WO2020077541A1 - 一种小区选择准则的应用方法及装置 - Google Patents

一种小区选择准则的应用方法及装置 Download PDF

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Publication number
WO2020077541A1
WO2020077541A1 PCT/CN2018/110511 CN2018110511W WO2020077541A1 WO 2020077541 A1 WO2020077541 A1 WO 2020077541A1 CN 2018110511 W CN2018110511 W CN 2018110511W WO 2020077541 A1 WO2020077541 A1 WO 2020077541A1
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Prior art keywords
threshold
terminal
cell selection
selection criterion
mode
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PCT/CN2018/110511
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English (en)
French (fr)
Inventor
王宏
马丁布莱恩•亚历山大
张戬
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华为技术有限公司
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Priority to PCT/CN2018/110511 priority Critical patent/WO2020077541A1/zh
Publication of WO2020077541A1 publication Critical patent/WO2020077541A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technologies, and in particular, to an application method and device of cell selection criteria.
  • LTE long-term evolution
  • MTC machine type communication
  • NB-IoT narrow-band Internet of Things
  • the terminal is required to achieve low power consumption (low power consumption, low cost), Low complexity (low complexity).
  • the signal coverage strength may not meet the signal reception requirements, so the MTC is enhanced to enable the base station and the terminal to support enhanced coverage (CE).
  • CE enhanced coverage
  • the main method for achieving enhanced coverage is to repeatedly send uplink or downlink signals multiple times, and to achieve the purpose of improving the success rate of data reception through multiple reception combining.
  • MTC works on a narrow band (narrowband), which is beneficial to reduce the operating bandwidth of the MTC type terminal, thereby reducing the power consumption of the MTC type terminal, thereby achieving the requirements of low power consumption and low cost.
  • the MTC type terminals with low cost that work in narrow bands are classified as a type of terminal, such as a bandwidth reduction reduced complexity (BL) terminal.
  • BL bandwidth reduction reduced complexity
  • Such terminals are, for example, water meters and electricity meters.
  • ordinary terminals that support working in broadband are classified as a type of terminal, such as non-bandwidth reduced low complexity non-BL terminals, and non-BL terminals are, for example, mobile phones.
  • Ordinary terminals can also support enhanced coverage. Compared to enhanced coverage, the original LTE coverage can be called normal coverage.
  • Non-BL terminals supporting enhanced coverage work in normal coverage mode under normal coverage, and in enhanced coverage mode (CE mode) under enhanced coverage.
  • CE mode enhanced coverage mode
  • non-BL terminals that support enhanced coverage work in normal coverage mode, which consumes a lot of power and costs.
  • the present application provides an application method and device of a cell selection criterion to reduce power consumption and cost of a non-BL terminal supporting enhanced coverage in a normal coverage mode.
  • a method for applying a cell selection criterion is provided.
  • the method may be executed by a terminal.
  • the method is specifically implemented by the following steps: the terminal receives system information from a network device, and the system information includes a first threshold.
  • the first threshold is used for an improved coverage enhancement mode, and the terminal determines that the terminal is in normal coverage of the cell when it is determined that the first cell selection criterion is satisfied according to the first threshold.
  • the first threshold is used for improved coverage enhancement mode, which can be replaced by other terms.
  • the first threshold is used for enhanced coverage enhancement mode (enhanced CE or mode enhancement), or the first threshold is used for extreme coverage mode (extreme coverage mode) or enhanced coverage mode (CE mode).
  • the first threshold is used for non-bandwidth reduced low-complexity non-BL terminals.
  • the improved coverage enhancement mode, enhanced coverage enhancement mode, extreme coverage mode, or enhanced coverage mode refers to when a conventional terminal is in a traditional normal coverage range and a terminal supporting the above mode is in the above traditional terminal position, It meets the traditional normal coverage cell selection criterion, but does not satisfy the new normal coverage cell selection criterion based on the first threshold. At this time, the terminal supporting the above mode works in the enhanced coverage mode.
  • the terminal is a non-bandwidth reduced low complexity non-BL terminal.
  • the system information further includes a second threshold, and the second threshold is used to determine whether a second cell selection criterion is satisfied, and the terminal ignores the second threshold.
  • the second threshold may be used by the second-type terminal to determine whether the cell selection criterion for normal coverage is satisfied, that is, the second-type terminal determines when the second cell selection criterion is satisfied.
  • the second type terminal is a traditional terminal different from the first type terminal, so that after receiving the system information, the traditional terminal can ignore the first threshold and still use the second threshold to determine whether the cell selection criteria for normal coverage are satisfied. It does not affect the traditional terminal to choose a cell to camp on.
  • the first threshold is greater than the second threshold, which is equivalent to raising the threshold in the cell selection criterion that originally judged normal coverage, then the range of normal coverage is reduced, and the terminal only determines When the cell selection criterion is satisfied, it is considered to be under the normal coverage of the cell.
  • the terminal selects to use the enhanced coverage mode for operation. Since the terminal operating in the normal coverage mode consumes more power than the enhanced coverage mode, by reducing the range of normal coverage, the terminal in the part of the normal coverage originally uses the enhanced coverage. Mode work.
  • the first threshold is a threshold offset value.
  • the terminal when the terminal meets the first cell selection criterion in the first cell, the second cell satisfies the second cell selection criterion and does not satisfy the first cell selection criterion, the terminal may use the measured RSRP values of the two cells ( And / or RSRQ value) to select the camping cell.
  • a method for applying a cell selection criterion may be executed by a terminal.
  • the method is specifically implemented by the following steps: the terminal receives system information from a network device, and the system information includes a first threshold.
  • the first threshold is used for the improved coverage enhancement mode; the terminal determines that the terminal is in the improved coverage enhancement mode according to the first threshold.
  • the first threshold is used for improved coverage enhancement mode, which can be replaced by other terms.
  • the first threshold is used for enhanced coverage enhancement mode (enhanced CE or mode enhancement), or the threshold is used for extreme coverage mode (extreme coverage mode) or enhanced coverage mode (CE mode).
  • the first threshold is used for non-bandwidth reduced low-complexity non-BL terminals.
  • the terminal is a non-bandwidth reduced low complexity non-BL terminal.
  • the improved coverage enhancement mode, enhanced coverage enhancement mode, extreme coverage mode, or enhanced coverage mode refers to that the terminal works in the enhanced coverage mode under normal coverage.
  • the first threshold is used to determine whether the first cell selection criterion is satisfied; the system information further includes a second threshold, and the second threshold is used to determine whether the second cell selection criterion is satisfied.
  • the second threshold is used by traditional LTE terminals to determine whether the cell selection criteria for normal coverage are met. That is, when determining that the second cell selection criterion is satisfied, the conventional LTE terminal determines to be in normal coverage of the cell. In this way, after receiving the system information, the conventional terminal can ignore the first threshold and still use the second threshold to determine whether the cell selection criteria for normal coverage are satisfied. It does not affect the traditional terminal to choose a cell to camp on.
  • the terminal determines that the terminal is in the improved coverage enhancement mode when it is determined that the first cell selection criterion is not satisfied and the second cell selection criterion is satisfied.
  • the terminal will use the enhanced coverage mode to work, for example, to monitor the MPDCCH on a narrow band. In this way, the terminal is operated in an enhanced coverage mode in a part of the original normal coverage, thereby reducing power consumption and cost.
  • the first threshold is greater than the second threshold.
  • the first threshold is a threshold offset value.
  • the terminal when the terminal meets the first cell selection criterion in the first cell, the second cell satisfies the second cell selection criterion and does not satisfy the first cell selection criterion, the terminal may use the measured RSRP values of the two cells ( And / or RSRQ value) to select the camping cell.
  • the value of the first threshold is equal to the threshold of the existing CE mode A.
  • a method for applying a cell selection criterion may be executed by a terminal.
  • the method is specifically implemented by the following steps: the terminal receives system information from a network device, and the system information includes a threshold value and a threshold deviation Shift value, the threshold offset value is used for improved coverage enhancement mode; the terminal determines that the terminal is in normal coverage of the cell according to the threshold value and the threshold offset value.
  • the threshold offset value By introducing the threshold offset value, on the basis of not affecting the original traditional terminal to choose the camping cell, it can enable non-BL terminals supporting coverage enhancement to determine the normal coverage according to the new threshold. To a certain extent, it may be achieved in the original Some areas that are normally covered work on a narrow band, thereby reducing terminal power consumption and cost.
  • the threshold offset value is used for improved coverage enhancement mode, which can be replaced by other terms.
  • the threshold offset value is used for enhanced coverage enhancement mode (enhanced CE or mode enhancement), or the threshold offset value is used for first extreme coverage mode (extreme coverage mode) or enhanced coverage mode ( CE mode).
  • the offset value is used for non-bandwidth reduced low-complexity non-BL terminals.
  • the improved coverage enhancement mode, enhanced coverage enhancement mode, extreme coverage mode, or enhanced coverage mode refers to when a conventional terminal is in a traditional normal coverage range and a terminal supporting the above mode is in the above traditional terminal position It meets the traditional normal coverage cell selection criterion, but does not satisfy the new normal coverage cell selection criterion based on the first threshold. At this time, the terminal supporting the above mode works in the enhanced coverage mode.
  • the terminal is a non-bandwidth reduced low complexity non-BL terminal.
  • a value determined by the threshold offset value and the threshold value is used to determine whether the first cell selection criterion is satisfied; the threshold value is used to determine whether the second cell selection criterion is satisfied .
  • the system information further includes a second threshold.
  • the second threshold may be used by the second-type terminal to determine whether the cell selection criterion for normal coverage is satisfied, that is, the second-type terminal determines when the second cell selection criterion is satisfied.
  • the second type terminal is a traditional terminal different from the first type terminal, so that after receiving the system information, the traditional terminal can ignore the first threshold and still use the second threshold to determine whether the cell selection criteria for normal coverage are satisfied. It does not affect the traditional terminal to choose a cell to camp on.
  • the threshold offset value is greater than zero.
  • a value determined by the threshold offset value and the threshold value is the sum of the threshold offset value and the threshold value. It is equivalent to raising the threshold in the cell selection criterion that originally judged normal coverage, then the range of normal coverage is reduced, and the terminal only determines the first cell selection based on a value determined according to the threshold offset value and the threshold When the criteria are met, it is considered to be under the normal coverage of the cell.
  • the terminal selects to use the enhanced coverage mode for operation. Since the terminal operating in the normal coverage mode consumes more power than the enhanced coverage mode, by reducing the range of normal coverage, the terminal in the part of the normal coverage originally uses the enhanced coverage. Mode work.
  • the terminal when the terminal meets the first cell selection criterion in the first cell, the second cell satisfies the second cell selection criterion and does not satisfy the first cell selection criterion, the terminal may use the measured RSRP values of the two cells ( And / or RSRQ value) to select the camping cell.
  • a method for applying a cell selection criterion may be executed by a terminal.
  • the method is specifically implemented by the following steps: the terminal receives system information from a network device, and the system information includes a threshold value and a threshold deviation Shift value, the threshold offset value is used in the improved coverage enhancement mode; the terminal determines that the terminal is in the improved coverage enhancement mode according to the threshold value and the threshold offset value.
  • the threshold offset value By introducing the threshold offset value, on the basis of not affecting the original traditional terminal to choose the camping cell, it can enable non-BL terminals supporting coverage enhancement to determine the normal coverage according to the new threshold. To a certain extent, it may be achieved in the original Some areas that are normally covered work on a narrow band, thereby reducing terminal power consumption and cost.
  • the threshold offset value is used for improved coverage enhancement mode, which can be replaced by other terms.
  • the threshold offset value is used for enhanced coverage enhancement mode (enhanced CE or mode enhancement), or the threshold offset value is used for first extreme coverage mode (extreme coverage mode) or enhanced coverage mode ( CE mode).
  • the offset value is used for non-bandwidth reduced low-complexity non-BL terminals.
  • the improved coverage enhancement mode, enhanced coverage enhancement mode, extreme coverage mode, or enhanced coverage mode refers to that the terminal works in the enhanced coverage mode under normal coverage.
  • the terminal is a non-bandwidth reduced low complexity non-BL terminal.
  • a value determined by the threshold offset value and the threshold value is used to determine whether the first cell selection criterion is satisfied; the threshold value is used to determine whether the second cell selection criterion is satisfied .
  • the threshold value is used by a conventional LTE terminal to determine whether a cell selection criterion for normal coverage is satisfied. That is, when determining that the second cell selection criterion is satisfied, the conventional LTE terminal determines to be in normal coverage of the cell. In this way, after receiving the system information, the conventional terminal can ignore the threshold offset value and still use the threshold value to determine whether the cell selection criteria for normal coverage are satisfied. It does not affect the traditional terminal to choose a cell to camp on.
  • the terminal determines that the terminal is in the second improved coverage enhancement mode when it is determined that the first cell selection criterion is not satisfied and the second cell selection criterion is satisfied.
  • the terminal will use the enhanced coverage mode to work, for example, to monitor the MPDCCH on a narrow band. In this way, the terminal is operated in an enhanced coverage mode in a part of the original normal coverage, thereby reducing power consumption and cost.
  • the first threshold is greater than the second threshold.
  • the terminal when the terminal meets the first cell selection criterion in the first cell, the second cell satisfies the second cell selection criterion and does not satisfy the first cell selection criterion, the terminal may use the measured RSRP values of the two cells ( And / or RSRQ value) to select the camping cell.
  • the value of the first threshold is equal to the threshold of the existing CE mode A.
  • a method for applying a cell selection criterion may be implemented by a network device.
  • the method is specifically implemented by the following steps: the network device generates system information, the system information includes a first threshold, and the first A threshold is used for improved coverage enhancement mode; the network device sends the system information to the terminal.
  • the threshold offset value on the basis of not affecting the original traditional terminal to choose the camping cell, it can enable non-BL terminals supporting coverage enhancement to determine the normal coverage according to the new threshold. To a certain extent, it may be achieved in the original Some areas that are normally covered work on a narrow band, thereby reducing terminal power consumption and cost.
  • the system information further includes a second threshold, the first threshold is used to determine whether the first cell selection criterion is satisfied, and the second threshold is used to determine whether the second cell selection criterion is satisfied.
  • the first threshold is used for improved coverage enhancement mode, which can be replaced by other terms.
  • the first threshold is used for enhanced coverage enhancement mode (enhanced CE or mode enhancement), or the threshold is used for extreme coverage mode (extreme coverage mode) or enhanced coverage mode (CE mode).
  • the first threshold is used for non-bandwidth reduced low-complexity non-BL terminals.
  • the improved coverage enhancement mode, enhanced coverage enhancement mode, extreme coverage mode, or enhanced coverage mode refers to that the terminal works in the enhanced coverage mode under normal coverage.
  • a method for applying a cell selection criterion may be implemented by a network device.
  • the method is specifically implemented by the following steps: the network device generates system information, where the system information includes a first threshold and a second threshold The first threshold is used by the terminal of the first type to determine whether the first cell selection criterion of normal coverage is satisfied, and the second threshold is used by the terminal of the second type to determine whether the second cell selection criterion of normal coverage is satisfied.
  • the network device sends the system information to the terminal.
  • the first threshold is used for improved coverage enhancement mode, or the first threshold is used for enhanced coverage enhancement mode (enhanced CE mode or CE mode enhancement), or the first threshold is used for extreme Coverage mode (extreme coverage mode) or enhanced coverage mode (CE mode). Or, optionally, the first threshold is used for non-bandwidth reduced low-complexity non-BL terminals.
  • the improved coverage enhancement mode, enhanced coverage enhancement mode, extreme coverage mode, or enhanced coverage mode refers to when a conventional terminal is in a traditional normal coverage range and a terminal supporting the above mode is in the above traditional terminal position, It meets the traditional normal coverage cell selection criterion, but does not satisfy the new normal coverage cell selection criterion based on the first threshold. At this time, the terminal supporting the above mode works in the enhanced coverage mode.
  • the terminal is a non-bandwidth reduced low complexity non-BL terminal.
  • a device for applying a cell selection criterion is provided.
  • the device is applied to a terminal or the device is a terminal.
  • the device has the possibility to implement any of the first to fourth aspects and the first to fourth aspects.
  • the function of the method in the design includes means corresponding to the steps or functions described in the method in any of the possible designs in the first to fourth aspects and the first to fourth aspects above.
  • the steps or functions may be implemented by software, or by hardware (such as a circuit), or by a combination of hardware and software.
  • the above-mentioned device includes one or more processors and a communication unit.
  • the one or more processors are configured to support an application device of the cell selection criterion to perform the functions in the above method. For example, receiving system information from a network device, and determining that the terminal is in an improved coverage enhancement mode according to the first threshold.
  • the communication unit is used to support the application device of the cell selection criterion to communicate with other devices to implement receiving and / or sending functions. For example, receiving system information from a network device.
  • the device may further include one or more memories, which are used to couple with the processor, and store necessary program instructions and / or data of the device.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.
  • the communication unit may be a transceiver or a transceiver circuit.
  • the transceiver may also be an input / output circuit or an interface.
  • the device may also be a communication chip.
  • the communication unit may be an input / output circuit or an interface of a communication chip.
  • the above resource mapping device includes a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver or the input / output circuit to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to run the computer program in the memory so that the device performs the first to fourth aspects and the first to the above Any possible design method in the fourth aspect.
  • a device for applying a cell selection criterion is provided.
  • the device is applied to a network device or the device is a network device.
  • the device has the possibility of implementing any one of the fifth, sixth, and fifth aspects.
  • the function of the method in any possible design of the sixth aspect which includes means corresponding to the steps or functions described in the above aspect.
  • the steps or functions may be implemented by software, or by hardware (such as a circuit), or by a combination of hardware and software.
  • the above-mentioned device includes one or more processors and a communication unit.
  • the one or more processors are configured to support an application device of the cell selection criterion to perform the functions in the above method. For example, generating system information.
  • the communication unit is used to support the application device of the cell selection criterion to communicate with other devices to implement receiving and / or sending functions. For example, the system information is sent to the terminal.
  • the device may further include one or more memories, which are used to couple with the processor, and store necessary program instructions and / or data of the device.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.
  • the communication unit may be a transceiver or a transceiver circuit.
  • the transceiver may also be an input / output circuit or an interface.
  • the device may also be a communication chip.
  • the communication unit may be an input / output circuit or an interface of a communication chip.
  • the device for indicating resource mapping includes a transceiver, a processor, and a memory.
  • the processor is used to control a transceiver or an input / output circuit to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to run the computer program in the memory so that the resource mapping device performs the fifth aspect and the sixth aspect Aspect, any possible design of the fifth aspect, and any possible design method of the sixth aspect.
  • a system including the devices provided in the seventh and eighth aspects.
  • a computer-readable storage medium for storing a computer program, the computer program including instructions for performing the above aspects or any possible design method in each aspect.
  • a computer program product includes: computer program code, which, when the computer program code runs on a computer, causes the computer to perform the above aspects or any of the above aspects In your design.
  • FIG. 1 is a schematic diagram of an applicable communication system architecture in an embodiment of this application
  • FIG. 2 is a schematic flowchart of an application method of a cell selection criterion in an embodiment of this application
  • FIG. 3 is one of the schematic diagrams of relationships between coverage ranges or coverage modes in embodiments of the present application.
  • FIG. 4 is a second schematic diagram of the relationship between coverage ranges or coverage modes in an embodiment of the present application.
  • FIG. 5 is a first schematic structural diagram of an application device for cell selection criteria in an embodiment of the present application.
  • FIG. 6 is a second structural diagram of an application device of a cell selection criterion in an embodiment of this application.
  • Embodiments of the present application provide a method and device for applying a cell selection criterion, to enable a terminal to work in an enhanced coverage mode under normal coverage, thereby reducing terminal power consumption.
  • the method provided in the embodiments of the present application may be applied to a fourth generation (4th generation, 4G) communication system, a fifth generation (5th generation, 5G) communication system, or various future communication systems. Specifically, it can be applied to MTC communication scenarios and NB-IoT communication scenarios.
  • the communication system 100 includes: a network device 101 and one or more terminals 102.
  • the network device 101 may also be connected to the core network.
  • the network device 101 can communicate with the IP network 103 through the core network.
  • the IP network 103 may be: the Internet, a private IP network, or other data networks.
  • the network device 101 provides services to the terminals 102 within the coverage.
  • the network device 101 provides wireless access to one or more terminals 102 within the coverage of the network device 101.
  • the communication system 100 may include multiple network devices, and may also include network devices 101 '. There may be overlapping areas in the coverage between network devices, for example, there may be overlapping areas in the coverage of network device 101 and network device 101 '. Network devices can also communicate with each other.
  • network device 101 can communicate with network device 101 '.
  • the network device is a node in a radio access network (radio access network, RAN), which may also be called a base station, and may also be called a RAN node (or device).
  • RAN radio access network
  • some examples of network equipment 101 are: general base station (general node B, gNB), new air interface base station (new radio node B, NR-NB), transmission and reception point (transmission reception point, TRP), evolved node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base controller), base station transceiver (BSC), base transceiver station (base transceiver station, BTS) , Home base station (eg, home evolved NodeB, HeNB; or home Node B, HNB), baseband unit (BBU), or wireless fidelity (Wifi) access point (AP), Or 5G communication system or network side equipment in future possible communication system, etc.
  • general base station general no
  • Terminal also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • the terminal includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • the terminal may be: a mobile phone, a smart phone, a tablet computer, a laptop computer, a palmtop computer, a mobile internet device (MID), a wearable device (such as a smart watch, a smart bracelet) , Pedometer, etc.), vehicle-mounted equipment (for example, cars, bicycles, electric vehicles, aircraft, ships, trains, high-speed rail, etc.), virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, industry Wireless terminals in industrial control, smart home devices (for example, refrigerators, TVs, air conditioners, electric meters, etc.), intelligent robots, workshop equipment, wireless terminals in self-driving, remote medical surgery ), Wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes , Flying equipment (for example, intelligent robots, hot air balloons, drones, airplanes), water meters, or electric meters.
  • vehicle-mounted equipment for example, cars, bicycles, electric vehicles, aircraft, ships, trains
  • the threshold in the embodiment of the present application is a cell selection parameter.
  • the threshold means the minimum received strength requirement of the reference signal received power (RSRP) in the cell
  • the threshold means the minimum received strength requirement of the reference signal received quality (RSRQ).
  • RSRP reference signal received power
  • RSSQ reference signal received quality
  • the RSRP value and / or RSRQ value of the cell is measured, and other parameters (for example, some compensation parameters) in the formula of the cell selection criterion (which may be referred to as S criterion) are obtained through system information.
  • S criterion which may be referred to as S criterion
  • An S value is obtained, and the S value is substituted into the S criterion formula for judgment to determine whether the cell meets the channel quality requirements of the cell selection.
  • the cell is selected as a camping cell or as a candidate camping cell.
  • the threshold of the camped cell under normal coverage and enhanced coverage is different.
  • the threshold under normal coverage is usually greater than the threshold under enhanced coverage.
  • the embodiments of the present application are described with a first threshold, a second threshold, and so on.
  • the embodiments of the present application are described using the first cell selection criterion, the second cell selection criterion, and so on.
  • enhanced coverage refers to coverage enhancement, which is the same in the sense of indication.
  • the mode in which the terminal works under normal coverage is called normal coverage mode, and the mode in which enhanced coverage works is called enhanced coverage mode.
  • the terminal In the normal coverage mode, the terminal usually monitors the physical downlink control channel (PDCCH) on the entire system bandwidth (that is, broadband) to receive paging messages or receive system messages.
  • the terminal In the enhanced coverage mode, the terminal usually monitors the MPDCCH (MTC PDCCH) on the narrowband.
  • the terminal working in the enhanced coverage mode can reduce the terminal power consumption and cost.
  • the terminal in the embodiment of the present application supports both working in the normal coverage mode and working in the enhanced coverage mode.
  • the enhanced coverage mode was originally aimed at MTC-type terminals.
  • bandwidth-reduced low-complexity terminals bandwidth-reduced low-complexity terminals
  • UE bandwidth-reduced low-complexity terminals
  • the terminal of the present application may be called a non-bandwidth reduced low complexity non-BL terminal.
  • the non-BL terminal supports both the normal coverage working mode and the enhanced coverage working mode.
  • the network device sends system information (system information) to the terminal, and the terminal receives the system information from the network device.
  • system information system information
  • the system information carries the first threshold.
  • the first threshold can be used for non-bandwidth reduced low-complexity non-BL terminals, or the first threshold can be used in any of the following modes: the first improved coverage enhancement mode (improved CE) mode, or CE improvement mode, or CE improvement mode, the first enhanced coverage enhancement mode (enhanced CE or mode enhancement), the first extreme coverage mode (extreme coverage mode) or the enhanced coverage mode (CE mode).
  • the first improved coverage enhancement mode improved CE
  • CE improvement mode or CE improvement mode
  • CE improvement mode the first enhanced coverage enhancement mode enhancement
  • the first extreme coverage mode extreme coverage mode
  • CE mode enhanced coverage mode
  • the first improved coverage enhancement mode, the first enhanced coverage enhancement mode, the first extreme coverage mode or the enhanced coverage mode refer to when the conventional terminal is in the traditional normal coverage range, and the terminal supporting the above mode is in the above-mentioned traditional terminal position, It meets the traditional normal coverage cell selection criterion, but does not satisfy the new normal coverage cell selection criterion based on the first threshold. At this time, the terminal supporting the above mode works in the enhanced coverage mode.
  • the above-mentioned conventional terminal includes a terminal that does not support the above mode.
  • both the terminal supporting the mode and the terminal not supporting the mode are non-BL terminals.
  • the first threshold can be used for non-bandwidth reduced low-complexity non-BL terminals, or the first threshold can be used in any of the following modes: the second improved coverage enhancement mode (improved CE mode, or CE improvement mode, or CE improvement mode, second enhanced coverage enhancement mode (enhanced CE or mode enhancement), second extreme coverage mode (extreme coverage mode) or enhanced coverage mode (CE mode).
  • the first threshold is used for the second improved coverage enhancement mode as an example.
  • the relevant description content can be replaced by any of the above modes or the first threshold is used for non-BL terminals, which are all in Within the scope of protection of this application.
  • the second improved coverage enhancement mode, the second enhanced coverage enhancement mode, the second extreme coverage mode, or the enhanced coverage mode refer to that the terminal works in the enhanced coverage mode under normal coverage.
  • the terminal may also report to the core network device the ability to support the above-mentioned mode, the capability including supporting enhanced coverage enhancement mode, or supporting improved coverage enhancement mode, or supporting extreme coverage mode.
  • the core network device can instruct the network device to page the terminal on the narrowband, for example, the core network device indicates the above capabilities of the terminal in a paging message sent to the network device.
  • the enhanced coverage enhancement mode includes the first enhanced coverage enhancement mode and the second enhanced coverage enhancement mode; the improved coverage enhancement mode includes the first improved coverage enhancement mode and the second improved coverage enhancement mode; extreme coverage
  • the modes include the above-mentioned first extreme coverage mode and second extreme coverage mode.
  • the terminal determines whether the cell selection criterion is satisfied according to the threshold included in the system information, and further determines the coverage range or coverage mode.
  • the system information carries a second threshold.
  • the first threshold is used to determine whether the first cell selection criterion is satisfied
  • the second threshold is used to determine whether the second cell selection criterion is satisfied. That is, the first threshold and the second threshold may determine two different cell coverage areas or two different cell coverage modes.
  • the terminal determines that the terminal is in normal coverage of the cell.
  • the first cell selection criterion is a decision criterion for normal coverage of the cell.
  • the terminal that determines whether the first cell selection criterion is satisfied according to the first threshold may be referred to as a first terminal.
  • the first terminal is a terminal supporting the above mode and / or the first terminal is a non-BL terminal.
  • the terminal works in the normal coverage mode under the normal coverage of the cell, for example, monitoring the PDCCH on the full bandwidth of the system.
  • the first terminal determines that the first terminal is not in normal coverage of the cell. Then, when the first terminal is not in the normal coverage of the cell, it can monitor the MPDCCH on the narrowband to reduce the power consumption of the terminal.
  • the second threshold is used by the traditional terminal to determine whether the cell selection criterion for normal coverage is satisfied.
  • Traditional terminals are distinguished from non-BL terminals with reduced bandwidth and low complexity.
  • the conventional terminal may be called a second terminal.
  • the second terminal does not support the above mode and / or the second terminal is a BL terminal.
  • the second threshold is used by the second terminal to determine whether the second cell selection criterion is satisfied. After receiving the system information, the second terminal can ignore the first threshold and still use the second threshold to determine whether the cell selection criterion for normal coverage is satisfied. It can be seen that the first terminal and the second terminal use different thresholds when determining whether they are in normal coverage, that is, determine different normal coverage ranges.
  • the second threshold is used by the terminal that does not support the mode described in the first optional implementation method to determine whether the second cell selection criterion is satisfied, and the first threshold is used to support the above-mentioned first optional implementation method.
  • the terminal in the mode described above determines whether the first cell selection criterion is satisfied.
  • the first terminal may ignore the second threshold.
  • the first threshold is greater than the second threshold, which is equivalent to raising the threshold in the cell selection criterion that originally judged normal coverage, then the range of normal coverage is reduced, and the first terminal only determines the first threshold based on the first threshold Only when the cell selection criterion is satisfied, the first terminal is considered to be under the normal coverage of the cell.
  • the power consumption of the terminal operating in the normal coverage mode is greater than that in the enhanced coverage mode. Therefore, by reducing the normal coverage range, the first terminal that is originally in the partial coverage range Use the enhanced coverage mode to reduce power consumption.
  • This application introduces a first threshold and retains the original second threshold, which does not affect whether the second terminal judges whether the cell selection criterion is satisfied, and thus does not affect the traditional terminal to select a cell for camping.
  • the terminal determines that the terminal is in the second improved coverage enhancement mode according to the first threshold.
  • the first threshold is used to determine whether the first cell selection criterion is satisfied
  • the second threshold is used to determine whether the second cell selection criterion is satisfied.
  • the terminal determines to be in the normal coverage mode.
  • the terminal determines to be in the second improved coverage enhancement mode.
  • the terminal will use the enhanced coverage mode to work, for example, to monitor the MPDCCH on a narrow band. In this way, the terminal originally used the enhanced coverage mode to work in a part of the normal coverage, thereby reducing power consumption and cost.
  • the terminal may work in a normal coverage mode, for example, monitoring the PDCCH on the full bandwidth of the system.
  • the second threshold is used by the conventional terminal to determine whether the cell selection criterion for normal coverage is satisfied.
  • Traditional terminals are distinguished from non-BL terminals with reduced bandwidth and low complexity.
  • the conventional terminal can ignore the first threshold and still use the second threshold to determine whether the cell selection criteria for normal coverage are satisfied. By retaining the original second threshold, it does not affect the traditional terminal to judge whether the cell selection criterion is satisfied, and thus does not affect the traditional terminal to select a cell for camping.
  • the second threshold may be used by a terminal that does not support the mode described in the second optional implementation method to determine whether the second cell selection criterion is met, and the first threshold may be The terminal for supporting the mode described in the second optional implementation method above determines whether the first cell selection criterion is satisfied.
  • the first threshold may be calculated through the second threshold and a threshold offset value.
  • the system information does not carry the first threshold, but carries the second threshold and the threshold offset value.
  • the two values of the threshold offset and the second threshold jointly determine whether the first cell selection criterion is satisfied.
  • the sum of the second threshold and the threshold offset value is equal to the first threshold.
  • the function and meaning of the threshold offset value can be described with reference to the first threshold.
  • the threshold offset value is used in any one of the following modes: the first improved coverage enhancement mode, the first enhanced coverage enhancement mode, the first extreme coverage mode, or the enhanced coverage mode.
  • the terminal when determining that the first cell selection criterion is satisfied, determines that the terminal is in normal coverage of the cell.
  • the terminal determines to be in the normal coverage mode.
  • the terminal determines that the terminal is in an improved coverage enhancement mode according to the threshold offset value and the second threshold.
  • the terminal determines to be in the normal coverage mode.
  • the terminal determines to be in an improved coverage enhancement mode.
  • the conventional terminal can ignore the threshold offset value and still use the second threshold to determine whether the cell selection criteria for normal coverage are satisfied.
  • the threshold offset value is introduced to enable the terminals that are originally in the normal coverage part to work in the enhanced coverage mode, thereby reducing terminal power consumption.
  • the enhanced coverage mode includes enhanced coverage mode A (CE mode A) and enhanced coverage mode B (CE mode B).
  • CE mode A enhanced coverage mode A
  • CE mode B enhanced coverage mode B
  • the threshold of CE mode A is greater than CE The threshold of mode B.
  • Both CE mode A and CE mode B work in enhanced coverage mode, such as working on narrowband.
  • these two enhanced coverage modes may also be retained.
  • the third threshold and the fourth threshold are carried in the system information. The third threshold is used to determine whether the third cell selection criterion is met, and the fourth threshold is used to determine whether the fourth cell selection criterion is met.
  • the terminal When the terminal does not satisfy the second cell selection criterion and the third cell selection criterion, it determines that it is in CE mode A. When the terminal does not satisfy the third cell selection criterion and the fourth cell selection criterion, it determines that it is in CE mode B.
  • the terminal When determining that the first cell selection criterion is satisfied according to the first threshold, the terminal determines that the terminal is in normal coverage of the cell. When the terminal does not satisfy the first cell selection criterion and the third cell selection criterion, it determines to be in CE mode A. When the terminal does not satisfy the third cell selection criterion and the fourth cell selection criterion, it determines that it is in CE mode B.
  • the meanings of CE mode A and CE mode B are the same as existing technologies.
  • the value of the first threshold is equal to the threshold of the existing CE mode A.
  • the terminal determines that the cell selection criterion is satisfied according to the first threshold, it is determined that the terminal is in the enhanced coverage mode. You can choose to work in the enhanced coverage mode, for example, to monitor the MPDCCH on a narrowband.
  • the system information may not carry the second threshold. Or, when carrying the second threshold in the system information, the terminal ignores the second threshold and uses only the first threshold to determine the working mode. In this case, the terminal may not use the second threshold to determine whether the second cell selection criterion is satisfied, that is, whether it is in the normal coverage mode, and determine that it is in Enhanced coverage mode.
  • the terminal may measure RSRP values and / or RSRQ values for multiple cells during cell selection, for example, measuring the RSRP value and / or RSRQ value of the first cell, and measuring the RSRP value and / or second cell Or RSRQ value.
  • the method described in the above method embodiment can be used to determine whether the cell selection criterion is met.
  • the terminal may use the measured RSRP value (and / or RSRQ value) of the two cells. Size to choose the residential area. For example, if the RSRP value of the second cell is greater than the RSRP value of the first cell, the terminal selects the second cell as the camping cell.
  • the range within the large circle of the outer circle is the normal coverage range of the cell in the conventional LTE system above, and the second threshold is used to determine whether the traditional normal coverage cell selection criterion, that is, the second cell selection criterion is met.
  • the range within the shaded small circle represents the normal coverage range determined by the non-BL terminal according to the first threshold in this application.
  • the ring zone area between the big circle and the small circle indicates that the terminal is in an improved coverage enhancement mode or outside the normal coverage range. In this area, the terminal can use the enhanced coverage working mode, for example, monitoring the MPDCCH on a narrow band.
  • the vertical striped area indicates that the terminal is in CE mode A
  • the third threshold is used to determine whether the cell selection criterion of CE mode A is met, namely The third cell selection criterion.
  • the shaded area of the square indicates that the terminal is in CE mode B.
  • the fourth threshold is used to determine whether the cell selection criterion of CE mode B is met, that is, the fourth cell selection criterion.
  • the first threshold in the above is a power value (in dBm)
  • it can be expressed by q-RxLevMinEnh or q-RxLevMinCE2
  • if it is a quality value (in dB) it can be expressed by q-QualMinEnh or q-QualMinCE2
  • the second threshold is a power value (in dBm)
  • it can be expressed by q-RxLevMin
  • if it is a quality value (in dB) it can be expressed by q-QualMin
  • the third threshold is a power value (in dBm)
  • It can be expressed by q-RxLevMinCE, if it is a quality value (in dB), it can be expressed by q-QualMinCE
  • the fourth threshold is a power value (in dBm)
  • it can be expressed by q-RxLevMinCE1 if Is the quality value (in dB), it can be expressed
  • the first threshold is a threshold offset value, for example, expressed by q-RxLevMinOffsetCE2 (or q-RxLevMinOffsetEnh) or q-QualMinOffsetCE2 (or q-QualMinOffsetEnh), then the first cell selection criterion is:
  • Q rxlevminoffset_CE2 q-RxLevMinOffsetCE2 [dB]
  • Q qualminoffset_CE2 q-QualMinOffsetCE2 [dB].
  • the present application also provides an apparatus 500 for applying a cell selection criterion.
  • the apparatus 500 for applying a cell selection criterion can be applied to the communication system shown in FIG. 1 to perform the above method The function of the terminal in the embodiment.
  • the apparatus 500 for applying a cell selection criterion may be applied to a terminal, or the apparatus 500 for applying a cell selection criterion is a terminal.
  • FIG. 5 shows only the main components of the terminal.
  • the device 500 for applying cell selection criteria includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and control the entire terminal, execute a software program, and process the data of the software program, for example, to support the terminal to perform the actions described in the above method embodiments, for example, from
  • the network device receives the system information, and determines that the terminal is in normal coverage of the cell when it is determined that the first cell selection criterion is satisfied according to the first threshold; or determines that the terminal is in the second improved coverage enhancement according to the first threshold Mode etc.
  • the memory is mainly used to store software programs and data, for example, store the thresholds in the above embodiments.
  • the control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • the control circuit and the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit processes the baseband signal after radio frequency processing, and then sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor.
  • the processor converts the baseband signal into data and processes the data.
  • FIG. 5 only shows one memory and one processor. In an actual terminal, there may be multiple processors and multiple memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.
  • the processor may include a baseband processor and / or a central processor.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processor is mainly used to control the entire terminal. Execute the software program and process the data of the software program.
  • the processor in FIG. 5 may integrate the functions of the baseband processor and the central processor.
  • the baseband processor and the central processor may also be independent processors, which are interconnected through technologies such as a bus.
  • the terminal may include multiple baseband processors to adapt to different network standards, the terminal may include multiple central processors to enhance its processing capability, and various components of the terminal may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processor may also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the antenna and the control circuit with the transceiver function can be regarded as the transceiver unit 501 of the application device 500 of the cell selection criterion, for example, for supporting the terminal to perform the receiving function and sending as described in the above method embodiments Features.
  • the processor with the processing function is regarded as the processing unit 502 of the application device 500 of the cell selection criterion.
  • the device 500 for applying cell selection criteria includes a transceiver unit 501 and a processing unit 502.
  • the transceiver unit may also be called a transceiver, a transceiver, a transceiver device, or the like.
  • the device used to implement the receiving function in the transceiver unit 501 can be regarded as a receiving unit
  • the device used to implement the sending function in the transceiver unit 501 can be regarded as a sending unit, that is, the transceiver unit 501 includes a receiving unit and a sending unit
  • the receiving unit may also be called a receiver, an input port, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • the processing unit 502 may be used to execute instructions stored in the memory to control the transceiver unit 501 to receive signals and / or send signals to complete the functions of the terminal in the foregoing method embodiments.
  • the function of the transceiver unit 501 may be implemented through a transceiver circuit or a dedicated chip for transceiver.
  • the present application further provides a device 600 for applying a cell selection criterion.
  • the device 600 for applying a cell selection criterion can be applied to the communication system shown in FIG. 1 to perform the above method
  • the apparatus 600 for applying the cell selection criterion may be a schematic structural diagram of a network device. As shown in FIG. 6, the network device can be applied to the system shown in FIG. 1 to perform the functions of the network device in the above method embodiments.
  • the device 600 for applying cell selection criteria may include one or more radio frequency units, such as a remote radio unit (RRU) 601 and one or more baseband units (baseband units) unit, BBU) (also called digital unit, digital unit, DU) 602.
  • the RRU 601 may be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc. It may include at least one antenna 6011 and a radio frequency unit 605.
  • the RRU 601 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals, for example, sending system information to the terminal.
  • the BBU 602 part is mainly used for baseband processing and controlling the base station.
  • the RRU 601 and BBU 602 may be physically set together, or may be physically separated, that is, distributed base stations.
  • the BBU 602 is the control center of the base station, and may also be called a processing unit, which is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum, and so on.
  • the BBU (processing unit) 602 may be used to control the network device to generate system information, and perform the operation flow on the network device in the above method embodiments.
  • the BBU 602 may be composed of one or more boards.
  • the multiple boards may jointly support a wireless access network (such as an LTE network) with a single access indication, or may support different access standards respectively.
  • Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 602 further includes a memory 6021 and a processor 6022.
  • the memory 6021 is used to store necessary instructions and data.
  • the memory 6021 stores the correspondence between the codebook index and the precoding matrix in the foregoing embodiment.
  • the processor 6022 is used to control the network device to perform necessary actions, for example, to control the network device to generate system information, and to perform the operation flow on the network device in the foregoing method embodiments.
  • the memory 6021 and the processor 6022 may serve one or more single boards. In other words, the memory and processor can be set separately on each board. It is also possible that multiple boards share the same memory and processor. In addition, each board can also be provided with necessary circuits.
  • the present application also provides a communication system, which includes one or more network devices and one or more terminals.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an existing programmable gate array (FPGA) or other available Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA existing programmable gate array
  • Programming logic devices discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the software module may be located in a mature storage medium in the art, such as a random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and register.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electronically Erase programmable EPROM (EEPROM) or flash memory.
  • the volatile memory may be a random access memory (random access memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate synchronous dynamic random access memory double data SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • serial link DRAM SLDRAM
  • direct RAMbus RAM direct RAMbus RAM
  • An embodiment of the present application further provides a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, the method described in the foregoing method embodiments is implemented.
  • An embodiment of the present application also provides a computer program product that implements the method described in the foregoing method embodiment when the computer program product is executed by a computer.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)) etc.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a high-density digital video disc (Digital Video Disc, DVD)
  • a semiconductor medium for example, a solid state disk (Solid State Disk, SSD)
  • An embodiment of the present application further provides a processing device, including a processor and an interface; the processor is configured to execute the method described in any of the foregoing method embodiments.
  • the above processing device may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc .; when implemented by software At this time, the processor may be a general-purpose processor, implemented by reading software codes stored in a memory, and the memory may be integrated in the processor, may be located outside the processor, and exist independently.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • computer usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, the instructions The device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps are performed on the computer or other programmable device to produce computer-implemented processing, which is executed on the computer or other programmable device
  • the instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.

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Abstract

一种小区选择准则的应用方法及装置，用以降低支持增强覆盖的非带宽减少低复杂度non-BL终端的功耗。该方法为：终端从网络设备接收***信息，所述***信息包括第一门限，所述第一门限用于改善的覆盖增强模式；所述终端根据所述第一门限在确定第一小区选择准则满足时，确定所述终端处于小区的正常覆盖。

Description

一种小区选择准则的应用方法及装置 技术领域
本申请涉及通信技术领域，特别涉及一种小区选择准则的应用方法及装置。
背景技术
对类似于长期演进(long term evolution，LTE)机器类型通信(machine type communication，MTC)和窄带物联网(narrow band internet of thing，NB-IoT)等一些通信场景，其不追求数据传输速率、多频段、多天线、全双工传输，而是追求较长的终端装置电池使用时间，较低廉的终端装置成本，即要求终端能够实现低功耗(low power consumption)、低成本(low cost)、低复杂度(low complexity)。此外，考虑到MTC类型的终端的部署环境，其信号覆盖强度可能无法满足信号接收要求，因此对MTC进行增强，使基站和终端能够支持增强覆盖(coverage enhancement，CE)。目前，实现增强覆盖的主要方法是重复多次发送上行或下行信号，通过多次接收合并实现提高数据接收成功率的目的。
现有技术中，MTC工作在窄带上(narrowband)，这样有利于降低MTC类型的终端的工作带宽，进而降低MTC类型的终端的功耗，从而实现低功耗和低成本的要求。一般情况下，将工作在窄带的具有低成本的MTC类型的终端归为一类终端，如称为带宽减少低复杂度(bandwidth reduced and low complexity，BL)终端，这类终端例如为水表、电表等；相对于BL终端而言，支持工作在宽带的普通终端归为一类终端，如称为非带宽减少低复杂度non-BL终端，non-BL终端例如为手机。普通终端也能够支持增强覆盖，相对于增强覆盖(enhanced coverage)，原来的LTE覆盖可称为正常覆盖(normal coverage)。支持增强覆盖的non-BL终端在正常覆盖下工作在正常覆盖的模式，在增强覆盖下工作在增强覆盖的模式(CE mode)。
然而，支持增强覆盖的non-BL终端在正常覆盖的模式下工作，功耗和成本消耗较大。
发明内容
本申请提供一种小区选择准则的应用方法及装置，用以降低支持增强覆盖的non-BL终端在正常覆盖的模式下工作的功耗和成本。
第一方面，提供一种小区选择准则的应用方法，该方法的执行主体可以是终端，该方法具体通过以下步骤实现：终端从网络设备接收***信息，所述***信息包括第一门限，所述第一门限用于改善的覆盖增强模式，所述终端根据所述第一门限在确定第一小区选择准则满足时，确定所述终端处于小区的正常覆盖。通过引入新的门限，在不影响原有传统终端选择驻留小区的基础上，能够使得支持覆盖增强的non-BL终端按照新的门限来确定正常覆盖，在一定程度上，可能实现在原有正常覆盖的部分区域在窄带上工作，从而降低终端功耗和成本。
在一个可能的设计中，所述第一门限用于改善的覆盖增强模式，可以替换为其它说法。例如，第一门限用于增强的覆盖增强模式(enhanced CE mode或CE mode enhancement)， 或者，第一门限用于极端覆盖模式(extreme coverage mode)或者增强覆盖模式(CE mode)。或者，可选地，第一门限用于非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，改善的覆盖增强模式、增强的覆盖增强模式、极端覆盖模式或者增强覆盖模式是指，传统终端在传统的正常覆盖范围而支持上述模式的终端在上述传统终端位置时，满足传统的正常覆盖的小区选择准则，但不满足基于第一门限的新的正常覆盖的小区选择准则，此时支持上述模式的终端使用增强覆盖模式工作。
在一个可能的设计中，终端为非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，所述***信息还包括第二门限，所述第二门限用于确定第二小区选择准则是否满足，所述终端忽略所述第二门限。具体的，若所述终端为第一类型终端，第二门限可以用于第二类型终端判断正常覆盖的小区选择准则是否满足，即，第二类型终端在确定第二小区选择准则满足时，确定处于小区的正常覆盖。例如，第二类型终端为不同于第一类型终端的传统终端，这样当传统终端接收到***信息后，可以忽略第一门限，仍旧使用第二门限来判断正常覆盖的小区选择准则是否满足。从而不影响传统终端选择小区进行驻留。
在一个可能的设计中，第一门限大于第二门限，相当于将原来判断正常覆盖的小区选择准则中的门限值提高，那么正常覆盖的范围缩小，终端只有在根据第一门限确定第一小区选择准则满足时，才认为处于小区的正常覆盖下。所述终端在根据所述第一门限确定所述第一小区选择准则不满足时，选择使用增强覆盖模式进行工作。由于终端在正常覆盖的模式下工作比在增强覆盖的模式下工作的功耗消耗要大，因此，通过将正常覆盖的范围缩小，使得在原来在正常覆盖的部分范围内的终端使用增强覆盖的模式工作。
在一个可能的设计中，所述第一门限为门限偏移值。
在一个可能的设计中，当终端在第一小区满足第一小区选择准则，第二小区满足第二小区选择准则且不满足第一小区选择准则时，终端可以根据两个小区测量的RSRP值(和/或RSRQ值)的大小来选择驻留小区。
第二方面，提供一种小区选择准则的应用方法，该方法的执行主体可以是终端，该方法具体通过以下步骤实现：终端从网络设备接收***信息，所述***信息包括第一门限，所述第一门限用于改善的覆盖增强模式；所述终端根据所述第一门限确定所述终端处于改善的覆盖增强模式。通过引入新的门限，在不影响原有传统终端选择驻留小区的基础上，能够使得支持覆盖增强的non-BL终端按照新的门限来确定正常覆盖，在一定程度上，可能实现在原有正常覆盖的部分区域在窄带上工作，从而降低终端功耗和成本。
在一个可能的设计中，所述第一门限用于改善的覆盖增强模式，可以替换为其它说法。例如，第一门限用于增强的覆盖增强模式(enhanced CE mode或CE mode enhancement)，或者，门限用于极端覆盖模式(extreme coverage mode)或者增强覆盖模式(CE mode)。或者，可选地，第一门限用于非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，终端为非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，改善的覆盖增强模式、增强的覆盖增强模式、极端覆盖模式或者增强覆盖模式是指，终端在正常覆盖范围下使用增强覆盖模式工作。
在一个可能的设计中，所述第一门限用于判断第一小区选择准则是否满足；所述***信息还包括第二门限，所述第二门限用于判断第二小区选择准则是否满足。
在一个可能的设计中，第二门限用于传统LTE终端确定正常覆盖的小区选择准则是否 满足。即，传统LTE终端在确定第二小区选择准则满足时，确定处于小区的正常覆盖。这样当传统终端接收到***信息后，可以忽略第一门限，仍旧使用第二门限来判断正常覆盖的小区选择准则是否满足。从而不影响传统终端选择小区进行驻留。
在一个可能的设计中，终端在确定所述第一小区选择准则不满足且所述第二小区选择准则满足时，确定所述终端处于所述改善的覆盖增强模式。当终端处于改善的覆盖增强模式时，虽然是在正常覆盖范围下，但终端会采用增强覆盖模式进行工作，例如在窄带上监听MPDCCH。这样，使得终端在原来正常覆盖的部分范围内使用增强覆盖的模式工作，从而降低了功耗和成本。
在一个可能的设计中，第一门限大于第二门限。
在一个可能的设计中，所述第一门限为门限偏移值。
在一个可能的设计中，当终端在第一小区满足第一小区选择准则，第二小区满足第二小区选择准则且不满足第一小区选择准则时，终端可以根据两个小区测量的RSRP值(和/或RSRQ值)的大小来选择驻留小区。
在一个可能的设计中，第一门限的值等同于现有CE mode A的门限。终端根据第一门限确定小区选择准则满足时，确定终端处于增强覆盖模式。
第三方面，提供一种小区选择准则的应用方法，该方法的执行主体可以是终端，该方法具体通过以下步骤实现：终端从网络设备接收***信息，所述***信息包括门限值和门限偏移值，所述门限偏移值用于改善的覆盖增强模式；所述终端根据所述门限值和门限偏移值，确定所述终端处于小区的正常覆盖。通过引入门限偏移值，在不影响原有传统终端选择驻留小区的基础上，能够使得支持覆盖增强的non-BL终端按照新的门限来确定正常覆盖，在一定程度上，可能实现在原有正常覆盖的部分区域在窄带上工作，从而降低终端功耗和成本。
在一个可能的设计中，所述门限偏移值用于改善的覆盖增强模式，可以替换为其它说法。例如，所述门限偏移值用于增强的覆盖增强模式(enhanced CE mode或CE mode enhancement)，或者，所述门限偏移值用于第一极端覆盖模式(extreme coverage mode)或者增强覆盖模式(CE mode)。或者，可选地，所述偏移值用于非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，改善的覆盖增强模式、增强的覆盖增强模式、极端覆盖模式或者增强覆盖模式是指，传统终端在传统的正常覆盖范围而支持上述模式的终端在上述传统终端位置时，满足传统的正常覆盖的小区选择准则，但不满足基于第一门限的新的正常覆盖的小区选择准则，此时支持上述模式的终端使用增强覆盖模式工作。
在一个可能的设计中，终端为非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，由所述门限偏移值和所述门限值确定的一个值用于判断第一小区选择准则是否满足；所述门限值用于判断第二小区选择准则是否满足。
在一个可能的设计中，所述***信息还包括第二门限。具体的，若所述终端为第一类型终端，第二门限可以用于第二类型终端判断正常覆盖的小区选择准则是否满足，即，第二类型终端在确定第二小区选择准则满足时，确定处于小区的正常覆盖。例如，第二类型终端为不同于第一类型终端的传统终端，这样当传统终端接收到***信息后，可以忽略第一门限，仍旧使用第二门限来判断正常覆盖的小区选择准则是否满足。从而不影响传统终端选择小区进行驻留。
在一个可能的设计中，所述门限偏移值大于0。由所述门限偏移值和所述门限值确定的一个值为所述门限偏移值和所述门限值之和。相当于将原来判断正常覆盖的小区选择准则中的门限值提高，那么正常覆盖的范围缩小，终端只有在根据所述门限偏移值和所述门限值确定的一个值确定第一小区选择准则满足时，才认为处于小区的正常覆盖下。所述终端在确定所述第一小区选择准则不满足时，选择使用增强覆盖模式进行工作。由于终端在正常覆盖的模式下工作比在增强覆盖的模式下工作的功耗消耗要大，因此，通过将正常覆盖的范围缩小，使得在原来在正常覆盖的部分范围内的终端使用增强覆盖的模式工作。
在一个可能的设计中，当终端在第一小区满足第一小区选择准则，第二小区满足第二小区选择准则且不满足第一小区选择准则时，终端可以根据两个小区测量的RSRP值(和/或RSRQ值)的大小来选择驻留小区。
第四方面，提供一种小区选择准则的应用方法，该方法的执行主体可以是终端，该方法具体通过以下步骤实现：终端从网络设备接收***信息，所述***信息包括门限值和门限偏移值，所述门限偏移值用于改善的覆盖增强模式；所述终端根据所述门限值和门限偏移值，确定所述终端处于改善的覆盖增强模式。通过引入门限偏移值，在不影响原有传统终端选择驻留小区的基础上，能够使得支持覆盖增强的non-BL终端按照新的门限来确定正常覆盖，在一定程度上，可能实现在原有正常覆盖的部分区域在窄带上工作，从而降低终端功耗和成本。
在一个可能的设计中，所述门限偏移值用于改善的覆盖增强模式，可以替换为其它说法。例如，所述门限偏移值用于增强的覆盖增强模式(enhanced CE mode或CE mode enhancement)，或者，所述门限偏移值用于第一极端覆盖模式(extreme coverage mode)或者增强覆盖模式(CE mode)。或者，可选地，所述偏移值用于非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，改善的覆盖增强模式、增强的覆盖增强模式、极端覆盖模式或者增强覆盖模式是指，终端在正常覆盖范围下使用增强覆盖模式工作。
在一个可能的设计中，终端为非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，由所述门限偏移值和所述门限值确定的一个值用于判断第一小区选择准则是否满足；所述门限值用于判断第二小区选择准则是否满足。
在一个可能的设计中，所述门限值用于传统LTE终端确定正常覆盖的小区选择准则是否满足。即，传统LTE终端在确定第二小区选择准则满足时，确定处于小区的正常覆盖。这样当传统终端接收到***信息后，可以忽略门限偏移值，仍旧使用所述门限值来判断正常覆盖的小区选择准则是否满足。从而不影响传统终端选择小区进行驻留。
在一个可能的设计中，终端在确定所述第一小区选择准则不满足且所述第二小区选择准则满足时，确定所述终端处于所述第二改善的覆盖增强模式。当终端处于改善的覆盖增强模式时，虽然是在正常覆盖范围下，但终端会采用增强覆盖模式进行工作，例如在窄带上监听MPDCCH。这样，使得终端在原来正常覆盖的部分范围内使用增强覆盖的模式工作，从而降低了功耗和成本。
在一个可能的设计中，第一门限大于第二门限。
在一个可能的设计中，当终端在第一小区满足第一小区选择准则，第二小区满足第二小区选择准则且不满足第一小区选择准则时，终端可以根据两个小区测量的RSRP值(和/或RSRQ值)的大小来选择驻留小区。
在一个可能的设计中，第一门限的值等同于现有CE mode A的门限。终端根据第一门限确定小区选择准则满足时，确定终端处于增强覆盖模式。
第五方面，提供一种小区选择准则的应用方法，该方法的执行主体可以是网络设备，该方法具体通过以下步骤实现：网络设备生成***信息，所述***信息包括第一门限，所述第一门限用于改善的覆盖增强模式；所述网络设备向终端发送所述***信息。通过引入门限偏移值，在不影响原有传统终端选择驻留小区的基础上，能够使得支持覆盖增强的non-BL终端按照新的门限来确定正常覆盖，在一定程度上，可能实现在原有正常覆盖的部分区域在窄带上工作，从而降低终端功耗和成本。
在一个可能的设计中，所述***信息还包括第二门限，所述第一门限用于判断第一小区选择准则是否满足，所述第二门限用于判断第二小区选择准则是否满足。
在一个可能的设计中，所述第一门限用于改善的覆盖增强模式，可以替换为其它说法。例如，第一门限用于增强的覆盖增强模式(enhanced CE mode或CE mode enhancement)，或者，门限用于极端覆盖模式(extreme coverage mode)或者增强覆盖模式(CE mode)。或者，可选地，第一门限用于非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，改善的覆盖增强模式、增强的覆盖增强模式、极端覆盖模式或者增强覆盖模式是指，终端在正常覆盖范围下使用增强覆盖模式工作。
第六方面，提供一种小区选择准则的应用方法，该方法的执行主体可以是网络设备，该方法具体通过以下步骤实现：网络设备生成***信息，所述***信息包括第一门限和第二门限，第一门限用于第一类型的终端确定正常覆盖的第一小区选择准则是否满足，第二门限用于第二类型的终端确定正常覆盖的第二小区选择准则是否满足。网络设备向终端发送所述***信息。通过引入新的门限，在不影响原有传统终端选择驻留小区的基础上，能够使得支持覆盖增强的non-BL终端按照新的门限来确定正常覆盖，在一定程度上，可能实现在原有正常覆盖的部分区域在窄带上工作，从而降低终端功耗和成本。
在一个可能的设计中，所述第一门限用于改善的覆盖增强模式，或者，第一门限用于增强的覆盖增强模式(enhanced CE mode或CE mode enhancement)，或者，第一门限用于极端覆盖模式(extreme coverage mode)或者增强覆盖模式(CE mode)。或者，可选地，第一门限用于非带宽减少低复杂度non-BL的终端。
在一个可能的设计中，改善的覆盖增强模式、增强的覆盖增强模式、极端覆盖模式或者增强覆盖模式是指，传统终端在传统的正常覆盖范围而支持上述模式的终端在上述传统终端位置时，满足传统的正常覆盖的小区选择准则，但不满足基于第一门限的新的正常覆盖的小区选择准则，此时支持上述模式的终端使用增强覆盖模式工作。
在一个可能的设计中，终端为非带宽减少低复杂度non-BL的终端。
第七方面，提供一种小区选择准则的应用装置，该装置应用于终端或该装置为一种终端，该装置具有实现上述第一至第四方面和第一至第四方面中任一种可能的设计中方法的功能，其包括用于执行上述第一至第四方面和第一至第四方面中任一种可能的设计中方法所描述的步骤或功能相对应的部件(means)。所述步骤或功能可以通过软件实现，或硬件(如电路)实现，或者通过硬件和软件结合来实现。
在一种可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述小区选择准则的应用装置执行上述方法中的功能。例如，从网络设备接收***信息，以及根据所述第一门限确定所述终端处于改善的覆盖增强模式。所述 通信单元用于支持所述小区选择准则的应用装置与其他设备通信，实现接收和/或发送功能。例如，从网络设备接收***信息。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存装置必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。
另一个可能的设计中，上述资源映射的装置，包括收发器、处理器和存储器。该处理器用于控制收发器或输入/输出电路收发信号，该存储器用于存储计算机程序，该处理器用于运行该存储器中的计算机程序，使得该装置执行上述第一至第四方面和第一至第四方面中任一种可能的设计中方法。
第八方面，提供一种小区选择准则的应用装置，该装置应用于网络设备或该装置为一种网络设备，该装置具有实现上述第五方面、第六方面、第五方面中任一种可能的设计和第六方面中任一种可能的设计中方法的功能，其包括用于执行上述方面所描述的步骤或功能相对应的部件(means)。所述步骤或功能可以通过软件实现，或硬件(如电路)实现，或者通过硬件和软件结合来实现。
在一种可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述小区选择准则的应用装置执行上述方法中的功能。例如，生成***信息。所述通信单元用于支持所述小区选择准则的应用装置与其他设备通信，实现接收和/或发送功能。例如，向终端发送所述***信息。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存装置必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。
另一个可能的设计中，上述指示资源映射的装置，包括收发器、处理器和存储器。该处理器用于控制收发器或输入/输出电路收发信号，该存储器用于存储计算机程序，该处理器用于运行该存储器中的计算机程序，使得该指示资源映射的装置执行上述第五方面、第六方面、第五方面中任一种可能的设计和第六方面中任一种可能的设计中方法。
第九方面，提供了一种***，该***包括上述第七方面和第八方面提供的装置。
第十方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序包括用于执行上述各方面或各方面中任一种可能的设计中方法的指令。
第十一方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述各方面或各方面中任一种可能的设计中的方法。
附图说明
图1为本申请实施例中一种适用的通信***架构示意图；
图2为本申请实施例中小区选择准则的应用方法流程示意图；
图3为本申请实施例中覆盖范围或覆盖模式的关系示意图之一；
图4为本申请实施例中覆盖范围或覆盖模式的关系示意图之二；
图5为本申请实施例中小区选择准则的应用装置结构示意图之一；
图6为本申请实施例中小区选择准则的应用装置结构示意图之二。
具体实施方式
本申请实施例提供一种小区选择准则的应用方法及装置，用以实现终端在正常覆盖下使用增强覆盖模式工作，从而降低终端功耗。
本申请实施例提供的方法可以应用于***(4th generation，4G)通信***、第五代(5th generation，5G)通信***或未来的各种通信***。具体的，可以应用于MTC的通信场景，也可以应用于NB-IoT的通信场景。
下面将结合附图，对本申请实施例进行详细描述。
首先给出本申请提供的方法适用的一种可能的通信***的架构。如图2所示，通信***100中包括：网络设备101和一个或多个终端102。当通信***100包括核心网时，网络设备101还可以与核心网相连。网络设备101可以通过核心网与IP网络103进行通信。IP网络103可以是：因特网(internet)，私有的IP网，或其它数据网等。网络设备101为覆盖范围内的终端102提供服务。例如，参见图1所示，网络设备101为网络设备101覆盖范围内的一个或多个终端102提供无线接入。通信***100中可以包括多个网络设备，还可以包括网络设备101’。网络设备之间的覆盖范围可以存在重叠的区域，例如网络设备101和网络设备101’的覆盖范围存在重叠的区域。网络设备之间还可以互相通信，例如，网络设备101可以与网络设备101’之间进行通信。
下面对网络设备和终端的概念作一些解释说明。
网络设备为无线接入网(radio access network，RAN)中的节点，又可以称为基站，还可以称为RAN节点(或设备)。目前，一些网络设备101的举例为：通用型基站(general node B，gNB)、新空口基站(new radio node B，NR-NB)、传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，HeNB；或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(wireless fidelity，Wifi)接入点(access point，AP)，或5G通信***或者未来可能的通信***中的网络侧设备等。
终端，又称之为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，也可以是物联网设备。例如，终端包括具有无线连接功能的手持式设备、车载设备等。目前，终端可以是：手机(mobile phone)、智能手机(smart phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备(例如智能手表、智 能手环、计步器等)，车载设备(例如，汽车、自行车、电动车、飞机、船舶、火车、高铁等)、虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、智能家居设备(例如，冰箱、电视、空调、电表等)、智能机器人、车间设备、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端，或智慧家庭(smart home)中的无线终端、飞行设备(例如，智能机器人、热气球、无人机、飞机)、水表、或电表等。
下面对本申请实施例提供的小区选择准则的应用方法进行具体介绍。以下介绍中，“第一”、“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本申请实施例中的门限为一种小区选择参数。例如，门限的含义为小区中参考信号接收功率(reference signal received power，RSRP)的最小接收强度要求，又例如，门限的含义为参考信号接收质量(reference signal received quality，RSRQ)的最小接收强度要求。实际应用中，终端在进行小区选择时，测量得到小区的RSRP值和/或RSRQ值，通过***信息获取小区选择准则(可称为S准则)公式中其它参数(例如，一些补偿参数)，计算得到一个S值，将S值代入S准则公式进行判断，判断小区是否满足小区选择的信道质量要求。在满足小区选择的信道质量要求时，也可以说满足小区选择准则时，选择该小区作为驻留小区或者作为候选的驻留小区。驻留小区在正常覆盖和增强覆盖下的门限是不一样的。正常覆盖下的门限通常要大于增强覆盖下的门限。当涉及多个不同的门限时，为作区分，本申请实施例用第一门限、第二门限等来描述。类似的，当涉及多个不同的小区选择准则时，为作区分，本申请实施例用第一小区选择准则、第二小区选择准则等来描述。整篇描述中，增强覆盖即指覆盖增强，在指示的意义上是相同的。
终端在正常覆盖下工作的模式称为正常覆盖模式，在增强覆盖下工作的模式称为增强覆盖模式。终端在正常覆盖模式下，通常会在整个***带宽(即宽带)上监听物理下行控制信道(physical downlink control channel，PDCCH)，来接收寻呼(paging)消息或接收***消息。终端在增强覆盖模式下，通常会在窄带上监听MPDCCH(MTC PDCCH)。显然，终端在增强覆盖模式下工作能够降低终端功耗和成本。本申请实施例中的终端既支持在正常覆盖模式下工作，也支持在增强覆盖模式下工作。增强覆盖模式最初是针对MTC类型终端来说的，一般将工作在窄带上且具有低成本、低复杂度的MTC类型终端称为带宽减少低复杂度终端(bandwidth reduced and low complexity UE，BL UE)。相对于BL UE来说，本申请的终端可以称为非带宽减少低复杂度non-BL的终端，non-BL的终端既支持正常覆盖工作模式，也支持增强覆盖的工作模式。
如图2所示，本申请实施例提供的小区选择准则的应用方法的具体流程如下所述。
S201、网络设备向终端发送***信息(system information)，终端从网络设备接收***信息。
***信息中携带第一门限。
第一可选的实施方法中，第一门限可用于非带宽减少低复杂度non-BL的终端，或者， 第一门限可以用于以下任意一种模式：第一改善的覆盖增强模式(improved CE mode，或者CE improvement mode，或者CE mode improvement)、第一增强的覆盖增强模式(enhanced CE mode或CE mode enhancement)、第一极端覆盖模式(extreme coverage mode)或者增强覆盖模式(CE mode)。以下描述中以第一门限用于第一改善的覆盖增强模式为例进行介绍，相关描述内容可以替换为上述任一种模式或替换为上述第一门限用于non-BL的终端，其均在本申请的保护范围内。
第一改善的覆盖增强模式、第一增强的覆盖增强模式、第一极端覆盖模式或者增强覆盖模式是指，传统终端在传统的正常覆盖范围，而支持上述模式的终端在上述传统终端位置时，满足传统的正常覆盖的小区选择准则，但不满足基于第一门限的新的正常覆盖的小区选择准则，此时支持上述模式的终端使用增强覆盖模式工作。可选地，上述传统终端包含不支持上述模式的终端。可选地，上述支持所述模式的终端和不支持所述模式的终端都为non-BL的终端。
第二可选的实施方法中，第一门限可以用于非带宽减少低复杂度non-BL的终端，或者，第一门限可以用于以下任意一种模式：第二改善的覆盖增强模式(improved CE mode，或者CE improvement mode，或者CE mode improvement)、第二增强的覆盖增强模式(enhanced CE mode或CE mode enhancement)、第二极端覆盖模式(extreme coverage mode)或者增强覆盖模式(CE mode)。以下描述中以第一门限用于第二改善的覆盖增强模式为例进行介绍，相关描述内容可以替换为上述任一种模式或替换为上述第一门限用于non-BL的终端，其均在本申请的保护范围内。
第二改善的覆盖增强模式、第二增强的覆盖增强模式、第二极端覆盖模式或者增强覆盖模式是指，终端在正常覆盖范围下使用增强覆盖模式工作。
可选的，在执行S201之前，终端还可以向核心网设备上报支持上述模式的能力，该能力包括支持增强的覆盖增强模式，或者支持改善的覆盖增强模式，或者支持极端覆盖模式。这样，核心网设备就可以向网络设备指示在窄带上寻呼终端，例如核心网设备在向网络设备发送的寻呼消息中指示终端的上述能力。其中，增强的覆盖增强模式包括上述第一增强的覆盖增强模式和第二增强的覆盖增强模式；改善的覆盖增强模式包括上述第一改善的覆盖增强模式和第二改善的覆盖增强模式；极端覆盖模式包括上述第一极端覆盖模式和第二极端覆盖模式。
S202、终端根据***信息中包括的门限，确定小区选择准则是否满足，并进一步确定覆盖范围或覆盖模式。
可选地，***信息携带第二门限，第一门限用于确定第一小区选择准则是否满足，第二门限用于确定第二小区选择准则是否满足。也就是，第一门限和第二门限可以确定两种不同的小区覆盖范围，或两种不同的小区覆盖模式。
在上述第一可选的实施方法的基础上，以下介绍S202的第一种可选的实现方式：
终端根据第一门限在确定第一小区选择准则满足时，确定终端处于小区的正常覆盖。可选地，第一小区选择准则为小区的正常覆盖的判决准则。可选地，上述根据第一门限确定第一小区选择准则是否满足的终端可以称为第一终端。可选地，第一终端为支持上述模式的终端和/或第一终端为non-BL的终端。
可选地，终端在小区的正常覆盖下使用正常覆盖模式工作，例如在***全带宽上监听PDCCH。第一终端在根据第一门限确定第一小区选择准则不满足时，确定第一终端不处于 小区的正常覆盖。那么，第一终端在不处于小区的正常覆盖时，可以在窄带上监听MPDCCH，以降低终端的功耗。
可选地，第二门限用于传统终端判断正常覆盖的小区选择准则是否满足。传统终端区别于非带宽减少低复杂度non-BL的终端。传统终端可以称为第二终端。第二终端不支持上述模式和/或第二终端为BL的终端。第二门限用于第二终端判断第二小区选择准则是否满足。当第二终端接收到***信息后，可以忽略第一门限，仍旧使用第二门限来判断正常覆盖的小区选择准则是否满足。由此可知，第一终端和第二终端在判断是否处于正常覆盖时，使用了不同的门限，即确定不同的正常覆盖范围。
可选地，第二门限用于不支持上述第一可选的实施方法所述的模式的终端判断正第二小区选择准则是否满足，第一门限用于支持上述第一可选的实施方法所述的模式的终端判断第一小区选择准则是否满足。
可选地，第一终端在接收到***信息后，可以忽略第二门限。可选地，若第一门限大于第二门限，相当于将原来判断正常覆盖的小区选择准则中的门限值提高，那么正常覆盖的范围缩小，第一终端只有在根据第一门限确定第一小区选择准则满足时，才认为第一终端处于小区的正常覆盖下。上文中描述，终端在正常覆盖的模式下工作比在增强覆盖的模式下工作的功耗消耗要大，因此，通过将正常覆盖的范围缩小，使得原来在正常覆盖的部分范围内的第一终端使用增强覆盖的模式工作，从而实现降低功耗之目的。
本申请引入第一门限，并保留原来的第二门限，不影响第二终端判断小区选择准则是否满足，从而不影响传统终端选择小区进行驻留。
在上述第二可选的实施方法的基础上，以下介绍S202的第二种可选的实现方式：
终端根据第一门限确定终端处于第二改善的覆盖增强模式。
具体地，第一门限用于确定第一小区选择准则是否满足，第二门限用于确定第二小区选择准则是否满足。终端在第二小区选择准则满足时，确定处于正常覆盖模式。终端在第一小区选择准则不满足、且第二小区选择准则满足时，确定处于第二改善的覆盖增强模式。当终端处于第二改善的覆盖增强模式时，虽然是在正常覆盖范围下，但终端会采用增强覆盖模式进行工作，例如在窄带上监听MPDCCH。这样，使得终端原来在正常覆盖的部分范围内使用增强覆盖的模式工作，从而降低了功耗和成本。
可选地，终端在第一小区选择准则满足时，可以采用正常覆盖模式进行工作，例如在***全带宽上监听PDCCH。
可选地，在第二种可选的实现方式中，第二门限用于传统终端判断正常覆盖的小区选择准则是否满足。传统终端区别于非带宽减少低复杂度non-BL的终端。当传统终端接收到***信息后，可以忽略第一门限，仍旧使用第二门限来判断正常覆盖的小区选择准则是否满足。通过保留原来的第二门限，不影响传统终端判断小区选择准则是否满足，从而不影响传统终端选择小区进行驻留。
可选地，在第二种可选的实现方式中，第二门限可以用于不支持上述第二可选的实施方法所述的模式的终端判断第二小区选择准则是否满足，第一门限可以用于支持上述第二可选的实施方法所述的模式的终端判断第一小区选择准则是否满足。
基于上述实施例的描述，可选地，第一门限可以通过第二门限和一个门限偏移值来计算获得。基于这个思想，在上述小区选择准则的应用方法中，***信息中不携带第一门限，而是携带第二门限和门限偏移值。
在这种情况下，门限偏移值和第二门限两个值共同确定第一小区选择准则是否满足。可选地，第二门限与门限偏移值的和值等于上述第一门限值。
门限偏移值的功能和含义可以参照第一门限所述。门限偏移值用于以下任意一种模式：第一改善的覆盖增强模式、第一增强的覆盖增强模式、第一极端覆盖模式或者增强覆盖模式。
参照上述第一种可选的实现方式，终端根据门限偏移值和第二门限，在确定第一小区选择准则满足时，确定终端处于小区的正常覆盖。可选地，终端根据第二门限和门限偏移值确定第一小区选择准则满足时，确定处于正常覆盖模式。
参照上述第二种可选的实现方式，终端根据门限偏移值和第二门限，确定终端处于改善的覆盖增强模式。可选地，终端根据第二门限确定第二小区选择准则满足时，确定处于正常覆盖模式。终端根据第二门限和门限偏移值在确定第一小区选择准则不满足、且根据第二门限在确定第二小区选择准则满足时，确定处于改善的覆盖增强模式。
同样，由于保留了第二门限，当传统终端接收到***信息后，可以忽略门限偏移值，仍旧使用第二门限来判断正常覆盖的小区选择准则是否满足。通过保留原来的第二门限，不影响传统终端判断小区选择准则是否满足，从而不影响传统终端选择小区进行驻留。而对于non-BL终端或支持上述模式的终端，通过引入门限偏移值，使得原本在正常覆盖的部分范围内的终端使用增强覆盖的模式工作，从而降低终端功耗。
现有技术中，针对BL UE或支持CE的UE，增强覆盖模式包括增强覆盖模式A(CE mode A)和增强覆盖模式B(CE mode B)，一般情况下，CE mode A的门限要大于CE mode B的门限。CE mode A和CE mode B均采用增强覆盖模式进行工作，例如在窄带上工作。本申请实施例上述第一种可选的实现方式和第二种可选的实现方式中，还可以保留这两种增强覆盖模式。例如，在***信息中携带第三门限和第四门限，第三门限用于判断是否满足第三小区选择准则，第四门限用于判断是否满足第四小区选择准则。
终端在不满足第二小区选择准则且满足第三小区选择准则时，确定处于CE mode A。终端在不满足第三小区选择准则且满足第四小区选择准则时，确定处于CE mode B。
在上述第一可选的实施方法的基础上，下面介绍一下S202的第三种可选的实现方式：
终端根据第一门限在确定第一小区选择准则满足时，确定终端处于小区的正常覆盖。终端在不满足第一小区选择准则且满足第三小区选择准则时，确定处于CE mode A。终端在不满足第三小区选择准则且满足第四小区选择准则时，确定处于CE mode B。CE mode A和CE mode B的含义同现有技术。
在上述第二可选的实施方法的基础上，以下介绍S202的第四种可选的实现方式：
第一门限的值等同于现有CE mode A的门限。终端根据第一门限确定小区选择准则满足时，确定终端处于增强覆盖模式。可以选择使用增强覆盖模式的工作方式进行工作，例如，在窄带上监听MPDCCH。其中，***信息中可以不携带第二门限。或者，在***信息中携带第二门限时，终端忽略第二门限，仅使用第一门限来判断工作模式。在这种情况下，终端可以不使用第二门限来确定第二小区选择准则是否满足，即不确定是否在正常覆盖模式，只要根据第一门限判定增强覆盖的小区选择准则满足，则确定自身处于增强覆盖模式。
实际应用中，终端在进行小区选择时，可能对多个小区测量RSRP值和/或RSRQ值，例如，测量第一小区的RSRP值和/或RSRQ值，以及测量第二小区的RSRP值和/或RSRQ值。针对每个小区，均可以使用上述方法实施例描述的方法来判断是否满足小区选择准则。 当终端在第一小区满足第一小区选择准则，第二小区满足第二小区选择准则且不满足第一小区选择准则时，终端可以根据两个小区测量的RSRP值(和/或RSRQ值)的大小来选择驻留小区。例如，第二小区的RSRP值大于第一小区的RSRP值，则终端选择第二小区为驻留小区。
以下结合图3对本申请实施例的小区选择准则的应用方法进一步说明。
如图3所示，外圈的大圆以内的范围为上文中传统LTE***中小区的正常覆盖范围，由第二门限来判断是否满足传统的正常覆盖的小区选择准则，即第二小区选择准则。带有阴影的小圆(中心圆)以内的范围代表本申请中non-BL终端根据第一门限确定的正常覆盖范围。大圆和小圆之间的环带区域表示终端处于改善的覆盖增强模式或处于正常覆盖范围外，在这个区域终端可以使用增强覆盖的工作模式，例如在窄带上监听MPDCCH。
基于图3的描述，在第二小区选择准则不满足时，如图4所示，竖条纹阴影区域表示终端处于CE mode A，用第三门限来判断是否满足CE mode A的小区选择准则，即第三小区选择准则。在不满足CE mode A的小区选择准则时，方格阴影区域表示终端处于CE mode B，用第四门限来判断是否满足CE mode B的小区选择准则，即第四小区选择准则。
上文中的第一门限如果是功率值(单位dBm)，则可以用q-RxLevMinEnh或q-RxLevMinCE2来表示，如果是质量值(单位dB)，则可以用q-QualMinEnh或q-QualMinCE2来表示，第二门限如果是功率值(单位dBm)，则可以用q-RxLevMin来表示，如果是质量值(单位dB)，则可以用q-QualMin来表示，第三门限如果是功率值(单位dBm)，则可以用q-RxLevMinCE来表示，如果是质量值(单位dB)，则可以用q-QualMinCE来表示，第四门限如果是功率值(单位dBm)，则可以用q-RxLevMinCE1来表示，如果是质量值(单位dB)，则可以用q-QualMinCE1来表示。则上述各小区选择准则为：
第一小区选择准则：
Srxlev＝Q rxlevmeas–(Q rxlevmin_CE2+Q rxlevminoffset)–Pcompensation-Qoffset temp
Squal＝Q qualmeas–(Q qualmin_CE2+Q qualminoffset)-Qoffset temp
第二小区选择准则：
Srxlev＝Q rxlevmeas–(Q rxlevmin+Q rxlevminoffset)–Pcompensation-Qoffset temp
Squal＝Q qualmeas–(Q qualmin+Q qualminoffset)-Qoffset temp
第三小区选择准则：
Srxlev＝Q rxlevmeas–(Q rxlevmin_CE+Q rxlevminoffset)–Pcompensation-Qoffset temp
Squal＝Q qualmeas–(Q qualmin_CE+Q qualminoffset)-Qoffset temp
第四小区选择准则：
Srxlev＝Q rxlevmeas–(Q rxlevmin_CE1+Q rxlevminoffset)–Pcompensation-Qoffset temp
Squal＝Q qualmeas–(Q qualmin_CE1+Q qualminoffset)-Qoffset temp
其中，
Q rxlevmin_CE2＝q-RxLevMinCE2×2[dBm]，Q rxlevmin＝q-RxLevMin×2[dBm]，
Q rxlevmin_CE＝q-RxLevMinCE×2[dBm]，Q rxlevmin_CE1＝q-RxLevMinCE1×2[dBm]，
Q qualmin_CE2＝q-QualMinCE2[dB]，Q qualmin＝q-QualMin[dB]，
Q qualmin＝q-QualMinCE[dB]，Q qualmin＝q-QualMinCE1[dB]。
或者，上述第一门限为门限偏移值，例如用q-RxLevMinOffsetCE2(或q-RxLevMinOffsetEnh)或q-QualMinOffsetCE2(或q-QualMinOffsetEnh)来表示，则第一 小区选择准则为：
Srxlev＝Q rxlevmeas–(Q rxlevmin+Q rxlevminoffset_CE2+Q rxlevminoffset)–Pcompensation-Qoffset temp
Squal＝Q qualmeas–(Q qualmin+Q qualminoffset_CE2+Q qualminoffset)-Qoffset temp
其中，
Q rxlevminoffset_CE2＝q-RxLevMinOffsetCE2[dB]，Q qualminoffset_CE2＝q-QualMinOffsetCE2[dB]。
基于同一种发明构思，如图5所示，本申请还提供了一种小区选择准则的应用装置500，该小区选择准则的应用装置500可适用于图1所示的通信***中，执行上述方法实施例中终端的功能。小区选择准则的应用装置500可以应用于终端，或小区选择准则的应用装置500为一种终端。为了便于说明，图5仅示出了终端的主要部件。如图5所示，小区选择准则的应用装置500包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端进行控制，执行软件程序，处理软件程序的数据，例如用于支持终端执行上述方法实施例中所描述的动作，如，从网络设备接收***信息，根据所述第一门限在确定第一小区选择准则满足时，确定所述终端处于小区的正常覆盖；或者根据所述第一门限确定所述终端处于第二改善的覆盖增强模式等。存储器主要用于存储软件程序和数据，例如存储上述实施例中各个门限等。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端设开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线通信技术发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图5仅示出了一个存储器和一个处理器。在实际的终端中，可以存在多个处理器和多个存储器。存储器也可以称为存储介质或者存储设备等，本申请实施例对此不做限定。
作为一种可选的实现方式，处理器可以包括基带处理器和/或中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端进行控制，执行软件程序，处理软件程序的数据。图5中的处理器可以集成基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端可以包括多个基带处理器以适应不同的网络制式，终端可以包括多个中央处理器以增强其处理能力，终端的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
在本申请实施例中，可以将具有收发功能的天线和控制电路视为小区选择准则的应用装置500的收发单元501，例如，用于支持终端执行如上述方法实施例所述的接收功能和 发送功能。将具有处理功能的处理器视为小区选择准则的应用装置500的处理单元502。如图5所示，小区选择准则的应用装置500包括收发单元501和处理单元502。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元501中用于实现接收功能的器件视为接收单元，将收发单元501中用于实现发送功能的器件视为发送单元，即收发单元501包括接收单元和发送单元，接收单元也可以称为接收机、输入口、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
处理单元502可用于执行该存储器存储的指令，以控制收发单元501接收信号和/或发送信号，完成上述方法实施例中终端的功能。作为一种实现方式，收发单元501的功能可以考虑通过收发电路或者收发的专用芯片实现。
基于同一种发明构思，如图6所示，本申请还提供了一种小区选择准则的应用装置600，该小区选择准则的应用装置600可适用于图1所示的通信***中，执行上述方法实施例中网络设备的功能。该小区选择准则的应用装置600可以为网络设备的结构示意图。如图6所示，该网络设备可应用于如图1所示的***中，执行上述方法实施例中网络设备的功能。小区选择准则的应用装置600(也可以称作网络设备600或基站600)可包括一个或多个射频单元，如远端射频单元(remote radio unit,RRU)601和一个或多个基带单元(baseband unit，BBU)(也可称为数字单元，digital unit，DU)602。所述RRU 601可以称为收发单元、收发机、收发电路、或者收发器等等，其可以包括至少一个天线6011和射频单元605。所述RRU 601部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如将***信息发送给终端。所述BBU 602部分主要用于进行基带处理，对基站进行控制等。所述RRU 601与BBU 602可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
所述BBU 602为基站的控制中心，也可以称为处理单元，主要用于完成基带处理功能，如信道编码、复用、调制、扩频等等。例如所述BBU(处理单元)602可以用于控制网络设备生成***信息，以及执行上述方法实施例中关于网络设备的操作流程。
在一个实施例中，所述BBU 602可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述BBU 602还包括存储器6021和处理器6022，所述存储器6021用于存储必要的指令和数据。例如存储器6021存储上述实施例中的码本索引与预编码矩阵的对应关系。所述处理器6022用于控制网络设备进行必要的动作，例如用于控制网络设备生成***信息，以及执行上述方法实施例中关于网络设备的操作流程。所述存储器6021和处理器6022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
本申请还提供一种通信***，其包括前述的一个或多个网络设备，和，一个或多个终端。
应注意，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步 骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器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，DDR SDRAM)、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，DR RAM)。应注意，本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读介质，其上存储有计算机程序，该计算机程序被计算机执行时实现上述方法实施例所述的方法。
本申请实施例还提供了一种计算机程序产品，该计算机程序产品被计算机执行时实现上述方法实施例所述的方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
本申请实施例还提供了一种处理装置，包括处理器和接口；所述处理器，用于执行上述任一方法实施例所述的方法。
应理解，上述处理装置可以是一个芯片，所述处理器可以通过硬件来实现也可以通过软件来实现，当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现，改存储器可以集成在处理器中，可以位于所述处理器之外，独立存在。
本领域内的技术人员应明白，本申请的实施例可提供为方法、***、或计算机程序产 品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (19)

  1. 一种小区选择准则的应用方法，其特征在于，包括：
    终端从网络设备接收***信息，所述***信息包括第一门限，所述第一门限用于改善的覆盖增强模式；
    所述终端根据所述第一门限在确定第一小区选择准则满足时，确定所述终端处于小区的正常覆盖。
  2. 如权利要求1所述的方法，其特征在于，所述***信息还包括第二门限，所述第二门限用于确定第二小区选择准则是否满足，所述方法还包括：
    所述终端忽略所述第二门限。
  3. 如权利要求1或2所述的方法，其特征在于，所述终端为非带宽减少低复杂度non-BL的终端。
  4. 如权利要求1～3任一项所述的方法，其特征在于，所述第一门限为门限偏移值。
  5. 一种小区选择准则的应用方法，其特征在于，包括：
    终端从网络设备接收***信息，所述***信息包括第一门限，所述第一门限用于改善的覆盖增强模式；
    所述终端根据所述第一门限确定所述终端处于改善的覆盖增强模式。
  6. 如权利要求5所述的方法，其特征在于，所述改善的覆盖增强模式包括：在正常覆盖范围下使用增强覆盖模式工作。
  7. 如权利要求5或6所述的方法，其特征在于，所述第一门限用于判断第一小区选择准则是否满足；所述***信息还包括第二门限，所述第二门限用于判断第二小区选择准则是否满足。
  8. 如权利要求7所述的方法，其特征在于，所述终端根据所述第一门限，确定所述终端处于所述改善的覆盖增强模式，包括：
    所述终端在确定所述第一小区选择准则不满足且所述第二小区选择准则满足时，确定所述终端处于所述改善的覆盖增强模式。
  9. 如权利要求5～8任一项所述的方法，其特征在于，所述终端为非带宽减少低复杂度non-BL的终端。
  10. 如权利要求5～9任一项所述的方法，其特征在于，所述第一门限为门限偏移值。
  11. 一种小区选择准则的应用方法，其特征在于，包括：
    网络设备生成***信息，所述***信息包括第一门限，所述第一门限用于改善的覆盖增强模式；
    所述网络设备向终端发送所述***信息。
  12. 如权利要求11所述的方法，其特征在于，所述***信息还包括第二门限，所述第一门限用于判断第一小区选择准则是否满足，所述第二门限用于判断第二小区选择准则是否满足。
  13. 如权利要求11所述的方法，其特征在于，所述改善的覆盖增强模式包括：在正常覆盖范围下使用增强覆盖模式工作。
  14. 一种应用小区选择准则的装置，其特征在于，包括：
    处理器，用于与存储器耦合，调用所述存储器中的程序，执行所述程序以实现如权利 要求1-4任意一项所述的方法。
  15. 一种应用小区选择准则的装置，其特征在于，包括：
    处理器，用于与存储器耦合，调用所述存储器中的程序，执行所述程序以实现如权利要求5-10任意一项所述的方法。
  16. 一种应用小区选择准则的装置，其特征在于，包括：
    处理器，用于与存储器耦合，调用所述存储器中的程序，执行所述程序以实现如权利要求11-13任意一项所述的方法。
  17. 一种计算机可读存储介质，其特征在于，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行如权利要求1-13任意一项所述的方法。
  18. 一种计算机程序产品，其特征在于，当计算机读取并执行所述计算机程序产品时，使得计算机执行如权利要求1-13任意一项所述的方法。
  19. 一种芯片，其特征在于，所述芯片与存储器相连或者所述芯片包括所述存储器，用于读取并执行所述存储器中存储的软件程序，以实现如权利要求1-13任意一项所述的方法。
PCT/CN2018/110511 2018-10-16 2018-10-16 一种小区选择准则的应用方法及装置 WO2020077541A1 (zh)

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CN104811953A (zh) * 2014-01-26 2015-07-29 上海贝尔股份有限公司 用于覆盖增强模式的mtc用户设备测量控制的方法
CN107040340A (zh) * 2017-05-05 2017-08-11 电信科学技术研究院 一种***消息传输方法及装置
CN107251455A (zh) * 2015-02-12 2017-10-13 索尼公司 电信设备和方法
CN107431962A (zh) * 2015-04-20 2017-12-01 索尼公司 使用未更新的移动信息的小区重选
WO2018082689A1 (zh) * 2016-11-04 2018-05-11 中兴通讯股份有限公司 一种网络选择及接入方法和装置、计算机存储介质

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104811953A (zh) * 2014-01-26 2015-07-29 上海贝尔股份有限公司 用于覆盖增强模式的mtc用户设备测量控制的方法
CN107251455A (zh) * 2015-02-12 2017-10-13 索尼公司 电信设备和方法
CN107431962A (zh) * 2015-04-20 2017-12-01 索尼公司 使用未更新的移动信息的小区重选
WO2018082689A1 (zh) * 2016-11-04 2018-05-11 中兴通讯股份有限公司 一种网络选择及接入方法和装置、计算机存储介质
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