WO2024026885A1 - 一种路径切换的方法及装置 - Google Patents

一种路径切换的方法及装置 Download PDF

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Publication number
WO2024026885A1
WO2024026885A1 PCT/CN2022/110704 CN2022110704W WO2024026885A1 WO 2024026885 A1 WO2024026885 A1 WO 2024026885A1 CN 2022110704 W CN2022110704 W CN 2022110704W WO 2024026885 A1 WO2024026885 A1 WO 2024026885A1
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Prior art keywords
target node
terminal device
path switching
preset
indication information
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PCT/CN2022/110704
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English (en)
French (fr)
Inventor
杨星
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北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/110704 priority Critical patent/WO2024026885A1/zh
Priority to CN202280003028.3A priority patent/CN115552970A/zh
Publication of WO2024026885A1 publication Critical patent/WO2024026885A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a method and device for path switching.
  • handover failure may occur. This may be caused by the network device sending the switching command too late, or by the unreasonable switching conditions of the network configuration. Therefore, how to avoid path switching failure is an issue that needs to be solved urgently.
  • Embodiments of the present disclosure provide a method and device for path switching, which avoids path switching failure and improves the performance of the communication system by synchronizing auxiliary information for switching to the target node to the network device.
  • embodiments of the present disclosure provide a method for path switching, which is executed by a terminal device.
  • the method includes: in response to being triggered to perform path switching to a target node, determining whether a preset condition is satisfied; in response to the If the preset condition is met, first indication information is sent to the network device, where the first indication information is used to indicate auxiliary information for switching to the target node.
  • the terminal device when the terminal device is triggered to perform path switching to the target node, it first determines whether the preset condition is met, and when it is determined that the preset condition is met, it sends first indication information to the network device. Therefore, by synchronizing the auxiliary information for switching to the target node to the network device, path switching failure is avoided and the performance of the communication system is improved.
  • embodiments of the present disclosure provide a method for path switching, which is performed by a network device.
  • the method includes: receiving first indication information sent by a terminal device, where the first indication information is used to instruct the terminal device. Auxiliary information for switching to the target node when the path switching to the target node is triggered and the preset conditions are met.
  • an embodiment of the present disclosure provides a terminal device, including:
  • a processing module configured to perform path switching to the target node in response to being triggered and determine whether the preset conditions are met
  • a transceiver module configured to send first indication information to the network device in response to the preset condition being met, where the first indication information is used to indicate auxiliary information for switching to the target node.
  • an embodiment of the present disclosure provides a network device, including:
  • a transceiver module configured to receive first instruction information sent by a terminal device, wherein the first instruction information is used to instruct the terminal device to perform path switching to the target node when being triggered and the preset conditions are met. Describes auxiliary information for target node switching.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the second aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.
  • embodiments of the present disclosure provide a communication system that includes the terminal device described in the third aspect and the network device described in the fourth aspect, or the system includes the communication device described in the fifth aspect and the network device described in the fourth aspect.
  • the communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect and the communication device according to the tenth aspect. communication device.
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the terminal device is caused to execute the above-mentioned second aspect. method.
  • the present disclosure also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.
  • the present disclosure also provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect.
  • the present disclosure provides a chip system, which includes at least one processor and an interface for supporting a terminal device to implement the functions involved in the first aspect, for example, determining or processing data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present disclosure provides a chip system, which includes at least one processor and an interface for supporting a network device to implement the functions involved in the second aspect, for example, determining or processing data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to perform the method described in the second aspect.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure
  • Figure 2 is a schematic flowchart of a path switching method provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of another path switching method provided by an embodiment of the present disclosure.
  • Figure 4 is a schematic flowchart of another path switching method provided by an embodiment of the present disclosure.
  • Figure 5 is a schematic flowchart of another path switching method provided by an embodiment of the present disclosure.
  • Figure 6 is a schematic flowchart of another path switching method provided by an embodiment of the present disclosure.
  • Figure 7 is a schematic flowchart of another path switching method provided by an embodiment of the present disclosure.
  • Figure 8 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
  • Figure 9 is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.
  • the network equipment configures CHO handover commands for the terminal equipment in advance, including handover target cell configuration and handover trigger conditions.
  • the terminal device stores the received CHO handover command, performs radio resource management (RRM) measurements, and determines whether the handover conditions are met.
  • RRM radio resource management
  • the terminal device initiates a handover process to the target cell.
  • the terminal device may not be directly connected to the network device but may communicate with the network device through a relay, such as a relay terminal device.
  • a relay such as a relay terminal device.
  • the terminal equipment that is not connected to the network equipment is called the remote terminal equipment (remote UE), and the terminal equipment that provides the relay function can be called the relay terminal equipment (relay UE).
  • the direct connection between a terminal device and a network device is called a direct link
  • the connection between a terminal device and a network device through a relay terminal device is called an indirect link.
  • the target cell or target relay corresponding to the handover command or handover condition The target cell or target relay corresponding to the handover command or handover condition.
  • AI is the study of using computers to simulate certain human thinking processes and intelligent behaviors.
  • Machine learning algorithm is one of the most important implementation methods of artificial intelligence technology at present.
  • Machine learning can obtain a model through a large amount of training data, and the model can predict events.
  • Use handover-related big data to train the AI model, and the resulting AI model can predict the success rate or failure probability of handover to a certain cell based on the real-time network environment of the terminal device.
  • FIG. 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include but is not limited to one network device and one terminal device.
  • the number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more devices may be included. Network equipment, two or more terminal devices.
  • the communication system shown in Figure 1 includes a network device 11 and a terminal device 12 as an example.
  • LTE long term evolution
  • 5th generation fifth generation
  • 5G new radio (NR) system 5th generation new radio
  • the network device 11 in the embodiment of the present disclosure is an entity on the network side that is used to transmit or receive signals.
  • the network device 11 may be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other base stations in future mobile communication systems. Or access nodes in wireless fidelity (WiFi) systems, etc.
  • the embodiments of the present disclosure do not limit the specific technologies and specific equipment forms used by network equipment.
  • the network equipment provided by the embodiments of the present disclosure may be composed of a centralized unit (CU) and a distributed unit (DU).
  • the CU may also be called a control unit (control unit).
  • the structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 12 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.
  • the terminal device can implement the method shown in any embodiment of FIGS. 2 to 5 of the present disclosure
  • the network device can implement the method shown in the embodiment of FIGS. 6 to 7 of the present disclosure.
  • the network device will first send a handover request to the handover target cell based on the measurement report results of the terminal device. After the target cell is confirmed, it will then send a handover command (reconfiguration with sync) to the terminal device, carrying a target cell. configuration information. After receiving the handover command, the terminal device initiates a handover process to the target cell.
  • the network device can configure the CHO handover command for the terminal device in advance, including the handover target cell configuration and handover trigger conditions, where the handover target cell configuration is the reconfiguration message provided by the target cell.
  • the terminal device stores the received CHO handover command, performs RRM measurement, and determines whether the handover conditions are met.
  • the terminal device initiates a handover process to the target cell. This can avoid wireless link switching failure caused by the base station sending the switching command too late, but there are still situations where wireless link switching fails due to unreasonable switching conditions configured by the network equipment.
  • This paper mainly proposes a path switching method for the situation where the switching fails due to the switching command sent by the network too late or the switching conditions of the network configuration are unreasonable.
  • the terminal device can first determine whether the switch to the target node will meet the preset conditions before performing the path switch. When the preset conditions are met, the terminal device can send auxiliary information for the switch to the target node to the network device. , so that the network device can select a new target node for the terminal device, or update the switching conditions, thereby avoiding the failure of the terminal device to perform path switching.
  • Figure 2 is a schematic flowchart of a path switching method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 2, the method may include but is not limited to the following steps:
  • Step 201 In response to being triggered to perform path switching to the target node, determine whether the preset conditions are met.
  • the target node in the direct link, is the target cell corresponding to the handover command or the satisfied path switching condition; in the indirect link, the target node is the target relay corresponding to the handover command or the satisfied path switching condition.
  • the terminal device is triggered to perform path switching to the target node. It may be that the terminal device receives a path switching command to the target node sent by the network device; or it may be that the terminal device determines that the path satisfies the path based on the channel measurement results. Switch conditions.
  • the terminal device when the terminal device receives the path switching command sent by the network device to switch to the target node, it first determines whether the current network environment meets the preset conditions; or, the terminal device determines that the path switching is satisfied based on the current channel measurement results. When conditions are met, first determine whether the current network environment meets the preset conditions.
  • the preset condition is a condition used to characterize whether the switching process to the target node will fail. For example, the probability of successful handover, the probability of failed handover, etc.
  • the channel measurement results are used to characterize the current channel quality of the target node. For example, if the target node is a target cell, the channel measurement result can be the reference signal receiving power (RSRP) of the target cell, or the reference signal receiving quality (RSRQ) of the target cell. ; Or, if the target node is a target relay, the channel measurement result is sidelink RSRP, or sidelink RSRQ, etc. This disclosure does not limit this.
  • RSRP reference signal receiving power
  • RSRQ reference signal receiving quality
  • the terminal device can determine the fulfillment of the preset conditions based on the current channel measurement results; or, it can also use an AI model generated by pre-training to determine the fulfillment of the preset conditions, etc. This disclosure does not cover this. Make limitations.
  • path switching includes switching from a direct link to a direct link, or from a direct link to an indirect link, or from an indirect link to a direct link, or from an indirect link to a direct link, etc. .
  • the terminal device For example, if the terminal device is currently on the direct link, it receives a switching instruction or determines that the target node is the target relay according to the path switching conditions, that is, it is triggered to perform switching from the direct link to the indirect link; or if the terminal device is currently on the indirect link link, the received switching instruction or the target node is determined to be the target cell according to the path switching conditions, that is, it is triggered to perform switching from the indirect link to the direct link.
  • Step 202 In response to the preset condition being met, send first indication information to the network device, where the first indication information is used to indicate auxiliary information for switching to the target node.
  • meeting the preset conditions includes determining that path switching to the target node will fail.
  • the first indication information may include at least one of the following: target node identification, path switching success probability, path switching failure probability, channel measurement results between the terminal device and the target node, and path switching failure indication information.
  • the failure probability of path switching to the target node can be determined by the terminal device based on the current channel measurement results; or, the terminal device can also determine the failure probability of path switching to the target node based on the results output by the AI model. It is determined when it is greater than a certain threshold; or it can also be determined when the terminal device determines that the success probability of path switching to the target node is less than a certain threshold based on the results output by the AI model; or it can also be determined when it is performing path switching to the target node.
  • the failure probability is greater than a certain threshold, and the success probability when performing path switching to the target node is less than a certain threshold, etc. This disclosure does not limit this.
  • the terminal device may determine that path switching to the target node will fail when determining that the output value of the first preset artificial intelligence AI model is a preset value.
  • the preset value is a value output by the first preset AI model to indicate that the switching result is a failure.
  • the first preset AI model is a pre-generated model used to predict whether the terminal device will succeed in switching paths to the target node corresponding to the input target node identification.
  • the terminal device inputs the identification of the target node, the current channel measurement result, the channel measurement result within the preset period before the current time, and the location information of the terminal device into the first preset AI model, and then obtains The output value of the first AI model.
  • the current channel measurement results may include current channel measurement results between the terminal device and the target node, and may also include current channel measurement results between the terminal device and other nodes.
  • the terminal device can also input the channel measurement result within the preset period at the current moment into the first preset AI model. For example, the channel measurement results within the first 10 seconds before the current time are input into the first preset AI model, or the channel measurement results from the first two times before the current time are input into the first preset AI model, etc., this disclosure There is no restriction on this.
  • the terminal device may also determine that path switching to the target node will fail when the probability value output by the second network model meets the preset requirements.
  • the second preset AI model is a pre-generated model used to predict the probability value of a successful handover when the terminal device performs path switching to the target node corresponding to the input target node identification, or a model used to predict the probability value of a failed handover. Model.
  • preset requirements can be preset thresholds. For example, it can be a probability threshold of handover failure. When the probability value of handover failure output by the second preset AI model is greater than the probability threshold of handover failure, the first indication information needs to be reported.
  • the preset requirement may also be a probability threshold for successful handover. When the probability value for successful handover output by the second preset AI model is less than the probability threshold for successful handover, the first indication information needs to be reported, etc. This disclosure does not cover this. Make limitations.
  • the terminal device can input the identification of the target node, the current channel measurement result, the channel measurement result within the preset period before the current time, and the location information of the terminal device into the second preset AI model to obtain the second AI model The probability value of the output.
  • the terminal device can determine the preset requirements according to the agreement; or it can also determine the preset requirements according to the preset configuration information; or it can also determine the preset requirements according to the instructions of the network device, which is not covered by this disclosure. limited.
  • the network device can use the first information to configure different preset requirements for different target nodes or configure different preset conditions for nodes with different frequencies.
  • the terminal device may determine the preset requirement associated with the identity of the target node and/or the frequency at which the target node is located based on the first configuration information sent by the network device.
  • the first configuration information sent by the network device indicates three preset requirements, in which preset requirement 1 corresponds to frequency range A, preset requirement 2 corresponds to frequency range B, and preset requirement 3 corresponds to frequency range C. Therefore, when the terminal device is triggered to perform path switching to the target node N, it can use the second preset AI model to predict and determine the probability of handover failure to be x based on the current channel measurement results and previous channel measurement results.
  • the frequency range of the target node N is B, then it can be determined whether x meets the preset requirement 2. If satisfied, the first indication information can be sent to the network device. If it is not satisfied, it means that the probability of successful handover is relatively high, so that the path can be switched directly to the target node A.
  • the terminal device before switching to the target node, if the terminal device determines that the path switch will fail, it first sends the first indication information to the network device to assist the network device in re-determining the target node or updating the switching condition configuration, thereby trying to avoid Path switching failed.
  • the terminal device when the terminal device is triggered to switch to the target node, it can first determine whether the preset conditions are met. If the preset conditions are met, it can send first instruction information to the network device to instruct the switch to the target node. Supplementary information. Therefore, by synchronizing the auxiliary information for switching to the target node to the network device, path switching failure is avoided and the performance of the communication system is improved.
  • FIG. 3 is a schematic flowchart of another path switching method provided by an embodiment of the present disclosure.
  • the method is executed by a terminal device. As shown in Figure 3, the method may include but is not limited to the following steps:
  • Step 301 In response to being triggered to perform path switching to the target node, determine whether the preset conditions are met.
  • Step 302 In response to the preset condition being met, send first indication information to the network device, where the first indication information is used to indicate auxiliary information for switching to the target node.
  • Step 303 Start the preset timer.
  • the terminal device may start the preset timer when it determines that the preset condition is met or determines that the first indication information has been sent;
  • the terminal device may send the first indication information, or determine the default setting.
  • the preset timer is started to control the waiting time for path switching.
  • Step 304 In response to the timeout of the preset timer, initiate a path switching request to the target node.
  • the terminal device when the preset timer times out, can determine that the first indication information has failed to be sent, or that the network device has failed to receive new indication information, so that it can initiate a path switching request to the target node to change the path. Switch to the target node.
  • the terminal device can determine the timing value of the preset timer according to the protocol agreement; or determine the timing value of the preset timer according to the preset configuration information; or it can also determine the preset timing value according to the instructions of the network device.
  • the timing value of the device, etc., this disclosure does not limit this.
  • the network device can configure different timers for different target nodes or configure different timers for different frequencies through the second configuration information. That is to say, the terminal device may determine a preset timer associated with the identity of the target node and/or the frequency at which the target node is located based on the second configuration information sent by the network device.
  • timer 1 corresponds to frequency range A and timer 2 corresponds to frequency range B. Therefore, when the terminal device is triggered to perform path switching to the target node N, and the target node N is within the frequency range A, if the terminal device determines that the preset conditions are met, timer 1 is started. Afterwards, when timer 1 times out, a path switching request can be initiated to the target node N.
  • the terminal device can also stop the preset timer when receiving a radio resource control (RRC) reconfiguration message sent by the network device.
  • RRC radio resource control
  • the RRC reconfiguration message may be a handover instruction containing a new target node sent by the network device, or may be information containing a new handover condition configuration sent by the network device, which is not limited in this disclosure.
  • the terminal device After receiving the RRC reconfiguration message, the terminal device can perform path switching based on the RRC reconfiguration message and stop the preset timer.
  • the terminal device after the terminal device is triggered to perform path switching to the target node, it first determines whether the preset conditions are met, and when it is determined that the preset conditions are met, it sends auxiliary information to the network device to instruct the switching to the target node. , and start the preset timer at the same time. When the preset timer times out, a path switching request is initiated to the target node. Therefore, by synchronizing the auxiliary information for switching to the target node to the network device, not only the path switching failure is avoided, but the path switching is initiated within the preset time, thereby avoiding invalid waiting and improving the performance of the communication system.
  • FIG. 4 is a schematic flowchart of another path switching method provided by an embodiment of the present disclosure.
  • the method is executed by a terminal device. As shown in Figure 4, the method may include but is not limited to the following steps:
  • Step 401 In response to being triggered to perform path switching to the target node, determine whether the preset conditions are met.
  • Step 402 In response to the preset condition being met, send first indication information to the network device, where the first indication information is used to indicate auxiliary information for switching to the target node.
  • Step 403 Stop evaluating the switching conditions.
  • the switching condition is a condition preconfigured by the network device that can trigger path switching. For example, channel quality conditions, distance conditions between terminal equipment and nodes, time conditions, etc.
  • the evaluation of the handover condition can be stopped when the first instruction information is sent to the network device.
  • the terminal device when it determines that the preset conditions are met, it may stop evaluating the handover conditions and then send the first instruction information to the network device. This disclosure does not limit this.
  • the terminal device when the terminal device is triggered to perform path switching to the target node, it first determines whether the preset conditions are met. If it is determined that the preset conditions are met, it can send auxiliary information indicating switching to the target node to the network device, and Stops evaluation of switching conditions. Thus, by synchronizing auxiliary information for switching to the target node to the network device and stopping invalid switching condition evaluation, not only path switching failure is avoided, but resource waste is avoided, and communication system performance is improved.
  • FIG. 5 is a schematic flowchart of yet another path switching method provided by an embodiment of the present disclosure.
  • the method is executed by a terminal device. As shown in Figure 5, the method may include but is not limited to the following steps:
  • Step 501 Receive second instruction information sent by the network device.
  • Step 502 Determine whether to send the first instruction information based on the second instruction information.
  • the network device may indicate to the terminal device whether to allow the terminal device to report the first indication information when it is triggered to perform path switching to the target node and the preset conditions are met.
  • the terminal device may determine whether the first indication information can be sent based on the value of the preset field in the second indication information. For example, if the value of the preset field in the second instruction information is 1, it can be sent, if the value of the preset field is 0, it cannot be sent, and so on.
  • the second indication information may only indicate to the terminal device whether the first indication information is allowed to be reported when performing path switching to any target node and meeting preset conditions; or, it may also indicate to the terminal device whether to report the first indication information to any target node. Whether different target nodes are allowed to report the first indication information when they perform path switching and meet preset conditions.
  • the terminal device can determine whether to send the first indication information according to the reporting configuration information associated with the target node in the second indication information.
  • the second indication information includes reporting configuration information 1 associated with node M, reporting configuration information 2 associated with node N, and reporting configuration information 3 associated with node L. Then, when the terminal device performs path switching to node L, it can determine according to the reported configuration information 3 whether the first indication information can be sent when the preset conditions are met.
  • Step 503 In response to being triggered to perform path switching to the target node, determine whether the preset conditions are satisfied.
  • step 503 can be executed simultaneously with steps 501 and 502; or it can also be executed before step 502, and this disclosure does not limit this.
  • Step 504 In response to the preset condition being satisfied and the second instruction information indicating sending the first instruction information, send the first instruction information to the network device.
  • the first indication information is used to indicate handover assistance information to the target node.
  • Step 505 In response to the preset condition not being met, start the path switching process to the target node.
  • the terminal device can, under the condition that the preset conditions are met, Directly initiate path switching to the target node; or perform corresponding operations based on other configuration information, which is not limited by this disclosure.
  • the terminal device first receives the second instruction information sent by the network device, and determines whether the first instruction information can be sent based on the second instruction information. Then, when being triggered to perform path switching to the target node, the terminal device first determines the preset conditions. If the preset condition is met and the first indication information is allowed to be sent, the first indication information can be sent to the network device. Therefore, by synchronizing the auxiliary information for switching to the target node according to the instructions of the network device, path switching failure is avoided and the performance of the communication system is improved.
  • FIG. 6 is a schematic flowchart of yet another path switching method provided by an embodiment of the present disclosure.
  • the method is executed by a network device. As shown in Figure 6, the method may include but is not limited to the following steps:
  • Step 601 Receive the first instruction information sent by the terminal device, where the first instruction information is used to instruct the terminal device to perform path switching to the target node when being triggered and the preset conditions are met. Auxiliary information for node switching.
  • the terminal device when the terminal device is triggered to perform path switching to the target node, and if the preset conditions are met, the terminal device may send auxiliary information indicating switching to the target node to the network device. Therefore, the network device can determine whether the handover to the target node will be successful based on the first indication information, and then determine a new target node, or configure new handover conditions for the terminal device, thereby avoiding handover failure.
  • the target node in the direct link, is the target cell corresponding to the handover command or the satisfied path switching condition; in the indirect link, the target node is the target relay corresponding to the handover command or the satisfied path switching condition.
  • the terminal device triggers the execution of the path switching process to the target node and determines the satisfaction of the preset conditions.
  • the first indication information includes at least one of the following: target node identification, path switching success probability, path switching failure probability, channel measurement result between the terminal device and the target node, and path switching failure indication information.
  • the path switching success probability and path switching failure probability can be predicted and determined by the terminal device based on the current network environment information, such as channel measurement results, location information of the terminal device, etc., using a preset AI model.
  • Channel measurement results are used to characterize the current channel quality of the target node.
  • the target node is a target cell
  • the channel measurement result can be the reference signal receiving power (RSRP) of the target cell, or the reference signal receiving quality (RSRQ) of the target cell.
  • RSRP reference signal receiving power
  • RSRQ reference signal receiving quality
  • the target node is a target relay
  • the channel measurement result is sidelink RSRP, or sidelink RSRQ, etc. This disclosure does not limit this.
  • the terminal device may determine that the preset conditions are met, and thereby send the first instruction information.
  • the preset requirements may be configured by the network device to the terminal device, or preset in the terminal device, or determined by the terminal device based on a protocol agreement.
  • the network device can send the first configuration information to the terminal device, where the first configuration information is used to configure the preset requirements for the terminal device.
  • the preset requirement can be a threshold. Only one preset requirement may be configured in the first configuration information, so that when performing path switching to any target node, the terminal device can send the first indication information to the network device as long as it determines that the threshold is met.
  • multiple preset requirements may also be configured in the first configuration information, and each preset requirement is associated with a different node or a different frequency, so that the terminal device can first perform path switching to the target node according to the
  • the first configuration information determines a threshold associated with the identification of the target node and/or the frequency at which the target node is located, and then sends the first indication information only when the associated threshold is met.
  • the network device can also configure a timer to the terminal device, so that the terminal device can wait for the timer to expire when the timer expires. At this time, the wait is stopped and the path switching process is started.
  • the network device may send second configuration information to the terminal device, where the second configuration information is used to configure the preset timer to the terminal device.
  • the second configuration information may only be used to configure a preset timer, that is, when the terminal device performs path switching to any target node, when the preset conditions are met or after the first indication information is sent, All are based on this timer to determine whether the path switching process can be started.
  • the second configuration information can also be used to configure multiple timers, and each timer is associated with a different node or a different frequency. Therefore, when performing path switching to the target node, the terminal device can first determine the preset timer associated with the identity of the target node and/or the frequency where the target node is located based on the second configuration information, and then only use the preset timer when switching the path to the target node. When timeout occurs, the path switching process to the target node is started.
  • the terminal device when the terminal device is triggered to switch to the target node and the preset conditions are met, the terminal device sends first instruction information to the network device to indicate auxiliary information for switching to the target node.
  • the terminal device sends first instruction information to the network device to indicate auxiliary information for switching to the target node.
  • FIG. 7 is a schematic flowchart of yet another path switching method provided by an embodiment of the present disclosure.
  • the method is executed by a network device. As shown in Figure 7, the method may include but is not limited to the following steps:
  • Step 701 Send second indication information to the terminal device, where the second indication information is used to indicate whether the terminal device is allowed to send the first indication information.
  • the network device may also send the second indication information to the terminal device to indicate whether the terminal device can report the first indication information.
  • the network device may indicate whether the first indication information can be sent through the value of a preset field in the second indication information. For example, if the value of the preset field in the second indication information is 1, it indicates that sending can be performed, and if the value of the preset field is 0, it indicates that sending cannot be performed, and so on.
  • the second indication information may only indicate to the terminal device whether the first indication information is allowed to be reported when performing path switching to any target node and meeting preset conditions; or, it may also indicate to the terminal device whether to report the first indication information to any target node. Whether different target nodes are allowed to report the first indication information when they perform path switching and meet preset conditions.
  • the second indication information may include reporting configuration information associated with the target node. Therefore, the terminal device can determine whether to send the first indication information according to the reporting configuration information associated with the target node in the second indication information.
  • Step 702 Receive first indication information sent by the terminal device.
  • the first indication information is sent by the terminal device when the terminal device is triggered to perform path switching to the target node, the preset conditions are met, and the second indication information indicates that sending the first indication information is allowed.
  • the first indication information is used to indicate auxiliary information for switching to the target node.
  • step 702 For the specific implementation of the above step 702, reference can be made to the detailed description of any embodiment of the present disclosure, which will not be described again here.
  • the network device first sends the second indication information to the terminal device to indicate whether it can report the first indication information, and then receives the first indication information sent by the terminal device when it allows the terminal device to report the first indication information. Instructions.
  • the terminal device by instructing the terminal device to synchronously switch to the target node with auxiliary information, path switching failure is avoided and communication system performance is improved.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
  • the communication device 800 shown in FIG. 8 may include a processing module 801 and a transceiver module 802.
  • the transceiving module 802 may include a sending module and/or a receiving module.
  • the sending module is used to implement the sending function
  • the receiving module is used to implement the receiving function.
  • the transceiving module 802 may implement the sending function and/or the receiving function.
  • the communication device 800 may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device 800 is on the terminal equipment side, where:
  • the processing module 801 is configured to perform path switching to the target node in response to being triggered and determine whether the preset conditions are met;
  • the transceiving module 802 is configured to send first indication information to the network device in response to the preset condition being met, where the first indication information is used to indicate auxiliary information for switching to the target node.
  • processing module 801 is also used for:
  • satisfying the preset condition includes determining that path switching to the target node will fail.
  • processing module 801 is also used for:
  • processing module 801 is also used for:
  • the identification of the target node, the current channel measurement result, the channel measurement result within the preset period before the current time and the location information of the terminal device are input into the first preset AI model to obtain the third The output value of an AI model; or,
  • the identification of the target node, the current channel measurement result, the channel measurement result within the preset period before the current time and the location information of the terminal device are input into the second preset AI model to obtain the third 2.
  • the probability value of the output of the AI model is input into the second preset AI model to obtain the third 2.
  • processing module 801 is also used for:
  • a path switching request is initiated to the target node.
  • processing module 801 is also used for:
  • processing module 801 is also used for:
  • the preset timer associated with the identification of the target node and/or the frequency at which the target node is located is determined according to the second configuration information sent by the network device.
  • processing module 801 is also used for:
  • the transceiver module 802 is also used for:
  • the processing module 801 is also configured to determine whether to send the first indication information according to the second indication information.
  • processing module 801 is also used for:
  • the first indication information includes at least one of the following:
  • processing module 801 is also used for:
  • the terminal device when the terminal device is triggered to switch to the target node, it can first determine whether the preset conditions are met. If the preset conditions are met, it can send first instruction information to the network device to instruct the switch to the target node. Supplementary information. Therefore, by synchronizing the auxiliary information for switching to the target node to the network device, path switching failure is avoided and the performance of the communication system is improved.
  • the communication device 800 is on the network device side, where:
  • the transceiver module 802 is configured to receive the first instruction information sent by the terminal device, where the first instruction information is used to instruct the terminal device to perform path switching to the target node when being triggered and the preset conditions are met. Auxiliary information for the target node switching.
  • the transceiver module 802 is also used for:
  • the transceiver module 802 is also used for:
  • the second indication information includes reporting configuration information associated with the target node.
  • the first indication information includes at least one of the following:
  • the terminal device when the terminal device is triggered to switch to the target node and the preset conditions are met, the terminal device sends first instruction information to the network device to indicate auxiliary information for switching to the target node.
  • the terminal device sends first instruction information to the network device to indicate auxiliary information for switching to the target node.
  • FIG. 9 is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure.
  • the communication device 900 may be a terminal device, or may be a chip, chip system, or processor that supports the terminal device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 900 may include one or more processors 901.
  • the processor 901 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 900 may also include one or more memories 902, on which a computer program 904 may be stored.
  • the processor 901 executes the computer program 904, so that the communication device 900 performs the steps described in the above method embodiments. method.
  • the memory 902 may also store data.
  • the communication device 900 and the memory 902 can be provided separately or integrated together.
  • the communication device 900 may also include a transceiver 905 and an antenna 906.
  • the transceiver 905 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 905 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 900 may also include one or more interface circuits 907.
  • the interface circuit 907 is used to receive code instructions and transmit them to the processor 901 .
  • the processor 901 executes the code instructions to cause the communication device 900 to perform the method described in the above method embodiment.
  • the communication device 900 is a terminal device, the transceiver 905 is used to perform the sending and receiving steps in Figures 2 to 5, and the processor 901 is used to perform the processing steps in Figures 2 to 5.
  • the communication device 900 is a network device, the transceiver 905 is used to perform the sending and receiving steps in Figures 6 to 7, and the processor 901 is used to perform the processing steps in Figures 6 to 7.
  • the processor 901 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 901 may store a computer program 903, and the computer program 903 runs on the processor 901, causing the communication device 900 to perform the method described in the above method embodiment.
  • the computer program 903 may be solidified in the processor 901, in which case the processor 901 may be implemented by hardware.
  • the communication device 900 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this disclosure may be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channelmetal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or an intelligent relay, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 9 .
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the communication device may be a chip or a chip system
  • the chip shown in Figure 10 includes a processor 1001 and an interface 1002.
  • the number of processors 1001 may be one or more, and the number of interfaces 1002 may be multiple.
  • the chip also includes a memory 1003, which is used to store necessary computer programs and data.
  • the present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • the present disclosure also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • the computer program product includes one or more computer programs.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • the usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • At least one in the present disclosure can also be described as one or more, and the plurality can be two, three, four or more, and the present disclosure is not limited.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D” etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • each table in this disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which is not limited by this disclosure.
  • it is not necessarily required to configure all the correspondences shown in each table.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.
  • Predefinition in this disclosure may be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

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Abstract

本公开实施例公开了一种路径切换的方法及装置，可应用于通信技术领域，其中，由终端设备执行的方法包括：响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况；响应于所述预设条件满足，向网络设备发送第一指示信息，其中，所述第一指示信息用于指示向所述目标节点切换的辅助信息。由此，通过向网络设备同步向目标节点进行切换的辅助信息，避免了路径切换失败，提高了通信系统的性能。

Description

一种路径切换的方法及装置 技术领域
本公开涉及通信技术领域，尤其涉及一种路径切换的方法及装置。
背景技术
当终端设备基于网络设备发送的切换命令或者切换条件满足，向目标小区进行切换时，可能发生切换失败。这可能是由于网络设备发送的切换命令过晚，也可能由于网络配置的切换条件不合理导致的。因此，如何避免路径切换失败是目前亟需解决的问题。
发明内容
本公开实施例提供一种路径切换的方法及装置，通过向网络设备同步向目标节点进行切换的辅助信息，避免了路径切换失败，提高了通信系统的性能。
第一方面，本公开实施例提供一种路径切换的方法，该方法由终端设备执行，方法包括：响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况；响应于所述预设条件满足，向网络设备发送第一指示信息，其中，所述第一指示信息用于指示向所述目标节点切换的辅助信息。
本公开中，终端设备在被触发执行向目标节点的路径切换时，首先确定预设条件的满足情况，在确定所述预设条件满足时，则向网络设备发送第一指示信息。由此，通过向网络设备同步向目标节点进行切换的辅助信息，避免了路径切换失败，提高了通信系统的性能。
第二方面，本公开实施例提供一种路径切换的方法，该方法由网络设备执行，方法包括：接收终端设备发送的第一指示信息，其中所述第一指示信息用于指示所述终端设备在被触发执行向目标节点的路径切换、且预设条件满足的情况下向所述目标节点切换的辅助信息。
第三方面，本公开实施例提供一种终端设备，包括：
处理模块，用于响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况；
收发模块，用于响应于所述预设条件满足，向网络设备发送第一指示信息，其中，所述第一指示信息用于指示向所述目标节点切换的辅助信息。
第四方面，本公开实施例提供一种网络设备，包括：
收发模块，用于接收终端设备发送的第一指示信息，其中所述第一指示信息用于指示所述终端设备在被触发执行向目标节点的路径切换、且预设条件满足的情况下向所述目标节点切换的辅助信息。
第五方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第一方面所述的方法。
第六方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第二方面所述的方法。
第七方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第一方面所述的方法。
第八方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第二方面所述的方法。
第九方面，本公开实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第一方面所述的方法。
第十方面，本公开实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的方法。
第十一方面，本公开实施例提供一种通信系统，该系统包括第三方面所述的终端设备及第四方面所 述的网络设备，或者该系统包括第五方面所述的通信装置及第六方面所述的通信装置，或者，该系统包括第七方面所述的通信装置及第八方面所述的通信装置，或者，该系统包括第九方面所述的通信装置及第十方面所述的通信装置。
第十二方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述终端设备所用的指令，当所述指令被执行时，使所述终端设备执行上述第一方面所述的方法。
第十三方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述网络设备所用的指令，当所述指令被执行时，使所述终端设备执行上述第二方面所述的方法。
第十四方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第十五方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
第十六方面，本公开提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持终端设备实现第一方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存终端设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十七方面，本公开提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持网络设备实现第二方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存网络设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十八方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第十九方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
附图说明
为了更清楚地说明本公开实施例或背景技术中的技术方案，下面将对本公开实施例或背景技术中所需要使用的附图进行说明。
图1是本公开实施例提供的一种通信系统的架构示意图；
图2是本公开实施例提供的一种路径切换的方法的流程示意图；
图3是本公开实施例提供的另一种路径切换的方法的流程示意图；
图4是本公开实施例提供的另一种路径切换的方法的流程示意图；
图5是本公开实施例提供的另一种路径切换的方法的流程示意图；
图6是本公开实施例提供的另一种路径切换的方法的流程示意图；
图7是本公开实施例提供的另一种路径切换的方法的流程示意图；
图8是本公开实施例提供的一种通信装置的结构示意图；
图9是本公开实施例提供的另一种通信装置的结构示意图；
图10是本公开实施例提供的一种芯片的结构示意图。
具体实施方式
为了便于理解，首先介绍本公开涉及的术语。
1、基于条件的切换(conditional handover，CHO)
网络设备提前为终端设备配置CHO切换命令，包括切换目标小区配置和切换触发条件。终端设备存储收到的CHO切换命令，进行无线资源管理(radio resource management，RRM)测量，判断切换条件是否满足。当切换触发条件得到满足时，终端设备向目标小区发起切换过程。
2、中继
终端设备可以不直接与网络设备连接而通过一个中继，比如中继终端设备实现与网络设备的通信。其中与网络设备没有连接的终端设备称为远端终端设备(remote UE)，提供中继功能的终端设备可以称为中继终端设备(relay UE)。
终端设备直接与网络设备连接称为直接链路(direct link)，终端设备通过中继终端设备与网络设备连接称为间接链路(indirect link)。
3、目标节点
切换命令或切换条件对应的目标小区或者目标中继。
4、人工智能(artificial intelligence，AI)
AI是研究使计算机来模拟人的某些思维过程和智能行为的学科。机器学习算法是目前人工智能技术最重要的实现方法之一。机器学习可以通过大量的训练数据获得模型，通过模型可以对事件进行预测。使用切换相关的大数据对AI模型进行训练，得到的AI模型可以基于终端设备的实时网络环境预测向某个小区进行切换的成功率或切换失败概率。
为了更好的理解本公开实施例公开的一种确定传输配置指示状态的方法，下面首先对本公开实施例适用的通信系统进行描述。
请参见图1，图1为本公开实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个网络设备和一个终端设备，图1所示的设备数量和形态仅用于举例并不构成对本公开实施例的限定，实际应用中可以包括两个或两个以上的网络设备，两个或两个以上的终端设备。图1所示的通信系统以包括一个网络设备11、一个终端设备12为例。
需要说明的是，本公开实施例的技术方案可以应用于各种通信系统。例如：长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)移动通信系统、5G新空口(new radio，NR)系统，或者其他未来的新型移动通信系统等。
本公开实施例中的网络设备11是网络侧的一种用于发射或接收信号的实体。例如，网络设备11可以为演进型基站(evolved NodeB，eNB)、传输点(transmission reception point，TRP)、NR系统中的下一代基站(next generation NodeB，gNB)、其他未来移动通信系统中的基站或无线保真(wireless fidelity，WiFi)系统中的接入节点等。本公开的实施例对网络设备所采用的具体技术和具体设备形态不做限定。本公开实施例提供的网络设备可以是由集中单元(central unit，CU)与分布式单元(distributed unit，DU)组成的，其中，CU也可以称为控制单元(control unit)，采用CU-DU的结构可以将网络设备，例如基站的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。
本公开实施例中的终端设备12是用户侧的一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端设备(mobile terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。本公开的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
本系统中，终端设备可以实现本公开图2至图5任一实施例所示的方法，网络设备可以实现本公开图6至图7实施例所示的方法。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
通常，传统的切换过程中，首先网络设备会根据终端设备的测量上报结果，向切换目标小区发送切 换请求，目标小区确认完成后，再给终端设备发送切换命令(reconfigurationwith sync)，携带一个目标小区的配置信息。终端设备收到切换命令后，向目标小区会发起切换过程。
为了提高切换的鲁棒性，提出了CHO，即网络设备可以提前为终端设备配置CHO切换命令，包括切换目标小区配置和切换触发条件，其中切换目标小区配置为目标小区提供的重配消息。终端设备存储收到的CHO切换命令，进行RRM测量，判断切换条件是否满足。当切换触发条件得到满足时，终端设备向目标小区发起切换过程。这样可以避免由于基站发送切换命令时机过晚而导致的无线链路切换失败，但是仍然存在由于网络设备配置的切换条件不合理而导致的无线链路切换失败的情况。
本公主要针对由于由于网络发送的切换命令过晚，或由于网络配置的切换条件不合理，而导致的切换失败的情况，提出一种路径切换的方法。终端设备可以在被触发路径切换时，在进行路径切换前先判断向目标节点的切换是否会满足预设的条件，在满足预设条件时，即可向网络设备发送向目标节点切换的辅助信息，从而使得网络设备可以为终端设备选择新的目标节点，或者对切换条件进行更新，从而避免终端设备执行路径切换失败。
请参见图2，图2是本公开实施例提供的一种路径切换的方法的流程示意图，该方法由终端设备执行。如图2所示，该方法可以包括但不限于如下步骤：
步骤201，响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况。
其中，在直接链路中，目标节点为切换命令或者满足的路径切换条件对应的目标小区；在间接链路中，目标节点为切换命令或者满足的路径切换条件对应的目标中继。
可选的，终端设备被触发执行向目标节点的路径切换，可能是终端设备接收到网络设备发送的切换到目标节点的路径切换命令；或者，也可能是终端设备根据信道测量结果，确定满足路径切换条件。
也就是说，终端设备在接收到网络设备发送的切换到目标节点的路径切换命令时，首先确定当前的网络环境是否满足预设条件；或者，终端设备在根据当前的信道测量结果确定满足路径切换条件时，首先判断当前的网络环境是否满足预设条件。
其中，预设条件，为用于表征切换至目标节点的切换过程是否会失败的条件。比如，切换成功的概率、切换失败的概率等等。另外，信道测量结果，用于表征目标节点当前的信道质量。举例来说，若目标节点为目标小区，则信道测量结果可以为目标小区的参考信号接收功率(reference signal receiving power，RSRP)，或者为目标小区的参考信号接收质量(reference signal receiving quality，RSRQ)；或者，若目标节点为目标中继，则信道测量结果为侧行链路sidelink RSRP，或者为sidelink RSRQ等等，本公开对此不做限定。
可选的，终端设备可以根据当前的信道的测量结果，确定预设条件的满足情况；或者，也可以利用预先训练生成的AI模型，来确定预设条件的满足情况等，本公开对此不做限定。
其中，路径切换，包括从直接链路切换到直接链路，或者从直接链路切换到间接链路，或者从间接链路切换到直接链路，或者从间接链路切换到直接链路等等。
举例，终端设备当前在直接链路，收到的切换指令或者根据路径切换条件确定目标节点为目标中继，即被触发执行从直接链路切换到间接链路；或者，若终端设备当前在间接链路，收到的切换指令或者根据路径切换条件确定目标节点为目标小区，即被触发执行从间接链路切换到直接链路。
步骤202，响应于预设条件满足，向网络设备发送第一指示信息，其中，第一指示信息用于指示向目标节点切换的辅助信息。
可选的，预设条件满足包括确定向目标节点进行路径切换会发生失败。另外，第一指示信息中可以包括以下至少一项：目标节点标识，路径切换成功概率，路径切换失败概率，终端设备与目标节点间的信道测量结果，及路径切换失败指示信息。
其中，向目标节点进行路径切换会发生失败，可以为终端设备根据当前的信道测量结果确定的；或者，也可以为终端设备根据AI模型输出的结果，确定向目标节点进行路径切换时的失败概率大于一定阈值而确定的；或者也可以为终端设备根据AI模型输出的结果，确定向目标节点进行路径切换时的成功概率小于一定阈值而确定的；或者，还可以为向目标节点进行路径切换时的失败概率大于一定阈值、且向目标节点进行路径切换时的成功概率小于一定阈值而确定的等等，本公开对此不做限定。
可选的，终端设备可以在确定第一预设人工智能AI模型的输出值为预设值时，确定向所述目标节点进行路径切换会发生失败。其中，预设值为第一预设AI模型输出的用于指示切换结果为失败的值。
其中，第一预设AI模型，为预先生成的、用于预测终端设备向输入的目标节点标识对应的目标节 点进行路径切换时，是否会成功的模型。
可选的，终端设备通过将目标节点的标识、当前的信道测量结果、当前时刻之前预设时段内的信道测量结果及终端设备的位置信息，输入第一预设AI模型中，之后即可获取第一AI模型的输出值。
其中，当前的信道测量结果，可以包括终端设备与目标节点之间的当前的信道的测量结果，还可以包括终端设备与其余节点之间的当前的信道测量结果。另外，为了更加准确的评估当前的信道测量结果是否适合进行路径切换，终端设备还可以将当前时刻预设时段内的信道测量结果输入第一预设AI模型。比如，将当前时刻之前的前10秒内的信道测量结果输入第一预设AI模型中，或者，将当前时刻之前的前两次的信道测量结果输入第一预设AI模型中等等，本公开对此不做限定。
或者，终端设备还可以在第二网络模型输出的概率值满足预设要求的情况下，确定向目标节点进行路径切换会发生失败。
其中，第二预设AI模型，为预先生成的、用于预测终端设备向输入的目标节点标识对应的目标节点进行路径切换时切换成功的概率值的模型，或者用于预测切换失败的概率值模型。
可选的，预设要求，可以为预设阈值。比如可以为切换失败的概率阈值，当第二预设AI模型输出的切换失败的概率值大于切换失败的概率阈值，则需要上报第一指示信息。或者，预设要求也可以为切换成功的概率阈值，当第二预设AI模型输出的切换成功的概率值小于切换成功的概率阈值，则需要上报第一指示信息等等，本公开对此不做限定。
本公开中，终端设备可以将目标节点的标识、当前的信道测量结果、当前时刻之前预设时段内的信道测量结果及终端设备的位置信息，输入第二预设AI模型，获取第二AI模型的输出的概率值。
可选的，终端设备可以根据协议约定，确定预设要求；或者也可以根据预置的配置信息确定预设要求；或者，还可以根据网络设备的指示确定预设要求，本公开对此不做限定。
另外，网络设备可以通过第一信息，为不同的目标节点配置不同的预设要求或者，为不同频率的节点配置不同的预设条件。
也就是说，终端设备可以根据网络设备发送的第一配置信息，确定与目标节点的标识和/或目标节点所在的频率关联的预设要求。
举例来说，网络设备发送的第一配置信息中指示了3个预设要求，其中，预设要求1对应频率范围A，预设要求2对应频率范围B，预设要求3对应频率范围C。从而终端设备在被触发要向目标节点N进行路径切换时，即可根据当前的信道测量结果及之前的信道测量结果等信息，利用第二预设AI模型预测确定切换失败的概率为x，由于目标节点N所在的频率范围为B，那么即可确定x是否满足预设要求2。若满足，则可以向网络设备发送第一指示信息。若不满足，则说明切换成功的概率较大，从而可直接向目标节点A进行路径切换。
本公开中，终端设备在向目标节点切换前，如果确定路径切换会发生失败，则先向网络设备发送第一指示信息，以辅助网络设备重新确定目标节点，或者更新切换条件配置，从而尽量避免了路径切换失败。
本公开中，终端设备在被触发向目标节点切换时，可以首先确定预设条件的满足情况，若满足预设条件，则可以向网络设备发送第一指示信息，以指示向目标节点进行切换的辅助信息。由此，通过向网络设备同步向目标节点进行切换的辅助信息，避免了路径切换失败，提高了通信系统的性能。
请参见图3，图3是本公开实施例提供的另一种路径切换的方法的流程示意图，该方法由终端设备执行。如图3所示，该方法可以包括但不限于如下步骤：
步骤301，响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况。
步骤302，响应于预设条件满足，向网络设备发送第一指示信息，其中，第一指示信息用于指示向目标节点切换的辅助信息。
其中，上述步骤301及302的具体实现过程，可以参照本公开任一实施例的详细描述，此处不再赘述。
步骤303，启动预设定时器。
可选的，终端设备可以在确定预设条件满足或确定已发送所述第一指示信息时，启动预设定时器；
本公开中，为了避免终端设备上报第一指示信息失败，或者未能及时接收到网络设备发送的新的指示，而影响通信性能，终端设备可以在发送第一指示信息后，或者在确定预设条件满足时启动预设定时 器，以对路径切换等待时长进行定时控制。
步骤304，响应于预设定时器超时，向目标节点发起路径切换请求。
本公开中，在预设的定时器超时时，终端设备则可以确定第一指示信息发送失败，或者网络设备的新的指示信息接收失败，从而即可向目标节点发起路径切换请求，以将路径切换至目标节点。
其中，终端设备可以根据协议约定，确定预设定时器的定时值；或者，根据预置的配置信息，确定预设定时器的定时值；或者，还可以根据网络设备的指示，确定预设定时器的定时值等等，本公开对此不作限定。
可选的，网络设备可以通过第二配置信息，为不同的目标节点配置不同的定时器，或者为不同的频率配置不同的定时器。也就是说，终端设备可以根据网络设备发送的第二配置信息，确定与目标节点的标识和/或所述目标节点所在的频率关联的预设定时器。
举例来说，网络设备发送的第二配置信息中配置了2个定时器，其中，定时器1对应频率范围A，定时器2对应频率范围B。从而终端设备在被触发要向目标节点N进行路径切换、且目标节点N在频率范围内A，此时若终端设备确定满足预设条件，则启动定时器1。之后，在定时器1超时时，即可向目标节点N发起路径切换请求。
可选的，终端设备也可以在接收到网络设备发送的无线资源控制(radio resource control，RRC)重配消息时，停止预设定时器。
其中，该RRC重配消息，可能为网络设备发送的包含新的目标节点的切换指令，或者也可能为网络设备发送的包含新的切换条件配置的信息，本公开对此不作限定。
终端设备在接收到该RRC重配消息后，即可基于该RRC重配消息进行路径切换，同时停止预设定时器。
本公开中，终端设备在被触发执行向目标节点的路径切换后，首先确定预设条件的满足情况，在确定预设条件满足时，向网络设备发送用于指示向目标节点进行切换的辅助信息，同时启动预设定时器，在预设定时器超时时，再向目标节点发起路径切换请求。由此，通过向网络设备同步向目标节点进行切换的辅助信息，不仅避免了路径切换失败，而且在预设时间内即启动路径切换，避免了无效等待，提高了通信系统性能。
请参见图4，图4是本公开实施例提供的另一种路径切换的方法的流程示意图，该方法由终端设备执行。如图4所示，该方法可以包括但不限于如下步骤：
步骤401，响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况。
步骤402，响应于预设条件满足，向网络设备发送第一指示信息，其中，所述第一指示信息用于指示向所述目标节点切换的辅助信息。
其中，上述步骤401及402的具体实现过程，可以参照本公开任一实施例的详细描述，此处不再赘述。
步骤403，停止对切换条件的评估。
其中，切换条件为网络设备预先配置的可以触发进行路径切换的条件。比如，信道质量条件、终端设备与节点间的距离条件，时间条件等等。
本公开中为了避免终端设备的资源浪费，可以在向网络设备发送了第一指示信息的情况下，停止对切换条件的评估。
可选的，终端设备也可以在确定预设条件满足的情况下，即停止对切换条件的评估，同时再向网络设备发送第一指示信息，本公开对此不做限定。
本公开中，终端设备在被触发执行向目标节点的路径切换时，首先确定预设条件的满足情况，若确定预设条件满足，则可以向网络设备发送指示向目标节点切换的辅助信息，并停止对切换条件的评估。由此，通过向网络设备同步向目标节点进行切换的辅助信息并停止无效的切换条件评估，不仅避免了路径切换失败，而且避免了资源浪费，提高了通信系统性能。
请参见图5，图5是本公开实施例提供的又一种路径的切换方法的流程示意图，该方法由终端设备执行。如图5所示，该方法可以包括但不限于如下步骤：
步骤501，接收网络设备发送的第二指示信息。
步骤502，根据第二指示信息，确定是否发送第一指示信息。
也就是说，网络设备可以向终端设备指示是否允许终端设备在被触发向目标节点进行路径切换、且满足预设条件时是否上报第一指示信息。
可选的，终端设备可以根据第二指示信息中的预设域的值，确定是否可以发送第一指示信息。比如，第二指示信息中预设域的值为1则可以发送，预设域的值为0则不能发送等等。
可选的，第二指示信息，可以仅向终端设备指示在向任何目标节点进行路径切换、且满足预设条件的情况下是否允许上报第一指示信息；或者，也可以向终端设备指示在向不同的目标节点进行路径切换、且满足预设条件的情况下是否允许上报第一指示信息。
从而，终端设备可以根据第二指示信息中与所述目标节点关联的上报配置信息，确定是否发送第一指示信息。
举例来说，第二指示信息中包括节点M关联的上报配置信息1、节点N关联的上报配置信息2及节点L关联的上报配置信息3。那么终端设备在向节点L进行路径切换时，即可根据上报配置信息3来确定满足预设条件的情况下，是否可以发送第一指示信息。
步骤503，响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况。
其中，步骤503，可以与步骤501及502同时执行；或者也可以在步骤502之前执行，本公开对此不做限定。
步骤504，响应于预设条件满足、且第二指示信息指示发送第一指示信息，向网络设备发送第一指示信息。
其中，所述第一指示信息用于指示向所述目标节点的切换辅助信息。
步骤505，响应于预设条件未满足，启动向目标节点的路径切换过程。
上述步骤503至505的具体实现方式，可以参照本公开任一实施例的详细描述，此处不再赘述。
需要说明的是，若第二指示信息中指示再向目标节点进行路径切换、且满足预设条件的情况下，不允许发送第一指示信息，则终端设备可以在满足预设条件的情况下，直接启动向目标节点的路径切换；或者，依据其他的配置信息执行对应操作，本公开对此不做限定。
本公开中，终端设备首先接收网络设备发送的第二指示信息，并基于第二指示信息确定是否可以发送第一指示信息，之后在被触发向目标节点执行路径切换时，先确定预设条件的满足情况，若预设条件满足、且允许发送第一指示信息，则可以向网络设备发送第一指示信息。由此，通过根据网络设备的指示向其同步向目标节点进行切换的辅助信息，避免了路径切换失败，提高了通信系统性能。
请参见图6，图6是本公开实施例提供的又一种路径切换的方法的流程示意图，该方法由网络设备执行。如图6所示，该方法可以包括但不限于如下步骤：
步骤601，接收终端设备发送的第一指示信息，其中所述第一指示信息用于指示所述终端设备在被触发执行向目标节点的路径切换、且预设条件满足的情况下向所述目标节点切换的辅助信息。
本公开中，终端设备在被触发执行向目标节点的路径切换时，在预设条件满足的情况下，可以将用于指示向该目标节点切换的辅助信息发送给网络设备。从而网络设备即可根据该第一指示信息，确定向目标节点切换是否会成功，进而即可确定新的目标节点，或者为终端设备配置新的切换条件，从而避免了切换失败。
其中，目标节点，在直接链路中，目标节点为切换命令或者满足的路径切换条件对应的目标小区；在间接链路中，目标节点为切换命令或者满足的路径切换条件对应的目标中继。
另外，终端设备触发执行向目标节点的路径切换过程及确定预设条件的满足情况的方式，可以参照本公开任一实施例的详细描述，此处不再赘述。
可选的，第一指示信息中包括以下至少一项：目标节点标识，路径切换成功概率，路径切换失败概率，终端设备与所述目标节点间的信道测量结果，及路径切换失败指示信息。
其中，路径切换成功概率及路径切换失败概率，可以为终端设备基于当前的网络环境信息，比如信道测量结果、终端设备的位置信息等，利用预设的AI模型预测确定的。信道测量结果，用于表征目标节点当前的信道质量。举例来说，若目标节点为目标小区，则信道测量结果可以为目标小区的参考信号接收功率(reference signal receiving power，RSRP)，或者为目标小区的参考信号接收质量(reference signal receiving quality，RSRQ)；或者，若目标节点为目标中继，则信道测量结果为 侧行链路sidelink RSRP，或者为sidelink RSRQ等等，本公开对此不做限定。
可选的，终端设备可能是在AI模型的输出结果满足预设要求的情况下，确定预设条件满足，从而发送第一指示信息。其中，预设要求，可以为网络设备向终端设备配置的，或者为预置在终端设备中的，或者为终端设备基于协议约定确定的。
也就是说，网络设备可以向终端设备发送第一配置信息，其中，第一配置信息用于向终端设备配置预设要求。
可选的，预设要求可以为阈值。第一配置信息中可以仅配置一个预设要求，从而终端设备即可在向任何目标节点进行路径切换时，只要确定满足该阈值，即向网络设备发送第一指示信息。
或者，第一配置信息中，也可以配置多个预设要求、且每个预设要求与不同的节点或者不同的频率关联，从而终端设备即可在向目标节点进行路径切换时，首先根据该第一配置信息，确定与目标节点的标识和/或目标节点所在的频率关联的阈值，进而仅在满足其关联的阈值时，才发送第一指示信息。
另外，为了避免终端设备向网络设备发送第一指示信息后，一直等待网络设备的指示，而影响通信性能，本公开中网络设备也可以向终端设备配置定时器，以使终端设备在定时器超时时，即停止等待，启动路径切换过程。
也就是说，网络设备可以向终端设备发送第二配置信息，其中，第二配置信息用于向终端设备配置预设定时器。
可选的，第二配置信息中可以仅用于配置一个预设定时器，即终端设备在向任何目标节点进行路径切换时，在预设条件满足的情况下或者发送了第一指示信息后，都基于该定时器来确定是否可以启动向路径切换过程。
或者，第二配置信息中，还可以用于配置多个定时器、且每个定时器与不同的节点或者不同的频率关联。从而终端设备即可在向目标节点进行路径切换时，首先根据该第二配置信息，确定与目标节点的标识和/或目标节点所在的频率关联的预设定时器，进而仅在预设定时器超时时，才启动向目标节点的路径切换过程。
本公开中，终端设备在被触发向目标节点切换、且预设条件满足的情况下，向网络设备发送第一指示信息，以指示向目标节点进行切换的辅助信息。由此，通过同步终端设备向目标节点进行切换的辅助信息，避免了路径切换失败，提高了通信系统的性能。
请参见图7，图7是本公开实施例提供的又一种路径切换的方法的流程示意图，该方法由网络设备执行。如图7所示，该方法可以包括但不限于如下步骤：
步骤701，向终端设备发送第二指示信息，其中，第二指示信息用于指示是否允许终端设备发送第一指示信息。
本公开中，为了避免由于终端设备发送第一指示信息带来的信道资源浪费，还可以由网络设备向终端设备发送第二指示信息，以指示终端设备是否可以上报第一指示信息。
可选的，网络设备可以通过第二指示信息中的预设域的值，来指示是否可以发送第一指示信息。比如，第二指示信息中预设域的值为1则指示可以发送，预设域的值为0则指示不能发送等等。
可选的，第二指示信息，可以仅向终端设备指示在向任何目标节点进行路径切换、且满足预设条件的情况下是否允许上报第一指示信息；或者，也可以向终端设备指示在向不同的目标节点进行路径切换、且满足预设条件的情况下是否允许上报第一指示信息。
也就是说，第二指示信息中可以包含与目标节点关联的上报配置信息。从而终端设备可以根据第二指示信息中与所述目标节点关联的上报配置信息，确定是否发送第一指示信息。
步骤702，接收终端设备发送的第一指示信息。
其中第一指示信息为所述终端设备在被触发执行向目标节点的路径切换、预设条件满足、且第二指示信息指示允许发送第一指示信息的情况下发送的。其中，第一指示信息用于指示向目标节点切换的辅助信息。
其中，上述步骤702的具体实现方式，可以参照本公开任一实施例的详细描述，此处不再赘述。
本公开中，网络设备首先向终端设备发送第二指示信息以指示其是否可以上报第一指示信息，之后即可在其允许终端设备上报第一指示信息的情况下接收到终端设备发送的第一指示信息。由此，通过指示终端设备同步向目标节点进行切换的辅助信息，避免了路径切换失败，提高了通信系统性能。
请参见图8，图8为本公开实施例提供的一种通信装置的结构示意图。图8所示的通信装置800可包括处理模块801和收发模块802。收发模块802可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块802可以实现发送功能和/或接收功能。
可以理解的是，通信装置800可以是终端设备，也可以是终端设备中的装置，还可以是能够与终端设备匹配使用的装置。
通信装置800在终端设备侧，其中：
处理模块801，用于响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况；
收发模块802，用于响应于所述预设条件满足，向网络设备发送第一指示信息，其中，所述第一指示信息用于指示向所述目标节点切换的辅助信息。
可选的，处理模块801，还用于：
确定接收到所述网络设备发送的切换到所述目标节点的路径切换命令；或者，
确定满足路径切换条件。
可选的，所述预设条件满足包括：确定向所述目标节点进行路径切换会发生失败。
可选的，处理模块801，还用于：
响应于第一预设人工智能AI模型的输出值为预设值，确定向所述目标节点进行路径切换会发生失败；或者，
响应于第二网络模型输出的概率值满足预设要求，确定向所述目标节点进行路径切换会发生失败。
可选的，处理模块801，还用于：
将所述目标节点的标识、所述当前的信道测量结果、当前时刻之前预设时段内的信道测量结果及所述终端设备的位置信息，输入所述第一预设AI模型，获取所述第一AI模型的输出值；或者，
将所述目标节点的标识、所述当前的信道测量结果、当前时刻之前预设时段内的信道测量结果及所述终端设备的位置信息，输入所述第二预设AI模型，获取所述第二AI模型的输出的概率值。
可选的，处理模块801，还用于：
确定所述预设条件满足或确定已发送所述第一指示信息，启动预设定时器；
响应于预设定时器超时，向所述目标节点发起路径切换请求。
可选的，处理模块801，还用于：
响应于接收到所述网络设备发送的无线资源控制RRC重配消息，停止所述预设定时器。
可选的，处理模块801，还用于：
根据所述网络设备发送的第一配置信息，确定与所述目标节点的标识和/或所述目标节点所在的频率关联的所述预设要求；或者，
根据所述网络设备发送的第二配置信息，确定与所述目标节点的标识和/或所述目标节点所在的频率关联的所述预设定时器。
可选的，处理模块801，还用于：
响应于确定所述预设条件满足，停止对切换条件的评估；或者，
响应于已发送所述第一指示信息，停止对切换条件的评估。
可选的，收发模块802，还用于：
接收所述网络设备发送的第二指示信息；
处理模块801，还用于根据所述第二指示信息，确定是否发送所述第一指示信息。
可选的，处理模块801，还用于：
根据所述第二指示信息中与所述目标节点关联的上报配置信息，确定是否发送所述第一指示信息。
可选的，所述第一指示信息中包括以下至少一项：
目标节点标识；
路径切换成功概率；
路径切换失败概率；
所述终端设备与所述目标节点间的信道测量结果；及
路径切换失败指示信息。
可选的，处理模块801，还用于：
响应于所述预设条件未满足，启动向所述目标节点的路径切换过程。
本公开中，终端设备在被触发向目标节点切换时，可以首先确定预设条件的满足情况，若满足预设条件，则可以向网络设备发送第一指示信息，以指示向目标节点进行切换的辅助信息。由此，通过向网络设备同步向目标节点进行切换的辅助信息，避免了路径切换失败，提高了通信系统的性能。
或者，通信装置800在网络设备侧，其中：
收发模块802，用于接收终端设备发送的第一指示信息，其中所述第一指示信息用于指示所述终端设备在被触发执行向目标节点的路径切换、且预设条件满足的情况下向所述目标节点切换的辅助信息。
可选的，收发模块802，还用于：
向所述终端设备发送第一配置信息，其中，所述第一配置信息用于向所述终端设备配置预设要求；或者，
向所述终端设备发送第二配置信息，其中，所述第二配置信息用于向所述终端设备配置预设定时器。
可选的，收发模块802，还用于：
向所述终端设备发送第二指示信息，其中，所述第二指示信息用于指示是否允许所述终端设备发送所述第一指示信息。
可选的，第二指示信息中包含与所述目标节点关联的上报配置信息。
可选的，所述第一指示信息中包括以下至少一项：
目标节点标识；
路径切换成功概率；
路径切换失败概率；
所述终端设备与所述目标节点间的信道测量结果；及
路径切换失败指示信息。
本公开中，终端设备在被触发向目标节点切换、且预设条件满足的情况下，向网络设备发送第一指示信息，以指示向目标节点进行切换的辅助信息。由此，通过同步终端设备向目标节点进行切换的辅助信息，避免了路径切换失败，提高了通信系统的性能。
请参见图9，图9是本公开实施例提供的另一种通信装置的结构示意图。通信装置900可以是终端设备，也可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置900可以包括一个或多个处理器901。处理器901可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置900中还可以包括一个或多个存储器902，其上可以存有计算机程序904，处理器901执行所述计算机程序904，以使得通信装置900执行上述方法实施例中描述的方法。可选的，所述存储器902中还可以存储有数据。通信装置900和存储器902可以单独设置，也可以集成在一起。
可选的，通信装置900还可以包括收发器905、天线906。收发器905可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器905可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置900中还可以包括一个或多个接口电路907。接口电路907用于接收代码指令并传输至处理器901。处理器901运行所述代码指令以使通信装置900执行上述方法实施例中描述的方法。
通信装置900为终端设备，收发器905用于执行图2至图5中的收发步骤，处理器901用于执行图2至图5中的处理步骤。
通信装置900为网络设备，收发器905用于执行图6至图7中的收发步骤，处理器901用于执行图6至图7中的处理步骤。
在一种实现方式中，处理器901中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器901可以存有计算机程序903，计算机程序903在处理器901上运行，可使得通信装置900执行上述方法实施例中描述的方法。计算机程序903可能固化在处理器901中，该种情况下，处理器901可能由硬件实现。
在一种实现方式中，通信装置900可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channelmetal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者智能中继，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图9的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图10所示的芯片的结构示意图。图10所示的芯片包括处理器1001和接口1002。其中，处理器1001的数量可以是一个或多个，接口1002的数量可以是多个。
对于芯片用于实现本公开实施例中终端设备的功能的情况。
可选的，芯片还包括存储器1003，存储器1003用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本公开中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本公开并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本公开中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (23)

  1. 一种路径切换的方法，其特征在于，由终端设备执行，所述方法包括：
    响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况；
    响应于所述预设条件满足，向网络设备发送第一指示信息，其中，所述第一指示信息用于指示向所述目标节点切换的辅助信息。
  2. 如权利要求1所述的方法，其特征在于，所述被触发执行向目标节点的路径切换，包括：
    确定接收到所述网络设备发送的切换到所述目标节点的路径切换命令；或者，
    确定满足路径切换条件。
  3. 如权利要求1或2所述的方法，其特征在于，所述预设条件满足包括：
    确定向所述目标节点进行路径切换会发生失败。
  4. 如权利要求3所述的方法，其特征在于，所述确定向所述目标节点进行路径切换会发生失败，包括：
    响应于第一预设人工智能AI模型的输出值为预设值，确定向所述目标节点进行路径切换会发生失败；或者，
    响应于第二网络模型输出的概率值满足预设要求，确定向所述目标节点进行路径切换会发生失败。
  5. 如权利要求4所述的方法，其特征在于，还包括：
    将所述目标节点的标识、所述当前的信道测量结果、当前时刻之前预设时段内的信道测量结果及所述终端设备的位置信息，输入所述第一预设AI模型，获取所述第一AI模型的输出值；或者，
    将所述目标节点的标识、所述当前的信道测量结果、当前时刻之前预设时段内的信道测量结果及所述终端设备的位置信息，输入所述第二预设AI模型，获取所述第二AI模型的输出的概率值。
  6. 如权利要求1所述的方法，其特征在于，还包括：
    确定所述预设条件满足或确定已发送所述第一指示信息，启动预设定时器；
    响应于预设定时器超时，向所述目标节点发起路径切换请求。
  7. 如权利要求6所述的方法，其特征在于，还包括：
    响应于接收到所述网络设备发送的无线资源控制RRC重配消息，停止所述预设定时器。
  8. 如权利要求4-7任一所述的方法，其特征在于，还包括：
    根据所述网络设备发送的第一配置信息，确定与所述目标节点的标识和/或所述目标节点所在的频率关联的所述预设要求；或者，
    根据所述网络设备发送的第二配置信息，确定与所述目标节点的标识和/或所述目标节点所在的频率关联的所述预设定时器。
  9. 如权利要求1所述的方法，其特征在于，还包括：
    响应于确定所述预设条件满足，停止对切换条件的评估；或者，
    响应于已发送所述第一指示信息，停止对切换条件的评估。
  10. 如权利要求1所述的方法，其特征在于，还包括：
    接收所述网络设备发送的第二指示信息；
    根据所述第二指示信息，确定是否发送所述第一指示信息。
  11. 如权利要求10所述的方法，其特征在于，所述根据所述第二指示信息，确定是否运行发送所述第一指示信息，包括：
    根据所述第二指示信息中与所述目标节点关联的上报配置信息，确定是否发送所述第一指示信息。
  12. 如权利要求1-11任一所述的方法，其特征在于，所述第一指示信息中包括以下至少一项：
    目标节点标识；
    路径切换成功概率；
    路径切换失败概率；
    所述终端设备与所述目标节点间的信道测量结果；及
    路径切换失败指示信息。
  13. 如权利要求1所述的方法，其特征在于，还包括：
    响应于所述预设条件未满足，启动向所述目标节点的路径切换过程。
  14. 一种路径切换的方法，其特征在于，由网络设备执行，所述方法包括：
    接收终端设备发送的第一指示信息，其中所述第一指示信息用于指示所述终端设备在被触发执行向目标节点的路径切换、且预设条件满足的情况下向所述目标节点切换的辅助信息。
  15. 如权利要求14所述的方法，其特征在于，还包括：
    向所述终端设备发送第一配置信息，其中，所述第一配置信息用于向所述终端设备配置预设要求；或者，
    向所述终端设备发送第二配置信息，其中，所述第二配置信息用于向所述终端设备配置预设定时器。
  16. 如权利要求14或15所述的方法，其特征在于，还包括：
    向所述终端设备发送第二指示信息，其中，所述第二指示信息用于指示是否允许所述终端设备发送所述第一指示信息。
  17. 如权利要求16所述的方法，其特征在于，所述第二指示信息中包含与所述目标节点关联的上报配置信息。
  18. 如权利要求14-17任一所述的方法，其特征在于，所述第一指示信息中包括以下至少一项：
    目标节点标识；
    路径切换成功概率；
    路径切换失败概率；
    所述终端设备与所述目标节点间的信道测量结果；及
    路径切换失败指示信息。
  19. 一种终端设备，其特征在于，包括：
    处理模块，用于响应于被触发执行向目标节点的路径切换，确定预设条件的满足情况；
    收发模块，用于响应于所述预设条件满足，向网络设备发送第一指示信息，其中，所述第一指示信息用于指示向所述目标节点切换的辅助信息。
  20. 一种网络设备，其特征在于，包括：
    收发模块，用于接收终端设备发送的第一指示信息，其中所述第一指示信息用于指示所述终端设备在被触发执行向目标节点的路径切换、且预设条件满足的情况下向所述目标节点切换的辅助信息。
  21. 一种通信系统，其特征在于，所述通信系统包括终端设备及网络设备设备，所述终端设备用于执行如权利要求1-13中任一项所述的方法，所述网络设备用于执行如权利要求14-18中任一项所述的 方法。
  22. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至13中任一项所述的方法，或者执行如权利要求14至18中任一项所述的方法。
  23. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1至13中任一项所述的方法被实现，或者使如权利要求14至18中任一项所述的方法被实现。
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