WO2022205202A1 - Procédé et appareil de détermination de cellule candidate - Google Patents

Procédé et appareil de détermination de cellule candidate 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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WIPO (PCT)
Prior art keywords
cell
terminal
information
candidate cell
candidate
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PCT/CN2021/084718
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English (en)
Chinese (zh)
Inventor
熊艺
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北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2021/084718 priority Critical patent/WO2022205202A1/fr
Priority to CN202180000926.9A priority patent/CN115428522A/zh
Publication of WO2022205202A1 publication Critical patent/WO2022205202A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection 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

La présente divulgation concerne un procédé et un appareil de détermination de cellule candidate. Le procédé de détermination de cellule candidate comprend : envoi d'informations d'assistance à un dispositif côté réseau, les informations d'assistance étant utilisées pour aider le dispositif côté réseau à déterminer une cellule candidate, et la cellule candidate étant une cellule candidate CHO configurée pour un terminal par le dispositif côté réseau. Selon la présente divulgation, le terminal peut déterminer les informations d'assistance pour aider le dispositif côté réseau à déterminer la cellule candidate, et envoyer les informations d'assistance au dispositif côté réseau, de sorte que le dispositif côté réseau puisse déterminer la cellule candidate en se référant aux informations d'assistance. Par rapport au dispositif côté réseau, il est possible de déterminer directement et volontairement la cellule candidate, la présente demande peut améliorer la précision de la cellule candidate déterminée, éviter le gaspillage de ressources et garantir la qualité de communication du terminal.
PCT/CN2021/084718 2021-03-31 2021-03-31 Procédé et appareil de détermination de cellule candidate WO2022205202A1 (fr)

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