WO2018126907A1 - 确定候选小区的方法、用户设备和基站 - Google Patents

确定候选小区的方法、用户设备和基站 Download PDF

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Publication number
WO2018126907A1
WO2018126907A1 PCT/CN2017/117969 CN2017117969W WO2018126907A1 WO 2018126907 A1 WO2018126907 A1 WO 2018126907A1 CN 2017117969 W CN2017117969 W CN 2017117969W WO 2018126907 A1 WO2018126907 A1 WO 2018126907A1
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Prior art keywords
cell
system information
status indication
core network
type
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PCT/CN2017/117969
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English (en)
French (fr)
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WO2018126907A8 (zh
Inventor
张崇铭
刘仁茂
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夏普株式会社
张崇铭
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Application filed by 夏普株式会社, 张崇铭 filed Critical 夏普株式会社
Priority to RU2019124514A priority Critical patent/RU2756302C2/ru
Priority to EP17890404.1A priority patent/EP3567917B1/en
Priority to AU2017391402A priority patent/AU2017391402B2/en
Priority to US16/476,017 priority patent/US11129066B2/en
Priority to MX2019008034A priority patent/MX2019008034A/es
Publication of WO2018126907A1 publication Critical patent/WO2018126907A1/zh
Publication of WO2018126907A8 publication Critical patent/WO2018126907A8/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • 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

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and more particularly, the present disclosure relates to a method of cell selection/reselection and corresponding base stations and user equipment.
  • the research topic of the new 5G wireless access technology was proposed at the 3rd Generation Partnership Project (3GPP) RAN#64 plenary meeting held in March 2016 (see Non-Patent Document: RP-160671 New SID Proposal: Study on New Radio Access Technology).
  • 3GPP 3rd Generation Partnership Project
  • RAN#64 plenary meeting held in March 2016 see Non-Patent Document: RP-160671 New SID Proposal: Study on New Radio Access Technology.
  • the working frequency band of the new communication system can be extended to 100 GHz, and at the same time, it will meet at least the demand for enhanced mobile broadband services, the communication requirements of massive IoT terminals, and the business requirements for high reliability requirements.
  • the research work of the project will end in 2018.
  • the core network to which the existing Long Term Evolution (LTE) system is connected is called an Evolved Packet Core (EPC).
  • EPC Evolved Packet Core
  • the next-generation core network under discussion will be based on different Quality of Service (Qos) architectures and can therefore be considered a new core network type that is different from EPC.
  • Qos Quality of Service
  • next generation core network can be logically divided into different network segments according to the service type or service characteristics, and each network slice supports its own core network function to provide services for a specific user group.
  • an eLTE base station can support connections to the EPC and connections to the next generation core network.
  • the eLTE base station connected to the EPC can be considered to belong to the E-UTRAN (Evolved Universal Terrestrial Radio Access Network) access network, and the eLTE eNB connected to the next-generation core network can be considered to belong to the 5G-RAN interface.
  • Network access depending on the type of core network to which the eLTE base station is connected, the cell covered by one eLTE base station may be an E-UTRAN cell, or may be a 5G-RAN cell, or may be both an E-UTRAN cell and a 5G-RAN cell.
  • both the E-UTRAN cell and the 5G-RAN cell exist in the area covered by the eLTE base station.
  • the next-generation core network also includes more than one network slice, cells supporting different core network functions may also exist in the area covered by the eLTE base station.
  • UE user equipment
  • the present disclosure is directed to a method of determining a candidate cell.
  • a method performed by a base station comprising: generating system information, the system information including at least a first network type cell status indication and a second network type cell status indication; and, a broadcaster Generated system information.
  • a method performed by a User Equipment comprising: receiving system information of a cell, the system information including at least a first network type cell status indication and a second network type cell status And indicating, based on the network type cell status indication in the received system information, whether the cell is used as a candidate cell for cell selection/reselection.
  • UE User Equipment
  • the first network type cell status and/or the second network type cell status comprises: “Allow” or “Disable”.
  • the first network type cell status and/or the second network type cell status includes: “Allow”, “Disable”, and “Not Supported”.
  • the candidate cell that selects/reselects the cell is excluded.
  • the candidate cell that uses the cell as the cell selection/reselection is excluded, and The cell is set to a low priority.
  • the cell is excluded as a candidate for cell selection/reselection only when both the first network type cell status indication and the second network type cell status indication in the received system information indicate "prohibited" Community.
  • the cell is used as a candidate cell for cell selection/reselection only when both the first network type cell status indication and the second network type cell status indication in the received system information indicate “Allow”.
  • a method performed by a base station comprising: generating system information, the system information including at least a first functional status indication corresponding to a first core network function type and corresponding to a second core a second functional status indication of the network function type; and, broadcasting the generated system information.
  • a method performed by a User Equipment comprising: receiving system information of a cell, the system information including at least a first functional status indication corresponding to a first core network function type And a second function status indication corresponding to the second core network function type; and determining whether to use the cell as a cell selection/heavy based on the core network function selected by the UE and the corresponding function status indication in the received system information Selected candidate cell.
  • UE User Equipment
  • the first functional state corresponding to the first core network function type and/or the second functional state corresponding to the second core network functional type includes: “Allow” and “Disable”.
  • the first functional state corresponding to the first core network function type and/or the second functional state corresponding to the second core network functional type includes: “Allow”, “Disable”, and “Not Supported”.
  • a base station comprising: a processor; and, a memory, storing instructions.
  • the instructions when executed on the processor, cause the processor to be configured to: generate system information, the system information including at least a first network type cell status indication and a second network type cell status indication; and, a broadcaster Generated system information.
  • a user equipment including: a processor; and, a memory, storing instructions.
  • the processor is configured to: receive system information of a cell, where the system information includes at least a first network type cell status indication and a second network type cell status indication; The network type cell status indication in the received system information determines whether the cell is used as a candidate cell for cell selection/reselection.
  • a base station comprising: a processor; and, a memory, storing instructions.
  • the instructions when executed on the processor, cause the processor to be configured to: generate system information, the system information including at least a first functional status indication corresponding to a first core network function type and corresponding to a second core a second functional status indication of the network function type; and, broadcasting the generated system information.
  • a user equipment comprising: a processor; and, a memory, storing instructions.
  • the processor is configured to: receive system information of a cell, where the system information includes at least a first function status indication corresponding to a first core network function type and corresponding to the a second function status indication of the second core network function type; and determining whether to use the cell as a candidate cell for cell selection/reselection based on a core network function selected by the UE and a corresponding function status indication in the received system information .
  • a base station including:
  • a generating unit configured to: generate system information, where the system information includes at least a first network type cell status indication and a second network type cell status indication;
  • the sending unit is configured to: broadcast the generated system information.
  • a user equipment “UE” including:
  • a receiving unit configured to: receive system information of a cell, where the system information includes at least a first network type cell status indication and a second network type cell status indication;
  • the processing unit is configured to: determine, according to the network type cell status indication in the received system information, whether the cell is used as a candidate cell for cell selection/reselection.
  • a base station including:
  • a generating unit configured to: generate system information, where the system information includes at least a first function status indication corresponding to the first core network function type and a second function status indication corresponding to the second core network function type;
  • the sending unit is configured to: broadcast the generated system information.
  • a user equipment including:
  • the receiving unit is configured to: receive system information of the cell, where the system information includes at least a first function status indication corresponding to the first core network function type and a second function status indication corresponding to the second core network function type;
  • the processing unit is configured to: determine whether the cell is used as a candidate cell for cell selection/reselection based on a core network function selected by the UE and a corresponding function status indication in the received system information.
  • FIG. 1 schematically shows a flow chart of a method performed in an eLTE base station according to a first embodiment of the present disclosure.
  • FIG. 2 schematically illustrates a flow chart of a method performed in a user equipment in accordance with a first embodiment of the present disclosure.
  • FIG. 3 schematically illustrates a flow chart of a method performed in an eLTE base station in accordance with a second embodiment of the present disclosure.
  • FIG. 4 schematically illustrates a flow chart of a method performed in a user equipment in accordance with a second embodiment of the present disclosure.
  • FIG. 5 schematically illustrates a flow chart of a method performed in an eLTE base station in accordance with a third embodiment of the present disclosure.
  • FIG. 6 schematically illustrates a flow chart of a method performed in a user equipment in accordance with a third embodiment of the present disclosure.
  • FIG. 7 schematically shows a structural block diagram of an eLTE base station according to an embodiment of the present disclosure.
  • FIG. 8 schematically shows a structural block diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 9 schematically shows a structural block diagram of an eLTE base station according to another embodiment of the present disclosure.
  • FIG. 10 schematically shows a structural block diagram of a user equipment according to another embodiment of the present disclosure.
  • next-generation mobile communication system such as a 5G or later communication system
  • a base station it is possible for a base station to connect to different types of core networks, such as an existing EPC or a next-generation core network supporting more than one network slice.
  • core networks such as an existing EPC or a next-generation core network supporting more than one network slice.
  • the base station When a base station is connected to a different core network type, the base station corresponds to a different access network. Therefore, depending on the type of core network to which the base station is connected, a cell covered by one base station may be referred to as a different access network type/core network type cell.
  • the access network type/core network type is collectively referred to as "network type", and in the following, the access network type cell and the core network Type cells, access network types/core network type cells can be used interchangeably.
  • a cell of an eLTE base station connected to an EPC may be referred to as an EPC type cell/E-UTRAN cell.
  • a cell connecting an eLTE base station of a next-generation core network may be referred to as a next-generation core network type cell/5G-RAN cell.
  • An EPC type cell/E-UTRAN cell may provide EPC core network functionality to user equipment within its coverage.
  • the next generation core network type cell/5G-RAN cell can provide next generation core network functions to user equipment within its coverage.
  • the next generation core network can be logically divided into different network segments according to the service type or service characteristics, and each network slice supports its own core network function.
  • the next generation core network type cell/5G-RAN cell can provide different core network functions to user equipment within its coverage according to the network slice to which it is connected.
  • a base station refers to an eLTE base station unless otherwise explicitly stated.
  • the present disclosure is not limited to the foregoing examples of the base station, the UE, the access network, and the core network, and can also be used for other base stations supporting access of multiple network types, or Base stations that support multiple core network functions, as well as UEs within their coverage.
  • the present disclosure is not limited to the following embodiments, but is applicable to more other wireless communication systems, such as mobile communication systems after 5G.
  • FIG. 1 schematically illustrates a flow diagram of a method 100 performed in an eLTE base station in accordance with a first embodiment of the present disclosure.
  • the base station generates system information (e.g., system information block SIB).
  • the system information includes at least a first network type (access network type/core network type) cell status indication and a second network type (access network type/core network type) cell status indication.
  • the base station broadcasts the generated system information in its cell.
  • FIG. 2 schematically illustrates a flow diagram of a method 200 performed in a User Equipment (UE) in accordance with a first embodiment of the present disclosure.
  • UE User Equipment
  • the user equipment can receive system information of the cell.
  • the system information includes at least a first network type cell status indication and a second network type cell status indication.
  • the user equipment may determine whether to use the cell as a candidate cell for cell selection/reselection based on a corresponding network type cell status indication in the received system information.
  • the cell status indication corresponding to different network types is simultaneously broadcasted in the system information of the cell broadcast, that is, the first network type cell status indication (referred to as status indication one) and the second network type cell status indication. (referred to as status indication 1).
  • the status indication may be represented, for example, by a 1-bit symbol to indicate two states of the corresponding network type cell (E-UTRAN cell or 5G-RAN cell), such as "Allow” or “Disable”. For example, when the status indication one is “0”, it means that the E-UTRAN cell is forbidden to use; when the status refers to When the first one is “1”, it indicates that the E-UTRAN cell is allowed to be used.
  • the status indication 2 can also be represented by such a method. When the status indication 2 is “0”, it indicates that the 5G-RAN cell is forbidden to use; when the status indication 2 is “1”, it indicates that the 5G-RAN cell is allowed to use. It should be understood that the above-described embodiments are merely examples, and the status indication may also mean “allow” with a value of "1” and “forbidden” with a value of "0”, and the present disclosure is not limited in this respect.
  • the status indication may also be represented by a 2-bit symbol to indicate more than two states of the corresponding network type cell (E-UTRAN cell or 5G-RAN cell).
  • a cell state may include three states: “Allow”, “Disable”, and “Not Supported”.
  • the status indication two is "00", it means that 5G-RAN is not supported; when the status indication 2 is "10”, it means that 5G-RAN is supported, but the current 5G-RAN cell is forbidden to use; when the status indication is "11"
  • the time indicates that 5G-RAN is supported and the current 5G-RAN cell is allowed to be used.
  • the status indication one can also be represented in such a way. It should be understood that the above-described embodiments are merely examples, and the status indication may indicate different states by different values of 2 bits, and the present disclosure is not limited in this regard.
  • the number of bits occupied by the status indication 1 and the status indication 2 may be the same or different, and may even be represented by more than 2 bits, and the disclosure is not limited herein.
  • the status indication 1 and the status indication 2 may be represented by 1 bit respectively; or the status indication 1 and the status indication 2 may be represented by 2 bits respectively; or the status indication 1 and the status indication 2 may respectively use 2 or more bits. Representation; or 1 bit for status indication 1 and 2 bits for status indication 2 and vice versa.
  • the status indication one and the status indication two can be broadcast in the same system information (such as SIB). Alternatively, the status indication one and the status indication two may be broadcast in different system information.
  • the user equipment may receive the two cell status indications (the status indication 1 and the status indication 2) of the cell by receiving the system information broadcasted by the cell in step s210. Then, in step s220, the UE may determine whether to use the cell as a candidate for cell selection/reselection based on the network type selected by the UE and the status indication one and the status indication 2 in the received system information.
  • step s220 is described in detail below by way of several examples.
  • step s220 the UE may determine whether to use the current cell (ie, received) based on the network type cell status indication corresponding to the network type (access network type/core network type) selected by the UE in the received system information. Cell corresponding to system information) Candidate/reselected candidate cells.
  • the UE can choose a network type (access network type/core network type) in a variety of ways. Several example ways are listed below:
  • the UE receives an indication from its upper layer (non-access stratum or higher layer) regarding the selected access network type/core network type.
  • the selected access network type/core network type is usually agreed upon when the UE signs an access protocol with the operator.
  • the UE may obtain information about the priority of the access network type/core network type from the system information broadcast by the serving cell or the proprietary signaling sent by the network side, and select according to the priority information. Determine the access network type / core network type.
  • the UE may select an access network type/core network type according to the core network type it has registered.
  • the UE will check the corresponding status indication in the received system information based on the selected type of access network/core network, and determine whether the current cell will be determined accordingly ( That is, the cell corresponding to the received system information is used as a candidate cell for cell selection/reselection.
  • the UE selects the 5G-RAN type/NextGen Core type according to any of the foregoing methods, and the UE detects the received type corresponding to the 5G-RAN type/NextGen Core type.
  • the status indicates two.
  • the status indication 2 is represented by 1 bit, and "0" and “1" are respectively used to indicate an example in which the 5G-RAN is “prohibited” and “allowed”.
  • the UE may use the current cell as one of the candidate cells for 5G-RAN cell selection/reselection; if the received status indicates the value of the second If it is "0", the UE may not use the current cell as one of the candidate cells for 5G-RAN cell selection/reselection for a period of time, or exclude the current cell from 5G-RAN cell selection/reselection for a period of time. Outside the candidate cell.
  • the state indication two is considered to use a 2-bit representation, and "00", “10", and “11” are respectively used to indicate an example in which the 5G-RAN is “not supported”, “prohibited”, and “allowed”.
  • the UE may use the current cell as one of the candidate cells for 5G-RAN cell selection/reselection; when the received status indicates two
  • the UE may not use the current cell as one of the candidate cells for 5G-RAN cell selection/reselection for a period of time, or exclude the current cell from the candidate cell of the 5G-RAN for a period of time.
  • the UE When the value of the received status indication 2 is "00", the UE considers that the current cell does not support the working mode of the 5G-RAN, so the UE can exclude the current cell as the candidate cell for cell selection/reselection, and will
  • the 5G-RAN cell is set to a low priority cell and, optionally, triggers a priority based cell reselection.
  • the UE selects the E-UTRAN type/EPC type according to any of the foregoing methods, and the UE detects the received status indication one corresponding to the E-UTRAN type/EPC type.
  • the status indication is expressed using 1 bit, and "0" and “1" are respectively used to indicate an instance in which the E-UTRAN is “prohibited” and “allowed”.
  • the UE may use the current cell as one of the candidate cells for E-UTRAN cell selection/reselection; if the received status indicates the value of one If it is "0", the UE may not use the current cell as one of the candidate cells for E-UTRAN cell selection/reselection for a period of time, or exclude the current cell from E-UTRAN cell selection/reselection for a period of time. Outside the candidate cell.
  • the UE may use the current cell as one of the candidate cells for E-UTRAN cell selection/reselection; when the value of the received status indication 1 is "10", the UE may not use the current cell as one of the candidate cells for E-UTRAN cell selection/reselection for a period of time, or exclude the current cell from the candidate cell of the E-UTRAN for a period of time;
  • the UE considers that the current cell does not support the E-UTRAN working mode, and then the UE may exclude the current cell as the candidate cell for cell selection/reselection, and the current E-UTRAN The cell is set to a low priority cell and, optionally, triggers a priority based cell
  • step s220 the UE may check the received status indication 1 and status indication 2 to determine whether the current cell is used as a candidate cell for cell selection/reselection.
  • the UE checks both the received status indication 1 and the status indication 2,
  • the UE can use the current cell as one of the candidate cells for cell selection/reselection if and only if both indicate that the use is allowed; otherwise, the UE excludes the cell as long as there is a status indication indicating that the current cell is forbidden to use. Outside the candidate cell for cell selection/reselection.
  • the UE checks both the received status indication 1 and the status indication 2, and if and only if both indicate that the use is prohibited, the UE excludes the cell from the candidate cell for cell selection/reselection; Otherwise, the UE uses the current cell as one of the candidate cells for cell selection/reselection as long as there is a status indication indicating that the current cell is allowed to use. In this case, the UE may also report the access network type/network type indicated in the status indication to the upper layer.
  • FIG. 3 schematically illustrates a flow diagram of a method 300 performed in an eLTE base station in accordance with a second embodiment of the present disclosure.
  • the base station generates a system information block (SIB).
  • SIB system information block
  • the system information includes at least a first cell reservation indication corresponding to a first network type (access network type/core network type) and a second cell reservation corresponding to a second network type (access network type/core network type) Instructions.
  • the base station broadcasts the generated system information in its cell.
  • FIG. 4 schematically illustrates a flow diagram of a method 400 performed in a User Equipment (UE) in accordance with a second embodiment of the present disclosure.
  • UE User Equipment
  • the user equipment can receive system information of the cell.
  • the system information includes at least a first cell reservation indication corresponding to the first access network type/core network type and a second cell reservation indication corresponding to the second access network type/core network type.
  • the user equipment may determine whether to use the cell as a cell selection/heavy by using a network type (access network type/core network type) selected by the user equipment and a corresponding cell reservation indication in the received system information. Selected candidate cell.
  • a network type access network type/core network type
  • the cell reservation information corresponding to different network types is simultaneously broadcasted in the system information of the cell broadcast, that is, corresponding to the first network type (access network type/
  • the first cell reservation indication (referred to as reservation indication one for the core network type)
  • the second cell reservation indication (referred to as reservation indication 2) corresponding to the second network type (access network type/core network type).
  • the reservation indication one may indicate whether the E-UTRAN cell is reserved; the reservation indication two may indicate whether the 5G-RAN cell is reserved.
  • the reservation indication may be represented, for example, by a 1-bit symbol to indicate whether the corresponding access network type/network type cell (E-UTRAN cell or 5G-RAN cell) is reserved for use. For example, when the reservation indication one is “0”, it indicates that the E-UTRAN cell is reserved for use; when the reservation indication one is “1”, it indicates that the E-UTRAN cell is not reserved for use.
  • the reservation indication 2 can also be represented by such a method. When the reservation indication 2 is “0”, it indicates that the 5G-RAN cell is reserved for use; when the reservation indication 2 is “1”, it indicates that the 5G-RAN cell is not reserved for use.
  • reservation indication may also mean “reserved use” with a value of "1”, and “non-reserved use” with a value of "0”, and the present disclosure is not limited in this respect.
  • These two reservation indications can be broadcast in the same system information (such as SIB). Alternatively, the two reservation indications can also be broadcast in different system information.
  • the UE may determine, according to the content of the reservation indication, whether the current cell can be used as the candidate cell for cell selection/reselection.
  • the implementation of step s420 is described in detail below by way of several examples.
  • step s420 the UE may determine whether to use the current cell as a candidate cell for cell selection/reselection based on a reservation indication corresponding to the access network type/core network type selected by the UE in the received system information.
  • the manner in which the UE selects the access network type/core network type has been described in detail in the first embodiment, and details are not described herein again.
  • the UE may select the access network/core network type in any of the ways described in the first embodiment.
  • the UE then checks the received reservation indication corresponding to the selected access network/core network type according to the selected access network/core network type, and accordingly determines whether the current cell is used as a candidate for cell selection/reselection. Community.
  • the UE selects the 5G-RAN type/NextGen Core type according to any of the foregoing methods, and the UE checks the received type corresponding to the 5G-RAN type/NextGen Core type.
  • the reservation indication is two.
  • the UE may use the current cell as one of the candidate cells for 5G-RAN cell selection/reselection.
  • the value of the reserved indication 2 is “0”, it indicates that the current cell is reserved for use, then The UE can make the following judgment according to its access level:
  • the UE may use the current cell as one of candidate cells for 5G-RAN cell selection/reselection;
  • the UE may not use the current cell as one of the candidate cells for 5G-RAN cell selection/reselection for a period of time, Or the current cell is excluded from the candidate cell of the 5G-RAN cell selection/reselection for a period of time.
  • the UE selects the E-UTRAN type/EPC type according to any of the foregoing methods, and the UE detects the received reservation indication one corresponding to the E-UTRAN type/EPC type.
  • reservation indication one using a 1-bit representation, and using "0" and “1” respectively, respectively, indicates that the E-UTRAN is “reserved for use” and “non-reserved use”.
  • the UE may use the current cell as one of the candidate cells for E-UTRAN cell selection/reselection.
  • the value of the reserved indication one is “0”, indicating that the current cell is reserved for use, the UE may perform the following determination according to the access level:
  • the UE may use the current cell as one of candidate cells for E-UTRAN cell selection/reselection;
  • the UE may not use the current cell as one of the candidate cells for E-UTRAN cell selection/reselection for a period of time, Or the current cell is excluded from the candidate cell of the E-UTRAN cell selection/reselection for a period of time.
  • the UE may have different access levels under different access network types/core network types, so the UE needs to first determine its access level according to its selected access network type/core network type, and then follow the The above method determines whether the current cell is used as a candidate cell for cell selection/reselection according to its access level.
  • the UE may be current for a period of time.
  • the cell is excluded from the candidate cell of the 5G-RAN, but this does not prevent the cell from still being a candidate cell for the E-UTRAN cell during this time.
  • the UE reselects the E-UTRAN as the access network type (or selects the ECP as the core network type)
  • the UE checks the value of the reservation indication 1 corresponding to the E-UTRAN, for example, “1”, then the cell It can still be one of the candidate cells for E-UTRAN cell selection/reselection.
  • FIG. 5 schematically illustrates a flow diagram of a method 500 performed in an eLTE base station in accordance with a third embodiment of the present disclosure.
  • the base station generates system information (such as a system information block, SIB).
  • system information includes at least a first function status indication corresponding to the first core network function type and a second function status indication corresponding to the second core network function type.
  • the base station broadcasts the generated system information in its cell.
  • FIG. 6 schematically illustrates a flow diagram of a method 600 performed in a User Equipment (UE) in accordance with a third embodiment of the present disclosure.
  • UE User Equipment
  • the user equipment can receive system information of the cell.
  • the system information includes at least a first function status indication corresponding to the first core network function type and a second function status indication corresponding to the second core network function type.
  • the user equipment may determine whether the cell is used as a candidate cell for cell selection/reselection based on a core network function selected by the user equipment and a corresponding functional status indication in the received system information.
  • next generation core network can be logically divided into different network segments according to the service type or service characteristics, and each network slice supports its own core network function to provide services for a specific user group. Therefore, depending on the network slice to which the base station is connected, the cell of the base station may support different core network functions.
  • a function status indication of a plurality of different core network function types is broadcasted in the system information of the cell broadcast, such as a first function status indication (referred to as NS1) corresponding to the first core network function type, and corresponding A second functional status indication (referred to as NS2) of the second core network function type.
  • NS1 a first function status indication
  • NS2 a second functional status indication
  • NS1 indicates the state of the first core network function
  • NS2 indicates the state of the second core network function.
  • NS2 can also be represented by such methods. For example, when NS2 is “0”, it indicates that the second core network function is prohibited from being used; when the function status indication two is “1”, it indicates that the second core network function is allowed to be used.
  • NS2 can also be represented by such methods. For example, when NS2 is “0”, it indicates that the second core network function is not supported; when NS2 is “1”, it indicates that the second core network function is not supported.
  • the functional status indication 2 can also be represented in such a manner.
  • the UE may select a corresponding core network function according to its service type or subscription information or a high-level indication, and check a corresponding functional status indication of the core network function to determine whether the current cell (ie, the cell corresponding to the received system information) is to be used.
  • a candidate cell as a cell selection/reselection.
  • the UE receives an indication of a service type from an upper layer, the indication indicating a core network function to be selected;
  • the UE when the UE selects the first core network function, it checks the corresponding function status indication NS1 of the first core network function, and accordingly determines whether the current cell is used as the candidate cell for cell selection/reselection.
  • the UE may use the current cell as one of the candidate cells for cell selection/reselection; when the value of NS1 is “0” If the first core network function is not supported, the UE may not use the current cell as one of the candidate cells for cell selection/reselection, or exclude the current cell from the candidate for cell selection/reselection within a certain period of time. Outside the cell, the UE adds the cell to the blacklist, does not treat it as a neighbor, or sets the cell to a low priority.
  • the state indication is used as a 2-bit representation, and "00", “10", and “11” are used to respectively represent instances in which the first core network function is "not supported”, “disabled”, and “allowed”.
  • the UE may use the current cell as one of candidate cells for cell selection/reselection; when the value of NS1 is "10" indicates that the first core network function supports but is forbidden to use. The UE may not use the current cell as one of the candidate cells for cell selection/reselection for a period of time, or exclude the current cell from the cell selection for a period of time. If the value of NS1 is "00”, indicating that the first core network function is not supported, the UE may set the current cell as a low priority cell and trigger priority-based cell reselection. .
  • FIG. 7 schematically shows a structural block diagram of an eLTE base station 700 in accordance with an embodiment of the present disclosure.
  • Base station 700 includes a processor 706 (e.g., a microprocessor ( ⁇ P), a digital signal processor (DSP), etc.).
  • Processor 706 can be a single processing unit or a plurality of processing units for performing the steps of the method (e.g., method 100, 300, or 500) performed by the base station described herein.
  • Base station 700 can also include an input unit 702 for receiving signals from other entities, and for The entity provides an output unit 704 for the signal.
  • Input unit 702 and output unit 704 can be arranged as a single entity or as separate entities.
  • base station 700 can include a memory 708, which can be a non-volatile memory or a volatile memory.
  • Memory 708 is, for example, an electrically erasable programmable read only memory (EEPROM), flash memory, and/or a hard disk drive.
  • EEPROM electrically erasable programmable read only memory
  • a computer program 710 is stored on the memory 708, the computer program 710 including code/computer readable instructions that, when executed by the processor 706 in the base station 700, cause the base station 700 to perform, for example, the processes described above in connection with Figures 1, 3, and 5. And any variations thereof.
  • the computer program 710 can be configured as computer program code having, for example, one or more computer program module architectures, which can substantially perform the corresponding steps in the processes illustrated in FIGS. 1, 3, and 5.
  • code means in the embodiment disclosed above in connection with FIG. 7 is implemented as a computer program module that, when executed in processor 706, causes base station 700 to perform the actions described above in connection with Figures 1, 3 and 5, however
  • at least one of the code means can be implemented at least in part as a hardware circuit.
  • Base station 700 can be used to perform the method 100, 300 or 500 described above.
  • FIG. 8 schematically shows a structural block diagram of a user equipment 800 in accordance with an embodiment of the present disclosure.
  • User device 800 includes a processor 806 (eg, a microprocessor ( ⁇ P), a digital signal processor (DSP), etc.).
  • Processor 806 can be a single processing unit or multiple processing units for performing the steps of the method (e.g., method 200, 400, or 600) performed by the user equipment described herein.
  • User equipment 800 may also include an input unit 802 for receiving signals from other entities, and an output unit 804 for providing signals to other entities.
  • Input unit 802 and output unit 804 can be arranged as a single entity or as separate entities.
  • user device 800 can include a memory 808, which can be a non-volatile memory or a volatile memory.
  • Memory 808 is, for example, an electrically erasable programmable read only memory (EEPROM), flash memory, and/or a hard disk drive.
  • a computer program 810 is stored on the memory 808, the computer program 810 including code/computer readable instructions that, when executed by the processor 806 in the user device 800, cause the user device 800 to perform, for example, as described above in connection with Figures 2, 4, and 6. Process and any variations thereof.
  • Computer program 810 can be configured as computer program code having, for example, one or more computer program module architectures, which can substantially perform the corresponding steps in the processes illustrated in Figures 2, 4, and 6.
  • code means in the embodiment disclosed above in connection with FIG. 8 is implemented as a computer program module that, when executed in processor 806, causes user device 800 to perform the actions described above in connection with FIGS. 2, 4, and 6, however, in an alternative embodiment, at least one of the code means can be implemented at least in part as a hardware circuit.
  • User device 800 can be used to perform method 200, 400 or 600 described above.
  • For a specific operation of the user equipment 800 reference may be made to the foregoing description of the method 200, 400 or 600, and details are not described herein again.
  • FIG. 9 schematically shows a structural block diagram of an eLTE base station 900 according to another embodiment of the present disclosure.
  • the base station 900 includes a generation unit 910 and a transmission unit 920.
  • the generating unit 910 can be configured to generate system information (such as SIB).
  • the sending unit 620 can be configured to: broadcast the generated system information.
  • Base station 900 can be used to perform the methods 100, 300, or 500 described above.
  • the specific operation of the base station 900 reference may be made to the foregoing description of the method 100, 300 or 500, and details are not described herein again.
  • FIG. 10 schematically shows a structural block diagram of a user equipment 100 according to another embodiment of the present disclosure.
  • the user device 1000 can include a receiving unit 1010 and a processing unit 1020.
  • the receiving unit 1010 may be configured to: receive system information (such as an SIB) of the cell.
  • the processing unit 1020 may be configured to determine whether the cell is used as a candidate cell for cell selection/reselection based on the received system information.
  • User device 1000 can be used to perform the method 200, 400 or 600 described above.
  • For the specific operation of the user equipment 1000 reference may be made to the foregoing description of the method 200, 400 or 600, and details are not described herein again.
  • base stations and/or user equipment in accordance with embodiments of the present disclosure may also include other basic units that make up the base station and/or user equipment.
  • the method of the present application and the apparatus involved have been described above in connection with the preferred embodiments. Those skilled in the art will appreciate that the methods shown above are merely exemplary. The methods of the present application are not limited to the steps and sequences shown above.
  • the base stations and user equipment shown above may include more modules, for example, may also include modules that may be developed or developed in the future for base stations or UEs, and the like.
  • the various logos shown above are merely exemplary and not limiting, and the application is not limited to specific cells as examples of such identifications. Many variations and modifications can be made by those skilled in the art in light of the teachings of the illustrated embodiments.
  • aspects of the embodiments disclosed herein may be implemented in an integrated circuit as a whole or in part, as one or more of one or more computers running on one or more computers.
  • a computer program eg, implemented as one or more programs running on one or more computer systems
  • implemented as one or more programs running on one or more processors eg, implemented as one or One or more programs running on a plurality of microprocessors, implemented as firmware, or substantially in any combination of the above, and those skilled in the art, in accordance with the present disclosure, will be provided with design circuitry and/or write software and / or firmware code capabilities.
  • signal bearing media include, but are not limited to, recordable media such as floppy disks, hard drives, compact disks (CDs), digital versatile disks (DVDs), digital tapes, computer memories, and the like; and transmission-type media such as digital and / or analog communication media (for example, fiber optic cable, waveguide, wired communication link, wireless communication link, etc.)

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Abstract

本公开的实施例提供了一种确定候选小区的方法，对应的用户设备和基站。所述方法包括：接收小区的系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；以及，基于所接收的系统信息中的网络类型小区状态指示，确定是否将所述小区作为小区选择/重选的候选小区。

Description

确定候选小区的方法、用户设备和基站 技术领域
本公开涉及无线通信技术领域，更具体地，本公开涉及小区选择/重选的方法以及相应的基站和用户设备。
背景技术
随着移动通信的快速增长和技术的巨大进步，世界将走向一个完全互联互通的网络社会，即任何人或任何东西在任何时间和任何地方都可以获得信息和共享数据。预计到2020年，互联设备的数量将达到500亿部，其中仅有100亿部左右可能是手机和平板电脑，其它的则不是与人对话的机器，而是彼此对话的机器。因此，如何设计系统以更好地支持万物互联是一项需要深入研究的课题。
为此，在2016年3月举行的第三代合作伙伴计划(3GPP)RAN#64次全会上，提出了新5G无线接入技术的研究课题(参见非专利文献：RP-160671 New SID Proposal：Study on New Radio Access Technology)。在该工作项目的描述中，未来新的通信制式的工作频段可扩展至100GHz，同时将至少满足增强的移动宽带业务需求、海量物联网终端的通信需求，以及高可靠性要求的业务需求等，该项目研究工作将于2018年结束。
在研究第五代(5G)无线接入技术的同时，支持5G接入的核心网技术的研究也同时开展。这种核心网可以称作下一代核心网(Next Generation Core)。现有的长期演进(Long Term Evolution，简称LTE)系统连接到的核心网称为演进的分组核心网(Evolved Packet Core，简称EPC)。与现有的EPC不同，正在讨论中的下一代核心网将基于不同的服务质量(Qos)架构，因此可以认为是一种不同于EPC的新的核心网类型。
在下一代核心网中还引入了网络片(Network Slice，简称NS)的概念。即下一代核心网在逻辑上可以根据业务类型或者业务特征，划分成不同的网络片，每个网络片支持各自的核心网功能，为特定的用户群提供服务。
在5G接入网技术的研究中，为了避免运营商的重复投资，允许运营商升级已部署的LTE基站，使得其可以与下一代核心网相连，这类新型的基站被称为演进的LTE基站(evolution of LTE eNB，简称eLTE eNB，下文中也称为eLTE基站)。根据TR 38.804的定义，eLTE基站可以支持与EPC的连接以及与下一代核心网的连接。
从接入网侧看，连接EPC的eLTE基站可以被认为是属于E-UTRAN(Evolved Universal Terrestrial Radio Access Network)接入网，而连接下一代核心网的eLTE eNB可以被认为是属于5G-RAN接入网。换言之，根据eLTE基站所连接的核心网类型的不同，一个eLTE基站覆盖的小区有可能是E-UTRAN小区，也有可能是5G-RAN小区，或者还可能既是E-UTRAN小区也是5G-RAN小区。
当eLTE基站同时连接着EPC和下一代核心网时，在eLTE基站覆盖的区域中既存在E-UTRAN小区又存在5G-RAN小区。而且，因为下一代核心网还包括不止一个网络片，在eLTE基站覆盖的区域中还会存支持不同的核心网功能的小区。
对于用户设备(UE)而言，需要新的机制来实现在这样的覆盖区域内进行小区选择/重选。
发明内容
本公开旨在提供一种确定候选小区的方法。
根据本公开的第一方面，提供了一种由基站执行的方法，包括：生成系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；以及，广播所生成的系统信息。
根据本方面的第二方面，提供了一种由用户设备(UE)执行的方法，包括：接收小区的系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；以及，基于所接收的系统信息中的网络类型小区状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
根据一些实施例，第一网络类型小区状态和/或第二网络类型小区状态包括：“允许”或“禁止”。
根据另一些实施例，第一网络类型小区状态和/或第二网络类型小区状态包括：“允许”、“禁止”和“不支持”。
根据一些实施例，当所接收的系统信息中的对应于UE选择的网络类型的网络类型小区状态指示表示“禁止”时，排除将所述小区作为小区选择/重选的候选小区。
根据另一些实施例，当所接收的系统信息中的对应于UE选择的网络类型的网络类型小区状态指示表示“不支持”时，排除将所述小区作为小区选择/重选的候选小区，并将所述小区设置为低优先级。
根据另一些实施例，仅当所接收的系统信息中的第一网络类型小区状态指示和第二网络类型小区状态指示都表示“禁止”时，才排除将所述小区作为小区选择/重选的候选小区。
根据另一些实施例，仅当所接收的系统信息中的第一网络类型小区状态指示和第二网络类型小区状态指示都表示“允许”时，才将所述小区作为小区选择/重选的候选小区。
根据本公开的第三方面，提供了一种由基站执行的方法，包括：生成系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；以及，广播所生成的系统信息。
根据本公开的第四方面，提供了一种由用户设备(UE)执行的方法，包括：接收小区的系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；以及，基于UE选择的核心网功能以及所接收的系统信息中的对应的功能状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
根据一些实施例，对应于第一核心网功能类型的第一功能状态和/或对应于第二核心网功能类型的第二功能状态包括：“允许”和“禁止”。
根据另一些实施例，对应于第一核心网功能类型的第一功能状态和/或对应于第二核心网功能类型的第二功能状态包括：“允许”、“禁止”和“不支持”。
根据本公开的第五方面，提供了一种基站，包括：处理器；以及，存储器，存储指令。所述指令在所述处理器上执行时，使得所述处理器配置为：生成系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；以及，广播所生成的系统信息。
根据本公开的第六方面，提供了一种用户设备(UE)，包括：处理器；以及，存储器，存储指令。所述指令在所述处理器上执行时，使得所述处理器配置为：接收小区的系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；基于所接收的系统信息中的网络类型小区状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
根据本公开的第七方面，提供了一种基站，包括：处理器；以及，存储器，存储指令。所述指令在所述处理器上执行时，使得所述处理器配置为：生成系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；以及，广播所生成的系统信息。
根据本公开的第八方面，提供了一种用户设备(UE)，包括：处理器；以及，存储器，存储指令。所述指令在所述处理器上执行时，使得所述处理器配置为：接收小区的系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；以及，基于UE选择的核心网功能以及所接收的系统信息中的对应的功能状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
根据本公开的第九方面，提供了一种基站，包括：
生成单元，配置为：生成系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；以及，
发送单元，配置为：广播所生成的系统信息。
根据本公开的第十方面，提供了一种用户设备“UE”，包括：
接收单元，配置为：接收小区的系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；以及，
处理单元，配置为：基于所接收的系统信息中的网络类型小区状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
根据本公开的第十一方面，提供了一种基站，包括：
生成单元，配置为：生成系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；以及，
发送单元，配置为：广播所生成的系统信息。
根据本公开的第十二方面，提供了一种用户设备(UE)，包括：
接收单元，配置为：接收小区的系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；以及，
处理单元，配置为：基于UE选择的核心网功能以及所接收的系统信息中的对应的功能状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
附图说明
通过下文结合附图的详细描述，本公开的上述和其它特征将会变得更加明显，其中：
图1示意性地示出了根据本公开第一实施例的在eLTE基站中执行的方法的流程图。
图2示意性地示出了根据本公开第一实施例的在用户设备中执行的方法的流程图。
图3示意性地示出了根据本公开第二实施例的在eLTE基站中执行的方法的流程图。
图4示意性地示出了根据本公开第二实施例的在用户设备中执行的方法的流程图。
图5示意性地示出了根据本公开第三实施例的在eLTE基站中执行的方法的流程图。
图6示意性地示出了根据本公开第三实施例的在用户设备中执行的方法的流程图。
图7示意性地示出了根据本公开实施例的eLTE基站的结构框图。
图8示意性地示出了根据本公开实施例的用户设备的结构框图。
图9示意性地示出了根据本公开另一实施例的eLTE基站的结构框图。
图10示意性地示出了根据本公开另一实施例的用户设备的结构框图。
在附图中，类似的参考标号指示相同或类似的要素。
具体实施方式
下面结合附图和具体实施例对本公开进行详细阐述。应当注意，本公开不应局限于下文所述的具体实施例。另外，为了简便起见，省略了对与本公开没有直接关联的公知技术的详细描述，以防止对本公开的理解造成混淆。
如前所述，在下一代移动通信系统中，例如5G或之后的通信系统中，基站有可能连接到不同类型的核心网，如现有的EPC或者支持不止一个网络片的下一代核心网。当基站连接到不同的核心网类型时，该基站对应于不同的接入网。因此，根据基站所连接的核心网类型的不同，一个基站覆盖的小区可被称为不同的接入网类型/核心网类型小区。因为基站连接到核心网类型与基站所属的接入网之间的对应关系，为了便于起见，将接入网类型/核心网类型统称为“网络类型”，在下文中接入网类型小区、核心网类型小区、接入网类型/核心网类型小区可以互换地使用。例如，连接EPC的eLTE基站的小区可被称为EPC类型小区/E-UTRAN小区。连接下一代核心网的eLTE基站的小区可被称为下一代核心网类型小区/5G-RAN小区。EPC类型小区/E-UTRAN小区可以向其覆盖范围内的用户设备提供EPC核心网功能。下一代核心网类型小区/5G-RAN小区可以向其覆盖范围内的用户设备提供下一代核心网功能。特别地，下一代核心网在逻辑上可以根据业务类型或者业务特征，划分成不同的网络片，每个网络片支持各自的核心网功能。于是，下一代核心网类型小区/5G-RAN小区根据其连接到的网络片可以向其覆盖范围内的用户设备提供不同的核心网功能。
下文以5G移动通信系统作为示例应用环境，具体描述了根据本公开的多个实施方式。在下文中，除非另有明示，基站指的是eLTE基站。然而，需要指出的是，本领域技术人员可以理解，本公开并不限于上述基站、UE、接入网和核心网的示例，也可以用于其他支持多种网络类型的接入的基站、或者支持多种核心网功能的基站、以及在其覆盖范围内的UE。本公开不限于以下实施方式，而是可适用于更多其它的无线通信系统，例如5G之后的移动通信系统。
第一实施例
图1示意性地示出了根据本公开第一实施例的在eLTE基站中执行的方法100的流程图。
如图所示，在步骤s110中，基站生成系统信息(如系统信息块SIB)。所述系统信息至少包括第一网络类型(接入网类型/核心网类型)小区状态指示和第二网络类型(接入网类型/核心网类型)小区状态指示。
在步骤s120，基站在其小区中广播所生成的系统信息。
图2示意性地示出了根据本公开第一实施例的在用户设备(UE)中执行的方法200的流程图。
如图所示，在步骤s210中，用户设备可以接收小区的系统信息。所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示。
在步骤s220中，用户设备可以基于所接收的系统信息中的对应的网络类型小区状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
在该第一实施例中，小区广播的系统信息中同时广播了对应不同的网络类型的小区状态指示，即第一网络类型小区状态指示(简称为状态指示一)和第二网络类型小区状态指示(简称为状态指示一)。
例如，状态指示一可以指示E-UTRAN小区的状态；状态指示二可以指示5G-RAN小区状态。
状态指示可以例如由1比特符号表示，以表示对应的网络类型小区(E-UTRAN小区或5G-RAN小区)的两种状态，如“允许”或“禁止”。例如，当状态指示一为“0”时表示E-UTRAN小区禁止使用；当状态指 示一为“1”时，表示E-UTRAN小区允许使用。同样的，状态指示二也可以用此类方法表示。当状态指示二为“0”时表示5G-RAN小区禁止使用；当状态指示二为“1”时，表示5G-RAN小区允许使用。应该理解上述实施方式仅作为示例，状态指示也可以以值“1”表示“允许”，值“0”表示“禁止”，本公开在这方面不受限制。
可选地，状态指示也可以由2比特符号表示，以表示对应的网络类型小区(E-UTRAN小区或5G-RAN小区)的多于两种状态。作为示例，小区状态可以包括三种状态：“允许”、“禁止”和“不支持”。相应地，当状态指示二为“00”时表示不支持5G-RAN；当状态指示二为“10”时表示支持5G-RAN，但是当前5G-RAN小区禁止使用；当状态指示二为“11”时表示支持5G-RAN且当前5G-RAN小区允许使用。同样的，状态指示一也可以以此类方法表示。应该理解上述实施方式仅作为示例，状态指示可以通过2比特的不同值来指示不同的状态，本公开在这方面不受限制。
此外，状态指示一和状态指示二占用的比特位数可以相同也可以不相同，甚至可以用多于2个比特来表示，本公开在此不受限制。例如，状态指示一和状态指示二可以分别用1比特来表示；或者状态指示一和状态指示二可以分别用2比特来表示；或者状态指示一和状态指示二可以分别用2个以上的比特来表示；或者可以用1比特表示状态指示一，用2比特表示状态指示二，反之亦然。
状态指示一和状态指示二可以在相同的系统信息(如SIB)中广播。可选地，状态指示一和状态指示二可以在不同的系统信息中广播。
用户设备在步骤s210中通过接收小区广播的系统信息，可以接收到该小区的上述两个小区状态指示(状态指示一和状态指示二)。于是，在步骤s220中，UE可以基于该UE选择的网络类型以及所接收的系统信息中的状态指示一和状态指示二，确定是否将该小区作为小区选择/重选的候选。
下面通过若干示例，对步骤s220的实现方式进行详细描述。
方式一：在步骤s220中，UE可以基于所接收的系统信息中与UE选择的网络类型(接入网类型/核心网类型)对应的网络类型小区状态指示，确定是否将当前小区(即接收的系统信息对应的小区)作为小区选 择/重选的候选小区。
UE选择网络类型(接入网类型/核心网类型)可以采用多种方式，下面列出若干示例方式：
1.UE从其上层(非接入层或者高层)接收关于选定的接入网类型/核心网类型的指示。该选定的接入网类型/核心网类型通常是UE与运营商签订入网协议时约定的。
2.可选地，UE可以从服务小区广播的系统信息或者网络侧发来的专有信令中获取关于接入网类型/核心网类型的优先级的信息，并且根据该优先级的信息选定接入网类型/核心网类型。
3.可选地，UE可以根据其已经注册的核心网类型来选定接入网类型/核心网类型。
一旦UE选定接入网/核心网的类型，UE将基于选定的接入网/核心网的类型去检查所接收的系统信息中的对应的状态指示，并相应地确定是否将当前小区(即接收的系统信息对应的小区)作为小区选择/重选的候选小区。
作为一个示例，UE根据前述任一方法选定了5G-RAN类型/下一代核心网(NextGen Core)类型，则UE检测所接收的对应于5G-RAN类型/下一代核心网(NextGen Core)类型的状态指示二。
考虑状态指示二使用1比特表示，且分别使用“0”和“1”表示5G-RAN被“禁止”和“允许”的实例。该在实例中，当所接收的状态指示二的取值为“1”，则UE可将当前小区作为5G-RAN小区选择/重选的候选小区之一；如果所接收的状态指示二的取值为“0”，则UE可在一段时间内不将当前小区作为5G-RAN小区选择/重选的候选小区之一，或者是在一段时间内将当前小区排除在5G-RAN小区选择/重选候选小区之外。
可选地，考虑状态指示二使用2比特表示，且分别使用“00”、“10”和“11”表示5G-RAN被“不支持”、“禁止”和“允许”的实例。在该实例中，当所接收的状态指示二的取值为“11”时，UE可将当前小区作为5G-RAN小区选择/重选的候选小区之一；当所接收的状态指示二的 取值为“10”时，UE可在一段时间内不将当前小区作为5G-RAN小区选择/重选的候选小区之一，或者在一段时间内将当前小区排除在5G-RAN的候选小区之外；当所接收的状态指示二的取值为“00”时，UE认为当前小区不支持5G-RAN的工作方式，于是UE可排除将当前小区作为小区选择/重选的候选小区，并将当前5G-RAN小区设置为低优先级小区，以及可选的，触发基于优先级的小区重选。
作为另一个示例，UE根据前述任一方法选定了E-UTRAN类型/EPC类型，则UE检测所接收的对应于E-UTRAN类型/EPC类型的状态指示一。
考虑状态指示一使用1比特表示，且分别使用“0”和“1”表示E-UTRAN被“禁止”和“允许”的实例。该在实例中，当所接收的状态指示一的取值为“1”，则UE可将当前小区作为E-UTRAN小区选择/重选的候选小区之一；如果所接收的状态指示一的取值为“0”，则UE可在一段时间内不将当前小区作为E-UTRAN小区选择/重选的候选小区之一，或者是在一段时间内将当前小区排除在E-UTRAN小区选择/重选候选小区之外。
可选地，考虑状态指示一使用2比特表示，且分别使用“00”、“10”和“11”表示E-UTRAN被“不支持”、“禁止”和“允许”的实例。在该实例中，当所接收的状态指示一的取值为“11”时，UE可将当前小区作为E-UTRAN小区选择/重选的候选小区之一；当所接收的状态指示一的取值为“10”时，UE可在一段时间内不将当前小区作为E-UTRAN小区选择/重选的候选小区之一，或者在一段时间内将当前小区排除在E-UTRAN的候选小区之外；当所接收的状态指示一的取值为“00”时，UE认为当前小区不支持E-UTRAN的工作方式，于是UE可排除将当前小区作为小区选择/重选的候选小区，并将当前E-UTRAN小区设置为低优先级小区，以及可选的，触发基于优先级的小区重选。
方式二：在步骤s220中，UE可以检查接收到的状态指示一和状态指示二，确定是否将当前小区作为小区选择/重选的候选小区。
作为一个示例，UE检查接收到的状态指示一和状态指示二二者， 当且仅当两者都表示允许使用时，UE才能够将当前小区作为小区选择/重选的候选小区之一；否则，只要有一个状态指示表示当前小区禁止使用，UE就将该小区排除在小区选择/重选的候选小区之外。
作为另一个示例，UE检查接收到的状态指示一和状态指示二二者，当且仅当两者都表示禁止使用时，UE才将该小区排除在小区选择/重选的候选小区之外；否则，只要有一个状态指示表示当前小区允许使用，UE就将当前小区作为小区选择/重选的候选小区之一。在这种情况下，可选地，UE还可以将状态指示中表示允许使用的接入网类型/网络类型上报给上层。
第二实施例
图3示意性地示出了根据本公开第二实施例的在eLTE基站中执行的方法300的流程图。
如图所示，在步骤s310中，基站生成系统信息块(SIB)。所述系统信息至少包括对应于第一网络类型(接入网类型/核心网类型)的第一小区保留指示和对应于第二网络类型(接入网类型/核心网类型)的第二小区保留指示。
在步骤s320，基站在其小区中广播所生成的系统信息。
图4示意性地示出了根据本公开第二实施例的在用户设备(UE)中执行的方法400的流程图。
如图所示，在步骤s410中，用户设备可以接收小区的系统信息。所述系统信息至少包括对应于第一接入网类型/核心网类型的第一小区保留指示和对应于第二接入网类型/核心网类型的第二小区保留指示。
在步骤s420中，用户设备可以用户设备所选择的网络类型(接入网类型/核心网类型)以及所接收的系统信息中的对应的小区保留指示，确定是否将所述小区作为小区选择/重选的候选小区。
在该第二实施例中，小区广播的系统信息中同时广播了对应不同的网络类型(接入网类型/核心网类型)的小区保留指示，即对应于第一网络类型(接入网类型/核心网类型)的第一小区保留指示(简称为保留指示一)和对应于第二网络类型(接入网类型/核心网类型)的第二小区保留指示(简称为保留指示二)。
例如，保留指示一可以指示E-UTRAN小区是否保留；保留指示二可以指示5G-RAN小区是否保留。
保留指示可以例如由1比特符号表示，以表示对应的接入网类型/网络类型小区(E-UTRAN小区或5G-RAN小区)是否被保留使用。例如，当保留指示一为“0”时表示E-UTRAN小区保留使用；当保留指示一为“1”时，表示E-UTRAN小区非保留使用。同样的，保留指示二也可以用此类方法表示。当保留指示二为“0”时表示5G-RAN小区保留使用；当保留指示二为“1”时，表示5G-RAN小区非保留使用。应该理解上述实施方式仅作为示例，保留指示也可以以值“1”表示“保留使用”，值“0”表示“非保留使用”，本公开在这方面不受限制。
这两种保留指示可以在相同的系统信息(如SIB)中广播。可选地，这两种保留指示也可以在不同的系统信息中广播。
UE在步骤s410中接收到上述保留指示后，在步骤s420中可以根据保留指示的内容，判断是否能将当前小区作为小区选择/重选的候选小区。下面通过若干示例，对步骤s420的实现方式进行详细描述。
方式一：在步骤s420中，UE可以基于所接收的系统信息中与UE选择的接入网类型/核心网类型对应的保留指示，确定是否将当前小区作为小区选择/重选的候选小区。
UE选择接入网类型/核心网类型的方式已经在第一实施例中进行了详述，在此不再赘述。UE可以采用第一实施例中描述的任一方式选定接入网/核心网类型。
然后UE根据选定的接入网/核心网类型，检查所接收的对应于选定的接入网/核心网类型的保留指示，并相应地确定是否将当前小区作为小区选择/重选的候选小区。
作为一个示例，UE根据前述任一方法选定了5G-RAN类型/下一代核心网(NextGen Core)类型，则UE检查所接收的对应于5G-RAN类型/下一代核心网(NextGen Core)类型的保留指示二。
考虑保留指示二使用1比特表示，且分别使用“0”和“1”表示5G-RAN被“保留使用”和“非保留使用”的实例。当保留指示二的取值为“1”时，则UE可将当前小区作为5G-RAN小区选择/重选的候选小区之一。当保留指示二的取值为“0”时，表示当前小区保留使用，则 UE可以根据其接入等级进行如下判断：
-当其对应的接入等级属于被允许使用设置为保留使用的小区的接入等级时，UE可将当前小区作为5G-RAN小区选择/重选的候选小区之一；
-当其对应的接入等级不属于被允许使用设置为保留使用的小区的接入等级时，UE可在一段时间内不将当前小区作为5G-RAN小区选择/重选的候选小区之一，或者在一段时间内将当前小区排除在5G-RAN小区选择/重选的候选小区之外。
作为另一个示例，UE根据前述任一方法选定了E-UTRAN类型/EPC类型，则UE检测所接收的对应于E-UTRAN类型/EPC类型的保留指示一。
考虑保留指示一使用1比特表示，且分别使用“0”和“1”表示E-UTRAN被“保留使用”和“非保留使用”的实例。当保留指示一的取值为“1”时，则UE可将当前小区作为E-UTRAN小区选择/重选的候选小区之一。当保留指示一的取值为“0”时，表示当前小区保留使用，则UE可以根据其接入等级进行如下判断：
-当其对应的接入等级属于被允许使用设置为保留使用的小区的接入等级时，UE可将当前小区作为E-UTRAN小区选择/重选的候选小区之一；
-当其对应的接入等级不属于被允许使用设置为保留使用的小区的接入等级时，UE可在一段时间内不将当前小区作为E-UTRAN小区选择/重选的候选小区之一，或者在一段时间内将当前小区排除在E-UTRAN小区选择/重选的候选小区之外。
可选地，UE在不同的接入网类型/核心网类型下的接入等级可能不同，于是UE需要先根据其选定的接入网类型/核心网类型确定其接入等级，然后再按照上述方法根据其接入等级判断是否将当前小区作为小区选择/重选的候选小区。
可选地，UE根据保留指示二的取值，有可能在一段时间内将当前 小区排除在5G-RAN的候选小区之外，但是这并不妨碍该小区在这段时间内仍然可能作为E-UTRAN小区的候选小区。例如，UE接下来重新选定E-UTRAN作为接入网类型(或选择ECP作为核心网类型)，则通过检查E-UTRAN对应的保留指示一的取值，例如为“1”，则该小区还是可以作为E-UTRAN小区选择/重选的候选小区之一。
第三实施例
图5示意性地示出了根据本公开第三实施例的在eLTE基站中执行的方法500的流程图。
如图所示，在步骤s510中，基站生成系统信息(如系统信息块，SIB)。所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示。
在步骤s520，基站在其小区中广播所生成的系统信息。
图6示意性地示出了根据本公开第三实施例的在用户设备(UE)中执行的方法600的流程图。
如图所示，在步骤s610中，用户设备可以接收小区的系统信息。所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示。
在步骤s620中，用户设备可以基于用户设备选择的核心网功能以及所接收的系统信息中的对应的功能状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
如前所述，在下一代核心网中还引入了网络片(NS)的概念。即下一代核心网在逻辑上可以根据业务类型或者业务特征，划分成不同的网络片，每个网络片支持各自的核心网功能，为特定的用户群提供服务。因此，根据基站连接的网络片的不同，基站的小区有可能支持不同的核心网功能。
在该第三实施例中，小区广播的系统信息中广播了多个不同核心网功能类型的功能状态指示，如对应于第一核心网功能类型的第一功能状态指示(简称为NS1)和对应于第二核心网功能类型的第二功能状态指示(简称为NS2)。
NS1指示第一核心网功能的状态；NS2指示第二核心网功能的状态。
NSn(其中n＝1，2)功能状态指示可以由1比特符号表示，以表示对应的核心网功能的两种状态。例如当NS1为“0”时表示第一核心网功能禁止使用；当功能状态指示一为“1”时，表示第一核心网功能允许使用。类似地，NS2也可以用此类方法表示。例如当NS2为“0”时表示第二核心网功能禁止使用；当功能状态指示二为“1”时，表示第二核心网功能允许使用。
可选地，NSn(其中n＝1，2)功能状态指示可以由1比特符号表示，以表示对应的核心网功能的两种状态。例如当NS1为“0”时表示不支持第一核心网功能；当NS1为“1”时，表示支持第一核心网功能。类似地，NS2也可以用此类方法表示。例如当NS2为“0”时表示不支持第二核心网功能；当NS2为“1”时，表示支持第二核心网功能不支持。
可选地，NSn(其中n＝1，2)功能状态指示也可以由2比特符号表示，以表示对应的核心网功能的多于两种状态。例如，当NS1为“00”时表示第一核心网功能不支持且禁止使用；当NS1为“10”时表示第一核心网功能支持但是禁止使用；当NS1为“11”时表示第一核心网功能支持且允许使用。类似地，功能状态指示二也可以以此类方法表示。
UE可以根据其业务类型或者签约信息或者高层的指示来选定对应的核心网功能，检查该核心网功能相应的功能状态指示，以确定是否将当前小区(即所接收的系统信息对应的小区)作为小区选择/重选的候选小区。
UE选择核心网功能可以采用多种方式，下面列出若干示例方式：
1.UE接收来自上层的业务类型的指示，所述指示表明要选择的核心网功能；
2.基于UE的签约信息中所包含的核心网功能的信息进行选择；
3.UE在向核心网注册过程中，与核心网协商后被授权的核心网功能，或者向核心网请求并被接受的核心网功能。
作为一个示例，UE选定第一核心网功能，则检查该第一核心网功能相应的功能状态指示NS1，并且相应地确定是否将当前小区作为小区选择/重选的候选小区。
考虑功能状态指示一使用1比特表示，且分别使用“0”和“1”表 示第一核心网功能被“禁止”和“允许”的实例。在该实例中，当NS1的取值为“1”，表示第一核心网功能允许使用，则UE可将当前小区作为小区选择/重选的候选小区之一；当NS1的取值为“0”，表示第一核心网功能禁止使用，则UE可在一段时间内不将当前小区作为小区选择/重选的候选小区之一，或者在一段时间内将当前小区排除在小区选择/重选的候选小区之外。
可选的，考虑功能状态指示一使用1比特表示，且分别使用“0”和“1”表示第一核心网功能被“不支持”和“支持”的实例。在该实例中，当NS1的取值为“1”，表示支持第一核心网功能，则UE可将当前小区作为小区选择/重选的候选小区之一；当NS1的取值为“0”，表示不支持第一核心网功能，则UE可在一段时间内不将当前小区作为小区选择/重选的候选小区之一，或者在一段时间内将当前小区排除在小区选择/重选的候选小区之外，又或者UE将该小区加入黑名单，不作为邻区对待，又或者将该小区设置为低优先级。
可选地，考虑状态指示一使用2比特表示，且分别使用“00”、“10”和“11”表示第一核心网功能被“不支持”、“禁止”和“允许”的实例。在该实例中，当NS1的取值为“11”，表示第一核心网功能支持且允许使用，则UE可将当前小区作为小区选择/重选的候选小区之一；当NS1的取值为“10”，表示第一核心网功能支持但是禁止使用，UE可在一段时间内不将当前小区作为小区选择/重选的候选小区之一，或者是在一段时间内将当前小区排除在小区选择/重选的候选小区之外；当NS1的取值为“00”，表示不支持第一核心网功能，则UE可将当前小区设置为低优先级小区，并触发基于优先级的小区重选。
图7示意性地示出了根据本公开实施例的eLTE基站700的结构框图。
基站700包括处理器706(例如，微处理器(μP)、数字信号处理器(DSP)等)。处理器706可以是用于执行本文描述的基站执行的方法(如方法100、300或500)的步骤的单一处理单元或者多个处理单元。基站700还可以包括用于从其他实体接收信号的输入单元702、以及用于向其 他实体提供信号的输出单元704。输入单元702和输出单元704可以被布置为单一实体或者是分离的实体。
此外，基站700可以包括存储器708，其可以是非易失性存储器或易失性存储器。存储器708例如是电可擦除可编程只读存储器(EEPROM)、闪存、和/或硬盘驱动器。存储器708上存储计算机程序710，该计算机程序710包括代码/计算机可读指令，其在由基站700中的处理器706执行时使得基站700可以执行例如上面结合图1、3和5所描述的流程及其任何变形。
计算机程序710可被配置为具有例如一个或多个计算机程序模块架构的计算机程序代码，计算机程序模块实质上可以执行图1、3和5所示出的流程中的相应步骤。
尽管上面结合图7所公开的实施例中的代码手段被实现为计算机程序模块，其在处理器706中执行时使得基站700执行上面结合图1、3和5所描述的动作，然而在备选实施例中，该代码手段中的至少一项可以至少被部分地实现为硬件电路。
基站700可以用于执行上述的方法100、300或500。基站700的具体操作可以参考上述关于方法100、300或500的描述，在此不再赘述。
图8示意性地示出了根据本公开实施例的用户设备800的结构框图。
用户设备800包括处理器806(例如，微处理器(μP)、数字信号处理器(DSP)等)。处理器806可以是用于执行本文描述的用户设备执行的方法(如方法200、400或600)的步骤的单一处理单元或者多个处理单元。用户设备800还可以包括用于从其他实体接收信号的输入单元802、以及用于向其他实体提供信号的输出单元804。输入单元802和输出单元804可以被布置为单一实体或者是分离的实体。
此外，用户设备800可以包括存储器808，其可以是非易失性存储器或易失性存储器。存储器808例如是电可擦除可编程只读存储器(EEPROM)、闪存、和/或硬盘驱动器。存储器808上存储计算机程序810，该计算机程序810包括代码/计算机可读指令，其在由用户设备800中的处理器806执行时使得用户设备800可以执行例如上面结合图2、4和6所描述的流程及其任何变形。
计算机程序810可被配置为具有例如一个或多个计算机程序模块架构的计算机程序代码，计算机程序模块实质上可以执行图2、4和6所示出的流程中的相应步骤。
尽管上面结合图8所公开的实施例中的代码手段被实现为计算机程序模块，其在处理器806中执行时使得用户设备800执行上面结合图2、4和6所描述的动作，然而在备选实施例中，该代码手段中的至少一项可以至少被部分地实现为硬件电路。
用户设备800可以用于执行上述的方法200、400或600。用户设备800的具体操作可以参考上述关于方法200、400或600的描述，在此不再赘述。
图9示意性地示出了根据本公开另一实施例的eLTE基站900的结构框图。
如图所示，基站900包括可以生成单元910和发送单元920。生成单元910可以配置用于：生成系统信息(如SIB)。发送单元620可以配置用于：广播所生成的系统信息。
基站900可以用于执行上述的方法100、300或500。基站900的具体操作可以参考上述关于方法100、300或500的描述，在此不再赘述。
图10示意性地示出了根据本公开另一实施例的用户设备100的结构框图。
如图所示，用户设备1000可以包括接收单元1010和处理单元1020。接收单元1010可以配置用于：接收小区的系统信息(如SIB)。处理单元1020可以配置用于：基于所接收的系统信息，确定是否将所述小区作为小区选择/重选的候选小区。
用户设备1000可以用于执行上述的方法200、400或600。用户设备1000的具体操作可以参考上述关于方法200、400或600的描述，在此不再赘述。
本领域技术人员应理解，在图7～图10中的基站和/或用户设备中仅示出了与本公开相关的部件，以避免混淆本公开。然而，本领域技术人员应理解，尽管在图中未示出，但是根据本公开实施例的基站和/或用户设备还可以包括构成基站和/或用户设备的其他基本单元。
上文已经结合优选实施例对本申请的方法和涉及的设备进行了描述。本领域技术人员可以理解，上面示出的方法仅是示例性的。本申请的方法并不局限于上面示出的步骤和顺序。上面示出的基站和用户设备可以包括更多的模块，例如还可以包括可以开发的或者将来开发的可用于基站或UE的模块等等。上文中示出的各种标识仅是示例性的而不是限制性的，本申请并不局限于作为这些标识的示例的具体信元。本领域技术人员根据所示实施例的教导可以进行许多变化和修改。
以上的详细描述通过使用示意图、流程图和/或示例，已经阐述了在eLTE基站覆盖的区域中进行小区选择/重选的方法、相应的用户设备和基站的众多实施例。在这种示意图、流程图和/或示例包含一个或多个功能和/或操作的情况下，本领域技术人员应理解，这种示意图、流程图或示例中的每一功能和/或操作可以通过各种结构、硬件、软件、固件或实质上它们的任意组合来单独和/或共同实现。在一个实施例中，本公开的实施例所述主题的若干部分可以通过专用集成电路(ASIC)、现场可编程门阵列(FPGA)、数字信号处理器(DSP)、或其他集成格式来实现。然而，本领域技术人员应认识到，这里所公开的实施例的一些方面在整体上或部分地可以等同地实现在集成电路中，实现为在一台或多台计算机上运行的一个或多个计算机程序(例如，实现为在一台或多台计算机系统上运行的一个或多个程序)，实现为在一个或多个处理器上运行的一个或多个程序(例如，实现为在一个或多个微处理器上运行的一个或多个程序)，实现为固件，或者实质上实现为上述方式的任意组合，并且本领域技术人员根据本公开，将具备设计电路和/或写入软件和/或固件代码的能力。此外，本领域技术人员将认识到，本公开所述主题的机制能够作为多种形式的程序产品进行分发，并且无论实际用来执行分发的信号承载介质的具体类型如何，本公开所述主题的示例性实施例均适用。信号承载介质的示例包括但不限于：可记录型介质，如软盘、硬盘驱动器、紧致盘(CD)、数字通用盘(DVD)、数字磁带、计算机存储器等；以及传输型介质，如数字和/或模拟通信介质(例如，光纤光缆、波导、有线通信链路、无线通信链路等)
尽管以上已经结合本公开的优选实施例示出了本公开，但是本领域 的技术人员将会理解，在不脱离本公开的精神和范围的情况下，可以对本公开进行各种修改、替换和改变。因此，本公开不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (32)

  1. 一种由用户设备“UE”执行的方法，包括：
    接收小区的系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；
    基于所接收的系统信息中的网络类型小区状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
  2. 根据权利要求1所述的方法，其中，第一网络类型小区状态和/或第二网络类型小区状态包括：“允许”或“禁止”。
  3. 根据权利要求1所述的方法，其中，第一网络类型小区状态和/或第二网络类型小区状态包括：“允许”、“禁止”和“不支持”。
  4. 根据权利要求2或3所述的方法，其中，当所接收的系统信息中的对应于UE选择的网络类型的网络类型小区状态指示表示“禁止”时，排除将所述小区作为小区选择/重选的候选小区。
  5. 根据权利要求3所述的方法，其中，当所接收的系统信息中的对应于UE选择的网络类型的网络类型小区状态指示表示“不支持”时，排除将所述小区作为小区选择/重选的候选小区，并将所述小区设置为低优先级。
  6. 根据权利要求2或3所述的方法，其中，仅当所接收的系统信息中的第一网络类型小区状态指示和第二网络类型小区状态指示都表示“禁止”时，才排除将所述小区作为小区选择/重选的候选小区。
  7. 根据权利要求2或3所述的方法，其中，仅当所接收的系统信息中的第一网络类型小区状态指示和第二网络类型小区状态指示都表示“允许”时，才将所述小区作为小区选择/重选的候选小区。
  8. 一种由基站执行的方法，包括：
    生成系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；以及
    广播所生成的系统信息。
  9. 一种由用户设备“UE”执行的方法，包括：
    接收小区的系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；
    基于UE选择的核心网功能以及所接收的系统信息中的对应的功能状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
  10. 根据权利要求9所述的方法，其中：对应于第一核心网功能类型的第一功能状态和/或对应于第二核心网功能类型的第二功能状态包括：“允许”和“禁止”。
  11. 根据权利要求9所述的方法，其中：对应于第一核心网功能类型的第一功能状态和/或对应于第二核心网功能类型的第二功能状态包括：“允许”、“禁止”和“不支持”。
  12. 根据权利要求10或11所述的方法，其中，当所接收的系统信息中的对应于UE选择的核心网功能的功能状态指示表示“禁止”时，排除将所述小区作为小区选择/重选的候选小区。
  13. 根据权利要求11所述的方法，其中，当所接收的系统信息中的对应于UE选择的核心网功能的功能状态指示表示“不支持”时，排除将所述小区作为小区选择/重选的候选小区，并将所述小区设置为低优先级。
  14. 一种由基站执行的方法，包括：
    生成系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；以及
    广播所生成的系统信息。
  15. 一种用户设备“UE”，包括：
    处理器；以及
    存储器，存储指令，所述指令在所述处理器上执行时，使得所述处理器配置为：
    接收小区的系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；
    基于所接收的系统信息中的网络类型小区状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
  16. 根据权利要求15所述的UE，其中，第一网络类型小区状态和/或第二网络类型小区状态包括：“允许”或“禁止”。
  17. 根据权利要求15所述的UE，其中，第一网络类型小区状态和/或第二网络类型小区状态包括：“允许”、“禁止”和“不支持”。
  18. 根据权利要求15或16所述的UE，其中，所述处理器还配置为：当所接收的系统信息中的对应于UE选择的网络类型的网络类型小区状态指示表示“禁止”时，排除将所述小区作为小区选择/重选的候选小区。
  19. 根据权利要求17所述的UE，其中，所述处理器还配置为：当所接收的系统信息中的对应于UE选择的网络类型的网络类型小区状态指示表示“不支持”时，排除将所述小区作为小区选择/重选的候选小区，并将所述小区设置为低优先级。
  20. 根据权利要求16或17所述的UE，其中，所述处理器还配置为：仅当所接收的系统信息中的第一网络类型小区状态指示和第二网络类型小区状态指示都表示“禁止”时，才排除将所述小区作为小区选择/重选的候选小区。
  21. 根据权利要求16或17所述的UE，其中，所述处理器还配置为：仅当所接收的系统信息中的第一网络类型小区状态指示和第二网络类型小区状态指示都表示“允许”时，才将所述小区作为小区选择/重选的候选小区。
  22. 一种基站，包括：
    处理器；以及
    存储器，存储指令，所述指令在所述处理器上执行时，使得所述处理器配置为：
    生成系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；以及
    广播所生成的系统信息。
  23. 一种用户设备“UE”，包括：
    处理器；以及
    存储器，存储指令，所述指令在所述处理器上执行时，使得所述处理器配置为：
    接收小区的系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；
    基于UE选择的核心网功能以及所接收的系统信息中的对应的功能状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
  24. 根据权利要求23所述的UE，其中：对应于第一核心网功能类型的第一功能状态和/或对应于第二核心网功能类型的第二功能状态包括：“允许”和“禁止”。
  25. 根据权利要求23所述的UE，其中：对应于第一核心网功能类型的第一功能状态和/或对应于第二核心网功能类型的第二功能状态包括：“允许”、“禁止”和“不支持”。
  26. 根据权利要求24或25所述的UE，其中，所述处理器还配置为：当所接收的系统信息中的对应于UE选择的核心网功能的功能状态指示表示“禁止”时，排除将所述小区作为小区选择/重选的候选小区。
  27. 根据权利要求25所述的UE，其中，所述处理器还配置为：当所接收的系统信息中的对应于UE选择的核心网功能的功能状态指示表示“不支持”时，排除将所述小区作为小区选择/重选的候选小区，并将所述小区设置为低优先级。
  28. 一种基站，包括：
    处理器；以及
    存储器，存储指令，所述指令在所述处理器上执行时，使得所述处理器配置为：
    生成系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；以及
    广播所生成的系统信息。
  29. 一种用户设备“UE”，包括：
    接收单元，配置为：接收小区的系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；
    处理单元，配置为：基于所接收的系统信息中的网络类型小区状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
  30. 一种基站，包括：
    生成单元，配置为：生成系统信息，所述系统信息至少包括第一网络类型小区状态指示和第二网络类型小区状态指示；以及
    发送单元，配置为：广播所生成的系统信息。
  31. 一种用户设备“UE”，包括：
    接收单元，配置为：接收小区的系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；
    处理单元，配置为：基于UE选择的核心网功能以及所接收的系统信息中的对应的功能状态指示，确定是否将所述小区作为小区选择/重选的候选小区。
  32. 一种基站，包括：
    生成单元，配置为：生成系统信息，所述系统信息至少包括对应于第一核心网功能类型的第一功能状态指示和对应于第二核心网功能类型的第二功能状态指示；以及
    发送单元，配置为：广播所生成的系统信息。
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