CN110839262A - Cell reselection method, network side device and terminal - Google Patents
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Abstract
本发明提供了一种小区重选方法、网络侧设备及终端，属于无线通信技术领域。其中，小区重选方法，应用于终端，所述方法包括：判断自身的运动状态，所述运动状态包括高度信息和/或速度信息；根据自身的运动状态确定不同类型小区的重选优先级。本发明的技术方案能够使得终端重选到最合适的目标小区。
The invention provides a cell reselection method, network side equipment and terminal, which belong to the technical field of wireless communication. The cell reselection method is applied to a terminal, and the method includes: judging its own motion state, where the motion state includes altitude information and/or speed information; and determining reselection priorities of different types of cells according to its own motion state. The technical scheme of the present invention enables the terminal to reselect to the most suitable target cell.
Description
技术领域technical field
本发明涉及无线通信技术领域，特别是指一种小区重选方法、网络侧设备及终端。The present invention relates to the technical field of wireless communication, in particular to a cell reselection method, network side equipment and terminal.
背景技术Background technique
现有终端的小区重选方案只考虑了速度，且终端速度的估计方法是单位时间内通过的(切换或者重选)的小区数量。另外，如果终端在进行小区重选时考虑到高度，一种可行方案是终端根据其GPS测量到的高度信息来判别，但是问题是GPS高度信息精度有限而且终端并不知道基站高度信息，因此无法辨别自己是否高于基站。综上所述，现有终端的小区重选方案考虑的因素有限，无法保证重选到最合适的目标小区。The cell reselection scheme of the existing terminal only considers the speed, and the estimation method of the terminal speed is the number of cells passed (handover or reselection) per unit time. In addition, if the terminal considers the altitude when performing cell reselection, a feasible solution is to judge the terminal according to the altitude information measured by its GPS, but the problem is that the accuracy of the GPS altitude information is limited and the terminal does not know the altitude information of the base station, so it cannot be Identify if you are above the base station. To sum up, the existing terminal cell reselection scheme considers limited factors, and cannot guarantee that the most suitable target cell is reselected.
发明内容SUMMARY OF THE INVENTION
本发明要解决的技术问题是提供一种小区重选方法、网络侧设备及终端，能够使得终端重选到最合适的目标小区。The technical problem to be solved by the present invention is to provide a cell reselection method, network side equipment and terminal, which can make the terminal reselect to the most suitable target cell.
为解决上述技术问题，本发明的实施例提供技术方案如下：In order to solve the above-mentioned technical problems, the embodiments of the present invention provide the following technical solutions:
一方面，提供一种小区重选方法，应用于终端，所述方法包括：In one aspect, a cell reselection method is provided, applied to a terminal, the method includes:
判断自身的运动状态，所述运动状态包括高度信息和/或速度信息；Judging its own motion state, the motion state includes altitude information and/or speed information;
根据自身的运动状态确定不同类型小区的重选优先级。The reselection priorities of different types of cells are determined according to their own motion states.
进一步地，所述方法还包括：Further, the method also includes:
接收网络侧设备下发的系统消息，所述系统消息中携带有以下参数中的至少一种：Receive a system message sent by a network-side device, where the system message carries at least one of the following parameters:
小区或波束的速度标识，所述速度标识用以标识小区或波束是为对应速度的用户提供服务；The speed identification of the cell or beam, the speed identification is used to identify that the cell or beam provides services for users of the corresponding speed;
小区或波束的飞行标识，所述飞行标识用以标识小区或波束是为飞行终端提供服务；The flight identification of the cell or beam, the flight identification is used to identify that the cell or beam provides services for the flight terminal;
飞行邻区列表；List of flight neighborhoods;
多普勒频偏的门限值。Threshold value for Doppler frequency offset.
进一步地，所述判断自身的运动状态包括：Further, the motion state of the judgment itself includes:
根据所述多普勒频偏的门限值判断自身的运动速度状态。According to the threshold value of the Doppler frequency offset, determine its own motion speed state.
进一步地，所述根据自身的运动状态确定不同类型小区的重选优先级包括：Further, determining the reselection priorities of different types of cells according to their own motion state includes:
将速度标识与自身的运动速度状态匹配的小区设置为重选优先级最高的小区。The cell whose speed identification matches its own motion speed state is set as the cell with the highest reselection priority.
进一步地，所述门限值包括第一多普勒频偏门限值和第二多普勒频偏门限值，所述第一多普勒频偏门限值小于所述第二多普勒频偏门限值，所述根据所述多普勒频偏的门限值判断自身的运动速度状态包括：Further, the threshold value includes a first Doppler frequency offset threshold value and a second Doppler frequency offset threshold value, and the first Doppler frequency offset threshold value is smaller than the second Doppler frequency offset threshold value. The threshold value of the Doppler frequency offset, and the judgment of its own motion speed state according to the threshold value of the Doppler frequency offset includes:
计算自身的多普勒频偏值；Calculate its own Doppler frequency offset value;
在计算的多普勒频偏值小于所述第一多普勒频偏门限值时，判断自身属于低速状态；在计算的多普勒频偏值小于所述第二多普勒频偏门限值，大于所述第一多普勒频偏门限值时，判断自身处于中速状态；在计算的多普勒频偏值大于所述第二多普勒频偏门限值时，判断自身处于高速状态。When the calculated Doppler frequency offset value is less than the first Doppler frequency offset threshold value, it is judged that it belongs to the low-speed state; when the calculated Doppler frequency offset value is less than the second Doppler frequency offset threshold When the calculated Doppler frequency offset value is greater than the second Doppler frequency offset threshold value, it is judged that it is in a medium-speed state. itself at high speed.
进一步地，所述判断自身的运动状态包括：Further, the motion state of the judgment itself includes:
在接收到的驻留小区的系统消息中携带有飞行标识且检测到的邻区包含在所述飞行邻区列表中时，判断自身处于飞行状态。When the received system message of the camping cell carries the flight identifier and the detected neighbor cells are included in the flight neighbor cell list, it is determined that it is in a flight state.
进一步地，所述根据自身的运动状态确定不同类型小区的重选优先级包括：Further, determining the reselection priorities of different types of cells according to their own motion state includes:
将携带有飞行标识的小区设置为重选优先级最高的小区。Set the cell carrying the flight ID as the cell with the highest reselection priority.
进一步地，所述根据自身的运动状态确定不同类型小区的重选优先级包括：Further, determining the reselection priorities of different types of cells according to their own motion state includes:
在自身处于飞行状态时，按照所有携带有飞行标识的小区中速度标识与自身的运动速度状态的接近程度确定小区的重选优先级，将最接近的小区设置为重选优先级最高的小区；When it is in the flying state, the reselection priority of the cell is determined according to the proximity of the speed identification in all the cells carrying the flying identification to its own motion speed state, and the closest cell is set as the cell with the highest reselection priority;
在自身处于非飞行状态时，按照所有不携带有飞行标识的小区中速度标识与自身的运动速度状态的接近程度确定小区的重选优先级，将最接近的小区设置为重选优先级最高的小区。When it is in the non-flying state, determine the reselection priority of the cell according to the proximity of the speed identification in all the cells that do not carry the flying identification to its own motion speed state, and set the closest cell as the one with the highest reselection priority. community.
本发明实施例还提供了一种小区重选方法，应用于网络侧设备，所述方法包括：The embodiment of the present invention also provides a cell reselection method, which is applied to a network side device, and the method includes:
向终端发送系统消息，所述系统消息中携带有以下参数中的至少一种：Send a system message to the terminal, where the system message carries at least one of the following parameters:
小区或波束的速度标识，所述速度标识用以标识小区或波束是为对应速度的用户提供服务；The speed identification of the cell or beam, the speed identification is used to identify that the cell or beam provides services for users of the corresponding speed;
小区或波束的飞行标识，所述飞行标识用以标识小区或波束是为飞行终端提供服务；The flight identification of the cell or beam, the flight identification is used to identify that the cell or beam provides services for the flight terminal;
飞行邻区列表；List of flight neighborhoods;
多普勒频偏的门限值。Threshold value for Doppler frequency offset.
本发明实施例还提供了一种终端，包括处理器和收发器，The embodiment of the present invention also provides a terminal, including a processor and a transceiver,
所述处理器用于判断自身的运动状态，所述运动状态包括高度信息和/或速度信息，并根据自身的运动状态确定不同类型小区的重选优先级。The processor is used for judging its own motion state, where the motion state includes height information and/or speed information, and determines reselection priorities of different types of cells according to its own motion state.
进一步地，所述收发器用于接收网络侧设备下发的系统消息，所述系统消息中携带有以下参数中的至少一种：Further, the transceiver is used to receive a system message sent by a network side device, and the system message carries at least one of the following parameters:
小区或波束的速度标识，所述速度标识用以标识小区或波束是为对应速度的用户提供服务；The speed identification of the cell or beam, the speed identification is used to identify that the cell or beam provides services for users of the corresponding speed;
小区或波束的飞行标识，所述飞行标识用以标识小区或波束是为飞行终端提供服务；The flight identification of the cell or beam, the flight identification is used to identify that the cell or beam provides services for the flight terminal;
飞行邻区列表；List of flight neighborhoods;
多普勒频偏的门限值。Threshold value for Doppler frequency offset.
进一步地，所述处理器具体用于根据所述多普勒频偏的门限值判断自身的运动速度状态。Further, the processor is specifically configured to judge its own motion speed state according to the threshold value of the Doppler frequency offset.
进一步地，所述处理器具体用于将速度标识与自身的运动速度状态匹配的小区设置为重选优先级最高的小区。Further, the processor is specifically configured to set the cell whose speed identifier matches its own motion speed state as the cell with the highest reselection priority.
进一步地，所述门限值包括第一多普勒频偏门限值和第二多普勒频偏门限值，所述第一多普勒频偏门限值小于所述第二多普勒频偏门限值，Further, the threshold value includes a first Doppler frequency offset threshold value and a second Doppler frequency offset threshold value, and the first Doppler frequency offset threshold value is smaller than the second Doppler frequency offset threshold value. The frequency deviation threshold value,
所述处理器具体用于计算自身的多普勒频偏值；在计算的多普勒频偏值小于所述第一多普勒频偏门限值时，判断自身属于低速状态；在计算的多普勒频偏值小于所述第二多普勒频偏门限值，大于所述第一多普勒频偏门限值时，判断自身处于中速状态；在计算的多普勒频偏值大于所述第二多普勒频偏门限值时，判断自身处于高速状态。The processor is specifically used to calculate its own Doppler frequency offset value; when the calculated Doppler frequency offset value is less than the first Doppler frequency offset threshold value, it is judged that it belongs to a low-speed state; When the Doppler frequency offset value is less than the second Doppler frequency offset threshold value and greater than the first Doppler frequency offset threshold value, it is judged that it is in a medium-speed state; when the calculated Doppler frequency offset value is When the value is greater than the second Doppler frequency offset threshold value, it is judged that it is in a high speed state.
进一步地，所述处理器具体用于在接收到的驻留小区的系统消息中携带有飞行标识且检测到的邻区包含在所述飞行邻区列表中时，判断自身处于飞行状态。Further, the processor is specifically configured to determine that the processor is in a flying state when the received system message of the camping cell carries a flight identifier and the detected neighbor cells are included in the flight neighbor cell list.
进一步地，所述处理器具体用于将携带有飞行标识的小区设置为重选优先级最高的小区。Further, the processor is specifically configured to set the cell carrying the flight identification as the cell with the highest reselection priority.
进一步地，所述处理器具体用于在自身处于飞行状态时，按照所有携带有飞行标识的小区中速度标识与自身的运动速度状态的接近程度确定小区的重选优先级，将最接近的小区设置为重选优先级最高的小区；在自身处于非飞行状态时，按照所有不携带有飞行标识的小区中速度标识与自身的运动速度状态的接近程度确定小区的重选优先级，将最接近的小区设置为重选优先级最高的小区。Further, the processor is specifically configured to determine the reselection priority of the cell according to the proximity of the speed identification in all the cells carrying the flight identification to its own motion speed state, and assign the closest cell to the Set to the cell with the highest reselection priority; when it is in the non-flying state, determine the reselection priority of the cell according to the proximity of the speed identification in all the cells that do not carry the flying identification to its own motion speed state, and the closest The cell is set to the cell with the highest reselection priority.
本发明实施例还提供了一种网络侧设备，包括处理器和收发器，The embodiment of the present invention also provides a network side device, including a processor and a transceiver,
所述收发器用于向终端发送系统消息，所述系统消息中携带有以下参数中的至少一种：The transceiver is used to send a system message to the terminal, where the system message carries at least one of the following parameters:
小区或波束的速度标识，所述速度标识用以标识小区或波束是为对应速度的用户提供服务；The speed identification of the cell or beam, the speed identification is used to identify that the cell or beam provides services for users of the corresponding speed;
小区或波束的飞行标识，所述飞行标识用以标识小区或波束是为飞行终端提供服务；The flight identification of the cell or beam, the flight identification is used to identify that the cell or beam provides services for the flight terminal;
飞行邻区列表；List of flight neighborhoods;
多普勒频偏的门限值。Threshold value for Doppler frequency offset.
本发明实施例还提供了一种网络单元，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序；所述处理器执行所述程序时实现如上所述的小区重选方法。An embodiment of the present invention further provides a network unit, including a memory, a processor, and a computer program stored on the memory and running on the processor; the processor implements the above when executing the program cell reselection method.
本发明实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如上所述的小区重选方法中的步骤。Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, implements the steps in the above-mentioned cell reselection method.
本发明的实施例具有以下有益效果：Embodiments of the present invention have the following beneficial effects:
上述方案中，终端判断自身的运动状态，其中，运动状态包括高度信息和/或速度信息，终端在判断自身的运动状态后，根据自身的运动状态确定不同类型小区的重选优先级，这样可以实现不同运动状态的终端重选到最适宜驻留的小区。In the above solution, the terminal judges its own motion state, wherein the motion state includes height information and/or speed information. After judging its own motion state, the terminal determines the reselection priorities of different types of cells according to its own motion state. The terminals in different motion states can be reselected to the most suitable cell to camp on.
附图说明Description of drawings
图1为本发明实施例应用于终端的小区重传方法的流程示意图；FIG. 1 is a schematic flowchart of a cell retransmission method applied to a terminal according to an embodiment of the present invention;
图2为本发明实施例应用于网络侧设备的小区重传方法的流程示意图；2 is a schematic flowchart of a cell retransmission method applied to a network side device according to an embodiment of the present invention;
图3为本发明实施例终端的结构示意图；3 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
图4为本发明实施例网络侧设备的结构示意图。FIG. 4 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
具体实施方式Detailed ways
为使本发明的实施例要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given in conjunction with the accompanying drawings and specific embodiments.
本发明的实施例提供一种小区重选方法、网络侧设备及终端，能够使得终端重选到最合适的目标小区。Embodiments of the present invention provide a cell reselection method, network side device and terminal, which can enable the terminal to reselect to the most suitable target cell.
本发明实施例提供一种小区重选方法，应用于终端，如图1所示，所述方法包括：An embodiment of the present invention provides a cell reselection method, which is applied to a terminal. As shown in FIG. 1 , the method includes:
步骤101：判断自身的运动状态，所述运动状态包括高度信息和/或速度信息，从而区别出终端位于高速铁路、终端处于中低速、终端为飞行无人机等等；Step 101: Judging its own motion state, the motion state includes altitude information and/or speed information, thereby distinguishing that the terminal is located on a high-speed railway, the terminal is at medium and low speeds, the terminal is a flying drone, etc.;
步骤102：根据自身的运动状态确定不同类型小区的重选优先级，这样可以保证高铁终端驻留到高铁小区，无人机终端驻留到无人机小区。Step 102: Determine the reselection priorities of different types of cells according to their own motion status, so as to ensure that the high-speed rail terminal resides in the high-speed rail cell and the drone terminal resides in the drone cell.
本实施例中，终端判断自身的运动状态，其中，运动状态包括高度信息和/或速度信息，终端在判断自身的运动状态后，根据自身的运动状态确定不同类型小区的重选优先级，这样可以实现不同运动状态的终端重选到最适宜驻留的小区。In this embodiment, the terminal determines its own motion state, where the motion state includes height information and/or speed information. After judging its own motion state, the terminal determines the reselection priorities of different types of cells according to its own motion state, so that Terminals in different motion states can be reselected to the most suitable cell to camp on.
进一步地，所述方法还包括：Further, the method also includes:
接收网络侧设备下发的系统消息，所述系统消息中携带有以下参数中的至少一种：Receive a system message sent by a network-side device, where the system message carries at least one of the following parameters:
小区或波束的速度标识，所述速度标识用以标识小区或波束是为对应速度的用户提供服务；The speed identification of the cell or beam, the speed identification is used to identify that the cell or beam provides services for users of the corresponding speed;
小区或波束的飞行标识，所述飞行标识用以标识小区或波束是为飞行终端提供服务；The flight identification of the cell or beam, the flight identification is used to identify that the cell or beam provides services for the flight terminal;
飞行邻区列表；List of flight neighborhoods;
多普勒频偏的门限值。Threshold value for Doppler frequency offset.
进一步地，所述判断自身的运动状态包括：Further, the motion state of the judgment itself includes:
根据所述多普勒频偏的门限值判断自身的运动速度状态。According to the threshold value of the Doppler frequency offset, determine its own motion speed state.
进一步地，所述根据自身的运动状态确定不同类型小区的重选优先级包括：Further, determining the reselection priorities of different types of cells according to their own motion state includes:
将速度标识与自身的运动速度状态匹配的小区设置为重选优先级最高的小区。The cell whose speed identification matches its own motion speed state is set as the cell with the highest reselection priority.
进一步地，所述门限值包括第一多普勒频偏门限值和第二多普勒频偏门限值，所述第一多普勒频偏门限值小于所述第二多普勒频偏门限值，所述根据所述多普勒频偏的门限值判断自身的运动速度状态包括：Further, the threshold value includes a first Doppler frequency offset threshold value and a second Doppler frequency offset threshold value, and the first Doppler frequency offset threshold value is smaller than the second Doppler frequency offset threshold value. The threshold value of the Doppler frequency offset, and the judgment of its own motion speed state according to the threshold value of the Doppler frequency offset includes:
计算自身的多普勒频偏值；Calculate its own Doppler frequency offset value;
在计算的多普勒频偏值小于所述第一多普勒频偏门限值时，判断自身属于低速状态；在计算的多普勒频偏值小于所述第二多普勒频偏门限值，大于所述第一多普勒频偏门限值时，判断自身处于中速状态；在计算的多普勒频偏值大于所述第二多普勒频偏门限值时，判断自身处于高速状态。When the calculated Doppler frequency offset value is less than the first Doppler frequency offset threshold value, it is judged that it belongs to the low-speed state; when the calculated Doppler frequency offset value is less than the second Doppler frequency offset threshold When the calculated Doppler frequency offset value is greater than the second Doppler frequency offset threshold value, it is judged that it is in a medium-speed state. itself at high speed.
进一步地，所述判断自身的运动状态包括：Further, the motion state of the judgment itself includes:
在接收到的驻留小区的系统消息中携带有飞行标识且检测到的邻区包含在所述飞行邻区列表中时，判断自身处于飞行状态。When the received system message of the camping cell carries the flight identifier and the detected neighbor cells are included in the flight neighbor cell list, it is determined that it is in a flight state.
进一步地，所述根据自身的运动状态确定不同类型小区的重选优先级包括：Further, determining the reselection priorities of different types of cells according to their own motion state includes:
将携带有飞行标识的小区设置为重选优先级最高的小区。Set the cell carrying the flight ID as the cell with the highest reselection priority.
进一步地，所述根据自身的运动状态确定不同类型小区的重选优先级包括：Further, determining the reselection priorities of different types of cells according to their own motion state includes:
在自身处于飞行状态时，按照所有携带有飞行标识的小区中速度标识与自身的运动速度状态的接近程度确定小区的重选优先级，将最接近的小区设置为重选优先级最高的小区；When it is in the flying state, the reselection priority of the cell is determined according to the proximity of the speed identification in all the cells carrying the flying identification to its own motion speed state, and the closest cell is set as the cell with the highest reselection priority;
在自身处于非飞行状态时，按照所有不携带有飞行标识的小区中速度标识与自身的运动速度状态的接近程度确定小区的重选优先级，将最接近的小区设置为重选优先级最高的小区。When it is in the non-flying state, determine the reselection priority of the cell according to the proximity of the speed identification in all the cells that do not carry the flying identification to its own motion speed state, and set the closest cell as the one with the highest reselection priority. community.
本发明实施例还提供了一种小区重选方法，应用于网络侧设备，如图2所示，所述方法包括：An embodiment of the present invention further provides a cell reselection method, which is applied to a network side device. As shown in FIG. 2 , the method includes:
步骤201：向终端发送系统消息，所述系统消息中携带有以下参数中的至少一种：Step 201: Send a system message to the terminal, where the system message carries at least one of the following parameters:
小区或波束的速度标识，所述速度标识用以标识小区或波束是为对应速度的用户提供服务；The speed identification of the cell or beam, the speed identification is used to identify that the cell or beam provides services for users of the corresponding speed;
小区或波束的飞行标识，所述飞行标识用以标识小区或波束是为飞行终端提供服务；The flight identification of the cell or beam, the flight identification is used to identify that the cell or beam provides services for the flight terminal;
飞行邻区列表；List of flight neighborhoods;
多普勒频偏的门限值。Threshold value for Doppler frequency offset.
本实施例中，网络侧设备在向终端发送的系统消息中携带有辅助终端进行运动状态判断的参数，可以很好地帮助终端判断自身的运动状态。In this embodiment, the system message sent by the network side device to the terminal carries parameters to assist the terminal in judging the motion state, which can well help the terminal to judge its own motion state.
本实施例中，在下发给终端的小区系统消息中增加速度标识，那么终端在进行小区选择时，可根据自身移动速度和小区系统消息的速度标识来调整对应的小区的重选优先级。In this embodiment, a speed identifier is added to the cell system message delivered to the terminal, so that the terminal can adjust the reselection priority of the corresponding cell according to its own moving speed and the speed identifier of the cell system message when selecting a cell.
本实施例中，还可以在下发给终端的小区系统消息中增加新的门限：多普勒频偏的门限，这样终端根据自己计算的多普勒频偏和系统消息的门限进行比较，确定终端的移动速度。In this embodiment, a new threshold may also be added to the cell system message sent to the terminal: the threshold of the Doppler frequency offset, so that the terminal compares the Doppler frequency offset calculated by itself with the threshold of the system message to determine the terminal movement speed.
本实施例中，还可以在下发给终端的小区系统消息中增加飞行标识，那么终端在进行小区选择时，可根据自身是否飞行和小区系统消息的飞行标识来调整对应的小区的重选优先级。In this embodiment, a flight identifier can also be added to the cell system message delivered to the terminal, then when the terminal selects a cell, it can adjust the reselection priority of the corresponding cell according to whether it is flying and the flight identifier of the cell system message. .
本实施例中，还可以在下发给终端的小区系统消息中增加新的邻区列表，这样当终端发现驻留的小区中有飞行标识，并且终端检测到的邻区包含在了这个新的邻区列表中时，终端认为自己属于飞行状态。In this embodiment, a new neighbor cell list can also be added to the cell system message delivered to the terminal, so that when the terminal finds that the cell where it resides has a flight identifier, and the neighbor cell detected by the terminal is included in the new neighbor cell When it is in the zone list, the terminal considers itself to be in the flying state.
综上所述，终端可以根据自己的运动状态(包括高度信息和速度信息)来调整不同类型小区的重选优先级。To sum up, the terminal can adjust the reselection priorities of different types of cells according to its own motion state (including height information and speed information).
下面以网络侧设备为基站为例，结合具体的实施例对本发明的小区重选方法进行进一步介绍：The cell reselection method of the present invention is further introduced in conjunction with specific embodiments by taking the network side device as a base station as an example:
网络侧：Network side:
1)基站在提供的系统消息中携带小区或者beam(波束)的特殊标识-速度标识，速度标识用来表征小区或者beam是为对应运动速度的终端提供服务的，速度标识可以包括高速标识、中速标识和低速标识，其中高速标识用于表征小区或者beam是为高速用户提供服务的，以此类推。1) The base station carries the special identification of the cell or beam (beam) in the provided system message - the speed identification. The speed identification is used to indicate that the cell or beam provides services for the terminal corresponding to the moving speed. The speed identification can include high-speed identification, medium A high-speed identifier and a low-speed identifier, wherein the high-speed identifier is used to represent the cell or the beam provides services for high-speed users, and so on.
2)基站在提供的系统消息中携带小区或者beam的特殊标识-飞行标识，飞行标识用来表征小区或者beam是为飞行终端(比如无人机)提供服务的。2) The base station carries the special identification of the cell or beam in the provided system message-the flight identification, and the flight identification is used to indicate that the cell or beam provides services for the flying terminal (such as an unmanned aerial vehicle).
3)基站在提供的系统消息中携带飞行邻区列表。该邻区列表是帮助终端判断自己是否属于飞行状态，是否需要重选到适合无人机的小区。3) The base station carries the flight neighbor list in the provided system message. The neighbor cell list is to help the terminal determine whether it belongs to the flying state and whether it needs to be reselected to a cell suitable for the UAV.
4)基站在提供的系统消息中携带一个或者多个门限信息，门限是多普勒频偏值。4) The base station carries one or more threshold information in the provided system message, and the threshold is a Doppler frequency offset value.
终端侧：Terminal side:
1-1)终端计算自己的多普勒频偏，并根据基站提供的多普勒频偏的门限来确定自己的运动速度状态。例如，基站下发了两个多普勒频偏门限fd1和fd2(fd1<fd2),当终端计算出来的多普勒频偏小于fd1时，认为自己属于低速状态；如果多普勒频偏在fd1和fd2之间时，认为自己属于中速状态；如果多普勒频偏大于fd2，认为自己属于高速状态。1-1) The terminal calculates its own Doppler frequency offset, and determines its own motion speed state according to the Doppler frequency offset threshold provided by the base station. For example, the base station sends two Doppler frequency offset thresholds fd1 and fd2 (fd1<fd2). When the Doppler frequency offset calculated by the terminal is less than fd1, it considers itself to be in a low-speed state; if the Doppler frequency offset is within When it is between fd1 and fd2, it considers itself to be in the medium-speed state; if the Doppler frequency offset is greater than fd2, it considers itself to be in the high-speed state.
1-2)当终端识别出自己的运动速度后，则可以将匹配其运动速度的小区设置为重选优先级最高的小区。具体的，终端读取小区系统消息中的速度标识，该速度标识可以表征本小区为高速状态终端提供服务或者为中速状态终端提供服务。在终端处于高速状态时，可以将携带有高速标识的小区设置为重选优先级最高的小区，以此类推。1-2) After the terminal recognizes its own motion speed, the cell that matches its motion speed can be set as the cell with the highest reselection priority. Specifically, the terminal reads the speed identifier in the cell system message, and the speed identifier can indicate that the cell provides services for the terminal in the high-speed state or provides services for the terminal in the medium-speed state. When the terminal is in a high-speed state, the cell carrying the high-speed identification can be set as the cell with the highest reselection priority, and so on.
2-1)当终端接收到驻留小区的系统消息中的用来表征小区或者beam是为飞行终端(无人机)提供服务的飞行标识时，并且其检测到的邻区包含在驻留小区系统消息中提供的飞行邻区列表中时，则终端认为自己属于飞行状态。2-1) When the terminal receives the system message of the camping cell that is used to characterize the cell or the beam is a flight identifier that provides services for the flying terminal (unmanned aerial vehicle), and the detected neighboring cell is included in the camping cell. When it is in the flight neighbor list provided in the system message, the terminal considers itself to be in the flight state.
2-2)当终端认定自己属于飞行状态后，将那些在系统消息中包含用来表征小区或者beam是为飞行终端(无人机)提供服务的飞行标识的小区的重选优先级设置为最高。2-2) When the terminal determines that it belongs to the flying state, set the reselection priority of those cells whose system messages contain the flight identification used to characterize the cell or beam to serve the flying terminal (UAV) to the highest .
3)当终端即做运动速度估计，又做了是否飞行状态的判断时，按照如下情况设置重选优先级：3) When the terminal performs both motion speed estimation and flight status judgment, the reselection priority is set according to the following conditions:
当终端属于飞行状态时，在所有含有为飞行终端(无人机)提供服务的飞行标识的小区中，选择速度标识与终端自己速度估计最接近的小区作为最高优先级，并以此类推。When the terminal is in the flying state, among all the cells containing the flight identification serving the flying terminal (UAV), the cell whose speed identification is closest to the terminal's own speed estimation is selected as the highest priority, and so on.
当终端不属于飞行状态时，在所有不含有为飞行终端(无人机)提供服务的飞行标识的小区中，选择速度标识与终端自己速度估计最接近的小区作为最高优先级，并以此类推。When the terminal does not belong to the flying state, among all the cells that do not contain the flight identification that provides services for the flying terminal (UAV), select the cell whose speed identification is closest to the terminal's own speed estimate as the highest priority, and so on. .
本发明实施例还提供了一种终端，如图3所示，包括处理器31和收发器32，An embodiment of the present invention further provides a terminal, as shown in FIG. 3, including a
所述处理器31用于判断自身的运动状态，所述运动状态包括高度信息和/或速度信息，并根据自身的运动状态确定不同类型小区的重选优先级。The
本实施例中，终端判断自身的运动状态，其中，运动状态包括高度信息和/或速度信息，终端在判断自身的运动状态后，根据自身的运动状态确定不同类型小区的重选优先级，这样可以实现不同运动状态的终端重选到最适宜驻留的小区。In this embodiment, the terminal judges its own motion state, wherein the motion state includes height information and/or speed information. After judging its own motion state, the terminal determines the reselection priorities of different types of cells according to its own motion state, so that Terminals in different motion states can be reselected to the most suitable cell to camp on.
进一步地，所述收发器32用于接收网络侧设备下发的系统消息，所述系统消息中携带有以下参数中的至少一种：Further, the
小区或波束的速度标识，所述速度标识用以标识小区或波束是为对应速度的用户提供服务；The speed identification of the cell or beam, the speed identification is used to identify that the cell or beam provides services for users of the corresponding speed;
小区或波束的飞行标识，所述飞行标识用以标识小区或波束是为飞行终端提供服务；The flight identification of the cell or beam, the flight identification is used to identify that the cell or beam provides services for the flight terminal;
飞行邻区列表；List of flight neighborhoods;
多普勒频偏的门限值。Threshold value for Doppler frequency offset.
进一步地，所述处理器31具体用于根据所述多普勒频偏的门限值判断自身的运动速度状态。Further, the
进一步地，所述处理器31具体用于将速度标识与自身的运动速度状态匹配的小区设置为重选优先级最高的小区。Further, the
进一步地，所述门限值包括第一多普勒频偏门限值和第二多普勒频偏门限值，所述第一多普勒频偏门限值小于所述第二多普勒频偏门限值，Further, the threshold value includes a first Doppler frequency offset threshold value and a second Doppler frequency offset threshold value, and the first Doppler frequency offset threshold value is smaller than the second Doppler frequency offset threshold value. The frequency deviation threshold value,
所述处理器31具体用于计算自身的多普勒频偏值；在计算的多普勒频偏值小于所述第一多普勒频偏门限值时，判断自身属于低速状态；在计算的多普勒频偏值小于所述第二多普勒频偏门限值，大于所述第一多普勒频偏门限值时，判断自身处于中速状态；在计算的多普勒频偏值大于所述第二多普勒频偏门限值时，判断自身处于高速状态。The
进一步地，所述处理器31具体用于在接收到的驻留小区的系统消息中携带有飞行标识且检测到的邻区包含在所述飞行邻区列表中时，判断自身处于飞行状态。Further, the
进一步地，所述处理器31具体用于将携带有飞行标识的小区设置为重选优先级最高的小区。Further, the
进一步地，所述处理器31具体用于在自身处于飞行状态时，按照所有携带有飞行标识的小区中速度标识与自身的运动速度状态的接近程度确定小区的重选优先级，将最接近的小区设置为重选优先级最高的小区；在自身处于非飞行状态时，按照所有不携带有飞行标识的小区中速度标识与自身的运动速度状态的接近程度确定小区的重选优先级，将最接近的小区设置为重选优先级最高的小区。Further, the
本发明实施例还提供了一种网络侧设备，如图4所示，包括处理器41和收发器42，An embodiment of the present invention also provides a network side device, as shown in FIG. 4 , including a
所述收发器42用于向终端发送系统消息，所述系统消息中携带有以下参数中的至少一种：The
小区或波束的速度标识，所述速度标识用以标识小区或波束是为对应速度的用户提供服务；The speed identification of the cell or beam, the speed identification is used to identify that the cell or beam provides services for users of the corresponding speed;
小区或波束的飞行标识，所述飞行标识用以标识小区或波束是为飞行终端提供服务；The flight identification of the cell or beam, the flight identification is used to identify that the cell or beam provides services for the flight terminal;
飞行邻区列表；List of flight neighborhoods;
多普勒频偏的门限值。Threshold value for Doppler frequency offset.
本实施例中，网络侧设备在向终端发送的系统消息中携带有辅助终端进行运动状态判断的参数，可以很好地帮助终端判断自身的运动状态。In this embodiment, the system message sent by the network side device to the terminal carries parameters to assist the terminal in judging the motion state, which can well help the terminal to judge its own motion state.
本发明实施例还提供了一种网络单元，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序；所述处理器执行所述程序时实现如上所述的小区重选方法。An embodiment of the present invention further provides a network unit, including a memory, a processor, and a computer program stored on the memory and running on the processor; the processor implements the above when executing the program cell reselection method.
其中，网络单元可以为网络侧设备或终端。Wherein, the network unit may be a network side device or a terminal.
本发明实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如上所述的小区重选方法中的步骤。Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, implements the steps in the above-mentioned cell reselection method.
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。Computer-readable media includes both persistent and non-permanent, removable and non-removable media, and storage of information may be implemented by any method or technology. Information may be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Flash Memory or other memory technology, Compact Disc Read Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media, such as modulated data signals and carrier waves.
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.
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