WO2022205202A1 - 候选小区确定方法和装置 - Google Patents

候选小区确定方法和装置 Download PDF

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Publication number
WO2022205202A1
WO2022205202A1 PCT/CN2021/084718 CN2021084718W WO2022205202A1 WO 2022205202 A1 WO2022205202 A1 WO 2022205202A1 CN 2021084718 W CN2021084718 W CN 2021084718W WO 2022205202 A1 WO2022205202 A1 WO 2022205202A1
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Prior art keywords
cell
terminal
information
candidate cell
candidate
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PCT/CN2021/084718
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English (en)
French (fr)
Inventor
熊艺
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北京小米移动软件有限公司
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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 CN202180000926.9A priority Critical patent/CN115428522A/zh
Priority to PCT/CN2021/084718 priority patent/WO2022205202A1/zh
Publication of WO2022205202A1 publication Critical patent/WO2022205202A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a method and apparatus for determining a candidate cell, an electronic device and a computer-readable storage medium.
  • the network-side device can usually instruct the terminal to handover to the target network.
  • NTN Non-Terrestrial Networks, non-terrestrial network
  • the satellite height is high and the transmission delay is large, even several orders of magnitude higher than the delay of the terrestrial network TN system. Therefore, if the traditional handover scheme is used in NTN, then There will be problems such as outdated measurement and untimely handover, which will lead to risks such as handover failure.
  • the network side device can configure one or more candidate cells (Candidate cells) for the terminal, and handover execution conditions, whereby the terminal self-evaluates whether the handover execution conditions are met, and when one or more handover execution conditions are met, The terminal can perform handover.
  • candidate cells Candidate cells
  • the terminal can perform handover.
  • the network side device In the CHO solution, the network side device generally determines the CHO candidate cell according to the measurement report reported by the terminal. However, due to the large transmission delay in the NTN network and the low immediacy of the measurement report reported by the terminal, the accuracy of the candidate cell configured by the network side device to the terminal is low, which affects the communication quality of the terminal.
  • the embodiments of the present disclosure propose a method and apparatus for determining a candidate cell to solve the technical problem in the related art.
  • a method for determining a candidate cell is proposed, which is executed by a terminal, and the method includes:
  • the auxiliary information is sent to the network-side device, where the auxiliary information is used to assist the network-side device to determine a candidate cell, and the candidate cell is a CHO candidate cell configured by the network-side device to the terminal.
  • a method for determining a candidate cell is proposed, which is executed by a network side device, and the method includes:
  • a candidate cell is determined based on the auxiliary information, where the candidate cell is a CHO candidate cell configured by the network side device to the terminal.
  • an apparatus for determining a candidate cell which is applied to a terminal, and the method includes:
  • the auxiliary information sending module is configured to send auxiliary information to the network-side device, where the auxiliary information is used to assist the network-side device to determine a candidate cell, and the candidate cell is a CHO candidate cell configured by the network-side device to the terminal.
  • an apparatus for determining a candidate cell which is applied to a network side device, and the method includes:
  • an auxiliary information receiving module configured to receive auxiliary information sent by the terminal
  • the candidate cell determination module is configured to determine a candidate cell based on the auxiliary information, where the candidate cell is a CHO candidate cell configured by the network side device to the terminal.
  • an electronic device including:
  • memory for storing processor-executable instructions
  • the processor is configured to implement the above-mentioned method for determining a candidate cell.
  • 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 method for determining a candidate cell.
  • the terminal may determine assistance information that assists the network side device to determine the candidate cell, and send the assistance information to the network side device. Therefore, the network side device can refer to the auxiliary information to determine the candidate cell. Compared with the network side device directly determining the candidate cell by itself, the accuracy of the determined candidate cell can be improved, the waste of resources can be avoided, and the communication quality of the terminal can be guaranteed.
  • FIG. 1 is a schematic flowchart of a method for determining a candidate cell according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic flowchart of another method for determining a candidate cell according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic flowchart of another method for determining a candidate cell according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic block diagram of a method for determining a candidate cell according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic block diagram of another method for determining a candidate cell according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of an application scenario according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic block diagram of an apparatus for candidate cell determination according to an embodiment of the present disclosure.
  • NTN refers to a network that provides wireless resources to terminals through equipment such as satellites rather than ground base stations.
  • the CHO scheme can be used to realize the cell handover of the terminal.
  • the network side device may configure one or more candidate cells for the terminal, and handover execution conditions corresponding to the candidate cells.
  • the terminal can evaluate whether the handover execution condition is satisfied, and if the handover execution condition is satisfied, handover to the candidate cell corresponding to the handover execution condition.
  • the handover execution conditions corresponding to different candidate cells may be the same or different.
  • the network side device may be a device in an access network, or may also be a device in a core network, which is not limited in this embodiment.
  • the selection of the existing CHO candidate target cells is configured according to the network implementation, but because the near-far effect is not obvious in the NTN network, that is, the measurement results of the cell edge and the cell center are not very different, and the propagation delay in the NTN network will lead to the measurement results. Outdated and inaccurate measurements.
  • the network cannot configure a suitable CHO candidate target cell based on the measurement report.
  • RAN2 considering the privacy and security of the UE, RAN2 has not yet agreed to the UE to report its own location information to the network. Since the network cannot know the location of the UE, it cannot know which neighboring cells can provide coverage for the UE in the future. Therefore, the network configures candidate targets.
  • the cell set may include cells that will not provide coverage for the UE in the future.
  • the network side device can usually determine the candidate cell according to the measurement report reported by the terminal, for example, the neighbor cell with better signal quality in the measurement report can be used as the candidate cell.
  • this method may still have the following problems: (1) The near-far effect is not obvious in the NTN network, that is, the signal quality of the terminal at the center of the cell (for example, the RSRP of the reference signal, the received quality of the reference signal, RSRQ, etc.) The difference is not large, so the network side equipment cannot determine the position of the terminal in the current serving cell according to the measurement report of the terminal; (2) The transmission delay in the NTN network is large, which causes the measurement of the terminal to be outdated, so the measurement report is inaccurate; ( 3) The satellites in the NTN are in a moving state, but in order to protect the privacy and security of users, the network side equipment cannot obtain the specific location of the terminal, so the network side equipment cannot predict which cells of the moving satellites can cover the terminal.
  • the determined candidate cell may be inaccurate.
  • the determined candidate cell includes a cell that is not suitable for terminal access, resulting in resource waste; or the candidate cell does not include the cell most suitable for the terminal to access, thereby affecting the communication quality of the terminal.
  • the embodiments of the present disclosure propose a method for determining a candidate cell, so as to improve the accuracy of the candidate cell determined by the network side device.
  • FIG. 1 is a schematic flowchart of a method for determining a candidate cell according to an embodiment of the present disclosure.
  • the method for determining a candidate cell shown in this embodiment may be applicable to terminals, and the terminals include but are not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the terminal may communicate with a network side device as a user equipment.
  • the network side device may be a network side device to which the method for determining a candidate cell described in any subsequent embodiment is applicable.
  • the method for determining a candidate cell, executed by a terminal may include the following steps:
  • step S101 auxiliary information is sent to the network side device.
  • the auxiliary information is used to assist the network side device to determine a candidate cell, and the candidate cell is a CHO candidate cell configured by the network side device to the terminal.
  • the terminal may send assistance information to the network side device to assist the network side device in determining the candidate cell.
  • a method for a terminal to send auxiliary information to a network side device includes at least one of the following: sending candidate cell recommendation information to the network side device according to a preset period; The network side device sends candidate cell recommendation information; sends a measurement report to the network side device, and the measurement report carries the candidate cell recommendation information.
  • the preset measurement events may be A1-A5 events, or may also be other measurement events, which are not limited in this embodiment.
  • the network-side device may receive auxiliary information sent by the terminal, and determine candidate cells based on the auxiliary information.
  • the auxiliary information may indicate recommendation information of at least one neighboring cell, where the recommendation information may be at least one of the following: recommending as a candidate cell, not recommending as a candidate cell, and recommending a recommendation degree of a candidate cell.
  • the network side device may determine whether to use the neighboring cell as the recommended cell according to the auxiliary information, that is, the recommendation information of at least one neighboring cell. For example, if a neighboring cell is recommended as a candidate cell, the network-side device may determine it as a candidate cell, or the network-side device may also preferentially determine it as a candidate cell; if a neighboring cell is not recommended as a candidate cell cell, the network side device can exclude the neighbor cell when determining the candidate cell, that is, not determine the neighbor cell as a candidate cell, or the network side device can also determine whether to use the neighbor cell as a candidate cell according to the recommendation degree.
  • the auxiliary information that is, the recommendation information of at least one neighboring cell. For example, if a neighboring cell is recommended as a candidate cell, the network-side device may determine it as a candidate cell, or the network-side device may also preferentially determine it as a candidate cell; if a neighboring cell is not recommended as a candidate cell cell, the network side device can
  • the terminal can determine the auxiliary information to assist the network-side device in determining the candidate cell, and send the auxiliary information to the network-side device. Therefore, the network side device can refer to the auxiliary information to determine the candidate cell. Compared with the network side device directly determining the candidate cell by itself, the accuracy of the determined candidate cell can be improved, the waste of resources can be avoided, and the communication quality of the terminal can be guaranteed.
  • the auxiliary information may include one or more of the following information:
  • the identity of at least one neighbor cell that is a candidate cell is not recommended.
  • the identifier of the neighboring cell may be at least one of a cell ID and a satellite identifier.
  • the terminal may report the identity of at least one neighbor cell to the network side device, and recommend the neighbor cell to the network side device as a candidate cell.
  • the terminal may report only one identity, such as the identity of the neighboring cell that is most suitable for the terminal to access; or, the terminal may also report multiple identities, such as a set of identities, for example, the multiple identities may be The identifiers of multiple neighboring cells that the terminal can currently access or can access in the future.
  • the terminal can determine the neighboring cells that can be used as candidate cells. Since the terminal has a comprehensive understanding of its own information, the accuracy of the neighboring cells recommended by the terminal is high, so that the accuracy of the network side device in determining the candidate cells can be improved, ensuring that Terminal communication quality.
  • the terminal may report the identity of at least one neighbor cell to the network side device, and the network side device is not recommended to use the cell as a candidate cell, that is, the network side device is instructed not to use the neighbor cell as a candidate cell.
  • the terminal may report only one identifier, indicating a neighboring cell that the terminal is not suitable for accessing; or, the terminal may also report multiple identifiers, such as a set of identifiers, such as the multiple identifiers that the terminal cannot currently access. The identifiers of multiple neighboring cells that are accessed and cannot be accessed in the future.
  • the terminal can determine the adjacent cells that cannot be used as candidate cells. Since the terminal has a more comprehensive understanding of its own information, the adjacent cells that the terminal does not recommend are usually the adjacent cells that cannot be accessed or cannot be accessed for a long time.
  • the network side device determines the accuracy of the candidate cell to avoid wasting resources.
  • the terminal may determine the auxiliary information according to the indication of the network side device. For example, if the network side device instructs the terminal to report the neighbor cell recommended as the candidate cell, the terminal may carry the identifier of at least one neighbor cell recommended as the candidate cell in the auxiliary information; if the network side device instructs the terminal to report the neighbor cell that is not recommended as the candidate cell adjacent cells, the terminal may carry the identification of at least one adjacent cell that is not recommended as a candidate cell in the auxiliary information.
  • the terminal can decide by itself which neighbor cell recommendation information needs to be determined.
  • the recommendation information may be separately determined for each neighboring cell of the current serving cell; or some neighboring cells may be screened out from the neighboring cells of the current serving cell, and the recommendation information may be determined separately. Therefore, the terminal can determine the auxiliary information according to the recommendation information.
  • the terminal can carry the identification of all the at least one adjacent cell recommended as a candidate cell in the auxiliary information; The identifier is carried in the auxiliary information; or both can be carried in the auxiliary information, and the identifiers are used to distinguish which cells are recommended as candidate cells and which are not recommended as candidate cells.
  • the terminal may determine the recommendation information of the neighboring cell according to the indication of the network side device.
  • the network-side device may carry a designated identifier in the measurement configuration to indicate one or more designated neighboring cells, for example, it may be carried in an RRCReconfiguration message.
  • the terminal may receive a designated identifier sent by the network-side device, where the designated identifier sent by the network-side device may be the identifiers of one or more neighboring cells designated by the network-side device, and the terminal may determine one or more neighbor cells according to the designated identifier. multiple neighbor cells, and determine the recommendation information of each neighbor cell and carry it in the auxiliary information. Therefore, the auxiliary information may include at least one of the following items: whether the neighbor cell indicated by the designated identifier is recommended as a candidate cell, and the recommendation degree of the neighbor cell indicated by the designated identifier being recommended as the candidate cell.
  • the network side device can send the identification of the neighboring cell that is difficult to evaluate whether it is suitable as a candidate cell to the terminal, so that the terminal can evaluate the neighboring cell and determine the recommendation information of the neighboring cell. Therefore, the network side device can more accurately determine the candidate cell, avoid resource waste, and ensure the communication quality of the terminal.
  • the neighbor cell recommendation information can be determined according to the reference information of the neighbor cell. An embodiment is described below with reference to FIG. 2 .
  • FIG. 2 is a schematic flowchart of another method for determining a candidate cell according to an embodiment of the present disclosure. The method is executed by a terminal. As shown in FIG. 2 , the method further includes:
  • Step S201 Determine at least one of the following reference information: first time information that a neighboring cell can provide services for the terminal, second time information that the current serving cell of the terminal can provide services to the terminal, and information corresponding to neighboring cells. distance information between the first reference point and the terminal, a first distance threshold used to indicate the coverage of neighboring cells, distance information between the second reference point corresponding to the current serving cell of the terminal and the terminal, A second distance threshold for indicating the coverage of the serving cell.
  • the terminal may obtain the reference information from the network side device, for example, the network side device may broadcast or send it through a dedicated signal. order to send the reference information, so that the terminal can receive the reference information; in another example, the reference information can be preset in the terminal.
  • the terminal can be predicted by the cell change information and the terminal position.
  • the cell change information may include cell coverage change information, or position change information of a reference point in the cell, and the cell change information may be obtained by the terminal from the ephemeris, or may be obtained from a network side device.
  • the terminal can determine the coverage of the cell according to the ephemeris or the indication of the network side device, and at the same time combine the location of the terminal, so that the terminal can predict the above-mentioned first time information and second time information.
  • the terminal can determine the location change information of the reference points in the cell (including the first reference point corresponding to the neighboring cell or the second reference point corresponding to the serving cell) according to the ephemeris or the indication of the network side device, and at the same time Combined with the location of the terminal, the above distance information is predicted.
  • the location of the terminal may be fixed or changeable.
  • the first reference point is a position in a neighboring cell, and the position varies with the coverage of the neighboring cell.
  • the first reference point may be a cell center of the neighboring cell.
  • the first distance threshold may indicate the coverage area of the neighboring cell, for example, may be the farthest distance from the first reference point within the coverage area of the neighboring cell. If the first reference point is the cell center of the neighboring cell, the first distance threshold may be the cell radius of the neighboring cell.
  • the second reference point is a position in the serving cell, and the position varies with the coverage of the serving cell.
  • the first reference point may be a cell center of the serving cell.
  • the second distance threshold may indicate the coverage of the serving cell, for example, may be the farthest distance from the second reference point within the coverage of the serving cell. If the second reference point is the cell center of the serving cell, the second distance may be the cell radius of the serving cell.
  • the first time information and the second time information may be at least one of a start time, an end time, and a duration.
  • the first time information and the second time information may be directly determined by the terminal, for example, the terminal may record the cells that have provided services, and then determine the first time information and the second time according to historical records information.
  • the terminal can determine the first time information according to the current position of the satellite corresponding to the neighboring cell, the time information of the service that the satellite can provide when the satellite is at the current position in the historical record, and the position information of the terminal; or, the terminal can determine the first time information according to The second time information is determined by the current position of the satellite corresponding to the serving cell, the time information of the service that can be provided when the satellite is at the current position in the historical record, and the position information of the terminal.
  • the first time information is the time information that the terminal is within the coverage of a neighboring cell; the second time information is the time information that the terminal is within the coverage of the serving cell.
  • the first time information may be determined based on the coverage change information of the neighboring cell, and the second time information may be determined based on the coverage change information of the serving cell.
  • the terminal may determine whether the terminal is within the coverage of the cell according to its own location and the coverage change information of the cell (which may be a neighboring cell or a serving cell).
  • the coverage change information of the cell may be indicated in various ways.
  • the coverage change information may include location change information of a reference point; or, the coverage change information may include the location change information of one or more points in the cell.
  • Location change information Exemplary descriptions are given below.
  • the coverage change information may include location change information of the reference point.
  • the coverage change information of the neighboring cell may include location change information of the first reference point, and the coverage change information of the serving cell may include location change information of the second reference point.
  • the position change information of the first reference point and/or the second reference point may be the current position coordinates, moving direction, and moving speed of the first reference point and/or the second reference point, so that the terminal can predict Estimate the position coordinates of the first reference point and/or the second reference point in the future.
  • the terminal can predict the distance change between the terminal and the first reference point according to the position change information of the first reference point.
  • the neighboring cell can provide services; when the distance is not less than the first distance
  • the threshold value is exceeded, neighboring cells cannot provide services.
  • the terminal may determine that the first time information is time information that the distance between the terminal and the first reference point is less than the first distance threshold, for example, the distance may be less than the At least one of the start and end time and duration of the first distance threshold.
  • the terminal can predict the distance change between the terminal and the second reference point according to the position change information of the second reference point.
  • the serving cell can provide services; when the distance is not less than the second distance
  • the serving cell cannot provide services.
  • the terminal may determine that the second time information is time information that the distance between the terminal and the second reference point is less than the second distance threshold, for example, the distance may be less than the At least one of the start and end time and the duration of the second distance threshold.
  • the coverage change information may include location change information of multiple points in a cell (which may be a neighboring cell or a serving cell), for example, may be location change information of multiple points at the edge of the cell.
  • the coverage change information of the neighboring cell may include location change information of multiple points in the neighboring cell
  • the coverage change information of the serving cell may include location change information of multiple points in the serving cell.
  • the location change information of multiple points in the cell may include the current location coordinates, moving direction, and moving speed of the multiple points, so that the terminal can estimate the location coordinates of the multiple points in the future, thereby Determine the cell coverage at future moments.
  • the terminal may estimate the coverage of the adjacent cell according to multiple points in the adjacent cell, and determine the first time information that the terminal is within the coverage of the adjacent cell. Based on the same method, the terminal can estimate the coverage of the serving cell according to multiple points in the serving cell, and determine the second time information that the terminal is within the coverage of the serving cell.
  • the first reference point may be a satellite corresponding to a neighboring cell
  • the second reference point may be a satellite corresponding to a serving cell
  • the satellite moves according to a specific motion trajectory.
  • the terminal can determine the trajectory of the satellite through the ephemeris, or the terminal can also obtain the trajectory of the satellite from the network side device.
  • the first distance threshold may indicate the coverage of a neighboring cell, for example, it may be the farthest distance between the coverage of the neighboring cell and the corresponding satellite of the neighboring cell; in one embodiment, the second distance threshold may indicate the service
  • the cell coverage for example, may be the farthest distance between the serving cell and the satellite corresponding to the serving cell.
  • the adjacent cell when the distance between the terminal and the satellite corresponding to the adjacent cell is less than the first distance threshold, the adjacent cell can provide services; when the distance between the terminal and the satellite corresponding to the adjacent cell is not less than the first distance threshold, the adjacent cell cannot provide services. service; when the distance between the terminal and the satellite corresponding to the serving cell is less than the second distance threshold, the serving cell can provide the service; when the distance between the terminal and the satellite corresponding to the serving cell is not less than the second distance threshold, the serving cell cannot provide the service .
  • the first time information may be determined based on the distance between the satellite corresponding to the neighboring cell and the terminal
  • the second time information may be determined based on the distance between the satellite corresponding to the serving cell and the terminal Sure.
  • the terminal can predict the distance information between the terminal and the satellite corresponding to the neighboring cell and the distance information between the terminal and the satellite corresponding to the serving cell, respectively, according to its own position and the motion trajectory of the satellite.
  • the terminal may determine: the first time information is the time information that the distance between the terminal and the satellite corresponding to the neighboring cell is less than the first distance threshold; the second time information is the time information between the terminal and the serving cell Corresponds to time information that the distance between satellites is less than the second threshold.
  • Step S202 Determine recommendation information of a neighbor cell according to the at least one item of reference information, where the recommendation information includes at least one of the following: whether the neighbor cell is recommended as a candidate cell, and a recommendation degree of the neighbor cell as a candidate cell.
  • the terminal may determine the recommendation information of the neighbor cell according to at least one item of reference information in step S201.
  • the terminal may determine the recommendation information of the neighboring cell according to the first time information and the second time information. In response to the first time information and the second time information not having an intersection, it is determined that the neighboring cell is not recommended as a candidate cell; or, in response to the first time information and the second time information having an intersection, It is determined to recommend the neighbor cell as a candidate cell.
  • the first time information may include the start time when the neighboring cell can provide services for the terminal, and the second time information may include the end time when the serving cell can provide services for the terminal.
  • the terminal can handover from the serving cell to the neighbor cell. Therefore, the neighboring cell is suitable for terminal access, that is, the terminal can recommend the neighboring cell as a candidate cell.
  • the terminal if there is no intersection between the first time information and the second time information, the terminal cannot directly switch from the serving cell to the neighboring cell. Therefore, the neighboring cell is not suitable for terminal access, that is, the terminal may not recommend the neighboring cell as a candidate cell.
  • the terminal may determine the recommendation information of the neighboring cell according to the first time information. For example, the terminal may determine, based on the first time information, a first duration for which the neighboring cell can provide services for the terminal; in response to the first duration not being greater than a preset duration threshold, it is determined that the neighboring cell is not recommended. The cell is used as a candidate cell; or, in response to the first duration being greater than a preset duration threshold, it is determined to recommend the neighboring cell as a candidate cell.
  • the duration threshold may be preset in the terminal, for example, it may be specified in a protocol; or it may be configured by the network-side device to the terminal, for example, the network-side device may be configured in the measurement configuration, for example, it may be carried in the RRCReconfiguration message middle.
  • the first time information may include the first duration that the neighboring cell can provide services for the terminal, and the terminal may directly obtain the first duration; or, the first time information may include the starting time when the neighboring cells can provide services for the terminal start time and end time, the terminal may determine the first duration according to the difference between the end time and the start time.
  • the terminal may preset a duration threshold. If the first duration is not greater than the preset duration threshold, it means that the neighboring cell can provide services for the terminal for a short period of time, and the terminal generally avoids frequent handovers in order to ensure stable communication, so the neighboring cell is not suitable for terminal access, that is, the terminal The neighboring cell may not be recommended as a candidate cell. If the first duration is greater than the preset duration threshold, it means that the neighboring cell can provide services for the terminal for a long period of time. If the terminal accesses the neighboring cell without frequent handovers, the neighboring cell is suitable for terminal access, that is, the terminal can use the neighboring cell to access the neighboring cell. A cell is recommended as a candidate cell.
  • the terminal may not need to preset the duration threshold, but directly determine the recommendation information of the neighboring cell according to the first duration. For example, the terminal may determine, based on the first duration, a recommendation degree recommended by the neighboring cell as a candidate cell; wherein the recommendation degree is positively correlated with the first duration. That is to say, the longer the first duration, the higher the recommendation degree. It should be noted that the specific method for determining the recommendation degree and the first duration may be determined according to the actual situation, for example, the two may be proportional to each other, which is not limited in this embodiment.
  • the terminal may determine whether a neighboring cell is recommended as a candidate cell according to the above-mentioned first duration and whether there is an intersection between the first time information and the second time information.
  • the terminal determines to recommend the neighboring cell as a candidate cell.
  • the terminal can not only switch directly from the serving cell to the neighboring cell, but also access the neighboring cell for a long time to ensure stable communication.
  • the terminal may determine the recommendation information of the neighboring cell based on the distance information between the first reference point corresponding to the neighboring cell and the terminal and the first distance threshold used to indicate the coverage of the neighboring cell. For example, the terminal may determine the minimum distance between the first reference point and the terminal based on the distance information between the first reference point corresponding to the neighboring cell and the terminal, in response to the minimum distance not being less than For the first distance threshold, it is determined that the neighboring cell is not recommended as a candidate cell; or, in response to the minimum distance being greater than the first distance threshold, it is determined to recommend the neighboring cell as a candidate cell.
  • the minimum distance here refers to the minimum distance that may exist in the future between the first reference point and the terminal.
  • the terminal can enter the coverage of the neighboring cell, and therefore, the terminal can recommend the neighboring cell as a candidate cell.
  • the terminal cannot enter the coverage of the adjacent cell, that is, even if the adjacent cell is used as a candidate cell, the terminal will not access the adjacent cell, In order to save resources, the neighboring cell may not be recommended as a candidate cell.
  • the terminal may determine, based on the distance information between the first reference point corresponding to the adjacent cell and the terminal, the recommendation information of the adjacent cell, the first distance threshold for indicating the coverage of the adjacent cell, the terminal The distance information between the second reference point corresponding to the current serving cell and the terminal and the second distance threshold used to indicate the coverage of the serving cell are used to determine the recommendation information of the neighboring cell.
  • the terminal may determine the time information that the distance between the second reference point corresponding to the current serving cell of the terminal and the terminal is smaller than the second distance threshold, if there is at least one moment, the first reference point corresponding to the adjacent cell If the distance between the point and the terminal is also less than the first distance threshold, it means that the terminal can be handed over from the serving cell to the neighboring cell, therefore, the neighboring cell is suitable for terminal access, that is, the terminal can recommend the neighboring cell as a candidate cell .
  • the terminal may determine the recommendation information of the neighbor cell based on the distance information between the first reference point corresponding to the neighbor cell and the terminal. For example, the terminal may determine the minimum distance between the first reference point and the terminal based on the distance information between the first reference point corresponding to the neighboring cell and the terminal, and then determine the minimum distance based on the minimum distance.
  • the neighbor cell is recommended as a recommendation degree of a candidate cell; the recommendation degree is negatively correlated with the minimum distance.
  • the recommendation degree may be inversely proportional to the minimum distance. Since the coverage sizes of different neighboring cells are quite different, in order to unify the measurement standard of the recommendation degree, the recommendation degree may be determined as the ratio of the first distance threshold to the minimum distance.
  • the smaller the minimum distance between the first reference point corresponding to the neighboring cell and the terminal the higher the recommendation degree; the larger the minimum distance, the lower the recommendation degree.
  • the coverage area of a neighboring cell as a circle and the first reference point as the center of the circle as an example, the smaller the minimum distance, the closer the terminal is to the center of the circle within the coverage of the cell, and the longer the neighboring cell can provide services for the terminal. Therefore, This adjacent cell is more suitable for terminal access and has a high degree of recommendation; on the contrary, the smaller the minimum distance is, the closer the terminal is to the edge within the coverage of the cell, and the shorter the time that the adjacent cell can provide services for the terminal. It is not very suitable for terminal access, and the recommendation is low.
  • the terminal when the terminal determines the recommendation degree based on the above-mentioned first duration and/or the above-mentioned minimum distance, the terminal may first determine whether a neighboring cell is recommended as a candidate cell according to the method in the foregoing embodiment, and if the neighboring cell is not recommended as a candidate cell If the neighboring cell is recommended as a candidate cell, the recommendation degree may be determined based on at least one of the first duration and the minimum distance.
  • FIG. 3 is a schematic flowchart of another method for determining a candidate cell according to an embodiment of the present disclosure.
  • the method for determining a candidate cell shown in this embodiment may be executed by a network side device.
  • the network-side device may be a device in the access network, or may be a device in the core network.
  • the network-side device may communicate with a terminal serving as user equipment, and the terminal includes but is not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the terminal may be a terminal to which the method for determining a candidate cell described in any of the foregoing embodiments is applicable.
  • the method for determining a candidate cell may include the following steps:
  • step S301 the auxiliary information sent by the terminal is received.
  • step S302 a candidate cell is determined based on the assistance information.
  • the candidate cell is a CHO candidate cell configured by the network side device to the terminal.
  • the terminal may send auxiliary information to the network-side device, so that the network-side device may determine candidate cells based on the auxiliary information.
  • the terminal can determine auxiliary information that can be used to assist the network-side device in determining candidate cells, and send the auxiliary information to the network-side device. Therefore, the network side device can refer to the auxiliary information to determine the candidate cell. Compared with the network side device directly determining the candidate cell by itself, the accuracy of the determined candidate cell can be improved, the waste of resources can be avoided, and the communication quality of the terminal can be guaranteed.
  • the network-side device may also obtain recommendation information of the designated neighboring cell from the terminal. For example, the network-side device may send a designated identifier to the terminal, where the designated identifier is used to instruct the terminal to carry at least one of the following items in the auxiliary information: whether the neighbor cell indicated by the designated identifier is recommended as a candidate The cell and the neighboring cell indicated by the designated identifier are recommended as the recommendation degree of the candidate cell.
  • the terminal may determine the neighbor cell indicated by the specified identifier, and then determine the recommendation information of the neighbor cell, that is, at least one of the following: whether the neighbor cell is recommended as a candidate cell, whether the neighbor cell recommends as the recommendation degree of the candidate cell.
  • the auxiliary information sent by the terminal may indicate recommendation information of at least one neighboring cell, where the recommendation information may be at least one of the following: recommending as a candidate cell, not recommending as a candidate cell, and recommending a recommendation degree of a candidate cell .
  • the determining a candidate cell based on the assistance information includes:
  • the neighbor cell In response to the auxiliary information including the identifier of the neighbor cell recommended as the candidate cell, determine the neighbor cell as the candidate cell; or, in response to the auxiliary information including the identifier of the neighbor cell that is not recommended as the candidate cell, exclude the neighbor cell
  • the neighbor cell is determined as a candidate cell.
  • the network side device may not directly determine the neighbor cell recommended by the terminal as the candidate cell, but may increase the priority of the neighbor cell as the candidate cell, if the neighbor cell has a higher priority than other neighbor cells, Then the neighboring cell is determined as a candidate cell.
  • the specific implementation method of the network side device may be determined according to the actual situation, which is not limited in this embodiment.
  • the network side device may not directly exclude the neighbor cells not recommended by the terminal from being determined as candidate cells. For example, if the network side device determines that other neighbor cells are also not suitable as candidate cells, the neighbor cells not recommended by the terminal may still be determined as candidate cells. The cell is determined as a candidate cell.
  • the specific implementation method of the network side device may be determined according to the actual situation, which is not limited in this embodiment.
  • the network side device may also determine the candidate cell according to the recommendation degree of the candidate cell, and in response to the recommendation degree of the neighbor cell included in the auxiliary information as the candidate cell, determine the candidate cell based on the recommendation degree.
  • the network-side device may preset a recommendation degree threshold, and determine a neighboring cell whose recommendation degree is higher than the preset threshold as a candidate cell.
  • the network side device may further determine the handover execution condition corresponding to the candidate cell according to the recommendation degree.
  • the handover execution condition is used to instruct the terminal to evaluate whether the handover execution condition is satisfied, and when the handover execution condition is satisfied, switch to a candidate cell corresponding to the handover execution condition.
  • the network side device may determine the handover execution condition corresponding to the candidate cell based on the recommendation degree; wherein the handover execution condition is determined by the terminal
  • the degree of difficulty that is satisfied is inversely related to the degree of recommendation.
  • the network side device may first determine whether the terminal recommends the neighboring cell as a candidate cell according to the recommendation degree. For example, the network side and the terminal may negotiate in advance. When the recommendation degree is greater than a certain threshold (such as k), it indicates that the terminal recommends The neighbor cell is taken as a candidate cell.
  • a certain threshold such as k
  • the network side device determines the handover execution condition corresponding to the neighbor cell based on the recommendation degree. For example, the network side device may determine a handover execution condition that is relatively easy to satisfy for a neighboring cell with a high recommendation degree, and a handover execution condition that is difficult to satisfy for a neighboring cell with a low recommendation degree.
  • the probability of the terminal accessing a neighboring cell with a high degree of recommendation is higher.
  • the present disclosure also provides an embodiment of an apparatus for determining a candidate cell.
  • Fig. 4 is a schematic flowchart of an apparatus for determining a candidate cell according to an embodiment of the present disclosure.
  • the apparatus for determining a candidate cell shown in this embodiment may be applicable to a terminal, and the terminal includes but is not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the terminal may be used as user equipment to communicate with a network side device.
  • the network side device may be a network side device to which the apparatus for determining a candidate cell described in any subsequent embodiment is applicable.
  • the candidate cell determination device configured on the terminal side, may include:
  • the auxiliary information sending module 401 is configured to send auxiliary information to the network side device, the auxiliary information is used to assist the network side device to determine a candidate cell, and the candidate cell is the CHO candidate cell configured by the network side device to the terminal .
  • the auxiliary information includes one or more of the following information: an identifier of at least one neighboring cell recommended as a candidate cell; an identifier of at least one neighboring cell that is not recommended as a candidate cell.
  • the apparatus further includes:
  • the identity receiving module 402 is configured to receive the specified identity sent by the network side device; the auxiliary information includes at least one of the following: whether the neighbor cell indicated by the specified identity is recommended as a candidate cell, the specified identity indicated The neighbor cell recommended as the recommendation degree of the candidate cell.
  • the apparatus further includes:
  • the reference information determination module 403 is configured to determine at least one of the following reference information:
  • the first time information that the adjacent cell can provide the service for the terminal the second time information that the current serving cell of the terminal can provide the service for the terminal, and the relationship between the first reference point corresponding to the adjacent cell and the terminal.
  • distance information a first distance threshold used to indicate the coverage of a neighboring cell, distance information between the second reference point corresponding to the current serving cell of the terminal and the terminal, and a second distance used to indicate the coverage of the serving cell threshold;
  • the recommendation information determination module 404 is configured to determine recommendation information of a neighbor cell according to the at least one item of reference information, where the recommendation information includes at least one of the following: whether the neighbor cell is recommended as a candidate cell, and whether the neighbor cell recommends a candidate cell as a candidate cell recommendation.
  • the first time information is determined based on coverage change information of the neighboring cell
  • the second time information is determined based on coverage change information of the serving cell.
  • the first time information is time information that the distance between the terminal and the first reference point is less than the first distance threshold; the second time information is the time information between the terminal and the first reference point time information that the distance between the second reference point corresponding to the serving cell is smaller than the second threshold.
  • the recommendation information determining module 404 is specifically configured to:
  • the neighboring cell In response to the first time information and the second time information not having an intersection, it is determined that the neighboring cell is not recommended as a candidate cell; or, in response to the first time information and the second time information having an intersection, It is determined to recommend the neighbor cell as a candidate cell.
  • the recommendation information determining module 404 is further configured to:
  • the neighboring cell In response to the first duration being not greater than a preset duration threshold, it is determined that the neighboring cell is not recommended as a candidate cell; or, in response to the first duration being greater than a preset duration threshold, it is determined to recommend the neighboring cell as a candidate cell.
  • the recommendation information determining module 404 is specifically configured to:
  • a recommendation degree recommended by the neighboring cell as a candidate cell is determined; wherein the recommendation degree is positively correlated with the first duration.
  • the recommendation information determining module 404 is specifically configured to:
  • the adjacent cell In response to the minimum distance being not less than the first distance threshold, it is determined that the adjacent cell is not recommended as a candidate cell; or, in response to the minimum distance being greater than the first distance threshold, it is determined to recommend the adjacent cell as a candidate cell community.
  • the recommendation information determining module 404 is specifically configured to:
  • a recommendation degree recommended by the neighboring cell as a candidate cell is determined; the recommendation degree is negatively correlated with the minimum distance.
  • the recommendation degree is a ratio of the first distance threshold to the minimum distance.
  • FIG. 5 is a schematic flowchart of another apparatus for determining a candidate cell according to an embodiment of the present disclosure.
  • the apparatus for determining a candidate cell shown in this embodiment may be applicable to a network side device.
  • the network-side device may be a device in the access network, or may be a device in the core network.
  • the network-side device may communicate with a terminal serving as user equipment, and the terminal includes but is not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the terminal may be a terminal to which the apparatus for determining a candidate cell described in any of the foregoing embodiments is applicable.
  • Auxiliary information receiving module 501 configured to receive auxiliary information sent by the terminal
  • the candidate cell determination module 502 is configured to determine a candidate cell based on the auxiliary information, where the candidate cell is a CHO candidate cell configured by the network side device to the terminal.
  • the candidate cell determination module 502 is specifically configured to:
  • the neighbor cell In response to the auxiliary information including the identifier of the neighbor cell recommended as the candidate cell, determine the neighbor cell as the candidate cell; or, in response to the auxiliary information including the identifier of the neighbor cell that is not recommended as the candidate cell, exclude the neighbor cell
  • the neighbor cell is determined as a candidate cell.
  • the candidate cell determination module 502 is specifically configured to:
  • a candidate cell is determined based on the recommendation degree.
  • the candidate cell determination module 502 is specifically configured to:
  • a neighboring cell whose recommendation degree is higher than a preset recommendation degree threshold is determined as a candidate cell.
  • the candidate cell determination module 502 is specifically configured to:
  • a handover execution condition corresponding to the candidate cell is determined based on the recommendation degree; wherein, the difficulty that the handover execution condition is satisfied by the terminal and the recommendation degree negatively correlated.
  • the apparatus further comprises:
  • the designated identifier sending module 503 is configured to send a designated identifier to the terminal, where the designated identifier is used to instruct the terminal to carry at least one of the following items in the auxiliary information: whether the neighbor cell indicated by the designated identifier is recommended as a The candidate cell and the neighboring cell indicated by the designated identifier are recommended as the recommendation degree of the candidate cell.
  • FIG. 6 is a schematic diagram of an application scenario according to an embodiment of the present disclosure.
  • the figure includes two terminals UE1 and UE2.
  • the current serving cell of the two terminals is cell 4, which includes 6 adjacent cells, respectively For cells 1, 2, 3, 5, 6, 7.
  • the set of CHO candidate target cells configured by the network side equipment for the terminals UE1 and UE2 is ⁇ 1, 2, 3, 5, 6, 7 ⁇ . If the moving direction of the satellite is considered, Then the set of CHO candidate target cells is ⁇ 3, 5, 6, 7 ⁇ .
  • adjacent cells 5 and 6 will not provide services for UE1 in the future, and adjacent cells 3 and 5 will not provide services for UE2 in the future.
  • UE1 and UE2 need to evaluate the CHO execution conditions of adjacent cells 5 and 6 and adjacent cells 3 and 5 respectively, which also has a certain impact on the performance of the UE.
  • the coverage information of the satellite cell is also known, and the UE can judge whether the neighboring cell can provide coverage in the future according to its own location information, satellite ephemeris/cell coverage information.
  • the UE judges whether the neighboring cell can provide coverage for the UE in the future according to its own location and satellite ephemeris or cell coverage information, so as to determine whether the neighboring cell can be configured as a CHO candidate target cell, and report it as auxiliary information to
  • the network determines the valid candidate target cell set and the corresponding CHO configuration of the UE through the auxiliary information reported by the UE. This solution can effectively prevent the network from configuring invalid candidate target cells for the UE and reduce the waste of gNB resources.
  • the UE reports auxiliary information to assist the network in determining the CHO candidate target cell.
  • auxiliary information can be one or more of the following information:
  • the neighbor ID of the recommended target cell the ID of the neighbor not recommended to be configured as the candidate target cell, the indication of whether a neighbor is recommended to be configured as the candidate target cell, and the recommendation degree of a neighbor configured as the candidate target cell.
  • the assistance information may further include satellite identifiers corresponding to neighboring cells.
  • the UE may determine whether a neighbor cell is a recommended candidate target cell or its corresponding recommendation degree through the service time information or the service distance information.
  • the service time information includes: the service duration and service time range of the serving cell/neighboring cell;
  • the service distance information includes: the distance and the distance change between the UE and the reference point of the serving cell/neighboring cell.
  • the service time information satisfies the following conditions, it is a recommended candidate target cell, otherwise it is a non-recommended candidate target cell: the service time of this adjacent cell is greater than the threshold value of the service time of the candidate target cell; the service time range of this adjacent cell and service time There is an overlap between the service time ranges of the cells.
  • the service distance information satisfies the following conditions, it is a recommended candidate target cell, otherwise it is a non-recommended candidate target cell: the minimum distance between the UE and the reference point of this adjacent cell is less than the reference distance corresponding to this adjacent cell; when the UE When the distance from the reference point of the serving cell is smaller than the reference distance of the serving cell, the distance between the UE and the reference point of the neighboring cell is smaller than the reference distance corresponding to the neighboring cell.
  • the reference point may be the center of the cell, and the reference distance may be the radius of the cell.
  • the recommendation degree corresponding to the neighbor cell can be obtained according to the service duration or the ratio between the minimum distance between the UE and the reference point of the neighbor cell and the reference distance, and the recommendation degree of the unrecommended candidate target cell is 0.
  • the UE may obtain the service time information of the serving cell/neighboring cell according to its own location information and the coverage information of the serving cell/neighboring cell: To determine the time when the location of its own location enters the coverage of this neighboring cell and the time when it leaves the coverage of the serving cell/neighboring cell, the service time range is obtained; The direction and speed are used to determine the start and end times when the distance between the own position and the reference point is less than the reference distance, and the service time range is obtained.
  • the reference point may be the center of the cell, and the reference distance may be the radius of the cell.
  • the service duration can be obtained through the service time range.
  • the auxiliary information may be reported periodically, or triggered by a measurement event, and may also be included in the measurement report.
  • the UE may determine whether to report the assistance information according to the network indication.
  • the content of the auxiliary information reported by the UE may be specified by the protocol or configured by the network. For example, if the auxiliary information reported by the network instructs the UE to include: an indication of whether a neighboring cell is recommended to be configured as a candidate target cell or the recommendation degree of a neighboring cell to be configured as a candidate target cell, the network needs to indicate the ID of the neighboring cell that needs to be determined by the UE and the The satellite ID corresponding to this neighborhood.
  • the coverage information of the serving cell/neighboring cell may be obtained through ephemeris information or may be delivered to the UE through the network.
  • the network can deliver cell coverage information through broadcast or dedicated signaling.
  • the threshold value and the network indication may be configured by the network, included in the measurement configuration, and sent to the UE through an RRCReconfiguration message.
  • the threshold value can also be specified in the protocol.
  • the network configures a suitable CHO candidate target cell for the UE according to the assistance information reported by the UE.
  • the network can configure the CHO candidate target cell according to the recommended neighbor ID in the auxiliary information, and the network can preferentially configure the cell in the recommended neighbor as the candidate target cell;
  • the network may configure the CHO candidate target cell according to the non-recommended neighbor ID in the auxiliary information, and the network may exclude the non-recommended neighbor cells when configuring the candidate target cell;
  • the network may configure the candidate target cell according to the indication of whether a certain neighboring cell is recommended to be configured as the candidate target cell in the assistance information. For a recommended cell, the network preferentially configures it as a candidate cell, and for a non-recommended cell, the network may not select it as a candidate cell;
  • the network may configure candidate target cells according to the recommendation degree of the neighboring cells.
  • the network can select neighboring cells with a recommendation degree greater than the threshold value as candidate target cells, and can configure appropriate CHO execution conditions according to different recommendation degrees, so that the UE is more likely to access cells with a high recommendation degree.
  • the protocol stipulates that the auxiliary information reported by the UE is the neighboring cell ID that is recommended to be configured as the candidate target cell;
  • the network indicates that the UE needs to report the auxiliary information through the RRC reconfiguration message, and the auxiliary network determines the CHO candidate target cell and configures the threshold value as 0.
  • the UE receives the RRC reconfiguration message sent by the network, and obtains its own location.
  • the UE calculates the starting and ending times of the UE's location covered by neighboring cells 1, 2, 3, 5, 6, and 7 in the figure, that is, the service time range and the corresponding service duration, and the serving cell 4 covers the UE's location. The end moment of the location.
  • neighbor cells 3 and 7 are recommended to be configured as candidates. Neighborhood.
  • the UE reports the cell IDs of neighboring cells 3 and 7 and the identifiers of the corresponding serving satellites.
  • the network configures a CHO command for the UE according to the IDs of neighboring cells 3 and 7 reported by the UE and the identifiers of the corresponding serving satellites, and its candidate target cells are neighboring cells 3 and 7.
  • the protocol stipulates that the auxiliary information reported by the UE is the neighbor cell ID that is not recommended to be configured as a candidate target cell;
  • the network indicates through the RRC reconfiguration message that the UE needs to report the auxiliary information, and the network is assisted to determine the CHO candidate target cell.
  • the UE receives the RRC reconfiguration message sent by the network, and obtains its own location.
  • the reference points corresponding to the serving cell and neighboring cells are both the cell centers, and the UE calculates the serving distance information of neighboring cells 1, 2, 3, 5, 6, 7 and serving cell 4 in the figure.
  • the distance between the location of the UE and the cell center of neighboring cells 1, 2, 5, and 6 will not be greater than the corresponding cell radius, so neighboring cells 1, 2, 5, and 6 are not recommended. Configured as a candidate neighbor.
  • the UE reports the cell IDs of neighboring cells 1, 2, 5, and 6 and the identifiers of the corresponding serving satellites.
  • the network configures the CHO command for the UE according to the cell IDs of neighboring cells 1, 2, 5, and 6 reported by the UE and the identifier of the corresponding serving satellite, and excludes neighboring cells 1, 2, 5, and 6, and its candidate target cell is a neighboring cell.
  • the network indicates that the UE needs to report the auxiliary information through the RRC reconfiguration message, and the auxiliary network determines the CHO candidate target cell and configures the threshold value as 0.
  • the auxiliary information reported by the UE is indicated as follows: neighboring cells 3, 5, 6, and 7 are the recommendation degrees of the candidate target cells.
  • the UE receives the RRC reconfiguration message sent by the network, and obtains its own location.
  • the UE calculates the starting and ending time of the neighboring cells 3, 5, 6, and 7 covering the UE's location in the figure, that is, the service time range and the corresponding service time, and the serving cell 4 covers the end time of the UE1's location. .
  • the service durations of neighboring cells 3 and 7 are 4 and 10, respectively, and there is an overlap between the service time range of neighboring cells 3 and 7 and the service time between serving cell 4 .
  • the recommendation degrees of neighboring cells 3 and 7 are calculated to be 40% and 100%, respectively.
  • the UE reports the recommendation degrees of neighboring cells 3, 5, 6, and 7.
  • the network configures a CHO command for the UE according to the recommendation degrees of neighboring cells 3, 5, 6, and 7 reported by the UE, and its candidate target cells are neighboring cells 3 and 7.
  • the CHO execution condition of neighboring cell 3 is that the signal strength of neighboring cell 3 is 3 dB higher than that of the serving cell.
  • the CHO execution condition of the neighboring cell 7 is that the signal strength of the neighboring cell 7 is 1 dB higher than that of the serving cell.
  • An embodiment of the present disclosure further provides an electronic device, comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to implement the above-mentioned method for determining a candidate cell.
  • Embodiments of the present disclosure further provide a computer-readable storage medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the above steps in candidate cell determination are implemented.
  • Fig. 7 is a schematic block diagram of an apparatus 700 for candidate cell determination according to an embodiment of the present disclosure.
  • apparatus 700 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • the apparatus 700 may include one or more of the following components: a processing component 702, a memory 704, a power supply component 706, a multimedia component 708, an audio component 710, an input/output (I/O) interface 712, a sensor component 714, and communication component 716 .
  • the processing component 702 generally controls the overall operation of the device 700, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 702 can include one or more processors 720 to execute instructions to perform all or part of the steps of the above-described method for determining a candidate cell.
  • processing component 702 may include one or more modules to facilitate interaction between processing component 702 and other components.
  • processing component 702 may include a multimedia module to facilitate interaction between multimedia component 708 and processing component 702.
  • Memory 704 is configured to store various types of data to support operations at device 700 . Examples of such data include instructions for any application or method operating on device 700, contact data, phonebook data, messages, pictures, videos, and the like. Memory 704 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power supply assembly 706 provides power to the various components of device 700 .
  • Power components 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 700 .
  • Multimedia component 708 includes screens that provide an output interface between the device 700 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.
  • multimedia component 708 includes a front-facing camera and/or a rear-facing camera. When the apparatus 700 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data.
  • Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 710 is configured to output and/or input audio signals.
  • audio component 710 includes a microphone (MIC) that is configured to receive external audio signals when device 700 is in operating modes, such as call mode, recording mode, and voice recognition mode.
  • the received audio signal may be further stored in memory 704 or transmitted via communication component 716 .
  • audio component 710 also includes a speaker for outputting audio signals.
  • the I/O interface 712 provides an interface between the processing component 702 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor assembly 714 includes one or more sensors for providing status assessment of various aspects of device 700 .
  • the sensor assembly 714 can detect the open/closed state of the device 700, the relative positioning of components, such as the display and keypad of the device 700, and the sensor assembly 714 can also detect a change in the position of the device 700 or a component of the device 700 , the presence or absence of user contact with the device 700 , the orientation or acceleration/deceleration of the device 700 and the temperature change of the device 700 .
  • Sensor assembly 714 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 714 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 716 is configured to facilitate wired or wireless communication between apparatus 700 and other devices.
  • Device 700 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof.
  • the communication component 716 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 716 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 700 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components are implemented to perform the above-mentioned candidate cell determination method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller a controller
  • microcontroller a microcontroller
  • microprocessor or other electronic components are implemented to perform the above-mentioned candidate cell determination method.
  • a non-transitory computer-readable storage medium including instructions such as a memory 704 including instructions, is also provided, and the instructions are executable by the processor 720 of the apparatus 700 to complete the above-mentioned candidate cell determination method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

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Abstract

本公开涉及候选小区确定方法和装置,其中,所述候选小区确定方法包括:向网络侧设备发送辅助信息,所述辅助信息用于辅助网络侧设备确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。根据本公开,终端可以确定辅助网络侧设备确定候选小区的辅助信息,并将该辅助信息发送给网络侧设备。从而,网络侧设备可以参考该辅助信息来确定候选小区,相较于网络侧设备直接自行确定候选小区,可以提高确定出的候选小区的准确度,避免资源浪费,保证终端通信质量。

Description

候选小区确定方法和装置 技术领域
本公开涉及通信技术领域,具体而言,涉及候选小区确定方法和装置,电子设备和计算机可读存储介质。
背景技术
在传统的切换方案中,网络侧设备通常可以指示终端切换到目标网络。但在NTN(Non-Terrestrial Networks,非地面网络)中,卫星高度高,传输时延大,甚至比地面网络TN***的时延高几个数量级,因而若在NTN中采用传统的切换方案,则会面临测量过时,切换不及时等问题,进而导致切换失败等风险。
在相关技术中,为了避免上述问题,提升NTN***中切换的鲁棒性,可以采用CHO(Conditional Handover,条件切换)的方案。举例来说,网络侧设备可以为终端配置一个或多个候选小区(Candidate cells),以及切换执行条件,由此,终端自行评估是否满足切换执行条件,当满足一个或多个切换执行条件时,终端可以执行切换。
在CHO方案中,网络侧设备一般根据终端上报的测量报告来确定CHO候选小区。然而,由于NTN网络中传输时延大,终端上报的测量报告即时性低,从而导致网络侧设备配置给终端的候选小区的准确性低,影响终端的通信质量。
发明内容
有鉴于此,本公开的实施例提出了候选小区确定方法和装置,以解决相关技术中的技术问题。
根据本公开实施例的第一方面,提出一种候选小区确定方法,被终端执行,所述方法包括:
向网络侧设备发送辅助信息,所述辅助信息用于辅助网络侧设备确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
根据本公开实施例的第二方面,提出一种候选小区确定方法,被网络侧设备执 行,所述方法包括:
接收终端发送的辅助信息;
基于所述辅助信息确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
根据本公开实施例的第三方面,提出一种候选小区确定装置,应用于终端,所述方法包括:
辅助信息发送模块,被配置为向网络侧设备发送辅助信息,所述辅助信息用于辅助网络侧设备确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
根据本公开实施例的第四方面,提出一种候选小区确定装置,应用于网络侧设备,所述方法包括:
辅助信息接收模块,被配置为接收终端发送的辅助信息;
候选小区确定模块,被配置为基于所述辅助信息确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
根据本公开实施例的第五方面,提出一种电子设备,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为实现上述候选小区确定方法。
根据本公开实施例的第六方面,提出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上述候选小区确定方法中的步骤。
根据本公开的实施例,终端可以确定辅助网络侧设备确定候选小区的辅助信息,并将该辅助信息发送给网络侧设备。从而,网络侧设备可以参考该辅助信息来确定候选小区,相较于网络侧设备直接自行确定候选小区,可以提高确定出的候选小区的准确度,避免资源浪费,保证终端通信质量。
附图说明
为了更清楚地说明本公开实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施 例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是根据本公开的实施例示出的一种候选小区确定方法的示意流程图。
图2是根据本公开的实施例示出的另一种候选小区确定方法的示意流程图。
图3是根据本公开的实施例示出的另一种候选小区确定方法的示意流程图。
图4是根据本公开的实施例示出的一种候选小区确定方法的示意框图。
图5是根据本公开的实施例示出的另一种候选小区确定方法的示意框图。
图6是根据本公开的实施例示出的一种应用场景的示意图。
图7是根据本公开的实施例示出的一种用于候选小区确定的装置的示意框图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
NTN是指通过卫星等设备,而不是地面基站来为终端提供无线资源的网络。在NTN中,可以采用CHO的方案来实现终端的小区切换。一般的,网络侧设备可以为终端配置一个或多个候选小区,以及候选小区所对应的切换执行条件。由此,终端可以评估是否满足切换执行条件,并在满足切换执行条件的情况下,切换到该切换执行条件对应的候选小区。其中,不同候选小区对应的切换执行条件可以相同,也可以不同。
这里,网络侧设备可以是接入网中的设备,或者也可以是核心网中的设备,本实施例不进行限定。
现有的CHO候选目标小区的选择都是根据网络实现配置的,但是由于NTN网络中远近效应不明显,即小区边缘和小区中心的测量结果差异不大,且NTN网络中传播时延大会导致测量过时,测量结果不准确。网络无法根据测量报告配置合适的CHO候选目标小区。另一方面考虑到UE的隐私和安全性,目前RAN2尚未同意UE上报自身的位置信息给网络,网络无法知道UE的位置,则无法知道哪些邻区后续可以为 UE提供覆盖,所以网络配置候选目标小区集可能会包括后续并不会为UE提供覆盖的小区。
举例来说,在相关技术中,网络侧设备通常可以根据终端上报的测量报告来确定候选小区,例如可以将测量报告中信号质量较好的邻小区作为候选小区。然而,这种方法中可能还存在如下问题:(1)NTN网络中远近效应不明显,即终端在小区中心的信号质量(例如参考信号接收功率RSRP、参考信号接收质量RSRQ等)与在小区边缘差别不大,从而,网络侧设备无法根据终端的测量报告来确定终端在当前服务小区中的位置;(2)NTN网络中传输时延大,导致终端的测量过时,从而测量报告不准确;(3)NTN中卫星处于移动状态,但为了保护用户的隐私和安全,网络侧设备无法获取到终端的具***置,从而网络侧设备无法预测哪些移动的卫星的小区可以覆盖终端。
由于上述网络侧设备根据测量报告来确定候选小区的方法中存在上述一个或多个问题,可能导致确定出的候选小区不准确,例如确定出的候选小区包括不适合终端接入的小区,造成资源浪费;或者候选小区不包括最适合终端接入的小区,从而影响终端的通信质量。
有鉴于此,本公开的实施例提出了候选小区确定方法,以提高网络侧设备确定的候选小区的准确性。
图1是根据本公开的实施例示出的一种候选小区确定方法的示意流程图。本实施例所示的候选小区确定方法可以适用于终端,所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等电子设备。所述终端可以作为用户设备与网络侧设备通信,在一个实施例中,所述网络侧设备可以是后续任一实施例所述的候选小区确定方法所适用的网络侧设备。
如图1所示,所述候选小区确定方法,被终端执行,可以包括以下步骤:
在步骤S101中,向网络侧设备发送辅助信息。
其中,所述辅助信息用于辅助网络侧设备确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
在一个实施例中,终端可以向网络侧设备发送辅助信息,以辅助网络侧设备确定候选小区。
在一个例子中,终端向网络侧设备发送辅助信息的方法,包括以下至少一种: 按照预设周期向所述网络侧设备发送候选小区推荐信息;响应于发生预设的测量事件,向所述网络侧设备发送候选小区推荐信息;向所述网络侧设备发送测量报告,并在所述测量报告中携带所述候选小区推荐信息。其中,预设的测量事件可以是A1-A5事件,或者也可以是其他的测量事件,本实施例不进行限定。
在一个实施例中,网络侧设备可以接收终端发送的辅助信息,并基于所述辅助信息确定候选小区。
在一个例子中,辅助信息可以指示至少一个邻小区的推荐信息,其中,推荐信息可以是以下至少一项:推荐作为候选小区、不推荐作为候选小区、推荐作为候选小区的推荐度。
在一个例子中,网络侧设备可以根据该辅助信息,即至少一个邻小区的推荐信息,确定是否将该邻小区作为推荐小区。举例来说,若一个邻小区被推荐作为候选小区,则网络侧设备可以将其确定为候选小区,或者,网络侧设备也可以优先将其确定为候选小区;若一个邻小区被不推荐作为候选小区,则网络侧设备在确定候选小区时可以排除该邻小区,即不将该邻小区确定为候选小区,或者,网络侧设备还可以根据推荐度来确定是否将该邻小区作为候选小区等。
根据上述实施例,终端可以确定辅助网络侧设备确定候选小区的辅助信息,并将该辅助信息发送给网络侧设备。从而,网络侧设备可以参考该辅助信息来确定候选小区,相较于网络侧设备直接自行确定候选小区,可以提高确定出的候选小区的准确度,避免资源浪费,保证终端通信质量。
在一个实施例中,辅助信息可以包括以下信息中的一种或多种:
推荐作为候选小区的至少一个邻小区的标识;
不推荐作为候选小区的至少一个邻小区的标识。
其中,邻小区的标识可以是小区ID和卫星标识中的至少一个。
在一个例子中,终端可以向网络侧设备上报至少一个邻小区的标识,将邻小区推荐给网络侧设备作为候选小区。举例来说,终端可以仅上报一个标识,比如可以上报最适合终端接入的邻小区的标识;或者,终端也可以上报多个标识,例如可以是一个标识的集合,比如该多个标识可以是终端当前可以接入或未来可以接入的多个邻小区的标识。
根据上述实施例,终端可以确定能作为候选小区的邻小区,由于终端对自身信息了解比较全面,因而终端推荐的邻小区准确度较高,从而可以提高网络侧设备确定候选小区的准确度,保证终端通信质量。
在一个例子中,终端可以向网络侧设备上报至少一个邻小区的标识,不推荐网络侧设备将该小区作为候选小区,即指示网络侧设备不要将该邻小区作为候选小区。举例来说,终端可以仅上报一个标识,指示一个终端不适合接入的邻小区;或者,终端也可以上报多个标识,例如可以是一个标识的集合,比如该多个标识可以是终端当前无法接入且未来也无法接入的多个邻小区的标识。
根据上述实施例,终端可以确定不能作为候选小区的邻小区,由于终端对自身信息了解更加全面,因而终端不推荐的邻小区通常是无法接入或无法长时间接入的邻小区,从而可以提高网络侧设备确定候选小区的准确度,避免资源浪费。
在一个例子中,终端可以根据网络侧设备的指示来确定辅助信息。例如,若网络侧设备指示终端上报推荐作为候选小区的邻小区,则终端可以在辅助信息中携带推荐作为候选小区的至少一个邻小区的标识;若网络侧设备指示终端上报不推荐作为候选小区的邻小区,则终端可以在辅助信息中携带不推荐作为候选小区的至少一个邻小区的标识。
在一个实施例中,终端可以自行决定需要确定哪些邻小区的推荐信息。例如可以针对当前服务小区的每个邻小区,分别确定推荐信息;或者也可以从当前服务小区的邻小区中筛选出部分邻小区,分别确定推荐信息。从而,终端可以根据该推荐信息确定辅助信息,例如终端可以将所有推荐作为候选小区的至少一个邻小区的标识携带在辅助信息中;或者也可以将所有不推荐作为候选小区的至少一个邻小区的标识携带在辅助信息中;或者也可以两者都携带在辅助信息中,并通过标识来区分哪些为推荐作为候选小区的,哪些为不推荐作为候选小区的。
在一个实施例中,终端可以根据网络侧设备的指示来确定邻小区的推荐信息。例如,网络侧设备可以在测量配置中携带指定标识来指示一个或多个指定的邻小区例如可以携带在RRCReconfiguration消息中。在一个例子中,终端可以接收网络侧设备发送的指定标识,其中,网络侧设备发送的指定标识可以是网络侧设备指定的一个或多个邻小区的标识,终端可以根据该指定标识确定一个或多个邻小区,并确定每个邻小区的推荐信息,并携带在辅助信息中。从而辅助信息可以包括以下至少一项:所述指定标识所指示的邻小区是否推荐作为候选小区、所述指定标识所指示的邻小区推荐 作为候选小区的推荐度。
根据上述实施例,网络侧设备可以将较难评估是否适合作为候选小区的邻小区标识发送给终端,从而由终端来对该邻小区进行评估,确定该邻小区的推荐信息。由此,网络侧设备可以更准确地确定候选小区,避免资源浪费,保证终端通信质量。
在一个实施例中,针对需要确定推荐信息的每一个邻小区,例如网络侧设备指定的邻小区,或者当前服务小区的邻小区,可以根据该邻小区的参考信息来确定邻小区的推荐信息。下面结合图2介绍一个实施例。
图2是根据本公开的实施例示出的另一种候选小区确定方法的示意流程图,该方法被终端执行,如图2所示,所述方法还包括:
步骤S201:确定以下至少一项参考信息:邻小区能为所述终端提供服务的第一时间信息、所述终端当前的服务小区能为所述终端提供服务的第二时间信息、邻小区对应的第一参考点与所述终端之间的距离信息、用于指示邻小区覆盖范围的第一距离阈值、所述终端当前的服务小区对应的第二参考点与所述终端之间的距离信息、用于指示服务小区覆盖范围的第二距离阈值。
在一个实施例中,针对上述参考信息中的第一距离阈值和第二距离阈值:在一个例子中,终端可以从网络侧设备获取该参考信息,例如,网络侧设备可以广播发送或通过专用信令发送该参考信息,从而终端可以接收该参考信息;在另一个例子中,终端中可以预设该参考信息。
在一个实施例中,针对上述参考信息中的第一时间信息、第二时间信息、邻小区对应的第一参考点与所述终端之间的距离信息、服务小区对应的第二参考点与所述终端之间的距离信息:终端可以小区变化信息和终端位置来预测得到。其中,小区变化信息可以包括小区覆盖范围变化信息、或小区中参考点的位置变化信息,该小区变化信息终端可以从星历中获取,也可以从网络侧设备获取。
在一个例子中,终端可以根据星历或网络侧设备的指示来确定小区的覆盖范围,同时结合终端的位置,从而终端可以预测上述第一时间信息和第二时间信息。在另一个例子中,终端可以根据星历或网络侧设备的指示来确定小区中参考点(包括邻小区对应的第一参考点、或服务小区对应的第二参考点)的位置变化信息,同时结合终端的位置,从而预测上述距离信息。
在一个实施例中,终端的位置可以是固定的,也可以是变化的。
在一个实施例中,第一参考点为邻小区中的一个位置,该位置随邻小区的覆盖范围变化而变化,例如该第一参考点可以是邻小区的小区中心。
在一个实施例中,第一距离阈值可以指示邻小区的覆盖范围,例如可以是邻小区的覆盖范围内距离第一参考点的最远距离。若第一参考点为邻小区的小区中心,则第一距离阈值可以是邻小区的小区半径。
在一个实施例中,第二参考点为服务小区中的一个位置,该位置随服务小区的覆盖范围变化而变化,例如该第一参考点可以是服务小区的小区中心。
在一个实施例中,第二距离阈值可以指示服务小区的覆盖范围,例如可以是服务小区的覆盖范围内距离第二参考点的最远距离。若第二参考点为服务小区的小区中心,则第二距离可以是服务小区的小区半径。
在一个实施例中,第一时间信息和第二时间信息可以是起始时刻、结束时刻、时长中的至少一个。
在一个实施例中,第一时间信息和第二时间信息可以是终端直接确定的,例如,终端可以对提供过服务的小区进行记录,然后根据历史记录来确定该第一时间信息和第二时间信息。举例来说,终端可以根据邻小区对应的卫星的当前位置,以及历史记录中卫星处于当前位置时所能提供的服务的时间信息以及终端的位置信息来确定第一时间信息;或者,终端可以根据服务小区对应的卫星的当前位置,以及历史记录中卫星处于当前位置时所能提供的服务的时间信息以及终端的位置信息来确定第二时间信息。
在一个实施例中,第一时间信息为终端处于邻小区覆盖范围内的时间信息;第二时间信息为终端处于服务小区覆盖范围内的时间信息。
基于此,在一个例子中,所述第一时间信息可以是基于所述邻小区的覆盖范围变化信息确定,所述第二时间信息可以是基于所述服务小区的覆盖范围变化信息确定。
在一个例子中,终端可以根据自身的位置和小区(可以是邻小区或者也可以是服务小区)的覆盖范围变化信息来确定终端是否处于小区的覆盖范围内。
在一个实施例中,小区的覆盖范围变化信息可以通过多种方式来指示,例如覆盖范围变化信息可以包括参考点的位置变化信息;或者,覆盖范围变化信息可以包括小区中一个或多个点的位置变化信息。下面分别进行示例性说明。
在一个实施例中,覆盖范围变化信息可以包括参考点的位置变化信息。邻小区的覆盖范围变化信息可以包括第一参考点的位置变化信息,服务小区的覆盖范围变化信息可以包括第二参考点的位置变化信息。
在一个例子中,第一参考点和/或第二参考点的位置变化信息,可以是第一参考点和/或第二参考点的当前位置坐标、移动方向、以及移动速度,从而终端可以预估第一参考点和/或第二参考点在未来时刻的位置坐标。
在一个例子中,终端可以根据第一参考点的位置变化信息,预测终端与第一参考点的距离变化,在距离小于第一距离阈值时,邻小区能提供服务;在距离不小于第一距离阈值时,邻小区不能提供服务。基于此,在一个例子中,终端可以确定所述第一时间信息为所述终端与所述第一参考点之间的距离小于所述第一距离阈值的时间信息,例如可以是距离小于所述第一距离阈值的起止时间和时长中的至少一个。
在一个例子中,终端可以根据第二参考点的位置变化信息,预测终端与第二参考点的距离变化,在距离小于第二距离阈值时,服务小区能提供服务;在距离不小于第二距离阈值时,服务小区不能提供服务。基于此,在一个例子中,终端可以确定所述第二时间信息为所述终端与所述第二参考点之间的距离小于所述第二距离阈值的时间信息,例如可以是距离小于所述第二距离阈值的起止时间和时长中的至少一个。
在一个实施例中,覆盖范围变化信息可以包括小区(可以是邻小区或者也可以是服务小区)中多个点的位置变化信息,例如可以是小区边缘多个点的位置变化信息。邻小区的覆盖范围变化信息可以包括邻小区中多个点的位置变化信息,服务小区的覆盖范围变化信息可以包括服务小区中多个点的位置变化信息。
在一个例子中,小区中多个点的位置变化信息,可以包括该多个点的当前位置坐标、移动方向、以及移动速度,从而终端可以预估该多个点在未来时刻的位置坐标,从而确定在未来时刻的小区覆盖范围。
在一个例子中,终端可以根据邻小区中多个点预估邻小区的覆盖范围,并确定终端处于该邻小区覆盖范围内的第一时间信息。基于同样的方法,终端可以根据服务小区中多个点预估服务小区的覆盖范围,并确定终端处于该服务小区覆盖范围内的第二时间信息。
在一个实施例中,第一参考点可以是邻小区对应的卫星,第二参考点可以是服务小区对应的卫星,卫星按照特定的运动轨迹运动。终端可以通过星历来确定卫星的 运动轨迹,或者终端也可以从网络侧设备获取卫星的运动轨迹。
在一个实施例中,第一距离阈值可以指示邻小区覆盖范围,例如可以是邻小区覆盖范围内与邻小区对应卫星之间的最远距离;在一个实施例中,第二距离阈值可以指示服务小区覆盖范围,例如可以是服务小区覆盖范围内与服务小区对应卫星之间的最远距离。
基于此,在终端与邻小区对应卫星之间的距离小于第一距离阈值时,邻小区能提供服务;在终端与邻小区对应卫星之间的距离不小于第一距离阈值时,邻小区不能提供服务;在终端与服务小区对应卫星之间的距离小于第二距离阈值时,服务小区能提供服务;在终端与服务小区对应卫星之间的距离不小于第二距离阈值时,服务小区不能提供服务。
在一个实施例中,所述第一时间信息可以是基于所述邻小区对应卫星与终端之间的距离确定,所述第二时间信息可以是基于所述服务小区对应卫星与终端之间的距离确定。由此,终端可以根据自身的位置、以及卫星的运动轨迹,分别预测终端与邻小区对应卫星之间的距离信息、以及终端与服务小区对应卫星之间的距离信息。
在一个例子中,终端可以确定:第一时间信息为所述终端与邻小区对应卫星之间的距离小于所述第一距离阈值的时间信息;所述第二时间信息为所述终端与服务小区对应卫星之间的距离小于所述第二阈值的时间信息。
步骤S202:根据所述至少一项参考信息确定邻小区的推荐信息,所述推荐信息包括以下至少一个:所述邻小区是否推荐作为候选小区、邻小区推荐作为候选小区的推荐度。
在一个实施例中,终端可以根据步骤S201中的至少一项参考信息来确定邻小区的推荐信息。
在一个实施例中,终端可以根据第一时间信息和第二时间信息来确定邻小区的推荐信息。响应于所述第一时间信息与所述第二时间信息不存在交集,确定不推荐所述邻小区作为候选小区;或者,响应于所述第一时间信息与所述第二时间信息存在交集,确定推荐所述邻小区作为候选小区。
在一个例子中,第一时间信息可以包括邻小区能为终端提供服务的起始时间,第二时间信息可以包括服务小区能为终端提供服务的结束时间。
在一个例子中,若第一时间信息和第二时间信息存在交集,则终端可以从服务 小区切换到邻小区。因此,该邻小区适合终端接入,即终端可以将该邻小区推荐作为候选小区。
在一个例子中,若第一时间信息和第二时间信息不存在交集,则终端无法直接从服务小区切换到邻小区。因此,该邻小区不适合终端接入,即终端可以将该邻小区不推荐作为候选小区。
在一个实施例中,终端可以根据第一时间信息来确定邻小区的推荐信息。举例来说,终端可以基于所述第一时间信息确定所述邻小区能为所述终端提供服务的第一时长;响应于所述第一时长不大于预设时长阈值,确定不推荐所述邻小区作为候选小区;或者,响应于所述第一时长大于预设时长阈值,确定推荐所述邻小区作为候选小区。
其中,时长阈值可以是终端中预设的,例如可以是协议规定;或者也可以是网络侧设备配置给终端的,例如可以是网络侧设备可以在测量配置中配置的,例如可以携带在RRCReconfiguration消息中。
在一个例子中,第一时间信息可以包括邻小区能为终端提供服务的第一时长,则终端可以直接获取该第一时长;或者,第一时间信息可以包括邻小区能为终端提供服务的起始时间和结束时间,则终端可以根据结束时间与起始时间的差值确定第一时长。
在一个例子中,终端可以预设一个时长阈值。若第一时长不大于预设时长阈值,说明该邻小区能为终端提供服务的时长较短,而终端为了保证通信稳定,一般会避免频繁切换,因此该邻小区不适合终端接入,即终端可以将该邻小区不推荐作为候选小区。若第一时长大于预设时长阈值,说明该邻小区能为终端提供服务的时长较长,终端若接入该邻小区无需频繁切换,因此该邻小区适合终端接入,即终端可以将该邻小区推荐作为候选小区。
在一个例子中,终端也可以不需要预设时长阈值,而是直接根据第一时长来确定邻小区的推荐信息。举例来说,终端可以基于第一时长,确定所述邻小区推荐作为候选小区的推荐度;其中,所述推荐度与所述第一时长成正相关。也就是说,第一时长越长,推荐度越高。需要说明的是,推荐度与第一时长的具体确定方法可以根据实际情况确定,比如两者可以成正比等,本实施例不进行限定。
在一个实施例中,终端可以根据上述第一时长,以及第一时间信息和第二时间 信息是否存在交集,来确定邻小区是否推荐作为候选小区。
在一个例子中,响应于所述第一时间信息与所述第二时间信息存在交集、且第一时长大于预设时长阈值,终端确定推荐所述邻小区作为候选小区。终端既可以从服务小区直接切换到邻小区,又可以较长时间接入该邻小区,保证通信稳定。
在一个实施例中,终端可以基于邻小区对应的第一参考点与所述终端之间的距离信息、和用于指示邻小区覆盖范围的第一距离阈值来确定邻小区的推荐信息。举例来说,终端可以基于邻小区对应的第一参考点与所述终端之间的距离信息,确定所述第一参考点与所述终端之间的最小距离,响应于所述最小距离不小于所述第一距离阈值,确定不推荐所述邻小区作为候选小区;或者,响应于所述最小距离大于所述第一距离阈值,确定推荐所述邻小区作为候选小区。
在一个例子中,这里的最小距离,指的是第一参考点与终端之间未来可能存在的最小距离。
在一个例子中,若最小距离小于第一距离阈值,则终端能进入该邻小区的覆盖范围,因此,终端可以将该邻小区推荐作为候选小区。
在一个例子中,若该最小距离不小于第一距离阈值,则终端不能进入该邻小区的覆盖范围,也就是说,即使将该邻小区作为候选小区,终端也不会接入该邻小区,而为了节约资源,可以将该邻小区不推荐作为候选小区。
在一个实施例中,终端可以基于邻小区对应的第一参考点与所述终端之间的距离信息来确定邻小区的推荐信息、用于指示邻小区覆盖范围的第一距离阈值、所述终端当前的服务小区对应的第二参考点与所述终端之间的距离信息、以及用于指示服务小区覆盖范围的第二距离阈值来确定邻小区的推荐信息。
在一个例子中,终端可以确定终端当前的服务小区对应的第二参考点与所述终端之间的距离小于该第二距离阈值的时间信息,若存在至少一个时刻,邻小区对应的第一参考点与所述终端之间的距离也小于第一距离阈值,则说明终端可以从服务小区切换到该邻小区,因此,该邻小区适合终端接入,即终端可以将该邻小区推荐作为候选小区。
在一个实施例中,终端可以基于邻小区对应的第一参考点与所述终端之间的距离信息,来确定邻小区的推荐信息。举例来说,终端可以基于邻小区对应的第一参考点与所述终端之间的距离信息,确定所述第一参考点与所述终端之间的最小距离,然 后基于所述最小距离,确定所述邻小区推荐作为候选小区的推荐度;所述推荐度与所述最小距离成负相关。
在一个例子中,推荐度可以与最小距离成反比。由于不同的邻小区覆盖范围大小差别较大,为了统一推荐度的衡量标准,可以将推荐度确定为第一距离阈值与所述最小距离的比值。
根据上述实施例,邻小区对应的第一参考点与所述终端之间的距离的最小距离越小,推荐度越高;该最小距离越大,推荐度越低。以邻小区的覆盖范围为圆、第一参考点为圆心为例,最小距离越小,则终端在小区覆盖范围内的越靠近圆心,从而该邻小区能为终端提供服务的时长越长,因此该邻小区比较适合终端接入,推荐度高;相反,最小距离越小,则终端在小区覆盖范围内的越靠近边缘,从而该邻小区能为终端提供服务的时长越短,因此该邻小区不是很适合终端接入,推荐度低。
在一个例子中,终端在基于上述第一时长和/或上述最小距离确定推荐度时,可以先按照前述实施例中的方法确定邻小区是否被推荐作为候选小区,若该邻小区不推荐作为候选小区,则确定推荐度为某个指定数值(比如k);或者,若该邻小区推荐作为候选小区,则确定可以基于第一时长和最小距离中的至少一个来确定推荐度。
图3是根据本公开的实施例示出的另一种候选小区确定方法的示意流程图。本实施例所示的候选小区确定方法可以被网络侧设备执行。在一个实施例中,网络侧设备可以是接入网中的设备,也可以是核心网中的设备。所述网络侧设备可以与作为用户设备的终端进行通信,所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等电子设备。在一个实施例中,所述终端可以是上述任一实施例所述候选小区确定方法所适用的终端。
如图3所示,所述候选小区确定方法可以包括以下步骤:
在步骤S301中,接收终端发送的辅助信息。
在步骤S302中,基于所述辅助信息确定候选小区。
其中,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
在一个实施例中,终端可以向网络侧设备发送辅助信息,从而网络侧设备可以基于所述辅助信息确定候选小区。
根据上述实施例,终端可以确定可以用于辅助网络侧设备确定候选小区的辅助 信息,并将该辅助信息发送给网络侧设备。从而,网络侧设备可以参考该辅助信息来确定候选小区,相较于网络侧设备直接自行确定候选小区,可以提高确定出的候选小区的准确度,避免资源浪费,保证终端通信质量。
在一个实施例中,网络侧设备还可以向终端获取指定的邻小区的推荐信息。举例来说,网络侧设备可以向所述终端发送指定标识,所述指定标识用于指示所述终端将以下至少一项携带在辅助信息中:所述指定标识所指示的邻小区是否推荐作为候选小区、所述指定标识所指示的邻小区推荐作为候选小区的推荐度。
在一个例子中,基于该指定标识,终端可以确定该指定标识所指示的邻小区,然后确定该邻小区的推荐信息,即以下至少一项:该邻小区是否推荐作为候选小区、该邻小区推荐作为候选小区的推荐度。
在一个实施例中,终端发送的辅助信息可以指示至少一个邻小区的推荐信息,其中,推荐信息可以是以下至少一项:推荐作为候选小区、不推荐作为候选小区、推荐作为候选小区的推荐度。
在一个实施例中,所述基于所述辅助信息确定候选小区,包括:
响应于所述辅助信息中包括推荐作为候选小区的邻小区的标识,将所述邻小区确定为候选小区;或者,响应于所述辅助信息中包括不推荐作为候选小区的邻小区的标识,排除将所述邻小区确定为候选小区。
在一个例子中,网络侧设备可以不是直接将终端推荐的邻小区确定为候选小区,而是提高该邻小区作为候选小区的优先级,若该邻小区相较于其他邻小区优先级更高,则将该邻小区确定为候选小区。网络侧设备的具体实现方法可以根据实际情况确定,本实施例不进行限定。
在一个例子中,网络侧设备可以不是直接排除将终端不推荐的邻小区确定为候选小区,例如若网络侧设备确定其他邻小区也不适合作为候选小区,则仍可以将该终端不推荐的邻小区确定为候选小区。网络侧设备的具体实现方法可以根据实际情况确定,本实施例不进行限定。
在一个实施例中,网络侧设备也可以根据候选小区的推荐度来确定候选小区,响应于所述辅助信息中包括的邻小区作为候选小区的推荐度,基于所述推荐度确定候选小区。
在一个例子中,网络侧设备可以预设推荐度阈值,将所述推荐度高于预设阈值 的邻小区确定为候选小区。
在一个例子中,网络侧设备还可以根据推荐度来确定候选小区对应的切换执行条件。这里,切换执行条件用于指示终端评估是否满足该切换执行条件,并在满足该切换执行条件时,切换到与该切换执行条件对应的候选小区。
在一个例子中,响应于所述推荐度指示将所述邻小区推荐作为候选小区,网络侧设备可以基于所述推荐度确定该候选小区对应的切换执行条件;其中,所述切换执行条件被终端所满足的难度与所述推荐度成负相关。
在一个例子中,网络侧设备可以先根据推荐度来确定终端是否推荐将该邻小区作为候选小区,例如网络侧和终端可以预先协商,当推荐度大于某个阈值(比如k)时表示终端推荐将该邻小区作为候选小区。
针对被推荐作为候选小区的邻小区,网络侧设备基于推荐度来确定该邻小区对应的切换执行条件。例如,网络侧设备可以为推荐度高的邻小区确定比较容易满足的切换执行条件,为推荐度低的邻小区确定比较难满足的切换执行条件。
由于终端一般是在切换到先满足切换执行条件的候选小区,因此,根据本实施例的方法,终端接入推荐度高的邻小区概率更高。
与前述的候选小区确定方法的实施例相对应,本公开还提供了候选小区确定装置的实施例。
图4是根据本公开的实施例示出的一种候选小区确定装置的示意流程图。本实施例所示的候选小区确定装置可以适用于终端,所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等电子设备。所述终端可以作为用户设备与网络侧设备通信,在一个实施例中,所述网络侧设备可以是后续任一实施例所述的候选小区确定装置所适用的网络侧设备。
如图4所示,所述候选小区确定装置,配置在终端侧,可以包括:
辅助信息发送模块401,被配置为向网络侧设备发送辅助信息,所述辅助信息用于辅助网络侧设备确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
在一个实施例中,所述辅助信息,包括以下信息中的一种或多种:推荐作为候选小区的至少一个邻小区的标识;不推荐作为候选小区的至少一个邻小区的标识。
在一个实施例中,所述装置还包括:
标识接收模块402,被配置为接收所述网络侧设备发送的指定标识;所述辅助信息包括以下至少一项:所述指定标识所指示的邻小区是否推荐作为候选小区、所述指定标识所指示的邻小区推荐作为候选小区的推荐度。
在一个实施例中,所述装置还包括:
参考信息确定模块403,被配置为确定以下至少一项参考信息:
邻小区能为所述终端提供服务的第一时间信息、所述终端当前的服务小区能为所述终端提供服务的第二时间信息、邻小区对应的第一参考点与所述终端之间的距离信息、用于指示邻小区覆盖范围的第一距离阈值、所述终端当前的服务小区对应的第二参考点与所述终端之间的距离信息、用于指示服务小区覆盖范围的第二距离阈值;
推荐信息确定模块404,被配置为根据所述至少一项参考信息确定邻小区的推荐信息,所述推荐信息包括以下至少一个:所述邻小区是否推荐作为候选小区、邻小区推荐作为候选小区的推荐度。
在一个实施例中,所述第一时间信息基于所述邻小区的覆盖范围变化信息确定,所述第二时间信息基于所述服务小区的覆盖范围变化信息确定。
在一个实施例中,所述第一时间信息为所述终端与所述第一参考点之间的距离小于所述第一距离阈值的时间信息;所述第二时间信息为所述终端与所述服务小区对应的第二参考点的距离小于第二阈值的时间信息。
在一个实施例中,所述推荐信息确定模块404,具体被配置为:
响应于所述第一时间信息与所述第二时间信息不存在交集,确定不推荐所述邻小区作为候选小区;或者,响应于所述第一时间信息与所述第二时间信息存在交集,确定推荐所述邻小区作为候选小区。
在一个实施例中,所述推荐信息确定模块404,还被配置为:
基于所述第一时间信息确定所述邻小区能为所述终端提供服务的第一时长;
响应于所述第一时长不大于预设时长阈值,确定不推荐所述邻小区作为候选小区;或者,响应于所述第一时长大于预设时长阈值,确定推荐所述邻小区作为候选小区。
在一个实施例中,所述推荐信息确定模块404,具体被配置为:
基于所述第一时间信息确定所述邻小区能为所述终端提供服务的第一时长;
基于所述第一时长,确定所述邻小区推荐作为候选小区的推荐度;其中,所述推荐度与所述第一时长成正相关。
在一个实施例中,所述推荐信息确定模块404,具体被配置为:
基于邻小区对应的第一参考点与所述终端之间的距离信息,确定所述第一参考点与所述终端之间的最小距离;
响应于所述最小距离不小于所述第一距离阈值,确定不推荐所述邻小区作为候选小区;或者,响应于所述最小距离大于所述第一距离阈值,确定推荐所述邻小区作为候选小区。
在一个实施例中,所述推荐信息确定模块404,具体被配置为:
基于邻小区对应的第一参考点与所述终端之间的距离信息,确定所述第一参考点与所述终端之间的最小距离;
基于所述最小距离,确定所述邻小区推荐作为候选小区的推荐度;所述推荐度与所述最小距离成负相关。
在一个实施例中,所述推荐度为所述第一距离阈值与所述最小距离的比值。
图5是根据本公开的实施例示出的另一种候选小区确定装置的示意流程图。本实施例所示的候选小区确定装置可以适用于网络侧设备。在一个实施例中,网络侧设备可以是接入网中的设备,也可以是核心网中的设备。所述网络侧设备可以与作为用户设备的终端进行通信,所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等电子设备。在一个实施例中,所述终端可以是上述任一实施例所述候选小区确定装置所适用的终端。
辅助信息接收模块501,被配置为接收终端发送的辅助信息;
候选小区确定模块502,被配置为基于所述辅助信息确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
在一个实施例中,候选小区确定模块502,具体被配置为:
响应于所述辅助信息中包括推荐作为候选小区的邻小区的标识,将所述邻小区确定为候选小区;或者,响应于所述辅助信息中包括不推荐作为候选小区的邻小区的标识,排除将所述邻小区确定为候选小区。
在一个实施例中,候选小区确定模块502,具体被配置为:
响应于所述辅助信息中包括邻小区推荐作为候选小区的推荐度,基于所述推荐度确定候选小区。
在一个实施例中,候选小区确定模块502,具体被配置为:
将所述推荐度高于预设推荐度阈值的邻小区确定为候选小区。
在一个实施例中,候选小区确定模块502,具体被配置为:
响应于所述推荐度指示将所述邻小区推荐作为候选小区,基于所述推荐度确定该候选小区对应的切换执行条件;其中,所述切换执行条件被终端所满足的难度与所述推荐度成负相关。
在一个实施例中,所述装置还包括:
指定标识发送模块503,被配置为向所述终端发送指定标识,所述指定标识用于指示所述终端将以下至少一项携带在辅助信息中:所述指定标识所指示的邻小区是否推荐作为候选小区、所述指定标识所指示的邻小区推荐作为候选小区的推荐度。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在相关方法的实施例中进行了详细描述,此处将不做详细阐述说明。
对于装置实施例而言,由于其基本对应于方法实施例,所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的,其中所述作为分离部件说明的模块可以是或者也可以不是物理上分开的,作为模块显示的部件可以是或者也可以不是物理模块,即可以位于一个地方,或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下,即可以理解并实施。
下面结合特定的技术细节,示例性介绍根据本公开的候选小区确定方法的实施例,如下:
以图6为例,图6是根据本公开的实施例示出的一种应用场景的示意图。
如图6所示,卫星运动方向如图中的箭头指定所示,图中包括两个终端UE1和UE2,该两个终端当前的服务小区为小区4,该小区4包括6个邻小区,分别为小区1、2、3、5、6、7。
在相关技术中,若是不考虑卫星的移动方向,网络侧设备为终端UE1和UE2配置的CHO候选目标小区集为{1,2,3,5,6,7},若考虑卫星的移动方向,则CHO候选目标小区集为{3,5,6,7}。
对于UE1来说,邻区5,6后续并不会为UE1提供服务,邻区3,5后续并不会为UE2提供服务,为UE1配置邻区5,6为候选目标小区,为UE2配置邻区3,5为候选目标小区分别会造成邻区5,6和邻区3,5的gNB资源被占用,造成资源浪费。对UE来说,UE1和UE2分别需要评估邻区5,6和邻区3,5的CHO执行条件,对UE的性能也存在一定的影响。
由于卫星以固定的轨迹运转,卫星小区的覆盖信息也是可知的,UE可以根据自己的位置信息、卫星星历/小区覆盖信息判断邻区后续是否能够提供覆盖。在本公开中,UE根据自身的位置和卫星星历或小区覆盖信息判断邻区后续是否能够为此UE提供覆盖,从而确定此邻区是否可以配置为CHO候选目标小区,并作为辅助信息上报给网络,网络通过UE上报的辅助信息确定此UE的有效的候选目标小区集以及相应的CHO配置。此方案能够有效的避免网络给UE配置无效的候选目标小区,减少gNB资源的浪费。
在本公开中,UE上报辅助信息,辅助网络确定CHO候选目标小区。
其中,所述辅助信息可以为以下信息的一种或多种:
推荐配置为候选目标小区的邻区ID、不推荐配置为候选目标小区的邻区ID、某邻区是否推荐配置为候选目标小区的指示、某邻区配置为候选目标小区的推荐度。
在一个实施例中,辅助信息还可以包括邻区对应的卫星标识。
UE可以通过服务时间信息或服务距离信息来确定某邻区其是否为推荐的候选目标小区或其对应的推荐度。
其中,服务时间信息包括:服务小区/邻区的服务时长和服务时间范围;服务距离信息包括:UE与服务小区/邻区的参考点之间的距离及距离变化。
服务时间信息满足下述条件的为推荐的候选目标小区,否则为不推荐的候选目标小区:此邻区的服务时长大于候选目标小区服务时长的门限值;此邻区的服务时间范围与服务小区的服务时间范围之间存在重叠。
服务距离信息满足下述条件的为推荐的候选目标小区,否则为不推荐的候选目标 小区:UE与此邻区的参考点之间的距离的最小距离小于此邻区对应的参考距离;当UE与服务小区的参考点之间的距离小于服务小区的参考距离时,UE与此邻区的参考点之间的距离的小于此邻区对应的参考距离。
其中,所述参考点可以为小区中心,参考距离可以为小区半径。
在一个实施例中,邻区对应的推荐度可根据服务时长或UE与邻区的参考点之间的最小距离与参考距离之间的比值获得,不推荐的候选目标小区推荐度为0。
在一个实施例中,UE可以根据自身的位置信息和服务小区/邻区的覆盖信息获取服务小区/邻区的服务时间信息:UE可以根据自身的位置、服务小区/邻区的覆盖范围和移动方向来判断自身所在位置进入此邻区覆盖的时刻和离开服务小区/此邻区覆盖的时刻,获得服务时间范围;UE可以根据自身的位置、服务小区/邻区的参考点和参考点的移动方向和速度来判断自身位置与参考点之间的距离小于参考距离的起止时刻,获得服务时间范围。其中参考点可以为小区中心,参考距离可以为小区半径。其中,服务时长,可以通过服务时间范围获得。
在一个实施例中,辅助信息可以周期性上报,也可以通过测量事件触发上报,还可以包含在测量报告中。
在一个实施例中,UE可以根据网络指示确定是否需要上报辅助信息。UE上报的辅助信息的内容可以由协议规定也可以由网络配置。例如,若网络指示UE上报的辅助信息内容包括:某邻区是否推荐配置为候选目标小区的指示或某邻区配置为候选目标小区的推荐度,网络需要指示需要UE判定的邻区ID和与此邻区对应的卫星标识。
在一个实施例中,所述服务小区/邻区的覆盖信息,包括参考点和参考距离信息,可以通过星历信息获取也可以通过网络下发给UE。网络可以通过广播或专用信令的方式下发小区覆盖信息。
在一个实施例中,所述门限值和所述网络指示可以由网络配置,包含在测量配置中,通过RRCReconfiguration消息发送给UE。或者所述门限值也可以在协议中规定。
在一个实施例中,网络根据UE上报的辅助信息,为此UE配置合适的CHO候选目标小区。其中:网络可以根据辅助信息中的推荐邻区ID,配置CHO候选目标小区,网络可以优先配置推荐邻区中的小区为候选目标小区;
或者,网络可以根据辅助信息中的不推荐邻区ID,配置CHO候选目标小区,网络可以在配置候选目标小区时排除不推荐的邻区;
或者,网络可以根据辅助信息中某邻区是否推荐配置为候选目标小区的指示,配置候选目标小区。对于推荐的小区,网络优先配置其为候选小区,对于不推荐的小区,网络可以不选择其为候选小区;
或者,网络可以根据邻区的推荐度,配置候选目标小区。网络可以选择推荐度大于门限值的邻区为候选目标小区,并可以根据不同的推荐度配置合适的CHO执行条件,让UE更有可能接入推荐度高的小区。
下面结合图6介绍3个具体实施例,以图6中的UE1为例进行说明。
实施例1:
协议规定UE上报的辅助信息为推荐配置为候选目标小区的邻区ID;
网络通过RRC重配消息指示UE需要上报辅助信息,辅助网络确定CHO候选目标小区,并配置门限值为0。
UE接收到网络发送的RRC重配消息,获取自身所在的位置。
UE根据网络广播的小区的覆盖信息,计算图中邻区1,2,3,5,6,7覆盖UE所在位置的起止时刻即服务时间范围以及相应的服务时长、和服务小区4覆盖UE所在位置的结束时刻。
对于UE所在位置,邻区3,7的服务时长大于0,且邻区3,7的服务时间范围与服务小区4之间的服务时间之间存在重叠,所以邻区3和7推荐配置为候选邻区。
UE上报邻区3和7的小区ID和对应的服务卫星的标识。
网络根据UE上报的邻区3和7的ID和对应的服务卫星的标识,给此UE配置CHO命令,其候选目标小区为邻区3和邻区7。
实施例2:
协议规定UE上报的辅助信息为不推荐配置为候选目标小区的邻区ID;
网络通过RRC重配消息指示UE需要上报辅助信息,辅助网络确定CHO候选目标小区。
UE接收到网络发送的RRC重配消息,获取自身所在的位置。
UE根据网络广播的小区的覆盖信息,服务小区与邻区对应的参考点均为小区中心,计算图中邻区1,2,3,5,6,7和服务小区4的服务距离信息。
对于UE所在位置,随着卫星的移动,UE所在位置与邻区1,2,5,6的小区中心的距离均不会大于对应的小区半径,所以邻区1,2,5,6不推荐配置为候选邻区。
UE上报邻区1,2,5,6的小区ID和对应的服务卫星的标识。
网络根据UE上报的邻区1,2,5,6的小区ID和对应的服务卫星的标识,给此UE配置CHO命令,排除邻区1,2,5,6,则其候选目标小区为邻区3和邻区7。
实施例3:
网络通过RRC重配消息指示UE需要上报辅助信息,辅助网络确定CHO候选目标小区,并配置门限值为0。并指示UE上报的辅助信息为:邻区3,5,6,7为候选目标小区的推荐度。
UE接收到网络发送的RRC重配消息,获取自身所在的位置。
UE根据网络广播的小区的覆盖信息,计算图中邻区3,5,6,7覆盖UE所在位置的起止时刻即服务时间范围以及相应的服务时长、和服务小区4覆盖UE1所在位置的结束时刻。
对于UE所在位置,则有:
邻区5,6的服务时长等于0,则邻区5,6的推荐度为0.
邻区3,7的服务时长分别为4和10,且邻区3,7的服务时间范围与服务小区4之间的服务时间之间存在重叠。根据UE实现,计算获得邻区3,7的推荐度分别为40%和100%。
UE上报邻区3,5,6,7的推荐度。
网络根据UE上报的邻区3,5,6,7的推荐度,给此UE配置CHO命令,其候选目标小区为邻区3和邻区7。邻区3的CHO执行条件为邻区3的信号强度高于服务小区3dB。邻区7的CHO执行条件为邻区7的信号强度高于服务小区1dB。
本公开的实施例还提出一种电子设备,包括:处理器;用于存储处理器可执行指令的存储器;其中,所述处理器被配置为实现上述的候选小区确定方法。
本公开的实施例还提出一种计算机可读存储介质,其上存储有计算机程序,其特征在于,该程序被处理器执行时实现上述的候选小区确定中的步骤。
图7是根据本公开的实施例示出的一种用于候选小区确定的装置700的示意框 图。例如,装置700可以是移动电话,计算机,数字广播终端,消息收发设备,游戏控制台,平板设备,医疗设备,健身设备,个人数字助理等。
参照图7,装置700可以包括以下一个或多个组件:处理组件702,存储器704,电源组件706,多媒体组件708,音频组件710,输入/输出(I/O)的接口712,传感器组件714,以及通信组件716。
处理组件702通常控制装置700的整体操作,诸如与显示,电话呼叫,数据通信,相机操作和记录操作相关联的操作。处理组件702可以包括一个或多个处理器720来执行指令,以完成上述的候选小区确定方法的全部或部分步骤。此外,处理组件702可以包括一个或多个模块,便于处理组件702和其他组件之间的交互。例如,处理组件702可以包括多媒体模块,以方便多媒体组件708和处理组件702之间的交互。
存储器704被配置为存储各种类型的数据以支持在装置700的操作。这些数据的示例包括用于在装置700上操作的任何应用程序或方法的指令,联系人数据,电话簿数据,消息,图片,视频等。存储器704可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,如静态随机存取存储器(SRAM),电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),可编程只读存储器(PROM),只读存储器(ROM),磁存储器,快闪存储器,磁盘或光盘。
电源组件706为装置700的各种组件提供电力。电源组件706可以包括电源管理***,一个或多个电源,及其他与为装置700生成、管理和分配电力相关联的组件。
多媒体组件708包括在所述装置700和用户之间的提供一个输出接口的屏幕。在一些实施例中,屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板,屏幕可以被实现为触摸屏,以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界,而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中,多媒体组件708包括一个前置摄像头和/或后置摄像头。当装置700处于操作模式,如拍摄模式或视频模式时,前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜***或具有焦距和光学变焦能力。
音频组件710被配置为输出和/或输入音频信号。例如,音频组件710包括一个麦克风(MIC),当装置700处于操作模式,如呼叫模式、记录模式和语音识别模 式时,麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器704或经由通信组件716发送。在一些实施例中,音频组件710还包括一个扬声器,用于输出音频信号。
I/O接口712为处理组件702和***接口模块之间提供接口,上述***接口模块可以是键盘,点击轮,按钮等。这些按钮可包括但不限于:主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件714包括一个或多个传感器,用于为装置700提供各个方面的状态评估。例如,传感器组件714可以检测到装置700的打开/关闭状态,组件的相对定位,例如所述组件为装置700的显示器和小键盘,传感器组件714还可以检测装置700或装置700一个组件的位置改变,用户与装置700接触的存在或不存在,装置700方位或加速/减速和装置700的温度变化。传感器组件714可以包括接近传感器,被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件714还可以包括光传感器,如CMOS或CCD图像传感器,用于在成像应用中使用。在一些实施例中,该传感器组件714还可以包括加速度传感器,陀螺仪传感器,磁传感器,压力传感器或温度传感器。
通信组件716被配置为便于装置700和其他设备之间有线或无线方式的通信。装置700可以接入基于通信标准的无线网络,如WiFi,2G或3G,4G LTE、5G NR或它们的组合。在一个示例性实施例中,通信组件716经由广播信道接收来自外部广播管理***的广播信号或广播相关信息。在一个示例性实施例中,所述通信组件716还包括近场通信(NFC)模块,以促进短程通信。例如,在NFC模块可基于射频识别(RFID)技术,红外数据协会(IrDA)技术,超宽带(UWB)技术,蓝牙(BT)技术和其他技术来实现。
在示例性实施例中,装置700可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现,用于执行上述候选小区确定方法。
在示例性实施例中,还提供了一种包括指令的非临时性计算机可读存储介质,例如包括指令的存储器704,上述指令可由装置700的处理器720执行以完成上述候选小区确定方法。例如,所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的公开后,将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化,这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的,本公开的真正范围和精神由下面的权利要求指出。
应当理解的是,本公开并不局限于上面已经描述并在附图中示出的精确结构,并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上对本公开实施例所提供的方法和装置进行了详细介绍,本文中应用了具体个例对本公开的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本公开的方法及其核心思想;同时,对于本领域的一般技术人员,依据本公开的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本公开的限制。

Claims (27)

  1. 一种候选小区确定方法,其特征在于,被终端执行,所述方法包括:
    向网络侧设备发送辅助信息,所述辅助信息用于辅助网络侧设备确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
  2. 根据权利要求1所述的方法,其特征在于,所述辅助信息,包括以下信息中的一种或多种:
    推荐作为候选小区的至少一个邻小区的标识;
    不推荐作为候选小区的至少一个邻小区的标识。
  3. 根据权利要求1或2所述的方法,其特征在于,所述方法还包括:
    接收所述网络侧设备发送的指定标识;
    所述辅助信息包括以下至少一项:所述指定标识所指示的邻小区是否推荐作为候选小区、所述指定标识所指示的邻小区推荐作为候选小区的推荐度。
  4. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    确定以下至少一项参考信息:
    邻小区能为所述终端提供服务的第一时间信息、所述终端当前的服务小区能为所述终端提供服务的第二时间信息、邻小区对应的第一参考点与所述终端之间的距离信息、用于指示邻小区覆盖范围的第一距离阈值、所述终端当前的服务小区对应的第二参考点与所述终端之间的距离信息、用于指示服务小区覆盖范围的第二距离阈值;
    根据所述至少一项参考信息确定邻小区的推荐信息,所述推荐信息包括以下至少一个:所述邻小区是否推荐作为候选小区、邻小区推荐作为候选小区的推荐度。
  5. 根据权利要求4所述的方法,其特征在于,所述第一时间信息基于所述邻小区的覆盖范围变化信息确定,所述第二时间信息基于所述服务小区的覆盖范围变化信息确定。
  6. 根据权利要求5所述的方法,其特征在于,所述第一时间信息为所述终端与所述第一参考点之间的距离小于所述第一距离阈值的时间信息;
    所述第二时间信息为所述终端与所述服务小区对应的第二参考点的距离小于第二阈值的时间信息。
  7. 根据权利要求4所述的方法,其特征在于,所述根据所述至少一项参考信息确定邻小区的推荐信息,包括:
    响应于所述第一时间信息与所述第二时间信息不存在交集,确定不推荐所述邻小区作为候选小区;
    或者,响应于所述第一时间信息与所述第二时间信息存在交集,确定推荐所述邻小区作为候选小区。
  8. 根据权利要求7所述的方法,其特征在于,所述方法还包括:
    基于所述第一时间信息确定所述邻小区能为所述终端提供服务的第一时长;
    响应于所述第一时长不大于预设时长阈值,确定不推荐所述邻小区作为候选小区;
    或者,响应于所述第一时长大于预设时长阈值,确定推荐所述邻小区作为候选小区。
  9. 根据权利要求4所述的方法,其特征在于,所述根据所述至少一项参考信息确定邻小区的推荐信息,包括:
    基于所述第一时间信息确定所述邻小区能为所述终端提供服务的第一时长;
    基于所述第一时长,确定所述邻小区推荐作为候选小区的推荐度;其中,所述推荐度与所述第一时长成正相关。
  10. 根据权利要求4所述的方法,其特征在于,所述根据所述至少一项参考信息确定邻小区的推荐信息,包括:
    基于邻小区对应的第一参考点与所述终端之间的距离信息,确定所述第一参考点与所述终端之间的最小距离;
    响应于所述最小距离不小于所述第一距离阈值,确定不推荐所述邻小区作为候选小区;
    或者,响应于所述最小距离大于所述第一距离阈值,确定推荐所述邻小区作为候选小区。
  11. 根据权利要求4所述的方法,其特征在于,所述根据所述至少一项参考信息确定邻小区的推荐信息:
    基于邻小区对应的第一参考点与所述终端之间的距离信息,确定所述第一参考点与所述终端之间的最小距离;
    基于所述最小距离,确定所述邻小区推荐作为候选小区的推荐度;所述推荐度与所述最小距离成负相关。
  12. 根据权利要求11所述的方法,其特征在于,所述推荐度为所述第一距离阈值与所述最小距离的比值。
  13. 一种候选小区确定方法,其特征在于,被网络侧设备执行,所述方法包括:
    接收终端发送的辅助信息;
    基于所述辅助信息确定候选小区,所述候选小区为所述网络侧设备配置给所述终 端的CHO候选小区。
  14. 根据权利要求13所述的方法,其特征在于,所述基于所述辅助信息确定候选小区,包括:
    响应于所述辅助信息中包括推荐作为候选小区的邻小区的标识,将所述邻小区确定为候选小区;
    或者,
    响应于所述辅助信息中包括不推荐作为候选小区的邻小区的标识,排除将所述邻小区确定为候选小区。
  15. 根据权利要求13所述的方法,其特征在于,所述基于所述辅助信息确定候选小区,包括:
    响应于所述辅助信息中包括邻小区推荐作为候选小区的推荐度,基于所述推荐度确定候选小区。
  16. 根据权利要求13或14中任一项所述的方法,其特征在于,所述方法还包括:
    向所述终端发送指定标识,所述指定标识用于指示所述终端将以下至少一项携带在辅助信息中:所述指定标识所指示的邻小区是否推荐作为候选小区、所述指定标识所指示的邻小区推荐作为候选小区的推荐度。
  17. 根据权利要求15所述的方法,其特征在于,所述基于所述推荐度确定候选小区,包括:
    将所述推荐度高于预设推荐度阈值的邻小区确定为候选小区。
  18. 根据权利要求15所述的方法,其特征在于,所述基于所述推荐度确定候选小区,包括:
    响应于所述推荐度指示将所述邻小区推荐作为候选小区,基于所述推荐度确定该候选小区对应的切换执行条件;其中,所述切换执行条件被终端所满足的难度与所述推荐度成负相关。
  19. 一种候选小区确定装置,其特征在于,应用于终端,所述装置包括:
    辅助信息发送模块,被配置为向网络侧设备发送辅助信息,所述辅助信息用于辅助网络侧设备确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
  20. 根据权利要求19所述的装置,其特征在于,所述辅助信息,包括以下信息中的一种或多种:
    推荐作为候选小区的至少一个邻小区的标识;
    不推荐作为候选小区的至少一个邻小区的标识。
  21. 根据权利要求19或20所述的装置,其特征在于,所述装置还包括:
    标识接收模块,被配置为接收所述网络侧设备发送的指定标识;
    所述辅助信息包括以下至少一项:所述指定标识所指示的邻小区是否推荐作为候选小区、所述指定标识所指示的邻小区推荐作为候选小区的推荐度。
  22. 根据权利要求19所述的装置,其特征在于,所述装置还包括:
    参考信息确定模块,被配置为确定以下至少一项参考信息:
    邻小区能为所述终端提供服务的第一时间信息、所述终端当前的服务小区能为所述终端提供服务的第二时间信息、邻小区对应的第一参考点与所述终端之间的距离信息、用于指示邻小区覆盖范围的第一距离阈值、所述终端当前的服务小区对应的第二参考点与所述终端之间的距离信息、用于指示服务小区覆盖范围的第二距离阈值;
    推荐信息确定模块,被配置为根据所述至少一项参考信息确定邻小区的推荐信息,所述推荐信息包括以下至少一个:所述邻小区是否推荐作为候选小区、邻小区推荐作为候选小区的推荐度。
  23. 一种候选小区确定装置,其特征在于,应用于网络侧设备,所述装置包括:
    辅助信息接收模块,被配置为接收终端发送的辅助信息;
    候选小区确定模块,被配置为基于所述辅助信息确定候选小区,所述候选小区为所述网络侧设备配置给所述终端的CHO候选小区。
  24. 根据权利要求23所述的装置,其特征在于,所述候选小区确定模块,具体被配置为:
    响应于所述辅助信息中包括推荐作为候选小区的邻小区的标识,将所述邻小区确定为候选小区;或者,响应于所述辅助信息中包括不推荐作为候选小区的邻小区的标识,排除将所述邻小区确定为候选小区。
  25. 根据权利要求23所述的装置,其特征在于,所述候选小区确定模块,具体被配置为:
    响应于所述辅助信息中包括邻小区推荐作为候选小区的推荐度,基于所述推荐度确定候选小区。
  26. 一种电子设备,其特征在于,包括:
    处理器;
    用于存储处理器可执行指令的存储器;
    其中,所述处理器被配置为实现权利要求1至18中任一项所述的候选小区确定方 法。
  27. 一种计算机可读存储介质,其上存储有计算机程序,其特征在于,该程序被处理器执行时实现权利要求1至18中任一项所述的候选小区确定中的步骤。
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