CN112866901A - Method and device for reselecting cell - Google Patents

Method and device for reselecting cell Download PDF

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Publication number
CN112866901A
CN112866901A CN202110023131.1A CN202110023131A CN112866901A CN 112866901 A CN112866901 A CN 112866901A CN 202110023131 A CN202110023131 A CN 202110023131A CN 112866901 A CN112866901 A CN 112866901A
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China
Prior art keywords
reselection
user equipment
scene
cell
ground network
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Pending
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CN202110023131.1A
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Chinese (zh)
Inventor
是元吉
武传国
谭定富
唐兵
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Shanghai Qingkun Information Technology Co Ltd
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Shanghai Qingkun Information Technology Co Ltd
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Priority to CN202110023131.1A priority Critical patent/CN112866901A/en
Publication of CN112866901A publication Critical patent/CN112866901A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18563—Arrangements for interconnecting multiple systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
    • H04B7/18541—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for handover of resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a method and a device for reselecting a cell, wherein the method for reselecting the cell comprises the following steps: the user equipment acquires the position information of the user equipment; the user equipment determines the scene where the user equipment is located according to the position information, wherein the scene where the user equipment is located corresponds to a reselection priority, and the reselection priority defines the reselection priority of a ground network and a non-ground network; and the user equipment performs cell reselection according to the reselection priority corresponding to the scene where the user equipment is located. In summary, the UE can identify the scene according to the information such as the location of the UE itself, and set the corresponding reselection priority for each scene, so that the UE can select a suitable network for cell reselection based on the reselection priority, thereby improving the cell reselection efficiency and improving the user experience.

Description

Method and device for reselecting cell
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for cell reselection.
Background
With the development of wireless communication technology, the application of wireless networks is more and more extensive, and wireless access technology is continuously evolving. For example, a fifth generation (5G) communication technology, or a New Radio (NR) communication technology, is already in commercial use, and the convergence of satellite communication and terrestrial communication is also beginning to enter the research stage. The 3rd generation partnership Project (3 GPP) working group also starts to study the fusion of satellite communication and terrestrial radio access networks (such as terrestrial 5G networks), and constructs a sea, land, air and ground integrated communication network to meet various ubiquitous business requirements of users, which is an important direction for future communication development.
Therefore, a trend of User Equipment (UE) is to support joint networking of a Terrestrial Network (TN) and a Non-terrestrial network (NTN) at the same time.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for cell reselection, so as to implement cell reselection of a user equipment in a network in which a TN and an NTN are jointly networked.
The cell reselection method comprises the following steps: the user equipment acquires the position information of the user equipment; the user equipment determines the scene where the user equipment is located according to the position information, wherein the scene where the user equipment is located corresponds to a reselection priority, and the reselection priority defines the reselection priority of a ground network and a non-ground network; and the user equipment performs cell reselection according to the reselection priority corresponding to the scene where the user equipment is located.
Further, the position information includes altitude information, and/or, positioning information.
Further, the determining the scene where the user equipment is located includes: and determining the scene of the user equipment according to the position information and the speed information of the user equipment.
Further, the user equipment is located in one of the following scenarios: the method comprises the following steps of water traffic, on-road high-speed traffic, air traffic, non-remote areas and remote areas, wherein the reselection priorities corresponding to the scenes of the water traffic, the on-road high-speed traffic, the air traffic and the remote areas are that the reselection priority of the non-ground network is larger than that of the ground network, and the reselection priorities corresponding to the scenes of the non-remote areas are that the reselection priority of the ground network is larger than that of the non-ground network.
Further, the cell reselection is performed by the ue according to the reselection priority corresponding to the scene where the ue is located, including: when the signal quality of the service cell of the user equipment is less than or equal to a threshold, the user equipment performs neighbor cell measurement of the ground network or the non-ground network with high reselection priority; and selecting the neighbor cell with the measurement result meeting the preset condition for residing.
The invention also provides a cell reselection device, which comprises: an acquisition unit configured to acquire position information of the apparatus; a determining unit, configured to determine a scene in which the device is located according to the location information, where the scene in which the device is located corresponds to a reselection priority, and the reselection priority defines a reselection priority of a terrestrial network and a non-terrestrial network; and the reselection unit is used for reselecting the cell according to the reselection priority corresponding to the scene where the device is located.
Further, the position information includes altitude information, and/or, positioning information.
Further, the determining unit is configured to: and determining the scene where the device is located according to the position information and the speed information of the device.
Further, the device is located in one of the following scenes: the method comprises the following steps of water traffic, on-road high-speed traffic, air traffic, non-remote areas and remote areas, wherein the reselection priorities corresponding to the scenes of the water traffic, the on-road high-speed traffic, the air traffic and the remote areas are that the reselection priority of the non-ground network is larger than that of the ground network, and the reselection priorities corresponding to the scenes of the non-remote areas are that the reselection priority of the ground network is larger than that of the non-ground network.
Further, the reselection unit is configured to: when the signal quality of the service cell of the device is less than or equal to a threshold, performing neighbor cell measurement of the ground network or the non-ground network with high reselection priority; and selecting the neighbor cell with the measurement result meeting the preset condition for residing.
The invention also provides a cell reselection device, which comprises a processor and a memory, wherein the processor calls the program stored in the memory to execute any cell reselection method.
The present invention also provides a storage medium storing a program for implementing any of the above cell reselection methods when invoked by a processor.
In summary, the UE can identify the scene according to the information such as the location of the UE itself, and set the corresponding reselection priority for each scene, so that the UE can select a suitable network for cell reselection based on the reselection priority, thereby improving the cell reselection efficiency and improving the user experience.
Drawings
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a cell reselection method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a method for automatically identifying a scene by a UE according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a cell reselection method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an apparatus for cell reselection according to an embodiment of the present invention;
fig. 6 is a schematic diagram of another apparatus for cell reselection according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort. For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.
Please refer to fig. 1, which is a diagram illustrating a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system includes AN Access Network (AN) 110 and a Core Network (Core Network, CN)120, and a User Equipment (UE) 130 accesses to a wireless Network through the AN 110 and communicates with other networks, such as a data Network (data Network), through the CN 120.
The AN may also be referred to as a Radio Access Network (RAN), and the device on the AN side may be referred to as AN device or a RAN device, and may also be referred to as a base station. The names of the different communication systems are different, for example, in a Long Term Evolution (LTE) system, the communication system may be referred to as an evolved node B (eNB), and in a 5G system, the communication system may be referred to as a next generation node B (gnb). AN apparatus may also be a Centralized Unit (CU), a Distributed Unit (DU), or include a CU and a DU.
The AN equipment and the UE communicate through AN air interface (Uu), the AN equipment can serve a plurality of UEs, and the UE can select a cell with better service quality to camp on or access between different cells (provided by the same or different AN equipment). Cell reselection refers to a process of selecting a better cell to provide service by monitoring signal quality of a neighboring cell and a cell (called a serving cell for short) currently serving the UE in an idle state. For example, when the signal quality of the neighboring cell meets the reselection criterion, the terminal will access the neighboring cell to camp on.
At present, a cell reselection only considers a scene of a ground network (TN) and does not consider a combined networking scene of the ground network and a Non-ground network (Non-TerrestrialNetwork, NTN), so that the realization of the cell reselection by the UE in a network of the combined networking of the ground network and the Non-ground network is not facilitated, and a reselection failure or an inefficient condition may occur.
For example, in the communication system shown in fig. 1, the AN device may be disposed on a satellite or on the ground, and both may provide services for the UE130, and the current UE only supports cell reselection of a ground network, which cannot fully utilize the advantages of joint networking, thereby reducing user experience.
In view of the above problems, embodiments of the present invention provide a cell reselection method supporting TN and NTN joint networking in wireless communication, which automatically identifies a scenario by using information such as a location of a UE, and quickly reselects a TN or NTN cell.
The following description is made with reference to the accompanying drawings.
Please refer to fig. 2, which is a schematic diagram illustrating a cell reselection method according to an embodiment of the present invention. As shown in fig. 2, the method comprises the steps of:
s210: the UE acquires the position information of the UE;
s220: the UE determines the scene of the UE according to the position information of the UE, wherein the scene of the UE corresponds to a reselection priority, and the reselection priority defines the reselection priorities of TN and NTN;
s230: and the UE performs cell reselection according to the reselection priority corresponding to the scene where the UE is located.
In the method, the UE can identify the scene according to the information such as the position of the UE and the like, and set the corresponding reselection priority for each scene, so that the UE can select a proper network for cell reselection based on the reselection priority, the cell reselection efficiency is improved, and the user experience is improved.
When the UE is powered on, the UE may camp on a cell of a preferred network, where the preferred network may be a TN (e.g., an LTE or NR network) or an NTN, and the embodiment is not limited. In the embodiment of the invention, after the UE resides in a cell of a certain network, the UE automatically identifies the scene according to the current position of the UE.
For example, the UE may determine whether the UE is in an air traffic (e.g., airplane) scenario based on its altitude information. As another example, the UE may determine whether it is in a water area or a remote area based on the positioning information, and thus may determine whether the UE is in a water traffic (e.g., a ship) or remote area scenario. For another example, the UE may determine whether it is in high-speed motion according to its speed information, thereby determining whether it is a high-speed traffic scene on the road.
Then, the above location information may include altitude information and/or positioning information, and the UE may further determine the scene where the UE is located according to the speed information.
For example, please refer to fig. 3, which is a schematic diagram illustrating a method for a UE to automatically recognize a scene according to an embodiment of the present invention. As shown in fig. 3, the method comprises the steps of:
s310: the UE obtains its current altitude information indicating the UE's altitude h, which may be in units of meters or kilometers, for example, although the invention is not limited thereto.
S320: determining the scene of the UE according to the height information, and if the height information shows that the altitude H is greater than or equal to the height threshold HThresholdThen, it is determined that the scene where the UE is located is an air traffic scene, such as an airplane scene. Otherwise, the following step S330 is performed.
S330: and acquiring the positioning information of the UE.
The Positioning information may be obtained through a Global Positioning System (GPS), or may be obtained through a Beidou Positioning method. The positioning information is used to indicate the geographical location of the UE on the earth, and may be, for example, latitude and longitude information of the UE.
S340: whether the UE is in a water area, a remote area or a non-remote area can be determined according to the positioning information of the UE.
Non-remote locations may include, for example, cities, towns, etc. having a certain population size or population density. The remote area may comprise, for example, a region of small population size or density, such as a desert.
If the UE is in the water area, the scene where the UE is located is a water traffic scene; and if the UE is in the remote area, the scene in which the UE is located is a remote area scene. If the UE is located in a non-remote area, the UE may further determine the scene where the UE is located according to the current speed of the UE, and at this time, the following steps may be performed:
s350: and acquiring speed information of the UE, where the speed information indicates a current moving speed v of the UE, and a unit of the speed is, for example, kilometer per hour, which is not limited by the present invention.
The speed information can be calculated and obtained based on a GPS or Beidou positioning mode.
S360: determining the scene of the UE according to the speed information, if the current moving speed V of the UE is larger than or equal to the threshold value VThresholdThen the UE is in a state of high-speed motion, and may be determined as a high-speed traffic scene on the road, such as a high-speed rail scene. Otherwise, the UE is in a low-speed moving or stationary state in the non-remote area, and at this time, a scene in the non-remote area is defined.
The reselection priority is set for each scene, wherein the reselection priority corresponding to the scenes of water traffic, on-road high-speed traffic, air traffic and remote areas is that the reselection priority of NTN is greater than that of TN, and the reselection priority corresponding to the scenes of non-remote areas is that the reselection priority of TN is greater than that of NTN.
Therefore, the UE can automatically identify scenes according to the information such as the position of the UE and the like, and quickly reselects the TN or NTN cell, so that the cell reselection efficiency is improved, and the user experience is improved.
Optionally, the UE may initiate cell reselection only when the service quality of the current serving cell does not meet the requirement. That is, when the signal quality of the serving cell of the UE is less than or equal to the threshold, the UE performs neighbor cell measurement of TN or NTN with a high reselection priority. For example, when the UE determines that the Reference Signal Receiving Power (RSRP) of the serving cell is less than or equal to the RSRP threshold RSRPThresholdAnd starting TN or NTN adjacent cell measurement, and selecting the adjacent cell with the measurement result meeting the preset condition for residence. Such as a cell selection rule, e.g., S-criteria. The present invention is not limited and can be a criterion that is met by a selected cell, either existing or in future settings.
And the cell reselection is started only when the service quality of the current service cell does not meet the requirement, so that the energy of the UE can be saved, and the standby time of the UE can be prolonged.
In the method, the scene recognition is carried out by taking the example of firstly judging the height, judging the positioning and then judging the speed as an example, in other embodiments, the judgment can also be carried out in other sequences, for example, firstly judging the positioning, determining the geographical position of the UE and then judging the speed and/or the height so as to determine the scene where the UE is located; for another example, the speed is determined first, and then the geographical location and/or the altitude are determined to determine the scene where the UE is located.
Please refer to fig. 4, which is a schematic diagram illustrating a cell reselection method according to an embodiment of the present invention. As shown in fig. 4, the method includes the steps of:
s410: the UE automatically identifies the scene where the UE is located, and the scene identification method may adopt the method provided in the above embodiment, which is not described herein again.
And the UE performs cell reselection of the network with a high priority according to the reselection priority corresponding to the identified scenario, for example, if the TN priority is high, performs TN cell reselection (S420), and if the NTN priority is high, performs NTN cell reselection (S430).
The TN cell reselection and the NTN cell reselection may use the same or different reselection algorithms or rules, which is not limited in the embodiment of the present invention.
S440: and selecting the neighbor cells meeting the cell selection rule for residing. The rule is for example the S-criterion.
For example, the UE is powered on in a desert area and resides in a satellite network, NTN. Then, the UE automatically identifies the scene where the UE is located as a remote area by adopting the method. And when the signal quality of the serving cell does not meet the requirement (for example, RSRP < -95dB), triggering the NTN to reselect the neighbor cell measurement, and reselecting the new serving cell by the UE according to the measurement result.
For another example, the UE may be powered on in a non-remote area (e.g., a city) and may reside in a TN. And then the user with the UE boards the airplane to take off, the UE acquires the current altitude h, and the altitude is greater than a threshold value (for example, h is greater than 6000m), so that the UE automatically identifies the current scene of the UE as an air traffic scene by adopting the method. And when the signal quality of the serving cell does not meet the requirement (for example, RSRP < -95dB), triggering the NTN to reselect the neighbor cell measurement, and reselecting the new serving cell by the UE according to the measurement result.
For another example, the UE may be powered on in a non-remote area (e.g., a city) and may reside in a TN. And then the user holding the UE climbs the high-speed rail, the UE calculates the moving speed v based on the GSP/Beidou, and the moving speed is greater than a threshold value (for example, v is greater than 200km/h), so that the UE automatically identifies the current scene of the UE as an on-road high-speed traffic scene by adopting the method. And when the signal quality of the serving cell does not meet the requirement (for example, RSRP < -95dB), triggering the NTN to reselect the neighbor cell measurement, and reselecting the new serving cell by the UE according to the measurement result.
Therefore, the cell reselection method can support the UE to be suitable for the cell reselection in various scenes when the TN and NTN are jointly networked, so that the UE can be quickly reselected to a proper cell, and the communication quality of the UE is improved.
Based on the same inventive concept, an embodiment of the present invention further provides a device for cell reselection, where the device may be a UE, or may also be a device located in the UE, such as a chip, and configured to perform the method performed by the UE in the above method embodiment.
For example, please refer to fig. 5, which is a schematic diagram of an apparatus for cell reselection according to an embodiment of the present invention. As shown in fig. 5, the apparatus 500 is located at a UE and includes an obtaining unit 510, a determining unit 520, and a reselecting unit 530.
The obtaining unit 510 is configured to obtain location information of the device, and the determining unit 520 is configured to determine a scenario in which the device is located according to the location information, where the scenario in which the device is located corresponds to a reselection priority, and the reselection priority defines a reselection priority of a terrestrial network and a non-terrestrial network. The reselection unit 530 is configured to perform cell reselection according to a reselection priority corresponding to a scenario in which the apparatus is located.
The process of determining the scene where the device is located by the determining unit 520 and the process of performing cell reselection by the reselecting unit 530 are the same as the above method embodiments, and are not described herein again.
The division of each unit of the above device is only a division of a logical function, and when the actual implementation is implemented, all or part of the division may be integrated into one physical entity, or may be physically separated. And these units can be realized in the form of software called by processor; or may be implemented entirely in hardware; and part of the units can be realized in the form of calling by a processor through software, and part of the units can be realized in the form of hardware.
For example, the functions of the above units may be stored in a memory in the form of program codes, which are scheduled by a processor to implement the functions of the above units. The Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling programs. As another example, the above units may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, in combination with the above two methods, part of the functions is implemented in the form of a scheduler code of the processor, and part of the functions is implemented in the form of a hardware integrated circuit. And when the above functions are integrated together, the functions can be realized in the form of a system-on-a-chip (SOC).
Please refer to fig. 6, which is a schematic diagram of a cell reselection apparatus according to an embodiment of the present invention. The above apparatus may be located within a UE. As shown in fig. 6, the apparatus 600 includes a processor 610, a memory 620, and an interface circuit 630, wherein the processor 610 calls a program stored in the memory 620 to perform the above cell reselection method performed by the UE, and the interface circuit 630 is used for information interaction between the apparatus and other apparatuses.
Those skilled in the art will understand that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the above program may be stored in a computer readable storage medium, where the program codes are called by a processor, and the processor is configured to execute the method executed by the UE in the above method embodiments. The embodiment of the present invention does not limit the form and number of the memory and the processor, for example, the memory may be a CPU or other processor capable of calling a program, and the memory may be various media capable of storing program codes, such as a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A method of cell reselection, comprising:
the user equipment acquires the position information of the user equipment;
the user equipment determines the scene where the user equipment is located according to the position information, wherein the scene where the user equipment is located corresponds to a reselection priority, and the reselection priority defines the reselection priority of a ground network and a non-ground network;
and the user equipment performs cell reselection according to the reselection priority corresponding to the scene where the user equipment is located.
2. The method of claim 1, wherein the location information comprises altitude information, and/or positioning information.
3. The method of claim 1, wherein the determining the scene in which the user equipment is located comprises:
and determining the scene of the user equipment according to the position information and the speed information of the user equipment.
4. The method of claim 1, wherein the user equipment is located in one of the following scenarios: the method comprises the following steps of water traffic, on-road high-speed traffic, air traffic, non-remote areas and remote areas, wherein the reselection priorities corresponding to the scenes of the water traffic, the on-road high-speed traffic, the air traffic and the remote areas are that the reselection priority of the non-ground network is larger than that of the ground network, and the reselection priorities corresponding to the scenes of the non-remote areas are that the reselection priority of the ground network is larger than that of the non-ground network.
5. The method according to claim 1, wherein the performing, by the ue, cell reselection according to the reselection priority corresponding to the scenario in which the ue is located comprises:
when the signal quality of the service cell of the user equipment is less than or equal to a threshold, the user equipment performs neighbor cell measurement of the ground network or the non-ground network with high reselection priority;
and selecting the neighbor cell with the measurement result meeting the preset condition for residing.
6. An apparatus for cell reselection, comprising:
an acquisition unit configured to acquire position information of the apparatus;
a determining unit, configured to determine a scene in which the device is located according to the location information, where the scene in which the device is located corresponds to a reselection priority, and the reselection priority defines a reselection priority of a terrestrial network and a non-terrestrial network;
and the reselection unit is used for reselecting the cell according to the reselection priority corresponding to the scene where the device is located.
7. The apparatus of claim 6, wherein the position information comprises altitude information, and/or positioning information.
8. The apparatus of claim 6, wherein the determining unit is configured to:
and determining the scene where the device is located according to the position information and the speed information of the device.
9. The apparatus of claim 6, wherein the apparatus is located in one of the following scenarios: the method comprises the following steps of water traffic, on-road high-speed traffic, air traffic, non-remote areas and remote areas, wherein the reselection priorities corresponding to the scenes of the water traffic, the on-road high-speed traffic, the air traffic and the remote areas are that the reselection priority of the non-ground network is larger than that of the ground network, and the reselection priorities corresponding to the scenes of the non-remote areas are that the reselection priority of the ground network is larger than that of the non-ground network.
10. The apparatus of claim 6, wherein the reselection unit is configured to:
when the signal quality of the service cell of the device is less than or equal to a threshold, performing neighbor cell measurement of the ground network or the non-ground network with high reselection priority;
and selecting the neighbor cell with the measurement result meeting the preset condition for residing.
CN202110023131.1A 2021-01-08 2021-01-08 Method and device for reselecting cell Pending CN112866901A (en)

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WO2024060169A1 (en) * 2022-09-23 2024-03-28 Qualcomm Incorporated Techniques for joint non-terrestrial networks and aircraft relaying networks

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