Wireless communication method and apparatus, and device

Abstract

The present application relates to the field of communications, and discloses a wireless communication method and apparatus, and a device. The wireless communication method in embodiments of the present application comprises: a terminal acquires first information; the terminal executes a first operation on the basis of the first information, wherein the first information comprises at least one of the following: at least one set of channel knowledge maps, environment information of at least one cell and position information of at least one cell or base station or TRP, a cell list associated with at least one area, and a cell list associated with a target scenario; wherein the first operation comprises at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

Description

Wireless communication methods, apparatus and equipment

[0001] Cross-reference of related applications

[0002] This application claims priority to Chinese Patent Application No. 202411954565.3, filed on December 27, 2024, entitled "Wireless Communication Method, Apparatus and Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, specifically relating to a wireless communication method, apparatus, and device. Background Technology

[0004] In related technologies, for idle and deactivated terminals, periodic Radio Resource Management (RRM) measurements are required for timely cell reselection. For connected terminals, measurements are performed based on network-configured settings. Although New Radio (NR) systems introduce RRM measurement relaxation for idle and deactivated terminals, and support RLM and Beam Failure Detection (BFD) measurement relaxation for connected terminals to reduce terminal measurements and power consumption, these relaxation mechanisms have limitations. Firstly, measurement relaxation only applies to some terminals within a cell, such as nearby or non-edge users. Secondly, edge users still require relatively short measurement intervals.

[0005] Therefore, how to effectively reduce terminal measurements is a problem that needs to be solved. Summary of the Invention

[0006] This application provides a wireless communication method, apparatus, and device that can solve the problems existing in the current measurement relaxation mechanism.

[0007] Firstly, a wireless communication method is provided, comprising:

[0008] The terminal obtains the first information;

[0009] The terminal performs a first operation based on the first information;

[0010] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or TRP, a list of cells associated with at least one region, and a list of cells associated with the target scenario.

[0011] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0012] Secondly, a wireless communication method is provided, including:

[0013] The network-side device sends the first information to the terminal;

[0014] The first information is used by the terminal to perform the first operation;

[0015] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or TRP, a list of cells associated with at least one region, and a list of cells associated with the target scenario.

[0016] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0017] Thirdly, a wireless communication device is provided, comprising: a receiving module and a processing module;

[0018] The receiving module or the processing module is used to acquire the first information;

[0019] The processing module is used to perform a first operation based on the first information;

[0020] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or TRP, a list of cells associated with at least one region, and a list of cells associated with the target scenario.

[0021] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0022] Fourthly, a wireless communication device is provided, comprising:

[0023] The sending module is used to send the first information to the terminal;

[0024] The first information is used by the terminal to perform the first operation;

[0025] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or TRP, a list of cells associated with at least one region, and a list of cells associated with the target scenario.

[0026] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0027] Fifthly, a wireless 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.

[0028] 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.

[0029] Seventhly, a terminal is provided, including a processor and a communication interface;

[0030] The processor or the communication interface is used to acquire the first information;

[0031] The processor is used to perform a first operation based on the first information;

[0032] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or TRP, a list of cells associated with at least one region, and a list of cells associated with the target scenario.

[0033] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0034] 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 second aspect.

[0035] Ninthly, a network-side device is provided, including a processor and a communication interface;

[0036] The communication interface is used to send first information to the terminal;

[0037] The first information is used by the terminal to perform the first operation;

[0038] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or TRP, a list of cells associated with at least one region, and a list of cells associated with the target scenario.

[0039] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0040] 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.

[0041] 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.

[0042] 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 a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0043] 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 wireless communication method as described in the first aspect, or to implement the steps of the wireless communication method as described in the second aspect.

[0044] In this embodiment, the terminal performs a first operation based on first information; wherein the first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell, base station, or TRP, a list of cells associated with at least one region, and a list of cells associated with a target scenario; wherein the first operation includes at least one of the following: performing a cell handover decision, performing a cell reselection decision, and determining whether to send a first uplink signal. Compared to performing the first operation based on a measurement reference signal, the terminal performing the first operation based on the first information can be applied to all terminals in the cell and does not require periodic reference signal detection, or signal detection with a longer period, thereby effectively reducing terminal measurements and increasing the continuous sleep time of the terminal, thus reducing the terminal's power consumption. Attached Figure Description

[0045] Figure 1 is a schematic diagram of a communication system architecture provided in an embodiment of this application.

[0046] Figure 2 is one of the schematic flowcharts of a wireless communication method provided according to an embodiment of this application.

[0047] Figure 3 is a second schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0048] Figure 4 is one of the schematic flowcharts of cell handover provided according to an embodiment of this application.

[0049] Figure 5 is a second schematic flowchart of cell handover according to an embodiment of this application.

[0050] Figure 6 is a schematic flowchart of cell handover according to an embodiment of this application.

[0051] Figure 7 is a schematic flowchart of condition switching according to an embodiment of this application.

[0052] Figure 8 is a schematic flowchart of cell reselection provided according to an embodiment of this application.

[0053] Figure 9 is one of the schematic block diagrams of a wireless communication device provided according to an embodiment of this application.

[0054] Figure 10 is a second schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0055] Figure 11 is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0056] Figure 12 is a schematic diagram of the hardware structure of a terminal according to an embodiment of this application.

[0057] Figure 13 is a schematic block diagram of a network-side device provided according to an embodiment of this application. Detailed Implementation

[0058] 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.

[0059] 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.

[0060] 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 the sender explicitly informing the receiver of specific information, the required operation, or the requested result in the instruction sent. An indirect instruction can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the required operation or requested result based on the judgment result.

[0061] 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.

[0062] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as User Equipment (UE), and 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 (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, 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 (APs), or Wireless Fidelity (WiFi) nodes, etc.Among them, base stations 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), Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform stations). The term "base station" can be any suitable term in the field, such as "station" or any other appropriate 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 term. It should be noted that the embodiments of this application only use the base station in the NR system as an example for introduction, and do not limit the specific type of base station.

[0063] 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 (L-NEF), and Binding Support. Functions include BSF, Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), and Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform station).It should be noted that the embodiments of this application only use the core network equipment in the NR system as an example for introduction, and do not limit the specific type of core network equipment. If the name of the core network equipment mentioned in the embodiments of this application changes in subsequent protocol versions (e.g., 6G), it is also within the scope of protection of this application.

[0064] 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).

[0065] To better understand the technical solution of this application, the following explains the channel knowledge map related to this application.

[0066] To achieve environmental awareness in wireless communication, the concept of channel knowledge maps has been proposed. In a broad sense, a channel knowledge map is a database with the physical or virtual location of mobile nodes as the main index. It can directly reflect the localized channel characteristics of a specific location, regardless of transceiver activity. Based on location and channel knowledge maps, it is helpful to obtain prior channel information in advance, improve the ability to understand the wireless environment, and realize rapid real-time prediction and reasoning of channel knowledge. It also helps to reduce or even eliminate complex real-time channel state and channel-related information acquisition.

[0067] Based on different environmental cognitive abilities, the following forms of channel knowledge maps can be generated:

[0068] Channel Gain Map (CGM) can predict the channel gain of wireless links in a target area. CGM can be used to adjust the transmitter's transmission status and other operations.

[0069] Channel Shadowing Map (CSM) is used to predict shadow fading in a target area or at a specific location.

[0070] Channel Path Map (CPM) parameters include the number of paths and their power, phase, delay, angle of arrival (AoA), and angle of departure (AoD).

[0071] In addition to the aforementioned quasi-static channel knowledge map, for relatively static environments or scenarios with periodically changing environments (such as smart factories), the channel knowledge map can also include relatively dynamic channel information, such as instantaneous channel state information (CSI) caused by multipath and Doppler frequency shift, and channel multipath information (path power, path delay), etc.

[0072] Compared to 3D city or terrain maps, radio environment maps, and blank television maps, channel knowledge maps delve deeper into the intrinsic characteristics of wireless channels. In principle, they rely solely on the radio propagation environment, without depending on additional parameters (such as the dielectric properties of the environment, transmitter status) or complex processing (such as ray tracing), thereby achieving environmental awareness and reducing or even avoiding real-time CSI acquisition.

[0073] To better understand the technical solution of this application, the following describes the perception-assisted communication related to this application.

[0074] Wireless communication and radar sensing have been developing in parallel, but with limited overlap. They share many commonalities in signal processing algorithms, equipment, and to some extent, system architecture. In recent years, traditional radar has been evolving towards more general wireless sensing. Wireless sensing broadly refers to retrieving information from received radio signals. Integrated Sensing and Communication (ISAC) has the potential to integrate wireless sensing into mobile networks. Sensing mobile networks can simultaneously provide communication and wireless sensing services, and due to their large broadband coverage and robust infrastructure, they hold the promise of becoming a ubiquitous wireless sensing solution.

[0075] In the application of sensing technology, sensing devices can perceive or understand the physical world through the transmission, reflection, and scattering of wireless signals in communication networks. Simultaneously, communication devices can leverage this sensing information to achieve high-precision positioning, imaging, and environmental reconstruction capabilities, thereby further improving communication performance, such as more accurate beamforming, faster beam fault recovery, and reduced CSI overhead. Technologies that utilize sensing to enhance communication performance can also be termed sensing-assisted communication.

[0076] In one illustration of sensing-assisted communication, the receiving end of the sensing device reconstructs the environment based on received sensing signals. These received sensing signals include direct signals and one or more signals reflected or scattered from the surrounding environment. Based on the reconstructed environmental signals, the location information of the signal transmitter and receiver, and a channel information prediction model, channel information is obtained. Channel modeling methods in the channel information prediction model include ray tracing and statistical methods.

[0077] To better understand the technical solution of this application, the following explains the terminal positioning related to this application.

[0078] Both channel knowledge maps and perception-assisted communication inevitably require obtaining the location information of the transmitting or receiving end during their application. Generally speaking, terminal location acquisition can be divided into two main categories: those based on the 3rd Generation Partnership Project (3GPP) and those not based on 3GPP.

[0079] Considering the increasing urgency of positioning needs from individual users and vertical industries, 3GPP has defined a series of positioning technologies for both 4G and 5G systems. In 4G systems, positioning accuracy reaches 10–100 meters primarily based on time-measured Observed Time Difference of Arrival (OTDOA), Uplink Time Difference of Arrival (UL-TDOA), and Cell Identity (CID), as well as schemes integrating multiple positioning technologies. Furthermore, for indoor scenarios, the protocol also supports positioning technologies based on Wireless LAN (WLAN) or Bluetooth. 5G systems further enhance positioning accuracy based on 4G systems. They not only propose to use the multi-beam characteristics of Multiple Input Multiple Output (MIMO) for positioning enhancement, but also define positioning technologies based on cellular round trip time (RTT), downlink time difference of arrival (DL-TDOA), angle of arrival (AOA), and angle of departure (AOD), so that the positioning accuracy can reach 3 to 10 meters.

[0080] Besides 3GPP-based positioning technologies, there are many other non-3GPP-based positioning methods, which can be achieved through the numerous sensors equipped on the terminal. These include GNSS-based positioning (such as GPS and BeiDou); laser-based or camera-based positioning, such as cameras or lidar on drones and vehicles; and inertial measurement units (IMUs) such as accelerometers and gyroscopes, which provide alternative methods for position estimation that relies little or no on external signals. These non-3GPP-based positioning technologies can serve as effective complementary means, improving positioning accuracy and supporting location acquisition in more scenarios.

[0081] To better understand the technical solution of this application, the following explains the mobility management related to this application.

[0082] Mobility management involves different operations depending on the user terminal (UE) state. For connected UEs, cell handover is required due to UE movement; for idle or inactive UEs, cell reselection is required.

[0083] The overall process for cell handover is as follows:

[0084] Handover Measurement: The network side configures the measurement objects for the terminal and provides measurement report configuration through Radio Resource Control (RRC) signaling. The measurement report can be triggered by a timer or by an event. The protocol defines a variety of measurement events, including A1 event (the channel quality of the neighboring cell is higher than the threshold), A2 (the channel quality of the serving cell is lower than the threshold), A3 (the channel quality of the neighboring cell is higher than the channel quality of the serving cell by a channel quality offset value), etc. (including intra-system handover and inter-system handover).

[0085] Handover decision: In unconditional handover scenarios, the network-side device decides whether to trigger a handover based on the measurement results reported by the terminal; in conditional handover scenarios, the terminal decides whether to perform a conditional handover based on the measurement results.

[0086] Handover execution: In unconditional handover scenarios, the network-side device sends a handover signaling message, instructing the terminal to initiate random access in the target cell; in conditional handover scenarios, the terminal initiates random access in the target cell based on the measurement results and the target cell configuration provided by the network-side device.

[0087] To improve handover performance, the NR system has made relevant enhancements to the handover process, such as Dual Active Protocol Stack (DAPS), Conditional Handover (CHO), and L1 / L2 triggered Mobility (LTM).

[0088] DAPS: To reduce handover interruption time, the NR system introduces the DAPS feature. Its core idea is to maintain the connection and data transmission with the source base station during the handover process until the UE successfully connects to the target base station. The downlink transmission process is manifested in the UE continuing to receive downlink user data from the source base station until it successfully hands over to the target cell; the uplink transmission process is manifested in the UE continuing to transmit uplink user data to the source base station until the UE completes the RACH process to the target base station.

[0089] CHO: To reduce handover latency, the NR system introduces the CHO feature. Its core idea is that the terminal will perform the handover itself when one or more handover execution conditions are met. Previously, the terminal would start evaluating the execution conditions after receiving the relevant configuration, and stop evaluating the execution conditions after the handover (such as conditional handover) is performed.

[0090] LTM: To further reduce handover latency, the NR system introduces the LTM feature. Its core idea is that when a terminal moves from the coverage area of ​​one cell to another, the serving cell needs to be changed at some point. Layer 1 or Layer 2 (L1 / L2) signaling is used to change the serving cell. Compared with the previous serving cell change process which was based on Layer 3 (L3) measurement and triggered by RRC signaling, LTM can achieve the goals of low latency, low overhead, and low downtime.

[0091] The overall process of the neighborhood re-selection is as follows:

[0092] The UE obtains cell reselection-related parameters through system messages sent by the network side;

[0093] The UE continuously performs measurements within its own cell and determines whether to initiate neighbor cell measurements based on the following conditions: For the same frequency, the UE compares the Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ) measurement results with the corresponding intra-frequency reselection trigger thresholds. If the conditions are met, the UE initiates measurements of neighbor cells. For frequencies with the same priority and frequencies with lower priority, the UE compares the RSRP and RSRQ measurement results with the corresponding inter-frequency reselection trigger thresholds. If the conditions are met, the UE initiates measurements of neighbor cells. For high-priority frequencies, the UE continuously performs measurements on them.

[0094] Based on the measurement results, the UE performs cell reselection. If a high-priority inter-frequency neighbor cell exists that meets the high-priority cell reselection decision criteria, the UE reselects to the high-priority inter-frequency neighbor cell. When there is no suitable high-priority inter-frequency neighbor cell, the UE reselects to a co-frequency neighbor cell or a same-priority inter-frequency neighbor cell according to the R criterion. When there are no suitable high-priority inter-frequency neighbor cells, co-frequency neighbor cells, or same-priority inter-frequency neighbor cells, the UE reselects to a low-priority inter-frequency neighbor cell according to the low-priority cell reselection decision criteria.

[0095] The wireless 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.

[0096] Figure 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application. As shown in Figure 2, the wireless communication method 200 may include at least some of the following:

[0097] S210, the terminal obtains first information; wherein, the first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or TRP, a list of cells associated with at least one region, and a list of cells associated with the target scenario;

[0098] S220, the terminal performs a first operation based on the first information; wherein the first operation includes at least one of the following: performing a cell handover decision, performing a cell reselection decision, and determining whether to send a first uplink signal.

[0099] It should be understood that Figure 2 illustrates the steps or operations of the wireless communication method 200, but these steps or operations are merely examples, and other operations or variations of the various operations in Figure 2 may also be performed in this application.

[0100] In this embodiment, the terminal performs a first operation based on the first information. Compared with performing the first operation based on the measurement reference signal, this embodiment can be applied to all terminals in the cell without the need for periodic reference signal detection, or to use a longer period for signal detection. This can effectively reduce terminal measurements and increase the continuous sleep time of the terminal, thereby reducing the power consumption of the terminal.

[0101] In some embodiments, in S210 above, the terminal may receive the first information from a network-side device, or the terminal may obtain the first information locally.

[0102] Optionally, if the terminal obtains the first information locally, the first information is determined by the terminal based on historical data, or the first information is predicted by the terminal based on AI unit prediction.

[0103] Optionally, when the terminal can receive the first information from the network-side device, the first information may be carried by at least the following: system information (SI), radio resource control (RRC) signaling, downlink control information (DCI), and media access control control element (MAC CE) signaling.

[0104] The location information of at least one cell, base station, or TRP described in the embodiments of this application can be understood as the location information of at least one cell, or the location information of at least one base station, or the location information of at least one TRP.

[0105] In some embodiments, the first information is related to at least one of the following:

[0106] Path loss, channel gain, RSRP, shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI.

[0107] In some embodiments, the first information is related to channel knowledge information;

[0108] The channel knowledge information includes, but is not limited to, at least one of the following:

[0109] Path loss, channel gain, RSRP, shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI.

[0110] Optionally, the multipath information may include, but is not limited to, at least one of the following:

[0111] Path delay, path power, phase, angle.

[0112] In this embodiment of the application, the first information being related to the channel knowledge information can be understood as the channel knowledge information being obtained or predicted based on the first information.

[0113] It should be noted that the channel knowledge map is a database primarily indexed by the terminal's location (the terminal's geographic location and / or virtual location). It directly reflects the localized channel characteristics of a specific location, independent of the terminal's transceiver activity. Based on the terminal's location and the channel knowledge map, it helps to obtain prior channel information (i.e., channel quality information) in advance, improves the ability to understand the wireless environment, enables rapid real-time prediction and reasoning of channel knowledge, and helps to reduce or even eliminate complex channel-related information in real-time channel state acquisition.

[0114] Optionally, the geographic location of the terminal may include at least one of the following: physical location, 2D location range, 3D location range, angle and distance, and height information (relative height information or absolute height information).

[0115] Optionally, the virtual location of the terminal can be a measurement for the positioning of the terminal, wherein the measurement includes at least one of the following: time difference of arrival, round-trip time delay, departure angle, and arrival angle.

[0116] Optionally, the geographical location or virtual location of the terminal can also be a sub-region, a grid, or a radio frequency grid (e.g., the area is further divided into sub-regions, and each sub-region can be called a grid or a radio frequency grid).

[0117] In some embodiments, the channel knowledge map includes, but is not limited to, at least one of the following:

[0118] Channel Gain Map (CGM), Channel Shading Map (CSM), Channel Path Map (CPM), Line-of-Sight Link Probability Map, Dynamic Channel Knowledge Map.

[0119] In some implementations, the aforementioned channel knowledge information can be obtained or predicted based on a channel knowledge map.

[0120] Optionally, at least one of the following can be obtained or predicted based on the channel knowledge map:

[0121] Path loss, channel gain, RSRP, shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI.

[0122] For example, the channel knowledge map includes a channel gain map (CGM), which contains channel gain information for different geographical regions or geographical locations and their associated information. The channel gain map can predict the channel gain of wireless links in a target area and can be used to adjust the transmitter's transmission status. Specifically, channel gain can be directly obtained based on the channel gain map. Optionally, path loss, RSRP, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI, etc., can be further obtained.

[0123] For example, a channel knowledge map includes a channel shadow map (CSM), which contains different geographical regions or geographical locations and their associated shadow information (such as shadow variance, shadow fading, etc.). The channel shadow map (CSM) can be used to predict shadow fading in a target area or at a specific location. Specifically, shadow variance, shadow fading, etc., can be directly obtained based on the channel shadow map. Optionally, path loss, channel gain, RSRP, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI, etc., can be further obtained.

[0124] For example, a channel knowledge map includes a channel path map (CPM), which contains the number of paths associated with different geographical regions or geographical locations, the path power, phase, delay, and AoA, AoD, etc. Specifically, the number of paths, path power, phase, delay, and AoA, AoD, etc., can be directly obtained based on the channel path map. Optionally, path loss, channel gain, RSRP, spatial correlation matrix, multipath information, Rice factor, angle spread, delay spread, CSI, etc., can be further obtained.

[0125] For example, the channel knowledge map includes a line-of-sight (LOS) probability map, which contains multipath information for different geographical areas or locations, such as the distribution and probability of Line of Sight (LOS). Specifically, the number of paths, path power, phase, delay, and AoA and AoD can be directly obtained based on the LOS probability map. Optionally, path loss, channel gain, RSRP, spatial correlation matrix, multipath information, Rice factor, angle spread, delay spread, CSI, etc., can be further obtained.

[0126] Optionally, the angle information of the channel knowledge information can be the angle information of a few paths, such as the information of the N strongest paths. For example, for a terminal in a certain geographical location, the channel information obtained from the channel knowledge map includes: the path power, phase, vertical component of departure (zenith angle of departure, zenith AoD), and horizontal departure angle (azimuth angle of departure, azimuth AoD) of the three strongest paths.

[0127] It should be noted that the network-side device directly sends the channel knowledge map, and the terminal can directly obtain the corresponding channel knowledge information based on the location information.

[0128] It should be noted that the aforementioned channel knowledge map contains channel information for different geographical regions or geographical locations and their associated information. In other words, the terminal needs to query the channel knowledge map based on its location to obtain the corresponding channel knowledge information. The terminal location serves as an index to the channel knowledge map, either directly or indirectly.

[0129] For example, the input index of the Channel Knowledge Map (CKM) is terminal location information, which can be: a 2D location range, or a 3D location range, or location representation parameters based on polar coordinates such as angle and distance, or UE physical location information (such as latitude and longitude), or UE altitude information.

[0130] For example, the input index of the Channel Knowledge Map (CKM) is indirect information related to the UE's location. This indirect information corresponds to terminal measurements for different positioning methods, such as the time difference of reception of the positioning reference signal and the angle of arrival of the signal.

[0131] It is important to note that the channel knowledge map can be stored on the terminal side or the network side. In the scenario where it is stored on the terminal side, the terminal can obtain the corresponding channel information by querying the CKM based on its acquired terminal location information (such as downlink positioning-related measurements). In the scenario where it is stored on the network side, the network can obtain the channel information corresponding to the UE by querying the CKM based on its acquired terminal location information (such as location information reported by the terminal or obtained through uplink positioning-related measurements). Therefore, the different positioning methods mentioned above include relevant measurements used for both downlink and uplink positioning.

[0132] In some embodiments, the environmental information includes, but is not limited to, at least one of the following:

[0133] Radio map, sensing environmental point cloud information, 3D map.

[0134] In this embodiment, the environmental information can be point cloud information reconstructed from the physical world, such as the physical world of a digital twin; or the environmental information can be a radio environment map, such as a three-dimensional digital map, which represents information such as the height, width, length, and location of buildings; or the environmental information can be a 3D map, which can represent information such as the height, width, length, and location of objects in the environment; the environmental information can also include the electromagnetic reflection coefficients of objects, building surfaces, and point clouds.

[0135] It should be noted that the network-side device sends environmental information, and the terminal reconstructs the channel information or channel knowledge map based on ray tracing or other methods.

[0136] In some implementations, the aforementioned channel knowledge information can be obtained or predicted based on environmental information.

[0137] Optionally, at least one of the following can be obtained or predicted based on environmental information:

[0138] Path loss, channel gain, RSRP, multipath information, delay spread, CSI.

[0139] In some embodiments, the at least one cell includes at least one of the following:

[0140] The service area includes one or more neighboring communities.

[0141] In some embodiments, the first information may include the identifier of the at least one region, or the first information may include the length and width information of the at least one region.

[0142] In some implementations, the aforementioned channel knowledge information can be obtained or predicted based on location information.

[0143] Optionally, at least one of the following can be obtained or predicted based on location information:

[0144] Path loss, channel gain, RSRP, AoA, AoD, multipath information, delay spread, CSI.

[0145] In some implementations, the aforementioned channel knowledge information can be obtained or predicted based on at least one region.

[0146] Optionally, at least one of the following can be obtained or predicted based on at least one region:

[0147] Path loss, channel gain, RSRP, AoA, AoD, multipath information, delay spread, CSI.

[0148] In some embodiments, the target scenario includes, but is not limited to, at least one of the following:

[0149] Underground parking garages, tunnels, elevators, high-speed trains, enclosed spaces, physical barriers.

[0150] For example, if the target scenario is a tunnel, and the terminal recognizes that it will enter the tunnel, it anticipates a sharp drop in signal quality. Therefore, the target scenario can be categorized as related to channel knowledge information. In other words, when the terminal recognizes the target scenario, the channel quality in that scenario has some typical characteristics (such as a sharp drop and poor quality). Therefore, channel knowledge information can be obtained using the target scenario.

[0151] In some implementations, the aforementioned channel knowledge information can be obtained or predicted based on the target scenario.

[0152] Optionally, at least one of the following can be obtained or predicted based on the target scenario:

[0153] Path loss, channel gain, RSRP, AoA, AoD, multipath information, delay spread, CSI.

[0154] In some embodiments, the first uplink signal includes, but is not limited to, at least one of the following:

[0155] Cell handover request, uplink positioning reference signal, on-demand measurement signal trigger request, sounding reference signal (SRS).

[0156] Optionally, the uplink positioning reference signal may include SRS or other uplink reference signals, and this application does not limit this.

[0157] In some embodiments, at least some of the channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; and / or,

[0158] The at least one set of channel knowledge maps, at least some of which are different sets of channel knowledge maps, are associated with different base stations, TRPs, cells, regions, grids, or radio frequency grids.

[0159] In some embodiments, the at least partial channel knowledge map satisfies at least one of the following:

[0160] Each set of channel knowledge maps in the at least partial channel knowledge maps contains channel information for at least two locations within the associated frequency points or frequency domain range;

[0161] Each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for at least two locations within an associated base station, TRP, cell, or area; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated grid or radio frequency grid; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated area or at least two sub-areas within an area.

[0162] In some embodiments, different sets of channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency points, that is, the channel knowledge maps can be configured according to frequency point granularity (per frequency point). Optionally, each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information for at least two locations within the associated frequency points. Optionally, the terminal can determine a target channel knowledge map from the at least one set of channel knowledge maps based on its associated frequency point (such as the frequency point where the serving cell is located), and the terminal can obtain channel quality information of the terminal's location (the terminal's geographical location and / or the terminal's virtual location) from the target channel knowledge map.

[0163] In some embodiments, different sets of channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency domain ranges (e.g., 700MHz to 800MHz), meaning that channel knowledge maps can be configured according to frequency domain range granularity (per frequency domain range). Optionally, each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information for at least two locations within the associated frequency domain range. Optionally, the terminal can determine a target channel knowledge map from the at least one set of channel knowledge maps based on its associated frequency domain range (e.g., the frequency domain range where the serving cell is located), and the terminal can obtain channel quality information of its location (the terminal's geographical location and / or the terminal's virtual location) from the target channel knowledge map.

[0164] In some embodiments, different sets of channel knowledge maps in the at least one set of channel knowledge maps are associated with different base stations (such as gNBs), that is, channel knowledge maps can be configured at the base station granularity (per base station). Optionally, each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information for at least two locations within the associated base station. Optionally, the terminal can determine a target channel knowledge map from the at least one set of channel knowledge maps based on its serving base station, and the terminal can obtain channel quality information of the terminal's location (the terminal's geographical location and / or the terminal's virtual location) from the target channel knowledge map.

[0165] In some embodiments, different sets of channel knowledge maps in the at least one set of channel knowledge maps are associated with different cells, that is, channel knowledge maps can be configured at the cell granularity (per cell). Optionally, each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information for at least two locations within the associated cell. Optionally, the terminal can determine a target channel knowledge map from the at least one set of channel knowledge maps based on its serving cell, and the terminal can obtain channel quality information of the terminal's location (the terminal's geographical location and / or the terminal's virtual location) from the target channel knowledge map.

[0166] In some embodiments, different sets of channel knowledge maps in the at least one set of channel knowledge maps are associated with different zones, that is, channel knowledge maps can be configured according to zone granularity (per zone). Optionally, each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information of the associated zone, or each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information of at least two location information within the associated zone, or each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information of at least two sub-zones within the associated zone. Optionally, the terminal can determine a target channel knowledge map from the at least one set of channel knowledge maps based on its location zone, and the terminal can obtain channel quality information of its location (the terminal's geographic location and / or the terminal's virtual location) from the target channel knowledge map.

[0167] In some embodiments, different sets of channel knowledge maps in the at least one set of channel knowledge maps are associated with different graticles, that is, the channel knowledge maps can be configured according to graticle granularity (per graticle). Optionally, each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information of the associated graticles. Optionally, the terminal can determine a target channel knowledge map from the at least one set of channel knowledge maps based on the graticle it is located in, and the terminal can obtain channel quality information of the terminal's location (the terminal's geographical location and / or the terminal's virtual location) from the target channel knowledge map.

[0168] In some embodiments, different sets of channel knowledge maps in the at least one set of channel knowledge maps are associated with different radio frequency (RF) grids, i.e., channel knowledge maps can be configured at the RF grid granularity (per grid). Optionally, each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information of the associated RF grids. Optionally, the terminal can determine a target channel knowledge map from the at least one set of channel knowledge maps based on its own RF grid, and the terminal can obtain channel quality information of its location (the terminal's geographical location and / or the terminal's virtual location) from the target channel knowledge map.

[0169] In some embodiments, different sets of channel knowledge maps in the at least one set of channel knowledge maps are associated with different Transmission Reception Points (TRPs), that is, the channel knowledge maps can be configured at the TRP granularity (per TRP). Optionally, each set of channel knowledge maps in the at least one set of channel knowledge maps contains channel information for at least two locations within the associated TRP. Optionally, the terminal can determine a target channel knowledge map from the at least one set of channel knowledge maps based on its TRP, and the terminal can obtain channel quality information of the terminal's location (the terminal's geographical location and / or the terminal's virtual location) from the target channel knowledge map.

[0170] In some embodiments, the at least one cell is a cell applicable to the terminal within a first time period predicted by the terminal, or the at least one cell is a cell applicable to the terminal within a first time period predicted by the network side (such as access network equipment or core network equipment).

[0171] Optionally, the first duration can be agreed upon by a protocol, configured by the network side, or determined by the terminal.

[0172] It should be noted that the applicable cell for the terminal can be understood as the cell where the terminal is camped, the cell where the terminal may camp, or the cell where the terminal's camping probability is greater than a certain threshold.

[0173] Optionally, the terminal may predict the applicable cell for the terminal within the first time period based on the terminal's moving speed, moving direction, and current location; or, the terminal may predict the applicable cell for the terminal within the first time period based on historical data (such as the terminal's historical movement trajectory) or the terminal's movement trajectory predicted by the AI ​​unit.

[0174] Optionally, the network-side device (such as an access network device or a core network device) can predict the applicable cell for the terminal within the first time period based on the terminal's moving speed, the terminal's moving orientation, the terminal's current location, etc.; or, the network-side device (such as an access network device or a core network device) can predict the applicable cell for the terminal within the first time period based on historical data (such as the terminal's historical movement trajectory) or the terminal's movement trajectory predicted by the AI ​​unit, etc.

[0175] In some embodiments, the at least one region is the region applicable to the terminal within a first time period predicted by the terminal, or the at least one region is the region applicable to the terminal within a first time period predicted by the network side.

[0176] It should be noted that the applicable area of ​​the terminal can be understood as the area where the terminal resides, the area where the terminal may reside, and the area where the terminal's residency probability is greater than a certain threshold.

[0177] Optionally, the terminal can predict the area applicable to the terminal within the first time period based on the terminal's moving speed, moving direction, and current location; or, the terminal can predict the area applicable to the terminal within the first time period based on historical data (such as the terminal's historical movement trajectory) or the terminal's movement trajectory predicted by the AI ​​unit.

[0178] Optionally, the network-side device (such as an access network device or a core network device) can predict the area applicable to the terminal within the first time period based on the terminal's moving speed, the terminal's moving direction, the terminal's current location, etc.; or, the network-side device (such as an access network device or a core network device) can predict the area applicable to the terminal within the first time period based on historical data (such as the terminal's historical movement trajectory) or the terminal's movement trajectory predicted by the AI ​​unit, etc.

[0179] In some embodiments, the target scenario is a scenario applicable to the terminal within a first time period predicted by the terminal, or the target scenario is a scenario applicable to the terminal within a first time period predicted by the network side.

[0180] It should be noted that the applicable scenarios for the terminal can be understood as scenarios where the terminal resides, scenarios where the terminal may reside, and scenarios where the terminal's residency probability is greater than a specific threshold.

[0181] Optionally, the terminal can predict the applicable scenarios within the first time period based on the terminal's moving speed, moving direction, and current position; or, the terminal can predict the applicable scenarios within the first time period based on historical data (such as the terminal's historical movement trajectory) or the terminal's movement trajectory predicted by the AI ​​unit.

[0182] Optionally, the network-side device (such as an access network device or a core network device) can predict the applicable scenarios for the terminal within the first time period based on the terminal's moving speed, the terminal's moving orientation, the terminal's current location, etc.; or, the network-side device (such as an access network device or a core network device) can predict the applicable scenarios for the terminal within the first time period based on historical data (such as the terminal's historical movement trajectory) or the terminal's movement trajectory predicted by the AI ​​unit, etc.

[0183] In some embodiments, the above-described S220 may specifically include:

[0184] The terminal performs the first operation based on the first information and the terminal's location information.

[0185] In this embodiment, the terminal performs a first operation based on the first information and the terminal's location information. Compared to performing the first operation based on a measurement reference signal, this embodiment can be applied to all terminals in the cell without the need for periodic reference signal detection, or by using a longer period for signal detection. This can effectively reduce terminal measurements and increase the terminal's continuous sleep time, thereby reducing the terminal's energy consumption.

[0186] In some embodiments, the terminal performs channel modeling based on the environmental information of the at least one cell, the location information of the at least one cell, and the location information of the terminal to obtain the channel quality information.

[0187] For example, the channel modeling method can be the ray tracing method.

[0188] In this embodiment, the terminal performs channel modeling based on the environmental information of at least one cell, the location information of at least one cell, and the location information of the terminal to obtain channel quality information. Compared with obtaining channel quality information based on measurement reference signals, this embodiment can be applied to all terminals in the cell without the need for periodic reference signal detection, or to use a longer period for signal detection, thereby effectively reducing terminal measurements and increasing the continuous sleep time of the terminal, which in turn reduces the power consumption of the terminal.

[0189] In some embodiments, the location information of the terminal includes, but is not limited to, at least one of the following:

[0190] The terminal's geographical location, the terminal's virtual location, the terminal's geographical region, the sub-region where the terminal is located, the grid where the terminal is located, the radio frequency grid where the terminal is located, the terminal's moving speed, the terminal's moving direction, the terminal's orientation, and the terminal's posture.

[0191] For example, the terminal obtains its orientation or attitude through an inertial measurement unit, or the terminal obtains its orientation or attitude through accelerometers and gyroscopes on the terminal side.

[0192] In some embodiments, the first information includes condition switching conditions;

[0193] The switching conditions include, but are not limited to, at least one of the following: the signal quality threshold of the serving cell and the signal quality threshold of the neighboring cell, and the signal quality offset value between the serving cell and the neighboring cell.

[0194] In this embodiment, the terminal can obtain channel quality information based on at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell, location information of at least one cell, base station or TRP, a cell list associated with at least one region, a cell list associated with the target scenario, and the terminal's location information. The terminal can also determine whether to perform cell handover based on the obtained channel quality information and conditional handover conditions.

[0195] For example, if the signal quality of the serving cell obtained based on the first information is lower than the serving cell signal quality threshold, and the signal quality of the neighboring cell is higher than the neighboring cell signal quality threshold, the terminal performs a conditional handover.

[0196] For example, if the difference between the signal quality of the neighboring cell and the signal quality of the serving cell obtained based on the first information is higher than the signal quality offset between the serving cell and the neighboring cell, the terminal performs a conditional handover.

[0197] In some embodiments, the first information includes at least two sets of condition switching conditions;

[0198] Among them, different sets of condition switching conditions in the at least two sets of condition switching conditions correspond to different Quality of Service (QoS) requirements.

[0199] In this embodiment, different sets of condition switching conditions in at least two sets of condition switching conditions correspond to different QoS requirements, so that the terminal can determine the condition switching conditions based on the QoS requirements and determine whether to perform condition switching.

[0200] Optionally, each of the at least two sets of condition switching conditions is associated with a QoS list, which may contain a QoS identifier or a QoS ID.

[0201] In some embodiments, the first information includes the transmission conditions of the first uplink signal;

[0202] The transmission conditions for the first uplink signal include the serving cell signal quality threshold.

[0203] In this embodiment, the terminal can obtain channel quality information based on at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell, location information of at least one cell, base station or TRP, a cell list associated with at least one region, a cell list associated with the target scene, and the terminal's location information. The terminal can also determine whether to send a first uplink signal based on the obtained channel quality information and the first uplink signal transmission conditions.

[0204] For example, if the signal quality of the serving cell obtained based on the first information is higher than the serving cell signal quality threshold, the terminal sends a first uplink signal.

[0205] In some embodiments, the first information includes at least two sets of transmission conditions for the first uplink signal;

[0206] Among them, different sets of the first uplink signal transmission conditions in the at least two sets of the first uplink signal transmission conditions correspond to different QoS requirements.

[0207] In this embodiment, the transmission conditions of different sets of first uplink signals in at least two sets of first uplink signal transmission conditions correspond to different QoS requirements, so that the terminal can determine the transmission conditions of the first uplink signal based on the QoS requirements, and determine whether to transmit the first uplink signal.

[0208] Optionally, each of the at least two sets of transmission conditions for the first uplink signal is associated with a QoS list, which may contain a QoS identifier or a QoS ID.

[0209] In some embodiments, the first information includes cell reselection related information;

[0210] The cell reselection related information includes neighbor cell measurement initiation conditions, high-priority cell reselection decision criteria, R criteria, and low-priority cell reselection decision criteria; such as cell priority, cell sub-priority, low-priority RSRQ reselection threshold for serving frequency, high-priority RSRQ reselection threshold for inter-frequency frequency, high-priority RSRP reselection threshold for inter-frequency frequency, low-priority RSRQ reselection threshold for inter-frequency frequency, and low-priority RSRP reselection threshold for inter-frequency frequency, etc.

[0211] In this embodiment, the terminal can obtain channel quality information based on at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell, location information of at least one cell, base station or TRP, a cell list associated with at least one region, a cell list associated with the target scenario, and the terminal's location information. The terminal then determines whether to perform cell reselection based on the obtained channel quality information and cell reselection related information (such as cell reselection conditions).

[0212] Optionally, the terminal may obtain the channel quality information of the serving cell and the channel quality information of neighboring cells based on the first information, and combine the serving cell priority information or neighboring cell priority information and cell reselection related parameters to determine whether to perform cell reselection.

[0213] Optionally, the terminal may obtain the channel quality information of the serving cell and the channel quality information of the neighboring cells based on the first information, and combine the serving cell priority information or the neighboring cell priority information, cell reselection related parameters, the transmit power of the serving cell or the neighboring cell, and the network operating mode (such as energy-saving mode or non-energy-saving mode) to determine whether to perform cell reselection.

[0214] In some embodiments, the first information includes at least two sets of cell reselection conditions;

[0215] Among them, different sets of cell reselection conditions in the at least two sets of cell reselection conditions correspond to different QoS requirements; or, a part of the at least two sets of cell reselection conditions corresponds to terminals that support channel knowledge information-assisted measurement, and another part of the at least two sets of cell reselection conditions corresponds to terminals that do not support channel knowledge information-assisted measurement.

[0216] In this embodiment, different cell reselection conditions in at least two sets of cell reselection conditions correspond to different QoS requirements, so that the terminal can determine the cell reselection conditions based on the QoS requirements and determine whether to perform cell reselection.

[0217] In this embodiment, at least one part of the two sets of cell reselection conditions corresponds to terminals that support channel knowledge information-assisted measurement, and the other part of the two sets of cell reselection conditions corresponds to terminals that do not support channel knowledge information-assisted measurement. The network-side device can configure cell reselection conditions for terminals that support channel knowledge information-assisted measurement and terminals that do not support channel knowledge information-assisted measurement, thereby optimizing cell reselection.

[0218] Optionally, each of the at least two sets of cell reselection conditions is associated with a QoS list, which may contain a QoS identifier or a QoS ID.

[0219] In some embodiments, the above-described S220 may specifically include:

[0220] The terminal obtains channel quality information based on the first information;

[0221] The terminal performs the first operation based on the channel quality information and the channel quality measurement result obtained by measuring the reference signal.

[0222] In this embodiment, to improve measurement reliability, the terminal can make a first operation-related decision based on the acquired channel quality information and the channel quality measurement result obtained through the measurement reference signal. Compared to scenarios without channel knowledge information, scenarios that support channel knowledge information can use a longer measurement period, minimizing terminal measurements while ensuring the reliability of the measurement results. For example, the network side configures different measurement signal periods for terminals with different capabilities. Alternatively, compared to terminals without channel knowledge information, terminals that support channel knowledge information can use a longer measurement period, minimizing terminal measurements while ensuring the reliability of the measurement results. For example, the network side configures different measurement signal periods for terminals with different capabilities.

[0223] In some embodiments, the terminal performs joint filtering based on the channel quality information and the channel quality measurement results obtained by measuring the reference signal;

[0224] The terminal performs the first operation based on the joint filtering result.

[0225] In some embodiments, the wireless communication method 200 further includes:

[0226] The terminal reports its capability information;

[0227] The capability information is used to indicate whether the terminal supports channel knowledge-based assisted measurement.

[0228] In this embodiment, the terminal can report whether it supports channel knowledge information-assisted measurement, so that the network-side device can configure or indicate the above-mentioned first information in a targeted manner, or the network-side device can configure cell reselection conditions in a targeted manner.

[0229] For example, prior to S210 above, the terminal reports the capability information.

[0230] Optionally, the capability information can be carried by at least one of the following:

[0231] RRC signaling, Uplink Control Information (UCI), MAC CE signaling.

[0232] In some embodiments, the wireless communication method 200 further includes:

[0233] The terminal sends the first uplink signal when it determines that it will send the first uplink signal.

[0234] Optionally, the first uplink signal can be carried by at least one of the following:

[0235] RRC signaling, UCI, MAC CE signaling, reference signal.

[0236] The terminal-side embodiments of this application have been described in detail above with reference to Figure 2. The network-side embodiments of this application have been described in detail below with reference to Figure 3. It should be understood that the network-side embodiments correspond to the terminal-side embodiments, and similar descriptions can be referred to the terminal-side embodiments.

[0237] Figure 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of this application. As shown in Figure 3, the wireless communication method 300 may include at least some of the following:

[0238] S310, the network-side device sends the first information to the terminal;

[0239] The first information is related to the first operation performed by the terminal;

[0240] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or TRP, a list of cells associated with at least one region, and a list of cells associated with the target scenario.

[0241] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0242] It should be understood that Figure 3 illustrates the steps or operations of the wireless communication method 300, but these steps or operations are merely examples, and other operations or variations of the operations shown in Figure 3 may also be performed in this application.

[0243] In this embodiment, the network-side device sends first information to the terminal, wherein the first information is related to the first operation performed by the terminal. Accordingly, the terminal performs the first operation based on the first information. Compared with performing the first operation based on the measurement reference signal, this embodiment can be applied to all terminals in the cell without performing periodic reference signal detection, or using a longer period for signal detection, thereby effectively reducing terminal measurements and increasing the continuous sleep time of the terminal, thereby reducing the power consumption of the terminal.

[0244] The location information of at least one cell, base station, or TRP described in the embodiments of this application can be understood as the location information of at least one cell, or the location information of at least one base station, or the location information of at least one TRP.

[0245] In some embodiments, the first information may be carried at least by:

[0246] System messages, RRC signaling, DCI, MAC CE signaling.

[0247] In some embodiments, the first information is related to at least one of the following:

[0248] Path loss, channel gain, RSRP, shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI.

[0249] Optionally, the multipath information may include, but is not limited to, at least one of the following:

[0250] Path delay, path power, phase, angle.

[0251] In this embodiment of the application, the first information being related to the channel knowledge information can be understood as the channel knowledge information being obtained or predicted based on the first information.

[0252] In some embodiments, the first uplink signal includes, but is not limited to, at least one of the following:

[0253] Cell handover request, uplink positioning reference signal, on-demand measurement signal trigger request, SRS.

[0254] In some embodiments, at least some of the channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; and / or,

[0255] The at least one set of channel knowledge maps, at least some of which are different sets of channel knowledge maps, are associated with different base stations, TRPs, cells, regions, grids, or radio frequency grids.

[0256] In some embodiments, the at least partial channel knowledge map satisfies at least one of the following:

[0257] Each set of channel knowledge maps in the at least partial channel knowledge maps contains channel information for at least two locations within the associated frequency points or frequency domain range;

[0258] Each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for at least two locations within an associated base station, TRP, cell, or area; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated grid or radio frequency grid; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated area or at least two sub-areas within an area.

[0259] In some embodiments, the channel knowledge map of each of the at least one cell contains channel information for at least two locations within the corresponding cell.

[0260] In some embodiments, the channel knowledge map includes, but is not limited to, at least one of the following: channel gain map, channel shadow map, channel path map, line-of-sight link probability map, and dynamic channel knowledge map.

[0261] In some embodiments, the environmental information includes, but is not limited to, at least one of the following: radio map, perceived environmental point cloud information, and 3D map.

[0262] In some embodiments, the at least one cell includes at least one of the following:

[0263] The service area includes one or more neighboring communities.

[0264] In some embodiments, the at least one cell is a cell applicable to the terminal within a first time period predicted by the terminal, or the at least one cell is a cell applicable to the terminal within a first time period predicted by the network-side device, or the at least one cell is a cell applicable to the terminal within a first time period predicted by other network-side devices.

[0265] In some embodiments, the at least one region is a region applicable to the terminal within a first time period predicted by the terminal, or the at least one region is a region applicable to the terminal within a first time period predicted by the network-side device, or the at least one region is a region applicable to the terminal within a first time period predicted by other network-side devices.

[0266] In some embodiments, the target scenario is a scenario applicable to the terminal within a first time period predicted by the terminal, or the target scenario is a scenario applicable to the terminal within a first time period predicted by the network-side device, or the target scenario is a scenario applicable to the terminal within a first time period predicted by other network-side devices.

[0267] In some embodiments, the first information includes at least two sets of condition switching conditions;

[0268] Among them, different sets of condition switching conditions in the at least two sets of condition switching conditions correspond to different QoS requirements.

[0269] In some embodiments, the first information includes at least two sets of transmission conditions for the first uplink signal;

[0270] Among them, different sets of the first uplink signal transmission conditions in the at least two sets of the first uplink signal transmission conditions correspond to different QoS requirements.

[0271] In some embodiments, the first information includes at least two sets of cell reselection conditions;

[0272] Among them, different sets of cell reselection conditions in the at least two sets of cell reselection conditions correspond to different QoS requirements; or, a part of the at least two sets of cell reselection conditions corresponds to terminals that support channel knowledge information-assisted measurement, and another part of the at least two sets of cell reselection conditions corresponds to terminals that do not support channel knowledge information-assisted measurement.

[0273] In some embodiments, the network-side device may configure cell reselection conditions for terminals that support channel knowledge information-assisted measurement and terminals that do not support channel knowledge information-assisted measurement.

[0274] In some embodiments, the wireless communication method 300 further includes:

[0275] The network-side device receives capability information from the terminal, wherein the capability information is used to indicate whether the terminal supports channel knowledge-based assisted measurement.

[0276] In some embodiments, the wireless communication method 300 further includes:

[0277] The network-side device receives the first uplink signal from the terminal.

[0278] In this embodiment, the network-side device can configure or indicate the first information in a targeted manner based on whether the terminal supports channel knowledge information-assisted measurement, or configure cell reselection conditions in a targeted manner.

[0279] For example, prior to S310 above, the network-side device receives the capability information from the terminal.

[0280] Optionally, the capability information can be carried by at least one of the following:

[0281] RRC signaling, UCI, MAC CE signaling.

[0282] Optionally, the first uplink signal can be carried by at least one of the following:

[0283] RRC signaling, UCI, MAC CE signaling, reference signal.

[0284] The technical solution of this application is described in detail below through specific embodiments.

[0285] Example 1, taking the first operation as making a cell handover decision as an example.

[0286] In this embodiment, the network-side device provides first information to the terminal, wherein the first information can be used for cell handover, and the terminal makes a cell handover decision based on the first information provided by the network-side device, such as triggering cell handover, or triggering the sending or receiving of certain auxiliary information, wherein the auxiliary information is related to cell handover.

[0287] Optionally, the first information is related to channel knowledge information, which includes, but is not limited to, at least one of the following:

[0288] Path loss, channel gain, RSRP, shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI.

[0289] Optionally, the first information is related to at least one of the following:

[0290] Path loss, channel gain, RSRP, shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI.

[0291] In Example 1, the terminal can obtain channel quality information based on the first information provided by the network-side device and the terminal location information, and then perform operations related to cell handover based on the obtained channel quality information.

[0292] Specifically, based on different processing / operations, there are the following sub-examples 1, 2, and 3.

[0293] Sub-example 1

[0294] In this sub-example, the terminal obtains channel quality information based on the first information provided by the network-side device and the terminal's location information, and compares it with the signal quality threshold for cell handover issued by the network-side device to determine whether cell handover should be triggered. When the cell handover conditions are met, the terminal sends a cell handover request.

[0295] As shown in Figure 4, sub-example 1 may specifically include some or all of S1-1 to S1-3.

[0296] S1-1. The network-side device sends first information to the terminal, wherein the first information can be used for cell handover.

[0297] Optionally, the network-side device may send the first information to the terminal via RRC signaling.

[0298] Optionally, the first information includes at least one of the following:

[0299] 1) At least one channel knowledge map

[0300] Optionally, different sets of channel knowledge maps in at least a portion of the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; and / or, different sets of channel knowledge maps in at least a portion of the at least one set of channel knowledge maps are associated with different base stations or TRPs or cells or regions or grids or radio frequency grids.

[0301] Optionally, the at least partial channel knowledge map satisfies at least one of the following:

[0302] Each set of channel knowledge maps in the at least partial channel knowledge maps contains channel information for at least two locations within the associated frequency points or frequency domain range;

[0303] Each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for at least two locations within an associated base station, TRP, cell, or area; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated grid or radio frequency grid; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated area or at least two sub-areas within an area.

[0304] Optionally, the channel knowledge map includes, but is not limited to, at least one of the following:

[0305] Channel Gain Map (CGM), Channel Shading Map (CSM), Channel Path Map (CPM), Line-of-Sight Link Probability Map, Dynamic Channel Knowledge Map.

[0306] The channel knowledge map includes channel information for different geographical regions or geographical locations and their associated information. The channel information may include one or more of the following: path loss, channel gain, signal reception quality (RSRP), shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information (path delay, path power, phase, angle, etc.), Rice factor, angle spread, and delay spread. Optionally, the channel information may also include CSI information, such as a periodic CSI change model. For example, in a smart factory scenario, the environment is relatively fixed, the driving path is relatively fixed, and the CSI change is also relatively fixed.

[0307] For example, the channel knowledge map includes a channel gain map, which contains channel gain information for different geographical regions or geographical locations and their associated channel gain information.

[0308] For another example, the channel knowledge map includes a line-of-sight link probability map, which contains the distribution and probability of LOS in different geographical areas, or the distribution and probability of LOS in different geographical locations.

[0309] Similarly, the channel knowledge map can also be a channel shadow map, a channel path map, or a channel knowledge map containing instantaneous channel information, etc.

[0310] Optionally, the angle information of the channel knowledge information can be the angle information of a few paths, such as the relevant information of the N strongest paths. For example, for a terminal in a certain geographical location, the channel information obtained from the channel knowledge map includes: the path power, phase, vertical departure angle (zenith AoD), and horizontal departure angle (azimuth AoD) of the three strongest paths.

[0311] It should be noted that the network side directly sends the channel knowledge map, and the terminal can directly obtain the corresponding channel knowledge based on the location information.

[0312] 2) Environmental information of at least one residential area

[0313] Optionally, the at least one cell includes at least one of the following: serving cell, one or more neighboring cells.

[0314] Optionally, the environmental information includes, but is not limited to, at least one of the following:

[0315] Radio map, sensing environmental point cloud information, 3D map.

[0316] The environmental information may include perceived environmental point cloud information, such as point cloud information reconstructed from the physical world, such as the physical world of a digital twin; or the environmental information may include radio maps, such as three-dimensional digital maps, representing information such as the height, width, length, and location of buildings in this way; or the environmental information may include 3D maps, which can represent information such as the height, width, length, and location of objects in the environment; the environmental information may also include the electromagnetic reflection coefficients of objects, building surfaces, point clouds, etc.

[0317] It should be noted that after obtaining the environmental information of the at least one cell, the terminal reconstructs the channel information of the at least one cell based on the environmental information of the at least one cell, combined with ray tracing or other methods, or reconstructs the channel knowledge map of the at least one cell.

[0318] 3) A list of cells associated with at least one region

[0319] Optionally, the cell list includes at least one of the following: serving cell, one or more neighboring cells.

[0320] For example, the first information includes the association between the serving cell and the zone ID; based on the zone ID, the geographical area corresponding to the zone ID can be determined, and the serving cell associated with it can be determined; the zone ID can be obtained based on the area size configured on the network side and the protocol predefined calculation method.

[0321] 4) List of cells associated with the target scenario

[0322] Optionally, the target scenario includes, but is not limited to, at least one of the following:

[0323] Underground parking garages, tunnels, elevators, high-speed trains, enclosed spaces, physical barriers.

[0324] Optionally, the cell list includes at least one of the following: serving cell, one or more neighboring cells.

[0325] The first information includes the association between the target scene and the list of cells.

[0326] 5) Location information of at least one cell, base station, or TRP

[0327] Optionally, the at least one cell includes at least one of the following: serving cell, one or more neighboring cells.

[0328] Optionally, the location information of the serving cell can be replaced with the location information of the base station, and the location information of the neighboring cell can be replaced with the location information of the neighboring station.

[0329] 6) Cell handover conditions

[0330] In one possible implementation, the network side configures a signal quality threshold to perform cell handover or trigger the transmission of the first uplink signal.

[0331] In another possible implementation, the network side configures a serving cell list based on region and / or object, and the terminal can perform cell handover or trigger the transmission of the first uplink signal based on this information.

[0332] 7) Measurement signal configuration

[0333] The measurement signal configuration information used for cell handover includes one or more of the following: measurement reference signal transmission power, measurement reference signal transmission period.

[0334] It should be noted that the aforementioned channel knowledge map contains channel information for different geographical regions or geographical locations and their associated information. In other words, the terminal needs to query the channel knowledge map based on its location to obtain the corresponding channel knowledge information. The terminal location serves as an index to the channel knowledge map, either directly or indirectly.

[0335] Optionally, the input index of the Channel Knowledge Map (CKM) is UE location-related information, which can be: 2D location range, or 3D location range, or location representation parameters based on polar coordinates such as angle and distance, or UE physical location information (such as latitude and longitude), or UE altitude information.

[0336] Optionally, the input index of the Channel Knowledge Map (CKM) is indirect information related to the UE's location, where the indirect information corresponds to terminal measurements for different positioning methods, such as the time difference of reception of the positioning reference signal and the angle of arrival of the signal.

[0337] Specifically, this includes positioning measurements corresponding to various positioning methods, such as:

[0338] Downlink (DL) positioning reference signals (PRS) received power (DL PRS-RSRP);

[0339] Downlink relative signal time difference (DL RSTD);

[0340] UE Rx–Tx time difference;

[0341] Uplink relative arrival time (UL Relative Time of Arrival, TUL-RTOA);

[0342] Base station-side receive-transmit time difference (gNB Rx–Tx time difference);

[0343] UL Angle of Arrival (UL AoA);

[0344] Uplink (UL) Sounding Reference Signal (SRS) Received Power (UL SRS-RSRP);

[0345] Downlink PRS reference signal received path power (DL PRS-RSRPP);

[0346] Uplink SRS reference signal received path power (UL SRS reference signal received path power, UL SRS-RSRPP);

[0347] Downlink reference signal carrier phase (DL RSCP);

[0348] Downlink reference signal carrier phase difference (DL RSCPD);

[0349] Uplink reference signal carrier phase (UL RSCP).

[0350] It is important to note that the Channel Knowledge Map (CKM) can be stored on the terminal side or the network side. In scenarios where the CKM is stored on the terminal side, the terminal can retrieve the corresponding channel information by querying the CKM based on its acquired terminal location information (such as downlink positioning-related measurements). In scenarios where the CKM is stored on the network side, the network can retrieve the UE's corresponding channel information by querying the CKM based on its acquired terminal location information (such as location information reported by the terminal or obtained through uplink positioning-related measurements). Therefore, the different positioning methods mentioned above include relevant measurements used for both downlink and uplink positioning.

[0351] Optionally, in addition to geographic location information, the aforementioned location information may also include the UE's orientation or attitude, for example, obtained by the terminal through an inertial measurement unit, or through accelerometers and gyroscopes on the terminal side.

[0352] Optionally, in addition to geographic location information, the above location information may also include terminal movement information, including terminal movement speed and terminal movement direction. Optionally, by combining with artificial intelligence (AI), terminal movement information can also be used to predict the future location of the terminal.

[0353] S1-2. The terminal obtains its location information.

[0354] The location of the terminal can be obtained using 3GPP-based technology or non-3GPP-based technology; no specific limitation is made in this embodiment.

[0355] The terminal's location information can be obtained based on one or more of the following methods in combination: network-assisted GNSS methods; LTE signal-based Time Difference of Arrival (OTDOA) positioning; LTE signal-based Enhanced Cell Identification (ID) method; WLAN positioning; Bluetooth positioning; Terrestrial Beacon System (TBS) positioning; sensor-based methods (barometric sensor, motion sensor); NR signal-based Enhanced Cell ID (E-CID); NR signal-based Multi-Round-Trip (Multi-RTT) positioning; NR signal-based Downlink Departure Angle (DL-AoD); NR signal-based Downlink Time Difference of Arrival (DL-TDOA); NR signal-based Uplink Time Difference of Arrival (UL-TDOA); NR signal-based Uplink Angle of Arrival (UL-AoA); Sidelink (SL) positioning and ranging based on sidelink signals (Sidelink Round-Trip (SL-RTT); Sidelink Angle of Arrival); Ultra Wideband (UWB) positioning... Positioning methods include: band (UWB) positioning; radar-based positioning; sensing signal-based positioning; laser-based positioning; and positioning based on accelerometers and gyroscopes or barometers (for measuring altitude).

[0356] Whether a terminal acquires location information depends on its implementation. In one possible implementation, the terminal supports cell handover based on channel knowledge information, and upon receiving the first information sent by the network side, the terminal can acquire its location information in the aforementioned manner. In another possible implementation, the acquisition of the terminal's location information does not depend on the acquisition of the aforementioned first information. For example, in a drone scenario, the terminal always uses GPS to acquire its real-time location. In this scenario, the acquisition of location information is not triggered by receiving the first information.

[0357] S1-3. Based on the terminal's location information and the aforementioned first information, trigger the transmission of the first uplink signal.

[0358] Based on the received first information and the terminal's location information, the terminal performs cell handover and triggers the transmission of the first uplink signal (such as a cell handover request).

[0359] In some implementations, the first information provided by the network side includes at least one set of channel knowledge maps. Specifically, based on at least one set of channel knowledge maps and the terminal's location information, the terminal performs cell handover and triggers the transmission of the first uplink signal (such as a cell handover request).

[0360] For example, the first information provided by the network side includes a channel knowledge map, such as a channel gain map. Based on the acquired terminal location and the channel gain map, the terminal obtains the channel information of its current location, such as the channel gain of the current location, and / or the path loss value and shadow fading information of the current location. Based on the reference transmit power provided by the network side and the channel information obtained by the terminal based on the channel knowledge map, the terminal evaluates or obtains channel quality information.

[0361] For example, the first information provided by the network side includes a channel knowledge map of the current serving cell. Optionally, it may also include channel knowledge maps of one or more neighboring cells, as well as the reference transmit power of one or more neighboring cells. In other words, the method for obtaining channel quality information of the serving cell based on the channel knowledge map described in this embodiment is also applicable to neighboring cells, and the terminal obtains channel quality information of both the serving cell and neighboring cells.

[0362] For example, based on the auxiliary information provided by the channel knowledge map, the terminal obtains the channel quality information of the serving cell (and neighboring cells). According to the signal quality threshold configured in the first information, it determines whether to trigger a cell handover or whether to trigger the transmission of a first uplink signal. The signal quality threshold configured in the first information can be a serving cell signal quality threshold and / or a neighboring cell signal quality threshold. For instance, if the first information includes a serving cell signal quality threshold and a neighboring cell signal quality threshold, and the terminal finds that the signal quality of the serving cell is lower than the serving cell signal quality threshold, and the signal quality of the neighboring cell is higher than the neighboring cell signal quality threshold, the terminal is triggered to send a first uplink signal (the first uplink signal is used to request a cell handover; optionally, it also carries a target cell identifier).

[0363] In some implementations, the first information provided by the network side includes environmental information of at least one cell. Specifically, based on the environmental information of at least one cell and the terminal's location information, the terminal performs cell handover and triggers the transmission of a first uplink signal (such as a cell handover request).

[0364] The first information provided by the network side includes point cloud information containing environmental information, such as point cloud data containing an environmental map, or point cloud data containing a radio environment map.

[0365] Optionally, the first information may also include the location information of the serving cell or the location information of the base station. Based on the acquired terminal location, combined with the location information of the serving cell or the base station and the radio environment map information, the terminal performs channel modeling to obtain channel information between the serving cell and the UE. For example, the channel modeling may be based on ray tracing. Based on the reference transmit power provided by the network side and the channel information obtained from the radio environment map reconstruction, the terminal evaluates or obtains channel quality information.

[0366] Optionally, the first information provided by the network side includes the environmental information of the serving cell. Optionally, it may also include the environmental information of one or more neighboring cells, the location information of the base station, and the reference transmit power of one or more neighboring cells. If the terminal reconstructs and obtains the channel information between itself and the serving cell and neighboring cells, it is used for cell handover evaluation.

[0367] Optionally, the terminal may make a decision based on the channel information obtained from the reconstruction, combined with the transmit power of the serving cell and / or the transmit power of neighboring cells, and the signal quality threshold of the serving cell and / or the signal quality threshold of the neighboring cells configured in the first information, and trigger the transmission of the first uplink signal.

[0368] In some implementations, the first information provided by the network side includes a list of cells associated with at least one region. Specifically, based on the list of cells associated with at least one region and the terminal's location information, the terminal performs a cell handover, triggering the transmission of a first uplink signal (such as a cell handover request).

[0369] The first information provided by the network side includes a list of cells associated with at least one region (the signaling form may be: each serving cell is associated with a set of zone IDs, or each zone ID is associated with one or more cells). The terminal determines the zone ID based on its current location (and / or predicted location) and selects the serving cell associated with that zone ID. When a serving cell change occurs, a first uplink signal is triggered.

[0370] For example, based on the first information provided by the network side, if the serving cell for the terminal in the previous area A was cell 1, and the serving cell for the current area B is cell 2, then the terminal is triggered to send the first uplink signal; or, if the terminal is currently in area A, and based on the terminal's mobility information it is predicted that the terminal may move to area B, then the terminal is triggered to send the first uplink signal. Specifically, this can be applied to the network side storing a channel knowledge map. Correspondingly, the network side obtains channel information for different geographical areas, and can provide the serving cell corresponding to that area.

[0371] In some implementations, the first information provided by the network side includes a list of cells associated with the target scenario. Specifically, based on the list of cells associated with the target scenario and the terminal's location information, the terminal performs cell handover and triggers the transmission of the first uplink signal (such as a cell handover request).

[0372] The first information provided by the network side includes a list of cells associated with the target scene. The terminal can identify the target scene based on perception, tags, measurement, AI unit prediction, etc., and trigger the transmission of the first uplink signal or cell handover according to the received list of cells associated with the target scene.

[0373] For example, the target scene could be a tunnel scene, an object occlusion scene, etc. After the terminal identifies the target scene, it selects the cell associated with that target scene.

[0374] Optionally, the terminal can predict the list of applicable cells and the corresponding time window in the future based on the terminal's moving speed, moving direction, current location, etc., and report the list of applicable cells and the corresponding time window in the future.

[0375] Optionally, the terminal can determine the list of cells expected to be used in the future and the corresponding time window based on historical data or AI unit prediction, and report the list of cells expected to be used in the future and the corresponding time window.

[0376] Optionally, the target scene can be identified / distinguished by changes in the signal, such as a sharp drop in signal quality.

[0377] Optionally, the implementation methods in this sub-example can be used in combination. For example, the terminal determines whether to trigger the transmission of the first uplink signal based on its current geographical region and the co-serving cell of the detected target scene.

[0378] In this sub-example, the terminal determines whether to perform a cell handover based on the channel quality information estimated by the channel knowledge map. For scenarios requiring a handover of the serving cell, the terminal sends a first uplink signal. This first uplink signal can send a cell handover request, and optionally, it can also include target cell information, such as the physical cell ID of the target cell. Alternatively, when the terminal determines that a cell handover is necessary, it initiates random access in the target cell, indicating the source cell information through message 3 (Msg3) or message A (MsgA) during the random access process. That is, the first uplink signal can be sent after initiating random access in the target cell. After receiving the first uplink signal, the network side sends the corresponding configuration information of the target cell to the terminal, for example, through RRC reconfiguration or other message configuration.

[0379] Optionally, the signal quality threshold, switching conditions, or transmission conditions of the first uplink signal configured in the first information can be configured in multiple sets on the network side, each corresponding to different QoS requirements. For example, each configuration contains an associated QoS list, which may contain a QoS identifier or QoS ID.

[0380] It's important to note that while channel knowledge helps reduce terminal measurements, its accuracy is relatively lower. Therefore, to improve measurement reliability, terminals can make cell handover decisions based on both acquired channel quality information and measurement reference signals. Compared to scenarios / terminals that don't rely on channel knowledge, those that do can use longer measurement periods, minimizing terminal measurements while ensuring the reliability of the results. For example, the network can configure different measurement signal periods for terminals with different capabilities.

[0381] Sub-example 2

[0382] In this sub-example, the terminal obtains channel quality information based on the first information provided by the network-side device and the terminal's location information, and compares it with the signal quality threshold for cell handover issued by the network-side device to determine whether to trigger the transmission of a first uplink signal (such as an on-demand measurement signal trigger request). When the condition is met, the terminal sends an on-demand measurement signal trigger request, performs measurements and reports based on the measurement signals sent by the network-side device, and executes the handover according to the handover command issued by the network.

[0383] As shown in Figure 5, sub-example 2 may specifically include some or all of S2-1 to S2-4.

[0384] The scheme of Sub-Example 2 is generally the same as that of Sub-Example 1 above. The difference is that in Sub-Example 1, the terminal triggers a cell handover request based on the channel quality evaluated by the first information and carries the cell handover request through the first uplink signal; while in Sub-Example 2, the terminal triggers the network side to send an on-demand measurement signal based on the channel quality evaluated by the first information, the terminal performs measurement based on the on-demand measurement signal sent by the network side, and triggers the corresponding measurement report (periodic measurement report or event-based measurement report), and the network side sends a cell handover command based on the received measurement report.

[0385] Accordingly, compared to the above sub-example 1, the corresponding configuration information and transmission signals will be different:

[0386] The first information contains a signal quality threshold or channel gain threshold that triggers the transmission of the first uplink signal;

[0387] The first information includes the region and / or target scenario used to trigger the transmission of the first uplink signal;

[0388] The first uplink signal is used to request the transmission of on-demand measurement signals.

[0389] Sub-example 3

[0390] In this sub-example, the terminal obtains channel quality information based on the first information provided by the network-side device and the terminal's location information, and compares it with the signal quality threshold for cell handover issued by the network-side device to determine whether to trigger the transmission of the first uplink signal (such as an uplink positioning reference signal).

[0391] The scenario corresponding to Sub-Example 3 is that both the terminal side and the network side store channel knowledge information. The network side determines whether to trigger cell handover or issue a handover command based on the channel knowledge information and the terminal location.

[0392] As shown in Figure 6, sub-example 3 may specifically include some or all of S3-1 to S3-3.

[0393] Sub-example 3 is generally the same as Sub-example 1, except that in Sub-example 1, the terminal triggers a cell handover request based on the channel quality assessed by the first information (such as channel knowledge information) and carries the cell handover request through the first uplink signal; while in this sub-example, the terminal assesses the channel quality based on the first information (such as channel knowledge information) and triggers the transmission of the first uplink signal (such as an uplink positioning reference signal) according to the threshold configured on the network side. The network-side device determines whether to perform cell handover or issue a handover command based on the stored channel knowledge information and the terminal's location information obtained from the uplink positioning reference signal sent by the terminal.

[0394] Accordingly, compared to the above sub-example 1, the corresponding configuration information and transmission signals will be different:

[0395] The first information contains a signal quality threshold or channel gain threshold that triggers the transmission of the first uplink signal;

[0396] The first information includes the region and / or target scene used to trigger the first uplink signal;

[0397] The first uplink signal is the uplink positioning reference signal.

[0398] Optionally, the transmission of the uplink positioning reference signal can be replaced by the reporting of the terminal's location information. That is, when the transmission conditions of the first uplink signal are met, the terminal reports its location information, which can be a direct geographic location or measurement information used to determine the geographic location.

[0399] Optional, geographic location: such as latitude and longitude information, 2D location range, 3D location range, angle and distance, etc.

[0400] Measurement information to determine geographical location: Measurements from different positioning methods, such as the reception time difference of downlink positioning reference signals in different cells, and the angle of arrival of the positioning reference signals.

[0401] Optionally, the transmission of the uplink positioning reference signal can also be replaced by a request to transmit the uplink positioning reference signal, that is, the terminal requests the network side to configure the uplink positioning reference signal or requests the network side to activate the configured uplink positioning reference signal.

[0402] Optionally, the uplink positioning reference signal can also be transmitted in two steps. For example, the terminal sends a first signal to indicate the transmission of the second signal (uplink positioning reference signal), and then transmits the second signal (uplink positioning reference signal) at the same time as the second signal is transmitted.

[0403] Optionally, for the above sub-examples 1 to 3, to improve reliability, the terminal can make cell handover-related decisions based on the estimation results of channel knowledge information combined with long-period signal measurement results. For example, the terminal can perform layer 3 (L3) filtering based on the channel knowledge information estimation results and the signal measurement results, and trigger the transmission of the first uplink signal based on the filtered result.

[0404] The solution in Example 1 allows the terminal to use channel knowledge information sent by the network or reconstructed by the terminal, combined with the channel signal quality obtained from the terminal's location, to make cell handover-related decisions, reducing terminal measurements, increasing terminal sleep time, and helping to further reduce terminal power consumption.

[0405] Example 2, taking the first operation as an example of condition switching decision.

[0406] In this embodiment, the network-side device provides the terminal with first information, which is related to channel knowledge information. The first information can be used for conditional handover. Based on the first information provided by the network-side device and conditional handover-related configurations (neighbor cell configuration, conditional handover triggering conditions, etc.), the terminal performs cell handover based on the channel knowledge information and terminal location information provided by the network side.

[0407] Optionally, the channel knowledge information includes, but is not limited to, at least one of the following:

[0408] Path loss, channel gain, RSRP, shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI.

[0409] The specific process of Example 2 can be shown in Figure 7.

[0410] The scheme in Example 2 is generally the same as that in Example 1 above, except that the first information provided by the network side includes conditional handover related configurations, which include:

[0411] Handover conditions include serving cell signal quality threshold, target cell signal quality threshold, or target cell signal quality offset value compared to serving cell; or handover associated with at least one area; or handover associated with a target scenario.

[0412] Configuration information for the target community.

[0413] In addition, the difference from the above embodiment 1 is that when the conditional handover conditions are met, the terminal initiates a cell handover in the target cell, such as initiating random access in the target cell or sending an RRC reconfiguration completion message.

[0414] Similar to Embodiment 1 above, the network side sends first information to the terminal via RRC signaling. The first information is related to conditional handover. The first information includes one or more of the following: at least one set of channel knowledge maps, environmental information of at least one cell, a list of cells associated with at least one region, a list of cells associated with the target scenario, the location of the serving cell base station, the location of the target cell base station, and conditional handover conditions, target cell configuration, transmit power of the serving cell, and transmit power of the target cell.

[0415] Specifically, the terminal determines whether to switch to the target cell based on the first information and the terminal location information, combined with the handover conditions sent by the network side.

[0416] In some implementations, the first information provided by the network side includes at least one set of channel knowledge maps. Specifically, the terminal determines whether to hand over to the target cell based on at least one set of channel knowledge maps, the terminal's location information, and the handover conditions sent by the network side.

[0417] For example, the first information provided by the network side includes a channel knowledge map, such as a channel gain map. Based on the acquired terminal location and the channel gain map, the terminal obtains the channel information of its current location, such as the channel gain of the current location, and / or the path loss value and shadow fading information of the current location. Based on the reference transmit power provided by the network side and the channel information obtained by the terminal based on the channel knowledge map, the terminal evaluates or obtains channel quality information.

[0418] For example, the first information provided by the network side includes a channel knowledge map of the current serving cell, and optionally, also includes channel knowledge maps of one or more target cells, as well as reference transmit power of one or more target cells. In other words, the terminal obtains the signal quality of the serving cell and target cells based on the channel knowledge maps described in this embodiment.

[0419] For example, based on the auxiliary information provided by the channel knowledge map, the terminal obtains the signal quality of the serving cell and the target cell, and determines whether to hand over to the target cell according to the signal quality threshold configured in the first information. The signal quality threshold configured in the first information can be a serving cell signal quality threshold and a neighboring cell signal quality threshold, or an offset value of the neighboring cell signal quality compared to the serving cell signal quality. For instance, if the first information includes a serving cell signal quality threshold and a neighboring cell signal quality threshold, and the terminal obtains that the serving cell signal quality is lower than the threshold and the neighboring cell signal quality is higher than the threshold, the conditional handover condition is met, and the terminal initiates random access in the target cell.

[0420] In some implementations, the first information provided by the network side includes environmental information of at least one cell. Specifically, the terminal determines whether to hand over to the target cell based on the environmental information of at least one cell and the terminal's location information, combined with the handover conditions sent by the network side.

[0421] Similar to Embodiment 1 above, the first information provided by the network side includes point cloud information containing environmental information, or radio environment map information, or a 3D map. This information is used by the terminal to perform channel modeling and obtain channel information or a channel knowledge map. The terminal's behavior after obtaining the channel information is the same as in Embodiment 1 above.

[0422] In some implementations, the first information provided by the network side includes a list of cells associated with at least one region. Specifically, the terminal determines whether to hand over to the target cell based on the list of cells associated with at least one region, the terminal's location information, and the handover conditions sent by the network side.

[0423] The first information provided by the network side includes a list of cells associated with at least one region (the signaling form can be: each serving cell associated with a set of region identifiers, or each region ID associated with one or more cells). The terminal determines its region identifier based on its current location (and / or predicted location) and selects the serving cell associated with that region identifier. When a serving cell change occurs, random access is initiated in the target cell. Specifically, this can be applied to the network side storing a channel knowledge map, whereby the network side obtains channel information for different geographical regions and provides the corresponding serving cell for that region.

[0424] In some implementations, the first information provided by the network side includes a list of cells associated with the target scenario. Specifically, the terminal determines whether to hand over to the target cell based on the list of cells associated with the target scenario, the terminal's location information, and the handover conditions sent by the network side.

[0425] The first information provided by the network side includes a list of cells associated with the target scene. The terminal can identify the target scene based on perception, tags, measurement, AI unit prediction, etc., and initiate cell handover or initiate random access in the target cell according to the received list of cells associated with the target scene.

[0426] Similar to Embodiment 1 above, the various implementation methods can be used in combination.

[0427] Similar to Embodiment 1 above, to improve reliability, the terminal can make cell handover-related decisions based on the estimation results of channel knowledge information combined with long-period signal measurement results. For example, the terminal can perform L3 filtering based on the channel knowledge information estimation results and signal measurement results, and determine whether the handover conditions are met based on the filtered results.

[0428] Specifically, through the scheme in Example 2, the terminal uses the channel knowledge information sent by the network side or reconstructed by the terminal, combined with the channel quality information obtained by the terminal location, to make cell handover related decisions, reducing terminal measurements and helping to reduce terminal power consumption.

[0429] Example 3, taking the first operation as making a cell reselection decision as an example.

[0430] In this embodiment, the network-side device provides the terminal with first information, which can be used for cell reselection. The terminal obtains channel quality information based on the first information (such as channel knowledge information) provided by the network-side device and the terminal's location information, and compares it with the signal quality threshold for cell reselection issued by the network side. When the condition is met, the terminal changes the cell it is camping on.

[0431] Optionally, the first information is related to channel knowledge information, which includes, but is not limited to, at least one of the following:

[0432] Path loss, channel gain, RSRP, shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI.

[0433] Optionally, the first information is related to at least one of the following:

[0434] Path loss, channel gain, RSRP, shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information, Rice factor, angle spread, delay spread, CSI.

[0435] As shown in Figure 8, Embodiment 3 may specifically include some or all of S4-1 to S4-3.

[0436] S4-1. The network-side device sends first information to the terminal, wherein the first information can be used for cell reselection.

[0437] Optionally, the network-side device may broadcast the first information via system messages.

[0438] Optionally, the first information includes at least one of the following:

[0439] 1) At least one channel knowledge map

[0440] Optionally, different sets of channel knowledge maps in at least a portion of the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; and / or, different sets of channel knowledge maps in at least a portion of the at least one set of channel knowledge maps are associated with different base stations or TRPs or cells or regions or grids or radio frequency grids.

[0441] Optionally, the at least partial channel knowledge map satisfies at least one of the following:

[0442] Each set of channel knowledge maps in the at least partial channel knowledge maps contains channel information for at least two locations within the associated frequency points or frequency domain range;

[0443] Each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for at least two locations within an associated base station, TRP, cell, or area; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated grid or radio frequency grid; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated area or at least two sub-areas within an area.

[0444] Optionally, the channel knowledge map includes, but is not limited to, at least one of the following:

[0445] Channel Gain Map (CGM), Channel Shading Map (CSM), Channel Path Map (CPM), Line-of-Sight Link Probability Map, Dynamic Channel Knowledge Map.

[0446] The channel knowledge map includes channel information for different geographical regions or geographical locations and their associated information. The channel information may include one or more of the following: path loss, channel gain, signal reception quality (RSRP), shadow variance, shadow fading, spatial correlation matrix, AoA, AoD, multipath information (path delay, path power, phase, angle, etc.), Rice factor, angle spread, and delay spread. Optionally, the channel information may also include CSI information, such as a periodic CSI change model. For example, in a smart factory scenario, the environment is relatively fixed, the driving path is relatively fixed, and the CSI change is also relatively fixed.

[0447] For example, the channel knowledge map includes a channel gain map, which contains channel gain information for different geographical regions or geographical locations and their associated channel gain information.

[0448] For another example, the channel knowledge map includes a line-of-sight link probability map, which contains the distribution and probability of LOS in different geographical areas, or the distribution and probability of LOS in different geographical locations.

[0449] Similarly, the channel knowledge map can also be a channel shadow map, a channel path map, or a channel knowledge map containing instantaneous channel information, etc.

[0450] Optionally, the angle information of the channel knowledge information can be the angle information of a few paths, such as the relevant information of the N strongest paths. For example, for a terminal in a certain geographical location, the channel information obtained from the channel knowledge map includes: the path power, phase, vertical departure angle (zenith AoD), and horizontal departure angle (azimuth AoD) of the three strongest paths.

[0451] Optionally, since cell reselection includes both intra-frequency and inter-frequency scenarios, the first information contains multiple sets of channel knowledge maps, each associated with different frequency points; for example, the network side will configure different shadow fading channel knowledge maps for frequency point 1 and frequency point 2.

[0452] 2) Environmental information of at least one residential area

[0453] Optionally, the at least one cell includes at least one of the following: serving cell (or resident cell), one or more neighboring cells.

[0454] Optionally, the environmental information includes, but is not limited to, at least one of the following:

[0455] Radio map, sensing environmental point cloud information, 3D map.

[0456] The environmental information may include perceived environmental point cloud information, such as point cloud information reconstructed from the physical world, such as the physical world of a digital twin; or the environmental information may include radio maps, such as three-dimensional digital maps, representing information such as the height, width, length, and location of buildings in this way; or the environmental information may include 3D maps, which can represent information such as the height, width, length, and location of objects in the environment; the environmental information may also include the electromagnetic reflection coefficients of objects, building surfaces, point clouds, etc.

[0457] It should be noted that after obtaining the environmental information of the at least one cell, the terminal reconstructs the channel information of the at least one cell based on the environmental information of the at least one cell, combined with ray tracing or other methods, or reconstructs the channel knowledge map of the at least one cell.

[0458] 3) A list of cells associated with at least one region

[0459] Optionally, the cell list may include at least one of the following: serving cell (or home cell), one or more neighboring cells.

[0460] For example, the first information includes the association between the serving cell (or the stationed cell) and the zone ID; based on the zone ID, the geographical area corresponding to the zone ID can be determined, and the serving cell associated with it can be determined; the zone ID can be obtained based on the area size configured on the network side and the protocol predefined calculation method.

[0461] 4) List of cells associated with the target scenario

[0462] Optionally, the target scenario includes, but is not limited to, at least one of the following:

[0463] Underground parking garages, tunnels, elevators, high-speed trains, enclosed spaces, physical barriers.

[0464] Optionally, the cell list may include at least one of the following: serving cell (or home cell), one or more neighboring cells.

[0465] The first information includes the association between the target scene and the list of cells.

[0466] 5) Location information of at least one cell, base station, or TRP

[0467] Optionally, the at least one cell includes at least one of the following: serving cell (or resident cell), one or more neighboring cells.

[0468] Optionally, the location information of the serving cell can be replaced with the location information of the base station, and the location information of the neighboring cell can be replaced with the location information of the neighboring station.

[0469] 6) Community reselection related configurations

[0470] The cell reselection-related configurations include cell reselection priority, S-criterion related parameters, R-criterion related parameters, and network operating modes (such as energy-saving mode and non-energy-saving mode).

[0471] 7) Network reference transmit power

[0472] Network reference transmit power includes the network reference transmit power of the serving cell and the network reference transmit power of neighboring cells.

[0473] S4-2. The terminal obtains its location information.

[0474] Similar to Embodiment 1 above, the location acquisition of the terminal can be based on 3GPP technology or non-3GPP technology; no specific limitation is made in this embodiment.

[0475] S4-3. Cell reselection is performed based on the terminal's location information and the first information.

[0476] Based on the first information received and the terminal's location information, the terminal obtains the signal quality of the currently camped cell and the signal quality of neighboring cells, and determines whether to change the camped cell.

[0477] In some implementations, the first information provided by the network side includes at least one set of channel knowledge maps. Specifically, based on at least one set of channel knowledge maps and the terminal's location information, the terminal obtains the signal quality of the currently camped cell and the signal quality of neighboring cells, and determines whether to change the camped cell.

[0478] Based on its current geographical location or geographical region, the terminal can obtain the channel information of the serving cell and neighboring cells through a channel knowledge map query. It can then determine whether to change the cell it is camped on by combining the serving cell priority, neighboring cell priority, the transmitting power of the serving cell, the transmitting power of the neighboring cells, the operating mode of the serving cell (e.g., energy-saving mode, non-energy-saving mode), and the operating mode of the neighboring cells (e.g., energy-saving mode, non-energy-saving mode).

[0479] Optionally, based on its current geographical location, the terminal can obtain the channel information of the serving cell and neighboring cells through a channel knowledge map query. Combining the transmit power of the serving cell and the transmit power of the neighboring cells, the terminal estimates the channel quality information for its current location. Based on the estimated channel quality information, the terminal determines whether to initiate neighbor cell measurement, i.e., it compares the estimated channel quality information with the network-configured intra-frequency reselection threshold (the serving cell's RSRP and / or RSRQ) to determine whether to initiate intra-frequency neighbor cell measurement. For same-priority and low-priority frequencies, the terminal compares the estimated channel quality information with the network-configured inter-frequency reselection threshold (the serving cell's RSRP and / or RSRQ) to determine whether to initiate neighbor cell measurement. Optionally, for high-priority frequencies, the terminal compares the estimated channel quality information with the network-configured high-priority cell reselection threshold (the serving cell's RSRP and / or RSRQ) to determine whether to initiate neighbor cell measurement.

[0480] Optionally, the terminal performs cell reselection based on the signal quality of the serving cell and the signal quality of neighboring cells obtained from the channel knowledge map.

[0481] For example, if the estimation result of a high-priority inter-frequency neighbor cell meets the high-priority cell reselection decision criteria, the criteria include: the signal quality is higher than the high-priority reselection threshold (RSRP or RSRQ) configured by the network, and other conditions are met (such as the current cell dwell time is greater than 1 second), then the cell is reselected to a high-priority inter-frequency neighbor cell.

[0482] For example, when there is no suitable high-priority inter-frequency neighbor cell, the UE reselects to a co-frequency neighbor cell or a co-priority inter-frequency neighbor cell according to the R criterion. Specifically, the signal quality of the neighbor cells is sorted according to the R criterion parameters configured on the network side and the estimated cell to be camped; the cell with the highest signal quality is selected for camping.

[0483] For example, when there are no suitable high-priority inter-frequency neighboring cells, same-frequency neighboring cells, or same-priority inter-frequency neighboring cells, the UE reselects to a low-priority inter-frequency neighboring cell according to the low-priority cell reselection decision criteria. Specifically, the UE makes a judgment based on the low-priority inter-frequency cell reselection related parameters configured on the network side and the estimated signal quality of the camping cell and neighboring cells. The low-priority inter-frequency cell reselection related parameters include one or more of the following: the serving frequency RSRQ low-priority reselection threshold, the inter-frequency frequency RSRQ low-priority reselection threshold, the serving frequency RSRP low-priority reselection threshold, and the inter-frequency frequency RSRP low-priority reselection threshold.

[0484] The above example only considers frequency priority. Optionally, other factors can be considered during cell reselection, such as network operating status, like whether it is in energy-saving mode. Cells in energy-saving mode have lower priority.

[0485] To improve reliability, the estimation results used in the judgment can be a combination of the estimation results based on channel knowledge information and the measurement results of long-period signals.

[0486] In some implementations, the first information provided by the network side includes environmental information of at least one cell. Specifically, based on the environmental information of at least one cell and the terminal's location information, the terminal obtains the signal quality of the currently camped cell and the signal quality of neighboring cells, and determines whether to change the camped cell.

[0487] Similar to Embodiment 1 above, the first information provided by the network side includes point cloud information containing environmental information, or radio environment map information, or a 3D map. This information is used by the terminal to perform channel modeling and obtain channel information or a channel knowledge map. The terminal's behavior after obtaining the channel information is the same as in Embodiment 1 above.

[0488] In some implementations, the first information provided by the network side includes a list of cells associated with at least one region. Specifically, based on the list of cells associated with at least one region and the terminal's location information, the terminal obtains the signal quality of the currently camped cell and the signal quality of neighboring cells, and determines whether to change the camped cell.

[0489] The first information provided by the network side includes a list of cells associated with at least one region (the signaling form may be: each stationing cell or serving cell is associated with a set of zone IDs). The terminal determines the zone ID based on its current location and selects the serving cell or stationing cell associated with that zone ID. When it is different from the current stationing cell, the stationing cell can be changed.

[0490] In some implementations, the first information provided by the network side includes a list of cells associated with the target scenario. Specifically, based on the list of cells associated with the target scenario and the terminal's location information, the terminal obtains the signal quality of the currently camped cell and the signal quality of neighboring cells to determine whether to change the camped cell.

[0491] The first information provided by the network side includes a list of cells associated with the target scene. The terminal can identify the target scene based on perception, tags, measurement, AI unit prediction, etc., and select the corresponding cell to camp on according to the determined target scene.

[0492] Similar to Embodiment 1 above, to improve reliability, the terminal can make cell handover-related decisions based on the estimation results of channel knowledge information combined with long-period signal measurement results. For example, the terminal can perform L3 filtering based on the channel knowledge information estimation results and signal measurement results, and make cell reselection decisions based on the filtered results.

[0493] The solution in this embodiment 3 allows the terminal to use channel knowledge information sent by the network or obtained through terminal reconstruction, combined with the terminal location to obtain channel signal quality, and determine whether to change the cell to camp on. This reduces related measurements and helps to reduce terminal power consumption.

[0494] The wireless communication method provided in this application can be executed by a wireless communication device. This application uses an example of a wireless communication device executing the wireless communication method to illustrate the wireless communication device provided in this application.

[0495] This application provides a wireless communication device. As an example, the wireless 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.

[0496] The wireless 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, etc., such as central processing units (CPUs), microprocessors, digital signal processors (DSPs), artificial intelligence (AI) processors, graphics processing units (GPUs), application-specific integrated circuits (ASICs), network processors (NPs), field-programmable gate arrays (FPGAs), 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: transceivers, pins, circuits, buses, radio frequency units, etc.

[0497] Specifically, referring to Figure 9, when the wireless communication device is a terminal or a component in a terminal, the wireless communication device 400 includes a receiving module 401 and a processing module 402.

[0498] The receiving module 401 or the processing module 402 is used to acquire the first information;

[0499] The processing module 402 is further configured to perform a first operation based on the first information;

[0500] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or transmit / receive point TRP, a cell list associated with at least one region, and a cell list associated with the target scenario.

[0501] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0502] In some embodiments, the first information is related to at least one of the following:

[0503] Path loss, channel gain, reference signal received power (RSRP), shadow variance, shadow fading, spatial correlation matrix, angle of arrival (AoA), angle of departure (AoD), multipath information, Rice factor, angle spread, delay spread, channel state information (CSI).

[0504] In some embodiments, the first uplink signal includes at least one of the following:

[0505] Cell handover request, uplink positioning reference signal, on-demand measurement signal trigger request, detection reference signal (SRS).

[0506] In some embodiments, at least some of the channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; and / or,

[0507] The at least one set of channel knowledge maps, at least some of which are different sets of channel knowledge maps, are associated with different base stations, TRPs, cells, regions, grids, or radio frequency grids.

[0508] In some embodiments, the at least partial channel knowledge map satisfies at least one of the following:

[0509] Each set of channel knowledge maps in the at least partial channel knowledge maps contains channel information for at least two locations within the associated frequency points or frequency domain range;

[0510] Each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for at least two locations within an associated base station, TRP, cell, or area; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated grid or radio frequency grid; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated area or at least two sub-areas within an area.

[0511] In some embodiments, the channel knowledge map includes at least one of the following: channel gain map, channel shadow map, channel path map, line-of-sight link probability map, and dynamic channel knowledge map;

[0512] And / or,

[0513] The environmental information includes at least one of the following: radio map, perceived environmental point cloud information, 3D map;

[0514] And / or,

[0515] The at least one cell includes at least one of the following: serving cell, one or more neighboring cells.

[0516] In some embodiments, the at least one cell is a cell applicable to the wireless communication device 400 within a first time period predicted by the wireless communication device 400, or the at least one cell is a cell applicable to the wireless communication device 400 within a first time period predicted by the network side.

[0517] And / or,

[0518] The at least one region is the region applicable to the wireless communication device 400 within a first time period predicted by the wireless communication device 400, or the at least one region is the region applicable to the wireless communication device 400 within a first time period predicted by the network side.

[0519] And / or,

[0520] The target scenario is either a scenario that the wireless communication device 400 is applicable to within a first time period predicted by the wireless communication device 400, or a scenario that the wireless communication device 400 is applicable to within a first time period predicted by the network side.

[0521] In some embodiments, the processing module 402 is specifically used for:

[0522] The first operation is performed based on the first information and the location information of the wireless communication device 400.

[0523] In some embodiments, the first operation includes acquiring channel quality information;

[0524] The processing module 402 is specifically used for:

[0525] Channel modeling is performed based on the environmental information of the at least one cell, the location information of the at least one cell, and the location information of the wireless communication device 400 to obtain the channel quality information.

[0526] In some embodiments, the location information of the wireless communication device 400 includes at least one of the following:

[0527] The geographical location of the wireless communication device 400, the virtual location of the wireless communication device 400, the geographical area of ​​the wireless communication device 400, the sub-area where the wireless communication device 400 is located, the grid where the wireless communication device 400 is located, the radio frequency grid where the wireless communication device 400 is located, the moving speed of the wireless communication device 400, the moving direction of the wireless communication device 400, the orientation of the wireless communication device 400, and the posture of the wireless communication device 400.

[0528] The virtual location of the wireless communication device 400 is a measurement quantity used for positioning of the wireless communication device 400, and the measurement quantity includes at least one of the following: time difference of arrival, round-trip delay, AoD, and AoA.

[0529] In some embodiments, the first information includes at least two sets of condition switching conditions; wherein, different sets of condition switching conditions in the at least two sets of condition switching conditions correspond to different Quality of Service (QoS) requirements.

[0530] And / or,

[0531] The first information includes at least two sets of transmission conditions for the first uplink signal; wherein, different sets of transmission conditions for the first uplink signal in the at least two sets of transmission conditions for the first uplink signal correspond to different QoS requirements;

[0532] And / or,

[0533] The first information includes at least two sets of cell reselection conditions; wherein, different sets of cell reselection conditions in the at least two sets of cell reselection conditions correspond to different QoS requirements; or, a portion of the at least two sets of cell reselection conditions corresponds to terminals that support channel knowledge information-assisted measurement, and another portion of the at least two sets of cell reselection conditions corresponds to terminals that do not support channel knowledge information-assisted measurement.

[0534] In some embodiments, the processing module 402 is specifically used for:

[0535] Obtain channel quality information based on the first information;

[0536] The first operation is performed based on the channel quality information and the channel quality measurement results obtained by measuring the reference signal.

[0537] In some embodiments, the processing module 402 is specifically used for:

[0538] Joint filtering is performed based on the channel quality information and the channel quality measurement results obtained by measuring the reference signal;

[0539] Based on the joint filtering result, perform the first operation.

[0540] In some embodiments, the wireless communication device 400 further includes:

[0541] The transmitting module 403 is used to report capability information, wherein the capability information is used to indicate whether the wireless communication device 400 supports channel knowledge-based assisted measurement.

[0542] Therefore, in this embodiment, the terminal performs a first operation based on first information; wherein the first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell, base station, or TRP, a list of cells associated with at least one region, and a list of cells associated with a target scenario; wherein the first operation includes at least one of the following: performing a cell handover decision, performing a cell reselection decision, and determining whether to send a first uplink signal. Compared to performing the first operation based on a measurement reference signal, the terminal performing the first operation based on the first information can be applied to all terminals in the cell and does not require periodic reference signal detection, or the use of a longer period for signal detection, thereby effectively reducing terminal measurements and increasing the continuous sleep time of the terminal, thus reducing the terminal's power consumption.

[0543] Specifically, referring to Figure 10, when the wireless communication device is a network-side device or a component within a network-side device, the wireless communication device 500 includes:

[0544] The sending module 501 is used to send the first information to the terminal;

[0545] The first information is related to the first operation performed by the terminal;

[0546] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or transmit / receive point TRP, a cell list associated with at least one region, and a cell list associated with the target scenario.

[0547] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0548] In some embodiments, the first information is related to at least one of the following:

[0549] Path loss, channel gain, reference signal received power (RSRP), shadow variance, shadow fading, spatial correlation matrix, angle of arrival (AoA), angle of departure (AoD), multipath information, Rice factor, angle spread, delay spread, channel state information (CSI).

[0550] In some embodiments, the first uplink signal includes at least one of the following:

[0551] Cell handover request, uplink positioning reference signal, on-demand measurement signal trigger request, detection reference signal (SRS).

[0552] In some embodiments, at least some of the channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; and / or,

[0553] The at least one set of channel knowledge maps, at least some of which are different sets of channel knowledge maps, are associated with different base stations, TRPs, cells, regions, grids, or radio frequency grids.

[0554] In some embodiments, the at least partial channel knowledge map satisfies at least one of the following:

[0555] Each set of channel knowledge maps in the at least partial channel knowledge maps contains channel information for at least two locations within the associated frequency points or frequency domain range;

[0556] Each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for at least two locations within an associated base station, TRP, cell, or area; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated grid or radio frequency grid; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated area or at least two sub-areas within an area.

[0557] In some embodiments, the channel knowledge map includes at least one of the following: channel gain map, channel shadow map, channel path map, line-of-sight link probability map, and dynamic channel knowledge map;

[0558] And / or,

[0559] The environmental information includes at least one of the following: radio map, perceived environmental point cloud information, 3D map;

[0560] And / or,

[0561] The at least one cell includes at least one of the following: serving cell, one or more neighboring cells.

[0562] In some embodiments, the at least one cell is a cell applicable to the terminal within a first time period predicted by the terminal, or the at least one cell is a cell applicable to the terminal within a first time period predicted by the wireless communication device 500, or the at least one cell is a cell applicable to the terminal within a first time period predicted by other network-side devices.

[0563] And / or,

[0564] The at least one region is the region applicable to the terminal within the first time period predicted by the terminal, or the at least one region is the region applicable to the terminal within the first time period predicted by the wireless communication device 500, or the at least one region is the region applicable to the terminal within the first time period predicted by other network-side devices.

[0565] And / or,

[0566] The target scenario is either a scenario applicable to the terminal within a first time period predicted by the terminal, or a scenario applicable to the terminal within a first time period predicted by the wireless communication device 500, or a scenario applicable to the terminal within a first time period predicted by other network-side devices.

[0567] In some embodiments, the first information includes at least two sets of condition switching conditions; wherein, different sets of condition switching conditions in the at least two sets of condition switching conditions correspond to different Quality of Service (QoS) requirements.

[0568] And / or,

[0569] The first information includes at least two sets of transmission conditions for the first uplink signal; wherein, different sets of transmission conditions for the first uplink signal in the at least two sets of transmission conditions for the first uplink signal correspond to different QoS requirements;

[0570] And / or,

[0571] The first information includes at least two sets of cell reselection conditions; wherein, different sets of cell reselection conditions in the at least two sets of cell reselection conditions correspond to different QoS requirements; or, a portion of the at least two sets of cell reselection conditions corresponds to terminals that support channel knowledge information-assisted measurement, and another portion of the at least two sets of cell reselection conditions corresponds to terminals that do not support channel knowledge information-assisted measurement.

[0572] In some embodiments, the wireless communication device 500 further includes:

[0573] The receiving module 502 is used to receive capability information from the terminal, wherein the capability information is used to indicate whether the terminal supports channel knowledge information-assisted measurement.

[0574] Therefore, in this embodiment, the network-side device sends first information to the terminal, wherein the first information is related to the first operation performed by the terminal. Accordingly, the terminal performs the first operation based on the first information. Compared with performing the first operation based on the measurement reference signal, this embodiment can be applied to all terminals in the cell without the need for periodic reference signal detection, or to use a longer period for signal detection, thereby effectively reducing terminal measurements and increasing the continuous sleep time of the terminal, thereby reducing the power consumption of the terminal.

[0575] The wireless communication device provided in this application embodiment can implement the various processes implemented in the method embodiments of Figures 2 to 8 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0576] As shown in Figure 11, this application embodiment also provides a communication device 600, including a processor 601 and a memory 602, wherein the memory 602 stores a program or instructions that can run on the processor 601.

[0577] For example, when the communication device 600 is a terminal, the program or instructions executed by the processor 601 implement the various steps of the above wireless communication method embodiments and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0578] For example, when the communication device 600 is a network-side device, the program or instructions executed by the processor 601 implement the various steps of the above-described wireless communication method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0579] This application also provides a terminal, 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 the steps in the method embodiment shown in FIG2. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal may be the wireless communication device 400 shown in FIG9.

[0580] Specifically, Figure 12 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0581] The terminal 700 includes, but is not limited to, at least some of the following components: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0582] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 710 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 12 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.

[0583] It should be understood that, in this embodiment, the input unit 704 may include a graphics processor 7041 and a microphone 7042. The graphics processor 7041 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 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 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.

[0584] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0585] The memory 709 can be used to store software programs or instructions, as well as various data. The memory 709 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 709 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 709 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0586] Processor 710 may include one or more processing units; optionally, processor 710 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 710.

[0587] In some embodiments, the radio frequency unit 701 or the processor 710 is used to acquire first information;

[0588] The processor 710 is also configured to perform a first operation based on the first information;

[0589] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or transmit / receive point TRP, a cell list associated with at least one region, and a cell list associated with the target scenario.

[0590] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0591] Therefore, in this embodiment, the terminal performs a first operation based on first information; wherein the first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell, base station, or TRP, a list of cells associated with at least one region, and a list of cells associated with a target scenario; wherein the first operation includes at least one of the following: performing a cell handover decision, performing a cell reselection decision, and determining whether to send a first uplink signal. Compared to performing the first operation based on a measurement reference signal, the terminal performing the first operation based on the first information can be applied to all terminals in the cell and does not require periodic reference signal detection, or the use of a longer period for signal detection, thereby effectively reducing terminal measurements and increasing the continuous sleep time of the terminal, thus reducing the terminal's power consumption.

[0592] 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.

[0593] This application also provides a network-side device, 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 of the method embodiment shown in FIG3. 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.

[0594] Specifically, this application embodiment also provides a network-side device, which may be the wireless communication device 500 shown in FIG10. As shown in FIG13, the network-side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84, and a memory 85. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and transmits it through the antenna 81.

[0595] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, which includes a baseband processor.

[0596] The baseband device 83 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG13. One of the chips is, for example, a baseband processor, which is connected to the memory 85 via a bus interface to call the program or instructions in the memory 85 to execute the network-side device operation shown in the above method embodiment.

[0597] The network-side device may also include a network interface 86, such as a Common Public Radio Interface (CPRI).

[0598] In some embodiments, the radio frequency device 82 is used to send first information to the terminal;

[0599] The first information is related to the first operation performed by the terminal;

[0600] The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or transmit / receive point TRP, a cell list associated with at least one region, and a cell list associated with the target scenario.

[0601] The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

[0602] In addition, the network-side device 800 of this application embodiment also includes: a program or instructions stored in a memory 85 and executable on a processor 84. The processor 84 calls the program or instructions in the memory 85 to execute the methods executed by each module shown in FIG10 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0603] Therefore, in this embodiment, the network-side device sends first information to the terminal, wherein the first information is related to the first operation performed by the terminal. Accordingly, the terminal performs the first operation based on the first information. Compared with performing the first operation based on the measurement reference signal, this embodiment can be applied to all terminals in the cell without the need for periodic reference signal detection, or to use a longer period for signal detection, thereby effectively reducing terminal measurements and increasing the continuous sleep time of the terminal, thereby reducing the power consumption of the terminal.

[0604] 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 wireless communication method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0605] The processor mentioned above is either the processor in the terminal described in the above embodiments or the processor in the network-side device. 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.

[0606] 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 wireless communication method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0607] 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.

[0608] 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 wireless communication method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0609] 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 performed by the terminal in the wireless communication method described above, and the network-side device can be used to perform the steps performed by the network-side device in the wireless communication method described above.

[0610] 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.

[0611] 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 the computer software product includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0612] 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 wireless communication method, wherein, include: The terminal obtains the first information; The terminal performs a first operation based on the first information; The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or transmit / receive point TRP, a cell list associated with at least one region, and a cell list associated with the target scenario. The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

2. The method according to claim 1, wherein, The first information is related to at least one of the following: Path loss, channel gain, reference signal received power (RSRP), shadow variance, shadow fading, spatial correlation matrix, angle of arrival (AoA), angle of departure (AoD), multipath information, Rice factor, angle spread, delay spread, channel state information (CSI).

3. The method according to claim 1 or 2, wherein, The first uplink signal includes at least one of the following: Cell handover request, uplink positioning reference signal, on-demand measurement signal trigger request, detection reference signal (SRS).

4. The method according to any one of claims 1 to 3, wherein, At least some of the channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; And / or, The at least one set of channel knowledge maps, at least some of which are different sets of channel knowledge maps, are associated with different base stations, TRPs, cells, regions, grids, or radio frequency grids.

5. The method according to claim 4, wherein, The at least partial channel knowledge map satisfies at least one of the following: Each set of channel knowledge maps in the at least partial channel knowledge maps contains channel information for at least two locations within the associated frequency points or frequency domain range; Each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for at least two locations within an associated base station, TRP, cell, or area; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated grid or radio frequency grid; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated area or at least two sub-areas within an area.

6. The method according to any one of claims 1 to 5, wherein, The channel knowledge map includes at least one of the following: channel gain map, channel shadow map, channel path map, line-of-sight link probability map, and dynamic channel knowledge map. And / or, The environmental information includes at least one of the following: radio map, perceived environmental point cloud information, 3D map; And / or, The at least one cell includes at least one of the following: serving cell, one or more neighboring cells.

7. The method according to any one of claims 1 to 6, wherein, The at least one cell is a cell applicable to the terminal within the first time period predicted by the terminal, or the at least one cell is a cell applicable to the terminal within the first time period predicted by the network side. And / or, The at least one region is the region applicable to the terminal within the first time period predicted by the terminal, or the at least one region is the region applicable to the terminal within the first time period predicted by the network side; And / or, The target scenario is either the scenario that the terminal is applicable to within a first time period predicted by the terminal, or the target scenario is the scenario that the terminal is applicable to within a first time period predicted by the network side.

8. The method according to any one of claims 1 to 7, wherein, The terminal performs a first operation based on the first information, including: The terminal performs the first operation based on the first information and the terminal's location information.

9. The method according to claim 8, wherein, The first operation includes acquiring channel quality information; The terminal performs the first operation based on the first information and the terminal's location information, including: The terminal performs channel modeling based on the environmental information of the at least one cell, the location information of the at least one cell, and the location information of the terminal, and obtains the channel quality information.

10. The method according to claim 8 or 9, wherein, The location information of the terminal includes at least one of the following: The terminal's geographical location, the terminal's virtual location, the terminal's geographical region, the sub-region where the terminal is located, the grid where the terminal is located, the radio frequency grid where the terminal is located, the terminal's moving speed, the terminal's moving direction, the terminal's orientation, and the terminal's posture. Wherein, the virtual location of the terminal is a measurement quantity used for the positioning of the terminal, and the measurement quantity includes at least one of the following: time difference of arrival, round-trip delay, AoD, AoA.

11. The method according to any one of claims 1 to 10, wherein, The first information includes at least two sets of condition switching conditions; wherein, different sets of condition switching conditions in the at least two sets of condition switching conditions correspond to different Quality of Service (QoS) requirements; And / or, The first information includes at least two sets of transmission conditions for the first uplink signal; wherein, different sets of transmission conditions for the first uplink signal in the at least two sets of transmission conditions for the first uplink signal correspond to different QoS requirements; And / or, The first information includes at least two sets of cell reselection conditions; wherein, different sets of cell reselection conditions in the at least two sets of cell reselection conditions correspond to different QoS requirements; or, a portion of the at least two sets of cell reselection conditions corresponds to terminals that support channel knowledge information-assisted measurement, and another portion of the at least two sets of cell reselection conditions corresponds to terminals that do not support channel knowledge information-assisted measurement.

12. The method according to any one of claims 1 to 11, wherein, The terminal performs a first operation based on the first information, including: The terminal obtains channel quality information based on the first information; The terminal performs the first operation based on the channel quality information and the channel quality measurement result obtained by measuring the reference signal.

13. The method according to claim 12, wherein, The terminal performs the first operation based on the channel quality information and the channel quality measurement result obtained by measuring the reference signal, including: The terminal performs joint filtering based on the channel quality information and the channel quality measurement results obtained by measuring the reference signal; The terminal performs the first operation based on the joint filtering result.

14. The method according to any one of claims 1 to 13, wherein, The method further includes: The terminal reports capability information, wherein the capability information is used to indicate whether the terminal supports channel knowledge-based assisted measurement.

15. A wireless communication method, wherein, include: The network-side device sends the first information to the terminal; The first information is related to the first operation performed by the terminal; The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or transmit / receive point TRP, a cell list associated with at least one region, and a cell list associated with the target scenario. The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

16. The method according to claim 15, wherein, The first information is related to at least one of the following: Path loss, channel gain, reference signal received power (RSRP), shadow variance, shadow fading, spatial correlation matrix, angle of arrival (AoA), angle of departure (AoD), multipath information, Rice factor, angle spread, delay spread, channel state information (CSI).

17. The method according to claim 15 or 16, wherein, The first uplink signal includes at least one of the following: Cell handover request, uplink positioning reference signal, on-demand measurement signal trigger request, detection reference signal (SRS).

18. The method according to any one of claims 15 to 17, wherein, At least some of the channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; And / or, The at least one set of channel knowledge maps, at least some of which are different sets of channel knowledge maps, are associated with different base stations, TRPs, cells, regions, grids, or radio frequency grids.

19. The method according to claim 18, wherein, The at least partial channel knowledge map satisfies at least one of the following: Each set of channel knowledge maps in the at least partial channel knowledge maps contains channel information for at least two locations within the associated frequency points or frequency domain range; Each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for at least two locations within an associated base station, TRP, cell, or area; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated grid or radio frequency grid; or each set of channel knowledge maps in the at least partial channel knowledge map contains channel information for an associated area or at least two sub-areas within an area.

20. The method according to any one of claims 15 to 19, wherein, The channel knowledge map includes at least one of the following: channel gain map, channel shadow map, channel path map, line-of-sight link probability map, and dynamic channel knowledge map. And / or, The environmental information includes at least one of the following: radio map, perceived environmental point cloud information, 3D map; And / or, The at least one cell includes at least one of the following: serving cell, one or more neighboring cells.

21. The method according to any one of claims 15 to 20, wherein, The at least one cell is a cell applicable to the terminal within the first time period predicted by the terminal, or the at least one cell is a cell applicable to the terminal within the first time period predicted by the network-side device, or the at least one cell is a cell applicable to the terminal within the first time period predicted by other network-side devices; And / or, The at least one region is the region applicable to the terminal within the first time period predicted by the terminal, or the at least one region is the region applicable to the terminal within the first time period predicted by the network-side device, or the at least one region is the region applicable to the terminal within the first time period predicted by other network-side devices; And / or, The target scenario is either a scenario applicable to the terminal within a first time period predicted by the terminal, or a scenario applicable to the terminal within a first time period predicted by the network-side device, or a scenario applicable to the terminal within a first time period predicted by other network-side devices.

22. The method according to any one of claims 15 to 21, wherein, The first information includes at least two sets of condition switching conditions; wherein, different sets of condition switching conditions in the at least two sets of condition switching conditions correspond to different Quality of Service (QoS) requirements; And / or, The first information includes at least two sets of transmission conditions for the first uplink signal; wherein, different sets of transmission conditions for the first uplink signal in the at least two sets of transmission conditions for the first uplink signal correspond to different QoS requirements; And / or, The first information includes at least two sets of cell reselection conditions; wherein, different sets of cell reselection conditions in the at least two sets of cell reselection conditions correspond to different QoS requirements; or, a portion of the at least two sets of cell reselection conditions corresponds to terminals that support channel knowledge information-assisted measurement, and another portion of the at least two sets of cell reselection conditions corresponds to terminals that do not support channel knowledge information-assisted measurement.

23. The method according to any one of claims 15 to 22, wherein, The method further includes: The network-side device receives capability information from the terminal, wherein the capability information is used to indicate whether the terminal supports channel knowledge-based assisted measurement.

24. A wireless communication device, wherein, include: Receive module and processing module; The receiving module or the processing module is used to acquire the first information; The processing module is also configured to perform a first operation based on the first information; The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or transmit / receive point TRP, a cell list associated with at least one region, and a cell list associated with the target scenario. The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

25. The apparatus according to claim 24, wherein, The first uplink signal includes at least one of the following: Cell handover request, uplink positioning reference signal, on-demand measurement signal trigger request, detection reference signal (SRS).

26. The apparatus according to claim 24 or 25, wherein, At least some of the channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; And / or, The at least one set of channel knowledge maps, at least some of which are different sets of channel knowledge maps, are associated with different base stations, TRPs, cells, regions, grids, or radio frequency grids.

27. The apparatus according to any one of claims 24 to 26, wherein, The processing module is specifically used for: The first operation is performed based on the first information and the location information of the wireless communication device.

28. The apparatus according to claim 27, wherein, The first operation includes acquiring channel quality information; The processing module is specifically used for: Channel modeling is performed based on the environmental information of the at least one cell, the location information of the at least one cell, and the location information of the wireless communication device to obtain the channel quality information.

29. The apparatus according to any one of claims 24 to 28, wherein, The first information includes at least two sets of condition switching conditions; wherein, different sets of condition switching conditions in the at least two sets of condition switching conditions correspond to different Quality of Service (QoS) requirements; And / or, The first information includes at least two sets of transmission conditions for the first uplink signal; wherein, different sets of transmission conditions for the first uplink signal in the at least two sets of transmission conditions for the first uplink signal correspond to different QoS requirements; And / or, The first information includes at least two sets of cell reselection conditions; wherein, different sets of cell reselection conditions in the at least two sets of cell reselection conditions correspond to different QoS requirements; or, a portion of the at least two sets of cell reselection conditions corresponds to terminals that support channel knowledge information-assisted measurement, and another portion of the at least two sets of cell reselection conditions corresponds to terminals that do not support channel knowledge information-assisted measurement.

30. The apparatus according to any one of claims 24 to 29, wherein, The processing module is specifically used for: Obtain channel quality information based on the first information; The first operation is performed based on the channel quality information and the channel quality measurement results obtained by measuring the reference signal.

31. The apparatus according to any one of claims 24 to 30, wherein, The wireless communication device further includes: A transmitting module is used to report capability information, wherein the capability information is used to indicate whether the wireless communication device supports channel knowledge-based assisted measurement.

32. A wireless communication device, wherein, include: The sending module is used to send the first information to the terminal; The first information is related to the first operation performed by the terminal; The first information includes at least one of the following: at least one set of channel knowledge maps, environmental information of at least one cell and location information of at least one cell or base station or transmit / receive point TRP, a cell list associated with at least one region, and a cell list associated with the target scenario. The first operation includes at least one of the following: making a cell handover decision, making a cell reselection decision, and determining whether to send a first uplink signal.

33. The apparatus according to claim 32, wherein, The first uplink signal includes at least one of the following: Cell handover request, uplink positioning reference signal, on-demand measurement signal trigger request, detection reference signal (SRS).

34. The apparatus according to claim 32 or 33, wherein, At least some of the channel knowledge maps in the at least one set of channel knowledge maps are associated with different frequency points or frequency domain ranges; And / or, The at least one set of channel knowledge maps, at least some of which are different sets of channel knowledge maps, are associated with different base stations, TRPs, cells, regions, grids, or radio frequency grids.

35. The apparatus according to any one of claims 32 to 34, wherein, The first information includes at least two sets of condition switching conditions; wherein, different sets of condition switching conditions in the at least two sets of condition switching conditions correspond to different Quality of Service (QoS) requirements; And / or, The first information includes at least two sets of transmission conditions for the first uplink signal; wherein, different sets of transmission conditions for the first uplink signal in the at least two sets of transmission conditions for the first uplink signal correspond to different QoS requirements; And / or, The first information includes at least two sets of cell reselection conditions; wherein, different sets of cell reselection conditions in the at least two sets of cell reselection conditions correspond to different QoS requirements; or, a portion of the at least two sets of cell reselection conditions corresponds to terminals that support channel knowledge information-assisted measurement, and another portion of the at least two sets of cell reselection conditions corresponds to terminals that do not support channel knowledge information-assisted measurement.

36. A terminal, wherein, 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 wireless communication method as described in any one of claims 1 to 14.

37. A network-side device, wherein, 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 wireless communication method as described in any one of claims 15 to 23.

38. A readable storage medium, wherein, The readable storage medium stores a program or instructions that, when executed by a processor, implement the wireless communication method as described in any one of claims 1 to 14, or implement the steps of the wireless communication method as described in any one of claims 15 to 23.

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