WO2020029794A1 - 小区重选方法、终端及网络设备 - Google Patents

小区重选方法、终端及网络设备 Download PDF

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Publication number
WO2020029794A1
WO2020029794A1 PCT/CN2019/097238 CN2019097238W WO2020029794A1 WO 2020029794 A1 WO2020029794 A1 WO 2020029794A1 CN 2019097238 W CN2019097238 W CN 2019097238W WO 2020029794 A1 WO2020029794 A1 WO 2020029794A1
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Prior art keywords
cell
parameter
reselection
value
offset
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PCT/CN2019/097238
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English (en)
French (fr)
Inventor
梁敬
陈力
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维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to KR1020217007176A priority Critical patent/KR102454658B1/ko
Priority to EP19848302.6A priority patent/EP3836627A4/en
Priority to JP2021507028A priority patent/JP7246468B2/ja
Priority to SG11202101386PA priority patent/SG11202101386PA/en
Publication of WO2020029794A1 publication Critical patent/WO2020029794A1/zh
Priority to US17/171,968 priority patent/US11895544B2/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
    • H04W36/0005—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
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • 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
    • H04W36/0005—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
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H04W36/008375—Determination of triggering parameters for hand-off based on historical data
    • 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
    • H04W36/00838—Resource reservation for handover
    • 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
    • H04W36/0005—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
    • H04W36/0094—Definition of hand-off measurement parameters
    • 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
    • H04W36/247—Reselection being triggered by specific parameters by using coverage extension
    • 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
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • 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
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a cell reselection method, a terminal, and a network device.
  • RF channel radio frequency channel
  • the terminal may sequentially evaluate whether each frequency point has a suitable reselection of neighboring cells based on the priority order of the frequency points provided by the network equipment. If a suitable neighboring cell for reselection is detected, Then, a reselection process may be initiated to the cell at the frequency point.
  • the terminal when performing cell reselection, it is necessary to sort the neighboring cells that meet the conditions, and the parameters that determine whether the neighboring cells meet the conditions can be obtained through the system information broadcast by the network equipment, but the relevant parameters broadcast by the network equipment are based on frequency points (per- frequency), which cannot reflect the specific situation of the neighboring cell.
  • the terminal After the terminal reselects to a neighboring cell through the cell, it may be found that the cell cannot meet the reselection conditions and cannot reside in the cell. The terminal needs to be reselected again or Back to the source cell, causing problems with the ping-pong effect.
  • Some embodiments of the present disclosure provide a cell reselection method, a terminal, and a network device to solve the ping-pong effect problem of cell reselection.
  • some embodiments of the present disclosure provide a cell reselection method applied to a terminal, including:
  • reselection information related to cell reselection where the reselection information includes: cell-level reselection parameters of neighboring cells;
  • the cell reselection process is performed according to the cell-level reselection parameters and the reselection conditions for reselecting to neighboring cells.
  • some embodiments of the present disclosure further provide a terminal, including:
  • An obtaining module configured to obtain reselection information related to cell reselection, where the reselection information includes: cell-level reselection parameters of neighboring cells;
  • a reselection module is configured to perform a cell reselection process according to a cell-level reselection parameter and a reselection condition for reselecting to a neighboring cell.
  • some embodiments of the present disclosure provide a terminal.
  • the terminal includes a processor, a memory, and a computer program stored on the memory and running on the processor.
  • the computer program is executed by the processor, the cell reselection is implemented Method steps.
  • some embodiments of the present disclosure provide a cell reselection method, which is applied to a network device and includes:
  • Send reselection information related to cell reselection where the reselection information includes: cell-level reselection parameters of neighboring cells.
  • some embodiments of the present disclosure further provide a network device, including:
  • a sending module is configured to send reselection information related to cell reselection, where the reselection information includes: cell-level reselection parameters of neighboring cells.
  • some embodiments of the present disclosure provide a network device.
  • the network device includes a processor, a memory, and a computer program stored on the memory and running on the processor.
  • the computer program implements the foregoing when the computer program is executed by the processor. Steps of the cell reselection method.
  • some embodiments of the present disclosure provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the cell reselection method of the terminal or the network device described above. step.
  • the terminal can obtain cell-level reselection parameters of neighboring cells, and perform cell reselection based on the cell-level reselection parameters, which can ensure that the quality of the reselected cell meets the camping requirements To avoid the problem of unstable terminal connection after cell reselection.
  • FIG. 1 shows a block diagram of a mobile communication system applicable to some embodiments of the present disclosure
  • FIG. 2 is a schematic flowchart of a cell reselection method for a terminal according to some embodiments of the present disclosure
  • FIG. 3 is a schematic structural diagram of a module of a terminal according to some embodiments of the present disclosure.
  • FIG. 4 shows a block diagram of a terminal according to some embodiments of the present disclosure
  • FIG. 5 is a schematic flowchart of a cell reselection method for a network device according to some embodiments of the present disclosure
  • FIG. 6 is a schematic structural diagram of a module of a network device according to some embodiments of the present disclosure.
  • FIG. 7 shows a block diagram of a network device according to some embodiments of the present disclosure.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Single-carrier Frequency-Division Multiple Access
  • SC-FDMA Single Carrier Frequency-Division Multiple Access
  • system and “network” are often used interchangeably.
  • the techniques described herein can be used for both the systems and radio technologies mentioned above as well as other systems and radio technologies.
  • NR New Radio
  • the wireless communication system includes a terminal 11 and a network device 12.
  • the terminal 11 may also be referred to as a terminal device or a user terminal (User), and the terminal 11 may be a mobile phone, a tablet computer (laptop computer), a laptop computer (laptop computer), or a personal digital assistant (Personal Digital Assistant).
  • PDA mobile Internet device
  • MID mobile Internet Device
  • Wearable Device wearable device
  • terminal equipment such as vehicle-mounted equipment
  • the network device 12 may be a base station or a core network, where the above base stations may be 5G and later versions of base stations (for example, gNB, 5G, NR, NB, etc.), or base stations in other communication systems (for example, eNB, WLAN access point, Or other access points, etc.), where the base station may be referred to as Node B, evolved Node B, access point, Base Transceiver Station (BTS), radio base station, radio transceiver, basic service set (Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node or in the field
  • BSS Basic Service Set
  • ESS Extended Service Set
  • eNB Evolved Node B
  • the base station is not limited to a specific technical vocabulary. It should be noted that, in some embodiments of the present disclosure, only the base station in the NR system is taken as an example, but it is not limited
  • the base station may communicate with the terminal 11 under the control of a base station controller.
  • the base station controller may be part of the core network or some base stations.
  • Some base stations can communicate control information or user data with the core network through the backhaul.
  • some of these base stations may communicate with each other directly or indirectly through a backhaul link, which may be a wired or wireless communication link.
  • Wireless communication systems can support operation on multiple carriers (waveform signals of different frequencies).
  • Multi-carrier transmitters can transmit modulated signals on these multiple carriers simultaneously.
  • each communication link may be a multi-carrier signal modulated according to various radio technologies.
  • Each modulated signal can be sent on a different carrier and can carry control information (eg, reference signals, control channels, etc.), overhead information, data, and so on.
  • the base station may perform wireless communication with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its respective coverage area. The coverage area of an access point may be divided into sectors that constitute only a part of the coverage area.
  • the wireless communication system may include different types of base stations (for example, a macro base station, a pico base station, or a pico base station). Base stations can also utilize different radio technologies, such as cellular or WLAN radio access technologies. Base stations can be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including the coverage areas of the same or different types of base stations, the coverage areas using the same or different radio technologies, or the coverage areas belonging to the same or different access networks) may overlap.
  • the communication link in the wireless communication system may include an uplink for carrying uplink (Uplink, UL) transmission (for example, from the terminal 11 to the network device 12), or a bearer for downlink (Downlink, DL) Downlink for transmission (for example, from network device 12 to terminal 11).
  • Uplink, UL uplink
  • Downlink, DL downlink
  • UL transmission may also be referred to as reverse link transmission
  • DL transmission may also be referred to as forward link transmission.
  • the wireless communication system is briefly introduced above.
  • some embodiments of the present disclosure provide a cell reselection method.
  • the cell reselection method provided by some embodiments of the present disclosure, which is applied to a terminal, may include the following steps:
  • Step 21 Obtain reselection information related to cell reselection, where the reselection information includes: cell-level reselection parameters of neighboring cells.
  • the neighboring cell may be one of suitable reselected cells, and different neighboring cells may be configured with the same or different priorities. Further, the frequency points where different neighboring cells are located may be configured with the same or different priorities.
  • a suitable reselected cell refers to a cell where the terminal can reside and obtain normal services. The terminal needs to have a valid Universal Subscriber Identity Module (USIM) and meet the following conditions:
  • the target PLMN includes: the terminal's selected PLMN (selected PLMN), the terminal's registered PLMN (registered PLMN), and the terminal's equivalent PLMN. At least one item in the list (Equivalent PLMN list).
  • the cell meets preset cell reselection criteria.
  • the cell is not forbidden to attach or access.
  • the tracking area (Tracking Area, TA) broadcast by this cell is not in the list of prohibited TA areas (list of "Forbidden Tracking Areas").
  • the reselection information may be configured by a network device of a source cell where the terminal is located, or the reselection information is obtained from a history receiving message.
  • the reselection information when the reselection information is configured by a network device, the reselection information may be configured by a source cell (or a serving cell, a local cell) where the terminal is located.
  • the reselection information may be the source cell controlled by the radio resource. (Radio Resource Control, RRC) signaling is configured and / or broadcasted through system messages.
  • the RRC signaling may be an RRC release message.
  • the system message may be a system information block 2 (System Information Block, SIB2), SIB4, or SIB5.
  • SIB2 System Information Block
  • SIB4 SIB5
  • the reselection information of some embodiments of the present disclosure may also be obtained by the terminal from a history receiving message, where the history receiving message referred to herein includes, but is not limited to, R
  • Step 22 Perform a cell reselection process according to the cell-level reselection parameters and the reselection conditions for reselecting to neighboring cells.
  • performing the cell reselection process means that the terminal determines whether the source cell can be reselected to the target cell according to the cell-level reselection parameters and the reselection conditions to the neighboring cells, and the target cell is one of the neighboring cells.
  • the source cell may be a cell that the terminal initially accesses, or a cell that the terminal accessed during the last cell reselection process. When the source cell is the cell that the terminal accessed during the last cell reselection process, the source cell has the appropriate conditions for the reselected cell. When the source cell is the cell initially accessed by the terminal, the source cell meets at least the following conditions:
  • the signal quality of the cell meets the preset conditions: the signal quality includes reference signal received power (Referenced Signal Power, RSRP) and / or reference signal received quality (Referenced Signal Quality, RSRQ);
  • RSRP Reference Signal Power
  • RSRQ Reference Signal Quality
  • the terminal can obtain necessary system information of the cell, such as a master system information block (Master Information Block, MIB) and a first system information block (System Information Block 1, SIB1);
  • MIB Master Information Block
  • SIB1 System Information Block 1, SIB1
  • a cell access restriction information element in the system information of the cell indicates that the cell is not prohibited from attaching or accessing.
  • the cellbar IE can be in an access restricted state (Barred) or a non-access restricted state (notBarred).
  • the cell-level reselection parameters of some embodiments of the present disclosure refer to parameters capable of characterizing the actual network performance of neighboring cells.
  • the reselection information may further include frequency-level reselection parameters and frequency-level reselection parameters of neighboring cells. Refers to the parameters that can characterize the network performance of the frequency at which the neighboring cell is located.
  • the cell-level reselection parameter includes at least one of the following parameters: minimum received signal level strength parameter, minimum received signal level strength offset parameter, minimum signal quality value parameter, minimum signal quality offset parameter, power compensation Value parameter, measurement offset parameter, first target offset, second target offset, a first intermediate amount related to a received signal level strength value, a second intermediate amount related to a signal quality value, and the like.
  • the first target offset is a cell-level parameter value and a frequency-level parameter of at least one of the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measurement offset parameter.
  • the second target offset is the difference between the cell-level parameter value and the frequency-level parameter value of at least one of the minimum signal quality parameter, the minimum signal quality offset parameter, and the measurement offset parameter.
  • the first intermediate quantity is related to the cell-level parameter value of at least one of the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measurement offset parameter;
  • the second intermediate quantity is related to The minimum signal quality parameter, the minimum signal quality offset parameter, and the cell-level parameter value of at least one of the measurement offset parameters are related.
  • the reselection information may also include the physical cell identifier (Physical Cell Identifier, PCI) of the neighboring cell, where the PCI corresponds to the cell-level reselection parameter.
  • PCI Physical Cell Identifier
  • the correspondence between PCI and cell-level reselection parameters mentioned here refers to a set of cell-level reselection parameters corresponding to one PCI, that is, a set of cell-level reselection parameters corresponds to the same neighboring cell, and can jointly characterize the network performance of the neighboring cell.
  • the set of cell-level reselection parameters may include at least one of the above-mentioned multiple parameters.
  • the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the minimum signal quality parameter, the minimum signal quality offset parameter, the power compensation parameter, and the measurement offset parameter are all cells adjacent to the cell.
  • Level parameters that is, parameters that can characterize the actual network performance of neighboring cells.
  • the minimum received signal level strength parameter is: the target minimum received signal level strength value broadcasted by the neighboring cell.
  • the cell-level reselection parameters configured by the source cell may include the same parameters as the minimum received signal level strength value of the neighboring cell itself carried in the system message broadcast by the neighboring cell, that is, used for cell reselection parameter Q rxlevmin *, neighbor cell system information is carried in the cell itself parameter Q rxlevmin.
  • the minimum received signal level strength parameter may further include a minimum received signal level strength value at a frequency point level corresponding to an adjacent cell and a first offset value, where the first offset value is a target minimum received signal level strength The difference between the value and the minimum received signal level strength at the frequency level.
  • the cell-level reselection parameters configured by the source cell may include: the frequency-level minimum received signal level strength value (the parameter for cell reselection Q rxlevmin ) and the first offset value of the frequency point to which the neighboring cell belongs. (Q rxlevmin itself with the cell parameters Q rxlevmin neighbor cell broadcast system information carried in the cell source for cell reselection offset value).
  • the minimum received signal level strength offset parameter is: the target minimum received signal level strength offset value broadcasted by the neighboring cell.
  • the cell-level reselection parameters configured by the source cell may include: the parameters of the neighboring cell itself carrying the minimum received signal level strength offset values carried in the system message broadcast by the neighboring cell, that is, the parameters used for cell reselection
  • the selected parameter Q rxlevminoffset * is the own parameter Q rxlevminoffset of the cell carried in the system message of the neighboring cell.
  • the minimum received signal level strength offset parameter includes: a minimum received signal level strength offset value at a frequency point level corresponding to an adjacent cell and a second offset value, where the second offset value is a target minimum received signal level The difference between the strength offset and the minimum received signal level strength offset at the frequency level.
  • the cell-level reselection parameters configured by the source cell may include: the frequency-level minimum received signal level strength offset value of the frequency point to which the neighboring cell belongs (the parameter for cell reselection Q rxlevminoffset ) and the second offset. Shift value (the offset value of the cell's own parameter Q rxlevminoffset carried in the neighbor cell system message from the source cell's Q rxlevminoffset for cell reselection).
  • the minimum signal quality parameter is: the target minimum signal quality value broadcasted by the neighboring cell.
  • the cell-level reselection parameter configured by the source cell may include the same parameter as the minimum signal quality value of the neighboring cell itself carried in the system message broadcast by the neighboring cell, that is, the parameter Q for cell reselection qualmin *, which is the cell's own parameter Q qualmin carried in the system message of the neighboring cell.
  • the minimum signal quality parameter includes: the minimum signal quality value of the frequency point level corresponding to the neighboring cell and a third offset value, wherein the third offset value is between the target minimum signal quality value and the frequency point level minimum signal quality value. Difference.
  • the cell-level reselection parameters configured by the source cell may include: the frequency-level minimum signal quality value (the parameter for cell reselection Q qualmin ) of the frequency point to which the neighboring cell belongs and the third offset value (the neighboring cell). system message carried in the cell itself and the source cell parameter Q qualmin broadcast for cell reselection offset value Q qualmin).
  • the minimum signal quality parameter is: the target minimum signal quality offset value broadcasted by the neighboring cell. That is, the cell-level reselection parameters configured by the source cell may include the same parameters as the minimum signal quality offset value of the neighboring cell itself carried in the system message broadcast by the neighboring cell, that is, the parameters used for cell reselection. parameter Q qualminoffset *, neighbor cell system information is carried in the cell itself parameter Q qualminoffset.
  • the minimum signal quality offset parameter includes: a minimum signal quality offset value corresponding to a neighboring cell at a frequency point level and a fourth offset value, wherein the fourth offset value is a target minimum signal quality offset value and a minimum frequency point level The difference between the signal quality offset values.
  • the cell-level reselection parameters configured by the source cell may include: the frequency-level minimum signal quality offset value (the parameter for cell reselection Q qualminoffset ) and the fourth offset value ( Q qualminoffset Q qualminoffset with the cell parameters of the source itself broadcast neighbor cell system information carried in the cell for cell reselection offset value).
  • the measurement offset parameter includes a continuous fault offset parameter (connEstFailOffset) and / or a cell temporary offset parameter (Qoffset temp ).
  • the measurement offset parameter is: a cell measurement offset value broadcast by an adjacent cell. That is, the cell-level reselection parameters configured by the source cell may include the same parameters as the measurement offset of the neighboring cell itself carried in the system message broadcast by the neighboring cell, such as the parameter connEstFailOffset * for cell reselection. Or Qoffset temp *, which is the cell's own parameter connEstFailOffset or Qoffset temp carried in the system message of the neighboring cell.
  • the measurement offset parameter includes: a frequency point level measurement offset value and a fifth offset value corresponding to the neighboring cell, where the fifth offset value is between the target measurement offset value and the frequency point level measurement offset value.
  • the offset value may include: frequency-point-level measurement offsets (such as the parameter connEstFailOffset or Qoffset temp used for cell reselection) of the frequency point to which the neighboring cell belongs, and the fifth offset value (the neighbor cell system information carried in the cell itself or a parameter Qoffset temp connEstFailOffset cell with a broadcast source or a cell reselection connEstFailOffset Qoffset temp offset value).
  • the power compensation parameter is determined according to a maximum power parameter P Max and a power level parameter P PowerClass .
  • the maximum power parameter is: the target maximum power value corresponding to the neighboring cell. That is, the cell-level reselection parameter configured by the source cell may include the same parameter as the maximum power value of the neighboring cell itself carried in the system message broadcast by the neighboring cell, that is, the parameter P Max for cell reselection * , Is the cell's own parameter P Max carried in the system message of the neighboring cell.
  • the maximum power parameter includes: a maximum power value of a frequency point corresponding to a frequency point to which the neighboring cell belongs and a sixth offset value, wherein the sixth offset value is a difference between the target maximum power value and the maximum power value of the frequency point level. value.
  • the cell-level reselection parameters configured by the source cell may include: the frequency-point maximum power value (the parameter for cell reselection P Max ) of the frequency point to which the neighboring cell belongs and the sixth offset value (the neighboring cell system).
  • the message carries parameter P Max cell itself and the source cell broadcast parameters for cell reselection offset value P Max).
  • step 22 may include:
  • the minimum received signal level strength parameter, minimum received signal level strength offset parameter, the power compensation parameter, and the measured offset parameter among the reselected parameters Calculate the cell selection received signal level strength value Srxlev of the neighboring cell.
  • the minimum received signal level strength parameter, minimum received signal level strength offset parameter, power compensation parameter, and measurement offset parameter referred to here are cell-level parameters of neighboring cells, which can characterize the network performance of neighboring cells.
  • the terminal may calculate the cell selection received signal level strength value Srxlev with reference to the following formula:
  • Srxlev represents the cell selection received signal level strength value of the neighboring cell
  • Q rxlevmeas represents the actual measured received signal level strength value of the neighboring cell
  • Q rxlevmin represents the actual minimum received signal level strength parameter value of the neighboring cell
  • Q rxlevminoffset represents the actual minimum received signal level strength offset parameter value of the neighboring cell
  • P compensation represents the actual power compensation parameter value of the neighboring cell
  • Qoffset temp represents the actual measured offset parameter value of the neighboring cell.
  • the above formula is used for calculation scenarios where the minimum received signal level strength parameters, minimum received signal level strength offset parameters, power compensation parameters, and measurement offset parameters all exist. When some of these parameters exist, When the value is default, the corresponding parameters in the formula can take special values, and the special values are predetermined.
  • the terminal may calculate the cell selection received signal quality value Squal with reference to the following formula:
  • Squal represents the cell selection signal quality value of the neighboring cell
  • Q qualmeas represents the actual measured signal quality value of the neighboring cell
  • Q qualmin represents the actual minimum signal quality parameter value of the neighboring cell
  • Q qualminoffset represents the actual minimum signal quality of the neighboring cell
  • the value of the offset parameter, Qoffset temp represents the value of the actual measured offset parameter of the neighboring cell.
  • the above formula is used in the calculation scenarios where the minimum signal quality parameter, minimum signal quality offset parameter, and measurement offset parameter all exist.
  • the corresponding The parameters can take special values, and the special values are predetermined.
  • the cell-level reselection parameters in some embodiments of the present disclosure may further include a first target offset and a second target offset.
  • the first target offset is a cell-level parameter value and a frequency-level parameter of at least one of the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measurement offset parameter.
  • the second target offset is the difference between the cell-level parameter value and the frequency-level parameter value of at least one of the minimum signal quality parameter, the minimum signal quality offset parameter, and the measurement offset parameter. with.
  • the terminal may further perform cell reselection according to the first target offset and the second target offset.
  • step 22 may further include:
  • A2 Calculate the cell selection received signal level strength value of the neighboring cell according to the measured received signal level strength value, the first target parameter value, and the first target offset, where the first target parameter value is the minimum received signal Frequency level parameter of at least one of the level strength parameter, minimum received signal level strength offset parameter, power compensation parameter, and measurement offset parameter; for example, the terminal can calculate the cell selection received signal level by referring to the following formula Intensity value Srxlev:
  • Srxlev represents the cell selection received signal level strength value of the neighboring cell
  • Q rxlevmeas represents the actual measured value of the received signal level strength parameter of the neighboring cell
  • Q rxlevmin represents the minimum received signal level strength parameter of the frequency at which the neighboring cell is located.
  • Q rxlevminoffset represents the value of the minimum received signal level strength offset parameter at the frequency where the neighboring cell is located
  • P compensation represents the value of the power compensation parameter at the frequency where the neighboring cell is located
  • Qoffset temp represents the measurement offset at the frequency where the neighboring cell is located
  • offset1 can be a cell-level value and a frequency-point-level difference value of at least one of the minimum received signal level strength parameter, minimum received signal level strength offset parameter, power compensation parameter, and measurement offset parameter. And. When some parameter values in the above formulas default, special values may be taken.
  • the terminal may calculate the cell selection received signal quality value Squal with reference to the following formula:
  • Squal denotes a cell neighbor cell selection signal quality value
  • Q qualmeas represents the actual measured value of the signal quality parameters of adjacent cells
  • Q qualmin value indicating the minimum signal quality parameter of a neighbor cell where frequency point
  • Q qualminoffset indicates neighbor cells located
  • Qoffset temp represents the value of the measurement offset parameter at the frequency point where the neighboring cell is located
  • offset2 represents the value of the second target parameter.
  • offset2 may be the sum of the cell-level value and the frequency-point-level difference of at least one of the minimum signal quality parameter, the minimum signal quality offset parameter, and the measurement offset parameter.
  • a cell reselection process is performed according to a cell selection received signal level strength value, a cell selection signal quality value, and a reselection condition for reselecting to a neighboring cell.
  • the cell-level reselection parameters in some embodiments of the present disclosure may further include a first intermediate amount and a second intermediate amount.
  • the first intermediate quantity is related to a cell-level parameter value of at least one of the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measurement offset parameter;
  • the second intermediate quantity is related to The minimum signal quality parameter, the minimum signal quality offset parameter, and the cell-level parameter value of at least one of the measurement offset parameters are related.
  • the terminal may further perform cell reselection according to the first intermediate amount and the second intermediate amount.
  • step 22 may further include:
  • the terminal may calculate the cell selection received signal level strength value Srxlev with reference to the following formula:
  • Srxlev represents the cell selection received signal level strength value of the neighboring cell
  • Q rxlevmeas represents the actual measured received signal level strength value of the neighboring cell
  • offset3 represents calculated from the cell's own parameter values carried in the neighboring cell system message.
  • the terminal may calculate the cell selection received signal quality value Squal with reference to the following formula:
  • Squal represents the cell selection signal quality value of the neighboring cell
  • Q qualmeas represents the signal quality value of the neighboring cell actually measured
  • offset4 represents the (Q qualmin + Q) calculated from the cell's own parameter values carried in the neighboring cell system message.
  • qualminoffset the result of Qoffset temp .
  • the cell reselection process includes: the terminal compares the priority of the neighboring cell with the priority of the source cell to obtain a priority comparison result; determines a target reselection condition for reselecting to the neighboring cell according to the priority comparison result; When selecting a condition, the source cell is reselected to the target cell, and the target cell is one of the neighboring cells; when the target reselection condition is not satisfied, the cell reselection is not performed.
  • the terminal can reselect to a high-priority cell, a low-priority cell, or a cell of the same priority.
  • high-priority cells or high-priority frequency points
  • cells of the same priority or the same-priority frequency points
  • low-priority cells or the low-priority frequency points
  • the comparison result of the priority of the source cell that is, the priority of the neighboring cell received by the terminal from the network device side is calculated after comparing with the priority of the source cell. If the target priority of the neighboring cell is higher than the priority of the source cell, it is a high priority cell; if the target priority of the neighboring cell is lower than the priority of the source cell, it is a low priority cell; if the target of the neighboring cell is priority If the priority is the same as that of the source cell, the cells have the same priority.
  • the source cell of the terminal is an LTE cell and receives the priority of the NR cell
  • the source cell of the terminal is an NR cell and receives the priority of the LTE cell
  • the terminal receives the priority of the NR cell and the LTE cell at the same time Priority. Compare the priority of the terminal source cell with the received neighboring cell, and determine whether the neighboring cell is a high-priority cell, a same-priority cell, or a low-priority cell.
  • the cell reselection will be further described in combination with different scenarios.
  • Scenario 1 The priority of the neighbor cell is the same as the priority of the source cell, or the neighbor cell is at the same frequency as the source cell
  • steps C1, C2, and C3 can be implemented in the following ways:
  • Rate the source and neighboring cells If the priority of the neighboring cell is the same as the priority of the source cell, or the neighboring cell is at the same frequency as the source cell, if both the cell selection received signal level strength value and the cell selection signal quality value are greater than 0, then Rate the source and neighboring cells. That is, if the S criterion is satisfied, that is, Srxlev> 0 and Squal> 0; then the source cell and neighboring cells are rated according to the R criterion.
  • the source cell and the neighboring cell are rated by the following formula
  • the rating of the source cell Rs Q meas, s + Q Hyst -Qoffset temp ;
  • Q meas, s is the reference signal received power RSRP measurement value of the source cell
  • Q Hyst is the measurement delay of the source cell
  • Qoffset temp is the measurement offset of the source cell
  • Q meas, n is the RSRP measurement value of the neighboring cell
  • Qoffset temp is the second measurement offset of the neighboring cell.
  • the source cell does not provide a rating threshold, the source cell is reselected to the cell with the highest rating among the neighboring cells.
  • the rating threshold is a rangeToBestCell parameter. If the network device (source cell) is not configured with the rangeToBestCell parameter and meets the basic conditions for reselection, the terminal initiates a cell reselection process to the cell with the best rating result.
  • the source cell provides a rating threshold
  • the source cell is reselected from the source cell to the cell with the highest number of beams with higher quality than the threshold in the first cell, where the first cell is between the rating of the neighboring cell and the rating of the highest rated cell Cells whose difference is less than the rating threshold.
  • the terminal will select the cells in all neighboring cells whose difference between the rating and the rating of the highest rated cell does not exceed the rangeToBestCell. The cell of the beam initiates the cell reselection process.
  • the above-mentioned basic conditions for reselection include, but are not limited to, the ratings of neighboring cells in the reselection interval Treselection RAT are better than the source cells, and the residence time of the terminal in the current source cell exceeds a preset threshold, such as 1s.
  • neighboring cells and source cells of the same priority may be inter-frequency cells, co-system cells, or inter-system cells, which are not specifically limited in some embodiments of the present disclosure.
  • the source cell is reselected To the neighboring cell.
  • the source cell when the source cell provides Thresh Serving, LowQ corresponding to the Squal of the source cell, if Squal ⁇ Thresh Serving, LowQ of the source cell in the reselection period Treselection RAT , and Squal> Thresh of the neighboring cell X, LowQ or Srxlev> Thresh X, LowP of the neighboring cell, the source cell is reselected to the neighboring cell.
  • the terminal initiates reselection to the neighboring cell on the low priority frequency.
  • the source cell does not provide the Thresh Serving, LowQ of the source cell, if Srxlev ⁇ Thresh Serving, LowP of the source cell in the reselection time period Treselection RAT , and Srxlev> Thresh X, LowP of the neighboring cell,
  • the source cell is reselected to a neighboring cell; that is, if the system does not broadcast the thresh Serving, LowQ parameter, but the terminal has camped on the source cell for more than 1 second, and the serving cell Srxlev ⁇ Thresh Serving, LowP is satisfied within the time interval Treselection RAT And there is a cell Srxlev> Thresh X, LowP on the low-priority NR / LTE frequency , and the terminal initiates reselection to the neighboring cell on the low-priority frequency.
  • Squal is the cell selection signal quality value
  • Srxlev is the cell selection received signal level strength value
  • Thresh Serving LowQ is the Squal threshold of the source cell
  • Thresh Serving LowP is the Srxlev threshold of the source cell
  • Thresh X, LowQ are Squal thresholds of neighboring cells
  • Thresh X, LowP are Srxlev thresholds of neighboring cells.
  • the source cell is reselected to the neighboring cell.
  • the source cell when the source cell provides Thresh Serving, LowQ corresponding to the Squal of the source cell, if Squal> Thresh X, HighQ of the neighboring cell in the Treselection RAT during the reselection period , the source cell reselects to the neighboring cell;
  • the parameters of Thresh Serving, LowQ are broadcast in the system, and the terminal has been camping on the current source cell for more than 1 second, then if there is a cell at a high priority NR / LTE frequency, the signal within the time interval Treselection RAT meets When the quality Squal> Thresh X, HighQ , the terminal initiates reselection to the neighboring cell at the high priority frequency.
  • the source cell when the source cell does not provide Thresh Serving, LowQ of the source cell, if Srxlev> Thresh X, HighP of the neighboring cell in the Treselection RAT during the reselection period, the source cell is reselected to the neighboring cell; that is, if The system does not broadcast the parameters of Thresh Serving, LowQ , but the terminal has been camped on the source cell for more than 1 second, and the cells on the high priority frequency point meet the Srxlev> Thresh X, HighP in the Treselection RAT during the time interval reselection period. A reselection to the neighboring cell at a high priority frequency is initiated.
  • Squal is the cell selection signal quality value
  • Srxlev is the cell selection received signal level strength value
  • Thresh Serving LowQ is the Squal threshold value of the source cell
  • Thresh X HighQ is the Squal threshold value of the neighboring cell
  • Thresh X HighP is the Srxlev threshold of the neighboring cell.
  • the reselection information also includes priority information used to indicate the priority of the neighboring cell.
  • the priority information may include: basic priority information. Taking the upper limit of the frequency points corresponding to the LTE cell and the NR cell as examples, the basic priority information is used to indicate that the frequency point corresponding to the LTE cell is an integer from 0-7, or that the frequency point corresponding to the NR cell is preferential Level is an integer from 0-9.
  • the priority information may further include basic priority information and sub-priority information, where a value granularity of the sub-priority information is smaller than a value granularity of the basic priority.
  • the basic priority information is used to indicate that the frequency point corresponding to the LTE cell or the NR cell has a priority of an integer from 0-7.
  • the sub-priority information may include sub-priority information whose first-level value granularity is smaller than the base priority (value granularity is 1).
  • the sub-priority information is used to indicate that the value granularity corresponding to the NR cell is 0.1. Priority ⁇ 0.2, 0.4, 0.6, 0.8 ⁇ or one of ⁇ 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 ⁇ .
  • the sub-priority information may further include at least two levels of sub-priority information with different granularity values.
  • the sub-priority information may indicate a sub-priority level with a value granularity of 0.1 corresponding to the NR cell ⁇ 0.2, 0.4, 0.6, 0.8. ⁇ Or ⁇ 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 ⁇ , and the second priority of the value granularity of 0.01 ⁇ 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07 , 0.08, 0.09 ⁇ .
  • the median granularity 1, 0.1, and 0.01 of some embodiments of the present disclosure are only exemplary, and the value granularity of other decimal value ranges can also be applied to some embodiments of the present disclosure, and the value particles
  • the specific decimal value range can be determined by the agreement, the network device configuration, or the network device and the terminal through negotiation.
  • the terminal can obtain cell-level reselection parameters of neighboring cells, and perform cell reselection based on the cell-level reselection parameters, which can ensure that the quality of the reselected cell meets the camping requirements. Avoid the problem of unstable terminal connection after cell reselection.
  • the terminal 300 in some embodiments of the present disclosure can implement reselection information related to cell reselection in the foregoing embodiments, where the reselection information includes: cell-level reselection parameters of neighboring cells; Cell-level reselection parameters and reselection conditions for reselecting to neighboring cells, details of the cell reselection process method are performed, and the same effect is achieved.
  • the terminal 300 specifically includes the following functional modules:
  • the obtaining module 310 is configured to obtain reselection information related to cell reselection, where the reselection information includes: cell-level reselection parameters of neighboring cells;
  • a reselection module 320 is configured to perform a cell reselection process according to a cell-level reselection parameter and a reselection condition for reselecting to a neighboring cell.
  • the reselection information is configured by the network equipment of the source cell where the terminal is located, or the reselection information is obtained from the history receiving message.
  • the cell-level reselection parameter includes at least one of the following parameters:
  • a first target offset, and the first target offset is a cell-level parameter value of at least one of a minimum received signal level strength parameter, a minimum received signal level strength offset parameter, a power compensation parameter, and a measurement offset parameter The sum of the difference with the frequency point parameter value;
  • the second target offset where the second target offset is the difference between the cell-level parameter value and the frequency-point-level parameter value of at least one of the minimum signal quality parameter, the minimum signal quality offset parameter, and the measurement offset parameter.
  • a first intermediate quantity related to the received signal level strength value, the first intermediate quantity and at least one of the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measurement offset parameter Cell-level parameter values are related;
  • a second intermediate quantity related to the signal quality value is related to a cell-level parameter value of at least one of the minimum signal quality parameter, the minimum signal quality offset parameter, and the measurement offset parameter.
  • the minimum received signal level strength parameter is: the target minimum received signal level strength value broadcasted by the neighboring cell;
  • the minimum received signal level strength parameter includes a minimum received signal level strength value and a first offset value of a frequency point level corresponding to an adjacent cell, where the first offset value is a target minimum received signal level strength value and a frequency point level. The difference between the minimum received signal level strength values.
  • the minimum received signal level strength offset parameter is: the target minimum received signal level strength offset value broadcasted by the neighboring cell;
  • the minimum received signal level strength offset parameter includes: a minimum received signal level strength offset value at a frequency point level corresponding to an adjacent cell and a second offset value, where the second offset value is a target minimum received signal level strength offset The difference between the shift value and the minimum received signal level strength offset at the frequency level.
  • the minimum signal quality parameter is: the target minimum signal quality value broadcasted by the neighboring cell;
  • the minimum signal quality parameter includes: the minimum signal quality value of the frequency point level corresponding to the neighboring cell and a third offset value, wherein the third offset value is a difference between the target minimum signal quality value and the frequency point level minimum signal quality value. .
  • the minimum signal quality offset parameter is: the target minimum signal quality offset value broadcasted by the neighboring cell;
  • the minimum signal quality offset parameter includes: a minimum point signal quality offset value corresponding to the neighboring cell and a fourth offset value, wherein the fourth offset value is the target minimum signal quality offset value and the minimum point signal quality. The difference between the offset values.
  • the measurement offset parameter is: the target measurement offset value broadcasted by the neighboring cell;
  • the measurement offset parameters include a frequency point level measurement offset value and a fifth offset value corresponding to neighboring cells, where the fifth offset value is an offset between the target measurement offset value and the frequency point level measurement offset value. value.
  • the measurement offset parameters include: continuous fault offset parameters and / or cell temporary offset parameters.
  • the power compensation parameter is determined according to the maximum power parameter and the power level parameter.
  • the maximum power parameter is: the target maximum power value corresponding to the neighboring cell
  • the maximum power parameter includes a maximum power value of the frequency point corresponding to the neighboring cell and a sixth offset value, wherein the sixth offset value is a difference between the target maximum power value and the maximum power value of the frequency point level.
  • the reselection module 320 includes:
  • a first calculation submodule configured to: according to the measured received signal level strength value and the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measured offset parameter among the reselected parameters At least one of the following, calculating a cell selection received signal level strength value of a neighboring cell;
  • a second calculation submodule configured to calculate a cell selection of an adjacent cell according to at least one of a minimum signal quality parameter, a minimum signal quality offset parameter, and a measurement offset parameter among the measured received signal quality values and reselection parameters Signal quality value
  • the reselection submodule is configured to perform a cell reselection process according to a cell selection received signal level strength value, a cell selection signal quality value, and a reselection condition for reselecting to an adjacent cell.
  • the reselection module 320 includes:
  • a third calculation submodule configured to calculate a cell selection received signal level strength value of an adjacent cell according to the measured received signal level strength value, the first target parameter value, and the first target offset, wherein the first target The parameter value is a frequency point level parameter value of at least one of the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measurement offset parameter;
  • a fourth calculation submodule configured to calculate the cell selection signal quality value of the neighboring cell according to the measured received signal quality value, the second target parameter value, and the second target offset, wherein the second target parameter value is the minimum signal A frequency point level parameter value of at least one of a quality parameter, a minimum signal quality offset parameter, and a measurement offset parameter;
  • the reselection submodule is configured to perform a cell reselection process according to a cell selection received signal level strength value, a cell selection signal quality value, and a reselection condition for reselecting to an adjacent cell.
  • the reselection module 320 includes:
  • a fifth calculation submodule configured to calculate a cell selection received signal level strength value of a neighboring cell according to the measured received signal level strength value and the first intermediate quantity
  • a sixth calculation submodule configured to calculate a cell selection signal quality value of the neighboring cell according to the measured received signal quality value and the second intermediate quantity
  • the reselection submodule is configured to perform a cell reselection process according to a cell selection received signal level strength value, a cell selection signal quality value, and a reselection condition for reselecting to an adjacent cell.
  • the reselection submodule includes:
  • a rating unit is used for the case where the priority of the neighboring cell is the same as the priority of the source cell, or the neighboring cell is at the same frequency as the source cell, if the cell selection received signal level strength value and the cell selection signal quality value are both greater than 0, the source cell and neighboring cells are rated;
  • a first reselection unit configured to reselect from the source cell to a cell with the highest rating among neighboring cells if the source cell does not provide a rating threshold
  • a second reselection unit is configured to reselect the source cell to the cell with the highest number of beams with a quality higher than the threshold in the first cell if the source cell provides a rating threshold, where the first cell is the highest rated and rated among neighboring cells A cell whose difference between ratings is less than or equal to a rating threshold.
  • the reselection submodule includes:
  • the third reselection unit is used for the case where the priority of the neighboring cell is lower than the priority of the source cell, and when the source cell provides the Thin Serving, LowQ corresponding to the Squal of the source cell, if the reselection period is within the Treselection RAT Squal source cell ⁇ Thresh Serving, LowQ, and neighbor cell Squal> Thresh X, LowQ neighbor cells or Srxlev> Thresh X, LowP, by the source cell reselection to a neighbor cell;
  • a fourth reselection unit is used when the source cell does not provide Thresh Serving, LowQ of the source cell, if Srxlev ⁇ Thresh Serving, LowP of the source cell in the reselection time period Treselection RAT , and Srxlev> Thresh X of the neighboring cell , LowP , reselection from the source cell to the neighboring cell;
  • Squal is the cell selection signal quality value
  • Srxlev is the cell selection received signal level strength value
  • Thresh Serving LowQ is the Squal threshold of the source cell
  • Thresh Serving LowP is the Srxlev threshold of the source cell
  • Thresh X LowQ is the neighboring cell Squal threshold
  • Thresh X, LowP are Srxlev thresholds of neighboring cells.
  • the reselection submodule includes:
  • the fifth reselection unit is used for the case where the priority of the neighboring cell is higher than the priority of the source cell, when the source cell provides the threshold Serving, LowQ corresponding to the Squal of the source cell, if it is within the reselection period Treselection RAT If Squal> Thresh X, HighQ of the neighboring cell, the source cell reselects to the neighboring cell;
  • Sixth reselection unit configured to, when a source cell of the source cell is not provided Thresh Serving, LowQ time, if the adjacent cell in the reselection period Treselection RAT Srxlev> Thresh X, HighP , by the source cell to a neighbor cell reselection ;
  • Squal is the cell selection signal quality value
  • Srxlev is the cell selection received signal level strength value
  • Thresh Serving LowQ is the Squal threshold of the source cell
  • Thresh X HighQ is the Squal threshold of the neighboring cell
  • Thresh X HighP is the neighboring cell Srxlev threshold.
  • the reselection information also includes the physical cell ID of the neighboring cell, which corresponds to the cell-level reselection parameter.
  • the reselection information also includes priority information used to indicate the priority of the neighboring cell.
  • the priority information includes: basic priority information;
  • the priority information includes basic priority information and sub-priority information, where the value granularity of the sub-priority information is smaller than the value granularity of the base priority.
  • the terminal of some embodiments of the present disclosure can obtain cell-level reselection parameters of neighboring cells, and perform cell reselection based on the cell-level reselection parameters, which can ensure that the quality of the reselected cell meets the resident requirements and avoids The problem of terminal connection instability after cell reselection.
  • FIG. 4 is a schematic diagram of a hardware structure of a terminal that implements various embodiments of the present disclosure.
  • the terminal 40 includes, but is not limited to, a radio frequency unit 41, a network module 42, an audio output unit 43, The input unit 44, the sensor 45, the display unit 46, the user input unit 47, the interface unit 48, the memory 49, the processor 410, and the power source 411 and other components.
  • the terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or some components may be combined, or different component arrangements.
  • the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a car terminal, a wearable device, a pedometer, and the like.
  • the radio frequency unit 41 is configured to obtain reselection information related to cell reselection, where the reselection information includes: cell-level reselection parameters of neighboring cells;
  • the processor 410 is configured to perform a cell reselection process according to a cell-level reselection parameter and a reselection condition for reselecting to a neighboring cell;
  • the terminal of some embodiments of the present disclosure can obtain cell-level reselection parameters of neighboring cells, and perform cell reselection based on the cell-level reselection parameters, which can ensure that the quality of the reselected cell meets the resident requirements and avoids the terminal after cell reselection. Problems with unstable connections.
  • the radio frequency unit 41 may be used for receiving and sending signals during the process of receiving and sending information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 410; To send uplink data to the base station.
  • the radio frequency unit 41 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 41 can also communicate with a network and other devices through a wireless communication system.
  • the terminal provides users with wireless broadband Internet access through the network module 42, such as helping users to send and receive email, browse web pages, and access streaming media.
  • the audio output unit 43 may convert audio data received by the radio frequency unit 41 or the network module 42 or stored in the memory 49 into audio signals and output them as sound. Moreover, the audio output unit 43 may also provide audio output (for example, call signal reception sound, message reception sound, etc.) related to a specific function performed by the terminal 40.
  • the audio output unit 43 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 44 is used to receive audio or video signals.
  • the input unit 44 may include a Graphics Processing Unit (GPU) 441 and a microphone 442, and the graphics processor 441 may pair images of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. Data is processed.
  • the processed image frames may be displayed on the display unit 46.
  • the image frames processed by the graphics processor 441 may be stored in the memory 49 (or other storage medium) or transmitted via the radio frequency unit 41 or the network module 42.
  • the microphone 442 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 41 in the case of a telephone call mode and output.
  • the terminal 40 further includes at least one sensor 45, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 461 according to the brightness of the ambient light, and the proximity sensor can close the display panel 461 and / or when the terminal 40 moves to the ear. Or backlight.
  • an accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes).
  • sensor 45 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared The sensors and the like are not repeated here.
  • the display unit 46 is used to display information input by the user or information provided to the user.
  • the display unit 46 may include a display panel 461, and the display panel 461 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 47 may be used to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the terminal.
  • the user input unit 47 includes a touch panel 471 and other input devices 472.
  • the touch panel 471 also known as a touch screen, can collect touch operations performed by the user on or near the touch panel (for example, the user uses a finger, a stylus or any suitable object or accessory on the touch panel 471 or near the touch panel 471 operating).
  • the touch panel 471 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it To the processor 410, receive the command sent by the processor 410 and execute it.
  • the touch panel 471 may be implemented in various types such as a resistive type, a capacitive type, an infrared type, and a surface acoustic wave.
  • the user input unit 47 may further include other input devices 472.
  • the other input devices 472 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, and details are not described herein again.
  • the touch panel 471 may be overlaid on the display panel 461.
  • the touch panel 471 detects a touch operation on or near the touch panel 471, the touch panel 471 transmits the touch operation to the processor 410 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 461.
  • the touch panel 471 and the display panel 461 are implemented as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 471 and the display panel 461 may be integrated and Implement the input and output functions of the terminal, which are not limited here.
  • the interface unit 48 is an interface through which an external device is connected to the terminal 40.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, and audio input / output (I / O) port, video I / O port, headphone port, and more.
  • the interface unit 48 may be used to receive an input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 40 or may be used to communicate between the terminal 40 and an external device. Transfer data.
  • the memory 49 can be used to store software programs and various data.
  • the memory 49 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store data according to Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 49 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 410 is a control center of the terminal, and uses various interfaces and lines to connect various parts of the entire terminal.
  • the processor 410 runs or executes software programs and / or modules stored in the memory 49, and calls data stored in the memory 49 to execute.
  • Various functions and processing data of the terminal so as to monitor the terminal as a whole.
  • the processor 410 may include one or more processing units; optionally, the processor 410 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc.
  • the tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410.
  • the terminal 40 may further include a power source 411 (such as a battery) for supplying power to various components.
  • a power source 411 such as a battery
  • the power source 411 may be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
  • the terminal 40 includes some functional modules that are not shown, and details are not described herein again.
  • some embodiments of the present disclosure further provide a terminal, including a processor 410, a memory 49, and a computer program stored on the memory 49 and executable on the processor 410.
  • the computer program is processed by the processor 410.
  • the terminal may be a wireless terminal or a wired terminal.
  • the wireless terminal may be a device that provides voice and / or other business data connectivity to the user, a handheld device with a wireless connection function, or other processing equipment connected to a wireless modem. .
  • a wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal
  • a mobile terminal such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal
  • it can be a portable, compact, handheld, computer-built or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network.
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a wireless terminal can also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a mobile station, a remote station, a remote terminal,
  • the access terminal Access terminal
  • user terminal User terminal
  • user agent User agent
  • user equipment User Equipment
  • Some embodiments of the present disclosure also provide a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the processes of the foregoing cell reselection method embodiments are implemented, and The same technical effects are omitted here to avoid repetition.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • the cell reselection methods of some embodiments of the present disclosure are applied to a network device side.
  • the method includes the following steps:
  • Step 51 Send reselection information related to cell reselection, where the reselection information includes: cell-level reselection parameters of neighboring cells.
  • the neighboring cell may be one of suitable reselected cells, and different neighboring cells may be configured with the same or different priorities.
  • a suitable reselected cell refers to a cell where the terminal can camp and obtain normal services.
  • the terminal needs to have a valid USIM and meet the requirements of the appropriate reselected cell in the above-mentioned terminal-side embodiment, which will not be repeated here. .
  • the reselection information may be configured to the terminal by the source cell (or called the serving cell or the local cell).
  • the reselection information may be configured by the source cell to the terminal through radio resource control (RRC) signaling and / Or broadcast to the terminal through system messages.
  • RRC radio resource control
  • the RRC signaling may be an RRC release message.
  • System messages can be SIB2, SIB4, or SIB5.
  • the cell-level reselection parameters of some embodiments of the present disclosure refer to parameters capable of characterizing the actual network performance of neighboring cells.
  • the reselection information may further include frequency-level reselection parameters and frequency-level reselection parameters of neighboring cells. Refers to the parameters that can characterize the network performance of the frequency at which the neighboring cell is located.
  • the cell-level reselection parameter includes at least one of the following parameters: minimum received signal level strength parameter, minimum received signal level strength offset parameter, minimum signal quality value parameter, minimum signal quality offset parameter, power compensation Value parameter, measurement offset parameter, first target offset, second target offset, a first intermediate amount related to a received signal level strength value, a second intermediate amount related to a signal quality value, and the like.
  • the first target offset is a cell-level parameter value and a frequency-level parameter of at least one of the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measurement offset parameter.
  • the second target offset is the difference between the cell-level parameter value and the frequency-level parameter value of at least one of the minimum signal quality parameter, the minimum signal quality offset parameter, and the measurement offset parameter.
  • the first intermediate quantity is related to the cell-level parameter value of at least one of the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measurement offset parameter
  • the second intermediate quantity is related to The minimum signal quality parameter, the minimum signal quality offset parameter, and the cell-level parameter value of at least one of the measurement offset parameters are related.
  • the reselection information may also include the PCI of the neighboring cell, where the PCI corresponds to the cell-level reselection parameter.
  • the correspondence between PCI and cell-level reselection parameters referred to here refers to a set of cell-level reselection parameters corresponding to one PCI, that is, a set of cell-level reselection parameters corresponds to the same neighboring cell, and can jointly characterize the network performance of the neighboring cell.
  • the set of cell-level reselection parameters may include at least one of the above-mentioned multiple parameters.
  • the reselection information also includes priority information used to indicate the priority of the neighboring cell.
  • the priority information may include: basic priority information.
  • the priority information may further include basic priority information and sub-priority information, where a value granularity of the sub-priority information is smaller than a value granularity of the basic priority.
  • the sub-priority information may include sub-priority information whose first-level value granularity is smaller than the base priority (value granularity is 1), or the sub-priority information may further include at least two sub-priorities with different levels of granularity. Level information. It is worth pointing out that the specific range of the decimal value of the median granularity in some embodiments of the present disclosure may be determined by the agreement, the network device configuration, or the network device and the terminal through negotiation.
  • a network device configures a cell-level reselection parameter of an adjacent cell for a terminal, which can ensure that the terminal performs cell reselection based on the cell-level reselection parameter, and can ensure that the cell quality after reselection meets The resident requirement avoids the problem of unstable terminal connection after cell reselection.
  • the network device 600 in some embodiments of the present disclosure can implement reselection information related to cell reselection in the foregoing embodiments, where the reselection information includes a cell-level reselection parameter method for a neighboring cell. Details and achieve the same effect, the network device 600 specifically includes the following functional modules:
  • the sending module 610 is configured to send reselection information related to cell reselection, where the reselection information includes cell-level reselection parameters of neighboring cells.
  • the cell-level reselection parameter includes at least one of the following parameters:
  • a first target offset, and the first target offset is a cell-level parameter value of at least one of a minimum received signal level strength parameter, a minimum received signal level strength offset parameter, a power compensation parameter, and a measurement offset parameter The sum of the difference with the frequency point parameter value;
  • the second target offset where the second target offset is the difference between the cell-level parameter value and the frequency-point-level parameter value of at least one of the minimum signal quality parameter, the minimum signal quality offset parameter, and the measurement offset parameter.
  • a first intermediate quantity related to the received signal level strength value, the first intermediate quantity and at least one of the minimum received signal level strength parameter, the minimum received signal level strength offset parameter, the power compensation parameter, and the measurement offset parameter Cell-level parameter values are related;
  • a second intermediate quantity related to the signal quality value is related to a cell-level parameter value of at least one of the minimum signal quality parameter, the minimum signal quality offset parameter, and the measurement offset parameter.
  • the minimum received signal level strength parameter is: the target minimum received signal level strength value broadcasted by the neighboring cell;
  • the minimum received signal level strength parameter includes a minimum received signal level strength value and a first offset value of a frequency point level corresponding to an adjacent cell, where the first offset value is a target minimum received signal level strength value and a frequency point level. The difference between the minimum received signal level strength values.
  • the minimum received signal level strength offset parameter is: the target minimum received signal level strength offset value broadcasted by the neighboring cell;
  • the minimum received signal level strength offset parameter includes: a minimum received signal level strength offset value at a frequency point level corresponding to an adjacent cell and a second offset value, where the second offset value is a target minimum received signal level strength offset The difference between the shift value and the minimum received signal level strength offset at the frequency level.
  • the minimum signal quality parameter is: the target minimum signal quality value broadcasted by the neighboring cell;
  • the minimum signal quality parameter includes: the minimum signal quality value of the frequency point level corresponding to the neighboring cell and a third offset value, wherein the third offset value is a difference between the target minimum signal quality value and the frequency point level minimum signal quality value. .
  • the minimum signal quality offset parameter is: the target minimum signal quality offset value broadcasted by the neighboring cell;
  • the minimum signal quality offset parameter includes: a minimum point signal quality offset value corresponding to the neighboring cell and a fourth offset value, wherein the fourth offset value is the target minimum signal quality offset value and the minimum point signal quality. The difference between the offset values.
  • the measurement offset parameter is: the target measurement offset value broadcasted by the neighboring cell;
  • the measurement offset parameters include a frequency point level measurement offset value and a fifth offset value corresponding to neighboring cells, where the fifth offset value is an offset between the target measurement offset value and the frequency point level measurement offset value. value.
  • the measurement offset parameters include: continuous fault offset parameters and / or cell temporary offset parameters.
  • the power compensation parameter is determined according to the maximum power parameter and the power level parameter.
  • the maximum power parameter is: the target maximum power value corresponding to the neighboring cell
  • the maximum power parameter includes a maximum power value of the frequency point corresponding to the neighboring cell and a sixth offset value, wherein the sixth offset value is a difference between the target maximum power value and the maximum power value of the frequency point level.
  • the reselection information also includes a physical cell identifier PCI of the neighboring cell, and the PCI corresponds to a cell-level reselection parameter.
  • the reselection information also includes priority information used to indicate the priority of the neighboring cell.
  • the priority information includes: basic priority information;
  • the priority information includes basic priority information and sub-priority information, where the value granularity of the sub-priority information is smaller than the value granularity of the base priority.
  • the network device of some embodiments of the present disclosure configures a cell-level reselection parameter of an adjacent cell for the terminal, which can ensure that the terminal performs cell reselection based on the cell-level reselection parameter, and can ensure that the quality of the cell after reselection meets Keep demand to avoid the problem of unstable terminal connection after cell reselection.
  • each module of the above network equipment and terminal is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or it can be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be all implemented in hardware; some modules can be implemented in the form of software called by processing elements, and some modules can be implemented in hardware.
  • the determination module may be a separately established processing element, or it may be integrated and implemented in a certain chip of the above device.
  • it may also be stored in the form of a program code in the memory of the above device, and a certain processing element of the above device Invoke and execute the functions of the above identified modules.
  • each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
  • the above modules may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (ASIC), or one or more microprocessors (digital signal processor (DSP), or one or more Field Programmable Gate Array (FPGA).
  • ASIC application specific integrated circuits
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code.
  • CPU Central Processing Unit
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • some embodiments of the present disclosure further provide a network device.
  • the network device includes a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the processor executes the computer.
  • the procedure implements the steps in the cell reselection method described above.
  • An embodiment of the invention also provides a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the steps of the cell reselection method described above are implemented.
  • the network device 700 includes: an antenna 71, a radio frequency device 72, and a baseband device 73.
  • the antenna 71 is connected to the radio frequency device 72.
  • the radio frequency device 72 receives information through the antenna 71 and sends the received information to the baseband device 73 for processing.
  • the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72.
  • the radio frequency device 72 processes the received information and sends it out via the antenna 71.
  • the above-mentioned frequency band processing device may be located in a baseband device 73.
  • the method performed by the network device in the foregoing embodiment may be implemented in the baseband device 73.
  • the baseband device 73 includes a processor 74 and a memory 75.
  • the baseband device 73 may include, for example, at least one baseband board, and a plurality of chips are provided on the baseband board, as shown in FIG. The network device operations shown in the above method embodiments are operated.
  • the baseband device 73 may further include a network interface 76 for exchanging information with the radio frequency device 72.
  • the interface is, for example, a common public radio interface (CPRI).
  • the processor here may be a processor or a collective name for multiple processing elements.
  • the processor may be a CPU, an ASIC, or one or more configured to implement the methods performed by the above network devices.
  • Integrated circuits such as: one or more microprocessor DSPs, or one or more field programmable gate array FPGAs.
  • a storage element may be a single memory or a collective term for multiple storage elements.
  • the memory 75 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDRSDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchlink DRAM SLDRAM
  • Direct RAMbus RAM Direct RAMbus RAM, DRRAM
  • the memory 75 described herein is intended to include, but is not limited to, these and any other suitable types of memory.
  • the network device of some embodiments of the present disclosure further includes: a computer program stored on the memory 75 and executable on the processor 74, and the processor 74 calls the computer program in the memory 75 to execute each module shown in FIG. Methods.
  • the computer program when called by the processor 74, it may be used to execute: sending reselection information related to cell reselection, where the reselection information includes: cell-level reselection parameters of neighboring cells.
  • the network device in some embodiments of the present disclosure configures a cell-level reselection parameter for an adjacent cell for the terminal, which can ensure that the terminal performs cell reselection based on the cell-level reselection parameter, and can ensure that the quality of the reselected cell meets the camping requirements. Avoid the problem of unstable terminal connection after cell reselection.
  • the disclosed apparatus and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present disclosure is essentially a part that contributes to related technologies or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several
  • the instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in various embodiments of the present disclosure.
  • the foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
  • each component or each step can be disassembled and / or recombined.
  • These decompositions and / or recombinations should be regarded as equivalent solutions of the present disclosure.
  • the steps for performing the series of processes described above can be performed naturally in chronological order in accordance with the described order, but need not necessarily be performed in chronological order, and certain steps can be performed in parallel or independently of each other.
  • it is able to understand all or any steps or components of the methods and devices of the present disclosure and may be implemented in hardware, firmware in any computing device (including a processor, a storage medium, etc.) or a network of computing devices.
  • Software, or a combination thereof which can be achieved by a person of ordinary skill in the art using their basic programming skills after reading the description of the present disclosure.
  • the purpose of the present disclosure can also be achieved by running a program or a group of programs on any computing device.
  • the computing device may be a well-known general-purpose device. Therefore, the object of the present disclosure can also be achieved only by providing a program product including a program code that implements the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
  • the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that, in the apparatus and method of the present disclosure, it is obvious that each component or each step can be disassembled and / or recombined.

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Abstract

本公开提供了一种小区重选方法、终端及网络设备，该方法包括：获取与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数；根据小区级重选参数以及重选到邻小区的重选条件，执行小区重选过程。

Description

小区重选方法、终端及网络设备
相关申请的交叉引用
本申请主张在2018年8月9日在中国提交的中国专利申请号No.201810904656.4的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种小区重选方法、终端及网络设备。
背景技术
在移动通信系统中，终端在初始接入时，由于终端并不事先知道哪一个射频信道(Radio Frequency channel，RF channel)适合接入，因此终端根据终端能力逐个扫描(scan)所有的RF channel，以寻找合适(suitable)的小区。其中，在每一扫描的载频上，终端仅需要搜索信号质量最强的小区即可，一旦找到合适的小区，则选择该小区进行接入和驻留，并停止初始小区选择过程，若这时仍存在未扫描的RF channel也无需再对其进行扫描。
当终端驻留在服务小区时，终端可基于网络设备提供的频点优先级顺序依次评估每一个频点是否有合适的重选邻小区，如果检测到有合适的用于重选的邻小区，则可以向该频点上的小区发起重选过程。
目前在进行小区重选时，需要对满足条件的邻小区进行排序，判断邻小区是否满足条件的参数可通过网络设备广播的系统信息得到，但是网络设备广播的相关参数是基于频点(per-frequency)的，无法反映邻小区的具体情况，可能存在终端通过小区重选到某个邻小区后，发现该小区并不能够满足重选条件，无法在该小区驻留，终端需要再次重选或回到源小区，导致乒乓效应问题。
发明内容
本公开的一些实施例提供了一种小区重选方法、终端及网络设备，以解 决小区重选的乒乓效应问题。
第一方面，本公开的一些实施例提供了一种小区重选方法，应用于终端，包括：
获取与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数；
根据小区级重选参数以及重选到邻小区的重选条件，执行小区重选过程。
第二方面，本公开的一些实施例还提供了一种终端，包括：
获取模块，用于获取与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数；
重选模块，用于根据小区级重选参数以及重选到邻小区的重选条件，执行小区重选过程。
第三方面，本公开的一些实施例提供了一种终端，终端包括处理器、存储器以及存储于存储器上并在处理器上运行的计算机程序，计算机程序被处理器执行时实现上述的小区重选方法的步骤。
第四方面，本公开的一些实施例提供了一种小区重选方法，应用于网络设备，包括：
发送与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数。
第五方面，本公开的一些实施例还提供了一种网络设备，包括：
发送模块，用于发送与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数。
第六方面，本公开的一些实施例提供了一种网络设备，该网络设备包括处理器、存储器以及存储于存储器上并在处理器上运行的计算机程序，计算机程序被处理器执行时实现上述的小区重选方法的步骤。
第七方面，本公开的一些实施例提供了一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时实现上述终端或网络设备的小区重选方法的步骤。
这样，本公开的一些实施例通过采用上述技术方案，终端可以获取到邻小区的小区级重选参数，基于小区级重选参数进行小区重选，可保证重选后 的小区质量满足驻留需求，避免小区重选后终端连接不稳定的问题。
附图说明
为了更清楚地说明本公开的一些实施例的技术方案，下面将对本公开的一些实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1表示本公开的一些实施例可应用的一种移动通信系统框图；
图2表示本公开的一些实施例终端的小区重选方法的流程示意图；
图3表示本公开的一些实施例终端的模块结构示意图；
图4表示本公开的一些实施例的终端框图；
图5表示本公开的一些实施例网络设备的小区重选方法的流程示意图；
图6表示本公开的一些实施例网络设备的模块结构示意图；
图7表示本公开的一些实施例的网络设备框图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。说明书以及权利要求中“和/或”表示所连接对象的至少其中之一。
本文所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，并且也可用于各种无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、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 Frequency-Division Multiple Access，SC-FDMA)和其他系统。术语“系统”和“网络”常被可互换地使用。本文所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。然而，以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，尽管这些技术也可应用于NR系统应用以外的应用。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如，可以按不同于所描述的次序来执行所描述的方法，并且可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
请参见图1，图1示出本公开的一些实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络设备12。其中，终端11也可以称作终端设备或者用户终端(User Equipment，UE)，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备，需要说明的是，在本公开的一些实施例中并不限定终端11的具体类型。网络设备12可以是基站或核心网，其中，上述基站可以是5G及以后版本的基站(例如：gNB、5G NR NB等)，或者其他通信系统中的基站(例如：eNB、WLAN接入点、或其他接入点等)，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节 点、WLAN接入点、WiFi节点或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本公开的一些实施例中仅以NR系统中的基站为例，但是并不限定基站的具体类型。
基站可在基站控制器的控制下与终端11通信，在各种示例中，基站控制器可以是核心网或某些基站的一部分。一些基站可通过回程与核心网进行控制信息或用户数据的通信。在一些示例中，这些基站中的一些可以通过回程链路直接或间接地彼此通信，回程链路可以是有线或无线通信链路。无线通信系统可支持多个载波(不同频率的波形信号)上的操作。多载波发射机能同时在这多个载波上传送经调制信号。例如，每条通信链路可以是根据各种无线电技术来调制的多载波信号。每个已调信号可在不同的载波上发送并且可携带控制信息(例如，参考信号、控制信道等)、开销信息、数据等。
基站可经由一个或多个接入点天线与终端11进行无线通信。每个基站可以为各自相应的覆盖区域提供通信覆盖。接入点的覆盖区域可被划分成仅构成该覆盖区域的一部分的扇区。无线通信系统可包括不同类型的基站(例如宏基站、微基站、或微微基站)。基站也可利用不同的无线电技术，诸如蜂窝或WLAN无线电接入技术。基站可以与相同或不同的接入网或运营商部署相关联。不同基站的覆盖区域(包括相同或不同类型的基站的覆盖区域、利用相同或不同无线电技术的覆盖区域、或属于相同或不同接入网的覆盖区域)可以交叠。
无线通信系统中的通信链路可包括用于承载上行链路(Uplink，UL)传输(例如，从终端11到网络设备12)的上行链路，或用于承载下行链路(Downlink，DL)传输(例如，从网络设备12到终端11)的下行链路。UL传输还可被称为反向链路传输，而DL传输还可被称为前向链路传输。
以上简单介绍了无线通信系统，为避免无线通信系统中小区重选的乒乓问题，本公开的一些实施例提供了一种小区重选方法。
如图2所示，本公开的一些实施例提供了的小区重选方法，应用于终端，可以包括以下步骤：
步骤21：获取与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数。
其中，邻小区可以是合适的重选小区中的一个，不同的邻小区可配置相同或不同的优先级。进一步地，不同邻小区所在频点可配置相同或不同的优先级。其中，合适的重选小区是指终端可以驻留并获得正常服务的小区，终端需要具备有效的全球用户识别卡(Universal Subscriber Identity Module，USIM)，且满足以下条件：
该小区属于终端的目标公共陆地移动网络(Public Land Mobile Network，PLMN)标识中的一个，目标PLMN包括：终端选择的PLMN(selected PLMN)、终端注册的PLMN(Registered PLMN)和终端的等价PLMN列表(Equivalent PLMN list)中的至少一项。
该小区满足预设小区重选准则。
该小区没有被禁止附着或接入。
该小区广播的跟踪区域(Tracking Area，TA)不在禁止的TA区域列表(list of“Forbidden Tracking Areas”)中。
进一步地，本公开的一些实施例中重选信息可以是终端所在源小区的网络设备配置的，或者，重选信息是从历史接收消息中获取到的。其中，当重选信息是网络设备配置的时，重选信息可以是由终端所在的源小区(或称为服务小区、本小区)配置下来的，例如重选信息可以是源小区通过无线资源控制(Radio Resource Control，RRC)信令配置下来和/或通过系统消息广播下来的。其中，RRC信令可以是RRC释放(RRC release)消息等。系统消息可以是系统信息块2(System Information Block，SIB2)、SIB4或SIB5等。此外，本公开的一些实施例的重选信息还可以是终端从历史接收消息中获取到的，其中，这里所说的历史接收消息包括但不限于RRC信令和/或系统消息。
步骤22：根据小区级重选参数以及重选到邻小区的重选条件，执行小区重选过程。
其中，执行小区重选过程指的是：终端根据小区级重选参数以及重选到邻小区的重选条件，确定是否可以由源小区重选至目标小区，目标小区为邻小区中的一个。其中，源小区可以是终端初始接入的小区，也可以是终端在上一次小区重选过程中接入的小区。当源小区为终端在上一次小区重选过程 中接入的小区时，源小区具备合适的重选小区的各项条件。当源小区是终端初始接入的小区时，源小区至少满足以下条件：
小区的信号质量满足预设条件：信号质量包括参考信号接收功率(Reference Signal Received Power，RSRP)和/或参考信号接收质量(Reference Signal Received Quality，RSRQ)；
终端可以获得该小区必要的系统信息，如主系统信息块(Master Information Block，MIB)和第一系统信息块(System Information Block 1，SIB1)；
该小区的系统信息中的小区接入限制信息元素(cellbar Information Element，cellbar IE)指示小区未被禁止附着或接入。其中cellbar IE可以为接入限制状态(Barred)或非接入限制状态(notBarred)。
其中，本公开的一些实施例的小区级重选参数指的是能够表征邻小区实际网络性能的参数，重选信息中还可以包括邻小区的频点级重选参数，频点级重选参数指的是能够表征邻小区所在频点的网络性能的参数。
具体地，小区级重选参数包括以下参数中的至少一项：最小接收信号电平强度参数、最小接收信号电平强度偏移参数、最小信号质量值参数、最小信号质量偏移参数、功率补偿值参数、测量偏置参数、第一目标偏移量、第二目标偏移量、与接收信号电平强度值相关的第一中间量和与信号质量值相关的第二中间量等。其中，第一目标偏移量为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；第二目标偏移量为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；第一中间量与最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值相关；第二中间量与最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值相关。
其中值得指出的是，重选信息中还可以包括邻小区的物理小区标识(Physical Cell Identifier，PCI)，其中，PCI与小区级重选参数对应。这里所说的PCI与小区级重选参数对应指的是一个PCI对应一套小区级重选参数， 即一套小区级重选参数对应于同一邻小区，可联合表征该邻小区的网络性能。其中，一套小区级重选参数可以包括上述提及的多种参数中的至少一项。
其中，这里所说的最小接收信号电平强度参数、最小接收信号电平强度偏移参数、最小信号质量参数、最小信号质量偏移参数、功率补偿参数和测量偏置参数均为邻小区的小区级参数，即能够表征邻小区实际网络性能的参数。
其中，上述最小接收信号电平强度参数为：邻小区广播的目标最小接收信号电平强度值。也就是说，源小区配置的小区级重选参数中可以包括：与邻小区广播的系统消息中所携带的该邻小区自身的最小接收信号电平强度值相同的参数，即用于小区重选的参数Q rxlevmin*，为邻小区系统消息中携带的该小区自身参数Q rxlevmin。或者，上述最小接收信号电平强度参数还可以包括：邻小区对应的频点级最小接收信号电平强度值和第一偏移值，其中，第一偏移值为目标最小接收信号电平强度值与频点级最小接收信号电平强度值之间的差值。也就是说，源小区配置的小区级重选参数中可以包括：邻小区所属频点的频点级最小接收信号电平强度值(用于小区重选的参数Q rxlevmin)以及第一偏移值(邻小区系统消息中携带的该小区自身参数Q rxlevmin与源小区广播的用于小区重选的Q rxlevmin的偏移值)。
同理，上述最小接收信号电平强度偏移参数为：邻小区广播的目标最小接收信号电平强度偏移值。也就是说，源小区配置的小区级重选参数中可以包括：邻小区广播的系统消息中所携带的该邻小区自身的最小接收信号电平强度偏移值相同的参数，即用于小区重选的参数Q rxlevminoffset*，为邻小区系统消息中携带的该小区自身参数Q rxlevminoffset。或者，最小接收信号电平强度偏移参数包括：邻小区对应的频点级最小接收信号电平强度偏移值和第二偏移值，其中，第二偏移值为目标最小接收信号电平强度偏移值与频点级最小接收信号电平强度偏移值之间的差值。也就是说，源小区配置的小区级重选参数中可以包括：邻小区所属频点的频点级最小接收信号电平强度偏移值(用于小区重选的参数Q rxlevminoffset)以及第二偏移值(邻小区系统消息中携带的该小区自身参数Q rxlevminoffset与源小区广播的用于小区重选的Q rxlevminoffset的偏移值)。
同理，最小信号质量参数为：邻小区广播的目标最小信号质量值。也就是说，源小区配置的小区级重选参数中可以包括：与邻小区广播的系统消息中所携带的该邻小区自身的最小信号质量值相同的参数，即用于小区重选的参数Q qualmin*，为邻小区系统消息中携带的该小区自身参数Q qualmin。或者，最小信号质量参数包括：邻小区对应的频点级最小信号质量值和第三偏移值，其中，第三偏移值为目标最小信号质量值与频点级最小信号质量值之间的差值。也就是说，源小区配置的小区级重选参数中可以包括：邻小区所属频点的频点级最小信号质量值(用于小区重选的参数Q qualmin)以及第三偏移值(邻小区系统消息中携带的该小区自身参数Q qualmin与源小区广播的用于小区重选的Q qualmin的偏移值)。
同理，最小信号质量参数为：邻小区广播的目标最小信号质量偏移值。也就是说，源小区配置的小区级重选参数中可以包括：与邻小区广播的系统消息中所携带的该邻小区自身的最小信号质量偏移值相同的参数，即用于小区重选的参数Q qualminoffset*，为邻小区系统消息中携带的该小区自身参数Q qualminoffset。或者，最小信号质量偏移参数包括：邻小区对应的频点级最小信号质量偏移值和第四偏移值，其中，第四偏移值为目标最小信号质量偏移值与频点级最小信号质量偏移值之间的差值。也就是说，源小区配置的小区级重选参数中可以包括：邻小区所属频点的频点级最小信号质量偏移值(用于小区重选的参数Q qualminoffset)以及第四偏移值(邻小区系统消息中携带的该小区自身参数Q qualminoffset与源小区广播的用于小区重选的Q qualminoffset的偏移值)。
进一步地，测量偏置参数包括：连续故障偏移参数(connEstFailOffset)和/或小区临时偏移参数(Qoffset temp)。测量偏置参数为：邻小区广播的小区测量偏置值。也就是说，源小区配置的小区级重选参数中可以包括：与邻小区广播的系统消息中所携带的该邻小区自身的测量偏置相同的参数，如用于小区重选的参数connEstFailOffset*或Qoffset temp*，为邻小区系统消息中携带的该小区自身参数connEstFailOffset或Qoffset temp。或者，测量偏置参数包括：：邻小区对应的频点级测量偏置值和第五偏移值，其中，第五偏移值为目标测量偏置值与频点级测量偏置值之间的偏移值。也就是说，源小区配置的小区级重选参数中可以包括：邻小区所属频点的频点级测量偏置(如用于小区重 选的参数connEstFailOffset或Qoffset temp)以及第五偏移值(如邻小区系统消息中携带的该小区自身参数connEstFailOffset或Qoffset temp与源小区广播的用于小区重选的connEstFailOffset或Qoffset temp的偏移值)。
进一步地，上述功率补偿参数是根据最大功率参数P Max和功率等级参数P PowerClass确定的。其中，最大功率参数为：邻小区对应的目标最大功率值。也就是说，源小区配置的小区级重选参数中可以包括与邻小区广播的系统消息中所携带的该邻小区自身的最大功率值相同的参数，即用于小区重选的参数P Max*，为邻小区系统消息中携带的该小区自身参数P Max。或者，最大功率参数包括：邻小区所属频点对应的频点级最大功率值和第六偏移值，其中，第六偏移值为目标最大功率值与频点级最大功率值之间的差值。也就是说，源小区配置的小区级重选参数中可以包括：邻小区所属频点的频点级最大功率值(用于小区重选的参数P Max)以及第六偏移值(邻小区系统消息中携带的该小区自身参数P Max与源小区广播的用于小区重选的参数P Max的偏移值)。
以上简单介绍了最小接收信号电平强度参数、最小接收信号电平强度偏移参数、最小信号质量参数、最小信号质量偏移参数、功率补偿参数和测量偏置参数等参数，下面本实施例将进一步说明如何根据这些参数进行小区重选。
具体地，步骤22可以包括：
A1、根据测量到的接收信号电平强度值以及重选参数中的最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中的至少一项，计算邻小区的小区选择接收信号电平强度值Srxlev。其中，这里所说的最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数指的是邻小区的小区级参数，可以表征邻小区的网络性能。例如，终端可参照下述公式计算小区选择接收信号电平强度值Srxlev：
Srxlev＝Q rxlevmeas-(Q rxlevmin+Q rxlevminoffset)-P compensation-Qoffset temp
其中，Srxlev表示邻小区的小区选择接收信号电平强度值，Q rxlevmeas表示实际测量到邻小区的接收信号电平强度值，Q rxlevmin表示邻小区实际的最小接收信号电平强度参数的值，Q rxlevminoffset表示邻小区实际的最小接收信号电平强 度偏移参数的值，P compensation表示邻小区实际的功率补偿参数的值，Qoffset temp表示邻小区实际的测量偏置参数的值。
值得指出的是，以上公式用于最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数这些参数均存在的计算场景，当这些参数中的某些值缺省的时候，公式中相应的参数可取特殊值，特殊值为预先约定好的。
B1、根据测量到的接收信号质量值以及重选参数中的最小信号质量参数、最小信号质量偏移参数和测量偏置参数中的至少一项，计算邻小区的小区选择信号质量值。其中，这里所说的最小信号质量参数、最小信号质量偏移参数和测量偏置参数指的是邻小区的小区级参数，可以表征邻小区的网络性能。例如，终端可参照下述公式计算小区选择接收信号质量值Squal：
Squal＝Q qualmeas-(Q qualmin+Q qualminoffset)-Qoffset temp
其中，Squal表示邻小区的小区选择信号质量值，Q qualmeas表示实际测量到邻小区的信号质量值，Q qualmin表示邻小区实际的最小信号质量参数的值，Q qualminoffset表示邻小区实际的最小信号质量偏移参数的值，Qoffset temp表示邻小区实际的测量偏置参数的值。
值得指出的是，以上公式用于最小信号质量参数、最小信号质量偏移参数和测量偏置参数这些参数均存在的计算场景，当这些参数中的某些值缺省的时候，公式中相应的参数可取特殊值，特殊值为预先约定好的。
C1、根据小区选择接收信号电平强度值、小区选择信号质量值以及重选到邻小区的重选条件，执行小区重选过程。
此外，本公开的一些实施例中的小区级重选参数还可以包括第一目标偏移量和第二目标偏移量。其中，第一目标偏移量为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；第二目标偏移量为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和。
在一些实施例中，终端还可根据第一目标偏移量和第二目标偏移量进行小区重选，具体地，步骤22还可以包括：
A2、根据测量到的接收信号电平强度值、第一目标参数值以及第一目标偏移量，计算邻小区的小区选择接收信号电平强度值，其中，第一目标参数值为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的频点级参数值；例如，终端可参照下述公式计算小区选择接收信号电平强度值Srxlev：
Srxlev＝Q rxlevmeas-(Q rxlevmin+Q rxlevminoffset)-P compensation-Qoffset temp-offset1
其中，Srxlev表示邻小区的小区选择接收信号电平强度值，Q rxlevmeas表示实际测量到邻小区的接收信号电平强度参数的值，Q rxlevmin表示邻小区所在频点的最小接收信号电平强度参数的值，Q rxlevminoffset表示邻小区所在频点的最小接收信号电平强度偏移参数的值，P compensation表示邻小区所在频点的功率补偿参数的值，Qoffset temp表示邻小区所在频点的测量偏置参数的值，offset1表示第一目标参数值。
值得指出的是，offset1可以是最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级值和频点级值差值的和。上述公式中的某些参数值缺省的时候，可取特殊值。
B2、根据测量到的接收信号质量值、第二目标参数值以及第二目标偏移量，计算邻小区的小区选择信号质量值，其中，第二目标参数值为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的频点级参数值。例如，终端可参照下述公式计算小区选择接收信号质量值Squal：
Squal＝Q qualmeas-(Q qualmin+Q qualminoffset)-Qoffset temp-offset2
其中，Squal表示邻小区的小区选择信号质量值，Q qualmeas表示实际测量到邻小区的信号质量参数的值，Q qualmin表示邻小区所在频点的最小信号质量参数的值，Q qualminoffset表示邻小区所在频点的最小信号质量偏移参数的值，Qoffset temp表示邻小区所在频点的测量偏置参数的值，offset2表示第二目标参数值。
值得指出的是，offset2可以是最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级值和频点级值差值的和。上述公式中的某些参数值缺省的时候，可取特殊值。
C2、根据小区选择接收信号电平强度值、小区选择信号质量值以及重选到邻小区的重选条件，执行小区重选过程。
此外，本公开的一些实施例中的小区级重选参数还可以包括第一中间量和第二中间量。其中，第一中间量与最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值相关；第二中间量与最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值相关。
在一些实施例中，终端还可根据第一中间量和第二中间量进行小区重选，具体地，步骤22还可以包括：
A3、根据测量到的接收信号电平强度值以及第一中间量，计算邻小区的小区选择接收信号电平强度值。例如，终端可参照下述公式计算小区选择接收信号电平强度值Srxlev：
Srxlev＝Q rxlevmeas-offset3。
其中，Srxlev表示邻小区的小区选择接收信号电平强度值，Q rxlevmeas表示实际测量到邻小区的接收信号电平强度值，offset3表示通过邻小区系统消息中携带的该小区自身参数值所计算出的(Q rxlevmin+Q rxlevminoffset)-P compensation-Qoffset temp的结果。
B3、根据测量到的接收信号质量值以及第二中间量，计算邻小区的小区选择信号质量值。例如，终端可参照下述公式计算小区选择接收信号质量值Squal：
Squal＝Q qualmeas-offset4
其中，Squal表示邻小区的小区选择信号质量值，Q qualmeas表示实际测量到邻小区的信号质量值，offset4表示通过邻小区系统消息中携带的该小区自身参数值所计算出的(Q qualmin+Q qualminoffset)-Qoffset temp的结果。
C3、根据小区选择接收信号电平强度值、小区选择信号质量值以及重选到邻小区的重选条件，执行小区重选过程。
进一步地，小区重选过程包括：终端比较邻小区的优先级与源小区的优先级，得到优先级比较结果；根据优先级比较结果确定重选到邻小区的目标重选条件；在满足目标重选条件时，由源小区重选到目标小区，目标小区为 邻小区中的一个；在不满足目标重选条件时，不进行小区重选。终端可以重选到高优先级小区、低优先级小区或同优先级小区。其中，高优先级小区(或称为高优先级频点)、相同优先级小区(或称为相同优先级频点)以及低优先级小区(或称为低优先级频点)是邻小区与源小区的优先级比较结果，即终端从网络设备侧收到的邻小区优先级经过运算后与源小区的优先级进行比较后得到的。若邻小区的目标优先级比源小区的优先级高，则为高优先级小区；若邻小区的目标优先级比源小区的优先级低，则为低优先级小区；若邻小区的目标优先级与源小区的优先级相同，则为相同优先级小区。例如：终端的源小区为LTE小区，且收到了NR小区的优先级；终端的源小区为NR小区，且收到了LTE小区的优先级；或者，终端同时收到了NR小区的优先级与LTE小区的优先级。将终端源小区与接收到的邻小区的优先级进行比较，确定邻小区是高优先级小区、同优先级小区或低优先级小区。
下面将结合不同场景对小区重选做进一步说明。
场景一、邻小区的优先级与源小区的优先级相同，或者，邻小区与源小区同频点
在该场景下，步骤C1、C2和C3可通过以下方式实现：
D1、在邻小区的优先级与源小区的优先级相同、或者邻小区与源小区处于相同频点的情况下，若小区选择接收信号电平强度值和小区选择信号质量值均大于0，则对源小区和邻小区进行评级。也就是说，若满足S准则，即Srxlev>0且Squal>0；那么根据R准则对源小区和邻小区进行评级。
其中，通过以下公式，对源小区和邻小区进行评级；
源小区的评级Rs＝Q meas,s+Q Hyst-Qoffset temp；
邻小区的评级Rn＝Q meas,n+Qoffset-Qoffset temp；
其中，Q meas,s为源小区的参考信号接收功率RSRP测量值，Q Hyst为源小区的测量迟滞，Qoffset temp为源小区的测量偏置；Q meas,n是邻小区的RSRP测量值，Qoffset为邻小区的第一测量偏置，Qoffset temp为邻小区的第二测量偏置。
D21、若源小区未提供评级阈值，则由源小区重选到邻小区中评级最高的小区。其中，评级阈值为可以rangeToBestCell参数，如果网络设备(源小区)未配置rangeToBestCell参数，且满足重选基本条件，终端会发起向评级 结果最好的小区的小区重选过程。
或者，D22、若源小区提供评级阈值，则由源小区重选到第一小区中质量高于门限的波束数量最多的小区，其中，第一小区为邻小区中评级与评级最高小区的评级间的差值小于评级阈值的小区。如果源小区配置了rangeToBestCell参数，且满足重选基本条件，终端会选择所有邻小区中评级与评级最高小区的评级间的差值不超过rangeToBestCell的小区中，具有最多数量的高于门限值的波束的那个小区，发起小区重选过程。
其中，上述重选基本条件包括但不限于：在重选时间间隔Treselection RAT内邻小区的评级都优于源小区，且终端在当前源小区的驻留时间超过预设阈值，如1s。
值得指出的是，同优先级的邻小区和源小区可以是异频小区、同系统小区或异系统小区，本公开的一些实施例对其不做具体限定。
其中，小区重选过程除了上述的源小区与邻小区同优先级的重选场景，还包括以下场景：
场景二、邻小区的优先级低于源小区的优先级
在邻优先级低于源小区的优先级的情况下，若源小区的第一参数低于第一预设阈值，且邻小区的第二参数超过第二预设阈值，则由源小区重选到邻小区。
具体地，在该场景下，当源小区提供源小区的Squal对应的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内源小区的Squal<Thresh Serving,LowQ，且邻小区的Squal>Thresh X,LowQ或邻小区的Srxlev>Thresh X,LowP，则由源小区重选到该邻小区。也就是说，如果系统中广播了thresh Serving,LowQ参数，且终端已经在源小区驻留超过1秒，那么如果在时间间隔Treselection RAT内满足服务小区Squal<Thresh Serving，LowQ并且有低优先级NR/LTE频点上的小区Squal>Thresh X,LowQ，终端会发起向低优先级频点上的该邻小区的重选。
或者，当源小区未提供源小区的所述Thresh Serving,LowQ时，若在重选时间段Treselection RAT内源小区的Srxlev<Thresh Serving,LowP，且邻小区的Srxlev>Thresh X,LowP，则由源小区重选到邻小区；也就是说，如果系统未广播 thresh Serving,LowQ参数，但终端已经在源小区驻留超过1秒，且在时间间隔Treselection RAT内满足服务小区Srxlev<Thresh Serving,LowP并且有低优先级NR/LTE频点上的小区Srxlev>Thresh X,LowP，终端会发起向低优先级频点上的该邻小区的重选。
其中上述参数的定义可参照以下说明，Squal为小区选择信号质量值，Srxlev为小区选择接收信号电平强度值，Thresh Serving,LowQ为源小区的Squal阈值，Thresh Serving,LowP为源小区的Srxlev阈值，Thresh X,LowQ为邻小区的Squal阈值，Thresh X,LowP为邻小区的Srxlev阈值。
场景三、邻小区的优先级高于源小区的优先级
在目标优先级高于源小区的优先级的情况下，若邻小区的第二参数超过第二预设阈值，则由源小区重选到邻小区。
在该场景下，当源小区提供源小区的Squal对应的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内邻小区的Squal>Thresh X,HighQ，则由源小区重选到邻小区；也就是说，如果系统中广播了thresh Serving,LowQ参数，且终端已经在当前源小区驻留超过1秒，那么如果有高优先级NR/LTE频点上的小区满足在时间间隔Treselection RAT内信号质量Squal>Thresh X,HighQ，终端会发起向高优先级频点上的该邻小区的重选。
或者，当源小区未提供源小区的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内邻小区的Srxlev>Thresh X,HighP，则由源小区重选到邻小区；也就是说，如果系统未广播thresh Serving,LowQ参数，但终端已经在源小区驻留超过1秒，且有高优先级频点上的小区满足在时间间隔重选时间段Treselection RAT内Srxlev>Thresh X,HighP，终端会发起向高优先级频点上的该邻邻小区的重选。
其中上述参数可参照以下解释，Squal为小区选择信号质量值，Srxlev为小区选择接收信号电平强度值，Thresh Serving,LowQ为源小区的Squal阈值，Thresh X,HighQ为邻小区的Squal阈值，Thresh X,HighP为邻小区的Srxlev阈值。
其中，重选信息还包括：用于指示邻小区优先级的优先级信息。其中，优先级信息可以包括：基础优先级信息。以LTE小区与NR小区对应的频点优先级上限不同为例，基础优先级信息用于指示LTE小区对应的频点优先级 为0-7中的一个整数，或者指示NR小区对应的频点优先级为0-9中的一个整数。此外，优先级信息还可以包括：基础优先级信息和子优先级信息，其中，子优先级信息的值颗粒度小于基础优先级的值颗粒度。以LTE小区与NR小区对应的频点优先级上限相同为例，基础优先级信息用于指示LTE小区或NR小区对应的频点优先级为0-7中的一个整数。进一步地，子优先级信息可以包括一级值颗粒度小于基础优先级(值颗粒度为1)的子优先级信息，如子优先级信息用于指示NR小区对应的值颗粒度为0.1的次优先级{0.2，0.4，0.6，0.8}或{0.1，0.2，0.3，0.4，0.5，0.6，0.7，0.8，0.9}中的一个值。或者，子优先级信息还可以包括至少两级值颗粒度不同的次优先级信息，例如子优先级信息可以指示NR小区对应的值颗粒度为0.1的次优先级{0.2，0.4，0.6，0.8}或{0.1，0.2，0.3，0.4，0.5，0.6，0.7，0.8，0.9}中的一个值，以及值颗粒度为0.01的次优先级{0.01，0.02，0.03，0.04，0.05，0.06，0.07，0.08，0.09}中的一个值。值得指出是的，本公开的一些实施例中值颗粒度1、0.1和0.01仅作为示例性说明，其他小数取值范围的值颗粒度亦可应用于本公开的一些实施例中，且值颗粒度具体的小数取值范围可以是协议约定的、网络设备配置或网络设备与终端协商确定的。
本公开的一些实施例的小区重选方法中，终端可以获取到邻小区的小区级重选参数，基于小区级重选参数进行小区重选，可保证重选后的小区质量满足驻留需求，避免小区重选后终端连接不稳定的问题。
以上实施例分别详细介绍了不同场景下的小区重选方法，下面本实施例将结合附图对其对应的终端做进一步介绍。
如图3所示，本公开的一些实施例的终端300，能实现上述实施例中获取与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数；根据小区级重选参数以及重选到邻小区的重选条件，执行小区重选过程方法的细节，并达到相同的效果，该终端300具体包括以下功能模块：
获取模块310，用于获取与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数；
重选模块320，用于根据小区级重选参数以及重选到邻小区的重选条件，执行小区重选过程。
其中，重选信息是终端所在源小区的网络设备配置的，或者，重选信息是从历史接收消息中获取到的。
其中，小区级重选参数包括以下参数中的至少一项：
最小接收信号电平强度参数；
最小接收信号电平强度偏移参数；
最小信号质量参数；
最小信号质量偏移参数；
功率补偿参数；
测量偏置参数；
第一目标偏移量，第一目标偏移量为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
第二目标偏移量，第二目标偏移量为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
与接收信号电平强度值相关的第一中间量，第一中间量与最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值相关；
与信号质量值相关的第二中间量，第二中间量与最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值相关。
其中，最小接收信号电平强度参数为：邻小区广播的目标最小接收信号电平强度值；
或，
最小接收信号电平强度参数包括：邻小区对应的频点级最小接收信号电平强度值和第一偏移值，其中，第一偏移值为目标最小接收信号电平强度值与频点级最小接收信号电平强度值之间的差值。
其中，最小接收信号电平强度偏移参数为：邻小区广播的目标最小接收信号电平强度偏移值；
或，
最小接收信号电平强度偏移参数包括：邻小区对应的频点级最小接收信号电平强度偏移值和第二偏移值，其中，第二偏移值为目标最小接收信号电平强度偏移值与频点级最小接收信号电平强度偏移值之间的差值。
其中，最小信号质量参数为：邻小区广播的目标最小信号质量值；
或，
最小信号质量参数包括：邻小区对应的频点级最小信号质量值和第三偏移值，其中，第三偏移值为目标最小信号质量值与频点级最小信号质量值之间的差值。
其中，最小信号质量偏移参数为：邻小区广播的目标最小信号质量偏移值；
或，
最小信号质量偏移参数包括：邻小区对应的频点级最小信号质量偏移值和第四偏移值，其中，第四偏移值为目标最小信号质量偏移值与频点级最小信号质量偏移值之间的差值。
其中，测量偏置参数为：邻小区广播的目标测量偏置值；
或，
测量偏置参数包括：邻小区对应的频点级测量偏置值和第五偏移值，其中，第五偏移值为目标测量偏置值与频点级测量偏置值之间的偏移值。
其中，测量偏置参数包括：连续故障偏移参数和/或小区临时偏移参数。
其中，功率补偿参数是根据最大功率参数和功率等级参数确定的。
其中，最大功率参数为：邻小区对应的目标最大功率值；
或，
最大功率参数包括：邻小区对应的频点级最大功率值和第六偏移值，其中，第六偏移值为目标最大功率值与频点级最大功率值之间的差值。
其中，重选模块320包括：
第一计算子模块，用于根据测量到的接收信号电平强度值以及重选参数中的最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中的至少一项，计算邻小区的小区选择接收信号电平强度值；
第二计算子模块，用于根据测量到的接收信号质量值以及重选参数中的最小信号质量参数、最小信号质量偏移参数和测量偏置参数中的至少一项，计算邻小区的小区选择信号质量值；
重选子模块，用于根据小区选择接收信号电平强度值、小区选择信号质量值以及重选到邻小区的重选条件，执行小区重选过程。
其中，重选模块320包括：
第三计算子模块，用于根据测量到的接收信号电平强度值、第一目标参数值以及第一目标偏移量，计算邻小区的小区选择接收信号电平强度值，其中，第一目标参数值为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的频点级参数值；
第四计算子模块，用于根据测量到的接收信号质量值、第二目标参数值以及第二目标偏移量，计算邻小区的小区选择信号质量值，其中，第二目标参数值为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的频点级参数值；
重选子模块，用于根据小区选择接收信号电平强度值、小区选择信号质量值以及重选到邻小区的重选条件，执行小区重选过程。
其中，重选模块320包括：
第五计算子模块，用于根据测量到的接收信号电平强度值以及第一中间量，计算邻小区的小区选择接收信号电平强度值；
第六计算子模块，用于根据测量到的接收信号质量值以及第二中间量，计算邻小区的小区选择信号质量值；
重选子模块，用于根据小区选择接收信号电平强度值、小区选择信号质量值以及重选到邻小区的重选条件，执行小区重选过程。
其中，重选子模块包括：
评级单元，用于在邻小区的优先级与源小区的优先级相同、或者邻小区与源小区处于相同频点的情况下，若小区选择接收信号电平强度值和小区选择信号质量值均大于0，则对源小区和邻小区进行评级；
第一重选单元，用于若源小区未提供评级阈值，则由源小区重选到邻小区中评级最高的小区，
或者，
第二重选单元，用于若源小区提供评级阈值，则由源小区重选到第一小区中质量高于门限的波束数量最多的小区，其中，第一小区为邻小区中评级与评级最高小区的评级间的差值小于或等于评级阈值的小区。
其中，重选子模块包括：
第三重选单元，用于在邻小区的优先级低于源小区的优先级的情况下，当源小区提供源小区的Squal对应的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内源小区的Squal<Thresh Serving,LowQ，且邻小区的Squal>Thresh X,LowQ或邻小区的Srxlev>Thresh X,LowP，则由源小区重选到邻小区；
或者，
第四重选单元，用于当源小区未提供源小区的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内源小区的Srxlev<Thresh Serving,LowP，且邻小区的Srxlev>Thresh X,LowP，则由源小区重选到邻小区；
其中，Squal为小区选择信号质量值，Srxlev为小区选择接收信号电平强度值，Thresh Serving,LowQ为源小区的Squal阈值，Thresh Serving,LowP为源小区的Srxlev阈值，Thresh X,LowQ为邻小区的Squal阈值，Thresh X,LowP为邻小区的Srxlev阈值。
其中，重选子模块包括：
第五重选单元，用于在邻小区的优先级高于源小区的优先级的情况下，当源小区提供源小区的Squal对应的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内邻小区的Squal>Thresh X,HighQ，则由源小区重选到邻小区；
或者，
第六重选单元，用于当源小区未提供源小区的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内邻小区的Srxlev>Thresh X,HighP，则由源小区重选到邻小区；
其中，Squal为小区选择信号质量值，Srxlev为小区选择接收信号电平强度值，Thresh Serving,LowQ为源小区的Squal阈值，Thresh X,HighQ为邻小区的Squal阈值，Thresh X,HighP为邻小区的Srxlev阈值。
其中，重选信息还包括：邻小区的物理小区标识PCI，PCI与小区级重选 参数对应。
其中，重选信息还包括：用于指示邻小区优先级的优先级信息。
其中，优先级信息包括：基础优先级信息；
或者，优先级信息包括：基础优先级信息和子优先级信息，其中，子优先级信息的值颗粒度小于基础优先级的值颗粒度。
值得指出的是，本公开的一些实施例的终端可以获取到邻小区的小区级重选参数，基于小区级重选参数进行小区重选，可保证重选后的小区质量满足驻留需求，避免小区重选后终端连接不稳定的问题。
为了更好的实现上述目的，进一步地，图4为实现本公开各个实施例的一种终端的硬件结构示意图，该终端40包括但不限于：射频单元41、网络模块42、音频输出单元43、输入单元44、传感器45、显示单元46、用户输入单元47、接口单元48、存储器49、处理器410、以及电源411等部件。本领域技术人员可以理解，图4中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开的一些实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
其中，射频单元41，用于获取与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数；
处理器410，用于根据小区级重选参数以及重选到邻小区的重选条件，执行小区重选过程；
本公开的一些实施例的终端可以获取到邻小区的小区级重选参数，基于小区级重选参数进行小区重选，可保证重选后的小区质量满足驻留需求，避免小区重选后终端连接不稳定的问题。
应理解的是，本公开的一些实施例中，射频单元41可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器410处理；另外，将上行的数据发送给基站。通常，射频单元41包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元41还可以通过无线通信系统与网络和其他设备通信。
终端通过网络模块42为用户提供了无线的宽带互联网访问，如帮助用户 收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元43可以将射频单元41或网络模块42接收的或者在存储器49中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元43还可以提供与终端40执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元43包括扬声器、蜂鸣器以及受话器等。
输入单元44用于接收音频或视频信号。输入单元44可以包括图形处理器(Graphics Processing Unit，GPU)441和麦克风442，图形处理器441对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元46上。经图形处理器441处理后的图像帧可以存储在存储器49(或其它存储介质)中或者经由射频单元41或网络模块42进行发送。麦克风442可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元41发送到移动通信基站的格式输出。
终端40还包括至少一种传感器45，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板461的亮度，接近传感器可在终端40移动到耳边时，关闭显示面板461和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器45还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元46用于显示由用户输入的信息或提供给用户的信息。显示单元46可包括显示面板461，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板461。
用户输入单元47可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元47包括触 控面板471以及其他输入设备472。触控面板471，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板471上或在触控面板471附近的操作)。触控面板471可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器410，接收处理器410发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板471。除了触控面板471，用户输入单元47还可以包括其他输入设备472。具体地，其他输入设备472可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板471可覆盖在显示面板461上，当触控面板471检测到在其上或附近的触摸操作后，传送给处理器410以确定触摸事件的类型，随后处理器410根据触摸事件的类型在显示面板461上提供相应的视觉输出。虽然在图4中，触控面板471与显示面板461是作为两个独立的部件来实现终端的输入和输出功能，但是在某些实施例中，可以将触控面板471与显示面板461集成而实现终端的输入和输出功能，具体此处不做限定。
接口单元48为外部装置与终端40连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元48可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端40内的一个或多个元件或者可以用于在终端40和外部装置之间传输数据。
存储器49可用于存储软件程序以及各种数据。存储器49可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器49可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器410是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器49内的软件程序和/或模块，以及调用存储在存储器49内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器410可包括一个或多个处理单元；可选的，处理器410可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器410中。
终端40还可以包括给各个部件供电的电源411(比如电池)，可选的，电源411可以通过电源管理系统与处理器410逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端40包括一些未示出的功能模块，在此不再赘述。
可选的，本公开的一些实施例还提供一种终端，包括处理器410，存储器49，存储在存储器49上并可在所述处理器410上运行的计算机程序，该计算机程序被处理器410执行时实现上述小区重选方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，终端可以是无线终端也可以是有线终端，无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)，在此不作限定。
本公开的一些实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述小区重选方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
以上实施例从终端侧介绍了本公开的小区重选方法，下面本实施例将结合附图对网络设备侧的小区重选方法做进一步介绍。
如图5所示，本公开的一些实施例的小区重选方法，应用于网络设备侧，该方法包括以下步骤：
步骤51：发送与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数。
其中，邻小区可以是合适的重选小区中的一个，不同的邻小区可配置相同或不同的优先级。其中，合适的重选小区是指终端可以驻留并获得正常服务的小区，终端需要具备有效的USIM，且满足上述终端侧实施例中合适的重选小区所满足的条件，在此不再赘述。
其中，重选信息可以是源小区(或称为服务小区、本小区)配置给终端的，例如重选信息可以是源小区通过无线资源控制(Radio Resource Control，RRC)信令配置给终端和/或通过系统消息广播给终端的。其中，RRC信令可以是RRC释放(RRC release)消息等。系统消息可以是SIB2、SIB4或SIB5等。
其中，本公开的一些实施例的小区级重选参数指的是能够表征邻小区实际网络性能的参数，重选信息中还可以包括邻小区的频点级重选参数，频点级重选参数指的是能够表征邻小区所在频点的网络性能的参数。具体地，小区级重选参数包括以下参数中的至少一项：最小接收信号电平强度参数、最小接收信号电平强度偏移参数、最小信号质量值参数、最小信号质量偏移参数、功率补偿值参数、测量偏置参数、第一目标偏移量、第二目标偏移量、与接收信号电平强度值相关的第一中间量和与信号质量值相关的第二中间量等。其中，第一目标偏移量为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参 数值与频点级参数值的差值之和；第二目标偏移量为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；第一中间量与最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值相关；第二中间量与最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值相关。其中，对于以上参数的解释说明可参照终端侧实施例，网络设备侧实施例不再赘述。
其中值得指出的是，重选信息中还可以包括邻小区的PCI，其中，PCI与小区级重选参数对应。这里所说的PCI与小区级重选参数对应指的是一个PCI对应一套小区级重选参数，即一套小区级重选参数对应于同一邻小区，可联合表征该邻小区的网络性能。其中，一套小区级重选参数可以包括上述提及的多种参数中的至少一项。
其中，重选信息还包括：用于指示邻小区优先级的优先级信息。其中，优先级信息可以包括：基础优先级信息。此外，优先级信息还可以包括：基础优先级信息和子优先级信息，其中，子优先级信息的值颗粒度小于基础优先级的值颗粒度。进一步地，子优先级信息可以包括一级值颗粒度小于基础优先级(值颗粒度为1)的子优先级信息，或者，子优先级信息还可以包括至少两级值颗粒度不同的次优先级信息。值得指出是的，本公开的一些实施例中值颗粒度具体的小数取值范围可以是协议约定的、网络设备配置或网络设备与终端协商确定的。
本公开的一些实施例的小区重选方法中，网络设备为终端配置邻小区的小区级重选参数，可保证终端基于小区级重选参数进行小区重选，可保证重选后的小区质量满足驻留需求，避免小区重选后终端连接不稳定的问题。
以上实施例分别详细介绍了不同场景下的小区重选方法，下面本实施例将结合附图对其对应的网络设备做进一步介绍。
如图6所示，本公开的一些实施例的网络设备600，能实现上述实施例中发送与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数方法的细节，并达到相同的效果，该网络设备600具体包括以下功能模块：
发送模块610，用于发送与小区重选相关的重选信息，其中，所述重选信息包括：邻小区的小区级重选参数。
其中，所述小区级重选参数包括以下参数中的至少一项：
最小接收信号电平强度参数；
最小接收信号电平强度偏移参数；
最小信号质量参数；
最小信号质量偏移参数；
功率补偿参数；
测量偏置参数；
第一目标偏移量，第一目标偏移量为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
第二目标偏移量，第二目标偏移量为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
与接收信号电平强度值相关的第一中间量，第一中间量与最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值相关；
与信号质量值相关的第二中间量，第二中间量与最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值相关。
其中，最小接收信号电平强度参数为：邻小区广播的目标最小接收信号电平强度值；
或，
最小接收信号电平强度参数包括：邻小区对应的频点级最小接收信号电平强度值和第一偏移值，其中，第一偏移值为目标最小接收信号电平强度值与频点级最小接收信号电平强度值之间的差值。
其中，最小接收信号电平强度偏移参数为：邻小区广播的目标最小接收信号电平强度偏移值；
或，
最小接收信号电平强度偏移参数包括：邻小区对应的频点级最小接收信号电平强度偏移值和第二偏移值，其中，第二偏移值为目标最小接收信号电平强度偏移值与频点级最小接收信号电平强度偏移值之间的差值。
其中，最小信号质量参数为：邻小区广播的目标最小信号质量值；
或，
最小信号质量参数包括：邻小区对应的频点级最小信号质量值和第三偏移值，其中，第三偏移值为目标最小信号质量值与频点级最小信号质量值之间的差值。
其中，最小信号质量偏移参数为：邻小区广播的目标最小信号质量偏移值；
或，
最小信号质量偏移参数包括：邻小区对应的频点级最小信号质量偏移值和第四偏移值，其中，第四偏移值为目标最小信号质量偏移值与频点级最小信号质量偏移值之间的差值。
其中，测量偏置参数为：邻小区广播的目标测量偏置值；
或，
测量偏置参数包括：邻小区对应的频点级测量偏置值和第五偏移值，其中，第五偏移值为目标测量偏置值与频点级测量偏置值之间的偏移值。
其中，测量偏置参数包括：连续故障偏移参数和/或小区临时偏移参数。
其中，功率补偿参数是根据最大功率参数和功率等级参数确定的。
其中，最大功率参数为：邻小区对应的目标最大功率值；
或，
最大功率参数包括：邻小区对应的频点级最大功率值和第六偏移值，其中，第六偏移值为目标最大功率值与频点级最大功率值之间的差值。
其中，重选信息还包括：邻小区的物理小区标识PCI，PCI与小区级重选参数对应。
其中，重选信息还包括：用于指示邻小区优先级的优先级信息。
其中，优先级信息包括：基础优先级信息；
或者，优先级信息包括：基础优先级信息和子优先级信息，其中，子优 先级信息的值颗粒度小于基础优先级的值颗粒度。
值得指出的是，本公开的一些实施例的网络设备为终端配置邻小区的小区级重选参数，可保证终端基于小区级重选参数进行小区重选，可保证重选后的小区质量满足驻留需求，避免小区重选后终端连接不稳定的问题。
需要说明的是，应理解以上网络设备和终端的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分模块通过处理元件调用软件的形式实现，部分模块通过硬件的形式实现。例如，确定模块可以为单独设立的处理元件，也可以集成在上述装置的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述装置的存储器中，由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
为了更好的实现上述目的，本公开的一些实施例还提供了一种网络设备，该网络设备包括处理器、存储器以及存储于存储器上并可在处理器上运行的计算机程序，处理器执行计算机程序时实现如上所述的小区重选方法中的步骤。发明实施例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上存储有计算机程序，计算机程序被处理器执行时实现如上所述的小区重选 方法的步骤。
具体地，本公开的一些实施例还提供了一种网络设备。如图7所示，该网络设备700包括：天线71、射频装置72、基带装置73。天线71与射频装置72连接。在上行方向上，射频装置72通过天线71接收信息，将接收的信息发送给基带装置73进行处理。在下行方向上，基带装置73对要发送的信息进行处理，并发送给射频装置72，射频装置72对收到的信息进行处理后经过天线71发送出去。
上述频带处理装置可以位于基带装置73中，以上实施例中网络设备执行的方法可以在基带装置73中实现，该基带装置73包括处理器74和存储器75。
基带装置73例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图7所示，其中一个芯片例如为处理器74，与存储器75连接，以调用存储器75中的程序，执行以上方法实施例中所示的网络设备操作。
该基带装置73还可以包括网络接口76，用于与射频装置72交互信息，该接口例如为通用公共无线接口(common public radio interface，CPRI)。
这里的处理器可以是一个处理器，也可以是多个处理元件的统称，例如，该处理器可以是CPU，也可以是ASIC，或者是被配置成实施以上网络设备所执行方法的一个或多个集成电路，例如：一个或多个微处理器DSP，或，一个或者多个现场可编程门阵列FPGA等。存储元件可以是一个存储器，也可以是多个存储元件的统称。
存储器75可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储 器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请描述的存储器75旨在包括但不限于这些和任意其它适合类型的存储器。
具体地，本公开的一些实施例的网络设备还包括：存储在存储器75上并可在处理器74上运行的计算机程序，处理器74调用存储器75中的计算机程序执行图6所示各模块执行的方法。
具体地，计算机程序被处理器74调用时可用于执行：发送与小区重选相关的重选信息，其中，重选信息包括：邻小区的小区级重选参数。
本公开的一些实施例中的网络设备，为终端配置邻小区的小区级重选参数，可保证终端基于小区级重选参数进行小区重选，可保证重选后的小区质量满足驻留需求，避免小区重选后终端连接不稳定的问题。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同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的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作 为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
此外，需要指出的是，在本公开的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行，某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言，能够理解本公开的方法和装置的全部或者任何步骤或者部件，可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中，以硬件、固件、软件或者它们的组合加以实现，这是本领域普通技术人员在阅读了本公开的说明的情况下运用他们的基本编程技能就能实现的。
因此，本公开的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此，本公开的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说，这样的程序产品也构成本公开，并且存储有这样的程序产品的存储介质也构成本公开。显然，所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。还需要指出的是，在本公开的装置 和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
以上所述的是本公开的可选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以作出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (36)

  1. 一种小区重选方法，应用于终端，包括：
    获取与小区重选相关的重选信息，其中，所述重选信息包括：邻小区的小区级重选参数；
    根据所述小区级重选参数以及重选到所述邻小区的重选条件，执行小区重选过程。
  2. 根据权利要求1所述的小区重选方法，其中，所述重选信息是所述终端所在源小区的网络设备配置的，或者，所述重选信息是从历史接收消息中获取到的。
  3. 根据权利要求1或2所述的小区重选方法，其中，所述小区级重选参数包括以下参数中的至少一项：
    最小接收信号电平强度参数；
    最小接收信号电平强度偏移参数；
    最小信号质量参数；
    最小信号质量偏移参数；
    功率补偿参数；
    测量偏置参数；
    第一目标偏移量，所述第一目标偏移量为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
    第二目标偏移量，所述第二目标偏移量为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
    与接收信号电平强度值相关的第一中间量，所述第一中间量与最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值相关；
    与信号质量值相关的第二中间量，所述第二中间量与最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值相关。
  4. 根据权利要求3所述的小区重选方法，其中，所述最小接收信号电平强度参数为：所述邻小区广播的目标最小接收信号电平强度值；
    或，
    所述最小接收信号电平强度参数包括：所述邻小区对应的频点级最小接收信号电平强度值和第一偏移值，其中，所述第一偏移值为所述目标最小接收信号电平强度值与所述频点级最小接收信号电平强度值之间的差值。
  5. 根据权利要求3所述的小区重选方法，其中，所述最小接收信号电平强度偏移参数为：所述邻小区广播的目标最小接收信号电平强度偏移值；
    或，
    所述最小接收信号电平强度偏移参数包括：所述邻小区对应的频点级最小接收信号电平强度偏移值和第二偏移值，其中，所述第二偏移值为所述目标最小接收信号电平强度偏移值与所述频点级最小接收信号电平强度偏移值之间的差值。
  6. 根据权利要求3所述的小区重选方法，其中，所述最小信号质量参数为：所述邻小区广播的目标最小信号质量值；
    或，
    所述最小信号质量参数包括：所述邻小区对应的频点级最小信号质量值和第三偏移值，其中，所述第三偏移值为所述目标最小信号质量值与所述频点级最小信号质量值之间的差值。
  7. 根据权利要求3所述的小区重选方法，其中，所述最小信号质量偏移参数为：所述邻小区广播的目标最小信号质量偏移值；
    或，
    所述最小信号质量偏移参数包括：所述邻小区对应的频点级最小信号质量偏移值和第四偏移值，其中，所述第四偏移值为所述目标最小信号质量偏移值与所述频点级最小信号质量偏移值之间的差值。
  8. 根据权利要求3所述的小区重选方法，其中，所述测量偏置参数为：所述邻小区广播的目标测量偏置值；
    或，
    所述测量偏置参数包括：所述邻小区对应的频点级测量偏置值和第五偏 移值，其中，所述第五偏移值为所述目标测量偏置值与所述频点级测量偏置值之间的偏移值。
  9. 根据权利要求8所述的小区重选方法，其中，所述测量偏置参数包括：连续故障偏移参数和/或小区临时偏移参数。
  10. 根据权利要求3所述的小区重选方法，其中，所述功率补偿参数是根据最大功率参数和功率等级参数确定的。
  11. 根据权利要求10所述的小区重选方法，其中，所述最大功率参数为：所述邻小区对应的目标最大功率值；
    或，
    所述最大功率参数包括：所述邻小区对应的频点级最大功率值和第六偏移值，其中，所述第六偏移值为所述目标最大功率值与所述频点级最大功率值之间的差值。
  12. 根据权利要求3所述的小区重选方法，其中，根据所述重选参数以及重选到所述邻小区的重选条件，执行小区重选过程的步骤，包括：
    根据测量到的接收信号电平强度值以及所述重选参数中的所述最小接收信号电平强度参数、所述最小接收信号电平强度偏移参数、所述功率补偿参数和所述测量偏置参数中的至少一项，计算所述邻小区的小区选择接收信号电平强度值；
    根据测量到的接收信号质量值以及所述重选参数中的所述最小信号质量参数、所述最小信号质量偏移参数和所述测量偏置参数中的至少一项，计算所述邻小区的小区选择信号质量值；
    根据所述小区选择接收信号电平强度值、所述小区选择信号质量值以及重选到所述邻小区的重选条件，执行小区重选过程。
  13. 根据权利要求3所述的小区重选方法，其中，根据所述重选参数以及重选到所述邻小区的重选条件，执行小区重选过程的步骤，包括：
    根据测量到的接收信号电平强度值、第一目标参数值以及所述第一目标偏移量，计算所述邻小区的小区选择接收信号电平强度值，其中，所述第一目标参数值为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的频点级参数值；
    根据测量到的接收信号质量值、第二目标参数值以及所述第二目标偏移量，计算所述邻小区的小区选择信号质量值，其中，所述第二目标参数值为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的频点级参数值；
    根据所述小区选择接收信号电平强度值、所述小区选择信号质量值以及重选到所述邻小区的重选条件，执行小区重选过程。
  14. 根据权利要求3所述的小区重选方法，其中，根据所述重选参数以及重选到所述邻小区的重选条件，执行小区重选过程的步骤，包括：
    根据测量到的接收信号电平强度值以及第一中间量，计算所述邻小区的小区选择接收信号电平强度值；
    根据测量到的接收信号质量值以及第二中间量，计算所述邻小区的小区选择信号质量值；
    根据所述小区选择接收信号电平强度值、所述小区选择信号质量值以及重选到所述邻小区的重选条件，执行小区重选过程。
  15. 根据权利要求11至13中任一项所述的小区重选方法，其中，根据所述小区选择接收信号电平强度值、所述小区选择信号质量值以及重选到所述邻小区的重选条件，执行小区重选过程的步骤，包括：
    在所述邻小区的优先级与源小区的优先级相同、或者所述邻小区与所述源小区处于相同频点的情况下，若所述小区选择接收信号电平强度值和所述小区选择信号质量值均大于0，则对所述源小区和所述邻小区进行评级；
    若所述源小区未提供评级阈值，则由所述源小区重选到所述邻小区中评级最高的小区，
    或者，
    若所述源小区提供所述评级阈值，则由所述源小区重选到第一小区中质量高于门限的波束数量最多的小区，其中，所述第一小区为所述邻小区中评级与评级最高小区的评级间的差值小于或等于所述评级阈值的小区。
  16. 根据权利要求11至13中任一项所述的小区重选方法，其中，根据所述小区选择接收信号电平强度值、所述小区选择信号质量值以及重选到所述邻小区的重选条件，执行小区重选过程的步骤，包括：
    在所述邻小区的优先级低于源小区的优先级的情况下，当所述源小区提供所述源小区的Squal对应的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内所述源小区的Squal<Thresh Serving,LowQ，且所述邻小区的Squal>Thresh X,LowQ或所述邻小区的Srxlev>Thresh X,LowP，则由所述源小区重选到所述邻小区；
    或者，
    当所述源小区未提供所述源小区的所述Thresh Serving,LowQ时，若在重选时间段Treselection RAT内所述源小区的Srxlev<Thresh Serving,LowP，且所述邻小区的Srxlev>Thresh X,LowP，则由所述源小区重选到所述邻小区；
    其中，Squal为小区选择信号质量值，Srxlev为小区选择接收信号电平强度值，Thresh Serving,LowQ为所述源小区的Squal阈值，Thresh Serving,LowP为所述源小区的Srxlev阈值，Thresh X,LowQ为所述邻小区的Squal阈值，Thresh X,LowP为所述邻小区的Srxlev阈值。
  17. 根据权利要求11至13中任一项所述的小区重选方法，其中，根据所述小区选择接收信号电平强度值、所述小区选择信号质量值以及重选到所述邻小区的重选条件，执行小区重选过程的步骤，包括：
    在所述邻小区的优先级高于源小区的优先级的情况下，当所述源小区提供所述源小区的Squal对应的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内所述邻小区的Squal>Thresh X,HighQ，则由所述源小区重选到所述邻小区；
    或者，
    当所述源小区未提供所述源小区的所述Thresh Serving,LowQ时，若在重选时间段Treselection RAT内所述邻小区的Srxlev>Thresh X,HighP，则由所述源小区重选到所述邻小区；
    其中，Squal为小区选择信号质量值，Srxlev为小区选择接收信号电平强度值，Thresh Serving,LowQ为所述源小区的Squal阈值，Thresh X,HighQ为所述邻小区的Squal阈值，Thresh X,HighP为所述邻小区的Srxlev阈值。
  18. 根据权利要求1所述的小区重选方法，其中，所述重选信息还包括：所述邻小区的物理小区标识PCI，所述PCI与所述小区级重选参数对应。
  19. 根据权利要求1所述的小区重选方法，其中，所述重选信息还包括：用于指示所述邻小区优先级的优先级信息。
  20. 根据权利要求19所述的小区重选方法，其中，所述优先级信息包括：基础优先级信息；
    或者，所述优先级信息包括：基础优先级信息和子优先级信息，其中，所述子优先级信息的值颗粒度小于所述基础优先级的值颗粒度。
  21. 一种终端，包括：
    获取模块，用于获取与小区重选相关的重选信息，其中，所述重选信息包括：邻小区的小区级重选参数；
    重选模块，用于根据所述小区级重选参数以及重选到所述邻小区的重选条件，执行小区重选过程。
  22. 根据权利要求21所述的终端，其中，所述重选信息是所述终端所在源小区的网络设备配置的，或者，所述重选信息是从历史接收消息中获取到的。
  23. 根据权利要求21或22所述的终端，其中，所述小区级重选参数包括以下参数中的至少一项：
    最小接收信号电平强度参数；
    最小接收信号电平强度偏移参数；
    最小信号质量参数；
    最小信号质量偏移参数；
    功率补偿参数；
    测量偏置参数；
    第一目标偏移量，所述第一目标偏移量为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
    第二目标偏移量，所述第二目标偏移量为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
    与接收信号电平强度值相关的第一中间量，所述第一中间量与最小接收 信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值相关；
    与信号质量值相关的第二中间量，所述第二中间量与最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值相关。
  24. 根据权利要求23所述的终端，其中，所述重选模块包括：
    第一计算子模块，用于根据测量到的接收信号电平强度值以及所述重选参数中的所述最小接收信号电平强度参数、所述最小接收信号电平强度偏移参数、所述功率补偿参数和所述测量偏置参数中的至少一项，计算所述邻小区的小区选择接收信号电平强度值；
    第二计算子模块，用于根据测量到的接收信号质量值以及所述重选参数中的所述最小信号质量参数、所述最小信号质量偏移参数和所述测量偏置参数中的至少一项，计算所述邻小区的小区选择信号质量值；
    重选子模块，用于根据所述小区选择接收信号电平强度值、所述小区选择信号质量值以及重选到所述邻小区的重选条件，执行小区重选过程。
  25. 根据权利要求23所述的终端，其中，所述重选模块包括：
    第三计算子模块，用于根据测量到的接收信号电平强度值、第一目标参数值以及所述第一目标偏移量，计算所述邻小区的小区选择接收信号电平强度值，其中，所述第一目标参数值为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的频点级参数值；
    第四计算子模块，用于根据测量到的接收信号质量值、第二目标参数值以及所述第二目标偏移量，计算所述邻小区的小区选择信号质量值，其中，所述第二目标参数值为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的频点级参数值；
    重选子模块，用于根据所述小区选择接收信号电平强度值、所述小区选择信号质量值以及重选到所述邻小区的重选条件，执行小区重选过程。
  26. 根据权利要求23所述的终端，其中，所述重选模块包括：
    第五计算子模块，用于根据测量到的接收信号电平强度值以及第一中间量，计算所述邻小区的小区选择接收信号电平强度值；
    第六计算子模块，用于根据测量到的接收信号质量值以及第二中间量，计算所述邻小区的小区选择信号质量值；
    重选子模块，用于根据所述小区选择接收信号电平强度值、所述小区选择信号质量值以及重选到所述邻小区的重选条件，执行小区重选过程。
  27. 根据权利要求24至26中任一项所述的终端，其中，所述重选子模块包括：
    评级单元，用于在所述邻小区的优先级与源小区的优先级相同、或者所述邻小区与所述源小区处于相同频点的情况下，若所述小区选择接收信号电平强度值和所述小区选择信号质量值均大于0，则对所述源小区和所述邻小区进行评级；
    第一重选单元，用于若所述源小区未提供评级阈值，则由所述源小区重选到所述邻小区中评级最高的小区，
    或者，
    第二重选单元，用于若所述源小区提供所述评级阈值，则由所述源小区重选到第一小区中质量高于门限的波束数量最多的小区，其中，所述第一小区为所述邻小区中评级与评级最高小区的评级间的差值小于或等于所述评级阈值的小区。
  28. 根据权利要求24至26中任一项所述的终端，其中，所述重选子模块包括：
    第三重选单元，用于在所述邻小区的优先级低于源小区的优先级的情况下，当所述源小区提供所述源小区的Squal对应的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内所述源小区的Squal<Thresh Serving,LowQ，且所述邻小区的Squal>Thresh X,LowQ或所述邻小区的Srxlev>Thresh X,LowP，则由所述源小区重选到所述邻小区；
    或者，
    第四重选单元，用于当所述源小区未提供所述源小区的所述Thresh Serving,LowQ时，若在重选时间段Treselection RAT内所述源小区的Srxlev<Thresh Serving,LowP，且所述邻小区的Srxlev>Thresh X,LowP，则由所述源小区重选到所述邻小区；
    其中，Squal为小区选择信号质量值，Srxlev为小区选择接收信号电平强度值，Thresh Serving,LowQ为所述源小区的Squal阈值，Thresh Serving,LowP为所述源小区的Srxlev阈值，Thresh X,LowQ为所述邻小区的Squal阈值，Thresh X,LowP为所述邻小区的Srxlev阈值。
  29. 根据权利要求24至26中任一项所述的终端，其中，所述重选子模块包括：
    第五重选单元，用于在所述邻小区的优先级高于源小区的优先级的情况下，当所述源小区提供所述源小区的Squal对应的Thresh Serving,LowQ时，若在重选时间段Treselection RAT内所述邻小区的Squal>Thresh X,HighQ，则由所述源小区重选到所述邻小区；
    或者，
    第六重选单元，用于当所述源小区未提供所述源小区的所述Thresh Serving,LowQ时，若在重选时间段Treselection RAT内所述邻小区的Srxlev>Thresh X,HighP，则由所述源小区重选到所述邻小区；
    其中，Squal为小区选择信号质量值，Srxlev为小区选择接收信号电平强度值，Thresh Serving,LowQ为所述源小区的Squal阈值，Thresh X,HighQ为所述邻小区的Squal阈值，Thresh X,HighP为所述邻小区的Srxlev阈值。
  30. 一种终端，所述终端包括处理器、存储器以及存储于所述存储器上并在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至20中任一项所述的小区重选方法的步骤。
  31. 一种小区重选方法，应用于网络设备，包括：
    发送与小区重选相关的重选信息，其中，所述重选信息包括：邻小区的小区级重选参数。
  32. 根据权利要求31所述的小区重选方法，其中，所述小区级重选参数包括以下参数中的至少一项：
    最小接收信号电平强度参数；
    最小接收信号电平强度偏移参数；
    最小信号质量参数；
    最小信号质量偏移参数；
    功率补偿参数；
    测量偏置参数；
    第一目标偏移量，所述第一目标偏移量为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
    第二目标偏移量，所述第二目标偏移量为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
    与接收信号电平强度值相关的第一中间量，所述第一中间量与最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值相关；
    与信号质量值相关的第二中间量，所述第二中间量与最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值相关。
  33. 一种网络设备，包括：
    发送模块，用于发送与小区重选相关的重选信息，其中，所述重选信息包括：邻小区的小区级重选参数。
  34. 根据权利要求33所述的网络设备，其中，所述小区级重选参数包括以下参数中的至少一项：
    最小接收信号电平强度参数；
    最小接收信号电平强度偏移参数；
    最小信号质量参数；
    最小信号质量偏移参数；
    功率补偿参数；
    测量偏置参数；
    第一目标偏移量，所述第一目标偏移量为最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数值的差值之和；
    第二目标偏移量，所述第二目标偏移量为最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值与频点级参数 值的差值之和；
    与接收信号电平强度值相关的第一中间量，所述第一中间量与最小接收信号电平强度参数、最小接收信号电平强度偏移参数、功率补偿参数和测量偏置参数中至少一项参数的小区级参数值相关；
    与信号质量值相关的第二中间量，所述第二中间量与最小信号质量参数、最小信号质量偏移参数和测量偏置参数中至少一项参数的小区级参数值相关。
  35. 一种网络设备，所述网络设备包括处理器、存储器以及存储于所述存储器上并在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求31或32所述的小区重选方法的步骤。
  36. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至20、31和32中任一项所述的小区重选方法的步骤。
PCT/CN2019/097238 2018-08-09 2019-07-23 小区重选方法、终端及网络设备 WO2020029794A1 (zh)

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