WO2021120221A1 - 小区重选方法、装置及系统 - Google Patents

小区重选方法、装置及系统 Download PDF

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Publication number
WO2021120221A1
WO2021120221A1 PCT/CN2019/127193 CN2019127193W WO2021120221A1 WO 2021120221 A1 WO2021120221 A1 WO 2021120221A1 CN 2019127193 W CN2019127193 W CN 2019127193W WO 2021120221 A1 WO2021120221 A1 WO 2021120221A1
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WO
WIPO (PCT)
Prior art keywords
reselection
cell
information
configuration information
perform
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PCT/CN2019/127193
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English (en)
French (fr)
Inventor
耿婷婷
吴烨丹
严乐
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201980102999.1A priority Critical patent/CN114830730A/zh
Priority to EP19956595.3A priority patent/EP4068854A4/en
Priority to PCT/CN2019/127193 priority patent/WO2021120221A1/zh
Publication of WO2021120221A1 publication Critical patent/WO2021120221A1/zh
Priority to US17/807,641 priority patent/US20220322176A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0088—Scheduling hand-off measurements
    • 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
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00838—Resource reservation for handover
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0094—Definition of hand-off measurement parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H04W36/083—Reselecting an access point wherein at least one of the access points is a moving node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • 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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • This application relates to the field of communication technology, and in particular to a method, device and system for cell reselection.
  • non-terrestrial network (NTN) systems are introduced to In the 5th generation (5G) system.
  • the NTN system may include a satellite communication system, a high altitude platform (HAPS) communication system, or other non-terrestrial communication systems.
  • HAPS high altitude platform
  • the NTN system provides seamless coverage for terminal equipment by deploying network equipment or part of the network equipment functions on satellites, mobile drones, or mobile hot air balloons.
  • the NTN system is less affected by natural disasters and can improve the 5G system. reliability.
  • the network equipment in the NTN system forwards the signal of the ground base station connected to it to the ground to form a corresponding cell. Since the network equipment in the NTN system is mobile, the ground base station it is connected to will also change. Depending on the ground base station connected to the network equipment, the signal sent by the network equipment is also different, so there is a jump in the cell signal forwarded by the network equipment. Change the situation, that is, cell hopping occurs.
  • a certain cell is shut down at a certain time or a certain period of time, which causes the signal of the cell to hop, that is, there is also a cell hopping in the TN system.
  • the embodiments of the present application provide a cell reselection method, device, and system, which are used to implement cell reselection in a cell hopping scenario.
  • an embodiment of the present application provides a cell reselection method, including: receiving reselection configuration information from a network device, the reselection configuration information includes reselection trigger information, and the reselection trigger information is used to trigger the measurement to be performed To perform cell reselection, the reselection trigger information includes reselection time information or reselection trigger indication information; according to the reselection configuration information, measurement is performed to perform cell reselection.
  • the reselection configuration information including reselection trigger information is introduced. Based on the reselection configuration information, a method for implementing cell reselection by terminal equipment in a cell hopping scenario is given, which helps to avoid the occurrence of terminal equipment Circumstances that cannot communicate normally.
  • the reselection trigger information includes reselection trigger time information; the performing measurement to perform cell reselection according to the reselection configuration information includes: indicating when the reselection trigger time information indicates When the time arrives, start the measurement for cell reselection.
  • the reselection trigger time information indicates the time to start the measurement for cell reselection.
  • the reselection trigger information includes reselection trigger indication information; the performing measurement to perform cell reselection according to the reselection configuration information includes: after obtaining the reselection trigger indication At the moment of information, start to perform measurement for cell reselection.
  • the reselection trigger indication information indicates the time to start the measurement for cell reselection.
  • the reselection configuration information further includes reselection target information, which can be used in combination with reselection trigger information, and the reselection target information is used to indicate the target cell for reselection measurement. ⁇ ;
  • the performing measurement for cell reselection according to the reselection configuration information includes: determining to perform the measurement according to the reselection trigger information; if the target cell is measured and the target cell satisfies the first According to a criterion, reselect to the target cell.
  • the measurement target is indicated by the reselection target information, thereby reducing unnecessary reselection measurement and saving energy consumption of the terminal device.
  • the reselection configuration information also includes reselection time range information, which can be used in combination with reselection target information; if the target cell is measured and the target cell Reselecting to the target cell when the first criterion is met includes: if the target cell is measured within the time range indicated by the reselection time range information, and the target cell satisfies the first criterion, reselecting to the target cell The target cell.
  • the measurement target is indicated by the reselection target information, which can reduce unnecessary reselection measurement and save energy consumption of the terminal device.
  • the reselection time range information is used to indicate the time range for performing the reselection, that is, the reselection measurement is performed within a limited time range, which reduces the number of reselection measurements and can further save the energy consumption of the terminal device.
  • the reselection configuration information is carried in multicast messages, unicast messages, downlink control information, short messages, paging messages, or system messages.
  • an embodiment of the present application provides a cell reselection method, including: receiving non-reselection configuration information and reselection configuration information from a network device; and judging whether according to the reselection configuration information according to the non-reselection configuration information Information performs measurement for cell reselection.
  • the reselection configuration information includes at least one of reselection trigger information, reselection target information, and reselection time range information.
  • the non-reselection configuration information includes non-reselection condition information, and the non-reselection condition information includes measurement target cell information; according to the non-reselection configuration information, it is determined whether according to the non-reselection configuration information.
  • Performing measurement on the reselection configuration information to perform cell reselection includes: if the measurement target cell is measured, determining not to perform measurement according to the reselection configuration information to perform cell reselection.
  • the non-reselection condition information further includes a quality threshold; if the measurement target cell is measured, determining not to perform measurement based on the reselection configuration information for cell reselection includes: When the measurement target cell is reached and the quality of the measurement target cell is higher than the quality threshold, it is determined not to perform measurement according to the reselection configuration information to perform cell reselection.
  • the non-reselection configuration information includes non-reselection area information; according to the non-reselection configuration information, determining whether to perform measurement according to the reselection configuration information for cell reselection includes: If the terminal device is located in the area indicated by the non-reselection area information, it is determined not to perform measurement according to the reselection configuration information to perform cell reselection.
  • the non-reselection configuration information includes non-reselection time range information; according to the non-reselection configuration information, determining whether to perform measurement for cell reselection according to the reselection configuration information includes : Determine not to perform cell measurement for reselection according to the reselection configuration information within the non-reselection time range.
  • the reselection priority configuration information includes dedicated reselection priority configuration information and/or public reselection priority configuration information.
  • the reselection configuration information includes reselection trigger information
  • the reselection trigger information is used to trigger measurement to perform cell reselection
  • the reselection trigger information includes reselection trigger time information, Or reselect the trigger indication information.
  • the reselection trigger information includes reselection trigger time information; the performing measurement to perform cell reselection according to the reselection configuration information includes: indicating when the reselection trigger time information indicates When the time arrives, start the measurement for cell reselection.
  • the reselection trigger information includes reselection trigger indication information; the performing measurement to perform cell reselection according to the reselection configuration information includes: after obtaining the reselection trigger indication At the moment of information, start to perform measurement for cell reselection.
  • the reselection configuration information further includes reselection target information, and the reselection target information is used to indicate the information of the target cell measured after the reselection is triggered; the reselection configuration information is , Performing measurement to perform cell reselection includes: determining to perform measurement according to the reselection trigger information; if the target cell is measured and the target cell satisfies a first criterion, reselecting to the target cell.
  • the reselection configuration information further includes reselection time range information; if the target cell is measured and the target cell satisfies the first criterion, reselecting to the target cell includes: If the target cell is measured within the time range indicated by the reselection time range information, and the target cell satisfies the first criterion, reselect to the target cell.
  • the above-mentioned reselection configuration information and non-reselection configuration information can be carried in multicast messages, unicast messages, downlink control information, short messages, paging messages, or system messages, respectively.
  • an embodiment of the present application provides a cell reselection method, including: receiving cell reselection indication information of a serving cell from a network device, where the cell reselection indication information is used to indicate that the serving cell is a hopping cell; According to the cell reselection indication information, perform cell measurement, and measure at least one candidate cell that meets the first criterion; determine to reselect and camp on the target cell, and the target cell is a non-selective cell among the at least one candidate cell.
  • a hopping cell, and the target cell is a suitable cell.
  • the network equipment instructs the terminal equipment to reselect to other non-hopping cells or to camp in the current serving cell, which helps to avoid the impact of cell hopping on the terminal equipment's business and ensures that the terminal The business experience of the device. And, it helps to avoid unnecessary reselection and the increase of terminal equipment energy consumption.
  • the cell reselection indication information is carried in a multicast message, unicast message, downlink control information, short message, paging message, or system message.
  • an embodiment of the present application provides a cell reselection method, including: determining reselection configuration information, where the reselection configuration information includes reselection trigger information, reselection target information, reselection time range information, and cell reselection One or more of the indication information, the reselection trigger information is used to trigger measurement to be performed for cell reselection, the reselection trigger information includes reselection trigger time information or reselection trigger indication information, and the reselection trigger information
  • the target information is used to indicate the information of the target cell for reselection measurement
  • the reselection time range information is used to indicate the time range for measuring the target cell
  • the small reselection indication information is used to indicate the serving cell of the terminal device It is a hopping cell; sending the reselection configuration information to a terminal device, where the reselection configuration information is used by the terminal device to perform measurement for cell res
  • terminal equipment in a cell hopping scenario can perform cell reselection, avoiding abnormal situations that are not in the service area, and also reducing unnecessary reselection measurements and saving terminal equipment Energy consumption.
  • non-reselection configuration information it is also possible to send non-reselection configuration information to a terminal device, where the non-reselection configuration information is used by the terminal device to determine whether to perform measurement according to the reselection configuration information for cell reselection,
  • the non-reselection configuration information includes one or more of non-reselection condition information, quality threshold, non-reselection area information, and non-reselection time range information, and the non-reselection condition information includes measurement target cell information .
  • an embodiment of the present application provides a communication device.
  • the device may be a terminal device or a chip for the terminal device.
  • the device has the function of realizing the foregoing first aspect, or second aspect, or third aspect, or each embodiment of the first aspect, or each embodiment of the second aspect, or each embodiment of the third aspect.
  • This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • an embodiment of the present application provides a communication device.
  • the device may be a network device or a chip for the network device.
  • the device has the function of realizing the foregoing fourth aspect or the embodiments of the fourth aspect. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • an embodiment of the present application provides a communication device including a processor and a memory; the memory is used to store computer-executable instructions.
  • the processor executes the computer-executable instructions stored in the memory to enable The device executes the method as described in the first aspect to the fourth aspect, or the first aspect to the fourth aspect in each embodiment.
  • an embodiment of the present application provides a communication device, including a unit or means for executing each step of the first aspect to the fourth aspect, or the first aspect to the fourth aspect.
  • an embodiment of the present application provides a communication device, including a processor and an interface circuit.
  • the processor is configured to communicate with other devices or modules through the interface circuit, and perform the first to fourth aspects, or the first aspect. Aspect to the method of each embodiment of the fourth aspect.
  • the processor includes one or more.
  • the device may further include a memory, and the memory may be used to store instructions and/or data.
  • an embodiment of the present application provides a communication device, including a processor, configured to be connected to a memory and used to call a program stored in the memory to execute the first aspect to the fourth aspect, or the first aspect To the method of each embodiment of the fourth aspect.
  • the memory can be located inside the device or outside the device.
  • the processor includes one or more.
  • an embodiment of the present application also provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a computer, enable the above-mentioned first to fourth aspects, or The methods described in the embodiments of the first to fourth aspects are executed.
  • the embodiments of the present application also provide a computer program product including instructions, which when run on a computer, cause the computer to execute each of the first aspect to the fourth aspect, or the first aspect to the fourth aspect. The method described in the embodiment.
  • an embodiment of the present application further provides a chip system, including a processor, configured to execute the methods described in the first aspect to the fourth aspect, or the first aspect to the fourth aspect in each embodiment.
  • an embodiment of the present application also provides a communication system, including: a terminal device and a network device.
  • the network device is configured to send reselection configuration information to the terminal device, the reselection configuration information includes reselection trigger information, and the reselection trigger information is used to trigger measurement to perform cell reselection.
  • the selection trigger information includes reselection time information or reselection trigger indication information.
  • the terminal device is configured to perform measurement to perform cell reselection according to the reselection configuration information.
  • an embodiment of the present application also provides a communication system, including: a terminal device and a network device.
  • the network device is configured to send reselection configuration information and non-reselection configuration information to the terminal device, where the reselection configuration information includes reselection trigger information, and the reselection trigger information is used to trigger measurement to be performed for a cell Reselection, the reselection trigger information includes reselection time information or reselection trigger indication information.
  • the terminal device is configured to determine, according to the non-reselection configuration information, whether to perform measurement according to the reselection configuration information to perform cell reselection.
  • an embodiment of the present application provides a cell reselection system, including: terminal equipment and network equipment.
  • the network device is configured to send cell reselection indication information of a serving cell of the terminal device to the terminal device, where the cell reselection indication information is used to indicate that the serving cell is a hopping cell.
  • the terminal device is configured to perform cell measurement according to the cell reselection indication information, and measure at least one candidate cell that meets the first criterion; determine to reselect and camp on the target cell, the target cell being the At least one candidate cell is a non-hopping cell, and the target cell is a suitable cell.
  • an embodiment of the present application also provides a communication method, including: a network device sends reselection configuration information to a terminal device, where the reselection configuration information includes reselection trigger information, and the reselection trigger information is used to trigger Perform measurement to perform cell reselection, and the reselection trigger information includes reselection time information or reselection trigger indication information; the terminal device performs measurement to perform cell reselection according to the reselection configuration information.
  • an embodiment of the present application also provides a communication method, including: a network device sends reselection configuration information and non-reselection configuration information to a terminal device, where the reselection configuration information includes reselection trigger information, and the reselection configuration information includes reselection trigger information.
  • the selection trigger information is used to trigger the execution of measurement for cell reselection, the reselection trigger information includes reselection time information or reselection trigger indication information; the terminal device determines whether according to the reselection configuration information according to the non-reselection configuration information
  • the configuration information performs measurement for cell reselection.
  • an embodiment of the present application provides a cell reselection method, including: a network device sends to a terminal device cell reselection indication information of a serving cell of the terminal device, where the cell reselection indication information is used to indicate the service
  • the cell is a hopping cell.
  • the terminal device performs cell measurement according to the cell reselection indication information, and obtains at least one candidate cell that meets the first criterion by the measurement.
  • the terminal device determines to reselect and camp on a target cell, where the target cell is a non-hopping cell among the at least one candidate cell, and the target cell is a suitable cell.
  • Figure 1 is a schematic diagram of a network architecture applicable to this application
  • Figure 2A is an example diagram of cell hopping under satellite
  • Fig. 2B is another example diagram of cell hopping under satellite
  • FIG. 3 is a schematic diagram of a cell reselection method provided by an embodiment of this application.
  • FIG. 4 is a schematic diagram of another cell reselection method provided by an embodiment of this application.
  • FIG. 5 is a schematic diagram of another cell reselection method provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of another cell reselection method provided by an embodiment of this application.
  • FIG. 7 is a schematic diagram of a communication device provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of another communication device provided by an embodiment of this application.
  • FIG. 9 is a schematic diagram of a terminal device provided by an embodiment of the application.
  • FIG. 10 is a schematic diagram of a network device provided by an embodiment of this application.
  • FIG. 1 it is a schematic diagram of a network architecture to which the embodiments of this application are applicable, including terminal equipment and network equipment.
  • Network equipment is deployed in the NTN system, such as on satellites, mobile drones, or mobile hot air balloons.
  • the terminal device communicates with the network device through a wireless interface.
  • Terminal device is a device with wireless transceiver function. It can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air ( For example, airplanes, balloons, satellites, etc.).
  • the terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, and wireless terminals in transportation safety , Wireless terminals in smart cities, wireless terminals in smart homes, user equipment (UE), etc.
  • a mobile phone mobile phone
  • a tablet computer pad
  • a computer with wireless transceiver function a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, and wireless terminals in transportation safety , Wireless terminals in smart cities, wireless terminals in smart homes, user equipment (UE), etc.
  • VR virtual reality
  • AR augmented reality
  • industrial control industrial control
  • a network device is a device in a wireless network, for example, a radio access network (RAN) node that connects a terminal device to the wireless network.
  • RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit) , BBU), or wireless fidelity (Wifi) access point (AP), integrated access and backhaul (IAB), etc.
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • baseband unit baseband unit
  • BBU
  • the network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node.
  • the centralized unit CU node can be divided into a control plane (CU-CP) and a user plane (CU-UP).
  • CU-CP is responsible for control plane functions, mainly including Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP)-C.
  • RRC Radio Resource Control
  • PDCP-C Packet Data Convergence Protocol
  • PDCP-C is mainly responsible for encryption and decryption of control plane data, integrity protection, data transmission, etc.
  • CU-UP is responsible for user plane functions, and mainly includes Service Data Adaptation Protocol (SDAP) and PDCP-U.
  • SDAP is mainly responsible for processing the data of the core network and mapping the flow to the bearer.
  • PDCP-U is mainly responsible for data encryption and decryption, integrity protection, header compression, serial number maintenance, data transmission, etc.
  • CU-CP and CU-UP are connected through the E1 interface.
  • CU-CP stands for CU connected to the core network through the Ng interface. Connect with DU through F1-C (control plane).
  • CU-UP is connected to DU through F1-U (user plane).
  • F1-C user plane
  • another possible implementation is that PDCP-C is also in CU-UP.
  • the network equipment in the embodiment of the present application may be a network equipment of an NTN system (such as a satellite communication system, a high-altitude platform communication system or other non-terrestrial communication system), or a TN network equipment.
  • NTN system such as a satellite communication system, a high-altitude platform communication system or other non-terrestrial communication system
  • TN network equipment such as a TN network equipment.
  • the following embodiments of this application will take the deployment of network equipment on a satellite as an example for description.
  • “network equipment on a satellite” will be replaced with “satellite” in the subsequent description. That is, the communication between the terminal device and the satellite involved in the subsequent embodiments of the present application actually refers to the communication between the terminal device and the network device on the satellite.
  • the communication between the terminal device and the satellite involved in the subsequent embodiments of the present application actually refers to the communication between the terminal device and the network device on the satellite.
  • the satellite system can be divided into the following three categories:
  • Geostationary-Earth (Geostationary-Earth Orbit, GEO) satellite also known as a geostationary satellite.
  • the speed of the satellite is the same as that of the earth's rotation system, so the satellite remains stationary relative to the ground.
  • the cell of the GEO satellite is also stationary.
  • the coverage of the GEO satellite cell is relatively large, for example, the cell diameter may be 500 kilometers.
  • Low-Earth (Low-Earth Orbit, LEO) satellites satellites move relatively fast relative to the ground, about 7 kilometers per second, so the service coverage area provided by LEO satellites also moves.
  • Medium orbit satellites satellites between high orbit and low orbit.
  • the satellites involved in the embodiments of this application can be low-orbit satellites, or can be extended to medium-orbit satellites or other mobile network devices.
  • the embodiments of the present application will be referred to simply as satellites in the following.
  • the first form is a transparent forwarding (transparent) form, in which the satellite forwards the cell information of a ground network device (such as a base station, which is described below by taking the ground network device as a ground base station as an example).
  • a ground network device such as a base station, which is described below by taking the ground network device as a ground base station as an example.
  • the satellite cell can be fixed on the ground, or it can move with the movement of the satellite.
  • the satellite cell is fixed on the ground, which means that the coverage of the satellite cell on the ground is fixed. Specifically, it can be fixed for a period of time, or it can be permanently fixed.
  • the satellite cell moves with the movement of the satellite, that is, when the satellite moves, the cell generated by it also moves on the ground.
  • the satellite forwards the new base station’s Information about the cell.
  • the satellite receives the signal from the ground base station and forwards it to the ground.
  • the position of the ground base station remains unchanged. Therefore, although the cell under the ground base station forwarded by the satellite will follow the satellite's Operation, there is a certain degree of movement, but the moving range of the cell is around the periphery of the base station.
  • a cell can be identified by a physical cell identifier (PCI) and frequency, or a cell global identifier (CGI).
  • PCI physical cell identifier
  • CGI cell global identifier
  • the second form is the regenerative form, that is, the satellite can generate cell information by itself.
  • the satellite may include network equipment with similar functions such as DU, base station, or IAB.
  • the satellite cell can be fixed on the ground, or it can move with the movement of the satellite.
  • the satellite cell is fixed on the ground, which means that the coverage of the satellite cell on the ground is fixed. Specifically, it can be fixed for a period of time, or it can be permanently fixed.
  • the satellite cell moves with the movement of the satellite, that is, when the satellite moves, the cell generated by it also moves on the ground.
  • the satellite is moving, one possible implementation is that the cell it generates also moves on the ground. That is, the network equipment on the satellite does not dynamically adjust the beam direction, and the beam generated by the network equipment on the satellite moves on the ground along with the movement of the satellite.
  • the coverage area of the new satellite and the previous satellite can be the same or different. It is understandable that due to the difference in the operating direction, beam launch direction, and beam launch capability of the satellites, the ground coverage areas of the two satellites may not be completely the same.
  • the satellite since the satellite is mobile, the satellite transmits the signal of the ground base station connected to the satellite to the ground to form a corresponding cell. Depending on the ground base station connected to the satellite, the signal sent by the satellite is also different. Therefore, the signal of the cell forwarded by the satellite may hop. Among them, there are two kinds of jumps, which are explained separately below.
  • a satellite can be connected to multiple (more than one) ground base stations at the same time.
  • the satellite transmits the cell signals of base station 1 and base station 2 for a period of time, but at a certain moment the satellite does not forward the cell signal of base station 1, that is, base station 1 in the original coverage area.
  • the cell signal suddenly disappeared.
  • the cell of the base station 1 may be referred to as a "hopping cell”.
  • a satellite is connected to only one ground base station at a time.
  • the satellite jumps from base station 1 to connect to base station 2, after the satellite is connected to base station 2, it immediately forwards the cell signal of base station 2, and disconnects the connection with base station 1 so that the cell signal of base station 1 is no longer forwarded, that is, the original coverage of the satellite In the area, the cell signal of base station 1 suddenly disappears, and the cell signal of base station 2 suddenly appears.
  • the cell of the base station 1 may be referred to as a "hopping cell".
  • a "hopping cell” can be understood as a cell that exists dynamically, that is, after a certain moment, or a certain period of time, the signal of the cell does not exist or disappear in a certain area.
  • the original coverage area of the cell may be provided by a new cell for communication.
  • the embodiment of the present application takes the NTN system as an example, and it is understandable that the embodiment of the present application is also applicable to the TN system.
  • a cell is closed at a certain time or a certain period of time, and the closed cell can also be considered as a "hopping cell".
  • FIG. 2A it is an example diagram of cell hopping under the satellite.
  • satellite 1 and satellite 2 only support the forwarding of cell signals of one base station as an example.
  • Satellite 1 is connected to base station 1 and forwards the signal of cell 1 of base station 1; Satellite 2 is connected to base station 2 and forwards the signal of cell 2 of base station 2; Satellite 3 is connected to base station 3 and forwards the signal of cell 3 of base station 3 .
  • Time T2 (some time before the cell hopping occurs): Satellite 1 is connected to base station 1 and forwards the signal of cell 1 of base station 1; Satellite 2 is connected to base station 2 and forwards the signal of cell 2 of base station 2; satellite 3 and The base station 3 is connected and forwards the signal of the cell 3 of the base station 3.
  • the cell moves with the movement of the satellite, but cell hopping has not yet occurred.
  • satellite 1 will disconnect from base station 1, and jump to connect with base station 2
  • satellite 2 will disconnect from base station 2, and jump to connect with base station 3.
  • Time T3 (the time when the cell hopping occurs or a certain time after the hopping occurs): Satellite 0 is connected to base station 1 and forwards the signal of cell 1 of base station 1; Satellite 1 is connected to base station 2 and forwards the signal of cell 2 of base station 2 Signal; The satellite 2 is connected to the base station 3 and forwards the signal of the cell 3 of the base station 3.
  • satellite 1 jumps from connecting base station 1 and forwarding the signal of cell 1 of base station 1 to connecting base station 2 and forwarding the signal of cell 2 of base station 2, and satellite 2 connects to base station 2 and forwards the signal of cell 2 of base station 2 , It jumps to connect to the base station 3 and forwards the signal of the cell 3 of the base station 3.
  • the signal of cell 2 when there is an overlapping coverage area between cell 1 and cell 2 before the hopping (for example, time T2), the signal of cell 2 always exists in this area before and after the hopping.
  • time T2 UE1 is in the overlapping coverage area of cell 1 and cell 2, and the signals of cell 1 and cell 2 exist in this area.
  • time T3 due to the movement of the satellite, assuming that UE1 has not moved or moved out of the above-mentioned overlapping coverage area, UE1 will be in the overlapping coverage area of cell 2 and cell 3, and the signals of cell 2 and cell 3 exist in this area. Therefore, it can be seen that the signal of cell 2 always exists in this overlapping coverage area before and after the hopping.
  • an embodiment of the present application provides a cell reselection method.
  • This method can be applied to cell hopping scenarios.
  • the method may be executed by the UE or a component used for the UE (for example, a chip or a circuit, etc.).
  • the method may be executed by a network device (which may be a RAN device or a DU or CU), or a component used for the network device (for example, a chip or a circuit, etc.).
  • a network device which may be a RAN device or a DU or CU
  • a component used for the network device for example, a chip or a circuit, etc.
  • the following takes the UE and the network device to execute the method as an example for description.
  • the method includes the following steps:
  • Step 301 The network device sends reselection configuration information to the UE.
  • the UE can receive the reselection configuration information.
  • the network equipment When the network equipment is deployed on a satellite, taking the transparent forwarding form as an example, the network equipment can receive the reselection configuration information from the base station of the TN and forward it to the UE.
  • the reselection configuration information includes configuration information used for reselection.
  • the reselection configuration information may include at least one of reselection trigger information and reselection target information.
  • the reselection configuration information may also include reselection time range information.
  • the reselection configuration information can be carried in any of system messages, paging messages, multicast messages, unicast messages, short messages, and downlink control information.
  • the reselection trigger information is used to trigger the UE to perform measurement for cell reselection. That is, when the reselection trigger information is satisfied, regardless of whether the quality of the UE's serving cell satisfies the reselection condition, the UE performs measurement to perform cell reselection.
  • the reselection trigger information may include reselection trigger time information or reselection trigger indication information.
  • the reselection trigger time information is used to instruct the UE to perform measurement immediately to perform the cell reselection process when the reselection trigger time arrives.
  • the above-mentioned "reselection trigger time information" can be expressed in a variety of ways.
  • the reselection trigger time information can be absolute time (such as universal time coordinated, UTC), global positioning system (global positioning system). , GPS) clock, network broadcast system frame number (SFN system frame number, SFN) and other time information); and/or, the reselection trigger time information may be relative time (such as GPS clock count offset , At least one of other time information such as relative SFN offset based on the SFN broadcast on the network).
  • the reselection trigger time information includes an absolute time and a relative time
  • the UE may determine the reselection trigger time according to the foregoing absolute time and relative time.
  • the reselection trigger indication information is used to instruct the UE to immediately perform measurement for cell reselection.
  • the reselection trigger indication information may also be referred to as either a reselection trigger command or a reselection trigger instruction.
  • at least one bit of bit information can trigger the UE to perform measurement immediately to perform cell reselection.
  • the UE may immediately perform measurement according to the reselection priority configuration information of the neighboring cell of the serving cell according to the reselection trigger indication information.
  • the reselection priority configuration information may include, for example, one or more of frequency point information, frequency point priority information, and PCI information under the frequency point.
  • the neighboring cells of the serving cell include one or more of neighboring cells of the same frequency, neighboring cells of different frequencies, and neighboring cells of different systems.
  • the reselection priority configuration information may include dedicated reselection priority configuration information and/or public reselection priority configuration information.
  • the reselection priority configuration information sent through dedicated signaling may be referred to as dedicated reselection priority configuration information, and the reselection priority configuration information sent through system messages may be referred to as public reselection priority configuration information.
  • the reselection configuration information and the reselection priority configuration information may be sent to the UE through different messages or through different signaling procedures, or the reselection configuration information may also be the same as the reselection priority configuration information.
  • the level configuration information is sent to the UE through a message.
  • the above-mentioned “measurement performed by the UE” may include at least one of measurement performed by the UE on the current cell, intra-frequency measurement, inter-frequency measurement, and inter-system measurement.
  • UE performs measurement can be understood as the measurement performed by the UE in cell reselection.
  • the UE's measurement of the serving cell may be performed periodically.
  • the UE does not perform measurement can be understood as the UE does not perform cell reselection measurement.
  • the reselection target information is used to indicate information about the target cell for reselection measurement; or, the reselection target information is used to trigger the UE to perform measurement according to the information of the target cell to perform cell reselection.
  • the reselection target information may be the frequency of the target cell, or the frequency and physical cell identity of the target cell.
  • the reselection target information may also be used to indicate that the target cell has the highest priority. It is understandable that when the reselection target information exists, "the UE performs measurement” may at least include "the UE performs measurement according to the information of the target cell".
  • the reselection time range information is used to indicate that within the time range, the UE can perform measurement according to reselection trigger information and/or reselection target information to perform cell reselection.
  • the reselection time range information may include time length, or start time information and time length, or start time information and end time information, or end time information.
  • the UE may ignore the reselection trigger information and/or the reselection target information.
  • the UE may perform measurement according to the reselection priority configuration information described above to perform cell reselection.
  • the reselection time range information limits the effective time of the reselection trigger information and/or reselection target information.
  • the reselection trigger information and/or reselection The target information is valid, but outside the time range indicated by the reselection time range information, the reselection trigger information and/or reselection target information is invalid. For example, the UE may ignore the reselection trigger information and/or reselection target information.
  • the UE performs measurement according to a normal procedure or rule to perform cell reselection (that is, the UE performs a traditional cell reselection procedure).
  • the traditional cell reselection process for example, refer to the corresponding section in TS38.304 v15.4.0 or TS36.304 v15.4.0.
  • Step 302 The UE performs measurement to perform cell reselection according to the reselection configuration information.
  • the UE can measure the target cell according to the reselection target information. Perform cell reselection. That is, when the reselection target information exists, the UE may perform measurement only according to the reselection target information, that is, it may ignore the reselection priority configuration information. If the UE measures the target cell indicated by the reselection target information, or the UE measures the target cell indicated by the reselection target information and the quality of the target cell meets the first quality condition, the UE performs cell reselection to the target cell.
  • reselection target information for example, the frequency of the target cell, or the frequency and physical cell identity of the target cell
  • the UE may perform cell reselection according to the reselection priority configuration information, that is, in this situation, the UE performs measurement according to a normal procedure or rule to perform cell reselection.
  • the quality of the cell includes received signal code power (RSCP), reference signal receiving power (RSRP), reference signal receiving quality (reference signal receiving power, RSRP), and reference signal receiving power (RSRP).
  • RSCP received signal code power
  • RSRP reference signal receiving power
  • RSRP reference signal receiving quality
  • RSRPQ signal receiving quality
  • SNR Signal-to-noise ratio
  • SINR signal to interference plus noise ratio
  • SI reference signal strength indication
  • the quality of a cell can be at the cell level, beam level, synchronization signal/physical broadcast channel block level, air interface technology (numerology) level, slicing level, or bandwidth part (Bandwidth part, BWP) level.
  • the quality of the downlink signal can be measured by measuring the downlink synchronization channel, channel-state information (CSI) reference signal (CSI-RS), demodulation reference signal (Demodulation reference signal, DMRS), cell reference signal (Cell-Specific Reference Signal, CRS) signal, synchronization signal (synchronization signal, SS), synchronization signal/physical broadcast channel block (synchronization signal/physical broadcast channel block, SS/PBCH Block) or other downlink signals are obtained.
  • the quality reference threshold of the cell may include at least one of RSCP threshold, RSRP threshold, RSRQ threshold, SNR threshold, SINR threshold, RSSI threshold or other quality thresholds.
  • a beam can be understood as a spatial resource, and can refer to a transmission or reception precoding vector with energy transmission directivity.
  • the transmitted or received precoding vector can be identified by index information, and the index information can correspond to the resource identification (identity, ID) of the configuration terminal, for example, the index information can correspond to the identity or resource of the configured CSI-RS ; It may also be the identifier or resource of the correspondingly configured SSB; it may also be the identifier or resource of the correspondingly configured uplink sounding reference signal (Sounding Reference Signal, SRS).
  • the index information may also be index information that is displayed or implicitly carried by a signal or channel carried by a beam.
  • the energy transmission directivity may refer to the precoding processing of the signal to be sent through the precoding vector, the signal after the precoding processing has a certain spatial directivity, and receiving the precoding processing of the precoding vector
  • the signal has good received power, such as meeting the signal-to-noise ratio of reception and demodulation, etc.; the energy transmission directivity can also mean that the same signal sent from different spatial positions received through the precoding vector has different received power.
  • the reselection target information may also be used to indicate that the target cell has the highest priority or the highest quality ranking or the best quality.
  • the UE when the UE measures the target cell, the UE performs reselection to the target cell; or the UE considers the quality of the target cell to be the best, so the UE performs reselection to the target cell. That is, the UE determines to preferentially reselect to the target cell according to the reselection target information, so when the target cell is measured, it performs reselection to the target cell.
  • the "best quality" cell in the embodiment of this application may be the cell with the largest or highest ranking value among the candidate cells, or it may be the cell with the most good beams in the second cell (for example, beam quality). The number of beams exceeding a certain threshold).
  • the second cell includes the cell with the largest ranking value and the difference between its ranking value and the largest ranking value within a certain range (such as x dB, where x is configurable) Of the cell.
  • the ranking value can be understood as a quality result determined according to the measurement quality of the cell.
  • the UE may start a timer according to the reselection time range information. For example, if the reselection time range information includes the length of time, the UE can start the timer after receiving the reselection configuration information, or start the timer when the reselection trigger time is reached, so the effective time range of the timer is: timer start Time to timer start time + length of time.
  • the UE starts the timer at the time indicated by the start time information, and stops the timer at the time indicated by the end time information, so the effective time range of the timer It is: start time information to end time information.
  • the UE Take the reselection configuration information at least including reselection trigger time information as an example.
  • the UE immediately performs measurement to perform the cell reselection process.
  • the reselection configuration information including at least reselection trigger time information and reselection time range information as an example.
  • the reselection time range information indicates a time length.
  • the UE starts the timer, and sets the time length of the timer to the time length indicated by the reselection time range information.
  • the UE immediately performs measurement when the timer starts to perform the cell reselection process.
  • the timer stops the UE can determine whether to perform measurement for cell reselection according to the quality of the serving cell.
  • the UE can perform cell reselection according to the reselection configuration information.
  • the UE can stop the timer. If the timer expires and the UE does not reselect to another cell, optionally, the UE can perform cell reselection according to the reselection priority configuration information described above. At this time, optionally, the UE may delete the above-mentioned reselection configuration information.
  • the UE can take priority to perform measurement according to the reselection target information within the running time of the timer. If the UE reselects to the target cell indicated by the reselection target information, the UE Stop the timer; if the UE cannot reselect the target cell within the running time of the timer, the UE can perform measurement according to the reselection priority configuration information described above. As yet another implementation manner, within the running time of the timer, the UE simultaneously performs cell reselection according to the reselection target information and the reselection priority configuration information described above.
  • the UE when the UE measures multiple candidate cells for reselection, if the target cell indicated by the reselection target information is included, the UE performs reselection to the target cell; or the UE considers the quality of the target cell to be the best, so the UE Perform reselection to the target cell; or the UE performs reselection to the cell with the best quality.
  • the UE performs measurement only according to the target cell indicated by the reselection target information. If the UE cannot reselect the target cell within the running time of the timer, when the timer expires, the UE can perform measurement according to the reselection priority configuration information described above.
  • the UE can perform cell reselection according to the reselection priority configuration information described above during the running time of the timer, that is, regardless of the UE’s Whether the quality of the serving cell satisfies the reselection condition, during the running time of the timer, the UE performs measurement according to the reselection priority configuration information described above.
  • the UE may discard the above-mentioned reselection configuration information.
  • base station 2 determines that the reselection configuration information includes:
  • Reselection trigger time information T2;
  • Reselection target information the frequency of cell 3 and the PCI of cell 3;
  • Reselection time range information time period information, take the length of the time period from T2 to T3 as an example.
  • Base station 2 sends the aforementioned reselection configuration information to UEs (including UE1 and UE2) in cell 2.
  • the base station 2 may send the above-mentioned reselection configuration information to the UE through the network equipment on the satellite 2 connected to it.
  • UE1 and UE2 perform operations related to cell reselection according to the foregoing reselection configuration information.
  • T2 Take the network device on the satellite 2 or the base station 2 sending the foregoing reselection configuration information to the UE at any time before the time T2 as an example. For example, when T2 arrives, UE1 and UE2 only measure the quality of cell 3 according to the reselection target information within the time range from T2 to T3, and the quality of cell 3 meets the first criterion, then UE1 and UE2 reselect to cell 3. .
  • UE1 can perform measurement according to the reselection priority configuration information during the time period from T2 to T3, and , Outside of the time period from T2 to T3, the measurement can also be performed according to the reselection priority configuration information.
  • the UE1 performing measurement according to the reselection priority configuration information may be based on the cell reselection mechanism in the prior art (for example, refer to the relevant description in 3GPP TS38.304 v15.4.0) to determine the reselection The target cell.
  • UE1 measures multiple cells that meet the quality conditions
  • UE1 may perform cell reselection according to the frequency priority, for example, try to reselect the cell with the best quality among the cells with the highest frequency priority.
  • the frequency point priority here is an example of reselection priority configuration information.
  • the reselection configuration information including the reselection trigger information is introduced. Based on the reselection configuration information, a method for implementing cell reselection by the UE in the cell hopping scenario is given, which helps prevent the UE from being unable to communicate normally. Case. Further, when the reselection configuration information includes reselection target information, unnecessary reselection measurements can also be reduced, and UE energy consumption can be saved. When the reselection configuration information includes reselection time range information, the number of reselection measurements can be reduced, thereby further saving UE energy consumption.
  • an embodiment of the present application provides yet another cell reselection method.
  • This method can be applied to scenes that trigger jumps, or to scenes after jumps occur.
  • the method may be executed by the UE or a component used for the UE (for example, a chip or a circuit, etc.).
  • the method may be executed by a network device (which may be a RAN device or a DU or CU), or a component used for the network device (for example, a chip or a circuit, etc.).
  • a network device which may be a RAN device or a DU or CU
  • a component used for the network device for example, a chip or a circuit, etc.
  • the following takes the UE and the network device to execute the method as an example for description.
  • the method includes the following steps:
  • Step 401 The network device sends reselection configuration information and non-reselection configuration information to the UE.
  • the UE can receive the reselection configuration information and the non-reselection configuration information.
  • the reselection configuration information includes at least one of reselection trigger information, reselection target information, and reselection time range information.
  • reselection trigger information For the specific description of the reselection trigger information, the reselection target information, and the reselection time range information, reference may be made to the relevant description of the embodiment corresponding to FIG. 3.
  • the network equipment When the network equipment is deployed on a satellite, taking the transparent forwarding form as an example, the network equipment can receive the reselection configuration information from the base station of the TN and forward it to the UE.
  • the reselection configuration information and the non-reselection configuration information can be carried in the same message or in different messages.
  • the reselection configuration information and the non-reselection configuration information can be carried in any of system messages, paging messages, multicast messages, unicast messages, short messages, and downlink control information, respectively.
  • the non-reselection configuration information includes at least one of non-reselection condition information and non-reselection area information.
  • the non-reselection configuration information may also include non-reselection time range information. It can be understood that the non-reselection configuration information may also be referred to as reselection configuration deactivation information.
  • the UE may not perform measurement based on the reselection configuration information. For example, the UE may continue to camp on the current serving cell, that is, the serving cell remains unchanged.
  • the UE may not perform measurement according to the reselection target information.
  • the UE may perform measurement according to the reselection priority configuration information described above to perform cell reselection.
  • the non-reselection condition information is used to indicate that the UE does not perform measurement according to the reselection configuration information when the non-reselection condition information is satisfied.
  • the non-reselection condition information may include the information of the measurement target cell, or the information and the quality threshold of the measurement target cell.
  • the information of the measurement target cell may be a frequency point, or a frequency point and a physical cell identifier, or a CGI. It is understandable that when the non-reselection condition information includes the information of the measurement target cell, "the UE performs measurement” may at least include "the UE performs the measurement according to the information of the measurement target cell".
  • the non-reselection area information is used to instruct the UE to determine an area that does not need to perform measurement according to the reselection configuration information.
  • the non-reselection area information may include the longitude and/or latitude range, or other area range information.
  • the non-reselection time range information is used to indicate the time range in which the UE determines that it is not necessary to perform measurement according to the reselection configuration information. That is, within the time range indicated by the non-reselection time range information, the UE does not perform measurement according to the reselection configuration information.
  • the non-reselection time range information may include the latest time information when the measurement is not performed according to the reselection configuration information, or the cut-off time information when the measurement is not performed according to the reselection configuration information.
  • the latest time information when the measurement is not performed according to the reselection configuration information or the cut-off time information when the measurement is not performed according to the reselection configuration information may be the reselection trigger time information, or a certain moment after the reselection trigger time information.
  • the latest time determined by the non-reselection time range information is the end time determined by the reselection time range information, or a certain moment after the end time determined by the reselection time range information.
  • the non-reselection time range information is the reselection time range information in the embodiment corresponding to FIG. 3. For details, refer to the description in the embodiment corresponding to FIG. 3, which will not be repeated here.
  • the non-reselection time range information may also be predefined as the reselection trigger time information, that is, the time range indicated by the non-reselection time range information is the same as the time range indicated by the reselection trigger time information.
  • step 402 the UE determines whether to perform measurement according to the reselection configuration information to perform cell reselection according to the non-reselection configuration information.
  • the network device may determine the measurement target cell information in the non-reselection condition information according to the satellite's operating trajectory and neighboring cell information.
  • the quality threshold may also be predefined, that is, the reselection configuration information may not carry the quality threshold.
  • the network device sends the non-reselection condition information to the UE in cell 2 of satellite 2 including: the frequency and PCI of cell 1. If the UE determines that cell 1 can be measured, the UE does not configure it according to the reselection configuration. Information execution measurement.
  • UE1 can measure cell 1 before the cell hopping. After the cell hopping, the UE does not perform measurement according to the reselection configuration information, that is, UE1 still camps on cell 2, that is, the serving cell of UE1 is still cell 2. Or, if the quality of cell 1 measured by the UE is higher than the quality threshold, the UE does not perform reselection.
  • the non-reselection configuration information at least including non-reselection area information as an example. If the UE can determine that it is in the non-reselection area, the UE does not perform measurement according to the reselection configuration information. Wherein, the UE may determine that it is in the non-reselection area according to the location information determined by its positioning capability, or it may determine that it is in the non-reselection area according to the location information received from the network device. As an example, referring to FIG. 2A, the longitude and/or latitude range indicated by the network device sending the non-reselection area information to the UE in the cell 2 of the satellite 2 includes the overlapping coverage area A in FIG. 2A. The UE1 determines that it is in the overlapping coverage area A, and after a cell hopping occurs, it determines not to perform measurement according to the reselection configuration information.
  • the UE may start a timer according to the non-reselection time range information. For example, if the non-reselection time range information includes the length of time, the UE can start the timer after receiving the non-reselection configuration information, so the effective time range of the timer is: timer start time to timer start time + time length .
  • the UE starts the timer at the time indicated by the start time information, and stops the timer at the time indicated by the end time information, so the effective time of the timer The range is: start time information to end time information.
  • the non-reselection time range information includes the cut-off time information for not performing measurement based on the reselection configuration information
  • the UE starts the timer after receiving the non-reselection configuration information, so the effective time range of the timer is: timer start Time to the time indicated by the cut-off time information for not performing measurement based on the reselection configuration information.
  • the UE may not perform measurement according to the reselection configuration information.
  • the UE may not perform measurement during the running time of the timer; it is understandable that the "measurement" here is a measurement other than the measurement on the own cell.
  • the UE only does not perform measurement based on the reselection configuration information.
  • the UE may perform measurement according to the reselection priority configuration information described above to perform cell reselection.
  • the description is made by taking the terminal device receiving the reselection configuration information and the non-reselection configuration information sent by the network device as an example, and taking the network device as a satellite in the form of transparent forwarding of the base station as an example.
  • base station 2 determines non-reselection configuration information and reselection configuration information.
  • the non-reselection configuration information includes:
  • Reselection configuration information includes:
  • the base station 2 sends the above-mentioned reselection configuration information and non-reselection configuration information to the UEs in the cell 2 (including UE1 and UE2).
  • the base station 2 may send the foregoing reselection configuration information and non-reselection configuration information to the UE through a network device on the satellite 2 connected to it.
  • the network equipment on the satellite 2 or the base station 2 can send the aforementioned reselection configuration information and non-reselection configuration information to the UE at any time before the time T2.
  • UE1 and UE2 firstly determine whether cell reselection needs to be performed according to the aforementioned non-reselection configuration information.
  • UE1 determines that it can measure the frequency of cell 1 and the PCI of cell 1, and the quality of cell 1 is greater than the quality threshold (Q1), then UE1 determines that it meets the conditions for non-reselection configuration information , That is, there is no need to perform measurement based on the reselection configuration information after T2. Therefore, when the time T2 arrives, UE1 remains camped in cell 2. Although its connected satellite has changed from satellite 2 to satellite 1, from the perspective of UE1, UE1 still camps in cell 2. Therefore, for the UE1, the UE1 will not perform the following cell reselection operation in step 403 before the time T3 or within the time range from T2 to T3. Or, optionally, UE1 may perform measurement according to the aforementioned reselection priority configuration information before time T3.
  • Step 403 The UE performs measurement to perform cell reselection according to the reselection configuration information.
  • This step is optional.
  • step 403 is executed.
  • step 302 For the implementation of the UE performing measurement to perform cell reselection according to the reselection configuration information, reference may be made to the description of step 302 in the embodiment corresponding to FIG. 3, which will not be repeated here.
  • the UE may also perform measurement according to the reselection configuration information and the reselection priority configuration information to Perform cell reselection.
  • the UE in the satellite scenario can perform cell reselection, which reduces unnecessary reselection measurements and further saves UE energy consumption.
  • an embodiment of the present application provides yet another cell reselection method.
  • This method can be applied to scenes that trigger jumps, or to scenes after jumps occur.
  • the method may be executed by the UE or a component used for the UE (for example, a chip or a circuit, etc.).
  • the method may be executed by a network device (which may be a RAN device or a DU or CU), or a component used for the network device (for example, a chip or a circuit, etc.).
  • a network device which may be a RAN device or a DU or CU
  • a component used for the network device for example, a chip or a circuit, etc.
  • the following takes the UE and the network device to execute the method as an example for description.
  • the method includes the following steps:
  • Step 501 The network device sends non-reselection configuration information to the UE.
  • the UE can receive the non-reselection configuration information.
  • Step 502 The UE determines whether to perform measurement to perform cell reselection according to the non-reselection configuration information.
  • the UE determines not to perform measurement to perform cell reselection.
  • the UE determines to perform measurement to perform cell reselection.
  • measurement can be performed according to the reselection priority configuration information to perform cell reselection.
  • the UE For the specific implementation method for the UE to perform measurement according to the reselection priority configuration information to perform cell reselection, reference may be made to the related description of the embodiment corresponding to FIG. 4, and details are not repeated here.
  • the various implementations of the content carried by the non-reselection configuration information in the embodiment corresponding to FIG. 4 may refer to the corresponding implementation of the non-reselection configuration information in the embodiment corresponding to FIG. 4, which will not be repeated here. Go into details. That is, the non-reselection configuration information in the embodiment corresponding to FIG. 5 may be the same as the non-reselection configuration information in the embodiment corresponding to FIG. For various different implementation manners, reference may be made to the corresponding description of the embodiment corresponding to FIG. 4.
  • the UE determines not to perform measurement based on the reselection configuration information to perform cell reselection. Instead, it is possible to perform measurement for cell reselection or not to perform reselection according to the reselection priority configuration information.
  • the UE determines to perform measurement according to the reselection configuration information to perform cell reselection, or perform measurement according to the reselection configuration information and reselection priority configuration information to perform cell reselection.
  • the UE determines not to perform measurement to perform cell reselection.
  • the UE determines to perform measurement to perform cell reselection, for example, it may perform measurement to perform cell reselection according to the reselection priority configuration information.
  • the UE in the satellite scenario can perform cell reselection, which reduces unnecessary reselection measurements and further saves UE energy consumption.
  • an embodiment of the present application provides another cell reselection method.
  • This method can be applied to the scene before the cell hopping occurs.
  • the method may be executed by the UE or a component used for the UE (for example, a chip or a circuit, etc.).
  • the method may be executed by a network device (which may be a RAN device or a DU or CU), or a component used for the network device (for example, a chip or a circuit, etc.).
  • a network device which may be a RAN device or a DU or CU
  • a component used for the network device for example, a chip or a circuit, etc.
  • the following takes the UE and the network device to execute the method as an example for description.
  • the method includes the following steps:
  • Step 601 The network device sends cell reselection indication information to the UE.
  • the UE can receive the cell reselection indication information.
  • the cell reselection indication information is used to instruct the UE to perform cell reselection immediately, or to instruct the UE to perform measurement immediately for cell reselection, or to instruct the UE to set the priority of the frequency of the current serving cell to the lowest, or use It is used to instruct the UE to set the priority of the current serving cell to the lowest, or to indicate that the current serving cell of the UE will hop, or to indicate that the current serving cell is a hopping cell.
  • the network device when the network device sends the cell reselection indication information to the UE, it is used to indicate that the cell is a "hopping cell”; when the network device is not Send cell reselection indication information to the UE, and the cell is a "non-hopping cell”. Or, the network device sends cell reselection indication information to the UE, and the different values of the cell reselection indication information indicate that the cell is a "hopping cell” or a "non-hopping cell”.
  • the cell reselection indication information can be carried by multicast messages, unicast messages, downlink control information, short messages, paging messages, or system messages.
  • Step 602 The UE determines to reselect and camp on a target cell, the target cell is a non-hopping cell among the candidate cells whose measured cell quality meets the first criterion, and the target cell is a suitable cell (suitable cell) .
  • the method for the UE to determine whether a cell is a hopping cell may be: the UE reads the system message sent by the cell, and if the system message sent by the cell carries cell reselection indication information (or the cell reselection indication information carried) Indicate that the cell is a hopping cell), indicating that the cell is a hopping cell.
  • the cell reselection indication information is similar to the implementation mode and function of the cell reselection indication information in step 601, and will not be repeated here.
  • the method for the UE to determine whether a certain cell is a suitable cell may be: the UE according to whether the UE is a subscriber of the network identity to which the cell belongs and whether the status of the cell is "access restricted” or "access prohibited”
  • a method to determine whether a certain cell is a suitable cell.
  • the UE determines that the UE is a subscriber of the network identity to which the cell belongs according to the system message sent by the cell; secondly, the UE determines that the status of the cell is not “connected” according to the system message sent by the cell.
  • Access restriction or “access barring”
  • the UE can determine that the cell is a suitable cell; if the UE determines that the status of the cell is “access restriction” or “access barring” according to the system message sent by the cell, the UE can Determine that the cell is not a suitable cell.
  • an implementation manner for the UE to determine the target cell from the candidate cells in the above step 602 is given below, which includes part or all of the following steps A to C.
  • Step A The UE determines the first cell among the candidate cells whose cell quality meets the first criterion.
  • the first cell refers to the cell with the best quality among the above-mentioned candidate cells.
  • the "best quality" cell may be the cell with the highest ranking value among the candidate cells, or it may be the cell with the most good beams (for example, beams whose beam quality exceeds a certain threshold) in the second cell.
  • the second cell includes the cell with the largest ranking value among the candidate cells, and the cell with the difference between the ranking value and the largest ranking value within a certain range (such as x dB, where x is configurable).
  • the current serving cell of the UE is not included in the foregoing candidate cells.
  • the UE sets the priority of the current serving cell to the lowest according to the cell reselection indication information, or it is understood that the ranking value of the current serving cell is ranked last.
  • Step B The UE tries to perform reselection of the first cell.
  • the UE attempts to perform reselection of the first cell, which can be understood as trying to reselect to the first cell, but the result of the reselection may be success or failure.
  • the UE performs the process of reselecting the first cell, for example:
  • step C If the first cell is not a hopping cell or a suitable cell, it is determined that the first cell is not reselected, that is, the reselection fails, and step C is performed.
  • the UE can reselect and camp on the first cell, that is, the reselection is successful, and the process ends.
  • the first cell may be referred to as the target cell.
  • Step C The UE sets the ranking of the first cell to the lowest, or the priority of the first cell is the lowest.
  • the first cell that was originally ranked first is moved to the last position of the ranking.
  • the UE in this step C, can also move the first cell in the ranking of the candidate cells to the middle position of the ranking, that is, to move between the first and the last.
  • step C the ranking of the cells among the candidate cells changes, and then go to step A above. That is, according to the latest ranking result, the operation of selecting the first cell is continued until a certain cell in the candidate cells is successfully reselected, or all cells in the candidate cells cannot be reselected successfully.
  • the UE may camp on the current serving cell.
  • the UE may also add the current first cell among the candidate cells, or the current first cell among the candidate cells and other cells at the same frequency as the current first cell ( (It can be called the third cell) is excluded from the candidate cell.
  • the UE may exclude the current first cell among the candidate cells, or exclude the current first cell and the third cell among the candidate cells from the candidate cells within a period of time (for example, the maximum may be 300s), that is, at this time During this period, the current first cell, or the current first cell and the third cell do not participate in the selection of the first cell in the subsequent steps, that is, during this period of time, the UE does not select the current first cell, or the current first cell and Any cell in the third cell is used as the first cell in the next round of selection.
  • a period of time for example, the maximum may be 300s
  • UE1 receives the cell reselection indication information sent by the serving cell (ie, cell 2) via satellite 2, and UE1 determines that cell 2 will occur according to the cell reselection indication information. Jump, thereby triggering UE1 to perform the cell reselection process. For example, UE1 measures cell 1 and cell 2, UE1 performs ranking ranking on cell 1 and cell 2, and sets the ranking ranking of cell 2 to the lowest, so that the ranking result obtained is: cell 1>cell 2.
  • UE1 reads the system message sent by cell 1 (cell 1 can be called the first cell at this time). Since cell 1 is a hopping cell, it will carry cell reselection indication information in the system message. UE1 reads cell 1 The system message confirms that cell 1 is a hopping cell. Therefore, the UE1 determines to camp on the current serving cell, that is, cell 2. That is, if the UE determines that all the measured cells (ie, cell 1, cell 2) are hopping cells, the UE determines to camp on the current serving cell.
  • UE1 receives the cell reselection indication information sent by the serving cell (ie, cell 2) via satellite 2, and UE1 determines that cell 2 will meet with the cell reselection indication information.
  • a jump occurs, which triggers UE1 to perform the cell reselection process.
  • UE1 measures cell 1, cell 2 and cell 5, UE1 performs ranking ranking on cell 1, cell 2 and cell 5, and sets the ranking ranking of cell 2 to the lowest.
  • the ranking result obtained is: cell 1>cell 5 >District 2.
  • UE1 reads the system message sent by cell 1 (cell 1 can be called the first cell at this time). Assuming that cell 1 is a hopping cell, it will carry the cell reselection indication information in the system message. UE1 reads cell 1 The system message confirms that cell 1 is a hopping cell. At this time, regardless of whether cell 1 is a suitable cell, UE1 will set the ranking of cell 1 to the lowest, or understand that because cell 1 is a hopping cell, there is no need to confirm whether cell 1 is a suitable cell, UE1 will set cell 1 The Ranking ranking is set to the lowest, and the new ranking result is: cell 5>cell 2>cell 1.
  • UE1 reads the system message of cell 5 (cell 5 can be called the first cell at this time).
  • the system message of cell 5 does not carry cell reselection indication information (that is, cell 5 is a non-hopping cell), and the cell The status of 5 is not “access restricted” or “access barred” (that is, cell 5 is a suitable cell), so UE1 determines to camp on cell 5.
  • the network equipment instructs the UE to reselect to other non-hopping cells or camp in the current serving cell, which helps to avoid the impact of cell hopping on the UE's services and ensures the UE's services Experience. And, it helps to avoid the increase of UE energy consumption caused by unnecessary reselection.
  • the embodiments of the present application are described by taking the NTN system as an example.
  • the embodiment of the present application may also be applicable to the TN system, which is not limited in the embodiment of the present application.
  • the terminal device and/or the network device can perform some or all of the steps in the embodiments of the present application. These steps or operations are only examples, and the embodiments of the present application may also perform other operations or various operations. Deformation of the operation. In addition, each step may be executed in a different order presented in the embodiments of the present application, and it may not be necessary to perform all the operations in the embodiments of the present application.
  • the above-mentioned embodiment corresponding to FIG. 3 to the embodiment corresponding to FIG. 6 can be implemented in combination with each other.
  • the embodiment corresponding to FIG. 6 may be performed first. If the UE does not complete cell reselection after performing the embodiment corresponding to FIG. 6, that is, the cells measured by the UE are all hopping cells, and therefore the UE stays in the current serving cell.
  • the embodiment corresponding to FIG. 3, or the embodiment corresponding to FIG. 4, or the embodiment corresponding to FIG. 5 may be executed again, and the UE may then determine whether to try to perform cell measurement for cell reselection.
  • the embodiment corresponding to FIG. 4 or the embodiment corresponding to FIG. 5 may be executed first.
  • the UE performs measurement according to the reselection priority configuration information in the embodiment corresponding to FIG. 4 or FIG.
  • the UE performs measurement according to the reselection priority configuration information, and if there is a target cell (that is, a non-hopping cell with the best quality) among the measured candidate cells, it tries to reselect to the target cell.
  • the CU when the network device includes a CU and a DU, the CU can send any information in any of the foregoing embodiments to the DU. For example, taking non-reselection configuration information and/or reselection configuration information and/or cell reselection instruction information sent through system messages as an example, the CU sends at least one of the above-mentioned information to the DU, and sends it to the terminal device through the DU.
  • the DU may send non-reselection configuration information and/or reselection configuration information and/or cell reselection indication information and/or hopping indication information to the CU, and the hopping indication information is used
  • the CU determines that the cell under the DU will hop.
  • the DU may also send the information of the cell under the DU to the CU.
  • the cell information here may include at least one of a cell identity, a cell frequency point, a physical cell identity, and a cell global identity.
  • any of the foregoing information can be sent through at least one of an interface establishment request message, an interface establishment response message, a configuration update message, and a configuration update confirmation message.
  • the CU may encode the system message or system message block according to the above information received from the DU, or the CU may The handover target is determined according to the above information received from the DU, so that the CU can handover the UE to other network devices in time.
  • the CU may also indicate that the reason for the switch is "satellite movement" or "cell hopping".
  • the CU can determine that the first cell will hop. Therefore, the CU will configure the UE under the first cell to perform measurement or handover to ensure the first cell. The service experience of the UE in the cell.
  • the network device in any of the foregoing embodiments may also send other network devices (hereinafter referred to as the second network device) (directly (through the interface between the base station and the base station, such as X2, Xn interface) or indirectly (through the interface between the base station and the core network device, such as the S1 or NG interface) to send non-reselection configuration information and/or reselection configuration information and/or cell reselection indication information and/or hopping indication information.
  • the first network device may also send information about the first cell under the first network device to the second network device.
  • the information may be sent through at least one of the following messages: X2/Xn interface establishment request message, X2 /Xn interface establishment response message, node configuration update message, node configuration update confirmation message, handover request (handover request or handover required) message, handover request confirmation message, handover command message.
  • the second network device can determine The first cell under the first network device will hop, so that the second network device can definitely avoid reselection of the UE under the second network device or handover to the first network device.
  • the terminal device and/or the network device can perform some or all of the steps in the embodiments of the present application. These steps or operations are only examples, and the embodiments of the present application may also perform other operations or various operations. Deformation of the operation. In addition, each step may be executed in a different order presented in the embodiments of the present application, and it may not be necessary to perform all the operations in the embodiments of the present application. In the various embodiments of this application, if there are no special instructions and logical conflicts, the terms and/or descriptions between different embodiments are consistent and can be mutually cited. The technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.
  • the method implemented by the terminal device can also be implemented by a component (such as a chip or circuit) that can be used for the terminal device
  • the method implemented by the network device can also be implemented by the method that can be used for the network device.
  • the component for example, a chip or a circuit
  • FIG. 7 shows a possible exemplary block diagram of the communication device involved in the embodiments of the present application, and the communication device 700 may exist in the form of software or hardware.
  • the communication device 700 may include: a receiving unit 710 and a reselecting unit 720.
  • the receiving unit 710 is used to support communication between the communication device 700 and other network entities or other modules in the communication device 700.
  • the communication device 700 may further include a storage unit, and the storage unit may be used to store instructions and/or data.
  • the reselection unit 720 may read the instructions and/or data in the storage unit to enable the communication device 700 to implement The corresponding method.
  • the processing unit may be a processor or a controller, for example, a general-purpose central processing unit (central processing unit, CPU), a general-purpose processor, and a digital Signal processing (digital signal processing, DSP), application specific integrated circuits (ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or other random combination. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of the present application.
  • CPU central processing unit
  • DSP digital Signal processing
  • ASIC application specific integrated circuits
  • FPGA field programmable gate array
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the receiving unit 710 may be a communication interface, a receiver, or a receiving circuit, etc., where the communication interface is a general term. In a specific implementation, the communication interface may include at least one interface.
  • the communication device 700 may be a terminal device for executing the embodiment corresponding to FIG. 3 and/or FIG. 4 and/or FIG. 5 and/or FIG. 6, and may also be a terminal device for executing FIG. 3 and/or FIG. 4 and/or FIG.
  • the chip corresponding to the steps of the terminal device in the embodiment corresponding to FIG. 5 and/or FIG. 6.
  • the processing unit when the reselection unit 720 is integrated in a processing unit, the processing unit may be, for example, a processor, and the receiving unit 710 may be, for example, a receiver, and the receiver includes a radio frequency circuit.
  • the processing unit may be, for example, a processor, and the receiving unit 710 may be, for example, an input interface, a pin, or a circuit.
  • the receiving unit 710 is configured to receive reselection configuration information from a network device, the reselection configuration information includes reselection trigger information, the reselection trigger information is used to trigger measurement to be performed for cell reselection, and the reselection trigger information It includes reselection time information or reselection trigger indication information; the reselection unit 720 is configured to perform measurement to perform cell reselection according to the reselection configuration information.
  • the reselection trigger information includes reselection trigger time information; and the reselection unit 720 is specifically configured to initiate measurement to perform cell measurement when the time indicated by the reselection trigger time information arrives. Re-elect.
  • the reselection trigger information includes reselection trigger indication information; the reselection unit 720 is specifically configured to initiate measurement to perform cell reselection at the moment when the reselection trigger indication information is acquired. .
  • the reselection configuration information further includes reselection target information, and the reselection target information is used to indicate the information of the target cell for reselection measurement; the reselection unit 720 is specifically configured to Reselect trigger information, determine to perform measurement; if the target cell is measured and the target cell meets the first criterion, reselect to the target cell.
  • the reselection configuration information further includes reselection time range information; the reselection unit 720 is configured to reselect to if the target cell is measured and the target cell satisfies the first criterion
  • the target cell includes: if the target cell is measured within the time range indicated by the reselection time range information, and the target cell satisfies a first criterion, reselect to the target cell.
  • the receiving unit 710 is configured to receive non-reselection configuration information and reselection configuration information from the network device; the reselection unit 720 is configured to determine, according to the non-reselection configuration information, whether to perform measurement according to the reselection configuration information to perform Cell reselection.
  • the non-reselection configuration information includes non-reselection condition information, and the non-reselection condition information includes information about the measurement target cell; the reselection unit 720 is specifically configured to: The target cell determines not to perform measurement according to the reselection configuration information to perform cell reselection.
  • the non-reselection condition information further includes a quality threshold; the reselection unit 720 is specifically configured to: if the measurement target cell is measured and the quality of the measurement target cell is higher than the quality The threshold is determined not to perform measurement according to the reselection configuration information to perform cell reselection.
  • the non-reselection configuration information includes non-reselection area information; the reselection unit 720 is specifically configured to determine whether the terminal device is located in the area indicated by the non-reselection area information.
  • the reselection configuration information performs measurement for cell reselection.
  • the non-reselection configuration information includes non-reselection time range information; the reselection unit 720 is specifically configured to determine that the non-reselection time range is not based on the reselection configuration information. Perform cell measurement for reselection.
  • the reselection unit 720 is further configured to perform cell reselection without performing measurement after determining that the measurement is not performed according to the reselection configuration information to perform cell reselection.
  • the reselection unit 720 is further configured to perform measurement according to the reselection priority configuration information of the neighboring cell of the serving cell after determining that the measurement is not performed according to the reselection configuration information for cell reselection.
  • the reselection priority configuration information includes dedicated reselection priority configuration information and/or public reselection priority configuration information.
  • the reselection unit 720 is further configured to perform measurement to perform cell reselection according to the reselection configuration information after determining to perform measurement according to the reselection configuration information to perform cell reselection.
  • the reselection configuration information includes reselection trigger information
  • the reselection trigger information is used to trigger measurement to perform cell reselection
  • the reselection trigger information includes reselection trigger time information, Or reselect the trigger indication information.
  • the reselection trigger information includes reselection trigger time information; the reselection unit 720 is configured to perform measurement to perform cell reselection according to the reselection configuration information, including: When the time indicated by the reselection trigger time information arrives, the measurement is started to perform cell reselection.
  • the reselection trigger information includes reselection trigger indication information; the reselection unit 720 is configured to perform measurement to perform cell reselection according to the reselection configuration information, including: At the moment when the reselection trigger indication information is obtained, the measurement is started to perform cell reselection.
  • the reselection configuration information further includes reselection target information, and the reselection target information is used to indicate information about the target cell measured after the reselection is triggered;
  • the reselection unit 720 is configured to perform measurement to perform cell reselection according to the reselection configuration information, including: determining to perform measurement according to the reselection trigger information; if the target cell is measured and the The target cell meets the first criterion and is reselected to the target cell.
  • the reselection configuration information further includes reselection time range information; the reselection unit 720 is configured to reselect to if the target cell is measured and the target cell satisfies the first criterion
  • the target cell includes: if the target cell is measured within the time range indicated by the reselection time range information, and the target cell satisfies a first criterion, reselect to the target cell.
  • the receiving unit 710 is configured to receive cell reselection indication information of a serving cell from a network device, where the cell reselection indication information is used to indicate that the serving cell is a hopping cell;
  • the reselection unit 720 is configured to perform cell measurement according to the cell reselection indication information, and measure at least one candidate cell that meets the first criterion; determine to reselect and camp on the target cell, where the target cell is the At least one candidate cell is a non-hopping cell, and the target cell is a suitable cell.
  • the cell reselection indication information is carried in a short message, a paging message, or a system message.
  • the device shown in FIG. 7 is for the specific beneficial effects of the method for performing cell reselection, and reference may be made to related descriptions in the method embodiments shown in FIG. 3, FIG. 4, FIG. 5, and FIG. 6, which will not be repeated here. It can be understood that the units in the embodiments of the present application may also be referred to as modules. The above-mentioned units or modules can exist independently or integrated together.
  • FIG. 8 shows a possible exemplary block diagram of the communication device involved in the embodiments of the present application, and the communication device 800 may exist in the form of software or hardware.
  • the communication device 800 may include a determining unit 810 and a sending unit 820.
  • the sending unit 820 is used to support communication between the communication device 800 and other network entities or other modules in the communication device 800.
  • the communication device 800 may further include a storage unit, and the storage unit may be used to store instructions and/or data.
  • the determining unit 810 may read the instructions and/or data in the storage unit, so that the communication device 800 can implement corresponding Methods.
  • the processing unit may be a processor or a controller, for example, a CPU, general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, Transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of the present application.
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the sending unit 820 may be a communication interface, a transmitter, or a transmitting circuit, etc., where the communication interface is a general term. In a specific implementation, the communication interface may include at least one interface.
  • the communication device 800 may be a network device for executing the embodiment corresponding to FIG. 3 and/or FIG. 4 and/or FIG. 5 and/or FIG. 6, and may also be a network device for executing FIG. 3 and/or FIG. 4 and/or FIG.
  • the chip corresponding to the steps of the network device in the embodiment corresponding to FIG. 5 and/or FIG. 6.
  • the processing unit when the determining unit 810 is integrated in a processing unit, the processing unit may be, for example, a processor, and the sending unit 820 may be, for example, a transmitter, and the transmitter includes a radio frequency circuit.
  • the processing unit may be, for example, a processor, and the sending unit 820 may be, for example, an output interface, a pin, or a circuit.
  • the determining unit 810 is configured to determine reselection configuration information, where the reselection configuration information includes one or more of reselection trigger information, reselection target information, and reselection time range information, and the reselection trigger information is used for Trigger measurement to perform cell reselection, the reselection trigger information includes reselection trigger time information or reselection trigger indication information, the reselection target information is used to indicate the information of the target cell for reselection measurement, and the reselection trigger information The time range information is used to indicate the time range for measuring the target cell.
  • the sending unit 820 is configured to send the reselection configuration information to a terminal device, where the reselection configuration information is used by the terminal device to perform measurement to perform cell reselection.
  • the sending unit 820 is further configured to send non-reselection configuration information to the terminal device, and the non-reselection configuration information is used by the terminal device to determine whether to perform measurement according to the reselection configuration information.
  • Cell reselection is performed, and the non-reselection configuration information includes one or more of non-reselection condition information, quality threshold, non-reselection area information, and non-reselection time range information, and the non-reselection condition information includes Measure the information of the target cell.
  • the terminal equipment includes: an antenna 910, a radio frequency device 920, and a signal processing part 930.
  • the antenna 910 is connected to the radio frequency device 920.
  • the radio frequency device 920 receives the information sent by the network device through the antenna 910, and sends the information sent by the network device to the signal processing part 930 for processing.
  • the signal processing part 930 processes the information of the terminal equipment and sends it to the radio frequency device 920
  • the radio frequency device 920 processes the information of the terminal equipment and sends it to the network equipment via the antenna 910.
  • the signal processing part 930 is used to realize the processing of each communication protocol layer of the data.
  • the signal processing part 930 may be a subsystem of the terminal device, and the terminal device may also include other subsystems, such as a central processing subsystem, which is used to process the terminal device operating system and application layer; another example is the peripheral sub-system.
  • the system is used to realize the connection with other equipment.
  • the signal processing part 930 may be a separately provided chip.
  • the above devices may be located in the signal processing part 930.
  • the signal processing part 930 may include one or more processing elements 931, for example, a main control CPU and other integrated circuits, and an interface circuit 933.
  • the signal processing part 930 may also include a storage element 932.
  • the storage element 932 is used to store data and programs.
  • the program used to execute the method executed by the terminal device in the above method may or may not be stored in the storage element 932, for example, stored in a memory other than the signal processing part 930 During use, the signal processing part 930 loads the program into the cache for use.
  • the interface circuit 933 is used to communicate with the device.
  • the above devices may be located in the signal processing part 930, and the signal processing part 930 may be realized by a chip.
  • the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute each step of any method executed by the above terminal device.
  • the circuit is used to communicate with other devices.
  • the unit that implements each step in the above method can be implemented in the form of a processing element scheduler.
  • the device includes a processing element and a storage element, and the processing element calls a program stored by the storage element to execute the above method embodiments.
  • the storage element may be a storage element whose processing element is on the same chip, that is, an on-chip storage element.
  • the program used to execute the method executed by the terminal device in the above method may be a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the processing element calls or loads a program from the off-chip storage element on the on-chip storage element to call and execute the method executed by the terminal device in the above method embodiment.
  • the unit of the terminal device that implements each step in the above method may be configured as one or more processing elements, and these processing elements are provided on the signal processing part 930, where the processing elements may be integrated circuits, such as : One or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • the units that implement each step in the above method can be integrated together and implemented in the form of a system-on-a-chip (SOC), and the SOC chip is used to implement the above method.
  • SOC system-on-a-chip
  • the chip can integrate at least one processing element and a storage element, and the processing element can call the stored program of the storage element to implement the method executed by the above terminal device; or, the chip can integrate at least one integrated circuit to implement the above terminal The method executed by the device; or, it can be combined with the above implementations.
  • the functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.
  • the above apparatus may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any method executed by the terminal device provided in the above method embodiment.
  • the processing element can execute part or all of the steps executed by the terminal device in the first way: calling the program stored in the storage element; or in the second way: combining instructions through the integrated logic circuit of the hardware in the processor element Part or all of the steps performed by the terminal device are executed in a manner; of course, part or all of the steps executed by the terminal device can also be executed in combination with the first manner and the second manner.
  • the processing element here is the same as the above description, and it may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or, one or more micro-processing DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element can be a memory or a collective term for multiple storage elements.
  • the network equipment includes: an antenna 1010, a radio frequency device 1020, and a baseband device 1030.
  • the antenna 1010 is connected to the radio frequency device 1020.
  • the radio frequency device 1020 receives the information sent by the terminal device through the antenna 1010, and sends the information sent by the terminal device to the baseband device 1030 for processing.
  • the baseband device 1030 processes the information of the terminal device and sends it to the radio frequency device 1020
  • the radio frequency device 1020 processes the information of the terminal device and sends it to the terminal device via the antenna 1010.
  • the baseband device 1030 may include one or more processing elements 1031, for example, a main control CPU and other integrated circuits, and an interface 1033.
  • the baseband device 1030 may also include a storage element 1032, the storage element 1032 is used to store programs and data; the interface 1033 is used to exchange information with the radio frequency device 1020, the interface is, for example, a common public radio interface (CPRI) .
  • the above apparatus for network equipment may be located in the baseband apparatus 1030.
  • the above apparatus for network equipment may be a chip on the baseband apparatus 1030.
  • the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute the above network. For each step of any method executed by the device, the interface circuit is used to communicate with other devices.
  • the unit for the network device to implement each step in the above method can be implemented in the form of a processing element scheduler.
  • the device for the network device includes a processing element and a storage element, and the processing element calls the program stored by the storage element to Perform the method performed by the network device in the above method embodiment.
  • the storage element may be a storage element with the processing element on the same chip, that is, an on-chip storage element, or a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the unit of the network device that implements each step in the above method may be configured as one or more processing elements, and these processing elements are arranged on the baseband device.
  • the processing elements here may be integrated circuits, such as one Or multiple ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • the units for the network equipment to implement each step in the above method can be integrated together and implemented in the form of an SOC.
  • the baseband device includes the SOC chip for implementing the above method.
  • At least one processing element and storage element can be integrated in the chip, and the processing element can call the stored program of the storage element to implement the method executed by the above network device; or, at least one integrated circuit can be integrated in the chip to implement the above network The method executed by the device; or, it can be combined with the above implementations.
  • the functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.
  • the above apparatus for a network device may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any of the methods performed by the network device provided in the above method embodiments.
  • the processing element can execute part or all of the steps executed by the network device in the first way: calling the program stored in the storage element; or in the second way: combining instructions through the integrated logic circuit of the hardware in the processor element Part or all of the steps performed by the network device are executed in the method; of course, part or all of the steps executed by the network device above can also be executed in combination with the first method and the second method.
  • the processing element here is the same as the above description, and it may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or, one or more micro-processing DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element can be a memory or a collective term for multiple storage elements.
  • An embodiment of the present application also provides a communication system, which includes the terminal device in any of the foregoing method embodiments and the network device in this embodiment.
  • At least one refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one (piece, species) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or Multiple.
  • Multiple refers to two or more than two, and other quantifiers are similar.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state drive (SSD)).
  • the various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, Discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions.
  • the general-purpose processor may be a microprocessor.
  • the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
  • the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration. achieve.
  • the steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other storage medium in the art.
  • the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium.
  • the storage medium may also be integrated into the processor.
  • the processor and the storage medium can be arranged in the ASIC, and the ASIC can be arranged in the terminal.
  • the processor and the storage medium may also be provided in different components in the terminal.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Abstract

本申请实施例提供一种小区重选方法、装置及系统。该方法包括：从网络设备接收重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选时间信息或重选触发指示信息；根据所述重选配置信息，执行测量以进行小区重选。本申请实施例，引入了包括重选触发信息的重选配置信息，基于该重选配置信息，给出了小区跳变场景下终端设备执行小区重选的实现方法，有助于避免发生终端设备无法正常通信的情况。

Description

小区重选方法、装置及系统 技术领域
本申请涉及通信技术领域，尤其涉及小区重选方法、装置及系统。
背景技术
由于传统地面网络(terrestrial network，TN)不能为终端设备提供无缝覆盖，特别是在大海、沙漠、空中等无法部署网络设备的地方，非陆地网络(Non-terrestrial network，NTN)系统被引入到第五代(the 5th generation，5G)系统中。NTN系统可以包括卫星通信系统、高空平台(high altitude platform station，HAPS)通信系统或者其它非地面的通信系统。NTN系统通过将网络设备或者部分网络设备功能部署在卫星、移动无人机、或移动热气球等上面，为终端设备提供无缝覆盖，并且NTN系统受自然灾害影响较小，能提升5G系统的可靠性。
NTN系统中的网络设备通过转发其连接的地面基站的信号到地面，形成相应的小区。由于NTN系统中的网络设备是移动的，因此其连接的地面基站也会发生变化，根据网络设备连接的地面基站的不同，网络设备发送的信号也不同，因此存在网络设备转发的小区信号发生跳变的情况，也即发生小区跳变。
此外，针对TN系统，基于节能或者其它原因，在某一时刻或者某一段时间关闭某一小区，导致该小区的信号发生跳变，即TN系统中也存在小区跳变。
针对小区跳变的应用场景，终端设备如何执行小区重选，有待解决。
发明内容
本申请实施例提供小区重选方法、装置及系统，用于实现小区跳变场景下的小区重选。
第一方面，本申请实施例提供一种小区重选方法，包括：从网络设备接收重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选时间信息或重选触发指示信息；根据所述重选配置信息，执行测量以进行小区重选。
基于上述实施例，引入了包括重选触发信息的重选配置信息，基于该重选配置信息，给出了小区跳变场景下终端设备执行小区重选的实现方法，有助于避免发生终端设备无法正常通信的情况。
在一些可能的实现方法中，所述重选触发信息包括重选触发时间信息；所述根据所述重选配置信息，执行测量以进行小区重选，包括：在所述重选触发时间信息指示的时间到达的时刻，启动执行测量以进行小区重选。
基于上述实施例，通过重选触发时间信息，指示了启动执行测量以进行小区重选的时间。
在一些可能的实现方法中，所述重选触发信息包括重选触发指示信息；所述根据所述重选配置信息，执行测量以进行小区重选，包括：在获取到所述重选触发指示信息的时刻，启动执行测量以进行小区重选。
基于上述实施例，通过重选触发指示信息，指示了启动执行测量以进行小区重选的时 间。
在一些可能的实现方法中，所述重选配置信息还包括重选目标信息，该重选目标信息可以和重选触发信息结合使用，所述重选目标信息用于指示重选测量的目标小区的信息；所述根据所述重选配置信息，执行测量以进行小区重选，包括：根据所述重选触发信息，确定执行测量；若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
基于上述实施例，通过重选目标信息指示测量的目标，从而可以减少不必要的重选测量，节省终端设备能耗。
在一些可能的实现方法中，所述重选配置信息还包括重选时间范围信息，该重选时间范围信息可以和重选目标信息结合使用；若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区，包括：若在所述重选时间范围信息指示的时间范围内测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
基于上述实施例，通过重选目标信息指示测量的目标，可以减少不必要的重选测量，节省终端设备能耗。并通过重选时间范围信息指示执行重选的时间范围，也即在限定的时间范围内执行重选测量，减少了重选测量的次数，可以进一步节省终端设备能耗。
在一些可能的实现方法中，所述重选配置信息携带于组播消息、单播消息、下行控制信息、短消息、寻呼消息、或系统消息中。
第二方面，本申请实施例提供一种小区重选方法，包括：从网络设备接收不重选配置信息和重选配置信息；根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选。其中，该重选配置信息包括重选触发信息、重选目标信息、重选时间范围信息中的至少一种。
基于上述实施例，通过引入不重选配置信息，避免了部分终端设备的不必要的小区重选，节省了终端设备的能耗。
在一些可能的实现方法中，所述不重选配置信息包括不重选条件信息，所述不重选条件信息包括测量目标小区的信息；根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选，包括：若测量到所述测量目标小区，确定不根据所述重选配置信息执行测量以进行小区重选。
基于上述实施例，通过给定测量目标小区，当测量到测量目标小区时，则不执行小区重选，也即驻留在当前服务小区，可以减少不必要的测量，减少终端设备的能耗。
在一些可能的实现方法中，所述不重选条件信息还包括质量门限；若测量到所述测量目标小区，确定不根据所述重选配置信息执行测量以进行小区重选，包括：若测量到所述测量目标小区、且所述测量目标小区的质量高于所述质量门限，确定不根据所述重选配置信息执行测量以进行小区重选。
在一些可能的实现方法中，所述不重选配置信息包括不重选区域信息；根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选，包括：若所述终端设备位于所述不重选区域信息指示的区域，确定不根据所述重选配置信息执行测量以进行小区重选。
基于上述实施例，通过给定不重选时间区域信息，当处于不重选时间区域时，则不执行小区重选，也即驻留在当前服务小区，可以减少不必要的测量，减少终端设备的能耗。
在一些可能的实现方法中，所述不重选配置信息包括不重选时间范围信息；根据所述 不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选，包括：确定在所述不重选时间范围内，不根据所述重选配置信息执行小区测量以进行重选。
基于上述实施例，通过给定不重选时间范围信息，当处于不重选时间范围时，则不执行小区重选，也即驻留在当前服务小区，可以减少不必要的测量，减少终端设备的能耗。
在一些可能的实现方法中，在确定不根据所述重选配置信息执行测量以进行小区重选后，不执行测量以进行小区重选。
在一些可能的实现方法中，在确定不根据所述重选配置信息执行测量以进行小区重选后，根据服务小区的邻区的重选优先级配置信息执行测量以进行小区重选，所述重选优先级配置信息包括专用重选优先级配置信息和/或公共重选优先级配置信息。
在一些可能的实现方法中，在确定根据所述重选配置信息执行测量以进行小区重选后，根据所述重选配置信息，执行测量以进行小区重选。
在一些可能的实现方法中，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选触发时间信息、或重选触发指示信息。
在一些可能的实现方法中，所述重选触发信息包括重选触发时间信息；所述根据所述重选配置信息，执行测量以进行小区重选，包括：在所述重选触发时间信息指示的时间到达的时刻，启动执行测量以进行小区重选。
在一些可能的实现方法中，所述重选触发信息包括重选触发指示信息；所述根据所述重选配置信息，执行测量以进行小区重选，包括：在获取到所述重选触发指示信息的时刻，启动执行测量以进行小区重选。
在一些可能的实现方法中，所述重选配置信息还包括重选目标信息，所述重选目标信息用于指示重选触发后测量的目标小区的信息；所述根据所述重选配置信息，执行测量以进行小区重选，包括：根据所述重选触发信息，确定执行测量；若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
在一些可能的实现方法中，所述重选配置信息还包括重选时间范围信息；若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区，包括：若在所述重选时间范围信息指示的时间范围内测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
在一些可能的实现方法中，上述重选配置信息、不重选配置信息分别均可以携带于组播消息、单播消息、下行控制信息、短消息、寻呼消息、或系统消息中。
第三方面，本申请实施例提供一种小区重选方法，包括：从网络设备接收服务小区的小区重选指示信息，所述小区重选指示信息用于指示所述服务小区为跳变小区；根据所述小区重选指示信息，执行小区测量，并测量得到满足第一准则的至少一个候选小区；确定重选并驻留到目标小区，所述目标小区为所述至少一个候选小区中的非跳变小区、且所述目标小区为合适小区。
基于上述实施例，在小区发生跳变前，网络设备指示终端设备重选到其它非跳变小区或驻留在当前服务小区，有助于避免小区跳变对终端设备的业务影响，保证了终端设备的业务体验。并且，有助于避免不必要的重选而造成的终端设备能耗增加。
在一些可能的实现方法中，所述小区重选指示信息携带于组播消息、单播消息、下行控制信息、短消息、寻呼消息、或系统消息中。
第四方面，本申请实施例提供一种小区重选方法，包括：确定重选配置信息，所述重选配置信息包括重选触发信息、重选目标信息、重选时间范围信息、小区重选指示信息中的一种或多种，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选触发时间信息或重选触发指示信息，所述重选目标信息用于指示重选测量的目标小区的信息，所述重选时间范围信息用于指示测量所述目标小区的时间范围，所述小重选指示信息用于指示所述终端设备的服务小区为跳变小区；向终端设备发送所述重选配置信息，所述重选配置信息用于所述终端设备执行测量以进行小区重选。
基于上述实施例，通过引入重选配置信息，使得小区跳变场景下的终端设备可以执行小区重选，避免了不在服务区的异常情况，此外还减少了不必要的重选测量，节省终端设备能耗。
在一些可能的实现方法中，还可以向终端设备发送不重选配置信息，所述不重选配置信息用于所述终端设备判断是否根据所述重选配置信息执行测量以进行小区重选，所述不重选配置信息包括不重选条件信息、质量门限、不重选区域信息、不重选时间范围信息中的一种或多种，所述不重选条件信息包括测量目标小区的信息。
第五方面，本申请实施例提供一种通信装置，该装置可以是终端设备，还可以是用于终端设备的芯片。该装置具有实现上述第一方面、或第二方面、或第三方面、或第一方面的各实施例、或第二方面的各实施例、或第三方面的各实施例的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第六方面，本申请实施例提供一种通信装置，该装置可以是网络设备，还可以是用于网络设备的芯片。该装置具有实现上述第四方面或第四方面的各实施例的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第七方面，本申请实施例提供一种通信装置，包括处理器和存储器；该存储器用于存储计算机执行指令，当该装置运行时，该处理器执行该存储器存储的该计算机执行指令，以使该装置执行如上述第一方面至第四方面、或第一方面至第四方面的各实施例的方法。
第八方面，本申请实施例提供一种通信装置，包括用于执行上述第一方面至第四方面、或第一方面至第四方面的各实施例的各个步骤的单元或手段(means)。
第九方面，本申请实施例提供一种通信装置，包括处理器和接口电路，所述处理器用于通过接口电路与其它装置或者模块通信，并执行上述第一方面至第四方面、或第一方面至第四方面的各实施例的方法。该处理器包括一个或多个。可选的，该装置还可以包括存储器，该存储器可以用于存储指令和/或数据。
第十方面，本申请实施例提供一种通信装置，包括处理器，用于与存储器相连，用于调用所述存储器中存储的程序，以执行上述第一方面至第四方面、或第一方面至第四方面的各实施例的方法。该存储器可以位于该装置之内，也可以位于该装置之外。且该处理器包括一个或多个。
第十一方面，本申请实施例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中存储有指令，当其在计算机上运行时，使得上述第一方面至第四方面、或第一方面至第四方面的各实施例所述的方法被执行。
第十二方面，本申请实施例还提供一种包括指令的计算机程序产品，当其在计算机上 运行时，使得计算机执行上述第一方面至第四方面、或第一方面至第四方面的各实施例所述的方法。
第十三方面，本申请实施例还提供一种芯片系统，包括：处理器，用于执行上述第一方面至第四方面、或第一方面至第四方面的各实施例所述的方法。
第十四方面，本申请实施例还提供一种通信系统，包括：终端设备和网络设备。所述网络设备，用于向所述终端设备发送重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选时间信息或重选触发指示信息。所述终端设备，用于根据所述重选配置信息，执行测量以进行小区重选。
第十五方面，本申请实施例还提供一种通信系统，包括：终端设备和网络设备。所述网络设备，用于向所述终端设备发送重选配置信息和不重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选时间信息或重选触发指示信息。所述终端设备，用于根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选。
第十六方面，本申请实施例提供一种小区重选系统，包括：终端设备和网络设备。所述网络设备，用于向所述终端设备发送所述终端设备的服务小区的小区重选指示信息，所述小区重选指示信息用于指示所述服务小区为跳变小区。所述终端设备，用于根据所述小区重选指示信息，执行小区测量，并测量得到满足第一准则的至少一个候选小区；确定重选并驻留到目标小区，所述目标小区为所述至少一个候选小区中的非跳变小区、且所述目标小区为合适小区。
第十七方面，本申请实施例还提供一种通信方法，包括：网络设备向终端设备发送重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选时间信息或重选触发指示信息；终端设备根据所述重选配置信息，执行测量以进行小区重选。
第十八方面，本申请实施例还提供一种通信方法，包括：网络设备向终端设备发送重选配置信息和不重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选时间信息或重选触发指示信息；终端设备根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选。
第十九方面，本申请实施例提供一种小区重选方法，包括：网络设备向终端设备发送终端设备的服务小区的小区重选指示信息，所述小区重选指示信息用于指示所述服务小区为跳变小区。终端设备根据所述小区重选指示信息，执行小区测量，并测量得到满足第一准则的至少一个候选小区。终端设备确定重选并驻留到目标小区，所述目标小区为所述至少一个候选小区中的非跳变小区、且所述目标小区为合适小区。
附图说明
图1为本申请所适用的一种网络架构示意图；
图2A为卫星下的小区跳变的一个示例图；
图2B为卫星下的小区跳变的又一个示例图；
图3为本申请实施例提供的一种小区重选方法示意图；
图4为本申请实施例提供的又一种小区重选方法示意图；
图5为本申请实施例提供的又一种小区重选方法示意图；
图6为本申请实施例提供的又一种小区重选方法示意图；
图7为本申请实施例提供的一种通信装置示意图；
图8为本申请实施例提供的又一种通信装置示意图；
图9为本申请实施例提供的一种终端设备示意图；
图10为本申请实施例提供的一种网络设备示意图。
具体实施方式
如图1所示，为本申请实施例所适用的一种网络架构示意图，包括终端设备和网络设备。网络设备部署在NTN系统中，比如部署在卫星、移动无人机、或移动热气球等上面。该终端设备通过无线接口与网络设备通信。
终端设备(terminal device)，是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、用户设备(user equipment，UE)等。
网络设备，是无线网络中的设备，例如将终端设备接入到无线网络的无线接入网(radio access network，RAN)节点。目前，一些RAN节点的举例为：gNB、传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(wireless fidelity，Wifi)接入点(access point，AP)、接入回传一体化(integrated access and backhaul，IAB)等。在一种网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点、或分布单元(distributed unit，DU)节点、或包括CU节点和DU节点的RAN设备。在一种网络结构中，集中单元CU节点可以划分为控制面(CU-CP)和用户面(CU-UP)。其中CU-CP负责控制面功能，主要包含无线资源控制(Radio Resource Control，RRC)和分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)-C。PDCP-C主要负责控制面数据的加解密，完整性保护，数据传输等。CU-UP负责用户面功能，主要包含服务数据适配协议(Service Data Adaptation Protocol，SDAP)和PDCP-U。其中SDAP主要负责将核心网的数据进行处理并将flow映射到承载。PDCP-U主要负责数据面的加解密，完整性保护，头压缩，序列号维护，数据传输等。其中CU-CP和CU-UP通过E1接口连接。CU-CP代表CU通过Ng接口和核心网连接。通过F1-C(控制面)和DU连接。CU-UP通过F1-U(用户面)和DU连接。当然还有一种可能的实现是PDCP-C也在CU-UP。
本申请实施例中的网络设备可以是NTN系统(如卫星通信系统、高空平台通信系统或者其它非地面的通信系统)的网络设备，也可以是TN的网络设备。为便于说明，本申 请实施例后续将以网络设备部署在卫星上为例进行说明。并且，为描述方便，本申请实施例后续将“卫星上的网络设备”用“卫星”进行替代说明。也即，本申请实施例后续涉及的终端设备与卫星之间的通信，实际上指的是终端设备与卫星上的网络设备之间的通信。这里统一说明，后续不再赘述。
按照卫星高度，即卫星轨位高度，可以将卫星系统分为如下三类：
1)高轨(Geostationary-Earth Orbit，GEO)卫星：又称为静止卫星，卫星运动速度与地球自转系统相同，因此卫星相对地面保持静止状态，对应的，GEO卫星的小区也是静止的。GEO卫星小区的覆盖较大，例如小区直径可能为500千米。
2)低轨(Low-Earth Orbit，LEO)卫星：卫星相对地面移动较快，大约7千米/秒，因此LEO卫星提供的服务覆盖区域也随之移动。
3)中轨卫星：介于高轨与低轨之间的卫星。
本申请实施例涉及的卫星可以是低轨卫星，也可以扩展到中轨卫星或其它移动的网络设备。为便于说明，本申请实施例后续简称为卫星。
卫星提供服务覆盖区域时，一般有两种形式。
第一种形式为透明转发(transparent)形式，卫星转发地面网络设备(如基站，以下均以地面网络设备为地面基站为例进行说明)的小区的信息。透明转发形式下，卫星小区可以是地面固定的，也可以随着卫星的移动而移动。卫星小区是地面固定的，是指卫星小区在地面的覆盖是固定的。具体的，可以是一段时间内是固定的，也可以是永久固定的。卫星小区随着卫星的移动而移动，即当卫星移动时，其生成的小区也跟随在地面上移动。如果卫星移动时，卫星和原基站的连接存在，一种可能的方式是原基站的小区跟着卫星走一会(即保持一段时间的连接)；当卫星连接至新基站，则卫星转发新基站的小区的信息。在该透明转发形式中，卫星接收地面基站的信号并转发到地面，此时虽然卫星不停的运行，但是地面基站的位置不变，因此卫星转发的地面基站下的小区虽然也会随卫星的运行，有一定的移动，但是该小区的移动范围都是围绕基站的周边。
一种可能的设计，一个小区可以用物理小区标识(physical cell identifier，PCI)和频点，或者小区全局标识(cell global identifier，CGI)来标识。
第二种形式为再生(regenerative)形式，即卫星可以自己生成小区信息。比如，该形式下，卫星可以包括DU、基站或者IAB等类似功能的网络设备。再生形式下，卫星小区可以是地面固定的，也可以随着卫星的移动而移动。卫星小区是地面固定的，是指卫星小区在地面的覆盖是固定的。具体的，可以是一段时间内是固定的，也可以是永久固定的。卫星小区随着卫星的移动而移动，即当卫星移动时，其生成的小区也跟随在地面上移动。当卫星移动时，一种可能的实现方式是，其生成的小区也跟随在地面上移动。也即，卫星上的网络设备并不动态调整波束方向，卫星上的网络设备生成的波束随着卫星的移动，在地面上移动。
一般情况下，当卫星移走后，后续会有新的卫星移过来，以保证尽可能的连续覆盖。新的卫星和之前的卫星的覆盖区域可以相同，也可以不同。可以理解的，由于卫星的运行方向，波束发射方向，波束发射能力的不同，2个卫星的地面覆盖区域可能不一定完全相同。
针对上述第一种形式的卫星(即透明转发形式的卫星)，由于卫星是移动的，卫星通过转发其连接的地面基站的信号到地面，形成相应的小区。根据卫星连接的地面基站的不 同，卫星发送的信号也不同，因此存在卫星转发的小区信号发生跳变的情况。其中，跳变有两种，下面分别说明。
跳变方式1，一个卫星可以同时连接多个(多于一个)地面基站。当卫星从连接基站1跳变为连接基站2时，卫星同时发送基站1和基站2的小区信号一段时间，但是在某一时刻卫星不再转发基站1的小区信号，即原覆盖区域上基站1的小区信号突然消失。本申请实施例中，可以称基站1的小区为“跳变小区”。
跳变方式2，一个卫星一次只连接一个地面基站。当卫星从基站1跳变为连接基站2时，卫星连接到基站2后，立即转发基站2的小区信号，断开和基站1的连接从而不再转发基站1的小区信号，即卫星的原覆盖区域上基站1的小区信号突然消失，基站2的小区信号突然出现。本申请实施例中，可以称基站1的小区为“跳变小区”。
“跳变小区”可以理解为小区是动态存在的，即在某一个时刻后，或者某一段时间该小区的信号在某一区域不存在或者消失。可选的，该小区的原覆盖区域可以由新的小区提供通信。
本申请实施例以NTN系统为例，可以理解的，本申请实施例也适用TN系统。比如TN系统中，基于节能或者其它原因，在某一时刻，或者某一段时间关闭某一小区，则该被关闭的小区也可以认为是“跳变小区”。
无论卫星的小区信息如何跳变，可能存在部分区域对应的小区信息可以不发生变化。如图2A所示，为卫星下的小区跳变的一个示例图。该示例以卫星1和卫星2仅支持转发一个基站的小区信号为例。在图中，以卫星从左向右移动为例。
T1时刻：卫星1和基站1连接，转发基站1的小区1的信号；卫星2和基站2连接，转发基站2的小区2的信号；卫星3和基站3连接，转发基站3的小区3的信号。
T2时刻(即将发生小区跳变前的某个时刻)：卫星1和基站1连接，转发基站1的小区1的信号；卫星2和基站2连接，转发基站2的小区2的信号；卫星3和基站3连接，转发基站3的小区3的信号。
T2时刻相较于T1时刻，小区随着卫星的移动而发生移动，但还未发生小区跳变。
随着卫星向右移动，卫星1会断开和基站1的连接，跳变为和基站2连接，卫星2会断开和基站2的连接，跳变为和基站3连接。
T3时刻(发生小区跳变的时刻或发生跳变后的某个时刻)：卫星0和基站1连接，转发基站1的小区1的信号；卫星1和基站2连接，转发基站2的小区2的信号；卫星2和基站3连接，转发基站3的小区3的信号。
从图2A中可以看出，跳变前由小区1和小区2的覆盖区域，在跳变后，跳变为由小区2和小区3覆盖。也即，卫星1从连接基站1并转发基站1的小区1的信号，跳变为连接基站2并转发基站2的小区2的信号，卫星2从连接基站2并转发基站2的小区2的信号，跳变为连接基站3并转发基站3的小区3的信号。
并且，当跳变前(比如T2时刻)的小区1和小区2之间存在重叠覆盖区域时，该区域在跳变前后始终存在小区2的信号。比如，参考图2A，在T2时刻，UE1处于小区1和小区2的重叠覆盖区域，该区域内同时存在小区1和小区2的信号。在T3时刻，由于卫星发生移动，假设UE1未移动或者未移出上述重叠覆盖区域，则UE1将处于小区2和小区3的重叠覆盖区域，该区域内同时存在小区2和小区3的信号。因此，可以看出，该重叠覆盖区域在跳变前后始终存在小区2的信号。对于处于重叠覆盖区域的UE(比如图2A 的UE1)，如果执行重选到跳变后的小区3，随着卫星继续移动，需要再次从小区3重选回之前的小区2。如此，将造成UE频繁更换驻留小区，增加了UE能耗。
综上所述，针对小区跳变的应用场景，UE如何执行小区重选，是本申请实施例要解决的问题。
如图3所示，本申请实施例提供一种小区重选方法。该方法可应用于小区跳变场景。在UE侧，该方法可以由UE、或用于UE的部件(例如芯片或者电路等)执行。在网络侧，该方法可以由网络设备(可以是RAN设备或DU或CU)、或用于网络设备的部件(例如芯片或者电路等)执行。为便于说明，下面以UE和网络设备执行该方法为例进行说明。
该方法包括以下步骤：
步骤301，网络设备向UE发送重选配置信息。
相应地，UE可以接收到该重选配置信息。
当网络设备部署在卫星，以透明转发形式为例，网络设备可以从TN的基站接收该重选配置信息并转发给UE。
该重选配置信息包括用于重选的配置信息。该重选配置信息可以包括重选触发信息、重选目标信息的至少一种。可选的，该重选配置信息还可以包括重选时间范围信息。
可选的，重选配置信息可以通过系统消息、寻呼消息、组播消息、单播消息、短消息、下行控制信息的任一种携带。其中，重选触发信息用于触发UE执行测量以进行小区重选。也即，当满足重选触发信息时，无论UE的服务小区的质量是否满足重选条件，UE都执行测量以进行小区重选。重选触发信息可以包括重选触发时间信息，或重选触发指示信息。
重选触发时间信息用于指示UE当重选触发时间到达时UE立即执行测量以进行小区重选流程。其中，上述“重选触发时间信息”可以通过多种方式进行表达，例如，该重选触发时间信息可以是绝对时间(如通用协调时间(universal time coordinated，UTC)、全球定位系统(global positioning system，GPS)时钟、网络广播的系统帧号(SFN system frame number，SFN)等其它时间信息的至少一种)；和/或，该重选触发时间信息可以是相对时间(如GPS时钟计数偏移、以网络广播的SFN为参考的相对SFN偏移等其它时间信息的至少一种)。作为一种实现方式，当该重选触发时间信息包括绝对时间和相对时间时，UE可以根据上述绝对时间和相对时间确定重选触发时间。
重选触发指示信息用于指示UE立即执行测量以进行小区重选。重选触发指示信息也可以称为或重选触发命令、或重选触发指令。例如可以通过至少一位的比特信息触发UE立即执行测量以进行小区重选。作为一种实现方式，UE可以根据重选触发指示信息，立即根据服务小区的邻区的重选优先级配置信息执行测量。重选优先级配置信息比如可以包括频点信息、频点优先级信息、频点下的PCI信息中一项或多项。其中，服务小区的邻区包括同频邻区、异频邻区、异系统邻区中的一项或多项。重选优先级配置信息可以包括专用重选优先级配置信息和/或公共重选优先级配置信息。其中，通过专用信令发送的重选优先级配置信息可以称为专用重选优先级配置信息，通过系统消息发送的重选优先级配置信息可以称为公共重选优先级配置信息。可以理解的是，本申请实施例中，重选配置信息可以与重选优先级配置信息通过不同的消息或者通过不同的信令流程发送给UE，或者，重选配置信息也可以与重选优先级配置信息通过一条消息发送给UE。
可以理解的，上述的“UE执行测量”可以包括UE执行对本小区的测量、同频测量、异频测量、异系统测量的至少一种。或者，“UE执行测量”可以理解为UE执行小区重选的测 量。可选的，作为一种可能的方式，UE对服务小区的测量可以是周期性执行的。此外，“UE不执行测量”可以理解为UE不执行小区重选的测量。
其中，重选目标信息用于指示重选测量的目标小区的信息；或者，重选目标信息用于触发UE根据目标小区的信息执行测量以进行小区重选。该重选目标信息可以为目标小区的频点，或者为目标小区的频点和物理小区标识。可选的，重选目标信息还可以用于指示目标小区的优先级最高。可以理解的，当重选目标信息存在时，“UE执行测量”至少可以包括“UE根据目标小区的信息执行测量”。
其中，重选时间范围信息用于指示在该时间范围内，UE可以根据重选触发信息和/或重选目标信息进行测量以进行小区重选。重选时间范围信息可以包括时间长度，或者起始时间信息和时间长度，或者起始时间信息和终止时间信息，或者终止时间信息。在除重选时间范围信息之外的其它时间，UE可以忽视重选触发信息和/或重选目标信息，比如，UE可以根据上述描述的重选优先级配置信息执行测量以进行小区重选。也就是说，该重选时间范围信息限制了重选触发信息和/或重选目标信息的生效时间，在该重选时间范围信息指示的时间范围内，该重选触发信息和/或重选目标信息有效，而在该重选时间范围信息指示的时间范围之外，该重选触发信息和/或重选目标信息无效，例如，UE可以忽视重选触发信息和/或重选目标信息。一种可能的方式中，在该重选触发信息和/或重选目标信息无效的情况下，UE按照正常的流程或者规则执行测量以进行小区重选(也就是UE进行传统的小区重选流程)，该传统的小区重选流程例如参考TS38.304 v15.4.0或者TS36.304 v15.4.0中相应的章节。
步骤302，UE根据重选配置信息，执行测量以进行小区重选。
以重选配置信息至少包括重选目标信息(比如可以为目标小区的频点，或者为目标小区的频点和物理小区标识)为例，UE可以根据该重选目标信息对目标小区进行测量以执行小区重选。即，当该重选目标信息存在时，UE可以仅根据该重选目标信息执行测量，也即可以忽略重选优先级配置信息。若UE测量到重选目标信息指示的目标小区，或者UE测量到重选目标信息指示的目标小区且目标小区的质量满足第一质量条件，UE执行小区重选到目标小区。若UE无法测量到重选目标信息指示的目标小区，或者UE测量到重选目标信息指示的目标小区但目标小区的质量不满足第一质量条件，UE将无法执行小区重选到目标小区，该情形下，UE可以根据重选优先级配置信息执行小区重选，也就是说，该情形下，UE按照正常的流程或者规则执行测量以进行小区重选。
其中，本申请实施例中，小区(如上述目标小区)的质量包括接收信号码功率(received signal code powe，RSCP)、参考信号接收功率(reference signal receiving power，RSRP)、参考信号接收质量(reference signal receiving quality,RSRQ)、信噪比(Signal Noise Ratio，SNR)、信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)、参考信号强度指示(reference signal strength indication，RSSI)或其它信号质量中的至少一种。小区的质量可以是小区级的，波束级的，同步信号/物理广播信道块级的,空口技术(numerology)级的，切片(slicing)级的，或部分带宽(Bandwidth part,BWP)级的。下行信号质量可以通过测量下行同步信道、信道状态信息参考信号(Channel-State Information(CSI)reference signal，CSI-RS)、解调参考信号(Demodulation reference signal，DMRS)、小区参考信号(Cell-Specific Reference Signal，CRS)信号、同步信号(synchronization signal，SS)、同步信号/物理广播信道块(synchronization signal/physical broadcast channel block，SS/PBCH  Block)或者其它下行信号中的至少一种获得的。对应于小区的质量，小区的质量参考门限可以包括RSCP门限，RSRP门限，RSRQ门限，SNR门限，SINR门限，RSSI门限或其它质量门限中的至少一种。
波束可以理解为空间资源，可以指具有能量传输指向性的发送或接收预编码向量。并且，该发送或接收预编码向量能够通过索引信息进行标识，所述索引信息可以对应配置终端的资源标识(identity，ID)，比如，所述索引信息可以对应配置的CSI-RS的标识或者资源；也可以是对应配置的SSB的标识或者资源；也可以是对应配置的上行探测参考信号(Sounding Reference Signal，SRS)的标识或者资源。可选地，所述索引信息也可以是通过波束承载的信号或信道显示或隐式承载的索引信息。所述能量传输指向性可以指通过该预编码向量对所需发送的信号进行预编码处理，经过该预编码处理的信号具有一定的空间指向性，接收经过该预编码向量进行预编码处理后的信号具有较好的接收功率，如满足接收解调信噪比等；所述能量传输指向性也可以指通过该预编码向量接收来自不同空间位置发送的相同信号具有不同的接收功率。
或者，该重选目标信息还可以用于指示该目标小区的优先级最高或者质量排序最高或者质量最好。一种可能的实现方式中，当UE测量到该目标小区，则UE执行重选到该目标小区；或者UE认为该目标小区的质量最好，因而UE执行重选到该目标小区。也即，UE根据该重选目标信息，确定优先重选到该目标小区，因此当测量到该目标小区，则执行重选到该目标小区。
可以理解的，本申请实施例中“质量最好”的小区可以是候选小区中的ranking值最大或者排序最高的小区，或者可以是第二小区中的拥有最多好波束(good beam，比如波束质量超过某一门限的波束)数的小区，第二小区包括拥有最大ranking值的小区、以及包括其ranking值与最大ranking值的差值在一定范围内(如x dB，其中x是可配置的)的小区。其中，ranking值可以理解为根据小区的测量质量确定的质量结果。
以重选配置信息至少包括重选时间范围信息为例，UE可以根据重选时间范围信息启动定时器。比如，重选时间范围信息包括时间长度，则UE可以在收到重选配置信息后启动定时器，或者当重选触发时间到达后启动定时器，因此定时器的有效时间范围为：定时器启动时刻至定时器启动时刻+时间长度。再比如，重选时间范围信息包括起始时间信息和终止时间信息，则UE在起始时间信息指示的时刻启动定时器，在终止时间信息指示的时刻停止定时器，因此定时器的有效时间范围为：起始时间信息至终止时间信息。
以重选配置信息至少包括重选触发时间信息为例。当重选触发时间信息指示的时间到达后，UE立即执行测量以进行小区重选流程。
以重选配置信息至少包括重选触发时间信息和重选时间范围信息为例。该重选时间范围信息指示一个时间长度。当重选触发时间信息指示的时间到达后，UE启动定时器，且设定定时器的时间长度为重选时间范围信息指示的时间长度。UE在定时器启动时立即执行测量以进行小区重选流程，在定时器停止时，UE可以根据服务小区的质量确定是否执行测量以进行小区重选。
作为一种实现方式，在定时器运行时间内，UE可以根据重选配置信息进行小区重选。在定时器运行时间内，若UE重选到其它小区，UE可以停止定时器。若定时器超期，UE未重选到其它小区，可选的，UE可以根据上述描述的重选优先级配置信息执行小区重选。此时，可选的，UE可以删除上述重选配置信息。作为又一种实现方式，若重选配置信息 包含重选目标信息，UE可以在定时器运行时间内优先根据重选目标信息执行测量，若UE重选到重选目标信息指示的目标小区,UE停止定时器；若在定时器运行时间内UE无法重选到上述目标小区，UE可以根据上述描述的重选优先级配置信息执行测量。作为又一种实现方式，在定时器运行时间内，UE同时根据重选目标信息和上述描述的重选优先级配置信息执行小区重选。比如，当UE测量到多个重选的候选小区时，若包括了重选目标信息指示的目标小区，则UE执行重选到该目标小区；或者UE认为该目标小区的质量最好，因而UE执行重选到该目标小区；或者UE执行重选到质量最好的小区。作为又一种实现方式，在定时器运行时间内，UE仅根据重选目标信息指示的目标小区执行测量。若在定时器运行时间内，UE无法重选到该目标小区，当定时器超期后UE可以根据上述描述的重选优先级配置信息执行测量。作为又一种实现方式，若重选配置信息不包含重选目标信息，UE可以在定时器运行时间内根据上述描述的重选优先级配置信息执行测量以进行小区重选，即，无论UE的服务小区的质量是否满足重选条件，在定时器运行时间内，UE都根据上述描述的重选优先级配置信息执行测量。
作为一种实现方式，当UE执行小区重选到其它小区时，UE可以丢弃上述重选配置信息。
作为一个具体的实施方式，以重选配置信息包括重选触发时间信息、重选目标信息和重选时间范围信息为例，且以网络设备为透明转发形式的卫星上的网络设备为例进行描述。参考图2A，在T2时刻之前的某个时刻，基站2确定重选配置信息包括：
重选触发时间信息：T2；
重选目标信息：小区3所在的频点和小区3的PCI；
重选时间范围信息：时间段信息，以该时间段的长度为T2至T3为例。
基站2向小区2下的UE(包括UE1、UE2)发送上述重选配置信息。例如，基站2可以通过与其连接的卫星2上的网络设备向UE发送上述重选配置信息。UE1和UE2根据上述重选配置信息，进行与小区重选相关的操作。
以卫星2上的网络设备或基站2在T2时刻之前的任意时刻向UE发送上述重选配置信息为例。比如，当T2时刻到达，UE1和UE2在T2至T3的时间范围内仅根据重选目标信息测量到小区3的质量，且小区3的质量满足第一准则，则UE1和UE2重选到小区3。
再比如，由于信号遮挡或者其它原因，在T2至T3的时间段内，UE1没有测量到小区3的质量，则UE1在T2至T3的时间段内可以根据重选优先级配置信息执行测量，以及，在T2至T3的时间段之外也可以根据重选优先级配置信息执行测量。一种可能的实施方式中，UE1根据重选优先级配置信息执行测量可以是按照现有技术中的小区重选机制(比如，可以参考3GPP TS38.304 v15.4.0中的相关描述)确定重选的目标小区。比如UE1测量到多个满足质量条件的小区，UE1可以根据频点优先级执行小区重选，比如尝试重选到频点优先级最高的小区中的质量最好的小区。这里的频点优先级是重选优先级配置信息的一个示例。
基于上述实施例，引入包括重选触发信息的重选配置信息，基于该重选配置信息，给出了小区跳变场景下UE执行小区重选的实现方法，有助于避免发生UE无法正常通信的情况。进一步的，当重选配置信息包括重选目标信息，还可以减少不必要的重选测量，节省UE能耗。当重选配置信息包括重选时间范围信息，可以减少重选测量的次数，从而进一步节省UE能耗。
如图4所示，本申请实施例提供又一种小区重选方法。该方法可应用于触发跳变的场景，或用于跳变发生后场景。在UE侧，该方法可以由UE、或用于UE的部件(例如芯片或者电路等)执行。在网络侧，该方法可以由网络设备(可以是RAN设备或DU或CU)、或用于网络设备的部件(例如芯片或者电路等)执行。为便于说明，下面以UE和网络设备执行该方法为例进行说明。
该方法包括以下步骤：
步骤401，网络设备向UE发送重选配置信息和不重选配置信息。
相应地，UE可以接收到该重选配置信息和不重选配置信息。
其中，该重选配置信息包括重选触发信息、重选目标信息、重选时间范围信息中的至少一种。其中，关于重选触发信息、重选目标信息、重选时间范围信息的具体描述，可以参考图3对应的实施例的相关描述。当网络设备部署在卫星，以透明转发形式为例，网络设备可以从TN的基站接收该重选配置信息并转发给UE。
可以理解的，重选配置信息和不重选配信息可以携带在同一消息中，也可以携带在不同的消息中。可选的，重选配置信息和不重选配置信息分别均可以通过系统消息、寻呼消息、组播消息、单播消息、短消息、下行控制信息的任一种携带。
重选配置信息的具体实现方式可以参考图3对应的实施例的描述，这里不再赘述。
不重选配置信息包括不重选条件信息、不重选区域信息中的至少一种。可选的，不重选配置信息还可以包括不重选时间范围信息。可以理解的是，不重选配置信息也可以称为重选配置去激活信息。
若UE确定其满足不重选配置信息，UE可以不根据重选配置信息执行测量，比如，UE可以继续驻留在当前的服务小区，即服务小区不变。
或者，若重选配置信息包括重选目标信息且不重选配置信息满足，UE可以不根据重选目标信息执行测量。可选的，UE可以根据前述描述的重选优先级配置信息执行测量以进行小区重选。
不重选条件信息用于指示UE在满足不重选条件信息时不根据重选配置信息执行测量。不重选条件信息可以包括测量目标小区的信息，或者包括测量目标小区的信息和质量门限。其中，测量目标小区的信息可以为频点、或为频点和物理小区标识、或为CGI。可以理解的，当不重选条件信息包括测量目标小区的信息时，“UE执行测量”至少可以包括“UE根据该测量目标小区的信息执行测量”。
不重选区域信息用于指示UE确定不需要根据重选配置信息执行测量的区域。不重选区域信息可以包括经度和/或纬度范围，或者其它区域范围信息。
不重选时间范围信息用于指示UE确定不需要根据重选配置信息执行测量的时间范围。即在该不重选时间范围信息指示的时间范围内，UE不根据重选配置信息执行测量。该不重选时间范围信息可以包括最晚的不根据重选配置信息执行测量的时间信息，或者，不根据重选配置信息执行测量的截止时间信息。最晚的不根据重选配置信息执行测量的时间信息或者不根据重选配置信息执行测量的截止时间信息可以为重选触发时间信息，或者重选触发时间信息后的某一时刻。或者，不重选时间范围信息确定的最晚时间为重选时间范围信息确定的终止时间，或者为重选时间范围信息确定的终止时间后的某一时刻。或者，作为又一种可能的实现方式，不重选时间范围信息即为图3对应的实施例中的重选时间范围 信息。具体参考图3对应的实施例中的描述，这里不再赘述。作为一种可能的实现方式，也可以预定义不重选时间范围信息为重选触发时间信息，也即不重选时间范围信息指示的时间范围与重选触发时间信息指示的时间范围相同。
步骤402，UE根据不重选配置信息，判断是否根据重选配置信息执行测量以进行小区重选。
作为一种实现方式，以不重选配置信息至少包括测量目标小区的信息，或者测量目标小区的信息和质量门限为例。其中，网络设备可以根据卫星的运行轨迹、相邻小区的信息确定不重选条件信息中的测量目标小区的信息。可选的，质量门限也可以是预定义的，即重选配置信息可以不携带质量门限。作为一个示例，参考图2A，网络设备向卫星2的小区2的UE发送不重选条件信息包括：小区1的频点和PCI，若UE确定可以测量到小区1，则UE不根据重选配置信息执行测量。比如UE1，在小区跳变前可以测量到小区1，则小区跳变后，UE不根据重选配置信息执行测量，即UE1仍然驻留在小区2，也即UE1的服务小区仍然为小区2。或者，若UE测量到的小区1的质量高于质量门限，则UE不执行重选。
作为又一种可能的实现方式，以不重选配置信息至少包括不重选区域信息为例。若UE可以确定其处于不重选区域，则UE不根据重选配置信息执行测量。其中，UE可以根据其定位能力确定的位置信息确定其处于不重选区域，也可以是根据从网络设备接收的位置信息确定其处于不重选区域。作为一个示例，参考图2A，网络设备向卫星2的小区2的UE发送不重选区域信息指示的经度和/或纬度范围包括图2A中的重叠覆盖区域A。UE1确定其处于该重叠覆盖区域A，则在发生小区跳变之后，确定不根据重选配置信息执行测量。
作为又一种可能的实现方式，以不重选配置信息至少包括不重选时间范围信息为例，UE可以根据不重选时间范围信息启动定时器。比如，不重选时间范围信息包括时间长度，则UE可以在收到不重选配置信息后，启动定时器，因此定时器的有效时间范围为：定时器启动时刻至定时器启动时刻+时间长度。再比如，不重选时间范围信息包括起始时间信息和终止时间信息，则UE在起始时间信息指示的时刻启动定时器，在终止时间信息指示的时刻停止定时器，因此定时器的有效时间范围为：起始时间信息至终止时间信息。再比如，不重选时间范围信息包括不根据重选配置信息执行测量的截止时间信息，则UE收到不重选配置信息后，启动定时器，因此定时器的有效时间范围为：定时器启动时刻至不根据重选配置信息执行测量的截止时间信息指示的时刻。在定时器运行时间内，UE可以不根据重选配置信息执行测量。可选的，在定时器运行时间内，UE可以不执行测量；可以理解的，这里的“测量”为除对本小区的测量之外的测量。或者，在定时器运行时间内，UE仅不根据重选配置信息进行测量。可选的，UE可以根据上述描述的重选优先级配置信息执行测量以进行小区重选。
作为一个具体的实施例，以终端设备接收网络设备发送的重选配置信息和不重选配置信息为例，且以网络设备为基站透明转发形式的卫星为例，进行描述。比如，参考图2A，在T2时刻之前的某个时刻，基站2确定不重选配置信息和重选配置信息。
其中，不重选配置信息包括：
1)测量目标小区的信息：小区1所在的频点和小区1的PCI；
2)质量门限：Q1；
3)不重选时间范围信息：截止时间信息为T3。
重选配置信息包括：
1)重选触发时间信息：T2；
2)重选目标信息：小区3所在的频点和小区3的PCI；
3)重选时间范围信息：T2至T3。
基站2向小区2下的UE(包括UE1、UE2)发送上述重选配置信息和不重选配置信息。例如，基站2可以通过与其连接的卫星2上的网络设备向UE发送上述重选配置信息和不重选配置信息。比如卫星2上的网络设备或基站2可以在T2时刻之前的任意时刻向UE发送上述重选配置信息和不重选配置信息。
UE1和UE2首先分别根据上述不重选配置信息，判断是否需要执行小区重选。
比如，UE1根据上述不重选配置信息，确定可以测量到小区1所在的频点和小区1的PCI，且小区1质量大于质量门限(Q1)，则UE1确定其满足不重选配置信息的条件，即在T2后不需要根据重选配置信息进行测量。因此，当T2时刻到达后，UE1保持驻留在小区2，虽然其连接的卫星从卫星2变为了卫星1，但是从UE1的角度，UE1依然驻留在小区2。因此，针对该UE1，UE1在T3时刻之前，或者T2到T3的时间范围内，将不会执行以下步骤403的小区重选的操作。或者，可选的，UE1在T3时刻之前，可以根据前述描述的重选优先级配置信息执行测量。
步骤403，UE根据重选配置信息，执行测量以进行小区重选。
该步骤可选。
针对某个UE，当上述步骤402确定该UE不满足不重选配置信息时，则执行该步骤403。
UE根据重选配置信息，执行测量以进行小区重选的实现方式可以参考前述图3对应的实施例的步骤302的描述，这里不再赘述。
可选，作为另一种实现方法，针对某个UE，当上述步骤402确定该UE不满足不重选配置信息时，UE也可以根据重选配置信息和重选优先级配置信息执行测量，以进行小区重选。
基于上述实施例，通过引入不重选配置信息，避免了部分UE的不必要的小区重选，节省了UE的能耗。以及，通过引入重选配置信息，使得卫星场景下的UE执行小区重选，减少了不必要的重选测量，进一步节省UE能耗。
如图5所示，本申请实施例提供又一种小区重选方法。该方法可应用于触发跳变的场景，或用于跳变发生后场景。在UE侧，该方法可以由UE、或用于UE的部件(例如芯片或者电路等)执行。在网络侧，该方法可以由网络设备(可以是RAN设备或DU或CU)、或用于网络设备的部件(例如芯片或者电路等)执行。为便于说明，下面以UE和网络设备执行该方法为例进行说明。
该方法包括以下步骤：
步骤501，网络设备向UE发送不重选配置信息。
相应地，UE可以接收到不重选配置信息。
步骤502，UE根据不重选配置信息，判断是否执行测量以进行小区重选。
当UE满足不重选配置信息，则UE确定不执行测量以进行小区重选。
当UE不满足不重选配置信息，则UE确定执行测量以进行小区重选。可选的，可以 根据重选优先级配置信息执行测量以进行小区重选。对于UE根据重选优先级配置信息执行测量以进行小区重选的具体实现方法，可以参考图4对应的实施例的相关描述，不再赘述。
需要说明的是，图4对应的实施例中的不重选配置信息携带内容的各种不同实现方式，可以参考图4对应的实施例中的不重选配置信息的相应实现方式，这里不再赘述。也即，图5对应的实施例中的不重选配置信息可以与图4对应的实施例中的不重选配置信息相同，从而图5对应的实施例中判断是否满足不重选配置信息的各种不同实现方式，可以参考图4对应的实施例的相应描述。
图4对应的实施例与图5对应的实施例的主要区别是：图4对应的实施例中，当UE满足不重选配置信息，则UE确定不根据重选配置信息执行测量以进行小区重选，而是可以根据重选优先级配置信息执行测量以进行小区重选或者不执行重选。当UE不满足不重选配置信息，则UE确定根据重选配置信息执行测量以进行小区重选，或者根据重选配置信息和重选优先级配置信息执行测量以进行小区重选。而在图5对应的实施例中，当UE满足不重选配置信息，则UE确定不执行测量以进行小区重选。当UE不满足不重选配置信息，则UE确定执行测量以进行小区重选，比如可以根据重选优先级配置信息执行测量以进行小区重选。基于上述实施例，通过引入不重选配置信息，避免了部分UE的不必要的小区重选，节省了UE的能耗。可选的，通过引入重选优先级配置信息，使得卫星场景下的UE执行小区重选，减少了不必要的重选测量，进一步节省UE能耗。
如图6所示，本申请实施例提供又一种小区重选方法。该方法可应用于发生小区跳变前的场景。在UE侧，该方法可以由UE、或用于UE的部件(例如芯片或者电路等)执行。在网络侧，该方法可以由网络设备(可以是RAN设备或DU或CU)、或用于网络设备的部件(例如芯片或者电路等)执行。为便于说明，下面以UE和网络设备执行该方法为例进行说明。
该方法包括以下步骤：
步骤601，网络设备向UE发送小区重选指示信息。
相应的，UE可以接收到该小区重选指示信息。
小区重选指示信息用于指示UE立即进行小区重选，或用于指示UE立即执行测量以进行小区重选，或用于指示UE将当前服务小区的频点的优先级设置为最低，或用于指示UE将当前服务小区的优先级设置为最低，或用于指示UE的当前服务小区会发生跳变，或用于指示当前服务小区为跳变小区。
例如，作为一种UE确定某一小区是否为“跳变小区”的实现方式是，当网络设备向UE发送小区重选指示信息，用于指示该小区为“跳变小区”；当网络设备未向UE发送小区重选指示信息，则该小区为“非跳变小区”。或者，网络设备向UE发送小区重选指示信息，该小区重选指示信息的不同取值指示该小区为“跳变小区”或者“非跳变小区”。
小区重选指示信息可以通过组播消息、单播消息、下行控制信息、短消息、寻呼消息、或系统消息携带。
步骤602，UE确定重选并驻留到目标小区，所述目标小区为测量到的小区质量满足第一准则的候选小区中的非跳变小区、且所述目标小区为合适小区(suitable cell)。
UE确定某个小区是否为跳变小区的方法比如可以是：UE读取小区发送的系统消息， 若该小区发送的系统消息中携带有小区重选指示信息(或者，携带的小区重选指示信息指示该小区为跳变小区)，表明该小区是跳变小区。该小区重选指示信息与上述步骤601的小区重选指示信息的实现方式及作用类似，不再赘述。
其中，UE判断某个小区是否为合适小区的方法，比如可以是：UE根据UE是否为该小区所属的网络标识的签约用户以及该小区的状态是否为“接入限制”或“接入禁止”判断某个小区是否为合适小区的方法。作为一种可能的实现方式，首先，UE根据该小区发送的系统消息确定UE为该小区所属的网络标识的签约用户；其次，UE根据该小区发送的系统消息确定该小区的状态不为“接入限制”或“接入禁止”，则UE可以确定该小区为合适小区；若UE根据该小区发送的系统消息确定该小区的状态是“接入限制”或“接入禁止”，则UE可以确定该小区不是合适小区。
作为一个示例，下面给出上述步骤602中UE从候选小区中确定目标小区一种实现方式，包括以下步骤A至步骤C的部分或全部步骤。
步骤A，UE确定小区质量满足第一准则的候选小区的中的第一小区。
其中，第一小区指的是上述候选小区中的质量最好的小区。“质量最好”的小区可以是候选小区中的ranking值最大的小区，或者还可以是第二小区中的拥有最多好波束(good beam，比如波束质量超过某一门限的波束)数的小区，第二小区包括候选小区中的拥有最大ranking值的小区、以及包括其ranking值与最大ranking值的差值在一定范围内(如x dB，其中x是可配置的)的小区。
可选的，上述候选小区中不包括该UE的当前服务小区。
可选的，若上述候选小区中包括当前服务小区，则UE根据小区重选指示信息将当前服务小区的优先级设置为最低，或者理解为，当前服务小区的ranking值排序在最后。
步骤B，UE尝试执行对第一小区的重选。
UE尝试执行对第一小区的重选，可以理解为，尝试重选至该第一小区，但重选的结果可能是成功、也可能是失败。
其中，UE执行对第一小区的重选的过程，比如可以是：
1)若第一小区不是跳变小区、或不是合适小区，则确定不重选到该第一小区，即重选失败，进而转到执行步骤C。
2)若第一小区是非跳变小区、且是合适小区，则UE可以重选并驻留到该第一小区，即重选成功，流程结束。此时该第一小区可以称为目标小区。
步骤C，UE将该第一小区的ranking排序设置为最低，或者该将该第一小区的优先级最低。
也即，该步骤C中，是将候选小区的排序中，原来排序最前的第一小区，移动至排序的最后位置。
作为另一种实现方法，该步骤C中，UE也可以将候选小区的排序中，原来排序最前的第一小区，移动至排序的中间位置，也即移动至第一位与最后一位之间的某个位置。
该步骤C之后，上述候选小区中的小区的ranking排序发生变化，然后，转到上述步骤A。即根据最新的ranking排序结果，继续执行选择第一小区的操作，直至成功重选至候选小区中的某个小区，或者是在候选小区中的所有小区都不能重选成功。
可选的，若候选小区中的所有小区都不能重选成功，则UE可以驻留在当前服务小区。
作为一种实现方式，在上述步骤C中，UE又可以将候选小区中的当前第一小区，或 者，将候选小区中的当前第一小区以及与当前第一小区处于同一频点的其它小区(可以称为第三小区)排除在候选小区之外。或者UE可以在一段时间内将候选小区中的当前第一小区，或者，将候选小区中的当前第一小区以及第三小区排除在候选小区之外(比如，最大可以300s)，即在该时间段内，当前第一小区，或者当前第一小区以及第三小区不参与后续步骤的第一小区的选择，也即在该段时间内，UE不选择当前第一小区，或者当前第一小区和第三小区中的任一小区作为下一轮选择中的第一小区。
下面结合两个示例进行说明。
示例1
结合图2A，作为一个示例，在T2时刻之前的任意时刻，UE1接收到服务小区(即小区2)通过卫星2发送的小区重选指示信息，UE1根据该小区重选指示信息确定小区2会发生跳变，从而触发UE1执行小区重选流程。比如UE1测量到小区1和小区2，UE1对小区1和小区2进行Ranking排序，并将小区2的Ranking排序设置为最低，从而得到的排序结果为：小区1>小区2。
然后UE1读取小区1(此时小区1可以称为第一小区)发送的系统消息，由于小区1是跳变小区，因此会在系统消息中携带小区重选指示信息，UE1通过读取小区1的系统消息，确定小区1是跳变小区。因此UE1确定驻留在当前服务小区，即小区2。即，若UE确定测量到的所有小区(即小区1、小区2)都是跳变小区，UE确定驻留在当前服务小区。
示例2
结合图2B，作为又一个示例，在T2时刻之前的任意时刻，UE1接收到服务小区(即小区2)通过卫星2发送的小区重选指示信息，UE1根该小区重选指示信息确定小区2会发生跳变，从而触发UE1执行小区重选流程。比如UE1测量到小区1、小区2和小区5，UE1对小区1、小区2和小区5进行Ranking排序，并将小区2的Ranking排序设置为最低，比如得到的排序结果为：小区1>小区5>小区2。
然后UE1读取小区1(此时小区1可以称为第一小区)发送的系统消息，假设小区1是跳变小区，因此会在系统消息中携带小区重选指示信息，UE1通过读取小区1的系统消息，确定小区1是跳变小区。此时，不管小区1是否为合适小区，UE1都会将小区1的Ranking排序设置为最低，或者理解为，由于小区1是跳变小区，无需再确认小区1是否为合适小区，UE1都会将小区1的Ranking排序设置为最低，得到新的排序结果为：小区5>小区2>小区1。
然后，UE1读取小区5(此时小区5可以称为第一小区)的系统消息，比如小区5的系统消息中没有携带小区重选指示信息(也即小区5是非跳变小区)，且小区5状态不为“接入限制”或“接入禁止”(也即小区5是合适小区)，从而UE1确定驻留到小区5。
基于上述实施例，在小区发生跳变前，网络设备指示UE重选到其它非跳变小区或驻留在当前服务小区，有助于避免小区跳变对UE的业务影响，保证了UE的业务体验。并且，有助于避免不必要的重选而造成的UE能耗增加。
需要说明的是，本申请实施例是以NTN系统为例进行说明的。本申请实施例也可以适用TN系统，对此本申请实施例不做限定。
可以理解的，本申请实施例中，终端设备和/或网络设备可以执行本申请实施例中的部分或全部步骤，这些步骤或操作仅是示例，本申请实施例还可以执行其它操作或者各种操 作的变形。此外，各个步骤可以按照本申请实施例呈现的不同的顺序来执行，并且有可能并非要执行本申请实施例中的全部操作。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
需要说明的是，上述图3对应的实施例至图6对应的实施例，相互之间是可以相结合实施的。比如，可以先执行图6对应的实施例，若UE执行图6对应的实施例之后没有完成小区重选，也即UE测量到的小区均为跳变小区，因此UE停留在当前服务小区。此时，可以再执行上述图3对应的实施例，或图4对应的实施例，或图5对应的实施例，UE再确定是否尝试执行小区测量以进行小区重选。再比如，可以先执行图4对应的实施例，或图5对应的实施例，若在图4或图5对应的实施例中UE根据重选优先级配置信息执行测量，则可以结合图6对应的实施例进行实施，也即UE根据重选优先级配置信息执行测量，若测量的候选小区中存在目标小区(即质量最好的非跳变小区)，则尝试重选至该目标小区。
需要说明的是，本申请实施例中，当网络设备包括CU和DU时，CU可以向DU发送上述任意实施例中的任意信息。比如以不重选配置信息和/或重选配置信息和/或小区重选指示信息通过系统消息发送为例，CU发送上述至少一种信息给DU，通过DU发送给终端设备。
或者，当网络设备包括CU和DU时，DU可以向CU发送不重选配置信息和/或重选配置信息和/或小区重选指示信息和/或跳变指示信息，该跳变指示信息用于CU确定DU下的小区会发生跳变。可选的，DU还可以向CU发送DU下的小区的信息。这里的小区的信息可以包括小区标识、小区频点、物理小区标识、小区全局标识的至少一种。比如，可以通过接口建立请求消息、接口建立响应消息、配置更新消息、配置更新确认消息的至少一种发送上述任意信息。以DU向CU发送不重选配置信息、重选配置信息、小区重选指示信息的至少一种为例，CU可以根据从DU接收的上述信息对系统消息或系统消息块进行编码，或者CU可以根据从DU接收的上述信息确定切换目标，使得CU可以及时将UE切换到其它网络设备。可选的，CU将UE切换到其它网络设备时，还可以指示切换原因为“卫星移动”或“小区跳变”。以DU向CU发送跳变指示信息和DU下的第一小区的信息为例，CU可以确定第一小区会发生跳变，因此CU会配置第一小区下的UE执行测量或者切换，保证第一小区下的UE的业务体验。
可选的，上述任意实施例中的网络设备(以下称为第一网络设备)也可以向其他网络设备(以下称为第二网络设备)(直接(通过基站和基站间的接口，比如X2，Xn接口)或间接(通过基站和核心网设备的接口，比如S1或NG接口)发送不重选配置信息和/或重选配置信息和/或小区重选指示信息和/或跳变指示信息。可选的，第一网络设备还可以向第二网络设备发送第一网络设备下的第一小区的信息。比如可以通过如下消息的至少一种发送上述信息：X2/Xn接口建立请求消息、X2/Xn接口建立响应消息、节点配置更新消息、节点配置更新确认消息、切换请求(handover request或者handover required)消息、切换请求确认消息、切换命令消息。通过上述交互机制，使得第二网络设备可以确定上述第一网络设备下的第一小区会发生跳变，从而使得第二网络设备可以确实是否避免第二网络设备下的UE重选或切换到第一网络设备。
可以理解的，本申请实施例中，终端设备和/或网络设备可以执行本申请实施例中的部分或全部步骤，这些步骤或操作仅是示例，本申请实施例还可以执行其它操作或者各种操作的变形。此外，各个步骤可以按照本申请实施例呈现的不同的顺序来执行，并且有可能并非要执行本申请实施例中的全部操作。在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
可以理解的是，上述方法实施例中，由终端设备实现的方法，也可以由可用于终端设备的部件(例如芯片或者电路)实现，由网络设备实现的方法，也可以由可用于网络设备的部件(例如芯片或者电路)实现，本申请实施例对此不作限定。
图7示出了本申请实施例中所涉及的通信装置的可能的示例性框图，该通信装置700可以以软件或者硬件的形式存在。通信装置700可以包括：接收单元710和重选单元720。接收单元710用于支持通信装置700与其他网络实体或者通信装置700中其他模块的通信。可选的，通信装置700还可以包括存储单元，该存储单元可以用于存储指令和/或数据，该重选单元720可以读取存储单元中的指令和/或数据，以使得通信装置700实现相应的方法。
一种可能的方式中，当重选单元720集成在一个处理单元时，该处理单元可以是处理器或控制器，例如可以是通用中央处理器(central processing unit，CPU)，通用处理器，数字信号处理(digital signal processing，DSP)，专用集成电路(application specific integrated circuits，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、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请实施例公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包括一个或多个微处理器组合，DSP和微处理器的组合等等。接收单元710可以是通信接口、接收器或接收电路等，其中，该通信接口是统称，在具体实现中，该通信接口可以包括至少一个接口。
该通信装置700可以为用于执行图3和/或图4和/或图5和/或图6对应的实施例的终端设备，还可以为用于执行图3和/或图4和/或图5和/或图6对应的实施例中对应终端设备的步骤的芯片。例如，当重选单元720集成在一个处理单元时，该处理单元例如可以是处理器，接收单元710例如可以是接收器，该接收器包括射频电路。又例如，当重选单元720集成在一个处理单元时，该处理单元例如可以是处理器，该接收单元710例如可以是输入接口、管脚或电路等。
在一个实施例中：
接收单元710，用于从网络设备接收重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选时间信息或重选触发指示信息；重选单元720，用于根据所述重选配置信息，执行测量以进行小区重选。
在一些可能的实现方法中，所述重选触发信息包括重选触发时间信息；重选单元720，具体用于在所述重选触发时间信息指示的时间到达的时刻，启动执行测量以进行小区重选。
在一些可能的实现方法中，所述重选触发信息包括重选触发指示信息；重选单元720，具体用于在获取到所述重选触发指示信息的时刻，启动执行测量以进行小区重选。
在一些可能的实现方法中，所述重选配置信息还包括重选目标信息，所述重选目标信息用于指示重选测量的目标小区的信息；重选单元720，具体用于根据所述重选触发信息， 确定执行测量；若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
在一些可能的实现方法中，所述重选配置信息还包括重选时间范围信息；重选单元720，用于若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区，包括：用于若在所述重选时间范围信息指示的时间范围内测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
在又一个实施例中：
接收单元710，用于从网络设备接收不重选配置信息和重选配置信息；重选单元720，用于根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选。
在一些可能的实现方法中，所述不重选配置信息包括不重选条件信息，所述不重选条件信息包括测量目标小区的信息；重选单元720，具体用于若测量到所述测量目标小区，确定不根据所述重选配置信息执行测量以进行小区重选。
在一些可能的实现方法中，所述不重选条件信息还包括质量门限；重选单元720，具体用于若测量到所述测量目标小区、且所述测量目标小区的质量高于所述质量门限，确定不根据所述重选配置信息执行测量以进行小区重选。
在一些可能的实现方法中，所述不重选配置信息包括不重选区域信息；重选单元720，具体用于若所述终端设备位于所述不重选区域信息指示的区域，确定不根据所述重选配置信息执行测量以进行小区重选。
在一些可能的实现方法中，所述不重选配置信息包括不重选时间范围信息；重选单元720，具体用于确定在所述不重选时间范围内，不根据所述重选配置信息执行小区测量以进行重选。
在一些可能的实现方法中，重选单元720，还用于在确定不根据所述重选配置信息执行测量以进行小区重选后，不执行测量以进行小区重选。
在一些可能的实现方法中，重选单元720，还用于在确定不根据所述重选配置信息执行测量以进行小区重选后，根据服务小区的邻区的重选优先级配置信息执行测量以进行小区重选，所述重选优先级配置信息包括专用重选优先级配置信息和/或公共重选优先级配置信息。
在一些可能的实现方法中，重选单元720，还用于在确定根据所述重选配置信息执行测量以进行小区重选后，根据所述重选配置信息，执行测量以进行小区重选。
在一些可能的实现方法中，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选触发时间信息、或重选触发指示信息。
在一些可能的实现方法中，所述重选触发信息包括重选触发时间信息；重选单元720，用于根据所述重选配置信息，执行测量以进行小区重选，包括：用于在所述重选触发时间信息指示的时间到达的时刻，启动执行测量以进行小区重选。
在一些可能的实现方法中，所述重选触发信息包括重选触发指示信息；重选单元720，用于所述根据所述重选配置信息，执行测量以进行小区重选，包括：用于在获取到所述重选触发指示信息的时刻，启动执行测量以进行小区重选。
在一些可能的实现方法中，所述重选配置信息还包括重选目标信息，所述重选目标信 息用于指示重选触发后测量的目标小区的信息；
重选单元720，用于根据所述重选配置信息，执行测量以进行小区重选，包括：用于根据所述重选触发信息，确定执行测量；若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
在一些可能的实现方法中，所述重选配置信息还包括重选时间范围信息；重选单元720，用于若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区，包括：用于若在所述重选时间范围信息指示的时间范围内测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
在又一个实施例中：
接收单元710，用于从网络设备接收服务小区的小区重选指示信息，所述小区重选指示信息用于指示所述服务小区为跳变小区；
重选单元720，用于根据所述小区重选指示信息，执行小区测量，并测量得到满足第一准则的至少一个候选小区；确定重选并驻留到目标小区，所述目标小区为所述至少一个候选小区中的非跳变小区、且所述目标小区为合适小区。
在一些可能的实现方法中，所述小区重选指示信息携带于短消息、寻呼消息、或系统消息中。
图7所示的装置为执行小区重选的方法的具体有益效果，可参考前述图3、图4、图5、图6所示的方法实施例中的相关描述，这里不再赘述。可以理解的是，本申请实施例中的单元也可以称为模块。上述单元或者模块可以独立存在，也可以集成在一起。
图8示出了本申请实施例中所涉及的通信装置的可能的示例性框图，该通信装置800可以以软件或者硬件的形式存在。通信装置800可以包括：确定单元810和发送单元820。发送单元820用于支持通信装置800与其他网络实体或者通信装置800中其他模块的通信。可选的，通信装置800还可以包括存储单元，该存储单元可以用于存储指令和/或数据，该确定单元810可以读取存储单元中的指令和/或数据，以使得通信装置800实现相应的方法。
一种可能的方式中，当确定单元810集成在一个处理单元时，该处理单元可以是处理器或控制器，例如可以是CPU，通用处理器，DSP，ASIC，FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请实施例公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包括一个或多个微处理器组合，DSP和微处理器的组合等等。发送单元820可以是通信接口、发射器或发射电路等，其中，该通信接口是统称，在具体实现中，该通信接口可以包括至少一个接口。
该通信装置800可以为用于执行图3和/或图4和/或图5和/或图6对应的实施例的网络设备，还可以为用于执行图3和/或图4和/或图5和/或图6对应的实施例中对应网络设备的步骤的芯片。例如，当确定单元810集成在一个处理单元时，该处理单元例如可以是处理器，发送单元820例如可以是发射器，该发射器包括射频电路。又例如，当确定单元810集成在一个处理单元时，该处理单元例如可以是处理器，该发送单元820例如可以是输出接口、管脚或电路等。
在一个实施例中：
确定单元810，用于确定重选配置信息，所述重选配置信息包括重选触发信息、重选目标信息、重选时间范围信息中的一种或多种，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选触发时间信息或重选触发指示信息，所述重选目标信息用于指示重选测量的目标小区的信息，所述重选时间范围信息用于指示测量所述目标小区的时间范围。发送单元820，用于向终端设备发送所述重选配置信息，所述重选配置信息用于所述终端设备执行测量以进行小区重选。
在一些可能的实现方法中，发送单元820，还用于向终端设备发送不重选配置信息，所述不重选配置信息用于所述终端设备判断是否根据所述重选配置信息执行测量以进行小区重选，所述不重选配置信息包括不重选条件信息、质量门限、不重选区域信息、不重选时间范围信息中的一种或多种，所述不重选条件信息包括测量目标小区的信息。
图8所示的装置执行小区重选的方法的具体有益效果，可参考前述图3、图4、图5、图6所示的方法实施例中的相关描述，这里不再赘述。可以理解的是，本申请实施例中的单元也可以称为模块。上述单元或者模块可以独立存在，也可以集成在一起。
参考图9，其为本申请实施例提供的一种终端设备的结构示意图。该终端设备用于实现以上实施例中终端设备的操作。如图9所示，该终端设备包括：天线910、射频装置920、信号处理部分930。天线910与射频装置920连接。在下行方向上，射频装置920通过天线910接收网络设备发送的信息，将网络设备发送的信息发送给信号处理部分930进行处理。在上行方向上，信号处理部分930对终端设备的信息进行处理，并发送给射频装置920，射频装置920对终端设备的信息进行处理后经过天线910发送给网络设备。
信号处理部分930用于实现对数据各通信协议层的处理。信号处理部分930可以为该终端设备的一个子系统，则该终端设备还可以包括其它子系统，例如中央处理子系统，用于实现对终端设备操作系统以及应用层的处理；再如，周边子系统用于实现与其它设备的连接。信号处理部分930可以为单独设置的芯片。可选的，以上的装置可以位于信号处理部分930。
信号处理部分930可以包括一个或多个处理元件931，例如，包括一个主控CPU和其它集成电路，以及包括接口电路933。此外，该信号处理部分930还可以包括存储元件932。存储元件932用于存储数据和程序，用于执行以上方法中终端设备所执行的方法的程序可能存储，也可能不存储于该存储元件932中，例如，存储于信号处理部分930之外的存储器中，使用时信号处理部分930加载该程序到缓存中进行使用。接口电路933用于与装置通信。以上装置可以位于信号处理部分930，该信号处理部分930可以通过芯片实现，该芯片包括至少一个处理元件和接口电路，其中处理元件用于执行以上终端设备执行的任一种方法的各个步骤，接口电路用于与其它装置通信。在一种实现中，实现以上方法中各个步骤的单元可以通过处理元件调度程序的形式实现，例如该装置包括处理元件和存储元件，处理元件调用存储元件存储的程序，以执行以上方法实施例中终端设备执行的方法。存储元件可以为处理元件处于同一芯片上的存储元件，即片内存储元件。
在另一种实现中，用于执行以上方法中终端设备所执行的方法的程序可以在与处理元件处于不同芯片上的存储元件，即片外存储元件。此时，处理元件从片外存储元件调用或加载程序于片内存储元件上，以调用并执行以上方法实施例中终端设备执行的方法。
在又一种实现中，终端设备实现以上方法中各个步骤的单元可以是被配置成一个或多 个处理元件，这些处理元件设置于信号处理部分930上，这里的处理元件可以为集成电路，例如：一个或多个ASIC，或，一个或多个DSP，或，一个或者多个FPGA，或者这些类集成电路的组合。这些集成电路可以集成在一起，构成芯片。
实现以上方法中各个步骤的单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现，该SOC芯片，用于实现以上方法。该芯片内可以集成至少一个处理元件和存储元件，由处理元件调用存储元件的存储的程序的形式实现以上终端设备执行的方法；或者，该芯片内可以集成至少一个集成电路，用于实现以上终端设备执行的方法；或者，可以结合以上实现方式，部分单元的功能通过处理元件调用程序的形式实现，部分单元的功能通过集成电路的形式实现。
可见，以上装置可以包括至少一个处理元件和接口电路，其中至少一个处理元件用于执行以上方法实施例所提供的任一种终端设备执行的方法。处理元件可以以第一种方式：即调用存储元件存储的程序的方式执行终端设备执行的部分或全部步骤；也可以以第二种方式：即通过处理器元件中的硬件的集成逻辑电路结合指令的方式执行终端设备执行的部分或全部步骤；当然，也可以结合第一种方式和第二种方式执行终端设备执行的部分或全部步骤。
这里的处理元件同以上描述，可以是通用处理器，例如CPU，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。存储元件可以是一个存储器，也可以是多个存储元件的统称。
图9所示的终端设备执行小区重选的方法的具体有益效果，可参考前述图3、图4、图5、图6所示的方法实施例中的相关描述，这里不再赘述。可以理解的是，本申请实施例中的单元也可以称为模块。上述单元或者模块可以独立存在，也可以集成在一起。
参考图10，为本申请实施例提供的一种网络设备的结构示意图。该网络设备用于实现以上实施例中网络设备的操作。如图10所示，该网络设备包括：天线1010、射频装置1020、基带装置1030。天线1010与射频装置1020连接。在上行方向上，射频装置1020通过天线1010接收终端设备发送的信息，将终端设备发送的信息发送给基带装置1030进行处理。在下行方向上，基带装置1030对终端设备的信息进行处理，并发送给射频装置1020，射频装置1020对终端设备的信息进行处理后经过天线1010发送给终端设备。
基带装置1030可以包括一个或多个处理元件1031，例如，包括一个主控CPU和其它集成电路，以及还包括接口1033。此外，该基带装置1030还可以包括存储元件1032，存储元件1032用于存储程序和数据；接口1033用于与射频装置1020交互信息，该接口例如为通用公共无线接口(common public radio interface，CPRI)。以上用于网络设备的装置可以位于基带装置1030，例如，以上用于网络设备的装置可以为基带装置1030上的芯片，该芯片包括至少一个处理元件和接口电路，其中处理元件用于执行以上网络设备执行的任一种方法的各个步骤，接口电路用于与其它装置通信。在一种实现中，网络设备实现以上方法中各个步骤的单元可以通过处理元件调度程序的形式实现，例如用于网络设备的装置包括处理元件和存储元件，处理元件调用存储元件存储的程序，以执行以上方法实施例中网络设备执行的方法。存储元件可以为处理元件处于同一芯片上的存储元件，即片内存储元件，也可以为与处理元件处于不同芯片上的存储元件，即片外存储元件。
在另一种实现中，网络设备实现以上方法中各个步骤的单元可以是被配置成一个或多个处理元件，这些处理元件设置于基带装置上，这里的处理元件可以为集成电路，例如：一个或多个ASIC，或，一个或多个DSP，或，一个或者多个FPGA，或者这些类集成电路的组合。这些集成电路可以集成在一起，构成芯片。
网络设备实现以上方法中各个步骤的单元可以集成在一起，以SOC的形式实现，例如，基带装置包括该SOC芯片，用于实现以上方法。该芯片内可以集成至少一个处理元件和存储元件，由处理元件调用存储元件的存储的程序的形式实现以上网络设备执行的方法；或者，该芯片内可以集成至少一个集成电路，用于实现以上网络设备执行的方法；或者，可以结合以上实现方式，部分单元的功能通过处理元件调用程序的形式实现，部分单元的功能通过集成电路的形式实现。
可见，以上用于网络设备的装置可以包括至少一个处理元件和接口电路，其中至少一个处理元件用于执行以上方法实施例所提供的任一种网络设备执行的方法。处理元件可以以第一种方式：即调用存储元件存储的程序的方式执行网络设备执行的部分或全部步骤；也可以以第二种方式：即通过处理器元件中的硬件的集成逻辑电路结合指令的方式执行网络设备执行的部分或全部步骤；当然，也可以结合第一种方式和第二种方式执行以上网络设备执行的部分或全部步骤。
这里的处理元件同以上描述，可以是通用处理器，例如CPU，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。存储元件可以是一个存储器，也可以是多个存储元件的统称。
图10所示的网络设备执行小区重选的方法的具体有益效果，可参考前述图3、图4、图5、图6所示的方法实施例中的相关描述，这里不再赘述。可以理解的是，本申请实施例中的单元也可以称为模块。上述单元或者模块可以独立存在，也可以集成在一起。
本申请实施例还提供一种通信系统，该通信系统包括上述任意方法实施例中的终端设备和该实施例中的网络设备。
本领域普通技术人员可以理解：本申请实施例中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。“至少一个”是指一个或者多个。至少两个是指两个或者多个。“至少一个”、“任意一个”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个、种)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。“多个”是指两个或两个以上，其它量词与之类似。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质 中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包括一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Drive，SSD))等。
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中，ASIC可以设置于终端中。可选地，处理器和存储媒介也可以设置于终端中的不同的部件中。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管结合具体特征及其实施例对本申请实施例进行了描述，显而易见的，在不脱离本申请实施例的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请实施例的示例性说明，且视为已覆盖本申请实施例范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请实施例也意图包括这些改动和变型在内。

Claims (31)

  1. 一种小区重选方法，其特征在于，包括：
    从网络设备接收重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选时间信息或重选触发指示信息；
    根据所述重选配置信息，执行测量以进行小区重选。
  2. 如权利要求1所述的方法，其特征在于，所述重选触发信息包括重选触发时间信息；
    所述根据所述重选配置信息，执行测量以进行小区重选，包括：
    在所述重选触发时间信息指示的时间到达的时刻，启动执行测量以进行小区重选。
  3. 如权利要求1所述的方法，其特征在于，所述重选触发信息包括重选触发指示信息；
    所述根据所述重选配置信息，执行测量以进行小区重选，包括：
    在获取到所述重选触发指示信息的时刻，启动执行测量以进行小区重选。
  4. 如权利要求1-3任一项所述的方法，其特征在于，所述重选配置信息还包括重选目标信息，所述重选目标信息用于指示重选测量的目标小区的信息；
    所述根据所述重选配置信息，执行测量以进行小区重选，包括：
    根据所述重选触发信息，确定执行测量；
    若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
  5. 如权利要求4所述的方法，其特征在于，所述重选配置信息还包括重选时间范围信息；
    若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区，包括：
    若在所述重选时间范围信息指示的时间范围内测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
  6. 一种小区重选方法，其特征在于，包括：
    从网络设备接收不重选配置信息和重选配置信息；
    根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选。
  7. 如权利要求6所述的方法，其特征在于，所述不重选配置信息包括不重选条件信息，所述不重选条件信息包括测量目标小区的信息；
    根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选，包括：
    若测量到所述测量目标小区，确定不根据所述重选配置信息执行测量以进行小区重选。
  8. 如权利要求7所述的方法，其特征在于，所述不重选条件信息还包括质量门限；
    若测量到所述测量目标小区，确定不根据所述重选配置信息执行测量以进行小区重选，包括：
    若测量到所述测量目标小区、且所述测量目标小区的质量高于所述质量门限，确定不根据所述重选配置信息执行测量以进行小区重选。
  9. 如权利要求6所述的方法，其特征在于，所述不重选配置信息包括不重选区域信息；
    根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选，包括：
    若所述终端设备位于所述不重选区域信息指示的区域，确定不根据所述重选配置信息执行测量以进行小区重选。
  10. 如权利要求6所述的方法，其特征在于，所述不重选配置信息包括不重选时间范围信息；
    根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选，包括：
    确定在所述不重选时间范围内，不根据所述重选配置信息执行小区测量以进行重选。
  11. 如权利要求6-10任一所述的方法，其特征在于，还包括：
    在确定不根据所述重选配置信息执行测量以进行小区重选后，不执行测量以进行小区重选。
  12. 如权利要求6-10任一所述的方法，其特征在于，还包括：
    在确定不根据所述重选配置信息执行测量以进行小区重选后，根据服务小区的邻区的重选优先级配置信息执行测量以进行小区重选，所述重选优先级配置信息包括专用重选优先级配置信息和/或公共重选优先级配置信息。
  13. 如权利要求6所述的方法，其特征在于，还包括：
    在确定根据所述重选配置信息执行测量以进行小区重选后，根据所述重选配置信息，执行测量以进行小区重选。
  14. 如权利要求13所述的方法，其特征在于，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选触发时间信息、或重选触发指示信息。
  15. 如权利要求14所述的方法，其特征在于，所述重选触发信息包括重选触发时间信息；
    所述根据所述重选配置信息，执行测量以进行小区重选，包括：
    在所述重选触发时间信息指示的时间到达的时刻，启动执行测量以进行小区重选。
  16. 如权利要求14所述的方法，其特征在于，所述重选触发信息包括重选触发指示信息；
    所述根据所述重选配置信息，执行测量以进行小区重选，包括：
    在获取到所述重选触发指示信息的时刻，启动执行测量以进行小区重选。
  17. 如权利要求13所述的方法，其特征在于，所述重选配置信息还包括重选目标信息，所述重选目标信息用于指示重选触发后测量的目标小区的信息；
    所述根据所述重选配置信息，执行测量以进行小区重选，包括：
    根据所述重选触发信息，确定执行测量；
    若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
  18. 如权利要求17所述的方法，其特征在于，所述重选配置信息还包括重选时间范围信息；
    若测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区，包括：
    若在所述重选时间范围信息指示的时间范围内测量到所述目标小区、且所述目标小区满足第一准则，重选到所述目标小区。
  19. 一种小区重选方法，其特征在于，包括：
    从网络设备接收服务小区的小区重选指示信息，所述小区重选指示信息用于指示所述服务小区为跳变小区；
    根据所述小区重选指示信息，执行小区测量，并测量得到满足第一准则的至少一个候选小区；
    确定重选并驻留到目标小区，所述目标小区为所述至少一个候选小区中的非跳变小区、且所述目标小区为合适小区。
  20. 如权利要求19所述的方法，其特征在于，所述小区重选指示信息携带于组播消息、单播消息、下行控制信息、短消息、寻呼消息、或系统消息中。
  21. 一种小区重选方法，其特征在于，包括：
    确定重选配置信息，所述重选配置信息包括重选触发信息、重选目标信息、重选时间范围信息、小区重选指示信息中的一种或多种，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选触发时间信息或重选触发指示信息，所述重选目标信息用于指示重选测量的目标小区的信息，所述重选时间范围信息用于指示测量所述目标小区的时间范围，所述小重选指示信息用于指示终端设备的服务小区为跳变小区；
    向所述终端设备发送所述重选配置信息，所述重选配置信息用于所述终端设备执行测量以进行小区重选。
  22. 如权利要求21所述的方法，其特征在于，还包括：
    向所述终端设备发送不重选配置信息，所述不重选配置信息用于所述终端设备判断是否根据所述重选配置信息执行测量以进行小区重选，所述不重选配置信息包括不重选条件信息、质量门限、不重选区域信息、不重选时间范围信息中的一种或多种，所述不重选条件信息包括测量目标小区的信息。
  23. 一种通信装置，其特征在于，用于实现如权利要求1-18所述的方法。
  24. 一种通信装置，其特征在于，包括：处理器，用于调用存储器中的程序，以执行权利要求1-18任一所述的方法。
  25. 一种通信装置，其特征在于，用于实现如权利要求19-22任一所述的方法。
  26. 一种通信装置，其特征在于，包括：处理器，用于调用存储器中的程序，以执行权利要求19-22任一所述的方法。
  27. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储程序，所述程序被处理器调用时，权利要求1-22任一所述的方法被执行。
  28. 一种计算机程序产品，其特征在于，当所述程序被处理器调用时，权利要求1-22任一所述的方法被执行。
  29. 一种小区重选的系统，其特征在于，包括终端设备和网络设备；
    所述网络设备，用于向所述终端设备发送重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述重选触发信息包括重选时间信息或重选触发指示信息；
    所述终端设备，用于根据所述重选配置信息，执行测量以进行小区重选。
  30. 一种小区重选的系统，其特征在于，包括终端设备和网络设备；
    所述网络设备，用于向所述终端设备发送重选配置信息和不重选配置信息，所述重选配置信息包括重选触发信息，所述重选触发信息用于触发执行测量以进行小区重选，所述 重选触发信息包括重选时间信息或重选触发指示信息；
    所述终端设备，用于根据所述不重选配置信息，判断是否根据所述重选配置信息执行测量以进行小区重选。
  31. 一种小区重选的系统，其特征在于，包括终端设备和网络设备；
    所述网络设备，用于向所述终端设备发送所述终端设备的服务小区的小区重选指示信息，所述小区重选指示信息用于指示所述服务小区为跳变小区；
    所述终端设备，用于根据所述小区重选指示信息，执行小区测量，并测量得到满足第一准则的至少一个候选小区；以及，确定重选并驻留到目标小区，所述目标小区为所述至少一个候选小区中的非跳变小区、且所述目标小区为合适小区。
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