Communication method and apparatus

Abstract

The application provides a communication method and device. The method can include: a terminal device determining height information, the first parameter being related to the height information; the terminal device receiving configuration information from a first network device, the configuration information including a correspondence between the height information and the first parameter; and the terminal device determining the first parameter corresponding to the terminal device according to the height information, the first parameter including one or more of a tracking area parameter, a radio access network notification area parameter, a cell selection or reselection parameter, and a measurement configuration parameter. Through the above method, configuration information corresponding to the height of a UAV is provided, ensuring that a UAV terminal device in high altitude can obtain effective configuration parameters, and improving the experience of users at different heights.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular to a communication method and device. BACKGROUND

[0002] In a wireless communication network, a relatively clear cell topology structure can be determined on the ground through network planning, automatic neighbor relation (ANR) and minimization of drive tests (MDT), and the neighbor relation is mostly maintained based on the perception of a ground user terminal.

[0003] The application of unmanned aerial vehicles (UAVs) is becoming more and more popular in today's society, and the communication environment of UAVs is different from that of ordinary terminals. It is generally believed that UAVs move above the ground, and different types of UAVs have different flight altitudes. Under the same network deployment, it is an urgent problem to ensure that UAVs at high altitudes can obtain effective configuration information. SUMMARY

[0004] Embodiments of the present application provide a communication method and device, which can solve the problem that configuration information obtained by a terminal device (such as a UAV terminal device) at high altitude is not suitable.

[0005] In a first aspect, embodiments of the present application provide a communication method, which can be executed by a terminal device or a component (such as a processor, a chip, or a chip system) of the terminal device, and includes: receiving configuration information sent by a first network device, the configuration information including a correspondence between height information and a first parameter; and determining a target parameter according to a current height of the terminal device, wherein the first parameter includes one or more of a tracking area parameter, a radio access network notification area parameter, a cell selection or reselection parameter, and a measurement configuration parameter.

[0006] Optionally, determining the target parameter according to the current height of the terminal device includes: determining the target parameter according to the height information and the configuration information.

[0007] Through the above method, the terminal device can determine the target parameter according to the height information, that is, the terminal device obtains the target parameter corresponding to the height information according to the height information, which improves the user experience. For example, terminal devices at different altitudes use different cell selection or reselection parameters for cell selection or reselection, thereby improving the reliability of cell reselection.

[0008] In some possible implementation, the correspondence can be a table; alternatively, the correspondence between the height information of the terminal device and the first parameter can be a function, that is, by sending the correspondence, the first network device configures one or more first parameters corresponding to the height information for the terminal device.

[0009] Through the above implementation, the terminal device can obtain the correspondence between the height information of the terminal device and the first parameter through various possible implementations.

[0010] In some possible implementation, the height threshold value can be received through the configuration information, so that the height information can be determined according to the current height of the terminal device and the height threshold value.

[0011] Alternatively, the height information can be a height range, or the height information can also be a height level, or the height information can also be an absolute height or a relative height.

[0012] Through the above implementation, the terminal device can determine the height information according to the current height, or determine the height information according to the current height and the height threshold value.

[0013] In some possible implementation, the measurement information sent by the terminal device can be based on the information obtained through event measurement, or can be information obtained through periodic measurement.

[0014] In some possible implementation, the measurement information sent by the terminal device can be based on the information obtained through event measurement, or can be information obtained through periodic measurement.

[0015] Alternatively, the terminal device can obtain the measurement information once every certain height interval.

[0016] Through the above implementation, the terminal device sends the measurement information carrying the height information to the first network device, which helps the first network device to improve the neighbor relation.

[0017] In a second aspect, an embodiment of the present application provides a communication method, which can be executed by a first network device, or by a component (for example, a processor, a chip, or a chip system, etc.) of the first network device, and includes: determining a correspondence between a first parameter and height information; and sending configuration information to a terminal device, the configuration information including the correspondence between the first parameter and the height information, the first parameter including one or more of a tracking area parameter, a radio access network notification area parameter, a cell selection or reselection parameter, and a measurement configuration parameter.

[0018] By the method, the first network device configures at least one set of first parameters corresponding to height information for the terminal device, so that the experience of users at different heights can be improved.

[0019] In some possible implementation, the height information includes one of height range, height level, absolute height, and relative height. In some possible implementation, the configuration information includes a height threshold value, and the height threshold value is related to the height information.

[0020] Optionally, the terminal device determines the height information according to the height threshold value and a current height of the terminal device.

[0021] By the above implementation, the first network device sends the height threshold value to the terminal device, so that the terminal device determines the height information, and the terminal device can obtain the target parameter corresponding to the height information.

[0022] In some possible implementation, the method of the second aspect can further include receiving measurement information from the terminal device, and the measurement information includes identification information of a cell and a height corresponding to the cell.

[0023] By the above implementation, the first network device can update the neighbor relation according to the identification information of the cell and the height corresponding to the cell carried in the measurement information.

[0024] In a third aspect, an embodiment of the present application provides a communication method, which can be executed by a first network device or a component (for example, a processor, a chip, or a chip system) of the first network device, and includes: receiving first information from a second network device, the first information including neighbor information of the second network device and height information corresponding to the neighbor information; and maintaining the neighbor information according to the first information, the neighbor information including a neighbor identification or a neighbor list.

[0025] In some possible implementation, the first network device saves the first information, and optionally, the first network device updates or maintains the neighbor information according to the first information.

[0026] Optionally, the neighbor information of the second network device further includes one or more of tracking area parameters or radio access network notification area parameters.

[0027] By the above implementation, the first network device can update the neighbor relation, the tracking area information, and the radio access network notification area information according to the height information of the neighbor of the second network device.

[0028] In some possible implementation, the method of the third aspect can further include the step of sending second information to the second network device, the second information including neighbor information of the first network device and height information corresponding to the neighbor information.

[0029] Optionally, the neighbor information of the first network device further comprises one or more of tracking area parameters or radio access network notification area parameters.

[0030] Through the above embodiments, the second network device can update the neighbor relation according to the height information of the neighbor interacted by the first network device, perfect the neighbor topology relation, and update the tracking area information and the radio access network notification area information.

[0031] In a fourth aspect, an embodiment of the present application provides a communication method, which can be executed by a second network device, or by a component (for example, a processor, a chip, or a chip system, etc.) of the second network device, and comprises: the second network device maintaining neighbor information according to height information, the neighbor information comprising a neighbor identifier or a neighbor list; and the second network device sending first information to a first network device, the first information comprising the neighbor information of the second network device and the height information corresponding to the neighbor information.

[0032] Through the above embodiments, the second network device sends the neighbor information corresponding to the height information to the first network device, and the first network device can update the neighbor relation according to the height information of the neighbor interacted by the second network device.

[0033] In some possible embodiments, the method of the fourth aspect can further comprise the step of receiving second information from the first network device, the second information comprising the neighbor information of the first network device and the height information corresponding to the neighbor information.

[0034] In a fifth aspect, an embodiment of the present application provides a communication apparatus, which can implement the method in the above first aspect or any possible implementation manner of the first aspect. The apparatus comprises corresponding units or components for executing the above method. The units included in the apparatus can be implemented in a software and / or hardware manner. The apparatus can be, for example, a terminal device, or a chip, a chip system, or a processor, etc. that can support the terminal device to implement the above method.

[0035] In a sixth aspect, an embodiment of the present application provides a communication apparatus, which can implement the method in the above second aspect or any possible implementation manner of the second aspect, or the third aspect or any possible implementation manner of the third aspect. The apparatus comprises corresponding units or components for executing the above method. The units included in the apparatus can be implemented in a software and / or hardware manner. The apparatus can be, for example, a first network device, or a chip, a chip system, or a processor, etc. that can support the first network device to implement the above method.

[0036] In a seventh aspect, an embodiment of the present application provides a communication apparatus, which can implement the method in the fourth aspect or any possible implementation of the fourth aspect. The apparatus includes corresponding units or components for performing the above method. The units included in the apparatus can be implemented by software and / or hardware. The apparatus can be, for example, a second network device, or a chip, chip system, or processor, etc. that can support the second network device to implement the above method.

[0037] In an eighth aspect, an embodiment of the present application provides a communication apparatus, which includes a processor coupled with a memory, and the memory is configured to store programs or instructions, when the programs or instructions are executed by the processor, the apparatus implements the method in the first aspect or any possible implementation of the first aspect.

[0038] In a ninth aspect, an embodiment of the present application provides a communication apparatus, which includes a processor coupled with a memory, and the memory is configured to store programs or instructions, when the programs or instructions are executed by the processor, the apparatus implements the method in the second aspect or any possible implementation of the second aspect, or the third aspect or any possible implementation of the third aspect.

[0039] In a tenth aspect, an embodiment of the present application provides a communication apparatus, which includes a processor coupled with a memory, and the memory is configured to store programs or instructions, when the programs or instructions are executed by the processor, the apparatus implements the method in the fourth aspect or any possible implementation of the fourth aspect.

[0040] In an eleventh aspect, an embodiment of the present application provides a computer readable storage medium, which stores computer programs or instructions, when the computer programs or instructions are executed, the computer performs the method in the first aspect, the second aspect, the third aspect, the fourth aspect, any possible implementation of the first aspect, any possible implementation of the second aspect, any possible implementation of the third aspect, or any possible implementation of the fourth aspect.

[0041] In a twelfth aspect, an embodiment of the present application provides a computer program product, which includes computer program codes, when the computer program codes are run on a computer, the computer performs the method in the first aspect, the second aspect, the third aspect, the fourth aspect, any possible implementation of the first aspect, any possible implementation of the second aspect, any possible implementation of the third aspect, or any possible implementation of the fourth aspect.

[0042] In a thirteenth aspect, an embodiment of the present application provides a chip, comprising: a processor coupled with a memory, the memory being configured to store programs or instructions, when the programs or instructions are executed by the processor, the chip implements the method in the first aspect, the second aspect, the third aspect, the fourth aspect, any possible implementation of the first aspect, any possible implementation of the second aspect, any possible implementation of the third aspect, or any possible implementation of the fourth aspect.

[0043] In a fourteenth aspect, an embodiment of the present application provides a communication system, comprising: the apparatus in the fifth aspect, the apparatus in the sixth aspect, and the apparatus in the seventh aspect. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 A schematic diagram of a communication system to which embodiments of the present application can be applied;

[0045] Figure 1A A schematic diagram of cell coverage of different heights according to an embodiment of the present application;

[0046] Figure 2 A schematic diagram of an architecture of a communication system according to an embodiment of the present application;

[0047] Figure 3 A schematic diagram of an interaction of a communication method according to an embodiment of the present application;

[0048] Figure 4 A schematic diagram of an interaction of a communication method according to an embodiment of the present application;

[0049] Figure 5 A schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0050] Figure 6 A schematic diagram of another communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0051] Firstly, a communication system to which the technical solution provided by the embodiments of the present application can be applied is described.

[0052] The technical solution of the embodiments of the present application can be applied to various communication systems, for example: a long term evolution (LTE) system, or a 5th generation (5G) communication system, or a wireless-fidelity (WiFi) system, or a new radio (NR) system, or a system integrating multiple communication systems, or a future evolved communication system, and other network systems that can be used to provide communication services, which are not limited herein

[0053] Figure 1 An exemplary schematic diagram of a communication system to which embodiments of the present application can be applied is given. The communication system 100 includes one or more network devices (network device 110 and network device 120 are shown in the figure), and one or more terminal devices in communication with the one or more network devices. Figure 1 The network device 110 and the network device 120 shown in the figure are in communication, and the terminal device 130 is in communication with the network device 110. It can be understood that the network device and the terminal device can also be referred to as communication devices.

[0054] Figure 2 An exemplary schematic diagram of an architecture of a communication system provided by embodiments of the present application is shown as follows. Figure 2 The network device in the radio access network (RAN) shown in the figure is a base station (such as a gNodeB or gNB) of a centralized unit (CU) and distributed unit (DU) separation architecture. The RAN can be connected to a core network (for example, a core network of LTE, a core network of 5G, etc.). The CU and the DU can be understood as a division of the base station from the perspective of logical functions. The CU and the DU can be physically separated or deployed together. Multiple DUs can share one CU. One DU can also be connected to multiple CUs (not shown in the figure). The CU and the DU can be connected through an interface, for example, an F1 interface.

[0055] Optionally, the CU and the DU can be divided according to the protocol layer of the wireless network. For example, the functions of the radio resource control (RRC), the service data adaptation protocol stack (SDAP), and the packet data convergence protocol (PDCP) layer can be set in the CU, while the functions of the radio link control (RLC), the media access control (MAC) layer, the physical (PHY) layer, etc. can be set in the DU. It needs to be understood that the division of the processing functions of the CU and the DU according to the protocol layer is only an example, and the division can also be performed in other manners.

[0056] Optionally, the CU or DU can also be divided into partial processing functions with protocol layers. In one possible design, partial functions of the RLC layer and functions of protocol layers above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and functions of protocol layers below the RLC layer are arranged in the DU. In another possible design, the functions of the CU or DU can also be divided according to service types or other system requirements, for example, according to time delay. Functions that require processing time to meet time delay requirements are arranged in the DU, and functions that do not require meeting the time delay requirements are arranged in the CU. Figure 2 The illustrated network architecture can be applied to a 5G communication system, which can also share one or more components or resources with an LTE system. In another design, the CU can also have one or more functions of a core network. One or more CUs can be centrally arranged or separately arranged. For example, the CU can be arranged at a network side for centralized management. The DU can have multiple radio frequency functions, or the radio frequency functions can be remotely arranged.

[0057] Optionally, the functions of the CU can be implemented by one entity or by different entities. For example, the functions of the CU can be further divided, for example, the control plane (CP) and the user plane (UP) are separated, i.e., the CU control plane (CU-CP) and the CU user plane (CU-UP). For example, the CU-CP and the CU-UP can be implemented by different functional entities, and the CU-CP and the CU-UP can be coupled with the DU to jointly complete the functions of the base station. In one possible way, the CU-CP is responsible for the control plane functions, mainly including RRC and PDCP-C. The PDCP-C is mainly responsible for data encryption and decryption, integrity protection, sequence number maintenance, data transmission, and the like of the control plane; the CU-UP is responsible for the user plane functions, mainly including SDAP and PDCP-U, wherein the SDAP is mainly responsible for processing data of the core network and mapping the data flow to a bearer. The PDCP-U is mainly responsible for data encryption and decryption, integrity protection, header compression, sequence number maintenance, data transmission, and the like of the data plane, and the CU-CP and the CU-UP are connected through an E1 interface.

[0058] It can be understood that the embodiments provided in the present application are also applicable to an architecture in which the CU and the DU are not separated.

[0059] In this application, the network device can be any kind of device with wireless transceiver function. Including but not limited to: evolved Node B (NodeB or eNB or e-NodeB) in LTE, base station (gNodeB or gNB) or transmission receiving point (TRP) in NR, base station of subsequent evolution of 3GPP, access node in WiFi system, wireless relay node, wireless backhaul node, etc. The base station can be: macro base station, micro base station, pico base station, small station, relay station, or balloon station, etc. Multiple base stations can support the network of the same technology mentioned above, or support the network of different technologies mentioned above. The base station can contain one or more co-sited or non-co-sited TRPs. The network device can also be a wireless controller in the cloud radio access network (CRAN) scenario, CU, and / or DU. The network device can also be a server, a wearable device, or a vehicle-mounted device, etc. The following is described by taking the network device as a base station as an example. The multiple network devices can be the same type of base station, or different types of base stations. The base station can communicate with the terminal device, or communicate with the terminal device through the relay station. The terminal device can communicate with multiple base stations of different technologies, for example, the terminal device can communicate with the base station supporting LTE network, and can also communicate with the base station supporting 5G network, and can also support dual connection with the base station of LTE network and the base station of 5G network. The network device in the embodiment of the application can also be referred to as an access network device.

[0060] The terminal device can be a user equipment (UE), or an access terminal, or a subscriber unit, or a subscriber station, or a mobile station, or a mobile, or a remote station, or a remote terminal, or a mobile device, or a user terminal, or a terminal, or a wireless terminal device, or a user agent or a user device. The terminal can also be a cellular phone, a cordless phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a mobile phone, a Pad, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a vehicle-mounted terminal device, a wireless terminal in self driving, a wireless terminal in remote medical treatment, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wearable terminal device, a terminal device in future 5G network, or a terminal device in future evolved PLMN, etc. The terminal can also be fixed or mobile, and can be deployed on land, in water or in air.

[0061] In addition, in the embodiments of the present application, the terminal device can also be an unmanned aerial vehicle (UAV). The UAV in the embodiments of the present application can be a traditional UAV or a UAV carrying a traditional ground terminal device (for example, placing a traditional terminal device on the UAV). The ground terminal device can also be referred to as a normal terminal device or a mobile ground terminal device. It can be understood that the ground terminal device is located close to the ground.

[0062] In the method provided in the present application, the network device configures the terminal device (for example, the UAV) with configuration parameters corresponding to the height. It can be understood that the network device sets different configuration parameters for the terminal device in terms of height, that is, the network device can configure different configuration parameters for terminal devices of different heights. The terminal device can select the configuration parameter corresponding to its own height according to the correspondence between the height and the configuration parameter, thereby improving the experience of users of different heights.

[0063] The height of the terminal device can be a height relative to the ground, or a height relative to the sea level, or a height relative to a certain reference point. In one possible implementation, the height relative to the ground or the sea level can be referred to as an absolute height, and the height relative to a certain reference point can be referred to as a relative height.

[0064] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and implementation manners can be combined with each other, and the same or similar concepts or processes can not be described in some embodiments. It should be understood that the functions explained in the present application can be implemented by independent hardware circuits, software running in combination with a processor / microprocessor or a general-purpose computer, a special integrated circuit, and / or one or more digital signal processors. When the present application is described as a method, it can also be implemented in a computer processor and a memory coupled to the processor.

[0065] The cell topology at different heights of the terminal device is different, that is, the neighboring cells corresponding to the cell at different heights are different; and the cell coverage at different heights of the cell can also be different, for example, Figure 1A As shown in the figure, G represents the ground, H1 and H2 are height information, used to identify high altitude, and H2>H1. Taking Figure 1A For example, the cell 3 in the figure, the neighboring cells of the cell 3 on the ground are the cell 2 and the cell 4; the neighboring cells of the cell 3 at the height of H1 are the cell 4 and the cell 5; the neighboring cells of the cell 3 at the height of H2 are the cell 1 and the cell 5, that is, the neighboring cells corresponding to the cell 3 at different heights are different. On the other hand, although the cell 3 is adjacent to the cell 5 at H1 and H2, the coverage of the cell 3 and the cell 5 at H1 and H2 is different, that is, at different heights, the coverage of the same cell is different.

[0066] To facilitate understanding of the embodiments in the present application, first, some concepts or terms related to the present application are briefly described.

[0067] 1. Cell reselection: when the terminal device resides in a cell, as the terminal device moves, the terminal device can change to reside in another suitable cell, for example, another cell with higher priority or better signal, which is the cell reselection process.

[0068] Exemplarily, the parameters related to the cell reselection include:

[0069] a. cellSelectionInfo in system information block 1 (SIB1), i.e. the parameters related to cell selection of the current serving cell, including at least one of: q-RxLevMin, q-RxLevMinOffset, q-RxLevMinSUL, q-QualMin and q-QualMinOffset.

[0070] b. cellReselectionInfoCommon, cellReselectionServingFreqInfo, intraFreqCellReselectionInfo of system information block 2 (SIB2).

[0071] Wherein, cellReselectionInfoCommon is the common information for inter-frequency\inter-RAT cell reselection, which can include one or more of the following parameters: q-Hyst, speedStateReselectionPars;

[0072] cellReselectionServingFreqInfo is the common information for non-intra-frequency cell, i.e. the common information for inter-frequency\inter-RAT cell reselection, which can include at least one of the following parameters: cell reselection priority, cell reselection sub-priority, s-NonIntraSearchP, s-NonIntraSearchQ, threshServingLowP, threshServingLowQ, etc.

[0073] intraFreqCellReselectionInfo is the information for intra-frequency cell reselection, which can include at least one of the following parameters: q-RxLevMin, q-RxLevMinSUL, q-QualMin, s-IntraSearchP, s-IntraSearchQ, t-ReselectionNR, etc.

[0074] c. intraFreqNeighCellList and intraFreqBlackCellList in system information block 3 (SIB3).

[0075] Wherein, the intraFreqNeighCellList is a same frequency neighbor cell information list, and the list includes at least one same frequency neighbor cell information, and the same frequency neighbor cell information includes a cell identifier and a cell reselection related parameter. The intraFreqBlackCellList is a same frequency neighbor cell blacklist.

[0076] d. interFreqCarrierFreqList in system information block type 4 (SIB4).

[0077] Wherein, the interFreqCarrierFreqList is an inter-frequency cell reselection related information, and specific parameters include inter-frequency frequency point information, corresponding frequency band information, and a corresponding cell reselection related parameter.

[0078] Optionally, the above-mentioned various parameters can be further referred to 3GPP standard protocol TS 38304v1540, but the embodiments of the present application are not limited thereto.

[0079] 2. Tracking area code (TAC): a number of a tracking area. The TAC is used to identify a tracking area, and the TAC is not a globally unique identifier, but a unique identifier of the same operator.

[0080] 3. Tracking area identity (TAI): composed of a public land mobile network identity (PLMN ID) and a TAC. The TAI is used to identify a tracking area, and the TAI is a globally unique identifier.

[0081] 4. Radio access network based notification area code (RNAC): a number of a radio access network based notification area. Radio access network based notification area identity: composed of a PLMN ID, a TAC and a RNAC. The radio access network based notification area identity is used to identify a radio access network based notification area, and the radio access network based notification area identity is a globally unique identifier.

[0082] Figure 3 An interaction schematic diagram of a communication method 300 provided by the embodiments of the present application. Figure 3 The communication method is illustrated by taking a first network device and a terminal device as the execution subject of the interaction schematic, but the embodiments of the present application are not limited to the execution subject of the interaction schematic.

[0083] It can be understood that Figure 3 The steps or procedures implemented by the first network device in the method can also be implemented by a chip, a chip system, or a processor, etc. supporting the first network device to implement the method. Figure 3 The steps or procedures implemented by the terminal device in the method can also be implemented by a chip, a chip system, or a processor, etc. supporting the terminal device to implement the method.

[0084] As shown in Figure 3 The method 300 of the embodiment can include the following steps:

[0085] Operation 320: The terminal device determines height information.

[0086] In a possible implementation, the height information is a height range, that is, the terminal device determines a height range according to a current height.

[0087] In another possible implementation, the height information is a height level, that is, the terminal device determines a height level according to a current height and a height threshold. It can be understood that the height threshold can be predefined or sent by the network device. It can be easily understood that the height information can also be referred to as a height factor, a height parameter, etc., and the embodiments of the present application are not limited thereto.

[0088] In yet another possible implementation, the height information is a height of the terminal device relative to the first network device.

[0089] Operation 330: The first network device sends configuration information to the terminal device, the configuration information including at least one height information and a first parameter corresponding to the at least one height information.

[0090] Correspondingly, the terminal device receives the configuration information sent by the first network device.

[0091] It can be easily understood that the order of the terminal device determining the height information and the terminal device receiving the configuration information sent by the first network device is not limited in the embodiments of the present application, that is, the operations 320 and 330 can also be performed simultaneously or the operation 320 can be performed after the operation 330.

[0092] The first parameter includes one or more of a tracking area parameter, a radio access network notification area parameter, a cell selection or reselection parameter, and a measurement configuration parameter.

[0093] In the embodiments of the present application, the first parameter in the configuration information sent by the first network device to the terminal device can include one of a tracking area parameter, a radio access network notification area parameter, a cell selection or reselection parameter, and a measurement configuration parameter, or a combination of the above parameters. It can be understood that the parameters can be sent in one configuration information or in multiple configuration information respectively.

[0094] The tracking area parameter can be a tracking area identifier (TAI) or a TAC, the radio access network notification area parameter can be a radio access network notification area identifier or a RNAC, and the measurement configuration parameter can be a configuration parameter required by the terminal for measurement (e.g., minimization of drive tests (MDT)).

[0095] In the embodiments of the present application, the first network device can configure corresponding first parameters for different height information and send them to the terminal device. It can be understood that the first parameters corresponding to the height information can also be referred to as the first parameters related to the height information, that is, the height information and the first parameters have a corresponding relationship.

[0096] The first network device can send the above configuration information to the terminal device in multiple different ways. In the embodiments of the present application, the first parameters having a corresponding relationship with the height information can be understood as that the terminal devices of different heights can select the first parameters corresponding to their own heights.

[0097] It can be understood that the corresponding relationship between the first parameters and the height information can have multiple different implementation manners. For example, the corresponding relationship can be implemented in the form of a table, or implemented in the form of a function, or implemented in other data structures, such as an array, a queue, a container, a stack, a linear list, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or the like.

[0098] In a possible implementation manner, the corresponding relationship between the first parameters and the height information of the terminal device is implemented in the form of a table. For example, the corresponding relationship between the first parameters and the height information can be shown in Table 1.

[0099] Table 1

[0100] First parameter list Altitude Parameter 1 Less than or equal to T hight1 ]] Parameter 2 greater than T hight1 ]]

[0101] In Table 1, T hight1 is a height threshold value, and parameter 1 and parameter 2 are different first parameters. It can be understood that T hight1 may be predefined or configured by the first network device for the terminal device. For example, T hight1The T hight1 may be pre-stored in a corresponding device (for example, a memory, a cache, a storage medium, or other device capable of storing data), and the terminal device reads the T hight1 from the device. The predefinition in the present application can be understood as definition, predefinition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning. The parameter 1 and the parameter 2 can be configured by the first network device for the terminal device.

[0102] As shown in Table 1, the terminal device selects (or determines) a target parameter corresponding to the height of the terminal device from a plurality of sets of first parameters corresponding to the height information. For example, when the height of the terminal device is less than or equal to a height threshold T hight1 , the terminal device selects the target parameter as the parameter 1; and when the height of the terminal device is greater than T hight1 , the terminal device selects the target parameter as the parameter 2. The present application does not limit the specific value of the height threshold, which can be 50 m, for example.

[0103] In another possible way, the height information can be fixed, which can be determined by the first network device or the network management. In the present application, it can be understood that the configuration information in the operation 330 can not carry the height information, and the plurality of parameters in the configuration information correspond to the height information in order. The arrangement order of the plurality of parameters can be arranged from high to low according to the height information, or arranged from low to high. The terminal device can select a target parameter corresponding to the order of the height information in the configuration information.

[0104] In another possible implementation, a plurality of height thresholds can be configured, that is, N thresholds are introduced, N is greater than or equal to 2, and correspondingly, the space is divided into N+1 parts from the height, and the corresponding first parameters can have N+1 sets. The parameter 1 to the parameter N+1 can be configured by the first network device for the terminal device.

[0105] For example, the correspondence between the N+1 sets of first parameters and the height information can be shown in Table 3.

[0106] Table 3

[0107] First parameter Corresponding altitude Parameter 1 Less than T hight1 ]] Parameter 2 greater than T hight1 less than or equal to T hight2 ]]> ... ... Parameter N greater than T hightN-1 less than or equal to T hightN ]]> Parameter N+1 greater than T hightN ]]>

[0108] As shown in Table 3, when the height of the terminal device is greater than T hight1 and less than or equal to T hight2 , the terminal device selects the target parameter as the parameter 2 from the N+1 sets of parameters received; when the height of the terminal device is greater than T hightN-1 and less than or equal to T hightNWhen the height of the terminal device is greater than T hightN When the height of the terminal device is greater than T hight1 , T hight2 , T hight3 ,... T hightN , the target parameter selected by the terminal device from the received N+1 sets of parameters is parameter N+1. It can be understood that the height threshold values T hight1 < T hight2 < T hight3 <... < T hightN . The difference between adjacent height threshold values can be the same or different. It can be understood that each item in the height threshold value column in Table 3 can also be arranged in descending order, that is, the height threshold values can also be arranged in descending order from large to small, and the embodiments of the present application are not limited.

[0109] For example, two height threshold values are introduced, which can be T hight1 = 50, T hight2 = 150, and the unit of the height threshold value can be meters (m) or kilometers, and in the embodiments of the present application, the unit of the height threshold value is taken as an example. The corresponding relationship between the first parameter and the height information can be shown in Table 4.

[0110] Table 4

[0111] First parameter Altitude Parameter 1 Less than 50 m Parameter 2 More than 50 m, less than or equal to 150 m Parameter 3 More than 150 m

[0112] As shown in Table 4, two threshold values are introduced in Table 4, and accordingly, the space is divided into three parts from the height, and the corresponding first parameter can have three sets, that is, when the height of the terminal device is less than or equal to 50 m, the target parameter selected by the terminal device is parameter 1, which can be understood as the parameter corresponding to the low-altitude or ground terminal device; when the height of the terminal device is greater than 50 m and less than or equal to 150 m, the target parameter selected by the terminal device is parameter 2; and when the height of the terminal device is greater than 150 m, the target parameter selected by the terminal device is parameter 3.

[0113] In another possible implementation, the terminal device determines the height information (height level), that is, the height information is in the form of a height level, and the terminal device determines the first parameter corresponding to the current height of the terminal device according to the corresponding relationship between the height level and the first parameter. A plurality of height levels can be configured, for example, N levels are introduced, N is greater than or equal to 2, and accordingly, the space is divided into N parts from the height, and the corresponding first parameter can have N sets. Parameter 1 to parameter N can be configured by the first network device for the terminal device.

[0114] For example, the correspondence between the N sets of first parameters and the height information can be shown in Table 5.

[0115] Table 5

[0116] Altitude class First parameter First class Parameter 1 Second class Parameter 2 ... ... Nth class Parameter N

[0117] It can be understood that the division of the height level can have various implementations, and optionally, the division of the height level is predefined. Optionally, the height level is determined by the first network device, that is, the first network device configures the height level to the terminal device, or the first network device indicates the rule of the height level to the terminal device. Similar to the height threshold value described above, the first network device can indicate the height level by sending the height threshold value to the terminal device. For example, the height threshold value T hight1 is sent to the terminal device, and the terminal device is in the first level if the current height of the terminal device is less than T hight1 , and the terminal device is in the second level if the current height of the terminal device is greater than T hight1 . Optionally, the first network device can send multiple height threshold values, that is, the terminal device can have multiple height levels, and different height levels correspond to different first parameters.

[0118] It can be easily understood that the height level can also be referred to as a height factor, a height rule, or a height metric, and the embodiments of the present application are not limited thereto.

[0119] In another possible implementation, the correspondence between the first parameter and the height information is implemented in the form of a function. For example, the first parameter is obtained by a function f(h), where h can be the absolute height of the terminal device or the relative height difference between the terminal device and the first network device. For example, one possible implementation of the function f(h) is as follows:

[0120]

[0121] where T hight1 , T hight2 ...T hightN are height threshold values, which can be predefined or configured by the first network device for the terminal device.

[0122] It should be noted that the embodiments of the present application do not limit other functions that can realize the correspondence between the first parameter and the height information, or other implementations of the functions.

[0123] Optionally, the above configuration information can be carried in a broadcast message. It can be understood that the above configuration information can also be carried by other messages, such as an RRC reconfiguration message.

[0124] The terminal device determines the target parameter used at the current height according to the height information, or the terminal device determines the target parameter according to the height information and the correspondence between the height information and the first parameter. It can be understood that, in the embodiments of the present application, the terminal device determines the target parameter, which can also be referred to as the terminal device obtaining the target parameter.

[0125] In operation 320, the terminal device determines the height information corresponding to the height of the terminal device according to the height threshold value. Further, the terminal device obtains the target parameter corresponding to the height information of the terminal device by combining the correspondence between the first parameter received in operation 330 and the height information, which can improve the user experience of users at different heights.

[0126] For example, the first parameter can be a cell reselection / selection parameter. Optionally, all parameters in the cell reselection / selection parameter can have a correspondence with the height information, or part of the parameters in the cell reselection / selection parameter can have a correspondence with the height information.

[0127] After the terminal device determines the cell reselection / selection parameter corresponding to the height information of the terminal device in the first parameter in the configuration information, the terminal device can perform cell reselection / selection according to the cell reselection / selection parameter.

[0128] By the method 300 in the embodiment, the first network device configures different cell selection / reselection parameters for the terminal device according to different heights, fully considers different cell topologies, and improves the reliability of cell reselection.

[0129] In a wireless communication network, for a terminal device in an idle state, the network device provides a terminal device with a tracking area information (TAI) list or a TAC. The TAI is composed of a PLMN ID and a TAC. In the embodiments of the present application, the first network device can configure multiple sets of tracking area parameters corresponding to different height information, that is, the first network device configures multiple sets of tracking area identifiers corresponding to height information for the terminal device. Optionally, in the embodiments of the present application, the first parameter can be a tracking area parameter. After the terminal device determines the tracking area parameter corresponding to the height information of the terminal device in the first parameter, when the location information of the terminal device changes, the terminal device can determine whether to trigger a tracking area update according to the tracking area parameter.

[0130] By the method 300 in the embodiment, the first network device configures multiple sets of different tracking area parameters for the terminal device according to different heights, which avoids the ping-pong problem of the terminal device moving repeatedly in two tracking areas due to the mismatch of the tracking area parameters.

[0131] For a terminal device in an inactive state, a network device provides the terminal device with a radio access network notification area (RNA) identifier list or RNA C, which is composed of a PLMN ID, a TAC, and a RAN area code. After receiving the RNA identifier list or RNA C, the terminal device may trigger a radio access network-based notification area update (RNAU) if the RNA of a cell after reselection does not belong to the RNA list during subsequent movement. Optionally, in an embodiment of the present application, the first parameter can be a radio access network notification area parameter, and the radio access network notification area parameter includes a radio access network notification area identifier. After determining the radio access network notification area parameter corresponding to the height information of the terminal device in the first parameter, the terminal device can determine whether to trigger the radio access network-based notification area update according to the radio access network notification area parameter when the location information of the terminal device changes.

[0132] Through the method 300 in this embodiment, the first network device configures multiple sets of radio access network notification area parameters corresponding to different height information for the terminal device, which can avoid the terminal device from frequently triggering the radio access network-based notification area update at different heights.

[0133] Optionally, in an embodiment of the present application, the first parameter can be a measurement configuration parameter. Through the method 300 in this embodiment, the first network device configures multiple sets of measurement configuration parameters corresponding to different height information for the terminal device, or the terminal device can perform measurement according to the height information of the terminal device, that is, the terminal device can perform measurement on different cells at different heights.

[0134] Optionally, in an embodiment of the present application, the measurement configuration parameter can include one or more of an MDT measurement configuration parameter and a quality of service (QoS) measurement configuration parameter, or the measurement configuration parameter can also include a configuration parameter for measuring power.

[0135] Exemplarily, when the first parameter is a measurement configuration parameter, a possible implementation manner of an embodiment of the present application is shown in Table 6. The terminal device receives the configuration information sent by the first network device, and the configuration information includes the measurement configuration parameter, the height threshold value, and the correspondence between the height threshold value and the measurement configuration parameter.

[0136] Table 6

[0137] Measurement configuration parameter Corresponding altitude Measurement configuration parameter 1 Less than T hight1 ]] Measurement configuration parameter 2 greater than T hight1 less than or equal to T hight2 ]] Measurement configuration parameter 3 greater than T hight2 ]]>

[0138] As shown in Table 6, optionally, the measurement configuration parameter 1, the measurement configuration parameter 2 and the measurement configuration parameter 3 can be contained in the configuration information sent by the first network device, and the measurement configuration parameter 1 can be a measurement white list and / or a measurement black list, for example, a white cell list 1 and / or a black cell list 1. The white cell list 1 and / or the black cell list 1 can contain the identity of a cell, and the identity information of the cell can include one or more of a physical cell identifier (PCI), a frequency or a cell global identification (CGI). That is, when the terminal device determines to perform measurement according to the measurement configuration parameter 1 according to the height information, the terminal device can only perform measurement on the cells in the white cell list 1, and it can also be understood that when the height information of the terminal device corresponds to the target parameter of the measurement configuration parameter 1, the terminal device performs measurement on the cells in the white cell list 1 and does not perform measurement on the cells in the black cell list 1, so as to improve the measurement efficiency of the terminal device. It can be understood that the implementation manner of the measurement configuration parameter 2 or 3 is similar to that of the measurement configuration parameter 1, and details are not described herein.

[0139] It can be easily understood that Table 6 is an example of an implementation manner of Table 3 described in the method 300, that is, an example of the correspondence between the first parameter and the height information in the method 300, and the implementation manner of the correspondence between the first parameter and the height information can also be in the form of a function, and the embodiments of the present application are not limited thereto.

[0140] According to the method provided in the embodiments of the present application, the first network device sends at least one set of first parameters to the terminal device, the first parameters correspond to the height information, the terminal device determines the height information according to the height of the terminal device, and further obtains the target parameter corresponding to the height information. That is, the terminal device obtains the first parameter corresponding to the height of the terminal device as the target parameter in the at least first parameters related to the height information sent by the first network device, so as to improve the experience of users at different heights.

[0141] Optionally, the method 300 can further include an optional operation 310: the terminal device sends measurement information to the first network device, the measurement information at least including the cell identity and the height corresponding to the cell, and the measurement information can further include the measurement result information corresponding to the cell. The terminal device can measure one or more cells, and the cell includes a serving cell and / or a neighbor cell. One or more cells in the measurement information can be a cell satisfying a preset criterion.

[0142] Optionally, the measurement information can be obtained based on event measurement or periodic measurement.

[0143] Optionally, the terminal device can obtain the measurement information at intervals of a certain height. Optionally, the terminal device can autonomously decide to perform measurement, or the terminal device can perform measurement based on an indication of the network device.

[0144] In a possible manner, the first network device updates the neighbor cell information according to the measurement information in operation 310, that is, the first network device can maintain the neighbor cell relationship according to the height information. Thus, the first network device has more accurate neighbor cell relationship information. Optionally, the first network device can determine the configuration information sent in operation 330 according to the maintained neighbor cell relationship, for example, according to the measurement information containing the height information in operation 310, the correspondence between the height information and the first parameter in the configuration information sent in operation 330 can be updated, so that the terminal device can select the corresponding target parameter according to the correspondence.

[0145] For example, it is assumed that the first network device receives the measurement information containing the height information including the identification of the cell and the corresponding height, for example, cell 1 corresponds to height level 1, and cell 2 corresponds to height level 2. The first network device updates the neighbor cell relationship according to the configuration information to add cell 1 in the cell corresponding to height level 1, and add cell 2 in the cell corresponding to height level 2.

[0146] Optionally, the terminal device can report the height information to the first network device while reporting the global cell identification code to the first network device. Alternatively, the terminal device can report the height information to the first network device while reporting the MDT information. It can be understood that the method of the terminal device sending the measurement information containing the height information is similar to the method of the second network device sending the first information containing the height information in method 400, and thus further reference can be made to the description of method 400 below. The first network device can update the neighbor cell information by means of the measurement information containing the height information sent by the terminal device, so that the first network device can provide the configuration corresponding to the height information for the terminal device of different heights and the first network device can update the neighbor cell information.

[0147] Figure 4 An interaction schematic of a communication method 400 provided by an embodiment of the present application. Figure 4 The communication method is schematically illustrated by taking the first network device and the second network device as the execution subject of the interaction schematic, but the present application does not limit the execution subject of the interaction schematic.

[0148] It can be understood that, Figure 4The steps or processes implemented by the first network device can also be implemented by a chip, chip system, or processor supporting the first network device to implement the method. Figure 4 The steps or processes implemented by the second network device can also be implemented by a chip, chip system, or processor supporting the second network device to implement the method.

[0149] As shown in FIG. 4, the method 400 of this embodiment can include the following steps. Figure 4

[0150] Operation 410: The first network device receives first information sent by the second network device, the first information including neighbor cell information of the second network device and height information corresponding to the neighbor cell information.

[0151] Then, it can also be understood that the first information includes the correspondence between the neighbor cell information and the height information.

[0152] The neighbor cell information can be neighbor cell identification information or neighbor cell list information. The neighbor cell information can also include one or more of tracking area parameters or radio access network notification area parameters. The neighbor cell identification information can include a PCI, and can also include CGI and / or frequency point information.

[0153] In addition, the first information can also include serving cell information, where the serving cell refers to a cell belonging to the second network device, or a cell covered by the second network device. The serving cell can also be referred to as a cell of the second network device. A cell of another network device adjacent to the serving cell can be referred to as a neighbor cell.

[0154] That is, at the second network device, the neighbor cell information can be maintained according to the height information. The description of the height information can be referred to the related description of the embodiment, which will not be repeated here. Figure 3

[0155] It can be understood that the second network device can send the first information to the first network device when establishing an interface with the first network device. The second network device can also send the first information to the first network device after updating the neighbor cell relationship.

[0156] In one possible way, each cell has corresponding height information, that is, when exchanging neighbor cell information between network devices, height information is added for each cell.

[0157] Optionally, the height information carried in the neighbor cell information can be a height range. For example, height 1 in Table 7 can be less than or equal to H1, height 2 can be greater than H1 and less than or equal to H2, and height 3 can be greater than H2, where H1 and H2 are specific heights, and H2 > H1. Optionally, the values of H1 and H2 can be determined by the network device.​​

[0158] Table 7

[0159]

[0160] Optionally, the height information can also be a height threshold. Optionally, the height threshold can be fixed, i.e. all network devices comply with a unified threshold setting. Optionally, the height threshold can also be set by the network device.

[0161] In yet another possible implementation, the network devices interact the neighbor information based on the height information, and provide information of a neighbor list corresponding to each height information.

[0162] As shown in Table 8, the neighbor list 1 corresponds to a neighbor list for ground and low-altitude users, and the neighbor lists 2-3 correspond to neighbor lists for high-altitude users. Each neighbor list can correspond to a height information, and the design of the height information is similar to that in the embodiment shown in Table 7, and thus is not described herein again. Figure 3

[0163] Table 8

[0164]

[0165] The neighbor list information can be configured by the network management for the network device, and the network management can configure the neighbor list information for the second network device through network planning. Alternatively, the second network device can update the neighbor list information according to the neighbor information configured by the network management and the second message received from the first network device, or the second network device can update the neighbor list information according to the measurement information sent by the terminal device and carrying the cell identifier and the corresponding height.

[0166] It can be understood that the first network device can save the first information after receiving the first information from the second network device, and can use the first information to perform corresponding operations or processing. For example, the first network device can update the neighbor relationship maintained at the first network device according to the first information, i.e. the method of the embodiment of the present application can also include operation 420: the first network device updates the neighbor relationship. Then, the height information corresponding to the neighbor information can also be included in all or part of the neighbor relationship updated or maintained at the first network device.

[0167] ​It can be understood that the first network device can also send the neighboring cell relationship to the second network device by using a similar method. That is, the optional operation 430 can also be included: the first network device sends second information to the second network device, the second information including the neighboring cell information of the first network device and the height information corresponding to the neighboring cell information, and the implementation method of carrying the height information in the second information is similar to that in the operation 410. In the embodiment of the present application, after receiving the second information from the first network device, the second network device can save the second information, and can perform corresponding operations or processing according to the second information. For example, the optional operation 440 can also be included: the second network device updates the neighboring cell relationship of the second network device according to the second information. The height information corresponding to the neighboring cell information can also be included in all or part of the neighboring cell relationship maintained at the second network device.

[0168] In the embodiment of the present application, the neighboring cell information and the height information corresponding to the neighboring cell information are exchanged between the first network device and the second network device. Optionally, the tracking area parameters and the height information corresponding to the tracking area parameters, and / or the radio access network notification area parameters and the height information corresponding to the radio access network notification area parameters, and / or the measurement configuration information and the height information corresponding to the measurement configuration information can also be exchanged between the network devices in a similar manner, that is, Figure 4 The information exchanged in the embodiments shown can also be replaced by the tracking area parameters, and / or the radio access network notification area parameters, and / or the measurement configuration parameters, and the height information corresponding to these parameters, which will not be described herein.

[0169] The following describes the embodiments of the present application in combination with Figures 5 to 6 The apparatus provided by the embodiments of the present application is described in detail. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments, and therefore, the content not described in detail can be referred to the method embodiments described above, and some content will not be described again for the sake of brevity.

[0170] Figure 5 A communication apparatus 500 is shown, which implements the embodiments of the present application. The following describes the structure and functions of the communication apparatus 500 in combination with Figure 5 The structure and functions of the communication apparatus 500 are described. It should be understood that the communication apparatus 500 can implement the method embodiments of the present application. Figures 3 to 4The communication device 500 can be any function corresponding to the communication equipment in any of the embodiments shown in the figures. It can be the terminal device mentioned in the above embodiments, or a first network device or a second network device. The communication device 500 includes a transceiver unit 510. Optionally, the communication device may further include at least one processing unit 520. Optionally, the communication device may further include a storage unit 530, which can store data and / or instructions (or code or programs). Both the transceiver unit 510 and the processing unit 520 can interact with the storage unit 530. For example, the processing unit 520 can call data or instructions from the storage unit 530 to enable the communication device to implement the corresponding method.

[0171] It should be noted that the processing unit in the embodiments of this application may also be a processing module, a processing circuit, or a processor, and the transceiver unit may also be a transceiver module, a transceiver, a communication interface, or an input / output circuit, etc.

[0172] In one possible design, the communication device 500 can implement the corresponding operation of the terminal device in the above method embodiment. For example, it can be the terminal device or a component (such as a processor, chip, or chip system) configured in the terminal device.

[0173] For example, the communication device 500 can correspondingly implement the operations of the terminal device in the method 300 described above, and the units or modules in the communication device 500 can be used to execute the methods executed by the terminal device in method 300. Furthermore, each unit in the communication device 500 and the other operations and / or functions described above are respectively for implementing the corresponding processes of method 300.

[0174] For example, when the communication device corresponds to the operation of the terminal device in the implementation method 300, the processing unit 520 is used to determine the height information, which is related to the first parameter.

[0175] Optionally, the transceiver unit 510 is used to receive configuration information sent by the first network device, the configuration information including the correspondence between height information and the first parameter.

[0176] Optionally, the processing unit 520 is used to determine target parameters based on the current height of the terminal device, the target parameters including

[0177] Tracking area parameters, wireless access network notification area parameters, and measurement configuration parameters, or one or more of these.

[0178] Optionally, the transceiver unit 510 is used to send to the first network device information including the cell's identification information and the measurement information of the cell's corresponding altitude.

[0179] Optionally, the transceiver 510 is further configured to receive the height threshold value from the configuration information, and the processor 520 is further configured to determine the height information according to the current height of the terminal device and the height threshold value.

[0180] In another possible design, the communication apparatus 500 can correspond to the first network device in the above method 300, and the communication apparatus 500 can include units configured to perform the method executed by the first network device in the method 300. Also, each unit in the communication apparatus 500 and the other operations and / or functions described above can be configured to implement the corresponding procedures of the method 300.

[0181] When the communication apparatus 500 corresponds to the first network device in the method 300, the processor 520 is configured to determine the correspondence between the first parameter and the height information, and the transceiver 510 is configured to send, to the terminal device, configuration information including the first parameter, which is related to the height information.

[0182] Optionally, the transceiver 510 is configured to send, to the terminal device, a height threshold value, which is related to the height information. The processor 520 is further configured to determine the height information according to the current height of the terminal device and the height threshold value.

[0183] Optionally, the transceiver 510 is configured to receive, from the terminal device, measurement information including the identification information of a cell and the height corresponding to the cell. The processor 520 is further configured to update the neighbor relation according to the measurement information.

[0184] Optionally, the transceiver 510 is configured to receive, from a second terminal device, first information including the neighbor information of a second network device and the height information corresponding to the neighbor information. Optionally, the neighbor information of the second network device further includes one or more of a tracking area parameter or a radio access network notification area parameter. The processor 520 is further configured to update the neighbor relation according to the first information.

[0185] Optionally, the transceiver 510 is configured to send, to a second network device, second information including the neighbor information of the first network device and the height information corresponding to the neighbor information. Optionally, the neighbor information of the first network device further includes one or more of a tracking area parameter or a radio access network notification area parameter.

[0186] In another possible design, the communication apparatus 500 can correspond to the second network device in the above method 400, and the communication apparatus 500 can include units configured to perform the method executed by the second network device in the method 400. Also, each unit in the communication apparatus 500 and the other operations and / or functions described above can be configured to implement the corresponding procedures of the method 400.

[0187] When the communication device 500 corresponds to the second network device in method 400, the transceiver unit 510 is used to send the neighbor cell information of the second network device and the height information corresponding to the neighbor cell information to the first network device.

[0188] Optionally, the transceiver unit 510 is used to receive neighbor cell information of the first network device and the height information corresponding to the neighbor cell information from the first network device.

[0189] In one possible design, corresponding to the various possible implementations described above, the processing unit 520 can be a processor. The transceiver unit 510 can also be a transceiver device, for example... Figure 6 The transceiver 603 shown, or the transceiver unit 510, can also be a communication interface. The storage unit 640 can be a memory, such as... Figure 6 The memory 602 shown.

[0190] Based on the same technical concept, this application also provides a communication device for implementing the functions performed by the terminal device, the first network device, or the second network device in the above method embodiments. Figure 6 A schematic block diagram of a possible communication device 600 according to an embodiment of this application is shown. The communication device includes at least one processor 601 and a memory 602. Optionally, the communication device may further include a transceiver 603 and a system bus 604. The bus 604 may be a PCI bus or an EISA bus, etc., and the bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, Figure 6 The transceiver 603 is represented by a single thick line, but this does not imply that there is only one bus or one type of bus. The transceiver 603 is used by the communication device 600 to communicate and interact with other communication devices (such as wireless access network devices or terminal devices, which are not limited here), for example, exchanging control signaling and / or service data. The transceiver 603 can be implemented by circuitry with communication transceiver functionality. The memory 602 is used to store required program instructions and / or data. When the at least one processor executes the program instructions stored in the memory, the communication device performs the function of a terminal device in any design of method 300; or when the at least one processor executes the program instructions stored in the memory, the communication device performs the function of a network device (first network device or second network device) in any design of method 300. The at least one processor 601, the memory 602, and the transceiver 603 are coupled through the system bus 604.

[0191] The processor and transceiver described in various embodiments of the present application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed-signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n metal-oxide-semiconductor (NMOS), positive channel metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc. Alternatively, the processor can include one or more processors, such as one or more CPUs, which can be a single core CPU or a multi-core CPU in the case of a CPU. The transceiver is used to transmit and receive data and / or signals, and receive data and / or signals. The transceiver can include a transmitter for transmitting data and / or signals, and a receiver for receiving data and / or signals, and can also be a communication interface. The memory includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM), compact disc read-only memory (CD-ROM), and is used to store relevant instructions and / or data.

[0192] The embodiments of the present application also provide a computer readable storage medium having stored thereon computer instructions for implementing the method performed by the terminal device or the method performed by the network device in the above method embodiments.

[0193] For example, the computer program is executed by a computer, so that the computer can implement the method performed by the terminal device or the method performed by the network device in the above method embodiments.

[0194] The embodiment of the present application further provides a computer program product comprising instructions which, when executed by a computer, cause the computer to implement the method performed by the terminal device or the method performed by the network device in the above method embodiments.

[0195] The embodiment of the present application further provides a communication system comprising the network device and the terminal device in the above embodiments.

[0196] The explanations and beneficial effects of the related contents in any of the above communication devices can refer to the corresponding method embodiments provided above, and will not be repeated here.

[0197] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. For example, the computer can be a personal computer, a server or a network device. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available medium can be a magnetic medium (for example, floppy disk, hard disk, magnetic tape), an optical medium (for example, DVD) or a semiconductor medium (for example, solid state drive (SSD) and the like. For example, the foregoing available medium can include but is not limited to: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and various media that can store program codes.

[0198] It should be understood by those skilled in the art that various numbers such as first, second, and the like, involved in the present application are only used for the convenience of description and do not limit the scope of the embodiments of the present application. The specific values of the numbers, the specific values of the quantities, and the positions in the present application are only for the purpose of illustration and are not the only representation, and do not limit the scope of the embodiments of the present application. The various numbers such as first, second, and the like involved in the present application are only used for the convenience of description and do not limit the scope of the embodiments of the present application.

[0199] In the present application, an element expressed by a singular form is intended to represent "one or more" rather than "one and only one", unless otherwise specified. In the present application, "at least one" is intended to represent "one or more" and "a plurality" is intended to represent "two or more", unless otherwise specified.

[0200] In addition, the terms "system" and "network" are often used interchangeably in the present application. The term "and / or" in the present application is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, B exists alone, where A can be singular or plural, and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0201] The term "at least one of" or "at least one of" in the present application means all or any combination of the listed items, for example, "at least one of A, B, and C" can mean that A exists alone, B exists alone, C exists alone, A and B exist together, B and C exist together, A, B, and C exist together, where A can be singular or plural, B can be singular or plural, and C can be singular or plural.

[0202] It can be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A and B can be determined according to A. However, it should also be understood that the determination of B according to A does not mean that B is determined only according to A, but B can also be determined according to A and / or other information.

[0203] The same or similar parts among various embodiments in the present application can be mutually referred. In the various embodiments in the present application, and the various implementation manners / implementation methods / realization methods in each embodiment, if there is no special description and logical conflict, the terms and / or descriptions among different embodiments, and among the various implementation manners / implementation methods / realization methods in each embodiment are consistent and can be mutually referred, and the technical features in different embodiments, and in the various implementation manners / implementation methods / realization methods in each embodiment can be combined to form new embodiments, implementation manners, implementation methods, or realization methods according to their inherent logical relationship. The above-described implementation manners of the present application do not constitute a limitation on the protection scope of the present application.

[0204] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A communication method characterized by comprising: The method comprises: receiving configuration information sent by a first network device, the configuration information comprising a plurality of sets of first parameters corresponding to different height information of a same cell; determining target parameters according to a current height of a terminal device and the configuration information; the first parameters comprise one or more of tracking area codes and radio access network notification area codes.

2. The method of claim 1, wherein, the first parameters further comprise one or more of a list of same-frequency neighbor cell information, a same-frequency neighbor cell blacklist, and inter-frequency cell reselection related information.

3. The method of claim 1, wherein, the configuration information further comprises a height threshold value, and the determining of the target parameters according to the current height of the terminal device and the configuration information comprises: determining current height information according to the current height and the threshold value, and determining the target parameters according to the current height information and the configuration information.

4. The method according to any one of claims 1 to 3, characterized in that, the terminal device determines whether to trigger a tracking area update or a radio access network notification area update according to the first parameters when location information changes.

5. The method according to any one of claims 1 to 3, characterized in that, the height information comprises a height range or a height level.

6. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: sending measurement information to the first network device, the measurement information comprising identification information of a cell and a height corresponding to the cell, and the measurement information being used to update neighbor cell relations.

7. A communication method characterized by comprising: The method comprises: determining a plurality of sets of first parameters corresponding to different height information of a same cell; sending configuration information to a terminal device, the configuration information comprising the plurality of sets of first parameters corresponding to different height information of the same cell, and the first parameters comprising one or more of tracking area codes and radio access network notification area codes.

8. The method of claim 7, wherein, the first parameters further comprise one or more of a list of same-frequency neighbor cell information, a same-frequency neighbor cell blacklist, and inter-frequency cell reselection related information.

9. The method according to claim 7 or 8, characterized in that, the height information comprises a height range or a height level.

10. The method according to claim 7 or 8, characterized in that, The method further comprises: the configuration information comprising a height threshold value, and the height threshold value being related to the height information.

11. The method according to claim 7 or 8, characterized in that, The method further comprises: receiving measurement information from the terminal device, the measurement information comprising identification information of a cell and a height corresponding to the cell; updating neighbor cell information according to the measurement information.

12. The method of claim 7 or 8, wherein, The method further comprises: receiving first information from a second network device; the first information comprising neighbor cell information of the second network device and height information corresponding to the neighbor cell information; updating neighbor cell information according to the first information.

13. The method of claim 12, wherein, the first information further comprises service cell information, and the service cell comprises a cell belonging to the second network device or a cell covered by the second network device.

14. The method of claim 7 or 8, wherein, The method further comprises: sending second information to a second network device; the second information comprising neighbor cell information of a first network device and height information corresponding to the neighbor cell information.

15. A communications device, characterized by The apparatus comprises: a transceiver unit configured to receive configuration information sent by a first network device, the configuration information comprising a plurality of sets of first parameters corresponding to different height information of a same cell; a processing unit configured to determine target parameters according to a current height of a terminal device and the configuration information; the first parameters comprise one or more of tracking area codes and radio access network notification area codes.

16. The apparatus of claim 15, wherein, The first parameter further comprises one or more of a same-frequency neighbor cell information list, a same-frequency neighbor cell blacklist, and inter-frequency cell reselection related information.

17. The apparatus of claim 15, wherein, The configuration information further comprises a height threshold value, and the processing unit is further configured to determine current height information according to the current height and the threshold value, and determine the target parameter according to the current height information and the configuration information.

18. The apparatus of any of claims 15-17, wherein, The processing unit is further configured to determine whether to trigger a tracking area update or a radio access network notification area update according to the first parameter when the location information of the terminal device changes.

19. The apparatus of any one of claims 15-17, wherein, The height information comprises a height range or a height level.

20. The apparatus of any one of claims 15-17, wherein, The transceiver is further configured to send measurement information to the first network device, the measurement information comprising identification information of a cell and a height corresponding to the cell, and the measurement information being used to update neighbor cell relations.

21. A communications device, characterized by Comprising: a processing unit configured to determine a plurality of sets of first parameters corresponding to different height information for a same cell; a transceiver configured to send configuration information to a terminal device, the configuration information comprising the plurality of sets of first parameters corresponding to different height information for the same cell, and the first parameter comprising one or more of a tracking area code and a radio access network notification area code.

22. The apparatus of claim 21, wherein, The first parameter further comprises one or more of a same-frequency neighbor cell information list, a same-frequency neighbor cell blacklist, and inter-frequency cell reselection related information.

23. The apparatus of claim 21 or 22, wherein, The height information comprises a height range or a height level.

24. The apparatus of claim 21 or 22, wherein, The configuration information comprises a height threshold value, and the height threshold value is related to the height information.

25. The apparatus of claim 21 or 22, wherein the transceiver is further configured to receive measurement information from the terminal device, the measurement information comprising identification information of a cell and a height corresponding to the cell; the processing unit is further configured to update neighbor cell information according to the measurement information.

26. The apparatus of claim 21 or 22, wherein the transceiver is further configured to receive first information from a second network device, the first information comprising neighbor cell information of the second network device and height information corresponding to the neighbor cell information; the processing unit is further configured to update neighbor cell information according to the first information.

27. The apparatus of claim 26, wherein, The first information further comprises serving cell information, and the serving cell comprises a cell belonging to the second network device or a cell covered by the second network device.

28. The apparatus of claim 21 or 22, wherein, The transceiver is further configured to send second information to a second network device, the second information comprising neighbor cell information of the first network device and height information corresponding to the neighbor cell information.

29. A computer readable storage medium having stored thereon a computer program or instructions, characterized in that, The computer program or instructions, when executed, cause a computer to perform the method of any one of claims 1 to 14.

30. A computer program product, comprising computer program code in said computer program product, characterised in that, The computer program code, when executed on a computer, causes the computer to implement the method of any one of claims 1 to 14.

31. A chip, characterized by Comprising: a processor coupled to a memory, the memory being configured to store a program or instructions, the program or instructions, when executed by the processor, causing the chip to perform the method of any one of claims 1 to 14.

32. A communication system, characterized by The system comprises: The communication device of any one of claims 15 to 20, and / or the communication device of any one of claims 21 to 28.

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