WO2022233052A1 - 小区确定方法、装置、设备及可读存储介质 - Google Patents

小区确定方法、装置、设备及可读存储介质 Download PDF

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Publication number
WO2022233052A1
WO2022233052A1 PCT/CN2021/092215 CN2021092215W WO2022233052A1 WO 2022233052 A1 WO2022233052 A1 WO 2022233052A1 CN 2021092215 W CN2021092215 W CN 2021092215W WO 2022233052 A1 WO2022233052 A1 WO 2022233052A1
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Prior art keywords
cell
backhaul link
ntn
message
candidate
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PCT/CN2021/092215
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English (en)
French (fr)
Inventor
于新磊
李海涛
陈景然
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to EP21939698.3A priority Critical patent/EP4336901A4/en
Priority to PCT/CN2021/092215 priority patent/WO2022233052A1/zh
Priority to CN202180097669.5A priority patent/CN117280749A/zh
Publication of WO2022233052A1 publication Critical patent/WO2022233052A1/zh
Priority to US18/499,148 priority patent/US20240064629A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • 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

  • the present application relates to the technical field of satellite communications, and in particular, to a cell determination method, apparatus, device, and readable storage medium.
  • NTN non-terrestrial communication networks
  • Typical NTNs include satellite communications and the like.
  • Satellite communication has the characteristics of long communication distance, large coverage area and flexible networking. It can provide services for both fixed terminals and various mobile terminals.
  • satellites use multiple beams to cover the ground.
  • a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter. ground area. Because the distance between the terminal and the satellite, and between the satellite and the ground station is too large, the delay between the terminal and the data network is relatively large. Therefore, NTN is not suitable for some delay-sensitive services.
  • IAB integrated access and backhaul
  • Embodiments of the present application provide a cell determination method, apparatus, device, and readable storage medium.
  • An electronic device acquires a connection mode of a backhaul link, selects an appropriate cell according to the connection mode, and accesses it, so as to achieve the purpose of improving service quality.
  • an embodiment of the present application provides a method for determining a cell, including:
  • an embodiment of the present application provides a method for determining a cell, including:
  • the second message is used to indicate whether there is a non-terrestrial communication network NTN in the backhaul link of the current cell and/or the backhaul link of the neighbor cells of the current cell ;
  • Cell reselection is performed according to the second message.
  • an embodiment of the present application provides a method for determining a cell, including:
  • the network node sends a first message to the electronic device located in the current cell, where the first message is used to indicate whether there is a non-terrestrial communication network NTN in the backhaul link of the current cell.
  • an embodiment of the present application provides a method for determining a cell, including:
  • the network node sends a second message to the electronic device located in the current cell, where the second message is used to indicate whether there is non-terrestrial communication in the backhaul link of the current cell and/or the backhaul link of neighbor cells of the current cell Network NTN.
  • an apparatus for determining a cell including:
  • a transceiver module configured to receive a first message from a network node in the current cell, where the first message is used to indicate whether there is a non-terrestrial communication network NTN in the backhaul link of the current cell;
  • a processing module configured to perform cell selection according to the first message.
  • an apparatus for determining a cell including:
  • a transceiver module configured to receive a second message from the network node in the current cell, where the second message is used to indicate whether the backhaul link of the current cell and/or the backhaul link of a neighbor cell of the current cell exists Non-terrestrial communication network NTN;
  • a processing module configured to perform cell reselection according to the second message.
  • an apparatus for determining a cell including:
  • the transceiver module is configured to send a first message to the electronic device located in the current cell, where the first message is used to indicate whether there is a non-terrestrial communication network NTN in the backhaul link of the current cell.
  • an apparatus for determining a cell including:
  • a transceiver module configured to send a second message to the electronic device located in the current cell, where the second message is used to indicate whether the backhaul link of the current cell and/or the backhaul link of the neighbor cell of the current cell exists Non-terrestrial communication network NTN.
  • an electronic device including:
  • an embodiment of the present application provides a network node, including:
  • an embodiment of the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and the computer instructions, when executed by a processor, implement the above first aspect or the first aspect The method described in any one of the feasible implementations of the second aspect; or, the computer instructions, when executed by the processor, implement the method described in the second aspect or any one of the feasible implementations of the second aspect.
  • an embodiment of the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and the computer instructions, when executed by a processor, implement the third aspect or the third aspect above The method described in any feasible implementation manner of the above; or, the computer instruction implements the method described in the fourth aspect or any one feasible implementation manner of the fourth aspect when executed by the processor.
  • an embodiment of the present application provides a computer program product including a computing program, when the computer program is executed by a processor, the method described in the first aspect or any one of the feasible implementation manners of the first aspect is implemented. or, when the computer program is executed by the processor, the method described in the second aspect or any one of the feasible implementation manners of the second aspect is implemented.
  • an embodiment of the present application provides a computer program product including a computing program, when the computer program is executed by a processor, the method described in the third aspect or any one of the feasible implementation manners of the third aspect is implemented. or, when the computer program is executed by the processor, the method described in the fourth aspect or any one of the feasible implementation manners of the fourth aspect is implemented.
  • an embodiment of the present application provides a chip, which is coupled to a memory in an electronic device, so that the chip invokes program instructions stored in the memory when running, thereby enabling the electronic device to execute the first aspect or the first aspect above
  • the method described in any one of the feasible implementations of the second aspect; or, the electronic device is required to execute the method described in the second aspect or any one of the feasible implementations of the second aspect.
  • an embodiment of the present application provides a chip, which is coupled to a memory in a network node, so that the chip invokes program instructions stored in the memory when running, thereby enabling the network node to execute the third aspect or the third aspect above
  • the method described in any feasible implementation manner of the above; or, the network node is caused to execute the method described in the fourth aspect or any feasible implementation manner of the fourth aspect.
  • the network node sends a first message to the electronic device in the current cell, where the first message is used to indicate whether there is an NTN in the backhaul link. After receiving the first message, the electronic device performs cell selection according to the first message.
  • the cell selection and/or cell reselection can select an appropriate cell for access according to the factor of whether there is an NTN in the backhaul link. Therefore, Can improve business quality.
  • Fig. 1A is a kind of satellite network architecture schematic diagram of transparent forwarding
  • 1B is a schematic diagram of a satellite network architecture for regeneration and forwarding
  • 2A is a schematic diagram of an IAB node accessing a network through SA;
  • Figure 2B is a schematic diagram of an IAB node accessing the network through the NSA;
  • Figure 3 is a schematic diagram of the topology of a DAG
  • 4A is a schematic diagram of a network architecture of a cell determination method provided by an embodiment of the present application.
  • 4B is a schematic diagram of another network architecture of the cell determination method provided by the embodiment of the present application.
  • 4C is a schematic diagram of another network architecture of the cell determination method provided by the embodiment of the present application.
  • FIG. 5 is a flowchart of a cell determination method provided by an embodiment of the present application.
  • FIG. 6 is a flowchart of another cell determination method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of an apparatus for determining a cell according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another apparatus for determining a cell according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another apparatus for determining a cell according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another apparatus for determining a cell provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of an electronic device according to an embodiment of the application.
  • FIG. 12 is a schematic structural diagram of a network node according to an embodiment of the present application.
  • Non-terrestrial communication network generally uses satellite communication to provide communication services to terrestrial users. Compared to terrestrial cellular networks, satellite communications have many unique advantages.
  • satellite communication is not limited by the user's geographical area, and general terrestrial communication cannot cover areas such as oceans, mountains, and deserts where communication equipment cannot be installed, or communication equipment is not installed in sparsely populated areas.
  • general terrestrial communication cannot cover areas such as oceans, mountains, and deserts where communication equipment cannot be installed, or communication equipment is not installed in sparsely populated areas.
  • satellite communication because a satellite can cover a large ground, it can also orbit around the earth. Therefore, theoretically every corner of the earth can be covered by satellite communications.
  • Satellite communication can cover remote mountainous areas and poor and backward areas, so that users in these areas can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital gap with developed areas and promoting the development of these areas.
  • the satellite communication distance is long, and even if the communication distance increases, the communication cost does not increase significantly.
  • satellite communication has high stability and is not restricted by natural disasters.
  • Communication satellites can be divided into low-Earth orbit (LEO) satellites, medium-Earth orbit (MEO) satellites, geostationary Earth orbit (GEO) satellites, and high elliptical orbit satellites according to their different orbital heights.
  • LEO and GEO low-Earth orbit
  • the altitude range of low-orbit satellites is 500km-1500km, and the corresponding orbital period is about 1.5 hours-2 hours.
  • the signal propagation delay of the single-hop communication between the user equipment and the satellite is generally less than 20ms.
  • the maximum satellite viewing time is 20 minutes.
  • the signal propagation distance is short, the link loss is small, and the transmit power requirements of the user terminal are not high.
  • the signal propagation delay of the single-hop communication between the user equipment and the satellite is generally 250ms.
  • satellites use multiple beams to cover the ground.
  • a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter. ground area.
  • satellite network architectures considered by 3GPP, one is a satellite network architecture with transparent payload, and the other is a satellite network architecture with regenerative payload.
  • FIG. 1A is a schematic diagram of a satellite network architecture for transparent forwarding.
  • the satellite network architecture includes: Next Generation Radio Access Network (NG-RAN), 5G core network (5G core network, 5G CN) and data network (data Network).
  • NG-RAN includes user equipment (user equipment, UE), base station (gNB), satellite and terrestrial gateway (NTN gateway) and so on.
  • the UE and the gNB are connected through the new radio (NR) Uu interface (that is, the universal user network interface), the base station and the 5G core network (5G Core Network, 5G CN) are connected through the NG interface, and the 5G CN is connected to the data network. Connect via N6 interface.
  • NR new radio
  • the satellite and the terrestrial gateway form a remote radio unit (remote radio unit, RRU).
  • RRU remote radio unit
  • the satellite and the terrestrial gateway do not process the data in the protocol stack during the forwarding process, so as to realize transparent forwarding.
  • FIG. 1B is a schematic diagram of a satellite network architecture for regeneration and forwarding.
  • the satellite network architecture includes: NG-RAN, 5G CN, and a data network.
  • NG-RAN includes UE, satellite and terrestrial gateway.
  • the UE and the satellite are connected through the NR Uu interface
  • the satellite and the 5G CN are connected through the NG interface
  • the 5G CN and the data network are connected through the N6 interface.
  • the satellite and the ground gateway are connected through an NG interface (ie, NG over SRI) running on a satellite wireless interface (sateliteradio interface, SRI).
  • SRI satellite wireless interface
  • the wireless link between the satellite and the terrestrial gateway is commonly referred to as a feeder link.
  • the connection between the UE and the satellite is often referred to as a service link.
  • 5G new radio supports IAB technology. Based on IAB technology, 5G can be deployed at a lower cost and in a simpler way in places where optical fiber cannot be laid. By extending NR to support wireless backhaul instead of fiber backhaul, IAB technology is regarded as one of the popularization of 5G. important technology.
  • the donor node connects to the 5G CN through the NG interface
  • the IAB node IAB node
  • the UE only needs to access the IAB node to access the 5G network.
  • the IAB node can access the network in a standalone (SA) manner or a non-standalone (non-standalone, NAS) manner.
  • SA standalone
  • NAS non-standalone
  • FIG. 2A is a schematic diagram of an IAB node accessing the network through SA.
  • each relay node supporting NR access and wireless backhaul is called an IAB-node.
  • the termination point of NR backhualing is called IAB donor.
  • IAB donor represents a gNB that supports the IAB function.
  • the IAB donor accesses the 5G CN through the NG interface, such as access and mobility management function (Access and Mobility Management Function, AMF) entities, user plane function (User Plane Function, UPF) entities, etc.
  • AMF Access and Mobility Management Function
  • UPF User Plane Function
  • the IAB donor and other gNBs are connected through the Xn interface.
  • FIG. 2B is a schematic diagram of the IAB node accessing the network through the NSA.
  • the non-independent networking manner is, for example, option 3, that is, EN-DC. That is to say, the non-independent networking adopts the dual connection of 4G wireless access network and 5G NR, the 4G base station (eNB) is the main station, and the 5G base station (gNB) is the auxiliary station.
  • IAB donor represents a gNB that supports the IAB function.
  • the IAB donor accesses the 4G core network through the S1-U interface, such as Mobility Management Entity (MME), Service-PDN gateway (S-PGW), etc.
  • MME Mobility Management Entity
  • S-PGW Service-PDN gateway
  • the IAB donor is connected to the macro cell base station (MeNB) in the 4G network through the X2-C interface.
  • the MeNB is connected to the eNB through the X2 interface.
  • the MeNB is connected to the MME and the S-PGW through the S1 interface.
  • the IAB node establishes a connection with the MeNB through the LTE Uu interface.
  • the IAB donor includes the IAB donor CU and the IAB donor DU
  • the IAB node includes the IAB node MT and the IAB node DU.
  • the connection between IABdonorCU and IABdonorDU is through wired network.
  • IABdonorCU can connect multiple IABdonorDUs by wire.
  • the IAB donor DU can only be connected to one IABdonorCU, and it can only belong to one gNB. Therefore, an IABdonorDU can only establish a connection with one IABdonorCU through a wired method, and an IAB node DU can only be connected to an IABdonorCU through a relay method.
  • IAB node includes IAB node MT and IAB node DU.
  • the IAB node DU can serve the common UE or the next-hop IAB node through the NR Uu interface, and there is a logical F1 interface between each IAB node and the IAB donor CU of the IAB donor.
  • the IAB node MT has the functions of the physical layer, layer 2, and non-access (Non-Access-Stratum, NAS) layer, and can be connected to the IAB node DU or IAB donor.
  • the IAB node is connected to an IAB donor through single hop and multiple hops, forming a Directed Acyclic Graph (DAG) whose root node is the IAB donor.
  • DAG Directed Acyclic Graph
  • Figure 3 is a schematic diagram of the topology of a DAG.
  • the neighbor node of IAB DU that is, IAB node UD
  • the neighbor node of IAB donor DU is called child node
  • the neighbor node of IAB MT is called parent node.
  • the direction from the IAB node to the child node is called the downstream (downstream) direction
  • the direction from the IAB node to the parent node is called the upstream (upstream) direction.
  • the link between the IAB node and the IAB donor and between the IAB nodes is called the backhaul link.
  • the IAB donor is used in the IAB topology to perform resource, topology and routing management of the base station.
  • NTN may exist between the IAB node and the IAB donor. Therefore, when the UE performs cell selection or cell reselection, the backhaul link of the selected camping cell is likely to have NTN. , that is, the IAB node providing services for the residing cell establishes a backhaul link with the IAB donor through satellite.
  • the distance between the UE and the satellite and between the satellite and the ground station is too large, resulting in a long delay between the UE and the data network, and some delay-sensitive services are not suitable for Used in NTN network.
  • the IAB node establishes a backhaul link with the IAB donor through the satellite
  • the UE does not know that the backhaul network is established between the IAB node and the IAB donor through the satellite, it is only based on the reference signal receiving power (Reference Signal Receiving Power, RSRP) ⁇ Reference Signal Receiving Quality (RSRQ) to perform cell selection or cell reselection, and to determine the camping cell and access it, it is very likely that the IAB node and IAB donor corresponding to the camping cell will establish a back-to-back relationship through satellite. transmission link.
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the selected camping cell may not be the optimal cell, resulting in degraded service quality.
  • the embodiments of the present application provide a cell determination method, apparatus, device, and readable storage medium.
  • the electronic device obtains the connection mode of the backhaul link, selects an appropriate cell according to the connection mode, and accesses it, so as to realize the improvement of service quality. Purpose.
  • the cell determination method provided in the embodiment of the present application is suitable for a scenario where IAB technology and satellite communication coexist, and can be applied to the network architecture shown in FIG. 1A and FIG. 1B above.
  • the IAB node is connected to the IAB donor through a single hop or multiple hops.
  • FIG. 4A , FIG. 4B and FIG. 4C please refer to FIG. 4A , FIG. 4B and FIG. 4C .
  • FIG. 4A is a schematic diagram of a network architecture of a cell determination method provided by an embodiment of the present application.
  • the IAB node is connected to the IAB donor through a single hop.
  • FIG. 4B is a schematic diagram of another network architecture of the cell determination method provided by the embodiment of the present application.
  • the network architecture there may be other IAB nodes between the IAB node41 and the IAB node45.
  • a backhaul link is established between IAB node45 and IAB donor46 via satellite.
  • IAB node41 is connected to IAB donor46 by multi-hop.
  • the IAB donor46 is connected to the 5G CN48 through the NG interface.
  • IAB node42 is connected to IAB donor46 by a single hop.
  • the gNB43 is connected to the 5G CN48 through the NG interface.
  • the eNB44 is connected to the 4G CN49 through the S1 interface.
  • the electronic device 47 is used to perform cell selection or cell reselection.
  • FIG. 4A and 4B described above are directed to transparent forwarding scenarios.
  • This embodiment of the present application also supports regeneration and forwarding scenarios.
  • FIG. 4C is a schematic diagram of another network architecture of the cell determination method provided by the embodiment of the present application.
  • the IAB donor is set on the satellite.
  • the IABdonor can also be set between the terrestrial gateway and the 5GCN. It should be noted that for an NTN network that supports regeneration and forwarding, IABdonorCU and IABdonorDU can be connected through a satellite link, that is, IABdonorCU is set between the ground gateway and the 5G CN, and IABdonorDU is set on the satellite.
  • the electronic device 47 is also referred to as UE, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, User agent or user device etc.
  • the electronic device 47 may be a station (STATION, STA) in the WLAN, may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital Processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, end devices in next-generation communication systems such as NR networks, or Terminal equipment in the future evolved Public Land Mobile Network (Public Land Mobile Network, PLMN) network, etc.
  • STATION STA
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the electronic device 47 can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellite, etc.).
  • the electronic device 47 may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) Terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal in smart grid Equipment, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) Terminal equipment
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving
  • wireless terminal equipment in remote medical wireless terminal in smart grid Equipment
  • wireless terminal equipment in transportation safety wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • the electronic device 47 may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network nodes may be IAB node41, IAB node42, or may be a network node that does not support IAB technology, such as gNB43, eNB44, etc.
  • the network node is a network node that does not support the IAB technology
  • the network node is, for example, a long-term evolution (long-term evolution, LTE) system, a next-generation (mobile communication system) (next radio, NR) system, or authorized assisted access long-term evolution.
  • Evolved base station (evolutional node B, eNB or e-NodeB) macro base station, micro base station (also called “small base station”), pico base station, access site (access point, AP), transmission point (transmission point, TP) or new generation base station (new generation Node B, gNodeB), etc.
  • the network node is used to communicate with the electronic device 47, and may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, or may be WCDMA
  • the base station (NodeB, NB) in the LTE network can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device in an NR network ( gNB) or a network device in a future evolved PLMN network or a network device in an NTN network, etc.
  • gNB NR network
  • gNB network device in a future evolved PLMN network or a network device in an NTN network, etc.
  • a network node can provide services for a cell, and the electronic device 47 communicates with the network node through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network node
  • transmission resources for example, frequency domain resources, or spectrum resources
  • the cell may be a network node
  • a cell corresponding to a cell such as a base station
  • the cell can belong to a macro base station, or it can belong to a base station corresponding to a small cell (Small cell).
  • Small cell have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the technical solutions of the embodiments of the present application can be applied to a communication system in which satellite communication and IAB technology coexist, such as a 5G communication system and various communication systems in the process of evolution from 4G to 5G.
  • the evolved system includes a communication system in an independent networking mode and a communication system in a non-independent networking mode, such as the EN-DC (option 3), NE-DC (option 4) and NGEN-DC (option 7) architectures.
  • FIG. 5 is a flowchart of a method for determining a cell provided by an embodiment of the present application. This embodiment is described from the perspective of interaction between an electronic device and a network node. This embodiment is used for cell selection, and this embodiment includes:
  • the network node sends a first message to the electronic device located in the current cell.
  • the electronic device receives the first message from the network node in the current cell.
  • the first message is used to indicate whether there is an NTN in the backhaul link of the current cell. Wherein, when the link is backhauled, the link between the integrated IAB node and the host node is backhauled.
  • the network node is an IAB node, an eNB or an NB.
  • the network node sends the first message to the electronic device.
  • the electronic device performs cell selection according to the first message.
  • cell selection is also referred to as cell primary selection, initial cell selection, etc., which refers to the search for a public land mobile network (Public Land Mobile Network) after an electronic device is powered on or enters the coverage area of a network node from a blind spot. , PLMN) all the frequency points allowed, and combined with the first message to select a suitable cell to camp on. For example, if the first message indicates that an NTN exists in the backhaul link of the current cell and the service type of the electronic device is a delay-sensitive service, the electronic device determines that the current cell is a non-resident cell.
  • PLMN public land mobile network
  • the service of the electronic device is not sensitive to delay, and when the current cell satisfies the first criterion, the electronic device determines that the current cell is not a camping cell.
  • the first criterion is also called the S criterion, and is used to indicate that cell selection is a condition that is satisfied by the RSRP and RSRQ of the current cell.
  • the network node sends a first message to the electronic device in the current cell, where the first message is used to indicate whether there is an NTN in the backhaul link of the current cell.
  • the electronic device After receiving the first message, the electronic device performs cell selection according to the first message.
  • the cell to be selected needs to be measured in the process of cell selection, so as to evaluate the channel quality and determine whether the camping condition is met.
  • the residency condition it is determined whether to reside in conjunction with the first message. For example, if the current cell complies with the first criterion, it is determined whether to camp on the current cell in combination with the first message.
  • the electronic device when the electronic device is powered on or enters the coverage area from a blind area, the electronic device searches for all frequency points allowed by the PLMN, and selects a suitable cell to camp on.
  • the cell selection types include initial cell selection and cell selection based on stored information.
  • the electronic device performs cell selection based on the stored information.
  • Stored information means that the electronic device has stored some carrier frequency related information, and may also store some cell parameter information, for example, cell parameters obtained from previously received measurement control information or previously camped or detected cells.
  • a suitable cell is preferentially selected from the stored information. Once a suitable cell appears, the electronic device will select the cell and camp on it. If none of the cells in which the relevant information is stored are suitable, the electronic device will initiate an initial cell selection.
  • the electronic device measures the current cell to obtain the measurement result. Whether the current cell meets the camping condition is determined according to the measurement result, and if the current cell meets the camping condition, it is further determined whether to camp on the current cell in combination with the first message.
  • the criterion for cell selection in the cellular network is called the first criterion, and the first criterion is also called the S criterion. If the current cell meets the first criterion, the electronic device considers that the current cell meets the camping condition.
  • the current cell meets the first criterion, which means that the measurement quantities of RSRP and RSRQ of the current cell meet the following conditions at the same time:
  • the electronic device determines whether to access the current cell in combination with the first message, that is, whether to use the current cell as the camping cell.
  • the first message is used to indicate whether there is an NTN in the backhaul link of the current cell.
  • the network node when there is no NTN in the backhaul link of the current cell and the network node supports the IAB technology, the network node does not send the first message, and the electronic device does not receive the first message, then the current cell provides services by default. There is no NTN in the backhaul link between the network node and the host node. Alternatively, the network node sends the first message, the first message does not carry the indication information, and after receiving the first message, the electronic device determines that there is no NTN in the backhaul link. When the NTN exists in the backhaul link, the network node sends a first message carrying the indication information, and after receiving the first message, the electronic device determines that the NTN exists in the backhaul link.
  • the first message carries the indication information of the backhaul link; when the indication information of the backhaul link is 1, there is an NTN in the backhaul link, and when the backhaul link's indication information is 1 When the indication information is 0, there is no NTN in the backhaul link; or, when the indication information on the backhaul link is 0, there is an NTN in the backhaul link, and when the backhaul link is When the indication information of is 1, there is no NTN in the backhaul link.
  • the indication information is, for example, 1 bit, where 1 indicates that NTN exists in the backhaul link, and 0 indicates that NTN does not exist in the backhaul link. Alternatively, 0 indicates that NTN is present on the backhaul link, and 1 indicates that NTN is not present on the backhaul link.
  • the first message carries the delay of the backhaul link; when the delay is greater than a preset delay, there is NTN in the backhaul link; when the delay is less than or equal to With a preset time delay, there is no NTN in the backhaul link.
  • the delay can be a specific delay degree, such as 20 milliseconds (ms), 40ms, etc.; it can also be a delay level.
  • the delay can be divided into two levels according to the delay degree: the first level represents the delay Greater than or equal to 20ms, it is represented by 0, and the second level represents that the delay is less than 20ms, which is represented by 1.
  • the delay information can be represented by one bit, which reduces signaling overhead to a certain extent.
  • NTN exists in the backhaul link; when the first message does not carry the NTN type, there is no NTN in the backhaul link.
  • the NTN type is, for example, 2 bits, and the NTN type is, for example, GEO, LEO, and the like.
  • the network node can flexibly indicate to the electronic device whether there is an NTN in the backhaul link of the current cell through indication information, time delay or NTN type.
  • the first message is described.
  • the embodiment of the present application is not limited to this, and in other feasible implementation manners, the first message may also carry one or more of indication information, delay, or NTN type.
  • the first message carries the NTN type and indication information.
  • the electronic device determines that there is an NTN in the backhaul link according to the indication information, and further determines that the NTN in the backhaul link is LEO or GEO according to the NTN type.
  • the electronic device when there is an NTN in the backhaul link, it is determined that the current cell is a non-resident cell; When there is no NTN in the link, it is determined that the current cell is the camping cell.
  • the current cell satisfies the first criterion.
  • the network node is IAB node41
  • the first message carries the indication information of whether there is NTN in the backhaul link, and the information of the backhaul link.
  • the electronic device can determine, according to the first message, that NTN exists in the backhaul link between the IAB node41 and the IAB donor46. At this time, the electronic device determines that the current cell is a non-camping cell.
  • the electronic device determines There is no NTN in the backhaul link of the current cell, and the current cell is used as the camping cell.
  • the IAB node 42 can also send a first message, the first message clearly indicates that there is no NTN in the backhaul link of the current cell served by the IAB node 42, and the electronic device determines the current cell after receiving the first message. There is no NTN in the backhaul link, and the current cell is the camping cell.
  • the electronic device determines that there is no backhaul link related to the IAB technology.
  • the current cell satisfies the first criterion, and if the network node is the IAB node41, the first message carries the delay of the backhaul link.
  • the electronic device determines that the time delay of the backhaul link is less than or equal to the preset time delay, and determines that the current cell is the camping cell. If the electronic device determines that the delay of the backhaul link is greater than the preset time delay, it determines that the current cell is a non-resident cell
  • the electronic device determines the device characteristics. After that, cell selection is performed according to the device characteristics of the electronic device. In the process of determining the device characteristics, the electronic device determines the device characteristics according to the service type and/or the terminal type of the electronic device.
  • the delay-sensitive characteristic of the electronic device indicates that the electronic device is a delay-insensitive device
  • the current cell is determined to be the camping cell; when the delay-sensitive characteristic of the electronic device indicates that the electronic device is When delaying sensitive equipment, determine that the current cell is a non-resident cell
  • the terminal type is, for example, an industrial sensor type terminal or the like.
  • the service type is, for example, a delay-sensitive business and a delay-insensitive business.
  • Delay-sensitive services are, for example, Enhanced Mobile Broadband (EMBB) services, voice services, wearable services, and the like.
  • EMBB Enhanced Mobile Broadband
  • the current cell satisfies the first criterion and there is an NTN in the backhaul link of the current cell, if the terminal type of the electronic device indicates that the electronic device is an industrial sensor type terminal, this type of electronic device Not sensitive to delay. Therefore, the electronic device determines that the current cell is the camping cell.
  • the service type of the electronic device indicates that the service registered by the electronic device is a delay-sensitive service
  • the first message indicates that the NTN type in the backhaul link of the current cell is the GEO type. Because delay-sensitive services are not suitable for long-delay backhaul link transmission such as GEO. Therefore, the electronic device determines that the current cell is a non-camping cell.
  • the electronic device determines that the current cell is a non-camping cell.
  • the first message is sent by the host node to the network node, and broadcasted by the network node to the electronic device.
  • the Radio Resource Control (Radio Resource Control, RRC) layer of the IAB donor CU of the IAB donor generates the first message, and then the IAB donor sends the first message to the IAB node through the F1 interface, After receiving the first message, the IAB node broadcasts the first message.
  • RRC Radio Resource Control
  • the RRC layer of the IAB donor CU of IAB donor46 when the network node is IAB node41, the RRC layer of the IAB donor CU of IAB donor46 generates the first message, and then sends the first message to IAB node41 through the F1 interface. After receiving the first message, the IAB node41 broadcasts the first message.
  • the first message is carried in any one of the following signaling: radio resource control RRC signaling, system information block 1 (system information block, SIB1), SIBx, primary system information block (master information block, MIB).
  • RRC signaling system information block 1 (system information block, SIB1), SIBx, primary system information block (master information block, MIB).
  • the first message can be flexibly sent through different signaling.
  • FIG. 6 is a flowchart of another cell determination method provided by an embodiment of the present application. This embodiment is described from the perspective of interaction between an electronic device and a network node. This embodiment is used for cell reselection, and this embodiment includes:
  • the network node sends a second message to the electronic device located in the current cell.
  • the second message is used to indicate whether there is a non-terrestrial communication network NTN in the backhaul link of the current cell and/or the backhaul link of neighbor cells of the current cell.
  • NTN non-terrestrial communication network
  • the link between the integrated IAB node and the host node is backhauled.
  • the current cell is a cell served by an IAB node
  • the neighbor cell is the cell served by the IAB node
  • the electronic device performs cell reselection according to the second message.
  • cell reselection refers to that after the electronic device camps on the current cell, it detects the signals of the neighbor cell and the current cell in idle mode (RRC_IDLE state) or inactive mode (RRC_INACTIVE state). quality, and combined with the second message to select a better cell to provide the process of serving the signal. For example, if the second message indicates that there is an NTN in the backhaul link of the current cell and there is no NTN in the backhaul link of the neighbor cell, even if the RSRP of the neighbor cell is not as good as the RSRP of the current cell, if the service type of the electronic device is delay For sensitive services, the electronic device performs cell reselection to select a neighbor cell and access it.
  • RRC_IDLE state idle mode
  • RRC_INACTIVE state inactive mode
  • the network node sends a second message to the electronic device in the current cell, where the second message is used for whether there is an NTN in the backhaul link of the current cell or a neighbor cell.
  • the electronic device After receiving the second message, the electronic device performs cell selection and reselection according to the first message.
  • the cell can be reselected according to the factor of whether there is an NTN in the backhaul link. Appropriate cell access, therefore, can improve service quality.
  • the electronic device when the electronic device performs cell reselection according to the second message, the electronic device determines candidate cells from the current cell and/or neighbor cells of the current cell to obtain a candidate cell set. Afterwards, the electronic device performs cell reselection on the candidate cells in the candidate cell set according to the second message.
  • the network node may indicate whether there is an NTN in the backhaul link through one or more of the indication information, delay or NTN type of the backhaul link.
  • the first message when there is no NTN in the backhaul link of the candidate cell, the first message does not carry the indication information of the backhaul link of the candidate cell, and the electronic device determines the backhaul link after receiving the first message. There is no NTN in the road.
  • the network node sends the first message carrying the indication information, after receiving the first message, the electronic device determines that an NTN exists in the backhaul link.
  • the second message carries the indication information of the backhaul link of the candidate cell; when the indication information of the backhaul link is 1, the NTN exists in the backhaul link of the candidate cell, when the indication information of the backhaul link is 0, there is no NTN in the backhaul link of the candidate cell; or, when the indication information of the backhaul link is 0 When the information is 0, there is an NTN in the backhaul link of the candidate cell, and when the indication information of the backhaul link is 1, there is no NTN in the backhaul link of the candidate cell.
  • the indication information of each candidate cell is, for example, 1 bit, where 1 indicates that NTN exists in the backhaul link, and 0 indicates that NTN does not exist in the backhaul link. Alternatively, 0 indicates that NTN is present on the backhaul link, and 1 indicates that NTN is not present on the backhaul link.
  • the second message carries the delay of the backhaul link of the candidate cell; when the delay is greater than a preset delay, there is an NTN in the backhaul link of the candidate cell; When the delay is less than or equal to the preset delay, there is no NTN in the backhaul link of the candidate cell.
  • the delay can be a specific time extension, such as 20 milliseconds (ms), 40 ms, etc.; it can also be a delay level.
  • the delay is divided into two levels according to the time extension: the first The first level indicates that the delay is greater than or equal to 20ms, which is represented by 0, and the second level indicates that the delay is less than 20ms, which is represented by 1.
  • the delay information can be represented by one bit, which reduces signaling overhead to a certain extent.
  • the NTN type is, for example, 2 bits, and the NTN type is, for example, GEO, LEO, and the like.
  • the network node can flexibly indicate to the electronic device whether there is an NTN in the backhaul link of the current cell and/or neighbor cells through indication information, time delay or NTN type.
  • the second message may also carry one or more of indication information, delay, or NTN type.
  • the second message carries the NTN type and indication information.
  • the electronic device determines that there is an NTN in the backhaul link according to the indication information, and further determines that the NTN in the backhaul link is LEO or GEO according to the NTN type.
  • the cell to be selected needs to be measured in the process of cell reselection, so as to evaluate the channel quality and determine whether the camping condition is met.
  • the residency condition it is determined whether to reside in conjunction with the second message.
  • the electronic device camps on the current cell, and if the signal quality of the neighbor cell is better, it determines whether to camp on the neighbor cell in combination with the second message.
  • Cell reselection is divided into intra-frequency cell reselection and inter-frequency cell reselection.
  • the same-frequency cell reselection can solve the wireless coverage problem, and the inter-frequency cell reselection can not only solve the wireless coverage problem, but also achieve load balancing by setting the priorities of different frequency points.
  • the electronic device selects a better cell and camps on it by detecting the signal quality of the neighbor cell and the current cell and combining with the second message. After the electronic device successfully camps on the current cell through the cell selection process, it will continue to perform cell measurement on the current cell and decide whether to start the neighbor cell measurement.
  • the electronic device In the neighbor cell measurement process, when the signal quality and level of the neighbor cell satisfy the first criterion and satisfy a certain reselection decision criterion, the electronic device will abandon the current cell and camp on the neighbor cell.
  • the reselection decision criterion is, for example, the second criterion, which is also referred to as the R criterion or the like.
  • the radio resource control (Radio Resource Control, RRC) layer of the electronic device calculates Srxlev/Squal according to the measurement results of RSRP and RSRQ. For details, reference may be made to the description of the first criterion in the above cell selection, which will not be repeated here. After that, the electronic device judges whether to start the neighbor cell measurement according to the calculated Srxlev/Squal.
  • RRC Radio Resource Control
  • the electronic device compares Srxlev and S IntraSearchP , and Squal and S IntraSearchQ .
  • S IntraSearchQ and S IntraSearchP are the same-frequency measurement start thresholds.
  • the electronic device compares Srxlev and S nonIntraSearchP , and Squal and S nonIntraSearchQ .
  • S nonIntraSearchQ and S nonIntraSearchP are inter-frequency or inter-system measurement start thresholds.
  • Table 2 shows the decision process of whether to start intra-frequency measurement or inter-frequency measurement.
  • the electronic device When the electronic device satisfies the condition for initiating intra-frequency measurement, the electronic device performs intra-frequency measurement on neighboring cells of the current cell to obtain a set of candidate cells. When the electronic device satisfies the condition of inter-frequency measurement, the electronic device performs inter-frequency measurement on neighboring cells of the current cell to obtain a set of candidate cells. After that, the electronic device sorts the cells in the candidate cell set according to certain criteria (as shown in Table 3), and selects a suitable cell according to the sorting and camps on.
  • Treselection RAT represents the time interval, and Thresh X,HighQ and Thresh X,HighP are broadcast to the electronic device by the network side.
  • the high-priority frequency is given priority over the low-priority frequency
  • the high-priority RAT is given priority over the low-priority RAT.
  • the frequencies of the current cell and each neighbor cell are frequencies of the same frequency or the same priority
  • the current cell and the neighbor cells are sorted according to the second criterion.
  • the second criterion, the R criterion is as follows:
  • Q meas,s represents the RSRP measurement amount of the current cell
  • Q meas,n represents the RRSP measurement amount of the neighbor cell
  • the electronic device after the electronic device camps on the current cell, it continuously measures the current cell to obtain the measurement result. After that, the electronic device judges whether to start the neighbor cell measurement according to the measurement result, and the judgment basis is shown in Table 2. When the measurement result indicates that the neighbor cell measurement is started, the electronic device measures the neighbor cells of the current cell. Initiating adjacent cell measurement includes initiating intra-frequency measurement, initiating inter-frequency or inter-system measurement, and so on.
  • the electronic device After sorting the current cell and neighbor cells according to the second criterion to obtain a set of candidate cells, the electronic device further selects the camping cell through the best cell range (rangeToBestCell). Further selecting a camping cell by using the best cell range (rangeToBestCell) means: selecting all candidate cells within the range of rangeToBestCell that differs from the R value of the cell with the best signal quality to obtain a candidate cell set.
  • the electronic device selects an appropriate cell from the set of candidate cells as the camping cell according to the second message.
  • the candidate cell with the largest number of beams that does not contain NTN and whose signal quality value meets the threshold is preferentially selected. If the backhaul link of each candidate cell in the candidate cell set has NTN, the candidate cell with the most beams whose signal quality value meets the threshold is determined from the candidate cell set as the camping cell.
  • the backhaul link of the current cell includes NTN
  • the backhaul link of candidate cell A does not include NTN
  • candidate cell A includes 4 beams whose signal quality values all exceed the threshold.
  • the backhaul link of candidate cell B does not include NTN.
  • candidate cell B includes 6 beams, the signal quality of only 2 beams in the 6 beams exceeds the threshold. Therefore, the electronic device selects the candidate cell A as the camping cell.
  • the purpose of improving the service quality is achieved by selecting a suitable camping cell in the intra-frequency measurement.
  • the network node is one IAB node among the one or more IAB nodes, and the current cell is a cell served by the IAB node that sends the second message .
  • the network node is IAB node41, there is NTN in the backhaul link of the current cell, because there is no NTN in the backhaul link of the IAB node42 that provides services for the neighbor cell, therefore, the electronic equipment selects The neighbor cell is used as the camping cell.
  • the electronic device selects the current cell as the camping cell.
  • the second message is carried to indicate that the backhaul link is in the Whether there is one or more of NTN indication information, delay of the backhaul link, and NTN type of the backhaul link.
  • NTN indication information used to indicate whether there is an NTN in the backhaul link is, for example, 1 bit (bit), 1 means NTN is present, 0 means NTN is not present.
  • the type of NTN is, for example, 2 bits, and the type of NTN is, for example, GEO, LEO, and the like.
  • the delay can be a specific delay degree, such as 20 milliseconds (ms), 40ms, etc.; it can also be a delay level.
  • the delay can be divided into two levels according to the delay degree: the first level represents the delay Greater than or equal to 20ms, it is represented by 0, and the second level represents that the delay is less than 20ms, which is represented by 1.
  • the delay information can be represented by one bit, which reduces signaling overhead to a certain extent.
  • the network node can flexibly indicate to the electronic device whether there is an NTN in the backhaul link of the current cell or the neighbor cell.
  • the network node may also not support the IAB technology.
  • the network node is gNB43 or eNB44.
  • the current cell is a cell served by a network node that does not support IAB technology.
  • there is no NTN in the backhaul link of the current cell but there is an NTN in the backhaul link of the neighbor cell.
  • the second message indicates whether there is an NTN in the backhaul link of a neighbor cell, which is a cell served by an IAB node of the one or more IAB nodes.
  • the electronic device measures the current cell, and determines whether to start the neighbor cell measurement according to the measurement result. If the neighbor cell measurement is started, and the reselection target frequency is the same frequency or the same priority frequency, the electronic device sorts the current cell and the neighbor cell according to the second criterion, and further selects from the sorting result through the best cell range (rangeToBestCell).
  • the camping cell obtains a set of candidate cells.
  • the electronic device determines, from the candidate cell set, that there is no NTN in the backhaul link, and the candidate cell with the most beams whose signal quality value satisfies the threshold is used as the camping cell. . If the second message indicates that the backhaul link of each candidate cell in the candidate cell set has NTN, then determine the candidate cell with the most beams whose signal quality value meets the threshold from the candidate cell set as the camping cell .
  • the electronic device determines, according to the second message, that NTN exists in the backhaul link between the IAB node41 and the IAB donor46. However, there is no NTN in the backhaul link between the IAB node42 and the IAB donor46, and the number of beams whose signal quality exceeds the threshold in the neighbor cells served by the IAB node42 is greater than that in the neighbor cells served by the gNB43 or eNB44. At this time, the electronic device determines that the neighbor cell served by the IAB node42 is the camping cell.
  • the neighbor cell served by the IAB node41, the neighbor cell served by the gNB43, the neighbor cell served by the eNB44 and the current cell are the same frequency cell or the same priority frequency cell.
  • the electronic device determines, according to the second message, that NTN exists in the backhaul link between the IAB node41 and the IAB donor46. And there is no NTN in the backhaul link between IAB node42 and IAB donor46. That is to say, there is no NTN in the backhaul link of the current cell, and NTN exists in the backhaul link of the neighbor cell.
  • the electronic device determines that the neighbor cell served by the gNB 43 is the camping cell.
  • the electronic device selects the candidate cell with the most beams whose signal quality value satisfies the threshold as the camping cell. For example, a candidate cell has 5 beams, of which the signal quality of 4 beams meets the threshold, and another candidate cell has 6 beams, of which the signal quality of 2 beams meets the threshold, then the electronic device determines that there are 5 beams with signal quality.
  • the candidate cell is the camping cell.
  • the electronic device measures the current cell, and determines whether to start the neighbor cell measurement according to the measurement result. If the neighbor cell measurement is started, and the reselection target frequency is the same frequency or the same priority frequency, the electronic device sorts the current cell and the neighbor cell according to the second criterion, and further selects the cell from the sorting result through the best cell range (rangeToBestCell). The remaining cells obtain a set of candidate cells. During the reselection process, the electronic device determines, according to the second message, the candidate cell with the shortest delay in the backhaul link from the candidate cell set as the camping cell.
  • the electronic device uses the candidate cell with the shortest delay of the backhaul link as the camping cell.
  • the electronic device can also combine the time delay and the number of beams to determine the camping cell.
  • the camping cell is determined by the network configuration by relying solely on the time delay or by combining the two.
  • the electronic device selects the candidate cell with the most beams and the smallest delay in the signal quality value satisfying the threshold as the camping cell.
  • Stay in the neighborhood For example, there are 3 candidate cells, and the delays of the 3 candidate cells are 20ms, 20ms, and 80ms in sequence.
  • the number of beams of the two candidate cells with a delay of 20 milliseconds is 6 and 4, respectively, but the beams whose signal quality value meets the threshold are 2 and 4, respectively.
  • the number of beams in the candidate cell with a delay of 80ms is 6, among which, the signal quality of 3 beams meets the threshold.
  • the electronic device determines that the time delay is 20 and the number of beams is 4 candidate cells as the camping cells.
  • the electronic device measures the current cell, and determines whether to start the neighbor cell measurement according to the measurement result. If the neighbor cell measurement is started, and the reselection target frequency is the same frequency or the same priority frequency, the electronic device sorts the current cell and the neighbor cell according to the second criterion, and further selects the cell from the sorting result through the best cell range (rangeToBestCell). After the remaining cell obtains the set of candidate cells, when there is an NTN in the backhaul link of each candidate cell in the set of candidate cells, the electronic device determines the device characteristics of the electronic device itself, and executes cell execution according to the device characteristics of the electronic device. reselection. When the electronic device determines the device characteristics of the electronic device, the device characteristics may be determined according to the service type and/or terminal type of the electronic device.
  • the candidate cell with the most beams whose signal quality value meets the threshold is determined from the candidate set as the camping cell; when the device characteristic indicates When the electronic device is a delay-sensitive device, it is determined that a candidate cell in the candidate cell set is a non-resident cell.
  • the electronic device determines, according to the second message, that there is an NTN in the backhaul link between the IAB node41 and the IAB donor46. There is no NTN in the backhaul link of neighbor cells served by eNB 44 or gNB 43. After that, the electronic device determines whether to camp on a neighbor cell according to the terminal type, service type, and the like.
  • the service type of the electronic device is a delay-sensitive service, and the electronic device resides in the current cell served by IAB node41. If the RSRP of the neighbor cell served by gNG43 meets the residency condition, even if the RSRP of the neighbor cell is higher than that of the current cell. The RSRP is low, and the electronic device resides in the neighbor cell after cell reselection, thereby ensuring service delay.
  • the electronic device resides in the current cell served by the IAB node42, and if the neighbor cell served by the IAB node41 satisfies the first criterion, after cell reselection The electronic device camps on a neighbor cell.
  • the electronic device determines according to the second message that NTN exists in the backhaul link of the neighbor cell served by IAB node41, and the backhaul link of the neighbor cell served by gNB43 and IAB node42. does not exist in NTN. After that, the electronic device determines whether to camp on a neighbor cell according to the terminal type, service type, and the like.
  • the electronic device determines according to the second message that there is an NTN in the backhaul link of the neighbor cell served by IAB node41, and the neighbor cell served by eNB44 and IAB node42 exists. NTN does not exist on the backhaul link of . After that, the electronic device determines whether to camp on a neighbor cell according to the terminal type, service type, and the like.
  • the electronic device determines the set of candidate cells, when the second message indicates the NTN type of the backhaul link of each candidate cell in the set of candidate cells, it determines the set of cells from the set of candidate cells.
  • the candidate cell with the most beams whose signal quality value meets the threshold is used as the camping cell.
  • the electronic device resides in the current cell served by the IAB node41, and the candidate cell includes the current cell and a neighbor cell.
  • the second message indicates that NTN exists in the backhaul link of each candidate cell, if the neighbor cell signal If there are more beams whose quality value meets the threshold than the current cell, the electronic device camps on a neighbor cell.
  • the second message is sent by the host node to the network node, and broadcasted by the network node to the electronic device.
  • the network node is an IAB node41
  • the RRC layer of the IAB donor CU of the IAB donor46 generates a second message, and then sends the second message to the IAB node41 through the F1 interface. Send a second message.
  • the IAB node41 broadcasts the second message.
  • the second message is carried in any one of the following signaling: radio resource control RRC signaling, system information block 1 (system information block, SIB1), SIBx, primary system information block (master information block, MIB).
  • RRC signaling system information block 1 (system information block, SIB1), SIBx, primary system information block (master information block, MIB).
  • the second message can be flexibly sent through different signaling.
  • FIG. 7 is a schematic diagram of an apparatus for determining a cell according to an embodiment of the present application.
  • the cell determination apparatus 700 is integrated on the above-mentioned electronic equipment to enable the electronic equipment to implement the above-mentioned cell selection method.
  • the cell determination apparatus 700 includes: a transceiver module 71 and a processing module 72 .
  • a transceiver module 71 configured to receive a first message from a network node in the current cell, where the first message is used to indicate whether there is a non-terrestrial communication network NTN in the backhaul link of the current cell;
  • a processing module 72 configured to perform cell selection according to the first message.
  • the first message carries the indication information of the backhaul link; when the indication information of the backhaul link is 1, there is an NTN in the backhaul link, and when the backhaul link is 1
  • the indication information of the backhaul link is 0, there is no NTN in the backhaul link; or, when the indication information of the backhaul link is 0, there is NTN in the backhaul link.
  • the indication information of the backhaul link is 1, there is no NTN in the backhaul link.
  • the first message carries the delay of the backhaul link
  • NTN exists in the backhaul link
  • the processing module 72 is configured to determine that the current cell is a non-resident cell when there is an NTN in the backhaul link; when there is no NTN in the backhaul link when the current cell is determined as the camping cell.
  • the processing module 72 is configured to determine the device characteristics of the electronic device when there is an NTN in the backhaul link; and perform cell selection according to the device characteristics of the electronic device.
  • the processing module 72 when the processing module 72 performs cell selection according to the device characteristics of the electronic device, when the device characteristics indicate that the electronic device is a delay-insensitive device, determine the cell selection.
  • the current cell is a camping cell; when the device characteristic indicates that the electronic device is a delay-sensitive device, the current cell is determined to be a non-reserving cell.
  • the processing module 72 is configured to perform cell selection on the current cell according to the first message when the current cell satisfies a first criterion, and the first criterion is the The conditions that the reference signal received power RSRP and the reference signal received quality RSRQ of the current cell meet.
  • the network node is an IAB node
  • the current cell is a cell served by the IAB node.
  • the transceiver module 71 is configured to receive the first message from a host node and forwarded via the IAB node, where the host node is the host node of the IAB node.
  • the first message is carried in any one of the following signaling: radio resource control RRC signaling, system information blocks SIB1, SIBx, and main system information block MIB.
  • FIG. 8 is a schematic diagram of another apparatus for determining a cell according to an embodiment of the present application.
  • the cell determination apparatus 800 is integrated on the above-mentioned electronic equipment to enable the electronic equipment to implement the above-mentioned cell reselection method.
  • the cell determination apparatus 800 includes: a transceiver module 81 and a processing module 82.
  • the transceiver module 81 is configured to receive a second message from the network node in the current cell, where the second message is used to indicate whether the backhaul link of the current cell and/or the backhaul link of the neighbor cell of the current cell is in the backhaul link.
  • the processing module 82 is configured to perform cell reselection according to the second message.
  • the processing module 82 is configured to determine candidate cells from the current cell and/or neighbor cells of the current cell to obtain a candidate cell set; The candidate cells in the candidate cell set perform cell reselection.
  • the second message carries the indication information of the backhaul link of the candidate cell; when the indication information of the backhaul link is 1, there is a backhaul link of the candidate cell.
  • NTN when the indication information of the backhaul link is 0, there is no NTN in the backhaul link of the candidate cell; or, when the indication information of the backhaul link is 0, the candidate cell There is an NTN in the backhaul link of the candidate cell, and when the indication information of the backhaul link is 1, there is no NTN in the backhaul link of the candidate cell.
  • the second message carries the time delay of the backhaul link of the candidate cell; when the time delay is greater than the preset time delay, the backhaul link of the candidate cell has NTN; when the delay is less than or equal to the preset delay, there is no NTN in the backhaul link of the candidate cell.
  • the processing module 82 is configured to, according to the second message, determine from the candidate cell set that there is no NTN in the backhaul link and that the signal quality value satisfies the threshold is the most beam.
  • the candidate cell is used as the camping cell; if the backhaul link of each candidate cell in the candidate cell set has NTN, the candidate cell with the most beams whose signal quality value meets the threshold is determined from the candidate cell set as a resident cell.
  • the processing module 82 is configured to determine, according to the second message, a candidate cell with the shortest backhaul link delay from the candidate cell set as a camping cell.
  • the processing module 82 is configured to determine from the candidate cell set when the second message carries the NTN type of the backhaul link of each candidate cell in the candidate cell set.
  • the candidate cell with the most beams whose signal quality value meets the threshold is taken as the camping cell.
  • the processing module 82 is configured to determine the device characteristics of the electronic device when the second message indicates that there is an NTN in the backhaul link of the candidate cell; according to the device characteristics of the electronic device to perform cell reselection.
  • the processing module 82 when the processing module 82 performs cell reselection according to the device characteristics of the electronic device, when the device characteristics indicate that the electronic device is a delay-insensitive device, it is In the candidate set, determine the candidate cell with the most beams whose signal quality value meets the threshold as the camping cell; when the device characteristic indicates that the electronic device is a delay-sensitive device, determine the candidate cell in the candidate cell set The cell is a non-resident cell.
  • the processing module 82 determines a candidate cell from the current cell and/or neighbor cells of the current cell to obtain a candidate cell set, and is used to perform cell measurement on the current cell. , obtain the measurement result; judge whether to start the neighbor cell measurement according to the measurement result; when the measurement result indicates to start the neighbor cell measurement, perform the neighbor cell measurement on the neighbor cells of the current cell to obtain the candidate cell set, wherein , the frequency of the neighbor cell is the same as the frequency of the current cell, or the priority of the frequency of the neighbor cell is the same as the priority of the frequency of the current cell.
  • the network node is an IAB node among one or more IAB nodes
  • the current cell is a cell served by the IAB node that sends the second message
  • the neighbor cell is a Among the one or more IAB nodes, any one of the IAB nodes other than the IAB node sending the second message provides a service cell.
  • the transceiver module 81 is configured to receive the second message from a host node and forwarded via the IAB node, where the host node is the host node of the IAB node, and the IAB node is the host node of the IAB node.
  • a node is the cell serving the current cell.
  • the network node does not support the IAB technology
  • the current cell is a cell served by the network node
  • the neighbor cell is a cell served by the IAB node.
  • the second message is carried in any one of the following signaling: radio resource control RRC signaling, system information blocks SIB1, SIBx, and main system information block MIB.
  • the cell determination apparatuses provided in the foregoing FIG. 7 and FIG. 8 can perform the actions of the electronic equipment in the foregoing embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 9 is a schematic diagram of another apparatus for determining a cell according to an embodiment of the present application.
  • the cell determination apparatus 900 is integrated on the above-mentioned network so that the network node sends the first message.
  • the cell determination apparatus 900 includes: a transceiver module 91 .
  • the transceiver module 91 is configured to send a first message to the electronic device located in the current cell, where the first message is used to indicate whether there is a non-terrestrial communication network NTN in the backhaul link of the current cell.
  • NTN exists in the backhaul link; when the first message does not carry indication information, there is no NTN in the backhaul link NTN.
  • the first message carries the indication information of the backhaul link; when the indication information of the backhaul link is 1, there is NTN in the backhaul link, when the backhaul link is 1 When the indication information of the backhaul link is 0, there is no NTN in the backhaul link; or, when the indication information of the backhaul link is 0, there is NTN in the backhaul link. When the indication information of the backhaul link is 1, there is no NTN in the backhaul link.
  • the first message carries the delay of the backhaul link; when the delay is greater than a preset delay, there is NTN in the backhaul link; when the delay is less than or equal to the preset time delay, there is no NTN in the backhaul link.
  • NTN exists in the backhaul link; when the first message does not carry the NTN type, the backhaul link does not exist NTN.
  • the network node is an IAB node
  • the current cell is a cell served by the IAB node.
  • the transceiver module 91 before the transceiver module 91 sends the first message to the electronic device located in the current cell, it is also used to receive the first message from the host node, and the host node is the host node of the IAB node. .
  • the first message is carried in any one of the following signaling: radio resource control RRC signaling, system information blocks SIB1, SIBx, and main system information block MIB.
  • FIG. 10 is a schematic diagram of another apparatus for determining a cell according to an embodiment of the present application.
  • the cell determination apparatus 1000 is integrated on the above-mentioned network so that the network node sends the second message, and the cell determination apparatus 1000 includes: a transceiver module 1001 .
  • Transceiver module 1001 configured to send a second message to an electronic device located in the current cell, where the second message is used to indicate whether the backhaul link of the current cell and/or the backhaul link of a neighbor cell of the current cell is There is a non-terrestrial communication network NTN.
  • the second message when the second message carries indication information, there is an NTN in the backhaul link of the candidate cell; when the second message does not carry indication information, the backhaul link of the candidate cell exists.
  • NTN there is no NTN, wherein the candidate cell is any candidate cell in the candidate cell set, and the candidate cell set is determined according to the current cell and/or neighbor cells.
  • the second message carries the indication information of the backhaul link of the candidate cell; when the indication information of the backhaul link is 1, there is a backhaul link of the candidate cell.
  • NTN when the indication information of the backhaul link is 0, there is no NTN in the backhaul link of the candidate cell; or, when the indication information of the backhaul link is 0, the candidate cell There is an NTN in the backhaul link of the candidate cell, and when the indication information of the backhaul link is 1, there is no NTN in the backhaul link of the candidate cell.
  • the second message carries the time delay of the backhaul link of the candidate cell; when the time delay is greater than the preset time delay, the backhaul link of the candidate cell has NTN; when the delay is less than or equal to the preset delay, there is no NTN in the backhaul link of the candidate cell.
  • the network node is an IAB node among one or more IAB nodes
  • the current cell is a cell served by the IAB node that sends the second message
  • the neighbor cell is a Among the one or more IAB nodes, any one of the IAB nodes other than the IAB node sending the second message provides a service cell.
  • the transceiver module 1001 before the transceiver module 1001 sends the second message to the electronic device located in the current cell, it is also used to receive the second message from the host node, and the host node is the host node of the IAB node. .
  • the network node does not support the IAB technology
  • the current cell is a cell served by the network node
  • the neighbor cell is a cell served by the IAB node.
  • the second message is carried in any one of the following signaling: radio resource control RRC signaling, system information block SIB1, SIBx, main system information block MIB
  • the cell determination apparatus provided in the above-mentioned FIG. 9 or FIG. 10 can perform the actions of the network nodes in the above-mentioned embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in FIG. 11 , the electronic device 1100 includes:
  • processor 1101 and memory 1102 are processors 1101 and memory 1102;
  • the memory 1102 stores computer instructions
  • the processor 1101 executes the computer instructions stored in the memory 1102, so that the processor 1101 executes the above method applied to an electronic device.
  • the electronic device 1100 further includes a communication part 1103 .
  • the processor 1101 , the memory 1102 and the communication part 1103 can be connected through the bus 1104 .
  • FIG. 12 is a schematic structural diagram of a network node according to an embodiment of the present application. As shown in Figure 12, the network node 1200 includes:
  • processor 1201 and memory 1202;
  • the memory 1202 stores computer instructions
  • the processor 1201 executes the computer instructions stored in the memory 1202, so that the processor 121 executes the method as applied to a network node as above.
  • the network node 1200 further includes a communication component 1203 .
  • the processor 1201 , the memory 1202 and the communication part 1203 can be connected through the bus 1204 .
  • Embodiments of the present application further provide a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed by a processor, are used to implement the above method applied to an electronic device.
  • Embodiments of the present application further provide a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed by a processor, are used to implement the above method applied to a network node.
  • Embodiments of the present application further provide a computer program product, where the computer program product includes a computer program, and when the computer program is executed by a processor, the above method applied to an electronic device is implemented.
  • Embodiments of the present application further provide a computer program product, where the computer program product includes a computer program, and when the computer program is executed by a processor, the above method applied to a network node is implemented.
  • Embodiments of the present application further provide a chip, where the chip is coupled to a memory in an electronic device, so that the chip calls program instructions stored in the memory when running, so that the electronic device performs various processes of the electronic device in the above method embodiments.
  • Embodiments of the present application further provide a chip, where the chip is coupled to a memory in a network node, so that the chip invokes program instructions stored in the memory when running, so that the network node performs various processes of the network node in the foregoing method embodiments.
  • a 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 device.
  • Computer instructions may be stored in 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 site, computer, server, or data center over a wire (e.g.
  • the computer-readable storage medium can be any available medium that can be stored by a computer or a data storage device such as a server, a data center, etc. that includes one or more available media integrated.
  • Useful media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

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Abstract

本申请实施例提供一种小区确定方法、装置、设备及可读存储介质，网络节点向当前小区中的电子设备发送第一消息，该第一消息用于指示当前小区的回传链路中是否存在NTN。电子设备根据第一消息执行小区选择。小区重选过程中，网络节点向当前小区中的电子设备发送第二消息，该第二消息用于指示当前小区的回传链路和/或当前小区的邻居小区的回传链路中是否存在NTN。电子设备根据第二消息执行小区重选。采用该种方案，由于电子设备能够确定回传链路中是否存在NTN，依据回传链路中是否存在NTN的因素选择合适的小区接入，因此，能够提高业务质量。

Description

小区确定方法、装置、设备及可读存储介质 技术领域
本申请涉及卫星通信技术领域，尤其涉及一种小区确定方法、装置、设备及可读存储介质。
背景技术
目前，第三代合作伙伴计划((the3rd Generation Partnership Project，3GPP)正在研究非地面通信网络(Non Terrestrial Network,NTN)。典型的NTN包括卫星通信等。
卫星通信具备通信距离远、覆盖面积大、组网灵活等特点，其既可为固定终端，也可为各种移动终端提供服务。为了保证卫星的覆盖以及提升整个卫星通信系统的系统容量，卫星采用多波束覆盖地面，一颗卫星可以形成几十甚至数百个波束来覆盖地面；一个卫星波束可以覆盖直径几十至上百公里的地面区域。由于终端与卫星、卫星与地面站之间的距离过大，使得终端与数据网络之间的延迟比较大。因此，NTN并不适合一些时延敏感业务。
另外，5G技术中引入了接入回传一体化(IntegratedAccessandBackhaul，IAB)技术。IAB技术通过无线回传来代替光纤回传。当IAB技术和卫星通信共存时，如何保证业务质量称为急待解决的问题。
发明内容
本申请实施例提供了一种小区确定方法、装置、设备及可读存储介质，电子设备获取回传链路的连接方式，根据连接方式选择合适的小区并接入，实现提高业务质量的目的。
第一方面，本申请实施例提供一种小区确定方法，包括：
在当前小区接收来自网络节点的第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN；
根据所述第一消息执行小区选择。
第二方面，本申请实施例提供一种小区确定方法，包括：
在当前小区接收来自网络节点的第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN；
根据所述第二消息执行小区重选。
第三方面，本申请实施例提供一种小区确定方法，包括：
网络节点向位于当前小区的电子设备发送第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN。
第四方面，本申请实施例提供一种小区确定方法，包括：
网络节点向位于当前小区的电子设备发送第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN。
第五方面，本申请实施例提供一种小区确定装置，包括：
收发模块，用于在当前小区接收来自网络节点的第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN；
处理模块，用于根据所述第一消息执行小区选择。
第六方面，本申请实施例提供一种小区确定装置，包括：
收发模块，用于在当前小区接收来自网络节点的第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN；
处理模块，用于根据所述第二消息执行小区重选。
第七方面，本申请实施例提供一种小区确定装置，包括：
收发模块，用于向位于当前小区的电子设备发送第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN。
第八方面，本申请实施例提供一种小区确定装置，包括：
收发模块，用于向位于当前小区的电子设备发送第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN。
第九方面，本申请实施例提供一种电子设备，包括：
处理器、存储器及存储在所述存储器上并可在处理器上运行的计算机程序，所述处理器执行所述计算机程序时使得所述电子设备实现如上第一方面或第一方面的任意一种可行的实现方式所述的方法；或者，所述处理器执行所述计算机程序时使得所述电子设备实现如上第二方面或第二方面的任意一种可行的实现方式所述的方法。
第十方面，本申请实施例提供一种网络节点，包括：
处理器、存储器及存储在所述存储器上并可在处理器上运行的计算机程序，所述处理器执行所述计算机程序时使得所述网络节点实现如上第三方面或第三方面的任意一种可行的实现方式所述的方法；或者，所述处理器执行所述计算机程序时使得所述网络节点实现如上第四方面或第四方面的任意一种可行的实现方式所述的方法。
第十一方面，本申请实施例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计算机指令，所述计算机指令在被处理器执行时实现如上第一方面或第一方面的任意一种可行的实现方式所述的方法；或者，所述计算机指令在被处理器执行时实现如上第二方面或第二方面的任意一种可行的实现方式所述的方法。
第十二方面，本申请实施例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计算机指令，所述计算机指令在被处理器执行时实现如上第三方面或第三方面的任意一种可行的实现方式所述的方法；或者，所述计算机指令在被处理器执行时实现如上第四方面或第四方面的任意一种可行的实现方式所述的方法。
第十三方面，本申请实施例提供一种包含计算程序的计算机程序产品，所述计算机程序被处理器执行时实现如上第一方面或第一方面的任意一种可行的实现方式所述的方法；或者，所述计算机程序被处理器执行时实现如上第二方面或第二方面的任意一种可行的实现方式所述的方法。
第十四方面，本申请实施例提供一种包含计算程序的计算机程序产品，所述计算机程序被处理器执行时实现如上第三方面或第三方面的任意一种可行的实现方式所述的方法；或者，所述计算机程序被处理器执行时实现如上第四方面或第四方面的任意一种可行的实现方式所述的方法。
第十五方面，本申请实施例提供一种芯片，该芯片与电子设备中的存储器耦合，使得芯片在运行时调用存储器中存储的程序指令，进而使得电子设备执行如上第一方面或第一方面的任意一种可行的实现方式所述的方法；或者，得电子设备执行如上第二方面或第二方面的任意一种可行的实现方式所述的方法。
第十六方面，本申请实施例提供一种芯片，该芯片与网络节点中的存储器耦合，使得芯片在运行时调用存储器中存储的程序指令，进而使得网络节点执行如上第三方面或第三方面的任意一种可行的实现方式所述的方法；或者，使得网络节点执行如上第四方面或第四方面的任意一种可行的实现方式所述的方法。
本申请实施例提供的小区确定方法、装置、设备及可读存储介质，网络节点向当前小区中的电子设备发送第一消息，该第一消息用于指示回传链路中是否存在NTN。电子设备接收到第一消息后，根据第一消息执行小区选择。采用该种方案，由于电子设备能够确定出回传链路中是否存在NTN，小区选择和/或小区重选时能够依据回传链路中是否存在NTN的因素选择合适的小区接入，因此，能够提高业务质量。
附图说明
图1A为一种透明转发的卫星网络架构示意图；
图1B为一种再生转发的卫星网络架构示意图；
图2A是IAB node通过SA方式接入网络的示意图；
图2B是IAB node通过NSA方式接入网络的示意图；
图3是一个DAG的拓扑结构示意图；
图4A是本申请实施例提供的小区确定方法的一种网络架构示意图；
图4B是本申请实施例提供的小区确定方法的另一种网络架构示意图；
图4C是本申请实施例提供的小区确定方法的又一种网络架构示意图；
图5是本申请实施例提供的小区确定方法的流程图；
图6是本申请实施例提供的另一种小区确定方法的流程图
图7为本申请实施例提供的一种小区确定装置的示意图；
图8为本申请实施例提供的另一种小区确定装置的示意图；
图9为本申请实施例提供的又一种小区确定装置的示意图；
图10为本申请实施例提供的又一种小区确定装置的示意图；
图11为本申请实施例提供的一种电子设备的结构示意图；
图12为本申请实施例提供的一种网络节点的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
非地面通信网络(Non Terrestrial Network,NTN)一般采用卫星通信的方式向地面用户提供通信服务。相较于地面蜂窝网络，卫星通信具有很多独特的优点。
例如，卫星通信不受用户地域的限制，一般的陆地通信不能覆盖海洋、高山、沙漠等无法搭设通信设备的区域，或者，在人口稀少的区域不搭设通信设备。而对于卫星通信来说，由于一颗卫星即可以覆盖较大的地面，还可以围绕地球做轨道运动。因此，理论上地球上每一个角落都可以被卫星通信覆盖。
再如，卫星通信能够覆盖边远山区、贫穷落后的地区，从而使这些地区的用户享受到先进的语音通信和移动互联网技术，有利于缩小与发达地区的数字鸿沟，促进这些地区的发展。
又如，卫星通信距离远，而且，即使通信距离增大通讯成本也没有明显增加。
又如，卫星通信的稳定性高，不受自然灾害的限制。
鉴于卫星通信的上述有点，卫星通信得到飞速发展。
通信卫星按照轨道高度的不同可以分为低地球轨道(low-Earth orbit，LEO)卫星、中地球轨道(medium-Earth orbit，MEO)卫星、地球同步轨道(geostationary Earth orbit，GEO)卫星、高椭圆轨道(high elliptical orbit，HEO)卫星等等。目前阶段主要研究的是LEO和GEO。
1.LEO
低轨道卫星高度范围为500km-1500km，相应轨道周期约为1.5小时-2小时。用户设备与卫星之间单跳通信的信号传播延迟一般小于20ms。最大卫星可视时间20分钟。信号传播距离短，链路损耗少，对用户终端的发射功率要求不高。
2.GEO
地球同步轨道卫星，轨道高度为35786km，围绕地球旋转周期为24小时。用户设备与卫星之间单跳通信的信号传播延迟一般为250ms。
为了保证卫星的覆盖以及提升整个卫星通信系统的系统容量，卫星采用多波束覆盖地面，一颗卫星可以形成几十甚至数百个波束来覆盖地面；一个卫星波束可以覆盖直径几十至上百公里的地面区域。
目前3GPP考虑的卫星网络架构有两种，一种是透明转发(transparentpayload)的卫星网络架构，一种是再生转发(regenerativepayload)的卫星网络架构。
图1A为一种透明转发的卫星网络架构示意图。请参照图1A，该卫星网络架构包括：下一代无线接入网(Next Generation Radio Access Network，NG-RAN)、5G核心网(5G core network，5G CN)和数据网络(data Network)。其中，NG-RAN包括用户设备(user equipment，UE)、基站(gNB)、卫星以及地面网关(NTN gateway)等。UE与gNB之间通过新无线(new radio，NR)Uu接口(即通用用户网络接口)连接，基站与5G核心网(5G Core Network，5G CN)之间通过NG接口连接，5G CN与数据网络通过N6接口连接。其中，卫星与地面网关形成射频拉远单元(remote radio unit，RRU)。UE与gNB进行数据传输的过程中，会经过卫星和地面网关的转发，卫星和地面网关在转发过程中对数据不做协议栈处理，从而实现透明转发。
图1B为一种再生转发的卫星网络架构示意图，该卫星网络架构包括：NG-RAN、5G CN和数据网络。NG-RAN包括UE、卫星以及地面网关。UE与卫星之间通过NR Uu接口连接，卫星与5G CN之间通过NG接口连接，5G CN与数据网络通过N6接口连接。其中，卫星与地面网关之间通过运行在卫星无线接口(satelliteradiointerface，SRI)上的NG接口(即NG over SRI)连接。UE在进行数据传输时，会经过卫星的转发，卫星在转发过程中对数据会作协议栈处理，从而实现再生转发。
图1A和图1B所示架构中，卫星和地面网关之间的无线链路通常被称为馈电链路(feederlink)。UE和卫星之间的连接通常被称为服务链路(service link)。
5G新无线(new radio，NR)支持IAB技术。基于IAB技术，能够在无法铺设光纤的地方，以更低的成本和更简单的方式部署5G，通过扩展NR以支持无线回传来代替光纤回传，因此IAB技术被视为5G普及的一项重要技术。
IAB技术中，宿主节点(donor node)通过NG接口接入5G CN，IAB节点(IAB node)通过Uu口接入宿主节点，从而形成一个信号传递的链路。UE只需要接入IAB node就能接入5G网络中。IAB node可通过独立组网(Standalone，SA)方式或非独立组网(non Standalone，NAS)方式接入网络。示例性的，请参见图2A和图2B。
图2A是IAB node通过SA方式接入网络的示意图。请参照图2A，每一个支持NR接入和无线回传的中继节点称为IAB-node。在网络侧，NR回传(backhualing)的终结点被称为IAB donor。IAB donor代表一个支持IAB功能的gNB。IAB donor通过NG接口接入5G CN，如接入访问和移动性管理功能(Access and Mobility Management Function，AMF)实体、用户面功能(User Plane Function，UPF)实体等。IAB donor和其他gNB通过Xn接口连接。
图2B是IAB node通过NSA方式接入网络的示意图。请参照图2B，该非独立组网方式例如为选项(option)3，即EN-DC。也就是说，该非独立组网采用4G无线接入网和5G NR的双连接，4G基站(eNB)为主站，5G基站(gNB)为辅站。IAB donor代表一个支持IAB功能的gNB。IAB donor通过S1-U接口接入4G核心网，如移动性管理实体(Mobility Management Entity，MME)、服务PDN网关(Service-PDN gateway,S-PGW)等。IAB donor通过X2-C接口与4G网络中的宏小区基站(MeNB)连接。MeNB通过X2接口与eNB连接。MeNB通过S1接口与MME、S-PGW连接。IAB node通过LTE Uu接口与MeNB建立连接。
图2A与图2B中，在集中单元和分布单元(Centralized Unit-Distributed Unit，CU-DU)分离的结构下，IAB donor包括IAB donor CU和IABdonor DU，IAB node包括IAB node MT和IAB node DU。IABdonorCU和IABdonorDU之间通过有线网络连接。需要注意的是：IABdonorCU能够通过有线方式连接多个IABdonorDU。但是，由于CU/DU分离场景中，IAB donor DU只能接入到一个IABdonorCU，且只能属于一个gNB。因此，IABdonorDU只能通过有线方式与一个IABdonorCU建立连接，IAB node DU只能通过中继方式连接到一个IABdonorCU。
IAB node包括IAB node MT和IAB node DU。其中，IAB node DU可通过NR Uu接口服务普通UE或者下一跳IAB node，每一个IAB node与IAB donor的IAB donor CU之间存在逻辑上的F1接口。IAB node MT具备物理层、层2、非接入(Non-Access-Stratum，NAS)层的功能，能够连接到IAB node DU或者IAB donor。
IAB node通过单跳(single hop)和多跳(multiple hops)连接到一个IAB donor，构成一个根节点为IAB donor的有向非循环图(DirectedAcyclicGraph，DAG)。示例性的，请参照图4。
图3是一个DAG的拓扑结构示意图。请参照图3，该DAG拓扑结构中，IAB DU(即IAB node UD)的邻居节点或IAB donor DU的邻居节点称为子节点，IAB MT的邻居节点称为父节点。从IAB node的角度看，IAB node到子节点的方向称为下游(downstream)方向，IAB node到父节点的方向称为上游(upstream)方向。IAB node到IAB donor之间，以及IAB node之间的链路称之为回传链路。IAB donor在IAB拓扑中用于执行基站的资源、拓扑和路由管理。
请同时参照图1A、图1B、图2A和图2B，当IAB技术和卫星通信共存时，IAB node和IAB donor之间可能会存在NTN。因此，UE在执行小区选择或小区重选时，选中的驻留小区的回传链路很有可能存在NTN。，即为驻留小区提供服务的IAB node通过卫星与IAB donor建立回传链路。
然而，卫星通信网络中，尤其GEO卫星网络中，UE与卫星之间以及卫星与地面站之间的距离过大，导致UE与数据网之间的延迟比较长，一些时延敏感业务并不适合在NTN网络中使用。因此，当IAB node通过卫星与IAB donor建立回传链路时，若UE不知道IAB node和IAB donor之间通过卫星建立回传网络，而仅仅基于参考信号接收功率(Reference Signal Receiving Power，RSRP)、参考信号接收质量(Reference Signal Receiving Quality，RSRQ)执行小区选择或小区重选，确定驻留小区并接入，则很有可能该驻留小区对应的IAB node和IAB donor之间通过卫星建立回传链路。
也就是说，IAB技术和卫星通信共存时，若仅基于RSRP或RSRQ执行小区选择或小区重选，选中的驻留小区可能并不是最优小区，导致业务质量下降。
基于此，本申请实施例提供一种小区确定方法、装置、设备及可读存储介质，电子设备获取回传链路的连接方式，根据连接方式选择合适的小区并接入，实现提高业务质量的目的。
本申请实施例提供的小区确定方法，适用于IAB技术和卫星通信共存的场景，可应用与如上图1A和图1B所示的网络架构。IAB node通过单跳或多跳连接到IAB donor。示例性的，请参照图4A、图4B和图4C。
图4A是本申请实施例提供的小区确定方法的一种网络架构示意图。请参照图4A，该网络架构中，IAB node通过单跳连接到IAB donor。
图4B是本申请实施例提供的小区确定方法的另一种网络架构示意图。请参照图4B，该网络架构中， IAB node41和IAB node45之间可能还存在其他IAB node。IAB node45和IAB donor46之间通过卫星建立回传链路。IAB node41通过多跳连接到IAB donor46。IAB donor46通过NG接口与5G CN48连接。IAB node42通过单跳连接到IAB donor46。gNB43通过NG接口与5G CN48连接。eNB44通过S1接口与4G CN49连接。电子设备47用于执行小区选择或小区重选。
上述图4A和图4B针对的是透明转发场景。本申请实施例还支持再生转发场景。图4C是本申请实施例提供的小区确定方法的又一种网络架构示意图。该架构中，IAB donor设置在卫星上。
另外，再生转发场景中，IABdonor还可以设置在地面网关和5GCN之间。需要说明的是，对于支持再生转发的NTN网络，IABdonorCU与IABdonorDU可以通过卫星链路连接，即IABdonorCU设置在地面网关和5G CN之间，IABdonorDU设置在卫星上。
请参照图4A-图4C，电子设备47也称为UE、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
电子设备47可以是WLAN中的站点(STATION，STA)，可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备等。
在本申请实施例中，电子设备47可以部署在陆地上，包括室内或室外、手持、穿戴或车载；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)。
在本申请实施例中，电子设备47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)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定，在本申请实施例中，电子设备47还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
请参照图4A-图4C，本申请实施例中，网络节点可以是IAB node41、IAB node42，也可以是不支持IAB技术网络节点，如gNB43、eNB44等。当网络节点为不支持IAB技术的网络节点时，网络节点例如为长期演进(long-term evolution，LTE)系统、下一代(移动通信系统)(next radio，NR)系统或者授权辅助接入长期演进(authorized auxiliary access long-term evolution，LAA-LTE)系统中的演进型基站(evolutional node B，eNB或e-NodeB)宏基站、微基站(也称为“小基站”)、微微基站、接入站点(access point，AP)、传输站点(transmission point，TP)或新一代基站(new generation Node B，gNodeB)等。
在本申请实施例中，网络节点用于与电子设备47通信，可以是WLAN中的接入点(Access Point，AP)，GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及NR网络中的网络设备(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
在本申请实施例中，网络节点能够为小区提供服务，电子设备47通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络节点进行通信，该小区可以是网络节点(例如基站)对应的 小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
本申请实施例的技术方案可以应用于卫星通信和IAB技术共存的通信系统，如5G通信系统、4G向5G演进过程中的各种通信系统。演进系统包括独立组网模式的通信系统以及非独立组网模式的通信系统，如EN-DC(选项3)、NE-DC(选项4)和NGEN-DC(选项7)构架等。
应理解，本文中术语“系统”和“网络”在本文中常可被互换使用。本文中术语“和/或”，仅仅是一种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。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
图5是本申请实施例提供的小区确定方法的流程图。本实施例是从电子设备与网络节点交互的角度进行描述。本实施例用于小区选择，本实施例包括：
501、网络节点向位于当前小区的电子设备发送第一消息。
相应的，电子设备在当前小区接收来自网络节点的第一消息。
所述第一消息用于指示当前小区的回传链路中是否存在NTN。其中，回传链路时回传接入一体化IAB节点和宿主节点之间的链路。
示例性的，请参照图4B，网络节点为IAB node、eNB或个NB。电子设备开机或从盲区进入由网络节点提供服务的当前小区时，网络节点向电子设备发送第一消息。
502、电子设备根据所述第一消息执行小区选择。
本申请实施例中，小区选择(cell selection)也称为小区初选、初始小区选择等，是指电子设备开机或从盲区进入网络节点的覆盖区域后，寻找公共陆地移动网(Public Land Mobile Network，PLMN)允许的所有频点，并结合第一消息选择合适的小区驻留的过程。例如，若第一消息指示当前小区的回传链路中存在NTN，电子设备的业务类型为时延敏感业务，则电子设备确定当前小区为非驻留小区。再如，若第一消息指示当前小区的回传链路中存在NTN，电子设备的业务对时延不敏感，当当前小区满足第一准则时，电子设备确定当前小区非驻留小区。其中，第一准则也称为S准则，用来指示小区选择是当前小区的RSRP和RSRQ等满足的条件。
本申请实施例提供的小区确定方法，网络节点向当前小区中的电子设备发送第一消息，该第一消息用于指示当前小区的回传链路中是否存在NTN。电子设备接收到第一消息后，根据第一消息执行小区选择。采用该种方案，由于电子设备根据第一消息能够确定出当前小区的回传链路中是否存在NTN，小区选择时能够依据回传链路中是否存在NTN的因素选择合适的小区接入，因此，能够提高业务质量。
上述实施例中，小区选择过程中需要对将要选择的小区进行测量，以便进行信道质量评估，判断是否符合驻留条件。当符合驻留条件时，结合第一消息确定是否驻留。例如，若当前小区符合第一准则，则结合第一消息确定是否驻留到当前小区。下面，对小区选择过程进行详细说明。
本申请实施例中，电子设备开机或者从盲区进入覆盖区域时，电子设备将寻找PLMN允许的所有频点，并选择合适的小区驻留。小区选择类型包括初始小区选择和基于存储信息的小区选择。小区选择过程中，电子设备基于存储信息执行小区选择。存储信息是指：电子设备已经存储一些载波频率相关信息，同时也可能存储一些小区的参数信息，例如，从先前收到的测量控制信息或是先前驻留或检测到的小区中得到小区参数。小区选择过程中，优先从存储信息中选择合适的小区，一旦一个合适的小区出现，则电子设备会选择该小区并驻留。如果存储了相关信息的小区都不合适，则电子设备将发起初始的小区选择。
本申请实施例中，电子设备对当前小区进行测量，得到测量结果。根据测量结果判断当前小区是否符合驻留条件，若当前小区符合驻留条件，则进一步的结合第一消息确定是否驻留到当前小区。其中，蜂窝网络中小区选择的准则被称为第一准则，第一准侧也称为S准则，若当前小区符合第一准则时，则电子设备认为当前小区符合驻留条件。
当前小区符合第一准则，是指当前小区的RSRP和RSRQ的测量量同时满足如下条件：
Srxlev＞0 and Squal＞0。
Srxlev＝Q rxlevmeas-(Q rxlevmin+Q rxlevminoffset)-P compensation-Qoffset temp
Squal＝Q qualmeas-(Q qualmin+Q qualminoffset)-Qoffset temp
公式中各参数的含义如如下表1所示。
表1
Figure PCTCN2021092215-appb-000001
Figure PCTCN2021092215-appb-000002
小区选择过程中，当当前小区满足第一准则时，电子设备结合第一消息确定是否接入当前小区，即是否将当前小区作为驻留小区。第一消息用于指示当前小区的回传链路中是否存在NTN。
一种方式中，当所述第一消息携带指示信息时，所述回传链路中存在NTN；当所述第一消息未携带指示信息时，所述回传链路中不存在NTN。
该种方式中，当当前小区的回传链路中不存在NTN且网络节点支持IAB技术时，网络节点不发送第一消息，电子设备未接收到第一消息，则默认为当前小区提供服务的网络节点和宿主节点之间的回传链路中不存在NTN。或者，网络节点发送第一消息，该第一消息未携带指示信息，电子设备接收到第一消息后，确定出回传链路中不存在NTN。当回传链路中存在NTN时，网络节点发送携带指示信息的第一消息，电子设备接收到该第一消息后，确定出回传链路中存在NTN。
另一种方式中，第一消息携带回传链路的指示信息；当所述回传链路的指示信息为1时，所述回传链路中存在NTN，当所述回传链路的指示信息为0时，所述回传链路中不存在NTN；或者，当所述回传链路的指示信息为0时，所述回传链路中存在NTN，当所述回传链路的指示信息为1时，所述回传链路中不存在NTN。
该种方式中，指示信息例如为1比特(bit)，1表示回传链路中存在NTN，0表示回传链路中不存在NTN。或者，0表示回传链路中存在NTN，1表示回传链路中不存在NTN。
再一种方式中，所述第一消息携带回传链路的时延；当所述时延大于预设时延时，所述回传链路中存在NTN；当所述时延小于或等于预设时延时，所述回传链路中不存在NTN。
时延可以是具体的时延长度，例如20毫秒(ms)、40ms等；也可以是时延等级，举例来说，根据时延长度将时延划分为两个等级：第一等级表示时延大于或等于20ms，用0表示，第二等级表示时延小于20ms，用1表示。这样一来，用1个比特就能够表示时延信息，一定程度上减少了信令开销。
又一种方式中，当所述第一消息携带NTN类型时，所述回传链路中存在NTN；当所述第一消息未携带NTN类型时，所述回传链路中不存在NTN。
该种方式中，NTN类型例如为2bit，NTN类型例如为GEO、LEO等。
采用该种方案，网络节点能够灵活的通过指示信息、时延或NTN类型向电子设备指示当前小区的回传链路中是否存在NTN。
虽然上述是以指示信息、时延或NTN类型为例，对第一消息进行说明。然而，本申请实施例并不以此为限制，其他可行的实现方式中，第一消息也可以携带指示信息、时延或NTN类型中的一个或多个。例如，第一消息携带NTN类型和指示信息，此时，电子设备根据指示信息确定出回传链路中存在NTN，进一步的根据NTN类型确定出回传链路中的NTN是LEO或GEO等。
可选的，上述实施例中，电子设备根据所述第一消息执行小区选择时，当所述回传链路中存在NTN时，确定所述当前小区为非驻留小区；当所述回传链路中不存在NTN时，确定所述当前小区为驻留小区。
请参照图4B，一个实施例中，小区选择过程中，当前小区满足第一准则，若网络节点为IAB node41，第一消息携带回传链路中是否存在NTN的指示信息、回传链路的时延、回传链路的NTN类型中的一个或多个，则电子设备根据第一消息能够确定出IAB node41和IAB donor46之间的回传链路中存在NTN。此时，电子设备确定当前小区为非驻留小区。
若网络节点为IAB node42，当前小区满足第一准则，若约定IAB node 42未发送第一消息隐式指示由IAB node 42提供服务的当前小区的回传链路中不存在NTN，则电子设备确定当前小区的回传链路中不存在NTN，并将当前小区作为驻留小区。另外，IAB node 42也可以发送第一消息，该第一消息明确指示由IAB node 42提供服务的当前小区的回传链路中不存在NTN，则电子设备接收到第一消息后，确定当前小区的回传链路中不存在NTN，并将当前小区为驻留小区。
若网络节点为eNB44或gNB43，则电子设备确定出不存在IAB技术相关的回传链路。
再请参照图4B，另一个实施例中，小区选择过程中，当前小区满足第一准则，若网络节点为IAB node41，第一消息携带回传链路的时延。电子设备确定出回传链路的时延小于或等于预设时延时，则确定当前小区为驻留小区。若电子设备确定出回传链路的时延大于预设时延时，则确定当前小区为非驻留小区
再一个实施例中，请参照图4B，小区选择过程中，当前小区满足第一准则，第一消息指示回传链路中存在NTN，则电子设备确定设备特性。之后，根据电子设备的设备特性，执行小区选择。确定设备特性的过程中，电子设备根据业务类型和/或所述电子设备的终端类型确定设备特性。当所述电子设备的时延敏感特性指示所述电子设备为时延不敏感设备时，确定所述当前小区为驻留小区；当所述电子设备的时延敏感特性指示所述电子设备为时延敏感设备时，确定所述当前小区为非驻留小区
示例性的，终端类型例如为工业传感器类型的终端等。业务类型例如为时延敏感业务、时延不敏感业务。时延敏感业务例如为增强移动带宽(Enhanced Mobile Broadband，EMBB)业务、语音业务、可穿戴(wearable)业务等。
以网络节点为IAB node41为例，当前小区满足第一准则且当前小区的回传链路中存在NTN，若电子设备的终端类型指示该电子设备为工业传感器类型的终端，该种类型的电子设备对时延不敏感。因此，电子设备确定当前小区为驻留小区。
若电子设备的业务类型指示该电子设备注册的业务为时延敏感业务，第一消息指示当前小区的回传链路中的NTN类型为GEO类型。由于时延敏感业务不适用于GEO等长时延的回传链路传输。因此，电子设备确定当前小区为非驻留小区。
又一个实施例中，当所述第一消息指示所当前小区的回传链路的NTN类型时，NTN类型例如为GEO、LEO等。此时，电子设备确定所述当前小区为非驻留小区。
可选的，上述实施例中，当网络节点为IAB node时，第一消息是由宿主节点发送给网络节点、并由网络节点广播给电子设备的。例如，请参照图4A，单跳场景中，IAB donor的IAB donor CU的无线资源控制(Radio Resource Control，RRC)层生成第一消息，之后，IAB donor通过F1接口向IAB node发送第一消息，IAB node接收到第一消息后，广播该第一消息。再如，请参照图4B，当网络节点为IAB node41时，IAB donor46的IAB donor CU的RRC层生成第一消息，之后，通过F1接口向IAB node41发送第一消息。IAB node41接收到第一消息后，广播该第一消息。
可选的，上述实施例中，第一消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块1(system information block，SIB1)、SIBx、主系统信息块(master information block，MIB)。
采用该种方案，可通过不同信令灵活的发送第一消息。
图6是本申请实施例提供的另一种小区确定方法的流程图。本实施例是从电子设备与网络节点交互的角度进行描述。本实施例用于小区重选，本实施例包括：
601、网络节点向位于当前小区的电子设备发送第二消息。
所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN。其中，回传链路时回传接入一体化IAB节点和宿主节点之间的链路。例如，当当前小区是由IAB节点提供服务的小区时，当前小区的回传链路中可能存在NTN。当邻居小区是由IAB节点提供服务的小区时，邻居小区的回传链路中可能存在NTN。
602、电子设备根据所述第二消息执行小区重选。
本申请实施例中，小区重选(cell re selection)是指电子设备驻留到当前小区后，在空闲模式(RRC_IDLE state)或非激活模式(RRC_INACTIVE state)下通过检测邻居小区和当前小区的信号质量，并结合第二消息以选择一个更好的小区提供服务信号的过程。例如，若第二消息指示当前小区的回传链路中存在NTN，邻居小区的回传链路中不存在NTN，即使邻居小区的RSRP不如当前小区的RSRP，若电子设备的业务类型为时延敏感业务，则电子设备执行小区重选选中邻居小区并接入。
本申请实施例提供的小区确定方法，网络节点向当前小区中的电子设备发送第二消息，该第二消息用于当前小区或邻居小区的回传链路中是否存在NTN。电子设备接收到第二消息后，根据第一消息执行 小区选重选。采用该种方案，由于电子设备根据第二消息能够确定出邻居小区和/或当前小区的回传链路中是否存在NTN，小区重选时能够依据回传链路中是否存在NTN的因素重新选择合适的小区接入，因此，能够提高业务质量。
可选的，上述实施例中，电子设备根据所述第二消息执行小区重选时，从所述当前小区和/或所述当前小区的邻居小区中确定出候选小区得到候选小区集合。之后，电子设备根据所述第二消息，对所述候选小区集合中的候选小区执行小区重选。
可选的，网络节点可通过回传链路的指示信息、时延或NTN类型中的一个或多个指示回传链路中是否存在NTN。
一种方式中，对于候选小区集合中的每一个候选小区，当第二消息携带该候选小区的回传链路的指示信息时，所述候选小区的回传链路中存在NTN；当所述第二消息未携带指示信息时，所述候选小区的回传链路中不存在NTN。
该种方式中，当候选小区的回传链路中不存在NTN时，第一消息未携带该候选小区的回传链路的指示信息，电子设备接收到第一消息后，确定出回传链路中不存在NTN。当网络节点发送携带指示信息的第一消息时，电子设备接收到该第一消息后，确定出回传链路中存在NTN。
另一种方式中，对于候选小区集合中的每一个候选小区，所述第二消息携带候选小区的回传链路的指示信息；当所述回传链路的指示信息为1时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为0时，所述候选小区的回传链路中不存在NTN；或者，当所述回传链路的指示信息为0时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为1时，所述候选小区的回传链路中不存在NTN。
该种方式中，每个候选小区的指示信息例如为1比特(bit)，1表示回传链路中存在NTN，0表示回传链路中不存在NTN。或者，0表示回传链路中存在NTN，1表示回传链路中不存在NTN。
再一种方式中，所述第二消息携带所述候选小区的回传链路的时延；当所述时延大于预设时延时，所述候选小区的回传链路中存在NTN；当所述时延小于或等于预设时延时，所述候选小区的回传链路中不存在NTN。
该种方式中，时延可以是具体的时延长度，例如20毫秒(ms)、40ms等；也可以是时延等级，举例来说，根据时延长度将时延划分为两个等级：第一等级表示时延大于或等于20ms，用0表示，第二等级表示时延小于20ms，用1表示。这样一来，对于每个候选小区，用1个比特就能够表示时延信息，一定程度上减少了信令开销。
又一种方式中，当所述第二消息携带NTN类型时，所述候选小区的回传链路中存在NTN；当所述第二消息未携带NTN类型时，所述候选小区的回传链路中不存在NTN。
该种方式中，NTN类型例如为2bit，NTN类型例如为GEO、LEO等。
采用该种方案，网络节点能够灵活的通过指示信息、时延或NTN类型向电子设备指示当前小区和或邻居小区的回传链路中是否存在NTN。
虽然上述是以指示信息、时延或NTN类型为例，对第二消息进行说明。然而，本申请实施例并不以此为限制，其他可行的实现方式中，第二消息也可以携带指示信息、时延或NTN类型中的一个或多个。例如，第二消息携带NTN类型和指示信息，此时，电子设备根据指示信息确定出回传链路中存在NTN，进一步的根据NTN类型确定出回传链路中的NTN是LEO或GEO等。
上述实施例中，小区重选过程中需要对将要选择的小区进行测量，以便进行信道质量评估，判断是否符合驻留条件。当符合驻留条件时，结合第二消息确定是否驻留。例如，电子设备驻留在当前小区，若邻居小区的信号质量更优，则结合第二消息确定是否驻留到邻居小区。下面，对本申请实施例提供的小区重选方法进行详细说明。
小区重选分为同频小区重选和异频小区重选。同频小区重选，可以解决无线覆盖问题，异频小区重选，不仅可以解决无线覆盖问题，还可以通过设定不同频点的优先级来实现负载均衡。
小区重选过程中，在空闲模式或非激活模式下电子设备通过检测邻居小区和当前小区的信号质量，结合第二消息以选择一个更好的小区并驻留。电子设备通过小区选择过程成功驻留到当前小区后，将持续对当前小区进行小区测量，并决定是否启动邻区测量。邻区测量过程中，当邻居小区的信号质量及电平满足第一准则且满足一定重选判决准则时，电子设备将放弃当前小区、驻留到邻居小区。其中，重选判决准则例如为第二准则，该第二准则也称之为R准则等。
电子设备的无线资源控制(Radio Resource Control，RRC)层根据RSRP和RSRQ的测量结果计算Srxlev/Squal。具体可参见上述小区选择中关于第一准则的描述，此处不再赘述。之后，电子设备根据计算出的Srxlev/Squal判断是否启动邻区测量。
若邻区测量为同频测量，则电子设备对比Srxlev和S IntraSearchP，以及Squal和S IntraSearchQ。其中，S IntraSearchQ和S IntraSearchP为同频测量启动门限。
若邻区测量为异频或异系统测量，则电子设备对比Srxlev和S nonIntraSearchP，以及Squal和S nonIntraSearchQ。其中，S nonIntraSearchQ和S nonIntraSearchP为异频或异系统测量启动门限。
是否启动同频测量或异频测量的判决过程如表2所示。
表2
Figure PCTCN2021092215-appb-000003
当电子设备满足启动同频测量的条件时，电子设备对当前小区的邻居小区进行同频测量得到候选小区集合。当电子设备满足异频测量的条件时，电子设备对当前小区的邻居小区进行异频测量得到候选小区集合。之后，电子设备按照一定的准则(如表3所示)对候选小区集合中的小区进行排序，根据排序选择合适的小区并驻留。
表3
Figure PCTCN2021092215-appb-000004
表3中，Treselection RAT表示时间间隔，Thresh X,HighQ、Thresh X,HighP是网络侧广播给电子设备的。
小区重选过程中，如果多个不同优先级的邻居小区同时满足重选准则，则高优先级频率优先于低优先级频率，高优先级RAT优先于低优先级RAT。
上述表3中，当当前小区和各邻居小区的频率是同频或同等优先级的频率时，当前小区和邻居小区按照第二准则排序。第二准则，即R准则如下：
当前小区：Rs＝Q meas,s+Q hyst-Qoffset temp
邻居小区：Rn＝Q meas,n-Qoffset–Qoffset temp。
公式中各参数的含义如表4所示：
表4
Figure PCTCN2021092215-appb-000005
Figure PCTCN2021092215-appb-000006
上述公式中，Q meas,s表示当前小区的RSRP测量量，Q meas,n表示邻居小区的RRSP测量量。
本申请实施例中，电子设备驻留到当前小区后，持续对当前小区进行测量得到测量结果。之后，电子设备根据测量结果判断是否启动邻区测量，判断依据如表2所示。当测量结果指示启动邻区测量时，电子设备对当前小区的邻居小区进行测量。启动邻区测量包括启动同频测量、启动异频或异系统测量等。
在启动测量的邻居小区中，如果重选目标频率是同频或同等优先级的频率，按照第二准则对当前小区和邻居小区排序，并根据排序结果得到候选小区集合。重选目标频率为同频或同等优先级的频率是指：邻居小区的频率与当前小区的频率相同；或者，邻居小区的频率的优先级和所述当前小区的频率的优先级相同。电子设备按照第二准则对当前小区和邻居小区排序得到候选小区集合后，通过最佳小区范围(rangeToBestCell)进一步选择驻留小区。通过最佳小区范围(rangeToBestCell)进一步选择驻留小区是指：选择与具有最好信号质量的小区的R值相差rangeToBestCell范围内的所有候选小区，得到候选小区集合。
之后，电子设备根据第二消息从候选小区集合中，选择合适的小区作为驻留小区。选择过程中，优先选择不包含NTN、且信号质量值满足门限的beam数量最多的候选小区。若所述候选小区集合中各候选小区的回传链路均存在NTN，则从所述候选小区集合中确定出信号质量值满足门限的beam最多的候选小区作为驻留小区。
例如，当前小区的回传链路中包含NTN，候选小区A的回传链路中不包含NTN，且候选小区A包含4个beam，该4个beam的信号质量值均超过门限。候选小区B的回传链路中不包含NTN，虽然候选小区B包含6个beam，但该6个beam中仅有2个beam的信号质量超过门限。因此，电子设备选择候选小区A作为驻留小区。
采用该种方案，通过同频测量中选择合适的驻留小区，实现提高业务质量的目的。
小区重选过程中，IAB节点为一个或多个，所述网络节点为一个或多个IAB节点中的一个IAB节点，所述当前小区是由发送所述第二消息的IAB节点提供服务的小区。
示例性的，请参照图4B，网络节点为IAB node41，当前小区的回传链路中存在NTN，由于为邻居小区提供服务的IAB node42的回传链路中不存在NTN，因此，电子设备选择邻居小区作为驻留小区。
若网络节点为IAB node42，当前小区的回传链路中不存在NTN，由于为邻居小区提供服务的IAB node41的回传链路中存在NTN，因此，电子设备选择当前小区作为驻留小区。
小区重选过程中，当为当前小区提供服务的网络节点是IAB node时，若当前小区或邻居小区的回传链路中存在NTN，则第二消息携带用于指示所述回传链路中是否存在NTN的指示信息、所述回传链路的时延、所述回传链路的NTN类型中的一个或多个。其中，对于每一条回传链路，如当前小区的回传链路或邻居小区的回传链路，用于指示该回传链路中是否存在NTN的指示信息例如为1比特(bit)，1表示存在NTN，0表示不存在NTN。NTN的类型例如为2bit，NTN类型例如为GEO、LEO等。时延可以是具体的时延长度，例如20毫秒(ms)、40ms等；也可以是时延等级，举例来说，根据时延长度将时延划分为两个等级：第一等级表示时延大于或等于20ms，用0表示，第二等级表示时延小于20ms，用1表示。这样一来，用1个比特就能够表示时延信息，一定程度上减少了信令开销。
采用该种方案，网络节点能够灵活的向电子设备指示当前小区或邻居小区的回传链路中是否存在NTN。
小区重选过程中，IAB节点为一个或多个，网络节点也可以是不支持IAB技术，例如，请参照图4B，网络节点为gNB43或eNB44。当前小区是由不支持IAB技术的网络节点提供服务的小区。该种情况下，当前小区的回传链路中不存在NTN，但是邻居小区的回传链路存在NTN。此时，第二消息指示邻居小区的回传链路中是否存在NTN，所述邻居小区是由一个或多个IAB节点中的IAB节点提供服务的小区。
下面，用几个实施例对小区重选过程进行详细说明。
一个实施例中，电子设备对当前小区进行测量，根据测量结果判断是否启动邻区测量。若启动邻区测量，且重选目标频率是同频或同等优先级的频率，电子设备按照第二准则对当前小区和邻居小区进行排序，通过最佳小区范围(rangeToBestCell)从排序结果中进一步选择驻留小区得到候选小区集合。重选过程中，电子设备根据所述第二消息，从所述候选小区集合中确定出回传链路中不存在NTN、且信号质量值满足门限的beam最多的候选小区作为所述驻留小区。若所述第二消息指示所述候选小区集合中各候选小区的回传链路均存在NTN，则从所述候选小区集合中确定出信号质量值满足门限的beam最多的候选小区作为驻留小区。
示例性的，请参照图4B，小区重选过程中，若网络节点为IAB node41，由IAB node42提供服务的邻居小区、由gNB43提供服务的邻居小区、由eNB44提供服务的邻居小区和当前小区是同频小区或同优先级频率的小区。电子设备根据第二消息确定出IAB node41和IAB donor46之间的回传链路中存在NTN。而IAB node42和IAB donor46之间的回传链路中不存在NTN，且由IAB node42提供服务的邻居小区信号质量超过门限的beam数量多于由gNB43或eNB44提供服务的邻居小区。此时，电子设备确定由IAB node42提供服务的邻居小区为驻留小区。
若网络节点为IAB node42，由IAB node41提供服务的邻居小区、由gNB43提供服务的邻居小区、由eNB44提供服务的邻居小区和当前小区是同频小区或同优先级频率的小区。电子设备根据第二消息确定出IAB node41和IAB donor46之间的回传链路中存在NTN。而IAB node42和IAB donor46之间的回传链路中不存在NTN。也就是说，当前小区的回传链路中不存在NTN，邻居小区的回传链路中存在NTN。此时，若由gNB43提供服务的邻居小区信号质量超过门限的beam数量多于由IAB node42或由eNB44提供服务的邻居小区。此时，电子设备确定由gNB43提供服务的邻居小区为驻留小区。
另外，倘若候选小区集合中的每个候选小区的回传链路均存在NTN，则电子设备选择信号质量值满足门限的beam最多的候选小区作为驻留小区。举例来说，一个候选小区有5个beam，其中4个beam的信号质量满足门限，另一个候选小区有6个beam，其中2个beam的信号质量满足门限，则电子设备确定有5个beam的候选小区为驻留小区。
另一个实施例中，电子设备对当前小区进行测量，根据测量结果判断是否启动邻区测量。若启动邻区测量，且重选目标频率是同频或同等优先级的频率，电子设备按照第二准则对当前小区和邻居小区排序，通过最佳小区范围(rangeToBestCell)从排序结果中进一步选择驻留小区得到候选小区集合。重选过程中，电子设备根据所述第二消息，从所述候选小区集合中确定出回传链路中时延最短的候选小区作为所述驻留小区。
示例性的，若候选小区集合中的每个候选小区的回传链路中均包含NTN，则电子设备将回传链路的时延最短的候选小区作为驻留小区。
另外，电子设备还可以将时延和beam数量结合起来确定驻留小区。由网络配置采用单独依靠时延的方式确定驻留小区或者采用结合二者的方式确定驻留小区。结合二者确定驻留小区时，若候选小区集合中的每个候选小区的回传链路均存在NTN，则电子设备选择信号质量值满足门限的beam最多、且时延最小的候选小区作为驻留小区。例如，有3个候选小区，该3个候选小区的时延依次为20ms、20ms、80ms。时延为20毫秒的两个候选小区的beam数量分别为6个和4个，但是信号质量值满足门限的beam分别为2个、4个。时延为80ms的候选小区的beam为6个，其中，有3个beam的信号质量满足门限。此时，电子设备确定时延为20、beam数量为4个候选小区为驻留小区。
又一个实施例中，电子设备对当前小区进行测量，根据测量结果判断是否启动邻区测量。若启动邻区测量，且重选目标频率是同频或同等优先级的频率，电子设备按照第二准则对当前小区和邻居小区排序，通过最佳小区范围(rangeToBestCell)从排序结果中进一步选择驻留小区得到候选小区集合后，当候选小区集合中的各候选小区的回传链路中均存在NTN时，电子设备确定电子设备自身的设备特性，并根据所述电子设备的设备特性，执行小区重选。电子设备确定电子设备的设备特性时，可根据电子设备的业务类型和/或终端类型等确定设备特性。
当所述设备特性指示所述电子设备为时延不敏感设备时，从所述候选集合中确定出信号质量值满足门限的beam最多的候选小区作为所述驻留小区；当所述设备特性指示所述电子设备为时延敏感设备时，确定所述候选小区集合中的候选小区为非驻留小区。
例如，请参照图4B，若网络节点为IAB node41，则电子设备根据第二消息确定出IAB node41和IAB donor46之间的回传链路存在NTN。由eNB 44或gNB43提供服务的邻居小区的回传链路中不存在NTN。之后，电子设备根据终端类型、业务类型等确定是否驻留到邻居小区。电子设备的业务类型为时延敏感业务，电子设备驻留在由IAB node41提供服务的当前小区中，若由gNG43提供服务的邻居小区的RSRP满足驻留条件，即使邻居小区的RSRP比当前小区的RSRP低，经过小区重选后电子设备驻留到邻居小区，从而保证业务时延。
再如，若电子设备的为时延不敏感设备，则电子设备驻留在由IAB node42提供服务的当前小区中，若由IAB node41提供服务的邻居小区满足第一准则，则经过小区重选后电子设备驻留到邻居小区。
又如，若网络节点为eNB44，电子设备根据第二消息确定出由IAB node41提供服务的邻居小区的回传链路中存在NTN，而由gNB43以及IAB node42提供服务的邻居小区的回传链路中不存在NTN。之后，电子设备根据终端类型、业务类型等确定是否驻留到邻居小区。
同理，小区重选过程中，若网络节点为gNB43，电子设备根据第二消息确定出由IAB node41提供 服务邻居小区的回传链路中存在NTN，而由eNB44、IAB node42提供服务的邻居小区的回传链路中不存在NTN。之后，电子设备根据终端类型、业务类型等确定是否驻留到邻居小区。
再一个实施例中，电子设备确定出候选小区集合后，当所述第二消息指示所述候选小区集合中各候选小区的回传链路的NTN类型时，从所述候选小区集合中确定出信号质量值满足门限的beam最多的候选小区作为驻留小区。例如，电子设备驻留在由IAB node41提供服务的当前小区中，候选小区包括当前小区和一个邻居小区，当第二消息指示各候选小区的回传链路中均存在NTN时，若邻居小区信号质量值满足门限的beam多于当前小区，则电子设备驻留到邻居小区。
可选的，上述实施例中，当网络节点为IAB node时，第二消息是由宿主节点发送给网络节点、并由网络节点广播给电子设备的。例如，请参照图4B，当网络节点为IAB node41时，即当前小区是由IAB node41提供服务的小区时，IAB donor46的IAB donor CU的RRC层生成第二消息，之后，通过F1接口向IAB node41发送第二消息。IAB node41接收到第二消息后，广播该第二消息。
可选的，上述实施例中，第二消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块1(system information block，SIB1)、SIBx、主系统信息块(master information block，MIB)。
采用该种方案，可通过不同信令灵活的发送第二消息。
下述为本申请装置实施例，可以用于执行本申请方法实施例。对于本申请装置实施例中未披露的细节，请参照本申请方法实施例。
图7为本申请实施例提供的一种小区确定装置的示意图。该小区确定装置700集成在上述的电子设备上以使得电子设备实现上述的小区选择方法，该小区确定装置700包括：收发模块71、处理模块72。
收发模块71，用于在当前小区接收来自网络节点的第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN；
处理模块72，用于根据所述第一消息执行小区选择。
一种可行的实现方式中，当所述第一消息携带指示信息时，所述回传链路中存在NTN；
当所述第一消息未携带指示信息时，所述回传链路中不存在NTN。
一种可行的实现方式中，所述第一消息携带回传链路的指示信息；当所述回传链路的指示信息为1时，所述回传链路中存在NTN，当所述回传链路的指示信息为0时，所述回传链路中不存在NTN；或者，当所述回传链路的指示信息为0时，所述回传链路中存在NTN，当所述回传链路的指示信息为1时，所述回传链路中不存在NTN。
一种可行的实现方式中，所述第一消息携带回传链路的时延；
当所述时延大于预设时延时，所述回传链路中存在NTN；
当所述时延小于或等于预设时延时，所述回传链路中不存在NTN。
一种可行的实现方式中，当所述第一消息携带NTN类型时，所述回传链路中存在NTN；
当所述第一消息未携带NTN类型时，所述回传链路中不存在NTN。
一种可行的实现方式中，所述处理模块72，用于当所述回传链路中存在NTN时，确定所述当前小区为非驻留小区；当所述回传链路中不存在NTN时，确定所述当前小区为驻留小区。
一种可行的实现方式中，所述处理模块72，用于当所述回传链路中存在NTN时，确定电子设备的设备特性；根据所述电子设备的设备特性，执行小区选择。
一种可行的实现方式中，所述处理模块72根据所述电子设备的设备特性，执行小区选择时，用于当所述设备特性指示所述电子设备为时延不敏感设备时，确定所述当前小区为驻留小区；当所述设备特性指示所述电子设备为时延敏感设备时，确定所述当前小区为非驻留小区。
一种可行的实现方式中，所述处理模块72，用于当所述当前小区满足第一准则时，根据所述第一消息对所述当前小区执行小区选择，所述第一准则是所述当前小区的参考信号接收功率RSRP和参考信号接收质量RSRQ满足的条件。
一种可行的实现方式中，所述网络节点为IAB节点，所述当前小区是由所述IAB节点提供服务的小区。
一种可行的实现方式中，所述收发模块71，用于接收来自宿主节点、经由所述IAB节点转发的所述第一消息，所述宿主节点为所述IAB节点的宿主节点。
一种可行的实现方式中，所述第一消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
图8为本申请实施例提供的另一种小区确定装置的示意图。该小区确定装置800集成在上述的电子 设备上以使得电子设备实现上述的小区重选方法，该小区确定装置800包括：收发模块81、处理模块82。
收发模块81，用于在当前小区接收来自网络节点的第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN；
处理模块82，用于根据所述第二消息执行小区重选。
一种可行的实现方式中，所述处理模块82，用于从所述当前小区和/或所述当前小区的邻居小区中确定出候选小区得到候选小区集合；根据所述第二消息，对所述候选小区集合中的候选小区执行小区重选。
一种可行的实现方式中，当所述第二消息携带指示信息时，所述候选小区的回传链路中存在NTN；
当所述第二消息未携带指示信息时，所述候选小区的回传链路中不存在NTN。
一种可行的实现方式中，所述第二消息携带候选小区的回传链路的指示信息；当所述回传链路的指示信息为1时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为0时，所述候选小区的回传链路中不存在NTN；或者，当所述回传链路的指示信息为0时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为1时，所述候选小区的回传链路中不存在NTN。
一种可行的实现方式中，所述第二消息携带所述候选小区的回传链路的时延；当所述时延大于预设时延时，所述候选小区的回传链路中存在NTN；当所述时延小于或等于预设时延时，所述候选小区的回传链路中不存在NTN。
一种可行的实现方式中，当所述第二消息携带NTN类型时，所述候选小区的回传链路中存在NTN；当所述第二消息未携带NTN类型时，所述候选小区的回传链路中不存在NTN。
一种可行的实现方式中，所述处理模块82，用于根据所述第二消息，从所述候选小区集合中确定出回传链路中不存在NTN、且信号质量值满足门限的beam最多的候选小区作为所述驻留小区；若所述候选小区集合中各候选小区的回传链路均存在NTN，则从所述候选小区集合中确定出信号质量值满足门限的beam最多的候选小区作为驻留小区。
一种可行的实现方式中，所述处理模块82，用于根据所述第二消息，从所述候选小区集合中确定回传链路时延最短的候选小区作为驻留小区。
一种可行的实现方式中，所述处理模块82，用于当所述第二消息携带所述候选小区集合中各候选小区的回传链路的NTN类型时，从所述候选小区集合中确定出信号质量值满足门限的beam最多的候选小区作为驻留小区。
一种可行的实现方式中，所述处理模块82，用于当所述第二消息指示候选小区的回传链路中存在NTN时，确定电子设备的设备特性；根据所述电子设备的设备特性，执行小区重选。
一种可行的实现方式中，所述处理模块82根据所述电子设备的设备特性，执行小区重选时，用于当所述设备特性指示所述电子设备为时延不敏感设备时，从所述候选集合中确定出信号质量值满足门限的beam最多的候选小区作为所述驻留小区；当所述设备特性指示所述电子设备为时延敏感设备时，确定所述候选小区集合中的候选小区为非驻留小区。
一种可行的实现方式中，所述处理模块82从所述当前小区和/或所述当前小区的邻居小区中确定出候选小区得到候选小区集合，时，用于对所述当前小区进行小区测量，得到测量结果；根据所述测量结果判断是否启动邻区测量；当所述测量结果指示启动邻区测量时，对所述当前小区的邻居小区进行邻区测量，得到所述候选小区集合，其中，所述邻居小区的频率与所述当前小区的频率相同，或者，所述邻居小区的频率的优先级和所述当前小区的频率的优先级相同。
一种可行的实现方式中，所述网络节点为一个或多个IAB节点中的一个IAB节点，所述当前小区是由发送所述第二消息的IAB节点提供服务的小区，所述邻居小区是所述一个或多个IAB节点中，除发送所述第二消息的IAB节点之外的任意一个IAB节点提供服务的小区。
一种可行的实现方式中，所述收发模块81，用于接收来自宿主节点、经由所述IAB节点转发的所述第二消息，所述宿主节点为所述IAB节点的宿主节点，所述IAB节点是为所述当前小区提供服务的小区。
一种可行的实现方式中，所述网络节点不支持IAB技术，所述当前小区是由所述网络节点提供服务的小区，所述邻居小区是由IAB节点提供服务的小区。
一种可行的实现方式中，所述第二消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
上述图7和图8提供的小区确定装置，可以执行上述实施例中电子设备的动作，其实现原理和技术效果类似，在此不再赘述。
图9为本申请实施例提供的又一种小区确定装置的示意图。该小区确定装置900集成在上述的网络上以使得网络节点发送第一消息，该小区确定装置900包括：收发模块91。
收发模块91，用于向位于当前小区的电子设备发送第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN。
一种可行的实现方式中，当所述第一消息携带指示信息时，所述回传链路中存在NTN；当所述第一消息未携带指示信息时，所述回传链路中不存在NTN。
一种可行的实现方式中，所述第一消息携带回传链路的指示信息；当所述回传链路的指示信息为1时，所述回传链路中存在NTN，当所述回传链路的指示信息为0时，所述回传链路中不存在NTN；或者，当所述回传链路的指示信息为0时，所述回传链路中存在NTN，当所述回传链路的指示信息为1时，所述回传链路中不存在NTN。
一种可行的实现方式中，所述第一消息携带回传链路的时延；当所述时延大于预设时延时，所述回传链路中存在NTN；当所述时延小于或等于预设时延时，所述回传链路中不存在NTN。
一种可行的实现方式中，当所述第一消息携带NTN类型时，所述回传链路中存在NTN；当所述第一消息未携带NTN类型时，所述回传链路中不存在NTN。
一种可行的实现方式中，所述网络节点为IAB节点，所述当前小区是由所述IAB节点提供服务的小区。
一种可行的实现方式中，所述收发模块91向位于当前小区的电子设备发送第一消息之前，还用于接收来自宿主节点的第一消息，所述宿主节点是所述IAB节点的宿主节点。
一种可行的实现方式中，所述第一消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
图10为本申请实施例提供的又一种小区确定装置的示意图。该小区确定装置1000集成在上述的网络上以使得网络节点发送第二消息，该小区确定装置1000包括：收发模块1001。
收发模块1001，用于向位于当前小区的电子设备发送第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN。
一种可行的实现方式中，当所述第二消息携带指示信息时，候选小区的回传链路中存在NTN；当所述第二消息未携带指示信息时，候选小区的回传链路中不存在NTN，其中，候选小区是候选小区集合中的任意一个候选小区，候选小区集合是根据当前小区和/或邻居小区确定出的。
一种可行的实现方式中，所述第二消息携带候选小区的回传链路的指示信息；当所述回传链路的指示信息为1时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为0时，所述候选小区的回传链路中不存在NTN；或者，当所述回传链路的指示信息为0时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为1时，所述候选小区的回传链路中不存在NTN。
一种可行的实现方式中，所述第二消息携带所述候选小区的回传链路的时延；当所述时延大于预设时延时，所述候选小区的回传链路中存在NTN；当所述时延小于或等于预设时延时，所述候选小区的回传链路中不存在NTN。
一种可行的实现方式中，当所述第二消息携带NTN类型时，所述候选小区的回传链路中存在NTN；当所述第二消息未携带NTN类型时，所述候选小区的回传链路中不存在NTN。
一种可行的实现方式中，所述网络节点为一个或多个IAB节点中的一个IAB节点，所述当前小区是由发送所述第二消息的IAB节点提供服务的小区，所述邻居小区是所述一个或多个IAB节点中，除发送所述第二消息的IAB节点之外的任意一个IAB节点提供服务的小区。
一种可行的实现方式中，所述收发模块1001向位于当前小区的电子设备发送第二消息之前，还用于接收来自宿主节点的第二消息，所述宿主节点是所述IAB节点的宿主节点。
一种可行的实现方式中，所述网络节点不支持IAB技术，所述当前小区是由所述网络节点提供服务的小区，所述邻居小区是由IAB节点提供服务的小区。
一种可行的实现方式中，所述第二消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB
上述图9或图10提供的小区确定装置，可以执行上述实施例中网络节点的动作，其实现原理和技术效果类似，在此不再赘述。
图11为本申请实施例提供的一种电子设备的结构示意图。如图11所示，该电子设备1100包括：
处理器1101和存储器1102；
所述存储器1102存储计算机指令；
所述处理器1101执行所述存储器1102存储的计算机指令，使得所述处理器1101执行如上应用于 电子设备的方法。
处理器1101的具体实现过程可参见上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
可选地，该电子设备1100还包括通信部件1103。其中，处理器1101、存储器1102以及通信部件1103可以通过总线1104连接。
图12为本申请实施例提供的一种网络节点的结构示意图。如图12所示，该网络节点1200包括：
处理器1201和存储器1202；
所述存储器1202存储计算机指令；
所述处理器1201执行所述存储器1202存储的计算机指令，使得所述处理器121执行如上应用于网络节点的方法。
处理器1201的具体实现过程可参见上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
可选地，该网络节点1200还包括通信部件1203。其中，处理器1201、存储器1202以及通信部件1203可以通过总线1204连接。
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计算机指令，所述计算机指令被处理器执行时用于实现如上应用于电子设备的方法。
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计算机指令，所述计算机指令被处理器执行时用于实现如上应用于网络节点的方法。
本申请实施例还提供一种计算机程序产品，该计算机程序产品包含计算机程序，计算机程序被处理器执行时实现如上应用于电子设备的方法。
本申请实施例还提供一种计算机程序产品，该计算机程序产品包含计算机程序，计算机程序被处理器执行时实现如上应用于网络节点的方法。
本申请实施例还提供一种芯片，芯片与电子设备中的存储器耦合，使得芯片在运行时调用存储器中存储的程序指令，使得电子设备执行如上述方法实施例中电子设备的各个过程。
本申请实施例还提供一种芯片，芯片与网络节点中的存储器耦合，使得芯片在运行时调用存储器中存储的程序指令，使得网络节点执行如上述方法实施例中网络节点的各个过程。
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。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计算机程序指令时，全部或部分地产生按照本申请实施例的流程或功能。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。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计算机可读存储介质传输，例如，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。计算机可读存储介质可以是计算机能够存储的任何可用介质或者是包含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。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 Disk(SSD))等。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。

Claims (94)

  1. 一种小区确定方法，其特征在于，包括：
    在当前小区接收来自网络节点的第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN；
    根据所述第一消息执行小区选择。
  2. 根据权利要求1所述的方法，其特征在于，
    当所述第一消息携带指示信息时，所述回传链路中存在NTN；
    当所述第一消息未携带指示信息时，所述回传链路中不存在NTN。
  3. 根据权利要求1所述的方法，其特征在于，所述第一消息携带回传链路的指示信息；
    当所述回传链路的指示信息为1时，所述回传链路中存在NTN，当所述回传链路的指示信息为0时，所述回传链路中不存在NTN；
    或者，
    当所述回传链路的指示信息为0时，所述回传链路中存在NTN，当所述回传链路的指示信息为1时，所述回传链路中不存在NTN。
  4. 根据权利要求1所述的方法，其特征在于，所述第一消息携带回传链路的时延；
    当所述时延大于预设时延时，所述回传链路中存在NTN；
    当所述时延小于或等于预设时延时，所述回传链路中不存在NTN。
  5. 根据权利要求1所述的方法，其特征在于，
    当所述第一消息携带NTN类型时，所述回传链路中存在NTN；
    当所述第一消息未携带NTN类型时，所述回传链路中不存在NTN。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述根据所述第一消息执行小区选择，包括：
    当所述回传链路中存在NTN时，确定所述当前小区为非驻留小区；
    当所述回传链路中不存在NTN时，确定所述当前小区为驻留小区。
  7. 根据权利要求1-5任一项所述的方法，其特征在于，所述根据所述第一消息执行小区选择，包括：
    当所述回传链路中存在NTN时，确定电子设备的设备特性；
    根据所述电子设备的设备特性，执行小区选择。
  8. 根据权利要求7所述的方法，其特征在于，所述根据所述电子设备的设备特性，执行小区选择，包括：
    当所述设备特性指示所述电子设备为时延不敏感设备时，确定所述当前小区为驻留小区；
    当所述设备特性指示所述电子设备为时延敏感设备时，确定所述当前小区为非驻留小区。
  9. 根据权利要求1-8任一项所述的方法，其特征在于，所述根据所述第一消息执行小区选择，包括：
    当所述当前小区满足第一准则时，根据所述第一消息对所述当前小区执行小区选择，所述第一准则是所述当前小区的参考信号接收功率RSRP和参考信号接收质量RSRQ满足的条件。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，
    所述网络节点为IAB节点，所述当前小区是由所述IAB节点提供服务的小区。
  11. 根据权利要求10所述的方法，其特征在于，所述在当前小区接收来自网络节点的第一消息，包括：
    接收来自宿主节点、经由所述IAB节点转发的所述第一消息，所述宿主节点为所述IAB节点的宿主节点。
  12. 根据权利要求1-11任一项所述的方法，其特征在于，
    所述第一消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
  13. 一种小区重选方法，其特征在于，包括：
    在当前小区接收来自网络节点的第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN；
    根据所述第二消息执行小区重选。
  14. 根据权利要求13所述的方法，其特征在于，所述根据所述第二消息执行小区重选，包括：
    从所述当前小区和/或所述当前小区的邻居小区中确定出候选小区得到候选小区集合；
    根据所述第二消息，对所述候选小区集合中的候选小区执行小区重选。
  15. 根据权利要求14所述的方法，其特征在于，
    当所述第二消息携带指示信息时，所述候选小区的回传链路中存在NTN；
    当所述第二消息未携带指示信息时，所述候选小区的回传链路中不存在NTN。
  16. 根据权利要求14所述的方法，其特征在于，所述第二消息携带候选小区的回传链路的指示信息；
    当所述回传链路的指示信息为1时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为0时，所述候选小区的回传链路中不存在NTN；
    或者，
    当所述回传链路的指示信息为0时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为1时，所述候选小区的回传链路中不存在NTN。
  17. 根据权利要求14所述的方法，其特征在于，所述第二消息携带所述候选小区的回传链路的时延；
    当所述时延大于预设时延时，所述候选小区的回传链路中存在NTN；
    当所述时延小于或等于预设时延时，所述候选小区的回传链路中不存在NTN。
  18. 根据权利要求14所述的方法，其特征在于，
    当所述第二消息携带NTN类型时，所述候选小区的回传链路中存在NTN；
    当所述第二消息未携带NTN类型时，所述候选小区的回传链路中不存在NTN。
  19. 根据权利要求14-18任一项所述的方法，其特征在于，所述根据所述第二消息，对所述候选小区集合中的候选小区执行小区重选，包括：
    根据所述第二消息，从所述候选小区集合中确定出回传链路中不存在NTN、且信号质量值满足门限的beam最多的候选小区作为所述驻留小区；
    若所述候选小区集合中各候选小区的回传链路均存在NTN，则从所述候选小区集合中确定出信号质量值满足门限的beam最多的候选小区作为驻留小区。
  20. 根据权利要求17所述的方法，其特征在于，所述根据所述第二消息，对所述候选小区集合中的候选小区执行小区重选，包括：
    根据所述第二消息，从所述候选小区集合中确定回传链路时延最短的候选小区作为驻留小区。
  21. 根据权利要求18所述的方法，其特征在于，所述根据所述第二消息，对所述候选小区集合中的候选小区执行小区重选，包括：
    当所述第二消息携带所述候选小区集合中各候选小区的回传链路的NTN类型时，从所述候选小区集合中确定出信号质量值满足门限的beam最多的候选小区作为驻留小区。
  22. 根据权利要求14-18任一项所述的方法，其特征在于，所述根据所述第二消息，对所述候选小区集合中的候选小区执行小区重选，包括：
    当所述第二消息指示候选小区的回传链路中存在NTN时，确定电子设备的设备特性；
    根据所述电子设备的设备特性，执行小区重选。
  23. 根据权利要求22所述的方法，其特征在于，所述根据所述电子设备的设备特性，执行小区重选，包括：
    当所述设备特性指示所述电子设备为时延不敏感设备时，从所述候选集合中确定出信号质量值满足门限的beam最多的候选小区作为所述驻留小区；
    当所述设备特性指示所述电子设备为时延敏感设备时，确定所述候选小区集合中的候选小区为非驻留小区。
  24. 根据权利要求14-23任一项所述的方法，其特征在于，所述从所述当前小区和/或所述当前小区的邻居小区中确定出候选小区得到候选小区集合，包括：
    对所述当前小区进行小区测量，得到测量结果；
    根据所述测量结果判断是否启动邻区测量；
    当所述测量结果指示启动邻区测量时，对所述当前小区的邻居小区进行邻区测量，得到所述候选小区集合，其中，所述邻居小区的频率与所述当前小区的频率相同，或者，所述邻居小区的频率的优先级和所述当前小区的频率的优先级相同。
  25. 根据权利要求14-24任一项所述的方法，其特征在于，
    所述网络节点为一个或多个IAB节点中的一个IAB节点，所述当前小区是由发送所述第二消息的IAB节点提供服务的小区，所述邻居小区是所述一个或多个IAB节点中，除发送所述第二消息的IAB节 点之外的任意一个IAB节点提供服务的小区。
  26. 根据权利要求25所述的方法，其特征在于，所述在当前小区接收来自网络节点的第二消息，包括：
    接收来自宿主节点、经由所述IAB节点转发的所述第二消息，所述宿主节点为所述IAB节点的宿主节点，所述IAB节点是为所述当前小区提供服务的小区。
  27. 根据权利要求13-24任一项所述的方法，其特征在于，
    所述网络节点不支持IAB技术，所述当前小区是由所述网络节点提供服务的小区，所述邻居小区是由IAB节点提供服务的小区。
  28. 根据权利要求13-27任一项所述的方法，其特征在于，
    所述第二消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
  29. 一种小区确定方法，其特征在于，包括：
    网络节点向位于当前小区的电子设备发送第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN。
  30. 根据权利要求29所述的方法，其特征在于，
    当所述第一消息携带指示信息时，所述回传链路中存在NTN；
    当所述第一消息未携带指示信息时，所述回传链路中不存在NTN。
  31. 根据权利要求29所述的方法，其特征在于，所述第一消息携带回传链路的指示信息；
    当所述回传链路的指示信息为1时，所述回传链路中存在NTN，当所述回传链路的指示信息为0时，所述回传链路中不存在NTN；
    或者，
    当所述回传链路的指示信息为0时，所述回传链路中存在NTN，当所述回传链路的指示信息为1时，所述回传链路中不存在NTN。
  32. 根据权利要求29所述的方法，其特征在于，所述第一消息携带回传链路的时延；
    当所述时延大于预设时延时，所述回传链路中存在NTN；
    当所述时延小于或等于预设时延时，所述回传链路中不存在NTN。
  33. 根据权利要求29所述的方法，其特征在于，
    当所述第一消息携带NTN类型时，所述回传链路中存在NTN；
    当所述第一消息未携带NTN类型时，所述回传链路中不存在NTN。
  34. 根据权利要求29-33任一项所述的方法，其特征在于，
    所述网络节点为IAB节点，所述当前小区是由所述IAB节点提供服务的小区。
  35. 根据权利要求34所述的方法，其特征在于，所述网络节点向位于当前小区的电子设备发送第一消息之前，还包括：
    所述网络节点接收来自宿主节点的第一消息，所述宿主节点是所述IAB节点的宿主节点。
  36. 根据权利要求29-35任一项所述的方法，其特征在于，
    所述第一消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
  37. 一种小区确定方法，其特征在于，包括：
    网络节点向位于当前小区的电子设备发送第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN。
  38. 根据权利要求37所述的方法，其特征在于，
    当所述第二消息携带指示信息时，候选小区的回传链路中存在NTN；
    当所述第二消息未携带指示信息时，候选小区的回传链路中不存在NTN，其中，候选小区是候选小区集合中的任意一个候选小区，所述候选小区集合是根据当前小区和/或邻居小区确定出的。
  39. 根据权利要求37所述的方法，其特征在于，所述第二消息携带候选小区的回传链路的指示信息；
    当所述回传链路的指示信息为1时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为0时，所述候选小区的回传链路中不存在NTN；
    或者，
    当所述回传链路的指示信息为0时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为1时，所述候选小区的回传链路中不存在NTN。
  40. 根据权利要求37所述的方法，其特征在于，所述第二消息携带候选小区的回传链路的时延；
    当所述时延大于预设时延时，所述候选小区的回传链路中存在NTN；
    当所述时延小于或等于预设时延时，所述候选小区的回传链路中不存在NTN。
  41. 根据权利要求37所述的方法，其特征在于，
    当所述第二消息携带NTN类型时，所述候选小区的回传链路中存在NTN；
    当所述第二消息未携带NTN类型时，所述候选小区的回传链路中不存在NTN。
  42. 根据权利要求37-41任一项所述的方法，其特征在于，
    所述网络节点为一个或多个IAB节点中的一个IAB节点，所述当前小区是由发送所述第二消息的IAB节点提供服务的小区，所述邻居小区是所述一个或多个IAB节点中，除发送所述第二消息的IAB节点之外的任意一个IAB节点提供服务的小区。
  43. 根据权利要求42所述的方法，其特征在于，所述网络节点向位于当前小区的电子设备发送第二消息之前，还包括：
    所述网络节点接收来自宿主节点的第二消息，所述宿主节点是所述IAB节点的宿主节点。
  44. 根据权利要求37-41任一项所述的方法，其特征在于，
    所述网络节点不支持IAB技术，所述当前小区是由所述网络节点提供服务的小区，所述邻居小区是由IAB节点提供服务的小区。
  45. 根据权利要求37-44任一项所述的方法，其特征在于，
    所述第二消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
  46. 一种小区确定装置，其特征在于，包括：
    收发模块，用于在当前小区接收来自网络节点的第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN；
    处理模块，用于根据所述第一消息执行小区选择。
  47. 根据权利要求46所述的装置，其特征在于，
    当所述第一消息携带指示信息时，所述回传链路中存在NTN；
    当所述第一消息未携带指示信息时，所述回传链路中不存在NTN。
  48. 根据权利要求47所述的装置，其特征在于，所述第一消息携带回传链路的指示信息；
    当所述回传链路的指示信息为1时，所述回传链路中存在NTN，当所述回传链路的指示信息为0时，所述回传链路中不存在NTN；
    或者，
    当所述回传链路的指示信息为0时，所述回传链路中存在NTN，当所述回传链路的指示信息为1时，所述回传链路中不存在NTN。
  49. 根据权利要求47所述的装置，其特征在于，所述第一消息携带回传链路的时延；
    当所述时延大于预设时延时，所述回传链路中存在NTN；
    当所述时延小于或等于预设时延时，所述回传链路中不存在NTN。
  50. 根据权利要求47所述的装置，其特征在于，
    当所述第一消息携带NTN类型时，所述回传链路中存在NTN；
    当所述第一消息未携带NTN类型时，所述回传链路中不存在NTN。
  51. 根据权利要求46-50任一项所述的装置，其特征在于，
    所述处理模块，用于当所述回传链路中存在NTN时，确定所述当前小区为非驻留小区；当所述回传链路中不存在NTN时，确定所述当前小区为驻留小区。
  52. 根据权利要求46-50任一项所述的装置，其特征在于，
    所述处理模块，用于当所述回传链路中存在NTN时，确定电子设备的设备特性；根据所述电子设备的设备特性，执行小区选择。
  53. 根据权利要求52所述的装置，其特征在于，
    所述处理模块根据所述电子设备的设备特性，执行小区选择时，用于当所述设备特性指示所述电子设备为时延不敏感设备时，确定所述当前小区为驻留小区；当所述设备特性指示所述电子设备为时延敏感设备时，确定所述当前小区为非驻留小区。
  54. 根据权利要求46-53任一项所述的装置，其特征在于，
    所述处理模块，用于当所述当前小区满足第一准则时，根据所述第一消息对所述当前小区执行小区选择，所述第一准则是所述当前小区的参考信号接收功率RSRP和参考信号接收质量RSRQ满足的条件。
  55. 根据权利要求46-54任一项所述的装置，其特征在于，
    所述网络节点为IAB节点，所述当前小区是由所述IAB节点提供服务的小区。
  56. 根据权利要求55所述的装置，其特征在于，
    所述收发模块，用于接收来自宿主节点、经由所述IAB节点转发的所述第一消息，所述宿主节点为所述IAB节点的宿主节点。
  57. 根据权利要求46-56任一项所述的装置，其特征在于，
    所述第一消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
  58. 一种小区确定装置，其特征在于，包括：
    收发模块，用于在当前小区接收来自网络节点的第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN；
    处理模块，用于根据所述第二消息执行小区重选。
  59. 根据权利要求58所述的装置，其特征在于，
    所述处理模块，用于从所述当前小区和/或所述当前小区的邻居小区中确定出候选小区得到候选小区集合；根据所述第二消息，对所述候选小区集合中的候选小区执行小区重选。
  60. 根据权利要求59所述的装置，其特征在于，
    当所述第二消息携带指示信息时，所述候选小区的回传链路中存在NTN；
    当所述第二消息未携带指示信息时，所述候选小区的回传链路中不存在NTN。
  61. 根据权利要求59所述的装置，其特征在于，所述第二消息携带候选小区的回传链路的指示信息；当所述回传链路的指示信息为1时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为0时，所述候选小区的回传链路中不存在NTN；或者，当所述回传链路的指示信息为0时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为1时，所述候选小区的回传链路中不存在NTN。
  62. 根据权利要求59所述的装置，其特征在于，所述第二消息携带所述候选小区的回传链路的时延；当所述时延大于预设时延时，所述候选小区的回传链路中存在NTN；当所述时延小于或等于预设时延时，所述候选小区的回传链路中不存在NTN。
  63. 根据权利要求59所述的装置，其特征在于，
    当所述第二消息携带NTN类型时，所述候选小区的回传链路中存在NTN；
    当所述第二消息未携带NTN类型时，所述候选小区的回传链路中不存在NTN。
  64. 根据权利要求59-63任一项所述的装置，其特征在于，
    所述处理模块，用于根据所述第二消息，从所述候选小区集合中确定出回传链路中不存在NTN、且信号质量值满足门限的beam最多的候选小区作为所述驻留小区；若所述候选小区集合中各候选小区的回传链路均存在NTN，则从所述候选小区集合中确定出信号质量值满足门限的beam最多的候选小区作为驻留小区。
  65. 根据权利要求62所述的装置，其特征在于，
    所述处理模块，用于根据所述第二消息，从所述候选小区集合中确定回传链路时延最短的候选小区作为驻留小区。
  66. 根据权利要求63所述的装置，其特征在于，所述处理模块，用于当所述第二消息携带所述候选小区集合中各候选小区的回传链路的NTN类型时，从所述候选小区集合中确定出信号质量值满足门限的beam最多的候选小区作为驻留小区。
  67. 根据权利要求59-63任一项所述的装置，其特征在于，所述处理模块，用于当所述第二消息指示候选小区的回传链路中存在NTN时，确定电子设备的设备特性；根据所述电子设备的设备特性，执行小区重选。
  68. 根据权利要求67所述的装置，其特征在于，
    所述处理模块根据所述电子设备的设备特性，执行小区重选时，用于当所述设备特性指示所述电子设备为时延不敏感设备时，从所述候选集合中确定出信号质量值满足门限的beam最多的候选小区作为所述驻留小区；当所述设备特性指示所述电子设备为时延敏感设备时，确定所述候选小区集合中的候选小区为非驻留小区。
  69. 根据权利要求59-68任一项所述的装置，其特征在于，
    所述处理模块从所述当前小区和/或所述当前小区的邻居小区中确定出候选小区得到候选小区集合，时，用于对所述当前小区进行小区测量，得到测量结果；根据所述测量结果判断是否启动邻区测量；当 所述测量结果指示启动邻区测量时，对所述当前小区的邻居小区进行邻区测量，得到所述候选小区集合，其中，所述邻居小区的频率与所述当前小区的频率相同，或者，所述邻居小区的频率的优先级和所述当前小区的频率的优先级相同。
  70. 根据权利要求59-69任一项所述的装置，其特征在于，
    所述网络节点为一个或多个IAB节点中的一个IAB节点，所述当前小区是由发送所述第二消息的IAB节点提供服务的小区，所述邻居小区是所述一个或多个IAB节点中，除发送所述第二消息的IAB节点之外的任意一个IAB节点提供服务的小区。
  71. 根据权利要求70所述的装置，其特征在于，
    所述收发模块，用于接收来自宿主节点、经由所述IAB节点转发的所述第二消息，所述宿主节点为所述IAB节点的宿主节点，所述IAB节点是为所述当前小区提供服务的小区。
  72. 根据权利要求58-69任一项所述的装置，其特征在于，
    所述网络节点不支持IAB技术，所述当前小区是由所述网络节点提供服务的小区，所述邻居小区是由IAB节点提供服务的小区。
  73. 根据权利要求58-72任一项所述的装置，其特征在于，
    所述第二消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
  74. 一种小区确定装置，其特征在于，包括：
    收发模块，用于向位于当前小区的电子设备发送第一消息，所述第一消息用于指示当前小区的回传链路中是否存在非地面通信网络NTN。
  75. 根据权利要求74所述的装置，其特征在于，
    当所述第一消息携带指示信息时，所述回传链路中存在NTN；
    当所述第一消息未携带指示信息时，所述回传链路中不存在NTN。
  76. 根据权利要求74所述的装置，其特征在于，所述第一消息携带回传链路的指示信息；
    当所述回传链路的指示信息为1时，所述回传链路中存在NTN，当所述回传链路的指示信息为0时，所述回传链路中不存在NTN；
    或者，
    当所述回传链路的指示信息为0时，所述回传链路中存在NTN，当所述回传链路的指示信息为1时，所述回传链路中不存在NTN。
  77. 根据权利要求74所述的装置，其特征在于，所述第一消息携带回传链路的时延；
    当所述时延大于预设时延时，所述回传链路中存在NTN；
    当所述时延小于或等于预设时延时，所述回传链路中不存在NTN。
  78. 根据权利要求74所述的装置，其特征在于，
    当所述第一消息携带NTN类型时，所述回传链路中存在NTN；
    当所述第一消息未携带NTN类型时，所述回传链路中不存在NTN。
  79. 根据权利要求74-78任一项所述的装置，其特征在于，
    所述网络节点为IAB节点，所述当前小区是由所述IAB节点提供服务的小区。
  80. 根据权利要求79所述的装置，其特征在于，
    所述收发模块向位于当前小区的电子设备发送第一消息之前，还用于接收来自宿主节点的第一消息，所述宿主节点是所述IAB节点的宿主节点。
  81. 根据权利要求74-80任一项所述的装置，其特征在于，
    所述第一消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
  82. 一种小区确定装置，其特征在于，包括：
    收发模块，用于向位于当前小区的电子设备发送第二消息，所述第二消息用于指示当前小区的回传链路和/或所述当前小区的邻居小区的回传链路中是否存在非地面通信网络NTN。
  83. 根据权利要求82所述的装置，其特征在于，
    当所述第二消息携带指示信息时，候选小区的回传链路中存在NTN；
    当所述第二消息未携带指示信息时，候选小区的回传链路中不存在NTN，其中，候选小区是候选小区集合中的任意一个候选小区，候选小区集合是根据当前小区和/或邻居小区确定出的。
  84. 根据权利要求82所述的装置，其特征在于，
    所述第二消息携带候选小区的回传链路的指示信息；当所述回传链路的指示信息为1时，所述候选 小区的回传链路中存在NTN，当所述回传链路的指示信息为0时，所述候选小区的回传链路中不存在NTN；或者，当所述回传链路的指示信息为0时，所述候选小区的回传链路中存在NTN，当所述回传链路的指示信息为1时，所述候选小区的回传链路中不存在NTN。
  85. 根据权利要求82所述的装置，其特征在于，所述第二消息携带所述候选小区的回传链路的时延；当所述时延大于预设时延时，所述候选小区的回传链路中存在NTN；当所述时延小于或等于预设时延时，所述候选小区的回传链路中不存在NTN。
  86. 根据权利要求82所述的装置，其特征在于，
    当所述第二消息携带NTN类型时，所述候选小区的回传链路中存在NTN；
    当所述第二消息未携带NTN类型时，所述候选小区的回传链路中不存在NTN。
  87. 根据权利要求82-86任一项所述的装置，其特征在于，
    所述网络节点为一个或多个IAB节点中的一个IAB节点，所述当前小区是由发送所述第二消息的IAB节点提供服务的小区，所述邻居小区是所述一个或多个IAB节点中，除发送所述第二消息的IAB节点之外的任意一个IAB节点提供服务的小区。
  88. 根据权利要求87所述的装置，其特征在于，
    所述收发模块向位于当前小区的电子设备发送第二消息之前，还用于接收来自宿主节点的第二消息，所述宿主节点是所述IAB节点的宿主节点。
  89. 根据权利要求82-86任一项所述的装置，其特征在于，
    所述网络节点不支持IAB技术，所述当前小区是由所述网络节点提供服务的小区，所述邻居小区是由IAB节点提供服务的小区。
  90. 根据权利要求82-89任一项所述的装置，其特征在于，
    所述第二消息携带在下述信令中的任意一个信令中：无线资源控制RRC信令、系统信息块SIB1、SIBx、主系统信息块MIB。
  91. 一种电子设备，其特征在于，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1-28中任一项所述的方法。
  92. 一种网络节点，其特征在于，包括：
    处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求29-45中任一项所述的方法。
  93. 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中存储有计算机指令，所述处理器执行所述计算机程序时实现如权利要求1-28任一所述的方法；或者，所述处理器执行所述计算机程序时实现如权利要求29-45任一所述的方法。
  94. 一种计算机程序产品，其特征在于，包括计算机程序，所述计算机程序被处理器执行时实现如权利要求1-28中任一项所述的方法；或者，所述计算机程序被处理器执行时实现如权利要求29-45中任一项所述的方法。
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