WO2021237735A1 - 小区重选方法、小区重选装置及存储介质 - Google Patents

小区重选方法、小区重选装置及存储介质 Download PDF

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Publication number
WO2021237735A1
WO2021237735A1 PCT/CN2020/093515 CN2020093515W WO2021237735A1 WO 2021237735 A1 WO2021237735 A1 WO 2021237735A1 CN 2020093515 W CN2020093515 W CN 2020093515W WO 2021237735 A1 WO2021237735 A1 WO 2021237735A1
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Prior art keywords
cell
terminal
actual distance
distance
value
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PCT/CN2020/093515
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English (en)
French (fr)
Inventor
董贤东
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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 BR112022024220A priority Critical patent/BR112022024220A2/pt
Priority to PCT/CN2020/093515 priority patent/WO2021237735A1/zh
Priority to JP2022573157A priority patent/JP7429806B2/ja
Priority to CN202080001166.9A priority patent/CN114073128A/zh
Priority to EP20937666.4A priority patent/EP4161145A4/en
Priority to KR1020227043831A priority patent/KR20230010726A/ko
Publication of WO2021237735A1 publication Critical patent/WO2021237735A1/zh
Priority to US18/059,233 priority patent/US20230089127A1/en

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    • 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
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • 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
    • H04W36/326—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by proximity to another entity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks
    • 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 communication technology, and in particular to a cell reselection method, a cell reselection device, and a storage medium.
  • the terminal mainly performs cell reselection based on the S criterion and the R criterion.
  • NTN non-terrestrial networks
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • cell reselection based on the S criterion and the R criterion will cause the terminal to perform cell reselection in two cells back and forth, and if the cell reselection is performed based on the S criterion and the R criterion , It is difficult to configure reasonable cell reselection parameters.
  • the present disclosure provides a cell reselection method, a cell reselection device, and a storage medium.
  • a cell reselection method including:
  • the cell includes a serving cell of the terminal, and the method further includes:
  • the cell selection quality is greater than the reference signal receiving quality signal quality threshold for starting intra-frequency measurement, and the reference distance of the serving cell is greater than the terminal The actual distance from the center of the serving cell is selected not to measure the neighboring cells with the same frequency.
  • the target cell obtained by performing cell reselection according to the reference distance and the actual distance satisfies: the cell selection level of the target cell is greater than 0, and the cell selection quality of the target cell is greater than 0. And the reference distance of the target cell is greater than the actual distance between the terminal and the center of the target cell.
  • the performing cell reselection according to the reference distance and the actual distance includes:
  • the reference distance is selected from the neighboring cells with the R value higher than the serving cell R value greater than or Neighbor cells equal to the actual distance;
  • the neighboring cell with the largest R value among neighboring cells with the reference distance greater than or equal to the actual distance is selected as the neighbor cell Reselected cell;
  • performing cell reselection according to the reference distance of the serving cell and the actual distance between the terminal and the center of the serving cell includes:
  • camp on the serving cell In response to the reference distance of the serving cell being greater than or equal to the actual distance between the terminal and the serving cell center, camp on the serving cell; in response to the reference distance of the serving cell being less than the actual distance between the terminal and the serving cell center, when the R value is high Among the neighboring cells with the R value of the serving cell, the neighboring cell with the largest R value is selected as the reselected cell.
  • the performing cell reselection according to the reference distance and the actual distance includes:
  • the cell selection quality is greater than 0, and the reference distance is greater than the actual distance; in the selected cells, the R values of multiple cells are determined according to the cell reselection R criterion; in response to the The determined R value of the neighboring cell is higher than the R value of the serving cell, and the neighboring cell with the largest R value is selected as the reselected cell among the neighboring cells with the R value higher than the R value of the serving cell.
  • determining the actual distance between the terminal and the cell center includes:
  • determining the actual distance between the terminal and the cell center includes:
  • the location information of the terminal is determined, and the location information is sent to a network device; the actual distance between the terminal and the cell center determined by the network device according to the location information of the terminal and the cell location information is obtained.
  • the obtaining the reference distance of the cell includes:
  • a cell reselection method including:
  • the reference distance is used by the terminal to perform cell reselection according to the reference distance and the actual distance between the terminal and the cell center.
  • the cell reselection method further includes: sending cell location information, where the cell location information is used by the terminal to determine the actual distance.
  • the cell reselection method further includes: acquiring location information of the terminal; determining the actual distance between the terminal and the cell center according to the location information of the terminal and the cell location information; sending the terminal Actual distance.
  • the target cell reselected by the terminal according to the actual distance between the terminal and the cell center and the reference distance satisfies: the cell selection level of the target cell is greater than 0, the cell of the target cell The selection quality is greater than 0 and the reference distance of the target cell is greater than the actual distance between the terminal and the center of the target cell.
  • a cell reselection device including:
  • the acquiring unit is configured to acquire the reference distance of the cell and determine the actual distance between the terminal and the center of the cell; the processing unit is configured to perform cell reselection according to the reference distance and the actual distance.
  • the cell includes a serving cell of the terminal, and the processing unit is further configured to:
  • the cell selection quality is greater than the reference signal receiving quality signal quality threshold for starting intra-frequency measurement, and the reference distance of the serving cell is greater than all If the actual distance between the terminal and the center of the serving cell is described, the measurement is not performed on the neighboring cells of the same frequency.
  • the target cell obtained by performing cell reselection according to the reference distance and the actual distance satisfies: the cell selection level of the target cell is greater than 0, the cell selection quality of the target cell is greater than 0, And the reference distance of the target cell is greater than the actual distance between the terminal and the center of the target cell.
  • the processing unit is configured to perform cell reselection according to the reference distance and the actual distance in the following manner: determine R values of multiple cells according to the R criterion for cell reselection, and the multiple Each cell includes a neighboring cell and a serving cell; in response to the determined neighboring cell R value being higher than the serving cell R value, and the neighboring cell satisfies the S criterion for cell reselection, the R value is higher than the serving cell R value.
  • a neighboring cell with a reference distance greater than or equal to the actual distance from the neighboring cells with a value of R The neighboring cell with the largest R value among the neighboring cells that are greater than or equal to the actual distance is selected as the reselected cell; in response to the neighboring cells with the R value higher than the R value of the serving cell, there is no neighboring cell whose reference distance is greater than or equal to the actual distance , Perform cell reselection according to the reference distance of the serving cell and the actual distance between the terminal and the center of the serving cell.
  • the processing unit is configured to perform cell reselection according to the reference distance of the serving cell and the actual distance between the terminal and the center of the serving cell in the following manner:
  • camp on the serving cell In response to the reference distance of the serving cell being greater than or equal to the actual distance between the terminal and the serving cell center, camp on the serving cell; in response to the reference distance of the serving cell being less than the actual distance between the terminal and the serving cell center, when the R value is high Among the neighboring cells with the R value of the serving cell, the neighboring cell with the largest R value is selected as the reselected cell.
  • the processing unit is configured to perform cell reselection according to the reference distance and the actual distance in the following manner:
  • the cell selection quality is greater than 0, and the reference distance is greater than the actual distance; in the selected cells, the R values of multiple cells are determined according to the cell reselection R criterion; in response to the The determined R value of the neighboring cell is higher than the R value of the serving cell, and the neighboring cell with the largest R value is selected as the reselected cell among the neighboring cells with the R value higher than the R value of the serving cell.
  • the acquiring unit is configured to determine the actual distance between the terminal and the cell center in the following manner:
  • the acquiring unit is configured to determine the actual distance between the terminal and the cell center in the following manner:
  • the location information of the terminal is determined, and the location information is sent to a network device; the actual distance between the terminal and the cell center determined by the network device according to the location information of the terminal and the cell location information is obtained.
  • the acquiring unit is configured to acquire the reference distance of the cell in the following manner: acquiring the reference distance of the cell according to a system broadcast message of the serving cell and/or neighboring cells.
  • a cell reselection device including:
  • the sending unit is configured to send a reference distance of a cell, where the reference distance is used by the terminal to perform cell reselection according to the reference distance and the actual distance between the terminal and the cell center.
  • the sending unit is further configured to send cell location information, where the cell location information is used by the terminal to determine the actual distance.
  • the cell reselection device further includes an acquiring unit and a processing unit, and the acquiring unit is configured to acquire location information of the terminal.
  • the processing unit is further configured to determine the actual distance between the terminal and the cell center according to the location information of the terminal and the cell location information.
  • the sending unit is further configured to send the actual distance to the terminal.
  • the target cell obtained by the terminal performing cell reselection according to the reference distance and the actual distance between the terminal and the cell center meets: the cell selection level of the target cell is greater than 0, and the target cell The cell selection quality of the cell is greater than 0, and the reference distance of the target cell is greater than the actual distance between the terminal and the center of the target cell.
  • a cell reselection device including:
  • Processor a memory used to store executable instructions of the processor
  • the processor is configured to execute the cell reselection method described in the first aspect or any one of the implementation manners of the first aspect.
  • a cell reselection device including:
  • Processor a memory used to store executable instructions of the processor
  • the processor is configured to execute the cell reselection method described in the second aspect or any one of the implementation manners of the second aspect.
  • a non-transitory computer-readable storage medium When instructions in the storage medium are executed by a processor of a mobile terminal, the mobile terminal can execute the first aspect or the first aspect. Any one of the cell reselection methods described in the implementation manner.
  • a non-transitory computer-readable storage medium When instructions in the storage medium are executed by a processor of a network device, the network device can execute the second aspect or the second aspect. Any one of the cell reselection methods described in the implementation manner.
  • the terminal performs cell reselection according to the reference distance of the cell and the actual distance between the terminal and the cell center, thereby performing cell reselection in combination with the distance between the terminal and the cell, and thus can be applied Reselect the NTN network cell with a large cell radius.
  • Fig. 1 is a diagram showing an architecture of a communication system according to an exemplary embodiment.
  • Fig. 2 is a flow chart showing a method for cell reselection according to an exemplary embodiment.
  • Fig. 3 is a flow chart showing a method for cell reselection according to an exemplary embodiment.
  • Fig. 4 is a flow chart showing a method for cell reselection based on the reference distance of the cell and the actual distance between the terminal and the cell center, according to an exemplary embodiment.
  • Fig. 5 is a flow chart showing a method for cell reselection according to the reference distance of the cell and the actual distance between the terminal and the cell center, according to an exemplary embodiment.
  • Fig. 6 is a block diagram showing a cell reselection device according to an exemplary embodiment.
  • Fig. 7 is a block diagram showing a cell reselection device according to an exemplary embodiment.
  • Fig. 8 is a block diagram showing a device for cell reselection according to an exemplary embodiment.
  • Fig. 9 is a block diagram showing a device according to an exemplary embodiment.
  • the information sending method provided by the embodiments of the present disclosure can be applied to the wireless communication system shown in FIG. 1.
  • the wireless communication system includes terminals and network equipment. Information is sent and received between the terminal and the network device through wireless resources.
  • the wireless communication system shown in FIG. 1 is only for schematic illustration, and the wireless communication system may also include other network equipment, such as core network equipment, wireless relay equipment, and wireless backhaul equipment. Not shown in Figure 1.
  • the embodiments of the present disclosure do not limit the number of network devices and the number of terminals included in the wireless communication system.
  • the wireless communication system of the embodiments of the present disclosure is a network that provides wireless communication functions.
  • Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , Frequency Division Multiple Access (FDMA), Orthogonal Frequency-Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (Single Carrier FDMA, SC-FDMA), Carrier Sense Multiple access/conflict avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • OFDMA Orthogonal Frequency-Division Multiple Access
  • Single Carrier Frequency Division Multiple Access Single Carrier Frequency Division Multiple Access
  • SC-FDMA SC-FDMA
  • Carrier Sense Multiple access/conflict avoidance Carrier Sense Multiple Access with Collision Avoidance
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
  • 2G English: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called a new wireless network ( New Radio, NR).
  • New Radio NR
  • the wireless communication network is sometimes referred to as a network for short in this disclosure.
  • the network device involved in the present disclosure may also be referred to as a wireless access network device.
  • the wireless access network equipment may be: a base station, an evolved base station (evolved node B, base station), a home base station, an access point (AP) in a wireless fidelity (wireless fidelity, WIFI) system, and a wireless relay Node, wireless backhaul node, transmission point (transmission point, TP), or transmission and reception point (transmission and reception point, TRP), etc., can also be the gNB in the NR system, or can also be a component or part of the equipment that constitutes the base station Wait.
  • the network device may also be a vehicle-mounted device. It should be understood that, in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network device are not limited.
  • the terminal involved in this disclosure may also be referred to as terminal equipment, user equipment (UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc., which are A device that provides voice and/or data connectivity.
  • the terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some examples of terminals are: smart phones (Mobile Phone), Pocket Computers (Pocket Personal Computer, PPC), Pocket PCs, Personal Digital Assistants (PDAs), notebook computers, tablet computers, wearable devices, or Vehicle equipment, etc.
  • V2X vehicle-to-vehicle
  • the terminal device may also be a vehicle-mounted device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.
  • cell selection or reselection is performed.
  • the embodiments of the present disclosure are mainly applicable to the process of cell selection or reselection.
  • S criterion and R criterion are involved for cell selection or reselection.
  • the S criterion mainly refers to Srxlev>0 and Squal>0.
  • Srxlev is the cell selection level
  • Squal is the cell selection quality. The cell selected or reselected by the terminal needs to meet the S criterion.
  • the terminal may choose not to perform measurement on the neighboring cells of the same frequency.
  • SIntraSearchP is the RSRP signal level threshold used to start the same frequency measurement
  • SIntraSearchQ is the RSRQ signal quality threshold used to start the same frequency measurement.
  • the R criterion mainly refers to:
  • Rs is the R value of the serving cell
  • Rn is the R value of the neighboring cell
  • Qmeas,s is the RSRP measurement value of the serving cell
  • Qmeas,n is the RSRP measurement value of the neighboring cell
  • Qhyst is the cell reselection hysteresis value
  • Qoffsettemp is Temporary offset value
  • Qoffset is the offset value.
  • the above-mentioned method for cell reselection based on the S criterion and the R criterion is mainly applicable to terrestrial networks.
  • the NTN network was introduced.
  • the network characteristic of NTN network is the large cell radius. For an NTN network with a large cell radius, where the terminal is at the center or edge of the cell, the difference in RSRP or RSRQ is small, and the large cell radius results in a large cell overlap area.
  • cell reselection based on the S criterion and the R criterion will cause the terminal to perform cell reselection in two cells back and forth, and if the cell reselection is performed based on the S criterion and the R criterion , It is difficult to configure reasonable cell reselection parameters.
  • the method of cell reselection based on the S criterion and the R criterion cannot well solve the problems encountered by the terminal during cell selection/reselection in the NTN network.
  • a network device provides a terminal with reference location information of a cell, and the reference location information is used to determine the reference distance of the cell.
  • the reference distance indicates the distance at which a cell can provide good network services.
  • the good network service provided by the cell can be understood as the signal quality of the cell is higher than the specified signal quality threshold.
  • the reference distance provided by the network is usually smaller than the actual coverage distance of the cell, where the actual coverage distance of the cell is characterized by the cell radius.
  • the terminal When the terminal performs cell reselection, it performs cell reselection according to the reference distance of the cell and the actual distance between the terminal and the cell center. It can combine the distance between the terminal and the cell to perform cell reselection, and then it can be applied to the cell reselection of NTN network with a large cell radius. select.
  • Fig. 2 is a flow chart showing a method for cell reselection according to an exemplary embodiment. As shown in Fig. 2, the following steps are included. Among them, the cell reselection method shown in FIG. 2 can be applied to a terminal, and of course can also be applied to other devices that can execute the following related methods.
  • step S11 the reference distance of the cell is obtained, and the actual distance between the terminal and the center of the cell is determined.
  • the cell corresponding to the reference distance and the actual distance may be the serving cell of the terminal, or the neighboring cell of the terminal, or may also be understood as a candidate cell included in the candidate list for cell reselection.
  • the reference distance can be determined by the cell reference location information provided by the NTN network to the terminal.
  • the reference location information of the cell can be defined by the network equipment through a system broadcast message.
  • the reference location information of the cell is mainly used to determine the reference distance of the cell.
  • the reference location information of the cell and the reference distance of the cell are sometimes used interchangeably, but those skilled in the art should understand its meaning.
  • step S12 cell reselection is performed according to the reference distance of the cell and the actual distance between the terminal and the cell center.
  • the terminal performs cell reselection according to the reference distance of the cell and the actual distance between the terminal and the cell center when performing cell reselection, so as to combine the distance between the terminal and the cell to perform the cell reselection, which is suitable for the large cell radius.
  • NTN network cell reselection NTN network cell reselection.
  • Fig. 3 is a flow chart showing a method for cell reselection according to an exemplary embodiment. As shown in Fig. 3, the method includes the following steps. Among them, the cell reselection method shown in FIG. 3 can be applied to network equipment, and of course, can also be applied to other equipment that can execute the following related methods.
  • step S21 the reference distance of the cell is sent, and the reference distance is used for the terminal to perform cell reselection according to the reference distance and the actual distance between the terminal and the cell center.
  • the network device provides the reference distance of the cell through a system broadcast message.
  • the terminal obtains the reference distance of the cell according to the system broadcast message of the serving cell and/or neighboring cell.
  • the actual distance between the terminal and the cell center may be determined by the terminal according to the actual location of the terminal and the actual location information of the cell, or may be determined by the network equipment according to the actual location of the terminal and the actual location information of the cell.
  • the location information of the terminal is determined, and the cell location information provided by the network device is obtained.
  • the cell location information provided by the network device can be determined through the ephemeris information (network location information of the cell) included in the system broadcast message.
  • the network device sends cell location information to the terminal.
  • the terminal obtains the cell location information, and determines the actual distance between the terminal and the cell center according to the location information of the terminal and the cell location information.
  • the terminal determines the location information of the terminal and sends the location information of the terminal to the network device.
  • the location information of the terminal sent by the terminal to the network device may be reported according to the measurement of the terminal, such as the measurement value related to the location reported by the terminal.
  • the network device obtains the location information of the terminal, and determines the actual distance between the terminal and the cell center according to the location information of the terminal and cell location information (ephemeris information).
  • the location information of the terminal can be determined according to the measurement report of the terminal.
  • the network device calculates the location information of the terminal according to the location-related measurement values reported by the terminal. After determining the actual distance between the terminal and the cell center, the network device sends the determined actual distance between the terminal and the cell center to the terminal. The terminal obtains the actual distance between the terminal and the cell center determined by the network equipment according to the location information of the terminal and the cell location information to determine the actual distance between the terminal and the cell center.
  • Dref is used to represent the reference distance of the cell
  • Dmeasure is the actual distance between the terminal and the center of the cell.
  • the measurement condition under which the terminal does not start the measurement on the neighboring cells of the same frequency can be determined based on the Dref and Dmeasure.
  • the terminal may choose not to measure the same-frequency neighboring cells when Srxlev>SIntraSearchP, Squal>SIntraSearchQ, and Dref>Dmeasure. That is, in response to the service cell of the terminal satisfying Srxlev>SIntraSearchP, and Squal>SIntraSearchQ, and Dref>Dmeasure, the terminal may choose not to measure the neighboring cells of the same frequency.
  • the conditions that the cell obtained by performing cell reselection needs to meet can be determined according to Dref and Dmeasure.
  • the cell obtained by performing cell reselection according to Dref and Dmeasure satisfies: Dref>Dmeasure.
  • the cell obtained by cell reselection needs to meet the S criterion, that is, the cell obtained by cell reselection according to Dref and Dmeasure needs to meet Srxlev>0, Squal>0, and Dref>Dmeasure.
  • a cell for cell reselection according to Dref and Dmeasure can be understood as a candidate cell included in the candidate list for cell reselection according to the S criterion.
  • the candidate cell may include the serving cell of the terminal or the terminal Neighbouring cell.
  • the target cell obtained by cell reselection according to Dref and Dmeasure can be understood as one of the cells that satisfy the S criterion.
  • the criterion involved in cell reselection that satisfies Srxlev>0, Squal>0, and Dref>Dmeasure may be a newly defined S criterion.
  • the newly defined S criterion can be:
  • D Dref-Dmeasure.
  • Dmeasure is the distance between the terminal and the center of the target cell
  • Dref is the reference distance of the target cell
  • Srxlex is the target cell selection level
  • Squal is the target cell selection quality. It is understandable that the cell obtained by performing cell reselection according to Dref and Dmeasure in the embodiment of the present disclosure needs to meet the above-mentioned newly defined S criterion.
  • the cell obtained by performing cell reselection according to Dref and Dmeasure in the embodiment of the present disclosure may be a serving cell before the terminal performs cell reselection, or may be a neighboring cell of the terminal.
  • the Dref and Dmeasure are combined to perform cell reselection.
  • Fig. 4 shows a schematic flowchart of cell reselection according to Dref and Dmeasure shown in an exemplary embodiment of the present disclosure. Refer to Figure 4, including the following steps.
  • step S31 the terminal determines the R values of multiple cells including neighboring cells and serving cells according to the R criterion for cell reselection.
  • step S32 in response to the presence of neighboring cells with an R value higher than the R value of the serving cell, and the neighboring cells satisfy the S criterion for cell reselection, the terminal selects Dref ⁇ Dmeasure from neighboring cells with an R value higher than the R value of the serving cell. Neighboring cell.
  • the terminal needs to combine Dref and Dmeasure to determine whether to reselect To the neighboring cell. For example, the terminal selects a neighboring cell with Dref ⁇ Dmeasure from neighboring cells with an R value higher than the R value of the serving cell.
  • the terminal When the terminal selects a neighbor cell with Dref ⁇ Dmeasure from neighbor cells with an R value higher than the R value of the serving cell, it can determine whether to select a neighbor cell based on whether there is a neighbor cell with Dref ⁇ Dmeasure among the neighbor cells with an R value higher than the R value of the serving cell.
  • the cell is used as the reselected cell.
  • step S33a in response to the presence of a neighboring cell with Dref ⁇ Dmeasure among neighboring cells with an R value higher than the R value of the serving cell, the neighboring cell with the largest R value among the neighboring cells with Dref ⁇ Dmeasure is selected as the reselected cell.
  • step S33b in response to the neighboring cells whose R value is higher than the serving cell's R value, there is no neighboring cell with Dref ⁇ Dmeasure, and cell reselection is performed according to the Dref and Dmeasure of the serving cell.
  • the neighboring cell with the largest R value is selected as the reselected cell among the neighboring cells with the R value higher than the R value of the serving cell.
  • Dref ⁇ Dmeasure Dref ⁇ Dmeasure
  • the above cell reselection method can be used to achieve reselection to the neighboring cell when the R value of the neighboring cell is greater than the serving cell, and the neighboring cell's reference distance is greater than or equal to the actual distance. Further, in response to a neighboring cell that does not meet the distance requirement between Dref and Dmeasure, if the serving cell meets the distance requirement, camp on the serving cell. In response to the lack of neighboring cells that meet the distance requirements between Dref and Dmeasure, and the serving cell does not meet the distance requirements, camp on a neighboring cell with a high R value.
  • the terminal may perform cell reselection according to the newly defined S criterion.
  • Fig. 5 shows a schematic flowchart of cell reselection according to Dref and Dmeasure shown in an exemplary embodiment of the present disclosure. Refer to Figure 5, including the following steps.
  • step S41 the terminal selects a cell satisfying the newly defined S criterion according to the newly defined S criterion (Srxlev>0 and Squal>0 and D>0).
  • step S42 among the selected cells satisfying the newly defined S criterion, the R values of multiple cells are determined according to the cell reselection R criterion.
  • step S43 in response to determining that the R value of the neighboring cell is higher than the R value of the serving cell, among the neighboring cells having the R value higher than the R value of the serving cell, the neighboring cell with the largest R value is selected as the reselected cell.
  • Dref and Dmeasure are applied to neighbor cell measurement.
  • the S criterion and R criterion are applicable to NTN network cell reselection with a large cell radius. Selecting a cell that satisfies Dref>Dmeasure can prevent the terminal from performing cell reselection in the two cells back and forth.
  • the cell reselection method provided in the embodiments of the present disclosure is also applicable to the process of interaction between the terminal and the network device.
  • the network device defines Dref through a system broadcast message.
  • the terminal obtains the Dref of each cell from the system broadcast messages of the serving cell and/or neighboring cells, and obtains the ephemeris information (cell location information) from the system broadcast messages.
  • the terminal determines its location, such as determining its own location based on GPS, and determining the Dmeasure between it and the cell center in combination with the ephemeris information obtained from the network device.
  • the terminal When the terminal performs cell selection or reselection, it selects multiple cells that meet the newly defined S criterion involved in the above solution, and applies the R criterion to the selected cell. The terminal reselects to the cell with the largest R value. If the R value is the largest If the cell of is the current serving cell, the terminal does not perform cell reselection, and it still camps on the current cell. Or, when the terminal performs cell selection or reselection, it selects multiple cells that meet the existing S criterion, applies the R criterion to the selected cells, and then combines Dref and Dmeasure to perform cell reselection.
  • the embodiment of the present disclosure also provides a cell reselection device.
  • the cell reselection apparatus in order to implement the above-mentioned functions, includes hardware structures and/or software modules corresponding to each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 6 is a block diagram showing a device for cell reselection according to an exemplary embodiment.
  • the cell reselection device 100 includes an acquisition unit 101 and a processing unit 102.
  • the acquiring unit 101 is configured to acquire the reference distance of the cell and determine the actual distance between the terminal and the center of the cell.
  • the processing unit 102 is configured to perform cell reselection according to the reference distance and the actual distance.
  • the cell includes the serving cell of the terminal, and the processing unit 102 is further configured to respond to the cell selection level being greater than the reference signal received power signal level threshold for starting the same-frequency measurement, and the cell selection quality being greater than the starting same-frequency measurement.
  • the reference signal reception quality signal quality threshold value of the frequency measurement, and the reference distance of the serving cell is greater than the actual distance between the terminal and the center of the serving cell, then the measurement is not performed on the neighboring cells of the same frequency.
  • the target cell obtained by cell reselection based on the reference distance and the actual distance meets the following requirements: the cell selection level of the target cell is greater than 0, the cell selection quality of the target cell is greater than 0, and the reference distance of the target cell is greater than the terminal The actual distance from the center of the target cell.
  • the processing unit 102 is configured to perform cell reselection based on the reference distance and the actual distance in the following manner: determine the R values of multiple cells according to the R criterion for cell reselection, and the multiple cells include neighboring cells and Service area. In response to determining that the R value of the neighboring cell is higher than the R value of the serving cell, and the neighboring cell satisfies the S criterion for cell reselection, select neighboring cells whose reference distance is greater than or equal to the actual distance from neighboring cells whose R value is higher than the R value of the serving cell .
  • the neighboring cell with the largest R value among neighboring cells whose reference distance is greater than or equal to the actual distance is selected as the reselected cell .
  • the neighboring cells whose R value is higher than the R value of the serving cell there is no neighboring cell whose reference distance is greater than or equal to the actual distance, and cell reselection is performed according to the reference distance of the serving cell and the actual distance between the terminal and the center of the serving cell.
  • the processing unit 102 is configured to perform cell reselection according to the reference distance of the serving cell and the actual distance between the terminal and the center of the serving cell in the following manner:
  • camp on the serving cell In response to the reference distance of the serving cell being greater than or equal to the actual distance between the terminal and the center of the serving cell, camp on the serving cell. In response to the reference distance of the serving cell being less than the actual distance between the terminal and the center of the serving cell, the neighboring cell with the largest R value is selected as the reselected cell among the neighboring cells whose R value is higher than the R value of the serving cell.
  • the processing unit 102 is configured to perform cell reselection according to the reference distance and the actual distance in the following manner:
  • the cell selection quality is greater than 0, and the reference distance is greater than the actual distance.
  • the R values of multiple cells are determined according to the cell reselection R criterion.
  • the neighboring cell with the largest R value is selected as the reselected cell among the neighboring cells with the R value higher than the R value of the serving cell.
  • the acquiring unit 101 is configured to determine the actual distance between the terminal and the cell center in the following manner:
  • the acquiring unit 101 is configured to determine the actual distance between the terminal and the cell center in the following manner: determine the location information of the terminal, and send the location information to the network device. Obtain the actual distance between the terminal and the cell center determined by the network device according to the location information of the terminal and the cell location information.
  • the acquiring unit 101 is configured to acquire the reference distance of the cell in the following manner: acquiring the reference distance of the cell according to the system broadcast message of the serving cell and/or neighboring cells.
  • Fig. 7 is a block diagram showing a cell reselection device according to an exemplary embodiment.
  • the cell reselection apparatus 200 includes a sending unit 201.
  • the sending unit 201 is configured to send a reference distance of a cell, and the reference distance is used for the terminal to perform cell reselection according to the reference distance and the actual distance between the terminal and the cell center.
  • the sending unit 201 is further configured to send cell location information, which is used by the terminal to determine the actual distance.
  • the cell reselection apparatus 200 further includes a sum processing unit 202.
  • the acquiring unit 203 is configured to acquire location information of the terminal.
  • the processing unit 202 is further configured to determine the actual distance between the terminal and the cell center according to the location information of the terminal and the cell location information.
  • the sending unit is also configured to send the actual distance to the terminal.
  • the target cell reselected by the terminal according to the actual distance between the terminal and the cell center and the reference distance satisfies: the cell selection level of the target cell is greater than 0, the cell selection quality of the target cell is greater than 0, and the reference of the target cell The distance is greater than the actual distance between the terminal and the center of the target cell.
  • Fig. 8 is a block diagram showing a device 300 for cell reselection according to an exemplary embodiment.
  • the device 300 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the device 300 may include one or more of the following components: a processing component 302, a memory 304, a power component 306, a multimedia component 308, an audio component 310, an input/output (I/O) interface 312, a sensor component 314, and Communication component 316.
  • the processing component 302 generally controls the overall operations of the device 300, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 302 may include one or more modules to facilitate the interaction between the processing component 302 and other components.
  • the processing component 302 may include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.
  • the memory 304 is configured to store various types of data to support the operation of the device 300. Examples of such data include instructions for any application or method operating on the device 300, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 304 can be implemented by any type of volatile or non-volatile storage devices or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • the power component 306 provides power to various components of the device 300.
  • the power component 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 300.
  • the multimedia component 308 includes a screen that provides an output interface between the device 300 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 the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 308 includes a front camera and/or a rear camera. When the device 300 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 camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 310 is configured to output and/or input audio signals.
  • the audio component 310 includes a microphone (MIC), and when the device 300 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal.
  • the received audio signal can be further stored in the memory 304 or sent via the communication component 316.
  • the audio component 310 further includes a speaker for outputting audio signals.
  • the I/O interface 312 provides an interface between the processing component 302 and a peripheral interface module.
  • the above-mentioned peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 314 includes one or more sensors for providing the device 300 with various aspects of state evaluation.
  • the sensor component 314 can detect the open/close state of the device 300 and the relative positioning of components.
  • the component is the display and the keypad of the device 300.
  • the sensor component 314 can also detect the position change of the device 300 or a component of the device 300. , The presence or absence of contact between the user and the device 300, the orientation or acceleration/deceleration of the device 300, and the temperature change of the device 300.
  • the sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 316 is configured to facilitate wired or wireless communication between the apparatus 300 and other devices.
  • the device 300 can access a wireless network according to a communication standard, such as WiFi, 2G, or 3G, or a combination thereof.
  • the communication component 316 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 further includes a near field communication (NFC) module to facilitate short-range 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
  • the apparatus 300 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component is used to implement the above method.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing devices
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic component is used to implement the above method.
  • non-transitory computer-readable storage medium including instructions, such as the memory 304 including instructions, which may be executed by the processor 320 of the device 300 to complete the foregoing 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, etc.
  • Fig. 9 is a block diagram showing a device 400 for cell reselection according to an exemplary embodiment.
  • the apparatus 400 may be provided as a network device, such as a base station or the like.
  • the apparatus 400 includes a processing component 422, which further includes one or more processors, and a memory resource represented by a memory 432, for storing instructions executable by the processing component 422, such as application programs.
  • the application program stored in the memory 432 may include one or more modules each corresponding to a set of instructions.
  • the processing component 422 is configured to execute instructions to perform the above-mentioned methods.
  • the device 400 may also include a power component 426 configured to perform power management of the device 400, a wired or wireless network interface 450 configured to connect the device 400 to a network, and an input output (I/O) interface 458.
  • the device 400 can operate according to an operating system stored in the memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • non-transitory computer-readable storage medium including instructions, such as the memory 432 including instructions, which may be executed by the processing component 422 of the device 400 to complete the foregoing 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, etc.
  • plural refers to two or more than two, and other quantifiers are similar.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the singular forms “a”, “said” and “the” are also intended to include plural forms, unless the context clearly indicates other meanings.
  • first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, expressions such as “first” and “second” can be used interchangeably.
  • first information may also be referred to as second information
  • second information may also be referred to as first information.
  • connection includes a direct connection between the two without other components, and also includes an indirect connection between the two with other elements.

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Abstract

本公开是关于一种小区重选方法、小区重选装置及存储介质。小区重选方法包括：获取小区的参考距离，并确定终端与所述小区中心的实际距离；根据所述参考距离和所述实际距离进行小区重选。本公开能够结合终端和小区的距离情况进行小区重选，进而能够适用于小区半径大的NTN网络小区重选。

Description

小区重选方法、小区重选装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及小区重选方法、小区重选装置及存储介质。
背景技术
相关技术中，针对陆地网络，终端主要基于S准则和R准则进行小区重选。
随着5G网络的发展，引入了非陆地网络(Non-terrestrial networks，NTN)。对于NTN网络，小区半径大，终端在小区中心或者边缘，其参考信号接收功率(reference signal received power，RSRP)或者参考信号接收质量(reference signal received quality，RSRQ)差异较小，并且小区半径大导致其小区重叠面积较大。因此，在终端移动引起信道衰落(例如遮挡)时，基于S准则和R准则进行小区重选，会导致终端来回在两个小区进行小区重选，并且如果基于S准则和R准则进行小区重选，较难配置合理的小区重选参数。
故，如何提供一种适用于NTN网络的小区重选方式，是需要亟需解决的问题。
发明内容
为克服相关技术中存在的问题，本公开提供一种小区重选方法、小区重选装置及存储介质。
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：
获取小区的参考距离，并确定终端与所述小区中心的实际距离；根据所述参考距离和所述实际距离进行小区重选。
一种实施方式中，所述小区包括所述终端的服务小区，所述方法还包括：
响应于小区选择电平大于启动同频测量的参考信号接收功率信号电平门限值、小区选择质量大于启动同频测量的参考信号接收质量信号质量门限值，且服务小区的参考距离大于终端与服务小区中心的实际距离，则选择不对同频邻小区进行测量。
另一种实施方式中，所述根据所述参考距离和所述实际距离进行小区重选得到的目标小区满足：所述目标小区的小区选择电平大于0、所述目标小区的小区选择质量大于0、且所述目标小区的参考距离大于所述终端与所述目标小区中心的实际距离。
又一种实施方式中，所述根据所述参考距离和所述实际距离进行小区重选，包括：
根据小区重选的R准则确定多个小区的R值，所述多个小区中包括邻小区和服务小区；
响应于所述确定的邻小区R值高于服务小区R值，且所述邻小区满足小区重选的S准则，从所述R值高于服务小区R值的邻小区中选择参考距离大于或等于实际距离的邻小区；
响应于所述R值高于服务小区R值的邻小区中存在参考距离大于或等于实际距离的邻小区，在所述参考距离大于或等于实际距离的邻小区中选择R值最大的邻小区作为重选的小区；
响应于所述R值高于服务小区R值的邻小区中不存在参考距离大于或等于实际距离的邻小区，根据服务小区的参考距离以及所述终端与服务小区中心的实际距离，进行小区重选。
又一种实施方式中，根据服务小区的参考距离以及终端与服务小区中心的实际距离，进行小区重选，包括：
响应于所述服务小区的参考距离大于或等于终端与服务小区中心的实际距离，驻留在服务小区；响应于所述服务小区的参考距离小于终端与服务小区中心的实际距离，在R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
又一种实施方式中，所述根据所述参考距离和所述实际距离进行小区重选，包括：
选择满足小区选择电平大于0、小区选择质量大于0、且参考距离大于实际距离的小区；在所述选择出的小区中根据小区重选R准则确定多个小区的R值；响应于所述确定的邻小区R值高于服务小区R值，在所述R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
又一种实施方式中，确定所述终端与所述小区中心的实际距离，包括：
确定所述终端的位置信息，并获取网络设备提供的小区位置信息；根据所述终端的位置信息以及所述小区位置信息，确定所述终端与所述小区中心的实际距离。
又一种实施方式中，确定所述终端与所述小区中心的实际距离，包括：
确定所述终端的位置信息，并向网络设备发送所述位置信息；获取所述网络设备根据所述终端的位置信息以及小区位置信息确定的所述终端与所述小区中心的实际距离。
又一种实施方式中，所述获取小区的参考距离，包括：
根据服务小区和/或邻小区的系统广播消息，获取小区的参考距离。
根据本公开实施例第二方面，提供一种小区重选方法，包括：
发送小区的参考距离，所述参考距离用于终端根据所述参考距离以及所述终端与小区中心的实际距离进行小区重选。
一种实施方式中，所述小区重选方法还包括：发送小区位置信息，所述小区位置信息用于所述终端确定所述实际距离。
一种实施方式中，所述小区重选方法还包括：获取终端的位置信息；根据所述终端的位置信息以及小区位置信息确定所述终端与小区中心的实际距离；向所述终端发送所述实 际距离。
又一种实施方式中，所述终端根据所述终端与小区中心的实际距离以及所述参考距离重选的目标小区满足：所述目标小区的小区选择电平大于0、所述目标小区的小区选择质量大于0、且所述目标小区的参考距离大于所述终端与所述目标小区中心的实际距离。
根据本公开实施例第三方面，提供一种小区重选装置，包括：
获取单元，被配置为获取小区的参考距离，并确定终端与所述小区中心的实际距离；处理单元，被配置为根据所述参考距离和所述实际距离进行小区重选。
一种实施方式中，所述小区包括所述终端的服务小区，所述处理单元还被配置为：
响应于小区选择电平大于启动同频测量的参考信号接收功率信号电平门限值、小区选择质量大于启动同频测量的参考信号接收质量信号质量门限值，且服务小区的参考距离大于所述终端与服务小区中心的实际距离，则选择不对同频邻小区进行测量。
另一种实施方式中，根据所述参考距离和所述实际距离进行小区重选得到的目标小区满足：所述目标小区的小区选择电平大于0、所述目标小区的小区选择质量大于0、且所述目标小区的参考距离大于所述终端与所述目标小区中心的实际距离。
又一种实施方式中，所述处理单元被配置为采用如下方式根据所述参考距离和所述实际距离进行小区重选：根据小区重选的R准则确定多个小区的R值，所述多个小区中包括邻小区和服务小区；响应于所述确定的邻小区R值高于服务小区R值，且所述邻小区满足小区重选的S准则，从所述R值高于服务小区R值的邻小区中选择参考距离大于或等于实际距离的邻小区；响应于所述R值高于服务小区R值的邻小区中存在参考距离大于或等于实际距离的邻小区，在所述参考距离大于或等于实际距离的邻小区中选择R值最大的邻小区作为重选的小区；响应于所述R值高于服务小区R值的邻小区中不存在参考距离大于或等于实际距离的邻小区，根据服务小区的参考距离以及所述终端与服务小区中心的实际距离，进行小区重选。
又一种实施方式中，所述处理单元被配置为采用如下方式根据服务小区的参考距离以及终端与服务小区中心的实际距离，进行小区重选：
响应于所述服务小区的参考距离大于或等于终端与服务小区中心的实际距离，驻留在服务小区；响应于所述服务小区的参考距离小于终端与服务小区中心的实际距离，在R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
又一种实施方式中，所述处理单元被配置为采用如下方式根据所述参考距离和所述实际距离进行小区重选：
选择满足小区选择电平大于0、小区选择质量大于0、且参考距离大于实际距离的小 区；在所述选择出的小区中根据小区重选R准则确定多个小区的R值；响应于所述确定的邻小区R值高于服务小区R值，在所述R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
又一种实施方式中，所述获取单元被配置为采用如下方式确定所述终端与所述小区中心的实际距离：
确定所述终端的位置信息，并获取网络设备提供的小区位置信息；根据所述终端的位置信息以及所述小区位置信息，确定所述终端与所述小区中心的实际距离。
又一种实施方式中，所述获取单元被配置为采用如下方式确定所述终端与所述小区中心的实际距离：
确定所述终端的位置信息，并向网络设备发送所述位置信息；获取所述网络设备根据所述终端的位置信息以及小区位置信息确定的所述终端与所述小区中心的实际距离。
又一种实施方式中，所述获取单元被配置为采用如下方式获取小区的参考距离：根据服务小区和/或邻小区的系统广播消息，获取小区的参考距离。
根据本公开实施例第四方面，提供一种小区重选装置，包括：
发送单元，被配置为发送小区的参考距离，所述参考距离用于终端根据所述参考距离以及所述终端与小区中心的实际距离进行小区重选。
一种实施方式中，所述发送单元还被配置为：发送小区位置信息，所述小区位置信息用于所述终端确定所述实际距离。
另一种实施方式中，所述小区重选装置还包括获取单元和处理单元，所述获取单元被配置为：获取终端的位置信息。所述处理单元还被配置为：根据所述终端的位置信息以及小区位置信息确定所述终端与小区中心的实际距离。所述发送单元还被配置为：向所述终端发送所述实际距离。
又一种实施方式中，所述终端根据所述参考距离以及所述终端与小区中心的实际距离进行小区重选得到的目标小区满足：所述目标小区的小区选择电平大于0、所述目标小区的小区选择质量大于0、且所述目标小区的参考距离大于所述终端与所述目标小区中心的实际距离。
根据本公开实施例第五方面，提供一种小区重选装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第一方面或者第一方面任意一种实施方式中所述的小区重选方法。
根据本公开实施例第六方面，提供一种小区重选装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第二方面或者第二方面任意一种实施方式中所述的小区重选方法。
根据本公开实施例第七方面，提供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第一方面或者第一方面任意一种实施方式中所述的小区重选方法。
根据本公开实施例第八方面，提供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网络设备的处理器执行时，使得网络设备能够执行第二方面或者第二方面任意一种实施方式中所述的小区重选方法。
本公开的实施例提供的技术方案可以包括以下有益效果：终端根据小区的参考距离以及终端与小区中心的实际距离进行小区重选，从而结合终端和小区的距离情况进行小区重选，进而能够适用于小区半径大的NTN网络小区重选。
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通信系统架构图。
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根据小区的参考距离，以及终端与小区中心的实际距离进行小区重选的方法流程图。
图5是根据一示例性实施例示出的一种根据小区的参考距离，以及终端与小区中心的实际距离进行小区重选的方法流程图。
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。
图7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8是根据一示例性实施例示出的一种用于小区重选装置的框图。
图9是根据一示例性实施例示出的一种装置的框图。
具体实施方式
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。
本公开实施例提供的信息发送方法可应用于图1所示的无线通信系统中。参阅图1所示，该无线通信系统中包括终端和网络设备。终端和网络设备之间通过无线资源进行信息的发送与接收。
可以理解的是，图1所示的无线通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括的网络设备数量和终端数量不做限定。
进一步可以理解的是，本公开实施例的无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，基站)、家庭基站、无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、 笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
终端与网络设备进行通信过程中会进行小区的选择或重选。本公开实施例主要适用于进行小区选择或重选的过程。相关技术中，针对小区选择或重选涉及S准则和R准则。
其中，S准则主要是指Srxlev>0并且Squal>0。其中，Srxlev为小区选择电平，Squal为小区选择质量。终端选择或重选的小区需要满足S准则。
进一步的，对于终端的同频测量，如果服务小区满足：Srxlev>SIntraSearchP且Squal>SIntraSearchQ，则终端可以选择不对同频邻小区进行测量。其中SIntraSearchP为用于启动同频测量的RSRP信号电平门限值，SIntraSearchQ为用于启动同频测量的RSRQ信号质量门限值。
其中，R准则主要是指：
Rs＝Qmeas,s+Qhyst–Qoffsettemp，Rn＝Qmeas,n-Qoffset-Qoffsettemp
其中，Rs为服务小区的R值，Rn为邻小区的R值，Qmeas,s为服务小区的RSRP测量值，Qmeas,n为邻小区的RSRP测量值，Qhyst为小区重选迟滞值，Qoffsettemp为临时偏移值；Qoffset为偏移值。其中，Qmeas、Qoffset以及Qoffsettemp的协议规定具体如下表1所示。
表1
Figure PCTCN2020093515-appb-000001
上述基于S准则和R准则进行小区重选的方式主要适用于陆地网络。但是随着通信技术的发展，引入了NTN网络。对于NTN网络的网络特点是小区半径大。对于小区半径大的NTN网络，终端在小区中心或者边缘，其RSRP或RSRQ差异较小，并且小区半径大导致其小区重叠面积较大。因此，在终端移动引起信道衰落(例如遮挡)时，基于S准则和R准则进行小区重选，会导致终端来回在两个小区进行小区重选，并且如果基于S准则和R准则进行小区重选，较难配置合理的小区重选参数。
故，针对NTN网络，由于其网络特点，基于S准则和R准则进行小区重选的方式，不能很好解决终端在NTN网络进行小区选择/重选时遇到的问题。
有鉴于此，本公开实施例提供一种小区重选方法，网络设备向终端提供小区的参考位置信息，该参考位置信息用于确定小区的参考距离。参考距离表示小区能够提供良好的网络服务的距离。当终端与小区中心的实际距离小于参考距离时，小区能够给该终端提供良好的网络服务。小区提供良好的网络服务可以理解为是小区信号质量高于指定的信号质量门限值。网络提供的参考距离通常小于小区的实际覆盖距离，其中，小区的实际覆盖距离通过小区半径表征。终端进行小区重选时根据小区的参考距离以及终端与小区中心的实际距离进行小区重选，能够结合终端和小区的距离情况进行小区重选，进而能够适用于小区半径大的NTN网络的小区重选。
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所示包括以下步骤。其中，图2所示的小区重选方法可以应用于终端，当然也可以应用于其他可以执行下述相关方法的设备中。
在步骤S11中，获取小区的参考距离，并确定终端与小区中心的实际距离。
本公开实施例中获取参考距离以及实际距离对应的小区可以是终端的服务小区，也可以是终端的邻小区，或者也可以理解为是进行小区重选的候选列表中包括的候选小区。
其中，参考距离可以通过NTN网络向终端提供的小区参考位置信息确定。其中，小区的参考位置信息可以由网络设备通过系统广播消息进行定义。本公开实施例中，小区的参考位置信息主要用于确定小区的参考距离，小区参考位置信息和小区的参考距离有时会交替使用，但本领域技术人员应理解其含义。
在步骤S12中，根据小区的参考距离，以及终端与小区中心的实际距离进行小区重选。
本公开实施例中，终端进行小区重选时根据小区的参考距离以及终端与小区中心的实际距离进行小区重选，以便结合终端和小区的距离情况进行小区重选，以适用于小区半径大的NTN网络的小区重选。
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，包括以下步骤。其中，图3所示的小区重选方法可以应用于网络设备，当然也可以应用于其他可以执行下述相关方法的设备中。
在步骤S21中，发送小区的参考距离，该参考距离用于终端根据参考距离以及终端与小区中心的实际距离进行小区重选。
一示例中，网络设备通过系统广播消息提供小区的参考距离。终端根据服务小区和/或邻小区的系统广播消息，获取小区的参考距离。
另一示例中，终端与小区中心的实际距离可以由终端根据终端的实际位置以及小区的实际位置信息进行确定，也可以由网络设备根据终端的实际位置以及小区的实际位置信息进行确定。
其中，终端根据终端的实际位置以及小区的实际位置信息进行确定时，确定终端的位置信息，并获取网络设备提供的小区位置信息。其中，网络设备提供的小区位置信息可以通过系统广播消息中包括的星历信息(小区的网络位置信息)确定。网络设备向终端发送小区位置信息。终端获取小区位置信息，并根据终端的位置信息以及小区位置信息，确定终端与小区中心的实际距离。
其中，网络设备根据终端的实际位置以及小区的实际位置信息进行确定时，终端确定终端的位置信息，并向网络设备发送终端的位置信息。其中，终端向网络设备发送终端的位置信息可以根据终端的测量进行上报，诸如终端上报和位置相关的测量值。网络设备获取终端的位置信息，并根据终端的位置信息以及小区位置信息(星历信息)确定终端与小区中心的实际距离。其中，网络设备获取终端的位置信息可以根据终端的测量上报确定终端的位置信息。例如，网络设备根据终端上报的和位置相关的测量值计算得到终端的位置信息。网络设备确定了终端与小区中心的实际距离后，向终端发送确定的终端与小区中心的实际距离。终端获取网络设备根据终端的位置信息以及小区位置信息确定的终端与小区中心的实际距离，以确定出终端与小区中心的实际距离。
本公开实施例以下结合实际应用对上述实施例涉及的小区重选方法进行说明。
本公开实施例中为描述方便，后续用Dref表示小区的参考距离，Dmeasure表示终端与小区中心的实际距离。
本公开实施例中，根据Dref和Dmeasure两个参数进行小区重选时，可以根据Dref和Dmeasure确定终端不启动同频邻小区进行测量的测量条件。一示例中，终端在确定了服务小区的Dref，以及终端与服务小区中心的Dmeasure后，可以在Srxlev>SIntraSearchP、且Squal>SIntraSearchQ，且Dref>Dmeasure时，选择不对同频邻小区进行测量。即，响应于终端的服务小区满足Srxlev>SIntraSearchP、且Squal>SIntraSearchQ，且Dref>Dmeasure时，终端可以选择不对同频邻小区进行测量。
本公开实施例中，根据Dref和Dmeasure两个参数进行小区重选时，可以根据Dref和Dmeasure确定进行小区重选得到的小区需满足的条件。一示例中，例如，根据Dref和Dmeasure进行小区重选得到的小区满足：Dref>Dmeasure。进一步的，本公开实施例中进行小区重选得到的小区需满足S准则，即根据Dref和Dmeasure进行小区重选得到的小区需满足Srxlev>0，且Squal>0，且Dref>Dmeasure。
本公开实施例中，根据Dref和Dmeasure进行小区重选的小区可以理解为是根据S准则进行小区重选的候选列表中包括的候选小区，该候选小区可以包括终端的服务小区，也可以包括终端的邻小区。根据Dref和Dmeasure进行小区重选得到的目标小区可以理解为是满足S准则的小区之一。
进一步可以理解的是，本公开实施例中满足Srxlev>0，且Squal>0，且Dref>Dmeasure进行小区重选涉及的准则可以是一种新定义的S准则。新定义的S准则可以是：
Srxlev>0且Squal>0且D>0。
其中，D＝Dref-Dmeasure。Dmeasure为终端与目标小区中心的距离，Dref为目标小区的参考距离，Srxlex为目标小区选择电平，Squal为目标小区选择质量。可以理解的是，本公开实施例中根据Dref和Dmeasure进行小区重选得到的小区需满足上述新定义的S准则。
进一步可以理解的是，本公开实施例中根据Dref和Dmeasure进行小区重选得到的小区可以是终端进行小区重选之前的服务小区，也可以是终端的邻小区。
一种实施方式中，本公开实施例中可以根据已有S准则和R准则进行小区重选后，再结合Dref和Dmeasure进行小区重选。
图4示出了本公开一示例性实施例中示出的根据Dref和Dmeasure进行小区重选的示意流程图。参阅图4所示，包括如下步骤。
在步骤S31中，终端根据小区重选的R准则确定包括邻小区和服务小区在内的多个小区的R值。
在步骤S32中，响应于存在R值高于服务小区R值的邻小区，且邻小区满足小区重选的S准则，终端从R值高于服务小区R值的邻小区中选择Dref≥Dmeasure的邻小区。
其中，存在R值高于服务小区R值的邻小区，即确定的邻小区R值高于服务小区R值，且邻小区满足小区重选的S准则，终端需要结合Dref和Dmeasure确定是否重选到邻小区。例如，终端从R值高于服务小区R值的邻小区中选择Dref≥Dmeasure的邻小区。
终端从R值高于服务小区R值的邻小区中选择Dref≥Dmeasure的邻小区时，可以根据R值高于服务小区R值的邻小区中是否存在Dref≥Dmeasure的邻小区，确定是否选择邻小区作为重选的小区。
在步骤S33a中，响应于R值高于服务小区R值的邻小区中存在Dref≥Dmeasure的邻小区，在Dref≥Dmeasure的邻小区中选择R值最大的邻小区作为重选的小区。
在步骤S33b中，响应于R值高于服务小区R值的邻小区中不存在Dref≥Dmeasure的邻小区，根据服务小区的Dref以及Dmeasure，进行小区重选。
一示例中，根据服务小区的Dref以及Dmeasure，进行小区重选时，响应于服务小区 的Dref≥Dmeasure的实际距离，驻留在服务小区。响应于服务小区的Dref＜Dmeasure，在R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
示例性实施例中，终端根据R准则对多个小区的R值进行排序。如果有N个邻小区的R值比服务小区的R值高，则从N个邻小区中选择出满足Dref≥Dmeasure的P个小区。再从P个小区中选择出R值最大的小区，如果P＞0，终端重选到该选择出的R值最大的小区。如果P＝0(即此时没有邻小区满足Dref≥Dmeasure)，如果服务小区满足Dref≥Dmeasure，则终端仍然驻留在服务小区，不进行小区重选。如果服务小区不满足Dref≥Dmeasure(Dref＜Dmeasure)，则终端重选到N个小区中R值最大的小区。
本公开实施例中，通过上述小区重选方法可以实现响应于邻小区R值大于服务小区，且邻小区参考距离大于或等于实际距离时重选到邻小区。进一步的，也可以实现响应于没有满足Dref以及Dmeasure之间距离要求的邻小区，如果服务小区满足距离要求，则驻留在服务小区。响应于没有满足Dref以及Dmeasure之间距离要求的邻小区，且服务小区也不满足距离要求，则驻留在R值高的邻小区。
另一种实施方式中，终端可以根据新定义的S准则进行小区重选。
图5示出了本公开一示例性实施例中示出的根据Dref和Dmeasure进行小区重选的示意流程图。参阅图5所示，包括如下步骤。
在步骤S41中，终端根据新定义的S准则(Srxlev>0且Squal>0且D>0)选择满足新定义的S准则的小区。
在步骤S42中，在选择出的满足新定义的S准则的小区中根据小区重选R准则确定多个小区的R值。
在步骤S43中，响应于确定的邻小区R值高于服务小区R值，在R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
本公开实施例中，终端根据Dref以及Dmeasure进行小区重选时，将Dref以及Dmeasure应用到邻小区测量，S准则和R准则之中，能够适用于小区半径大的NTN网络小区重选。选择满足Dref＞Dmeasure的小区，能够避免终端来回在两个小区进行小区重选。
本公开实施例中提供的小区重选方法也适用于终端和网络设备进行交互的过程中。一示例中，网络设备通过系统广播消息定义Dref。终端从服务小区和/或邻小区的系统广播消息中获取各个小区的Dref，以及从系统广播消息中获取星历信息(小区的位置信息)。终端确定其位置，例如根据GPS确定其自身位置，结合从网络设备处获取的星历信息确定其与小区中心的Dmeasure。当终端进行小区选择或者重选时，选择多个满足上述方案中涉及的新定义的S准则的小区，对所选择的小区应用R准则，终端重选到R值最大的小区，如 果R值最大的小区为当前服务小区，则终端不进行小区重选，则仍然驻留在当前小区。或者，当终端进行小区选择或者重选时，选择多个满足已有S准则的小区，对所选择的小区应用R准则，然后再结合Dref和Dmeasure进行小区重选。
本公开实施例对于终端和网络设备交互实现在非授权频段或授权频段中进行寻呼的过程可参阅上述实施例相关描述，在此不再赘述。
根据相同的构思，本公开实施例还提供一种小区重选装置。
可以理解的是，本公开实施例提供的小区重选装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图6是根据一示例性实施例示出的一种小区重选装置框图。参照图6，小区重选装置100包括获取单元101和处理单元102。其中，获取单元101，被配置为获取小区的参考距离，并确定终端与小区中心的实际距离。处理单元102，被配置为根据参考距离和实际距离进行小区重选。
一种实施方式中，小区包括终端的服务小区，处理单元102还被配置为：响应于小区选择电平大于启动同频测量的参考信号接收功率信号电平门限值、小区选择质量大于启动同频测量的参考信号接收质量信号质量门限值，且服务小区的参考距离大于终端与服务小区中心的实际距离，则选择不对同频邻小区进行测量。
另一种实施方式中，根据参考距离和实际距离进行小区重选得到的目标小区满足：目标小区的小区选择电平大于0、目标小区的小区选择质量大于0、且目标小区的参考距离大于终端与目标小区中心的实际距离。
又一种实施方式中，处理单元102被配置为采用如下方式根据参考距离和实际距离进行小区重选：根据小区重选的R准则确定多个小区的R值，多个小区中包括邻小区和服务小区。响应于确定的邻小区R值高于服务小区R值，且邻小区满足小区重选的S准则，从R值高于服务小区R值的邻小区中选择参考距离大于或等于实际距离的邻小区。响应于R值高于服务小区R值的邻小区中存在参考距离大于或等于实际距离的邻小区，在参考距离大于或等于实际距离的邻小区中选择R值最大的邻小区作为重选的小区。响应于R值高于服务小区R值的邻小区中不存在参考距离大于或等于实际距离的邻小区，根据服务小区的参考距离以及终端与服务小区中心的实际距离，进行小区重选。
又一种实施方式中，处理单元102被配置为采用如下方式根据服务小区的参考距离以及终端与服务小区中心的实际距离，进行小区重选：
响应于服务小区的参考距离大于或等于终端与服务小区中心的实际距离，驻留在服务小区。响应于服务小区的参考距离小于终端与服务小区中心的实际距离，在R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
又一种实施方式中，处理单元102被配置为采用如下方式根据参考距离和实际距离进行小区重选：
选择满足小区选择电平大于0、小区选择质量大于0、且参考距离大于实际距离的小区。在选择出的小区中根据小区重选R准则确定多个小区的R值。响应于确定的邻小区R值高于服务小区R值，在R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
又一种实施方式中，获取单元101被配置为采用如下方式确定终端与小区中心的实际距离：
确定终端的位置信息，并获取网络设备提供的小区位置信息。根据终端的位置信息以及小区位置信息，确定终端与小区中心的实际距离。
又一种实施方式中，获取单元101被配置为采用如下方式确定终端与小区中心的实际距离：确定终端的位置信息，并向网络设备发送位置信息。获取网络设备根据终端的位置信息以及小区位置信息确定的终端与小区中心的实际距离。
又一种实施方式中，获取单元101被配置为采用如下方式获取小区的参考距离：根据服务小区和/或邻小区的系统广播消息，获取小区的参考距离。
图7是根据一示例性实施例示出的一种小区重选装置框图。参照图7，小区重选装置200包括发送单元201。
发送单元201，被配置为发送小区的参考距离，参考距离用于终端根据参考距离以及终端与小区中心的实际距离进行小区重选。
一种实施方式中，发送单元201还被配置为：发送小区位置信息，小区位置信息用于终端确定实际距离。
另一种实施方式中，小区重选装置200还包括和处理单元202。获取单元203，获取单元203被配置为：获取终端的位置信息。处理单元202还被配置为：根据终端的位置信息以及小区位置信息确定终端与小区中心的实际距离。发送单元还被配置为：向终端发送实际距离。
又一种实施方式中，终端根据终端与小区中心的实际距离以及参考距离重选的目标小 区满足：目标小区的小区选择电平大于0、目标小区的小区选择质量大于0、且目标小区的参考距离大于终端与目标小区中心的实际距离。
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8是根据一示例性实施例示出的一种用于小区重选的装置300的框图。例如，装置300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8，装置300可以包括以下一个或多个组件：处理组件302，存储器304，电力组件306，多媒体组件308，音频组件310，输入/输出(I/O)接口312，传感器组件314，以及通信组件316。
处理组件302通常控制装置300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302可以包括一个或多个处理器320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302可以包括一个或多个模块，便于处理组件302和其他组件之间的交互。例如，处理组件302可以包括多媒体模块，以方便多媒体组件308和处理组件302之间的交互。
存储器304被配置为存储各种类型的数据以支持在装置300的操作。这些数据的示例包括用于在装置300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304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。
电力组件306为装置300的各种组件提供电力。电力组件306可以包括电源管理系统，一个或多个电源，及其他与为装置300生成、管理和分配电力相关联的组件。
多媒体组件308包括在所述装置300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308包括一个前置摄像头和/或后置摄像头。当装置300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系统或具有焦距和光学变焦能力。
音频组件310被配置为输出和/或输入音频信号。例如，音频组件310包括一个麦克风(MIC)，当装置300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304或经由通信组件316发送。在一些实施例中，音频组件310还包括一个扬声器，用于输出音频信号。
I/O接口312为处理组件302和外围接口模块之间提供接口，上述外围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314包括一个或多个传感器，用于为装置300提供各个方面的状态评估。例如，传感器组件314可以检测到装置300的打开/关闭状态，组件的相对定位，例如所述组件为装置300的显示器和小键盘，传感器组件314还可以检测装置300或装置300一个组件的位置改变，用户与装置300接触的存在或不存在，装置300方位或加速/减速和装置300的温度变化。传感器组件314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314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314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316被配置为便于装置300和其他设备之间有线或无线方式的通信。装置300可以接入根据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，通信组件316经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件316还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可根据射频识别(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300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304，上述指令可由装置300的处理器320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。
图9是根据一示例性实施例示出的一种用于小区重选的装置400的框图。例如，装置400可以被提供为网络设备，例如基站等。参照图9，装置400包括处理组件422，其进一步包括一个或多个处理器，以及由存储器432所代表的存储器资源，用于存储可由处理组 件422的执行的指令，例如应用程序。存储器432中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件422被配置为执行指令，以执行上述方法。
装置400还可以包括一个电源组件426被配置为执行装置400的电源管理，一个有线或无线网络接口450被配置为将装置400连接到网络，和一个输入输出(I/O)接口458。装置400可以操作根据存储在存储器432的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
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432，上述指令可由装置400的处理组件422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。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，除非有特殊说明，“连接”包括两者之间不存在其他构件的直接连接，也包括两者之间存在其他元件的间接连接。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
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 (30)

  1. 一种小区重选方法，其特征在于，包括：
    获取小区的参考距离，并确定终端与所述小区中心的实际距离；
    根据所述参考距离和所述实际距离进行小区重选。
  2. 根据权利要求1所述的小区重选方法，其特征在于，所述小区包括所述终端的服务小区，所述方法还包括：
    响应于小区选择电平大于启动同频测量的参考信号接收功率信号电平门限值、小区选择质量大于启动同频测量的参考信号接收质量信号质量门限值，且服务小区的参考距离大于所述终端与服务小区中心的实际距离，选择不对同频邻小区进行测量。
  3. 根据权利要求1所述的小区重选方法，其特征在于，所述根据所述参考距离和所述实际距离进行小区重选得到的目标小区满足：所述目标小区的小区选择电平大于0、所述目标小区的小区选择质量大于0、且所述目标小区的参考距离大于所述终端与所述目标小区中心的实际距离。
  4. 根据权利要求1或3所述的小区重选方法，其特征在于，所述根据所述参考距离和所述实际距离进行小区重选，包括：
    根据小区重选的R准则确定多个小区的R值，所述多个小区中包括邻小区和服务小区；
    响应于所述确定的邻小区R值高于服务小区R值，且所述邻小区满足小区重选的S准则，从所述R值高于服务小区R值的邻小区中选择参考距离大于或等于实际距离的邻小区；
    响应于所述R值高于服务小区R值的邻小区中存在参考距离大于或等于实际距离的邻小区，在所述参考距离大于或等于实际距离的邻小区中选择R值最大的邻小区作为重选的小区；
    响应于所述R值高于服务小区R值的邻小区中不存在参考距离大于或等于实际距离的邻小区，根据服务小区的参考距离以及所述终端与服务小区中心的实际距离，进行小区重选。
  5. 根据权利要求4所述的小区重选方法，其特征在于，所述根据服务小区的参考距离以及终端与服务小区中心的实际距离，进行小区重选，包括：
    响应于所述服务小区的参考距离大于或等于终端与服务小区中心的实际距离，驻留在服务小区；
    响应于所述服务小区的参考距离小于终端与服务小区中心的实际距离，在R值高于服 务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
  6. 根据权利要求1或3所述的小区重选方法，其特征在于，所述根据所述参考距离和所述实际距离进行小区重选，包括：
    选择满足小区选择电平大于0、小区选择质量大于0、且参考距离大于实际距离的小区；
    在所述选择出的小区中根据小区重选R准则确定多个小区的R值；
    响应于所述确定的邻小区R值高于服务小区R值，在所述R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
  7. 根据权利要求1所述的小区重选方法，其特征在于，所述确定所述终端与所述小区中心的实际距离，包括：
    确定所述终端的位置信息，并获取网络设备提供的小区位置信息；
    根据所述终端的位置信息以及所述小区位置信息，确定所述终端与所述小区中心的实际距离。
  8. 根据权利要求1所述的小区重选方法，其特征在于，所述确定所述终端与所述小区中心的实际距离，包括：
    确定所述终端的位置信息，并向网络设备发送所述位置信息；
    获取所述网络设备根据所述终端的位置信息以及小区位置信息确定的所述终端与所述小区中心的实际距离。
  9. 根据权利要求1所述的小区重选方法，其特征在于，所述获取小区的参考距离，包括：
    根据服务小区和/或邻小区的系统广播消息，获取小区的参考距离。
  10. 一种小区重选方法，其特征在于，包括：
    发送小区的参考距离，所述参考距离用于终端根据所述参考距离以及所述终端与小区中心的实际距离进行小区重选。
  11. 根据权利要求10所述的小区重选方法，其特征在于，所述方法还包括：
    发送小区位置信息，所述小区位置信息用于所述终端确定所述实际距离。
  12. 根据权利要求10所述的小区重选方法，其特征在于，所述方法还包括：
    获取终端的位置信息；
    根据所述终端的位置信息以及小区位置信息确定所述终端与小区中心的实际距离；
    向所述终端发送所述实际距离。
  13. 根据权利要求10至12中任意一项所述的小区重选方法，其特征在于，所述终端 根据所述参考距离以及所述终端与小区中心的实际距离进行小区重选得到的目标小区满足：所述目标小区的小区选择电平大于0、所述目标小区的小区选择质量大于0、且所述目标小区的参考距离大于所述终端与所述目标小区中心的实际距离。
  14. 一种小区重选装置，其特征在于，包括：
    获取单元，被配置为获取小区的参考距离，并确定终端与所述小区中心的实际距离；
    处理单元，被配置为根据所述参考距离和所述实际距离进行小区重选。
  15. 根据权利要求14所述的小区重选装置，其特征在于，所述小区包括所述终端的服务小区，所述处理单元还被配置为：
    响应于小区选择电平大于启动同频测量的参考信号接收功率信号电平门限值、小区选择质量大于启动同频测量的参考信号接收质量信号质量门限值，且服务小区的参考距离大于所述终端与服务小区中心的实际距离，选择不对同频邻小区进行测量。
  16. 根据权利要求14所述的小区重选装置，其特征在于，所述根据所述参考距离和所述实际距离进行小区重选得到的目标小区满足：所述目标小区的小区选择电平大于0、所述目标小区的小区选择质量大于0、且所述目标小区的参考距离大于所述终端与所述目标小区中心的实际距离。
  17. 根据权利要求14或16所述的小区重选装置，其特征在于，所述处理单元被配置为采用如下方式根据所述参考距离和所述实际距离进行小区重选：
    根据小区重选的R准则确定多个小区的R值，所述多个小区中包括邻小区和服务小区；
    响应于所述确定的邻小区R值高于服务小区R值，且所述邻小区满足小区重选的S准则，从所述R值高于服务小区R值的邻小区中选择参考距离大于或等于实际距离的邻小区；
    响应于所述R值高于服务小区R值的邻小区中存在参考距离大于或等于实际距离的邻小区，在所述参考距离大于或等于实际距离的邻小区中选择R值最大的邻小区作为重选的小区；
    响应于所述R值高于服务小区R值的邻小区中不存在参考距离大于或等于实际距离的邻小区，根据服务小区的参考距离以及所述终端与服务小区中心的实际距离，进行小区重选。
  18. 根据权利要求17所述的小区重选装置，其特征在于，所述处理单元被配置为采用如下方式根据服务小区的参考距离以及终端与服务小区中心的实际距离，进行小区重选：
    响应于所述服务小区的参考距离大于或等于终端与服务小区中心的实际距离，驻留在 服务小区；
    响应于所述服务小区的参考距离小于终端与服务小区中心的实际距离，在R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
  19. 根据权利要求14或16所述的小区重选装置，其特征在于，所述处理单元被配置为采用如下方式根据所述参考距离和所述实际距离进行小区重选：
    选择满足小区选择电平大于0、小区选择质量大于0、且参考距离大于实际距离的小区；
    在所述选择出的小区中根据小区重选R准则确定多个小区的R值；
    响应于所述确定的邻小区R值高于服务小区R值，在所述R值高于服务小区R值的邻小区中选择R值最大的邻小区作为重选的小区。
  20. 根据权利要求14所述的小区重选装置，其特征在于，所述获取单元被配置为采用如下方式确定所述终端与所述小区中心的实际距离：
    确定所述终端的位置信息，并获取网络设备提供的小区位置信息；
    根据所述终端的位置信息以及所述小区位置信息，确定所述终端与所述小区中心的实际距离。
  21. 根据权利要求14所述的小区重选装置，其特征在于，所述获取单元被配置为采用如下方式确定所述终端与所述小区中心的实际距离：
    确定所述终端的位置信息，并向网络设备发送所述位置信息；
    获取所述网络设备根据所述终端的位置信息以及小区位置信息确定的所述终端与所述小区中心的实际距离。
  22. 根据权利要求14所述的小区重选装置，其特征在于，所述获取单元被配置为采用如下方式获取小区的参考距离：
    根据服务小区和/或邻小区的系统广播消息，获取小区的参考距离。
  23. 一种小区重选装置，其特征在于，包括：
    发送单元，被配置为发送小区的参考距离，所述参考距离用于终端根据所述参考距离以及所述终端与小区中心的实际距离进行小区重选。
  24. 根据权利要求23所述的小区重选装置，其特征在于，所述发送单元还被配置为：
    发送小区位置信息，所述小区位置信息用于终端确定所述实际距离。
  25. 根据权利要求23所述的小区重选装置，其特征在于，所述装置还包括获取单元和处理单元，所述获取单元被配置为：获取终端的位置信息；
    所述处理单元还被配置为：根据所述终端的位置信息以及小区位置信息确定所述终端 与小区中心的实际距离；
    所述发送单元还被配置为：向所述终端发送所述实际距离。
  26. 根据权利要求23至25中任意一项所述的小区重选装置，其特征在于，所述终端根据所述参考距离以及所述终端与小区中心的实际距离进行小区重选得到的目标小区满足：所述目标小区的小区选择电平大于0、所述目标小区的小区选择质量大于0、且所述目标小区的参考距离大于所述终端与所述目标小区中心的实际距离。
  27. 一种小区重选装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至9中任意一项所述的小区重选方法。
  28. 一种小区重选装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求10至13中任意一项所述的小区重选方法。
  29. 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权利要求1至9中任意一项所述的小区重选方法。
  30. 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网络设备的处理器执行时，使得网络设备能够执行权利要求10至13中任意一项所述的小区重选方法。
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KR20230010726A (ko) 2023-01-19
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