specify the processing procedure of the positioning reference signal (PRS) in energy-saving scenarios.

[0289] In Example 3, the definition of the first cell can be found in the previous introduction to the first cell, and will not be repeated here for the sake of brevity.

[0290] Figure 5 This is a flowchart illustrating a method for wireless communication provided in another embodiment of this application. Figure 5 The method shown may include step S510, which is described below.

[0291] In step S510, if the first cell is in the first state, the terminal device does not receive the PRS of the first cell or receives the PRS of the first cell according to the first configuration information.

[0292] Accordingly, for the first cell, if the first cell is in the first state, the first cell does not send PRS or sends PRS according to the first configuration information.

[0293] The first cell being in a first state can refer to the first cell being in a state that enables energy saving. For example, the first state can include one or more of the following: energy-saving state, off state, state during the inactive period of cell DTX / DRX, state during the period of using energy-saving technology, etc.

[0294] For further descriptions of the first state, please refer to the previous introduction; for the sake of brevity, they will not be repeated here.

[0295] The first configuration information is described below.

[0296] In Embodiment 3, the first configuration information can be used to indicate the PRS configuration of one or more cells. For example, the first configuration information can indicate the PRS configuration of a first cell. In some embodiments, the first configuration information can indicate the PRS configuration of other cells in addition to indicating the PRS configuration of the first cell.

[0297] In some embodiments, the first configuration information is sent to the terminal device by the location server (such as LMF).

[0298] In some embodiments, the first configuration information is sent by the positioning server to the first cell (or the base station of the first cell).

[0299] In some embodiments, the first configuration information is sent by the positioning server to the first cell (or the base station of the first cell). In at least one embodiment, the first cell (or the base station of the first cell) may configure the second configuration information based on the first configuration information.

[0300] In some embodiments, the first configuration information is sent by the location server to the terminal device, and the terminal device sends the first configuration information to the first cell (or the base station of the first cell).

[0301] In some embodiments, the first cell (or the base station of the first cell) may use the first configuration information to configure the second configuration information. The second configuration information may be used to indicate the DTX / DRX configuration of the first cell.

[0302] In some embodiments, the first configuration information can be used to configure or adjust the second configuration information. For example, after the positioning server or terminal device sends the first configuration information to the first cell, the first cell can configure or adjust the second configuration information based on the first configuration information.

[0303] In some other embodiments, the first configuration information is determined based on second configuration information. This second configuration information can be used to indicate the DTX / DRX configuration of the first cell.

[0304] In some embodiments, the terminal device or the first cell may send the second configuration information to the positioning server, so that the positioning server can configure or adjust the first configuration information according to the second configuration information. Then, the positioning server may send the first configuration information to the terminal device and / or the first cell (or the base station of the first cell). In at least one embodiment, after the positioning server sends the first configuration information to the terminal device, the terminal device may then send the first configuration information to the first cell (or the base station of the first cell).

[0305] In Example 3, when the first cell is in the first state (a state related to cell energy saving), the first cell may not send PRS or may send PRS according to the relevant configuration information, which is beneficial to network energy saving.

[0306] Example 4: Example 4 aims to specify a method for activating or deactivating DTX / DRX in the first cell.

[0307] In Example 4, the definition of the first cell can be found in the previous introduction to the first cell, and will not be repeated here for the sake of brevity.

[0308] Figure 6 This is a flowchart illustrating a method for wireless communication provided in another embodiment of this application. Figure 6 The method shown can be performed by the first cell (or the base station of the first cell). Figure 6 The method shown may include step S610, which is described below.

[0309] In step S610, the first cell activates or deactivates the DTX / DRX of the first cell (or it may also be called DTX / DRX operation or DTX / DRX configuration).

[0310] In some embodiments, if all parameters of the DTX / DRX configuration of the first cell (such as period, on-duration / on-duration time, offset, etc.) are configured in the RRC, or if specific parameters of the DTX / DRX configuration of the first cell (such as period, on-duration / on-duration time, offset, etc.) are configured in the RRC, the DTX / DRX of the first cell can be activated or deactivated according to the RRC method (if configured, it is activated; if not configured, it is not activated). Alternatively, the UE can activate or deactivate the DTX / DRX of the first cell upon receiving the RRC configuration (if configured, it is activated; if not configured, it is not activated).

[0311] In some embodiments, if at least one of the parameters of the DTX / DRX configuration of the first cell (such as period, activation period / activation duration, offset) is configured in the RRC, and at least one of the parameters of the DTX / DRX configuration of the first cell (such as period, activation period / activation duration, offset) is carried in the DCI or MAC CE, or if the DCI or MAC CE carries parameters not provided in the RRC configuration for the DTX / DRX configuration of the first cell, then the UE activates or deactivates the DTX / DRX of the first cell upon receiving the DCI or MAC CE (if received, it activates; if not received, it does not activate).

[0312] In some embodiments, if some parameters of the DTX / DRX configuration of the first cell (such as period and activation period / activation duration) are configured in the RRC, and some parameters of the DTX / DRX configuration of the first cell (such as offset) are carried in the DCI or MAC CE, then the UE will activate or deactivate the DTX / DRX of the first cell upon receiving the DCI or MAC CE (if received, it will be activated; if not received, it will not be activated).

[0313] In some embodiments, if a specific parameter of the DTX / DRX configuration of the first cell is configured in the RRC (such as period, activation period / activation duration, or offset, such as offset), the DTX / DRX of the first cell can be activated or deactivated in the RRC manner (if configured, it will be activated; if not configured, it will not be activated).

[0314] In some embodiments, the first cell may activate or deactivate its DTX / DRX using a first signaling. For example, the first cell may activate or deactivate its DTX / DRX configuration using RRC (activation if configured, deactivation if not configured).

[0315] In some embodiments, the first cell may activate or deactivate its DTX / DRX using a first signaling activation. For example, the first cell may activate or deactivate its DTX / DRX using a DCI. In at least one embodiment, the DCI may carry all or part of the first cell's DTX / DRX configuration (such as period, activation period / activation duration, offset). In at least one embodiment, the DCI may be a UE-specific DCI or a public DCI.

[0316] In some embodiments, the first cell can activate or deactivate its DTX / DRX using a first signaling. For example, the first cell can activate or deactivate its DTX / DRX using a MAC CE. Optionally, the MAC CE carries all or part of the first cell's DTX / DRX configuration (such as period, activation period / activation duration, offset).

[0317] In some embodiments, the UE may activate or deactivate the DTX / DRX of the first cell according to a specific first signaling, such as the latest DTX / DRX signaling for the first cell, or MAC CE, or DCI, or RRC.

[0318] In some embodiments, the first signaling may be associated with a logical channel identifier (LCID). In other words, the LCID may be used to identify or recognize the first signaling. For example, the first signaling may be associated with a new LCID (using the new LCID to identify the first signaling).

[0319] In some embodiments, the first signaling can be used to activate or deactivate a DTX / DRX configuration. That is, a signaling can activate or deactivate a DTX / DRX configuration.

[0320] In some embodiments, the first signaling can be used to activate or deactivate multiple DTX / DRX configurations. Alternatively, the first signaling can be used to activate or deactivate different DTX / DRX configurations. In other words, one signaling can activate or deactivate multiple DTX / DRX configurations or different DTX / DRX configurations.

[0321] In some embodiments, the first signaling can be used to activate or deactivate an LCID. That is, a signaling can activate or deactivate an LCID.

[0322] In some embodiments, the first signaling can be used to activate or deactivate multiple LCIDs. Alternatively, the first signaling can be used to activate or deactivate different LCIDs. In other words, one signaling can activate or deactivate multiple LCIDs or different LCIDs.

[0323] This application embodiment does not limit the payload of the first signaling. Exemplarily, the payload of the first signaling can be one of the following: a fixed value, a variable value, or a default value.

[0324] As an example, the first signaling can be used to instruct the activation or deactivation of a DTX / DRX configuration of the first cell, or a specific DTX / DRX configuration, or a specific number of DTX / DRX configurations.

[0325] As an example, the first signaling can be used to instruct the activation or deactivation of all DTX / DRX configurations in the first cell.

[0326] As an example, the first signaling can use any fixed value (such as a number or a character) to indicate the activation or deactivation of the DTX / DRX configuration of the first cell. For example, a first signaling value of "activate" indicates activation of the DTX / DRX configuration of the first cell, and a first signaling value of "deactivate" indicates deactivation of the DTX / DRX configuration of the first cell. Alternatively, a first signaling value of "1" indicates activation of the DTX / DRX configuration of the first cell, and a first signaling value of "0" indicates deactivation of the DTX / DRX configuration of the first cell. Alternatively, a first signaling value of "1" indicates receipt of an instruction to activate or deactivate the DTX / DRX configuration of the first cell, and a first signaling value of "0" indicates no such instruction has been received. Or, a first signaling value of "0" indicates activation of the DTX / DRX configuration of the first cell, and a first signaling value of "1" indicates deactivation of the DTX / DRX configuration of the first cell, and so on.

[0327] As another example, the first signaling can use a variable value to indicate the activation or deactivation of the DTX / DRX configuration of the first cell. For example, a non-zero value (which can be any non-zero value) for the first signaling indicates activation of the DTX / DRX configuration of the first cell, while a value of "0" indicates deactivation. Alternatively, a value of "0" for the first signaling indicates activation of the DTX / DRX configuration of the first cell, and a non-zero value (which can be any non-zero value) for the first signaling indicates deactivation. For example, a non-zero value (which can be any non-zero value) for the first signaling indicates that an instruction to activate or deactivate the DTX / DRX configuration of the first cell has been received, while a value of "0" indicates that no instruction to activate or deactivate the DTX / DRX configuration of the first cell has been received.

[0328] As another example, the first signaling can use a default value to indicate whether to activate or deactivate the DTX / DRX configuration of the first cell. Taking a default value of "0" as an example, assuming the default state of the DTX / DRX configuration of the first cell is deactivated, then receiving the first signaling once indicates activating the DTX / DRX configuration of the first cell, and receiving the first signaling again indicates deactivating the DTX / DRX configuration of the first cell. Of course, this application embodiment does not limit the default value to "0", and the default value can actually be any default value specified by the protocol, pre-configured, or configured by the network device.

[0329] This application embodiment does not specifically limit the information included in the first signaling. Exemplarily, the first signaling may include one or more of the following indication information: activation or deactivation indication, cell DTX / DRX index, cell DTX index, and cell DRX index. As an example, the first signaling may include an activation indication and a cell DRX index; in this case, the first signaling can be considered as being used to activate the DRX configuration corresponding to the DRX index. As another example, the first signaling may include a deactivation indication and a cell DTX index; in this case, the first signaling can be considered as being used to deactivate the DTX configuration corresponding to the DTX index. As yet another example, the first signaling may include an activation indication, a cell DTX index, and a cell DRX index; in this case, the first signaling can be considered as being used to activate the DTX configuration corresponding to the DTX index and the DRX configuration corresponding to the DRX index. As yet another example, the first signaling may include an activation indication and a cell DTX / DRX index; in this case, the first signaling can be considered as being used to activate the DTX configuration corresponding to the DTX index and the DRX configuration corresponding to the DRX index.

[0330] In at least one embodiment, when the UE is in a non-active state of the first cell DTX / DRX, or when entering / transitioning to a non-active state of DTX / DRX, the UE stops all running timers, such as at least one of the configured grant timer (CGT) and the configured grant retransmission timer (CGRT). Further, when the UE is in an active state of the first cell DTX / DRX, or when entering / transitioning to an active state of DTX / DRX, the UE restarts or starts all timers, such as at least one of the CGT and CGRT. In at least one embodiment, the timers started or restarted are those timers that were stopped when the UE is in a non-active state of the first cell DTX / DRX, or when entering / transitioning to a non-active state of DTX / DRX.

[0331] In at least one embodiment, when the first cell DTX / DRX is inactive, or when entering / transitioning to the inactive state of DTX / DRX, the UE suspends all running timers, such as CGT and CGRT, at least one of them. Further, when the first cell DTX / DRX is active, or when entering / transitioning to the active state of DTX / DRX, the UE resumes all timers, such as CGT and CGRT, at least one of them. In at least one embodiment, the timers started or restarted are those timers suspended when the first cell DTX / DRX is inactive, or when entering / transitioning to the inactive state of DTX / DRX.

[0332] In at least one embodiment, if the configuration parameters corresponding to the DTX and DRX configurations of the first cell are different, such as the period, activation period / activation duration, or offset being different, the UE behavior may also include at least one of the following: information transmitted during DTX activation is allowed to be transmitted during DRX inactive periods; information transmitted during DTX activation is allowed to be transmitted during DRX activation periods using enhanced timing definitions; information transmitted during DRX activation is allowed to be transmitted during DTX inactive periods; information transmitted during DRX activation is allowed to be transmitted during DTX activation periods using enhanced timing definitions.

[0333] In some embodiments, the UE may perform at least one of the following actions.

[0334] Scenario A: The terminal device sends a scheduling request (SR) during the cell DRX activation period, but cannot listen for subsequent PDCCH messages during the cell DTX inactive period. In this case, the following possible solutions can be adopted.

[0335] Option 1: Introduce a new special UE behavior to enable the UE to continue listening to the PDCCH after sending the SR.

[0336] Option 2: When the configured listening window is in the cell DRX inactive period, the UE is allowed to delay SR transmission during the cell DRX active period.

[0337] Scenario B: The UE sends a CG during the active period of the cell DRX, but cannot listen for the corresponding HARQ feedback during the inactive period of the cell DTX. In this case, the following possible solutions can be adopted.

[0338] Option 1: Introduce new UE behavior to ensure that when the configured listening window is inactive during the cell DRX period, the CG timer stops during the cell DRX active period.

[0339] Scenario C: The network sends SPS during the cell DTX activation period, but the UE cannot send HARQ feedback during the cell DTX inactive period. In this case, the following possible solutions can be adopted.

[0340] Option 1: Introduce new special UE behaviors so that when the UE receives SPS, it can send HARQ feedback (such as ACK / NACK) during the cell DTX inactive period.

[0341] Option 2: Introduce a new HARQ feedback, which can be delayed during the cell DRX activation period.

[0342] Scenario D: The network sends a DCI during the cell DTX activation period to activate or deactivate the CG / SPS, but the UE cannot send an acknowledgment MAC CE during the cell DRX inactivation period. In this case, the following possible solutions can be adopted.

[0343] Option 1: Introduce new special UE behavior to ensure that when the UE receives an indication signaling to activate or activate CG / SPS (such as DCI), the UE sends a PUSCH carrying an acknowledgment MAC CE during the cell DTX inactive period.

[0344] Scenario E: The network sends DCI during the cell DTX activation period to trigger aperiodic CSI, but the UE cannot send CSI during the cell DTX inactive period. In this case, the following possible solutions can be adopted.

[0345] Option 1: Introduce new special UE behavior to ensure that the UE can send aperiodic CSI during the cell DRX inactive period when it receives DCI trigger signaling.

[0346] Option 2: Introduce a new non-periodic CSI reporting timeline to delay the activation period of cell DRX.

[0347] In Example 4, the DTX / DRX configuration of the first cell can be activated or deactivated via signaling, allowing for greater flexibility.

[0348] Example 5: Example 5 aims to specify how a terminal device should perform cell handover in an energy-saving scenario. Alternatively, Example 5 aims to specify UE behavior under different CHO execution condition configurations.

[0349] In Example 5, the definition of the first cell can be found in the previous introduction to the first cell, and will not be repeated here for the sake of brevity.

[0350] Figure 7 This is a flowchart illustrating a method for wireless communication provided in another embodiment of this application. Figure 7 The method shown may include steps S710 and S720, which are described below.

[0351] In step S710, the terminal device receives the first handover configuration sent by the first cell.

[0352] In step S720, the terminal device performs a cell handover according to the first handover configuration. Alternatively, the terminal device determines whether to handover from the source cell to the target cell based on the first handover configuration.

[0353] The first handover configuration may include one or more handover execution conditions. These one or more handover execution conditions can be used by the terminal device to determine whether to perform a cell handover (such as a CHO).

[0354] The first handover configuration may include one or more handover execution conditions. In at least one embodiment, different handover execution conditions correspond to the same situation or are executed in the same state. For example, the handover execution condition corresponds to network power saving or NES state, or the handover execution condition is executed in network power saving or NES state. Alternatively, the handover execution condition corresponds to a non-network power saving or non-NES state, or the handover execution condition is executed in a non-network power saving or non-NES state.

[0355] The first handover configuration may include one or more handover execution conditions. In at least one embodiment, different handover execution conditions correspond to different situations or are executed in different states. For example, some handover execution conditions correspond to network power saving or NES states or are executed in network power saving or NES states, while other handover execution conditions correspond to non-network power saving or non-NES states or are executed in non-network power saving or non-NES states.

[0356] In at least one embodiment, when multiple handover execution conditions correspond to a first case (i.e., different handover execution conditions correspond to the same situation or are executed under the same state), if all of the multiple handover execution conditions are met, then it is determined (or considered) that the corresponding target candidate cell or the triggered cell is present, or that a CHO can be executed. In at least one embodiment, when only one handover execution condition corresponds to the first case, if all of the one handover execution conditions are met, then it is determined that the corresponding target candidate cell or the triggered cell is present, or that a CHO can be executed. In at least one embodiment, different handover execution conditions can correspond to either a source cell or a target candidate cell.

[0357] In at least one embodiment, when multiple handover execution conditions correspond to a second case (i.e., different handover execution conditions correspond to different situations or are executed under different states), if all or at least one of the multiple handover execution conditions is met, then the corresponding target candidate cell or the triggered cell is determined, or it is determined that a CHO can be executed. In at least one embodiment, when only one handover execution condition corresponds to a second case, if all or part of the one handover execution condition is met, then the corresponding target candidate cell or the triggered cell is determined, or it is determined that a CHO can be executed. In at least one embodiment, different handover execution conditions can correspond to either a source cell or a target candidate cell.

[0358] In some embodiments, the one or more handover execution conditions may be associated with a variety of information. For example, the one or more handover execution conditions may be associated with one or more of the following: cell channel quality, cell status, cell power-saving time information, etc.

[0359] For example, the aforementioned handover execution conditions may include one or more of the following: channel quality-related handover execution conditions, time-based handover execution conditions, handover execution conditions related to the energy-saving status, state transition, or state indication of the source cell, and handover execution conditions related to the energy-saving status, state transition, or state indication of the target cell. It should be noted that the phrase "handover execution conditions related to the energy-saving status, state transition, or state indication of the source or target cell" mentioned below can be understood as either "handover execution conditions related to the energy-saving status, state transition, or state indication of the source cell, or handover execution conditions related to the energy-saving status, state transition, or state indication of the target cell."

[0360] This application does not limit the handover execution conditions related to channel quality. For example, channel quality-related handover execution conditions may include one or more triggering events, such as one or more of events A3, A4, and A5. Alternatively, channel quality-related handover execution conditions may include one or more of events A3, A4, and A5. Of course, channel quality-related handover execution conditions may also include other events, such as events A1 and A2, etc., and this application does not limit this.

[0361] In some embodiments, the time-based handover execution conditions may include: handover execution conditions associated with the time when the first cell enters energy-saving state or activates energy-saving technology or the cell shuts down.

[0362] In some embodiments, the time-based handover execution conditions may include handover execution conditions associated with the time when the source cell or target cell enters an energy-saving state or activates energy-saving technology or the cell shuts down.

[0363] In some embodiments, the handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell or target cell may include: handover execution conditions related to the state or state transition of the first cell entering an energy-saving state, activating energy-saving technology, or cell shutdown; or, handover execution conditions may be indication information indicating that the first cell enters an energy-saving state, activates energy-saving technology, or cell shutdown.

[0364] In some embodiments, when the second condition is met, the terminal device may perform one or more of the following: perform cell handover, determine that the handover event is met, and determine that the target candidate cell that meets the handover execution condition is the triggering cell; wherein the second condition includes: if there is one handover execution condition, the one handover execution condition is met; or, if there are multiple handover execution conditions, all of the multiple handover execution conditions are met.

[0365] In some embodiments, if the handover execution condition includes one of the above conditions, then when the handover execution condition is met, the terminal device may perform one or more of the following: perform cell handover, determine that a handover event is satisfied, and determine that the target candidate cell that satisfies the handover execution condition is the trigger cell (i.e., the target cell). In some embodiments, the trigger cell can be understood as the cell to which the UE selects from one or more target candidate cells to handover.

[0366] In some embodiments, if the above handover execution conditions include multiple conditions, then when all multiple handover execution conditions are met, the terminal device may perform one or more of the following: perform cell handover, determine that the handover event is met, and determine that the target candidate cell that meets the multiple handover execution conditions is the triggering cell (i.e., the target cell).

[0367] In some embodiments, the handover execution conditions may be for the same target candidate cell. For example, if there are multiple handover conditions, and these multiple handover execution conditions are for the same target candidate cell, then when all of the multiple handover conditions are met, the terminal device may perform cell handover or determine that the handover event satisfies or determine that the target candidate cell that satisfies the multiple handover execution conditions is the triggering cell.

[0368] In some embodiments, the handover execution conditions may be conditions for the source cell and conditions for the same target candidate cell. For example, if there are multiple handover conditions, some of the multiple handover execution conditions may be conditions for the source cell, and some of the multiple handover execution conditions may be conditions for the same target candidate cell. In this case, if all the multiple handover conditions are met, the terminal device may perform a cell handover or determine that the handover event satisfies or determine that the target candidate cell that satisfies the multiple handover execution conditions is the triggering cell.

[0369] In some embodiments, each of the one or more handover execution conditions described above can be configured or executed individually. Alternatively, different handover execution conditions can be configured or executed individually. For example, the one or more handover execution conditions described above include signal quality-related handover execution conditions and time-based handover execution conditions, which can be configured or executed individually.

[0370] In some embodiments, at least two of the aforementioned multiple handover execution conditions are configured or executed jointly. Alternatively, different handover execution conditions can be configured or executed in combination. For example, the multiple handover execution conditions include signal quality-related handover execution conditions and time-based handover execution conditions, which can be configured or executed in combination.

[0371] In some embodiments, the first handover configuration may configure only one of the following handover execution conditions: channel quality-related handover execution conditions, time-based handover execution conditions, and handover execution conditions related to the energy-saving status, state transition, or state indication of the source or target cell.

[0372] In some embodiments, the first handover configuration may configure at least two of the following handover execution conditions; or, in other words, one of the following handover execution conditions needs to be configured or executed simultaneously with other handover execution conditions: time-based handover execution conditions, and handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell. As an example, time-based handover execution conditions may be configured or executed simultaneously with channel quality-related handover execution conditions. As another example, handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell may be configured or executed simultaneously with channel quality-related handover execution conditions. As yet another example, time-based handover execution conditions, handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell, and channel quality-related handover execution conditions may be configured or executed simultaneously. As an example, time-based handover execution conditions cannot be configured or executed alone. As an example, channel quality-related handover execution conditions can be configured or executed alone. As an example, handover execution conditions based on the energy-saving state, state transition, or state indication of the source or target cell cannot be configured or executed alone.

[0373] In some embodiments, where one or more handover execution conditions include channel quality-related handover execution conditions and time-based handover execution conditions, if the channel quality-related handover execution conditions and the time-based handover execution conditions are included in the same handover configuration, the terminal device can perform cell handover when both the channel quality-related handover execution conditions and the time-based handover execution conditions are met. For example, if the handover configuration received by the terminal device includes a first handover configuration, and the handover execution conditions included in the first handover configuration include channel quality-related handover execution conditions and time-based handover execution conditions, then the terminal device can perform cell handover when both the channel quality-related handover execution conditions and the time-based handover execution conditions are met.

[0374] In some embodiments, where one or more handover execution conditions include channel quality-related handover execution conditions and time-based handover execution conditions, if the channel quality-related handover execution conditions and the time-based handover execution conditions are contained in different handover configurations, the terminal device can perform cell handover when the channel quality-related handover execution conditions are met. For example, if the handover configuration received by the terminal device includes a first handover configuration and a second handover configuration, where the first handover configuration includes channel quality-related handover execution conditions and the second handover configuration includes time-based handover execution conditions, then the terminal device can perform cell handover when the channel quality-related handover execution conditions are met; that is, the terminal device can perform cell handover according to the first handover configuration.

[0375] In some embodiments, where one or more handover execution conditions include channel quality-related handover execution conditions and handover execution conditions based on the energy-saving state, state transition, or state indication of the source cell or target cell, if the channel quality-related handover execution conditions and the handover execution conditions based on the energy-saving state, state transition, or state indication of the source cell or target cell are included in the same handover configuration, the terminal device may perform cell handover when the channel quality-related handover execution conditions are met.

[0376] In some embodiments, where one or more handover execution conditions include channel quality-related handover execution conditions and time-based handover execution conditions, if the channel quality-related handover execution conditions and the time-based handover execution conditions are contained in different handover configurations, the terminal device can perform cell handover when the time-based handover execution conditions are met. For example, if the handover configuration received by the terminal device includes a first handover configuration and a second handover configuration, where the first handover configuration includes channel quality-related handover execution conditions and the second handover configuration includes time-based handover execution conditions, then the terminal device can perform cell handover when the time-based handover execution conditions are met; that is, the terminal device can perform cell handover according to the second handover configuration.

[0377] In some embodiments, where one or more handover execution conditions include channel quality-related handover execution conditions and handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell, if the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell are included in the same handover configuration, the terminal device can perform cell handover when both the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell are satisfied. For example, if the handover configuration received by the terminal device includes a first handover configuration, and the handover execution conditions included in the first handover configuration include channel quality-related handover execution conditions and handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell, then the terminal device can perform cell handover when both the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell are satisfied.

[0378] In some embodiments, where one or more handover execution conditions include channel quality-related handover execution conditions and handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell, if the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell are contained in different handover configurations, the terminal device can perform cell handover when the channel quality-related handover execution conditions are met. For example, if the handover configuration received by the terminal device includes a first handover configuration and a second handover configuration, where the first handover configuration includes channel quality-related handover execution conditions and the second handover configuration includes handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell, then the terminal device can perform cell handover when the channel quality-related handover execution conditions are met; that is, the terminal device can perform cell handover according to the first handover configuration.

[0379] In some embodiments, where one or more handover execution conditions include channel quality-related handover execution conditions and handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell, if the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell are included in different handover configurations, the terminal device can perform cell handover when the handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell are met. For example, if the handover configuration received by the terminal device includes a first handover configuration and a second handover configuration, where the first handover configuration includes channel quality-related handover execution conditions and the second handover configuration includes handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell, then the terminal device can perform cell handover when the handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell are met; that is, the terminal device can perform cell handover according to the second handover configuration.

[0380] In some embodiments, where one or more handover execution conditions include channel quality-related handover execution conditions and handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell or target cell, if the channel quality-related handover execution conditions and the handover execution conditions based on the energy-saving state, state transition, or state indication of the source cell or target cell are included in the same handover configuration, the terminal device may perform cell handover when the channel quality-related handover execution conditions are met.

[0381] In some embodiments, if one or more handover execution conditions include channel quality-related handover execution conditions, the terminal device may perform cell handover when the channel quality-related handover execution conditions are met. For example, if one or more handover execution conditions include channel quality-related handover execution conditions and time-based handover execution conditions, the terminal device may perform cell handover when the channel quality-related handover execution conditions are met.

[0382] In some embodiments, if one or more handover execution conditions include time-based handover execution conditions, the terminal device may perform cell handover when the time-based handover execution conditions are met. For example, if one or more handover execution conditions include channel quality-related handover execution conditions and time-based handover execution conditions, the terminal device may perform cell handover when the time-based handover execution conditions are met.

[0383] In some embodiments, if one or more handover execution conditions include handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell, the terminal device may perform cell handover when the handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell are met. For example, if one or more handover execution conditions include handover execution conditions related to channel quality and handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell, the terminal device may perform cell handover when the handover execution conditions related to the energy-saving state, state transition, or state indication of the source or target cell are met.

[0384] Example 5 specifies how terminal devices should perform condition switching in energy-saving scenarios, which helps ensure normal communication between terminal devices and energy-saving communities.

[0385] Example 6: Example 6 aims to specify how traditional terminal equipment and energy-saving terminal equipment should access the first cell.

[0386] In Example 6, the definition of the first cell can be found in the previous introduction to the first cell, and will not be repeated here for the sake of brevity.

[0387] Figure 8 This is a flowchart illustrating a method for wireless communication provided in yet another embodiment of this application. Figure 8 The method shown is presented from the perspective of the interaction between the first terminal device, the second terminal device, and the first cell. Figure 8 The method shown may include steps S810 and S820.

[0388] In step S810, the first terminal device obtains the third information of the first cell. For example, the first cell sends the third information, or the first cell sends the third information to the first terminal device. However, this application is not limited to this; for example, the first terminal device may also obtain the third information of the first cell from other cells.

[0389] In step S820, the second terminal device obtains the fourth information of the first cell. For example, the first cell sends the fourth information, or sends the fourth information to the second terminal device. However, this application is not limited to this; for example, the second terminal device may also obtain the fourth information of the first cell from other cells.

[0390] In some embodiments, the first terminal device described above is different from the second terminal device.

[0391] In some embodiments, the first terminal device may include at least one of the following: a terminal device that does not have energy-saving capabilities, a terminal device that does not use energy-saving technology, a non-specific version of a terminal device, a terminal device that cannot use one or more energy-saving technologies, or a terminal device that is prohibited from accessing or has low priority access or selection or reselection to the first cell.

[0392] It should be noted that the "priority" or "low priority" mentioned in the embodiments of this application refers to the relative priority between the first terminal device and the second terminal device. For example, the low priority access of the first terminal device to the first cell can be understood as the first terminal device having a lower priority to access the first cell compared to the second terminal device.

[0393] In some embodiments, the second terminal device may include at least one of the following: a terminal device with energy-saving capabilities, a terminal device using energy-saving technology, a specific version of a terminal device, a terminal device capable of using one or more energy-saving technologies, or a terminal device that allows access to or preferential access to, or selects or reselects to the first cell.

[0394] In some embodiments, the first cell may include at least one of the following: a cell that prioritizes or allows the second terminal device to access, select, or reselect; a cell with low priority or does not allow the first terminal device to access, select, or reselect; a cell in an energy-saving state; a cell in a closed state; a cell using / activating energy-saving technology; a cell with energy-saving capabilities; a cell where energy-saving terminal devices are camped, selected, or accessed; a cell serving energy-saving terminal devices; or a cell using cell DTX / DRX technology.

[0395] The execution order of steps S810 and S820 is not limited in this application embodiment. For example, step S810 can be executed before step S820, after step S820, or simultaneously with step S820.

[0396] The third and fourth pieces of information will be introduced below.

[0397] In some embodiments, the third information may be used to indicate relevant information about the first cell, such as whether the first cell has been barred, whether the first cell is a candidate cell, or whether the first cell is a reserved cell.

[0398] In some embodiments, the third information may be used to determine one or more of the following: whether the first terminal device can access / select / reselect the first cell; whether the second terminal device can access / select / reselect the first cell; whether the first cell is blocked; whether the first cell is a candidate cell; and whether the first cell is a reserved cell.

[0399] As an example, the third information includes indications of whether the terminal device is barred (BUT). If the third information indicates that the terminal device is barred, the first terminal device cannot access the first cell. If the third information indicates that the terminal device is not barred, the first terminal device and / or the second terminal device can access the first cell.

[0400] In some embodiments, the third information may be carried in the cell's system information. For example, the third information may be carried in SIB1 or MIB. As a specific example, the third information may be carried in the SIB1 or MIB of the first cell.

[0401] In some embodiments, the third information may be cell reservation information or cell prohibition information; and / or, the third information may be prohibition information for determining whether a cell is a reserved cell or a prohibited cell. For example, the third information may be... cellReservedForFutureUse IE or cellReservedForOperatorUse IE or cellReservedForOtherUse IE or cellBarred IE.

[0402] In at least one embodiment, if using cellReservedForOperatorUse IE or cellReservedForOtherUse IE, the first cell further indicates whether a first terminal device that supports a specific function (such as NPN) or a specific access level can access, camp, select, or reselect the first cell, and / or whether a first terminal device that does not support a specific function (such as NPN) or a non-specific access level can access, camp, select, or reselect the first cell.

[0403] In some embodiments, the fourth information may be used to indicate relevant information about the first cell, such as whether the first cell is barred, whether the first cell is a candidate cell, whether the first cell is a suitable or acceptable cell, or whether the first cell is a reserved cell, etc.

[0404] In some embodiments, the fourth information may be used by the second terminal device to determine one or more of the following: whether the second terminal device can access / select / reselect to the first cell; whether the first cell is prohibited; whether the first cell is a candidate cell; whether the first cell is a suitable or acceptable cell; and whether the first cell is a reserved cell.

[0405] In some embodiments, the second terminal device processes the third information in one of the following ways: obtaining the third information, determining that the third information indicates to be retained or prohibited, or ignoring the third information.

[0406] In some embodiments, the fourth information is obtained by the second terminal device when one or more of the following conditions occur: the second terminal device obtains the third information, the second terminal device determines that the third information indicates to be retained or prohibited, or the second terminal device ignores the third information.

[0407] As an example, after obtaining the third information, the second terminal device can still obtain the fourth information to learn about the relevant information of the first cell. As another example, even if the second terminal device does not obtain the third information, ignores the third information, or obtains the third information and then ignores it, the terminal device can still obtain the fourth information to learn about the relevant information of the first cell. As yet another example, the second terminal device determines the third information as... cellReservedForFutureUse IE or cellReservedForOperatorUse IE or cellReservedForOtherUse IE or cellBarred If IE displays a bar or is reserved, the second terminal device can obtain fourth information to learn about the relevant information of the first cell.

[0408] In some embodiments, the fourth information may be carried in the cell's system information. For example, the fourth information may be carried in SIB1 or MIB. As a specific example, the fourth information may be carried in the SIB1 or MIB of the first cell.

[0409] In some embodiments, the fourth information may be instruction information for a specific terminal device, rather than instruction information for all terminal devices.

[0410] In some embodiments, the fourth information may be instruction information specific to certain terminal devices.

[0411] In some embodiments, the fourth information may be instruction information for the second terminal device.

[0412] In some embodiments, the fourth information may be terminal device-specific indication information of at least one of the following types: terminal device with energy-saving capability, terminal device using energy-saving technology, specific version of terminal device, terminal device capable of using one or more energy-saving technologies, terminal device that allows access or preferential access or selection or reselection to the first cell, etc.

[0413] To facilitate understanding, several specific examples of Example 6 are given below.

[0414] For example, a cell-barred message can be used to control or prevent the first terminal device from accessing the first cell. Alternatively, it can be used... cellReservedForFutureUse The IE (Internal Equipment) controls whether the first terminal device can access or not access the first cell. Correspondingly, traditional terminal devices (Legacy UEs) or non-NES-capable terminal devices (NES-capable UEs) are controlled based on this cellbarred or... cellReservedForFutureUse The IE (Intervention) checks whether the UE can camp on, select, or reselect the cell, or determines whether the cell is a candidate cell. In at least one embodiment, if this indication is true, prohibited, or retained, the Legacy UE or non-NES-capable UE cannot camp on, select, or reselect the cell, and / or determines the cell as a retained cell; otherwise (if the indication is false, not prohibited, or not retained), the Legacy UE or non-NES-capable UE can camp on, select, or reselect the cell, or determines the cell as suitable, acceptable, or not retained.

[0415] For example, for a Legacy UE or a non-NES-capable UE, the following behavior can be performed: when the cell status is indicated as "true" or for future use, the terminal device should determine that the cell status of the cell is "reserved" or determine that the cell is a reserved cell.

[0416] For example, the third and fourth information can be used as follows, assuming the third information is cellbarred or cellReservedForFutureUse The fourth piece of information is cellBarredNES. However, this embodiment is not limited to this; for example, the third piece of information could also be... cellReservedForOperatorUse or cellReservedForOtherUse.

[0417] In at least one embodiment, if cellbarred or cellReservedForFutureUse This is used to indicate whether the signal is blocked, "true," or reserved. A legacy UE or a non-NES-capable UE is prohibited from accessing the cell. Otherwise, a legacy UE or a non-NES-capable UE can access the cell.

[0418] In at least one embodiment, if cellbarred or cellReservedForFutureUse If a cellBarredNES is indicated as disabled, "true", or reserved, and cellBarredNES indicates in SIB1 that it is not disabled, then an NES-capable UE can access the cell.

[0419] In at least one embodiment, if cellbarred or cellReservedForFutureUse If cellBarredNES is indicated as disabled, "true", or reserved, and cellBarredNES indicates disabled in SIB1, then an NES-capable UE cannot access the cell.

[0420] In at least one embodiment, if cellbarred or cellReservedForFutureUse This is used to indicate whether the signal is disabled, "true," or reserved, and if cellBarredNES is not indicated in SIB1, then an NES-capable UE cannot access the cell. In at least one embodiment, if cellBarred or cellReservedForFutureUse If a cellBarredNES is not indicated in SIB1, and the cell is "true" or "reserved", then an NES-capable UE can access the cell.

[0421] For example, the third and fourth pieces of information can be used as follows: assuming the third piece of information is cellbarred or... cellReservedForFutureUse The fourth piece of information is cellBarredNES. However, this embodiment is not limited to this; for example, the third piece of information could also be... cellReservedForOperatorUse or cellReservedForOtherUse.

[0422] In at least one embodiment, if cellbarred or cellReservedForFutureUse This is used to indicate whether the signal is blocked, "true," or reserved. A legacy UE or a non-NES-capable UE is prohibited from accessing the cell. Otherwise, a legacy UE or a non-NES-capable UE can access the cell.

[0423] Optionally, NES-capable UEs can ignore cellbarred or cellReservedForFutureUse.

[0424] In at least one embodiment, if cellBarredNES indicates in SIB1 that it is not disabled, then an NES-capable UE is able to access the cell.

[0425] In at least one embodiment, if cellBarredNES is indicated as disabled in SIB1, then an NES-capable UE cannot access the cell.

[0426] In at least one embodiment, if cellBarredNES is not indicated in SIB1, then an NES-capable UE cannot access the cell. In at least one embodiment, if cellBarredNES is not indicated in SIB1, then an NES-capable UE can access the cell.

[0427] For example, the third and fourth pieces of information can be used as follows, assuming the third piece of information is... cellReservedForOtherUse and cellReservedForFutureUse The fourth piece of information is cellBarredNES (all UEs supporting NES capability add 1 bit to SIB1). Possible UE behaviors are at least one of the following, where T represents "true" and F represents "false".

[0428] Behavior 1: If ( cellReservedForOtherUse =F, cellReservedForFutureUse If =F,cellBarredNES=F), then all UEs can reside.

[0429] Behavior 2: If ( cellReservedForOtherUse =T, cellReservedForFutureUse If =F,cellBarredNES=F), then UEs supporting NPN capability and UEs supporting NES capability (regardless of whether they support NPN capability) can camp.

[0430] Behavior 3: If ( cellReservedForOtherUse =T, cellReservedForFutureUse If =T,cellBarredNES=F), then UEs that support NES capability (regardless of whether they support NPN capability) can reside there.

[0431] Behavior 4: If ( cellReservedForOtherUse =T, cellReservedForFutureUse If =T, cellBarredNES=T), then all UEs are disabled.

[0432] For example, the third and fourth pieces of information can be used as follows, assuming the third piece of information is... cellReservedForOtherUse and cellReservedForFutureUse The fourth piece of information consists of two IEs in SIB1. These two IDs are for UEs that do not support NES capability / do not support NPN capability (i.e., cellBarredNESnonNPNUE) and UEs that support NES capability / support NPN capability (i.e., cellBarredNESNPNUE). Possible UE behaviors are at least one of the following, where T represents "true" and F represents "false".

[0433] Behavior 1: If (cellReservedForOtherUse =F, cellReservedForFutureUseIf cellBarredNESnonNPNUE =F, cellBarredNESNPNUE=F), then all UEs can reside.

[0434] Behavior 2: If ( cellReservedForOtherUse =T, cellReservedForFutureUse If cellBarredNESnonNPNUE =F, cellBarredNESNPNUE=F, then UEs supporting NPN capability and UEs supporting NES capability (regardless of whether they support NPN capability) can camp.

[0435] Behavior 3: If ( cellReservedForOtherUse =T, cellReservedForFutureUse If cellBarredNESnonNPNUE =F, cellBarredNESNPNUE=F), then UEs supporting NES capabilities can reside there.

[0436] Behavior 4: If ( cellReservedForOtherUse =T, cellReservedForFutureUse If =T,cellBarredNESnonNPNUE =T,cellBarredNESNPNUE=F), then UEs supporting NES capability or UEs supporting NPN capability can camp.

[0437] Behavior 5: If ( cellReservedForOtherUse =T, cellReservedForFutureUse If cellBarredNESnonNPNUE =F, cellBarredNESNPNUE=T), then UEs that support NES capability or UEs that do not support NPN capability can camp.

[0438] Behavior 6: If ( cellReservedForOtherUse =T, cellReservedForFutureUse If cellBarredNESnonNPNUE =T, cellBarredNESNPNUE =T, then all UEs are disabled.

[0439] In Embodiment Six, compared to traditional terminal devices, this embodiment of the application additionally specifies a method for energy-saving terminal devices to access energy-saving communities, which is beneficial for energy-saving terminal devices to preferentially access energy-saving communities.

[0440] To facilitate understanding, the technical solution of this application will be introduced below with several specific examples.

[0441] It should be noted that the following examples can be used individually or in any combination, and the embodiments of this application are not limited in this regard. For example, Example 1 can be used alone, or in combination with Example 2 or Example 3, or in combination with Example 7 and Example 8. Alternatively, Example 4 can be used alone, or in combination with Example 5, or in combination with Example 5, Example 6, and Example 7, etc. The examples below can also be used in combinations not listed here, but for the sake of brevity, they will not be elaborated here.

[0442] Example 1: How SIB-less Cells Work In Example 1, the first information includes some or all of the SIBs.

[0443] In Example 1, the first cell transmits an SSB but not an SIB. Accordingly, the terminal device's behavior includes at least one of the following.

[0444] Action 1: The terminal device receives the SSB through the first cell, or measures the SSB of the first cell.

[0445] Action 2: The terminal device performs cell selection and / or cell reselection and / or camping decisions based on the SSB of the first cell (e.g., performing R / S criterion decisions).

[0446] Action 3: The terminal device obtains the SIB information of the first cell.

[0447] In at least one embodiment, the SIB information of the first cell includes at least all or part of the SIB information. For example, the SIB information of the first cell includes information on at least one of SIB1, SIB2, SIB3, SIB4, and SIB5. Alternatively, the SIB information of the first cell includes part or all of the information from a specific SIB (such as SIB1).

[0448] In at least one embodiment, the SIB information of the first cell includes at least one of the following: slice information supported by the first cell, frequency information of the first cell, frequency priority information of the first cell, parameters of the S criterion, parameters of the R criterion, whether the first cell is bar, etc.

[0449] In at least one embodiment, the terminal device can obtain the SIB information of the first cell through other cells (such as an anchor cell). For example, other cells can carry or indicate the SIB information of the first cell, such as through system information of other cells.

[0450] In at least one embodiment, the terminal device can obtain the SIB information of the first cell through the first cell.

[0451] As an example, for the first cell, the terminal device needs to obtain the SIB information (such as SIB1) of the first cell by request.

[0452] As an example, the SIB information of the first cell si-BroadcastStatus Set to not broadcast. As an example, the SIB information of the first cell can be optional. As an example, the SIB information of the first cell is broadcast / instructed only upon request. Exemplarily, the aforementioned SIB information includes at least SIB1, and / or at least one of SIB2, SIB3, SIB4, and SIB5.

[0453] As an example, a terminal device can request the SIB information (such as SIB1) of the first cell through a first request message.

[0454] For example, the terminal device can use pre-configured or pre-defined time-frequency resources to send a first request message. For example, the first request message can be sent via a first cell or sent within a first cell.

[0455] For example, the terminal device may use preamble resources and / or PRACH resources to send the first request message. In some embodiments, the preamble resources and / or PRACH resources correspond to resources of a first cell. In some embodiments, the preamble resources and / or PRACH resources are resources corresponding to SIB information or a specific SIB / SI (such as SIB1). In some embodiments, the preamble resources and / or PRACH resources are resources requesting SIB information or a specific SIB / SI (such as SIB1). In some embodiments, the preamble resources and / or PRACH resources may be sent through other cells (such as anchor cells). In some embodiments, the preamble resources and / or PRACH resources may be sent through the SIB of other cells, or through dedicated RRC messages (such as RRC release messages).

[0456] As an example, the first request message may carry the value or index of the requested SIB / SI, or a bitmap of the requested SIB / SI (e.g., a value of 1 represents a request, and a value of 0 represents no request, or vice versa).

[0457] As an example, a terminal device may send a first request message if a first condition is met. This first condition is at least one of the following: the terminal device detects the SSB of the first cell; the channel quality of the first cell meets a threshold; the first cell meets the R or S criterion; the first cell is a cell selected or reselected; the terminal device selects or reselects to the first cell; the terminal device has data to be transmitted (e.g., data that can trigger a service request); or the slice requested by the terminal device matches / contains / equals a slice supported by the first cell.

[0458] As an example, the terminal device sends a first request message to the first cell, requesting the first cell to send SIB information. For example, the terminal device may be in an idle or inactive state.

[0459] For example, a terminal device can use existing messages or message extensions, or a new RRC message, to request the SIB of the first cell.

[0460] For example, terminal devices can RRCSystemInfoRequest of requested-SI-List The instructions in the document pertain to the request to the SIB.

[0461] For example, the RACH resource that sends the first request message can be... si-RequestConfig or si- RequestConfigSUL Medium configuration.

[0462] For example, the first request message for a requesting SIB can be the same or different messages. For instance, the first request message can be sent via a specific time-frequency resource, or a predefined time-frequency resource or message. Or, for another example, SIB1 can be sent via a specific time-frequency resource, a predefined time-frequency resource, or a message, while other SIBs can request it via an on-demand process.

[0463] For example, terminal devices can be accessed through... requested-SI-List Or its extension carries the SIB of the requested first cell. In some embodiments, the terminal device may... requested-SI-List Or its extensions include at least SIB1. In some embodiments, the terminal device can... RRCSystemInfoRequest Request the SIB information for the first cell.

[0464] For example, when a terminal device triggers a random access procedure, it uses the SI corresponding to the required parameters. si-RequestConfig or si-RequestConfigSUL The corresponding preamble and PRACH resources are requested to establish the SIB of the first cell. si- RequestConfig or si-RequestConfigSUL Carrying SI-SchedulingInfo In some embodiments, SI-SchedulingInfo Simultaneously carrying schedulingInfoListThe SI indicated corresponds to its own SchedulingInfo This indicates the corresponding SIB / SIB-TypInfo (including the type, such as which SIB it is). si-RequestConfig or si- RequestConfigSUL SI in (e.g., SI-RequestResources The corresponding SI), in sequence SI- SchedulingInfo In schedulingInfoList SI in some embodiments. In some cases, the SIB type can be extended to SIB1.

[0465] As an example, a terminal device can obtain SIB information through a dedicated RRC. For instance, the terminal device may be in a connected state, or it may be a terminal device that has switched over from another cell.

[0466] For example, a terminal device can obtain the SIB of the first cell through an RRC reconfiguration message.

[0467] For example, when the channel quality of the first cell meets the threshold, or based on measurement reporting, the cell currently serving the terminal device can switch the terminal device to the first cell.

[0468] As an example, a terminal device may send a first request message to a first cell, requesting the first cell to send its SIB information. For example, this terminal device may be in a connected state.

[0469] For example, terminal devices can be accessed through... requestedSIB-List Or its extension carries the SIB of the requested first cell. In some embodiments, the terminal device may... requestedSIB-List Or its extensions include at least one of SIB1, SIB2, SIB3, SIB4, SIB5, etc. In some embodiments, the terminal device can... DedicatedSIBRequest Request the SIB information for the first cell.

[0470] In at least one embodiment, the terminal device can determine whether it can camp on or reselect to the first cell or select the first cell based on the SSB and / or SIB of the first cell (e.g., whether the first cell is barred, etc., e.g., whether the slice supported by the first cell matches / contains / equals the slice required by the terminal device).

[0471] In at least one embodiment, for cell selection, the terminal device may determine whether to perform selection for a first cell or whether to select the first cell based on the SSB.

[0472] As an example, a terminal device can determine whether to perform cell selection or select the corresponding first cell based on the measurement results of the SSB (such as RSRP / RSRQ / RSSI).

[0473] As an example, the terminal device may determine whether to perform cell selection or select the first cell based on the measurement results of the first cell and the measurement results of other cells, and / or whether the terminal device has data to be transmitted (e.g., according to the data to be transmitted information according to the LCH, or, there is a service request) or whether the amount of data to be transmitted exceeds a threshold, and / or the cell's support for slices (e.g., whether the slices supported by other cells / SSB-less cells match / include / equal to the slices required by the terminal device). In some embodiments, the terminal device may access the SSB-less cell only if the measurement results of the first cell meet the S criterion or the cell selection criterion.

[0474] As an example, if the channel quality of the first cell is greater than a threshold, the terminal device can send a first request message. Then, the terminal device can request whether to select the first cell.

[0475] In at least one embodiment, for cell reselection, the terminal device may determine whether to perform a reselection for the first cell or to reselect to the first cell based on the SSB.

[0476] As an example, a terminal device can determine whether to perform cell reselection or reselect to the corresponding first cell based on the measurement results of the first cell (such as RSRP / RSRQ / RSSI).

[0477] As an example, the terminal device may determine whether to perform cell reselection or reselect to the first cell based on the measurement results of the first cell and the measurement results of other cells, and / or whether the terminal device has data to be transmitted (e.g., according to the data to be transmitted information according to the LCH, or, there is a service request) or whether the amount of data to be transmitted exceeds a threshold, and / or the cell's support for slices (e.g., whether the slices supported by other cells / SSB-less cells match / include / equal to the slices required by the terminal device). In some embodiments, the terminal device may access the first cell only when the measurement results of the first cell meet the R criterion and / or the S criterion or the cell reselection criterion.

[0478] As an example, if the channel quality of the first cell is greater than a threshold, the terminal device can send a first request message. Then, the terminal device can request whether to reselect to the first cell.

[0479] Action 4: The terminal device can determine whether it can stay in the first cell, or whether it can select or reselect to the first cell, or perform a final check based on the SIB information of the first cell.

[0480] Action 5: The terminal device camps in the first cell, or, after obtaining the SIB of the first cell, the terminal device camps in the SSB-less cell or determines whether to camp in the SSB-less cell.

[0481] Action 6: The terminal device listens for paging from the first cell. In at least one embodiment, the configuration for paging listening can be obtained from the SIB (such as SIB1) of the first cell. For example, the terminal device can listen for paging from the first cell after obtaining the SIB information of the first cell or after sending a first request message.

[0482] Action 7: The terminal device can obtain other SIBs from the first cell, and / or obtain SI updates, and / or obtain RACH configuration. In at least one embodiment, other SIBs (such as SIB2, SIB3, SIB4, SIB5, etc.) and / or RACH configuration of the first cell can be obtained from the SIB of the first cell (such as SIB1). For example, after obtaining the SIB information of the first cell (such as SIB1), or after sending a first request message, the terminal device can obtain other SIBs from the first cell, and / or obtain SI updates, and / or obtain RACH configuration.

[0483] Action 8: The terminal device determines whether to perform RACH in the first cell. For example, the terminal device may initiate RACH or access in the first cell when the first cell is a camping / cell selection / cell reselection cell, and / or the channel quality of the first cell is greater than a threshold, or the terminal device has data to be transmitted (such as data to be transmitted according to LCH, or, there is a service request), or the amount of data to be transmitted by the terminal device is greater than or equal to a threshold, or the slice supported by the SSB-less cell matches (e.g., the same or includes) the slice required by the terminal device.

[0484] Action 9: The terminal device receives a PDCCH in the first cell and / or performs transmissions with the first cell. In at least one embodiment, when the first cell is a camping / cell selection / cell reselection cell, or when the camping / cell selection / cell reselection cell is the terminal device's current camping / cell selection / cell reselection cell, or when the terminal device is switched to the first cell (e.g., previously in another cell or anchor cell), the terminal device may receive a PDCCH in the first cell and / or perform transmissions with the first cell.

[0485] Action 10: The first cell sends paging. Correspondingly, the terminal device receives paging in the first cell. Alternatively, if the terminal device obtains the SIB of the first cell, it may receive paging in the first cell. In at least one embodiment, when paging is present, the base station of the first cell may send the SIB information of the first cell, or the core network corresponding to the first cell may instruct the first cell to send the SIB information of the first cell.

[0486] In at least one embodiment, the paging location can be the location of the legacy.

[0487] In at least one embodiment, the first cell can send paging using a specific configuration or location. For example, the paging location can appear periodically (e.g., within X ms, the terminal device can listen for paging in the first m ms and not listen for paging in the last (xm) ms, i.e., there is no paging location in the last (xm) ms). Alternatively, the paging location can have an on / off pattern. Or, the terminal device can listen for paging at all paging locations, i.e., the time when the terminal device listens for paging is independent of the UE ID.

[0488] To facilitate understanding, several specific implementation methods of Example 1 are given below.

[0489] For example, the first cell transmits an SSB but not an SIB (such as at least SIB1). In this case, the terminal device can detect that the SSB is synchronized with the first cell. In some embodiments, the terminal device can send an uplink wake-up signal (UL-WUS) to request the SIB (such as SIB1) of the first cell to obtain paging message listening information. Then, the terminal device can listen for paging messages based on this listening information.

[0490] For example, the first cell sends an SSB but not an SIB (such as at least SIB1). In this case, the terminal device can detect that the SSB is synchronized with the first cell. In some embodiments, when the first cell sends a paging message, the first cell may send an SIB (such as SIB1) so that the terminal device can obtain paging message listening information. Then, the terminal device can listen to the paging message based on this listening information.

[0491] For example, the first cell sends an SSB but not an SIB (e.g., at least SIB1). In this case, the terminal device can detect the SSB to determine whether it can select or reselect to the first cell. If the cell selection or reselection conditions (e.g., S / R criteria) are met, the terminal device can send a UL-WUS signal to the first cell to request the first cell's SIB (e.g., SIB1). Then, the first cell sends the SIB information. Based on the first cell's MIB / SIB information, the terminal device performs a final check or determines whether to ultimately reselect or select to the first cell (e.g., the cell has no bar, or the cell supports the slice required by the terminal device). In some embodiments, if the terminal device needs to enter a connected state, it can obtain the RACH configuration based on the first cell's SIB information (e.g., SIB1) and perform RACH in the first cell to access the first cell.

[0492] For example, the first cell sends an SSB but not an SIB (e.g., at least SIB1). In this case, the terminal device can detect the SSB to determine whether it can select or reselect to the first cell. If the cell selection or reselection conditions (e.g., S / R criteria) are met, the terminal device obtains the SIB information of the first cell from a second cell (e.g., an anchor cell). (In at least one embodiment, the terminal device may also obtain the SIB information of the first cell before executing the R / S criteria or after detecting the SSB of the first cell). Afterward, the terminal device can perform a final check or determine whether to ultimately reselect or select to the first cell based on the MIB / SIB information of the first cell (e.g., the cell has no bar, or the cell supports the slice required by the terminal device). In some embodiments, if the terminal device needs to enter a connected state, the terminal device can obtain the RACH configuration based on the SIB information (e.g., SIB1) of the first cell and perform RACH in the first cell to access the first cell.

[0493] For example, the first cell sends an SSB but not an SIB (e.g., at least SIB1). If the terminal device is handed over to the first cell, it can obtain the SIB of the first cell through a dedicated RRC message. When needed, the terminal device can obtain the RACH configuration of the first cell based on the SIB (e.g., SIB1) and execute RACH in the first cell.

[0494] Example 2: Exception handling for the first message The method in Example 2 may include at least one of the following steps.

[0495] Step 1: The terminal device sends a first message. The first message may be used to request a state transition of the first cell, or to send at least one of SSB / SIB / paging, or to send some or all of the common signals, or to indicate that the terminal device has a need for data transmission / network access.

[0496] In at least one embodiment, the first cell is an energy-saving cell, or a cell in an energy-saving state, or a cell that is turned off, or a cell that uses / activates energy-saving technology (e.g., a cell that configures or activates cell DTX / DRX, or a cell that uses frequency domain energy-saving technology or spatial domain energy-saving technology).

[0497] In at least one embodiment, the first cell is an SSB-less cell (at least no SSBs are transmitted), or an SIB-less cell (such as transmitting SSBs, but not transmitting some or all of the SIBs or SIBs).

[0498] In at least one embodiment, the first cell is a cell that does not transmit public signals.

[0499] In at least one embodiment, the terminal device is an idle / inactive / connected terminal device.

[0500] In at least one embodiment, the first message may be sent to the network via a specific location, or using specific time-frequency resources, or predefined time-frequency resources, or specific signaling.

[0501] Step 2: The terminal device sends the first message. The first message can be transmitted N times.

[0502] In at least one embodiment, N may be a network configuration, a pre-configuration, or determined by the terminal device.

[0503] Step 3: If, upon sending the first message, the terminal device does not receive feedback on the first message within the first time period, or the network does not perform a state transition, or the first cell does not send at least one of SSB / SIB / paging, or the first cell does not send some or all of the common signals, or the terminal device does not acquire at least one of SSB / SIB / paging of the first cell, or the terminal device does not acquire some or all of the common signals of the first cell, then the terminal device determines that the first cell is unavailable, or is blocked, or is blocked for a period of time (e.g., 300ms, or is blocked until feedback or signal from the network is received or the network transitions).

[0504] In at least one embodiment, the first time corresponds to the first timer.

[0505] In at least one embodiment, the first timer may be started when or under what circumstances the first message is sent.

[0506] In at least one embodiment, the first time is predefined or network-configured.

[0507] In at least one embodiment, the first message may be transmitted N times within a first time period.

[0508] In at least one embodiment, if no feedback or signal from the network or a network transition is received within the first time period, the terminal device may retransmit the first message. For example, the terminal device may retransmit the message M times. In at least one embodiment, the terminal device may start a second timer each time the first message is retransmitted.

[0509] In at least one embodiment, the first timer or the second timer can be used to determine whether the first cell can be a cell for camping / cell selection / cell reselection, or to determine whether the first request has been successfully sent, or to determine whether the network state has changed, or to determine whether at least one of the SSB / SIB / paging of the first cell can be received, or to determine whether some or all of the public signals of the first cell can be received, or to determine whether it is possible to access the network / perform RACH from the first cell.

[0510] To facilitate understanding, several specific implementation methods of Example 2 are given below.

[0511] For example, the first cell does not send an SSB / SIB. In this case, the terminal device can send a UL-WUS request to the network to send an SSB / SIB (such as SIB1). In at least one embodiment, the terminal device can repeatedly send the UL-WUS N times, where N can be one or more times. If the terminal device does not obtain the SSB / SIB (such as SIB1) of the first cell within the first time period, the terminal device cannot select / reselect / camp on the first cell, or the terminal device determines that the first cell is barred for 300 seconds.

[0512] For example, the first cell transmits an SSB but not an SIB. In this case, the terminal device can send a UL-WUS request to the network to send an SIB (such as SIB1). In at least one embodiment, the terminal device can repeatedly send the UL-WUS N times, where N can be one or more times. If the terminal device does not obtain the SSB / SIB (such as SIB1) of the first cell within the first time period, the terminal device cannot select / reselect / camp on the first cell, or the terminal device determines that the first cell is barred for 300 seconds.

[0513] For example, the first cell may be in a powered-off or energy-saving state. In this case, the terminal device can send a UL-WUS request to switch the network state to powered-on or non-energy-saving state. In at least one embodiment, the terminal device can repeatedly send the UL-WUS N times, where N can be one or more times. If the terminal device does not receive a state transition or state transition indication for the first cell within a first time period, the terminal device cannot select / reselect / camp on the first cell, or the terminal device determines that the first cell is barred for 300 seconds, or the transmission is delayed.

[0514] For example, the first cell sends an SSB / SIB / paging message but activates the cell DTX / DRX. In the inactive state of the cell DTX / DRX, the terminal device can send a UL-WUS to request the network to deactivate the cell DTX / DRX, or request the network to receive / transmit signals (such as at least one of CG / DG / PDCCH / PUCCH). In at least one embodiment, the terminal device can repeatedly send the UL-WUS N times, where N can be one or more times. If the terminal device does not receive an ACK or cell DTX / DRX deactivation indication from the first cell within the first duration, the terminal device cannot select / reselect / camp on the first cell, or the terminal device determines that the first cell is barred for 300 seconds, or the terminal device is transmitting with a delay (i.e., following the cell DTX / DRX configuration, transmission is only possible during the cell DTX / DRX activation period).

[0515] Example 3: Processing of reference signals (such as PRS) under energy-saving conditions The method in Example 3 may include at least one of the following steps.

[0516] Step 1: In energy-saving mode, or during the inactive period of cell DTX / DRX, the first cell does not send PRS. Accordingly, the terminal device does not receive PRS.

[0517] Step 2: The first cell or terminal device exchanges the cell DTX / DRX configuration with the LMF. Then, the LMF can configure or adjust the PRS configuration of one or more related cells based on the cell DTX / DRX configuration.

[0518] In at least one embodiment, the LMF can configure or adjust the PRS to the terminal device.

[0519] In at least one embodiment, for power-saving mode or inactive time of cell DTX / DRX, the terminal device may receive PRS according to the configured PRS, or may not receive PRS.

[0520] Step 3: The LMF can exchange the PRS configuration of one or more related cells with the terminal device or the corresponding energy-saving (using cell DTX / DRX) cell of the terminal device.

[0521] In at least one embodiment, the cell may obtain PRS configuration from the LMF (or from the terminal device).

[0522] In at least one embodiment, the cell can configure or adjust its DTX / DRX configuration according to the PRS configuration. In at least one embodiment, for power-saving states or inactive periods of the cell's DTX / DRX, the terminal device can receive the PRS according to the configured PRS, or not receive the PRS.

[0523] Example 4: Methods for activating or deactivating DTX / DRX in a residential community In some embodiments, the network can activate or deactivate cell DTX / DRX via MAC CE.

[0524] In at least one embodiment, the MAC CE may use a new LCID identifier.

[0525] In at least one embodiment, a MAC CE can activate / deactivate an LCID.

[0526] In at least one embodiment, a MAC CE can activate / deactivate different LCIDs.

[0527] In at least one embodiment, the load of the MAC CE can be a fixed value or a variable value.

[0528] In at least one embodiment, the payload of the MAC CE can be 0. For example, the default state of a cell DTX / DRX is deactivated, receiving one MAC CE activates the cell, and receiving the next MAC CE deactivates it.

[0529] In at least one embodiment, the MAC CE may include one of the following indication information: activation / deactivation indication, cell DTX index, cell DRX index.

[0530] Example 5: Implementation of CHO in an energy-saving scenario The behavior of the terminal device may differ depending on the CHO execution condition configuration. In some embodiments, the different CHO execution conditions may include at least one of the following: channel quality-related conditions (such as A3 / A4 / A5 events), and conditions related to the time or indication of entering the NES (such as the time or indication of the source cell or target cell entering the NES).

[0531] In at least one embodiment, different CHO execution conditions can be configured or executed individually.

[0532] In at least one embodiment, different CHO execution conditions can be configured or executed in combination.

[0533] In at least one embodiment, the behavior of the terminal device may differ under different execution conditions.

[0534] The following is a possible execution process for a CHO. This CHO execution process may include steps 1 through 3.

[0535] In step 1: In the enhanced CHO configuration, the source cell configures the UEs with the NES-related parameters.

[0536] In addition to the dedicated handover configurations of each candidate target cell (i.e., RRC Reconfiguration), the enhanced CHO configuration includes the specific NES CHO execution condition based on the source cell NES mode.

[0537] The specific NESCHO execution condition includes a time-based execution event. This time-based execution event refers to the time when the source cell enters NES mode. When the start point / time of the source cell's NES entry is approaching, the terminal device needs to execute the CHO. This time can be the reference SFN or the UTC time of the source cell entering NES. Therefore, upon receiving the enhanced CHO configuration, the terminal device begins to determine if this time is approaching and executes the CHO when the time for the source cell to enter NES arrives.

[0538] As agreed, the specific NES CHO execution condition can also be one of Events A3, A4, and A5. Therefore, the source cell can configure one of Events A3, A4, and A5 as a CHO execution condition. Such radio link-related events can work alone or together with time-based execution events.

[0539] As can be seen, the terminal device can determine that the source cell will enter the NES based on a time-based CHO execution event, which is contained in the enhanced CHO configuration.

[0540] As can be seen, the starting point of the source cell entering the NES is contained in the time-based CHO execution event for the NES mode determination. Therefore, the UE considers the event to be fulfilled if such a starting point of the source cell approaches is reached.

[0541] As can be seen, events A3 / A4 / A5 can be configured alone or together with the time-based CHO execution event.

[0542] Step 2: Once the enhanced CHO configuration is received, the terminal device begins to evaluate the CHO conditions.

[0543] Upon receiving the enhanced CHO configuration, the UE performs the CHO condition evaluation associated with the configured CHO event.

[0544] In step 3: The UE executes the CHO and switches to another cell.

[0545] Depending on the network policy, the network may configure the UE with one or more of time-based events and Event A3 / A4 / A5. Therefore, the UE will face several scenarios when executing a CHO.

[0546] Scenario 1: Both the time-based execution event and Event A3 / 4 / 5 are configured. The purpose of this approach is to achieve a trade-off between radio link quality and the source cell's NES requirement. Therefore, the source cell will configure a relaxed condition for Event A3 / 4 / 5. Following this assumption, the UE will execute the CHO when any candidate target cell completes all CHO execution events; that is, the UE executes the CHO if the source cell enters the NES and if any candidate target cell completes Event A3 / 4 / 5.

[0547] Alternatively, the terminal device can execute a CHO when event A3 / 4 / 5 is completed in any candidate target cell.

[0548] Furthermore, the channel quality of the candidate target cell may be good enough before the source cell enters NES mode. Therefore, the network can configure an additional event A3 / 4 / 5 to allow the UE to switch to the candidate target cell ASAP as soon as possible. If such an additional event A3 / 4 / 5 is configured, the UE will follow the traditional behavior, i.e., the UE executes the CHO and switches to any candidate target cell that fulfills the additional event A3 / 4 / 5.

[0549] As can be seen, in this case, if a time-based execution event is configured for the source cell and Event A3 / 4 / 5 is configured for the target candidate cell, the UE will consider the target candidate cell as a triggered cell if both execution events are fulfilled.

[0550] Scenario 2: The time-based execution event is not configured, but Event A3 / 4 / 5 is configured. As in the legacy, the UE executes the CHO and switches to any cell that fulfills Event A3 / 4 / 5.

[0551] As can be seen, in this case, if the time-based execution event is not configured for the source cell but Event A3 / 4 / 5 is configured for the target candidate cell, the UE will consider the target candidate cell as a triggered cell if Event A3 / 4 / 5 is fulfilled.

[0552] Scenario 3: Time-based execution events are configured, but Event A3 / 4 / 5 is not configured. Normally, terminal devices should switch to candidate target cells with sufficiently good channel quality. However, if the source cell can no longer serve the terminal device due to energy saving (e.g., cell shutdown) and no A3 / 4 / 5 events are configured for any candidate target cells, then the most important thing is to switch the terminal device to another cell. Therefore, a more lenient handover rule can be considered. As one implementation, the terminal device can select a candidate cell with better channel quality; for example, the terminal device selects and switches to the cell with the highest channel quality. Normally the UE should switch to the candidate target cell with a good enough channel quality. However, if the source cell cannot serve the UEs anymore due to energy saving (eg celloff) and neither of Event A3 / 4 / 5 is configured for any candidate target cell, it means the most important thing is to switch the UE to another cell, thus arelaxed rule for handover can be considered. As an implementation, the UE canchoose a candidate cell with a better channel quality, eg UE chooses andswitches to a cell with the highest channel quality. If only one candidate target cell is indicated in the CHO configuration, the UE may have to switch to this cell without choice).

[0553] As can be seen, in this case, if a time-based execution event is configured for the source cell, but no A3 / 4 / 5 event is configured for any candidate target cell, the UE needs to select and switch to the candidate target cell with better signal quality if the time-based execution event is fulfilled.

[0554] Alternatively, another implementation of scenario 3 can be one of the following: selecting a target cell to perform CHO based on the terminal device's implementation (in at least one embodiment, this target cell is a target candidate cell configured with CHO); or, the terminal device selecting a target cell that meets certain conditions (such as a threshold) to perform CHO (in at least one embodiment, this includes at least one of the following: this target cell is a target candidate cell configured with CHO. This threshold can be pre-configured or separately configured); or, the terminal device selecting a target cell with better channel quality to perform CHO (in at least one embodiment, this target cell is a target candidate cell configured with CHO, and / or, a target candidate cell whose channel quality is measured).

[0555] In some embodiments, the terminal device may request the network to configure channel quality-related events (such as A3 / 4 / 5 events), and the configuration method in case 3 will not occur.

[0556] Example 6: UE assistance information (UAI) reporting In at least one embodiment, Example 6 can be used in energy-saving scenarios or non-energy-saving scenarios.

[0557] In at least one embodiment, Example 6 can be used for a specific UE scenario, or a specific service (such as XR) scenario, or all UE or service scenarios.

[0558] In at least one embodiment, Example 6 is used for a UE that has the ability to report auxiliary information. Alternatively, the UE mentioned in Example 6 can be a UE with the ability to report auxiliary information.

[0559] When a UE needs to report first auxiliary information, the UE may report auxiliary information according to at least one of the following conditions. The first auxiliary information includes at least one of the following: uplink jitter (UL jitter), burst arrival time (BAT), and period.

[0560] In at least one embodiment, BAT can be identified as one or more of the following: reference SFN, reference slot, reference symbol, SFN offset, slot offset, symbol offset, time domain offset, UTC time (e.g., date, time, and second), etc.

[0561] In at least one embodiment, BAT can be represented as at least one of the following: conditional CG start position, offset position, DRX start position, offset position, offset during the active time period, etc.

[0562] For example, if the UE has not previously sent a UAI related to UL jitter / BAT, the UE will initiate a UAI transmission to provide UL jitter / BAT.

[0563] For example, if the UE has not previously sent a UAI related to UL jitter / BAT / cycle, the UE will initiate a UAI transmission to provide at least one of UL jitter / BAT / cycle.

[0564] For example, if the UE has not previously sent a UAI related to BAT, the UE will initiate a UAI transmission to provide UL BAT.

[0565] For example, if the UE has not previously sent a UAI related to UL jitter, the UE will initiate a UAI transmission to provide UL jitter.

[0566] For example, if the UE has not previously sent a period-related UAI, the UE will initiate a UAI transmission to provide the period.

[0567] For example, if the current UL jitter / BAT, or at least one of the current UL jitter / BAT, is different from the UL jitter / BAT indicated in the UAI last sent by the UE, and the reporting prohibition timer expires, the UE initiates a UAI transmission to report the updated UL jitter / BAT.

[0568] For example, if the current UL jitter is different from the UL jitter indicated in the UAI sent by the UE last time, and the corresponding reporting prohibition timer expires, the UE initiates a UAI transmission to report the updated UL jitter, or reports at least one of the UL jitter / BAT / cycle.

[0569] For example, if the current BAT is different from the BAT indicated in the UAI sent by the UE last time, and the corresponding reporting prohibition timer expires, the UE initiates a UAI transmission to report the updated BAT, or reports at least one of UL jitter / BAT / cycle.

[0570] For example, if at least one of the current UL jitter / BAT is different from the UL jitter / BAT indicated in the UE's last transmitted UAI, and the reporting prohibition timer expires, the UE initiates a UAI transmission to report the updated UL jitter / BAT.

[0571] For example, if the current UL jitter / BAT changes, or if at least one of the UL jitter / BAT changes exceeds the change threshold, the UE initiates a UAI transmission to report the updated UL jitter / BAT, or reports the UL jitter / BAT.

[0572] For example, if the current UL jitter / BAT / cycle changes, or if the change of at least one of the UL jitter / BAT / cycles exceeds the change threshold, the UE initiates a UAI transmission to report the updated UL jitter / BAT / cycle, or reports the UL jitter / BAT / cycle.

[0573] For example, if the change in the current UL jitter exceeds the change threshold 1, the UE initiates a UAI transmission to report the updated UL jitter, or reports all auxiliary information, or reports all updated auxiliary information.

[0574] For example, if the change in the current BAT exceeds the change threshold 2, the UE initiates a UAI transmission to report the updated BAT, or reports all auxiliary information, or reports all updated auxiliary information.

[0575] For example, if the change in the current period exceeds the change threshold 3, the UE initiates a UAI transmission to report the updated period, or reports all auxiliary information, or reports all updated auxiliary information.

[0576] In at least one embodiment, if the UE reports a period, and the core network also indicates a period to the base station, then the base station can use the period reported by the UE, the period indicated by the core network, or the latest / last obtained period. In at least one embodiment, the period indicated by the UE and the core network to the base station is for UL, and / or the period values ​​indicated by the UE and the core network to the base station can be different.

[0577] In at least one embodiment, the network configures a timer to disable the reporting of first auxiliary information in an RRC configuration message (such as otherConfig), and / or changes the threshold.

[0578] In at least one embodiment, when there are multiple contents of the first auxiliary information, such as at least two of the first auxiliary information being UL jitter, BAT, and period, the reporting prohibition timer corresponding to the first auxiliary information can be the same, or different reporting prohibition timers or timer durations can be configured for different contents.

[0579] In at least one embodiment, when the first auxiliary information contains multiple items, such as UL jitter, BAT, and at least two of the periodic items, the change threshold corresponding to the first auxiliary information can be the same, or different change thresholds can be configured for different items. For example, a first change threshold is configured for UL jitter, and a report is triggered when the change of UL jitter exceeds the first change threshold. A second change threshold is configured for BAT, and a report is triggered when the change of BAT exceeds the second change threshold.

[0580] In at least one embodiment, the UE may report a capability indication to the network to indicate whether the UE can report first auxiliary information. However, the embodiments of this application are not limited to this. For example, it is not necessary to introduce a UE capability indication, but to indicate through indication information that the UE can identify a PDU set or data burst so that the UE can further report the first auxiliary information.

[0581] Example 7: Latency Information Reporting In at least one embodiment, Example 7 can be used in energy-saving scenarios or non-energy-saving scenarios.

[0582] In at least one embodiment, Example 7 can be used for a specific UE scenario, or a specific service (such as XR) scenario, or all UE or service scenarios.

[0583] In at least one embodiment, Example 7 is used for a UE that has the ability to report latency information. Alternatively, the UE mentioned in Example 7 can be a UE with the ability to report latency information.

[0584] When a UE needs to report latency information, its behavior may include at least one of the following, which will be described below.

[0585] Behavior 1: UE reports transmission delay. Specifically, the transmission delay reported by the UE may include at least one of the following.

[0586] In some embodiments, the UE reports latency information to the LCH / LCG that indicates or configures the reporting latency information.

[0587] In some embodiments, the UE may use a MAC CE to report the latency information. For example, the communication system may introduce a new MAC CE for reporting the latency information.

[0588] In some embodiments, the MAC CE includes latency information for one LCH / LCG, or includes latency information for multiple LCH / LCGs. In some embodiments, the MAC CE includes latency information for one LCG, or includes latency information for multiple LCGs. In some embodiments, the MAC CE includes latency information for one LCH, or includes latency information for multiple LCHs. In some embodiments, the MAC CE includes latency information for one LCH of one LCG, or includes latency information for multiple LCHs of one LCG.

[0589] In some embodiments, the MAC CE may further include the amount of data to be transmitted corresponding to the latency information of LCH / LCG.

[0590] In some embodiments, the MAC CE may further include the amount of data to be transmitted corresponding to the latency information of the LCH.

[0591] In some embodiments, the MAC CE may further include the amount of data to be transmitted corresponding to the latency information of the LCG.

[0592] In some embodiments, the MAC CE may further include the amount of data to be transmitted corresponding to the delay information of one or more LCHs of an LCG.

[0593] In some embodiments, the length of the MAC CE is limited. For example, the MAC CE may be of variable or fixed size. For example, the length of the MAC CE may be A bytes. For example, the length of the MAC CE may not exceed a certain size, such as X bytes, or the length of the MAC CE may not exceed the length that the L field in existing MAC CE designs can indicate.

[0594] In some embodiments, when reporting latency information of LCH / LCG, for a single LCH / LCG, the UE may report only one latency information (e.g., a specific latency information in the LCG, the maximum latency information in the LCG, the minimum latency information in the LCG, the average latency information of the LCG, the minimum latency information among multiple latency information greater than a certain threshold, the maximum latency information among multiple latency information less than a certain threshold, or the minimum latency information among multiple latency information less than a certain threshold), or report multiple latency information (e.g., report one latency information for each LCH in the LCG, or report one latency information for each PDU set or burst in the LCH / LCG, or report latency information for PDU sets / LCGs / LCHs whose latency exceeds a threshold).

[0595] In some embodiments, when reporting the latency information of an LCG, for an LCG, the UE may report only one latency information (e.g., the minimum latency information in the LCG), or report multiple latency information (e.g., report one latency information for each LCH in the LCG, or report one latency information for each PDU set or burst in the LCG, or report latency information for PDU sets / LCGs / LCHs whose latency exceeds a certain threshold).

[0596] In some embodiments, when reporting LCH latency information, for a given LCH, the UE may report only one latency information (e.g., the minimum latency information in the LCH), or report multiple latency information (e.g., report one latency information for each PDU set or burst reported for the LCH, or report latency information for PDU sets / LCHs / bursts whose latency exceeds a certain threshold).

[0597] In some embodiments, if the UE reports only one delay information, the delay information may be one of the following delay information in the UE, LCH, or LCG: a certain delay information, or the maximum delay information, or the minimum delay information, or the average delay information, or the minimum delay information among multiple delay information greater than a certain threshold, or the maximum delay information among multiple delay information less than a certain threshold, or the minimum delay information among multiple delay information less than a certain threshold.

[0598] In some embodiments, if the UE only reports one latency information, the UE may report the minimum latency information in the LCG.

[0599] In some embodiments, if the UE reports only one latency information, the UE may report the minimum latency information in the UE or LCH.

[0600] In some embodiments, if the UE reports only one latency information for each LCH in the LCG, the UE may report the minimum latency information in the LCH.

[0601] In some embodiments, the UE reports latency information to the base station under certain conditions. These conditions include one of the following: the latency or remaining latency is less than a threshold, or the waiting latency exceeds a threshold, or the timer duration is less than a threshold, or the timer is active, or a new PDU set or burst arrives. In at least one embodiment, in this case, the latency reported by the UE is specific to the PDU set, burst, LCG, UE, or LCH.

[0602] In some embodiments, if the UE intends to report the remaining time of a PDU set, the UE may report only one value, which is equal to the discard timer associated with the first SDU in the PDU set. discardTimer The remaining time.

[0603] In some embodiments, if the UE intends to report the remaining time of a PDU set, the UE may report only one value, which is equal to the last value in the PDU set, or the discard timer associated with a particular SDU. discardTimer The remaining time.

[0604] In some embodiments, the UE reports the amount of data to be transmitted simultaneously with the latency information. In at least one embodiment, if the network indicates or configures that multiple BS tables can be used for a certain LCH / LCG, the UE can select the BS table to use based on the network indication, or the UE can determine (e.g., based on the data volume) to select the BS table.

[0605] In some embodiments, where an LCG can simultaneously use both traditional BS tables and new BS tables, the UE can select the table to use for encoding based on network instructions. For example, if the network indicates the use or preferential use of the new BS table, the UE uses the new BS table. Alternatively, if the network indicates low preference for the new BS table, the UE first uses the traditional BS table. For example, if the network instructs the UE to select a table with a small quantization error, the UE can select the BS table to use based on the quantization error.

[0606] In some embodiments, where an LCG can simultaneously use both traditional BS tables and new BS tables, the UE can select the BS table to use based on the amount of cached data. For example, if the amount of cached data exceeds the minimum value of the new BS table, the UE can select the new BS table for encoding. Alternatively, the UE can select the BS table based on the magnitude of the quantization error (e.g., selecting the BS table with the smaller quantization error).

[0607] In some embodiments, the BS table selected by the UE is for LCH / LCG.

[0608] In some embodiments, the UE may report per-LCG BS tables to the network.

[0609] In some embodiments, the UE may report a selected BS table to the network. For example, the UE reports a selected BS table for the LCG.

[0610] In at least one embodiment, the conventional BS form mentioned above can be a BS form supported by the NR system R17.

[0611] Action 2: The UE reports a capability indication to the network to indicate whether the UE can report latency information.

[0612] In some embodiments, the communication system does not need to introduce a UE capability indication to indicate whether the UE can recognize a PDU set or a data burst, but implicitly indicates or indicates that the UE can recognize a PDU set or a data burst by reporting capability indication information.

[0613] Action 3: The UE reports a capability indication to the network, indicating whether the UE can use the new BS form or the new MAC CE or the new BS reporting mechanism to report BS information.

[0614] In some embodiments, the communication system does not need to introduce a UE capability indication to indicate whether the UE can recognize a PDU set or a data burst, but implicitly indicates or indicates that the UE can recognize a PDU set or a data burst by reporting capability indication information.

[0615] Example 8: Packet Deletion In at least one embodiment, Example 8 can be used in energy-saving scenarios or non-energy-saving scenarios.

[0616] In at least one embodiment, Example 8 can be used for a specific UE scenario, or a specific service (such as XR) scenario, or all UE or service scenarios.

[0617] In at least one embodiment, Example 8 is used for a UE with packet deletion capability. Alternatively, the UE mentioned in Example 8 can be a UE with packet deletion capability.

[0618] The following describes the UE behavior when the UE needs to delete data packets based on the PDU set.

[0619] In some embodiments, the aforementioned data packets are deleted or discarded, which is performed in PDCP.

[0620] In some embodiments, the aforementioned data packets are deleted or discarded, which is performed in the RLC.

[0621] In some embodiments, if PDU set discard is configured for the UE or a specific DRB, or if a PDU set discard-based instruction is configured for the UE or a specific DRB, or if an instruction to enable PDU set discard is configured for the UE or a specific DRB, the UE can perform enhanced operations on the PDU set discard and PDCP discard timers. These enhanced operations may include at least one of the following: maintaining discard timers only for a subset of SDUs in the PDU set; maintaining a discard timer for each SDU / PDU in the PDU set; maintaining different discard timer durations for SDUs / PDUs in the PDU set; stopping the discard timers for all SDUs / PDUs in the PDU set when the discard timers for a subset of SDUs / PDUs in the PDU set expire; and deleting all SDUs / PDUs in the PDU set when the discard timers for a subset of SDUs / PDUs in the PDU set expire.

[0622] In some embodiments, if PDU set discarding or PDU set discarding-based operation / instruction is configured for the UE or a specific DRB, when the first SDU of the PDU set is received from the upper layer, the associated sending PDCP entity will start the discard timer associated with that SDU.

[0623] In some embodiments, if a PDU set discarding or PDU set discarding-based operation / instruction is configured for the UE or a specific DRB, the associated sending PDCP entity will discard all PDCP SDUs in the PDU set once the discard timer associated with the first SDU in the PDU set times out.

[0624] In some embodiments, for other SDUs in the PDU set that are not the first SDU, the discard timer may not be enabled. Alternatively, the discard timer may be enabled.

[0625] In some embodiments, if PDU set discarding or PDU set discarding-based operations / instructions are configured for the UE or a specific DRB, the associated transmitting PDCP entity will start a discard timer associated with each SDU when each SDU in the PDU set is received from the upper layer. In at least one embodiment, the discard timer durations for different SDUs may be the same or different.

[0626] In some embodiments, if a PDU set discarding or PDU set-based discarding operation / instruction is configured for the UE or a specific DRB, once the discard timer associated with an SDU in the PDU set expires, the relevant transmitting PDCP entity will discard all PDCP SDUs in the PDU set, and / or stop all SDUs / PDUs corresponding to the PDU set.

[0627] In some embodiments, if a discard timer is enabled for other SDUs of the first SDU in the PDU set, the duration of the discard timer is the configured PDCP discard timer duration.

[0628] In at least one embodiment, the first SDU, or the first SDU, is the first SDU in the corresponding PDU set, or the first SDU in the PDU set to arrive at the PDCP or access layer.

[0629] In some embodiments, if a discard timer is enabled for other SDUs that are not the first SDU in the PDU set, then for the other SDU, the corresponding discard timer duration can be the duration of the configured PDCP discard timer, or the discard timer duration can be the duration of the configured PDCP discard timer minus the duration between the other SDU and the first SDU, or the timer duration can be the remaining duration of the first SDU's discard timer duration.

[0630] In some embodiments, if a discard timer is enabled for other SDUs in the PDU set that are not the first SDU, then for any SDU of the other SDUs, the corresponding discard timer duration can be the duration of the configured PDCP discard timer, or the discard timer duration can be the duration of the configured PDCP discard timer minus the duration between the SDU and the first SDU, or the timer duration can be the remaining duration of the discard timer duration of the first SDU.

[0631] In some embodiments, the network can be configured to drop packets based on PDU set importance (PSI), that is, to drop packets based on PSI values, levels or classifications.

[0632] In some embodiments, when performing PDU set dropping, the network can be configured to perform PSI-based dropping, that is, to perform PDU set dropping based on PSI values, levels or categories.

[0633] In some embodiments, the UE may report a capability indication to the network to indicate whether the UE can perform PDU set drop. In some embodiments, the communication system does not need to introduce a UE capability indication to indicate whether the UE can recognize a PDU set or data burst, but rather the drop capability indication implies or indicates whether the UE can recognize a PDU set or data burst.

[0634] In some embodiments, the UE may report a capability indication to the network to indicate whether the UE can perform PSI-based drop operations. In some embodiments, the communication system does not need to introduce a UE capability indication to indicate whether the UE can recognize PDU sets or data bursts; instead, the PSI drop capability indication implicitly or indicates whether the UE can recognize PDU sets or data bursts. In some embodiments, the communication system does not need to introduce a UE capability indication to indicate whether the UE can perform PDU set drop operations; instead, the PSI drop capability indication implicitly or indicates whether the UE can perform PDU set drop operations.

[0635] In some embodiments, a UE that supports PSI-based discarding needs to also support PDU-based discarding capabilities.

[0636] In some embodiments, the indication supports the ability to drop based on PDU sets, while also indicating that the UE supports PSI-based dropping.

[0637] In some embodiments, the discarding of PSI or the PSI-based discarding mechanism can be implemented in one of the following ways: Method 1: Configure the parameters of the above mechanism through RRC, including thresholds or classification criteria (used to distinguish PSI level or type, or whether it is important or not, or, for which PDU sets to perform PSI-based discard processing), and / or, the PSI-specific timer or the PSI-specific value for discard timer.

[0638] In some embodiments, the UE may be instructed to use / not use, or to activate / deactivate, a PSI-based discard mechanism by one or more of the following: RRC, MAC CE, PDCP control PDU indication, and DCI.

[0639] In at least one embodiment, the aforementioned RRC and the RRC configuring the parameters of the PSI-based discarding mechanism can be the same or different RRC signaling. In at least one embodiment, after the UE receives the aforementioned RRC, the UE's RRC can instruct the UE's PDCP to use / not use, or to activate / deactivate the PSI-based discarding mechanism.

[0640] In at least one embodiment, after the UE receives the aforementioned MAC CE, the UE's MAC can instruct the UE's PDCP to use / not use, or to activate / deactivate the PSI-based discarding mechanism.

[0641] In at least one embodiment, the PDCP control PDU indication can be used to instruct the UE to use / not use, or to activate / deactivate, the PSI-based discard mechanism. In at least one embodiment, the transmission of the PDCP control PDU indication can be triggered based on this requirement, or by using a new triggering mechanism.

[0642] In at least one embodiment, the network can instruct the UE to use / not use, or activate / deactivate the PSI-based discarding mechanism, via DCI. In at least one embodiment, after receiving the aforementioned DCI, the UE's physical layer can instruct the UE's PDCP to use / not use, or activate / deactivate the PSI-based discarding mechanism.

[0643] Method 2: Pre-configure or write the parameters of the above mechanism, including thresholds or classification criteria (used to distinguish PSI low level or type, or important or unimportant, or, which PDU sets perform PSI-based discard processing), and / or, the values ​​of timers corresponding to specific PSIs or discard timers corresponding to specific PSIs.

[0644] In some embodiments, the UE may be instructed to use / not use, or to activate / deactivate, a PSI-based discard mechanism by one or more of the following: RRC, MAC CE, PDCP control PDU indication, and DCI.

[0645] In at least one embodiment, the aforementioned RRC and the RRC configuring the parameters of the PSI-based discarding mechanism can be the same or different RRC signaling. In at least one embodiment, after the UE receives the aforementioned RRC, the UE's RRC can instruct the UE's PDCP to use / not use, or to activate / deactivate the PSI-based discarding mechanism.

[0646] In at least one embodiment, after the UE receives the aforementioned MAC CE, the UE's MAC can instruct the UE's PDCP to use / not use, or to activate / deactivate the PSI-based discarding mechanism.

[0647] In at least one embodiment, the PDCP control PDU indication can be used to instruct the UE to use / not use, or to activate / deactivate, the PSI-based discard mechanism. In at least one embodiment, the transmission of the PDCP control PDU indication can be triggered based on this requirement, or by using a new triggering mechanism.

[0648] In at least one embodiment, the network can instruct the UE to use / not use, or activate / deactivate the PSI-based discarding mechanism, via DCI. In at least one embodiment, after receiving the aforementioned DCI, the UE's physical layer can instruct the UE's PDCP to use / not use, or activate / deactivate the PSI-based discarding mechanism.

[0649] Method 3: The network controls the PDU indication or DCI indication of the UE to use / not use, or to activate / deactivate the PSI-based discard mechanism via RRC, MAC CE or PDCP.

[0650] In at least one embodiment, the RRC or MAC CE or PDCP controls the PDU indication or DCI to carry an explicit indication for instructing the UE to use / not use, or to activate / deactivate, the PSI-based discard mechanism.

[0651] In at least one embodiment, the RRC, MAC CE, or PDCP control PDU indication or DCI does not carry an explicit indication, but instead uses parameters to indicate whether the UE uses or does not use, or activates or deactivates, the PSI-based discarding mechanism. For example, if a parameter or a specific parameter (e.g., a threshold or classification criterion, or the value of a timer corresponding to a specific PSI or a discard timer corresponding to a specific PSI) is present, the UE uses or activates the PSI-based discarding mechanism. Conversely, if no parameter or a specific parameter (e.g., a threshold or classification criterion, or the value of a timer corresponding to a specific PSI or a discard timer corresponding to a specific PSI) is present, the UE does not use or deactivates the PSI-based discarding mechanism.

[0652] In at least one embodiment, the RRC may indicate parameters of the aforementioned mechanism, including thresholds or classification criteria (used to distinguish PSI levels or types, or whether they are important or unimportant, or which PDU sets perform PSI-based drop processing), and / or the value of a timer corresponding to a specific PSI or a drop timer corresponding to a specific PSI. In some embodiments, if the aforementioned parameters are present, or at least one of the parameters is present, the UE uses or activates PSI-based drop; otherwise, the UE does not use or deactivates PSI-based drop. In at least one embodiment, after receiving the aforementioned RRC, the UE's RRC may instruct the UE's PDCP to use / not use, or activate / deactivate the PSI-based drop mechanism. Optionally, the RRC may pass this parameter to the PDCP layer for use.

[0653] In at least one embodiment, the MAC CE instructs the UE to use / not use, or to activate / deactivate, a PSI-based discarding mechanism. In at least one embodiment, the MAC CE may include a threshold or classification criterion (used to distinguish PSI levels or types, or whether they are important or unimportant, or which PDU sets perform PSI-based discarding processing), and / or the value of a timer corresponding to a specific PSI or a discarding timer corresponding to a specific PSI. In some embodiments, if the above parameters are present, or at least one of the parameters is present, the UE uses or activates PSI-based discarding; otherwise, the UE does not use or deactivates PSI-based discarding. In at least one embodiment, after receiving the above MAC CE, the UE MAC may instruct the UE's PDCP to use / not use, or to activate / deactivate, a PSI-based discarding mechanism, and / or the above parameters (e.g., threshold or classification criterion, or the value of a timer corresponding to a specific PSI or a discarding timer corresponding to a specific PSI).

[0654] In at least one embodiment, the aforementioned PDCP control PDU indication can be used to instruct the UE to use / not use, or to activate / deactivate, the PSI-based discarding mechanism. In at least one embodiment, the transmission of the PDCP information, such as the PDCP control PDU indication, can be based on this requirement, or triggered using a new triggering mechanism. In at least one embodiment, the aforementioned control PDU includes thresholds or classification criteria (used to distinguish PSI levels or types, or whether they are important or unimportant, or which PDU sets perform PSI-based discarding processing), and / or the value of a timer corresponding to a specific PSI or a discarding timer corresponding to a specific PSI. In some embodiments, if the aforementioned parameters occur, or at least one of the parameters occurs, the UE uses or activates PSI-based discarding; otherwise, the UE does not use or deactivates PSI-based discarding.

[0655] In at least one embodiment, the UE can determine whether to use or activate PSI-based discarding based on the DCI indication. In at least one embodiment, the DCI may indicate parameters of the above mechanism, including thresholds or classification criteria (used to distinguish PSI levels or types, or whether they are important or unimportant, or which PDU sets perform PSI-based discarding processing), and / or the value of a timer corresponding to a specific PSI or a discard timer corresponding to a specific PSI. In some embodiments, if the above parameters are present, or at least one of the parameters is present, the UE uses or activates PSI-based discarding; otherwise, the UE does not use or deactivates PSI-based discarding. In at least one embodiment, after receiving the above DCI, the UE physical layer may instruct the UE's PDCP to use / not use, or activate / deactivate the PSI-based discarding mechanism, and / or the above parameters (e.g., thresholds or classification criteria or the value of a timer corresponding to a specific PSI or a discard timer corresponding to a specific PSI).

[0656] In at least one embodiment, the duration of the PSI-specific discard timer can be 0 or a non-zero value.

[0657] For example, PSI-based drop can be enabled / disabled via on / off information. That is, if a specific indication is set to enable or a specific parameter is configured, the UE will apply PSI-based XR drop or PSI-based data drop. For example, the "on" operation is always active until the network commands the UE to disable the drop operation.

[0658] For example, a threshold can be introduced as a specific parameter for PSI-based dropping to classify PDU sets as important or unimportant. In this way, the UE can drop sets of PDUs with lower importance based on the threshold. Alternatively, the UE can use a separate drop timer (or timer value) based on a configured threshold to drop sets of lower importance (if the network has configured such a separate drop timer or timer value for flexible congestion handling).

[0659] For example, a PSI-based drop configuration should include a threshold for classifying PDU sets as important or unimportant. This way, when a UE receives a PSI-based drop configuration, it will drop PDU sets whose PSI meets the configured threshold (e.g., greater than the threshold, or less than the threshold, to drop less important PDU sets ASAP as quickly as possible). Alternatively, when a UE receives a PSI-based drop configuration, it can use a separate drop timer (or timer value) to drop PDU sets whose PSI meets the configured threshold (e.g., greater than the threshold, or less than the threshold). If this separate drop timer or timer value is also included in the PSI-based drop configuration or configured for the UE, it allows for flexible congestion handling.

[0660] Example 9: Related packet processing In at least one embodiment, Example 9 can be used in energy-saving scenarios or non-energy-saving scenarios.

[0661] In at least one embodiment, Example 9 can be used for a specific UE scenario, or a UE group scenario, or a specific service (such as XR) scenario, or a multimodal scenario, or a scenario involving all UEs or services.

[0662] The related data packets involved in Example 9 may belong to different UEs, and these different UEs may be operating at different base stations.

[0663] The related data packets involved in Example 9 may belong to different UEs, and these different UEs may be operating at the same base station.

[0664] In some embodiments, the aforementioned related data packets may be data packets, QoS streams, or PDU sessions that have synchronization or cooperative transmission requirements.

[0665] In some embodiments, the processing of the aforementioned related data packets can also be understood as the processing of the relevant UE, or the processing of the aforementioned related data packets by the relevant UE.

[0666] In some embodiments, the aforementioned related UE can be a UE with synchronization requirements or cooperative transmission requirements.

[0667] Taking UE1 and UE2 as examples, in some embodiments, UE1 may report first information to the network, and / or the network may indicate second information to UE2. The purpose is to ensure relevant data transmission requirements (e.g., synchronization, transmission over a period of time, or cooperative transmission).

[0668] In some embodiments, the network may indicate second information to other relevant UEs (such as UE2). The second information may be indication information (e.g., including at least one of the following: PDCP status report, SDAP status report, RLC status report, HARQ feedback, ARQ feedback, indicating which resources to prioritize for transmission, which HARQ processes to prioritize for selection, which PDUs or PDU sets to delete, which PDU sets or PDUs do not need to be transmitted, which PDUs or PDU sets to retransmit, which MAC PDUs to retransmit, whether to use PDU or PDU set-based operations, whether to report information of relevant UEs, whether to report information of relevant data packets, indicating to report at least one of BSR / latency / power), or configuration information (e.g., including at least one of the following: configuring or adjusting PDCP configuration (e.g., dropping, copying transmission, multiplexing), configuring or adjusting LCH configuration (e.g., LCH mapping restrictions or LCP parameters), configuring or adjusting CG / DG resource configuration, configuring or adjusting physical layer parameters or resources).

[0669] In some embodiments, the network may indicate second information to other relevant UEs (such as UE2) based on reports from UEs (such as UE1) or the situation of related UEs (such as UE1 / UE2). This second information may be indication information (e.g., including at least one of the following: PDCP status report, SDAP status report, RLC status report, HARQ feedback, ARQ feedback, indicating which resources to prioritize for transmission, which HARQ processes to prioritize, which PDUs or PDU sets to delete, which PDU sets or PDUs do not need to be transmitted, which PDUs or PDU sets to retransmit, which MAC PDUs to retransmit, whether to use PDU-based or PDU set-based operations, whether to report information about related UEs, whether to report information about related data packets, indicating the reporting of at least one of BSR / latency / power), or configuration information (e.g., including at least one of the following: configuring or adjusting PDCP configuration (e.g., dropping, copying transmission, multiplexing), configuring or adjusting LCH configuration (e.g., LCH mapping restrictions or LCP parameters), configuring or adjusting CG / DG resource configuration, configuring or adjusting physical layer parameters or resources).

[0670] In some embodiments, the network may periodically send second information to UE2. In at least one embodiment, this period is pre-configured or network-configured.

[0671] In some embodiments, the network may send second information to UE2 upon event triggering. For example, the network may send second information to UE2 when the latency and / or data volume of the UE's data meet certain conditions. For example, the network may send second information to UE2 during handover. For example, the network may send second information to UE2 upon receiving an indication from another entity.

[0672] In some embodiments, upon receiving the first information, the network may send the second information to UE2.

[0673] In some embodiments, if multiple base stations are involved, upon receiving the first information, the network of UE1 can send information to the network of UE2, wherein the information is the first information, contains the first information, or is a variation of the first information. In at least one embodiment, the information includes a UE identifier.

[0674] In some embodiments, UE1 may report first information to the network, subject to network configuration or instructions.

[0675] In some embodiments, UE1 may report first information to the network when an event is triggered. For example, UE1 may report first information to the network when the latency and / or data volume of UE1's data meet certain conditions. For example, UE1 may report first information to the network during a handover.

[0676] In some embodiments, UE1 may periodically report first information to the network. In at least one embodiment, this period is pre-configured or network-configured.

[0677] In some embodiments, the aforementioned first information may be indication information (e.g., including at least one of the following: PDCP status report, SDAP status report, RLC status report, HARQ feedback, ARQ feedback, indicating which resources to prioritize for transmission, which HARQ processes to prioritize for selection, which PDUs or PDU sets to delete, which PDU sets or PDUs do not need to be transmitted, which PDUs or PDU sets to retransmit, which MAC PDUs to retransmit, whether to use PDU-based or PDU set-based operations, reporting information about the relevant UE, reporting information about the relevant data packets, reporting at least one of BSR / latency / power), or recommended configuration information (e.g., including at least one of the following: recommended configuration or adjustment of PDCP configuration (e.g., dropping, copying transmission, multiplexing), recommended configuration or adjustment of LCH configuration (e.g., LCH mapping restrictions or LCP parameters), recommended configuration or adjustment of CG / DG resource configuration, recommended physical layer parameters or resources, etc.).

[0678] The above text combined Figures 1 to 8 The method embodiments of this application are described in detail below, in conjunction with... Figures 9 to 22 The present application provides a detailed description of the apparatus embodiments. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be found in the foregoing method embodiments.

[0679] Figure 9 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application. Figure 9 The terminal device 900 shown may include an acquisition module 910.

[0680] The acquisition module 910 can be used to acquire first information of a first cell, which is associated with the system information and / or SSB of the first cell; wherein, the first information is acquired based on a first request message from the terminal device; or, the first information is broadcast / indicated by a second cell.

[0681] In at least one embodiment, the first information is used to indicate one or more of the following: some or all system information of the first cell; information related to accessing, camping, selecting or reselecting the first cell; information related to paging in the first cell; and information about paging in the first cell.

[0682] In at least one embodiment, the first information includes one or more of the following: SIB; SIB1; some or all of the SIBs in the other SIBs besides SIB1; some or all of the information contained in the SIB; some or all of the SIBs.

[0683] In at least one embodiment, the first information includes one or more of the following: slice information supported by the first cell; frequency point information of the first cell; frequency point priority information of the first cell; parameter information for selecting the first cell; parameter information for reselecting to the first cell; information on whether access to the first cell is prohibited; configuration information of common channels or common signals; time-frequency resource information of common channels or common signals; configuration information for accessing, selecting, or reselecting the first cell; time-frequency resource information for accessing, selecting, or reselecting the first cell; configuration information for paging in the first cell; and time-frequency resource information for paging in the first cell.

[0684] In at least one embodiment, the broadcast status of the first information is not broadcast; or, the first information is broadcast / instructed based on a request.

[0685] In at least one embodiment, the first cell does not transmit an SSB; or, the first cell does not transmit some or all of an SIB; or, the first cell does not transmit both an SSB and an SIB; or, the first cell does not transmit some or all of the information contained in the SIB; or, the first cell does not transmit system information other than a MIB; or, the first cell does not transmit some or all of an SI; or, the first cell does not transmit some or all of the information contained in the SI; or, the first cell does not transmit a paging message; or, the first cell does not transmit a system information update indication; or, the first cell does not transmit some or all of the common signals or channels.

[0686] In at least one embodiment, the first information is obtained by the terminal device from the first cell, or the first request message is sent to the first cell.

[0687] In at least one embodiment, the first information is obtained by the terminal device from the second cell, or the first request message is sent to the second cell.

[0688] In at least one embodiment, the first information is carried in the system information of the second cell.

[0689] In at least one embodiment, the first request message is sent on a first resource, wherein the first resource is a pre-configured or pre-defined resource, or the first resource is a resource for random access.

[0690] In at least one embodiment, the resources for random access include: resources for transmitting preambles, and / or, PRACH resources.

[0691] In at least one embodiment, the resources for random access correspond to one or more of the following resources: resources of the first cell; dedicated resources for the first information; and dedicated resources for requesting the first information.

[0692] In at least one embodiment, the resources for random access are sent to the terminal device by the second cell.

[0693] In at least one embodiment, the resources for random access are carried in the SIB or dedicated RRC message of the second cell.

[0694] In at least one embodiment, the first request message includes one or more of the following: the value of the first information; the index of the first information; a bitmap of the first information; the value of the requested first information; the index of the requested first information; and a bitmap of the requested first information.

[0695] In at least one embodiment, the first request message is sent upon fulfillment of a first condition, the first condition including at least one of the following: The terminal device detects the SSB of the first cell; the channel quality of the first cell is greater than or equal to a first threshold; the first cell satisfies the R criterion or the S criterion; the first cell is the cell selected or reselected by the terminal device; the terminal device selects or reselects to the first cell; the terminal device has data to be transmitted; the amount of data to be transmitted by the terminal device is greater than a second threshold; the slice required by the terminal device matches the slice supported by the first cell; a final check needs to be performed in the first cell; access needs to be made in the first cell; camping needs to be made in the first cell; data needs to be transmitted in the first cell; selection or reselection to the first cell is required.

[0696] In at least one embodiment, the first request message is a message for random access, or the first request message is an RRC-specific message or a UCI-specific message.

[0697] In at least one embodiment, different first information corresponds to the same first request message; or, multiple first information corresponds to the same first request message; or, different first information corresponds to different first request messages; or, multiple first information corresponds to different first request messages.

[0698] In at least one embodiment, the terminal device further includes: an execution module 920, configured to perform one or more of the following based on the first information: determining whether it is possible to camp on the first cell; determining whether it is possible to select or reselect to the first cell; performing a final check; determining whether to perform a RACH procedure in the first cell; receiving a PDCCH in the first cell; performing a transmission with the first cell; and receiving a paging message from the first cell.

[0699] In at least one embodiment, the first information includes SIB1 of the first cell, and the acquisition module is further configured to acquire second information based on the first information, the second information including one or more of the following: other SIBs of the first cell besides SIB1; SI update of the first cell; RACH configuration of the first cell; paging configuration of the first cell.

[0700] In at least one embodiment, the terminal device further includes: a listening module for listening to paging messages of the first cell, wherein the listening configuration of the paging messages is determined based on the first information.

[0701] In at least one embodiment, the paging message is sent at a location that occurs periodically, or the paging message is sent at a location that occurs intermittently.

[0702] In at least one embodiment, the location where the paging message is sent is used by the terminal device to listen to the paging message.

[0703] In at least one embodiment, the second cell is one of the following: the anchor cell of the first cell; the primary cell of the terminal device; the primary and secondary cells of the terminal device; the cell that provides information about the first cell; the cell that the terminal device is currently accessing, camping on, or selecting; or the cell associated with the first cell.

[0704] In at least one embodiment, the acquisition module 910 may be a transceiver 2230. The terminal device 900 may also include a processor 2210 and a memory 2220, specifically as follows: Figure 22 As shown.

[0705] Figure 10 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application. Figure 10 The terminal device 1000 shown may include a transmitting module 1010.

[0706] The sending module 1010 can be used to send a first message to a first cell, the first message indicating one or more of the following: requesting the first cell to change its state; requesting the first cell to send at least one of SSB, MIB, SIB, and paging messages; requesting the first cell to send some or all of the public signals; the terminal device has a data transmission requirement; the terminal device has a network access requirement; requesting the first cell to activate cell DTX / DRX; requesting the first cell to deactivate cell DTX / DRX; requesting the first cell to modify cell DTX / DRX; requesting the first cell to use recommended cell DTX / DRX parameters; recommending cell DTX / DRX parameters to the first cell.

[0707] In at least one embodiment, the first cell belongs to one or more of the following: an energy-saving cell; a cell in an energy-saving state; a cell in a closed state; a cell using / activating energy-saving technology; a cell with energy-saving capabilities; a cell where energy-saving terminal equipment is hosted, selected, or accessed; or a cell serving energy-saving terminal equipment.

[0708] In at least one embodiment, the first cell does not transmit an SSB; or, the first cell does not transmit a MIB; or, the first cell does not transmit some or all of a SIB; or, the first cell does not transmit both an SSB and a SIB; or, the first cell does not transmit some or all of the information contained in the SIB; or, the first cell does not transmit some or all of the common signals / channels; or, the first cell does not transmit system information other than the MIB; or, the first cell does not transmit some or all of a SIB; or, the first cell does not transmit some or all of the information contained in the SIB; or, the first cell does not transmit a paging message; or, the first cell does not transmit a system information update indication; or, the first cell does not transmit some or all of the common signals or channels.

[0709] In at least one embodiment, the first message is transmitted repeatedly.

[0710] In at least one embodiment, the number of times the first message is repeatedly transmitted is configured or pre-configured by the network device, or determined by the terminal device.

[0711] In at least one embodiment, the terminal device further includes: a determining module 1020, configured to, within a first time period after sending the first message, determine that the first cell is unavailable, or the first cell is blocked from access, or the first cell is blocked from access for a period of time if a first condition is met; wherein the first condition includes one or more of the following: the terminal device has not received a response message to the first message; the first cell has not performed a state transition; the first cell has not sent at least one of SSB, MIB, SIB, and paging messages; the terminal device has not acquired part or all of the public signals of the first cell; the first cell has not activated or deactivated cell DTX / DRX; the first cell has not modified cell DTX / DRX; the first cell has not used the recommended cell DTX / DRX parameters.

[0712] In at least one embodiment, the first message is transmitted N times during the first duration.

[0713] In at least one embodiment, the sending module is further configured to: if the terminal device determines that the first cell is unavailable, or the first cell is blocked from access, or the first cell is blocked from access for a period of time, then the terminal device resends the first message when the first duration is reached.

[0714] In at least one embodiment, the terminal device further includes: a startup module, configured to start a timer when the terminal device sends the first message; wherein the timer includes a first timer, the duration of which is equal to the first duration; or, the timer includes a second timer, the duration of which is equal to the first duration or the second duration.

[0715] In at least one embodiment, the first duration and / or the second duration are used to determine one or more of the following: whether the first cell can be used for the terminal device to camp / select / reselect; whether the first message was successfully sent; whether the network state of the first cell changed; whether the first cell activated or deactivated cell DTX / DRX; whether the first cell modified cell DTX / DRX; whether the first cell used recommended cell DTX / DRX; whether the terminal device can receive at least one of the SSB, MIB, SIB, and paging messages of the first cell; whether the terminal device can receive some or all of the public signals of the first cell; whether the terminal device can access the network from the first cell or perform a RACH procedure in the first cell; whether the terminal device can receive system information other than the MIB of the first cell; whether the terminal device can receive some or all of the SI of the first cell; whether the terminal device can receive some or all of the information contained in the SI of the first cell; whether the terminal device can receive paging messages of the first cell; and whether the terminal device can receive system information update indications of the first cell.

[0716] In at least one embodiment, the transmitting module 1010 may be a transceiver 2230. The terminal device 1000 may also include a processor 2210 and a memory 2220, specifically as follows: Figure 22 As shown.

[0717] Figure 11 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application. Figure 11 The terminal device 1100 shown may include a receiving module 1110.

[0718] The receiving module 1110 is configured to either not receive the PRS of the first cell or receive the PRS of the first cell according to first configuration information if the first cell is in a first state, wherein the first configuration information is used to indicate the PRS configuration of one or more cells; wherein the first state includes one or more of the following: power saving state; off state; state in the inactive period of cell DTX / DRX; state in the period of using power saving technology.

[0719] In at least one embodiment, the first configuration information is determined based on second configuration information, which is used to indicate the DTX / DRX configuration of the first cell.

[0720] In at least one embodiment, the second configuration information is sent to the positioning server by the terminal device, the first cell, or the network device to which the first cell belongs, and the first configuration information is sent to the terminal device by the positioning server.

[0721] In at least one embodiment, the first configuration information is used to configure or adjust the second configuration information, and the second configuration information is used to indicate the DTX / DRX configuration of the first cell.

[0722] In at least one embodiment, the first configuration information is sent by the positioning server to the first cell or the base station of the first cell, or to the terminal device; or, the first configuration information is sent by the positioning server to the terminal device, and the terminal device sends it to the first cell or the base station of the first cell.

[0723] In at least one embodiment, the receiving module 1110 may be a transceiver 2230. The terminal device 1100 may also include a processor 2210 and a memory 2220, specifically as follows: Figure 22 As shown.

[0724] Figure 12 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application. Figure 12 The terminal device 1200 shown may include a receiving module 1210 and a switching module 1220.

[0725] The receiving module 1210 can be used to receive a first handover configuration sent by a first cell, the first handover configuration including one or more handover execution conditions.

[0726] The handover module 1220 can be used to perform cell handover according to the first handover configuration.

[0727] In at least one embodiment, the first cell belongs to one or more of the following: an energy-saving cell; a cell in an energy-saving state; a cell in a closed state; a cell using / activating energy-saving technology; a cell with energy-saving capabilities; a cell where energy-saving terminal equipment is stationed, selected, or accessed; a cell serving energy-saving terminal equipment; or a cell using cell DTX / DRX technology.

[0728] In at least one embodiment, the first cell does not transmit an SSB; or, the first cell does not transmit a MIB; or, the first cell does not transmit some or all of a SIB; or, the first cell does not transmit both an SSB and a SIB; or, the first cell does not transmit some or all of the information contained in the SIB; or, the first cell does not transmit some or all of the common signals / channels; or, the first cell does not transmit system information other than the MIB; or, the first cell does not transmit some or all of a SIB; or, the first cell does not transmit some or all of the information contained in the SIB; or, the first cell does not transmit a paging message; or, the first cell does not transmit a system information update indication; or, the first cell does not transmit some or all of the common signals or channels.

[0729] In at least one embodiment, the one or more handover execution conditions include at least one of the following: channel quality-related handover execution conditions; time-based handover execution conditions; handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell; and handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell.

[0730] In at least one embodiment, the time-based handover execution condition includes a handover execution condition associated with the time when the first cell enters an energy-saving state, activates energy-saving technology, or shuts down.

[0731] In at least one embodiment, the handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell include: handover execution conditions related to the state or state transition of the first cell entering an energy-saving state, activating energy-saving technology, or turning off the cell; or, handover execution conditions are indicated by indication information indicating that the first cell enters an energy-saving state, activates energy-saving technology, or turns off the cell. The handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell include: handover execution conditions related to the state or state transition of the first cell entering an energy-saving state, activating energy-saving technology, or turning off the cell; or, handover execution conditions are indicated by indication information indicating that the first cell enters an energy-saving state, activates energy-saving technology, or turns off the cell.

[0732] In at least one embodiment, the terminal device further includes: an execution module, configured to perform one or more of the following when a second condition is met: perform cell handover, determine that a handover event is met, and determine a target candidate cell that meets the handover execution condition as a triggering cell; wherein the second condition includes: if the handover execution condition includes one, the one handover execution condition is met; or, if the handover execution condition includes multiple, all multiple handover execution conditions are met.

[0733] In at least one embodiment, each of the one or more switching execution conditions is configured or executed individually, or at least two of the multiple switching execution conditions are configured or executed jointly.

[0734] In at least one embodiment, the first handover configuration configures only one of the following handover execution conditions: channel quality-related handover execution conditions; time-based handover execution conditions; handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell; and handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell.

[0735] In at least one embodiment, one of the following handover execution conditions needs to be configured or executed simultaneously with other handover execution conditions: time-based handover execution conditions; handover execution conditions related to the energy-saving status, state transition, or state indication of the source cell; and handover execution conditions related to the energy-saving status, state transition, or state indication of the target cell.

[0736] In at least one embodiment, the one or more handover execution conditions include channel quality-related handover execution conditions and time-based handover execution conditions. If the channel quality-related handover execution conditions and the time-based handover execution conditions are included in the same handover configuration, the terminal device performs cell handover if both the channel quality-related handover execution conditions and the time-based handover execution conditions are met; and / or if the channel quality-related handover execution conditions and the time-based handover execution conditions are included in different handover configurations, the terminal device performs cell handover if the channel quality-related handover execution conditions are met; and / or if the channel quality-related handover execution conditions and the time-based handover execution conditions are included in different handover configurations, the terminal device performs cell handover if the time-based handover execution conditions are met.

[0737] In at least one embodiment, the one or more handover execution conditions include channel quality-related handover execution conditions and at least one of the following: handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell, and handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell; if the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell are included in the same handover configuration, then the terminal device performs cell handover if both the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell are satisfied; and / or if the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell are included in the same handover configuration, then the terminal device performs cell handover if both the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell are satisfied; and / or if the channel quality-related handover execution conditions and the energy-saving state of the source cell are satisfied... If the handover execution conditions related to the state transition or state indication are included in different handover configurations, the terminal device performs cell handover if the channel quality-related handover execution conditions are met; and / or if the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell are included in different handover configurations, the terminal device performs cell handover if the channel quality-related handover execution conditions are met; and / or if the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell are included in different handover configurations, the terminal device performs cell handover if the energy-saving state, state transition, or state indication of the source cell is met; and / or if the channel quality-related handover execution conditions and the handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell are included in different handover configurations, the terminal device performs cell handover if the energy-saving state, state transition, or state indication of the target cell is met.

[0738] In at least one embodiment, the one or more handover execution conditions include the channel quality-related handover execution conditions, and the terminal device performs cell handover when the channel quality-related handover execution conditions are met.

[0739] In at least one embodiment, the one or more handover execution conditions include the time-based handover execution conditions, and the terminal device performs cell handover when the time-based handover execution conditions are met.

[0740] In at least one embodiment, if the one or more handover execution conditions include handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell, then the terminal device performs cell handover if the handover execution conditions related to the energy-saving state, state transition, or state indication of the source cell are met; or if the one or more handover execution conditions include handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell, then the terminal device performs cell handover if the handover execution conditions related to the energy-saving state, state transition, or state indication of the target cell are met.

[0741] In at least one embodiment, the receiving module 1210 may be a transceiver 2230, and the switching module may be a processor 2210. The terminal device 1200 may also include a memory 2220, specifically as follows: Figure 22 As shown.

[0742] Figure 13 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application. Figure 13 The terminal device 1300 shown can be any of the first terminal devices described above, and the terminal device 1300 may include an acquisition module 1310.

[0743] The acquisition module 1310 can be used to acquire third information of the first cell, the third information being used to determine one or more of the following: whether the first terminal device can access / select / reselect the first cell; whether the second terminal device can access / select / reselect the first cell; whether the first cell is blocked; whether the first cell is a candidate cell; whether the first cell is a reserved cell.

[0744] In at least one embodiment, the third information is carried in SIB1 or MIB, and / or the third information is cell reservation information or cell prohibition information, and / or the third information is prohibition information to determine whether a cell is a reserved cell or a prohibited cell.

[0745] In at least one embodiment, the first cell includes fourth information, which is used by the second terminal device to determine one or more of the following: whether the second terminal device can access / select / reselect the first cell; whether the first cell is blocked; whether the first cell is a candidate cell; whether the first cell is a suitable or acceptable cell; whether the first cell is a reserved cell; wherein the fourth information is obtained by the second terminal device when: obtaining the third information, determining that the third information indicates reservation or blocking, or ignoring the third information.

[0746] In at least one embodiment, the fourth information is carried in SIB1 or MIB.

[0747] In at least one embodiment, the fourth information is instruction information specific to a portion of terminal devices; or, the fourth information is instruction information specific to the second terminal device; or, the fourth information is instruction information specific to at least one of the following types of terminal devices: terminal devices with energy-saving capabilities, terminal devices using energy-saving technologies, specific versions of terminal devices, terminal devices capable of using one or more energy-saving technologies, and terminal devices that are allowed to access or preferentially access or select or reselect the first cell.

[0748] In at least one embodiment, the first terminal device is different from the second terminal device; and / or the first terminal device includes at least one of the following: a terminal device without energy-saving capabilities, a terminal device that does not use energy-saving technologies, a non-specific version of a terminal device, a terminal device that cannot use one or more energy-saving technologies, a terminal device prohibited from accessing the first cell, a terminal device with low priority access to the first cell, a terminal device prohibited from selecting the first cell, a terminal device with low priority selection of the first cell, a terminal device prohibited from reselecting the first cell, and a terminal device with low priority reselection of the first cell; and / or the second terminal device includes at least one of the following: a terminal device with energy-saving capabilities, a terminal device using energy-saving technologies, a specific version of a terminal device, a terminal device capable of using one or more energy-saving technologies, and a terminal device allowed to access... The terminal devices in the first cell are preferentially connected to the terminal devices in the first cell, allowed to select the terminal devices in the first cell, preferentially selected the terminal devices in the first cell, allowed to reselect the terminal devices in the first cell, and preferentially reselected the terminal devices in the first cell; and / or the first cell includes at least one of the following: a cell that preferentially allows the second terminal device to access, select, or reselect, a cell that allows the second terminal device to access, select, or reselect, a cell that gives less preference to the first terminal device to access, select, or reselect, a cell that does not allow the first terminal device to access, select, or reselect; a cell in energy-saving mode; a cell in a closed state; a cell using energy-saving technology; a cell with energy-saving capabilities; a cell where energy-saving terminal devices are stationed, selected, or connected; a cell serving energy-saving terminal devices; and a cell using cell DTX / DRX technology.

[0749] In at least one embodiment, the acquisition module 1310 may be a transceiver 2230. The terminal device 1300 may also include a processor 2210 and a memory 2220, specifically as follows: Figure 22 As shown.

[0750] Figure 14 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application. Figure 14 The terminal device 1400 shown can be any of the second terminal devices described above, and the terminal device 1400 may include an acquisition module 1410 and / or an execution module 1420.

[0751] The acquisition module 1410 can be used to acquire the fourth information of the first cell.

[0752] The execution module 1420 can be used to perform one or more of the following: obtaining third information of the first cell, determining that the third information indicates reservation or prohibition, and ignoring the third information; wherein the fourth information is used to determine one or more of the following: whether the second terminal device can access / select / reselect the first cell; whether the first cell is prohibited; whether the first cell is a candidate cell; whether the first cell is a suitable or acceptable cell; and whether the first cell is a reserved cell.

[0753] In at least one embodiment, the fourth information is carried in SIB1 or MIB.

[0754] In at least one embodiment, the fourth information is instruction information specific to a portion of terminal devices; or, the fourth information is instruction information specific to the second terminal device; or, the fourth information is instruction information specific to at least one of the following types of terminal devices: terminal devices with energy-saving capabilities, terminal devices using energy-saving technologies, specific versions of terminal devices, terminal devices capable of using one or more energy-saving technologies, and terminal devices that are allowed to access or preferentially access or select or reselect the first cell.

[0755] In at least one embodiment, the third information is used to determine one or more of the following: whether the first terminal device can access / select / reselect the first cell; whether the second terminal device can access / select / reselect the first cell; whether the first cell is blocked; whether the first cell is a candidate cell; and whether the first cell is a reserved cell.

[0756] In at least one embodiment, the first terminal device is different from the second terminal device; and / or the first terminal device includes at least one of the following: a terminal device without energy-saving capabilities, a terminal device that does not use energy-saving technologies, a non-specific version of a terminal device, a terminal device that cannot use one or more energy-saving technologies, a terminal device prohibited from accessing the first cell, a terminal device with low priority access to the first cell, a terminal device prohibited from selecting the first cell, a terminal device with low priority selection of the first cell, a terminal device prohibited from reselecting the first cell, and a terminal device with low priority reselection of the first cell; and / or the second terminal device includes at least one of the following: a terminal device with energy-saving capabilities, a terminal device using energy-saving technologies, a specific version of a terminal device, a terminal device capable of using one or more energy-saving technologies, and a terminal device allowed to access... The terminal devices in the first cell are preferentially connected to the terminal devices in the first cell, allowed to select the terminal devices in the first cell, preferentially selected the terminal devices in the first cell, allowed to reselect the terminal devices in the first cell, and preferentially reselected the terminal devices in the first cell; and / or the first cell includes at least one of the following: a cell that preferentially allows the second terminal device to access, select, or reselect, a cell that allows the second terminal device to access, select, or reselect, a cell that gives less preference to the first terminal device to access, select, or reselect, a cell that does not allow the first terminal device to access, select, or reselect; a cell in energy-saving mode; a cell in a closed state; a cell using energy-saving technology; a cell with energy-saving capabilities; a cell where energy-saving terminal devices are stationed, selected, or connected; a cell serving energy-saving terminal devices; and a cell using cell DTX / DRX technology.

[0757] In at least one embodiment, the acquisition module 1410 may be a transceiver 2230, and the execution module 1420 may be a processor 2210. The terminal device 1400 may also include a memory 2220, specifically as follows: Figure 22 As shown.

[0758] Figure 15 This is a schematic diagram of the structure of a network device provided in an embodiment of this application. Figure 15 The network device 1500 shown can be any of the network devices corresponding to the first cell mentioned above. The network device 1500 may include a receiving module 1510 and a transmitting module 1520.

[0759] The receiving module 1510 can be used to receive a first request message sent by the terminal device. The first request message is used to obtain first information of the first cell. The first information is associated with the system information and / or SSB of the first cell.

[0760] The sending module 1520 can be used to send the first information to the terminal device.

[0761] In at least one embodiment, the first information is used to indicate one or more of the following: part or all of the system information of the first cell; information related to accessing, camping, selecting or reselecting the first cell; information related to paging in the first cell or information about paging in the first cell.

[0762] In at least one embodiment, the first information includes one or more of the following: SIB; SIB1; some or all of the SIBs in the other SIBs besides SIB1; some or all of the information contained in the SIB; some or all of the SIBs.

[0763] In at least one embodiment, the first information includes one or more of the following: slice information supported by the first cell; frequency point information of the first cell; frequency point priority information of the first cell; parameter information for selecting or reselecting to the first cell; information on whether access to the first cell is prohibited; configuration information of common channels or common signals; time-frequency resource information of common channels or common signals; configuration information for accessing or selecting or reselecting the first cell; time-frequency resource information for accessing or selecting or reselecting the first cell; configuration information for paging in the first cell; and time-frequency resource information for paging in the first cell.

[0764] In at least one embodiment, the broadcast status of the first information is not broadcast; or, the first information is broadcast / instructed based on a request.

[0765] In at least one embodiment, the first cell does not transmit an SSB; or, the first cell does not transmit some or all of an SIB; or, the first cell does not transmit both an SSB and an SIB; or, the first cell does not transmit some or all of the information contained in the SIB; or, the first cell does not transmit system information other than a MIB; or, the first cell does not transmit some or all of an SI; or, the first cell does not transmit some or all of the information contained in the SI; or, the first cell does not transmit a paging message; or, the first cell does not transmit a system information update indication; or, the first cell does not transmit some or all of the common signals or channels.

[0766] In at least one embodiment, the first request message is sent on a first resource, wherein the first resource is a pre-configured or pre-defined resource, or the first resource is a resource for random access.

[0767] In at least one embodiment, the resources for random access include: resources for transmitting preambles, and / or, PRACH resources.

[0768] In at least one embodiment, the resources for random access correspond to one or more of the following resources: resources of the first cell; dedicated resources for the first information; and dedicated resources for requesting the first information.

[0769] In at least one embodiment, the resources for random access are sent to the terminal device by the second cell.

[0770] In at least one embodiment, the resources for random access are carried in the SIB or dedicated RRC message of the second cell.

[0771] In at least one embodiment, the second cell is one of the following: the anchor cell of the first cell; the primary cell of the terminal device; the primary and secondary cells of the terminal device; the cell that provides information ...

Claims

1. A method for wireless communication, characterized in that, include: The terminal device obtains the first information of the first cell; The first information is obtained based on a first request message from the terminal device; or the first information is broadcast / instructed by the second cell.

2. The method according to claim 1, characterized in that, The first information includes one or more of the following: SIB1; Some or all of the SIBs in the other SIBs besides SIB1 in the SIB; SIB contains some or all of the information in the information; Partial or complete SI.

3. The method according to any one of claims 1-2, characterized in that, The first information includes one or more of the following: Select the parameter information for the first cell; Information regarding whether the first cell blocks access; Configuration information for common channels or common signals; Time-frequency resource information for common channels or common signals; Configuration information for paging in the first cell.

4. The method according to any one of claims 1-3, characterized in that, The first information is broadcast in a non-broadcast state; or, the first information is broadcast / instructed based on a request; wherein, the first cell is a cell that does not actively send the first information, but may send the first information upon request from the terminal device, base station, or other cell; and / or, the second cell is a cell that provides information from the first cell; The first cell does not transmit some or all of the SIBs; or, The first cell does not transmit some or all of the information contained in the SIB; or... The first cell does not transmit part or all of the SI; or, The first cell does not transmit some or all of the information contained in the SI; or... No system information update instruction is sent in the first cell; or The first cell does not transmit some or all of the public signals or channels; Wherein, the first information is obtained by the terminal device from the first cell, or the first request message is sent to the first cell.

5. The method according to any one of claims 1-4, characterized in that, The first request message is sent on a first resource, wherein the first resource is a pre-configured or pre-defined resource, or the first resource is a resource for random access, the resource for random access including: a resource for transmitting a preamble, and / or a Physical Random Access Channel (PRACH) resource, the resource for random access corresponding to one or more of the following resources: The dedicated resources for the first information; A dedicated resource used to request the first information.

6. The method according to claim 5, characterized in that, The resources for random access are sent to the terminal device by the second cell, and the resources for random access are carried in the SIB or dedicated RRC message of the second cell.

7. The method according to any one of claims 1-6, characterized in that, The first request message is sent under the condition that a first condition is met, which includes at least one of the following: The terminal device detected the SSB of the first cell; The first cell satisfies either the R criterion or the S criterion.

8. The method according to any one of claims 1-7, characterized in that, The method further includes: The terminal device performs one or more of the following actions based on the first information: Determine whether it is possible to stay in the first residential area; Determine whether it is possible to select or reselect to the first cell; Perform a final inspection; Determine whether to perform the RACH procedure in the first cell; Receive PDCCH in the first cell; Perform the transmission with the first cell; Receive the paging message from the first cell.

9. The method according to any one of claims 1-8, characterized in that, The first information includes the SIB1 of the first cell, and the method further includes: The terminal device obtains second information based on the first information, the second information including one or more of the following: The other SIBs of the first cell besides SIB1; SI update for the first cell; RACH configuration of the first cell; Paging configuration of the first cell.

10. The method according to claim 1, characterized in that, Also includes: The terminal device sends a first message to the first cell, the first message indicating one or more of the following: The first cell is requested to send at least one of the following: SSB, MIB, SIB, and paging message; Request the first cell to send some or all of the public signals.

11. The method according to claim 10, characterized in that, When the terminal device requests the first cell to send the SIB, the SIB is SIB1.

12. The method according to claim 10 or 11, characterized in that, The first message is transmitted repeatedly.

13. The method according to claim 12, characterized in that, The number of times the first message is repeatedly transmitted is configured by the network device, pre-configured, or determined by the terminal device.

14. The method according to any one of claims 10-13, characterized in that, The method further includes: Within a first time period after sending the first message, if the first condition is met, the terminal device determines that the first cell is unavailable, or the first cell is blocked from access, or the first cell is blocked from access for a period of time. The first condition includes one or more of the following: The terminal device did not receive a response message for the first message.

15. The method according to claim 14, characterized in that, The method further includes: When the terminal device sends the first message, the terminal device starts a timer; Wherein, the timer includes a first timer, the duration of which is equal to the first duration; or, the timer includes a second timer, the duration of which is equal to the first duration or the second duration, wherein the first duration and / or the second duration is used to determine one or more of the following: Did the first message go through successfully? 16. A method for wireless communication, characterized in that, include: The network device to which the first cell belongs receives a first request message sent by the terminal device, the first request message being used to obtain first information about the first cell; The network device sends the first information to the terminal device.

17. The method according to claim 16, characterized in that, The first information includes one or more of the following: SIB1; Some or all of the SIBs in the other SIBs besides SIB1 in the SIB; SIB contains some or all of the information in the information; Partial or complete SI.

18. A method for wireless communication, characterized in that, include: The network equipment belonging to the second cell sends the first information of the first cell to the terminal device.

19. A terminal device, characterized in that, include: The acquisition module is used to acquire the first information of the first cell; The first information is obtained based on a first request message from the terminal device; or the first information is broadcast / instructed by the second cell.

20. A terminal device, characterized in that, It includes a memory and a processor, the memory being used to store a program, and the processor being used to invoke the program in the memory to cause the terminal device to perform the method as described in any one of claims 1-15.

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