WO2023023904A1 - Procédé de détermination d'un temps effectif d'avance temporelle dans un réseau non terrestre, et appareil associé - Google Patents

Procédé de détermination d'un temps effectif d'avance temporelle dans un réseau non terrestre, et appareil associé Download PDF

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Publication number
WO2023023904A1
WO2023023904A1 PCT/CN2021/114131 CN2021114131W WO2023023904A1 WO 2023023904 A1 WO2023023904 A1 WO 2023023904A1 CN 2021114131 W CN2021114131 W CN 2021114131W WO 2023023904 A1 WO2023023904 A1 WO 2023023904A1
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WO
WIPO (PCT)
Prior art keywords
timer
duration
value
terminal device
valid
Prior art date
Application number
PCT/CN2021/114131
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English (en)
Chinese (zh)
Inventor
池连刚
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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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 CN202180002607.1A priority Critical patent/CN116018840A/zh
Priority to PCT/CN2021/114131 priority patent/WO2023023904A1/fr
Publication of WO2023023904A1 publication Critical patent/WO2023023904A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • 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

Definitions

  • the duration of the TA valid timer can be calculated according to the configuration parameters configured by the network equipment for calculating the duration of the uplink timing advance TA valid timer.
  • the related first scaling factor and the second scaling factor related to the movement of the terminal equipment can make the effective time of the determined TA value more accurately adapt to the movement of the satellite and the movement of the terminal equipment.
  • the complexity of the terminal equipment can be reduced.
  • a scaling factor and set one or more values of the second scaling factor related to the mobile speed of the terminal equipment, and use the first scaling factor, the second scaling factor and the reference value of the timer duration to calculate the uplink timing advance amount (TA) the duration of the valid timer, so that the calculated uplink timing advance (TA) duration of the valid timer can more accurately adapt to the movement of the satellite and the movement of the terminal.
  • TA uplink timing advance
  • Step 303 Determine the target factor value of the second scaling factor corresponding to the current moving speed level according to the current moving speed level of the terminal device.
  • Step 304 Calculate the duration of the TA effective timer according to the reference value of the timer duration in the configuration parameters, the first scaling factor and the target factor value.
  • the TA obtained by the terminal device can be determined again.
  • the value of TA is valid within these 5 seconds, that is, the value of TA re-acquired by the terminal device is valid within these 5 seconds.
  • the value of the restarted timer is greater than or equal to the duration of the TA valid timer (for example, 5 seconds)
  • the duration of the TA valid timer can be calculated according to the configuration parameters configured by the network equipment for calculating the duration of the uplink timing advance TA valid timer.
  • the first scaling factor related to movement and the second scaling factor related to terminal equipment movement can make the effective time of the determined TA value more accurately adapt to the movement of the satellite and the movement of the terminal equipment, while maintaining effective uplink synchronization In this case, the complexity of the terminal equipment can be reduced.
  • UE-specific indicates the TA estimated by the UE based on its own position and satellite position, corresponding to the round-trip delay from the UE to the satellite (service link);
  • N TA common represents the public TA controlled by the network, which is used to compensate the round-trip delay from the satellite to the ground station (feeder link);
  • N TA offset is a fixed offset value
  • T c is an absolute value unit of time.
  • N TA, UE-specific is the round-trip delay of service link transmission, and the terminal device can be calculated according to its own GNSS positioning and satellite position (wherein, the satellite position can be obtained through calculation of ephemeris information).
  • N TA, UE-specific can be named as open-loop TA.
  • the method provided in the embodiment of the present application may be used to determine the valid time of the open-loop TA (that is, N TA, UE-specific ) in the non-terrestrial network NTN.
  • the network device configures configuration parameters for the open-loop TA (that is, N TA, UE-specific ) effective timer for the terminal device, where the configuration parameters may include a reference value of the timer, a satellite movement-related first One or more values of a scaling factor and a second scaling factor related to the moving speed of the terminal device, so that the terminal device can calculate the open-loop TA (ie N TA, UE-specific ) according to the configuration parameters configured by the network device The duration of the valid timer, and then according to the duration of the valid timer of the open-loop TA (ie, N TA, UE-specific ), determine the valid time of the value of the open-loop TA (ie, N TA, UE-specific ).
  • the configuration parameters may include a reference value of the timer, a satellite movement-related first One or more values of a scaling factor and a second scaling factor related to the moving speed of the terminal device, so that the terminal device can calculate the open-loop TA (
  • the method for determining the effective time of the uplink timing advance in the non-terrestrial network NTN in the embodiment of the present application can be applied to network equipment. As shown in Fig. 4, the method for determining the effective time of the uplink timing advance in the non-terrestrial network NTN may include but not limited to the following steps.
  • Step 401 configuring configuration parameters used for calculating the duration of the uplink timing advance TA valid timer for the terminal device.
  • Step 402 sending configuration parameters to the terminal device.
  • the network device may send configuration parameters configured for the terminal device to the terminal device.
  • the terminal device receives the configuration parameter configured by the network device, and the configuration parameter may include one or more of the reference value of the timer duration; the first scaling factor related to satellite movement; and the second scaling factor related to the terminal device's moving speed. value.
  • the terminal device can calculate the duration of the TA valid timer according to the configuration parameter.
  • the second scaling factor in the configuration parameters configured by the network device for the terminal device may have one or more values, and each value corresponds to a speed level of a terminal device, so that the terminal device can The speed can match the appropriate factor value from the second scaling factor, so that the factor value matched with its own moving speed can be used to calculate the duration of the TA effective timer, so that the calculation result can be more accurate for the movement of the video satellite and the terminal.
  • Mobile conditions thereby reducing the complexity of the terminal while maintaining effective uplink synchronization.
  • FIG. 5 is a flow chart of another method for determining the effective time of uplink timing advance in the non-terrestrial network NTN provided by the embodiment of the present application.
  • the method for determining the effective time of the uplink timing advance in the non-terrestrial network NTN in the embodiment of the present application can be applied to network equipment. As shown in Fig. 5, the method for determining the effective time of the uplink timing advance in the non-terrestrial network NTN may include but not limited to the following steps.
  • the second scaling factor in the configuration parameters configured by the network device for the terminal device may have one or more values, and each value corresponds to a speed level of a terminal device, so that the terminal device can The speed can match the appropriate factor value from the second scaling factor, so that the factor value matched with its own moving speed can be used to calculate the duration of the TA effective timer, so that the calculation result can be more accurate for the movement of the video satellite and the terminal.
  • Mobile conditions thereby reducing the complexity of the terminal while maintaining effective uplink synchronization.
  • the terminal device can determine its own current moving speed level, and based on the correspondence between the value of the second scaling factor and the moving speed level of the terminal device, the second scaling factor can be obtained from the configuration parameters Determine the target factor value of the second scaling factor corresponding to the current movement speed level from one or more values of value, calculate the duration of the TA valid timer, and then determine the valid time of the TA according to the duration of the TA valid timer.
  • TA valid timer duration based_Value*alpha_1*alpha_2 (1)
  • the terminal device performs an addition operation on the reference value of the timer duration, the first scaling factor and the target factor value, and determines the duration of the TA valid timer according to the obtained sum value. For example, the terminal device may add the reference value of the timer duration, the first scaling factor and the target factor value, and use the sum value as the duration of the TA valid timer.
  • the terminal device when acquiring the value of TA for the first time, can start the timer of TA, and when the value of the timer of TA is less than the duration of the valid timer of the TA, determine the value of TA acquired by the terminal device within the validity period. For example, assuming that the duration of calculating the valid timer of TA is 5 seconds, the terminal device obtains the value of TA for the first time, and starts the timer of TA, and the value of the timer of TA is less than the duration of the valid timer of TA (such as 5 seconds ), it can be determined that the TA value acquired by the terminal device for the first time is valid within these 5 seconds, that is, the TA value acquired by the terminal device is valid within these 5 seconds. For another example, when the value of the TA timer is greater than or equal to the duration of the TA valid timer (for example, 5 seconds), it may be determined that the TA value acquired by the terminal device for the first time is in an invalid state.
  • the TA obtained by the terminal device can be determined again.
  • the value of TA is valid within these 5 seconds, that is, the value of TA re-acquired by the terminal device is valid within these 5 seconds.
  • the value of the restarted timer is greater than or equal to the duration of the TA valid timer (for example, 5 seconds)
  • the processing module 602 is configured to: when reacquiring the TA, restart the timer of the TA; in response to the value of the timer of the TA being less than the duration of the valid timer of the TA, determine that the value of the TA is within the valid time.
  • the second scaling factor has one or more values, and each value corresponds to a speed level of a terminal device.
  • the communication device 70 is a network device: the processor 701 is used for step 401 in FIG. 4 and step 501 in FIG. 5 .
  • the transceiver 705 is used to execute step 402 in FIG. 4 and step 502 in FIG. 5 .
  • the communication device described in the above embodiments may be a network device or a terminal device (such as the first terminal device in the foregoing method embodiments), but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device can be Not limited by Figure 7.
  • a communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • a set of one or more ICs may also include storage components for storing data and computer programs;
  • ASIC such as modem (Modem);
  • the embodiment of the present application also provides a system for determining the duration of the side link.
  • the system includes the communication device as the terminal device and the communication device as the network device in the aforementioned embodiment in FIG.
  • the present application also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any one of the above method embodiments are realized.
  • the present application also provides a computer program product, which implements the functions of any one of the above method embodiments when executed by a computer.
  • all or part of them may be implemented by 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 comprises one or more computer programs. When the computer program is loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present application will be generated.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • At least one in this application can also be described as one or more, and multiple can be two, three, four or more, and this application does not make a limitation.
  • the technical feature is distinguished by "first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in the “first”, “second”, “third”, “A”, “B”, “C” and “D” have no sequence or order of magnitude among the technical features described.
  • the corresponding relationships shown in the tables in this application can be configured or predefined.
  • the values of the information in each table are just examples, and may be configured as other values, which are not limited in this application.
  • the corresponding relationship shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, for example, splitting, merging, and so on.
  • the names of the parameters shown in the titles of the above tables may also adopt other names understandable by the communication device, and the values or representations of the parameters may also be other values or representations understandable by the communication device.
  • other data structures can also be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables can be used wait.

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

Abstract

Les modes de réalisation de la présente demande concernent un procédé de détermination d'un temps effectif d'avance temporelle (TA) en liaison montante dans un réseau non terrestre (NTN), et un appareil associé, lesquels procédé et appareil pouvant être appliqués à un système NTN. Le procédé comprend : la réception, par un dispositif terminal, d'informations de configuration qui sont configurées par un dispositif de réseau, les informations de configuration comprenant au moins des paramètres de configuration qui sont utilisés lorsque le dispositif terminal est utilisé pour calculer la durée d'une temporisation effective TA en liaison montante ; et, par le dispositif terminal, le calcul de la durée de la temporisation effective TA selon les paramètres de configuration, et la détermination d'un temps effectif TA selon la durée de la temporisation effective TA. Par la mise en œuvre des modes de réalisation de la présente demande, il peut être assuré qu'une synchronisation de liaison montante effective peut être maintenue dans un NTN.
PCT/CN2021/114131 2021-08-23 2021-08-23 Procédé de détermination d'un temps effectif d'avance temporelle dans un réseau non terrestre, et appareil associé WO2023023904A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202180002607.1A CN116018840A (zh) 2021-08-23 2021-08-23 用于ntn网络中的ta有效时间的确定方法及其装置
PCT/CN2021/114131 WO2023023904A1 (fr) 2021-08-23 2021-08-23 Procédé de détermination d'un temps effectif d'avance temporelle dans un réseau non terrestre, et appareil associé

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PCT/CN2021/114131 WO2023023904A1 (fr) 2021-08-23 2021-08-23 Procédé de détermination d'un temps effectif d'avance temporelle dans un réseau non terrestre, et appareil associé

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102281568A (zh) * 2010-06-13 2011-12-14 中兴通讯股份有限公司 路测测量记录控制方法、路测系统及路测终端
CN104704892A (zh) * 2012-08-17 2015-06-10 高通股份有限公司 用于无线上行链路随机接入过程期间的定时同步的方法和装置
CN110611949A (zh) * 2019-09-12 2019-12-24 成都天奥集团有限公司 一种卫通系统上行定时提前量信关站预测方法
CN112398600A (zh) * 2019-08-12 2021-02-23 华为技术有限公司 一种通信方法及设备
US20210105693A1 (en) * 2019-10-04 2021-04-08 Samsung Electronics Co., Ltd. Virtual tracking or registration areas for non terrestrial networks

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102281568A (zh) * 2010-06-13 2011-12-14 中兴通讯股份有限公司 路测测量记录控制方法、路测系统及路测终端
CN104704892A (zh) * 2012-08-17 2015-06-10 高通股份有限公司 用于无线上行链路随机接入过程期间的定时同步的方法和装置
CN112398600A (zh) * 2019-08-12 2021-02-23 华为技术有限公司 一种通信方法及设备
CN110611949A (zh) * 2019-09-12 2019-12-24 成都天奥集团有限公司 一种卫通系统上行定时提前量信关站预测方法
US20210105693A1 (en) * 2019-10-04 2021-04-08 Samsung Electronics Co., Ltd. Virtual tracking or registration areas for non terrestrial networks

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