Communication method, apparatus, terminal, network-side device, and medium

Abstract

The application discloses a communication method, device, terminal, network side equipment and medium, and belongs to the technical field of communication. The communication method of the application comprises the following steps: a user equipment (UE) camps on a first cell; the UE performs at least one of the following: determining whether the state of the first cell changes from a first state to a second state or a third state; and sending first information to a network side equipment of the first cell, wherein the first information is used for indicating the demand of the UE for second information.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a communication method, device, terminal, network-side equipment, and medium. Background Technology

[0002] With the rapid development of communication technology, network energy saving (NES) has become an important research direction.

[0003] Currently, in 6G NES scenarios, once a User Equipment (UE) camps on a cell, the lack of a synchronization mechanism for energy-saving states between the cell and the UE leads to degraded communication performance. For example, the UE may fail to match the cell's energy-saving policy and still execute resource requests in the default mode, resulting in resource allocation conflicts. Therefore, how to implement an energy-saving coordination mechanism between the UE and network-side equipment is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a communication method, apparatus, terminal, network-side device, and medium that can realize an energy-saving collaborative mechanism between the UE and the network-side device, thereby improving communication performance.

[0005] In a first aspect, a communication method is provided, the method comprising: a user equipment (UE) camping on a first cell, the UE performing at least one of the following: determining whether the state of the first cell has changed from a first state to a second state or a third state; and sending first information to a network-side device of the first cell, the first information being used to indicate the UE's request for second information.

[0006] In a second aspect, a communication method is provided, the method comprising: a network-side device performing at least one of the following: changing the state of a first cell from a first state to a second state or a third state; sending fourth information to a user equipment (UE) for triggering the UE to send first information, the first information for indicating the UE's request for second information.

[0007] Thirdly, a communication apparatus is provided, the apparatus comprising: a processing module; the processing module being configured to, when a user equipment (UE) is camped in a first cell, perform at least one of the following: determining whether the state of the first cell has changed from a first state to a second state or a third state; and sending first information to a network-side device of the first cell, the first information being used to indicate the UE's request for second information.

[0008] Fourthly, a communication apparatus is provided, comprising: a processing module; the processing module being configured to perform at least one of the following: changing the state of a first cell from a first state to a second state or a third state; sending fourth information to a user equipment (UE), the fourth information being used to trigger the UE to send first information, the first information being used to indicate the UE's request for second information.

[0009] Fifthly, a communication device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0010] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0011] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is configured to, while a user equipment (UE) is camped in a first cell, perform at least one of the following: determine whether the state of the first cell has changed from a first state to a second state or a third state; and send first information to the network-side equipment of the first cell, the first information being used to indicate the UE's request for second information.

[0012] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0013] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the processor is configured to perform at least one of the following: changing the state of a first cell from a first state to a second state or a third state; sending fourth information to a user equipment (UE), the fourth information being used to trigger the UE to send first information, the first information being used to indicate the UE's request for second information.

[0014] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0015] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0016] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0017] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the communication method as described in the first aspect, or to implement the steps of the communication method as described in the second aspect.

[0018] In this embodiment, the UE camps in a first cell and performs at least one of the following: determining whether the state of the first cell has changed from a first state to a second state or a third state; and sending first information to the network-side device of the first cell, the first information indicating the UE's need for second information. Through this scheme, when the UE's camped cell changes from a first state to a second or third state, the UE can determine the state change of the camped cell, enabling the UE to promptly learn about the change in the camped cell state and thus execute corresponding communication strategies. And / or, the UE can send information indicating its need for second information to the network-side device, allowing the network-side device to make reasonable decisions based on the UE's need for second information. Thus, an energy-saving collaborative mechanism between the UE and the network-side device is realized, thereby improving communication performance. Attached Figure Description

[0019] Figure 1 A block diagram of a wireless communication system provided for some embodiments of this application;

[0020] Figure 2 A flowchart illustrating the random access procedure provided for some embodiments of this application;

[0021] Figure 3 A flowchart illustrating a communication method provided for some embodiments of this application;

[0022] Figure 4 A flowchart illustrating a communication method provided for some embodiments of this application;

[0023] Figure 5 A flowchart illustrating a communication method provided for some embodiments of this application;

[0024] Figure 6 A flowchart illustrating a communication method provided for some embodiments of this application;

[0025] Figure 7 Schematic diagrams of the communication device provided for some embodiments of this application;

[0026] Figure 8 Schematic diagrams of the communication device provided for some embodiments of this application;

[0027] Figure 9 Schematic diagrams of the structure of communication devices provided for some embodiments of this application;

[0028] Figure 10 A schematic diagram of the hardware structure of a terminal provided for some embodiments of this application;

[0029] Figure 11 This is a schematic diagram of the hardware structure of a network-side device provided for some embodiments of this application. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0031] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0033] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0034] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0035] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support Function. Support Functions (BSF), Application Functions (AF), Location Management Functions (LMF), Gateway Mobile Location Centres (GMLC), and Network Data Analytics Functions (NWDAF), etc. It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0036] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0037] The following explains the relevant technical terms used in the embodiments of this application.

[0038] 5G R19 / 6G Network Energy Saving (NES): Network energy saving is crucial for environmental sustainability, reducing environmental impacts (such as greenhouse gas emissions), and saving operating costs. With the increasing prevalence of 5G across various industries and geographic regions, more advanced services and applications requiring very high data rates, such as Extended Reality (XR), are leading to denser networks using more antennas, larger bandwidths, and more frequency bands. The environmental impact of 5G needs to be controlled, and new solutions need to be developed to improve network energy efficiency. To this end, 3GPP initiated network energy saving projects in R18 and R19, defining several energy-saving directions, one of which is ondemand transmission of System Information Block 1 (SIB1) for IDLE / INACTIVE UEs. This means that System Information Block 1 (SIB1) can be transmitted on demand based on the needs of the User Equipment (UE). Furthermore, to prevent UEs from arbitrarily requesting SIB1, the triggering conditions need to be defined.

[0039] On-demand SIB1 Random Access Channel (RACH) procedure: as follows Figure 2 As shown, the UE will receive an OD-SIB1 request configuration for a Network Energy Saving Cell (NES cell) (obtained from other cells or the NES cell, or predefined). Under certain conditions, the UE will send a request to the network (NES cell), that is, send a Random Access Preamble to the network. After receiving the request, the network will send a response to the UE, that is, send a Random Access Response to the UE, and then send SIB1.

[0040] In 6G NES, a potential scenario is that during cell selection, the UE may encounter an NES cell that does not send a synchronization signal and a physical broadcast channel block (SSB) and SIB1. In this scenario, after a UE sends an uplink (UL) wake-up signal (WUS) requesting that the SSB and SIB1 of this NES cell camp on that NES cell, how the UE and the network-side equipment will conduct subsequent communication and synchronization is currently undetermined.

[0041] The communication method provided in this application embodiment allows the UE to determine whether the state of the first cell has changed from a first state to a second or third state, enabling the UE to promptly and accurately learn about changes in the cell state and adjust its communication strategy and behavior accordingly. For example, when the cell state changes from a non-energy-saving state (e.g., the first state) to an energy-saving state (e.g., the second state), the UE can send information to the network-side device to request the delivery of SSB and / or SIB1. On the other hand, the UE can send first information to the network-side device to indicate a need for second information, allowing the network-side device to make reasonable decisions based on the UE's actual needs. For example, if the UE informs the network-side device that it needs second information (e.g., SSB), the network-side device may not change from the energy-saving state to a non-energy-saving state; conversely, if the UE informs the network-side device that it does not need the second information, the network-side device may change from the energy-saving state to a non-energy-saving state to save network resources. This achieves more flexible interaction between the UE and the network-side device, thereby improving communication performance.

[0042] The communication method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0043] Figure 3 A flowchart illustrating the communication method provided in the embodiments of this application is shown below. Figure 3 As shown, the communication method may include the following step 201:

[0044] Step 201: The UE is camped in the first cell, and the UE performs at least one of the following:

[0045] Determine whether the status of the first cell has changed from the first status to the second or third status.

[0046] Send first information to the network-side equipment of the first cell, which is used to indicate the UE's need for second information.

[0047] In some embodiments of this application, the UE can be a non-connected UE (such as an RRC-INACTIVE UE or an RRC-IDLE UE) or a connected UE (such as an RRC-CONNECTED UE).

[0048] In some embodiments of this application, the first cell mentioned above may be the serving cell or the cell where the UE is camped.

[0049] In some embodiments of this application, the first cell may be an NES cell or a non-NES cell.

[0050] In some embodiments of this application, the network-side equipment described above may be a base station, a Transmission Reception Point (TRP), etc.

[0051] In some embodiments of this application, the first state described above includes at least one of the following:

[0052] The transmission of the second message does not require a request from the UE;

[0053] The network-side device sends a second message;

[0054] The network-side device sends the second information within the first time period, the timer's timing period, or the first window, or sends the second information temporarily.

[0055] Non-energy-saving state;

[0056] The network-side equipment does not listen for requests for the second information sent by the UE.

[0057] In some embodiments of this application, the second information described above may include at least one of SSB and SIB 1.

[0058] It should be noted that the second information can also be other downlink information, which can be determined according to actual needs. This application does not limit this.

[0059] In some embodiments of this application, when the first cell is in a first state, the first cell can actively send second information to the UE. For example, the first cell sends SSBs in a periodic manner.

[0060] It should be noted that the first state indicates that the first cell is in a state of actively providing the second information, and the UE can receive the second information without requesting it.

[0061] It should be noted that the fact that the transmission of the second information does not need to be based on the UE's request means that the network-side device can actively send the second information (such as SSB) without the UE requesting the second information.

[0062] It should be noted that "the network-side device sends a second message" emphasizes that the network-side device has the behavior of sending a second message; "the network-side device sends a second message within a first time period, within the timer's timing period, or within a first window" or "the network-side device sends a second message temporarily" emphasizes the time or condition range for sending the second message.

[0063] In some embodiments of this application, the second state described above includes at least one of the following:

[0064] The transmission of the second message requires a UE request;

[0065] The network-side equipment listens for requests for the second information sent by the UE;

[0066] The network-side device did not send a second message;

[0067] The network-side device failed to send the second information within the first time period, the timer's timing period, or the first window, or failed to send the second information temporarily.

[0068] Energy saving status.

[0069] It should be noted that the second state indicates that the first cell is in a passive state of providing the second information, and the second information is only sent upon request from the UE. For example, the first cell sends SSBs in an on-demand mode.

[0070] In some embodiments of this application, the aforementioned third state includes at least one of the following:

[0071] The network-side equipment does not listen for requests for the second information sent by the UE;

[0072] The network-side device did not send a second message;

[0073] Energy saving status.

[0074] It should be noted that the third state indicates that the first cell is in a more energy-efficient state, neither sending the second information nor listening for the UE's request for the second information. For example, the first cell does not send an SSB.

[0075] In some possible implementations, the UE may receive first indication information from the network-side device and determine whether the state of the first cell has changed from the first state to the second state or the third state based on the first indication information.

[0076] For example, the first indication information may include the changed status information (such as indicating a change to a second or third status), or the first indication information may only indicate a change in status, and the UE may need to combine other information to further determine the specific changed status.

[0077] In some possible implementations, the UE can determine whether the state of the first cell has changed from the first state to the second state or the third state by detecting the second information of the network-side device, or checking whether there is a stored or valid configuration for requesting the second information (i.e., the first configuration), or detecting whether a Random Access Response (RAR) is received after requesting the first cell to send the second information through the first configuration, or detecting whether the second information is received after receiving the RAR.

[0078] In some examples, the UE can detect the second information sent by the network-side device. If no second information is sent, it can preliminarily determine that the state of the first cell has changed, such as from the first state to the second or third state.

[0079] In some examples, the UE can check whether there is a stored or valid configuration for requesting the second information (i.e., the first configuration). If it is determined that the configuration for requesting the second information does not exist or has expired, it can determine that the state of the first cell has changed, for example, from the first state to the second or third state.

[0080] In some examples, the UE can detect whether it has received the RAR after sending the second information through the first configuration request to the first cell. If the RAR is not received, or if the second information is not received after receiving the RAR, it can be determined that the state of the first cell has changed, for example, from the first state to the second or third state.

[0081] In some embodiments of this application, the UE can determine its behavior based on the state of the first cell. For example, it can request or receive second information. Furthermore, the UE can dynamically adjust its behavior based on changes in the state of the first cell.

[0082] In some examples, if the UE does not change from a first state (e.g., energy-saving state) to a second state (e.g., non-energy-saving state) or a third state (e.g., a more energy-saving state) in the first cell, meaning the first cell remains in the first state, the UE can directly receive the second information from the network-side device without requesting it. For example, if the first cell periodically transmits SSBs, the UE can directly receive the SSBs.

[0083] In some examples, when the first cell changes from a first state to a second state, the UE can request second information from the network-side device to receive second information from the network-side device. For example, when the first cell changes from periodically transmitting SSBs to transmitting SSBs on demand, the UE can request the network-side device to transmit SSBs.

[0084] In some examples, when the UE changes from a first state to a third state in the first cell, the network-side device will not listen for requests for the second information in the third state, so the UE may not request the second information from the network-side device. For example, when the first cell changes from periodically sending SSBs to not sending SSBs, the UE may not request the SSBs from the network-side device.

[0085] In some embodiments of this application, the UE can determine whether the state of the first cell changes from the second state to the first state or the third state.

[0086] In some embodiments of this application, the UE can determine whether the state of the first cell changes from the third state to the first state or the second state.

[0087] In the embodiments of this application, the UE can determine whether the state of the first cell changes from the second state (such as the energy-saving state) to the first state (such as the non-energy-saving state) or the third state, or the UE can determine whether the state of the first cell changes from the third state to the first state or the second state. In this way, the UE can dynamically adjust its own communication strategy according to the change of the cell state, such as adjusting the request strategy for SSB or SIB1, thereby optimizing the communication performance between the UE and the network-side equipment.

[0088] In some embodiments of this application, the UE may send first information to the network-side device of the first cell, the first information being used to indicate the UE's need for second information. By sending the first information, the UE can proactively inform the network-side device of its own need for the second information.

[0089] In some embodiments of this application, the network-side device may receive first information from the UE.

[0090] In some embodiments of this application, the network-side device can make corresponding decisions based on the UE's demand for second information indicated by the first information.

[0091] In some examples, the first cell can periodically send the second information (such as SSB) and then switch back to on-demand sending mode or no sending mode. For example, if there is no UE camped in the first cell, the first cell can periodically send the SSB and then switch back to no sending mode.

[0092] In some embodiments of this application, the first information mentioned above includes at least one of the following:

[0093] Dedicated preamble;

[0094] Random Access Message 3 (Msg 3);

[0095] Random Access Message A (Msg A) uplink physical shared channel (PUSCH);

[0096] Radio Resource Control (RRC) message;

[0097] Media Access Control Element (MAC CE);

[0098] Information sent during the target random access occasion (RO);

[0099] Information transmitted on the target logical channel (LCH).

[0100] It should be noted that Msg A PUSCH refers to the transmission of PUSCH carrying uplink data or connection requests based on the first step message in a two-step random access (RACH) process.

[0101] In some embodiments of this application, the aforementioned dedicated preamble indicates the UE's need for the second information. Exemplarily, the dedicated preamble can be used by a specific UE to indicate its own need for the second information, or the dedicated preamble can be used by a specific UE in a first cell to indicate its own need for the second information, wherein the specific UE is a UE in the first cell and has a need for the second information.

[0102] In some examples, the UE can indicate the first information using a dedicated preamble and / or a dedicated random access timing. This dedicated preamble and / or dedicated random access timing can correspond to a single UE (i.e., per UE); or the dedicated preamble and / or dedicated random access timing can correspond to a single first information, meaning that any UE within the first cell that wants to indicate a need for the first information can use it; or the dedicated preamble and / or dedicated random access timing can correspond to a group of UEs (i.e., per UE group), meaning that multiple UEs wanting to indicate a need for the first information can be grouped based on the UE.

[0103] In some examples, the UE can indicate the first information via an RRC message. For example, the UE can indicate the first information via the Information Element (IE) field in an RRC Resume Request or RRC Setup Request message. For example, the IE field may include at least one of the following: resumeCause, establishmentCause.

[0104] In some examples, the UE can indicate the first information via MAC CE, that is, the UE can indicate the first information via a specific MAC CE.

[0105] In some examples, the UE can indicate the first information through a specific Logical Channel Identifier (LCID).

[0106] In some embodiments of this application, the UE can send the first information through a random access procedure, for example, by indicating the first information through one of the random access procedures preamble, RO, Msg3, MsgA PUSCH.

[0107] In some embodiments of this application, the first information indicates that the UE needs the second information; or the first information is used to indicate whether the UE needs the second information.

[0108] In some examples, a UE that requires second information can send first information to the network-side device to indicate that it needs second information, or the UE can send first information to the network-side device to indicate whether it needs or does not need second information.

[0109] The communication method provided in this application embodiment involves a UE camping in a first cell. The UE performs at least one of the following: determining whether the state of the first cell has changed from a first state to a second state or a third state; and sending first information to the network-side device of the first cell, the first information indicating the UE's need for second information. Through this scheme, when the UE's camped cell changes from a first state to a second or third state, the UE can determine the state change of the camped cell, enabling the UE to be aware of the change in the camped cell state and thus adjust its communication strategy or behavior in a timely manner according to the cell state. And / or, the UE can send information indicating its need for second information to the network-side device, allowing the network-side device to make reasonable decisions based on the UE's need for second information. This achieves an energy-saving collaborative mechanism between the UE and the network-side device, thereby improving communication performance.

[0110] In some embodiments of this application, the UE can determine the state change of the first cell based on indication information from the network-side device, wherein the indication information is used to indicate the state change of the first cell. For example, the process in step 201 above where the UE determines whether the state of the first cell has changed from a first state to a second or third state may include steps 201a and 201b:

[0111] Step 201a: The UE receives the first indication information from the network-side device.

[0112] Step 201b: The UE determines whether the state of the first cell has changed from the first state to the second state or the third state based on the first indication information.

[0113] The aforementioned first indication information is used to indicate that the first cell changes from a first state to a second state or a third state.

[0114] In some embodiments of this application, the aforementioned first indication information is carried by third information, which includes at least one of the following:

[0115] Dedicated signaling;

[0116] System information;

[0117] Paging messages;

[0118] Short message;

[0119] Downlink Control Information (DCI) corresponding to the paging message;

[0120] Downlink control information (DCI) corresponding to short messages.

[0121] It should be noted that the DCI for paging messages refers to the PDSCH resources used to schedule the paging messages; the DCI for short messages refers to the PDSCH resources used to schedule the short messages.

[0122] In some examples, the aforementioned proprietary signaling may include at least one of the following: RRC Reconfiguration message, RRC Resume message, RRC Setup message, and RRC Release message.

[0123] In some examples, for connected UEs, the network-side device can carry first indication information via proprietary signaling.

[0124] In some examples, the aforementioned system information may include at least one of the following: Master Information Block (MIB), SIB1, or Other System Information (OSI) indication.

[0125] It should be noted that when indicating via system information, the network-side device may either send a short message to notify the system information of a change, or not send a short message to notify the system information of a change.

[0126] In some examples, network-side devices indicate a state change of the first cell via paging messages. For instance, a state change of the first cell can be indicated by carrying first indication information in the paging message within an RRC message.

[0127] In some examples, network-side devices indicate the state change of the first cell via the DCI corresponding to the Paging message and / or short message.

[0128] In some embodiments of this application, the aforementioned third information includes a first field, which is a specific field reserved for the first indication information in the third information, or a related field in the third information that is allowed to be reused;

[0129] In some embodiments of this application, the first field contains one bit, which is used to indicate whether the first cell is in an energy-saving state or a non-energy-saving state; or, the first field contains N bits, which indicate that the first cell is in a target state, which is one of the first state, the second state and the third state, where N is an integer greater than 1.

[0130] In some examples, the state change of the first cell is indicated in the DCI corresponding to the Paging message and / or short message transmission through a dedicated field or by multiplexing other fields. For example, the DCI scrambled with the Paging Radio Network Temporary Identifier (P-RNTI) includes a cell state indication field. This indication field can be 1 bit, where a bit value of 1 corresponds to an energy-saving state and a bit value of 0 corresponds to a non-energy-saving state; or the indication field can contain N bits to indicate the non-energy-saving state and various different energy-saving states.

[0131] In some examples, network-side devices indicate state changes of the first cell via bits in a short message (e.g., at least one of bits 5-8).

[0132] In some embodiments of this application, the UE can determine whether the state of the first cell has changed from the second state to the first state or the third state based on the indication information from the network-side device.

[0133] In some embodiments of this application, the UE can determine whether the state of the first cell has changed from the third state to the first state or the second state based on the indication information from the network-side device.

[0134] In this embodiment, the state change of the first cell is indicated by dedicated signaling, which is then sent to a specific UE without requiring the UE to actively read the broadcast signaling, thus ensuring efficient information transmission; and / or, the state change of the first cell is indicated by system information, which can cover all UEs within the cell, thereby reducing resource waste; and / or, the state change of the first cell is indicated by paging messages, which can wake up the UE only when necessary, avoiding continuous channel listening by the UE and reducing UE power consumption; and / or, the state change of the first cell is indicated by short messages, which can clearly inform the UE of the cell's state change; and / or, the state change of the first cell is indicated by the DCI corresponding to the paging message, which can quickly schedule paging messages and reduce control channel overhead; and / or, the state change of the first cell is indicated by the DCI corresponding to the short message, which can reduce UE waiting time and improve transmission efficiency. Thus, the network-side device can select one or more of the above indication methods according to the UE state (e.g., connected / idle state) and the urgency of indicating the state change, thereby avoiding resource waste.

[0135] In some embodiments of this application, the process of the UE determining whether the state of the first cell has changed from the first state to the second state or the third state in step 201 above may include at least one of the following steps A1 to A4:

[0136] Step A1: If the UE fails to detect the second information of the first cell for N consecutive times, either within a preset time period or after the timer expires, the UE determines that the first cell has changed from the first state to the second or third state, where N is a positive integer.

[0137] Step A2: If the UE fails to detect the second information of the first cell for N consecutive times, or within a preset time period, or after the timer expires, and / or the UE does not have a stored first configuration or does not have a valid first configuration, the UE determines that the first cell has changed from the first state to the second state.

[0138] The first configuration mentioned above is a configuration used to request the first cell to send the second information.

[0139] Step A3: If the UE fails to detect the second information of the first cell for N consecutive times, or within a preset time period, or after the timer expires, and / or the UE does not have a stored first configuration or does not have a valid first configuration, the UE determines that the first cell has changed from the first state to the third state.

[0140] Step A4: If the UE fails to detect the second information of the first cell for N consecutive times, or within a preset time period, or after the timer expires, and / or, the UE has a stored first configuration or a valid first configuration, and / or, the UE does not receive a random access response (RAR) after requesting the first cell to send the second information through the first configuration, and / or, the UE does not receive the second information after receiving the random access response (RAR) after requesting the first cell to send the second information through the first configuration, the UE determines that the first cell has changed from the first state to the second state or the third state.

[0141] It should be noted that if the UE fails to detect the second information of the first cell multiple times or within a certain period of time, it indicates that the first cell will not actively send the second information. In this case, the first cell may change from the first state to the second state or the third state.

[0142] It should be noted that the UE's failure to detect the second information from the first cell can include the following situations: the UE failed to detect the second information sent by the first cell, or the UE failed to receive the second information sent by the first cell. In other words, "detect" in the above description can be replaced with "receive," meaning that "failed to receive" and "failed to detect" have equivalent meanings in this application, both referring to the UE's failure to successfully obtain the second information.

[0143] In some embodiments of this application, the UE detects the second information of the first cell N times consecutively, either within a preset time period or after a timer expires, and the UE determines that the first cell has not changed from the first state to the second state or the third state.

[0144] In some embodiments of this application, the UE detects the second information of the first cell N times consecutively, or within a preset time period, or after the timer expires, and / or the UE has a stored first configuration or a valid first configuration, and the UE determines that the first cell has not changed from the first state to the second state or the third state.

[0145] In some embodiments of this application, the UE detects the second information of the first cell N times consecutively, or within a preset time period, or after the timer expires, and / or, the UE has a stored first configuration or a valid first configuration, and / or, the UE receives a Random Access Response (RAR) after requesting the first cell to send the second information through the first configuration, and / or, the UE receives the second information after requesting the first cell to send the second information through the first configuration, and the UE determines that the first cell has changed from the first state to the second state or the third state.

[0146] It should be noted that the above only lists some possible combinations (such as second information detection, first configuration verification, RAR reception, and subsequent second information detection) to illustrate the core judgment logic and technical means of this application. In practical applications, there may be many more unlisted combinations or variations, such as a combination of second information detection with RAR reception and subsequent information detection, or a comprehensive judgment based on other parameters (such as cell signal strength). As long as the technical means or logical flow are consistent with the core idea of ​​this application, they should all be considered within the scope of protection of this application.

[0147] In this embodiment of the application, by continuously detecting the second information or whether the second information of the first cell is received within a certain period of time, it is determined whether the state of the first cell has changed to the second state or the third state, thereby reducing misjudgment caused by transient interference and improving the accuracy of the judgment.

[0148] In this embodiment, by continuously detecting the second information or whether the second information of the first cell is received within a certain period of time, and combining it with the first configuration of the UE, a comprehensive judgment is made on whether the state of the first cell has changed to the second state or the third state. Configuration verification is introduced to improve the accuracy of state change judgment.

[0149] In this embodiment, by continuously detecting the second information or whether the second information of the first cell is received within a certain period of time, and combining the UE's first configuration and the results of RAR detection, it is comprehensively determined whether the state of the first cell has changed to the second state or the third state. By combining RAR detection, the accuracy of the determination is improved.

[0150] In this embodiment, by continuously detecting the second information or detecting the second information of the first cell within a certain period of time, and combining the UE's first configuration, the result of RAR detection, and the result of subsequent second information detection, a comprehensive judgment is made on whether the state of the first cell has changed to the second state or the third state, thereby further improving the accuracy of the judgment.

[0151] In some embodiments of this application, the process of the UE sending the first information to the network-side device of the first cell in step 201 above may include the following step 201c:

[0152] Step 201c: If the first condition is met, the UE sends the first information to the network-side device.

[0153] The first condition mentioned above includes at least one of the following:

[0154] The UE needs the second information of the first cell;

[0155] The first cell is the UE's serving cell or camped cell;

[0156] The UE receives a fourth message from the network-side device, which is used to trigger the UE to send the first message.

[0157] After the UE camps in the first cell, it reaches the first time point, which is the time point at which the first information is sent every second time interval.

[0158] After the UE receives the fourth information, it reaches the second time point, which is the time point at which the first information is sent every third time interval;

[0159] The conditions for sending the first message.

[0160] In some embodiments of this application, the second duration can be the time period during which the UE periodically sends the first information.

[0161] In some embodiments of this application, the aforementioned third duration may be the time period during which the UE periodically sends the first information.

[0162] In some examples, the UE can send the first information to the network-side device if the second information of the first cell is required.

[0163] In this embodiment of the application, when the UE needs the second information of the first cell, it actively sends the first information so that the network-side device can respond to the UE's needs in a timely manner and avoid invalid resource allocation or information push.

[0164] In some examples, the UE can send the first information to the network-side device when the first cell is the UE's serving cell or camped cell.

[0165] In this embodiment, the transmission of first information is triggered when the first cell is the UE's serving cell or camped cell, ensuring that the first information is related to the current serving cell, thereby optimizing network resource utilization.

[0166] In some examples, the UE sends the first information to the network-side device after receiving the fourth information. This dynamically triggers the transmission of the first information via the fourth information, avoiding blind information transmission by the UE and thus reducing signaling overhead.

[0167] In some examples, after the UE camps on the first cell, it can periodically send the first information according to a preset fixed time period (i.e., the second duration). Specifically, the UE sends the first information every T1 time interval after camping on the first cell. The UE can trigger the first information transmission process every second duration. When the current time reaches the time point (i.e., the first time point) for the UE to send the first information, the UE actively sends the first information to the network-side device. Thus, by periodically sending the first information based on the second duration, the UE only sends the first information at the preset time point, thereby reducing invalid eavesdropping and consequently reducing the UE's power consumption.

[0168] In some examples, after receiving the fourth message from the network-side device, the UE can periodically send the first message according to a preset fixed time period (i.e., the third time interval). That is, the UE sends the first message every T2 time interval after receiving the fourth message from the network-side device. Specifically, the UE can trigger the first message sending process once every third time interval. When the current time reaches the time point (i.e., the second time point) for the UE to send the first message, the UE actively sends the first message to the network-side device.

[0169] In this embodiment, the UE periodically sends first information, and the network-side device can know the UE's need for second information in real time or periodically, thereby optimizing resource allocation or triggering subsequent operations.

[0170] In some examples, the UE sends the first information to the network-side device when the conditions for sending the first information are met. Exemplarily, the conditions for sending the first information can be configured by the network-side device, pre-configured, or predefined by the protocol.

[0171] It should be noted that the above-mentioned first condition includes at least one condition that the UE needs to meet to send the first information to the network-side device, covering at least one specific situation in which the first information can be sent (such as UE request, cell service status, network command, periodic trigger, etc.) to ensure that the first information is sent at the appropriate time; the above-mentioned first information sending condition can be a specific condition configured or indicated by the network-side device to trigger the sending of the first information.

[0172] In some embodiments of this application, the fourth information described above is at least one of the following:

[0173] DCI;

[0174] Proprietary RRC messages;

[0175] System information;

[0176] SMS;

[0177] Paging messages;

[0178] New definition of signaling;

[0179] Existing signaling.

[0180] In some examples, the DCI mentioned above can be a DCI used to send paging messages or short messages.

[0181] In some examples, the proprietary RRC message can be at least one of the following: RRCRelease, RRCReconfiguration, or RRCResume.

[0182] In some examples, the above system information can be a broadcast RRC message, such as MIB, SIB1, or OSI.

[0183] It should be noted that the newly defined signaling mentioned above refers to signaling that is designed to meet specific functional requirements, such as newly defined signaling that triggers the UE to send first information indicating the need for second information. It is a completely new signaling protocol or an extension of existing signaling. Existing signaling refers to signaling that has been defined in traditional communication standards (such as 5G).

[0184] In some embodiments of this application, the fourth information described above includes at least one of the following:

[0185] The second field is used to indicate the sending of the first information to the network-side device;

[0186] Resource information, which indicates the resources used by the UE to send the first information;

[0187] The content of the first information;

[0188] The conditions for sending the first message.

[0189] In some examples, the fourth information may include at least one of the following: the resources used by the UE to send the first information, the content of the first information, and the conditions for sending the first information. For example, the conditions for sending the first information may include at least one of the following: the UE starts timing after receiving the fourth information, and sends the first information after the time exceeds one timer; the UE sends the first information every T1 time interval after camping on the first cell; the UE sends the first information every T2 time interval after receiving the fourth information.

[0190] In some embodiments of this application, the target of the second domain includes at least one of the following:

[0191] All UEs within the first cell;

[0192] At least some of the non-connected UEs in the first cell.

[0193] The indication method for the target of the first domain mentioned above is either explicit or implicit.

[0194] In some examples, taking the fourth information as the Paging message as an example, the network-side device does not indicate in the Paging message that the first field applies to all UEs in the first cell, or to all non-connected UEs in the first cell.

[0195] In some examples, taking the Paging message as the fourth piece of information, the network-side device explicitly indicates in the Paging message that the target of the first field is a group of UEs, which can be the UE's packet information or a random number. Specifically, the UEs in the first cell randomly select a number. If the selected number is greater than and / or equal to the random number, then the UE is the target of the first field or not. For example, the UE packet information indicated in the Physical Equipment Identity (PEI) or Low Power Wake-Up Signal (LP-WUS) is the target of the first field.

[0196] It should be noted that UEs in the first cell can determine their own packet information based on formulas or network allocation.

[0197] In some embodiments of this application, the aforementioned fourth information corresponds to at least one UE within the first cell; the location where a UE listens to the fourth information is a public location or a location related to a UE.

[0198] In some examples, the location where a UE in the first cell listens for fourth information (such as paging messages or short messages) can be a public location (such as a common PO) or a location related to the UE.

[0199] It should be noted that different UEs can listen in different locations.

[0200] This application provides a cell state determination method, which may include the following step 203:

[0201] Step 203: The UE determines the state of the first cell.

[0202] The state of the first community includes one of the following: state four, state five, and state six.

[0203] In some embodiments of this application, step 203 may be performed before step 201, after step 201, or simultaneously with step 201.

[0204] In some embodiments of this application, the fourth state described above includes at least one of the following:

[0205] The fifth message does not require a request to be sent;

[0206] The network-side device sends the fifth message;

[0207] Non-energy-saving state;

[0208] The value of Kssb corresponds to the Synchronization System Information Block (CD-SSB) defined in the cell.

[0209] In some embodiments of this application, the fifth state includes at least one of the following:

[0210] The transmission of the fifth message requires a UE request;

[0211] The network-side device did not send the fifth message;

[0212] Energy saving status;

[0213] The value of Kssb corresponds to the non-cell-defined Synchronization System Information Block (NCD-SSB);

[0214] In some embodiments of this application, the sixth state includes at least one of the following:

[0215] The network-side device may temporarily send the fifth message, or temporarily send the fifth message within a certain period of time, or temporarily send the fifth message within a window, or temporarily send the fifth message within a timer.

[0216] The value of Kssb corresponds to NCD-SSB or CD-SSB.

[0217] In some embodiments of this application, the fourth state described above is a non-energy-saving state in which the cell continuously transmits SIB1 (without request) and CD-SSB.

[0218] In some embodiments of this application, the fifth state is an energy-saving state in which the cell does not send SIB1 (required) or NCD-SSB, that is, the transmission of the fifth information needs to be based on a UE request.

[0219] In some embodiments of this application, the sixth state described above is another energy-saving state (temporary energy-saving state). In this state, the cell temporarily sends SIB1 (may or may not require a request) or sends SIB1 within a specific time period (window). Subsequently, the UE can perform corresponding actions according to the state, i.e., directly receive SIB1, send a request, or receive SIB1 within the window.

[0220] In some embodiments of this application, the value of Kssb corresponds to a non-cell defined synchronization system information block (NonCell Defining SSB, NCD-SSB).

[0221] In some embodiments of this application, the value of Kssb corresponds to the CellDefining SSB (CD-SSB).

[0222] It should be noted that the value of Kssb corresponding to NCD-SSB means: K_SSB>23 for FR1 and K_SSB>11 for FR2; similarly, the value of Kssb corresponding to NCD-SSB means: K_SSB<=23 for FR1 and K_SSB<=11 for FR2.

[0223] It should be noted that Kssb refers to the frequency domain offset between the SSB and the overall resource block grid, expressed in units of subcarriers. It represents the frequency domain offset of the SSB's starting position relative to the overall resource block grid, with units of subcarriers. Kssb is used to determine the specific position of the SSB (such as CD-SSB or NCD-SSB) in the frequency domain to ensure that the SSB signal can be correctly mapped onto the resource block grid.

[0224] In some embodiments of this application, the fifth information mentioned above is at least one of SSB and SIB1.

[0225] It should be noted that the fifth piece of information can also be other downlink information, which can be determined according to actual needs. This application does not limit this.

[0226] In some embodiments of this application, the first cell described above may be a cell in a specific frequency band.

[0227] In some embodiments of this application, the UE can determine the state of the first cell based on network-side device configuration, network-side device indication, or protocol predefined information.

[0228] In some embodiments of this application, the cell state determination method or communication method provided in this application may further include at least one of the following:

[0229] a. When the state of the first cell changes from the first state to the second state, the UE believes that the network-side device will send a short message;

[0230] b. If the state of the first cell changes from the first state to the second state, the UE believes that the network-side device will not send short messages.

[0231] c. When the state of the first cell changes from the first state to the third state, the UE believes that the network-side device will send a short message.

[0232] d. If the state of the first cell changes from the first state to the third state, the UE believes that the network-side device will not send short messages;

[0233] e. When the state of the first cell changes from the second state to the first state, the UE believes that the network-side device will send a short message.

[0234] f. If the state of the first cell changes from the second state to the first state, the UE believes that the network-side device will not send short messages.

[0235] g. When the state of the first cell changes from the third state to the first state, the UE believes that the network-side device will send a short message;

[0236] h. When the state of the first cell changes from the third state to the first state, the UE believes that the network-side device will not send short messages.

[0237] i. When the state of the first cell changes from the second state to the third state, the UE believes that the network-side device will send a short message;

[0238] j. If the state of the first cell changes from the second state to the third state, the UE believes that the network-side device will not send short messages.

[0239] k. When the state of the first cell changes from the third state to the second state, the UE believes that the network-side device will send a short message.

[0240] 1. When the state of the first cell changes from the third state to the second state, the UE believes that the network-side device will not send short messages.

[0241] In some examples, when the first cell changes from the fourth state to the fifth state (e.g., from a non-energy-saving state to an energy-saving state), the UE assumes that the network side will send a short message, or the UE assumes that the network side will not send a short message.

[0242] In some examples, when the first cell changes from state 5 to state 4, the UE assumes that the network will send a short message, or the UE assumes that the network will not send a short message.

[0243] It should be noted that when the state of the first cell changes from state four to state six, there are two rules: Rule 1: the UE believes the network device will send a short message; Rule 2: the UE believes the network device will not send a short message. In practice, only one rule may be in effect. That is, under the same state change direction, the UE can choose one judgment rule to avoid behavioral conflicts. For example, when the state changes from state four to state six, rule 1 may be activated, or rule 1 may be activated while rule 2 is ineffective. Similarly, the same logic applies to other state changes of the first cell.

[0244] In some embodiments of this application, the aforementioned short message may include several reserved bits of the short message or a system information change notification.

[0245] In some embodiments of this application, the aforementioned short message is used to notify or indicate that the cell status has been updated.

[0246] It should be noted that, in this embodiment of the application, by stipulating that in the state switching scenario of the first cell, the UE will assume or expect that the network-side device will send a short message to notify that the cell state has been updated.

[0247] In some examples, when a cell changes from a non-energy-saving state to an energy-saving state (from the first state to the second state), the UE assumes that the network-side device will send a short message to indicate the state change, and can therefore listen to the short message to know the cell's state; or, when a cell changes from a non-energy-saving state to an energy-saving state, the UE assumes that the network-side device will send a short message to indicate the state change, thereby reducing unnecessary listening.

[0248] In some examples, when a cell switches from a non-energy-saving state to a state that temporarily sends SIB1 (changes from the first state to the third state), the UE assumes that the network-side device will send a short message to indicate the state change, and can therefore listen to the short message to know the cell's state. Alternatively, when a cell switches from a non-energy-saving state to an energy-saving state, the UE assumes that the network-side device will not send a short message to indicate the state change, thereby reducing unnecessary listening.

[0249] In this embodiment of the application, by defining three cell states and their change rules, the UE can anticipate whether the network-side device will send a short message to indicate a state change, enabling the UE to reasonably assume the behavior of the network-side device based on the cell state change, thereby improving the stability and reliability of communication.

[0250] Furthermore, the 3GPP Rel-19 network power saving standardization project introduced a Radio Resource Control (RRC) random access resource adaptation mechanism for idle / inactive / connected states. Specifically, in this mechanism, the network side can configure additional random access resources (Additional RACH) in SIB1 and send an activation command for the Additional RACH resource to the terminal (UE) via a short message. Further, SIB1 may also indicate the following two additional pieces of information for Additional RACH resources:

[0251] -Additional RACH resource activation / deactivation status;

[0252] - The validity period or effective period of an Additional RACH resource once it is activated (for example, if an Additional RACH resource is activated in the Xth system information modification cycle, then the Additional RACH resource will be valid for the next N system information modification cycles).

[0253] In related technologies, it is unclear whether the terminal needs to be notified when the activation / deactivation status indication information of the Additional RACH resource in SIB1 changes.

[0254] To address this issue, in one embodiment, when the activation / deactivation status indication information of the Additional RACH resource in SIB1 changes, the network-side device does not notify the terminal system of the information change. This is because when the activation / deactivation status indication information of the Additional RACH resource in SIB1 changes from "deactivated" to "activated," the network side itself sends a short message to indicate that the Additional RACH resource has been activated. If the short message also notifies the system of the information change, the terminal would need to read SIB1, and the terminal might only obtain the information that the Additional RACH resource is activated from the newly acquired SIB1. Obviously, this behavior leads to an unnecessary increase in terminal power consumption. Furthermore, when the activation / deactivation status indication information of the Additional RACH resource in SIB1 changes from "activated" to "deactivated", this often occurs when a previously activated Additional RACH resource is deactivated after its expiration date. This status change is known to terminals that have previously received the activation command for the Additional RACH resource. Therefore, the network side does not need to notify the terminal of the system information change for this change. Otherwise, the terminal would have to read SIB1 again, resulting in unnecessary power consumption.

[0255] Furthermore, the 3GPP Rel-19 network energy efficiency standardization project introduced an on-demand SIB1 request mechanism for RRC idle / inactive states. In this mechanism, after a terminal sends an SIB1 request to an NES cell (such as the first cell), the NES cell can respond by sending an SIB1. When the NES cell periodically broadcasts SIB1 normally, the Kssb parameter in the SSB is set to the corresponding CD-SSB; when the NES cell is in on-demand SIB1 request mode, the Kssb parameter in the SSB is set to the corresponding NCD-SSB.

[0256] In related technologies, it is unclear whether the terminal will be notified when the Kssb in the SSB changes from being set to the corresponding NCD-SSB to being set to the corresponding CD-SSB.

[0257] To address this issue, in one embodiment, when the Kssb in the SSB changes from NCD-SSB to CD-SSB, the network-side device does not notify the terminal of the system information change. For example, for an NES cell (such as the first cell), when the Kssb value of the SSB in the NES cell changes from NCD-SSB to CD-SSB, the network-side device will not proactively send a notification to the terminal informing it of the system information change. This is because even if the terminal is unaware of this change, it can still camp normally. When the terminal needs to obtain the SIB1 of the current cell, it will proactively read the Kssb of the SSB to determine the transmission status of SIB1 and decide whether to send an SIB1 request. Therefore, this change does not require notification of the terminal's system information change, thereby reducing the terminal's power consumption. Conversely, notifying the terminal of the system information change would cause the terminal to read the MIB and SIB1, resulting in increased terminal power consumption.

[0258] Figure 4 A flowchart illustrating the communication method provided in the embodiments of this application is shown below. Figure 4 As shown, the communication method may include the following step 301:

[0259] Step 301: The network-side device performs at least one of the following:

[0260] Change the status of the first cell from the first status to the second or third status;

[0261] A fourth message is sent to the UE, which triggers the UE to send a first message, which indicates the UE's need for a second message.

[0262] In some embodiments of this application, the UE may receive fourth information from network-side devices.

[0263] In some embodiments of this application, the first state described above includes at least one of the following:

[0264] The transmission of the second message does not require a request from the UE;

[0265] The network-side device sends the second information;

[0266] The second information may be sent within the first time period, the timer's timing period, or the first window, or the second information may be sent temporarily.

[0267] Non-energy-saving state;

[0268] The network-side device does not listen for requests sent by the UE regarding the second information;

[0269] In some embodiments of this application, the second state described above includes at least one of the following:

[0270] The transmission of the second message requires a UE request;

[0271] The network-side device listens for requests sent by the UE regarding the second information;

[0272] The network-side device did not send a second message;

[0273] The network-side device failed to send the second information within the first time period, the timer's timing period, or the first window, or failed to send the second information temporarily.

[0274] Energy saving status;

[0275] In some embodiments of this application, the aforementioned third state includes at least one of the following:

[0276] The network-side equipment does not listen for requests for the second information sent by the UE;

[0277] The network-side device did not send a second message;

[0278] Energy saving status.

[0279] It should be noted that the explanation of step 301 can be found in the relevant description of the above UE-side method embodiment, and will not be repeated here to avoid repetition.

[0280] The communication method provided in this application embodiment involves the network-side device performing at least one of the following: changing the state of a first cell from a first state to a second state or a third state; sending fourth information to the UE, wherein the fourth information is used to trigger the UE to send first information, and the first information is used to indicate the UE's request for second information. Through this scheme, by changing the cell state from the first state to the second or third state, reasonable cell state switching helps optimize the utilization of network resources, enabling the network-side device to dynamically adjust resource allocation to ensure stable communication services for users, thereby improving communication performance.

[0281] In some embodiments of this application, the network-side device can send indication information to the UE when the state of the first cell changes. This indication information is used to indicate the state change of the first cell. Exemplarily, the communication method provided in this application embodiment may further include the following step 302:

[0282] Step 302: The network-side device sends the first indication information to the UE.

[0283] The aforementioned first indication information is used to indicate that the first cell changes from the first state to the second state or the third state.

[0284] In some embodiments of this application, the aforementioned first indication information is carried by third information; the aforementioned third information includes at least one of the following:

[0285] Dedicated signaling;

[0286] System information;

[0287] Paging messages;

[0288] SMS;

[0289] Downlink Control Information (DCI) corresponding to the paging message;

[0290] Downlink control information (DCI) corresponding to short messages.

[0291] In some embodiments of this application, the network-side device may send indication information to the UE, indicating that the state of the first cell changes from the second state to the first state or the third state.

[0292] In some embodiments of this application, the network-side device may send indication information to the UE, indicating that the state of the first cell changes from the third state to the first state or the second state.

[0293] It should be noted that step 302 can be performed before step 301, after step 301, or simultaneously with step 301.

[0294] In some embodiments of this application, the aforementioned third information includes a first field, which is a specific field reserved for the first indication information in the third information, or a related field in the third information that is allowed to be reused;

[0295] The first field contains one bit, which is used to indicate whether the first cell is in an energy-saving state or a non-energy-saving state; or, the first field contains N bits, which indicate that the first cell is in a target state, which is one of the first state, the second state, and the third state, where N is an integer greater than 1.

[0296] In some embodiments of this application, the communication method provided in this application may further include the following step 303:

[0297] Step 303: The network-side device determines, based on the sixth information, whether to change the state of the first cell from the first state to the second or third state.

[0298] The sixth piece of information includes at least one of the following:

[0299] Implementation of network-side devices;

[0300] The reselection priority of the frequency corresponding to the first cell;

[0301] The first information is used to indicate the UE's need for the second information.

[0302] In some embodiments of this application, the second information mentioned above includes at least one of the following: synchronization signal block SSB, system information block type 1 SIB1.

[0303] In some examples, the method by which the first cell determines whether to transition from the first state to the second or third state can be at least one of the following:

[0304] The network-side devices decide for themselves whether to transition from the first state to the second or third state, for example, through network implementation or internal network algorithms.

[0305] The priority is determined based on the reselection priority of the frequency corresponding to the first cell;

[0306] It is determined based on the UE's requirement for the second information.

[0307] In some examples, if the reselection priority of the frequency corresponding to the first cell is lower than or equal to the reselection priority of the frequency corresponding to the neighboring cell, that is, the reselection priority of the frequency corresponding to the first cell is not higher than the reselection priority of any neighboring cell, then the network-side device will change the first cell from the first state to the second state or the third state; or, if the reselection priority of the frequency corresponding to the first cell is higher than the reselection priority of the frequency corresponding to the neighboring cell, then the network-side device will not change the first cell from the first state to the second state or the third state, that is, it will remain in the first state.

[0308] In some examples, the network-side device determines whether to transition the first cell from the first state to the second or third state based on the UE's need for the second information.

[0309] In some embodiments of this application, the network-side device determines whether to change the first cell from the first state to the second or third state based on the UE's demand for the second information. This can be because: the UE's demand for the second information is auxiliary information, meaning the network-side device only uses the UE's demand as a reference, and the network-side device decides whether to change it; or the UE's demand for the first information is decisive information, meaning that different states of this information directly affect the behavior of the network-side device. For example, if the number of UEs that demand the second information is greater than or equal to M (M is an integer greater than or equal to 1), the network-side device does not change the state, that is, it remains in the first state.

[0310] It should be noted that step 303 can be performed before step 301.

[0311] In this embodiment, the network-side device can determine whether to adjust the state of the first cell (i.e., change the first state to the second / third state) based on at least one of its own implementation, the reselection priority of the frequency corresponding to the first cell, and the UE's need for the second information, thereby improving the flexibility and efficiency of network resource allocation.

[0312] It should be noted that for an explanation of the network-side device-side method, please refer to the relevant description of the UE-side method embodiment. To avoid repetition, it will not be repeated here.

[0313] This application provides a method for changing the state of a cell, which may include the following step 304:

[0314] Step 304: The network-side device changes the status of the first cell.

[0315] The first community mentioned above is in one of the following states: fourth state, fifth state, or sixth state.

[0316] In some embodiments of this application, step 304 may be performed before step 301, after step 301, or simultaneously with step 301.

[0317] In some embodiments of this application, step 304 may include one of steps 304a to 304c:

[0318] Step 304a: The network-side device changes the status of the first cell from the fourth state to the fifth or sixth state.

[0319] Step 304b: The network-side device changes the status of the first cell from the fifth state to the fourth or sixth state;

[0320] Step 304c: The network-side device changes the state of the first cell from the sixth state to the fourth or fifth state.

[0321] In some embodiments of this application, the fourth state described above includes at least one of the following:

[0322] The transmission of the fifth message does not require a UE request;

[0323] The network-side device sends the sixth message;

[0324] Non-energy-saving state;

[0325] The value of Kssb corresponds to CD-SSB;

[0326] In some embodiments of this application, the fifth state described above includes at least one of the following:

[0327] The sixth message needs to be sent based on a UE request;

[0328] The network-side device did not send the sixth message;

[0329] Energy saving status;

[0330] The value of Kssb corresponds to NCD-SSB;

[0331] In some embodiments of this application, the sixth state described above includes at least one of the following:

[0332] The network-side device may temporarily send the sixth message, or temporarily send the sixth message within a certain period of time, or temporarily send the sixth message within a window, or temporarily send the sixth message within a timer.

[0333] The value of Kssb corresponds to NCD-SSB or CD-SSB.

[0334] In some embodiments of this application, the cell state change method or communication method provided in this application may further include at least one of the following:

[0335] When the status of the first cell changes from the fourth state to the fifth state, the network-side device will send a short message;

[0336] When the status of the first cell changes from the fourth state to the fifth state, the network-side device will not send short messages;

[0337] When the status of the first cell changes from the fourth state to the sixth state, the network-side device will send a short message;

[0338] When the status of the first cell changes from the fourth state to the sixth state, the network-side device will not send short messages;

[0339] When the status of the first cell changes from the fifth state to the fourth state, the network-side device will send a short message;

[0340] When the status of the first cell changes from the fifth state to the fourth state, the network-side device will not send short messages;

[0341] When the status of the first cell changes from the sixth state to the fourth state, the network-side device will send a short message;

[0342] When the status of the first cell changes from the sixth state to the fourth state, the network-side device will not send short messages;

[0343] When the status of the first cell changes from the fifth state to the sixth state, the network-side device will send a short message;

[0344] When the status of the first cell changes from the fifth state to the sixth state, the network-side device will not send short messages;

[0345] When the status of the first cell changes from the sixth state to the fifth state, the network-side device will send a short message;

[0346] When the status of the first cell changes from the sixth state to the fifth state, the network-side device will not send short messages.

[0347] In some embodiments of this application, in each state change scenario, the network-side device decides whether to send a short message based on the new state of the cell.

[0348] In some examples, when a cell changes from a non-energy-saving state to an energy-saving state (from the fourth state to the fifth state), the network-side device will send a short message to indicate the state change, and the UE can listen to the short message to know the cell's state; or, when a cell changes from a non-energy-saving state to an energy-saving state, the network-side device will not send a short message to indicate the state change, and the UE can determine the cell's state on its own.

[0349] In some examples, when a cell switches from a non-energy-saving state to a state that temporarily sends SIB1 (changes from the fourth state to the sixth state), the network-side equipment will send a short message to indicate the state change, and the UE can listen to the short message to know the cell's state; or, when a cell switches from a non-energy-saving state to an energy-saving state, the network-side equipment will not send a short message to indicate the state change, and the UE can determine the cell's state on its own.

[0350] In some examples, when the first cell changes from state 5 to state 4, the UE assumes that the network will send a short message, or the UE assumes that the network will not send a short message.

[0351] It should be noted that when the state of the first cell changes from state four to state six, there are two rules: Rule 1: the network-side device will send a short message; Rule 2: the network-side device will not send a short message. In practical applications, only one rule may be in effect. That is, under the same state change direction, the network-side device can choose one judgment rule to avoid behavioral conflicts. For example, when the state changes from state four to state six, rule 1 may be activated, or rule 1 may be activated and rule 2 may be deactivated. Similarly, the same logic applies to other state changes of the first cell.

[0352] In this embodiment of the application, by defining three cell states and their change rules, the network-side device can reasonably decide whether to send a short message based on the cell state change. The UE can reasonably assume the behavior of the network-side device based on the cell state change, avoid unnecessary requests or waiting, thereby improving the reliability and stability of communication.

[0353] It should be noted that for an explanation of the network-side device-side method, please refer to the relevant description of the UE-side method embodiment. To avoid repetition, it will not be repeated here.

[0354] like Figure 5 As shown in the embodiment of this application, another communication method is provided, which may include the following steps:

[0355] Step 401: The network-side device changes the status of the first cell from the first status to the second or third status.

[0356] Step 402: The network-side device sends the first indication information to the UE.

[0357] The aforementioned first indication information is used to indicate that the first cell changes from a first state to a second state or a third state.

[0358] Step 403: The UE receives the first indication information from the network-side device.

[0359] Step 404: The UE determines whether the state of the first cell has changed from the first state to the second state or the third state based on the first indication information.

[0360] It should be noted that the explanation of this embodiment can be found in the relevant descriptions of the UE-side method embodiment and the network-side device-side method embodiment described above. To avoid repetition, it will not be repeated here.

[0361] like Figure 6 As shown in the embodiment of this application, another communication method is provided, which may include the following steps:

[0362] Step 501: The network-side device sends the fourth information to the UE.

[0363] The aforementioned fourth information is used to trigger the UE to send the first information, which indicates the UE's need for the second information.

[0364] Step 502: The UE receives the fourth information from the network-side device.

[0365] Step 503: The UE sends the first information to the network side device of the first cell.

[0366] It should be noted that the explanation of this embodiment can be found in the relevant descriptions of the UE-side method embodiment and the network-side device-side method embodiment described above. To avoid repetition, it will not be repeated here.

[0367] In this embodiment, the first cell can dynamically decide on state changes, such as switching the SSB transmission mode from periodic transmission to on-demand transmission or no transmission mode, thereby reducing power consumption. After the state change, the first cell can notify the UE through broadcast messages (such as SIB or dedicated RRC signaling) or implicit behavior to ensure that the UE can promptly perceive the mode change and adjust the synchronization strategy, such as triggering SSB transmission on demand or switching to neighboring cell synchronization. In this way, while ensuring communication performance, the power consumption of the base station and the UE can be reduced, and the utilization rate of resources can be improved.

[0368] The communication method provided in this application can be executed by a communication device. This application uses the example of a communication device executing the communication method to illustrate the communication device provided in this application.

[0369] This application provides a communication device. As an example, the communication device may be a communication equipment or a component within a communication equipment, such as a chip. The communication equipment may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0370] The communication device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0371] For details, see Figure 7When the communication device is a terminal or a component in a terminal, the communication device 600 includes a processing module 601, which is configured to perform at least one of the following when the user equipment UE is camped in the first cell: determine whether the state of the first cell has changed from a first state to a second state or a third state; and send first information to the network-side equipment of the first cell, the first information being used to indicate the UE's request for second information.

[0372] In some embodiments of this application, the above-mentioned processing module is specifically used to: receive first indication information from a network-side device; determine, based on the first indication information, whether the state of the first cell has changed from a first state to a second state or a third state; wherein, the first indication information is used to indicate that the first cell has changed from a first state to a second state or a third state.

[0373] In some embodiments of this application, the aforementioned first indication information is carried by third information; the third information includes at least one of the following:

[0374] Dedicated signaling;

[0375] System information;

[0376] Paging messages;

[0377] SMS;

[0378] Downlink Control Information (DCI) corresponding to the paging message;

[0379] Downlink control information (DCI) corresponding to short messages.

[0380] In some embodiments of this application, the aforementioned third information includes a first field, which is a specific field reserved for the first indication information in the third information, or a related field that is allowed to be reused in the third information; the first field contains one bit, which is used to indicate whether the first cell is in an energy-saving state or a non-energy-saving state; or, the first field contains N bits, which indicate that the first cell is in a target state, where the target state is one of the first state, the second state, and the third state, and N is an integer greater than 1.

[0381] In some embodiments of this application, the above-described processing module is specifically used to perform at least one of the following:

[0382] If the UE fails to detect the second information of the first cell N times consecutively, or within a preset time period, or after the timer expires, it is determined that the first cell has changed from the first state to the second state or the third state.

[0383] If the UE fails to detect the second information of the first cell N times consecutively, or within a preset time period, or after the timer expires, and / or the UE does not have a stored first configuration or does not have a valid first configuration, it is determined that the first cell has changed from the first state to the second state; the first configuration is a configuration used to request the first cell to send the second information.

[0384] If the UE fails to detect the second information of the first cell for N consecutive times, or within a preset time period, or after the timer expires, and / or the UE does not have a stored first configuration or does not have a valid first configuration, it is determined that the first cell changes from the first state to the third state.

[0385] If the UE fails to detect the second information of the first cell N times consecutively, or within a preset time period, or after the timer expires, and / or, the UE has a stored first configuration or a valid first configuration, and / or, the UE does not receive a random access response (RAR) after requesting the first cell to send the second information through the first configuration, and / or, the UE does not receive the second information after receiving the random access response (RAR) after requesting the first cell to send the second information through the first configuration, the first cell is determined to change from the first state to the second state or the third state.

[0386] In some embodiments of this application, the above-described processing module is specifically used for:

[0387] If the first condition is met, send the first information to the network-side device;

[0388] The first condition includes at least one of the following:

[0389] The UE needs the second information of the first cell;

[0390] The first cell is the UE's serving cell or camped cell;

[0391] The UE receives a fourth message from the network-side device, which is used to trigger the UE to send the first message.

[0392] After the UE camps in the first cell, it reaches the first time point, which is the time point at which the first information is sent every second time interval;

[0393] After the UE receives the fourth message, it reaches the second time point, which is the time point at which the first message is sent every third time interval;

[0394] The conditions for sending the first message.

[0395] In some embodiments of this application, the fourth information described above is at least one of the following:

[0396] Downlink Control Information (DCI);

[0397] Proprietary Radio Resource Control (RRC) messages;

[0398] System information;

[0399] SMS;

[0400] Paging messages;

[0401] New definition of signaling;

[0402] Existing signaling.

[0403] In some embodiments of this application, the fourth information described above includes at least one of the following:

[0404] The second field is used to indicate the sending of the first information to the network-side device;

[0405] Resource information indicates the resources used by the UE to send the first information;

[0406] The content of the first information;

[0407] The conditions for sending the first message.

[0408] In some embodiments of this application, the target of the second domain includes at least one of the following:

[0409] All UEs within the first cell;

[0410] At least some of the non-connected UEs in the first cell.

[0411] The first domain can be indicated by either explicit or implicit methods.

[0412] In some embodiments of this application, the first information mentioned above includes at least one of the following:

[0413] Dedicated preamble;

[0414] Random access message 3Msg 3;

[0415] Random Access Message A Msg A Uplink Physical Shared Channel (PUSCH);

[0416] RRC message;

[0417] Media Access Control - Control Unit (MAC CE);

[0418] Information sent by RO at the time of target random access;

[0419] Information transmitted through the target logical channel.

[0420] In some embodiments of this application, the aforementioned dedicated preamble indicates the UE's need for second information.

[0421] In some embodiments of this application, the first information indicates that the UE needs the second information; or the first information is used to indicate whether the UE needs the second information.

[0422] In some embodiments of this application, the second information mentioned above includes at least one of the following: synchronization signal block SSB, system information block type 1 SIB1.

[0423] In some embodiments of this application, the first state described above includes at least one of the following:

[0424] The transmission of the second message does not require a request from the UE;

[0425] The network-side device sends a second message;

[0426] The network-side device sends the second information within the first time period, the timer's timing period, or the first window, or sends the second information temporarily.

[0427] Non-energy-saving state;

[0428] The network-side equipment does not listen for requests for the second information sent by the UE;

[0429] The second state includes at least one of the following:

[0430] The transmission of the second message requires a UE request;

[0431] The network-side equipment listens for requests for the second information sent by the UE;

[0432] The network-side device did not send a second message;

[0433] The network-side device failed to send the second information within the first time period, the timer's timing period, or the first window, or failed to send the second information temporarily.

[0434] Energy saving status;

[0435] The third state includes at least one of the following:

[0436] The network-side equipment does not listen for requests for the second information sent by the UE;

[0437] The network-side device did not send a second message;

[0438] Energy saving status.

[0439] In some embodiments of this application, the above-described processing module is further configured to: determine the state of the first cell;

[0440] The state of the first community includes one of the following: state four, state five, and state six.

[0441] In some embodiments of this application, the fourth state described above includes at least one of the following:

[0442] The fifth message does not require a request to be sent;

[0443] The network-side device sends the fifth message;

[0444] Non-energy-saving state;

[0445] The value of Kssb corresponds to the Synchronization System Information Block (CD-SSB) defined in the cell.

[0446] The fifth state includes at least one of the following:

[0447] The transmission of the fifth message requires a UE request;

[0448] The network-side device did not send the fifth message;

[0449] Energy saving status;

[0450] The value of Kssb corresponds to the non-cell-defined Synchronization System Information Block (NCD-SSB);

[0451] The sixth state includes at least one of the following:

[0452] The network-side device may temporarily send the fifth message, or temporarily send the fifth message within a certain period of time, or temporarily send the fifth message within a window, or temporarily send the fifth message within a timer.

[0453] The value of Kssb corresponds to NCD-SSB or CD-SSB.

[0454] In some embodiments of this application, when the state of the first cell changes from the fourth state to the fifth state, the UE believes that the network-side device will send a short message;

[0455] If the status of the first cell changes from the fourth state to the fifth state, the UE assumes that the network-side device will not send short messages.

[0456] When the state of the first cell changes from state four to state six, the UE assumes that the network-side device will send a short message.

[0457] If the status of the first cell changes from the fourth state to the sixth state, the UE assumes that the network-side device will not send short messages.

[0458] When the state of the first cell changes from state 5 to state 4, the UE assumes that the network-side device will send a short message.

[0459] If the status of the first cell changes from the fifth state to the fourth state, the UE assumes that the network-side device will not send short messages.

[0460] When the state of the first cell changes from state 6 to state 4, the UE assumes that the network-side device will send a short message.

[0461] If the status of the first cell changes from the sixth state to the fourth state, the UE assumes that the network-side device will not send short messages.

[0462] When the state of the first cell changes from state 5 to state 6, the UE assumes that the network-side device will send a short message.

[0463] If the status of the first cell changes from the fifth state to the sixth state, the UE assumes that the network-side device will not send short messages.

[0464] When the state of the first cell changes from state 6 to state 5, the UE assumes that the network-side device will send a short message.

[0465] If the status of the first cell changes from the sixth state to the fifth state, the UE assumes that the network-side device will not send short messages.

[0466] The communication device provided in this application embodiment, when the UE is camped in a first cell, performs at least one of the following: determining whether the state of the first cell has changed from a first state to a second state or a third state; and sending first information to the network-side equipment of the first cell, the first information indicating the UE's need for second information. Through this solution, when the UE's camped cell changes from a first state to a second or third state, the communication device can determine the state change of the camped cell, and can promptly obtain information about the change in the camped cell state, thereby executing corresponding communication strategies. And / or, the communication device can send information indicating the UE's need for second information to the network-side equipment, enabling the network-side equipment to make reasonable decisions based on the communication device's need for second information. Thus, an energy-saving collaborative mechanism with the network-side equipment is realized, thereby improving communication performance.

[0467] See Figure 8 When the communication device is a network-side device or a component of a network-side device, the communication device 700 includes a processing module 701, which is configured to perform at least one of the following: change the state of the first cell from a first state to a second state or a third state; send fourth information to the user equipment (UE), the fourth information being used to trigger the UE to send first information, and the first information being used to indicate the UE's request for second information.

[0468] In some embodiments of this application, the above-mentioned apparatus further includes: a sending module; the sending module is used to send first indication information to the UE; wherein the first indication information is used to indicate that the first cell changes from a first state to a second state or a third state.

[0469] In some embodiments of this application, the aforementioned first indication information is carried by third information; the third information includes at least one of the following:

[0470] Dedicated signaling;

[0471] System information;

[0472] Paging messages;

[0473] SMS;

[0474] Downlink Control Information (DCI) corresponding to the paging message;

[0475] Downlink control information (DCI) corresponding to short messages.

[0476] In some embodiments of this application, the aforementioned third information includes a first field, which is a specific field reserved for the first indication information in the third information, or a related field that is allowed to be reused in the third information; the first field contains one bit, which is used to indicate whether the first cell is in an energy-saving state or a non-energy-saving state; or, the first field contains N bits, which indicate that the first cell is in a target state, where the target state is one of the first state, the second state, and the third state, and N is an integer greater than 1.

[0477] In some embodiments of this application, the above-mentioned processing module is further configured to: determine, based on the sixth information, whether to change the state of the first cell from the first state to the second state or the third state;

[0478] The sixth piece of information includes at least one of the following:

[0479] Implementation of network-side devices;

[0480] The reselection priority of the frequency corresponding to the first cell;

[0481] The first information is used to indicate the UE's need for the second information.

[0482] In some embodiments of this application, the second information mentioned above includes at least one of the following: synchronization signal block SSB, system information block type 1 SIB1.

[0483] In some embodiments of this application, the first state described above includes at least one of the following:

[0484] The transmission of the second message does not require a request from the UE;

[0485] The network-side device sends a second message;

[0486] The network-side device sends the second information within the first time period, the timer's timing period, or the first window, or sends the second information temporarily.

[0487] Non-energy-saving state;

[0488] The network-side equipment does not listen for requests for the second information sent by the UE;

[0489] The second state includes at least one of the following:

[0490] The transmission of the second message requires a UE request;

[0491] The network-side equipment listens for requests for the second information sent by the UE;

[0492] The network-side device did not send a second message;

[0493] The network-side device failed to send the second information within the first time period, the timer's timing period, or the first window, or failed to send the second information temporarily.

[0494] Energy saving status;

[0495] The third state includes at least one of the following:

[0496] The network-side equipment does not listen for requests for the second information sent by the UE;

[0497] The network-side device did not send a second message;

[0498] Energy saving status.

[0499] In some embodiments of this application, the above-described processing module is further configured to change the state of the first cell, wherein the state of the first cell is one of the following: fourth state, fifth state, or sixth state.

[0500] In some embodiments of this application, the above-described processing module is specifically used to perform one of the following:

[0501] Change the status of the first cell from the fourth state to the fifth or sixth state;

[0502] Change the status of the first cell from the fifth status to the fourth or sixth status;

[0503] Change the status of the first cell from the sixth status to the fourth or fifth status.

[0504] In some embodiments of this application, the fourth state described above includes at least one of the following:

[0505] The transmission of the fifth message does not require a UE request;

[0506] The network-side device sends the sixth message;

[0507] Non-energy-saving state;

[0508] The value of Kssb corresponds to CD-SSB;

[0509] The fifth state includes at least one of the following:

[0510] The sixth message needs to be sent based on a UE request;

[0511] The network-side device did not send the sixth message;

[0512] Energy saving status;

[0513] The value of Kssb corresponds to NCD-SSB;

[0514] The sixth state includes at least one of the following:

[0515] The network-side device may temporarily send the sixth message, or temporarily send the sixth message within a certain period of time, or temporarily send the sixth message within a window, or temporarily send the sixth message within a timer.

[0516] The value of Kssb corresponds to NCD-SSB or CD-SSB.

[0517] In some embodiments of this application, when the state of the first cell changes from the fourth state to the fifth state, the network-side device will send a short message;

[0518] When the status of the first cell changes from the fourth state to the fifth state, the network-side device will not send short messages;

[0519] When the status of the first cell changes from the fourth state to the sixth state, the network-side device will send a short message;

[0520] When the status of the first cell changes from the fourth state to the sixth state, the network-side device will not send short messages;

[0521] When the status of the first cell changes from the fifth state to the fourth state, the network-side device will send a short message;

[0522] When the status of the first cell changes from the fifth state to the fourth state, the network-side device will not send short messages;

[0523] When the status of the first cell changes from the sixth state to the fourth state, the network-side device will send a short message;

[0524] When the status of the first cell changes from the sixth state to the fourth state, the network-side device will not send short messages;

[0525] When the status of the first cell changes from the fifth state to the sixth state, the network-side device will send a short message;

[0526] When the status of the first cell changes from the fifth state to the sixth state, the network-side device will not send short messages;

[0527] When the status of the first cell changes from the sixth state to the fifth state, the network-side device will send a short message;

[0528] When the status of the first cell changes from the sixth state to the fifth state, the network-side device will not send short messages.

[0529] The communication apparatus provided in this application embodiment performs at least one of the following: changing the state of a first cell from a first state to a second state or a third state; sending fourth information to a UE, the fourth information being used to trigger the UE to send first information, the first information being used to indicate the UE's request for second information. Through this scheme, by changing the cell state from the first state to the second or third state, reasonable cell state switching helps optimize the utilization of network resources, enabling network-side equipment to dynamically adjust resource allocation to ensure stable communication services for users, thereby improving communication performance.

[0530] The communication device provided in this application embodiment can implement the various processes implemented in the above communication method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0531] like Figure 9 As shown in the illustration, this application also provides a communication device 800, including a processor 801 and a memory 802. The memory 802 stores programs or instructions that can run on the processor 801. For example, when the communication device 800 is a terminal, the program or instructions executed by the processor 801 implement the various steps of the above-described communication method embodiments and achieve the same technical effect. When the communication device 800 is a network-side device, the program or instructions executed by the processor 801 implement the various steps of the above-described communication method embodiments and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0532] This application also provides a terminal (i.e., UE), including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the above-described UE-side method embodiments. This terminal embodiment corresponds to the above-described terminal-side method embodiments, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 7 The communication device shown. Specifically, Figure 10 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0533] The terminal 100 includes, but is not limited to, at least some of the following components: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, and processor 110.

[0534] Those skilled in the art will understand that the terminal 100 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 110 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 10 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0535] It should be understood that, in this embodiment, the input unit 104 may include a graphics processor 1041 and a microphone 1042. The graphics processor 1041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 107 includes at least one of a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0536] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 101 can transmit it to the processor 110 for processing; in addition, the radio frequency unit 101 can send uplink data to the network-side device. Typically, the radio frequency unit 101 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0537] The memory 109 can be used to store software programs or instructions, as well as various data. The memory 109 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 109 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 109 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0538] Processor 110 may include one or more processing units; optionally, processor 110 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 110.

[0539] The processor 110 is configured to perform at least one of the following when the user equipment (UE) is camped in the first cell: determine whether the state of the first cell has changed from a first state to a second state or a third state; and send first information to the network-side equipment of the first cell, wherein the first information is used to indicate the UE's request for second information.

[0540] In some embodiments of this application, the processor 110 is specifically configured to: receive first indication information from a network-side device; and determine, based on the first indication information, whether the state of the first cell has changed from a first state to a second state or a third state; wherein the first indication information is used to indicate that the first cell has changed from a first state to a second state or a third state.

[0541] In some embodiments of this application, the aforementioned first indication information is carried by third information; the third information includes at least one of the following:

[0542] Dedicated signaling;

[0543] System information;

[0544] Paging messages;

[0545] SMS;

[0546] Downlink Control Information (DCI) corresponding to the paging message;

[0547] Downlink control information (DCI) corresponding to short messages.

[0548] In some embodiments of this application, the aforementioned third information includes a first field, which is a specific field reserved for the first indication information in the third information, or a related field that is allowed to be reused in the third information; the first field contains one bit, which is used to indicate whether the first cell is in an energy-saving state or a non-energy-saving state; or, the first field contains N bits, which indicate that the first cell is in a target state, where the target state is one of the first state, the second state, and the third state, and N is an integer greater than 1.

[0549] In some embodiments of this application, the processor 110 described above is specifically configured to perform at least one of the following:

[0550] If the UE fails to detect the second information of the first cell N times consecutively, or within a preset time period, or after the timer expires, it is determined that the first cell has changed from the first state to the second state or the third state.

[0551] If the UE fails to detect the second information of the first cell N times consecutively, or within a preset time period, or after the timer expires, and / or the UE does not have a stored first configuration or does not have a valid first configuration, it is determined that the first cell has changed from the first state to the second state; the first configuration is a configuration used to request the first cell to send the second information.

[0552] If the UE fails to detect the second information of the first cell for N consecutive times, or within a preset time period, or after the timer expires, and / or the UE does not have a stored first configuration or does not have a valid first configuration, it is determined that the first cell changes from the first state to the third state.

[0553] If the UE fails to detect the second information of the first cell N times consecutively, or within a preset time period, or after the timer expires, and / or, the UE has a stored first configuration or a valid first configuration, and / or, the UE does not receive a random access response (RAR) after requesting the first cell to send the second information through the first configuration, and / or, the UE does not receive the second information after receiving the random access response (RAR) after requesting the first cell to send the second information through the first configuration, the first cell is determined to change from the first state to the second state or the third state.

[0554] In some embodiments of this application, the processor 110 described above is specifically used for:

[0555] If the first condition is met, send the first information to the network-side device;

[0556] The first condition includes at least one of the following:

[0557] The UE needs the second information of the first cell;

[0558] The first cell is the UE's serving cell or camped cell;

[0559] The UE receives a fourth message from the network-side device, which is used to trigger the UE to send the first message.

[0560] After the UE camps in the first cell, it reaches the first time point, which is the time point at which the first information is sent every second time interval;

[0561] After the UE receives the fourth message, it reaches the second time point, which is the time point at which the first message is sent every third time interval;

[0562] The conditions for sending the first message.

[0563] In some embodiments of this application, the fourth information described above is at least one of the following:

[0564] Downlink Control Information (DCI);

[0565] Proprietary Radio Resource Control (RRC) messages;

[0566] System information;

[0567] SMS;

[0568] Paging messages;

[0569] New definition of signaling;

[0570] Existing signaling.

[0571] In some embodiments of this application, the fourth information described above includes at least one of the following:

[0572] The second field is used to indicate the sending of the first information to the network-side device;

[0573] Resource information indicates the resources used by the UE to send the first information;

[0574] The content of the first information;

[0575] The conditions for sending the first message.

[0576] In some embodiments of this application, the target of the second domain includes at least one of the following:

[0577] All UEs within the first cell;

[0578] At least some of the non-connected UEs in the first cell.

[0579] The first domain can be indicated by either explicit or implicit methods.

[0580] In some embodiments of this application, the first information mentioned above includes at least one of the following:

[0581] Dedicated preamble;

[0582] Random access message 3Msg 3;

[0583] Random Access Message A Msg A Uplink Physical Shared Channel (PUSCH);

[0584] RRC message;

[0585] Media Access Control - Control Unit (MAC CE);

[0586] Information sent by RO at the time of target random access;

[0587] Information transmitted through the target logical channel.

[0588] In some embodiments of this application, the aforementioned dedicated preamble indicates the UE's need for second information.

[0589] In some embodiments of this application, the first information indicates that the UE needs the second information; or the first information is used to indicate whether the UE needs the second information.

[0590] In some embodiments of this application, the second information mentioned above includes at least one of the following: synchronization signal block SSB, system information block type 1 SIB1.

[0591] In some embodiments of this application, the first state described above includes at least one of the following:

[0592] The transmission of the second message does not require a request from the UE;

[0593] The network-side device sends a second message;

[0594] The network-side device sends the second information within the first time period, the timer's timing period, or the first window, or sends the second information temporarily.

[0595] Non-energy-saving state;

[0596] The network-side equipment does not listen for requests for the second information sent by the UE;

[0597] The second state includes at least one of the following:

[0598] The transmission of the second message requires a UE request;

[0599] The network-side equipment listens for requests for the second information sent by the UE;

[0600] The network-side device did not send a second message;

[0601] The network-side device failed to send the second information within the first time period, the timer's timing period, or the first window, or failed to send the second information temporarily.

[0602] Energy saving status;

[0603] The third state includes at least one of the following:

[0604] The network-side equipment does not listen for requests for the second information sent by the UE;

[0605] The network-side device did not send a second message;

[0606] Energy saving status.

[0607] In some embodiments of this application, the processor 110 is further configured to: determine the state of the first cell;

[0608] The state of the first community includes one of the following: state four, state five, and state six.

[0609] In some embodiments of this application, the fourth state described above includes at least one of the following:

[0610] The fifth message does not require a request to be sent;

[0611] The network-side device sends the fifth message;

[0612] Non-energy-saving state;

[0613] The value of Kssb corresponds to the Synchronization System Information Block (CD-SSB) defined in the cell.

[0614] The fifth state includes at least one of the following:

[0615] The transmission of the fifth message requires a UE request;

[0616] The network-side device did not send the fifth message;

[0617] Energy saving status;

[0618] The value of Kssb corresponds to the non-cell-defined Synchronization System Information Block (NCD-SSB);

[0619] The sixth state includes at least one of the following:

[0620] The network-side device may temporarily send the fifth message, or temporarily send the fifth message within a certain period of time, or temporarily send the fifth message within a window, or temporarily send the fifth message within a timer.

[0621] The value of Kssb corresponds to NCD-SSB or CD-SSB.

[0622] In some embodiments of this application, when the state of the first cell changes from the fourth state to the fifth state, the UE believes that the network-side device will send a short message;

[0623] If the status of the first cell changes from the fourth state to the fifth state, the UE assumes that the network-side device will not send short messages.

[0624] When the state of the first cell changes from state four to state six, the UE assumes that the network-side device will send a short message.

[0625] If the status of the first cell changes from the fourth state to the sixth state, the UE assumes that the network-side device will not send short messages.

[0626] When the state of the first cell changes from state 5 to state 4, the UE assumes that the network-side device will send a short message.

[0627] If the status of the first cell changes from the fifth state to the fourth state, the UE assumes that the network-side device will not send short messages.

[0628] When the state of the first cell changes from state 6 to state 4, the UE assumes that the network-side device will send a short message.

[0629] If the status of the first cell changes from the sixth state to the fourth state, the UE assumes that the network-side device will not send short messages.

[0630] When the state of the first cell changes from state 5 to state 6, the UE assumes that the network-side device will send a short message.

[0631] If the status of the first cell changes from the fifth state to the sixth state, the UE assumes that the network-side device will not send short messages.

[0632] When the state of the first cell changes from state 6 to state 5, the UE assumes that the network-side device will send a short message.

[0633] If the status of the first cell changes from the sixth state to the fifth state, the UE assumes that the network-side device will not send short messages.

[0634] The terminal provided in this application embodiment, when camped in a first cell, performs at least one of the following: determining whether the state of the first cell has changed from a first state to a second state or a third state; and sending first information to the network-side device of the first cell, the first information indicating the UE's request for second information. Through this solution, when the terminal's camped cell changes from a first state to a second or third state, the terminal can determine the state change of the camped cell, promptly learn about the change in the camped cell state, and thus execute corresponding communication strategies. And / or, the terminal can send information indicating the UE's request for second information to the network-side device, enabling the network-side device to make reasonable decisions based on the terminal's request for second information. Thus, an energy-saving collaborative mechanism between the terminal and the network-side device is realized, thereby improving communication performance.

[0635] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0636] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 11 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0637] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 8 The communication device shown. (As shown) Figure 11As shown, the network-side device 900 includes: an antenna 91, a radio frequency (RF) device 92, a baseband device 93, a processor 94, and a memory 95. The antenna 91 is connected to the RF device 92. In the uplink direction, the RF device 92 receives information through the antenna 91 and transmits the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be transmitted and sends it to the RF device 92. The RF device 92 processes the received information and transmits it through the antenna 91.

[0638] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 93, which includes a baseband processor.

[0639] Baseband device 93 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 9 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 95 via a bus interface to call the program in the memory 95 and execute the network device operations shown in the above method embodiment.

[0640] The network-side device may also include a network interface 96, such as a Common Public Radio Interface (CPRI).

[0641] Specifically, the network-side device 900 in this application embodiment further includes: instructions or programs stored in memory 95 and executable on processor 94, wherein processor 94 calls the instructions or programs in memory 95 to execute. Figure 8 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0642] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described communication method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0643] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0644] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described communication method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0645] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0646] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described communication method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0647] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the UE-side method as described above, and the network-side device can be used to perform the steps of the network-side device-side method as described above.

[0648] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0649] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0650] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A communication method, characterized in that, The method includes: The user equipment (UE) is camped in the first cell, and the UE performs at least one of the following: Determine whether the state of the first cell has changed from the first state to the second state or the third state; Send first information to the network-side equipment of the first cell, the first information being used to indicate the UE's need for second information.

2. The method according to claim 1, characterized in that, The UE determines whether the state of the first cell changes from a first state to a second state or a third state, including: The UE receives first indication information from the network-side device; The UE determines whether the state of the first cell has changed from the first state to the second state or the third state based on the first indication information; The first indication information is used to indicate that the first cell changes from the first state to the second state or the third state.

3. The method according to claim 2, characterized in that, The first indication information is carried by third information; the third information includes at least one of the following: Dedicated signaling; System information; Paging messages; SMS; Downlink Control Information (DCI) corresponding to the paging message; Downlink control information (DCI) corresponding to short messages.

4. The method according to claim 3, characterized in that, The third information includes a first field, which is a specific field reserved for the first indication information in the third information, or a related field in the third information that is allowed to be reused; The first field contains one bit, which indicates whether the first cell is in an energy-saving state or a non-energy-saving state; or, the first field contains N bits, which indicate that the first cell is in a target state, which is one of the first state, the second state, and the third state, where N is an integer greater than 1.

5. The method according to claim 1, characterized in that, The UE determines whether the state of the first cell has changed from a first state to a second state or a third state, including at least one of the following: If the UE fails to detect the second information of the first cell N times consecutively, or within a preset time period, or after the timer expires, the UE determines that the first cell has changed from the first state to the second state or the third state. If the UE fails to detect the second information of the first cell for N consecutive times, or within a preset time period, or after the timer expires, and / or if the UE does not have a stored first configuration or does not have a valid first configuration, the UE determines that the first cell has changed from the first state to the second state. The first configuration is a configuration used to request the first cell to send the second information; If the UE fails to detect the second information of the first cell for N consecutive times, or within a preset time period, or after the timer expires, and / or if the UE does not have a stored first configuration or does not have a valid first configuration, the UE determines that the first cell has changed from the first state to the third state. If the UE fails to detect the second information of the first cell for N consecutive times, or within a preset time period, or after a timer expires, and / or the UE has a stored first configuration or a valid first configuration, and / or the UE does not receive a Random Access Response (RAR) after requesting the first cell to send the second information through the first configuration, and / or the UE does not receive the second information after receiving the RAR after requesting the first cell to send the second information through the first configuration, the UE determines that the first cell has changed from the first state to the second state or the third state.

6. The method according to any one of claims 1 to 5, characterized in that, The UE sends first information to the network-side device of the first cell, including: When the first condition is met, the UE sends the first information to the network-side device; The first condition includes at least one of the following: The UE needs the second information from the first cell; The first cell is the serving cell or the cell where the UE is camped; The UE receives fourth information from the network-side device, and the fourth information is used to trigger the UE to send the first information. After the UE camps on the first cell, it reaches a first time point, which is the time point at which the first information is sent every second time interval. After the UE receives the fourth information, it reaches the second time point, which is the time point at which the first information is sent every third time interval; The conditions for sending the first information.

7. The method according to claim 6, characterized in that, The fourth piece of information is at least one of the following: Downlink Control Information (DCI); Proprietary Radio Resource Control (RRC) messages; System information; SMS; Paging messages; New definition of signaling; Existing signaling.

8. The method according to claim 6 or 7, characterized in that, The fourth information includes at least one of the following: The second field is used to indicate sending the first information to the network-side device; Resource information, wherein the resource information indicates the resources used by the UE to send the first information; The content of the first information; The conditions for sending the first information.

9. The method according to claim 8, characterized in that, The second domain applies to at least one of the following: All UEs within the first cell; At least some of the non-connected UEs in the first cell; The indication method for the target of the first domain is either explicit or implicit.

10. The method according to any one of claims 1 to 9, characterized in that, The first information includes at least one of the following: Dedicated preamble; Random access message 3Msg 3; Random Access Message A Msg A Uplink Physical Shared Channel (PUSCH); RRC message; Media Access Control - Control Unit (MAC CE); Information sent by RO at the time of target random access; Information transmitted through the target logical channel.

11. The method according to claim 10, characterized in that, The dedicated preamble indicates the UE's requirement for the second information.

12. The method according to any one of claims 1 to 11, characterized in that, The first information is used to indicate the UE's need for the second information, including: The first information indicates that the UE needs the second information; or the first information is used to indicate whether the UE needs the second information.

13. The method according to any one of claims 1 to 12, characterized in that, The second information includes at least one of the following: Synchronization Signal Block (SSB) and System Information Block Type 1 (SIB1).

14. The method according to any one of claims 1 to 13, characterized in that, The first state includes at least one of the following: The transmission of the second message does not require a request from the UE; The network-side device sends the second information; The network-side device sends the second information within the first time period, the timer's timing period, or the first window, or sends the second information temporarily. Non-energy-saving state; The network-side device does not listen for requests sent by the UE regarding the second information; The second state includes at least one of the following: The transmission of the second information requires a UE request; The network-side device listens for requests sent by the UE regarding the second information; The network-side device did not send the second information; The network-side device did not send the second information within the first time period, the timer's timing period, or the first window, or did not temporarily send the second information; Energy saving status; The third state includes at least one of the following: The network-side device does not listen for requests sent by the UE regarding the second information; The network-side device did not send the second information; Energy saving status.

15. The method according to any one of claims 1 to 14, characterized in that, The method further includes: The user equipment (UE) determines the state of the first cell; The state of the first cell includes one of the following: the fourth state, the fifth state, and the sixth state.

16. The method according to claim 15, characterized in that, The fourth state includes at least one of the following: The fifth message does not require a request to be sent; The network-side device sends the fifth piece of information; Non-energy-saving state; The value of Kssb corresponds to the Synchronization System Information Block (CD-SSB) defined in the cell. The fifth state includes at least one of the following: The transmission of the fifth piece of information requires a UE request. The network-side device did not send the fifth message; Energy saving status; The value of Kssb corresponds to the non-cell-defined Synchronization System Information Block (NCD-SSB); The sixth state includes at least one of the following: The network-side device may temporarily send the fifth information, or temporarily send the fifth information within a certain period of time, or temporarily send the fifth information within a window, or temporarily send the fifth information within a timer; The value of Kssb corresponds to NCD-SSB or CD-SSB.

17. The method according to claim 16, characterized in that, The method further includes at least one of the following: When the state of the first cell changes from the fourth state to the fifth state, the UE believes that the network-side device will send a short message; If the state of the first cell changes from the fourth state to the fifth state, the UE believes that the network-side device will not send the short message; When the state of the first cell changes from the fourth state to the sixth state, the UE believes that the network-side device will send the short message; If the state of the first cell changes from the fourth state to the sixth state, the UE believes that the network-side device will not send the short message; When the state of the first cell changes from the fifth state to the fourth state, the UE believes that the network-side device will send the short message; If the state of the first cell changes from the fifth state to the fourth state, the UE believes that the network-side device will not send the short message; When the state of the first cell changes from the sixth state to the fourth state, the UE believes that the network-side device will send the short message; If the state of the first cell changes from the sixth state to the fourth state, the UE believes that the network-side device will not send the short message; When the state of the first cell changes from the fifth state to the sixth state, the UE believes that the network-side device will send the short message; If the state of the first cell changes from the fifth state to the sixth state, the UE believes that the network-side device will not send the short message; When the state of the first cell changes from the sixth state to the fifth state, the UE believes that the network-side device will send the short message; If the state of the first cell changes from the sixth state to the fifth state, the UE believes that the network-side device will not send the short message.

18. A communication method, characterized in that, The method includes: Network-side devices perform at least one of the following: Change the status of the first cell from the first status to the second or third status; A fourth message is sent to the user equipment (UE), the fourth message being used to trigger the UE to send a first message, the first message being used to indicate the UE's need for a second message.

19. The method according to claim 18, characterized in that, The method further includes: The network-side device sends a first indication message to the UE; The first indication information is used to indicate that the first cell changes from the first state to the second state or the third state.

20. The method according to claim 19, characterized in that, The first indication information is carried by third information; the third information includes at least one of the following: Dedicated signaling; System information; Paging messages; SMS; Downlink Control Information (DCI) corresponding to the paging message; Downlink control information (DCI) corresponding to short messages.

21. The method according to claim 20, characterized in that, The third information includes a first field, which is a specific field reserved for the first indication information in the third information, or a related field in the third information that is allowed to be reused; The first field contains one bit, which indicates whether the first cell is in an energy-saving state or a non-energy-saving state; or, the first field contains N bits, which indicate that the first cell is in a target state, which is one of the first state, the second state, and the third state, where N is an integer greater than 1.

22. The method according to any one of claims 18 to 21, characterized in that, The method further includes: The network-side device determines, based on the sixth information, whether to change the state of the first cell from the first state to the second state or the third state; The sixth piece of information includes at least one of the following: Implementation of network-side devices; The reselection priority of the frequency corresponding to the first cell; The first information is used to indicate the UE's need for the second information.

23. The method according to any one of claims 18 to 22, characterized in that, The second information includes at least one of the following: Synchronization Signal Block (SSB) and System Information Block Type 1 (SIB1).

24. The method according to any one of claims 18 to 23, characterized in that, The first state includes at least one of the following: The transmission of the second message does not require a request from the UE; The network-side device sends the second information; The network-side device sends the second information within the first time period, the timer's timing period, or the first window, or sends the second information temporarily. Non-energy-saving state; The network-side device does not listen for requests sent by the UE regarding the second information; The second state includes at least one of the following: The transmission of the second information requires a UE request; The network-side device listens for requests sent by the UE regarding the second information; The network-side device did not send the second information; The network-side device did not send the second information within the first time period, the timer's timing period, or the first window, or did not temporarily send the second information; Energy saving status; The third state includes at least one of the following: The network-side device does not listen for requests sent by the UE regarding the second information; The network-side device did not send the second information; Energy saving status.

25. The method according to any one of claims 18 to 24, characterized in that, The method further includes: The network-side device changes the state of the first cell, and the state of the first cell is one of the following: fourth state, fifth state, and sixth state.

26. The method according to claim 25, characterized in that, The network-side device changes the state of the first cell, including one of the following: The network-side device changes the state of the first cell from the fourth state to the fifth or sixth state; The network-side device changes the state of the first cell from the fifth state to the fourth or sixth state; The network-side device changes the state of the first cell from the sixth state to the fourth or fifth state.

27. The method according to claim 25 or 26, characterized in that, The fourth state includes at least one of the following: The transmission of the fifth message does not require a UE request; The network-side device sends the sixth message; Non-energy-saving state; The value of Kssb corresponds to CD-SSB; The fifth state includes at least one of the following: The transmission of the sixth piece of information requires a UE request. The network-side device did not send the sixth piece of information; Energy saving status; The value of Kssb corresponds to NCD-SSB; The sixth state includes at least one of the following: The network-side device may temporarily send the sixth information, or temporarily send the sixth information within a certain period of time, or temporarily send the sixth information within a window, or temporarily send the sixth information within a timer; The value of Kssb corresponds to NCD-SSB or CD-SSB.

28. The method according to any one of claims 25 to 27, characterized in that, The method further includes at least one of the following: When the state of the first cell changes from the fourth state to the fifth state, the network-side device will send a short message; If the state of the first cell changes from the fourth state to the fifth state, the network-side device will not send the short message; When the state of the first cell changes from the fourth state to the sixth state, the network-side device will send the short message; If the state of the first cell changes from the fourth state to the sixth state, the network-side device will not send the short message; When the state of the first cell changes from the fifth state to the fourth state, the network-side device will send the short message; If the state of the first cell changes from the fifth state to the fourth state, the network-side device will not send the short message; When the state of the first cell changes from the sixth state to the fourth state, the network-side device will send the short message; If the state of the first cell changes from the sixth state to the fourth state, the network-side device will not send the short message. When the state of the first cell changes from the fifth state to the sixth state, the network-side device will send the short message; If the state of the first cell changes from the fifth state to the sixth state, the network-side device will not send the short message; When the state of the first cell changes from the sixth state to the fifth state, the network-side device will send the short message; If the state of the first cell changes from the sixth state to the fifth state, the network-side device will not send the short message.

29. A communication device, characterized in that, The device includes: a processing module; The processing module is configured to perform at least one of the following when the user equipment (UE) is camped in the first cell: Determine whether the state of the first cell has changed from the first state to the second state or the third state; Send first information to the network-side equipment of the first cell, the first information being used to indicate the UE's need for second information.

30. A communication device, characterized in that, The device includes: a processing module; The processing module is configured to perform at least one of the following: Change the status of the first cell from the first status to the second or third status; A fourth message is sent to the user equipment (UE), the fourth message being used to trigger the UE to send a first message, the first message being used to indicate the UE's need for a second message.

31. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the communication method as described in any one of claims 1 to 17.

32. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the communication method as described in any one of claims 18 to 28.

33. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the communication method as described in any one of claims 1 to 17, or implement the steps of the communication method as described in any one of claims 18 to 28.

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