WO2023179353A1 - Procédé de communication et appareil de communication - Google Patents

Procédé de communication et appareil de communication Download PDF

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Publication number
WO2023179353A1
WO2023179353A1 PCT/CN2023/080027 CN2023080027W WO2023179353A1 WO 2023179353 A1 WO2023179353 A1 WO 2023179353A1 CN 2023080027 W CN2023080027 W CN 2023080027W WO 2023179353 A1 WO2023179353 A1 WO 2023179353A1
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WIPO (PCT)
Prior art keywords
threshold
terminal device
access network
signal quality
distance
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PCT/CN2023/080027
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English (en)
Chinese (zh)
Inventor
刘澎源
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华为技术有限公司
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Publication of WO2023179353A1 publication Critical patent/WO2023179353A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data

Definitions

  • the present application relates to the field of communication, and more specifically, to a communication method and a communication device.
  • the signal quality of high-speed moving terminal equipment (such as high-speed railways and mobile communication equipment within high-speed railways) changes unstablely, which can easily cause the ping-pong handover problem of terminal equipment switching back and forth between two cells.
  • the time for high-speed mobile terminal equipment to pass through the coverage area where cell handover can be performed is short, which may be less than the minimum delay for the system to complete cell handover.
  • the connection between the terminal equipment and the network is prone to be interrupted, which affects the communication quality of the terminal equipment.
  • Embodiments of the present application provide a communication method and communication device, in order to improve the communication reliability of terminal equipment.
  • a communication method is provided, which method can be executed by a terminal device or a module (such as a chip) configured in (or used for) the terminal device.
  • the method includes: receiving a reference signal from an access network device. According to the reference signal, a target parameter value is obtained.
  • the target parameter value includes at least one of a target angle or a target distance.
  • the target angle is the distance between the connection between the access network device and the terminal device and the movement direction of the terminal device.
  • the included angle is the distance between the access network device and the terminal device.
  • the report threshold is determined to be a first threshold value, and the first threshold value corresponds to the parameter value interval in which the target parameter value is located. The report threshold is used to determine whether to send a measurement report.
  • the terminal device can determine the threshold value for sending the measurement report based on the relative position relationship between the terminal device and the access network device, so that the timing of the terminal device sending the measurement report to the access network device is related to the relative position relationship. , can reduce the probability of communication quality degradation such as ping-pong handover caused by signal quality fluctuations and interruption of the connection between the terminal device and the network caused by too late handover. It can improve the communication reliability of terminal equipment.
  • determining the reporting threshold to be the first threshold value includes: determining the parameter value interval in which the target parameter value is located. And, determine the threshold compensation amount based on the parameter value interval. The first threshold value is determined according to the second threshold value and the threshold compensation amount, and the second threshold value is the threshold value of the reporting threshold configured by the access network device for the terminal device.
  • the terminal device can use the second threshold value configured by the access network device as a benchmark, determine the threshold compensation amount based on the parameter value interval where the target parameter value is located, and perform threshold compensation based on the second threshold value.
  • the compensation amount can be a positive compensation amount or a negative compensation amount.
  • the threshold compensation The amount is a positive compensation amount.
  • the threshold compensation amount is a negative compensation amount.
  • the second distance is greater than the first distance.
  • the terminal equipment when the equivalent horizontal distance between the terminal equipment and the first access network equipment of the serving cell is less than or equal to the first distance, the terminal equipment can delay sending the measurement report, thereby reducing the probability of ping-pong handover caused by signal quality fluctuations, thereby Improve the communication quality of terminal equipment.
  • the terminal device can send a measurement report in advance to reduce the disconnection between the terminal device and the network caused by insufficient preparation time for network switching. Thereby improving the communication quality of terminal equipment.
  • the reporting threshold includes at least one of a signal quality threshold or a time threshold, and when the measurement result of cell measurement performed by the terminal device meets the first threshold value, Send this measurement report.
  • the terminal device can determine at least one of the signal quality threshold or the time threshold for sending the measurement report based on the relative position relationship between the terminal device and the access network device, so that the terminal device sends the measurement to the access network device.
  • the timing of the report is related to the relative position relationship, which can reduce the probability of communication quality degradation such as ping-pong switching caused by signal quality fluctuations and interruption of the connection between the terminal device and the network caused by too late switching. It can improve the communication reliability of terminal equipment.
  • the measurement report is used to indicate cell signal quality, the cell signal quality meets the second threshold value, and the cell signal quality includes the signal quality of the serving cell of the terminal device. and/or the signal quality of the first cell, which is a cell other than the serving cell of the terminal device, and the second threshold value is the threshold value of the reporting threshold configured by the access network device for the terminal device. .
  • the second aspect provides a communication device.
  • the device may include a module that performs one-to-one correspondence with the methods/operations/steps/actions described in the first aspect.
  • the module may be a hardware circuit, or However, software can also be implemented by hardware circuits combined with software.
  • the device includes: a transceiver unit, configured to receive reference signals from access network equipment.
  • a processing unit configured to obtain a target parameter value based on the reference signal.
  • the target parameter value includes at least one of a target angle or a target distance.
  • the target angle is a connection between the access network device and the terminal device and the terminal device.
  • the angle between the movement directions, the target distance is the surface distance between the access network device and the terminal device.
  • the processing unit is also used to determine the reporting threshold to be a first threshold value, the first threshold value corresponding to the parameter value interval in which the target parameter value is located, and the reporting threshold is used to determine whether to send a measurement report.
  • the processing unit is specifically used to:
  • the first threshold value is determined according to the second threshold value and the threshold compensation amount, and the second threshold value is the threshold value of the reporting threshold configured by the access network device for the terminal device.
  • the reporting threshold includes at least one of a signal quality threshold or a time threshold, and when the measurement result of cell measurement performed by the terminal device meets the first threshold value, Should send and receive The unit is also used to send this measurement report.
  • the measurement report is used to indicate cell signal quality
  • the cell signal quality meets the second threshold value
  • the cell signal quality includes the signal quality of the serving cell of the terminal device and/or the signal quality of the first cell, which is a cell other than the serving cell of the terminal device
  • the second threshold value is the threshold value of the reporting threshold configured by the access network device for the terminal device.
  • a communication device including a processor.
  • the processor can implement the method in the above first aspect and any possible implementation manner of the first aspect.
  • the communication device further includes a memory, and the processor is coupled to the memory and can be used to execute instructions in the memory to implement the above-mentioned first aspect and the method in any possible implementation manner of the first aspect.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interfaces, and is not limited thereto.
  • the communication device is a terminal device.
  • the communication interface may be a transceiver or an input/output interface.
  • the communication device is a chip configured in a terminal device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a processor including: an input circuit, an output circuit and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the first aspect and the method in any possible implementation manner of the first aspect.
  • the above-mentioned processor can be one or more chips
  • the input circuit can be an input pin
  • the output circuit can be an output pin
  • the processing circuit can be a transistor, a gate circuit, a flip-flop and various logic circuits, etc.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, the receiver, and the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by the transmitter, and the input circuit and the output A circuit may be the same circuit that functions as an input circuit and an output circuit at different times.
  • the embodiments of this application do not limit the specific implementation methods of the processor and various circuits.
  • a computer program product includes: a computer program (which may also be called a code, or an instruction).
  • a computer program which may also be called a code, or an instruction.
  • the computer program When the computer program is run, it causes the computer to execute the above first aspect and the first aspect. method in any of the possible implementations.
  • a computer-readable storage medium stores a computer program (which may also be called a code, or an instruction) that when run on a computer causes the computer to execute the above-mentioned first aspect and A method in any possible implementation manner of the first aspect.
  • a computer program which may also be called a code, or an instruction
  • a seventh aspect provides a communication system, including at least one terminal device provided in the second aspect and at least one network device.
  • Figure 1 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic flow chart of the cell measurement and cell handover process provided by the embodiment of the present application.
  • Figure 3 is a schematic flow chart of the communication method provided by the embodiment of the present application.
  • Figure 4 is a schematic diagram of the relative positional relationship between the terminal device and the first access network device provided by the embodiment of the present application;
  • Figure 5 is another schematic diagram of the relative positional relationship between the terminal device and the first access network device provided by the embodiment of the present application.
  • Figure 6 is a schematic block diagram of an example of a communication device provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of an example of a terminal device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of an example of a network device provided by an embodiment of the present application.
  • At least one (item) can also be described as one (item) or multiple (items), and the plurality (items) can be two (items), three (items), four (items), or more Multiple (items) are not limited.
  • “/" can indicate that the related objects are in an "or” relationship, for example, A/B can mean A or B;
  • "and/or" can be used to describe the existence of three relationships between associated objects, for example, A and/ or B, can mean: A alone, A and B exist simultaneously, and B alone, where A and B can be singular or plural.
  • words such as “first”, “second”, “A”, or “B” may be used to distinguish technical features with the same or similar functions.
  • the words “first”, “second”, “A”, or “B” do not limit the quantity and order of execution.
  • the words “first”, “second”, “A”, or “B” are not necessarily different.
  • the words “exemplary” or “such as” are used to mean examples, illustrations, or illustrations. Any design solution described as “exemplary” or “such as” should not be construed as being more preferred or more favorable than other design solutions.
  • the use of words such as “exemplary” or “such as” is intended to present related concepts in a concrete manner that is easier to understand.
  • LTE long term evolution
  • 5th generation 5th generation
  • 5G fifth generation
  • WiFi wireless-fidelity
  • FDD frequency division duplex
  • 5G can also be called new radio (NR).
  • eMBB communication machine type communication
  • mMTC device-to-device
  • D2D device-to-device
  • V2X vehicle external communication
  • V2V vehicle to vehicle
  • IoT Internet of Things
  • mMTC may include one or more of the following communications: communications of industrial wireless sensor networks (industrial wireless sensors or network, IWSN) and communications of wearable devices, etc.
  • FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for an embodiment of the present application.
  • the wireless communication system 100 may include at least one network device, such as the network device 101 and the network device 102 shown in Figure 1.
  • the wireless communication system 100 may also include at least one terminal device.
  • the terminal device may be an aircraft 103, a mobile phone 104, and a vehicle 105 as shown in FIG. 1 .
  • the terminal device can measure the signal quality of the serving cell and cells other than the serving cell (which can be called neighboring cells) and report it to the network device.
  • the network device can instruct the terminal device to switch from one cell to another based on the measurement results of the terminal device.
  • the terminal equipment in the embodiment of the present application may also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal , wireless communications equipment, user agent or user device.
  • the terminal device in the embodiment of the present application may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, or a wireless terminal in industrial control.
  • VR virtual reality
  • AR augmented reality
  • Terminals wireless terminals in autonomous driving, and telemedicine Wireless terminals, wireless terminals in smart grids, wireless terminals in transportation security, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless Wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication functions, computing devices, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or future evolutions Terminal equipment in the public land mobile communication network (public land mobile network, PLMN), etc.
  • PLMN public land mobile network
  • the network device in the embodiment of the present application may be a device with wireless transceiver function in the access network.
  • the equipment includes but is not limited to: base station, evolved node B (evolved node B, eNB), wireless network controller (radio network controller, RNC), node B (node B, NB), base station controller, BSC), base transceiver station (BTS), home base station (e.g., home evolved nodeB, or home node B, HNB), baseband unit (BBU), wireless fidelity (wireless fidelity, WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc.
  • the device can also be a network node that constitutes a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc.
  • gNB may include centralized units (CUs) and DUs. gNB can also include an active antenna unit (active antenna unit, AAU for short).
  • CUs centralized units
  • AAU active antenna unit
  • the source access network device sends measurement configuration information to the terminal device, and uses the measurement configuration information to configure the measurement parameters for performing cell measurement and the reporting threshold for sending the measurement report for the terminal device.
  • the terminal device performs cell measurement based on the measurement configuration information, that is, measures the signal quality of the serving cell and the signal quality of cells other than the serving cell (which may be called neighboring cells).
  • the terminal device sends a measurement report to the source access network device in S203.
  • the measurement report includes the measurement result of the terminal device performing cell measurement.
  • the source access network device After receiving the measurement report, the source access network device determines to switch the terminal device to the target cell based on the measurement report in S204. In S205, the source access network device sends switching information to the terminal device to instruct the terminal device to switch to the target cell. After receiving the handover information in S205, the terminal device performs cell handover from the source cell to the target cell managed by the target access network device.
  • the access network device refers to the measurement results reported by the terminal device to determine the serving cell for switching the terminal device. Therefore, this application proposes that for high-speed moving terminal equipment, the timing for the terminal equipment to send a measurement report to the access network equipment can be determined based on the relative position relationship between the terminal equipment and the access network equipment, which can reduce the signal quality fluctuation band.
  • the probability of communication quality degradation such as interruption of connection between the terminal device and the network caused by incoming ping-pong handover or too late handover. It can improve the communication quality of terminal equipment.
  • Figure 3 is a schematic flow chart of the communication method provided by the embodiment of the present application.
  • the first access network device shown in Figure 3 is an access network device that manages the serving cell of the terminal device shown in Figure 3 .
  • the terminal device receives a reference signal from the first access network device.
  • the terminal device receives the reference signal from the access network device, so as to obtain the target parameter value in S302 based on the reference signal.
  • the reference signal is a tracking reference signal (TRS) or (channel state information-reference signal, CSI-RS).
  • TRS tracking reference signal
  • CSI-RS channel state information-reference signal
  • the terminal device obtains a target parameter value based on the reference signal.
  • the target parameter value includes at least one of a target angle or a target distance.
  • the target angle is the connection between the first access network device and the terminal device and the movement direction of the terminal device.
  • the target distance is the surface distance between the first access network device and the terminal device.
  • the target parameter value is used to characterize the relative positional relationship between the terminal device and the first access network device.
  • the target parameter may include at least one of a target angle or a target distance.
  • the terminal device may determine the reporting threshold of the measurement report in S303 based on the target parameter value.
  • the relative movement of the terminal equipment relative to the first access network equipment produces the Doppler effect, causing the reference signal received by the terminal equipment to have a Doppler frequency offset.
  • the Doppler frequency offset ⁇ f is related to the carrier frequency f and the speed of light. c.
  • the moving speed v of the terminal equipment is related to the angle ⁇ between the signal wave direction and the moving direction.
  • the Doppler frequency deviation ⁇ f can be expressed as satisfying the following formula:
  • the terminal device can obtain the phase offset of the received reference signal. Based on the obtained phase offset, the Doppler frequency offset ⁇ f can be calculated. Then based on the above formula, the target angle, that is, the reference signal can be determined.
  • the angle ⁇ between the direction of the signal (i.e., the connection between the first access network equipment and the terminal equipment) and the movement direction of the terminal equipment satisfies the following formula:
  • the terminal device may use ranging technology based on the reference signal to obtain the surface distance between the terminal device and the first access network device. For example, the terminal device can obtain the surface distance between the first access network device and the terminal device based on the carrier phase ranging technology and/or the time of arrival (TOA) ranging technology according to the received reference signal.
  • TOA time of arrival
  • the terminal device determines the first threshold value of the reporting threshold.
  • the first threshold value is the threshold value corresponding to the parameter value interval in which the target parameter value is located.
  • the reporting threshold is used to determine whether to send a measurement report.
  • the terminal device determines a threshold value of a reporting threshold for sending a cell measurement report based on at least one of the target angle or the target distance, so that the timing of the terminal device sending the measurement report to the first access network device is consistent with the relationship between the terminal device and the first access network.
  • the relative position of the device can reduce the probability of communication quality degradation such as ping-pong switching caused by signal quality fluctuations and interruption of the connection between the terminal device and the network caused by too late switching. It can improve the communication quality of terminal equipment.
  • the terminal device may adjust the threshold value of the reporting threshold based on the moving speed of the terminal device and the target parameter value.
  • the terminal device can obtain the target parameter value based on the reference signal, and determine the threshold value of the reporting threshold based on the target parameter value.
  • the terminal device determines the first threshold value of the reporting threshold, including but not limited to the following two implementations: Embodiment 1 and Embodiment 2:
  • the terminal device determines the parameter value interval in which the target parameter value is located, determines the threshold compensation amount based on the parameter value interval, and then determines the first threshold value of the reporting threshold based on the second threshold value and the threshold compensation amount.
  • the terminal device determines whether to send a measurement report to the first access network device based on the first threshold value.
  • the second threshold is a reporting threshold configured by the first access network device for the terminal device.
  • the threshold compensation amount when the equivalent horizontal distance between the first access network device and the terminal device represented by the parameter value interval is less than Or when equal to the first distance, the threshold compensation amount is a positive compensation amount.
  • the threshold compensation amount is a negative compensation amount.
  • the second distance is greater than the first distance.
  • the target parameter value includes a target angle
  • the terminal device determines the angle interval in which the target angle is located.
  • the terminal device can determine the angle interval corresponding to the target angle according to the corresponding relationship between the angle interval and the threshold compensation amount as shown in Table 1. Threshold compensation amount.
  • the corresponding relationship between the angle interval and the threshold compensation amount is predefined (such as factory configuration of the terminal device), or the access network device is preconfigured for the terminal device.
  • the terminal device determines that the angle interval where the target angle is located is ⁇ 1 ⁇ ⁇ 180°- ⁇ 1 , that is, when the terminal device is between position A and position C, the terminal device determines according to Table 1 According to the corresponding relationship shown, it can be determined that the threshold compensation amount is a positive compensation amount, that is, Vx, Vx>0.
  • the terminal device compensates Vx based on the second threshold value x th of the reporting threshold configured by the first access network device to obtain a first threshold value of x th +Vx.
  • the terminal device uses x th + Vx as the threshold value of the reporting threshold of the measurement report to determine whether to send the measurement report to the first access network device.
  • the terminal device determines that the angle interval where the target angle is located is 0 ⁇ ⁇ ⁇ ⁇ 2 or 180°- ⁇ 2 ⁇ ⁇ ⁇ 180°, the terminal device is located away from the first contact point other than position D or position E.
  • the terminal device can determine that the threshold compensation amount is a negative compensation amount, that is, -Vx. Among them, ⁇ 1 ⁇ ⁇ 2 .
  • the terminal device compensates -Vx based on the second threshold value x th to obtain the first threshold value as x th -Vx, Vx ⁇ x th .
  • the terminal device uses x th -Vx as the threshold value of the reporting threshold of the measurement report, and determines whether to send the measurement report to the first access network device.
  • the target parameter value includes the target distance
  • the terminal device determines the target distance interval where the target distance is located.
  • the terminal device can determine the target distance where the target distance is located based on the corresponding relationship between the target distance interval and the threshold compensation amount as shown in Table 2.
  • the threshold compensation amount corresponding to the distance interval.
  • the corresponding relationship between the target distance interval and the threshold compensation amount is predefined (such as factory configuration of the terminal device), or the access network device is preconfigured for the terminal device.
  • the terminal equipment determines that the target distance interval where the target distance is located is d A ⁇ d ⁇ d B , that is, when the terminal equipment is between position A and position C, it can be determined that the threshold compensation amount is positive
  • the compensation amount is Vx.
  • the terminal device uses x th + Vx as the threshold value of the reporting threshold of the measurement report to determine whether to send the measurement report to the first access network device.
  • the terminal device determines that the target distance interval in which the target distance is located is d>d D and the terminal device is in a position away from the first access network device other than position D or position E, the terminal device can determine the target distance interval.
  • the threshold compensation amount is the negative compensation amount, which is -Vx. Among them, d A ⁇ d D .
  • the terminal device uses x th -Vx as the threshold value of the reporting threshold of the measurement report to determine whether to send the measurement report to the first access network device.
  • the terminal equipment can increase the threshold value of the report threshold so that the terminal equipment can delay sending the measurement report and be able to Reducing the ping-pong handover caused by fluctuations in cell signal quality can improve the communication quality of terminal equipment.
  • the parameter value interval such as the angle interval or the target distance interval
  • the terminal equipment can lower the reporting threshold value so that the terminal equipment can send the measurement report as early as possible, giving the network enough time to prepare for handover, switching the terminal equipment to the target cell, and reducing the number of terminal equipment.
  • the disconnection from the network caused by untimely switching due to high speed. It can improve the communication quality of terminal equipment.
  • the target parameter value may include a target angle and a target distance
  • the terminal device may determine an equivalent horizontal distance between the first access network device and the terminal device based on the target angle and the target distance.
  • the terminal device can determine the distance interval corresponding to the equivalent horizontal distance.
  • the threshold compensation amount is a positive compensation amount.
  • the threshold compensation amount is negative. Amount of compensation.
  • the reporting threshold includes at least one of a signal quality threshold or a time threshold.
  • the terminal device sends the measurement to the first access network device. Report.
  • the reporting threshold is a signal quality threshold.
  • the first access network device configures the terminal device to measure the signal quality of the serving cell and the first cell through the measurement configuration information.
  • the reporting threshold includes the signal quality threshold and the first access network device configures the terminal device to measure the signal quality of the serving cell and the first cell.
  • the network equipment is configured with the signal quality threshold as the second threshold. When the signal quality of the first cell is higher than the signal quality of the serving cell, and the signal quality deviation meets the signal quality threshold, the terminal device sends a measurement report to the first access network device.
  • the terminal device determines that the threshold compensation amount of the reporting threshold is Vx RSRP , that is, the threshold value of the reporting threshold is After the terminal equipment performs cell signal quality measurement, it is determined that the signal quality of the first cell is higher than the signal quality of the serving cell, and the signal quality deviation is greater than or equal to The terminal device determines to send the measurement report to the first access network device.
  • the first access network device also configures a time threshold value that triggers the time threshold for sending the measurement report through the measurement configuration information, or is called a time to trigger threshold (TTT).
  • TTT time to trigger threshold
  • the measurement result of the terminal device satisfies When the elapsed time after the signal quality threshold meets the trigger time threshold, the terminal device sends a measurement report to the first access network device.
  • the terminal device determines that the signal quality deviation is greater than or equal to When the elapsed time is greater than or equal to the time threshold, the terminal device sends the measurement report to the first access network device. That is to say, when the equivalent horizontal distance between the terminal equipment and the first access network equipment is less than or equal to the first distance, by increasing the threshold value of the signal quality threshold, the terminal equipment can delay sending the measurement report and reduce the signal error due to The probability of ping-pong switching caused by quality fluctuations thereby improves the communication quality of terminal equipment.
  • the terminal equipment determines that the threshold compensation amount of the signal quality threshold is -Vx RSRP , that is, the threshold of the reporting threshold.
  • the value is After the terminal equipment performs cell signal quality measurement, it is determined that the signal quality of the first cell is higher than the signal quality of the serving cell, and the signal quality deviation is greater than or equal to
  • the terminal device determines to send the measurement report to the first access network device.
  • the first access network device also configures a time threshold value that triggers a time threshold for sending the measurement report through the measurement configuration information.
  • the terminal device determines that the signal quality deviation is greater than or equal to When the elapsed time is greater than or equal to the time threshold, the terminal device sends the measurement report to the first access network device. That is to say, when the equivalent horizontal distance between the terminal device and the first access network device is greater than the second distance, by lowering the signal quality threshold, the terminal device can send the measurement report in advance and reduce network switching preparation. The terminal device is disconnected from the network caused by insufficient time, thereby improving the communication quality of the terminal device.
  • the measurement report is used to indicate cell signal quality.
  • the cell signal quality meets the second threshold value.
  • the cell signal quality includes the signal quality of the serving cell of the terminal device and/or the signal quality of the first cell.
  • the third cell signal quality satisfies the second threshold value.
  • a cell is a cell other than the serving cell of the terminal device, and the second threshold value is the threshold value of the reporting threshold configured by the first access network device for the terminal device.
  • the measurement result of this cell meets the second threshold value
  • the terminal device raises the signal quality threshold to When, if the terminal device sends a measurement report, it means that the signal quality deviation is greater than or equal to the threshold value Therefore, the signal quality of the serving cell and the signal quality of the first cell satisfy the second threshold That is, the signal quality deviation amount when the signal quality of the first cell is higher than the signal quality of the serving cell is greater than the second threshold value.
  • the cell signal quality indicated by the measurement report may be the cell signal quality measured by the terminal equipment.
  • the terminal device lowers the signal quality threshold to When, if the terminal equipment sends a measurement report, it means that the signal quality deviation between the signal quality of the first cell and the signal quality of the serving cell measured by the terminal equipment is greater than or equal to the threshold value
  • the signal quality deviation is not necessarily greater than or equal to Since the measurement report of the terminal equipment needs to meet the threshold configured by the first access network equipment, the signal quality of the serving cell and the signal quality of the first cell indicated by the measurement report of the terminal equipment need to meet the second threshold, that is, the measurement The signal quality deviation between the signal quality of the first cell indicated by the report and the signal quality of the serving cell indicated by the measurement report is greater than or equal to the second threshold value.
  • the second threshold value of the signal quality threshold configured by the first access network device for the terminal device is 2 decibels per milliwatt (dBm)
  • the measurement report indicates that the signal quality of the first cell is and indicates the signal quality of the serving cell. but Signal quality of the first cell as indicated by the measurement report Greater than measured by terminal equipment and the signal quality of the serving cell indicated in the measurement report. Can be equal to the signal quality of the serving cell measured by the terminal device make or This application does not limit this.
  • the above description is given as an example in which the first access network device configures the terminal device to send a measurement report under conditions including that the signal quality of the first cell is higher than the signal quality of the serving cell, and the signal quality deviation meets the signal quality threshold.
  • the first access network device may configure the condition for the terminal device to send the measurement report including that the signal quality of the first cell meets a threshold value of the signal quality threshold.
  • the first access network device may configure a threshold value of the signal quality threshold for the terminal device (ie, an example of the second threshold value).
  • the radio access technology (RAT) of the first cell and the serving cell are different, or the first cell is called a cell of a different system than the serving cell.
  • the terminal device may adjust the threshold value of the signal quality threshold based on the obtained relative position relationship between the terminal device and the first access network device, and determine whether to send a measurement report based on the adjusted threshold value. If the terminal device sends a measurement report while lowering the signal quality threshold, the signal quality of the first cell indicated by the measurement report meets the second threshold of the signal quality threshold configured by the first access network device. value.
  • the report threshold includes a time threshold that triggers the terminal device to send a measurement report.
  • the first access network device configures the terminal device to perform cell signal quality measurement through the measurement configuration information. When the cell signal quality meets the signal quality threshold, When the elapsed time after the limit value meets the threshold value of the time threshold, the terminal device sends a measurement report to the first access network device. The first access network device configures the second threshold value of the time threshold for the terminal device. The terminal device may adjust the threshold value of the time threshold based on the relative position relationship between the terminal device and the first access network device.
  • the terminal device determines that the threshold compensation amount of the time threshold is Vx Time , that is, the threshold value of the time threshold is The terminal equipment performs cell signal quality measurement. When the cell signal quality meets the signal quality threshold, the elapsed time is greater than or equal to When, the terminal device sends a measurement report to the first access network device. That is to say, when the equivalent horizontal distance between the terminal equipment and the first access network equipment of the serving cell is less than or equal to the first distance, the terminal equipment can delay sending the measurement report, thereby reducing the probability of ping-pong handover caused by signal quality fluctuations, thereby Improve the communication quality of terminal equipment.
  • the terminal device determines that the threshold compensation amount of the time threshold is -Vx Time , that is, the threshold value of the time threshold. for The terminal equipment performs cell signal quality measurement. When the cell signal quality meets the signal quality threshold, the elapsed time is greater than or equal to The terminal device sends a measurement report to the first access network device. That is to say, when the equivalent horizontal distance between the terminal device and the first access network device is greater than the second distance, the terminal device can send a measurement report in advance to reduce the risk of the terminal device being disconnected from the network due to insufficient preparation time for network switching. Off-network situations, thereby improving the communication quality of terminal equipment.
  • the terminal device may determine whether the signal quality meets the signal quality threshold based on the threshold value of the signal quality threshold configured by the first access network device.
  • the reporting threshold includes a signal quality threshold and a time threshold. The terminal device adjusts the signal quality threshold based on the relative position relationship between the terminal device and the first access network device represented by the target parameter value. The threshold value in turn adjusts the threshold value of the time threshold.
  • the terminal equipment determines the threshold compensation amount Vx RSRP of the signal quality threshold and the threshold compensation amount Vx Time of the time threshold, The terminal device determines whether to send a measurement report to the first access network device based on the signal quality threshold and the time threshold after the compensation threshold value. It can reduce the probability of ping-pong handover caused by signal quality fluctuations, thereby improving the communication quality of terminal equipment.
  • the terminal equipment determines the threshold compensation amount of the signal quality threshold -Vx RSRP , and the threshold compensation amount of the time threshold - Vx Time , the terminal device determines whether to send a measurement report to the first access network device based on the signal quality threshold and time threshold after the compensation threshold value. It can reduce the disconnection between the terminal device and the network caused by insufficient network switching preparation time, thereby improving the communication quality of the terminal device.
  • the terminal device can determine the parameter value interval corresponding to the target measurement value based on the target measurement value, and determine the threshold compensation amount based on the parameter value interval.
  • the first access network device may configure a corresponding relationship between a parameter value range and a threshold value for the terminal device.
  • the corresponding relationship includes a corresponding relationship between multiple parameter value ranges and multiple threshold values of the reporting threshold.
  • the terminal device determines the parameter value interval in which the target parameter value is located based on the target parameter value and the corresponding relationship, and determines the relationship between the parameter value interval and The corresponding threshold value is the threshold value of the reporting threshold.
  • the target parameter value includes the target angle.
  • the first access network device can send correspondence configuration information to the terminal device.
  • the correspondence configuration information is used to configure the correspondence relationship as shown in Table 3.
  • the first access network device is the terminal.
  • the device is configured with three target angle angle intervals and the reporting threshold value corresponding to each angle interval.
  • the terminal device determines the reporting threshold value as x th1 ; when the target angle is in the angle interval ⁇ 2 ⁇ ⁇ ⁇ ⁇ 3 , the terminal device determines the threshold value of the reporting threshold as x th2 ; when the target angle is in the angle interval ⁇ 3 ⁇ ⁇ ⁇ 180°, the terminal device determines the reporting threshold
  • the threshold value for determining the reporting threshold is x th3 , where x th1 ⁇ x th2 and x th2 >x th3 .
  • the target parameter value includes the target distance
  • the first access network device can send the corresponding relationship configuration information to the terminal device.
  • the corresponding relationship configuration information is used to configure the corresponding relationship as shown in Table 4.
  • the first access network device is The terminal device is configured with 4 target distance intervals and the reporting threshold value corresponding to each distance interval. For example, when the target distance interval is d A ⁇ d ⁇ d B , the terminal device determines the reporting threshold value.
  • the terminal device determines the threshold value of the reporting threshold as x th1 ; when the target distance is in the target distance interval d C ⁇ d ⁇ d A , the terminal device determines the threshold value of the reporting threshold as x th2 ; when the target distance is in the target distance interval d C ⁇ d ⁇ d D , the terminal device determines the threshold value of the reporting threshold as x th3 ; and, when the target distance interval is d D ⁇ d, the terminal device determines the threshold value of the reporting threshold as x th4 .
  • the terminal device can determine the corresponding threshold value of the reporting threshold based on the relative position relationship between the terminal device and the first access network device and the corresponding relationship between the relative position relationship of the network configuration and the threshold value, so that the terminal The device sends measurement reports at the appropriate time based on the network configuration, reducing the probability of ping-pong handover or disconnection from the network, and improving the communication quality of the terminal device.
  • each network element may include a hardware structure and/or a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above functions is performed as a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • Figure 6 is a schematic block diagram of a communication device provided by this application.
  • the communication device 600 may include a transceiver unit 620 .
  • the communication device 600 may correspond to the terminal device in the above method, or be configured in (or used for) chips in terminal equipment, or other devices, modules, circuits or units that can implement methods of terminal equipment.
  • the communication device 600 may include a unit for performing the method performed by the terminal device in the method shown in FIG. 3 . Moreover, each unit in the communication device 600 and the above-mentioned other operations and/or functions are respectively intended to implement the corresponding flow of the method shown in FIG. 3 .
  • the communication device 600 may also include a processing unit 610, which may be used to process instructions or data to implement corresponding operations.
  • a processing unit 610 which may be used to process instructions or data to implement corresponding operations.
  • the transceiver unit 620 in the communication device 600 may be an input/output interface or circuit of the chip, and the processing in the communication device 600 Unit 610 may be a processor in a chip.
  • the communication device 600 may also include a storage unit 630, which may be used to store instructions or data, and the processing unit 610 may execute the instructions or data stored in the storage unit to enable the communication device to implement corresponding operations. .
  • the transceiver unit 620 in the communication device 600 can be implemented through a communication interface (such as a transceiver or an input/output interface), and can, for example, correspond to the transceiver 710 in the terminal device 700 shown in FIG. 7 .
  • the processing unit 610 in the communication device 600 may be implemented by at least one processor, for example, may correspond to the processor 720 in the terminal device 700 shown in FIG. 7 .
  • the processing unit 610 in the communication device 600 can also be implemented by at least one logic circuit.
  • the storage unit 630 in the communication device 600 may correspond to the memory in the terminal device 700 shown in FIG. 7 .
  • the communication device 600 may correspond to the access network equipment in the above method, for example, or a chip configured in (or used for) the access network equipment, or other devices capable of realizing access. Devices, modules, circuits or units of network equipment and methods.
  • the communication device 600 may include a unit for performing the method performed by the access network device in the method shown in FIG. 3 . Moreover, each unit in the communication device 600 and the above-mentioned other operations and/or functions are respectively intended to implement the corresponding flow of the method shown in FIG. 3 .
  • the communication device 600 may also include a processing unit 610, which may be used to process instructions or data to implement corresponding operations.
  • a processing unit 610 which may be used to process instructions or data to implement corresponding operations.
  • the transceiver unit 620 in the communication device 600 may be an input/output interface or circuit of the chip.
  • the processing unit 610 may be a processor in a chip.
  • the communication device 600 may also include a storage unit 630, which may be used to store instructions or data, and the processing unit 610 may execute the instructions or data stored in the storage unit to enable the communication device to implement corresponding operations. .
  • the transceiver unit 620 in the communication device 600 can be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it can correspond to the one shown in Figure 8 Transceiver 810 in access network equipment 800.
  • the processing unit 810 in the communication device 600 may be implemented by at least one processor, for example, may correspond to the processor 820 in the access network device 800 shown in FIG. 8 .
  • the processing unit 610 in the communication device 600 may be implemented by at least one processor.
  • a logic circuit is implemented.
  • the storage unit 630 in the communication device 600 may correspond to the memory in the access network device 800 shown in FIG. 8 .
  • Figure 7 is a schematic structural diagram of the terminal device 700 provided by this application.
  • the terminal device 700 can be applied in the system as shown in Figure 1 to perform the functions of the terminal device in the above method.
  • the terminal device 700 includes a processor 720 and a transceiver 710 .
  • the terminal device 700 further includes a memory.
  • the processor 720, the transceiver 710 and the memory can communicate with each other through internal connection paths and transmit control signals and/or data signals.
  • the memory is used to store computer programs, and the processor 720 is used to execute the computer program in the memory to control the transceiver 710 to send and receive signals.
  • the above-mentioned processor 720 can be used to perform the actions implemented internally by the terminal device described in the previous method, and the transceiver 710 can be used to perform the actions sent by the terminal device to the access network device or received from the access network device described in the previous method. action.
  • the transceiver 710 can be used to perform the actions sent by the terminal device to the access network device or received from the access network device described in the previous method. action.
  • the above terminal device 700 may also include a power supply for providing power to various devices or circuits in the terminal device.
  • Figure 8 is a schematic structural diagram of the access network device 800 provided by this application.
  • the access network device 800 can be applied in the system as shown in Figure 1. If the access network device 800 corresponds to the access network device in the system as shown in Figure 1, it can perform the functions of the access network device in the above method. .
  • the access network device 800 includes a processor 820 and a transceiver 810.
  • the access network device 800 further includes a memory.
  • the processor 820, the transceiver 810 and the memory can communicate with each other through internal connection paths to transmit control and/or data signals.
  • the memory is used to store computer programs, and the processor 820 is used to execute the computer program in the memory to control the transceiver 810 to send and receive signals.
  • the above-mentioned processor 820 can be used to perform the actions implemented internally by the access network device described in the previous method, and the transceiver 810 can be used to perform the actions described in the previous method from the access network device to the access network device or from the access network device.
  • the action received by the network device please refer to the description in the previous method and will not be repeated here.
  • the above-mentioned access network device 800 may also include a power supply for providing power to various devices or circuits in the access network device.
  • the processor and the memory can be combined into a processing device, and the processor is used to execute the program code stored in the memory to implement the above functions.
  • the memory can also be integrated in the processor or independent of the processor.
  • the processor may correspond to the processing unit in FIG. 6 .
  • the transceiver may correspond to the transceiver unit in Figure 6.
  • a transceiver may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.
  • the processor can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which can implement or execute this application.
  • a general-purpose processor may be a microprocessor or any conventional processor, etc.
  • the steps combined with the method of this application can be directly implemented by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the memory can be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or it can be a volatile memory (volatile memory), such as a random access memory.
  • Memory random-access memory, RAM.
  • Memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in this application can also be a circuit or any other device that can realize the storage function, used to store program instructions and /or data.
  • This application also provides a processing device, including a processor and a (communication) interface; the processor is used to execute any of the above methods.
  • the processing device may be one or more chips.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC), or It can be a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller unit , MCU), it can also be a programmable logic device (PLD) or other integrated chip.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processing unit
  • NP network processor
  • DSP digital signal processing circuit
  • MCU microcontroller unit
  • PLD programmable logic device
  • the present application also provides a computer program product.
  • the computer program product includes: computer program code.
  • the computer program code When executed by one or more processors, it causes a device including the processor to execute The method shown in Figure 3.
  • the technical solutions provided in this application can be implemented in whole or in part through software, hardware, firmware, or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, processes or functions according to the present invention are generated in whole or in part.
  • the above computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or may contain One or more data storage devices such as servers and data centers integrated with available media.
  • the available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, digital video disc (digital video disc, DVD)), or semiconductor media, etc.
  • this application also provides a computer-readable storage medium, which stores program code.
  • the program code When the program code is run by one or more processors, the program code includes the processor.
  • the device performs the method shown in Figure 3.
  • this application also provides a system, which includes one or more of the aforementioned terminal devices.
  • the system may further include one or more of the aforementioned access network devices.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the devices described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of this solution.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé de communication et un appareil de communication. Le procédé comprend : par un dispositif terminal, la réception d'un signal de référence en provenance d'un dispositif de réseau d'accès et l'obtention d'une valeur de paramètre cible selon le signal de référence, la valeur de paramètre cible comprenant un angle cible et/ou une distance cible, l'angle cible étant un angle inclus entre une ligne reliant le dispositif de réseau d'accès et le dispositif terminal et une direction de déplacement du dispositif terminal, et la distance cible étant une distance à la surface au sol entre le dispositif de réseau d'accès et le dispositif terminal ; et la détermination, par le dispositif terminal, d'un seuil de rapport en tant que première valeur de seuil, la première valeur de seuil étant une valeur de seuil correspondant à une plage de valeurs de paramètre dans laquelle se trouve la valeur de paramètre cible, et le seuil de rapport étant utilisé pour déterminer s'il faut envoyer un rapport de mesure. La présente demande vise à améliorer la fiabilité des communications du dispositif terminal.
PCT/CN2023/080027 2022-03-22 2023-03-07 Procédé de communication et appareil de communication WO2023179353A1 (fr)

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Citations (4)

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US20150092746A1 (en) * 2013-09-30 2015-04-02 Telefonaktiebolaget L M Ericsson (Publ) Enhancement on radio link failure report to record necessary timing details for a dual-threshold handover trigger event
CN106686647A (zh) * 2015-11-05 2017-05-17 索尼公司 无线通信设备和无线通信方法
CN113330777A (zh) * 2019-02-22 2021-08-31 松下电器（美国）知识产权公司 测量报告和切换中涉及的用户设备
CN114125879A (zh) * 2020-08-27 2022-03-01 华为技术有限公司 获取传输参数的方法、装置及系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150092746A1 (en) * 2013-09-30 2015-04-02 Telefonaktiebolaget L M Ericsson (Publ) Enhancement on radio link failure report to record necessary timing details for a dual-threshold handover trigger event
CN106686647A (zh) * 2015-11-05 2017-05-17 索尼公司 无线通信设备和无线通信方法
CN113330777A (zh) * 2019-02-22 2021-08-31 松下电器（美国）知识产权公司 测量报告和切换中涉及的用户设备
CN114125879A (zh) * 2020-08-27 2022-03-01 华为技术有限公司 获取传输参数的方法、装置及系统

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