WO2019218358A1 - 小区重选方法、装置及存储介质 - Google Patents

小区重选方法、装置及存储介质 Download PDF

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Publication number
WO2019218358A1
WO2019218358A1 PCT/CN2018/087540 CN2018087540W WO2019218358A1 WO 2019218358 A1 WO2019218358 A1 WO 2019218358A1 CN 2018087540 W CN2018087540 W CN 2018087540W WO 2019218358 A1 WO2019218358 A1 WO 2019218358A1
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Prior art keywords
cell
target
target type
duration
type
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PCT/CN2018/087540
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English (en)
French (fr)
Inventor
洪伟
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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 US17/054,024 priority Critical patent/US20210250837A1/en
Priority to CN202111077204.1A priority patent/CN113630826B/zh
Priority to PCT/CN2018/087540 priority patent/WO2019218358A1/zh
Priority to CN201880000442.2A priority patent/CN108702672B/zh
Publication of WO2019218358A1 publication Critical patent/WO2019218358A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0007—Control or signalling for completing the hand-off for multicast or broadcast services, e.g. MBMS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/324—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/36—Reselection control by user or terminal equipment
    • H04W36/365—Reselection control by user or terminal equipment by manual user interaction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of wireless communications technologies, and in particular, to a cell reselection method, apparatus, and storage medium.
  • the cell reselection is a process in which the user equipment (English: User Equipment; UE for short) selects an optimal cell to provide communication services for itself in the idle mode.
  • the user equipment English: User Equipment; UE for short
  • the UE needs to measure its own neighbor cell, and determines the cell that the UE needs to reselect from the neighbor cell of the UE according to the measurement result.
  • the probability that the UE reselects to a suitable cell is low.
  • the present disclosure provides a cell reselection method, apparatus, and storage medium, which can improve the probability of a UE reselecting to a suitable cell.
  • a cell reselection method including:
  • Target type Searching for a target type of cell when the user equipment UE needs to perform cell reselection, where the target type is determined based on a motion speed state of the UE;
  • the first target cell in the neighbor cell of the UE is reselected, and the neighbor cell of the UE does not include the cell of the target type.
  • the target type is a cell type of a high-speed rail private network.
  • the target type is a cell type of a non-high-speed rail private network.
  • the method further includes: before searching for the cell of the target type, determining a motion speed state of the UE according to a number of times that the UE performs cell reselection within a second target duration.
  • the method further includes: before searching for the cell of the target type, determining a motion speed state of the UE according to a number of times that the UE performs cell handover within a third target duration.
  • the method further includes: before searching for the cell of the target type, determining a motion speed state of the UE according to a distance that the UE moves within a fourth target duration.
  • the method further includes: when searching for the cell of the target type within the first target duration, reselecting to the cell of the target type.
  • reselecting to the cell of the target type including:
  • the second target cell is according to a pair
  • the measurement results of at least two cells of the target type are determined.
  • the first target cell is determined according to a measurement result of a neighbor cell of the UE.
  • the method further includes: receiving high layer signaling sent by the base station; determining the first target duration according to the indication of the high layer signaling.
  • the method further includes determining the first target duration according to the motion speed state of the UE.
  • the method further includes: determining, by the set of durations, the first target duration, where the duration set includes at least one duration of searching for a target type of cell specified by a communication protocol.
  • a cell reselection apparatus including:
  • a search module configured to search for a target type of cell when the user equipment UE needs to perform cell reselection, where the target type is determined based on a motion speed state of the UE;
  • a first reselecting module configured to reselect to a first target cell in a neighboring cell of the UE when a cell of the target type is not searched within a first target duration, where the neighbor cell of the UE does not include A cell of the target type.
  • the target type is a cell type of a high-speed rail private network.
  • the target type is a cell type of a non-high-speed rail private network.
  • the device further includes a first motion speed state determining module, where the first motion speed state determining module is configured to: according to the UE, within a second target duration, before searching for the target type of cell The number of times the cell reselection is performed determines the motion speed state of the UE.
  • the device further includes a second motion speed state determining module, where the second motion speed state determining module is configured to: according to the UE, within a third target duration, before searching for the target type of cell The number of times the cell handover is performed determines the motion speed state of the UE.
  • the device further includes a third motion speed state determining module, where the third motion speed state determining module is configured to: according to the UE, within a fourth target duration, before searching for the target type of cell The distance moved determines the state of motion of the UE.
  • the device further includes a second reselection module, where the second reselection module is configured to reselect the target type when searching for the target type of cell within the first target duration Community.
  • the second reselection module includes a reselection submodule, where the reselection submodule is configured to: when searching for at least two cells of the target type within the first target duration, Selecting a second target cell in at least two cells of the target type, the second target cell being determined according to a measurement result of at least two cells of the target type.
  • the first target cell is determined according to a measurement result of a neighbor cell of the UE.
  • the device further includes a receiving module and a first duration determining module, where:
  • the receiving module is configured to receive high layer signaling sent by the base station
  • the first duration determining module is configured to determine the first target duration according to the indication of the high layer signaling.
  • the device further includes a second duration determining module, where the second duration determining module is configured to: determine the first target duration according to the motion speed state of the UE.
  • the device further includes a third duration determining module, where the third duration determining module is configured to: determine the first target duration from the set of durations, where the set of durations includes at least one pair specified by a communication protocol The length of time that the target type of cell searches.
  • a user equipment including:
  • a memory for storing instructions executable by the processor
  • processor is configured to:
  • Target type Searching for a target type of cell when the user equipment UE needs to perform cell reselection, where the target type is determined based on a motion speed state of the UE;
  • the first target cell in the neighbor cell of the UE is reselected, and the neighbor cell of the UE does not include the cell of the target type.
  • a computer readable storage medium having stored therein a computer program capable of implementing the first aspect as described above when executed by the processing component A cell reselection method as described.
  • the cell of the target type is searched, and when the cell of the target type is not searched for within the first target duration, the UE selects the first target cell in the neighbor cell of the UE, where the target The type is determined based on the motion speed state of the UE, and the neighbor cell of the UE does not include the cell of the target type, so that the UE can perform cell reselection according to its own motion speed state, and in some cases, the UE motion speed state and the UE are heavy. It is more appropriate to select which cell is selected. Therefore, performing cell reselection by the UE in combination with its own motion speed state can improve the probability that the UE reselects to a suitable cell.
  • FIG. 1 is a schematic diagram of an implementation environment, according to an exemplary embodiment.
  • FIG. 2 is a flowchart of a cell reselection method according to an exemplary embodiment.
  • FIG. 3 is a flowchart of a cell reselection method according to an exemplary embodiment.
  • FIG. 4 is a block diagram of a cell reselection apparatus according to an exemplary embodiment.
  • FIG. 5 is a block diagram of a cell reselection apparatus according to an exemplary embodiment.
  • FIG. 6 is a block diagram of a cell reselection apparatus according to an exemplary embodiment.
  • the user equipment (English: User Equipment; UE) located on the high-speed rail is in a high-speed motion state
  • the UE located on the high-speed rail is likely to move from the signal coverage of one cell to another in a short time.
  • Signal coverage which causes the UE on the high-speed rail to perform frequent cell reselection and cell handover.
  • the frequent cell reselection and cell handover of the UE not only increases the power consumption of the UE, but also the communication quality band of the UE. Come to a negative impact.
  • a high-speed-railway dedicated network can be deployed along the high-speed rail.
  • the high-speed rail private network can baseband the baseband unit and the radio frequency. The unit is separated and the radio frequency unit is remotely located.
  • the high-speed rail private network can deploy multiple radio remote units (English: Radio Remote Unit; RRU) at different locations along the high-speed rail. The plurality of RRUs serve a cell of the same high-speed rail private network.
  • RRU Radio Remote Unit
  • the high-speed rail private network can remotely remove the radio frequency unit of the base station, the signal coverage of the cell in the high-speed rail private network is wider, so that the UE located on the high-speed rail can frequently avoid cell reselection and cell handover. .
  • the UE not located on the high-speed rail may also reside in the cell of the high-speed rail private network, which may cause congestion of the high-speed rail private network, thereby affecting the UE located on the high-speed railway. Communication quality.
  • the UE A suitable cell may be a cell of a high-speed rail private network, and for a UE not located on the high-speed rail, the suitable cell may be a cell of a non-high-speed rail dedicated network.
  • the UE when performing cell reselection, the UE may perform measurement on its own neighbor cell (English: measurement), and determine, according to the measurement result, the cell that the UE needs to reselect from the neighbor cell of the UE.
  • the probability that the UE reselects to a suitable cell is low.
  • the embodiment of the present disclosure provides a cell reselection method, which can improve a probability that a UE reselects to a suitable cell.
  • the UE may search for a cell of a target type when cell reselection is required, where the target type is determined based on a motion speed state of the UE, and the UE does not search within the first target duration.
  • the UE may reselect the first target cell in the neighbor cell, where the neighbor cell of the UE does not include the cell of the target type, so that the UE can perform cell reselection according to its own motion speed state.
  • the UE motion speed state may reflect whether the UE is located on the high-speed rail. Therefore, the UE motion speed state is closely related to the cell to which the UE is reselected. Therefore, in the cell reselection method provided by the embodiment of the present disclosure, the UE combines its own Performing cell reselection in the motion speed state can increase the probability that the UE reselects to the appropriate cell.
  • FIG. 1 is a schematic diagram of an implementation environment involved in a cell reselection method according to an embodiment of the present disclosure.
  • the implementation environment may include a UE 101 and at least one base station 102 (only two are shown in FIG. 1).
  • Base station 102 wherein, when performing cell reselection, the UE 101 may search for a cell served by each of the at least one base station 102, and the at least one base station 102 may include a base station in a high-speed rail private network and/or Base stations in a non-high-speed rail private network.
  • FIG. 2 is a flowchart of a cell reselection method according to an exemplary embodiment. As shown in FIG. 2, the cell reselection method is used in the UE 101 shown in FIG. 1. The cell reselection method includes the following. step.
  • Step 201 When cell reselection is required, the UE searches for a cell of a target type, where the target type is determined based on a motion speed state of the UE.
  • Step 202 When no cell of the target type is searched for within the first target duration, the UE reselects to the first target cell in the neighbor cell, where the neighbor cell of the UE does not include the cell of the target type.
  • the cell reselection method searches for a cell of a target type when the UE needs to perform cell reselection, and reselects when the cell of the target type is not searched for within the first target duration.
  • a first target cell in the neighboring cell of the UE where the target type is determined based on a motion speed state of the UE, and the neighbor cell of the UE does not include the cell of the target type, so that the UE can perform the motion speed state in combination with the UE.
  • the UE motion speed state is closely related to which cell the UE reselects to the cell. Therefore, performing cell reselection by the UE in combination with its own motion speed state may improve the probability of the UE reselecting to the appropriate cell.
  • FIG. 3 is a flowchart of a cell reselection method according to an exemplary embodiment. As shown in FIG. 3, the cell reselection method is used in the UE 101 shown in FIG. 1. The cell reselection method includes the following. step.
  • Step 301 When cell reselection is required, the UE determines its own motion speed state.
  • the UE can determine its own motion speed state.
  • the motion speed state of the UE may include a high mobility state (English: high mobility state) and a non-high speed motion state, wherein definitions of the high speed motion state and the non-high speed motion state are disclosed in the 3GPP communication standard. The embodiments of the present disclosure are not described herein again. It should be noted that when the UE is located on the high-speed rail, the UE is usually in a high-speed motion state, and when the UE is not located on the high-speed rail, the UE is usually in a non-high-speed motion state.
  • Embodiments of the present disclosure provide three exemplary ways in which a UE determines its own motion speed state, where:
  • the UE determines its own motion speed state according to the frequency of its own cell reselection.
  • the UE may record the time at which the cell reselection is performed after each cell reselection.
  • the UE may acquire the number of times the UE performs cell reselection within the second target duration before the current moment, where the current moment is also a technical process performed by the UE to determine the state of the motion speed of the UE.
  • the UE may characterize the frequency at which the UE performs cell reselection according to the obtained number of reselections of the cell, and then determine the motion speed state of the UE according to the obtained number of times of reselection of the cell.
  • the UE may locally store a correspondence table between the number of cell reselection times and the UE motion speed state, and the UE may query the correspondence relationship table according to the obtained number of reselections of the cell, thereby obtaining a motion speed state of the UE.
  • the UE when the UE is in a high-speed motion state, the number of times that the UE performs cell reselection in the second target duration is large, and when the UE is in the non-high-speed motion state, the UE performs the cell reselection in the second target duration. less.
  • the UE determines its own motion speed state according to the frequency of its own cell handover.
  • Cell handover refers to the UE completing the migration of the radio link connection from the source cell to the target cell.
  • the cell handover is a basic technical means for ensuring seamless mobile communication services, which can exchange between the radio channels of different cells. The call in the middle without interrupting it.
  • the UE may record the time when the cell handover is performed after each cell handover.
  • the UE may acquire the number of times the UE performs the cell handover within the third target duration before the current moment, where the current moment is also a technical process performed by the UE to determine the state of the motion speed of the UE.
  • the UE may characterize the frequency at which the UE performs cell handover according to the obtained number of times of the cell handover, and then determine the motion speed state of the UE according to the acquired number of times of the cell handover.
  • the UE may locally store a correspondence table between the number of cell handovers and the state of the UE motion, and the UE may query the correspondence table according to the obtained number of times of the cell handover, thereby obtaining a motion speed state of the UE.
  • the UE when the UE is in a high-speed motion state, the UE performs more cell handovers within the second target duration, and when the UE is in a non-high-speed motion state, the UE performs less cell handover within the second target duration.
  • the UE determines its own motion speed state according to the distance that the UE moves within the fourth target duration.
  • the UE may acquire its own geographic location every fourth target duration.
  • the UE may start its own Global Positioning System (GPS) component every fourth target duration and use the The GPS component gets its own geographic location.
  • GPS Global Positioning System
  • the UE may acquire the geographic location acquired by the UE twice before the current time, and determine the distance that the UE moves within the fourth target duration according to the geographical position acquired by the neighboring two times. Then, the UE can determine its own motion speed state according to the distance that it moves within the fourth target duration, that is, the current moment is the moment when the UE performs the technical process of determining the motion speed state of the UE.
  • the UE may locally store a correspondence table between the mobile distance and the UE motion speed state, and the UE may query the correspondence relationship table according to the determined distance that the UE moves within the fourth target duration, thereby obtaining the motion speed state of the UE.
  • the UE moves a longer distance in the fourth target duration, and when the UE is in the non-high-speed motion state, the UE moves in a shorter distance within the fourth target duration.
  • the foregoing second target duration, the third target duration, and the fourth target duration may be configured by the base station by using the high layer signaling, or may be specified by the communication protocol, or may be determined by the UE, and the embodiment of the present disclosure is This is not specifically limited.
  • Step 302 The UE searches for a cell of a target type, where the target type is determined based on a motion speed state of the UE.
  • the UE may determine the type of the cell to be searched according to the state of the motion speed of the UE (that is, the target type described above), where the UE to be searched needs to be reselected as much as possible. A suitable cell to arrive.
  • the target type may be a cell type of the high-speed rail private network
  • the motion speed state of the UE is In the non-high-speed motion state, it is indicated that the UE is likely not to be located on the high-speed rail.
  • the target type may be a cell type of the non-high-speed rail private network.
  • first speed threshold and the second speed threshold may be the same or different, and the first speed threshold and the second speed threshold may be configured by the base station by using high layer signaling, or may be configured by a communication protocol.
  • the stipulations are also determined by the UE. The embodiments of the present disclosure do not specifically limit this.
  • the UE may search for the target type of cell.
  • the base station may broadcast the type information of the cell served by the base station, where the type information is used to indicate whether the cell served by the base station is a cell of the high-speed rail private network, and the UE may receive the type information broadcast by the at least one base station. And searching for the presence or absence of the target type information from the received type information, wherein the target type information is used to indicate that the cell served by the base station is a cell of the high-speed rail private network. If the UE searches for the target type information from the received type information, it means that the UE searches for the target type of cell, and the target type of cell is the cell indicated by the target type information, if the UE does not receive the received type. Searching for the target type information in the information means that the UE does not search for a cell of the target type.
  • Step 303 When searching for a cell of the target type within the first target duration, the UE reselects the cell of the target type.
  • the UE When the UE searches for the cell of the target type within the first target duration, it indicates that the cell of the target type exists around the UE. At this time, the UE can reselect the cell of the target type, thereby ensuring that the UE is in the process of cell reselection. Ability to reselect to the appropriate cell.
  • the suitable cell that is, the cell of the target type is a cell of the high-speed rail private network
  • the suitable cell that is, The cell of this target type is a cell of a non-high-speed rail dedicated network.
  • the UE searches for cells of at least two target types within the first target duration, that is, it is highly probable that there are at least two target types of cells around the UE.
  • the UE may perform measurement on the cells of the at least two target types, and determine the second target cell according to the measurement result, in the process of cell reselection. The UE may reselect to the second target cell.
  • the measurement performed by the UE on the cells of the at least two target types may be the same frequency measurement, or may be an inter-frequency measurement, when the UE performs the same-frequency measurement on the cells of the at least two target types,
  • the UE may measure the RSRP of the cell of each target type in the cells of the at least two target types, and determine the second target cell according to the RSRP of the cells of the at least two target types, where the UE is configured for the at least two target types.
  • the measurement by the cell is the inter-frequency measurement
  • the UE may acquire the frequency point information of the cell of the at least two target types, and determine the cell of the target type with the highest priority of the frequency information as the second target cell.
  • the embodiment of the present disclosure may limit the duration of the UE searching for the target type of cell (that is, the first target duration), so that the UE searches only within the first target duration.
  • the UE when the UE searches for a cell of the target type within the first target duration, the UE may reselect the cell of the target type, when the UE does not search for the target type of cell within the first target duration
  • the UE may reselect to the cell of the non-target type, wherein, according to the above description, when the UE is located on the high-speed rail, the non-target type cell is a cell of the non-high-speed rail private network, when the UE is not located on the high-speed rail, the The non-target type cell is a cell of a high-speed rail private network.
  • the UE can reselect to the appropriate cell (that is, the target type of cell) as much as possible, and on the other hand, it can avoid the occurrence of the situation that the UE has no cell to camp.
  • the base station may send the high layer signaling to the UE, where the high layer signaling is used to indicate the first target duration.
  • the UE may determine according to the indication of the high layer signaling. The first target duration.
  • the UE may determine the first target duration according to its own motion speed state. For example, the UE may locally store a correspondence table between the motion speed state and the first target duration, and the UE may perform the step according to the step.
  • the motion speed state determined in 301 queries the correspondence table to determine the first target duration.
  • the first target duration is shorter, because the faster the UE moves, the more the number of cells that the UE passes in the same time, and therefore, the UE It is possible to determine whether there is a cell of the target type around the UE by a search of a shorter duration.
  • the UE may determine the first target duration from the set of durations, where the set of durations includes a duration of at least one search for the target type of cells specified by the communication protocol.
  • Step 304 When no cell of the target type is searched within the first target duration, the UE reselects to the first target cell in the neighbor cell.
  • the UE may reselect the first target cell in the neighbor cell, where The neighbor cell of the UE does not include the cell of the target type, and the first target cell is determined by the UE according to the measurement result of the neighbor cell.
  • the measurement performed by the UE on the neighboring cell may also be the same-frequency measurement or the inter-frequency measurement.
  • the UE may measure the RSRP of each neighboring cell, and according to The RSRP of the neighboring cell determines the first target cell.
  • the UE may obtain the frequency point information of each neighboring cell, and determine the cell with the highest priority of the frequency information as the first cell. A target cell.
  • the cell reselection method searches for a cell of a target type when the UE needs to perform cell reselection, and reselects when the cell of the target type is not searched for within the first target duration.
  • a first target cell in the neighboring cell of the UE where the target type is determined based on a motion speed state of the UE, and the neighbor cell of the UE does not include the cell of the target type, so that the UE can perform the motion speed state in combination with the UE.
  • the UE motion speed state is closely related to which cell the UE reselects to the cell. Therefore, performing cell reselection by the UE in combination with its own motion speed state may improve the probability of the UE reselecting to the appropriate cell.
  • FIG. 4 is a block diagram of a cell reselection apparatus 400, which may be disposed in the UE 101 shown in FIG. 1, according to an exemplary embodiment.
  • the cell reselection apparatus 400 includes a search module 401 and a first reselection module 402.
  • the search module 401 is configured to search for a target type of cell when the user equipment UE needs to perform cell reselection, and the target type is determined based on the motion speed state of the UE.
  • the first reselection module 402 is configured to reselect the first target cell in the neighbor cell of the UE when the cell of the target type is not searched within the first target duration, and the neighbor cell of the UE does not include the target Type of cell.
  • the target type is a cell type of a high-speed rail private network.
  • the target type is a cell type of a non-high-speed rail private network.
  • the first target cell is determined according to a measurement result of a neighbor cell of the UE.
  • the embodiment of the present disclosure further provides another cell reselection device 500.
  • the cell reselection device 500 includes a first motion speed state determining module 403 in addition to the module included in the cell reselection device 400.
  • the second motion speed state determining module 404, the third motion speed state determining module 405, the second reselecting module 406, the receiving module 407, the first duration determining module 408, the second duration determining module 409, and the third duration determining module 410 At least one of the modules, FIG. 5 includes only the first motion speed state determining module 403, the second motion speed state determining module 404, the third motion speed state determining module 405, the second reselecting module 406, and the receiving module. 407. All modules of the first duration determining module 408, the second duration determining module 409, and the third duration determining module 410 are drawn as an example.
  • the first motion speed state determining module 403 is configured to determine a motion speed state of the UE according to the number of times the UE performs cell reselection within the second target duration before searching for the target type of cell.
  • the second motion speed state determining module 404 is configured to determine a motion speed state of the UE according to the number of times the UE performs cell handover within the third target duration before searching for the target type of cell.
  • the third motion speed state determining module 405 is configured to determine a motion speed state of the UE according to a distance that the UE moves within a fourth target duration before searching for a cell of the target type.
  • the second reselection module 406 is configured to reselect the cell of the target type when searching for the cell of the target type within the first target duration.
  • the second reselection module includes a reselection submodule, configured to: when searching for at least two cells of the target type within the first target duration, Reselecting to a second target cell in at least two cells of the target type, the second target cell being determined according to measurements of at least two cells of the target type.
  • the receiving module 407 is configured to receive high layer signaling sent by the base station.
  • the first duration determining module 408 is configured to determine the first target duration according to the indication of the high layer signaling.
  • the second duration determining module 409 is configured to determine the first target duration according to the motion speed state of the UE.
  • the third duration determining module 410 is configured to determine, according to the set of durations, the first target duration, where the duration set includes at least one duration of searching for a target type of cell specified by the communication protocol.
  • the cell reselection apparatus reselects to the cell of the target type when the cell reselection needs to be performed, and does not search for the cell of the target type within the first target duration.
  • a first target cell in the neighboring cell of the UE where the target type is determined based on a motion speed state of the UE, and the neighbor cell of the UE does not include the cell of the target type, so that the UE can perform the cell in combination with its own motion speed state.
  • the UE motion speed state is closely related to which cell the UE reselects to the cell. Therefore, performing cell reselection by the UE in combination with its own motion speed state may improve the probability of the UE reselecting to the appropriate cell.
  • FIG. 6 is a block diagram of a cell reselection apparatus 600, according to an exemplary embodiment.
  • device 600 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • device 600 can include one or more of the following components: processing component 602, memory 604, power component 606, multimedia component 608, audio component 610, input/output (I/O) interface 612, sensor component 614, And a communication component 616.
  • processing component 602 memory 604, power component 606, multimedia component 608, audio component 610, input/output (I/O) interface 612, sensor component 614, And a communication component 616.
  • Processing component 602 typically controls the overall operation of device 600, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • Processing component 602 can include one or more processors 620 to execute instructions to perform all or part of the steps of the above described methods.
  • processing component 602 can include one or more modules to facilitate interaction between component 602 and other components.
  • processing component 602 can include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602.
  • Memory 604 is configured to store various types of data to support operation at device 600. Examples of such data include instructions for any application or method operating on device 600, contact data, phone book data, messages, pictures, videos, and the like.
  • the memory 604 can be implemented by any type of volatile or non-volatile storage device or a 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, Disk 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
  • Disk Disk or Optical Disk.
  • Power component 606 provides power to various components of device 600.
  • Power component 606 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 600.
  • the multimedia component 608 includes a screen between the device 600 and the user that provides an output interface.
  • the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
  • the multimedia component 608 includes a front camera and/or a rear camera. When the device 600 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 610 is configured to output and/or input an audio signal.
  • audio component 610 includes a microphone (MIC) that is configured to receive an external audio signal when device 600 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in memory 604 or transmitted via communication component 616.
  • audio component 610 also includes a speaker for outputting an audio signal.
  • the I/O interface 612 provides an interface between the processing component 602 and the 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, a home button, a volume button, a start button, and a lock button.
  • Sensor assembly 614 includes one or more sensors for providing device 600 with a status assessment of various aspects.
  • sensor assembly 614 can detect an open/closed state of device 600, a relative positioning of components, such as the display and keypad of device 600, and sensor component 614 can also detect a change in position of one component of device 600 or device 600. The presence or absence of contact by the user with the device 600, the orientation or acceleration/deceleration of the device 600 and the temperature change of the device 600.
  • Sensor assembly 614 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 614 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 616 is configured to facilitate wired or wireless communication between device 600 and other devices.
  • the device 600 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • communication component 616 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
  • the communication component 616 also includes a near field communication (NFC) module to facilitate short range communication.
  • NFC near field communication
  • the NFC module can 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
  • device 600 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), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
  • 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 microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
  • non-transitory computer readable storage medium comprising instructions, such as a memory 604 comprising instructions executable by processor 620 of apparatus 600 to perform the above method.
  • the non-transitory computer readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.
  • a non-transitory computer readable storage medium wherein when instructions in the storage medium are executed by a processor of a mobile terminal, enabling the mobile terminal to perform one of the embodiments of the present disclosure
  • Kind of cell reselection method
  • a computer readable storage medium which is a non-transitory computer readable storage medium having stored therein a computer program, stored The computer program is executed by the processing component to implement the cell reselection method provided by the above embodiments of the present disclosure.
  • Embodiments of the present disclosure also provide a computer program product having instructions stored therein that, when run on a computer, enable the computer to perform the cell reselection method provided by the embodiments of the present disclosure.
  • the embodiment of the present disclosure further provides a chip, which includes programmable logic circuits and/or program instructions, and is capable of executing the cell reselection method provided by the embodiments of the present disclosure when the chip is running.

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Abstract

提供了一种小区重选方法、装置及存储介质，属于无线通信技术领域。所述方法包括：在需要进行小区重选时，UE搜索目标类型的小区，其中，该目标类型是基于UE的运动速度状态确定的（201）；当在第一目标时长内没有搜索到目标类型的小区时，UE重选到邻居小区中的第一目标小区，其中，UE的邻居小区不包括目标类型的小区（202）。该方法可以提高UE重选到合适小区的概率。

Description

小区重选方法、装置及存储介质 技术领域
本公开涉及无线通信技术领域，尤其涉及一种小区重选方法、装置及存储介质。
背景技术
小区重选是用户设备(英文：User Equipment；简称：UE)在空闲模式下选择一个最优的小区为自身提供通信服务的过程。
通常情况下，在小区重选的过程中，UE需要对自身的邻居小区进行测量，并根据测量结果从UE的邻居小区中确定UE需要重选到的小区。然而，在这样的小区重选方法中，UE重选到合适小区的概率较低。
发明内容
本公开提供了一种小区重选方法、装置及存储介质，可以提高UE重选到合适小区的概率。
根据本公开实施例的第一方面，提供一种小区重选方法，包括：
在用户设备UE需要进行小区重选时，搜索目标类型的小区，所述目标类型是基于所述UE的运动速度状态确定的；
当在第一目标时长内没有搜索到所述目标类型的小区时，重选到所述UE的邻居小区中的第一目标小区，所述UE的邻居小区不包括所述目标类型的小区。
可选的，在所述UE的运动速度状态为高速运动状态时，所述目标类型为高铁专用网络的小区类型。
可选的，在所述UE的运动速度状态为非高速运动状态时，所述目标类型为非高铁专用网络的小区类型。
可选的，所述方法还包括：在搜索所述目标类型的小区之前，根据所述UE在第二目标时长内进行小区重选的次数确定所述UE的运动速度状态。
可选的，所述方法还包括：在搜索所述目标类型的小区之前，根据所述UE在第三目标时长内进行小区切换的次数确定所述UE的运动速度状态。
可选的，所述方法还包括：在搜索所述目标类型的小区之前，根据所述UE在第四目标时长内移动的距离确定所述UE的运动速度状态。
可选的，所述方法还包括：当在所述第一目标时长内搜索到所述目标类型的小区时，重选到所述目标类型的小区。
可选的，所述当在所述第一目标时长内搜索到所述目标类型的小区时，重选到所述目标类型的小区，包括：
当在所述第一目标时长内搜索到至少两个所述目标类型的小区时，重选到至少两个所述目标类型的小区中的第二目标小区，所述第二目标小区是根据对至少两个所述目标类型的小区的测量结果确定的。
可选的，所述第一目标小区是根据对所述UE的邻居小区的测量结果确定的。
可选的，所述方法还包括：接收基站发送的高层信令；根据所述高层信令的指示确定所述第一目标时长。
可选的，所述方法还包括：根据所述UE的运动速度状态确定所述第一目标时长。
可选的，所述方法还包括：从时长集合中确定所述第一目标时长，所述时长集合包括通信协议规定的至少一个对目标类型的小区进行搜索的时长。
根据本公开实施例的第二方面，提供一种小区重选装置，包括：
搜索模块，用于在用户设备UE需要进行小区重选时，搜索目标类型的小区，所述目标类型是基于所述UE的运动速度状态确定的；
第一重选模块，用于在第一目标时长内没有搜索到所述目标类型的小区时，重选到所述UE的邻居小区中的第一目标小区，所述UE的邻居小区不包括所述目标类型的小区。
可选的，在所述UE的运动速度状态为高速运动状态时，所述目标类型为高铁专用网络的小区类型。
可选的，在所述UE的运动速度状态为非高速运动状态时，所述目标类型为非高铁专用网络的小区类型。
可选的，所述装置还包括第一运动速度状态确定模块，所述第一运动速度状态确定模块，用于：在搜索所述目标类型的小区之前，根据所述UE在第二目标时长内进行小区重选的次数确定所述UE的运动速度状态。
可选的，所述装置还包括第二运动速度状态确定模块，所述第二运动速度状态确定模块，用于：在搜索所述目标类型的小区之前，根据所述UE在第三目标时长内进行小区切换的次数确定所述UE的运动速度状态。
可选的，所述装置还包括第三运动速度状态确定模块，所述第三运动速度状态确定模块，用于：在搜索所述目标类型的小区之前，根据所述UE在第四目标时长内移动的距离确定所述UE的运动速度状态。
可选的，所述装置还包括第二重选模块，所述第二重选模块，用于在所述第一目标时长内搜索到所述目标类型的小区时，重选到所述目标类型的小区。
可选的，所述第二重选模块包括重选子模块，所述重选子模块，用于：当在所述第一目标时长内搜索到至少两个所述目标类型的小区时，重选到至少两个所述目标类型的小区中的第二目标小区，所述第二目标小区是根据对至少两个所述目标类型的小区的测量结果确定的。
可选的，所述第一目标小区是根据对所述UE的邻居小区的测量结果确定的。
可选的，所述装置还包括接收模块和第一时长确定模块，其中：
所述接收模块，用于接收基站发送的高层信令；
所述第一时长确定模块，用于根据所述高层信令的指示确定所述第一目标时长。
可选的，所述装置还包括第二时长确定模块，所述第二时长确定模块，用于：根据所述UE的运动速度状态确定所述第一目标时长。
可选的，所述装置还包括第三时长确定模块，所述第三时长确定模块，用于：从时长集合中确定所述第一目标时长，所述时长集合包括通信协议规定的至少一个对目标类型的小区进行搜索的时长。
根据本公开实施例的第三方面，提供一种用户设备，包括：
处理器；
用于存储处理器可执行的指令的存储器；
其中，所述处理器被配置为：
在用户设备UE需要进行小区重选时，搜索目标类型的小区，所述目标类型是基于所述UE的运动速度状态确定的；
当在第一目标时长内没有搜索到所述目标类型的小区时，重选到所述UE的邻居小区中的第一目标小区，所述UE的邻居小区不包括所述目标类型的小区。
根据本公开实施例的第四方面，提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，存储的所述计算机程序被处理组件执行时能够实现上述第一方面任一所述的小区重选方法。
本公开的实施例提供的技术方案至少可以包括以下有益效果：
通过UE在需要进行小区重选时，搜索目标类型的小区，并在第一目标时长内没有搜索到目标类型的小区时，重选到UE的邻居小区中的第一目标小区，其中，该目标类型是基于UE的运动速度状态确定的，UE的邻居小区不包括该目标类型的小区，这样，UE可以结合自身的运动速度状态进行小区重选，由于一些情况下，UE运动速度状态与UE重选到何种小区较为合适息息相关，因此，UE结合自身的运动速度状态进行小区重选可以提高UE重选到合适小 区的概率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种实施环境的示意图。
图2是根据一示例性实施例示出的一种小区重选方法的流程图。
图3是根据一示例性实施例示出的一种小区重选方法的流程图。
图4是根据一示例性实施例示出的一种小区重选装置的框图。
图5是根据一示例性实施例示出的一种小区重选装置的框图。
图6是根据一示例性实施例示出的一种小区重选装置的框图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开实施方式作进一步地详细描述。
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
随着高铁技术的飞速发展，越来越多的用户选择高铁出行，如何保证乘坐高铁的用户的通信质量已经成为了目前无线通信技术领域的一个研究热点。
由于位于高铁上的用户设备(英文：User Equipment；简称：UE)处于高 速运动状态，因此，该位于高铁上的UE很可能会在短时间内由某一小区的信号覆盖范围移动到另一小区的信号覆盖范围，这导致该位于高铁上的UE需要进行频繁的小区重选和小区切换，UE进行频繁的小区重选和小区切换不仅会增加UE的功耗，还会对UE的通信质量带来负面的影响。
为了避免位于高铁上的UE频繁的进行小区重选和小区切换，通常可以在高铁沿线上部署高铁专用网络(英文：High-speed-railway dedicated network)，高铁专用网络可以将基站的基带单元和射频单元分离，并将射频单元在地理位置上拉远，可选的，高铁专用网络可以在高铁沿线的不同位置上部署多个射频拉远单元(英文：Radio Remote Unit；简称：RRU)，并利用该多个RRU为同一个高铁专用网络的小区提供服务。由于高铁专用网络可以将基站的射频单元在地理位置上拉远，因此，高铁专用网络中小区的信号覆盖范围较广，这样，就可以避免位于高铁上的UE频繁的进行小区重选和小区切换。
由于高铁专用网络中小区的信号覆盖范围较广，因此，不位于高铁上的UE也有可能驻留到高铁专用网络的小区中，这会造成高铁专用网络的拥塞，从而影响位于高铁上的UE的通信质量。
基于避免高铁专用网络拥塞，保证位于高铁上的UE的通信质量的考虑，需要保证UE在小区重选的过程中尽可能重选到合适的小区，其中，对于位于高铁上的UE而言，该合适的小区可以为高铁专用网络的小区，对于不位于高铁上的UE而言，该合适的小区可以为非高铁专用网络的小区。
相关技术中，在进行小区重选时，UE可以对自身的邻居小区进行测量(英文：measurement)，并根据测量结果从UE的邻居小区中确定UE需要重选到的小区。然而，在这样的小区重选方法中，UE重选到合适小区的概率较低。
本公开实施例提供了一种小区重选方法，该小区重选方法可以提高UE重选到合适小区的概率。在该小区重选方法中，UE可以在需要进行小区重选时，搜索目标类型的小区，其中，该目标类型是基于UE的运动速度状态确定的，当UE在第一目标时长内没有搜索到目标类型的小区时，UE可以重选到邻居 小区中的第一目标小区，其中，UE的邻居小区不包括该目标类型的小区，这样，UE就可以结合自身的运动速度状态进行小区重选，由于UE运动速度状态可以反映UE是否位于高铁上，因此，UE运动速度状态与UE重选到何种小区较为合适息息相关，故而，在本公开实施例提供的小区重选方法中，UE结合自身的运动速度状态进行小区重选可以提高UE重选到合适小区的概率。
下面，将对本公开实施例提供的小区重选方法所涉及到的实施环境进行简要的说明。
图1为本公开实施例提供的小区重选方法所涉及到的实施环境的示意图，如图1所示，该实施环境可以包括UE 101和至少一个基站102(图1中仅示出了两个基站102)，其中，UE 101在进行小区重选时，可以搜索到该至少一个基站102中的每个基站102所服务的小区，该至少一个基站102可以包括高铁专用网络中的基站和/或非高铁专用网络中的基站。
图2是根据一示例性实施例示出的一种小区重选方法的流程图，如图2所示，该小区重选方法用于图1所示的UE 101中，该小区重选方法包括以下步骤。
步骤201、在需要进行小区重选时，UE搜索目标类型的小区，其中，该目标类型是基于UE的运动速度状态确定的。
步骤202、当在第一目标时长内没有搜索到目标类型的小区时，UE重选到邻居小区中的第一目标小区，其中，UE的邻居小区不包括目标类型的小区。
综上所述，本公开实施例提供的小区重选方法，通过UE在需要进行小区重选时，搜索目标类型的小区，并在第一目标时长内没有搜索到目标类型的小区时，重选到UE的邻居小区中的第一目标小区，其中，该目标类型是基于UE的运动速度状态确定的，UE的邻居小区不包括该目标类型的小区，这样，UE可以结合自身的运动速度状态进行小区重选，由于一些情况下，UE运动速度 状态与UE重选到何种小区较为合适息息相关，因此，UE结合自身的运动速度状态进行小区重选可以提高UE重选到合适小区的概率。
图3是根据一示例性实施例示出的一种小区重选方法的流程图，如图3所示，该小区重选方法用于图1所示的UE 101中，该小区重选方法包括以下步骤。
步骤301、在需要进行小区重选时，UE确定自身的运动速度状态。
在需要进行小区重选时，UE可以确定自身的运动速度状态。在本公开实施例中，UE的运动速度状态可以包括高速运动状态(英文：high mobility state)和非高速运动状态，其中，高速运动状态和非高速运动状态的定义被披露于3GPP的通信标准中，本公开实施例在此不再赘述。需要指出的是，当UE位于高铁上时，UE通常处于高速运动状态，当UE不位于高铁上时，UE通常处于非高速运动状态。
本公开实施例提供了三种示例性的UE确定自身的运动速度状态的方式，其中：
第一种方式、UE根据自身进行小区重选的频率确定自身的运动速度状态。
可选的，UE在每次进行小区重选之后，可以对进行小区重选的时刻进行记录。在UE确定自身运动速度状态的过程中，UE可以获取当前时刻之前的第二目标时长内，UE进行小区重选的次数，其中，该当前时刻也即是UE执行确定自身运动速度状态的技术过程的时刻，UE可以根据获取到的该小区重选的次数表征UE进行小区重选的频率，继而根据获取到的该小区重选的次数确定UE的运动速度状态。可选的，UE本地可以存储有小区重选次数和UE运动速度状态的对应关系表，UE可以根据获取到的该小区重选的次数查询该对应关系表，从而得到UE的运动速度状态。
通常情况下，UE处于高速运动状态时，UE在该第二目标时长内进行小区重选的次数较多，UE处于非高速运动状态时，UE在该第二目标时长内进行小 区重选的次数较少。
第二种方式、UE根据自身进行小区切换的频率确定自身的运动速度状态。
小区切换指的是UE完成从源小区到目标小区的无线链路连接的迁移，小区切换是保证无缝的移动通信服务的基木技术手段，其可以在不同小区无线信道之间交换一个正在进行中的通话，而不使其中断。
可选的，UE在每次进行小区切换之后，可以对进行小区切换的时刻进行记录。在UE确定自身运动速度状态的过程中，UE可以获取当前时刻之前的第三目标时长内，UE进行小区切换的次数，其中，该当前时刻也即是UE执行确定自身运动速度状态的技术过程的时刻，UE可以根据获取到的该小区切换的次数表征UE进行小区切换的频率，继而根据获取到的该小区切换的次数确定UE的运动速度状态。可选的，UE本地可以存储有小区切换次数和UE运动速度状态的对应关系表，UE可以根据获取到的该小区切换的次数查询该对应关系表，从而得到UE的运动速度状态。
通常情况下，UE处于高速运动状态时，UE在该第二目标时长内进行小区切换的次数较多，UE处于非高速运动状态时，UE在该第二目标时长内进行小区切换的次数较少。
第三种方式、UE根据自身在第四目标时长内移动的距离确定自身的运动速度状态。
可选的，UE可以每隔第四目标时长获取自身的地理位置，例如，UE可以每隔第四目标时长启动自身的全球定位***(英文：Global Positioning System；简称：GPS)组件，并利用该GPS组件获取自身的地理位置。
在UE确定自身运动速度状态的过程中，UE可以获取当前时刻之前UE相邻两次获取的地理位置，并根据该相邻两次获取的地理位置确定UE在第四目标时长内移动的距离，而后，UE可以根据自身在第四目标时长内移动的距离确定自身的运动速度状态，其中，该当前时刻也即是UE执行确定自身运动速度状态的技术过程的时刻。可选的，UE本地可以存储有移动距离和UE运 动速度状态的对应关系表，UE可以根据确定的自身在第四目标时长内移动的距离查询该对应关系表，从而得到UE的运动速度状态。
通常情况下，UE处于高速运动状态时，UE在第四目标时长内移动的距离较长，UE处于非高速运动状态时，UE在第四目标时长内移动的距离较短。
需要指出的是，上述第二目标时长、第三目标时长和第四目标时长可以由基站通过高层信令进行配置，也可以由通信协议进行规定，还可以由UE自主确定，本公开实施例对此不作具体限定。
步骤302、UE搜索目标类型的小区，该目标类型是基于UE的运动速度状态确定的。
UE在确定了自身的运动速度状态之后，可以根据自身的运动速度状态确定待搜索小区的类型(也即是上文所述的目标类型)，其中，该待搜索小区是UE需要尽可能重选到的合适小区。
可选的，在UE的运动速度状态为高速运动状态时，说明UE很有可能位于高铁上，在这种情况下，该目标类型可以为高铁专用网络的小区类型，在UE的运动速度状态为非高速运动状态时，说明UE很可能不位于高铁上，在这种情况下，该目标类型可以为非高铁专用网络的小区类型。
需要指出的是，该第一速度阈值和该第二速度阈值可以相同，也可以不相同，该第一速度阈值和该第二速度阈值可以由基站通过高层信令进行配置，也可以由通信协议进行规定，还可以由UE自主确定，本公开实施例对此不作具体限定。
在UE根据自身的运动速度状态确定了目标类型之后，UE可以对目标类型的小区进行搜索。
可选的，基站可以广播该基站所服务的小区的类型信息，其中，该类型信息用于指示基站所服务的小区是否为高铁专用网络的小区，UE可以接收至少一个基站广播的该类型信息，并从接收到的类型信息中搜索是否存在目标类型信息，其中，该目标类型信息用于指示基站所服务的小区为高铁专用网络的小 区。如果UE从接收到的类型信息中搜索到该目标类型信息，意味着UE搜索到了目标类型的小区，该目标类型的小区即为该目标类型信息所指示的小区，如果UE没有从接收到的类型信息中搜索到该目标类型信息，意味着UE没有搜索到目标类型的小区。
步骤303、当在第一目标时长内搜索到目标类型的小区时，UE重选到目标类型的小区。
当UE在第一目标时长内搜索到目标类型的小区时，说明UE的周围存在目标类型的小区，此时，UE可以重选到该目标类型的小区，从而保证UE在小区重选的过程中能够重选到合适的小区。根据上文叙述可知，当UE位于高铁上时，该合适的小区，也即是该目标类型的小区为高铁专用网络的小区，当UE不位于高铁上时，该合适的小区，也即是，该目标类型的小区为非高铁专用网络的小区。
实际实现时，很有可能出现UE在第一目标时长内搜索到至少两个目标类型的小区的情况，也即是，很有可能出现UE的周围存在至少两个目标类型的小区的情况。在出现这种情况时，为了保证UE能够重选到最优的小区，UE可以对该至少两个目标类型的小区进行测量，并根据测量结果确定第二目标小区，在小区重选的过程中，UE可以重选到该第二目标小区。
可选的，UE对该至少两个目标类型的小区进行的测量可以为同频测量，也可以为异频测量，在UE对该至少两个目标类型的小区进行的测量为同频测量时，UE可以测量得到该至少两个目标类型的小区中每个目标类型的小区的RSRP，并根据该至少两个目标类型的小区的RSRP确定第二目标小区，在UE对该至少两个目标类型的小区进行的测量为异频测量时，UE可以获取该至少两个目标类型的小区的频点信息，并将频点信息的优先级最高的目标类型的小区确定为第二目标小区。
此外，实际实现时，还很有可能出现UE迟迟无法搜索到目标类型的小区的情况，在这种情况下，由于UE迟迟无法搜索到目标类型的小区，因此，UE 将迟迟无法完成小区重选，从而出现UE无小区可驻留的情况。为了避免出现UE无小区可驻留的情况的发生，本公开实施例可以对UE搜索目标类型的小区的时长(也即是第一目标时长)进行限制，使得UE只在第一目标时长内搜索目标类型的小区，当UE在该第一目标时长内搜索到目标类型的小区时，UE可以重选到该目标类型的小区，当UE没有在该第一目标时长内搜索到目标类型的小区时，UE可以重选到非目标类型的小区，其中，根据上文叙述可知，当UE位于高铁上时，该非目标类型的小区为非高铁专用网络的小区，当UE不位于高铁上时，该非目标类型的小区为高铁专用网络的小区。这样，一方面可以保证UE能够尽可能地重选到合适的小区(也即是目标类型的小区)，另一方面可以避免出现UE无小区可驻留的情况的发生。
在一种可能的实现方式中，基站可以向UE发送高层信令，该高层信令用于指示该第一目标时长，在接收到该高层信令后，UE可以根据该高层信令的指示确定该第一目标时长。
在另一种可能的实现方式中，UE可以根据自身的运动速度状态确定该第一目标时长，例如，UE本地可以存储有运动速度状态与第一目标时长的对应关系表，UE可以根据在步骤301中确定的运动速度状态查询该对应关系表，从而确定第一目标时长。通常情况下，UE的运动速度状态为高速运动状态时，该第一目标时长较短，这是因为，UE的运动速度越快，UE在相同时间内经过的小区的数量越多，因此，UE可以通过较短时长的搜索确定该UE周围是否存在目标类型的小区。
在又一种可能的实现方式中，UE可以从时长集合中确定第一目标时长，其中，该时长集合包括通信协议规定的至少一个对目标类型的小区进行搜索的时长。
步骤304、当在第一目标时长内没有搜索到目标类型的小区时，UE重选到邻居小区中的第一目标小区。
如上所述，为了避免出现UE无小区可驻留的情况的发生，当在第一目标 时长内没有搜索到目标类型的小区时，UE可以重选到邻居小区中的第一目标小区，其中，UE的邻居小区不包括目标类型的小区，该第一目标小区是UE根据对邻居小区的测量结果确定的。
需要指出的是，UE对邻居小区进行的测量也可以为同频测量或异频测量，在UE对邻居小区进行的测量为同频测量时，UE可以测量得到每个邻居小区的RSRP，并根据邻居小区的RSRP确定第一目标小区，在UE对邻居小区进行的测量为异频测量时，UE可以获取每个邻居小区的频点信息，并将频点信息的优先级最高的小区确定为第一目标小区。
综上所述，本公开实施例提供的小区重选方法，通过UE在需要进行小区重选时，搜索目标类型的小区，并在第一目标时长内没有搜索到目标类型的小区时，重选到UE的邻居小区中的第一目标小区，其中，该目标类型是基于UE的运动速度状态确定的，UE的邻居小区不包括该目标类型的小区，这样，UE可以结合自身的运动速度状态进行小区重选，由于一些情况下，UE运动速度状态与UE重选到何种小区较为合适息息相关，因此，UE结合自身的运动速度状态进行小区重选可以提高UE重选到合适小区的概率。
图4是根据一示例性实施例示出的一种小区重选装置400的框图，该小区重选装置400可以设置于图1所示的UE 101中。参照图4，该小区重选装置400包括搜索模块401和第一重选模块402。
其中，该搜索模块401，用于在用户设备UE需要进行小区重选时，搜索目标类型的小区，该目标类型是基于该UE的运动速度状态确定的。
该第一重选模块402，用于在第一目标时长内没有搜索到该目标类型的小区时，重选到该UE的邻居小区中的第一目标小区，该UE的邻居小区不包括该目标类型的小区。
在本公开的一个实施例中，在该UE的运动速度状态为高速运动状态时，该目标类型为高铁专用网络的小区类型。
在本公开的一个实施例中，在该UE的运动速度状态为非高速运动状态时，该目标类型为非高铁专用网络的小区类型。
在本公开的一个实施例中，该第一目标小区是根据对该UE的邻居小区的测量结果确定的。
如图5所示，本公开实施例还提供了另一种小区重选装置500，该小区重选装置500除了包括小区重选装置400包括的模块外，还包括第一运动速度状态确定模块403、第二运动速度状态确定模块404、第三运动速度状态确定模块405、第二重选模块406、接收模块407、第一时长确定模块408、第二时长确定模块409和第三时长确定模块410中的至少一个模块，图5仅以小区装置500包括第一运动速度状态确定模块403、第二运动速度状态确定模块404、第三运动速度状态确定模块405、第二重选模块406、接收模块407、第一时长确定模块408、第二时长确定模块409和第三时长确定模块410的所有模块为例进行绘制。
该第一运动速度状态确定模块403，用于：在搜索该目标类型的小区之前，根据该UE在第二目标时长内进行小区重选的次数确定该UE的运动速度状态。
该第二运动速度状态确定模块404，用于：在搜索该目标类型的小区之前，根据该UE在第三目标时长内进行小区切换的次数确定该UE的运动速度状态。
该第三运动速度状态确定模块405，用于：在搜索该目标类型的小区之前，根据该UE在第四目标时长内移动的距离确定该UE的运动速度状态。
该第二重选模块406，用于：在该第一目标时长内搜索到该目标类型的小区时，重选到该目标类型的小区。
在本公开的一个实施例中，该第二重选模块包括重选子模块，该重选子模块，用于：当在该第一目标时长内搜索到至少两个该目标类型的小区时，重选到至少两个该目标类型的小区中的第二目标小区，该第二目标小区是根据对至少两个该目标类型的小区的测量结果确定的。
该接收模块407，用于接收基站发送的高层信令。
该第一时长确定模块408，用于根据该高层信令的指示确定该第一目标时长。
该第二时长确定模块409，用于：根据该UE的运动速度状态确定该第一目标时长。
该第三时长确定模块410，用于：从时长集合中确定该第一目标时长，该时长集合包括通信协议规定的至少一个对目标类型的小区进行搜索的时长。
综上所述，本公开实施例提供的小区重选装置，通过在需要进行小区重选时，搜索目标类型的小区，并在第一目标时长内没有搜索到目标类型的小区时，重选到UE的邻居小区中的第一目标小区，其中，该目标类型是基于UE的运动速度状态确定的，UE的邻居小区不包括该目标类型的小区，这样，UE可以结合自身的运动速度状态进行小区重选，由于一些情况下，UE运动速度状态与UE重选到何种小区较为合适息息相关，因此，UE结合自身的运动速度状态进行小区重选可以提高UE重选到合适小区的概率。
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有关该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。
图6是根据一示例性实施例示出的一种小区重选装置600的框图。例如，装置600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6，装置600可以包括以下一个或多个组件：处理组件602，存储器604，电源组件606，多媒体组件608，音频组件610，输入/输出(I/O)的接口612，传感器组件614，以及通信组件616。
处理组件602通常控制装置600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602可以包括一个或多个处理器620来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件602可以包括一个或多个模块，便于处理组件602和其他组件之间的交互。 例如，处理组件602可以包括多媒体模块，以方便多媒体组件608和处理组件602之间的交互。
存储器604被配置为存储各种类型的数据以支持在装置600的操作。这些数据的示例包括用于在装置600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604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606为装置600的各种组件提供电力。电源组件606可以包括电源管理***，一个或多个电源，及其他与为装置600生成、管理和分配电力相关联的组件。
多媒体组件608包括在所述装置600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608包括一个前置摄像头和/或后置摄像头。当装置600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610被配置为输出和/或输入音频信号。例如，音频组件610包括一个麦克风(MIC)，当装置600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604或经由通信组件616发送。在一些实施例中，音频组 件610还包括一个扬声器，用于输出音频信号。
I/O接口612为处理组件602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614包括一个或多个传感器，用于为装置600提供各个方面的状态评估。例如，传感器组件614可以检测到装置600的打开/关闭状态，组件的相对定位，例如所述组件为装置600的显示器和小键盘，传感器组件614还可以检测装置600或装置600一个组件的位置改变，用户与装置600接触的存在或不存在，装置600方位或加速/减速和装置600的温度变化。传感器组件614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614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614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616被配置为便于装置600和其他设备之间有线或无线方式的通信。装置600可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信部件616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，所述通信部件616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600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604，上述指令可由装置600的处理器620执行以 完成上述方法。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。
在示例性实施例中，还提供了一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行本公开实施例提供的一种小区重选方法。
在示例性实施例中，还提供了一种计算机可读存储介质，该计算机可读存储介质为非易失性的计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，存储的计算机程序被处理组件执行时能够实现本公开上述实施例提供的小区重选方法。
本公开实施例还提供了一种计算机程序产品，该计算机程序产品中存储有指令，当其在计算机上运行时，使得计算机能够执行本公开实施例提供的小区重选方法。
本公开实施例还提供了一种芯片，该芯片包括可编程逻辑电路和/或程序指令，当该芯片运行时能够执行本公开实施例提供的小区重选方法。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请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。

Claims (15)

  1. 一种小区重选方法，其特征在于，所述方法包括：
    在用户设备UE需要进行小区重选时，搜索目标类型的小区，所述目标类型是基于所述UE的运动速度状态确定的；
    当在第一目标时长内没有搜索到所述目标类型的小区时，重选到所述UE的邻居小区中的第一目标小区，所述UE的邻居小区不包括所述目标类型的小区。
  2. 根据权利要求1所述的方法，其特征在于，在所述UE的运动速度状态为高速运动状态时，所述目标类型为高铁专用网络的小区类型。
  3. 根据权利要求1所述的方法，其特征在于，在所述UE的运动速度状态为非高速运动状态时，所述目标类型为非高铁专用网络的小区类型。
  4. 根据权利要求1至3任一所述的方法，其特征在于，所述方法还包括：
    在搜索所述目标类型的小区之前，根据所述UE在第二目标时长内进行小区重选的次数确定所述UE的运动速度状态。
  5. 根据权利要求1至3任一所述的方法，其特征在于，所述方法还包括：
    在搜索所述目标类型的小区之前，根据所述UE在第三目标时长内进行小区切换的次数确定所述UE的运动速度状态。
  6. 根据权利要求1至3任一所述的方法，其特征在于，所述方法还包括：
    在搜索所述目标类型的小区之前，根据所述UE在第四目标时长内移动的距离确定所述UE的运动速度状态。
  7. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    当在所述第一目标时长内搜索到所述目标类型的小区时，重选到所述目标类型的小区。
  8. 根据权利要求7所述的方法，其特征在于，所述当在所述第一目标时长内搜索到所述目标类型的小区时，重选到所述目标类型的小区，包括：
    当在所述第一目标时长内搜索到至少两个所述目标类型的小区时，重选到至少两个所述目标类型的小区中的第二目标小区，所述第二目标小区是根据对至少两个所述目标类型的小区的测量结果确定的。
  9. 根据权利要求1所述的方法，其特征在于，所述第一目标小区是根据对所述UE的邻居小区的测量结果确定的。
  10. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    接收基站发送的高层信令；
    根据所述高层信令的指示确定所述第一目标时长。
  11. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    根据所述UE的运动速度状态确定所述第一目标时长。
  12. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    从时长集合中确定所述第一目标时长，所述时长集合包括通信协议规定的至少一个对目标类型的小区进行搜索的时长。
  13. 一种小区重选装置，其特征在于，所述装置包括：
    搜索模块，用于在用户设备UE需要进行小区重选时，搜索目标类型的小区，所述目标类型是基于所述UE的运动速度状态确定的；
    第一重选模块，用于在第一目标时长内没有搜索到所述目标类型的小区时， 重选到所述UE的邻居小区中的第一目标小区，所述UE的邻居小区不包括所述目标类型的小区。
  14. 一种用户设备，其特征在于，包括：
    处理器；
    用于存储处理器可执行的指令的存储器；
    其中，所述处理器被配置为：
    在用户设备UE需要进行小区重选时，搜索目标类型的小区，所述目标类型是基于所述UE的运动速度状态确定的；
    当在第一目标时长内没有搜索到所述目标类型的小区时，重选到所述UE的邻居小区中的第一目标小区，所述UE的邻居小区不包括所述目标类型的小区。
  15. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序，存储的所述计算机程序被处理组件执行时能够实现如权利要求1至12任一所述的小区重选方法。
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