Carrier determination method and device, user equipment, network equipment and storage medium

Abstract

The present invention discloses a carrier determination method and apparatus, user equipment, network equipment, and storage medium. The carrier determination method includes: determining the target beam where the user equipment is currently located based on the user equipment's location information and satellite ephemeris information; determining multiple carriers corresponding to the target beam based on system information broadcast by the network equipment; and determining a target carrier for transmitting a target message from among the multiple carriers corresponding to the target beam. In the present invention, the network equipment configures multiple carriers for each beam in the cell where the user equipment is located through the broadcasted system information. The user equipment determines the target beam where it is currently located based on its own location information and satellite ephemeris information, and determines the target carrier for transmitting the target message from among the multiple carriers configured by the network equipment for the target beam. Beam switching can be achieved through carrier switching, which can meet the need for frequent beam switching in satellite Internet of Things scenarios, thereby improving the stability of satellite communications.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a carrier determination method and device, a user equipment, a system information broadcasting method and device, a network device, and a storage medium. Background Art

[0002] The random access process of current terrestrial IoT protocols such as narrowband IoT NB-IoT or eMTC is as follows: Figure 1 As shown, the process consists of four steps: Msg1, Msg2, Msg3, and Msg4. Msg1 is the random access preamble sent by the user equipment (UE) to the network. Currently, the maximum number of Msg1 repetitions is 128. Before sending Msg1, the UE uses the narrowband reference signal (NRS) to obtain the current cell signal quality, such as RSRP (Reference Signal Received Power). The UE then compares the measured signal quality with the relevant threshold configured by the network to determine the current coverage level. Different coverage levels correspond to different PRACH (Physical Random Access Channel) resources (including the number of Msg1 repetitions). The UE determines the number of Msg1 repetitions based on its coverage level and randomly selects an uplink carrier configured with the corresponding PRACH resource to send Msg1. If the first attempt to send Msg1 fails, the UE will upgrade the coverage level (i.e., increase the number of Msg1 repetitions) and try again until it successfully receives Msg2 or exhausts the number of Msg1 repetitions corresponding to the coverage level.

[0003] After receiving Msg1, the network device instructs the UE to send the resources and related parameters of Msg3 (including subcarrier indication, Msg3 repetition number, MCS (Modulation and Coding Scheme) indication, etc.) through the random access response message Msg2-RAR. The random access response message Msg2-RAR is scheduled by DCI (Downlink Control Information). The UE first receives the downlink control information (i.e., RA-RNTI-scrambled DCI, which is used to indicate the transmission parameters of Msg2-RAR, including the receiving resource location, subcarrier indication, Msg3 repetition number, MCS indication, etc.), and then receives Msg2-RAR according to the downlink control information.

[0004] The UE sends Msg3 according to the relevant scheduling information of Msg3 indicated by Msg2-RAR. After sending Msg3, the UE uses the unique identifier carried in Msg3 to monitor PDCCH. After successfully decoding PDCCH, the UE receives the corresponding Msg4 according to the DCI information carried by PDCCH.

[0005] In the current terrestrial IoT protocol, the carrier determination mechanism for sending Msg1 is as follows: the UE randomly selects an uplink carrier from multiple uplink carriers configured with PRACH resources in the cell where it resides to send Msg1. However, in the NTN (Non Terrestrial Networks) scenario, a cell consists of multiple beams, and different beams correspond to different uplink carrier groups. As the satellite moves rapidly, the UE needs to frequently switch beams. The above-mentioned existing carrier determination mechanism for sending Msg1 is obviously no longer suitable for the satellite IoT scenario.

[0006] In addition, in the existing protocol for determining the carrier for receiving paging, the network device sends the configuration information about Paging through system information, including the Paging period, the number of PDCCH repetitions corresponding to the PO (Paging Occasion), N and Ns (where each discontinuous reception DRX period contains N paging frames PF, and each PF contains Ns POs) and other parameters. At the same time, the Paging weight of each carrier is also configured. These parameters are at the cell level, that is, the Paging parameter configuration of all carriers in the cell is the same. When the UE is in the Idle state, it can determine which carrier to monitor Paging based on the UE_ID, parameter N, parameter Ns and the weight of each carrier.

[0007] Similarly, in the satellite IoT scenario, as the satellite moves rapidly, the UE needs to frequently switch beams. The above-mentioned existing protocol for determining the reception of the Paging carrier is obviously no longer suitable for the satellite IoT scenario. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the defect that the existing terrestrial Internet of Things protocol cannot adapt to the satellite Internet of Things scenario, and to provide a carrier determination method and device, a user device, a system information broadcasting method and device, a network device and a storage medium.

[0009] The present invention solves the above technical problems through the following technical solutions:

[0010] A first aspect of the present invention provides a carrier determination method, comprising the following steps:

[0011] Determine the target beam where the user equipment is currently located according to the location information of the user equipment and the satellite ephemeris information;

[0012] Determining, based on system information broadcast by a network device, a plurality of carriers corresponding to the target beam; wherein the system information includes index configuration information of the plurality of carriers corresponding to each beam in the cell where the user equipment is located;

[0013] A target carrier for transmitting a target message is determined among a plurality of carriers corresponding to the target beam.

[0014] Optionally, the multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources, and the target message is a random access message;

[0015] The determining a target carrier for transmitting the target message from a plurality of carriers corresponding to the target beam specifically includes:

[0016] A target uplink carrier for sending a random access message is randomly determined from a plurality of uplink carriers corresponding to the target beam and configured with physical random access channel resources.

[0017] Optionally, the random access message includes a random access preamble code Msg1.

[0018] Optionally, the multiple carriers corresponding to each beam are all downlink paging carriers, the target message is a paging message, and the system information further includes a paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and configuration information such as a paging parameter corresponding to each beam;

[0019] The determining a target carrier for transmitting the target message from a plurality of carriers corresponding to the target beam specifically includes:

[0020] A target downlink paging carrier for receiving a paging message is determined among multiple downlink paging carriers corresponding to the target beam according to the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weight of each downlink paging carrier corresponding to the target beam.

[0021] Optionally, the paging parameters include the number of paging frames in each DRX cycle and the number of paging occasions in each paging frame.

[0022] A second aspect of the present invention provides a carrier determination device, including:

[0023] A target beam determination module is used to determine the target beam where the user equipment is currently located based on the location information of the user equipment and the satellite ephemeris information;

[0024] a first carrier determination module, configured to determine a plurality of carriers corresponding to the target beam based on system information broadcast by a network device; wherein the system information includes index configuration information of the plurality of carriers corresponding to each beam in the cell where the user equipment is located;

[0025] The second carrier determination module is configured to determine a target carrier for transmitting a target message from among multiple carriers corresponding to the target beam.

[0026] Optionally, the multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources, and the target message is a random access message;

[0027] The second carrier determination module is specifically configured to randomly determine a target uplink carrier for sending a random access message from a plurality of uplink carriers corresponding to the target beam and configured with physical random access channel resources.

[0028] Optionally, the multiple carriers corresponding to each beam are all downlink paging carriers, the target message is a paging message, and the system information further includes a paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and configuration information such as a paging parameter corresponding to each beam;

[0029] The second carrier determination module is specifically used to determine a target downlink paging carrier for receiving a paging message from multiple downlink paging carriers corresponding to the target beam based on the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weight of each downlink paging carrier corresponding to the target beam.

[0030] A third aspect of the present invention provides a user equipment, including:

[0031] at least one processor;

[0032] a memory communicatively coupled to the at least one processor; and

[0033] transceiver, used to communicate with other devices;

[0034] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the carrier determination method described in the first aspect.

[0035] A fourth aspect of the present invention provides a system information broadcasting method, comprising the following steps:

[0036] Broadcasting system information, wherein the system information includes index configuration information of multiple carriers corresponding to each beam in the cell where the user equipment is located;

[0037] The user equipment is the user equipment described in the third aspect.

[0038] Optionally, the multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources.

[0039] Optionally, the multiple carriers corresponding to each beam are all downlink paging carriers, and the system information also includes the paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and the paging parameters corresponding to each beam.

[0040] The fifth aspect of the present invention provides a system information broadcasting device, which is used to broadcast system information, wherein the system information includes index configuration information of multiple carriers corresponding to each beam in the cell where the user equipment is located, wherein the user equipment is the user equipment described in the third aspect.

[0041] Optionally, the multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources.

[0042] Optionally, the multiple carriers corresponding to each beam are all downlink paging carriers, and the system information also includes the paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and configuration information such as the paging parameters corresponding to each beam.

[0043] A sixth aspect of the present invention provides a network device, including:

[0044] at least one processor;

[0045] a memory communicatively coupled to the at least one processor; and

[0046] transceiver, used to communicate with other devices;

[0047] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the system information broadcasting method described in the fourth aspect.

[0048] The seventh aspect of the present invention provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to execute the carrier determination method described in the first aspect, or the system information broadcasting method described in the fourth aspect.

[0049] The positive progressive effect of the present invention is that the network device configures multiple carriers for each beam in the cell where the user equipment is located through the broadcast system information. The user equipment determines the current target beam based on its own location information and satellite ephemeris information, and determines the target carrier for transmitting the target message from the multiple carriers configured by the network device for the target beam. That is, beam switching can be achieved through carrier switching, which can meet the demand for frequent beam switching in the satellite Internet of Things scenario. Specifically, as the beam where the user equipment is located changes, the user equipment can determine the target carrier for transmitting the target message based on the current beam, thereby improving the stability of satellite communication and further expanding the coverage of communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 Schematic diagram of the random access process in the prior art.

[0051] Figure 2 A schematic diagram of a communication network architecture provided by an embodiment of the present invention.

[0052] Figure 3 This is a flowchart of a carrier determination method provided in Example 1 of the present invention.

[0053] Figure 4 This is a structural block diagram of a carrier determination device provided in Example 1 of the present invention.

[0054] Figure 5 A schematic diagram of the structure of a user equipment provided in Example 2 of the present invention. DETAILED DESCRIPTION

[0055] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0056] The following describes exemplary application scenarios of the embodiments of the present invention.

[0057] The technical solution of this invention can be applied to satellite communication systems. Figure 2 This is a schematic diagram of a communication network architecture provided by an embodiment of the present invention. Figure 2 As shown, user equipment 130 can directly communicate data with base station 110 on the satellite, and user equipment 130 can also communicate data with base station 120 via satellite relay. The network device involved in the embodiment of the present invention can be base station 110 on the satellite or base station 120.

[0058] The technical solution of this invention is also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, Vehicle-to-Everything (vehicle-to-anything communication) architecture and other architectures, and the embodiments of the present invention are not limited to this. The embodiments of the present invention are not limited to this. The base station in the embodiments of the present invention can be a communication network that provides communication services to the terminal, including a base station of a wireless access network, and can also include a base station controller of a wireless access network, and can also include equipment on the core network side. Among them, the base station controller is a device that manages the base station, such as the base station controller (BSC) in the 2G network, the radio network controller (RNC) in the 3G network, and can also refer to a device for controlling and managing base stations in future new communication systems.

[0059] In the embodiments of the present invention, user equipment (UE) may refer to various forms of access terminals, user units, user stations, mobile stations, mobile stations (MSs), remote stations, remote terminals, mobile devices, user terminals, terminal equipment, wireless communication devices, user agents, or user devices. The terminal equipment may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc., and the embodiments of the present invention are not limited thereto.

[0060] In the embodiments of the present invention, a base station (BS), also referred to as a base station device, is a device deployed in a radio access network (RAN) to provide wireless communication functions. For example, in 2G networks, the device providing base station functions includes a base transceiver station (BTS), in 3G networks, the device providing base station functions includes a NodeB, and in 4G networks, the device providing base station functions includes an evolved NodeB (eNB). In wireless local area networks (WLANs), the device providing base station functions is an access point (AP). In 5G New Radio (NR), the device providing base station functions includes a gNB and an evolved NodeB (ng-eNB). The gNB and terminals communicate using NR technology, while the ng-eNB and terminals communicate using Evolved Universal Terrestrial Radio Access (E-UTRA) technology. Both the gNB and ng-eNB can be connected to the 5G core network (CN). The base station in the embodiment of the present invention also includes equipment that provides base station functions in future new communication systems, etc. The embodiment of the present invention does not limit this.

[0061] In the embodiment of the present invention, a unidirectional communication link from a network device to a user device is defined as a downlink. Data transmitted on the downlink is downlink data. The transmission direction of downlink data is called the downlink direction. The user device receives downlink data via a downlink carrier. A unidirectional communication link from a user device to a network device is defined as an uplink. Data transmitted on the uplink is uplink data. The transmission direction of uplink data is called the uplink direction. The user device sends uplink data via an uplink carrier.

[0062] Example 1

[0063] Figure 3 This is a flowchart of the carrier determination method provided in this embodiment. This method can be performed by a carrier determination device, which can be implemented in software and / or hardware and can include part or all of a user device and a network device. The carrier determination method is described below with the user device and the network device as the execution entities.

[0064] like Figure 3 As shown, the carrier determination method provided in this embodiment includes the following steps S101 to S104:

[0065] Step S101: Determine the target beam where the user equipment is currently located according to the location information of the user equipment and the satellite ephemeris information.

[0066] In step S101, the user equipment can obtain its own location information based on the Global Navigation Satellite System (GNSS). Satellite ephemeris information can be received through system information broadcast by network equipment or pre-configured in the user equipment. Satellite ephemeris information may include satellite orbit information, satellite speed, and beam distribution information for each cell. Based on its own location information and satellite ephemeris information, the user equipment determines the target beam in which the user equipment is currently located. The target beam is the beam currently covering the user equipment.

[0067] Step S102: The network device broadcasts system information. The system information includes index configuration information for multiple carriers corresponding to each beam in the cell where the user equipment is located. In this embodiment, the network device configures multiple carriers for each beam in the cell where the user equipment is located, and sends the index configuration information for the multiple carriers corresponding to each beam by broadcasting a system message.

[0068] Step S103: The user equipment receives system information broadcast by the network device and determines, based on the system information, index configuration information for multiple carriers corresponding to the target beam. The user equipment determines the indexes of the multiple carriers corresponding to the target beam based on the received system information. The carrier corresponding to the target beam can be an uplink carrier or a downlink carrier.

[0069] Step S104: The user equipment determines a target carrier for transmitting a target message from a plurality of carriers corresponding to the target beam.

[0070] Step S105: The user equipment transmits a target message to the network device via the target carrier.

[0071] Understandably, in the NB-IoT protocol, the data transmission bandwidth between user equipment and network equipment is a physical resource block (PRB), which is also called a carrier. However, in the eMTC protocol, the data transmission bandwidth between user equipment and network equipment is a narrowband. It should be noted that if the IoT protocol is eMTC, the carrier in the embodiments of the present invention is equivalent to a narrowband.

[0072] In an optional embodiment, the multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources, i.e., PRACH resources, and the target message is a random access message. Step S104 specifically includes: the user equipment randomly determines a target uplink carrier for sending the randomly determined message from the multiple uplink carriers corresponding to the target beam and configured with physical random access channel resources.

[0073] In this embodiment, the user equipment can send a random access message to the network device via the target uplink carrier during the random access process, where the random access message may include a random preamble code Msg1. The network device configures multiple uplink carriers for each beam in the cell where the user equipment is located, and configures physical random access channel resources for these uplink carriers, thereby meeting the needs of user equipment for frequent beam switching in satellite IoT scenarios. Specifically, as the beam where the user equipment is located changes, the user equipment can determine the uplink carrier to send the random access message based on the current beam, thereby improving the stability of satellite communications.

[0074] In another optional embodiment, the multiple carriers corresponding to each beam are all downlink paging carriers, the target message is a paging message, and the system information also includes a paging weight for each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, as well as configuration information such as paging parameters corresponding to each beam. Step S104 specifically includes: determining a target downlink paging carrier for receiving the paging message from the multiple downlink paging carriers corresponding to the target beam based on the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weight of each downlink paging carrier corresponding to the target beam.

[0075] The paging parameters may include the number of paging frames PF in each DRX cycle and the number of paging occasions PO in each paging frame PF.

[0076] In a specific example, the user equipment's identification information is UE_ID, which is IMSI mod 1024. Each user's IMSI (International Mobile Subscriber Identity) is unique. The IMSI is represented by a sequence of digits 0 through 9 and is stored on the SIM / USIM card. It should be noted that if the user equipment does not have a SIM / USIM card inserted, there is no IMSI, and the UE_ID is fixed at 0.

[0077] In a specific implementation example, a target downlink paging carrier for receiving a paging message is determined from a plurality of downlink paging carriers corresponding to the target beam according to the following formula:

[0078] (floor(UE_ID / (N*Ns))mod W)<(W(0)+W(1)+…+W(n));

[0079] Wherein, floor is the floor function, mod is the remainder function, W(i) is the paging weight of the downlink paging carrier with carrier index i corresponding to the target beam, where i = 0, 1, 2, ..., n, and n is less than or equal to the number of downlink paging carriers corresponding to the target beam, W is the sum of the paging weights of all downlink paging carriers corresponding to the target beam, N and Ns are both paging parameters corresponding to the target beam, where N is the number of paging frames PF in each DRX cycle, and Ns is the number of paging opportunities PO in each paging frame PF.

[0080] It should be noted that the carrier index is incremented from 0 until the above formula is satisfied for the first time, that is, the left side of the formula is less than the right side of the formula, the carrier index X at this time is recorded, and then the downlink paging carrier with carrier index X is determined as the target downlink paging carrier.

[0081] In this embodiment, the network device separately configures paging weights and paging parameters for each beam in the cell where the user equipment is located, thereby meeting the needs of user equipment in the satellite Internet of Things scenario to frequently switch beams. Specifically, as the beam where the user equipment is located changes, the user equipment can determine the downlink paging carrier for receiving paging messages based on the current beam, thereby improving the stability of satellite communications.

[0082] This embodiment also provides a carrier determination device 40, such as Figure 4 As shown, it includes a target beam determination module 41, a first carrier determination module 42 and a second carrier determination module 43.

[0083] The target beam determination module is used to determine the target beam where the user equipment is currently located according to the position information of the user equipment and the satellite ephemeris information.

[0084] The first carrier determination module is used to determine multiple carriers corresponding to the target beam based on system information broadcast by a network device; wherein the system information includes index configuration information of multiple carriers corresponding to each beam in the cell where the user equipment is located.

[0085] The second carrier determination module is used to determine a target carrier for transmitting a target message from a plurality of carriers corresponding to the target beam.

[0086] In an optional embodiment, the multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources, and the target message is a random access message; the second carrier determination module is specifically used to randomly determine the target uplink carrier for sending the random access message among the multiple uplink carriers corresponding to the target beam and configured with physical random access channel resources.

[0087] In another optional implementation manner, the multiple carriers corresponding to each beam are all downlink paging carriers, the target message is a paging message, and the system information further includes a paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and configuration information such as paging parameters corresponding to each beam;

[0088] The second carrier determination module is specifically used to determine a target downlink paging carrier for receiving a paging message from multiple downlink paging carriers corresponding to the target beam based on the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weight of each downlink paging carrier corresponding to the target beam.

[0089] This embodiment also provides a system information broadcasting device, which is used to broadcast system information, wherein the system information includes index configuration information of multiple carriers corresponding to each beam in the cell where the user equipment is located, wherein the user equipment is the user equipment in the above embodiment.

[0090] In an optional implementation manner, the multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources.

[0091] In an optional embodiment, the multiple carriers corresponding to each beam are all downlink paging carriers, and the system information also includes the paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and configuration information such as the paging parameters corresponding to each beam.

[0092] It should be noted that the above-mentioned carrier determination device or system information broadcasting device can specifically be a separate chip, chip module or terminal, or a chip or chip module integrated into a terminal.

[0093] Regarding the various modules / units included in the carrier determination device or system information broadcasting device described in the above embodiments, they can be software modules / units, hardware modules / units, or partly software modules / units and partly hardware modules / units. For example, for various devices and products applied to or integrated in a chip, the various modules / units included therein can all be implemented in the form of hardware such as circuits, or at least some of the modules / units can be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in a chip module, the various modules / units included therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component of the chip module (such as a chip, circuit module, etc.) or in different components, or at least some of the modules / Unit can be implemented in the form of a software program, which runs on the processor integrated inside the chip module, and the remaining modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on the processor integrated inside the terminal, and the remaining modules / units can be implemented in the form of hardware such as circuits.

[0094] Example 2

[0095] Figure 5 This is a schematic diagram of the structure of a user equipment provided in this embodiment. The user equipment includes at least one processor, a memory communicatively connected to the at least one processor, and a transceiver for communicating with other devices. The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the carrier determination method described in Example 1. Figure 5 The user device 3 shown is only an example and should not limit the functions and scope of use of the embodiments of the present invention.

[0096] The user equipment in the embodiment of the present invention may be a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted terminal, a wearable device, etc.

[0097] The components of the user equipment 3 may include, but are not limited to: the at least one processor 4 mentioned above, the at least one memory 5 mentioned above, and a bus 6 connecting different system components (including the memory 5 and the processor 4).

[0098] The bus 6 includes a data bus, an address bus, and a control bus.

[0099] The memory 5 may include a volatile memory, such as a random access memory (RAM) 51 and / or a cache memory 52 , and may further include a read-only memory (ROM) 53 .

[0100] The memory 5 may also include a program / utility 55 having a set (at least one) of program modules 54, such program modules 54 including but not limited to: an operating system, one or more application programs, other program modules and program data, each of which or some combination may include an implementation of a network environment.

[0101] The processor 4 executes various functional applications and data processing by running the computer programs stored in the memory 5, such as the carrier determination method of embodiment 1 of the present invention.

[0102] The user device 3 may also communicate with one or more external devices 7 (e.g., keyboard, pointing device, etc.). Such communication may be performed via an input / output (I / O) interface 8. Furthermore, the user device 3 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 9. Figure 5 As shown, the network adapter 9 communicates with other modules of the user device 3 via the bus 6. It should be understood that although Figure 5 Not shown, other hardware and / or software modules may be used in conjunction with the user device 3, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems.

[0103] It should be noted that although several units / modules or sub-units / modules of the user equipment are mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above may be embodied in one unit / module. Conversely, the features and functions of one unit / module described above may be further divided and embodied by multiple units / modules.

[0104] Example 3

[0105] An embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to execute the carrier determination method in embodiment 1.

[0106] The readable storage medium may include, but is not limited to, a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0107] In a possible implementation manner, the present invention may also be implemented in the form of a program product, which includes program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the carrier determination method in embodiment 1.

[0108] The program code for executing the present invention may be written in any combination of one or more programming languages, and may be executed entirely on the user device, partially on the user device, as an independent software package, partially on the user device and partially on a remote device, or entirely on the remote device.

[0109] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A carrier determination method, characterized in that: The following steps are involved: Determine the target beam where the user equipment is currently located according to the location information of the user equipment and the satellite ephemeris information; Determining, based on system information broadcast by a network device, a plurality of carriers corresponding to the target beam; wherein the system information includes index configuration information of the plurality of carriers corresponding to each beam in the cell where the user equipment is located; determining a target carrier for transmitting a target message among a plurality of carriers corresponding to the target beam; The multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources, and the target message is a random access message; The determining a target carrier for transmitting the target message from a plurality of carriers corresponding to the target beam specifically includes: A target uplink carrier for sending a random access message is randomly determined from a plurality of uplink carriers corresponding to the target beam and configured with physical random access channel resources.

2. The carrier determination method according to claim 1, wherein: The random access message includes a random access preamble Msg1.

3. A carrier determination method, characterized in that: The following steps are involved: Determine the target beam where the user equipment is currently located according to the location information of the user equipment and the satellite ephemeris information; Determining, based on system information broadcast by a network device, a plurality of carriers corresponding to the target beam; wherein the system information includes index configuration information of the plurality of carriers corresponding to each beam in the cell where the user equipment is located; determining a target carrier for transmitting a target message among a plurality of carriers corresponding to the target beam; The multiple carriers corresponding to each beam are all downlink paging carriers, the target message is a paging message, and the system information further includes a paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and a paging parameter corresponding to each beam; The determining a target carrier for transmitting the target message from a plurality of carriers corresponding to the target beam specifically includes: A target downlink paging carrier for receiving a paging message is determined among multiple downlink paging carriers corresponding to the target beam according to the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weight of each downlink paging carrier corresponding to the target beam.

4. The carrier determination method according to claim 3, wherein: The paging parameters include the number of paging frames in each DRX cycle and the number of paging occasions in each paging frame.

5. A carrier determination device, characterized in that: include: A target beam determination module is used to determine the target beam where the user equipment is currently located based on the location information of the user equipment and the satellite ephemeris information; a first carrier determination module, configured to determine a plurality of carriers corresponding to the target beam based on system information broadcast by a network device; wherein the system information includes index configuration information of the plurality of carriers corresponding to each beam in the cell where the user equipment is located; a second carrier determination module, configured to determine a target carrier for transmitting a target message from a plurality of carriers corresponding to the target beam; The multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources, and the target message is a random access message; The second carrier determination module is specifically configured to randomly determine a target uplink carrier for sending a random access message from a plurality of uplink carriers corresponding to the target beam and configured with physical random access channel resources.

6. A carrier determination device, characterized in that: include: A target beam determination module is used to determine the target beam where the user equipment is currently located based on the location information of the user equipment and the satellite ephemeris information; a first carrier determination module, configured to determine a plurality of carriers corresponding to the target beam based on system information broadcast by a network device; wherein the system information includes index configuration information of the plurality of carriers corresponding to each beam in the cell where the user equipment is located; a second carrier determination module, configured to determine a target carrier for transmitting a target message from a plurality of carriers corresponding to the target beam; The multiple carriers corresponding to each beam are all downlink paging carriers, the target message is a paging message, and the system information further includes a paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and a paging parameter corresponding to each beam; The second carrier determination module is specifically used to determine the target downlink carrier for receiving the paging message from multiple downlink paging carriers corresponding to the target beam based on the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weight of each downlink paging carrier corresponding to the target beam.

7. A user equipment, characterized in that: include: at least one processor; a memory communicatively coupled to the at least one processor; as well as transceiver, used to communicate with other devices; The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the carrier determination method according to any one of claims 1 to 4.

8. A system information broadcasting method, characterized in that: The following steps are involved: Broadcasting system information, wherein the system information includes index configuration information of multiple carriers corresponding to each beam in the cell where the user equipment is located; The user equipment is the user equipment according to claim 7.

9. The system information broadcasting method according to claim 8, wherein: The multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources; or, The multiple carriers corresponding to each beam are all downlink paging carriers. The system information also includes the paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and the paging parameters corresponding to each beam.

10. A system information broadcasting device, characterized in that: The system information broadcasting device includes a processor, which is used to broadcast system information, wherein the system information includes index configuration information of multiple carriers corresponding to each beam in the cell where the user equipment is located, wherein the user equipment is the user equipment according to claim 7.

11. The system information broadcasting device according to claim 10, wherein: The multiple carriers corresponding to each beam are all uplink carriers configured with physical random access channel resources; or, The multiple carriers corresponding to each beam are all downlink paging carriers. The system information also includes the paging weight of each downlink paging carrier corresponding to each beam in the cell where the user equipment is located, and the paging parameters corresponding to each beam.

12. A network device, characterized in that: include: at least one processor; a memory communicatively coupled to the at least one processor; as well as transceiver, used to communicate with other devices; The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the system information broadcasting method according to claim 8 or 9.

13. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to enable the computer to execute the carrier determination method according to any one of claims 1 to 4, or the system information broadcasting method according to claim 8 or 9.

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