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WO2021077267A1 - 小区重选方法及装置、通信设备 - Google Patents

小区重选方法及装置、通信设备 Download PDF

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Publication number
WO2021077267A1
WO2021077267A1 PCT/CN2019/112373 CN2019112373W WO2021077267A1 WO 2021077267 A1 WO2021077267 A1 WO 2021077267A1 CN 2019112373 W CN2019112373 W CN 2019112373W WO 2021077267 A1 WO2021077267 A1 WO 2021077267A1
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WIPO (PCT)
Prior art keywords
network slice
cell
terminal
supported
cell reselection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/112373
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English (en)
French (fr)
Inventor
洪伟
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to US17/770,040 priority Critical patent/US12323864B2/en
Priority to CN201980002529.8A priority patent/CN111149387B/zh
Priority to PCT/CN2019/112373 priority patent/WO2021077267A1/zh
Priority to CN202210623384.7A priority patent/CN115087059B/zh
Publication of WO2021077267A1 publication Critical patent/WO2021077267A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of wireless communication technology but are not limited to the field of wireless communication technology, and in particular, to a cell reselection method and device, and communication equipment.
  • 5G fifth generation mobile communication
  • 5G will meet people's needs for ultra-high traffic density, ultra-high connection density, and ultra-high mobility, and can provide users with the ultimate service experience of high-definition video, virtual reality, augmented reality, cloud desktop, and online games.
  • 5G will penetrate into the Internet of Things and other fields, and will be deeply integrated with industrial facilities, medical equipment, and transportation, effectively meeting the needs of information services in vertical industries such as industry, medical treatment, and transportation.
  • the future 5G network can support the business types, terminal type, service type and the fifth-generation mobile communications (4 th Generation, 4G) network will be compared to age more diverse, more abundant.
  • 5G has introduced Enhanced Mobile Broadband (eMBB), Massive Internet of Thing (IoT), and Mission-critical IoT (Mission-critical IoT).
  • eMBB Enhanced Mobile Broadband
  • IoT Massive Internet of Thing
  • Mission-critical IoT Mission-critical IoT
  • different services have different requirements for 5G network technical indicators, such as mobility requirements, billing requirements, security requirements, delay requirements, and reliability requirements.
  • Network slicing refers to the slicing of network resources.
  • a single physical network can be divided into multiple logical virtual networks to allocate independent network slices for typical business scenarios.
  • Multiple network slices share network infrastructure, thereby improving network resource utilization and providing optimization for different services used by different user groups Resource support.
  • the base station and user equipment (User Equipment, UE), or terminal, supported network slices may be the same or different.
  • the cell or wireless network that the terminal accesses does not support the network slicing that the terminal needs to access, so that the technical application of network slicing is limited, and the terminal cannot get it.
  • the embodiments of the present application provide a cell reselection method and device, and communication equipment.
  • the first aspect of the embodiments of the present application provides a cell reselection method, which is applied to a terminal, and includes:
  • the system message includes network slice information of a network slice supported by a neighboring cell;
  • the second aspect of the embodiments of the present application provides a cell reselection method, which is applied in a base station, and includes:
  • the system message includes network slice information of a network slice supported by a neighboring cell, and the network slice information is used for the terminal to perform cell reselection.
  • the third aspect of the embodiments of the present application provides a cell reselection device, which is applied to a terminal, and includes:
  • a receiving module configured to receive system messages; wherein, the system messages include network slice information of network slices supported by neighboring cells;
  • the reselection module is configured to perform cell reselection according to the network slice information.
  • a fourth aspect of the embodiments of the present application provides a cell reselection device, which is applied to a base station, and includes:
  • the sending module is configured to send a system message, where the system message includes network slice information of a network slice supported by a neighboring cell, and the network slice information is used for the terminal to perform cell reselection.
  • a fifth aspect of the embodiments of the present application provides a communication device, which includes:
  • the processor is respectively connected to the transceiver and the memory, and is configured to control the transceiver's wireless signal transmission and reception by executing computer-executable instructions stored on the memory, and implement the aforementioned first aspect and/or second aspect The cell reselection method provided by the aspect.
  • the sixth aspect of the embodiments of the present application also provides a computer-readable storage medium having computer-executable instructions stored thereon; after the computer-executable instructions are executed by a processor, the aforementioned first aspect can be implemented And/or the cell reselection method provided by the second aspect.
  • the terminal can receive the network slice information of the network slice supported by the neighboring cell in the system message.
  • the terminal when the terminal performs cell reselection according to the network slice information, it can preferentially select the same type of The adjacent cell access of the network slice, in this way, reduces the phenomenon that the terminal cannot obtain the communication service provided by the network slice due to the terminal accessing to the cell that does not support the network slice that it wants to access or can access.
  • the technical solutions provided by the embodiments of the present application improve the success rate of the terminal using network slicing to obtain communication services, and improve the service quality of the terminal using the wireless communication network to obtain communication services.
  • FIG. 1 is a schematic structural diagram of a wireless communication system provided by an embodiment of this application.
  • FIG. 2 is a schematic flowchart of a cell reselection method provided by an embodiment of this application;
  • FIG. 3 is a schematic flowchart of another cell reselection method provided by an embodiment of this application.
  • FIG. 4 is a schematic flowchart of another cell reselection method provided by an embodiment of this application.
  • FIG. 5 is a schematic structural diagram of a cell reselection device provided by an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of another cell reselection device provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of a terminal provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a base station provided by an embodiment of the application.
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present application.
  • the wireless communication system is a communication system based on cellular mobile communication technology.
  • the wireless communication system may include several terminals 11 and several base stations 12.
  • the terminal 11 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 11 can communicate with one or more core networks via a radio access network (Radio Access Network, RAN).
  • the terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or “cellular” phone), and
  • the computer of the Internet of Things terminal for example, may be a fixed, portable, pocket-sized, handheld, built-in computer or vehicle-mounted device.
  • station For example, station (Station, STA), subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote station (remote station), access point, remote terminal ( remote terminal), access terminal (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user terminal (user equipment, UE).
  • the terminal 11 may also be a device of an unmanned aerial vehicle.
  • the terminal 11 may also be a vehicle-mounted device, for example, it may be a trip computer with a wireless communication function, or a wireless communication device connected to the trip computer.
  • the terminal 11 may also be a roadside device, for example, it may be a street lamp, signal lamp, or other roadside device with a wireless communication function.
  • the base station 12 may be a network side device in a wireless communication system.
  • the wireless communication system may be the 4th generation mobile communication (4G) system, also known as the Long Term Evolution (LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may also be the next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network).
  • the base station 12 may be an evolved base station (eNB) used in a 4G system.
  • the base station 12 may also be a base station (gNB) adopting a centralized and distributed architecture in the 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 12 adopts a centralized and distributed architecture it usually includes a centralized unit (CU) and at least two distributed units (DU).
  • the centralized unit is provided with a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, and a media access control (Media Access Control, MAC) layer protocol stack; distribution
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • the unit is provided with a physical (Physical, PHY) layer protocol stack, and the embodiment of the present application does not limit the specific implementation manner of the base station 12.
  • a wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as The wireless air interface is a new air interface; or, the wireless air interface may also be a wireless air interface based on a 5G-based next-generation mobile communication network technology standard.
  • an E2E (End to End) connection can also be established between the terminals 11.
  • V2V vehicle to vehicle
  • V2I vehicle to Infrastructure
  • V2P vehicle to pedestrian
  • the above-mentioned wireless communication system may further include a network management device 13.
  • the network management device 13 may be a core network device in a wireless communication system.
  • the network management device 13 may be a mobility management entity (Mobility Management Entity) in an Evolved Packet Core (EPC) network. MME).
  • the network management device may also be other core network devices, such as Serving GateWay (SGW), Public Data Network GateWay (PGW), Policy and Charging Rules function unit (Policy and Charging Rules). Function, PCRF) or Home Subscriber Server (HSS), etc.
  • SGW Serving GateWay
  • PGW Public Data Network GateWay
  • Policy and Charging Rules function unit Policy and Charging Rules
  • Function PCRF
  • HSS Home Subscriber Server
  • this embodiment provides a cell reselection method, which is applied to a terminal, and includes:
  • S210 Receive a system message; where the system message includes network slice information of network slices supported by neighboring cells;
  • S220 Perform cell reselection according to the network slice information.
  • the terminal Before the terminal switches from the idle state or the inactive state to the connected state, it needs to reselect the cell for cell camping.
  • the terminal accesses the system message during the re-access process of the cell.
  • the system message may be a broadcasted basic system message (Master Information Block, MIB), or may be a system message sent as needed.
  • MIB Master Information Block
  • the system message carries the network slice information of the network slice supported by the neighboring cell (referred to as the neighboring cell) of the current cell.
  • the network slice information may include at least: type information of the network slice supported by the neighboring cell.
  • the network slice information may also include other information besides the type information, for example, identification information of the network slice.
  • the network slice information may include but is not limited to at least one of the following:
  • the type information of the network slice is used to indicate the type of the network slice
  • the identification information of the network slice is used to identify the network slice, and the terminal can know the type and/or attribute of the network slice according to the identification information, and the attribute includes the supported service and/or the network segment where the network slice is located.
  • some network slices are located in the wireless network, and some network slices span the wireless network and the core network, which is an end-to-end network slice of the entire network.
  • the terminal when the terminal receives the system message, it can read the network slice information of the network slice supported by the neighboring cell from the system message. In this way, the terminal can read the network slice information according to the network slice information during cell handover or reselection. Select a cell, and connect to the selected cell to realize cell renewal.
  • the terminal when the terminal is performing cell reselection, since the current location corresponds to the network slice information of the neighboring cells of the cell, it can select the network slice that the terminal currently wants to access or support according to the network slice information.
  • the neighboring cell of the network slice that the terminal may access is used as the target cell for the terminal to access.
  • the technical solution of the embodiments of the present application reduces the number of terminals that do not know the network slice information of the network slices supported by neighboring cells when they perform cell reselection, and then choose not to support the terminal wants to access or the terminal can access.
  • the neighboring cell of the network slice is accessed as the target cell; and it further reduces the high communication quality (Quality of Service, QoS) provided by the network slice provided by the network slice that the terminal cannot obtain in the accessed cell caused by this cell reselection phenomenon. / Or low-latency communication services.
  • QoS Quality of Service
  • the S220 may include:
  • the neighboring cell with the highest degree of overlap with the type of network slice supported by the terminal is selected for cell reselection.
  • Different types of network slices are defined in different communication protocols. Therefore, the types of network slices that a terminal or a base station may support are the same or different.
  • the cell accessed by the terminal can support the terminal's demand for using network slicing.
  • the neighboring cell with the highest degree of overlap with the type of network slice supported by the terminal is selected for cell reselection according to the network slice information carried in the system message.
  • the terminal supports three types of network slicing.
  • cell A and cell B support network slicing
  • the four types of network slicing supported by cell A include three types of network slicing supported by the terminal.
  • Type of network slice The two types of network slices supported by cell B are the same as one of the three types of network slices supported by the terminal.
  • the network slice type supported by cell A has the highest degree of overlap with the network slice type supported by the terminal. In this way, according to the technical solution provided by the embodiment of the present application, the terminal will select cell A as the target cell to complete the cell reselection.
  • the terminal can optionally obtain a network based on the type of network slicing it supports.
  • the communication service provided by the slice is not limited to
  • the S120 may include: according to the network slice information, selecting the same number of neighboring cells as the network slice type supported by the terminal for cell reselection.
  • the type coincidence degree includes: the same number of the types of network slices supported by the neighboring cell and the types of network slices supported by the terminal is characterized.
  • the type coincidence degree may further include: a coincidence degree value.
  • the coincidence degree value may be calculated according to the product of the network slice type supported by the neighboring cell and the terminal and the access weight. For example, both neighboring cells and terminals support type 1 and type 2 of network slicing.
  • the access weight may be predetermined, and the specific determination reference factors may include: terminal
  • the probability value of the terminal accessing the corresponding type of network slice in the multiple network slices supported by itself is related to the load ratio of the neighboring cell to the current type of network slice.
  • the access weight may be positively correlated with: the probability of the terminal accessing the corresponding type of network slice in the multiple network slices supported by itself; and/or, the neighboring cell’s contribution to the current type of network slice
  • the load factor is negatively correlated.
  • the probability value of the terminal accessing the type 1 network slice in the historical access process is higher, when calculating the type coincidence value, the first type weight value corresponding to the type 1 network slice is higher .
  • the type 1 network is used when calculating the type coincidence value.
  • the second type of weight corresponding to the slice is lower.
  • the terminal calculates the coincidence value with all neighboring cells, and then selects the cell with the highest coincidence value as the target cell to complete cell reselection.
  • the access weight can also be determined according to the QoS currently provided by the network slice, and is not limited to the aforementioned load rate and/or historical access. Probability value.
  • the load rate of the neighboring cell determines to a certain extent whether the terminal can successfully access the corresponding type of network slice; the combination of the two Any calculation of the coincidence degree value can further ensure that the terminal can obtain a higher communication service quality as much as possible while obtaining the communication service provided by the network slice.
  • the access weight may also be related to the priority of the type of network slice supported by the terminal itself, and the higher the priority, the greater the access weight.
  • the terminal supports N types of network slices, and according to user instructions or communication services subscribed by the terminal, priorities are respectively configured for the N types of network slices supported by the terminal. The priority indicates that the terminal has a higher probability of using the network slice type, the best user experience, or the terminal has a paid subscription.
  • S220 may include:
  • the number of network slice types supported by 3 neighboring cells is the same as the number of network slice types supported by the terminal, and the number of network slice types supported by the terminal is the same among the 6 cells. The most numerous.
  • the terminal will select the neighboring cell with the best cell signal quality as the target cell to complete the cell reselection.
  • the number of network slices supported by neighboring cell 1, neighboring cell 2, and neighboring cell 3 is the same as the number of network slices supported by the terminal, and is the 3 cells with the same number of types among the M cells.
  • M is a positive integer greater than or equal to 3.
  • the terminal will select the neighboring cell 2 with the best signal quality as the target cell to complete the cell reselection according to the cell signal quality of the neighboring cell 1, the neighboring cell 2 and the neighboring cell 3.
  • the signal quality of the cell may be characterized by the signal quality of the synchronization signal sent by the corresponding neighboring cell, the signal quality of the demodulation reference signal, or the signal quality of the channel state information reference signal.
  • Signal quality can be embodied by reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), and so on.
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • SINR signal to interference plus noise ratio
  • the signal quality of these neighboring cells is sorted, and the neighboring cell with the best signal quality is prioritized for cell reselection. If the cell reselection in a neighboring cell fails, traverse other neighboring cells with the same number of network slice types supported by the terminal until the cell reselection is successful or all network slices of the same type supported by the terminal are traversed. The neighboring cell with the largest number.
  • the receiving system message includes:
  • SIB3 may be used to indicate intra-frequency cell selection and reselection parameters.
  • the network slice information of the neighboring cell may be directly carried in the SIB3. In this way, the terminal knows the network slice type supported by the neighboring cells of the same frequency when receiving the SIB3.
  • SIB3 can be used to indicate co-frequency cell selection and reselection parameters of neighboring cells. In some embodiments, the SIB3 may also carry a list of prohibited cells.
  • SIB4 can be the cell selection and reselection parameters originally intended to indicate inter-frequency.
  • the cell selection and reselection parameters may include: threshold parameters for cell selection and reselection; the threshold parameters may be used for comparison with the cell signal quality measured by the terminal, so that the terminal performs cell selection or reselection according to the comparison result.
  • the above threshold parameters are only examples, and the cell selection and reselection parameters may include multiple, and are not limited to the above threshold parameters.
  • the network slice information includes at least one of the following:
  • the type information of the network slice supported by the neighboring cell is the type information of the network slice supported by the neighboring cell
  • the slice identification information of the network slice supported by the neighboring cell is the slice identification information of the network slice supported by the neighboring cell.
  • the network slice identification information includes but is not limited to single network slice selection assistance information (Single Network Slice Selection Assistance Information, S-NSSAI).
  • the network slice identification is the most important parameter in the network slicing technology.
  • S-NSSAI Single Network Slice Selection Assistance Information, single network slice selection assistance information uniquely identifies a network slice.
  • An optional information element (Information Element, IE) or a mandatory information element can be added to system message blocks such as SIB3 or SIB4.
  • the optional information unit or mandatory information unit here can be used to carry the network slice information supported by the neighboring cell.
  • the network slicing information is carried in SIB3 or SIB4.
  • SIB3 or SIB4 the network slicing information will be received at the same time. In this way, there is no need to receive separately, which reduces The terminal receives the generated power consumption and tedious operations respectively.
  • this embodiment provides a cell reselection method, which is applied in a base station, and includes:
  • S310 Send a system message, where the system message includes network slice information of a network slice supported by a neighboring cell, and the network slice information is used for the terminal to perform cell reselection.
  • the base station may be various types of base stations, for example, 4G base stations and/or 5G base stations.
  • the base station will send a system message, and the system message will carry network slice information of the network slice supported by the neighboring cell.
  • the network slice information may include at least various information that can indicate the types of network slices supported by neighboring cells, for example, network type information or slice identification information that can indirectly indicate the types of network slices.
  • the network slice information includes: type information of the network slice supported by the neighboring cell.
  • the network slice information includes at least one of the following: type information of the network slice supported by the neighboring cell; and slice identification information of the network slice supported by the neighboring cell.
  • the S310 may include:
  • this embodiment provides a cell reselection device, which is applied to a terminal, and includes:
  • the receiving module 510 is configured to receive system messages; wherein, the system messages include network slice information of network slices supported by neighboring cells;
  • the reselection module 520 is configured to perform cell reselection according to the network slice information.
  • the receiving module 510 and the reselection module 520 may be program modules, and the program modules can be executed by the processor to realize system message reception and cell reselection.
  • the receiving module 510 and the reselection module 520 may be a combination of software and hardware, and the combination of software and hardware may include various programmable arrays; the programmable arrays include, but are not limited to, complex programmable Array or field programmable array.
  • the receiving module 510 and the reselection module 520 may include pure hardware modules, and the pure hardware modules may include various application specific integrated circuits.
  • the reselection module 520 is configured to select, according to the network slice information, the neighboring cell with the highest degree of overlap with the type of network slice supported by the terminal for cell reselection.
  • the reselection module 520 is configured to select, according to the network slice information, the largest number of neighboring cells of the same type as the network slice supported by the terminal for cell reselection.
  • the reselection module 520 is further configured to select the same number of adjacent cells as the type of network slice supported by the terminal when there is more than one neighboring cell with the same number as the type of network slice supported by the terminal. Among the neighboring cells, the neighboring cell with the best cell signal quality performs cell reselection.
  • the receiving module 510 is configured to receive SIB3 and/or SIB4.
  • the network slice information includes at least one of the following:
  • the type information of the network slice supported by the neighboring cell is the type information of the network slice supported by the neighboring cell
  • the slice identification information of the network slice supported by the neighboring cell is the slice identification information of the network slice supported by the neighboring cell.
  • this embodiment provides a cell reselection device, which is applied in a base station, and includes:
  • the sending module 610 is configured to send a system message, where the system message includes network slice information of a network slice supported by a neighboring cell, and the network slice information is used for the terminal to perform cell reselection.
  • the sending module 610 may be a program module. After the program module is executed by the processor, the system message can be sent.
  • the sending module 610 may be a combination of software and hardware, and the combination of software and hardware may include various programmable arrays; the programmable arrays include, but are not limited to, complex programmable arrays or field programmable arrays. Array.
  • the sending module 610 may include a pure hardware module, and the pure hardware module may include various application specific integrated circuits.
  • the cell reselection device may further include a storage module, and the storage module may be configured to store the system message to be sent.
  • the sending module 610 is configured to send SIB3 and/or SIB4.
  • the network slice information includes at least one of the following:
  • the type information of the network slice supported by the neighboring cell is the type information of the network slice supported by the neighboring cell
  • the slice identification information of the network slice supported by the neighboring cell is the slice identification information of the network slice supported by the neighboring cell.
  • This embodiment provides a method for cell reselection.
  • the base station simultaneously broadcasts the network slice type supported by neighboring cells in a system message for cell reselection. For example, in SIB3, an information element about the slice type of the neighboring cell is added.
  • a terminal in an idle or inactive state reads the current cell’s system information about neighboring cells, and learns from it the type of network slice supported by each neighboring cell.
  • the terminal prefers to choose the one supported by itself
  • the cell with the highest degree of network slice type overlap is camped on. If there are multiple cells with the same number of network slices that overlap with the network slice types supported by the cell, the multiple cells are sorted according to the signal quality, and the cell with the best signal quality is preferentially selected for camping.
  • the base station simultaneously broadcasts the network slice type supported by the neighboring cell in the system message used for cell reselection, for example, adding an information unit about the neighboring cell slice type in SIB3.
  • An embodiment of the present application also provides a communication device, including:
  • the processor is respectively connected to the transceiver and the memory, and is configured to control the transceiver's wireless signal transmission and reception by executing computer-executable instructions stored on the memory, and realize the cell reselection provided by any of the foregoing embodiments
  • the method for example, the cell reselection method arbitrarily shown in FIG. 2 to FIG. 4.
  • the communication device may include the aforementioned terminal or base station.
  • the sixth aspect of the embodiments of the present application also provides a computer-readable storage medium on which computer-executable instructions are stored; after the computer-executable instructions are executed by a processor, any of the foregoing embodiments can be implemented
  • the provided cell reselection method for example, the cell reselection method arbitrarily shown in FIG. 2 to FIG. 4.
  • Fig. 7 shows a terminal according to an exemplary embodiment.
  • the terminal may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the device 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, And the communication component 816.
  • a processing component 802 a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, And the communication component 816.
  • the processing component 802 generally controls the overall operations of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components.
  • the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.
  • the memory 804 is configured to store various types of data to support operations in the device 800. Examples of such data include instructions for any application or method operating on the device 800, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable read only memory
  • PROM programmable read only memory
  • ROM read only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power component 806 provides power to various components of the device 800.
  • the power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 800.
  • the multimedia component 808 includes a screen that provides an output interface between the device 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor can not only sense the boundary of the touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 808 includes a front camera and/or a rear camera. When the device 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 810 is configured to output and/or input audio signals.
  • the audio component 810 includes a microphone (MIC), and when the device 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 804 or transmitted via the communication component 816.
  • the audio component 810 further includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 814 includes one or more sensors for providing the device 800 with various aspects of status assessment.
  • the sensor component 814 can detect the on/off status of the device 800 and the relative positioning of components, such as the display and keypad of the device 800.
  • the sensor component 814 can also detect the position change of the device 800 or a component of the device 800. The presence or absence of contact with the device 800, the orientation or acceleration/deceleration of the device 800, and the temperature change of the device 800.
  • the sensor component 814 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 816 is configured to facilitate wired or wireless communication between the device 800 and other devices.
  • the device 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 800 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing equipment (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing equipment
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • non-transitory computer-readable storage medium including instructions, for example, the memory 804 including instructions, and the foregoing instructions may be executed by the processor 820 of the device 800 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and so on.
  • Figure 8 is a schematic diagram of a base station.
  • the device 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932, for storing instructions that can be executed by the processing component 922, such as an application program.
  • the application program stored in the memory 932 may include one or more modules each corresponding to a set of instructions.
  • the processing component 922 is configured to execute instructions to execute the PDCCH monitoring method shown in FIG. 4 and/or FIG. 5.
  • the base station 900 may also include a power supply component 926 configured to perform power management of the device 900, a wired or wireless network interface 950 configured to connect the device 900 to the network, and an input output (I/O) interface 958.
  • the device 900 can operate based on an operating system stored in the memory 932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

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Abstract

本申请实施例公开了一种小区重选方法及装置、通信设备。所述小区重选方法，应用于终端中，包括：接收系统消息；其中，所述系统消息包含邻小区所支持网络切片的网络切片信息；根据所述网络切片信息，进行小区重选。

Description

小区重选方法及装置、通信设备 技术领域
本申请实施例涉及无线通信技术领域但不限于无线通信技术领域，尤其涉及一种小区重选方法及装置、通信设备。
背景技术
移动通信技术和产业将迈入第五代移动通信(5 th Generation，5G)的发展阶段。5G将满足人们超高流量密度、超高连接数密度、超高移动性的需求，能够为用户提供高清视频、虚拟现实、增强现实、云桌面、在线游戏等极致业务体验。
5G将渗透到物联网等领域，与工业设施、医疗仪器、交通工具等深度融合，有效满足工业、医疗、交通等垂直行业的信息化服务需要。由此可见，未来5G网络能够支持的业务种类、终端种类、服务种类与第五代移动通信(4 th Generation，4G)网络时代相比会更加多样、更加丰富。例如，在5G中引入了增强移动宽带(Enhanced Mobile Broadband，eMBB)，大容量物联网(Massive Internet of Thing，IoT)，大量重要(Mission-critical IoT)。并且不同业务对5G网络技术指标的要求也不尽相同，例如，移动性要求、计费要求、安全性要求、时延要求、可靠性要求等。
有鉴于此，在5G技术中提出了网络切片的技术。网络切片是指：网络资源进行切片，单一物理网络可以划分成多个逻辑虚拟网络，为典型的业务场景分配独立的网络切片。在一个网络切片内针对业务需求设计增强的网络架构，实现恰到好处的资源分配和流程优化，多个网络切片共用网络基础设施，从而提高网络资源利用率，为不同用户群使用的不同业务提供最优化的资源支持。
在相关技术中网络切片有多种，然后基站和用户设备(User Equipment，UE)或者称之为终端，所支持的网络切片可相同或不同。而在具体的通信过程中可能出现的现象时，终端接入到的小区或无线网络并不支持终端所需接入的网络切片，从而使得网络切片的技术应用受到局限，而终端也得不到网络切片提供的低延时或者高质量的通信服务。
发明内容
本申请实施例提供一种小区重选方法及装置、通信设备。
本申请实施例第一方面提供一种小区重选方法，应用于终端中，包括：
接收系统消息；其中，所述系统消息包含邻小区所支持网络切片的网络切片信息；
根据所述网络切片信息，进行小区重选。
本申请实施例第二方面提供一种小区重选方法，应用于基站中，包括：
发送系统消息，其中，所述系统消息包含邻小区所支持网络切片的网络切片信息，所述网络切片信息，用于供终端进行小区重选。
本申请实施例第三方面提供一种小区重选装置，应用于终端中，包括：
接收模块，配置为接收系统消息；其中，所述系统消息包含邻小区所支持网络切片的网络切片信息；
重选模块，配置为根据所述网络切片信息，进行小区重选。
本申请实施例第四方面提供一种小区重选装置，应用于基站中，包括：
发送模块，配置为发送系统消息，其中，所述系统消息包含邻小区 所支持网络切片的网络切片信息，所述网络切片信息，用于供终端进行小区重选。
本申请实施例第五方面提供一种通信设备，其中，包括：
收发器；
存储器；
处理器，分别与所述收发器及所述存储器连接，用于通过执行存储在所述存储器上的计算机可执行指令，控制收发器的无线信号收发，并实现前述第一方面和/或第二方面提供的小区重选方法。
本申请实施例第六方面还提供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可执行指令；所述计算机可执行指令被处理器执行后，能够实现前述第一方面和/或第二方面提供的小区重选方法。
在本申请实施例中，终端可以在系统消息中接收到邻小区所支持的网络切片的网络切片信息，如此，终端在根据网络切片信息进行小区重选时，可以优先选择与自身支持相同类型的网络切片的邻小区接入，如此，减少了终端接入到不支持自身想要接入或者能够接入的网络切片的小区，导致的无法获取网络切片提供的通信服务的现象。总之，本申请实施例提供的技术方案，提升了终端利用网络切片获取通信服务的成功率，并提升了终端使用无线通信网络获取通信服务的服务质量。
附图说明
图1为本申请实施例提供的一种无线通信系统的结构示意图；
图2为本申请实施例提供的一种小区重选方法的流程示意图；
图3为本申请实施例提供的另一种小区重选方法的流程示意图；
图4为本申请实施例提供的再一种小区重选方法的流程示意图；
图5为本申请实施例提供的一种小区重选装置的结构示意图；
图6为本申请实施例提供的另一种小区重选装置的结构示意图；
图7为本申请实施例提供的一种终端的结构示意图；
图8为本申请实施例提供的一种基站的结构示意图。
具体实施方式
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
请参考图1，其示出了本申请实施例提供的一种无线通信系统的结构示意图。如图1所示，无线通信系统是基于蜂窝移动通信技术的通信系统，该无线通信系统可以包括：若干个终端11以及若干个基站12。
其中，终端11可以是指向用户提供语音和/或数据连通性的设备。终端11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，终端11可以是物联网终端，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网终端的计算机，例如，可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如，站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程终端(remote terminal)、接入终端(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户终端(user equipment，UE)。或者，终端11也可以是无人飞行器的设备。或者，终端11也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线通信设备。或者，终端11也可以是路边设备，比如，可以是具 有无线通信功能的路灯、信号灯或者其它路边设备等。
基站12可以是无线通信系统中的网络侧设备。其中，该无线通信系统可以是第四代移动通信技术(the 4th generation mobile communication，4G)系统，又称长期演进(Long Term Evolution，LTE)系统；或者，该无线通信系统也可以是5G系统，又称新空口(new radio，NR)系统或5G NR系统。或者，该无线通信系统也可以是5G系统的再下一代系统。其中，5G系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。
其中，基站12可以是4G系统中采用的演进型基站(eNB)。或者，基站12也可以是5G系统中采用集中分布式架构的基站(gNB)。当基站12采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层协议栈，本申请实施例对基站12的具体实现方式不加以限定。
基站12和终端11之间可以通过无线空口建立无线连接。在不同的实施方式中，该无线空口是基于第四代移动通信网络技术(4G)标准的无线空口；或者，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
在一些实施例中，终端11之间还可以建立E2E(End to End，端到端)连接。比如车联网通信(vehicle to everything，V2X)中的V2V(vehicle to vehicle，车对车)通信、V2I(vehicle to Infrastructure，车对路边设备)通信和V2P(vehicle to pedestrian，车对人)通信等场景。
在一些实施例中，上述无线通信系统还可以包含网络管理设备13。
若干个基站12分别与网络管理设备13相连。其中，网络管理设备13可以是无线通信系统中的核心网设备，比如，该网络管理设备13可以是演进的数据分组核心网(Evolved Packet Core，EPC)中的移动性管理实体(Mobility Management Entity，MME)。或者，该网络管理设备也可以是其它的核心网设备，比如服务网关(Serving GateWay，SGW)、公用数据网网关(Public Data Network GateWay，PGW)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)或者归属签约用户服务器(Home Subscriber Server，HSS)等。对于网络管理设备13的实现形态，本申请实施例不做限定。
如图2所示，本实施例提供一种小区重选方法，应用于终端中，包括：
S210：接收系统消息；其中，所述系统消息包含邻小区所支持网络切片的网络切片信息；
S220：根据所述网络切片信息，进行小区重选。
终端从空闲态或非激活态切换到连接态之前，需要重新选择小区进行小区驻留。
在本申请实施例中，终端在小区重新的接入过程中接入系统消息，该系统消息可为广播的基本系统消息(Master Information Block，MIB)，也可以是按照需要发送的系统消息。
在系统消息中，携带有当前小区的相邻小区(简称邻小区)所支持的网络切片的网络切片信息。
在一些实施例中，所述网络切片信息可至少包括：所述邻小区所支持网络切片的类型信息。当然，在还有一些情况下，所述网络切片信息还可包括：所述类型信息以外的其他信息，例如，网络切片的标识信息。
在一些实施例中，所述网络切片信息可包括但不限于以下至少之一：
网络切片的类型信息，用于指示网络切片的类型；
网络切片的标识信息，用于标识网络切片，终端根据该标识信息可以知道网络切片的类型和/或属性，该属性包括所支持的业务和/或网络切片所在的网段。例如，有的网络切片位于无线网、有的网络切片横跨无线网和核心网是一种全网的端到端网络切片。
如此，终端在接收到系统消息的同时，就能够从系统消息中读取出邻小区所支持的网络切片的网络切片信息，如此，在进行小区切换或重选时，终端可以根据该网络切片信息选择小区，并接入到选择的小区，实现小区重新。此时，终端在进行小区重选时，由于有当前所在位置所对应的本小区的邻小区的网络切片信息，故可以根据该网络切片信息，选择支持终端当前想要接入的网络切片或者支持终端可能接入的网络切片的邻小区作为目标小区供终端接入。如此，本申请实施例的技术方案，减少了终端在进行小区重选时，因为不了解邻小区所支持的网络切片的网络切片信息，进而选择了不支持终端想要接入或者终端可以接入的网络切片的邻小区作为目标小区接入的现象；并进一步减少了这种小区重选现象导致的终端无法在接入的小区获取的网络切片提供的高通信质量(Quality of Service，QoS)和/或低时延的通信服务。
在一些实施例中，所述S220可包括：
根据所述网络切片信息，选择与终端所支持网络切片的类型重合度最高的邻小区进行小区重选。
不同通信协议中定义了不同类型的网络切片。故一种终端或者一个基站可能支持的网络切片的类型相同或不同。
为了实现尽可能的在终端需要使用网络切片时，终端所接入的小区就能够支持终端使用网络切片的需求。在本申请实施例中，会根据系统消息携带的网络切片信息，选择与终端所支持网络切片的类型重合度最 高的邻小区进行小区重选。
例如，终端支持3种类型的网络切片，终端当前对应的本小区的邻小区中有小区A和小区B支持网络切片，且小区A支持的4种类型的网络切片中包含终端所支持的3种类型的网络切片。小区B所支持的2种类型网络切片与终端所支持的3种类型的网络切片中的一种相同。此时，小区A支持的网络切片类型与终端所支持的网络切片的类型重合度最高。如此，根据本申请实施例提供的技术方案，终端将选择小区A作为目标小区完成小区重选。如此，若终端接入到小区A之后有使用网络切片的需求时，由于小区A支持所有终端能够使用的网络切片的类型，则终端就可以在其自身所支持的网络切片的类型任选获得网络切片提供的通信服务。
故在一些实施例中，所述S120可包括：根据所述网络切片信息，选择与终端所支持网络切片的类型相同个数最多的邻小区进行小区重选。
在本申请实施例中所述类型重合度包含：邻小区所支持网络切片的类型与终端所支持的网络切片的类型的相同个数来表征。
在另一些实施例中，所述类型重合度还可以包含：重合度值来表示。该重合度值可为根据邻小区与终端均支持的网络切片的类型，及接入权值的乘积计算得到的。例如，邻小区和终端均支持网络切片的类型1和类型2。
所述接入权值可为预先确定的，具体的确定参考因素可包括：终端
终端在其自身所支持的多种网络切片中接入对应类型的网络切片的概率值、邻小区对当前类型的网络切片的负载率等相关。
具体如，所述接入权值可与：终端在其自身所支持的多种网络切片中接入对应类型的网络切片的概率值正相关；和/或，邻小区对当前类型的网络切片的负载率负相关。
即，若终端在历史接入过程中接入到类型1的网络切片的概率值越高，则在计算所述类型重合度值时，类型1的网络切片所对应的第一类权值越高。
若邻小区所支持的网络切片的类型1的占用容量与对应邻小区所支持的最大容量之间的比值(负载率)越高，则以在计算所述类型重合度值时，类型1的网络切片所对应的第二类权值越低。
最终终端与所有邻小区都计算所述重合度值，然后，选择重合度值最高的小区作为目标小区完成小区重选。
当然以上仅对类型重合度最高进行举例说明，在具体实现时，所述接入权值还可以是根据网络切片当前可提供的QoS来确定，不局限于上述负载率和/或历史接入的概率值。
由于终端历史接入的概率值反应了终端最有可能使用的网络切片的类型，而邻小区的负载率一定程度上决定了终端是否能够成功接入到对应类型的网络切片；结合这两者的任意一个计算所述重合度值，都能够进一步确保终端在能够获得网络切片提供的通信服务的同时，尽可能获得更高的通信服务质量。
在一些实施例中，所述接入权值还可以与终端自身设置的其所支持的网络切片的类型的优先级相关，优先级越高则接入权值越大。例如，终端支持N个类型的网络切片，根据用户指示或者终端所订阅的通信服务，分别为终端所支持的N个类型的网络切片配置了优先级。优先级表明终端使用该网络切片类型的概率越高、用户体验最好或者终端有付费订阅等。
在一些实施例中，如图3所述，S220可包括：
S221：当与终端所支持网络切片的类型相同个数最多的邻小区为一个时，选择与终端所支持网络切片的类型相同个数最多的邻小区进行小 区重选。
S222：当与终端所支持网络切片的类型相同个数最多的邻小区不止一个时，选择与终端所支持网络切片的类型相同个数最多的邻小区中小区信号质量最好的邻小区进行小区重选。
例如，终端所对应的本小区的6个邻小区中，有3个邻小区所支持的网络切片的类型与终端所支持的网络切片的类型的个数相同，且是6个小区中类型相同个数最多的。
此时，终端会选择小区信号质量最好的邻小区作为目标小区完成小区重选。
例如，邻小区1、邻小区2及邻小区3所支持的网络切片与终端所支持的网络切片的类型个数相同且是M个小区中类型个数相同最多的3个小区。M为大于或等于3的正整数。此时，终端会根据邻小区1、邻小区2及邻小区3的小区信号质量，分别选择信号质量最好的邻小区2作为目标小区完成小区重选。
该小区信号质量可以由对应邻小区发送的同步信号的信号质量、解调参考信号的信号质量或者信道状态信息参考信号的信号质量来表征。
信号质量越强，则表明终端接入该小区之后能够获得通信质量最好。
信号质量可以由参考信号接收功率(Reference Signal Received Power，RSRP)、参考信号接收质量(Reference Signal Received Quality，RSRQ)、信号噪声干扰比(Signal to Interference plus Noise Ratio，SINR)等来体现。
在一些实施例中，在存在多个邻小区与终端所支持的网络切片的类型相同个数最多时，对这些邻小区的信号质量进行排序，优先信号质量最好的邻小区进行小区重选，若在一个邻小区的小区重选失败，则遍历其他与终端所支持的网络切片的类型相同个数最多的邻小区，直到小区 重选成功或者遍历完所有与终端所支持的网络切片的类型相同个数最多的邻小区。
在一些实施例中，所述接收系统消息，包括：
接收SIB3和/或SIB4。
在一些实施例中，SIB3可为原用于指示同频小区选择和重选参数。在本申请实施例中，可以将邻小区的网络切片信息直接携带在SIB3中，如此，终端在接收到SIB3时就知道同频的邻小区所支持的网络切片类型。
在一些实施例中，SIB3可用于指示邻小区的同频的小区选择和重选参数。在一些实施例中，该SIB3还可携带有禁止接入小区的名单。
SIB4可为原定用于指示异频的小区选择和重选参数。
该小区选择与重选参数可包括：小区选择和重选的门限参数；该门限参数可以用于与终端测量的小区信号质量进行比较，以使终端根据比较的结果进行小区选择或重选。
以上门限参数仅是举例，所述小区选择和重选参数可包括多个，不局限于上述门限参数。
在一些实施例中，所述网络切片信息包括以下至少之一：
所述邻小区所支持的网络切片的类型信息；
所述邻小区所支持的网络切片的切片标识信息。
该网络切片标识信息包括但不限于单一网络切片选择辅助信息(Single Network Slice Selection Assistance Information，S-NSSAI)。
网络切片标识是网络切片技术中最重要的参数。S-NSSAI(Single Network Slice Selection Assistance Information，单一网络切片选择辅助信息)唯一标识一个网络切片。
在SIB3或SIB4等系统消息块可增加一个可选信息单元(Information Element，IE)或者必选信息单元。此处的可选信息单元或必选信息单 元可用于携带邻小区所支持的网络切片信息。
将所述网络切片信息携带在SIB3或SIB4中，如此，终端内在接收到SIB3或SIB4中携带的用于小区重选的参数时，将同时接收到网络切片信息，如此，无需分开接收，减少了终端分别接收所产生的功耗和繁琐操作。
如图4所示，本实施例提供一种小区重选方法，应用于基站中，包括：
S310：发送系统消息，其中，所述系统消息包含邻小区所支持网络切片的网络切片信息，所述网络切片信息，用于供终端进行小区重选。
在本实施例中所述基站可为各种类型的基站，例如，4G基站和/或5G基站等。
该基站会发送系统消息，该系统消息中会携带有邻小区所支持的网络切片的网络切片信息。该网络切片信息至少可包括：能够指示邻小区所支持网络切片的类型的各种信息，例如，网络类型信息或者能够间接指示网络切片的类型的切片标识信息等。
在一些实施例中，所述网络切片信息包括：所述邻小区所支持的网络切片的类型信息。
在另一些实施例中，所述网络切片信息包括以下至少之一：所述邻小区所支持的网络切片的类型信息；所述邻小区所支持的网络切片的切片标识信息。
在一些实施例中，所述S310可包括：
发送系统消息块SIB3和/或SIB4。
如图5所示，本实施例提供一种小区重选装置，应用于终端中，包括：
接收模块510，配置为接收系统消息；其中，所述系统消息包含邻小 区所支持网络切片的网络切片信息；
重选模块520，配置为根据所述网络切片信息，进行小区重选。
在一些实施例中，所述接收模块510及重选模块520可为程序模块，所述程序模块被处理器执行后，能够实现系统消息接收及小区重选。
在另一些实施例中，所述接收模块510及重选模块520可为软硬结合模块，所述软硬结合模块可包括各种可编程阵列；所述可编程阵列包括但不限于复杂可编程阵列或现场可编程阵列。
在还有一些实施例中，所述接收模块510及重选模块520可包括纯硬件模块，所述纯硬件模块可包括各种专用集成电路。
在一些实施例中，所述重选模块520，配置为根据所述网络切片信息，选择与终端所支持网络切片的类型重合度最高的邻小区进行小区重选。
在一些实施例中，所述重选模块520，配置为根据所述网络切片信息，选择与终端所支持网络切片的类型相同个数最多的邻小区进行小区重选。
在一些实施例中，所述重选模块520，还配置为当与终端所支持网络切片的类型相同个数最多的邻小区不止一个时，选择与终端所支持网络切片的类型相同个数最多的邻小区中小区信号质量最好的邻小区进行小区重选。
在一些实施例中，所述接收模块510，配置为接收SIB3和/或SIB4。
在一些实施例中，所述网络切片信息包括以下至少之一：
所述邻小区所支持的网络切片的类型信息；
所述邻小区所支持的网络切片的切片标识信息。
如图6所示，本实施例提供一种小区重选装置，应用于基站中，包括：
发送模块610，配置为发送系统消息，其中，所述系统消息包含邻小 区所支持网络切片的网络切片信息，所述网络切片信息，用于供终端进行小区重选。
在一些实施例中，所述发送模块610可为程序模块，所述程序模块被处理器执行后，能够实现系统消息发送。
在另一些实施例中，所述发送模块610可为软硬结合模块，所述软硬结合模块可包括各种可编程阵列；所述可编程阵列包括但不限于复杂可编程阵列或现场可编程阵列。
在还有一些实施例中，所述发送模块610可包括纯硬件模块，所述纯硬件模块可包括各种专用集成电路。
在一些实施例中，所述小区重选装置还可包括：存储模块，该存储模块可配置为存储待发送的所述系统消息。
在一些实施例中，所述发送模块610，配置为发送SIB3和/或SIB4。
在一些实施例中，所述网络切片信息包括以下至少之一：
所述邻小区所支持的网络切片的类型信息；
所述邻小区所支持的网络切片的切片标识信息。
本实施例提供一种小区重选方法，基站在用于小区重选的系统消息中同时广播邻小区所支持的网络切片类型。例如，在SIB3中添加关于邻小区切片类型的信息单元。处于空闲态或者非激活态的终端读取当前小区关于邻小区的系统消息，并从中得知各个邻小区所支持的网络切片的类型，在进行小区重选时，终端优先选择和自己所支持的网络切片类型重合度最高的小区进行驻留。如果有多个小区具有相同数量的与自己所支持的网络切片类型重合的网络切片，则对这多个小区按照信号质量进行排序，优先选择信号质量最好的小区进行驻留。
总之，基站在用于小区重选的系统消息中同时广播邻小区所支持的网络切片类型，例如在SIB3中添加关于邻小区切片类型的信息单元。
本申请实施例还提供一种通信设备，包括：
收发器；
存储器；
处理器，分别与所述收发器及所述存储器连接，用于通过执行存储在所述存储器上的计算机可执行指令，控制收发器的无线信号收发，并实现前述任意实施例提供的小区重选方法，例如，图2至图4任意所示的小区重选方法。
该通信设备可包括：前述的终端或基站。
本申请实施例第六方面还提供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可执行指令；所述计算机可执行指令被处理器执行后，能够实现前述任意实施例提供的小区重选方法，例如，图2至图4任意所示的小区重选方法。
图7是根据一示例性实施例示出的一种终端，该终端具体可是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图7，装置800可以包括以下一个或多个组件：处理组件802，存储器804，电力组件806，多媒体组件808，音频组件810，输入/输出(I/O)的接口812，传感器组件814，以及通信组件816。
处理组件802通常控制装置800的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件802可以包括一个或多个处理器820来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件802可以包括一个或多个模块，便于处理组件802和其他组件之间的交互。例如，处理组件802可以包括多媒体模块，以方便多媒体组件808和处理组件802之间的交互。
存储器804被配置为存储各种类型的数据以支持在设备800的操作。 这些数据的示例包括用于在装置800上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件806为装置800的各种组件提供电力。电力组件806可以包括电源管理系统，一个或多个电源，及其他与为装置800生成、管理和分配电力相关联的组件。
多媒体组件808包括在装置800和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件808包括一个前置摄像头和/或后置摄像头。当设备800处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件810被配置为输出和/或输入音频信号。例如，音频组件810包括一个麦克风(MIC)，当装置800处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器804或经由通信组件816发送。在一些实施例中，音频组件810还包括一个扬声器，用于输出音频信号。
I/O接口812为处理组件802和外围接口模块之间提供接口，上述外围 接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件814包括一个或多个传感器，用于为装置800提供各个方面的状态评估。例如，传感器组件814可以检测到设备800的打开/关闭状态，组件的相对定位，例如组件为装置800的显示器和小键盘，传感器组件814还可以检测装置800或装置800一个组件的位置改变，用户与装置800接触的存在或不存在，装置800方位或加速/减速和装置800的温度变化。传感器组件814可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件814还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件814还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件816被配置为便于装置800和其他设备之间有线或无线方式的通信。装置800可以接入基于通信标准的无线网络，如Wi-Fi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，通信组件816还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置800可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器804，上述指令可由装置800的处理器820 执行以完成上述方法。例如，非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
图8是一基站的示意图。参照图8，装置900包括处理组件922，其进一步包括一个或多个处理器，以及由存储器932所代表的存储器资源，用于存储可由处理组件922的执行的指令，例如应用程序。存储器932中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件922被配置为执行指令，以执行图4和/或图5所示的PDCCH监听方法。
基站900还可以包括一个电源组件926被配置为执行装置900的电源管理，一个有线或无线网络接口950被配置为将装置900连接到网络，和一个输入输出(I/O)接口958。装置900可以操作基于存储在存储器932的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。

Claims (14)

  1. 一种小区重选方法，其中，应用于终端中，包括：
    接收系统消息；其中，所述系统消息包含邻小区所支持网络切片的网络切片信息；
    根据所述网络切片信息，进行小区重选。
  2. 根据权利要求1所述的方法，其中，所述网络切片信息包含：
    所述邻小区所支持的网络切片的类型信息。
  3. 根据权利要求2所述的方法，其中，所述根据所述网络切片信息，进行小区重选，包括：
    根据所述网络切片信息，选择与终端所支持网络切片的类型重合度最高的邻小区进行小区重选。
  4. 根据权利要求3所述的方法，其中，所述根据所述网络切片信息，选择与终端所支持网络切片的类型重合度最高的邻小区进行小区重选，包括：
    根据所述网络切片信息，选择与终端所支持网络切片的类型相同个数最多的邻小区进行小区重选。
  5. 根据权利要求4所述的方法，其中，所述根据所述网络切片信息，选择与终端所支持网络切片的类型重合度最高的邻小区进行小区重选，还包括：
    当与终端所支持网络切片的类型相同个数最多的邻小区不止一个时，选择与终端所支持网络切片的类型相同个数最多的邻小区中小区信号质量最好的邻小区进行小区重选。
  6. 一种小区重选方法，其中，应用于基站中，包括：
    发送系统消息，其中，所述系统消息包含邻小区所支持网络切片的网络切片信息，所述网络切片信息，用于供终端进行小区重选。
  7. 根据权利要求6所述的方法，其中，所述网络切片信息包括：
    所述邻小区所支持的网络切片的类型信息。
  8. 一种小区重选装置，其中，应用于终端中，包括：
    接收模块，配置为接收系统消息；其中，所述系统消息包含邻小区所支持网络切片的网络切片信息；
    重选模块，配置为根据所述网络切片信息，进行小区重选。
  9. 根据权利要求8所述的装置，其中，所述网络切片信息包含：
    所述邻小区所支持的网络切片的类型信息。
  10. 根据权利要求9所述的装置，其中，所述重选模块，配置为根据所述网络切片信息，选择与终端所支持网络切片的类型重合度最高的邻小区进行小区重选。
  11. 根据权利要求10所述的装置，其中，所述重选模块，配置为根据所述网络切片信息，选择与终端所支持网络切片的类型相同个数最多的邻小区进行小区重选。
  12. 根据权利要求11所述的装置，其中，所述重选模块，还配置为当与终端所支持网络切片的类型相同个数最多的邻小区不止一个时，选择与终端所支持网络切片的类型相同个数最多的邻小区中小区信号质量最好的邻小区进行小区重选。
  13. 一种小区重选装置，其中，应用于基站中，包括：
    发送模块，配置为发送系统消息，其中，所述系统消息包含邻小区所支持网络切片的网络切片信息，所述网络切片信息，用于供终端进行小区重选。
  14. 一种通信设备，其中，包括：
    收发器；
    存储器；
    处理器，分别与所述收发器及所述存储器连接，用于通过执行存储在所述存储器上的计算机可执行指令，控制收发器的无线信号收发，并实现权利要求1至5或6至7任一项提供的小区重选方法。
PCT/CN2019/112373 2019-10-21 2019-10-21 小区重选方法及装置、通信设备 Ceased WO2021077267A1 (zh)

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