WO2019154061A1 - 无线通信方法以及相应的基站、用户终端 - Google Patents

无线通信方法以及相应的基站、用户终端 Download PDF

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Publication number
WO2019154061A1
WO2019154061A1 PCT/CN2019/072622 CN2019072622W WO2019154061A1 WO 2019154061 A1 WO2019154061 A1 WO 2019154061A1 CN 2019072622 W CN2019072622 W CN 2019072622W WO 2019154061 A1 WO2019154061 A1 WO 2019154061A1
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WIPO (PCT)
Prior art keywords
base station
user terminal
indication information
user terminals
types
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PCT/CN2019/072622
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English (en)
French (fr)
Inventor
王静
王菡凝
刘柳
Original Assignee
株式会社Ntt都科摩
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 株式会社Ntt都科摩 filed Critical 株式会社Ntt都科摩
Priority to CN201980007688.7A priority Critical patent/CN111602422A/zh
Priority to US16/963,394 priority patent/US11595883B2/en
Publication of WO2019154061A1 publication Critical patent/WO2019154061A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present disclosure relates to the field of mobile communications, and more particularly to a method of wireless communication and corresponding base stations, user terminals.
  • a user terminal such as a drone that is capable of flying in the air and capable of communicating with a base station through a wireless communication network may be referred to as a flying user terminal.
  • flight user terminals Compared to terrestrial user terminals, flight user terminals have different characteristics.
  • the flight user terminal is subject to more restrictions, such as flight restrictions, including altitude restrictions, speed limits, and/or whether to allow flight, etc., and the restrictions vary from region to region.
  • the flying user terminal has higher mobility due to its speed and height than the ground user terminal.
  • the height of the flight user terminal often changes, thereby exposing variable wireless propagation conditions.
  • the flying user terminal will be in a more complex wireless environment relative to the terrestrial user terminal, and because of being in the air, the flying user terminal may introduce more interference to the wireless communication network.
  • the above characteristics of the flying user terminal pose a new challenge to its communication with the base station.
  • a wireless communication method performed by a base station includes generating indication information indicating a support capability of the base station for user terminals of different heights and/or types, and transmitting the indication information to a user terminal in a cell managed by the base station.
  • a base station includes: a generating unit configured to generate indication information, the indication information indicating a support capability of the base station for user terminals of different heights and/or types; and a sending unit configured to send the indication information to a user terminal in a cell managed by the base station.
  • a wireless communication method performed by a user terminal includes receiving indication information indicating support capabilities of the base station for user terminals of different heights and/or types, and selecting from the indication information to match the height and/or type of the self Part of the information.
  • a user terminal includes: a receiving unit configured to receive indication information, the indication information indicating a support capability of the base station for user terminals of different heights and/or types; and a selecting unit configured to be from the indication information Select partial information that matches the height and/or type of the self.
  • FIG. 1 is a schematic diagram of a wireless communication system in which embodiments of the present disclosure may be applied.
  • FIG. 2 is a flow chart of a method of wireless communication performed by a base station in accordance with an embodiment of the present disclosure.
  • FIG. 3 is a block diagram of a base station in accordance with an embodiment of the present disclosure.
  • FIG. 4 is a flow chart of a method of wireless communication performed by a user terminal in accordance with an embodiment of the present disclosure.
  • FIG. 5 is a block diagram of a user terminal in accordance with an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a hardware configuration of a base station and a user terminal according to an embodiment of the present disclosure.
  • the wireless communication system may be an LTE system, or any other type of wireless communication system, such as an LTE-A system or a 5G system.
  • LTE-A system an LTE-A system
  • 5G system a wireless communication system in which an embodiment of the present disclosure can be applied.
  • the wireless communication system 100 can include a base station (BS) 110 and a user terminal 120, which is a serving base station of the user terminal 120.
  • the user terminal 120 may be an aircraft (AV) capable of flying in the air and capable of communicating with the base station 110, such as a drone or a UAV, such as a drone based on the 3GPP specification Rel. 15, or a Rel. 15 based on the 3GPP specification. Enhance drones, etc.)
  • AV aircraft
  • a user equipment or user terminal capable of flying in the air and capable of wireless communication with a base station is referred to as a flight user terminal (UT), which may also be interchangeably referred to as a flight user equipment, an air user terminal. , air user equipment, etc.
  • UT flight user terminal
  • the user terminal 120 can also be a non-flying user terminal, such as a terrestrial user terminal.
  • a non-flying user terminal such as a terrestrial user terminal.
  • the wireless communication system may include multiple base stations and/or multiple user terminals, and accordingly, the wireless communication system Multiple cells may be included. Further, in the following, cells and base stations are sometimes used interchangeably.
  • some base stations may only support terrestrial user terminals or flight user terminals, and other base stations may support ground user terminals and flight user terminals.
  • some base stations may only support terrestrial user terminals or flight user terminals, and other base stations may support ground user terminals and flight user terminals.
  • for a base station supporting a flying user terminal only certain heights of the flying user terminal may be supported.
  • the support of the base station to the terrestrial user terminal and/or the flight user terminal may also vary, for example, may vary correspondingly as the number of user terminals in the wireless communication system changes. For example, when the number of flying user terminals in the wireless communication system increases, a base station that does not support the flying user terminal can be configured to support the flying user terminal.
  • the base station may indicate to the user terminal that the base station is for a user terminal having different attributes (eg, altitude, type, speed of movement, capability level, etc.) Support capabilities so that the user terminal determines if the base station can be accessed.
  • the base station may also send a list of cells that the user terminal having different attributes can measure to the user terminal, to indicate that the user terminal only needs to measure the cell in the list.
  • “height” refers to the height of the user terminal relative to the reference (eg, the ground); “type” refers to the classification of the user terminal, for example, the user terminal belongs to a flying user terminal or a non-flight user terminal (such as the ground) "user terminal”; “motion speed” refers to a displacement that the user terminal passes in a unit time with respect to a reference object (for example, the ground); “capability level” refers to a level of communication capability or processing capability that the user terminal can support, for example, The level of data processing capability, maximum number of spatial division multiplexing, modulation and coding capabilities, etc. that the user terminal can support.
  • a base station as a user terminal to indicate a base station's support capability for different heights and/or types of user terminals, and a base station transmitting a list of cells of different heights and/or types of user terminals that can be measured by the base station.
  • the base station may also indicate to the user terminal the support capability of the base station to the user terminal having other attributes than the height and type, and the base station may also send the user with other attributes except the height and type to the user terminal.
  • step S201 the base station generates indication information indicating the support capability of the base station to user terminals of different heights and/or types.
  • the base station's support capability for the user terminal may be, for example, the base station supporting the user terminal, or the base station may not support the user terminal.
  • the base station may generate indication information indicating the support capability of the base station to user terminals of different heights.
  • the base station can determine one or more altitude ranges and then generate indication information indicating the base station's ability to support user terminals whose height is within the one or more altitude ranges.
  • the base station can predetermine three height ranges, which are a first height range (0-50 meters), a second height range (50-100 meters), and a third height range (100-200 meters), which are only supported at the base station.
  • the base station may separately generate indication information indicating that the base station supports the user terminal whose height is within the first height range, and indicating that the base station does not support the user terminal whose height is within the second height range.
  • the base station does not need to generate corresponding indication information.
  • the base station may only generate indication information indicating that the base station supports the user terminal whose height is within one or more altitude ranges.
  • the base station may only generate indication information indicating that the base station supports the user terminal whose height is within the first height range.
  • the base station may only generate indication information indicating that the base station does not support the user terminal whose height is within one or more altitude ranges, for example, the base station may only generate indication information indicating that the base station does not support the user terminal whose height is within the second height range, and the indication.
  • the base station does not support the indication information of the user terminal whose height is within the third height range.
  • the base station may further generate indication information indicating the base station's support capability for the user terminal of a certain height. For example, in the case that the base station supports a user terminal having a height of 150 meters, the base station may generate indication information indicating that the base station supports a user terminal having a height of 150 meters. For another example, in a case where the base station does not support a user terminal having a height of 250 meters, the base station may generate indication information indicating that the base station does not support the user terminal having a height of 250 meters.
  • the base station may generate indication information indicating the support capability of the base station to different types of user terminals.
  • the base station may predetermine one or more types of user terminals and then generate indication information indicating the base station's ability to support the one or more types of user terminals.
  • the base station may determine two types of user terminals, which are respectively a flight user terminal or a non-flight user terminal. In the case that the base station only supports the flight user terminal, the base station may generate indication information indicating that the base station supports the flight user terminal and indicate that the base station does not support. Instructions for non-flight user terminals.
  • the base station may generate indication information indicating base station support capabilities for user terminals of different heights and types.
  • the base station can determine one or more altitude ranges and one or more types of user terminals, and then generate indication information indicating the base station's various heights within the one or more height ranges User terminal support capabilities.
  • the base station may predetermine three height ranges, which are a first height range (0-50 meters), a second height range (50-100 meters), a third height range (100-200 meters), and two types of determination.
  • the user terminals are respectively a flight user terminal or a non-flight user terminal.
  • the base station may separately generate a flight indicating that the base station does not support the altitude within the first height range.
  • the indication information of the user terminal the indication information indicating that the base station does not support the non-flight user terminal whose height is within the first height range, the indication information indicating that the base station supports the flight user terminal whose height is within the second height range, indicating that the base station does not support the altitude
  • the indication information of the non-flight user terminal in the second height range, the indication information indicating that the base station does not support the flight user terminal whose height is within the third height range, and the indication that the base station does not support the non-flight user terminal whose height is within the third height range Instructions.
  • the base station may also generate indication information indicating the base station's support capabilities for a particular user terminal of a particular height. For example, in the case where the base station supports a flying user terminal having a height of 150 meters, the base station can generate indication information indicating that the base station supports a flying user terminal having a height of 150 meters. For another example, in the case where the base station does not support a flying user terminal having a height of 250 meters, the base station may generate indication information indicating that the base station does not support the flying user terminal having a height of 250 meters.
  • the base station can generate multiple indication information for multiple heights of user terminals and each indication information respectively indicates that the base station supports the user terminals of the respective heights, or generates for multiple user terminals.
  • the plurality of indication information and the indication information respectively indicate the support capability of the base station to the various types of user terminals, or generate multiple indication information for multiple user terminals of multiple heights, and each indication information respectively indicates the base station to each type of user terminal of each height. Supporting ability, but the disclosure is not limited thereto.
  • the base station may generate an indication information for the user terminals of the multiple heights, and the one indication information may indicate that the base station supports the user terminals of the multiple heights, or generate an indication information for the multiple user terminals and the one
  • the indication information may indicate that the base station supports the various types of user terminals, or generates an indication information for multiple user terminals of multiple heights, and the one indication information may indicate the support capability of the base station for each type of user terminal of each height.
  • a base station may support two or more height/height range user terminals, or may support two or more user terminals, or may support two height/height ranges or Two or more user terminals, or one type of user terminal that can support two height/height ranges.
  • the indication information may be access restriction information indicating an access restriction set by the base station to user terminals of different heights and/or types.
  • the indication information may be access restriction information indicating an access restriction set by the base station to user terminals of different heights.
  • the indication information may be access restriction information indicating an access restriction set by the base station for different types of user terminals.
  • the indication information may be access restriction information indicating an access restriction set by the base station to user terminals of different heights and types.
  • the access restriction information may be, for example, information about whether the base station allows user terminal access.
  • the access restriction information may be, for example, information that the base station allows the user terminal to camp/cell selection/reselection/access; when the base station does not support the user terminal, the access restriction information may be, for example, the base station does not allow.
  • the base station may respectively use one or more bits as access restriction information, and respectively set different values for the one or more bits to indicate whether the base station allows each height and/or type. User terminal access.
  • the user terminal may determine, according to the access restriction information, whether the base station supports its own height and/or type of user terminal access.
  • the access restriction information may be the parameter “cellBarred”, the parameter “cellBarred” occupies 1 bit and the different values of the bits occupied by the parameter “cellBarred” indicate whether the base station allows User terminal camp/cell selection/reselection/access of a certain height and/or type.
  • the base station when the parameter "cellBarred” takes a value of a first value (such as 0 or barred), the base station does not allow the user terminal to camp/cell selection/reselection/access of the height and/or type; When “cellBarred” takes a second value (such as 1 or not barred), it indicates that the base station allows the user terminal camp/cell selection/reselection/access of the height and/or type. Then, after the base station sends the parameter "cellBarred" to the user terminal, the user terminal can determine, according to the value of the parameter "cellBarred", the access restriction of the base station to the user terminal of the height and/or type, so that the user terminal determines whether it is correct. The base station performs operations such as cell selection/reselection/access.
  • a first value such as 0 or barred
  • the base station completely disables the user terminal camp/cell selection/reselection/access of the height and/or type
  • the second value of 1 indicates that the base station fully supports the height and / or type of user terminal camp / cell selection / reselection / access.
  • the values of the first value and the second value may not be 0 or 1, but may be any real number between 0 and 1, to indicate that the base station does not completely prohibit or does not fully support a certain height and / or type of user terminal camp / cell selection / reselection / access.
  • the first value may be 0.5 to indicate that the probability of a certain height and/or type of user terminal camp/cell selection/reselection/access to the base station is 50%.
  • the access restriction information may be the parameter "cellBarred” and the parameter "cellReservedForOperatorUse", the parameter "cellBarred” and the parameter “cellReservedForOperatorUse” occupy a plurality of bits, wherein the parameter “cellBarred” Indicates whether the base station allows a certain height and/or type of user terminal camp/cell selection/reselection/access, and when the parameter "cellBarred” indicates that the base station does not prohibit a certain height and/or type of user terminal camp/cell When selecting/reselecting/accessing, the parameter "cellReservedForOperatorUse" further indicates whether the base station allows a certain level and/or type of user terminal camp/cell selection/reselection/access.
  • the parameter "cellBarred” has been described above and will not be described again here.
  • the parameter "cellReservedForOperatorUse” is similar, and can occupy 1 bit, and indicates that the base station allows the height and/or type when the value of the parameter "cellReservedForOperatorUse" is a third value (such as 0, ie, not reserved).
  • the values of the third and fourth values may not be 0 or 1, but may be any real number between 0 and 1 to indicate that the base station does not completely retain or completely retain a certain height and / Or type of user terminal camp/cell selection/reselection/access.
  • the third value may be 0.5 to indicate that the base station reserves a certain height and/or type of user terminal camp/cell selection/reselection/access probability of 50%.
  • the base station may employ a set of parameters ("cellBarred” and "cellReservedForOperatorUse”) as access restriction information. Therefore, the base station can separately set each group of parameters as corresponding access restriction information for user terminals of respective heights and/or types. Then, the base station can send each group of parameters to the user terminal, so that the user terminal determines the access restriction of the base station to the user terminal of its own height and/or type. The base station can transmit by using the first system information when transmitting each group parameter to the user terminal, which will be described in the following step S202.
  • the indication information may be capability category information indicating the Access Classes/ACDC categories set by the base station for different heights and/or types of user terminals.
  • the indication information may be capability category information indicating an accessible category set by the base station to user terminals of different heights.
  • the indication information may be capability category information indicating an accessible category set by the base station for different types of user terminals.
  • the indication information may be capability category information indicating an accessible category set by the base station to user terminals of different heights and types.
  • the capability class information may be, for example, information about which classes of user terminals the base station allows.
  • the capability category information may be, for example, category information of the user terminal that the base station is allowed to access; when the base station does not support the user terminal, the access restriction information may be, for example, a category of the user terminal that the base station does not allow access to. information.
  • the base station may set a set of access class prohibition (AC-barring) factors as the base station's capabilities for one or more user terminals of the height and/or type. Category information, where a set of AC-barring factors includes one or more AC-barring factors.
  • the AC-barring factor may be, for example, a capability class barring threshold to indicate a value at which the actual value of the capability class factor computed by the user terminal should not exceed when the user terminal accesses the base station.
  • the base station can respectively set an AC-barring factor corresponding to each capability level.
  • the user terminal can calculate the actual value of the access class factor of the user terminal according to its own capability level, and determine whether the actual value of the operation is smaller than the received The value of the AC-barring factor set by the base station corresponding to the capability level of the user terminal, thereby determining whether the connection (RRC_CONNECTED) state can be entered from the idle (RRC_IDLE) state in the cell corresponding to the base station. For example, if the determination result is yes, the user terminal may enter the connection state from the idle state in the cell corresponding to the base station; if the determination result is no, the user terminal cannot be in the cell corresponding to the base station. The idle state enters the connected state.
  • the value of the "AC-barring" factor herein may be a real number, for example, 0, 1, or a real number between 0 and 1, which is not limited in the present disclosure.
  • the base station may employ a set of AC-barring factors as the capability category information. Therefore, the base station can separately set a set of AC-barring factors as corresponding capability category information for one or more user terminals of respective heights and/or types. Then, the base station can send each group of AC-barring factors to the user terminal, so that the user terminal determines whether the base station allows access to the user terminal of its own class. The base station can transmit by using the second system information when transmitting each group of AC-barring factors to the user terminal, which will be described in the following step S202.
  • the indication information may be combination information of the capability category information and the access restriction information.
  • the access restriction information in the indication information is the parameter "cellBarred” and the value of the parameter "cellBarred” indicates that the base station allows the user terminal of the height and/or type to reside / Cell selection/reselection/access
  • the capability class information in the indication information may further indicate which classes of user terminals of the height and/or type of user terminals the base station allows.
  • the capability class information in the indication information may further indicate which classes of user terminals of the height and/or type of user terminals the base station allows.
  • the base station may also generate cell list information, which is a list of cells that are measured by user terminals of different heights and/or types.
  • the list of cells may be a list of cells that are measured by user terminals of different heights and/or types on one or more frequencies.
  • the cell list may be a list of cells that are measured by user terminals of different heights on one or more frequencies.
  • the cell list may be a list of cells that are measured by different types of user terminals on one or more frequencies.
  • the cell list may be a list of cells that are measured by one or more frequencies by user terminals of different heights and types. It is to be understood that the base station may generate the cell list information when generating the indication information, or generate the cell list information after generating the indication information or generate the cell list information before generating the indication information.
  • the cell list may be a list of cells of different heights and/or types of user terminals for intra-frequency measurements.
  • the cell list may be a cell that supports user equipment of various heights and/or types of radio resource management (RRM) measurements that can be used for co-frequency cell reselection or handover. List.
  • RRM radio resource management
  • the user terminal may select a cell in the cell list that matches its own height and/or type to perform RRM measurement for co-frequency cell reselection or handover.
  • the cell list may be a list of cells of different heights and/or types of user terminals performing intra-frequency measurement on one frequency, the one frequency may be the same as the carrier frequency of the cell corresponding to the base station. Frequency of.
  • the cell list may also be a list of cells of different heights and/or types of user terminals for inter-frequency measurements.
  • the base station can also generate frequency information of the inter-frequency measurement by the user terminals of different heights and/or types.
  • the cell list may be the available frequency of RRM measurements available for inter-frequency cell reselection or handover of user terminals of respective heights and/or types, and on each frequency List of supported cells.
  • the user terminal may select a frequency and cell list that matches its own height and/or type, and then perform inter-frequency RRM measurement on the corresponding frequency and cell to perform inter-frequency cell reselection or handover. .
  • the cell list may be a list of cells of different heights and/or types of user terminals performing inter-frequency measurements on one or more frequencies, the one or more frequencies may be corresponding to the base station The carrier frequency of the cell is different from one or more frequencies.
  • the "cell list” described herein may be part or all of the neighbor cell list (NCL) maintained by the base station, or part of the Neighbor relation table (NRT) maintained by the base station. Or all cells.
  • NCL neighbor cell list
  • NRT Neighbor relation table
  • the base station may select a different number of cells from the NCL or NRT to inform the user of the RRM measurement.
  • the base station may select a different number of cells from the NCL or NRT according to the location of the user terminal, the load status of the neighboring cell, and/or the network status of the communication system to notify the user of the RRM measurement.
  • the flight user terminal in the height range may not have the communication condition of the line-of-sight transmission, and It may face the same transmission environment as the ground user terminal, so for the flight user terminal in the height range, more cells can be selected for the flight user terminal to perform RRM measurement to ensure that the flight user terminal obtains good communication.
  • the height range of the flying user terminal is high, since there are fewer obstacles between the flying user terminal and the base station, only a small number of base stations are needed to ensure that the flying user terminal obtains good communication. Therefore, fewer cells can be selected for the flight user terminal to perform RRM measurements.
  • the base station may also select the same number of cells from the NCL or NRT for RRM measurement.
  • the base station may also select different cells from the NCL or NRT for RRM measurement, and the number of different cells may be the same or different.
  • the base station may select a cell with a different geographic location from the NCL or the NRT according to the height of the user terminal, the direction of motion, etc. to perform RRM measurement, and the number of cells with different geographical locations may be the same or different.
  • the base station generates indication information indicating the base station's ability to support different heights and/or types of user terminals and a list of measurable cells provided by the base station to different heights and/or types of user terminals.
  • the indication information or cell list generated by the base station at different times may be different for a certain height and/or type of the user terminal.
  • the number of user terminals in a wireless communication system may be different at different times.
  • a base station that does not originally support the flying user terminal may be configured to support flight.
  • the base station can generate new indication information to indicate that the base station supports the flight user terminal.
  • the base station can also generate a new cell list.
  • the base station is the indication information or the cell list generated for the user terminals of different heights and/or types, but the present disclosure is not limited thereto.
  • the base station may generate indication information or a cell list for user terminals of different attributes, where the attributes include any one or more of a height, a type, a motion speed, a capability level, and the like of the user terminal.
  • the base station transmits the indication information to the user terminal in the cell managed by the base station.
  • the cell managed by the base station may be one or more, for example, may be one macro cell, or may be a combination of one macro cell and multiple small cells.
  • the base station may broadcast one or more pieces of indication information generated in step S201 to the user terminal within the cell it manages.
  • the base station can broadcast the indication information generated in step S201 to the user terminal in the cell it manages in the broadcast channel.
  • the user terminals in the cell managed by the base station can receive the indication information of the base station to the user terminals of different heights and/or types. Then, the user terminal in the cell managed by the base station may select part of the information matching the height and/or type of the received information from the received indication information for camping/cell selection/reselection/access, RRM measurement, etc. .
  • the base station may broadcast the indication information to the user terminal within the cell managed by the base station through the system information.
  • the base station may transmit the access restriction information to the first system information to The user terminal; when the indication information is the capability category information indicating the accessable category of the base station to the user terminal of different heights and/or types, the base station may send the capability category information to the user terminal by using the second system information.
  • the base station may broadcast the indication information as system information to the user terminals within the cell managed by the base station through one or more System Information Blocks (SIBs).
  • SIB1 to SIB13 have been defined to transmit various system information.
  • the base station since the LTE system does not distinguish the height and/or type of the user terminal, the system information transmitted by the base station to user terminals of different heights and/or types is the same.
  • the base station in order to improve communication between user terminals and base stations of different heights and/or types, user terminals of different heights and/or types are distinguished, and the base station generates different heights and/or types in step S201. Instructions for the user terminal. Therefore, in the present disclosure, the base station can modify the SIB in the LTE system to transmit the indication information generated in step S201.
  • the base station may add one or more bits to the SIB in the LTE system, and the different values of the one or more bits identify that the SIB corresponds to different heights and/or types of user terminals.
  • the indication information is access restriction information indicating the access restriction of the base station to user terminals of different heights and/or types
  • the base station may separately set a group for each height and/or type of user terminal.
  • the parameters eg, "cellBarred” and "cellReservedForOperatorUse" are used as corresponding access restriction information, in which case the base station can determine SIB1 for each height and/or type of user terminal, respectively.
  • the determined SIB1 may include not only the set of parameters (eg, "cellBarred” and "cellReservedForOperatorUse”) set by the base station for the user terminal of the height and/or type, but may also include identification information, wherein the identification information may identify The SIB1 corresponds to the user terminal of the height and/or type.
  • the set of parameters eg, "cellBarred” and "cellReservedForOperatorUse”
  • identification information may identify The SIB1 corresponds to the user terminal of the height and/or type.
  • the base station can be separately set for each height and/or type of user terminal.
  • a set of AC-barring factors is defined as capability class information, in which case the base station can determine SIB2 for each of the height and/or type of user terminals.
  • the determined SIB2 may include not only the set of AC-barring factors set by the base station for the user terminal of the height and/or type, but also identifier information, wherein the identifier information may identify that the SIB2 corresponds to the height and/or Or type of user terminal.
  • the base station may also not modify the SIB in the LTE system, but define one or more new SIBs to transmit the indication information generated in step S201.
  • the base station may transmit the indication information generated in step S201 to the user terminal in the cell managed by the base station by radio resource control (RRC) signaling.
  • RRC radio resource control
  • the user terminal can receive the indication information generated by the base station by receiving the RRC signaling.
  • the base station may also use the system information and the RRC signaling to transmit the indication information generated in step S201. Accordingly, the user terminal may receive the base station by receiving a combination of system information and RRC signaling. Generated instructions.
  • the cell list generated by the base station mentioned above may also be transmitted to the user terminal in the manner described in the above example.
  • the base station may broadcast the generated cell list to the user terminal in the cell it manages.
  • the base station may broadcast the cell list to the user terminal in the cell managed by the base station by using the system information.
  • the base station may further send the generated cell list to the user terminal in the cell managed by the base station by using RRC signaling.
  • the base station may also use the system information and the RRC signaling to transmit the generated cell list.
  • the base station distinguishes user terminals of different heights and/or types, and generates indication information or a cell list for user terminals of different heights and/or types, so that the user terminal can receive from the user terminal. Selecting information in the indication information or cell list that matches its own height and/or type to selectively perform operations such as camping/cell selection/access, RRM measurement, etc., thereby improving different heights and/or types.
  • the communication between the user terminal and the base station ensures that user terminals of different heights and/or types can obtain good communication.
  • FIG. 3 shows a block diagram of a base station 300 in accordance with an embodiment of the present disclosure. Since the functions of the base station 300 are the same as those of the method 200 described above with reference to FIG. 2, a detailed description of the same content is omitted herein for the sake of brevity.
  • the base station 300 includes a generating unit 310 configured to generate indication information indicating base station support capabilities for user terminals of different heights and/or types, and a transmitting unit 320 configured to: The information is sent to the user terminal in the cell managed by the base station.
  • the base station 300 may also include other units than the above two units, but since these units are not related to the present disclosure, the description of these units is omitted.
  • the base station's support capability for the user terminal may be, for example, the base station supporting the user terminal, or the base station may not support the user terminal.
  • the generating unit 310 may generate indication information indicating a base station's support capability for user terminals of different heights.
  • the generating unit 310 can determine one or more height ranges and then generate indication information indicating the base station's ability to support the user terminals whose height is within the one or more height ranges.
  • the generating unit 310 may predetermine three height ranges, which are a first height range (0-50 meters), a second height range (50-100 meters), and a third height range (100-200 meters), respectively, at the base station.
  • the generating unit 310 may respectively generate indication information indicating that the base station supports the user terminal whose height is within the first height range, and indicate that the base station does not support the height within the second height range.
  • the generation unit 310 need not necessarily generate corresponding indication information.
  • the generating unit 310 may only generate indication information indicating that the base station supports the user terminal whose height is within one or more height ranges.
  • the generating unit 310 may only generate an indication that the base station supports the user terminal whose height is within the first height range. information.
  • the generating unit 310 may only generate indication information indicating that the base station does not support the user terminal whose height is within one or more height ranges, for example, the generating unit 310 may only generate the user terminal that indicates that the base station does not support the height in the second height range.
  • the indication information and the indication information indicating that the base station does not support the user terminal whose height is within the third height range are also similar and will not be described again.
  • the generating unit 310 may further generate indication information indicating the support capability of the base station to the user terminal of a certain height. For example, in a case where the base station supports a user terminal having a height of 150 meters, the generating unit 310 may generate indication information indicating that the base station supports a user terminal having a height of 150 meters. For another example, in a case where the base station does not support the user terminal having a height of 250 meters, the generating unit 310 may generate indication information indicating that the base station does not support the user terminal having a height of 250 meters.
  • the generating unit 310 may generate indication information indicating a base station's support capability for different types of user terminals.
  • the generating unit 310 may predetermine one or more types of user terminals, and then generate indication information indicating the base station's support capabilities for the one or more types of user terminals.
  • the generating unit 310 may predetermine two kinds of user terminals, which are respectively a flying user terminal or a non-flying user terminal. In a case where the base station only supports the flying user terminal, the generating unit 310 may generate indication information indicating that the base station supports the flying user terminal, and Indicates that the base station does not support the indication information of the non-flight user terminal.
  • the generating unit 310 may generate indication information indicating base station support capabilities for user terminals of different heights and types.
  • the generating unit 310 may determine one or more height ranges and one or more types of user terminals, and then generate indication information indicating that the base station is within the one or more height ranges Support capabilities of various user terminals. For example, the generating unit 310 may predetermine three height ranges, which are a first height range (0-50 meters), a second height range (50-100 meters), a third height range (100-200 meters), and a determination.
  • the two types of user terminals are respectively a flight user terminal or a non-flight user terminal.
  • the generating unit 310 may separately generate the indication that the base station does not support the height at the first height.
  • the indication information of the flight user terminal in the range the indication information indicating that the base station does not support the non-flight user terminal whose height is within the first height range, the indication information indicating that the base station supports the flight user terminal whose height is within the second height range, indicating the base station
  • the indication information of the non-flight user terminal whose height is within the second height range, the indication information indicating that the base station does not support the flight user terminal whose height is within the third height range, and the indication that the base station does not support the height within the third height range are not supported. Instructions for the flight user terminal.
  • the generating unit 310 may also generate indication information indicating the support capability of the base station for a particular user terminal of a particular height. For example, in the case where the base station supports a flying user terminal having a height of 150 meters, the generating unit 310 may generate indication information indicating that the base station supports the flying user terminal having a height of 150 meters. For another example, in a case where the base station does not support a flying user terminal having a height of 250 meters, the generating unit 310 may generate indication information indicating that the base station does not support the flying user terminal having a height of 250 meters.
  • the indication information may be access restriction information indicating an access restriction set by the base station for user terminals of different heights and/or types.
  • the indication information may be access restriction information indicating an access restriction set by the base station to user terminals of different heights.
  • the indication information may be access restriction information indicating an access restriction set by the base station for different types of user terminals.
  • the indication information may be access restriction information indicating an access restriction set by the base station to user terminals of different heights and types.
  • the access restriction information may be, for example, information about whether the base station allows user terminal access.
  • the access restriction information may be, for example, information that the base station allows the user terminal to camp/cell selection/reselection/access; when the base station does not support the user terminal, the access restriction information may be, for example, the base station does not allow.
  • the base station may respectively use one or more bits as access restriction information, and respectively set different values for the one or more bits to indicate whether the base station allows each height and/or type. User terminal access.
  • the user terminal may determine, according to the access restriction information, whether the base station supports its own height and/or type of user terminal access.
  • the access restriction information may be the parameter “cellBarred”, the parameter “cellBarred” occupies 1 bit and the different values of the bits occupied by the parameter “cellBarred” indicate whether the base station allows User terminal camp/cell selection/reselection/access of a certain height and/or type.
  • the base station when the parameter "cellBarred” takes a value of a first value (such as 0 or barred), the base station does not allow the user terminal to camp/cell selection/reselection/access of the height and/or type; When “cellBarred” takes a second value (such as 1 or not barred), it indicates that the base station allows the user terminal camp/cell selection/reselection/access of the height and/or type. Then, after the base station sends the parameter "cellBarred" to the user terminal, the user terminal can determine, according to the value of the parameter "cellBarred", the access restriction of the base station to the user terminal of the height and/or type, so that the user terminal determines whether it is correct. The base station performs operations such as cell selection/reselection/access.
  • a first value such as 0 or barred
  • the base station completely disables the user terminal camp/cell selection/reselection/access of the height and/or type
  • the second value of 1 indicates that the base station fully supports the height and / or type of user terminal camp / cell selection / reselection / access.
  • the values of the first value and the second value may not be 0 or 1, but may be any real number between 0 and 1, to indicate that the base station does not completely prohibit or does not fully support a certain height and / or type of user terminal camp / cell selection / reselection / access.
  • the first value may be 0.5 to indicate that the probability of a certain height and/or type of user terminal camp/cell selection/reselection/access to the base station is 50%.
  • the access restriction information may be the parameter "cellBarred” and the parameter "cellReservedForOperatorUse", the parameter "cellBarred” and the parameter “cellReservedForOperatorUse” occupy a plurality of bits, wherein the parameter “cellBarred” Indicates whether the base station allows a certain height and/or type of user terminal camp/cell selection/reselection/access, and when the parameter "cellBarred” indicates that the base station does not prohibit a certain height and/or type of user terminal camp/cell When selecting/reselecting/accessing, the parameter "cellReservedForOperatorUse" further indicates whether the base station allows a certain level and/or type of user terminal camp/cell selection/reselection/access.
  • the parameter "cellBarred” has been described above and will not be described again here.
  • the parameter "cellReservedForOperatorUse” is similar, and can occupy 1 bit, and indicates that the base station allows the height and/or type when the value of the parameter "cellReservedForOperatorUse" is a third value (such as 0, ie, not reserved).
  • the values of the third and fourth values may not be 0 or 1, but may be any real number between 0 and 1 to indicate that the base station does not completely retain or completely retain a certain height and / Or type of user terminal camp/cell selection/reselection/access.
  • the third value may be 0.5 to indicate that the base station reserves a certain height and/or type of user terminal camp/cell selection/reselection/access probability of 50%.
  • the base station may employ a set of parameters ("cellBarred” and "cellReservedForOperatorUse") as access restriction information. Therefore, the base station can separately set each group of parameters as corresponding access restriction information for user terminals of respective heights and/or types. The base station can then send each set of parameters to the user terminal so that the user terminal determines the access restrictions of the base station to its own height and/or type of user terminal. The base station may transmit by using the first system information when transmitting each group parameter to the user terminal, which will be described below.
  • the indication information may be capability category information indicating the Access Classes/ACDC categories set by the base station for different heights and/or types of user terminals.
  • the indication information may be capability category information indicating an accessible category set by the base station to user terminals of different heights.
  • the indication information may be capability category information indicating an accessible category set by the base station for different types of user terminals.
  • the indication information may be capability category information indicating an accessible category set by the base station to user terminals of different heights and types.
  • the capability class information may be, for example, information about which classes of user terminals the base station allows.
  • the capability category information may be, for example, category information of the user terminal that the base station is allowed to access; when the base station does not support the user terminal, the access restriction information may be, for example, a category of the user terminal that the base station does not allow access to. information.
  • the base station may set a set of access class prohibition (AC-barring) factors as the base station's capabilities for one or more user terminals of the height and/or type. Category information, where a set of AC-barring factors includes one or more AC-barring factors.
  • the AC-barring factor may be, for example, a capability class barring threshold to indicate a value that the actual value of the capability class factor computed by the user terminal should not exceed when the user terminal accesses the base station.
  • the base station can respectively set an AC-barring factor corresponding to each capability level.
  • the user terminal can calculate the actual value of the access class factor of the user terminal according to its own capability level, and determine whether the actual value of the operation is smaller than the received The value of the AC-barring factor set by the base station corresponding to the capability level of the user terminal, thereby determining whether the connection (RRC_CONNECTED) state can be entered from the idle (RRC_IDLE) state in the cell corresponding to the base station. It can be understood that when the user terminal selects a cell to camp on, the user terminal can ignore the information.
  • the value of the "AC-barring" factor herein may be a real number, for example, 0, 1, or a real number between 0 and 1, which is not limited in the present disclosure.
  • the base station may employ a set of AC-barring factors as the capability category information. Therefore, the base station can separately set a set of AC-barring factors as corresponding capability category information for one or more user terminals of respective heights and/or types. Then, the base station can send each group of AC-barring factors to the user terminal, so that the user terminal determines whether the base station allows access to the user terminal of its own class. The base station can transmit by using the second system information when transmitting each group of AC-barring factors to the user terminal, which will be described below.
  • the indication information may be combined information of the capability category information and the access restriction information.
  • the capability class information in the indication information may further indicate which classes of user terminals of the height and/or type of user terminals the base station allows.
  • the capability class information in the indication information may further indicate which classes of user terminals of the height and/or type of user terminals the base station allows.
  • the generating unit 310 may also generate cell list information, which is a cell measured by user terminals of different heights and/or types.
  • list of the list of cells may be a list of cells that are measured by user terminals of different heights and/or types on one or more frequencies.
  • the cell list may be a list of cells that are measured by user terminals of different heights on one or more frequencies.
  • the cell list may be a list of cells that are measured by different types of user terminals on one or more frequencies.
  • the cell list may be a list of cells that are measured by one or more frequencies by user terminals of different heights and types. It is to be understood that the base station may generate the cell list information when generating the indication information, or generate the cell list information after generating the indication information or generate the cell list information before generating the indication information.
  • the cell list may be a list of cells of different heights and/or types of user terminals for intra-frequency measurements.
  • the cell list may be a cell that supports user equipment of various heights and/or types of radio resource management (RRM) measurements that can be used for co-frequency cell reselection or handover. List.
  • RRM radio resource management
  • the user terminal may select a cell in the cell list that matches its own height and/or type to perform RRM measurement for co-frequency cell reselection or handover.
  • the cell list may be a list of cells of different heights and/or types of user terminals performing intra-frequency measurement on one frequency, the one frequency may be the same as the carrier frequency of the cell corresponding to the base station. Frequency of.
  • the cell list may also be a list of cells of different heights and/or types of user terminals for inter-frequency measurements.
  • the base station can also generate frequency information of the inter-frequency measurement by the user terminals of different heights and/or types.
  • the cell list may be the available frequency of RRM measurements available for inter-frequency cell reselection or handover of user terminals of respective heights and/or types, and on each frequency List of supported cells.
  • the user terminal may select a frequency and cell list that matches its own height and/or type, and then perform inter-frequency RRM measurement on the corresponding frequency and cell to perform inter-frequency cell reselection or handover. .
  • the cell list may be a list of cells of different heights and/or types of user terminals performing inter-frequency measurements on one or more frequencies, the one or more frequencies may be corresponding to the base station The carrier frequency of the cell is different from one or more frequencies.
  • the generating unit 310 is the indication information or the cell list generated for the user terminals of different heights and/or types, but the present disclosure is not limited thereto.
  • the generating unit 310 may generate indication information or a cell list for user terminals of different attributes, where the attributes include any one or more of a height, a type, a motion speed, a capability level, and the like of the user terminal.
  • the transmitting unit 320 may broadcast one or more pieces of indication information generated by the generating unit 310 to a user terminal within a cell it manages.
  • the transmitting unit 320 may broadcast the indication information generated by the generating unit 310 to the user terminal in the cell it manages in the broadcast channel.
  • the user terminals in the cell managed by the base station can receive the indication information of the base station to the user terminals of different heights and/or types. Then, the user terminal in the cell managed by the base station may select part of the information matching the height and/or type of the received information from the received indication information for camping/cell selection/reselection/access, RRM measurement, etc. .
  • the transmitting unit 320 may broadcast the indication information to the user terminal in the cell managed by the base station through the system information.
  • the base station may transmit the access restriction information to the first system information to The user terminal; when the indication information is the capability category information indicating the accessable category of the base station to the user terminal of different heights and/or types, the base station may send the capability category information to the user terminal by using the second system information.
  • the transmitting unit 320 may broadcast the indication information as system information to the user terminal in the cell managed by the base station through one or more system information blocks (SIBs).
  • SIBs system information blocks
  • SIB1 to SIB13 have been defined to transmit various system information.
  • the base station since the LTE system does not distinguish the height and/or type of the user terminal, the system information transmitted by the base station to user terminals of different heights and/or types is the same.
  • the base station may modify the SIB in the LTE system to transmit the indication information generated at the generating unit 310.
  • the sending unit 320 may add one or more bits to the SIB in the LTE system, and different values of the one or more bits to identify that the SIB corresponds to user terminals of different heights and/or types.
  • the indication information is access restriction information indicating the access restriction of the base station to user terminals of different heights and/or types
  • the base station may separately set a group for each height and/or type of user terminal.
  • the parameters eg, "cellBarred” and "cellReservedForOperatorUse" are used as corresponding access restriction information, in which case the base station can determine SIB1 for each height and/or type of user terminal, respectively.
  • the determined SIB1 may include not only the set of parameters (eg, "cellBarred” and "cellReservedForOperatorUse”) set by the base station for the user terminal of the height and/or type, but may also include identification information, wherein the identification information may identify
  • the SIB1 corresponds to the user terminal of the height and/or type.
  • the information transmitted through SIB1 may be the first system information mentioned above.
  • the base station can be separately set for each height and/or type of user terminal.
  • a set of AC-barring factors is determined as the capability category information, in which case the transmitting unit 320 can determine the SIB2 for each of the height and/or type of user terminals, respectively.
  • the determined SIB2 may include not only the set of AC-barring factors set by the base station for the user terminal of the height and/or type, but also identifier information, wherein the identifier information may identify that the SIB2 corresponds to the height and/or Or type of user terminal.
  • the information transmitted through the SIB2 may be the second system information mentioned above.
  • the cell list generated by the generating unit 310 mentioned above may also be transmitted to the user terminal in the manner described by the above example.
  • the sending unit 320 may broadcast the generated cell list to the user terminal in the cell it manages.
  • the sending unit 320 may broadcast the cell list to the user terminal in the cell managed by the base station by using the system information.
  • the sending unit 320 may further send the generated cell list to the user terminal in the cell managed by the base station by using RRC signaling.
  • the sending unit 320 may also use the system information and the RRC signaling to transmit the generated cell list.
  • the base station distinguishes user terminals of different heights and/or types, and generates indication information or a cell list for user terminals of different heights and/or types, so that the user terminal can receive from the user terminal. Selecting information in the indication information or cell list that matches its own height and/or type to selectively perform operations such as camping/cell selection/access, RRM measurement, etc., thereby improving different heights and/or types.
  • the communication between the user terminal and the base station ensures that user terminals of different heights and/or types can obtain good communication.
  • FIG. 4 is a flow diagram of a wireless communication method 400 performed by a user terminal in accordance with an embodiment of the disclosure. Since the method 400 is identical to the details of the method 200 described above with respect to FIG. 2, a detailed description of the same content is omitted herein for the sake of brevity.
  • step S401 the user terminal receives indication information indicating the support capability of the base station to user terminals of different heights and/or types. Then, in step S402, partial information matching the height and/or type of the self is selected from the indication information.
  • the user terminal may receive multiple indication information, which are indication information of the base station for each height and/or type of user terminal, respectively. Then, in step S402, the user terminal may select one indication information that matches the height and/or type of itself from the plurality of indication information. Then, the user terminal can determine the support capability of the base station for its own height and/or type of user terminal according to the selected indication information, and when the base station supports its own height and/or type of user terminal access, the user terminal can Performing operations such as camping/cell selection/access, and when the base station provides a list of cells that can be measured to the user terminal of its own height and/or type, the user terminal may perform operations such as RRM measurement on the cells in the cell list. .
  • the user terminal may perform RRM measurement through the cell list provided by the base station, select a cell from the cell list, and then try to select the selected cell. Perform operations such as camping/cell selection/access.
  • the indication information may be access restriction information indicating an access restriction set by the base station to user terminals of different heights and/or types.
  • the access restriction information may be, for example, information about whether the base station allows user terminal access.
  • the base station may respectively use one or more bits as access restriction information, and respectively set different values for the one or more bits to indicate whether the base station allows each height and/or Or type of user terminal access.
  • the user terminal may determine, according to the access restriction information, whether the base station supports its own height and/or type of user terminal access.
  • the indication information may be capability category information indicating an access class (Access Classes/ACDC categories) set by the base station for different heights and/or types of user terminals.
  • the capability class information may be, for example, information about which classes of user terminals the base station allows.
  • the base station may set a set of access class prohibition (AC-barring) factors as the base station's capabilities for one or more user terminals of the height and/or type.
  • Category information where a set of AC-barring factors includes one or more AC-barring factors.
  • the AC-barring factor may be, for example, a capability class barring threshold to indicate a value that the actual value of the capability class factor computed by the user terminal should not exceed when the user terminal accesses the base station.
  • the base station can respectively set an AC-barring factor corresponding to each capability level.
  • the user terminal can calculate the actual value of the access class factor of the user terminal according to its own capability level, and determine whether the actual value of the operation is smaller than the received The value of the AC-barring factor set by the base station corresponding to the capability level of the user terminal, thereby determining whether the connection (RRC_CONNECTED) state can be entered from the idle (RRC_IDLE) state in the cell corresponding to the base station.
  • the indication information may be combination information of the capability category information and the access restriction information.
  • the user terminal may also receive cell list information generated by the base station, where the cell list is measured by user terminals of different heights and/or types.
  • a list of cells may be a list of cells that are measured by user terminals of different heights and/or types on one or more frequencies.
  • the cell list may be a list of cells of different heights and/or types of user terminals for intra-frequency measurements.
  • the cell list may be a cell that supports user equipment of various heights and/or types of radio resource management (RRM) measurements that can be used for co-frequency cell reselection or handover. List.
  • RRM radio resource management
  • the user terminal may select a cell in the cell list that matches its own height and/or type to perform RRM measurement for co-frequency cell reselection or handover.
  • the cell list may be a list of cells of different heights and/or types of user terminals performing intra-frequency measurement on one frequency, the one frequency may be the same as the carrier frequency of the cell corresponding to the base station. Frequency of.
  • the cell list may also be a list of cells of different heights and/or types of user terminals for inter-frequency measurements.
  • the base station can also generate frequency information of the inter-frequency measurement by the user terminals of different heights and/or types.
  • the cell list may be the available frequency of RRM measurements available for inter-frequency cell reselection or handover of user terminals of respective heights and/or types, and on each frequency List of supported cells.
  • the user terminal may select a frequency and cell list that matches its own height and/or type, and then perform inter-frequency RRM measurement on the corresponding frequency and cell to perform inter-frequency cell reselection or handover. .
  • the cell list may be a list of cells of different heights and/or types of user terminals performing inter-frequency measurements on one or more frequencies, the one or more frequencies may be corresponding to the base station The carrier frequency of the cell is different from one or more frequencies.
  • the user terminal performing the method 400 illustrated in FIG. 4 may be in an RRC-IDLE state.
  • the base station distinguishes user terminals of different heights and/or types, and generates indication information or a cell list for user terminals of different heights and/or types, so that the user terminal can receive from the user terminal. Selecting information in the indication information or cell list that matches its own height and/or type to selectively perform operations such as camping/cell selection/access, RRM measurement, etc., thereby improving different heights and/or types.
  • the communication between the user terminal and the base station ensures that user terminals of different heights and/or types can obtain good communication.
  • FIG. 5 shows a block diagram of a user terminal 500 in accordance with an embodiment of the present disclosure. Since the functions of the user terminal 500 are the same as those of the method 400 described above with reference to FIG. 4, a detailed description of the same content is omitted herein for the sake of brevity.
  • the user terminal 500 includes a receiving unit 510 configured to receive indication information indicating base station support capabilities for user terminals of different heights and/or types; and a selection unit 520 configured to Part of the indication information is selected to match the height and/or type of the self.
  • the user terminal 500 may also include other units than the above two units, but since these units are not related to the present disclosure, the description of these units is omitted.
  • the receiving unit 510 can receive a plurality of indication information, which are indication information of the base station for each height and/or type of user terminal, respectively. Then, the selection unit 520 may select one piece of indication information that matches the height and/or type of itself from the plurality of pieces of indication information. Then, the user terminal can determine the support capability of the base station for its own height and/or type of user terminal according to the selected indication information, and when the base station supports its own height and/or type of user terminal access, the user terminal can Performing operations such as camping/cell selection/access, and when the base station provides a list of cells that can be measured to the user terminal of its own height and/or type, the user terminal may perform operations such as RRM measurement on the cells in the cell list. .
  • indication information are indication information of the base station for each height and/or type of user terminal, respectively.
  • the selection unit 520 may select one piece of indication information that matches the height and/or type of itself from the plurality of pieces of indication information.
  • the user terminal can determine the support
  • the user terminal may perform RRM measurement through the cell list provided by the base station, select a cell from the cell list, and then try to select the selected cell. Perform operations such as camping/cell selection/access.
  • the indication information may be access restriction information indicating an access restriction set by the base station for user terminals of different heights and/or types.
  • the access restriction information may be, for example, information about whether the base station allows user terminal access. For example, for each height and/or type of user terminals, the base station may respectively use one or more bits as access restriction information, and respectively set different values for the one or more bits to indicate whether the base station allows each height and/or Or type of user terminal access. Then, after the base station sends the access restriction information to the user terminal, the user terminal may determine, according to the access restriction information, whether the base station supports its own height and/or type of user terminal access.
  • the indication information may be capability category information indicating the Access Classes/ACDC categories set by the base station for different heights and/or types of user terminals.
  • the capability class information may be, for example, information about which classes of user terminals the base station allows.
  • the base station may set a set of access class prohibition (AC-barring) factors as the base station's capabilities for one or more user terminals of the height and/or type.
  • Category information where a set of AC-barring factors includes one or more AC-barring factors.
  • the AC-barring factor may be, for example, a capability class barring threshold to indicate a value that the actual value of the capability class factor computed by the user terminal should not exceed when the user terminal accesses the base station.
  • the base station can respectively set an AC-barring factor corresponding to each capability level.
  • the user terminal can calculate the actual value of the access class factor of the user terminal according to its own capability level, and determine whether the actual value of the operation is smaller than the received The value of the AC-barring factor set by the base station corresponding to the capability level of the user terminal, thereby determining whether the connection (RRC_CONNECTED) state can be entered from the idle (RRC_IDLE) state in the cell corresponding to the base station.
  • the receiving unit 510 may further receive cell list information generated by the base station, where the cell list is performed by user terminals of different heights and/or types. A list of measured cells.
  • the cell list may be a list of cells of different heights and/or types of user terminals for intra-frequency measurements.
  • the cell list may be a cell that supports user equipment of various heights and/or types of radio resource management (RRM) measurements that can be used for co-frequency cell reselection or handover. List.
  • RRM radio resource management
  • the user terminal may select a cell in the cell list that matches its own height and/or type to perform RRM measurement for co-frequency cell reselection or handover.
  • the cell list may also be a list of cells of different heights and/or types of user terminals for inter-frequency measurements.
  • the base station can also generate frequency information of the inter-frequency measurement by the user terminals of different heights and/or types.
  • the cell list may be the available frequency of RRM measurements available for inter-frequency cell reselection or handover of user terminals of respective heights and/or types, and on each frequency List of supported cells.
  • the user terminal may select a frequency and cell list that matches its own height and/or type, and then perform inter-frequency RRM measurement on the corresponding frequency and cell to perform inter-frequency cell reselection or handover. .
  • the base station distinguishes user terminals of different heights and/or types, and generates indication information or a cell list for user terminals of different heights and/or types, so that the user terminal can receive from the user terminal. Selecting information in the indication information or cell list that matches its own height and/or type to selectively perform operations such as camping/cell selection/access, RRM measurement, etc., thereby improving different heights and/or types.
  • the communication between the user terminal and the base station ensures that user terminals of different heights and/or types can obtain good communication.
  • each functional block may be implemented by one device that is physically and/or logically combined, or two or more devices that are physically and/or logically separated, directly and/or indirectly (eg, This is achieved by a plurality of devices as described above by a wired and/or wireless connection.
  • the radio base station, the user terminal, and the like in one embodiment of the present invention can function as a computer that performs processing of the radio communication method of the present invention.
  • FIG. 6 is a diagram showing an example of a hardware configuration of a radio base station and a user terminal according to an embodiment of the present invention.
  • the wireless base station 300 and the user terminal 500 described above may be configured as a computer device 600 that physically includes a processor 610, a memory 620, a memory 630, a communication device 640, an input device 650, an output device 660, a bus 670, and the like.
  • the hardware configurations of the wireless base station 300 and the user terminal 500 may include one or more of the devices shown in the figures, or may not include some of the devices.
  • processor 610 only illustrates one, but can also be multiple processors.
  • the processing may be performed by one processor, or may be performed by one or more processors simultaneously, sequentially, or by other methods.
  • processor 610 can be installed by more than one chip.
  • the functions of the wireless base station 300 and the user terminal 500 are realized, for example, by reading predetermined software (programs) into hardware such as the processor 610 and the memory 620, thereby causing the processor 610 to perform operations on the communication device.
  • the communication by 640 is controlled, and the reading and/or writing of data in the memory 620 and the memory 630 is controlled.
  • the processor 610 causes the operating system to operate to control the computer as a whole.
  • the processor 610 may be constituted by a central processing unit (CPU) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like.
  • CPU central processing unit
  • the access unit, maintenance unit, and the like described above may be implemented by the processor 610.
  • the processor 610 reads out programs (program codes), software modules, data, and the like from the memory 630 and/or the communication device 640 to the memory 620, and executes various processes in accordance therewith.
  • programs program codes
  • the program a program for causing a computer to execute at least a part of the operations described in the above embodiments can be employed.
  • the access unit of the user terminal 500 can be implemented by a control program stored in the memory 620 and operated by the processor 610, and can be implemented similarly for other functional blocks.
  • the memory 620 is a computer readable recording medium, and may be, for example, a read only memory (ROM), an EPROM (Erasable Programmable ROM), an electrically programmable read only memory (EEPROM), or an electrically programmable read only memory (EEPROM). At least one of a random access memory (RAM) and other suitable storage medium is used.
  • the memory 620 may also be referred to as a register, a cache, a main memory (primary storage device), or the like.
  • the memory 620 can store an executable program (program code), a software module, and the like for implementing the wireless communication method according to the embodiment of the present invention.
  • the memory 630 is a computer readable recording medium, and may be, for example, a flexible disk, a soft (registered trademark) disk (floppy disk), a magneto-optical disk (for example, a CD-ROM (Compact Disc ROM), etc.). Digital Versatile Disc, Blu-ray (registered trademark) disc, removable disk, hard drive, smart card, flash device (eg card, stick, key driver), magnetic stripe, database At least one of a server, a server, and other suitable storage medium. Memory 630 may also be referred to as an auxiliary storage device.
  • the communication device 640 is hardware (transmission and reception device) for performing communication between computers through a wired and/or wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, and the like, for example.
  • the communication device 640 may include a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc., in order to implement, for example, Frequency Division Duplex (FDD) and/or Time Division Duplex (TDD).
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the above-described transmitting unit, receiving unit, and the like can be implemented by the communication device 640.
  • Input device 650 is an input device (eg, a keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside.
  • the output device 660 is an output device (for example, a display, a speaker, a light emitting diode (LED) lamp, etc.) that performs an output to the outside.
  • the input device 650 and the output device 660 may also be an integrated structure (for example, a touch panel).
  • each device such as the processor 610, the memory 620, and the like are connected by a bus 670 for communicating information.
  • the bus 670 may be composed of a single bus or a different bus between devices.
  • the wireless base station 300 and the user terminal 500 may include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), and a programmable logic device (PLD).
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • Hardware such as Field Programmable Gate Array (FPGA) can realize some or all of each functional block by this hardware.
  • processor 610 can be installed by at least one of these hardware.
  • the channel and/or symbol can also be a signal (signaling).
  • the signal can also be a message.
  • the reference signal may also be simply referred to as an RS (Reference Signal), and may also be referred to as a pilot (Pilot), a pilot signal, or the like according to applicable standards.
  • a component carrier may also be referred to as a cell, a frequency carrier, a carrier frequency, or the like.
  • the information, parameters, and the like described in the present specification may be expressed by absolute values, may be represented by relative values with predetermined values, or may be represented by other corresponding information.
  • wireless resources can be indicated by a specified index.
  • the formula or the like using these parameters may be different from those explicitly disclosed in the present specification.
  • the information, signals, and the like described in this specification can be expressed using any of a variety of different techniques.
  • data, commands, instructions, information, signals, bits, symbols, chips, etc. which may be mentioned in all of the above description, may pass voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of them. Combined to represent.
  • information, signals, and the like may be output from the upper layer to the lower layer, and/or from the lower layer to the upper layer.
  • Information, signals, etc. can be input or output via a plurality of network nodes.
  • Information or signals input or output can be stored in a specific place (such as memory) or managed by a management table. Information or signals input or output may be overwritten, updated or supplemented. The output information, signals, etc. can be deleted. The input information, signals, etc. can be sent to other devices.
  • the notification of the information is not limited to the mode/embodiment described in the specification, and may be performed by other methods.
  • the notification of the information may be through physical layer signaling (for example, Downlink Control Information (DCI), Uplink Control Information (UCI), and upper layer signaling (for example, radio resource control).
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • MAC Media Access Control
  • the physical layer signaling may be referred to as L1/L2 (Layer 1/Layer 2) control information (L1/L2 control signal), L1 control information (L1 control signal), and the like.
  • the RRC signaling may also be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.
  • the MAC signaling can be notified, for example, by a MAC Control Unit (MAC CE).
  • MAC CE MAC Control Unit
  • the notification of the predetermined information is not limited to being explicitly performed, and may be performed implicitly (for example, by not notifying the predetermined information or by notifying the other information).
  • the determination can be performed by a value (0 or 1) represented by 1 bit, or by a true or false value (boolean value) represented by true (true) or false (false), and can also be compared by numerical values ( For example, comparison with a predetermined value).
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, should be interpreted broadly to mean commands, command sets, code, code segments, program code, programs, sub- Programs, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, steps, functions, and the like.
  • software, commands, information, and the like may be transmitted or received via a transmission medium.
  • a transmission medium For example, when using wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) from a website, server, or other remote source
  • wired technology coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • base station (BS, Base Station)", “radio base station”, “eNB”, “gNB”, “cell”, “sector”, “cell group”, “carrier”, and “component carrier”
  • BS Base Station
  • radio base station eNB
  • gNB gNodeB
  • cell a cell
  • cell group a carrier
  • component carrier a component carrier
  • the base station is sometimes referred to by a fixed station, a NodeB, an eNodeB (eNB), an access point, a transmission point, a reception point, a femto cell, a small cell, and the like.
  • a base station can accommodate one or more (eg, three) cells (also referred to as sectors). When the base station accommodates multiple cells, the entire coverage area of the base station can be divided into a plurality of smaller areas, and each smaller area can also pass through the base station subsystem (for example, a small indoor base station (RFH, remote head (RRH), Remote Radio Head))) to provide communication services.
  • the term "cell” or “sector” refers to a portion or the entirety of the coverage area of a base station and/or base station subsystem that performs communication services in the coverage.
  • Mobile stations are also sometimes used by those skilled in the art as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless Terminals, remote terminals, handsets, user agents, mobile clients, clients, or several other appropriate terms are used.
  • the wireless base station in this specification can also be replaced with a user terminal.
  • each mode/embodiment of the present invention can be applied to a configuration in which communication between a radio base station and a user terminal is replaced with communication between a plurality of user-to-device (D2D) devices.
  • D2D user-to-device
  • the function of the above-described wireless base station 300 can be regarded as a function of the user terminal 500.
  • words such as "upstream” and "downstream” can also be replaced with "side”.
  • the uplink channel can also be replaced with a side channel.
  • the user terminal in this specification can also be replaced with a wireless base station.
  • the function of the user terminal 500 described above can be regarded as a function of the wireless base station 300.
  • the node may be considered, for example, but not limited to, a Mobility Management Entity (MME), a Serving-Gateway (S-GW, etc.), or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • LTE-B Long-Term Evolution
  • LTE-Beyond Long-Term Evolution
  • Super 3rd generation mobile communication system SUPER 3G
  • IMT-Advanced advanced international mobile communication
  • 4th generation mobile communication system (4G, 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • future radio access FAA
  • new radio access technology New-RAT, Radio Access Technology
  • NR New Radio Access Technology
  • NX new radio access
  • FX Next Generation Wireless Access
  • GSM Registered trademark
  • GSM Global System for Mobile Communications
  • CDMA2000 Code Division Multiple Access 2000
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra Wideband
  • any reference to a unit using the names "first”, “second”, etc., as used in this specification, does not fully limit the number or order of the units. These names can be used in this specification as a convenient method of distinguishing between two or more units. Thus, reference to a first element and a second element does not mean that only two elements may be employed or that the first element must prevail in the form of the second unit.
  • determination used in the present specification sometimes includes various actions. For example, regarding “judgment (determination)", calculation, calculation, processing, deriving, investigating, looking up (eg, table, database, or other) may be performed. Search in the data structure, ascertaining, etc. are considered to be “judgment (determination)”. Further, regarding “judgment (determination)”, reception (for example, receiving information), transmission (for example, transmission of information), input (input), output (output), and access (for example) may also be performed (for example, Accessing data in memory, etc. is considered to be “judgment (determination)”.
  • judgment (determination) it is also possible to consider “resolving”, “selecting”, selecting (choosing), establishing (comparing), comparing (comparing), etc. as “judging (determining)”. That is to say, regarding "judgment (determination)", several actions can be regarded as performing "judgment (determination)".
  • connection means any direct or indirect connection or combination between two or more units, This includes the case where there is one or more intermediate units between two units that are “connected” or “coupled” to each other.
  • the combination or connection between the units may be physical, logical, or a combination of the two.
  • connection can also be replaced with "access”.
  • two units may be considered to be electrically connected by using one or more wires, cables, and/or printed, and as a non-limiting and non-exhaustive example by using a radio frequency region.
  • the electromagnetic energy of the wavelength of the region, the microwave region, and/or the light is "connected” or "bonded” to each other.

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Abstract

提供了一种无线通信方法以及相应的基站、用户终端。由基站执行的无线通信方法包括：生成指示信息，该指示信息指示基站对不同高度和/或类型的用户终端的支持能力；以及将该指示信息发送给基站管理的小区内的用户终端。由用户终端执行的无线通信方法包括：接收指示信息，该指示信息指示基站对不同高度和/或类型的用户终端的支持能力；以及从该指示信息中选择与自身的高度和/或类型相匹配的部分信息。

Description

无线通信方法以及相应的基站、用户终端 技术领域
本公开涉及移动通信领域，并且更具体地涉及一种无线通信方法以及相应的基站、用户终端。
背景技术
近年来，无人机(drone或aerial或UAV(unmanned aerial vehicle))获得了广泛使用，而诸如长期演进(LTE)网络的无线通信网络由于其良好的覆盖性能，可以用于支持无人机业务，例如在无人机飞行期间与无人机通信，或者支持地面控制器/人员与无人机通过无线网络通信。在这里，诸如无人机之类的能够在空中飞行且能够通过无线通信网络与基站通信的用户终端可以被称为飞行用户终端。
与地面用户终端相比，飞行用户终端具有不同的特点。首先，飞行用户终端受到更多的限制，例如飞行限制，包括高度限制、速度限制和/或是否允许飞行等，而且不同地区的限制不同。此外，与地面用户终端相比，飞行用户终端由于其速度和高度而具有更高的移动性。而且，在起飞和飞行期间，飞行用户终端的高度时常发生变化，从而面临可变的无线传播条件。因此，相对于地面用户终端，飞行用户终端将处于更复杂的无线环境中，而且，由于处于空中，飞行用户终端可能给无线通信网络带来更强的干扰。飞行用户终端的上述特点对其与基站之间的通信提出了新的挑战。
因此，需要对包括地面用户终端和飞行用户终端的无线通信网络进行增强，以便地面用户终端和飞行用户终端在无线通信网络中均获得良好的通信性能。
发明内容
根据本公开的一个实施例，提供了一种由基站执行的无线通信方法。该方法包括：生成指示信息，所述指示信息指示所述基站对不同高度和/或类型的用户终端的支持能力；以及将所述指示信息发送给 所述基站管理的小区内的用户终端。
根据本公开的另一实施例，提供了一种基站。该基站包括：生成单元，被配置为生成指示信息，所述指示信息指示所述基站对不同高度和/或类型的用户终端的支持能力；以及发送单元，被配置为将所述指示信息发送给所述基站管理的小区内的用户终端。
根据本公开的另一实施例，提供了一种由用户终端执行的无线通信方法。该方法包括：接收指示信息，所述指示信息指示所述基站对不同高度和/或类型的用户终端的支持能力；以及从所述指示信息中选择与所述自身的高度和/或类型相匹配的部分信息。
根据本公开的另一实施例，提供了一种用户终端。该用户终端包括：接收单元，被配置为接收指示信息，所述指示信息指示所述基站对不同高度和/或类型的用户终端的支持能力；以及选择单元，被配置为从所述指示信息中选择与所述自身的高度和/或类型相匹配的部分信息。
附图说明
通过结合附图对本公开实施例进行更详细的描述，本公开的上述以及其它目的、特征和优势将变得更加明显。附图用来提供对本公开实施例的进一步理解，并且构成说明书的一部分，与本公开实施例一起用于解释本公开，并不构成对本公开的限制。在附图中，相同的参考标号通常代表相同部件或步骤。
图1是可以在其中应用本公开的实施例的无线通信系统的示意图。
图2是根据本公开实施例的由基站执行的无线通信方法的流程图。
图3是根据本公开实施例的基站的框图。
图4是根据本公开实施例的由用户终端执行的无线通信方法的流程图。
图5是根据本公开实施例的用户终端的框图。
图6是根据本公开实施例的基站和用户终端的硬件结构的示意 图。
具体实施方式
为了使得本公开的目的、技术方案和优点更为明显，下面将参照附图详细描述根据本公开的示例实施例。
首先，参照图1来描述可在其中应用本公开的实施例的无线通信系统。该无线通信系统可以是LTE系统，也可以是任何其他类型的无线通信系统，比如LTE-A系统或5G系统等。在下文中，以LTE系统为例来描述本公开的实施例，但应当认识到，以下描述也可以适用于其他类型的无线通信系统。
如图1所示，无线通信系统100可以包括基站(BS)110和用户终端120，该基站110是用户终端120的服务基站。用户终端120可以是能够在空中飞行并且能够与基站110通信的飞行器(AV)，例如无人机(drone或UAV，比如基于3GPP规范Rel.15的无人机、或基于3GPP规范Rel.15的增强无人机等)。在这里，将能够在空中飞行且能够与基站进行无线通信的用户设备或用户终端称为飞行用户终端(UT)，所述飞行用户终端也可以可互换地称为飞行用户设备、空中用户终端、空中用户设备等。此外，用户终端120还可以是非飞行用户终端，比如地面用户终端。需要认识到，尽管在图1中示出了一个基站和一个用户终端，但这只是示意性的，该无线通信系统可以包括多个基站和/或多个用户终端，相应地，该无线通信系统可以包括多个小区。此外，在下文中，有时候可互换地使用小区和基站。
在无线通信系统的多个基站中，一些基站可以仅支持地面用户终端或飞行用户终端，另一些基站可以支持地面用户终端和飞行用户终端。此外，对于支持飞行用户终端的某一基站，可能仅支持某些高度的飞行用户终端。此外，基站对地面用户终端和/或飞行用户终端的支持也可能是变化的，例如，可以随着无线通信系统中的用户终端数量的变化而相应地变化。例如，当无线通信系统中的飞行用户终端的数量增加时，不支持飞行用户终端的基站可以被配置为支持飞行用户终端。因此，为了优化基站和用户终端之间的通信，在本公开的实施例 中，基站可以向用户终端指示基站对具有不同属性(例如，高度、类型、运动速度、能力等级等)的用户终端的支持能力，以便用户终端确定是否可以接入基站。此外，在本公开的实施例中，基站也可以向用户终端发送具有不同属性的用户终端可进行测量的小区的列表，以指示用户终端只需测量列表中的小区。
在本公开中，“高度”是指用户终端相对于参照物(例如，地面)的高度；“类型”是指用户终端的分类，例如，用户终端属于飞行用户终端或非飞行用户终端(比如地面用户终端)；“运动速度”是指用户终端相对于参照物(例如，地面)在单位时间内通过的位移；“能力等级”是指用户终端能够支持的通信能力或处理能力的等级，例如，用户终端能够支持的数据处理能力、最大的空分复用数目、调制编码能力等的等级。
下面，以基站向用户终端指示基站对不同高度和/或类型的用户终端的支持能力以及基站向用户终端发送不同高度和/或类型的用户终端可进行测量的小区的列表为例来描述本公开。但应该理解，基站还可以向用户终端指示基站对具有除了高度、类型之外的其他属性的用户终端的支持能力，以及基站还可以向用户终端发送具有除了高度、类型之外的其他属性的用户终端可进行测量的小区的列表。
接下来，参照图2来描述根据本公开实施例的由基站执行的无线通信方法。图2是根据本公开实施例的由基站执行的无线通信方法200的流程图。如图2所示，在步骤S201中，基站生成指示信息，该指示信息指示基站对不同高度和/或类型的用户终端的支持能力。在本公开中，基站对用户终端的支持能力例如可以是基站支持用户终端，或者也可以是基站不支持用户终端。
在第一实现方式中，在步骤S201中，基站可以生成指示信息，该指示信息指示基站对不同高度的用户终端的支持能力。
在该实现方式中，基站可以确定一个或多个高度范围，然后生成指示信息，该指示信息指示基站对高度在该一个或多个高度范围内的用户终端的支持能力。例如，基站可以预先确定3个高度范围，分别为第一高度范围(0-50米)、第二高度范围(50-100米)、第三高度范 围(100-200米)，在基站只支持高度在第一高度范围内的用户终端的情况下，基站可以分别生成指示基站支持高度在第一高度范围内的用户终端的指示信息、指示基站不支持高度在第二高度范围内的用户终端的指示信息以及指示基站不支持高度在第三高度范围内的用户终端的指示信息。
需要认识到，对于每个高度范围，基站不需要都生成相应的指示信息。例如，基站可以只生成指示基站支持高度在一个或多个高度范围内的用户终端的指示信息，比如，基站可以只生成指示基站支持高度在第一高度范围内的用户终端的指示信息。或者，基站可以只生成指示基站不支持高度在一个或多个高度范围内的用户终端的指示信息，比如基站可以只生成指示基站不支持高度在第二高度范围内的用户终端的指示信息以及指示基站不支持高度在第三高度范围内的用户终端的指示信息。
可替换地，在该实现方式中，基站还可以生成指示信息，该指示信息指示基站对特定高度的用户终端的支持能力。例如，在基站支持高度为150米的用户终端的情况下，基站可以生成指示基站支持高度为150米的用户终端的指示信息。又例如，在基站不支持高度为250米的用户终端的情况下，基站可以生成指示基站不支持高度为250米的用户终端的指示信息。
在第二实现方式中，在步骤S201中，基站可以生成指示信息，该指示信息指示基站对不同类型的用户终端的支持能力。
例如，基站可以预先确定用户终端的一种或多种类型，然后生成指示信息，该指示信息指示基站对该一种或多种类型的用户终端的支持能力。例如，基站可以预先确定2种用户终端，分别为飞行用户终端或非飞行用户终端，在基站只支持飞行用户终端的情况下，基站可以生成指示基站支持飞行用户终端的指示信息以及指示基站不支持非飞行用户终端的指示信息。
在第三实现方式中，在步骤S201中，基站可以生成指示信息，该指示信息指示基站对不同高度和类型的用户终端的支持能力。
在该实现方式中，基站可以确定一个或多个高度范围以及用户终 端的一种或多种类型，然后生成指示信息，该指示信息指示基站对高度在该一个或多个高度范围内的各种用户终端的支持能力。例如，基站可以预先确定3个高度范围，分别为第一高度范围(0-50米)、第二高度范围(50-100米)、第三高度范围(100-200米)，以及确定2种用户终端，分别为飞行用户终端或非飞行用户终端，在基站只支持高度在第二高度范围内的飞行用户终端的情况下，基站可以分别生成指示基站不支持高度在第一高度范围内的飞行用户终端的指示信息、指示基站不支持高度在第一高度范围内的非飞行用户终端的指示信息、指示基站支持高度在第二高度范围内的飞行用户终端的指示信息、指示基站不支持高度在第二高度范围内的非飞行用户终端的指示信息、指示基站不支持高度在第三高度范围内的飞行用户终端的指示信息以及指示基站不支持高度在第三高度范围内的非飞行用户终端的指示信息。
可替换地，在该实现方式中，基站还可以生成指示信息，该指示信息指示基站对特定高度的特定用户终端的支持能力。例如，在基站支持高度为150米的飞行用户终端的情况下，基站可以生成指示基站支持高度为150米的飞行用户终端的指示信息。又例如，在基站不支持高度为250米的飞行用户终端的情况下，基站可以生成指示基站不支持高度为250米的飞行用户终端的指示信息。
应该理解，虽然上面的三种实现方式描述了基站可以针对多个高度的用户终端生成多个指示信息且各个指示信息分别指示基站对各个高度的用户终端的支持能力、或针对多种用户终端生成多个指示信息且各个指示信息分别指示基站对各类用户终端的支持能力、或针对多个高度的多种用户终端生成多个指示信息且各个指示信息分别指示基站对各个高度的各类用户终端的支持能力，但本公开不限于此。根据其他实现方式，基站可以针对多个高度的用户终端生成一个指示信息且该一个指示信息可以指示基站对多个高度的用户终端的支持能力、或针对多种用户终端生成一个指示信息且该一个指示信息可以指示基站对各类用户终端的支持能力、或针对多个高度的多种用户终端生成一个指示信息且该一个指示信息可以指示基站对各个高度的 各类用户终端的支持能力等。
还应该理解，虽然上面的三种实现方式中描述了基站只能够支持一个高度/高度范围的用户终端、或只能够支持一种用户终端、或只能够支持一个高度/高度范围的一种用户终端，但本公开并不限于此。根据本公开的其他示例，基站可以支持两个或两个以上的高度/高度范围的用户终端、或可以支持两种或两种以上的用户终端、或可以支持一个高度/高度范围的两种或两种以上的用户终端、或可以支持两个高度/高度范围的一种用户终端等。
对于步骤S201中的指示信息，在第一示例中，指示信息可以是指示基站对不同高度和/或类型的用户终端设定的接入限制的接入限制信息。例如，在上述第一实现方式中，指示信息可以是指示基站对不同高度的用户终端设定的接入限制的接入限制信息。又例如，在上述第二实现方式中，指示信息可以是指示基站对不同类型的用户终端设定的接入限制的接入限制信息。又例如，在上述第三实现方式中，指示信息可以是指示基站对不同高度和类型的用户终端设定的接入限制的接入限制信息。
在该示例中，接入限制信息例如可以是关于基站是否允许用户终端接入的信息。在基站支持用户终端时，接入限制信息例如可以是基站允许用户终端驻留/小区选择/重选/接入的信息；在基站不支持用户终端时，接入限制信息例如可以是基站不允许用户终端驻留/小区选择/重选/接入的信息。对于各个高度和/或类型的用户终端，基站可以分别采用一个或多个比特作为接入限制信息，并分别对该一个或多个比特设置不同的值来表示基站是否允许各个高度和/或类型的用户终端接入。然后，当基站将该接入限制信息发送给用户终端后，用户终端可以根据该接入限制信息确定基站是否支持自身的高度和/或类型的用户终端接入。
例如，对于某一高度和/或类型的用户终端，接入限制信息可以是参数“cellBarred”，参数“cellBarred”占用1个比特且参数“cellBarred”所占用的比特的不同取值表示基站是否允许某一高度和/或类型的用户终端驻留/小区选择/重选/接入。比如，当参数“cellBarred”取值为第 一值(比如0即禁止(barred))时表示基站不允许该高度和/或类型的用户终端驻留/小区选择/重选/接入；当参数“cellBarred”取值为第二值(比如1即未禁止(notbarred))时表示基站允许该高度和/或类型的用户终端驻留/小区选择/重选/接入。然后，当基站将参数“cellBarred”发送给用户终端后，用户终端可以根据参数“cellBarred”的取值确定基站对该高度和/或类型的用户终端的接入限制，以便用户终端确定是否可以对该基站执行小区选择/重选/接入等操作。
可以理解，这里的第一值为0时表示基站完全禁止该高度和/或类型的用户终端驻留/小区选择/重选/接入，而第二值为1时表示基站完全支持该高度和/或类型的用户终端驻留/小区选择/重选/接入。然而，需要认识到，第一值和第二值的取值可以不是0或1，而可以是0和1之间的任意实数，以表示基站并不完全禁止或并不完全支持某一高度和/或类型的用户终端驻留/小区选择/重选/接入。例如，第一值可以是0.5，以表示某一高度和/或类型的用户终端驻留/小区选择/重选/接入基站的概率为50％。
又例如，对于某一高度和/或类型的用户终端，接入限制信息可以是参数“cellBarred”和参数“cellReservedForOperatorUse”，参数“cellBarred”和参数“cellReservedForOperatorUse”占用多个比特，其中参数“cellBarred”表示基站是否允许某一高度和/或类型的用户终端驻留/小区选择/重选/接入，以及当参数“cellBarred”表示基站未禁止某一高度和/或类型的用户终端驻留/小区选择/重选/接入时，参数“cellReservedForOperatorUse”进一步表示基站是否允许某一高度和/或类型的用户终端驻留/小区选择/重选/接入。上文已经描述了参数“cellBarred”，在此不再赘述。而参数“cellReservedForOperatorUse”是类似的，也可以占用1个比特，并且当参数“cellReservedForOperatorUse”的取值为第三值(比如0即未保留(not reserved))时表示基站允许该高度和/或类型的用户终端驻留/小区选择/重选/接入；当参数“cellBarred”的取值为第四值(比如1即保留(reserved))时表示基站允许该高度和/或类型的、接入类别为11或15的用户终端驻留/小区选择/重选/接入。
同样地，需要认识到，第三值和第四值的取值可以不是0或1，而可以是0和1之间的任意实数，以表示基站并不完全保留或完全保留某一高度和/或类型的用户终端驻留/小区选择/重选/接入。例如，第三值可以是0.5，以表示基站保留某一高度和/或类型的用户终端驻留/小区选择/重选/接入的概率为50％。
也就是说，在该示例中，对于每个高度和/或类型的用户终端，基站可以采用一组参数(“cellBarred”和“cellReservedForOperatorUse”中的至少一个)作为接入限制信息。因此，基站可以为各个高度和/或类型的用户终端分别设定各组参数作为相应的接入限制信息。然后，基站可以将各组参数发送给用户终端，以便用户终端确定基站对自身高度和/或类型的用户终端的接入限制。基站在将各组参数发送给用户终端时可以通过第一系统信息进行发送，这将在后面的步骤S202中进行描述。
对于步骤S201中的指示信息，在第二示例中，指示信息可以是指示基站对不同高度和/或类型的用户终端设定的可接入类别(Access Classes/ACDC categories)的能力类别信息。例如，在上述第一实现方式中，指示信息可以是指示基站对不同高度的用户终端设定的可接入类别的能力类别信息。又例如，在上述第二实现方式中，指示信息可以是指示基站对不同类型的用户终端设定的可接入类别的能力类别信息。又例如，在上述第三实现方式中，指示信息可以是指示基站对不同高度和类型的用户终端设定的可接入类别的能力类别信息。
在该示例中，能力类别信息例如可以是关于基站允许哪些类别的用户终端接入的信息。在基站支持用户终端时，能力类别信息例如可以是基站所允许接入的用户终端的类别信息；在基站不支持用户终端时，接入限制信息例如可以是基站不允许接入的用户终端的类别信息。对于某一高度和/或类型的一个或多个用户终端，基站可以设定一组接入类别禁止(AC-barring)因子作为基站对该高度和/或类型的一个或多个用户终端的能力类别信息，其中一组AC-barring因子包括一个或多个AC-barring因子。AC-barring因子例如可以是能力类别禁止阈值，以指示在用户终端接入基站时该用户终端所运算的能力类别因子 的实际值不应超过的数值。对于某一高度和/或类型的具有不同能力等级的用户终端，基站可以分别设定与每种能力等级相对应的AC-barring因子。然后，当基站将该能力类别信息发送给用户终端后，用户终端可以根据自身的能力等级运算该用户终端的接入类别因子的实际值，并判断该运算的实际值是否小于接收到的、由基站设定的与该用户终端的能力等级相对应的AC-barring因子的取值，从而判断是否可以在与该基站相对应的小区中从空闲(RRC_IDLE)状态进入连接(RRC_CONNECTED)状态。例如，如果判断结果为是，则该用户终端可以在与该基站相对应的小区中从空闲状态进入连接状态；如果判断结果为否，则该用户终端不能在与该基站相对应的小区中从空闲状态进入连接状态。可以理解，当用户终端选择小区以进行驻留时，用户终端可以忽略该信息。这里的“AC-barring”因子的取值可以是实数，例如，0、1或者0和1之间的实数，本公开对此不作限定。
也就是说，在该示例中，对于每个高度和/或类型的一个或多个用户终端，基站可以采用一组AC-barring因子作为能力类别信息。因此，基站可以为各个高度和/或类型的一个或多个用户终端分别设定一组AC-barring因子作为相应的能力类别信息。然后，基站可以将各组AC-barring因子发送给用户终端，以便用户终端确定基站是否允许自身类别的用户终端接入。基站在将各组AC-barring因子发送给用户终端时可以通过第二系统信息进行发送，这将在后面的步骤S202中进行描述。
对于步骤S201中的指示信息，在第三示例中，指示信息可以是能力类别信息和接入限制信息的组合信息。例如，对于某一高度和/或类型的用户终端，当指示信息中的接入限制信息是参数“cellBarred”且参数“cellBarred”的取值表示基站允许该高度和/或类型的用户终端驻留/小区选择/重选/接入时，指示信息中的能力类别信息可以进一步指示基站允许该高度和/或类型的用户终端中的哪些类别的用户终端接入。又例如，对于某一高度和/或类型的用户终端，当指示信息中的接入限制信息是参数“cellBarred”和参数“cellReservedForOperatorUse”且参数“cellReservedForOperatorUse”的取值表示基站保留该高度和/ 或类型的用户终端驻留/小区选择/重选/接入时，指示信息中的能力类别信息可以进一步指示基站允许该高度和/或类型的用户终端中的哪些类别的用户终端接入。
除了可以生成指示基站对不同高度和/或类型的用户终端的支持能力的指示信息以外，基站还可以生成小区列表信息，该小区列表是不同高度和/或类型的用户终端进行测量的小区的列表。具体地，该小区列表可以是不同高度和/或类型的用户终端在一个或多个频率上进行测量的小区的列表。例如，在上文的第一实现方式中，小区列表可以是不同高度的用户终端在一个或多个频率上进行测量的小区的列表。又例如，在上文的第二实现方式中，小区列表可以是不同类型的用户终端在一个或多个频率上进行测量的小区的列表。又例如，在上文的第三实现方式中，小区列表可以是不同高度和类型的用户终端在一个或多个频率上进行测量的小区的列表。需要认识到，基站可以在生成指示信息时生成小区列表信息，也可以在生成指示信息后生成小区列表信息或者在生成指示信息前生成小区列表信息。
在该示例中，小区列表可以是不同高度和/或类型的用户终端进行同频测量的小区的列表。例如，对于多个高度和/或类型的用户终端，小区列表可以是可用于同频小区重选或切换的无线资源管理(RRM)测量的、支持各个高度和/或类型的用户终端的小区的列表。用户终端在接收到这样的信息后，可以选择与自身的高度和/或类型相匹配的小区列表中的小区进行RRM测量，以进行同频小区重选或切换。此外，在这种情况下，小区列表可以是不同高度和/或类型的用户终端在一个频率上进行同频测量的小区的列表，所述一个频率可以是与基站相对应的小区的载波频率相同的频率。
可替换地，在该示例中，小区列表还可以是不同高度和/或类型的用户终端进行异频测量的小区的列表。在这种情况下，基站还可以生成不同高度和/或类型的用户终端进行异频测量的频率信息。例如，对于多个高度和/或类型的用户终端，小区列表可以是可用于各个高度和/或类型的用户终端的异频小区重选或切换的RRM测量的可用频率、以及在每个频率上支持的小区列表。用户终端在接收到这样的 信息后，可以选择与自身的高度和/或类型相匹配的频率和小区列表，然后执行相应频率和小区上的异频RRM测量，以进行异频小区重选或切换。此外，在这种情况下，小区列表可以是不同高度和/或类型的用户终端在一个或多个频率上进行异频测量的小区的列表，所述一个或多个频率可以是与基站相对应的小区的载波频率不同的一个或多个频率。
这里所描述的“小区列表”可以是基站维护的相邻小区列表(Neighbor cell list,NCL)中的一部分或全部小区，或者是基站维护的邻区关系表(Neighbor relation table,NRT)中的一部分或全部小区。对于不同高度和/或类型的用户终端，基站可以从NCL或NRT中选择数量不同的小区以通知用户进行RRM测量。例如，基站可以根据用户终端的位置、相邻小区的负载状况和/或通信系统的网络状况等从NCL或NRT中选择不同数量的小区以通知用户进行RRM测量。比如，当飞行用户终端所处的高度范围较低时，由于该飞行用户终端与基站之间的障碍物变多，因此该高度范围内的飞行用户终端可能不具备视距传输的通信条件，其可能面临与地面用户终端相同的传输环境，因此对于该高度范围内的飞行用户终端，可以选择较多的小区以便该飞行用户终端进行RRM测量，以保证该飞行用户终端获得良好的通信。又比如，当飞行用户终端所处的高度范围较高时，由于该飞行用户终端与基站之间的障碍物变少，因此只需要较少的基站就能保证该飞行用户终端获得良好的通信，因此可以选择较少的小区以便该飞行用户终端进行RRM测量。
此外，应该理解，对于不同高度和/或类型的用户终端，基站也可以从NCL或NRT中选择数量相同的小区以进行RRM测量。
此外，对于不同高度和/或类型的用户终端，基站还可以从NCL或NRT中选择不同的小区以进行RRM测量，所述不同的小区的数量可以相同或不同。例如，基站可以根据用户终端的高度、运动方向等从NCL或NRT中选择地理位置不同的小区以进行RRM测量，且该地理位置不同的小区的数量可以相同或不同。
上面已经描述了基站生成指示基站对不同高度和/或类型的用户 终端的支持能力的指示信息以及基站向不同高度和/或类型的用户终端提供的可进行测量的小区的列表。根据本公开的其他示例，对于用户终端的某一高度和/或类型，基站在不同时刻生成的指示信息或小区列表可以是不相同的。例如，无线通信系统中的用户终端的数量在不同的时刻可能是不同的，当在某一时刻系统中的飞行用户终端的数量增加时，原本不支持飞行用户终端的基站可以被配置为支持飞行用户终端，则该基站可以生成新的指示信息以指示该基站支持飞行用户终端。当然，可以理解，基站也可以生成新的小区列表。
此外，在上面的描述中，基站是针对不同高度和/或类型的用户终端生成的指示信息或小区列表，然而本公开不限于此。基站可以针对不同属性的用户终端生成指示信息或小区列表，其中属性包括用户终端的高度、类型、运动速度、能力等级等中的任意一个或多个。
然后，在步骤S202中，基站将指示信息发送给基站管理的小区内的用户终端。基站管理的小区可以是一个或多个，例如，可以是一个宏小区，或者可以是一个宏小区与多个小小区的组合。
根据本公开的一个示例，在步骤S202中，基站可以向其管理的小区内的用户终端广播在步骤S201中生成的一个或多个指示信息。例如，基站可以在广播信道中向其管理的小区内的用户终端广播在步骤S201中生成的指示信息。相应地，基站管理的小区内的用户终端都可以接收到基站对不同高度和/或类型的用户终端的指示信息。然后，基站管理的小区内的用户终端可以从接收到的指示信息中选择与自身的高度和/或类型相匹配的部分信息，以便进行驻留/小区选择/重选/接入、RRM测量等。
根据本公开的另一示例，基站可以通过系统信息将指示信息广播给基站管理的小区内的用户终端。例如，在上文已经提到，当指示信息是指示基站对不同高度和/或类型的用户终端的接入限制的接入限制信息时，基站可以通过第一系统信息将接入限制信息发送给用户终端；当指示信息是指示基站对不同高度和/或类型的用户终端的可接入类别的能力类别信息时，基站可以通过第二系统信息将能力类别信息发送给用户终端。
在该示例中，基站可以通过一个或多个系统信息块(SIB)将指示信息作为系统信息广播给基站管理的小区内的用户终端。在LTE系统中，已经定义了SIB1至SIB13来发送各种系统信息。然而，由于LTE系统并没有区分用户终端的高度和/或类型，因此，基站向不同高度和/或类型的用户终端发送的系统信息是相同的。而本公开中，为了改善不同高度和/或类型的用户终端与基站的通信，对不同高度和/或类型的用户终端进行了区分，并且基站在步骤S201中生成了对不同高度和/或类型的用户终端的指示信息。因此，在本公开中，基站可以对LTE系统中的SIB进行修改以发送在步骤S201中生成的指示信息。
例如，基站可以对LTE系统中的SIB增加一个或多个比特，且该一个或多个比特的不同取值以标识该SIB对应于不同高度和/或类型的用户终端。上文已经提到，当指示信息是指示基站对不同高度和/或类型的用户终端的接入限制的接入限制信息时，基站可以为各个高度和/或类型的用户终端分别设定一组参数(例如，“cellBarred”和“cellReservedForOperatorUse”)作为相应的接入限制信息，在这种情况下，基站可以为各个高度和/或类型的用户终端分别确定SIB1。而且，所确定的SIB1不仅可以包括基站对该高度和/或类型的用户终端设定的该组参数(例如，“cellBarred”和“cellReservedForOperatorUse”)，还可以包括标识信息，其中该标识信息可以标识该SIB1对应于该高度和/或类型的用户终端。
此外，上文也已经提到，当指示信息是指示基站对不同高度和/或类型的用户终端的可接入类别的能力类别信息时，基站可以为各个高度和/或类型的用户终端分别设定一组AC-barring因子作为能力类别信息，在这种情况下，基站可以为各个高度和/或类型的用户终端分别确定SIB2。而且，所确定的SIB2不仅可以包括基站对该高度和/或类型的用户终端设定的该组AC-barring因子，还可以包括标识信息，其中该标识信息可以标识该SIB2对应于该高度和/或类型的用户终端。
需要认识到，基站也可以不对LTE系统中的SIB进行修改，而是定义一个或多个新的SIB来发送在步骤S201中生成的指示信息。
根据本公开的另一示例，在步骤S202中，基站可以通过无线资源控制(RRC)信令将步骤S201中生成的指示信息发送给基站管理的小区内的用户终端。相应地，用户终端可以通过接收RRC信令来接收基站所生成的指示信息。可替换地，在该示例中，基站也可以组合使用系统信息和RRC信令来发送步骤S201中生成的指示信息，相应地，用户终端可以通过接收系统信息和RRC信令的组合来接收基站所生成的指示信息。
此外，根据本公开的其他示例，上文所提到的由基站生成的小区列表也可以通过上面示例所描述的方式发送给用户终端。例如，基站可以向其管理的小区内的用户终端广播所生成的小区列表，比如基站可以通过系统信息将小区列表广播给基站管理的小区内的用户终端。又例如，基站还可以通过RRC信令将所生成的小区列表发送给基站管理的小区内的用户终端。又例如，基站还可以组合使用系统信息和RRC信令来发送所生成的小区列表。
通过本公开的上述实施例，基站对不同高度和/或类型的用户终端进行了区分，并且生成了针对不同高度和/或类型的用户终端的指示信息或小区列表，使得用户终端可以从接收到的指示信息或小区列表中选择与自身的高度和/或类型相匹配的部分信息，以选择性地进行驻留/小区选择/接入、RRM测量等操作，从而改善了不同高度和/或类型的用户终端与基站的通信，保证了不同高度和/或类型的用户终端可以获得良好的通信。
下面，参照图3来描述根据本公开实施例的执行图2所示的方法200的基站。图3示出了根据本公开实施例的基站300的框图。由于基站300的功能与在上文中参照图2描述的方法200的细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。
如图3所示，基站300包括生成单元310，被配置为生成指示信息，该指示信息指示基站对不同高度和/或类型的用户终端的支持能力；以及发送单元320，被配置为将该指示信息发送给基站管理的小区内的用户终端。基站300还可以包括除了上述两个单元之外的其他单元，但由于这些单元与本公开无关，因此省略了这些单元的描述。
在本公开中，基站对用户终端的支持能力例如可以是基站支持用户终端，或者也可以是基站不支持用户终端。
在第一实现方式中，生成单元310可以生成指示信息，该指示信息指示基站对不同高度的用户终端的支持能力。
在该实现方式中，生成单元310可以确定一个或多个高度范围，然后生成指示信息，该指示信息指示基站对高度在该一个或多个高度范围内的用户终端的支持能力。例如，生成单元310可以预先确定3个高度范围，分别为第一高度范围(0-50米)、第二高度范围(50-100米)、第三高度范围(100-200米)，在基站只支持高度在第一高度范围内的用户终端的情况下，生成单元310可以分别生成指示基站支持高度在第一高度范围内的用户终端的指示信息、指示基站不支持高度在第二高度范围内的用户终端的指示信息以及指示基站不支持高度在第三高度范围内的用户终端的指示信息。
需要认识到，对于每个高度范围，生成单元310不需要都生成相应的指示信息。例如，生成单元310可以只生成指示基站支持高度在一个或多个高度范围内的用户终端的指示信息，比如，生成单元310可以只生成指示基站支持高度在第一高度范围内的用户终端的指示信息。又例如，生成单元310可以只生成指示基站不支持高度在一个或多个高度范围内的用户终端的指示信息，比如生成单元310可以只生成指示基站不支持高度在第二高度范围内的用户终端的指示信息以及指示基站不支持高度在第三高度范围内的用户终端的指示信息。下文的实现方式也是类似的，将不再赘述。
可替换地，在该实现方式中，生成单元310还可以生成指示信息，该指示信息指示基站对特定高度的用户终端的支持能力。例如，在基站支持高度为150米的用户终端的情况下，生成单元310可以生成指示基站支持高度为150米的用户终端的指示信息。又例如，在基站不支持高度为250米的用户终端的情况下，生成单元310可以生成指示基站不支持高度为250米的用户终端的指示信息。
在第二实现方式中，生成单元310可以生成指示信息，该指示信息指示基站对不同类型的用户终端的支持能力。
例如，生成单元310可以预先确定用户终端的一种或多种类型，然后生成指示信息，该指示信息指示基站对该一种或多种类型的用户终端的支持能力。例如，生成单元310可以预先确定2种用户终端，分别为飞行用户终端或非飞行用户终端，在基站只支持飞行用户终端的情况下，生成单元310可以生成指示基站支持飞行用户终端的指示信息以及指示基站不支持非飞行用户终端的指示信息。
在第三实现方式中，生成单元310可以生成指示信息，该指示信息指示基站对不同高度和类型的用户终端的支持能力。
在该实现方式中，生成单元310可以确定一个或多个高度范围以及用户终端的一种或多种类型，然后生成指示信息，该指示信息指示基站对高度在该一个或多个高度范围内的各种用户终端的支持能力。例如，生成单元310可以预先确定3个高度范围，分别为第一高度范围(0-50米)、第二高度范围(50-100米)、第三高度范围(100-200米)，以及确定2种用户终端，分别为飞行用户终端或非飞行用户终端，在基站只支持高度在第二高度范围内的飞行用户终端的情况下，生成单元310可以分别生成指示基站不支持高度在第一高度范围内的飞行用户终端的指示信息、指示基站不支持高度在第一高度范围内的非飞行用户终端的指示信息、指示基站支持高度在第二高度范围内的飞行用户终端的指示信息、指示基站不支持高度在第二高度范围内的非飞行用户终端的指示信息、指示基站不支持高度在第三高度范围内的飞行用户终端的指示信息以及指示基站不支持高度在第三高度范围内的非飞行用户终端的指示信息。
可替换地，在该实现方式中，生成单元310还可以生成指示信息，该指示信息指示基站对特定高度的特定用户终端的支持能力。例如，在基站支持高度为150米的飞行用户终端的情况下，生成单元310可以生成指示基站支持高度为150米的飞行用户终端的指示信息。又例如，在基站不支持高度为250米的飞行用户终端的情况下，生成单元310可以生成指示基站不支持高度为250米的飞行用户终端的指示信息。
对于生成单元310生成的指示信息，在第一示例中，指示信息可 以是指示基站对不同高度和/或类型的用户终端设定的接入限制的接入限制信息。例如，在上述第一实现方式中，指示信息可以是指示基站对不同高度的用户终端设定的接入限制的接入限制信息。又例如，在上述第二实现方式中，指示信息可以是指示基站对不同类型的用户终端设定的接入限制的接入限制信息。又例如，在上述第三实现方式中，指示信息可以是指示基站对不同高度和类型的用户终端设定的接入限制的接入限制信息。
在该示例中，接入限制信息例如可以是关于基站是否允许用户终端接入的信息。在基站支持用户终端时，接入限制信息例如可以是基站允许用户终端驻留/小区选择/重选/接入的信息；在基站不支持用户终端时，接入限制信息例如可以是基站不允许用户终端驻留/小区选择/重选/接入的信息。对于各个高度和/或类型的用户终端，基站可以分别采用一个或多个比特作为接入限制信息，并分别对该一个或多个比特设置不同的值来表示基站是否允许各个高度和/或类型的用户终端接入。然后，当基站将该接入限制信息发送给用户终端后，用户终端可以根据该接入限制信息确定基站是否支持自身的高度和/或类型的用户终端接入。
例如，对于某一高度和/或类型的用户终端，接入限制信息可以是参数“cellBarred”，参数“cellBarred”占用1个比特且参数“cellBarred”所占用的比特的不同取值表示基站是否允许某一高度和/或类型的用户终端驻留/小区选择/重选/接入。比如，当参数“cellBarred”取值为第一值(比如0即禁止(barred))时表示基站不允许该高度和/或类型的用户终端驻留/小区选择/重选/接入；当参数“cellBarred”取值为第二值(比如1即未禁止(notbarred))时表示基站允许该高度和/或类型的用户终端驻留/小区选择/重选/接入。然后，当基站将参数“cellBarred”发送给用户终端后，用户终端可以根据参数“cellBarred”的取值确定基站对该高度和/或类型的用户终端的接入限制，以便用户终端确定是否可以对该基站执行小区选择/重选/接入等操作。
可以理解，这里的第一值为0时表示基站完全禁止该高度和/或类型的用户终端驻留/小区选择/重选/接入，而第二值为1时表示基站 完全支持该高度和/或类型的用户终端驻留/小区选择/重选/接入。然而，需要认识到，第一值和第二值的取值可以不是0或1，而可以是0和1之间的任意实数，以表示基站并不完全禁止或并不完全支持某一高度和/或类型的用户终端驻留/小区选择/重选/接入。例如，第一值可以是0.5，以表示某一高度和/或类型的用户终端驻留/小区选择/重选/接入基站的概率为50％。
又例如，对于某一高度和/或类型的用户终端，接入限制信息可以是参数“cellBarred”和参数“cellReservedForOperatorUse”，参数“cellBarred”和参数“cellReservedForOperatorUse”占用多个比特，其中参数“cellBarred”表示基站是否允许某一高度和/或类型的用户终端驻留/小区选择/重选/接入，以及当参数“cellBarred”表示基站未禁止某一高度和/或类型的用户终端驻留/小区选择/重选/接入时，参数“cellReservedForOperatorUse”进一步表示基站是否允许某一高度和/或类型的用户终端驻留/小区选择/重选/接入。上文已经描述了参数“cellBarred”，在此不再赘述。而参数“cellReservedForOperatorUse”是类似的，也可以占用1个比特，并且当参数“cellReservedForOperatorUse”的取值为第三值(比如0即未保留(not reserved))时表示基站允许该高度和/或类型的用户终端驻留/小区选择/重选/接入；当参数“cellBarred”的取值为第四值(比如1即保留(reserved))时表示基站允许该高度和/或类型的、接入类别为11或15的用户终端驻留/小区选择/重选/接入。
同样地，需要认识到，第三值和第四值的取值可以不是0或1，而可以是0和1之间的任意实数，以表示基站并不完全保留或完全保留某一高度和/或类型的用户终端驻留/小区选择/重选/接入。例如，第三值可以是0.5，以表示基站保留某一高度和/或类型的用户终端驻留/小区选择/重选/接入的概率为50％。
也就是说，在该示例中，对于每个高度和/或类型的用户终端，基站可以采用一组参数(“cellBarred”和“cellReservedForOperatorUse”中的至少一个)作为接入限制信息。因此，基站可以为各个高度和/或类型的用户终端分别设定各组参数作为相应的接入限制信息。然后，基 站可以将各组参数发送给用户终端，以便用户终端确定基站对自身高度和/或类型的用户终端的接入限制。基站在将各组参数发送给用户终端时可以通过第一系统信息进行发送，这将在下文进行描述。
对于生成单元310生成的指示信息，在第二示例中，指示信息可以是指示基站对不同高度和/或类型的用户终端设定的可接入类别(Access Classes/ACDC categories)的能力类别信息。例如，在上述第一实现方式中，指示信息可以是指示基站对不同高度的用户终端设定的可接入类别的能力类别信息。又例如，在上述第二实现方式中，指示信息可以是指示基站对不同类型的用户终端设定的可接入类别的能力类别信息。又例如，在上述第三实现方式中，指示信息可以是指示基站对不同高度和类型的用户终端设定的可接入类别的能力类别信息。
在该示例中，能力类别信息例如可以是关于基站允许哪些类别的用户终端接入的信息。在基站支持用户终端时，能力类别信息例如可以是基站所允许接入的用户终端的类别信息；在基站不支持用户终端时，接入限制信息例如可以是基站不允许接入的用户终端的类别信息。对于某一高度和/或类型的一个或多个用户终端，基站可以设定一组接入类别禁止(AC-barring)因子作为基站对该高度和/或类型的一个或多个用户终端的能力类别信息，其中一组AC-barring因子包括一个或多个AC-barring因子。AC-barring因子例如可以是能力类别禁止阈值，以指示在用户终端接入基站时该用户终端所运算的能力类别因子的实际值不应超过的数值。对于某一高度和/或类型的具有不同能力等级的用户终端，基站可以分别设定与每种能力等级相对应的AC-barring因子。然后，当基站将该能力类别信息发送给用户终端后，用户终端可以根据自身的能力等级运算该用户终端的接入类别因子的实际值，并判断该运算的实际值是否小于接收到的、由基站设定的与该用户终端的能力等级相对应的AC-barring因子的取值，从而判断是否可以在与该基站相对应的小区中从空闲(RRC_IDLE)状态进入连接(RRC_CONNECTED)状态。可以理解，当用户终端选择小区以进行驻留时，用户终端可以忽略该信息。这里的“AC-barring”因子的 取值可以是实数，例如，0、1或者0和1之间的实数，本公开对此不作限定。
也就是说，在该示例中，对于每个高度和/或类型的一个或多个用户终端，基站可以采用一组AC-barring因子作为能力类别信息。因此，基站可以为各个高度和/或类型的一个或多个用户终端分别设定一组AC-barring因子作为相应的能力类别信息。然后，基站可以将各组AC-barring因子发送给用户终端，以便用户终端确定基站是否允许自身类别的用户终端接入。基站在将各组AC-barring因子发送给用户终端时可以通过第二系统信息进行发送，这将在下文进行描述。
对于生成单元310生成的指示信息，在第三示例中，指示信息可以是能力类别信息和接入限制信息的组合信息。例如，对于某一高度和/或类型的用户终端，当指示信息中的接入限制信息是参数“cellBarred”且参数“cellBarred”的取值表示基站允许该高度和/或类型的用户终端驻留/小区选择/重选/接入时，指示信息中的能力类别信息可以进一步指示基站允许该高度和/或类型的用户终端中的哪些类别的用户终端接入。又例如，对于某一高度和/或类型的用户终端，当指示信息中的接入限制信息是参数“cellBarred”和参数“cellReservedForOperatorUse”且参数“cellReservedForOperatorUse”的取值表示基站保留该高度和/或类型的用户终端驻留/小区选择/重选/接入时，指示信息中的能力类别信息可以进一步指示基站允许该高度和/或类型的用户终端中的哪些类别的用户终端接入。
除了可以生成指示基站对不同高度和/或类型的用户终端的支持能力的指示信息以外，生成单元310还可以生成小区列表信息，该小区列表是不同高度和/或类型的用户终端进行测量的小区的列表。具体地，该小区列表可以是不同高度和/或类型的用户终端在一个或多个频率上进行测量的小区的列表。例如，在上文的第一实现方式中，小区列表可以是不同高度的用户终端在一个或多个频率上进行测量的小区的列表。又例如，在上文的第二实现方式中，小区列表可以是不同类型的用户终端在一个或多个频率上进行测量的小区的列表。又例如，在上文的第三实现方式中，小区列表可以是不同高度和类型的 用户终端在一个或多个频率上进行测量的小区的列表。需要认识到，基站可以在生成指示信息时生成小区列表信息，也可以在生成指示信息后生成小区列表信息或者在生成指示信息前生成小区列表信息。
在该示例中，小区列表可以是不同高度和/或类型的用户终端进行同频测量的小区的列表。例如，对于多个高度和/或类型的用户终端，小区列表可以是可用于同频小区重选或切换的无线资源管理(RRM)测量的、支持各个高度和/或类型的用户终端的小区的列表。用户终端在接收到这样的信息后，可以选择与自身的高度和/或类型相匹配的小区列表中的小区进行RRM测量，以进行同频小区重选或切换。此外，在这种情况下，小区列表可以是不同高度和/或类型的用户终端在一个频率上进行同频测量的小区的列表，所述一个频率可以是与基站相对应的小区的载波频率相同的频率。
可替换地，在该示例中，小区列表还可以是不同高度和/或类型的用户终端进行异频测量的小区的列表。在这种情况下，基站还可以生成不同高度和/或类型的用户终端进行异频测量的频率信息。例如，对于多个高度和/或类型的用户终端，小区列表可以是可用于各个高度和/或类型的用户终端的异频小区重选或切换的RRM测量的可用频率、以及在每个频率上支持的小区列表。用户终端在接收到这样的信息后，可以选择与自身的高度和/或类型相匹配的频率和小区列表，然后执行相应频率和小区上的异频RRM测量，以进行异频小区重选或切换。此外，在这种情况下，小区列表可以是不同高度和/或类型的用户终端在一个或多个频率上进行异频测量的小区的列表，所述一个或多个频率可以是与基站相对应的小区的载波频率不同的一个或多个频率。
此外，在上面的描述中，生成单元310是针对不同高度和/或类型的用户终端生成的指示信息或小区列表，然而本公开不限于此。生成单元310可以针对不同属性的用户终端生成指示信息或小区列表，其中属性包括用户终端的高度、类型、运动速度、能力等级等中的任意一个或多个。
根据本公开的一个示例，发送单元320可以向其管理的小区内 的用户终端广播在生成单元310生成的一个或多个指示信息。例如，发送单元320可以在广播信道中向其管理的小区内的用户终端广播生成单元310生成的指示信息。相应地，基站管理的小区内的用户终端都可以接收到基站对不同高度和/或类型的用户终端的指示信息。然后，基站管理的小区内的用户终端可以从接收到的指示信息中选择与自身的高度和/或类型相匹配的部分信息，以便进行驻留/小区选择/重选/接入、RRM测量等。
根据本公开的另一示例，发送单元320可以通过系统信息将指示信息广播给基站管理的小区内的用户终端。例如，在上文已经提到，当指示信息是指示基站对不同高度和/或类型的用户终端的接入限制的接入限制信息时，基站可以通过第一系统信息将接入限制信息发送给用户终端；当指示信息是指示基站对不同高度和/或类型的用户终端的可接入类别的能力类别信息时，基站可以通过第二系统信息将能力类别信息发送给用户终端。
在该示例中，发送单元320可以通过一个或多个系统信息块(SIB)将指示信息作为系统信息广播给基站管理的小区内的用户终端。在LTE系统中，已经定义了SIB1至SIB13来发送各种系统信息。然而，由于LTE系统并没有区分用户终端的高度和/或类型，因此，基站向不同高度和/或类型的用户终端发送的系统信息是相同的。而本公开中，为了改善不同高度和/或类型的用户终端与基站的通信，对不同高度和/或类型的用户终端进行了区分，并且基站在步骤S201中生成了对不同高度和/或类型的用户终端的指示信息。因此，在本公开中，基站可以对LTE系统中的SIB进行修改以发送在生成单元310生成的指示信息。
例如，发送单元320可以对LTE系统中的SIB增加一个或多个比特，且该一个或多个比特的不同取值以标识该SIB对应于不同高度和/或类型的用户终端。上文已经提到，当指示信息是指示基站对不同高度和/或类型的用户终端的接入限制的接入限制信息时，基站可以为各个高度和/或类型的用户终端分别设定一组参数(例如，“cellBarred”和“cellReservedForOperatorUse”)作为相应的接入限制信 息，在这种情况下，基站可以为各个高度和/或类型的用户终端分别确定SIB1。而且，所确定的SIB1不仅可以包括基站对该高度和/或类型的用户终端设定的该组参数(例如，“cellBarred”和“cellReservedForOperatorUse”)，还可以包括标识信息，其中该标识信息可以标识该SIB1对应于该高度和/或类型的用户终端。这里，通过SIB1发送的信息可以是上文所提到的第一系统信息。
此外，上文也已经提到，当指示信息是指示基站对不同高度和/或类型的用户终端的可接入类别的能力类别信息时，基站可以为各个高度和/或类型的用户终端分别设定一组AC-barring因子作为能力类别信息，在这种情况下，发送单元320可以为各个高度和/或类型的用户终端分别确定SIB2。而且，所确定的SIB2不仅可以包括基站对该高度和/或类型的用户终端设定的该组AC-barring因子，还可以包括标识信息，其中该标识信息可以标识该SIB2对应于该高度和/或类型的用户终端。这里，通过SIB2发送的信息可以是上文所提到的第二系统信息。
此外，根据本公开的其他示例，上文所提到的由生成单元310生成的小区列表也可以通过上面示例所描述的方式发送给用户终端。例如，发送单元320可以向其管理的小区内的用户终端广播所生成的小区列表，比如发送单元320可以通过系统信息将小区列表广播给基站管理的小区内的用户终端。又例如，发送单元320还可以通过RRC信令将所生成的小区列表发送给基站管理的小区内的用户终端。又例如，发送单元320还可以组合使用系统信息和RRC信令来发送所生成的小区列表。
通过本公开的上述实施例，基站对不同高度和/或类型的用户终端进行了区分，并且生成了针对不同高度和/或类型的用户终端的指示信息或小区列表，使得用户终端可以从接收到的指示信息或小区列表中选择与自身的高度和/或类型相匹配的部分信息，以选择性地进行驻留/小区选择/接入、RRM测量等操作，从而改善了不同高度和/或类型的用户终端与基站的通信，保证了不同高度和/或类型的用户终端可以获得良好的通信。
下面，参照图4来描述根据本公开实施例的与图2所示的方法200相对应的接收侧的无线通信方法。图4是根据本公开实施例的由用户终端执行的无线通信方法400的流程图。由于方法400与在上文中参照图2描述的方法200的细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。
如图4所示，在步骤S401中，用户终端接收指示信息，所述指示信息指示所述基站对不同高度和/或类型的用户终端的支持能力。然后，在步骤S402中，从所述指示信息中选择与所述自身的高度和/或类型相匹配的部分信息。
例如，在步骤S401中，用户终端可以接收到多个指示信息，该多个指示信息分别是基站对各个高度和/或类型的用户终端的指示信息。然后，在步骤S402中，用户终端可以从多个指示信息中选择与自身的高度和/或类型相匹配的一个指示信息。然后，用户终端可以根据所选择的指示信息确定基站对自身的高度和/或类型的用户终端的支持能力，并且当基站支持自身的高度和/或类型的用户终端接入时，该用户终端可以进行驻留/小区选择/接入等操作，以及当基站向自身的高度和/或类型的用户终端提供可进行测量的小区列表时，该用户终端可以对小区列表中的小区进行RRM测量等操作。此外，当基站不支持自身的高度和/或类型的用户终端接入时，该用户终端可以通过基站提供的小区列表进行RRM测量，并从小区列表中选择一个小区，然后尝试对所选择的小区进行驻留/小区选择/接入等操作。
对于步骤S401中的指示信息，在第一示例中，指示信息可以是指示基站对不同高度和/或类型的用户终端设定的接入限制的接入限制信息。接入限制信息例如可以是关于基站是否允许用户终端接入的信息。例如，对于各个高度和/或类型的用户终端，基站可以分别采用一个或多个比特作为接入限制信息，并分别对该一个或多个比特设置不同的值来表示基站是否允许各个高度和/或类型的用户终端接入。然后，当基站将该接入限制信息发送给用户终端后，用户终端可以根据该接入限制信息确定基站是否支持自身的高度和/或类型的用户终端接入。
对于步骤S401中的指示信息，在第二示例中，指示信息可以是指示基站对不同高度和/或类型的用户终端设定的可接入类别(Access Classes/ACDC categories)的能力类别信息。能力类别信息例如可以是关于基站允许哪些类别的用户终端接入的信息。对于某一高度和/或类型的一个或多个用户终端，基站可以设定一组接入类别禁止(AC-barring)因子作为基站对该高度和/或类型的一个或多个用户终端的能力类别信息，其中一组AC-barring因子包括一个或多个AC-barring因子。AC-barring因子例如可以是能力类别禁止阈值，以指示在用户终端接入基站时该用户终端所运算的能力类别因子的实际值不应超过的数值。对于某一高度和/或类型的具有不同能力等级的用户终端，基站可以分别设定与每种能力等级相对应的AC-barring因子。然后，当基站将该能力类别信息发送给用户终端后，用户终端可以根据自身的能力等级运算该用户终端的接入类别因子的实际值，并判断该运算的实际值是否小于接收到的、由基站设定的与该用户终端的能力等级相对应的AC-barring因子的取值，从而判断是否可以在与该基站相对应的小区中从空闲(RRC_IDLE)状态进入连接(RRC_CONNECTED)状态。
对于步骤S401中的指示信息，在第三示例中，指示信息可以是能力类别信息和接入限制信息的组合信息。
除了可以接收指示基站对不同高度和/或类型的用户终端的支持能力的指示信息以外，用户终端还可以接收基站生成的小区列表信息，该小区列表是不同高度和/或类型的用户终端进行测量的小区的列表。具体地，该小区列表可以是不同高度和/或类型的用户终端在一个或多个频率上进行测量的小区的列表。
在该示例中，小区列表可以是不同高度和/或类型的用户终端进行同频测量的小区的列表。例如，对于多个高度和/或类型的用户终端，小区列表可以是可用于同频小区重选或切换的无线资源管理(RRM)测量的、支持各个高度和/或类型的用户终端的小区的列表。用户终端在接收到这样的信息后，可以选择与自身的高度和/或类型相匹配的小区列表中的小区进行RRM测量，以进行同频小区重选或切换。此 外，在这种情况下，小区列表可以是不同高度和/或类型的用户终端在一个频率上进行同频测量的小区的列表，所述一个频率可以是与基站相对应的小区的载波频率相同的频率。
可替换地，在该示例中，小区列表还可以是不同高度和/或类型的用户终端进行异频测量的小区的列表。在这种情况下，基站还可以生成不同高度和/或类型的用户终端进行异频测量的频率信息。例如，对于多个高度和/或类型的用户终端，小区列表可以是可用于各个高度和/或类型的用户终端的异频小区重选或切换的RRM测量的可用频率、以及在每个频率上支持的小区列表。用户终端在接收到这样的信息后，可以选择与自身的高度和/或类型相匹配的频率和小区列表，然后执行相应频率和小区上的异频RRM测量，以进行异频小区重选或切换。此外，在这种情况下，小区列表可以是不同高度和/或类型的用户终端在一个或多个频率上进行异频测量的小区的列表，所述一个或多个频率可以是与基站相对应的小区的载波频率不同的一个或多个频率。
此外，执行图4所示的方法400的用户终端可以是处于RRC-IDLE状态。
通过本公开的上述实施例，基站对不同高度和/或类型的用户终端进行了区分，并且生成了针对不同高度和/或类型的用户终端的指示信息或小区列表，使得用户终端可以从接收到的指示信息或小区列表中选择与自身的高度和/或类型相匹配的部分信息，以选择性地进行驻留/小区选择/接入、RRM测量等操作，从而改善了不同高度和/或类型的用户终端与基站的通信，保证了不同高度和/或类型的用户终端可以获得良好的通信。
下面，参照图5来描述根据本公开实施例的执行图4所示的方法400的用户终端。图5示出了根据本公开实施例的用户终端500的框图。由于用户终端500的功能与在上文中参照图4描述的方法400的细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。
如图5所示，用户终端500包括接收单元510，被配置为接收指示信息，该指示信息指示基站对不同高度和/或类型的用户终端的支 持能力；以及选择单元520，被配置为从所述指示信息中选择与所述自身的高度和/或类型相匹配的部分信息。用户终端500还可以包括除了上述两个单元之外的其他单元，但由于这些单元与本公开无关，因此省略了这些单元的描述。
例如，接收单元510可以接收到多个指示信息，该多个指示信息分别是基站对各个高度和/或类型的用户终端的指示信息。然后，选择单元520可以从多个指示信息中选择与自身的高度和/或类型相匹配的一个指示信息。然后，用户终端可以根据所选择的指示信息确定基站对自身的高度和/或类型的用户终端的支持能力，并且当基站支持自身的高度和/或类型的用户终端接入时，该用户终端可以进行驻留/小区选择/接入等操作，以及当基站向自身的高度和/或类型的用户终端提供可进行测量的小区列表时，该用户终端可以对小区列表中的小区进行RRM测量等操作。此外，当基站不支持自身的高度和/或类型的用户终端接入时，该用户终端可以通过基站提供的小区列表进行RRM测量，并从小区列表中选择一个小区，然后尝试对所选择的小区进行驻留/小区选择/接入等操作。
在第一示例中，指示信息可以是指示基站对不同高度和/或类型的用户终端设定的接入限制的接入限制信息。接入限制信息例如可以是关于基站是否允许用户终端接入的信息。例如，对于各个高度和/或类型的用户终端，基站可以分别采用一个或多个比特作为接入限制信息，并分别对该一个或多个比特设置不同的值来表示基站是否允许各个高度和/或类型的用户终端接入。然后，当基站将该接入限制信息发送给用户终端后，用户终端可以根据该接入限制信息确定基站是否支持自身的高度和/或类型的用户终端接入。
在第二示例中，指示信息可以是指示基站对不同高度和/或类型的用户终端设定的可接入类别(Access Classes/ACDC categories)的能力类别信息。能力类别信息例如可以是关于基站允许哪些类别的用户终端接入的信息。对于某一高度和/或类型的一个或多个用户终端，基站可以设定一组接入类别禁止(AC-barring)因子作为基站对该高度和/或类型的一个或多个用户终端的能力类别信息，其中一组AC- barring因子包括一个或多个AC-barring因子。AC-barring因子例如可以是能力类别禁止阈值，以指示在用户终端接入基站时该用户终端所运算的能力类别因子的实际值不应超过的数值。对于某一高度和/或类型的具有不同能力等级的用户终端，基站可以分别设定与每种能力等级相对应的AC-barring因子。然后，当基站将该能力类别信息发送给用户终端后，用户终端可以根据自身的能力等级运算该用户终端的接入类别因子的实际值，并判断该运算的实际值是否小于接收到的、由基站设定的与该用户终端的能力等级相对应的AC-barring因子的取值，从而判断是否可以在与该基站相对应的小区中从空闲(RRC_IDLE)状态进入连接(RRC_CONNECTED)状态。
除了可以接收指示基站对不同高度和/或类型的用户终端的支持能力的指示信息以外，接收单元510还可以接收基站生成的小区列表信息，该小区列表是不同高度和/或类型的用户终端进行测量的小区的列表。
在该示例中，小区列表可以是不同高度和/或类型的用户终端进行同频测量的小区的列表。例如，对于多个高度和/或类型的用户终端，小区列表可以是可用于同频小区重选或切换的无线资源管理(RRM)测量的、支持各个高度和/或类型的用户终端的小区的列表。用户终端在接收到这样的信息后，可以选择与自身的高度和/或类型相匹配的小区列表中的小区进行RRM测量，以进行同频小区重选或切换。
可替换地，在该示例中，小区列表还可以是不同高度和/或类型的用户终端进行异频测量的小区的列表。在这种情况下，基站还可以生成不同高度和/或类型的用户终端进行异频测量的频率信息。例如，对于多个高度和/或类型的用户终端，小区列表可以是可用于各个高度和/或类型的用户终端的异频小区重选或切换的RRM测量的可用频率、以及在每个频率上支持的小区列表。用户终端在接收到这样的信息后，可以选择与自身的高度和/或类型相匹配的频率和小区列表，然后执行相应频率和小区上的异频RRM测量，以进行异频小区重选或切换。
通过本公开的上述实施例，基站对不同高度和/或类型的用户终端进行了区分，并且生成了针对不同高度和/或类型的用户终端的指示信息或小区列表，使得用户终端可以从接收到的指示信息或小区列表中选择与自身的高度和/或类型相匹配的部分信息，以选择性地进行驻留/小区选择/接入、RRM测量等操作，从而改善了不同高度和/或类型的用户终端与基站的通信，保证了不同高度和/或类型的用户终端可以获得良好的通信。
<硬件结构>
另外，上述实施方式的说明中使用的框图示出了以功能为单位的块。这些功能块(结构单元)通过硬件和/或软件的任意组合来实现。此外，各功能块的实现手段并不特别限定。即，各功能块可以通过在物理上和/或逻辑上相结合的一个装置来实现，也可以将在物理上和/或逻辑上相分离的两个以上装置直接地和/或间接地(例如通过有线和/或无线)连接从而通过上述多个装置来实现。
例如，本发明的一实施方式中的无线基站、用户终端等可以作为执行本发明的无线通信方法的处理的计算机来发挥功能。图6是示出本发明的一实施方式所涉及的无线基站和用户终端的硬件结构的一例的图。上述的无线基站300和用户终端500可以作为在物理上包括处理器610、内存620、存储器630、通信装置640、输入装置650、输出装置660、总线670等的计算机装置600来构成。
另外，在以下的说明中，“装置”这样的文字也可替换为电路、设备、单元等。无线基站300和用户终端500的硬件结构可以包括一个或多个图中所示的各装置，也可以不包括部分装置。
例如，处理器610仅图示出一个，但也可以为多个处理器。此外，可以通过一个处理器来执行处理，也可以通过一个以上的处理器同时、依次、或采用其它方法来执行处理。另外，处理器610可以通过一个以上的芯片来安装。
无线基站300和用户终端500中的各功能例如通过如下方式实现：通过将规定的软件(程序)读入到处理器610、内存620等硬件上，从而使处理器610进行运算，对由通信装置640进行的通信进行 控制，并对内存620和存储器630中的数据的读出和/或写入进行控制。
处理器610例如使操作系统进行工作从而对计算机整体进行控制。处理器610可以由包括与周边装置的接口、控制装置、运算装置、寄存器等的中央处理器(CPU，Central Processing Unit)构成。例如，上述的接入单元、维护单元等可以通过处理器610实现。
此外，处理器610将程序(程序代码)、软件模块、数据等从存储器630和/或通信装置640读出到内存620，并根据它们执行各种处理。作为程序，可以采用使计算机执行在上述实施方式中说明的动作中的至少一部分的程序。例如，用户终端500的接入单元可以通过保存在内存620中并通过处理器610来工作的控制程序来实现，对于其它功能块，也可以同样地来实现。
内存620是计算机可读取记录介质，例如可以由只读存储器(ROM，Read Only Memory)、可编程只读存储器(EPROM，Erasable Programmable ROM)、电可编程只读存储器(EEPROM，Electrically EPROM)、随机存取存储器(RAM，Random Access Memory)、其它适当的存储介质中的至少一个来构成。内存620也可以称为寄存器、高速缓存、主存储器(主存储装置)等。内存620可以保存用于实施本发明的一实施方式所涉及的无线通信方法的可执行程序(程序代码)、软件模块等。
存储器630是计算机可读取记录介质，例如可以由软磁盘(flexible disk)、软(注册商标)盘(floppy disk)、磁光盘(例如，只读光盘(CD-ROM(Compact Disc ROM)等)、数字通用光盘、蓝光(Blu-ray，注册商标)光盘)、可移动磁盘、硬盘驱动器、智能卡、闪存设备(例如，卡、棒(stick)、密钥驱动器(key driver))、磁条、数据库、服务器、其它适当的存储介质中的至少一个来构成。存储器630也可以称为辅助存储装置。
通信装置640是用于通过有线和/或无线网络进行计算机间的通信的硬件(发送接收设备)，例如也称为网络设备、网络控制器、网卡、通信模块等。通信装置640为了实现例如频分双工(FDD，Frequency Division Duplex)和/或时分双工(TDD，Time Division  Duplex)，可以包括高频开关、双工器、滤波器、频率合成器等。例如，上述的发送单元、接收单元等可以通过通信装置640来实现。
输入装置650是接受来自外部的输入的输入设备(例如，键盘、鼠标、麦克风、开关、按钮、传感器等)。输出装置660是实施向外部的输出的输出设备(例如，显示器、扬声器、发光二极管(LED，Light Emitting Diode)灯等)。另外，输入装置650和输出装置660也可以为一体的结构(例如触控面板)。
此外，处理器610、内存620等各装置通过用于对信息进行通信的总线670连接。总线670可以由单一的总线构成，也可以由装置间不同的总线构成。
此外，无线基站300和用户终端500可以包括微处理器、数字信号处理器(DSP，Digital Signal Processor)、专用集成电路(ASIC，Application Specific Integrated Circuit)、可编程逻辑器件(PLD，Programmable Logic Device)、现场可编程门阵列(FPGA，Field Programmable Gate Array)等硬件，可以通过该硬件来实现各功能块的部分或全部。例如，处理器610可以通过这些硬件中的至少一个来安装。
(变形例)
另外，关于本说明书中说明的用语和/或对本说明书进行理解所需的用语，可以与具有相同或类似含义的用语进行互换。例如，信道和/或符号也可以为信号(信令)。此外，信号也可以为消息。参考信号也可以简称为RS(Reference Signal)，根据所适用的标准，也可以称为导频(Pilot)、导频信号等。此外，分量载波(CC，Component Carrier)也可以称为小区、频率载波、载波频率等。
此外，本说明书中说明的信息、参数等可以用绝对值来表示，也可以用与规定值的相对值来表示，还可以用对应的其它信息来表示。例如，无线资源可以通过规定的索引来指示。进一步地，使用这些参数的公式等也可以与本说明书中明确公开的不同。
在本说明书中用于参数等的名称在任何方面都并非限定性的。例如，各种各样的信道(物理上行链路控制信道(PUCCH，Physical Uplink Control Channel)、物理下行链路控制信道(PDCCH，Physical  Downlink Control Channel)等)和信息单元可以通过任何适当的名称来识别，因此为这些各种各样的信道和信息单元所分配的各种各样的名称在任何方面都并非限定性的。
本说明书中说明的信息、信号等可以使用各种各样不同技术中的任意一种来表示。例如，在上述的全部说明中可能提及的数据、命令、指令、信息、信号、比特、符号、芯片等可以通过电压、电流、电磁波、磁场或磁性粒子、光场或光子、或者它们的任意组合来表示。
此外，信息、信号等可以从上层向下层、和/或从下层向上层输出。信息、信号等可以经由多个网络节点进行输入或输出。
输入或输出的信息、信号等可以保存在特定的场所(例如内存)，也可以通过管理表进行管理。输入或输出的信息、信号等可以被覆盖、更新或补充。输出的信息、信号等可以被删除。输入的信息、信号等可以被发往其它装置。
信息的通知并不限于本说明书中说明的方式/实施方式，也可以通过其它方法进行。例如，信息的通知可以通过物理层信令(例如，下行链路控制信息(DCI，Downlink Control Information)、上行链路控制信息(UCI，Uplink Control Information))、上层信令(例如，无线资源控制(RRC，Radio Resource Control)信令、广播信息(主信息块(MIB，Master Information Block)、系统信息块(SIB，System Information Block)等)、媒体存取控制(MAC，Medium Access Control)信令)、其它信号或者它们的组合来实施。
另外，物理层信令也可以称为L1/L2(第1层/第2层)控制信息(L1/L2控制信号)、L1控制信息(L1控制信号)等。此外，RRC信令也可以称为RRC消息，例如可以为RRC连接建立(RRC Connection Setup)消息、RRC连接重配置(RRC Connection Reconfiguration)消息等。此外，MAC信令例如可以通过MAC控制单元(MAC CE(Control Element))来通知。
此外，规定信息的通知(例如，“为X”的通知)并不限于显式地进行，也可以隐式地(例如，通过不进行该规定信息的通知，或者通过其它信息的通知)进行。
关于判定，可以通过由1比特表示的值(0或1)来进行，也可以通过由真(true)或假(false)表示的真假值(布尔值)来进行，还可以通过数值的比较(例如与规定值的比较)来进行。
软件无论被称为软件、固件、中间件、微代码、硬件描述语言，还是以其它名称来称呼，都应宽泛地解释为是指命令、命令集、代码、代码段、程序代码、程序、子程序、软件模块、应用程序、软件应用程序、软件包、例程、子例程、对象、可执行文件、执行线程、步骤、功能等。
此外，软件、命令、信息等可以经由传输介质被发送或接收。例如，当使用有线技术(同轴电缆、光缆、双绞线、数字用户线路(DSL，Digital Subscriber Line)等)和/或无线技术(红外线、微波等)从网站、服务器、或其它远程资源发送软件时，这些有线技术和/或无线技术包括在传输介质的定义内。
本说明书中使用的“系统”和“网络”这样的用语可以互换使用。
在本说明书中，“基站(BS，Base Station)”、“无线基站”、“eNB”、“gNB”、“小区”、“扇区”、“小区组”、“载波”以及“分量载波”这样的用语可以互换使用。基站有时也以固定台(fixed station)、NodeB、eNodeB(eNB)、接入点(access point)、发送点、接收点、毫微微小区、小小区等用语来称呼。
基站可以容纳一个或多个(例如三个)小区(也称为扇区)。当基站容纳多个小区时，基站的整个覆盖区域可以划分为多个更小的区域，每个更小的区域也可以通过基站子系统(例如，室内用小型基站(射频拉远头(RRH，Remote Radio Head)))来提供通信服务。“小区”或“扇区”这样的用语是指在该覆盖中进行通信服务的基站和/或基站子系统的覆盖区域的一部分或整体。
在本说明书中，“移动台(MS，Mobile Station)”、“用户终端(user terminal)”、“用户装置(UE，User Equipment)”以及“终端”这样的用语可以互换使用。移动台有时也被本领域技术人员以用户台、移动单元、用户单元、无线单元、远程单元、移动设备、无线设备、无线通信设备、远程设备、移动用户台、接入终端、移动终端、无线终端、 远程终端、手持机、用户代理、移动客户端、客户端或者若干其它适当的用语来称呼。
此外，本说明书中的无线基站也可以用用户终端来替换。例如，对于将无线基站和用户终端间的通信替换为多个用户终端间(D2D，Device-to-Device)的通信的结构，也可以应用本发明的各方式/实施方式。此时，可以将上述的无线基站300所具有的功能当作用户终端500所具有的功能。此外，“上行”和“下行”等文字也可以替换为“侧”。例如，上行信道也可以替换为侧信道。
同样，本说明书中的用户终端也可以用无线基站来替换。此时，可以将上述的用户终端500所具有的功能当作无线基站300所具有的功能。
在本说明书中，设为通过基站进行的特定动作根据情况有时也通过其上级节点(upper node)来进行。显然，在具有基站的由一个或多个网络节点(network nodes)构成的网络中，为了与终端间的通信而进行的各种各样的动作可以通过基站、除基站之外的一个以上的网络节点(可以考虑例如移动管理实体(MME，Mobility Management Entity)、服务网关(S-GW，Serving-Gateway)等，但不限于此)、或者它们的组合来进行。
本说明书中说明的各方式/实施方式可以单独使用，也可以组合使用，还可以在执行过程中进行切换来使用。此外，本说明书中说明的各方式/实施方式的处理步骤、序列、流程图等只要没有矛盾，就可以更换顺序。例如，关于本说明书中说明的方法，以示例性的顺序给出了各种各样的步骤单元，而并不限定于给出的特定顺序。
本说明书中说明的各方式/实施方式可以应用于利用长期演进(LTE，Long Term Evolution)、高级长期演进(LTE-A，LTE-Advanced)、超越长期演进(LTE-B，LTE-Beyond)、超级第3代移动通信系统(SUPER 3G)、高级国际移动通信(IMT-Advanced)、第4代移动通信系统(4G，4th generation mobile communication system)、第5代移动通信系统(5G，5th generation mobile communication system)、未来无线接入(FRA，Future Radio Access)、新无线接入技术(New-RAT，Radio Access Technology)、新无线(NR，New Radio)、新无 线接入(NX，New radio access)、新一代无线接入(FX，Future generation radio access)、全球移动通信系统(GSM(注册商标)，Global System for Mobile communications)、码分多址接入2000(CDMA2000)、超级移动宽带(UMB，Ultra Mobile Broadband)、IEEE 802.11(Wi-Fi(注册商标))、IEEE 802.16(WiMAX(注册商标))、IEEE 802.20、超宽带(UWB，Ultra-WideBand)、蓝牙(Bluetooth(注册商标))、其它适当的无线通信方法的系统和/或基于它们而扩展的下一代系统。
本说明书中使用的“根据”这样的记载，只要未在其它段落中明确记载，则并不意味着“仅根据”。换言之，“根据”这样的记载是指“仅根据”和“至少根据”这两者。
本说明书中使用的对使用“第一”、“第二”等名称的单元的任何参照，均非全面限定这些单元的数量或顺序。这些名称可以作为区别两个以上单元的便利方法而在本说明书中使用。因此，第一单元和第二单元的参照并不意味着仅可采用两个单元或者第一单元必须以若干形式占先于第二单元。
本说明书中使用的“判断(确定)(determining)”这样的用语有时包含多种多样的动作。例如，关于“判断(确定)”，可以将计算(calculating)、推算(computing)、处理(processing)、推导(deriving)、调查(investigating)、搜索(looking up)(例如表、数据库、或其它数据结构中的搜索)、确认(ascertaining)等视为是进行“判断(确定)”。此外，关于“判断(确定)”，也可以将接收(receiving)(例如接收信息)、发送(transmitting)(例如发送信息)、输入(input)、输出(output)、存取(accessing)(例如存取内存中的数据)等视为是进行“判断(确定)”。此外，关于“判断(确定)”，还可以将解决(resolving)、选择(selecting)、选定(choosing)、建立(establishing)、比较(comparing)等视为是进行“判断(确定)”。也就是说，关于“判断(确定)”，可以将若干动作视为是进行“判断(确定)”。
本说明书中使用的“连接的(connected)”、“结合的(coupled)”这样的用语或者它们的任何变形是指两个或两个以上单元间的直接的或间接的任何连接或结合，可以包括以下情况：在相互“连接”或“结合”的两个单元间，存在一个或一个以上的中间单元。单元间的结合 或连接可以是物理上的，也可以是逻辑上的，或者还可以是两者的组合。例如，“连接”也可以替换为“接入”。在本说明书中使用时，可以认为两个单元是通过使用一个或一个以上的电线、线缆、和/或印刷电气连接，以及作为若干非限定性且非穷尽性的示例，通过使用具有射频区域、微波区域、和/或光(可见光及不可见光这两者)区域的波长的电磁能等，被相互“连接”或“结合”。
在本说明书或权利要求书中使用“包括(including)”、“包含(comprising)”、以及它们的变形时，这些用语与用语“具备”同样是开放式的。进一步地，在本说明书或权利要求书中使用的用语“或(or)”并非是异或。
以上对本发明进行了详细说明，但对于本领域技术人员而言，显然，本发明并非限定于本说明书中说明的实施方式。本发明在不脱离由权利要求书的记载所确定的本发明的宗旨和范围的前提下，可以作为修改和变更方式来实施。因此，本说明书的记载是以示例说明为目的，对本发明而言并非具有任何限制性的意义。

Claims (20)

  1. 一种由基站执行的无线通信方法，包括：
    生成指示信息，所述指示信息指示所述基站对不同高度和/或类型的用户终端的支持能力；以及
    将所述指示信息发送给所述基站管理的小区内的用户终端。
  2. 如权利要求1所述的方法，其中所述指示信息是指示所述基站对不同高度和/或类型的用户终端设定的接入限制的接入限制信息。
  3. 如权利要求1所述的方法，其中所述指示信息是指示所述基站对不同高度和/或类型的用户终端设定的可接入类别的能力类别信息。
  4. 如权利要求1所述的方法，还包括：
    生成小区列表信息，所述小区列表是不同高度和/或类型的用户终端进行测量的小区的列表。
  5. 如权利要求4所述的方法，其中所述小区列表是不同高度和/或类型的用户终端进行同频测量的小区的列表。
  6. 如权利要求4所述的方法，还包括：
    生成不同高度和/或类型的用户终端进行异频测量的频率信息，其中所述小区列表是不同高度和/或类型的用户终端进行异频测量的小区的列表。
  7. 如权利要求1至6任一项所述的方法，其中将所述指示信息发送给所述基站管理的小区内的用户终端包括：
    向所述基站管理的小区内的用户终端广播所述指示信息。
  8. 一种由用户终端执行的无线通信方法，包括：
    接收指示信息，所述指示信息指示基站对不同高度和/或类型的用户终端的支持能力；以及
    从所述指示信息中选择与所述自身的高度和/或类型相匹配的部分信息。
  9. 如权利要求8所述的方法，其中所述指示信息是指示所述基 站对不同高度和/或类型的用户终端设定的接入限制的接入限制信息。
  10. 如权利要求8所述的方法，其中所述指示信息是指示所述基站对不同高度和/或类型的用户终端设定的可接入类别的能力类别信息。
  11. 如权利要求8所述的方法，还包括：
    接收小区列表信息，所述小区列表是不同高度和/或类型的用户终端进行测量的小区列表。
  12. 一种基站，包括：
    生成单元，被配置为生成指示信息，所述指示信息指示所述基站对不同高度和/或类型的用户终端的支持能力；以及
    发送单元，被配置为将所述指示信息发送给所述基站管理的小区内的用户终端。
  13. 如权利要求12所述的基站，其中所述指示信息是指示所述基站对不同高度和/或类型的用户终端设定的接入限制的接入限制信息。
  14. 如权利要求12所述的基站，其中所述指示信息是指示所述基站对不同高度和/或类型的用户终端设定的可接入类别的能力类别信息。
  15. 如权利要求12所述的基站，其中所述生成单元还被配置为生成小区列表信息，所述小区列表是不同高度和/或类型的用户终端进行测量的小区列表。
  16. 如权利要求12至15任一项所述的基站，其中所述发送单元还被配置为向所述基站管理的小区内的用户终端广播所述指示信息。
  17. 一种用户终端，包括：
    接收单元，被配置为接收指示信息，所述指示信息指示基站对不同高度和/或类型的用户终端的支持能力；以及
    选择单元，被配置为从所述指示信息中选择与所述自身的高度和/或类型相匹配的部分信息。
  18. 如权利要求17所述的用户终端，其中所述指示信息是指示所述基站对不同高度和/或类型的用户终端设定的接入限制的接入限制信息。
  19. 如权利要求17所述的用户终端，其中所述指示信息是指示所述基站对不同高度和/或类型的用户终端设定的可接入类别的能力类别信息。
  20. 如权利要求17所述的用户终端，其中所述接收单元还被配置为接收小区列表信息，所述小区列表是不同高度和/或类型的用户终端进行测量的小区列表。
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