Information transmission method, communication node and storage medium

Abstract

The invention discloses an information transmission method, a communication node and a storage medium. The method comprises the following steps: when a prediction condition is satisfied, transmitting a first message with a second communication node; wherein the first message is used for indicating to determine a prediction result based on an actual measurement result of the second communication node; and an actual measurement result and the prediction result sent by the second communication node are received, and the second communication node has a prediction function.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and for example, relates to an information transmission method, a communication node, and a storage medium. Background Art

[0002] To ensure the continuity of wireless communication, a terminal device can switch between different cells.

[0003] In related technologies, handover is implemented through a layer 3 (L3) handover mechanism. Under the L3 handover mechanism, handover triggering and execution are based on historical measurement results and / or measurement events reported by the terminal device. The above handover mechanism is essentially a reactive solution. When the mobility of the terminal device is low, for macro cell services, the above handover mechanism may work well. However, in scenarios where the terminal device has high mobility or between high-density micro cells, or both existing and future services such as Extended Reality (XR), this reactive solution may lead to more unexpected events, such as handover failures, radio link failures, ping-pong effects, throughput losses, or premature / late handovers. Summary of the Invention

[0004] An embodiment of this application provides an information transmission method applied to a first communication node. The method includes:

[0005] When a prediction condition is met, transmit a first message to a second communication node; wherein, the first message is used to indicate a prediction result determined based on the actual measurement result of the second communication node;

[0006] Receive the actual measurement result and the prediction result sent by the second communication node; wherein, the second communication node has a prediction function.

[0007] An embodiment of this application provides an information transmission method applied to a second communication node. The method includes:

[0008] When a prediction condition is met, transmit a first message to a first communication node; wherein, the first message is used to indicate a prediction result determined based on the actual measurement result of the second communication node;

[0009] Determine the prediction result according to the actual measurement result; wherein, the second communication node has a prediction function;

[0010] Send the actual measurement result and the prediction result to the first communication node.

[0011] An embodiment of this application provides a communication node, including: a processor; the processor is configured to implement the information transmission method in any of the above embodiments when executing a computer program.

[0012] An embodiment of the present application further provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the information transmission method of any of the above embodiments.

[0013] More descriptions about the above embodiments and other aspects of the present application and their implementation manners are provided in the accompanying drawings description, the specific implementation manner, and the claims. Description of the Drawings

[0014] Figure 1 is a networking schematic diagram of a wireless communication system provided by an embodiment;

[0015] Figure 2 is a flowchart of an information transmission method provided by an embodiment;

[0016] Figure 3 is a schematic diagram of cell-level measurement results and beam-level measurement results;

[0017] Figure 4 is a schematic diagram of a prediction process provided by an embodiment;

[0018] Figure 5 is a schematic diagram of a measurement process with a sliding L1 / L3 filtering option provided by an embodiment;

[0019] Figure 6 is a schematic diagram of a measurement process with a non-sliding L1 / L3 filtering option provided by an embodiment;

[0020] Figure 7 is a schematic diagram of an observation window and a prediction window provided by an embodiment;

[0021] Figure 8 is a schematic diagram of another observation window and a prediction window provided by an embodiment;

[0022] Figure 9 is a schematic diagram of yet another observation window and a prediction window provided by an embodiment;

[0023] Figure 10 is a schematic diagram of a measurement cell and a prediction cell provided by an embodiment;

[0024] Figure 11 is a schematic diagram of beam measurement in the related art;

[0025] Figure 12 is a schematic diagram of a measurement set and a prediction set provided by an embodiment;

[0026] Figure 13 is a flowchart of another information transmission method provided by an embodiment;

[0027] Figure 14 It is a schematic structural diagram of an information transmission device provided by an embodiment;

[0028] Figure 15 It is a schematic structural diagram of another information transmission device provided by an embodiment;

[0029] Figure 16 It is a schematic diagram of a first communication node provided by an embodiment;

[0030] Figure 17 It is a schematic diagram of a second communication node provided by an embodiment. Detailed implementation manners

[0031] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. The embodiments of the present application will be described in detail below with reference to the drawings.

[0032] To enhance the robustness of handover, conditional handover was introduced in Release (Rel)-16; and to reduce the interruption time of frequent handovers between cells, Layer 1 / Layer2Triggered Mobility Handover (LTM) handover was introduced in Rel-18. However, these two mechanisms are not sufficient because they are still essentially reactive solutions.

[0033] This embodiment provides an information transmission method. When a prediction condition is met, a first communication node and a second communication node transmit a first message, and this first message is used to indicate a prediction result determined based on the actual measurement result of the second communication node. When the second communication node has a prediction function, the actual measurement result and the prediction result sent by the second communication node are received. On the one hand, it realizes obtaining the prediction result determined based on the actual measurement result, and then, a better decision can be made based on the prediction result to avoid unexpected events. Compared with the reactive solution, the proactive solution of this embodiment avoids unexpected events during the handover process, improves the handover performance, and improves the reliability of communication. On the other hand, the first message is transmitted only when the prediction condition is met, thus ensuring the validity of the obtained prediction result and further avoiding unexpected events.

[0034] The information transmission method provided by this application can be applied to various wireless communication systems, such as Long Term Evolution (LTE) systems, 4th-generation (4G) systems, 5th-generation (5G) systems, LTE and 5G hybrid architecture systems, 5G New Radio (NR) systems, and new communication systems emerging in the future development of communication, such as 6th-generation (6G) systems, etc. Figure 1 It is a network architecture diagram of a wireless communication system provided by an embodiment. As Figure 1 shown, this wireless communication system includes a terminal device 110, an access network device 120, and a core network device 130.

[0035] The terminal device 110 can be a device with wireless transceiver functions, which can be deployed on land (such as indoors or outdoors, handheld, wearable, or vehicle-mounted, etc.); it can also be deployed on water (such as a ship, etc.); it can also be deployed in the air (such as an airplane, balloon, and satellite, etc.). Some examples of the terminal device 110 are: passive terminals, user equipment (UE), mobile phones, mobile stations, tablet computers, laptop computers, ultra-mobile personal computers (UMPC), handheld computers, netbooks, personal digital assistants (PDA), and other user equipment that can be connected to the network, or virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc., or Internet of Things nodes in the Internet of Things, or in-vehicle communication devices in vehicle-to-everything, or entertainment, game devices or systems, or global positioning system devices, etc. The embodiments of this application do not limit the specific technologies and specific device forms adopted by the terminal device. In addition, the terminal device can be abbreviated as the terminal.

[0036] The access network device 120 is an access device for the terminal device 110 to access the wireless communication system in a wireless manner. It can be a reader, a base station, an evolved NodeB (eNB or eNodeB) in Long Term Evolution - advanced (LTEA), a transmission reception point (TRP), a base station in a 5G mobile communication system or a next generation NodeB (gNB), a base station in a future mobile communication system, or an access node in a Wireless Fidelity (WiFi) system, etc. The base station can include various macro base stations, micro base stations, home base stations, remote radio heads, routers, WIFI devices, or various network - side devices such as a primary cell and a secondary cell, and a location management function (LMF) device. It can also be a module or unit that completes some functions of the base station. For example, it can be a central unit (CU) or a distributed unit (DU). The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the access network device. Additionally, the access network device can be abbreviated as the base station.

[0037] The core network device 130 can include an access and mobility management network element and a session management network element. Exemplarily, the terminal device 110 can access the core network through the access network device 120 to achieve data transmission.

[0038] Next, the information transmission method, communication nodes, and their technical effects provided by the present application will be described.

[0039] Figure 2 It is a flowchart of an information transmission method provided by an embodiment. The information transmission method provided by this embodiment can be applied to a first communication node. The first communication node in this embodiment can be Figure 1 the access network device in Figure 2 As shown in

[0040] Step 201: When the prediction condition is met, transmit a first message to a second communication node.

[0041] Among them, the first message is used to indicate a prediction result determined based on the actual measurement result of the second communication node.

[0042] The second communication node in this embodiment can beFigure 1 The terminal device in [the above]. The prediction condition in this embodiment is used to characterize that the actual measurement result of the second communication node is reliable. Therefore, when the prediction condition is met, the prediction result can be determined based on the actual measurement result of the second communication node.

[0043] Optionally, the prediction condition in this embodiment is used to characterize at least one of the following: the conditions that the current channel should meet; the movement range of the second communication node; environmental conditions, such as network deployment density, indoor or outdoor scenarios, etc.

[0044] Optionally, transmitting the first message to the second communication node may include: sending the first message to the second communication node. In this scenario, the first communication node determines to send the first message to the second communication node when the prediction condition is met.

[0045] Optionally, transmitting the first message to the second communication node may include: receiving the first message sent by the second communication node. In this scenario, the second communication node determines to send the first message to the first communication node when the prediction condition is met.

[0046] Optionally, the first message in this embodiment is further used to indicate that the prediction result can be used for subsequent operations. The subsequent operations in this embodiment may be operations such as cell handover.

[0047] Step 202: Receive the actual measurement result and the prediction result sent by the second communication node.

[0048] Wherein, the second communication node has a prediction function.

[0049] In the first scenario, in step 202, since the second communication node has a prediction function, after receiving the first message, the second communication node can determine the prediction result according to the actual measurement result. The first communication node receives the actual measurement result and the prediction result sent by the second communication node. In this scenario, the first communication node may or may not have a prediction function.

[0050] In the second scenario, the second communication node does not have a prediction function, and the first communication node has a prediction function. In this scenario, after step 201, the information transmission method provided in this embodiment further includes: receiving the actual measurement result sent by the second communication node; determining the prediction result according to the actual measurement result. This scenario can determine the prediction result according to the actual measurement result when the second communication node does not have a prediction function, so as to avoid unexpected events during the handover process and improve the handover performance.

[0051] Optionally, the process of determining the prediction result according to the actual measurement result in this embodiment can be implemented based on a prediction model, that is, the prediction function in this embodiment can be a prediction model.

[0052] Optionally, the prediction model in this embodiment may be an Artificial Intelligence (AI) model, for example, a Machine Learning (ML) model. Optionally, the prediction model in this embodiment may be a prediction algorithm based on statistics or data analysis. The specific implementation manner of the prediction model in this embodiment is not limited.

[0053] The prediction process in this embodiment may include at least one of the following: temporal domain prediction, frequency domain prediction, and spatial domain prediction.

[0054] The temporal domain prediction in this embodiment refers to using the actual measurement results of the second communication node in the serving cell or adjacent cells to infer the prediction results of the same cell at a future moment, or using the actual measurement results of the second communication node in the serving beam to infer the prediction results of the same beam at a future moment.

[0055] The frequency domain prediction in this embodiment refers to using the actual measurement results of the second communication node at the first frequency in the measured cell to determine the prediction results of the second frequency of the predicted cell between frequencies for the second communication node, or using the actual measurement results of the second communication node at the first frequency in the measured beam to determine the prediction results of the second frequency of the predicted beam between frequencies for the second communication node. The first frequency is different from the second frequency.

[0056] The spatial domain prediction in this embodiment refers to predicting a group of neighboring beams or cells by measuring a smaller set of beams or cells.

[0057] According to the location of the prediction model, the prediction model in this embodiment can be divided into a unilateral model and a bilateral model. Among them, the unilateral model refers to the prediction model of the first communication node (NW side model) or the prediction model of the second communication node (UE side model). The bilateral model refers to the prediction model of the first communication node and the prediction model of the second communication node. It can be understood that the NW side model in this embodiment corresponds to the scenario where the first communication node has a prediction function and the second communication node does not have a prediction function, and the UE side model corresponds to the scenario where the second communication node has a prediction function and the first communication node does not have a prediction function.

[0058] Optionally, the prediction process in this embodiment can implement cell-level prediction and beam-level prediction. The actual measurement results in this embodiment can be cell-level measurement results or beam-level measurement results. Correspondingly, the prediction results in this embodiment can also be cell-level measurement results or beam-level measurement results.

[0059] Figure 3 are schematic diagrams of cell-level measurement results and beam-level measurement results. As Figure 3 shown, A represents the original beam-level measurement results. A 1 represents the L1 beam-level measurement results after L1 filtering. B represents the L1 beam-level measurement results selected and / or combined from A 1 in combination with the Radio Resource Control (RRC) configuration parameters. C represents the L3 cell-level measurement results after cell quality L3 filtering. D represents the operation information determined based on C and C 1 . C 1 represents the rule information. E represents the L3 beam-level measurement results after L3 beam filtering. F represents reporting X L3 beam-level measurement results selected from K L3 beam-level measurement results.

[0060] Figure 4 is a schematic diagram of the prediction process provided by an embodiment. As Figure 4 shown, the prediction process in this embodiment can be divided into the following three cases.

[0061] In the first case, the L1 beam-level measurement results (A 1 ) are input into the prediction model to obtain the L1 beam-level prediction results (A 1 ) output by the prediction model. Then, through prediction result integration (e.g., weighted average), the L3 cell-level prediction results (C) are obtained. Alternatively, the L1 beam-level measurement results are input into the prediction model to obtain the L1 beam-level prediction results output by the prediction model, and then through prediction result integration, the L3 beam-level prediction results (E) are obtained.

[0062] In the second case, the L1 beam-level measurement results (A 1 ) are input into the prediction model to obtain the L3 cell-level prediction results (C) output by the prediction model. Alternatively, the L1 beam-level measurement results (A 1 ) are input into the prediction model to obtain the L3 beam-level prediction results (E) output by the prediction model.

[0063] In the third case, the actually measured L3 cell-level measurement result (C) is input into the prediction model to obtain the L3 cell-level prediction result (C) output by the prediction model. Alternatively, the actually measured L3 beam-level measurement result (E) is input into the prediction model to obtain the L3 beam-level prediction result (E) output by the prediction model.

[0064] It should be noted that in a scenario where the second communication node has a prediction function, the second communication node may determine the prediction result based on Figure 4 at least one of the three cases shown, according to the actually measured result. In a scenario where the first communication node has a prediction function, the first communication node may determine the prediction result based on Figure 4 at least one of the three cases shown, according to the actually measured result.

[0065] Optionally, when the prediction condition is not met, a second message is transmitted to the second communication node, where the second message is used to indicate that the prediction result is not determined based on the actually measured result of the second communication node, that is, the second communication node performs actual measurement to obtain the actually measured result; the actually measured result sent by the second communication node is received. This implementation manner can indicate that the second communication node performs actual measurement when the prediction condition is not met, avoiding the situation of making a prediction when the prediction condition is not met. Among them, transmitting the second message to the second communication node may include: sending the second message to the second communication node, or receiving the second message sent by the second communication node.

[0066] The information transmission method provided in this embodiment can determine the prediction result based on the actually measured result of the second communication node when the prediction condition is met, so that better decisions can be made or unexpected events can be avoided through proactive measures, improving the handover and radio resource management (RRM) performance, thereby avoiding unexpected events such as short stays in handovers due to radio link failures.

[0067] This embodiment provides an information transmission method. When the prediction condition is met, the first communication node transmits a first message to the second communication node. The first message is used to indicate that the prediction result is determined based on the actually measured result of the second communication node. When the second communication node has a prediction function, the actually measured result and the prediction result sent by the second communication node are received. On the one hand, the prediction result determined based on the actually measured result is obtained. Furthermore, better decisions can be made based on the prediction result to avoid unexpected events. Compared with the reactive scheme, the proactive scheme of this embodiment avoids unexpected events during the handover process, improves the handover performance, and improves the reliability of communication. On the other hand, the first message is transmitted only when the prediction condition is met, thereby ensuring the validity of the obtained prediction result and further avoiding unexpected events.

[0068] The information transmission method provided in this embodiment will be described in detail below from three implementation manners: time domain prediction, frequency domain prediction, and spatial domain prediction.

[0069] In time domain prediction, it is divided into scenario A1 and scenario B1 according to whether the measurement quantity of the second communication node is reduced. During the entire measurement and inference process, it slides forward with a sampling period (with a sliding L1 / L3 filtering option) or a measurement period (with a non-sliding L1 / L3 filtering option).

[0070] Figure 5 is a schematic diagram of a measurement process with a sliding L1 / L3 filtering option provided by an embodiment. As Figure 5 shown, in this measurement process, the sampling period is equal to the measurement period. Among them, the circles in the first row represent L1 measurement samples. The measurement sample in this embodiment represents the smallest unit of measurement. The time duration between two circles in the first row represents the sampling period. The circles in the second row represent the measurement results after L1 filtering. Figure 5 In it, the measurement result is characterized by the Reference Signal Received Power (RSRP for short). Multiple measurement samples will obtain a measurement result. Figure 5 Taking the example that one measurement result is obtained from 5 measurement samples for illustration. The circles in the third row represent the RSRP after L3 filtering. At least one RSRP after L1 filtering will obtain an RSRP after L3 filtering. Figure 5 Taking the example that one RSRP after L1 filtering obtains an RSRP after L3 filtering for illustration. Based on the description of the above embodiment, it can be known that Figure 5 the RSRP after L1 filtering in it can be the beam-level RSRP after L1 filtering, and the RSRP after L3 filtering can be the beam-level RSRP after L3 filtering, or can also be the cell-level RSRP after L3 filtering.

[0071] Figure 5 The measurement process in it slides forward according to each measurement sample. That is, based on measurement samples 00 to 04, the RSRP 04 after L1 filtering is obtained, based on measurement samples 01 to 05, the RSRP05 after L1 filtering is obtained, and so on.

[0072] Figure 6 is a schematic diagram of a measurement process with a non-sliding L1 / L3 filtering option provided by an embodiment. Figure 6 The meanings represented by the circles in each row in it are similar to those in Figure 5 and will not be elaborated here. Figure 6 The sampling period and the measurement period in it are different. Figure 6 In the example of Figure 6The measurement process in [description] does not slide forward for each measurement sample, but realizes measurement at intervals of every 5 measurement samples. That is, based on measurement samples 00 to 04, the RSRP 04 after L1 filtering is obtained, based on measurement samples 05 to 09, the RSRP 09 after L1 filtering is obtained, and so on.

[0073] In the scenario of time-domain prediction, an observation window (OW for short) and a prediction window (PW for short) are provided. The continuous prediction results in the PW are predicted by the continuous actual measurement results in the OW. The historical true measurement results are within the observation window. Based on these true measurement results, the first communication node or the second communication node speculates on the results within the subsequent prediction window. In other words, the actual measurement results are in the observation window, the prediction results are in the prediction window, and the prediction window is after the observation window. The actual measurement results in this embodiment can be Figure 5 or Figure 6 the RSRP after L1 filtering or the RSRP after L3 filtering in [description].

[0074] In the time-domain prediction process, if the conditions such as the wireless channel change, it may affect the accuracy of the prediction results, and then affect subsequent cell handovers and other decision-making judgments. Therefore, in order to further ensure that the accuracy of the prediction results meets the actual requirements, the prediction conditions in this embodiment include at least one of the following: the change amount of the current channel state is less than the channel state change threshold; the current channel state is stable. The channel state in this embodiment can be characterized by RSRP or Signal-to-Noise Ratio (SNR for short). The current channel state being stable in this embodiment can also be described as the current channel state being good.

[0075] Furthermore, in order to further ensure the accuracy of the prediction results, the prediction conditions in this embodiment include at least one of the following: the change amount of the current channel state is less than the channel state change threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range. The movement range in this embodiment can be the movement range corresponding to the actual measurement results. Correspondingly, when at least one of the following is satisfied, it is determined that the prediction conditions are not met: the change amount of the current channel state is greater than or equal to the channel state change threshold, the second communication node is not within the movement range, and the current channel state is unstable.

[0076] In time-domain prediction, the actual measurement results are beam-level measurement results and / or cell-level measurement results, and the prediction results can also be beam-level prediction results and / or cell-level prediction results.

[0077] In scenario A1 of time-domain prediction, the second communication node does not skip any measurements. Measurement instances in subsequent prediction windows are included in the observation window and actual measurements are performed. The measurement instances in this embodiment can also be referred to as measurement occasions. Figure 7 is a schematic diagram of an observation window and a prediction window provided by an embodiment. As Figure 7 shown, the time interval between two square blocks represents the sampling period or the measurement period. A black square block represents an actual measurement result, and a white square block represents a prediction result. In Figure 7 , as time goes by, the white square block will turn into a black square block, indicating that the measurement instances in the prediction window are actually measured.

[0078] In scenario A1 of time-domain prediction, at least one of the following methods can be used to ensure the accuracy of the prediction result: Method 1, the first communication node monitors in real time; Method 2, the first communication node configures; Method 3, the second communication node controls autonomously.

[0079] For Method 1, the first communication node monitors the current channel condition in real time. For example, it monitors the current channel condition by using the uplink-downlink channel reciprocity (obtaining the uplink channel condition based on the content reported by the second communication node and then inferring the downlink channel state). If the prediction condition is met, that is, at least one of the following is satisfied: the change amount of the current channel state is less than the channel state change threshold, the current channel state is good / stable, the first communication node sends a first message to the second communication node to indicate that the prediction result is determined based on the actual measurement result of the second communication node and to indicate that the prediction result can be used for subsequent operations. If the prediction condition is not met, that is, the change amount of the current channel state is greater than or equal to the channel state change threshold and the current channel state is poor / unstable, the first communication node sends a second message to the second communication node to indicate not to perform measurement inference.

[0080] In Method 1, the first message is a first indication message. The first indication message is carried in any one of the following: RRC signaling, Media Access Control Control Element (MAC CE), Downlink Control Information (DCI), or the capability information of the second communication node. The second message can be a fourth indication message. The fourth indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0081] The following separately introduces the carrying methods of the first indication message and the fourth indication message in Method 1.

[0082] In the way of RRC signaling bearer, according to the requirements of the Abstract Syntax Notation One (ASN.1) protocol, an RRC signaling is designed for downlink message transmission, which can be named RRC_BS_AI_Available, and its value is RRC_BS_AI_Available = Boolean {true, false}.

[0083] If the current channel state change amount is less than the channel state change threshold and / or the current channel state is stable, the first communication node sends the signaling RRC_BS_AI_Available = TRUE (equivalent to the first indication message) to the second communication node, indicating that the prediction result can be determined based on the actual measurement result currently. If the second communication node has the prediction function (i.e., the UE sidemodel scenario), the second communication node needs to determine the prediction result in the PW according to the actual measurement result in the OW, and send the actual measurement result and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the NW side model scenario), the second communication node sends the actual measurement result to the first communication node, and the first communication node receives the actual measurement result sent by the second communication node, and then the first communication node determines the prediction result according to the actual measurement result.

[0084] If the current channel state change amount is greater than or equal to the channel state change threshold (such as |SNR at the prediction moment - SNR at the measurement moment| > YdB) and / or the current channel state is poor / unstable (such as SNR < XdB), at this time, it is not allowed to predict based on the actual measurement result, and the first communication node sends the signaling RRC_BS_AI_Available = FALSE (equivalent to the fourth indication message) to the second communication node. In this case, it is not necessary to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all measurement opportunities in the prediction window, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision.

[0085] In the way of MAC CE bearer, a new MAC CE is designed or the reserved area of the current existing MAC CE is used, and a preset bit, for example, 1 bit, is used to carry the first indication message or the fourth indication message. This message can be named "AI_Available_indication".

[0086] If the change amount of the current channel state is less than the channel state change threshold and / or the current channel state is stable, the first communication node sends AI_Available_indication = 0 (equivalent to the first indication message) to the second communication node, indicating that the prediction result can be determined based on the actual measurement result currently. If the second communication node has the prediction function (i.e., the scenario of UE side model), the second communication node needs to determine the prediction result in the PW according to the actual measurement result in the OW, and send the actual measurement result and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the scenario of NW side model), the second communication node sends the actual measurement result to the first communication node, and the first communication node receives the actual measurement result sent by the second communication node. Subsequently, the first communication node determines the prediction result according to the actual measurement result.

[0087] If the change amount of the current channel state is greater than or equal to the channel state change threshold (such as |SNR at the prediction moment - SNR at the measurement moment| > Y dB) and / or the current channel state is poor / unstable (such as SNR < X dB), at this time, prediction based on the actual measurement result is not allowed. The first communication node sends AI_Available_indication = 1 (equivalent to the fourth indication message) to the second communication node. In this case, it is not necessary to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all measurement opportunities in the prediction window, and report all actual measurement results to the first communication node after the measurement for the next decision-making.

[0088] In the DCI bearing mode, the first communication node can send the first indication message (named AI_Available_ON) or the fourth indication message (AI_Available_OFF) to the second communication node through the DCI carried on the downlink control channel or the downlink data channel, used to indicate whether the prediction condition is currently met and whether the prediction result can be determined based on the actual measurement result. The specific application details are similar to the RRC signaling and will not be elaborated here.

[0089] In the mode of bearing the capability information of the second communication node, a second communication node capability information (Capability) is designed, which can be named measurewithavailableAI and the type is optional. The first communication node selects whether to configure this capability for the second communication node according to whether the prediction condition is met.

[0090] If the change amount of the current channel state is less than the channel state change threshold and / or the current channel state is stable, the first communication node configures measurewithavailableAI (equivalent to the first indication message) for the second communication node, indicating that the prediction result can be determined based on the actual measurement result currently. If the second communication node has the prediction function (i.e., the UE side model scenario), the second communication node needs to determine the prediction result in the PW according to the actual measurement result in the OW and send the actual measurement result and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the NW side model scenario), the second communication node sends the actual measurement result to the first communication node, and the first communication node receives the actual measurement result sent by the second communication node. Subsequently, the first communication node determines the prediction result according to the actual measurement result.

[0091] If the change amount of the current channel state is greater than or equal to the channel state change threshold (such as |SNR at the prediction moment - SNR at the measurement moment| > Y dB) and / or the current channel state is poor / unstable (such as SNR < X dB), at this time, it is not allowed to make a prediction based on the actual measurement result, and the first communication node will not configure measurewithavailableAI (equivalent to the fourth indication message) for the second communication node. In this case, it is not necessary to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all measurement opportunities in the prediction window, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision-making.

[0092] For Method 2, the first communication node can configure the first message or the second message according to the current channel condition and other environmental conditions (such as network deployment density, indoor or outdoor scenario, etc.) and send the first message or the second message to the second communication node. In Method 2, the first message is the length information of the prediction window, which can be named "PW_LENGTH_INF". The length information of the prediction window is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0093] Optionally, in Method 2, the length information of the prediction window is the quotient of the length of the prediction window and the length of the observation window. The smaller the change amount of the current channel state, the larger the quotient, that is, the longer the prediction window; or, the more stable the current channel state, the larger the quotient.

[0094] Furthermore, the smaller the change amount of the current channel state when the second communication node is within the movement range, the larger the quotient; or, the more stable the current channel state when the second communication node is within the movement range, the larger the quotient.

[0095] In Method 2, the length of the observation window can be used as a baseline, and the length of the prediction window is a multiple of the length of the observation window (coefficient = length of the prediction window / length of the observation window). For example, the length of the candidate prediction window = {0*OWL, 0.2*OWL, 0.5*OWL, 1*OWL, 2*OWL, 5*OWL}. OWL represents the length of the observation window.

[0096] If the prediction condition is satisfied, that is, at least one of the following is satisfied: the change amount of the current channel state is less than the channel state change threshold, the current channel state is good / stable, and the quotient of the length of the prediction window and the length of the observation window is greater than 0 (equivalent to the first message). On the premise that the change amount of the current channel state is less than the channel state change threshold, the smaller the change amount of the current channel state, the larger the quotient. Or, on the premise that the current channel state is good / stable, the more stable the current channel state, the larger the quotient. For example, it is set to 2 or 5. On the premise that the change amount of the current channel state is less than the channel state change threshold, although the change amount of the current channel state is not ideal enough, the prediction result can still be determined based on the actual measurement results. Or, on the premise that the current channel state is good / stable, although the current channel state is not ideal enough, the prediction result can still be determined based on the actual measurement results, then the quotient can be set more conservatively. For example, it is set to 0.2, 0.5, or 1.

[0097] If the prediction condition is not satisfied, that is, at least one of the following is satisfied: the change amount of the current channel state is greater than or equal to the channel state change threshold, the current channel state is poor / unstable, the quotient of the length of the prediction window and the length of the observation window can be 0 (equivalent to the second message).

[0098] The following separately introduces the information carrying method of the length of the prediction window in Method 2.

[0099] In the method of carrying in RRC signaling, according to the requirements of the ASN.1 protocol, an RRC signaling is designed for downlink message transmission, which can be named PW_LENGTH_INF and contains the information that the length of the prediction window is a multiple of the length of the observation window, that is, PW_LENGTH_INF = length of the prediction window / length of the observation window.

[0100] If the current channel state change amount is less than the channel state change threshold and / or the current channel state is stable / good, and the value of PW_LENGTH_INF is greater than 0, it indicates that the prediction result can be determined based on the actual measurement result currently. If the second communication node has the prediction function (i.e., the UE side model scenario), the second communication node needs to determine the prediction result in the PW according to the actual measurement result in the OW, and send the actual measurement result and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the NW side model scenario), the second communication node sends the actual measurement result to the first communication node, and the first communication node receives the actual measurement result sent by the second communication node. Subsequently, the first communication node determines the prediction result according to the actual measurement result.

[0101] If the current channel state change amount is greater than or equal to the channel state change threshold and / or the current channel state is poor / unstable, the value of PW_LENGTH_INF is equal to 0. In this case, it is not allowed to make a prediction based on the actual measurement result. In this situation, it is not necessary to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all measurement opportunities in the prediction window, and report all the actual measurement results to the first communication node after the measurement is completed for the next-step decision-making.

[0102] In the way of being carried by the MAC CE, a new MAC CE is designed or the reserved area of the existing MAC CE is utilized, and the length information of the prediction window is carried by the preset bits. This message can be named PW_LENGTH_INF. Optionally, the length of the prediction window is a multiple of the length of the observation window. The specific application details are similar to the RRC signaling and will not be elaborated here.

[0103] In the way of being carried by the DCI, the first communication node can send the length information of the prediction window to the second communication node through the DCI carried on the downlink control channel or the downlink data channel, which can be named PW_LENGTH_INF. The specific application details are similar to the RRC signaling and will not be elaborated here.

[0104] In the way of carrying the capability information of the second communication node, a second communication node capability information is designed, which can be named PW_LENGTH_INF and is of an optional type. This capability information is used to indicate the length information of the prediction window. The first communication node determines the specific value of the length information according to the current channel condition. The specific application details are similar to the RRC signaling and will not be elaborated here.

[0105] For Method 3, the second communication node autonomously controls its current behavior. When the second communication node determines that the current channel condition (optionally, combined with the movement range of the second communication node) meets the prediction condition, that is, meets at least one of the following: the change amount of the current channel state is less than the channel state change threshold, the current channel state is good / stable, it sends a first message to the first communication node. The first communication node receives the first message sent by the second communication node. If the prediction condition is not met, that is, the change amount of the current channel state is greater than or equal to the channel state change threshold, the current channel state is poor / unstable, it sends a second message to the first communication node.

[0106] The first message and the second message in this method are carried in any one of the following: RRC signaling, MAC CE, uplink control information (Uplink Control Information, abbreviated as UCI).

[0107] The following separately introduces the carrying methods of the first message and the second message in Method 3.

[0108] In the way of carrying by RRC signaling, an RRC signaling is designed for uplink message transmission according to the requirements of the ASN.1 protocol, which can be named RRC_UE_AI_Available. Its value is RRC_UE_AI_Available = Boolean{ture, false}.

[0109] If the second communication node determines that the change amount of the current channel state is less than the channel state change threshold and / or the current channel state is stable, the second communication node sends the signaling RRC_UE_AI_Available = ture (equivalent to the first message) to the first communication node, indicating that the prediction result can be determined based on the actual measurement result currently. If the second communication node has a prediction function (i.e., the scenario of UE side model), the second communication node needs to determine the prediction result in the PW according to the actual measurement result in the OW and send the actual measurement result and the prediction result to the first communication node. If the second communication node does not have a prediction function and the first communication node has a prediction function (i.e., the scenario of NW side model), the second communication node sends the actual measurement result to the first communication node, the first communication node receives the actual measurement result sent by the second communication node, and then the first communication node determines the prediction result according to the actual measurement result.

[0110] If the second communication node determines that at least one of the following conditions is met: the current channel state change amount is greater than or equal to the channel state change threshold (e.g., |predicted SNR - measured SNR| > Y dB), the current channel state is poor / unstable (e.g., SNR < X dB) (optionally, it can also include that the second communication node is outside the movement range), at this time, prediction based on the actual measurement results is not allowed, and the second communication node sends a signaling RRC_UE_AI_Available = false (equivalent to the second message) to the first communication node. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements for all measurement opportunities in the prediction window, and after the measurement is completed, report all actual measurement results to the first communication node for the next decision.

[0111] In the MAC CE bearer mode, design a new MAC CE or use the reserved area of the existing MAC CE, and use a preset number of bits, for example, 1 bit, to bear the first message or the second message. This uplink assistance information (UplinkAssistance informance, abbreviated as UAI) can be named AI_Available_indication.

[0112] If the second communication node determines that the current channel state change amount is less than the channel state change threshold and / or the current channel state is stable, the second communication node sends AI_Available_indication = 0 (equivalent to the first message) to the first communication node, indicating that the prediction result can be determined based on the actual measurement results currently. If the second communication node has the prediction function (i.e., the scenario of the UE side model), the second communication node needs to determine the prediction result in the PW according to the actual measurement results in the OW and send the actual measurement results and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the scenario of the NW side model), the second communication node sends the actual measurement results to the first communication node, and the first communication node receives the actual measurement results sent by the second communication node, and then the first communication node determines the prediction result according to the actual measurement results.

[0113] If the second communication node determines that at least one of the following conditions is met: the current channel state change amount is greater than or equal to the channel state change threshold (e.g., |predicted moment SNR - measured moment SNR| > Y dB), the current channel state is poor / unstable (e.g., SNR < X dB) (optionally, it may also include that the second communication node is outside the movement range), at this time, prediction based on the actual measurement results is not allowed, and the second communication node sends AI_Available_indication = 1 (equivalent to the second message) to the first communication node. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements for all measurement opportunities in the prediction window, and after the measurement is completed, report all actual measurement results to the first communication node for the next step of decision-making.

[0114] In the UCI bearer mode, the second communication node can send the first message (which can be named UE_AI_Available) to the first communication node through the UCI carried on the uplink control channel or the uplink data channel, or send the second message to the first communication node to indicate whether the current prediction conditions are met and whether the prediction result can be determined based on the actual measurement results. The specific application details are similar to the RRC signaling and will not be elaborated here.

[0115] In the above scenario A1 of time domain prediction, since no measurement is skipped, therefore, it is ensured that the measurement results in the observation window are all actual measurement results. Furthermore, the accuracy of the prediction result determined based on the actual measurement results is further improved.

[0116] In the time domain prediction scenario B1, the measurement results in the observation window are historical true measurement results. Based on these true measurement results, the first communication node or the second communication node infers the results in the subsequent prediction window, thereby skipping the actual measurement (the measurement opportunities in the prediction window will not be actually measured) to reduce the measurement overhead and achieve the purpose of reducing the measurement delay. Figure 8 It is a schematic diagram of another observation window and prediction window provided by an embodiment. As Figure 8 shown, a black square block represents an actual measurement result, and a white square block represents a prediction result. In Figure 8 , as time goes by, the measurement instances in the PW will not be actually measured. Figure 9 It is a schematic diagram of yet another observation window and prediction window provided by an embodiment. As Figure 9 shown, a black square block represents an actual measurement result, a white square block represents a prediction result, and a gray square block represents a measurement instance that will not be actually measured. In Figure 9 , as time goes by, the measurement instances in the PW will not be actually measured.

[0117] In scenario B1 of time-domain prediction, at least one of the following methods can be adopted to ensure the accuracy of the prediction result: Method 1, the first communication node monitors in real time; Method 2, the first communication node is configured; Method 3, the second communication node controls autonomously. The specific implementation process is similar to each method in scenario A1 of time-domain prediction, and will not be elaborated here.

[0118] In the above scenario B1 of time-domain prediction, the prediction result can be determined according to the actual measurement result, and the actual measurement is skipped. Therefore, the measurement overhead is reduced and the measurement delay is decreased.

[0119] In frequency-domain prediction, according to the deployment positions of the measurement cell and the prediction cell, or according to the deployment positions of the measurement beam and the prediction beam, it can be divided into co-located prediction and non-collocated prediction. Among them, co-located prediction means that the positions of the measurement cell and the prediction cell are the same or the position deviation is less than the position deviation threshold, or it means that the positions of the measurement beam and the prediction beam are the same or the position deviation is less than the position deviation threshold. Non-collocated prediction means that the positions of the measurement cell and the prediction cell are different or the position deviation is greater than or equal to the position deviation threshold, or it means that the positions of the measurement beam and the prediction beam are different or the position deviation is greater than or equal to the position deviation threshold.

[0120] In frequency-domain prediction, the actual measurement result is the actual measurement result of the second communication node at the first frequency of the measurement cell, and the prediction result is the prediction result of the first communication node or the second communication node at the second frequency of the prediction cell between frequencies. Or, the actual measurement result is the actual measurement result of the second communication node at the first frequency of the measurement beam, and the prediction result is the prediction result of the first communication node or the second communication node at the second frequency of the prediction beam between frequencies. Among them, the first frequency is different from the second frequency.

[0121] Furthermore, in frequency-domain prediction, the actual measurement result and the prediction result are at the same moment. Or, the moment corresponding to the prediction result is after the moment corresponding to the actual measurement result. This embodiment is not limited thereto.

[0122] During the entire measurement and inference process, it slides forward with a sampling period (with a sliding L1 / L3 filtering option) or a measurement period (with a non-sliding L1 / L3 filtering option).

[0123] Figure 10 It is a schematic diagram of a measurement cell and a prediction cell provided by an embodiment. In Figure 10 an example where the actual measurement result and the prediction result are at the same moment is used for illustration. As Figure 10 shown, it shows the scenario where the measurement cell and the prediction cell are co-located, and the scenario where the measurement cell and the prediction cell are non-collocated.

[0124] During the frequency-domain measurement inference process, if conditions such as the wireless channel or the user's location change, it may affect the accuracy of the prediction result, and then affect subsequent cell handover and other decision-making judgments. Therefore, in order to ensure that the accuracy of the prediction result meets the actual requirements, the prediction conditions in this embodiment include at least one of the following: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range. Wherein, the current channel is the channel corresponding to the measurement cell at the first frequency, and the predicted channel is the channel corresponding to the predicted cell at the second frequency; or, the current channel is the channel corresponding to the measurement beam at the first frequency, and the predicted channel is the channel corresponding to the predicted beam at the second frequency.

[0125] In the co-located prediction scenario of frequency-domain prediction, for inter-frequency co-located deployment, the actual measurement result (such as RSRP) of the measurement cell X at frequency f1 (such as 2 GHz) is used as the input to predict the prediction result (such as RSRP) of the inter-frequency cell (i.e., the predicted cell) Y at frequency f2 (such as 4 GHz) in the same sector at the same site location. Or, the actual measurement result (such as RSRP) of the measurement beam at frequency f3 is used as the input to predict the prediction result (such as RSRP) of the inter-frequency beam (i.e., the predicted beam) at frequency f4 in the same sector at the same site location.

[0126] In the co-located prediction scenario of frequency-domain prediction, at least one of the following methods can be used to ensure the accuracy of the prediction result: Method 1, real-time monitoring by the first communication node; Method 2, configuration by the first communication node; Method 3, autonomous control by the second communication node.

[0127] For Method 1, the first communication node monitors the current channel condition in real time. For example, it monitors the current channel condition by using the uplink-downlink channel reciprocity (obtaining the uplink channel condition based on the content reported by the second communication node and then inferring the downlink channel state). If the prediction conditions are met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, the first communication node sends a first message to the second communication node to indicate determining the prediction result of the predicted cell based on the actual measurement result of the second communication node in the existing measured cell, and indicating that the prediction result can be used for subsequent operations. If the second communication node has a prediction function (i.e., the UE side model scenario), the second communication node needs to determine the inter-frequency prediction result according to the actual measurement result and send the actual measurement result and the prediction result to the first communication node. If the second communication node does not have a prediction function and the first communication node has a prediction function (i.e., the NW side model scenario), the second communication node sends the actual measurement result to the first communication node, and the first communication node receives the actual measurement result sent by the second communication node, and then the first communication node determines the prediction result according to the actual measurement result.

[0128] If the prediction conditions are not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable, the first communication node sends a second message to the second communication node to indicate not to perform measurement inference.

[0129] In Method 1, the first message is the second indication message. The second indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node. The second message can be the fifth indication message. The fifth indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0130] The following separately introduces the carrying methods of the second indication message and the fifth indication message in Method 1.

[0131] In the way of carrying by RRC signaling, a RRC signaling is designed according to the requirements of the ASN.1 protocol for downlink message transmission, which can be named RRC_BS_AI_Available, and its value is RRC_BS_AI_Available = Boolean{ture, false}.

[0132] If the first communication node monitors that the prediction conditions are met, i.e., at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, the first communication node sends a signaling RRC_BS_AI_Available = TRUE (equivalent to the second indication message) to the second communication node, indicating that the prediction result can be determined based on the actual measurement results currently.

[0133] If the first communication node monitors that the prediction conditions are not met, i.e., at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable, the first communication node sends a signaling RRC_BS_AI_Available = FALSE (equivalent to the fifth indication message) to the second communication node. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all frequencies, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision.

[0134] In the MAC CE bearer mode, design a new MAC CE or use the reserved area of the current existing MAC CE, and use a preset bit, for example, 1 bit (bit) to bear the second indication message or the fifth indication message. This message can be named "AI_Available_indication". Optionally, AI_Available_indication defaults to 0 (equivalent to the second indication message), indicating that the prediction result can be determined based on the actual measurement results currently.

[0135] If the first communication node monitors that the prediction conditions are met, i.e., at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, the first communication node sends AI_Available_indication = 0 to the second communication node.

[0136] If the first communication node monitors that the prediction conditions are not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable (e.g., SNR < X dB), the first communication node sends AI_Available_indication = 1 (equivalent to the fifth indication message) to the second communication node. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all frequencies and report all actual measurement results to the first communication node after the measurement for the next decision-making.

[0137] In the DCI-bearing manner, the first communication node can send the second indication message (which can be named AI_Available_ON) or the fifth indication message (AI_Available_OFF) to the second communication node through the DCI carried on the downlink control channel or the downlink data channel to indicate whether the current prediction conditions are met and whether the prediction result can be determined based on the actual measurement results. The specific application details are similar to those of the RRC signaling and will not be elaborated here.

[0138] In the manner of bearing the capability information of the second communication node, a second communication node capability information (Capability) is designed, which can be named measurewithavailableAI and is of an optional type. If this capability information is configured for the second communication node, it means that it currently has the ability to obtain a reasonable prediction result. The first communication node selects whether to configure this capability for the second communication node according to the channel state.

[0139] If the first communication node monitors that the prediction conditions are met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, the first communication node configures measurewithavailableAI (equivalent to the second indication message) for the second communication node, indicating that the prediction result can currently be determined based on the actual measurement results.

[0140] If the first communication node monitors that the prediction condition is not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable (e.g., SNR < X dB), the first communication node will not configure measurewithavailableAI (equivalent to the fifth indication message) for the second communication node. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all frequencies, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision.

[0141] For Method 2, the first communication node can configure the first message or the second message according to the current channel conditions and other environmental conditions (such as network deployment density, indoor or outdoor scenarios, etc.), and send the first message or the second message to the second communication node. In Method 2, the first message is the actual measurement period of the measurement samples to mitigate the impact of channel condition changes on the prediction process. The actual measurement period of the measurement samples is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0142] Optionally, the greater the correlation between the current channel and the predicted channel, and the second communication node is within the movement range, the longer the actual measurement period. The smaller the correlation between the current channel and the predicted channel, or the second communication node is not within the movement range, the shorter the actual measurement period, so as to obtain more accurate measurement results through frequent measurements.

[0143] Alternatively, the more stable the current channel state, and the second communication node is within the movement range, the longer the actual measurement period.

[0144] In this Method 2, the signal measurement timing configuration (SMTC) or the synchronization signal block (SSB) measurement period in traditional measurements can be used as a baseline. For example, the candidate measurement period (candidate value) = {0ms, 20ms, 40ms, 80ms, 160ms}.

[0145] If the prediction conditions are met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, set the actual measurement period of the measurement sample to be greater than 0 (equivalent to the first message). If the correlation between the current channel and the predicted channel is higher and the second communication node is within the movement range, the measurement results of different beams or cells have strong correlation, and the actual measurement period can be set larger, such as 80 ms; if the channel does not have strong correlation due to the changing environment or the position of the second communication node but still allows for inference, the actual measurement period can be set conservatively, such as 20 ms.

[0146] If the prediction conditions are not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable, set the actual measurement period of the measurement sample to be equal to 0 (equivalent to the second message).

[0147] The following separately introduces the carrying manner of the actual measurement period of the measurement sample in Method 2.

[0148] In the RRC signaling carrying manner, according to the ASN.1 protocol requirements, an RRC signaling is designed for downlink message transmission, which can be named MEASFORAI_PERIOD and contains the actual measurement period of a single measurement sample. The greater the correlation between the current channel and the predicted channel, and the second communication node is within the movement range, the longer this actual measurement period. Or, the more stable the current channel state, and the second communication node is within the movement range, the longer this actual measurement period.

[0149] If the first communication node monitors that the prediction conditions are met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, set the value of MEASFORAI_PERIOD to be greater than 0, indicating that the prediction result can currently be determined based on the actual measurement result. If the second communication node has the prediction function (i.e., the UE side model scenario), the second communication node needs to determine the prediction result according to the actual measurement result and send the actual measurement result and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the NW side model scenario), the second communication node sends the actual measurement result to the first communication node, and the first communication node receives the actual measurement result sent by the second communication node. Subsequently, the first communication node determines the prediction result according to the actual measurement result.

[0150] If the first communication node monitors that the prediction condition is not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable, set the value of MEASFORAI_PERIOD to 0. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all frequencies, and after the measurement is completed, report all actual measurement results to the first communication node for the next decision-making.

[0151] In the manner of being carried by MAC CE, design a new MAC CE or utilize the reserved area of the existing MAC CE, and adopt a preset bit to carry the actual measurement period of the measurement sample. This message can be named MEASFORAI_PERIOD and contains the actual measurement period of the measurement sample. The specific application details are similar to those of RRC signaling and will not be elaborated here.

[0152] In the manner of being carried by DCI, the first communication node can send the actual measurement period of the measurement sample to the second communication node through DCI carried on the downlink control channel or the downlink data channel, which can be named MEASFORAI_PERIOD. The specific application details are similar to those of RRC signaling and will not be elaborated here.

[0153] In the manner of carrying the capability information of the second communication node, design a second communication node capability information, which can be named MEASFORAI_PERIOD and is of optional type. This capability information is used to indicate the actual measurement period of the measurement sample. The first communication node determines the specific value of the actual measurement period according to the current channel conditions. The specific application details are similar to those of RRC signaling and will not be elaborated here.

[0154] For Method 3, the second communication node autonomously controls its current behavior. When the second communication node determines that the prediction condition is met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, it sends a first message to the first communication node. The first communication node receives the first message sent by the second communication node. When the second communication node determines that the prediction condition is not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable, it sends a second message to the first communication node.

[0155] The first message and the second message in this method are carried in any one of the following: RRC signaling, MAC CE, UCI.

[0156] The bearer modes of the first message and the second message in Method 3 are introduced separately as follows.

[0157] In the bearer mode of RRC signaling, an RRC signaling is designed for uplink message transmission according to the requirements of the ASN.1 protocol, which can be named RRC_UE_AI_Available. Its value is RRC_UE_AI_Available = Boolean {true, false}.

[0158] If it is determined that the prediction conditions are met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, the second communication node sends a signaling RRC_UE_AI_Available = true (equivalent to the first message) to the first communication node, indicating that the prediction result can be determined based on the actual measurement results currently. If the second communication node has the prediction function (i.e., the UE side model scenario), the second communication node needs to determine the prediction result according to the actual measurement results and send the actual measurement results and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the NW side model scenario), the second communication node sends the actual measurement results to the first communication node, and the first communication node receives the actual measurement results sent by the second communication node. Subsequently, the first communication node determines the prediction result according to the actual measurement results.

[0159] If it is determined that the prediction conditions are not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable, the second communication node sends a signaling RRC_UE_AI_Available = FALSE (equivalent to the second message) to the first communication node. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all frequencies, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision.

[0160] In the bearer mode of MAC CE, a new MAC CE is designed or the reserved area of the current existing MAC CE is used, and a preset bit, for example, 1 bit, is used to bear the first message or the second message. This UAI can be named AI_Available_indication.

[0161] When it is determined that the prediction conditions are met, i.e., at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, the second communication node sends AI_Available_indication = 0 (equivalent to the first message) to the first communication node, indicating that the prediction result can be determined based on the actual measurement results. If the second communication node has the prediction function (i.e., the UE side model scenario), the second communication node needs to determine the prediction result according to the actual measurement results and send the actual measurement results and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the NW side model scenario), the second communication node sends the actual measurement results to the first communication node, and the first communication node receives the actual measurement results sent by the second communication node. Subsequently, the first communication node determines the prediction result according to the actual measurement results.

[0162] If it is determined that the prediction conditions are not met, i.e., at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable, the second communication node sends AI_Available_indication = 1 (equivalent to the second message) to the first communication node. At this time, prediction based on the actual measurement results is not allowed. In this case, it is not necessary to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all frequencies, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision.

[0163] In the UCI bearer mode, the second communication node can send the first message (which can be named UE_AI_Available) to the first communication node through the UCI carried on the uplink control channel or the uplink data channel, or send the second message to the first communication node to indicate whether the prediction conditions are currently met and whether the prediction result can be determined based on the actual measurement results.

[0164] When it is determined that the prediction conditions are met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range, the second communication node sends UE_AI_Available=ture (equivalent to the first message) to the first communication node, indicating that the prediction result can be determined based on the actual measurement results currently. If the second communication node has the prediction function (i.e., the scenario of UE side model), the second communication node needs to determine the prediction result according to the actual measurement results, and send the actual measurement results and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the scenario of NW side model), the second communication node sends the actual measurement results to the first communication node, and the first communication node receives the actual measurement results sent by the second communication node, and then the first communication node determines the prediction result according to the actual measurement results.

[0165] When it is determined that the prediction conditions are not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold; the second communication node is not within the movement range; the current channel state is unstable, the second communication node sends UE_AI_Available=false (equivalent to the second message) to the first communication node, and at this time, it is not allowed to predict based on the actual measurement results. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all frequencies, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision-making.

[0166] In the co-location prediction scenario of the above frequency domain prediction, by limiting the conditions of the current channel and the predicted channel and the position of the second communication node, when the prediction conditions are met, it is possible to predict the cell prediction results or beam prediction results of different frequencies according to the actual measurement results, thereby reducing the measurement overhead, especially reducing the measurement gap overhead required for measurement between frequencies.

[0167] In the non-co-location prediction scenario of the frequency domain prediction, for the inter-frequency non co-located deployment, the actual measurement results (such as RSRP) of the measurement cell X at frequency f1 (such as 2 GHz) are used as the input to predict the prediction results (such as RSRP) of the inter-frequency cell (i.e., the predicted cell) Y at frequency f2 (such as 4 GHz) at different site positions. Or, the actual measurement results (such as RSRP) of the measurement beam at frequency f3 are used as the input to predict the prediction results (such as RSRP) of the inter-frequency beam (i.e., the predicted beam) at frequency f4.

[0168] In a non-collocated prediction scenario for frequency domain prediction, at least one of the following methods can be adopted to ensure the accuracy of the prediction results: Method 1, the first communication node monitors in real time; Method 2, the first communication node configures; Method 3, the second communication node controls autonomously. The specific implementation process is similar to each method in the collocated prediction scenario for frequency domain prediction, and will not be elaborated here.

[0169] In the above non-collocated prediction scenario for frequency domain prediction, by limiting the conditions of the current channel and the predicted channel and the position of the second communication node, when the prediction conditions are met, it is possible to predict the cell prediction results or beam prediction results of different frequencies according to the actual measurement results, thereby reducing the measurement overhead, especially reducing the measurement gap overhead required for measurements between frequencies.

[0170] In spatial domain prediction, the actual measurement results are the measurement results of the cells in the Observation Set (abbreviation: OS), and the prediction results are the prediction results of the cells in the Prediction Set (abbreviation: PS). Alternatively, the actual measurement results are the measurement results of the beams in the measurement set, and the prediction results are the prediction results of the beams in the prediction set. The measurement set contains real measurement results, and based on these real measurement results, the first communication node or the second communication node infers the results in the prediction set, thereby skipping the actual measurement to achieve the purpose of reducing the measurement delay.

[0171] Furthermore, in spatial domain prediction, the actual measurement results and the prediction results are at the same moment. Alternatively, the moment corresponding to the prediction result is after the moment corresponding to the actual measurement result. This embodiment is not limited thereto.

[0172] Optionally, the measurement set in this embodiment can be the cells or beams in the configured SSB. The actual measurement results in the measurement set are used as the input of the prediction model, thereby predicting the cell-level measurement results after L3 screening of the same cell or different cells at each moment.

[0173] In spatial domain prediction, the measurement results of all beams or cells are predicted by measuring a smaller number of beams or cells. Thereby avoiding measuring all beams or cells and achieving the purpose of shortening the measurement delay.

[0174] In spatial domain prediction, it can be divided into inter-cell and intra-cell scenarios for discussion. During the entire measurement inference process, it slides forward with a sampling period (with a sliding L1 / L3 filtering option) or a measurement period (with a non-sliding L1 / L3 filtering option).

[0175] Figure 11It is a schematic diagram of beam measurement in the related art. As Figure 11 shown, in the related art, it is necessary to measure all beams.

[0176] Figure 12 It is a schematic diagram of a measurement set and a prediction set provided by an embodiment. As Figure 12 shown, in this embodiment, the beams in the measurement set are measurement beams, and the beams in the prediction set are prediction beams. It can be seen that in spatial domain prediction, the prediction results of the beams in the prediction set can be determined through the measurement results of the beams in the measurement set, thereby reducing the measurement overhead.

[0177] During the spatial domain measurement and inference process, if conditions such as the wireless channel or the user's location change, it may affect the accuracy of the prediction results, and then affect subsequent cell handover and other decision-making judgments. Therefore, in order to ensure that the accuracy of the prediction results meets the actual requirements, the prediction conditions in this embodiment include at least one of the following: the correlation between the current channel and the prediction channel is greater than the channel correlation threshold; the current channel state is stable. Wherein, the current channel is the channel corresponding to the cell in the measurement set, and the prediction channel is the channel corresponding to the cell in the prediction set. Or, the current channel is the channel corresponding to the beam in the measurement set, and the prediction channel is the channel corresponding to the beam in the prediction set.

[0178] Furthermore, in order to further ensure the accuracy of the prediction results, the prediction conditions in this embodiment include at least one of the following: the correlation between the current channel and the prediction channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range.

[0179] In the in-cell scenario of spatial domain prediction, it is necessary to select a cell or a beam in the measurement set for actual measurement to obtain the actual measurement results, and determine the prediction results of the cell or the beam in the prediction set according to the actual measurement results.

[0180] In the in-cell scenario of spatial domain prediction, at least one of the following methods can be used to ensure the accuracy of the prediction results: Method 1, the first communication node monitors in real time; Method 2, the first communication node configures; Method 3, the second communication node controls autonomously.

[0181] For Method 1, the first communication node monitors the current channel condition in real time. For example, it monitors the current channel condition by using the uplink-downlink channel reciprocity (obtaining the uplink channel condition based on the content reported by the second communication node and then inferring the downlink channel state). If the prediction conditions are met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, the current channel state is stable, the first communication node sends a first message to the second communication node to indicate that the speculation of the prediction results in the prediction set is completed according to the actual measurement results of the existing measurement set, and to indicate that the prediction results can be used for subsequent operations. If the second communication node has the prediction function (i.e., the UE side model scenario), the second communication node needs to determine the prediction results in the prediction set according to the actual measurement results in the measurement set and send the actual measurement results and the prediction results to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the NW side model scenario), the second communication node sends the actual measurement results in the measurement set to the first communication node, and the first communication node receives the actual measurement results sent by the second communication node. Subsequently, the first communication node determines the prediction results according to the actual measurement results.

[0182] If the prediction conditions are not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold, the current channel state is unstable (optionally, it can also include that the second communication node is not within the movement range), the first communication node sends a second message to the second communication node to indicate that no measurement inference is to be performed.

[0183] In Method 1, the first message is a third indication message. The third indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node. The second message can be a sixth indication message. The sixth indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0184] The following separately introduces the carrying methods of the third indication message and the sixth indication message in Method 1.

[0185] In the way of carrying by RRC signaling, an RRC signaling is designed according to the requirements of the ASN.1 protocol for downlink message transmission, which can be named RRC_BS_AI_Available, and its value is RRC_BS_AI_Available = Boolean{ture, false}.

[0186] If the first communication node monitors that the prediction condition is met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the current channel state is stable, the first communication node sends a signaling RRC_BS_AI_Available = TRUE (equivalent to the third indication message) to the second communication node, indicating that the prediction result can be determined based on the actual measurement result currently.

[0187] If the first communication node monitors that the prediction condition is not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold, and the current channel state is unstable (optionally, it can also include that the second communication node is not within the movement range), the first communication node sends a signaling RRC_BS_AI_Available = FALSE (equivalent to the sixth indication message) to the second communication node. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all cells or beams, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision-making.

[0188] In the way of carrying by MAC CE, design a new MAC CE or use the reserved area of the existing MAC CE, and use a preset bit, for example, 1 bit, to carry the third indication message or the sixth indication message. This information can be named "AI_Available_indication". Optionally, AI_Available_indication defaults to 0 (equivalent to the third indication message), indicating that the prediction result can be determined based on the actual measurement result currently.

[0189] If the first communication node monitors that the prediction condition is met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the current channel state is stable, the first communication node sends AI_Available_indication = 0 to the second communication node.

[0190] If the first communication node monitors that the prediction condition is not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold, and the current channel state is unstable (such as SNR < X dB) (optionally, it can also include that the second communication node is not within the movement range), the first communication node sends AI_Available_indication = 1 (equivalent to the sixth indication message) to the second communication node. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all cells or beams, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision-making.

[0191] In the DCI bearer mode, the first communication node can send a third indication message (which can be named AI_Available_ON) or a sixth indication message (AI_Available_OFF) to the second communication node through the DCI carried on the downlink control channel or the downlink data channel, used to indicate whether the current prediction condition is met and whether the prediction result can be determined based on the actual measurement result. The specific application details are similar to the RRC signaling and will not be elaborated here.

[0192] In the mode of bearing the capability information of the second communication node, a second communication node capability information can be designed, which can be named measurewithavailableAI and the type is optional. If this capability information is configured for the second communication node, it means that currently it has the ability to obtain a reasonable prediction result. The first communication node selects whether to configure this capability for the second communication node according to the channel state.

[0193] If the first communication node monitors that the prediction condition is met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the current channel state is stable, the first communication node configures measurewithavailableAI (equivalent to the third indication message) for the second communication node, indicating that currently the prediction result can be determined based on the actual measurement result.

[0194] If the first communication node monitors that the prediction condition is not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold, and the current channel state is unstable (such as SNR < XdB) (optionally, it can also include that the second communication node is not within the movement range), the first communication node will not configure measurewithavailableAI (equivalent to the sixth indication message) for the second communication node. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on all cells or beams in the prediction set, and report all actual measurement results to the first communication node after the measurement for the next decision.

[0195] For method 2, the first communication node can configure the first message or the second message according to the current channel condition and other environmental conditions (such as network deployment density, indoor or outdoor scenario, etc.), and send the first message or the second message to the second communication node. In method 2, the first message is the actual measurement period of the measurement sample to mitigate the impact of channel condition changes on the prediction process. The actual measurement period of the measurement sample is carried in any one of the following: RRC signaling, MAC CE, DCI, and the capability information of the second communication node.

[0196] Optionally, the greater the correlation between the current channel and the predicted channel, the longer the actual measurement period; or, the more stable the current channel state, the longer the actual measurement period. The smaller the correlation between the current channel and the predicted channel, the shorter the actual measurement period, so as to obtain more accurate measurement results through frequent measurements.

[0197] In this Method 2, the SMTC or SSB measurement period in traditional measurements can be used as a baseline. For example, the candidate measurement period (candidate value) = {0ms, 20ms, 40ms, 80ms, 160ms}.

[0198] If the prediction condition is met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, the current channel state is stable, and the actual measurement period of the set measurement sample is greater than 0 (equivalent to the first message). If the correlation between the current channel and the predicted channel is higher, the measurement results of different beams or cells have strong correlation, and the actual measurement period can be set larger, such as 80ms; if the channel does not have strong correlation due to a changing environment or the position of the second communication node but still allows for inference, the actual measurement period can be set conservatively, such as 20ms.

[0199] If the prediction condition is not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold, the current channel state is unstable (optionally, it can also include that the second communication node is not within the movement range), the actual measurement period of the set measurement sample is set to 0 (equivalent to the second message).

[0200] The following separately introduces the carrying manner of the actual measurement period of the measurement sample in Method 2.

[0201] In the manner carried by RRC signaling, an RRC signaling is designed according to the ASN.1 protocol requirements for downlink message transmission, which can be named MEASFORAI_PERIOD and contains the actual measurement period of a single measurement sample. The greater the correlation between the current channel and the predicted channel, the longer this actual measurement period. Or, the more stable the current channel state, the longer this actual measurement period.

[0202] If the monitoring of the first communication node meets the prediction conditions, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the current channel state is stable, set the value of MEASFORAI_PERIOD to be greater than 0, indicating that the prediction result can be determined based on the actual measurement result currently. If the second communication node has the prediction function (i.e., the scenario of UE sidemodel), the second communication node needs to determine the prediction result according to the actual measurement result and send the actual measurement result and the prediction result to the first communication node. If the second communication node does not have the prediction function and the first communication node has the prediction function (i.e., the scenario of NW side model), the second communication node sends the actual measurement result to the first communication node, and the first communication node receives the actual measurement result sent by the second communication node. Subsequently, the first communication node determines the prediction result according to the actual measurement result.

[0203] If the monitoring of the first communication node does not meet the prediction conditions, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold, and the current channel state is unstable (optionally, it can also include that the second communication node is not within the movement range), set the value of MEASFORAI_PERIOD to be equal to 0. In this case, it is not necessary to distinguish between the NWside model or the UE side model. The second communication node needs to perform actual measurements on all cells or beams in the prediction set, and report all the actual measurement results to the first communication node after the measurement is completed for the next decision-making.

[0204] In the way of MAC CE bearer, design a new MAC CE or use the reserved area of the existing MAC CE, and adopt the preset bits to bear the actual measurement period of the measurement samples. This message can be named MEASFORAI_PERIOD and contains the actual measurement period of the measurement samples. The specific application details are similar to those of RRC signaling and will not be elaborated here.

[0205] In the way of DCI bearer, the first communication node can send the actual measurement period of the measurement samples to the second communication node through the DCI carried on the downlink control channel or the downlink data channel, which can be named MEASFORAI_PERIOD. The specific application details are similar to those of RRC signaling and will not be elaborated here.

[0206] In the way of bearing the capability information of the second communication node, design a second communication node capability information, which can be named MEASFORAI_PERIOD and is of optional type. This capability information is used to indicate the actual measurement period of the measurement samples. The first communication node determines the specific value of the actual measurement period according to the current channel conditions. The specific application details are similar to those of RRC signaling and will not be elaborated here.

[0207] For Method 3, the second communication node autonomously controls its current behavior. When the second communication node determines that the prediction conditions are met, that is, when at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, or the current channel state is stable, it sends a first message to the first communication node. The first communication node receives the first message sent by the second communication node. The first message indicates the prediction result in the prediction set determined based on the actual measurement results in the measurement set of the second communication node, and indicates that the prediction result can be used for subsequent operations. If the second communication node has a prediction function (i.e., the UE side model scenario), the second communication node needs to determine the prediction result in the prediction set according to the actual measurement results in the measurement set, and send the actual measurement results and the prediction result to the first communication node. If the second communication node does not have a prediction function and the first communication node has a prediction function (i.e., the NW side model scenario), the second communication node sends the actual measurement results to the first communication node, and the first communication node receives the actual measurement results sent by the second communication node. Subsequently, the first communication node determines the prediction result according to the actual measurement results.

[0208] When the second communication node determines that the prediction conditions are not met, that is, when at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold, or the current channel state is unstable, it sends a second message to the first communication node.

[0209] The first message and the second message in this method are carried in any one of the following: RRC signaling, MAC CE, UCI.

[0210] The following separately introduces the carrying methods of the first message and the second message in Method 3.

[0211] In the way of carrying by RRC signaling, an RRC signaling is designed according to the requirements of the ASN.1 protocol for uplink message transmission, which can be named RRC_UE_AI_Available. Its value is RRC_UE_AI_Available = Boolean{ture, false}.

[0212] When it is determined that the prediction conditions are met, that is, when at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, or the current channel state is stable, the second communication node sends the signaling RRC_UE_AI_Available = ture (equivalent to the first message) to the first communication node, indicating that the prediction result can be determined based on the actual measurement results currently.

[0213] If it is determined that the prediction conditions are not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold, the current channel state is unstable (e.g., SNR < X dB), the second communication node sends a signaling RRC_UE_AI_Available = FALSE (equivalent to the second message) to the first communication node. In this case, there is no need to distinguish between the NWside model or the UE side model. The second communication node needs to perform actual measurements on the beams or cells in the prediction set, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision.

[0214] In the way of being carried by MAC CE, design a new MAC CE or use the reserved area of the existing MAC CE, and use preset bits, for example, 1 bit to carry the first message or the second message. This UAI can be named AI_Available_indication.

[0215] If it is determined that the prediction conditions are met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, the current channel state is stable, the second communication node sends AI_Available_indication = 0 (equivalent to the first message) to the first communication node, indicating that the prediction result can be determined based on the actual measurement results currently.

[0216] If it is determined that the prediction conditions are not met, that is, at least one of the following is satisfied: the correlation between the current channel and the predicted channel is less than or equal to the channel correlation threshold, the current channel state is unstable (optionally, it can also include that the second communication node is not within the moving range), the second communication node sends AI_Available_indication = 1 (equivalent to the second message) to the first communication node. At this time, it is not allowed to make a prediction based on the actual measurement results. In this case, there is no need to distinguish between the NW side model or the UE side model. The second communication node needs to perform actual measurements on the beams or cells in the prediction set, and after the measurement is completed, report all the actual measurement results to the first communication node for the next decision.

[0217] In the way of being carried by UCI, the second communication node can send the first message (which can be named UE_AI_Available) to the first communication node through the UCI carried on the uplink control channel or the uplink data channel, or send the second message to the first communication node to indicate whether the prediction conditions are met currently and whether the prediction result can be determined based on the actual measurement results. The specific application details are similar to the RRC signaling and will not be elaborated here.

[0218] In the intra-cell scenario predicted in the above spatial domain, when the prediction conditions are met, the prediction results in the prediction set can be inferred based on the actual measurement results in the measurement set, thereby skipping the actual measurement to achieve the purpose of reducing the measurement delay.

[0219] In the inter-cell scenario predicted in the spatial domain, it is necessary to select a cell or beam in the measurement set for actual measurement to obtain the actual measurement results, and determine the prediction results of another cell or another beam in the prediction set according to the actual measurement results. In the inter-cell scenario predicted in the spatial domain, at least one of the following methods can be used to ensure the accuracy of the prediction results: Method 1, the first communication node monitors in real time; Method 2, the first communication node configures; Method 3, the second communication node controls independently. The specific implementation process is similar to the implementation method in the intra-cell scenario predicted in the spatial domain and will not be elaborated here. In the above inter-cell scenario predicted in the spatial domain, when the prediction conditions are met, the prediction results in the prediction set can be inferred based on the actual measurement results in the measurement set, thereby skipping the actual measurement to achieve the purpose of reducing the measurement delay and reducing the power consumption of the second communication node.

[0220] It should be noted that the implementation methods of the time domain prediction, frequency domain prediction, and spatial domain prediction described in this embodiment can be used in a cross-combined manner.

[0221] Figure 13 It is a schematic flowchart of another information transmission method provided by an embodiment. This method is applied to the second communication node. The second communication node in this embodiment can be Figure 1 the terminal device in Figure 13 As shown, the information transmission method provided by this embodiment includes the following steps.

[0222] Step 1301: Transmit a first message to the first communication node when the prediction conditions are met.

[0223] Among them, the first message is used to indicate determining the prediction results based on the actual measurement results of the second communication node.

[0224] Step 1302: Determine the prediction results according to the actual measurement results.

[0225] Among them, the second communication node has the prediction function.

[0226] The process by which the second communication node determines the prediction results according to the actual measurement results is similar to the process of Figure 2 the embodiment shown and various optional implementation methods and will not be elaborated here.

[0227] Step 1303: Send the actual measurement results and the prediction results to the first communication node.

[0228] Optionally, the information transmission method provided in this embodiment may further include the following steps: sending the actual measurement result to the first communication node. Among them, the second communication node does not have a prediction function, and the first communication node has a prediction function.

[0229] The information transmission method provided in this embodiment includes: when a prediction condition is met, transmitting a first message to the first communication node, where the first message is used to indicate a prediction result determined based on the actual measurement result of the second communication node; determining the prediction result according to the actual measurement result, where the second communication node has a prediction function; sending the actual measurement result and the prediction result to the first communication node. On the one hand, it realizes obtaining the prediction result determined based on the actual measurement result. Furthermore, a better decision can be made based on the prediction result to avoid unexpected events. Compared with the reactive scheme, the proactive scheme of this embodiment avoids unexpected events during the handover process, improves the handover performance, and enhances the reliability of communication. On the other hand, the first message is transmitted only when the prediction condition is met, thereby ensuring the validity of the obtained prediction result and further avoiding unexpected events.

[0230] In one embodiment, the actual measurement result is located in an observation window, the prediction result is located in a prediction window, and the prediction window is located after the observation window.

[0231] In one embodiment, the prediction condition includes at least one of the following: the current channel state change amount is less than the channel state change threshold; the current channel state is stable.

[0232] In one embodiment, the transmitting the first message to the first communication node includes: receiving the first message sent by the first communication node.

[0233] In one embodiment, the first message is a first indication message. The first indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0234] In one embodiment, the first message is the length information of the prediction window. The length information of the prediction window is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0235] In one embodiment, the length information of the prediction window is the quotient of the length of the prediction window and the length of the observation window. The smaller the current channel state change amount, the larger the quotient; or, the more stable the current channel state, the larger the quotient.

[0236] In one embodiment, the transmitting the first message to the first communication node includes: sending the first message to the first communication node.

[0237] In one embodiment, the first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

[0238] In one embodiment, the actual measurement result is a beam-level measurement result and / or a cell-level measurement result.

[0239] In one embodiment, the actual measurement result is the actual measurement result of the second communication node at the first frequency of the measurement cell, and the prediction result is the prediction result of the first communication node or the second communication node at the second frequency of the predicted cell between frequencies; or, the actual measurement result is the actual measurement result of the second communication node at the first frequency of the measurement beam, and the prediction result is the prediction result of the first communication node or the second communication node at the second frequency of the predicted beam between frequencies. The first frequency is different from the second frequency.

[0240] In one embodiment, the prediction condition includes at least one of the following: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range. Wherein, the current channel is the channel corresponding to the first frequency of the measurement cell, and the predicted channel is the channel corresponding to the second frequency of the predicted cell; or, the current channel is the channel corresponding to the first frequency of the measurement beam, and the predicted channel is the channel corresponding to the second frequency of the predicted beam.

[0241] In one embodiment, the transmitting the first message with the first communication node includes: receiving the first message sent by the first communication node.

[0242] In one embodiment, the first message is a second indication message. The second indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0243] In one embodiment, the first message is the actual measurement period of the measurement sample. The actual measurement period of the measurement sample is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node. The greater the correlation between the current channel and the predicted channel, and the second communication node is within the movement range, the longer the actual measurement period; or, the more stable the current channel state, and the second communication node is within the movement range, the longer the actual measurement period.

[0244] In one embodiment, the transmitting the first message with the first communication node includes: sending the first message to the first communication node.

[0245] In one embodiment, the first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

[0246] In one embodiment, the actual measurement result is the measurement result of the cells in the measurement set, and the prediction result is the prediction result of the cells in the prediction set; or, the actual measurement result is the measurement result of the beams in the measurement set, and the prediction result is the prediction result of the beams in the prediction set.

[0247] In one embodiment, the prediction condition includes at least one of the following: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold; the current channel state is stable. Wherein, the current channel is the channel corresponding to the cell in the measurement set, and the predicted channel is the channel corresponding to the cell in the prediction set; or, the current channel is the channel corresponding to the beam in the measurement set, and the predicted channel is the channel corresponding to the beam in the prediction set.

[0248] In one embodiment, the transmitting the first message to the first communication node includes: receiving the first message sent by the first communication node.

[0249] In one embodiment, the first message is a third indication message. The third indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0250] In one embodiment, the first message is the actual measurement period of the measurement sample. The actual measurement period of the measurement sample is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node. The greater the correlation between the current channel and the predicted channel, the longer the actual measurement period; or, the more stable the current channel state, the longer the actual measurement period.

[0251] In one embodiment, the transmitting the first message to the first communication node includes: sending the first message to the first communication node.

[0252] In one embodiment, the first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

[0253] In one embodiment, the first message is further used to indicate that the prediction result can be used for subsequent operations.

[0254] Figure 14 FIG. is a schematic structural diagram of an information transmission device provided by an embodiment. The device is disposed in the first communication node. As Figure 14 shown, the information transmission device includes the following modules: a first transmission module 1401 and a receiving module 1402.

[0255] The first transmission module 1401 is configured to transmit a first message to a second communication node when a prediction condition is met.

[0256] Wherein, the first message is used to indicate a prediction result determined based on an actual measurement result of the second communication node.

[0257] The receiving module 1402 is configured to receive the actual measurement result and the prediction result sent by the second communication node.

[0258] Wherein, the second communication node has a prediction function.

[0259] In one embodiment, the receiving module 1402 is further configured to receive the actual measurement result sent by the second communication node. Wherein, the second communication node does not have a prediction function. The apparatus further includes a first determination module configured to determine the prediction result according to the actual measurement result. Wherein, the first communication node has a prediction function.

[0260] In one embodiment, the actual measurement result is located in an observation window, the prediction result is located in a prediction window, and the prediction window is located after the observation window.

[0261] In one embodiment, the prediction condition includes at least one of the following: the change amount of the current channel state is less than a channel state change threshold; the current channel state is stable.

[0262] In one embodiment, the first transmission module 1401 is configured to send the first message to the second communication node.

[0263] In one embodiment, the first message is a first indication message. The first indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0264] In one embodiment, the first message is the length information of the prediction window. The length information of the prediction window is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0265] In one embodiment, the length information of the prediction window is the quotient of the length of the prediction window and the length of the observation window. The smaller the change amount of the current channel state, the larger the quotient; or, the more stable the current channel state, the larger the quotient.

[0266] In one embodiment, the first transmission module 1401 is configured to receive the first message sent by the second communication node.

[0267] In one embodiment, the first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

[0268] In one embodiment, the actual measurement result is a beam-level measurement result and / or a cell-level measurement result.

[0269] In one embodiment, the actual measurement result is the actual measurement result of the second communication node at the first frequency of the measurement cell, and the prediction result is the prediction result of the first communication node or the second communication node at the second frequency of the predicted cell between frequencies; or, the actual measurement result is the actual measurement result of the second communication node at the first frequency of the measurement beam, and the prediction result is the prediction result of the first communication node or the second communication node at the second frequency of the predicted beam between frequencies. The first frequency is different from the second frequency.

[0270] In one embodiment, the prediction condition includes at least one of the following: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range. Wherein, the current channel is the channel corresponding to the first frequency of the measurement cell, and the predicted channel is the channel corresponding to the second frequency of the predicted cell; or, the current channel is the channel corresponding to the first frequency of the measurement beam, and the predicted channel is the channel corresponding to the second frequency of the predicted beam.

[0271] In one embodiment, the first transmission module 1401 is configured to send the first message to the second communication node.

[0272] In one embodiment, the first message is a second indication message. The second indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0273] In one embodiment, the first message is the actual measurement period of the measurement sample. The actual measurement period of the measurement sample is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node. The greater the correlation between the current channel and the predicted channel, and the second communication node is within the movement range, the longer the actual measurement period; or, the more stable the current channel state, and the second communication node is within the movement range, the longer the actual measurement period.

[0274] In one embodiment, the first transmission module 1401 is configured to receive the first message sent by the second communication node.

[0275] In one embodiment, the first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

[0276] In one embodiment, the actual measurement result is the measurement result of the cells in the measurement set, and the prediction result is the prediction result of the cells in the prediction set; or, the actual measurement result is the measurement result of the beams in the measurement set, and the prediction result is the prediction result of the beams in the prediction set.

[0277] In one embodiment, the prediction conditions include at least one of the following: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold; the current channel state is stable. Wherein, the current channel is the channel corresponding to the cell in the measurement set, and the predicted channel is the channel corresponding to the cell in the prediction set; or, the current channel is the channel corresponding to the beam in the measurement set, and the predicted channel is the channel corresponding to the beam in the prediction set.

[0278] In one embodiment, the first transmission module 1401 is configured to send the first message to the second communication node.

[0279] In one embodiment, the first message is a third indication message. The third indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0280] In one embodiment, the first message is the actual measurement period of the measurement sample. The actual measurement period of the measurement sample is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node. The greater the correlation between the current channel and the predicted channel, the longer the actual measurement period; or, the more stable the current channel state, the longer the actual measurement period.

[0281] In one embodiment, the first transmission module 1401 is configured to receive the first message sent by the second communication node.

[0282] In one embodiment, the first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

[0283] In one embodiment, the first message is further used to indicate that the prediction result can be used for subsequent operations.

[0284] The information transmission device provided in this embodiment is used to execute the information transmission method performed by the first communication node in any of the above embodiments. The implementation principle and technical effects of the parameter configuration device provided in this embodiment are similar and will not be elaborated here.

[0285] Figure 15 It is a schematic structural diagram of another information transmission device provided in an embodiment. This device is disposed in the second communication node. As Figure 15As shown, the information transmission device includes the following modules: a second transmission module 1501, a second determination module 1502, and a sending module 1503.

[0286] The second transmission module 1501 is configured to transmit a first message to a first communication node when a prediction condition is met.

[0287] Wherein, the first message is used to indicate a prediction result determined based on an actual measurement result of the second communication node.

[0288] The second determination module 1502 is configured to determine the prediction result according to the actual measurement result.

[0289] Wherein, the second communication node has a prediction function.

[0290] The sending module 1503 is configured to send the actual measurement result and the prediction result to the first communication node.

[0291] In one embodiment, the sending module 1503 is further configured to send the actual measurement result to the first communication node. Wherein, the second communication node does not have a prediction function, and the first communication node has a prediction function.

[0292] In one embodiment, the actual measurement result is located in an observation window, the prediction result is located in a prediction window, and the prediction window is located after the observation window.

[0293] In one embodiment, the prediction condition includes at least one of the following: a current channel state change amount is less than a channel state change threshold; the current channel state is stable.

[0294] In one embodiment, the second transmission module 1501 is configured to receive a first message sent by the first communication node.

[0295] In one embodiment, the first message is a first indication message. The first indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, and the capability information of the second communication node.

[0296] In one embodiment, the first message is the length information of the prediction window. The length information of the prediction window is carried in any one of the following: RRC signaling, MAC CE, DCI, and the capability information of the second communication node.

[0297] In one embodiment, the length information of the prediction window is a quotient of the length of the prediction window and the length of the observation window. The smaller the current channel state change amount, the larger the quotient; or, the more stable the current channel state, the larger the quotient.

[0298] In one embodiment, the second transmission module 1501 is configured to send a first message to the first communication node.

[0299] In one embodiment, the first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

[0300] In one embodiment, the actual measurement result is a beam-level measurement result and / or a cell-level measurement result.

[0301] In one embodiment, the actual measurement result is the actual measurement result of the second communication node at the first frequency of the measured cell, and the prediction result is the prediction result of the first communication node or the second communication node at the second frequency of the predicted cell between frequencies; or, the actual measurement result is the actual measurement result of the second communication node at the first frequency of the measured beam, and the prediction result is the prediction result of the first communication node or the second communication node at the second frequency of the predicted beam between frequencies. The first frequency is different from the second frequency.

[0302] In one embodiment, the prediction condition includes at least one of the following: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold, and the second communication node is within the movement range; the current channel state is stable, and the second communication node is within the movement range. Wherein, the current channel is the channel corresponding to the measured cell at the first frequency, and the predicted channel is the channel corresponding to the predicted cell at the second frequency; or, the current channel is the channel corresponding to the measured beam at the first frequency, and the predicted channel is the channel corresponding to the predicted beam at the second frequency.

[0303] In one embodiment, the second transmission module 1501 is configured to receive the first message sent by the first communication node.

[0304] In one embodiment, the first message is a second indication message. The second indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0305] In one embodiment, the first message is the actual measurement period of the measurement sample. The actual measurement period of the measurement sample is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node. The greater the correlation between the current channel and the predicted channel, and the second communication node is within the movement range, the longer the actual measurement period; or, the more stable the current channel state, and the second communication node is within the movement range, the longer the actual measurement period.

[0306] In one embodiment, the second transmission module 1501 is configured to send a first message to the first communication node.

[0307] In one embodiment, the first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

[0308] In one embodiment, the actual measurement result is the measurement result of the cells in the measurement set, and the prediction result is the prediction result of the cells in the prediction set; or, the actual measurement result is the measurement result of the beams in the measurement set, and the prediction result is the prediction result of the beams in the prediction set.

[0309] In one embodiment, the prediction condition includes at least one of the following: the correlation between the current channel and the predicted channel is greater than the channel correlation threshold; the current channel state is stable. Wherein, the current channel is the channel corresponding to the cell in the measurement set, and the predicted channel is the channel corresponding to the cell in the prediction set; or, the current channel is the channel corresponding to the beam in the measurement set, and the predicted channel is the channel corresponding to the beam in the prediction set.

[0310] In one embodiment, the second transmission module 1501 is configured to receive the first message sent by the first communication node.

[0311] In one embodiment, the first message is a third indication message. The third indication message is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node.

[0312] In one embodiment, the first message is the actual measurement period of the measurement sample. The actual measurement period of the measurement sample is carried in any one of the following: RRC signaling, MAC CE, DCI, the capability information of the second communication node. The greater the correlation between the current channel and the predicted channel, the longer the actual measurement period; or, the more stable the current channel state, the longer the actual measurement period.

[0313] In one embodiment, the second transmission module 1501 is configured to send a first message to the first communication node.

[0314] In one embodiment, the first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

[0315] In one embodiment, the first message is further used to indicate that the prediction result can be used for subsequent operations.

[0316] The information transmission device provided in this embodiment is used to execute the information transmission method performed by the second communication node in any of the above embodiments. The implementation principle and technical effects of the parameter configuration device provided in this embodiment are similar and will not be elaborated here.

[0317] The embodiments of the present application also provide a communication node, including: a processor, which is configured to implement the method provided in any embodiment of the present application when executing a computer program. Specifically, the communication node may be a first communication node or a second communication node. The first communication node includes: a processor, which is configured to implement the information transmission method provided in any embodiment of the present application when executing a computer program; the second communication node includes: a processor, which is configured to implement the information transmission method provided in any embodiment of the present application when executing a computer program. Exemplarily, the first communication node may be an access network device provided in any embodiment of the present application, such as a base station; the second communication node may be a terminal device provided in any embodiment of the present application, such as a UE. The present application does not make specific limitations in this regard.

[0318] Figure 16 FIG. 4 is a schematic diagram of a first communication node provided by an embodiment. As Figure 16 shown, the first communication node includes a processor 60, a memory 61, and a communication interface 62; the number of processors 60 in the first communication node may be one or more, Figure 16 and one processor 60 is taken as an example herein; the processor 60, the memory 61, and the communication interface 62 in the first communication node may be connected through a bus or other means, Figure 16 and the connection through a bus is taken as an example herein. The bus represents one or more of several types of bus structures, including a memory bus or a memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any bus structure in a variety of bus structures.

[0319] The memory 61, as a computer-readable storage medium, may be configured to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the methods in the embodiments of the present application. The processor 60 executes at least one functional application and data processing of the first communication node by running the software programs, instructions, and modules stored in the memory 61, that is, implements the above-mentioned method.

[0320] The memory 61 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the terminal, etc. In addition, the memory 61 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some instances, the memory 61 may include a memory remotely provided with respect to the processor 60, and these remote memories may be connected to the first communication node through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a network, a mobile communication network, and combinations thereof.

[0321] The communication interface 62 can be set for receiving and sending data.

[0322] Figure 17 It is a schematic diagram of the second communication node provided by an embodiment. As Figure 17 shown, the second communication node can be implemented in various forms. The second communication node in this application may include, but is not limited to, mobile terminal devices such as mobile phones, smart phones, laptop computers, digital broadcast receivers, personal digital assistants (PDAs), tablet computers (Portable Devices, PADs), portable media players (PMPs), navigation devices, in-vehicle terminal devices, in-vehicle display terminals, in-vehicle electronic rearview mirrors, etc., and fixed terminal devices such as digital televisions (TVs), desktop computers, etc.

[0323] As Figure 17 shown, the second communication node 50 may include a wireless communication unit 51, an audio / video (A / V) input unit 52, a user input unit 53, a sensing unit 54, an output unit 55, a memory 56, an interface unit 57, a processor 58, a power supply unit 59, and so on. Figure 17 The second communication node including various components is shown, but it should be understood that it is not required to implement all the shown components. More or fewer components may be alternatively implemented.

[0324] In this embodiment, the wireless communication unit 51 allows radio communication between the second communication node 50 and the first communication node or network. The A / V input unit 52 is configured to receive audio or video signals. The user input unit 53 can generate key input data according to a command input by the user to control various operations of the second communication node 50. The sensing unit 54 monitors the current state of the second communication node 50, the position of the second communication node 50, the presence or absence of a touch input by the user to the second communication node 50, the orientation of the second communication node 50, the acceleration or deceleration movement and direction of the second communication node 50, etc., and generates a command or signal for controlling the operation of the second communication node 50. The interface unit 57 serves as an interface through which at least one external device can be connected to the second communication node 50. The output unit 55 is configured to provide an output signal in a visual, audio, and / or tactile manner. The memory 56 can store software programs for processing and control operations executed by the processor 58, etc., or can temporarily store data that has been output or will be output. The memory 56 can include at least one type of storage medium. Moreover, the second communication node 50 can cooperate with a network storage device that performs the storage function of the memory 56 through a network connection. The processor 58 generally controls the overall operation of the second communication node 50. The power supply unit 59 receives external power or internal power under the control of the processor 58 and provides appropriate power required to operate various elements and components.

[0325] The processor 58 executes at least one functional application and data processing by running the program stored in the memory 56, for example, implementing the method provided in the embodiment of the present application.

[0326] The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method provided in any embodiment of the present application is implemented.

[0327] The computer storage medium of the embodiments of the present application may adopt any combination of one or more computer-readable media. The computer-readable media may be computer-readable signal media or computer-readable storage media. The computer-readable storage media may be, for example, but not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or components, or any combination of the above. The computer-readable storage media includes (a non-exhaustive list): electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), electrically erasable, programmable read-only memory (EPROM), flash memory, optical fibers, portable compact disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above. In the present application, the computer-readable storage media may be any tangible medium that contains or stores a program, and the program may be used by or in combination with an instruction execution system, device, or component.

[0328] The computer-readable signal media may include data signals propagated in a baseband or as part of a carrier wave, and the data signals carry computer-readable program codes. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal media may also be any computer-readable media other than the computer-readable storage media, and the computer-readable media may send, propagate, or transmit a program for use by or in combination with an instruction execution system, device, or component.

[0329] The program codes contained on the computer-readable media may be transmitted by any appropriate medium, including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the above.

[0330] The embodiments of the present application also provide a computer program product, including a computer program, and the computer program implements the information transmission method provided in any embodiment of the present application when executed by a processor.

[0331] Computer program code for performing the operations of this disclosure can be written in one or more programming languages or combinations of multiple programming languages. The programming languages include object-oriented programming languages (such as Java, Smalltalk, C++, Ruby, Go), and also include conventional procedural programming languages (such as the "C" language or similar programming languages). The program code can be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network (including a Local Area Network (LAN) or a Wide Area Network (WAN)), or, it can be connected to an external computer (for example, by using an Internet service provider to connect through the Internet).

[0332] Those skilled in the art should understand that the term user terminal encompasses any suitable type of wireless user device, such as a mobile phone, a portable data processing device, a portable network browser, or an in-vehicle mobile station.

[0333] In general, various embodiments of this application can be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software that can be executed by a controller, a microprocessor, or other computing devices, although this application is not limited thereto.

[0334] Embodiments of this application can be implemented by a data processor of a mobile device executing computer program instructions, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages.

[0335] Any block diagram of a logical process in the attached drawings of the present application may represent program steps, or may represent interconnected logical circuits, modules and functions, or may represent a combination of program steps and logical circuits, modules and functions. A computer program may be stored in a memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory devices and systems (Digital Versatile Disc DVD or CD optical disc), etc. A computer-readable medium may include a non-transitory storage medium. The data processor may be of any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), and processors based on multi-core processor architectures.

Claims

1. An information transmission method, characterized in that: Applied to a first communication node, the method comprises: When the prediction condition is met, transmitting a first message to the second communication node; wherein the first message is used to indicate that the prediction result is determined based on the actual measurement result of the second communication node; Receive the actual measurement result and the prediction result sent by the second communication node; wherein the second communication node has a prediction function.

2. The method according to claim 1, characterized in that The method further comprises: Receiving an actual measurement result sent by the second communication node; wherein the second communication node does not have a prediction function; The prediction result is determined according to the actual measurement result; wherein the first communication node has a prediction function.

3. The method according to claim 1 or 2, characterized in that: The actual measurement result is located in an observation window, the prediction result is located in a prediction window, and the prediction window is located after the observation window.

4. The method according to claim 3, characterized in that The prediction condition includes at least one of the following: The current channel state change is less than the channel state change threshold; the current channel state is stable.

5. The method according to claim 3, characterized in that: The transmitting the first message with the second communication node comprises: The first message is sent to the second communication node.

6. The method according to claim 5, characterized in that The first message is a first indication message; The first indication message is carried in any one of the following: radio resource control RRC signaling, medium access control element MAC CE, downlink control information DCI, and capability information of the second communication node.

7. The method according to claim 5, characterized in that The first message is the length information of the prediction window; The prediction window length information is carried in any one of the following: RRC signaling, MAC CE, DCI, and capability information of the second communication node.

8. The method according to claim 7, characterized in that The length information of the prediction window is a quotient of the length of the prediction window and the length of the observation window; The smaller the change in the current channel state is, the larger the quotient value is; or, the more stable the current channel state is, the larger the quotient value is.

9. The method according to claim 3, characterized in that: The transmitting the first message with the second communication node comprises: Receive a first message sent by the second communication node.

10. The method according to claim 9, characterized in that The first message is carried in any one of the following: RRC signaling, MAC CE, uplink control information UCI.

11. The method according to claim 3, characterized in that The actual measurement result is a beam-level measurement result and / or a cell-level measurement result.

12. The method according to claim 1 or 2, characterized in that: The actual measurement result is an actual measurement result of the second communication node at the first frequency of the measurement cell, and the prediction result is a prediction result of the first communication node or the second communication node at the second frequency of the prediction cell between frequencies; or, the actual measurement result is an actual measurement result of the second communication node at the first frequency of the measurement beam, and the prediction result is a prediction result of the first communication node or the second communication node at the second frequency of the prediction beam between frequencies; The first frequency is different from the second frequency.

13. The method according to claim 12, characterized in that The prediction condition includes at least one of the following: The correlation between the current channel and the predicted channel is greater than a channel correlation threshold, and the second communication node is within the motion range; The current channel state is stable, and the second communication node is within the motion range; The current channel is the channel corresponding to the measured cell at the first frequency, and the predicted channel is the channel corresponding to the predicted cell at the second frequency; or, the current channel is the channel corresponding to the measurement beam at the first frequency, and the predicted channel is the channel corresponding to the predicted beam at the second frequency.

14. The method according to claim 12, characterized in that The transmitting the first message with the second communication node comprises: The first message is sent to the second communication node.

15. The method according to claim 14, characterized in that The first message is a second indication message; The second indication message is carried in any one of the following items: RRC signaling, MAC CE, DCI, and capability information of the second communication node.

16. The method according to claim 14, characterized in that The first message is an actual measurement period of the measurement sample; The actual measurement period of the measurement sample is carried in any one of the following: RRC signaling, MAC CE, DCI, capability information of the second communication node; The greater the correlation between the current channel and the predicted channel, and the second communication node is within the motion range, the longer the actual measurement period is; or, the more stable the current channel state is, and the second communication node is within the motion range, the longer the actual measurement period is.

17. The method according to claim 12, characterized in that The transmitting the first message with the second communication node comprises: Receive a first message sent by the second communication node.

18. The method according to claim 17, characterized in that The first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

19. The method according to claim 1 or 2, characterized in that: The actual measurement result is a measurement result of a cell in a measurement set, and the prediction result is a prediction result of a cell in a prediction set; or, The actual measurement result is the measurement result of the beam in the measurement set, and the prediction result is the prediction result of the beam in the prediction set.

20. The method according to claim 19, characterized in that The prediction condition includes at least one of the following: The correlation between the current channel and the predicted channel is greater than the channel correlation threshold; the current channel state is stable; The current channel is a channel corresponding to a cell in a measurement set, and the predicted channel is a channel corresponding to a cell in a prediction set; or, the current channel is a channel corresponding to a beam in a measurement set, and the predicted channel is a channel corresponding to a beam in a prediction set.

21. The method according to claim 19, characterized in that The transmitting the first message with the second communication node comprises: The first message is sent to the second communication node.

22. The method according to claim 21, characterized in that The first message is a third indication message; The third indication message is carried in any one of the following items: RRC signaling, MAC CE, DCI, and capability information of the second communication node.

23. The method according to claim 21, characterized in that The first message is an actual measurement period of the measurement sample; The actual measurement period of the measurement sample is carried in any one of the following: RRC signaling, MAC CE, DCI, capability information of the second communication node; The greater the correlation between the current channel and the predicted channel, the longer the actual measurement period; or, the more stable the current channel state, the longer the actual measurement period.

24. The method according to claim 19, characterized in that The transmitting the first message with the second communication node comprises: Receive a first message sent by the second communication node.

25. The method according to claim 24, characterized in that The first message is carried in any one of the following: RRC signaling, MAC CE, UCI.

26. The method according to claim 1 or 2, characterized in that The first message is also used to indicate that the prediction result can be used for subsequent operations.

27. An information transmission method, characterized in that: Applied to a second communication node, the method comprises: When the prediction condition is met, transmitting a first message to the first communication node; wherein the first message is used to indicate that the prediction result is determined based on the actual measurement result of the second communication node; Determining the prediction result according to the actual measurement result; wherein the second communication node has a prediction function; The actual measurement result and the prediction result are sent to the first communication node.

28. The method according to claim 27, characterized in that The method further comprises: The actual measurement result is sent to the first communication node; wherein the second communication node does not have a prediction function, and the first communication node has a prediction function.

29. A communication node, characterized in that: include: processor; The processor is used to implement the information transmission method as described in any one of claims 1 to 26 when executing a computer program, or to implement the information transmission method as described in any one of claims 27 to 28.

30. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, it implements the information transmission method as described in any one of claims 1 to 26, or implements the information transmission method as described in any one of claims 27 to 28.

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