WO2021197453A1 - 小区选择或重选的方法和设备 - Google Patents

小区选择或重选的方法和设备 Download PDF

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Publication number
WO2021197453A1
WO2021197453A1 PCT/CN2021/085160 CN2021085160W WO2021197453A1 WO 2021197453 A1 WO2021197453 A1 WO 2021197453A1 CN 2021085160 W CN2021085160 W CN 2021085160W WO 2021197453 A1 WO2021197453 A1 WO 2021197453A1
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Prior art keywords
cell
slice
information
slice information
terminal device
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Application number
PCT/CN2021/085160
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English (en)
French (fr)
Inventor
文鸣
布巴卡金巴·迪·阿达姆
Original Assignee
维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to KR1020227038333A priority Critical patent/KR20220162777A/ko
Priority to EP21780310.5A priority patent/EP4132094A4/en
Publication of WO2021197453A1 publication Critical patent/WO2021197453A1/zh
Priority to US17/949,884 priority patent/US20230016053A1/en

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    • 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
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • 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
    • 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
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular to a method and device for cell selection or reselection.
  • Each segmented virtual network is logically isolated from the terminal device to the access network, from the access network to the core network, and from the core network to the transmission network, and is adapted to the technical requirements of their respective services.
  • Network slicing technology because of its completely "customizable" feature, provides operators with a broad industry application space; at the same time, for upper-level application service providers, network slicing technology can also be used to provide more personalized services.
  • the terminal device does not consider the cell slice when performing cell selection or reselection, and the lack of this mechanism will make the terminal device unable to effectively and quickly access the cell. Therefore, it is necessary to provide a fast cell selection and access mechanism.
  • the purpose of the embodiments of the present invention is to provide a method and device for cell selection or reselection, to solve the problem that the terminal equipment cannot effectively and quickly access because the cell slice is not taken into consideration when the cell selection or reselection is performed.
  • the problem of the community is to provide a method and device for cell selection or reselection, to solve the problem that the terminal equipment cannot effectively and quickly access because the cell slice is not taken into consideration when the cell selection or reselection is performed.
  • a method for cell selection or reselection is provided.
  • the method is executed by a terminal device.
  • the method includes: receiving an MIB message from a cell; In the case of entering a cell, read the SIB message of the cell.
  • the SIB message includes the slice information of the cell (hereinafter referred to as slice) information; according to the slice information supported by the terminal device and the slice information of the cell For slice information, a slice is selected for access from the slices of the cell.
  • a method for cell selection or reselection is provided, the method is executed by a network device, and the method includes: sending a system message, the system message includes an MIB message and a SIB message, and the SIB message includes a cell
  • the slice information of the cell is used by the terminal device to select a slice from the slices of the cell to access according to the slice information it supports and the slice information of the cell.
  • a terminal device in a third aspect, includes: a receiving module for receiving MIB messages from a cell; a reading module for determining that the cell can become a candidate access cell based on the MIB message In the case of reading the SIB message of the cell, the SIB message includes the slice information of the cell; the access module is used to obtain information from the cell according to the slice information supported by the terminal device and the slice information of the cell. Select a slice from the slices of the cell to access.
  • a network device in a fourth aspect, includes: a sending module for sending system messages, the system messages include MIB messages and SIB messages, the SIB messages include slice information of a cell; and the slice information It is used for the terminal equipment to select a slice from the slices of the cell to access according to the slice information supported by itself and the slice information of the cell.
  • a terminal device in a fifth aspect, includes a processor, a memory, and a computer program stored on the memory and running on the processor.
  • the computer program When the computer program is executed by the processor, The steps of the method for cell selection or reselection as described in the first aspect are implemented.
  • a network device in a sixth aspect, includes a processor, a memory, and a computer program that is stored on the memory and can run on the processor.
  • the computer program is executed by the processor, The method for cell selection or reselection as described in the second aspect is implemented.
  • a computer-readable storage medium is provided, and a computer program is stored on the computer-readable storage medium. The method of cell selection or reselection.
  • the SIB message of the cell includes the slice information of the cell, and the terminal device can read the SIB message when it is determined according to the MIB message that the cell can become a candidate access cell.
  • the slice information of the cell and the slice information of the cell select a slice from the slice of the cell to access.
  • the terminal device can directly select a slice that it supports and is available to the cell for access, and can effectively and quickly access the cell.
  • Fig. 1 is a schematic flowchart of a method for cell selection or reselection according to an embodiment of the present invention
  • Fig. 2 is a schematic flowchart of a method for cell selection or reselection according to another embodiment of the present invention
  • Fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • Figure 4 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • Fig. 5 is a schematic structural diagram of a terminal device according to another embodiment of the present invention.
  • Fig. 6 is a schematic structural diagram of a network device according to another embodiment of the present invention.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • LTE Time Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • terminal equipment may include, but is not limited to, a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a user equipment (User Equipment, UE), and a mobile phone (handset).
  • the terminal equipment can communicate with one or more core networks through a radio access network (Radio Access Network, RAN), for example, the terminal equipment can be a mobile phone (or It is called a "cellular" phone), a computer with wireless communication function, etc.
  • the terminal device can also be a portable, pocket-sized, handheld, built-in computer or a mobile device in a vehicle.
  • a network device is a device deployed in a wireless access network to provide wireless communication functions for terminal devices.
  • the network device may be a base station, and the base station may include various forms of macro base stations, micro base stations, relay stations, and access points.
  • the names of devices with base station functions may be different.
  • an evolved NodeB evolved NodeB, eNB or eNodeB
  • 3G third generation
  • NodeB Node B
  • 5G 5G system
  • gNB Generation Node B
  • gNB network equipment in subsequent evolved communication systems, etc., however, the terminology does not constitute a restriction.
  • the related art lacks a mechanism for supporting terminal equipment to select and reselect cells based on slices.
  • the lack of this mechanism will make the terminal equipment unable to effectively and quickly access the cell.
  • a terminal device accesses a cell, it needs to switch frequently until it is switched to a certain cell and the slice in the cell is a type that the terminal device can support, then cell selection or reselection can be completed.
  • the embodiments of the present invention provide a method for cell selection or reselection, so that a terminal device can quickly implement "slice-based cell selection or reselection".
  • an embodiment of the present invention provides a method 100 for cell selection or reselection.
  • the method may be executed by a terminal device.
  • the method may be executed by software or hardware installed on the terminal device.
  • the method includes the following steps.
  • S102 Receive a master information block (Master Information Block, MIB) message from the cell.
  • MIB Master Information Block
  • SIB System Information Block
  • the SIB message includes the cell's slice (hereinafter referred to as slice). )information.
  • the slice information of the cell in the SIB message may include: information used to indicate whether slices are supported. If the information used to indicate whether slices are supported is slices, the slice information of the cell may also include the identification information of the slices that are supported.
  • the slice identification information may include at least one of the following: slice identification (ID), slice type (type), tenant type, tenant identification, network function identification, etc. In a specific implementation, the existence of the slice identification information can be used to indicate to the terminal device that the cell supports slices.
  • determining that the cell can be a candidate access cell in this step includes at least one of the following: determining that the cell status indication of the cell is non-barred according to the MIB message; the MIB message includes the slice information supported by the terminal device logo.
  • determining that the cell can become a candidate access cell in this step includes: the "cell status" in the MIB message indicates: “not barred", and the "cell status" in the SIB message The instructions are: “not reserved for operator use” and "not true for other use”.
  • determining that the cell can be a candidate access cell in this step includes: the MIB message of the cell includes slice information used to indicate that the cell supports, and the slice information mentioned here may be a unique identifier Slice information, such as slice ID, etc.
  • the terminal device reads the slice it supports from the MIB message, it continues to read the SIB message of the cell; in other examples, when the terminal device does not read the slice it supports from the MIB message, it does not Read the SIB message of the cell and give up access to the cell.
  • the terminal device can roughly determine which cell to select for access based on the MIB messages of multiple cells, that is, the terminal device can only read The MIB message can know whether to select a cell for access, so that the terminal device can effectively and quickly access the cell.
  • the terminal device can continue to read the SIB message to read the slice information of the cell.
  • determining that the cell can become a candidate access cell in this step includes: determining, according to the MIB message, that the cell status indication of the cell is not barred, and the "cell status" indication in the SIB message is: not being The operator’s reservation and other uses are not true; and the MIB message includes the identifier of the slice supported by the terminal device.
  • S106 According to the slice information supported by the terminal device and the slice information of the cell, select a slice from the slices of the cell for access.
  • the terminal device can identify one or more slices supported by the terminal device and available to the cell from the slice information of the cell: if the identified slice is one, the terminal device can directly select the slice for access; If the identified slice is multiple, the terminal device can select one slice from the multiple slices to access, for example, randomly select a slice to access, or select the one with the highest priority according to the priority of the multiple slices Slice access.
  • multiple slices of the cell are respectively set with priorities, and the priority (information) can be obtained by reading the SIB message.
  • the SIB message of the cell includes the slice information of the cell, and the terminal device can read the cell if it is determined according to the MIB message that the cell can become a candidate access cell
  • the terminal device can read the cell if it is determined according to the MIB message that the cell can become a candidate access cell
  • a slice is selected for access from the slices of the cell.
  • the terminal device can directly select a slice that it supports and is available to the cell for access, and can effectively and quickly access the cell.
  • the SIB message of the cell includes the slice information of the cell.
  • the SIB message of the cell includes at least one of the following 1) and 2).
  • One or more slice information that can reside in a cell where one slice information (which can be any one of multiple slice information) corresponds to one or more frequency information.
  • One or more frequency information that can reside in a cell where one piece of frequency information (which may be any one of multiple pieces of frequency information) corresponds to one or more slice information.
  • the above-mentioned frequency information includes at least one of the following: frequency information of the same radio access technology (RAT); frequency information across RATs. That is, the aforementioned frequency information may all be in the same RAT; it may also include multiple frequency information across RATs; it may also include multiple frequency information in the first RAT and multiple frequency information in the second RAT.
  • RAT radio access technology
  • the above-mentioned slice information bearing form includes at least one of the following: carrying in the form of bits; carrying in the form of bitmaps.
  • the slice information when the slice information is carried in the form of bits, the number of bits of M bits can be used to encode the slice, and each M-bit code represents a unique slice.
  • all slices supported by the cell when the slice information is carried in the form of a bitmap, all slices supported by the cell can be pre-sorted and compiled into the form of a map, and "1" and "0" represent whether the slice is available.
  • S102 of the embodiment 100 refers to reading the SIB information of the cell, which may specifically be reading the Public Land Mobile Network (Public Land Mobile Network) supported by the terminal equipment in the cell. Available slice information of Mobile Network (PLMN).
  • Public Land Mobile Network Public Land Mobile Network
  • PLMN Available slice information of Mobile Network
  • the terminal device selects the slice corresponding to the PLMN that it can support.
  • the terminal device may first select a slice, and then select appropriate frequency information from one or more frequency information corresponding to the slice; or, the terminal device may first select the frequency information, and then select the frequency information corresponding to the frequency information. Select the appropriate slice from one or more slices (that is, the slice supported by the terminal device and available in the cell).
  • the SIB message of the cell includes the slice information of the cell.
  • the slice information of the cell is also set with a priority.
  • S106 of embodiment 100 may specifically be selected from the slice information of the cell according to the slice information supported by the terminal device, the slice information of the cell, and the priority corresponding to the slice information of the cell. slice access.
  • the slice with the highest priority is selected for access from the multiple slices.
  • the previous embodiments introduced the cell selection process.
  • a terminal device when a terminal device performs cell reselection, if the received radio resource control release (RRC release) message carries the terminal device’s exclusive slice information, Then, the terminal device performs cell slice reselection according to the exclusive slice information.
  • RRC release radio resource control release
  • the network device can switch the terminal device to a dedicated slice according to the subscription information of the terminal device.
  • the above-mentioned exclusive slice information includes at least one of the following 1) to 3).
  • one slice information (which can be any one of multiple slice information) can correspond to one or more frequency information.
  • one piece of frequency information (which can be any one of multiple pieces of frequency information) can correspond to one or more slice information.
  • the above-mentioned frequency information includes at least one of the following: frequency information of the same RAT; frequency information across RATs. That is, the aforementioned frequency information may all be in the same RAT; it may also include multiple frequency information across RATs; it may also include multiple frequency information in the first RAT and multiple frequency information in the second RAT.
  • the above-mentioned bearing form of the slice information of the reselected cell includes at least one of the following: carrying in the form of bits; carrying in the form of bitmaps.
  • the slice information when the slice information is carried in the form of bits, the number of bits of M bits can be used to encode the slice, and each M-bit code represents a unique slice.
  • all slices supported by the cell when the slice information is carried in the form of a bitmap, all slices supported by the cell can be pre-sorted and compiled into the form of a map, and "1" and "0" represent whether the slice is available.
  • the first embodiment mainly introduces the cell selection process of the terminal equipment, and this embodiment includes the following steps.
  • Step 1 When the terminal device selects a cell, it can first read the system message from the cell.
  • the system message includes the MIB message and the SIB message. At least one of the following two steps is executed, that is, only the step 1.1; It is also possible to perform only step 1.2; it is also possible to perform both step 1.1 and step 1.2 at the same time, wherein the order of step 1.1 and step 1.2 in this embodiment is not limited.
  • Step 1.1 The terminal device parses the MIB message and the SIB message, the "cell status" in the MIB message indicates: “not barred”; and the "cell status" in the SIB message indicates: “not reserved for operators” ("Not reserved” for operator use), and “other use is not true” (“not true” for other use), indicating that the current cell can be regarded as a candidate cell.
  • Step 1.2 The MIB message of the cell indicates all slice information supported by the cell, and the terminal device supports reading the MIB messages of multiple cells at the same time, and the following two steps a) and b) are executed in time division.
  • the terminal device first reads the MIB messages of different cells.
  • the slice information in the MIB message has the following two bearer forms (bits or bitmap):
  • slice information can be carried in the form of bits, as shown in Table 1. Assuming that 4 bits are used to represent the slice ID, slice1 can be represented as 0001, slice2 can be represented as 0010, and so on.
  • Table 1 shows that the MIB message from cell 1 indicates that the slices supported by cell 1 include: Slice 1, Slice 2, Slice 3, and Slice 4; the MIB message from cell 2 indicates that the slices supported by cell 2 include: Slice 2. Slice 4, Slice 5 and Slice 8.
  • this embodiment may also use a bitmap to carry slice information, as shown in Table 2.
  • Table 2 Assume that the total number of slices supported by cell 1 and cell 2 are both 8. Among them, the bitmap in the MIB message from cell 1 is 0010 0110. Among them, “1" means that the slice is available, and “0” means that the slice is unavailable, that is, the slices available in cell 1 include: Slice 3, Slice 6, and Slice 7.
  • the bitmap in the MIB message from cell 2 is 1100 0010. Among them, “1” means that the slice is available, and “0” means that the slice is not available, that is, the slices available in cell 2 include: Slice 1, Slice 2, and Slice 7.
  • This embodiment assumes that the slice information in the MIB message is carried in the form of bitmap, and that the slices supported by the terminal device are slice1 and slice2, the terminal device selects cell 2 for access, and continues to read the SIB message of the cell 2 .
  • Step 2 The terminal device continues to read the SIB message of the cell 2.
  • the available slice information of the PLMN supported by the terminal device reads as follows:
  • each slice corresponds to one or more frequency information.
  • the SIB message carries slice information in the form of bits, as shown in Table 3.
  • slice1 can be represented as 0001, slice2 as 0010, and so on.
  • Frequency information (one or more), and each frequency corresponds to one or more slice information.
  • the SIB message carries slice information in the form of bits, as shown in Table 4. Assuming that 4 bits are used to represent the slice ID, then slice1 can be represented as 0001, slice2 as 0010, and so on.
  • the SIB message carries slice information in the form of bitmap, as shown in Table 5. Assume that the cell supports a total of 8 slices, and the bitmap is 0010 0110. Among them, “1" means the slice is available, and “0” means unavailable. That is, for frequency1, slice3, slice6 and slice7 are available.
  • Step 3 The terminal device selects a slice for access according to the slice and frequency types that it can support, as well as the slice and priority (if any) available in the current cell.
  • the terminal device can select the slice with the highest priority from the slices that it supports and are available in the cell for access.
  • the second embodiment introduces the slice-based cell reselection process.
  • the terminal device receives a dedicated signal.
  • the second embodiment includes the following steps.
  • Step 1 When the terminal device performs cell reselection, it receives an RRC release message, and the RRC release message carries the exclusive slice information of the terminal device.
  • the exclusive slice information includes at least one of the following a) to c).
  • the slice information (one or more) that can reside in the "reselected cell", and each slice corresponds to one or more frequency information.
  • the slice information may be carried in the form of bit/bitmap, which is specifically as shown in Embodiment 1. To avoid repetition, the description will not be repeated here.
  • the frequency information (one or more) that can reside in the "reselected cell", and each frequency corresponds to one or more slice information.
  • the slice information may be carried in the form of bit/bitmap, which is specifically as shown in Embodiment 1. To avoid repetition, the description will not be repeated here.
  • Step 2 The terminal device selects a dedicated slice for access according to the slice and frequency types that it can support, as well as the slice and priority (if any) that the current cell can provide.
  • the terminal device can select the slice with the highest priority from the slices that it supports and are available in the cell for access.
  • the priority level please refer to the first embodiment.
  • the cell selection or reselection method according to the embodiment of the present invention is described in detail above with reference to FIG. 1.
  • a method for cell selection or reselection according to another embodiment of the present invention will be described in detail with reference to FIG. 2. It can be understood that the interaction between the network device and the terminal device described from the network device side is the same as the description on the terminal device side in the method shown in FIG. 1, and to avoid repetition, the related description is appropriately omitted.
  • Fig. 2 is a schematic diagram of the implementation process of the cell selection or reselection method according to the embodiment of the present invention, which can be applied to the network device side. As shown in FIG. 2, the method 200 includes the following steps.
  • S202 Send a system message, the system message includes an MIB message and a SIB message, and the SIB message includes slice information of the cell.
  • the slice information of the aforementioned cell is used by the terminal equipment to select a slice from the slices of the cell to access according to the slice information supported by itself and the slice information of the cell.
  • the above MIB message is used by the terminal device to determine whether the cell can be called a candidate access cell.
  • the SIB message of the cell includes the slice information of the cell, and the terminal device can read the SIB message when it is determined according to the MIB message that the cell can become a candidate access cell.
  • the slice information of the cell and the slice information of the cell select a slice from the slice of the cell to access.
  • the terminal device can directly select a slice that it supports and is available to the cell for access, and can effectively and quickly access the cell.
  • the cell status of the cell is indicated as non-barred; and/or the MIB message includes the identifier of the slice supported by the terminal device.
  • the SIB message of the cell includes at least one of the following: one or more slice information of the cell, wherein one slice information corresponds to one or more frequency information; Or multiple frequency information, where one frequency information corresponds to one or more slice information.
  • the slice information of the cell is further set with a priority.
  • the slice information of the cell is used by the terminal device according to the slice information it supports, the slice information of the cell, and the priority corresponding to the slice information of the cell, from the slice information of the cell. Select a slice from slice to access.
  • the method further includes: sending an RRC release message; wherein, the RRC release message carries exclusive slice information of the terminal device, and the exclusive slice information is used by the terminal device to perform Reselection of cell slices.
  • the exclusive slice information includes at least one of the following: information about the reselected cell; information about one or more slices that can reside in the reselected cell, where one slice information corresponds to one or more slices.
  • One frequency information one or more frequency information that can reside in the reselected cell, where one frequency information corresponds to one or more slice information.
  • the carrying form of the slice information of the cell includes at least one of the following: carrying in the form of bits; carrying in the form of bitmaps; carrying form of the slice information of the reselected cell It includes at least one of the following: carrying in the form of bits; carrying in the form of bitmaps.
  • the frequency information includes at least one of the following: frequency information of the same radio access technology; frequency information of cross-radio access technologies.
  • the cell selection or reselection method according to the embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 2.
  • the terminal device according to the embodiment of the present invention will be described in detail below with reference to FIG. 3.
  • Fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 3, the terminal device 300 includes the following modules.
  • the receiving module 302 may be used to receive MIB messages from the cell.
  • the reading module 304 may be configured to read the SIB message of the cell when it is determined according to the MIB message that the cell can become a candidate access cell.
  • the SIB message includes slice information of the cell.
  • the access module 306 may be configured to select a slice from the slices of the cell to access according to the slice information supported by the terminal equipment and the slice information of the cell.
  • the SIB message of the cell includes the slice information of the cell, and the terminal device can read the SIB message when it is determined according to the MIB message that the cell can become a candidate access cell.
  • the slice information of the cell and the slice information of the cell select a slice from the slice of the cell to access.
  • the terminal device can directly select a slice that it supports and is available to the cell for access, and can effectively and quickly access the cell.
  • the reading module 304 may be used to determine that the cell can become a candidate access cell when at least one of the following conditions The cell status is indicated as non-barred; the MIB message includes the identifier of the slice supported by the terminal device.
  • the SIB message of the cell includes at least one of the following: one or more slice information of the cell, wherein one slice information corresponds to one or more frequency information; Or multiple frequency information, where one frequency information corresponds to one or more slice information.
  • the slice information of the cell is further set with a priority.
  • the access module 306 may be configured to: according to the slice information supported by the terminal device, the slice information of the cell, and the priority corresponding to the slice information of the cell, the Select a slice from the slices of the cell to access.
  • the receiving module 302 may be used to receive a radio resource control RRC release message; the access module 306 may be used to if the RRC release message carries exclusive slice information of the terminal device, Reselect cell slices according to the exclusive slice information.
  • the exclusive slice information includes at least one of the following: information about the reselected cell; information about one or more slices that can reside in the reselected cell, where one slice information corresponds to one or more slices.
  • One frequency information one or more frequency information that can reside in the reselected cell, where one frequency information corresponds to one or more slice information.
  • the carrying form of the slice information of the cell includes at least one of the following: carrying in the form of bits; carrying in the form of bitmaps; carrying form of the slice information of the reselected cell It includes at least one of the following: carrying in the form of bits; carrying in the form of bitmaps.
  • the frequency information includes at least one of the following: frequency information of the same radio access technology; frequency information of cross-radio access technologies.
  • the terminal device 300 may refer to the process of the method 100 corresponding to the embodiment of the present invention, and each unit/module in the terminal device 300 and the other operations and/or functions mentioned above are used to implement the corresponding methods in the method 100.
  • Fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in FIG. 4, the network device 400 includes the following modules.
  • the sending module 402 can be used to send system messages.
  • the system messages include MIB messages and SIB messages.
  • the SIB messages include slice information of the cell; the slice information is used by the terminal device according to the slice information it supports and the cell Select a slice from the slices of the cell to access.
  • the SIB message of the cell includes the slice information of the cell, and the terminal device can read the SIB message when it is determined according to the MIB message that the cell can become a candidate access cell.
  • the slice information of the cell and the slice information of the cell select a slice from the slice of the cell to access.
  • the terminal device can directly select a slice that it supports and is available to the cell for access, and can effectively and quickly access the cell.
  • the cell status of the cell is indicated as non-barred; and/or the MIB message includes the identifier of the slice supported by the terminal device.
  • the SIB message of the cell includes at least one of the following: one or more slice information of the cell, wherein one slice information corresponds to one or more frequency information; Or multiple frequency information, where one frequency information corresponds to one or more slice information.
  • the slice information of the cell is further set with a priority.
  • the slice information of the cell is used by the terminal device according to the slice information it supports, the slice information of the cell, and the priority corresponding to the slice information of the cell, from the slice information of the cell. Select a slice from slice to access.
  • the sending module 402 may be used to: send an RRC release message; wherein the RRC release message carries exclusive slice information of the terminal device, and the exclusive slice information is used for the terminal The device reselects the cell slice.
  • the exclusive slice information includes at least one of the following: information about the reselected cell; information about one or more slices that can reside in the reselected cell, where one slice information corresponds to one or more slices. Frequency information;
  • the carrying form of the slice information of the cell includes at least one of the following: carrying in the form of bits; carrying in the form of bitmaps; carrying form of the slice information of the reselected cell It includes at least one of the following: carrying in the form of bits; carrying in the form of bitmaps.
  • the frequency information includes at least one of the following: frequency information of the same radio access technology; frequency information of cross-radio access technologies.
  • the network device 400 can refer to the process of the method 200 corresponding to the embodiment of the present invention, and each unit/module in the network device 400 and the other operations and/or functions described above are used to implement the corresponding steps in the method 200.
  • Fig. 5 is a block diagram of a terminal device according to another embodiment of the present invention.
  • the terminal device 500 shown in FIG. 5 includes: at least one processor 501, a memory 502, at least one network interface 504, and a user interface 503.
  • the various components in the terminal device 500 are coupled together through the bus system 505.
  • the bus system 505 is used to implement connection and communication between these components.
  • the bus system 505 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 505 in FIG. 5.
  • the user interface 503 may include a display, a keyboard, a pointing device (for example, a mouse, a trackball), a touch panel or a touch screen, etc.
  • the memory 502 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM, ESDRAM Synchronous Link Dynamic Random Access Memory
  • Synchlink DRAM Synchronous Link Dynamic Random Access Memory
  • DRRAM Direct Rambus RAM
  • the memory 502 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: operating system 5021 and application programs 5022.
  • the operating system 5021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
  • the application program 5022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services.
  • the program for implementing the method of the embodiment of the present invention may be included in the application program 5022.
  • the terminal device 500 further includes: a computer program stored in the memory 502 and capable of running on the processor 501.
  • a computer program stored in the memory 502 and capable of running on the processor 501.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 501 or implemented by the processor 501.
  • the processor 501 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 501 or instructions in the form of software.
  • the aforementioned processor 501 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present invention may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a computer-readable storage medium that is mature in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the computer-readable storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502, and completes the steps of the foregoing method in combination with its hardware.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 501, each step of the above method embodiment 100 is implemented.
  • the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing equipment (DSP Device, DSPD), programmable Logic devices (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this application Electronic unit or its combination.
  • ASIC application specific integrated circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD programmable Logic Device
  • PLD Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the technology described in the embodiments of the present invention can be implemented by modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present invention.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the terminal device 500 can implement the various processes implemented by the terminal device in the foregoing embodiments, and can achieve the same or equivalent technical effects. To avoid repetition, details are not described herein again.
  • FIG. 6 is a structural diagram of a network device applied in an embodiment of the present invention, which can implement the details of the method embodiment 200 and achieve the same effect.
  • the network device 600 includes: a processor 601, a transceiver 602, a memory 603, and a bus interface, where:
  • the network device 600 further includes: a computer program stored in the memory 603 and capable of running on the processor 601, and the computer program is executed by the processor 601 to implement the steps of the method embodiment 200.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 601 and various circuits of the memory represented by the memory 603 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 602 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 can store data used by the processor 601 when performing operations.
  • the embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored.
  • the computer program When the computer program is executed by a processor, it implements any one of the method embodiment 100 and the method embodiment 200 described above. Each process can achieve the same technical effect. To avoid repetition, I won’t repeat it here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk, or optical disk, etc.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes a number of instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method described in each embodiment of the present invention.
  • a terminal which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

本发明实施例公开了一种小区选择或重选的方法和设备，用以解决终端设备在进行小区选择或重选时，因没有考虑到小区的slice而导致的无法有效和快速接入小区的问题。该方法可以由终端设备执行，包括：接收来自小区的MIB消息；在根据所述MIB消息确定所述小区能够成为候选接入小区的情况下，读取所述小区的SIB消息，所述SIB消息包括所述小区的切片slice信息；根据所述终端设备支持的slice信息以及所述小区的slice信息，从所述小区的slice中选择一个slice接入。

Description

小区选择或重选的方法和设备
交叉引用
本申请要求在2020年04月02日提交中国专利局、申请号为202010256788.8、发明名称为“小区选择或重选的方法和设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及通信领域，尤其涉及一种小区选择或重选的方法和设备。
背景技术
采用网络切片(slice)技术可以在一个硬件基础设施上切分出多个“虚拟”的端到端网络。切分出来的每个虚拟网络从终端设备到接入网、从接入网到核心网、从核心网到传输网都在逻辑上实现完全隔离，并分别适配各自业务的技术需求。
网络切片技术因为其完全的“可定制化”特征，为运营商提供广阔的行业应用空间；同时，对上层应用服务商来说，也可以利用网络切片技术，提供更加个性化的服务。
然而，相关技术中，终端设备在进行小区选择或重选时没有考虑到小区的slice，这种机制的缺失会使得终端设备无法有效和快速地接入小区。因此，有必要提供一种快速的小区选择和接入机制。
发明内容
本发明实施例的目的是提供一种小区选择或重选的方法和设备，用以解决终端设备在进行小区选择或重选时，因没有考虑到小区的slice而导致的无法有效和快速接入小区的问题。
第一方面，提供了一种小区选择或重选的方法，所述方法由终端设备执行，所述方法包括：接收来自小区的MIB消息；在根据所述MIB消息确定 所述小区能够成为候选接入小区的情况下，读取所述小区的SIB消息，所述SIB消息包括所述小区的切片(后文均称作是slice)信息；根据所述终端设备支持的slice信息以及所述小区的slice信息，从所述小区的slice中选择一个slice接入。
第二方面，提供了一种小区选择或重选的方法，所述方法由网络设备执行，所述方法包括：发送系统消息，所述系统消息包括MIB消息和SIB消息，所述SIB消息包括小区的slice信息；所述小区的slice信息用于终端设备根据自身支持的slice信息以及所述小区的slice信息，从所述小区的slice中选择一个slice接入。
第三方面，提供了一种终端设备，该终端设备包括：接收模块，用于接收来自小区的MIB消息；读取模块，用于在根据所述MIB消息确定所述小区能够成为候选接入小区的情况下，读取所述小区的SIB消息，所述SIB消息包括所述小区的slice信息；接入模块，用于根据所述终端设备支持的slice信息以及所述小区的slice信息，从所述小区的slice中选择一个slice接入。
第四方面，提供了一种网络设备，该网络设备包括：发送模块，用于发送系统消息，所述系统消息包括MIB消息和SIB消息，所述SIB消息包括小区的slice信息；所述slice信息用于终端设备根据自身支持的slice信息以及所述小区的slice信息，从所述小区的slice中选择一个slice接入。
第五方面，提供了一种终端设备，该终端设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如第一方面所述的小区选择或重选的方法的步骤。
第六方面，提供了一种网络设备，该网络设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如第二方面所述的小区选择或重选的方法。
第七方面，提供了一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如第一方面和第二 方面中任意一个方面所述的小区选择或重选的方法。
在本发明实施例中，小区的SIB消息中包括有该小区的slice信息，终端设备在根据MIB消息确定该小区能够成为候选接入小区的情况下，即可读取SIB消息，根据终端设备支持的slice信息以及小区的slice信息，从小区的slice中选择一个slice接入。本发明实施例中，终端设备可以直接选择自身支持且小区可用的slice进行接入，可以有效和快速地接入小区。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是根据本发明的一个实施例的小区选择或重选的方法的示意性流程图；
图2是根据本发明的另一个实施例的小区选择或重选的方法的示意性流程图；
图3是根据本发明的一个实施例的终端设备的结构示意图；
图4是根据本发明的一个实施例的网络设备的结构示意图；
图5是根据本发明的另一个实施例的终端设备的结构示意图；
图6是根据本发明的另一个实施例的网络设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。本说明书各个实施例中的“和/或”表示前后两者的至少之一。
应理解，本发明实施例的技术方案可以应用于各种通信系统，例如：长 期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)或全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、5G系统，或者说新无线(New Radio，NR)系统，或者为后续演进通信系统。
在本发明实施例中，终端设备可以包括但不限于移动台(Mobile Station，MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、用户设备(User Equipment，UE)、手机(handset)及便携设备(portable equipment)、车辆(vehicle)等，该终端设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，例如，终端设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等，终端设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
本发明实施例中，网络设备是一种部署在无线接入网中用以为终端设备提供无线通信功能的装置。所述网络设备可以为基站，所述基站可以包括各种形式的宏基站，微基站，中继站，接入点等。在采用不同的无线接入技术的系统中，具有基站功能的设备的名称可能会有所不同。例如在LTE网络中，称为演进的节点B(Evolved NodeB，eNB或eNodeB)，在第三代(3rd Generation，3G)网络中，称为节点B(Node B)，在5G系统中称为下一代节点B(gNB)，或者后续演进通信系统中的网络设备等等，然用词并不构成限制。
相关技术中缺乏一种支持终端设备基于slice对小区进行选择和重选的机制，这种机制的缺失会使得终端设备无法有效和快速地接入小区。当终端设备接入小区后，需要频频进行切换，直到切换到某小区并且该小区内的slice是终端设备可支持的类型，才能够完成小区选择或重选。
为解决上述技术问题，本发明实施例提供一种小区选择或重选的方法，使得终端设备可以快速实现“基于slice进行的小区选择或重选”。
如图1所示，本发明的一个实施例提供一种小区选择或重选的方法100，该方法可以由终端设备执行，换言之，该方法可以由安装在终端设备的软件或硬件来执行，该方法包括如下步骤。
S102：接收来自小区的主信息块(Master Information Block，MIB)消息。
S104：在根据MIB消息确定该小区能够成为候选接入小区的情况下，读取该小区的系统信息块(System Information Block，SIB)消息，该SIB消息包括小区的切片(后文均称作slice)信息。
该实施例中，SIB消息中小区的slice信息可以包括：用于指示是否支持slice的信息。若用于指示是否支持slice的信息为支持slice，则小区的slice信息还可以包括有支持的slice的标识信息。该slice的标识信息可以包括以下至少一项：slice标识(ID)、slice类型(type)、租户类型、租户标识、网络功能标识等。在具体实现中，可以用slice的标识信息的存在来向终端设备指示该小区支持slice。
可选地，作为一个实施例，该步骤中确定小区能够成为候选接入小区包括如下至少之一：根据MIB消息确定出小区的小区状态指示为非禁止；MIB消息包括有终端设备支持的slice的标识。
在一个具体的例子中，该步骤中的确定该小区能够成为候选接入小区包括：MIB消息中的“小区状态”指示为：“非禁止”(not barred)、SIB消息中的“小区状态”指示为：“非为运营商预留”(“not reserved”for operator use)、且“其他用途使用非真”(“not true”for other use)。
在另一个具体的例子中，该步骤中的确定该小区能够成为候选接入小区包括：小区的MIB消息中包括有用于指示该小区支持的slice信息，该处提到的slice信息可以是唯一标识slice的信息，如slice的ID等。当终端设备从MIB消息中读取到自身支持的slice时，继续读取该小区的SIB消息；在其他的例子中，当终端设备从MIB消息中没有读取到自身支持的slice时，不再读取该小区的SIB消息，放弃接入该小区。
该例子中，如果终端支持同时读取多个小区的MIB消息，那么，终端设备基于多个小区的MIB消息即可大概判断出该选择哪个小区进行接入，即，可以让终端设备只读取MIB消息即可知道是否选择某一个小区进行接入，使得终端设备可以有效和快速地接入小区。当然，在其他的例子中，如果slice信息仅携带在SIB消息中，则终端设备可以继续读取SIB消息，以读取小区的slice信息。
在再一个具体的例子中，该步骤中的确定该小区能够成为候选接入小区包括：根据MIB消息确定出小区的小区状态指示为非禁止，SIB消息中的“小区状态”指示为：非为运营商预留以及其他用途使用非真；且该MIB消息包括有终端设备支持的slice的标识。
S106：根据终端设备支持的slice信息以及小区的slice信息，从小区的slice中选择一个slice接入。
该步骤中，终端设备可以从小区的slice信息中识别得到终端设备支持、且小区可用的一个或多个slice：如果识别得到的该slice为一个，则终端设备可以直接选择该slice进行接入；如果识别得到的该slice为多个，终端设备可以从这多个slice中选择一个slice接入，例如，随机选择一个slice接入，或者，根据这多个slice的优先级，选择优先级最高的slice接入，该例子中，小区的多个slice分别设置有优先级，该优先级(信息)可以通过读取SIB消息得到。
本发明实施例提供的小区选择或重选的方法，小区的SIB消息中包括有该小区的slice信息，终端设备在根据MIB消息确定该小区能够成为候选接入小区的情况下，即可读取SIB消息，根据终端设备支持的slice信息以及小区的slice信息，从小区的slice中选择一个slice接入。本发明实施例中，终端设备可以直接选择自身支持且小区可用的slice进行接入，可以有效和快速地接入小区。
在实施例100中提到，在小区的SIB消息中包括有小区的slice信息，在 一个具体实施例中，该小区的SIB消息包括如下1)和2)中的至少之一。
1)小区内能够驻留的一个或多个slice信息，其中，一个slice信息(可以是多个slice信息中的任意一个)对应一个或多个频率信息。
2)小区内能够驻留的一个或多个频率(frequency)信息，其中，一个频率信息(可以是多个频率信息中的任意一个)对应一个或多个slice信息。
可选地，上述频率信息包括如下至少之一：同一无线接入技术(RAT)的频率信息；跨RAT的频率信息。也即，上述频率信息可以均在同一RAT内；也可以包括跨RAT的多个频率信息；也可以包括第一RAT内的多个频率信息以及第二RAT的多个频率信息。
可选地，上述slice信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图(bitmap)的形式进行承载。
具体例如，基于比特的形式承载slice信息时，可以采用M位的比特数对slice进行编码，每一个M位编码代表一个唯一的slice。或者是，基于bitmap的形式承载slice信息时，可以对小区支持的全部slice进行预排序，编成map的形式，并且以“1”和“0”代表该slice是否可用。
上述实施例对slice信息和frequency信息进行了绑定，这样，实施例100的S102中提到读取小区的SIB信息，具体可以是读取该小区内终端设备支持的公共陆地移动网(Public Land Mobile Network，PLMN)的可用的slice信息。
该例子中，由于不同的运营商支持的slice可能不同，因此，终端设备选择自身可支持的PLMN对应的slice。
具体地，终端设备可以先进行slice的选择，然后从与该slice对应的一个或多个频率信息选择合适的频率信息；或者，终端设备可以先进行频率信息的选择，然后从与该频率信息对应的一个或多个slice中选择合适的slice(即终端设备支持，且小区可用的slice)。
在实施例100中提到，在小区的SIB消息中包括小区的slice信息，在一 个具体实施例中，小区的slice信息还设置有优先级。
在小区的slice信息设置有优先级的情况下，实施例100的S106具体可以是根据终端设备支持的slice信息、小区的slice信息以及小区的slice信息对应的优先级，从小区的slice中选择一个slice接入。
上述S106具体例如，在终端设备支持，且小区可用的slice为多个时，从这多个slice中选择优先级最高的slice进行接入。
前文各个实施例介绍的是小区选择的过程，在其他的实施例中，终端设备在进行小区重选时，若接收到的无线资源控制释放(RRCrelease)消息中携带该终端设备的专属slice信息，则终端设备根据该专属slice信息进行小区slice的重选。
该实施例中，网络设备可以根据终端设备的签约信息，使得终端设备切换到专属的slice。
可选地，上述专属slice信息包括如下1)至3)中的至少之一。
1)重选小区的信息，例如，重选小区的标识(ID)。
2)重选小区内能够驻留的一个或多个slice信息，其中，一个slice信息(可以是多个slice信息中的任意一个)可以对应一个或多个频率信息。
3)重选小区内能够驻留的一个或多个频率信息，其中，一个频率信息(可以是多个频率信息中的任意一个)可以对应一个或多个slice信息。
可选地，上述频率信息包括如下至少之一：同一RAT的频率信息；跨RAT的频率信息。也即，上述频率信息可以均在同一RAT内；也可以包括跨RAT的多个频率信息；也可以包括第一RAT内的多个频率信息以及第二RAT的多个频率信息。
可选地，上述重选小区的slice信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图(bitmap)的形式进行承载。
具体例如，基于比特的形式承载slice信息时，可以采用M位的比特数对slice进行编码，每一个M位编码代表一个唯一的slice。或者是，基于bitmap 的形式的形式承载slice信息时，可以对小区支持的全部slice进行预排序，编成map的形式，并且以“1”和“0”代表该slice是否可用。
为详细说明本发明上述实施例提供的小区选择或重选的方法，以下将结合两个具体的实施例进行介绍。
实施例一
实施例一主要介绍的是终端设备的小区选择过程，该实施例包括如下步骤。
步骤1、终端设备在进行小区选择时，可以首先读取来自于小区的系统消息，该系统消息包括MIB消息和SIB消息，执行以下两个步骤的至少之一，也即，可以仅执行步骤该1.1；也可以仅执行步骤该1.2；还可以既执行步骤1.1，同时又执行步骤1.2，其中，该实施例步骤1.1和步骤1.2的先后顺序不进行限定。
步骤1.1终端设备解析MIB消息和SIB消息，MIB消息中“小区状态”指示为：“非禁止”(not barred)；且SIB消息中的“小区状态”指示为：“非为运营商预留”(“not reserved”for operator use)、且“其他用途使用非真”(“not true”for other use)，表明当前小区可视为候选小区。
步骤1.2小区的MIB消息中指示该小区支持的所有slice信息，且终端设备支持同时读取多个小区的MIB消息，执行时分以下a)，b)两个步骤。
a)此时，终端设备先读取不同小区的MIB消息，MIB消息中的slice信息有如下2种承载形式(bits或者bitmap)：
表1 MIB消息中的slice信息，bit形式
Figure PCTCN2021085160-appb-000001
该实施例可以采用bit的形式承载slice信息，如表1所示。假设用4bits来代表slice的ID，那么slice1可以表示为0001，slice2可以表示为0010，以此类推，等等。
表1中显示的是，来自于小区1的MIB消息指示小区1支持的slice包括：Slice 1、Slice 2、Slice 3和Slice 4；来自于小区2的MIB消息指示小区2支持的slice包括：Slice 2、Slice 4、Slice 5和Slice 8。
表2 MIB消息中的slice信息，bitmap形式
Figure PCTCN2021085160-appb-000002
可选地，该实施例还可以采用bitmap的形式承载slice信息，如表2所示。假设小区1和小区2支持的slice的总数均为8个，其中，来自于小区1的MIB消息中的bitmap为0010 0110。其中“1”表示该slice是可用的，“0”为不可用，也即小区1中可用的slice包括：Slice 3、Slice 6和Slice 7。来自于小区2的MIB消息中的bitmap为1100 0010。其中“1”表示该slice是可用的，“0”为不可用，也即小区2中可用的slice包括：Slice 1、Slice 2和Slice 7。
b)该实施例假设MIB消息中的slice信息采用bitmap的形式进行承载，同时假设终端设备支持的slice为slice1和slice2，则终端设备选择小区2进 行接入，继续读取该小区2的SIB消息。
步骤2、终端设备继续读取该小区2的SIB消息。
终端设备读取到的自身支持的PLMN的可用slice信息如下：
a)slice信息(一个或多个)，且每个slice对应一个或多个frequency信息。
i.SIB消息中采用bit的形式承载slice信息，如表3所示。
假设用4bits来代表slice的ID，那么slice1可以表示为0001，slice2为0010，以此类推。
ii.可选地，可以对slice信息分配不同的优先级(如表3中的第二列所示)。
表3 frequency与slice之间一对多的关系，bit形式
Figure PCTCN2021085160-appb-000003
b)frequency信息(一个或多个)，且每个frequency对应一个或多个slice信息。
i.SIB消息中采用bit的形式承载slice信息，如表4所示。假设用4bits来代表slice的ID，那么slice1可以表示为0001，slice2为0010，以此类推。
可选地，可以对slice信息分配不同的优先级(如表4中的第二列所示)。
表4 frequency与slice之间一对多的关系，bit形式
Figure PCTCN2021085160-appb-000004
Figure PCTCN2021085160-appb-000005
ii.SIB消息中采用bitmap的形式承载slice信息，如表5所示。假设小区共支持的slice为8个，bitmap为0010 0110。其中“1”表示该slice是可用的，“0”为不可用。即对于frequency1来说，slice3、slice6和slice7可用。
可选地，可以对slice信息分配不同的优先级(如表5中的第三列所示)。
表5 frequency与slice之间一对多的关系，bitmap形式
Figure PCTCN2021085160-appb-000006
步骤3、终端设备根据自己可支持的slice和frequency类型，以及当前小区可用的slice和优先级(如果有的话)，选择一个slice进行接入。
如果slice设置有优先级，则终端设备可以从自身支持、且小区可用的slice 中选择优先级最高的slice进行接入。
实施例二
实施例二介绍的是基于slice的小区重选过程，该实施例中，终端设备接收到专属信号(dedicated signalling)，该实施例二包括如下步骤。
步骤1、终端设备在进行小区重选时，接收到RRCrelease消息，该RRCrelease消息中携带该终端设备的专属slice信息。
可选地，该专属切片信息包含以下a)至c)中的至少一种。
a)“重选小区”的信息，如重选小区ID。
b)“重选小区”内能够驻留的slice信息(一个或多个)，且每个slice对应一个或多个frequency信息。可选地，该slice信息可以采用bit/bitmap的形式进行承载，具体如实施例一所示，为避免重复，在此不再重复描述。
c)“重选小区”内能够驻留的frequency信息(一个或多个)，且每个frequency对应一个或多个slice信息。可选地，该slice信息可以采用bit/bitmap的形式进行承载，具体如实施例一所示，为避免重复，在此不再重复描述。
步骤2、终端设备根据自己可支持的slice和frequency类型，以及当前小区可提供的slice和优先级(如果有的话)，选择一个专属slice进行接入。
如果slice设置有优先级，则终端设备可以从自身支持、且小区可用的slice中选择优先级最高的slice进行接入。其中，优先级别的设置形式可以参见实施例一。
以上结合图1详细描述了根据本发明实施例的小区选择或重选的方法。下面将结合图2详细描述根据本发明另一实施例的小区选择或重选的方法。可以理解的是，从网络设备侧描述的网络设备与终端设备的交互与图1所示的方法中的终端设备侧的描述相同，为避免重复，适当省略相关描述。
图2是本发明实施例的小区选择或重选的方法实现流程示意图，可以应用在网络设备侧。如图2所示，该方法200包括如下步骤。
S202：发送系统消息，该系统消息包括MIB消息和SIB消息，该SIB消 息包括小区的slice信息。
其中，上述小区的slice信息用于终端设备根据自身支持的slice信息以及所述小区的slice信息，从小区的slice中选择一个slice接入。
上述MIB消息用于终端设备确定该小区是能否能够称为候选接入小区。
在本发明实施例中，小区的SIB消息中包括有该小区的slice信息，终端设备在根据MIB消息确定该小区能够成为候选接入小区的情况下，即可读取SIB消息，根据终端设备支持的slice信息以及小区的slice信息，从小区的slice中选择一个slice接入。本发明实施例中，终端设备可以直接选择自身支持且小区可用的slice进行接入，可以有效和快速地接入小区。
可选地，作为一个实施例，所述MIB消息中，所述小区的小区状态指示为非禁止；和/或所述MIB消息包括有所述终端设备支持的slice的标识。
可选地，作为一个实施例，所述小区的SIB消息包括如下至少之一：所述小区的一个或多个slice信息，其中，一个slice信息对应一个或多个频率信息；所述小区的一个或多个频率信息，其中，一个频率信息对应一个或多个slice信息。
可选地，作为一个实施例，所述小区的slice信息还设置有优先级。
可选地，作为一个实施例，所述小区的slice信息用于终端设备根据自身支持的slice信息、所述小区的slice信息，以及所述小区的slice信息对应的优先级，从所述小区的slice中选择一个slice接入。
可选地，作为一个实施例，所述方法还包括：发送RRC释放消息；其中，所述RRC释放消息中携带所述终端设备的专属slice信息，所述专属slice信息用于所述终端设备进行小区slice的重选。
可选地，作为一个实施例，所述专属slice信息包括如下至少之一：重选小区的信息；重选小区内能够驻留的一个或多个slice信息，其中，一个slice信息对应一个或多个频率信息；重选小区内能够驻留的一个或多个频率信息，其中，一个频率信息对应一个或多个slice信息。
可选地，作为一个实施例，所述小区的slice信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图的形式进行承载；所述重选小区的slice信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图的形式进行承载。
可选地，作为一个实施例，所述频率信息包括如下至少之一：同一无线接入技术的频率信息；跨无线接入技术的频率信息。
以上结合图1至图2详细描述了根据本发明实施例的小区选择或重选的方法。下面将结合图3详细描述根据本发明实施例的终端设备。
图3是根据本发明实施例的终端设备的结构示意图。如图3所示，终端设备300包括如下模块。
接收模块302，可以用于接收来自小区的MIB消息。
读取模块304，可以用于在根据MIB消息确定所述小区能够成为候选接入小区的情况下，读取所述小区的SIB消息，所述SIB消息包括所述小区的slice信息。
接入模块306，可以用于根据所述终端设备支持的slice信息以及所述小区的slice信息，从所述小区的slice中选择一个slice接入。
在本发明实施例中，小区的SIB消息中包括有该小区的slice信息，终端设备在根据MIB消息确定该小区能够成为候选接入小区的情况下，即可读取SIB消息，根据终端设备支持的slice信息以及小区的slice信息，从小区的slice中选择一个slice接入。本发明实施例中，终端设备可以直接选择自身支持且小区可用的slice进行接入，可以有效和快速地接入小区。
可选地，作为一个实施例，读取模块304，可以用于：在满足如下至少之一的情况下，确定所述小区能够成为候选接入小区：根据所述MIB消息确定出所述小区的小区状态指示为非禁止；所述MIB消息包括有所述终端设备支持的slice的标识。
可选地，作为一个实施例，所述小区的SIB消息包括如下至少之一：所 述小区的一个或多个slice信息，其中，一个slice信息对应一个或多个频率信息；所述小区的一个或多个频率信息，其中，一个频率信息对应一个或多个slice信息。
可选地，作为一个实施例，所述小区的slice信息还设置有优先级。
可选地，作为一个实施例，所述接入模块306，可以用于：根据所述终端设备支持的slice信息、所述小区的slice信息以及所述小区的slice信息对应的优先级，从所述小区的slice中选择一个slice接入。
可选地，作为一个实施例，接收模块302，可以用于接收无线资源控制RRC释放消息；接入模块306，可以用于如果所述RRC释放消息中携带所述终端设备的专属slice信息，则根据所述专属slice信息进行小区slice的重选。
可选地，作为一个实施例，所述专属slice信息包括如下至少之一：重选小区的信息；重选小区内能够驻留的一个或多个slice信息，其中，一个slice信息对应一个或多个频率信息；重选小区内能够驻留的一个或多个频率信息，其中，一个频率信息对应一个或多个slice信息。
可选地，作为一个实施例，所述小区的slice信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图的形式进行承载；所述重选小区的slice信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图的形式进行承载。
可选地，作为一个实施例，所述频率信息包括如下至少之一：同一无线接入技术的频率信息；跨无线接入技术的频率信息。
根据本发明实施例的终端设备300可以参照对应本发明实施例的方法100的流程，并且，该终端设备300中的各个单元/模块和上述其他操作和/或功能分别为了实现方法100中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
图4是根据本发明实施例的网络设备的结构示意图。如图4所述，网络设备400包括如下模块。
发送模块402，可以用于发送系统消息，所述系统消息包括MIB消息和SIB消息，所述SIB消息包括小区的slice信息；所述slice信息用于终端设备根据自身支持的slice信息以及所述小区的slice信息，从所述小区的slice中选择一个slice接入。
在本发明实施例中，小区的SIB消息中包括有该小区的slice信息，终端设备在根据MIB消息确定该小区能够成为候选接入小区的情况下，即可读取SIB消息，根据终端设备支持的slice信息以及小区的slice信息，从小区的slice中选择一个slice接入。本发明实施例中，终端设备可以直接选择自身支持且小区可用的slice进行接入，可以有效和快速地接入小区。
可选地，作为一个实施例，所述MIB消息中，所述小区的小区状态指示为非禁止；和/或所述MIB消息包括有所述终端设备支持的slice的标识。
可选地，作为一个实施例，所述小区的SIB消息包括如下至少之一：所述小区的一个或多个slice信息，其中，一个slice信息对应一个或多个频率信息；所述小区的一个或多个频率信息，其中，一个频率信息对应一个或多个slice信息。
可选地，作为一个实施例，所述小区的slice信息还设置有优先级。
可选地，作为一个实施例，所述小区的slice信息用于终端设备根据自身支持的slice信息、所述小区的slice信息，以及所述小区的slice信息对应的优先级，从所述小区的slice中选择一个slice接入。
可选地，作为一个实施例，发送模块402，可以用于：发送RRC释放消息；其中，所述RRC释放消息中携带所述终端设备的专属slice信息，所述专属slice信息用于所述终端设备进行小区slice的重选。
可选地，作为一个实施例，所述专属slice信息包括如下至少之一：重选小区的信息；重选小区内能够驻留的一个或多个slice信息，其中，一个slice信息对应一个或多个频率信息；
重选小区内能够驻留的一个或多个频率信息，其中，一个频率信息对应 一个或多个slice信息。
可选地，作为一个实施例，所述小区的slice信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图的形式进行承载；所述重选小区的slice信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图的形式进行承载。
可选地，作为一个实施例，所述频率信息包括如下至少之一：同一无线接入技术的频率信息；跨无线接入技术的频率信息。
根据本发明实施例的网络设备400可以参照对应本发明实施例的方法200的流程，并且，该网络设备400中的各个单元/模块和上述其他操作和/或功能分别为了实现方法200中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
本说明书中的各个实施例采用递进的方式描述，每个实施例重点说明的通常是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。对于设备实施例而言，由于其与方法实施例基本相似，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
图5是本发明另一个实施例的终端设备的框图。图5所示的终端设备500包括：至少一个处理器501、存储器502、至少一个网络接口504和用户接口503。终端设备500中的各个组件通过总线系统505耦合在一起。可理解，总线系统505用于实现这些组件之间的连接通信。总线系统505除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图5中将各种总线都标为总线系统505。
其中，用户接口503可以包括显示器、键盘、点击设备(例如，鼠标，轨迹球(trackball))、触感板或者触摸屏等。
可以理解，本发明实施例中的存储器502可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器 可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本发明实施例描述的系统和方法的存储器502旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器502存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统5021和应用程序5022。
其中，操作系统5021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序5022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本发明实施例方法的程序可以包含在应用程序5022中。
在本发明实施例中，终端设备500还包括：存储在存储器上502并可在处理器501上运行的计算机程序，计算机程序被处理器501执行时实现如下 方法实施例100的步骤。
上述本发明实施例揭示的方法可以应用于处理器501中，或者由处理器501实现。处理器501可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器501中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器501可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器502，处理器501读取存储器502中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器501执行时实现如上述方法实施例100的各步骤。
可以理解的是，本发明实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控 制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本发明实施例所述功能的模块(例如过程、函数等)来实现本发明实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
终端设备500能够实现前述实施例中终端设备实现的各个过程，并且能够达到相同或等同的技术效果，为避免重复，这里不再赘述。
请参阅图6，图6是本发明实施例应用的网络设备的结构图，能够实现方法实施例200的细节，并达到相同的效果。如图6所示，网络设备600包括：处理器601、收发机602、存储器603和总线接口，其中：
在本发明实施例中，网络设备600还包括：存储在存储器上603并可在处理器601上运行的计算机程序，计算机程序被处理器601、执行时实现方法实施例200的步骤。
在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器601代表的一个或多个处理器和存储器603代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机602可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。
处理器601负责管理总线架构和通常的处理，存储器603可以存储处理器601在执行操作时所使用的数据。
本发明实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述方法实施例100 和方法实施例200中任意一个方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本发明各个实施例所述的方法。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本发明的保护之内。

Claims (23)

  1. 一种小区选择或重选的方法，所述方法由终端设备执行，所述方法包括：
    接收来自小区的主信息块MIB消息；
    在根据所述MIB消息确定所述小区能够成为候选接入小区的情况下，读取所述小区的系统信息块SIB消息，所述SIB消息包括所述小区的切片信息；
    根据所述终端设备支持的切片信息以及所述小区的切片信息，从所述小区的切片中选择一个切片接入。
  2. 根据权利要求1所述的方法，其中，所述根据所述MIB消息确定所述小区能够成为候选接入小区，包括：在满足如下至少之一的情况下，确定所述小区能够成为候选接入小区：
    根据所述MIB消息确定出所述小区的小区状态指示为非禁止；
    所述MIB消息包括有所述终端设备支持的切片的标识。
  3. 根据权利要求1所述的方法，其中，所述小区的SIB消息包括如下至少之一：
    所述小区的一个或多个切片信息，其中，一个切片信息对应一个或多个频率信息；
    所述小区的一个或多个频率信息，其中，一个频率信息对应一个或多个切片信息。
  4. 根据权利要求1所述的方法，其中，所述小区的切片信息还设置有优先级。
  5. 根据权利要求4所述的方法，其中，所述根据所述终端设备支持的切片信息以及所述小区的切片信息，从所述小区的切片中选择一个切片接入，包括：
    根据所述终端设备支持的切片信息、所述小区的切片信息以及所述小区的切片信息对应的优先级，从所述小区的切片中选择一个切片接入。
  6. 根据权利要求1所述的方法，其中，所述方法还包括：
    接收无线资源控制RRC释放消息；
    如果所述RRC释放消息中携带所述终端设备的专属切片信息，则根据所述专属切片信息进行小区切片的重选。
  7. 根据权利要求6所述的方法，其中，所述专属切片信息包括如下至少之一：
    重选小区的信息；
    重选小区内能够驻留的一个或多个切片信息，其中，一个切片信息对应一个或多个频率信息；
    重选小区内能够驻留的一个或多个频率信息，其中，一个频率信息对应一个或多个切片信息。
  8. 根据权利要求3或7所述的方法，其中，
    所述小区的切片信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图的形式进行承载；
    所述重选小区的切片信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图的形式进行承载。
  9. 根据权利要求3或7所述的方法，其中，所述频率信息包括如下至少之一：
    同一无线接入技术的频率信息；
    跨无线接入技术的频率信息。
  10. 一种小区选择或重选的方法，所述方法由网络设备执行，所述方法包括：
    发送系统消息，所述系统消息包括MIB消息和SIB消息，所述SIB消息包括小区的切片信息；所述小区的切片信息用于终端设备根据自身支持的切片信息以及所述小区的切片信息，从所述小区的切片中选择一个切片接入。
  11. 根据权利要求10所述的方法，其中，
    所述MIB消息中，所述小区的小区状态指示为非禁止；和/或
    所述MIB消息包括有所述终端设备支持的切片的标识。
  12. 根据权利要求10所述的方法，其中，所述小区的SIB消息包括如下至少之一：
    所述小区的一个或多个切片信息，其中，一个切片信息对应一个或多个频率信息；
    所述小区的一个或多个频率信息，其中，一个频率信息对应一个或多个切片信息。
  13. 根据权利要求10所述的方法，其中，所述小区的切片信息还设置有优先级。
  14. 根据权利要求13所述的方法，其中，所述小区的切片信息用于终端设备根据自身支持的切片信息、所述小区的切片信息，以及所述小区的切片信息对应的优先级，从所述小区的切片中选择一个切片接入。
  15. 根据权利要求10所述的方法，其中，所述方法还包括：
    发送RRC释放消息；
    其中，所述RRC释放消息中携带所述终端设备的专属切片信息，所述专属切片信息用于所述终端设备进行小区切片的重选。
  16. 根据权利要求15所述的方法，其中，所述专属切片信息包括如下至少之一：
    重选小区的信息；
    重选小区内能够驻留的一个或多个切片信息，其中，一个切片信息对应一个或多个频率信息；
    重选小区内能够驻留的一个或多个频率信息，其中，一个频率信息对应一个或多个切片信息。
  17. 根据权利要求12或16所述的方法，其中，
    所述小区的切片信息的承载形式包括以下至少之一：基于比特的形式进 行承载；基于位图的形式进行承载；
    所述重选小区的切片信息的承载形式包括以下至少之一：基于比特的形式进行承载；基于位图的形式进行承载。
  18. 根据权利要求12或16所述的方法，其中，所述频率信息包括如下至少之一：
    同一无线接入技术的频率信息；
    跨无线接入技术的频率信息。
  19. 一种终端设备，包括：
    接收模块，用于接收来自小区的MIB消息；
    读取模块，用于在根据所述MIB消息确定所述小区能够成为候选接入小区的情况下，读取所述小区的SIB消息，所述SIB消息包括所述小区的切片信息；
    接入模块，用于根据所述终端设备支持的切片信息以及所述小区的切片信息，从所述小区的切片中选择一个切片接入。
  20. 一种网络设备，包括：
    发送模块，用于发送系统消息，所述系统消息包括MIB消息和SIB消息，所述SIB消息包括小区的切片信息；所述切片信息用于终端设备根据自身支持的切片信息以及所述小区的切片信息，从所述小区的切片中选择一个切片接入。
  21. 一种终端设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至9中任一项所述的小区选择或重选的方法。
  22. 一种网络设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求10至18中任一项所述的小区选择或重选的方法。
  23. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算 机程序，所述计算机程序被处理器执行时实现如权利要求1至18中任一项所述的小区选择或重选的方法。
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