Carrier Determination Method and Apparatus, User Equipment, Network Equipment, and Storage Medium

Abstract

The present invention discloses a carrier determination method and apparatus, a user equipment, a network equipment, and a storage medium. Among them, the carrier determination method includes: receiving system information broadcast by a network equipment, where the system information includes the downlink carriers for transmitting narrowband reference signals corresponding to each beam in the cell where the user equipment is located and the index configuration information of the carriers associated therewith; determining a target downlink carrier according to the signal quality of the downlink carrier for transmitting the narrowband reference signal; and determining the carrier for transmitting a target message according to the carrier associated with the target downlink carrier. In the present invention, the network equipment configures, for each beam in the cell where the user equipment is located, the downlink carrier for transmitting the narrowband reference signal and the carrier associated therewith through the broadcast system information. The user equipment determines the target downlink carrier by measuring the signal quality, and determines the carrier for transmitting the target message according to the carrier associated therewith, thereby improving the stability of satellite communication and further expanding the communication coverage range.

Description

Technical Field

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

[0002] The current random access process of terrestrial network Internet of Things protocols such as Narrow Band Internet of Things (NB-IoT) or Enhanced Machine Type Communication (eMTC) Figure 1 is composed of four steps: Msg1, Msg2, Msg3, and Msg4 as shown. Msg1 is that the user equipment (UE) sends a random access preamble to the network equipment. Currently, the maximum number of repetitions of Msg1 transmission is 128. Before sending Msg1, the UE obtains the current cell signal quality, such as RSRP (Reference Signal Receiving Power), through the narrowband reference signal (NRS), and then compares the measured signal quality with relevant threshold values 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 repetitions of Msg1). The UE determines the number of repetitions of sending Msg1 according to the coverage level it determines, and randomly determines an uplink carrier configured with the corresponding PRACH resources to send Msg1. If the first transmission of Msg1 fails, the UE will upgrade the coverage level (i.e., increase the number of repetitions of Msg1) and retry until Msg2 is successfully received or the number of repetitions of Msg1 corresponding to the coverage level is tried out.

[0003] After the network equipment receives Msg1, it indicates the resources for the UE to send Msg3 and related parameters (including subcarrier indication, the number of repetitions of Msg3, 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., DCI scrambled by RA-RNTI, which is used to indicate the transmission parameters of Msg2-RAR, including the receiving resource location, subcarrier indication, the number of repetitions of Msg3, 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 the UE sends Msg3, it listens for the PDCCH using the unique identifier carried in Msg3. After successfully decoding the PDCCH, it receives the corresponding Msg4 according to the DCI information carried by the PDCCH.

[0005] In the current terrestrial Internet of Things protocol, the carrier determination mechanism for sending Msg1 is as follows: The UE randomly determines an uplink carrier from among multiple uplink carriers configured with PRACH resources in the cell where it camps 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. With the rapid movement of the satellite, the UE needs to frequently perform beam switching, and the above existing carrier determination mechanism for sending Msg1 obviously can no longer adapt to the satellite Internet of Things scenario.

[0006] In addition, in the existing protocol for determining the paging carrier to be received, the network device broadcasts the configuration information related to paging through system information, including parameters such as the paging period, the number of repetitions of the PDCCH 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 also configures the paging weight of each paging carrier. These parameters are at the cell level, that is, the paging parameter configurations of all carriers in the cell are the same. When the UE is in the Idle state, it can determine on which carrier in the cell where it camps to listen for paging based on the UE_ID, parameter N, parameter Ns, and the paging weight of each paging carrier.

[0007] Similarly, in the satellite Internet of Things scenario, with the rapid movement of the satellite, the UE needs to frequently perform beam switching, and the above existing protocol for determining the paging carrier to be received obviously can no longer adapt to the satellite Internet of Things 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 apparatus, a user equipment, a system information broadcast method and apparatus, a network device, and a storage medium.

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

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

[0011] Receive the system information broadcast by the network device, where the system information includes the index configuration information of the downlink carrier for transmitting the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, and the index configuration information of the carrier associated with the downlink carrier for transmitting the narrowband reference signal;

[0012] Determine the target downlink carrier according to the signal quality of the downlink carrier for transmitting the narrowband reference signal;

[0013] Determine the carrier for transmitting the target message according to the carrier associated with the target downlink carrier.

[0014] Optionally, the system information further includes a reference threshold of the signal quality; the determining the target downlink carrier according to the signal quality of the downlink carrier for transmitting the narrowband reference signal specifically includes:

[0015] If the signal quality of the downlink carrier for transmitting the narrowband reference signal is greater than the reference threshold, then use the downlink carrier as the target downlink carrier.

[0016] Optionally, if there are multiple downlink carriers for transmitting the narrowband reference signal whose signal quality is greater than the reference threshold, then determine the downlink carrier with the best signal quality among the multiple downlink carriers as the target downlink carrier.

[0017] Optionally, the carriers associated with the downlink carriers for transmitting the narrowband reference signal are all uplink carriers configured with physical random access channel resources, and the target message is a random access message;

[0018] The determining the carrier for transmitting the target message according to the carrier associated with the target downlink carrier specifically includes:

[0019] Randomly determine an uplink carrier for transmitting the random access message among the uplink carriers associated with the target downlink carrier and configured with physical random access channel resources.

[0020] Optionally, the random access message includes a random access preamble Msg1.

[0021] Optionally, the carriers associated with the downlink carriers for transmitting the narrowband reference signal are all downlink paging carriers, the target message is a paging message, and the system information further includes the paging weight of the downlink paging carrier associated with the downlink carrier for transmitting the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, and configuration information such as paging parameters corresponding to each beam;

[0022] The determining the carrier for transmitting the target message according to the carrier associated with the target downlink carrier specifically includes:

[0023] Determine a downlink paging carrier for receiving a paging message in the downlink paging carrier associated with the target downlink carrier according to the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weight of the downlink paging carrier associated with the target downlink carrier;

[0024] Wherein, the target beam is the beam corresponding to the target downlink carrier.

[0025] Optionally, all carriers associated with the downlink carrier transmitting the narrowband reference signal are downlink paging carriers, the target message is a paging message, and the system information further includes configuration information such as the paging weight of the downlink carrier transmitting the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, the paging weight of the downlink paging carrier associated with the downlink carrier transmitting the narrowband reference signal, and the paging parameters corresponding to each beam;

[0026] The determining of the carrier for transmitting the target message according to the carrier associated with the target downlink carrier specifically includes:

[0027] Determine a downlink paging carrier for receiving a paging message in the target downlink carrier and the downlink paging carrier associated with the target downlink carrier according to the identification information of the user equipment, the paging parameters corresponding to the target beam, the paging weight of the target downlink carrier, and the paging weight of the downlink paging carrier associated with the target downlink carrier;

[0028] Wherein, the target beam is the beam corresponding to the target downlink carrier.

[0029] Optionally, the paging parameters include the number of paging frames in each DRX cycle and the number of paging opportunities in each paging frame.

[0030] A second aspect of the present invention provides a carrier determination device, including:

[0031] A system information receiving module, configured to receive system information broadcast by a network device, where the system information includes index configuration information of the downlink carrier transmitting the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, and index configuration information of the carrier associated with the downlink carrier transmitting the narrowband reference signal;

[0032] A first carrier determination module, configured to determine a target downlink carrier according to the signal quality of the downlink carrier transmitting the narrowband reference signal;

[0033] A second carrier determination module, configured to determine a carrier for transmitting a target message according to the carrier associated with the target downlink carrier.

[0034] Optionally, the system information further includes a reference threshold of signal quality; the first carrier determination module is specifically configured to use the downlink carrier as the target downlink carrier when the signal quality of the downlink carrier transmitting the narrowband reference signal is greater than the reference threshold.

[0035] Optionally, the first carrier determination module is specifically configured to, when there are multiple downlink carriers transmitting the narrowband reference signal with signal quality greater than the reference threshold, determine the downlink carrier with the best signal quality among the multiple downlink carriers as the target downlink carrier.

[0036] Optionally, the carriers associated with the downlink carrier transmitting the narrowband reference signal are all uplink carriers configured with physical random access channel resources, and the target message is a random access message;

[0037] The second carrier determination module is specifically configured to randomly determine an uplink carrier for transmitting the random access message among the uplink carriers configured with physical random access channel resources associated with the target downlink carrier.

[0038] Optionally, the carriers associated with the downlink carrier transmitting the narrowband reference signal are all downlink paging carriers, the target message is a paging message, and the system information further includes paging weights of the downlink paging carriers associated with the downlink carriers transmitting the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, and configuration information such as paging parameters corresponding to each beam;

[0039] The second carrier determination module is specifically configured to determine a downlink paging carrier for receiving the paging message among the downlink paging carriers associated with the target downlink carrier according to the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weights of the downlink paging carriers associated with the downlink carrier transmitting the narrowband reference signal;

[0040] Wherein, the target beam is the beam corresponding to the target downlink carrier.

[0041] Optionally, the carriers associated with the downlink carrier transmitting the narrowband reference signal are all downlink paging carriers, the target message is a paging message, and the system information further includes paging weights of the downlink carriers transmitting the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, paging weights of the downlink paging carriers associated with the downlink carriers transmitting the narrowband reference signal, and configuration information such as paging parameters corresponding to each beam;

[0042] The second carrier determination module is specifically configured to determine a downlink paging carrier for receiving a paging message from among the target downlink carrier and the downlink paging carriers associated with the target downlink carrier according to the identification information of the user equipment, the paging parameters corresponding to the target beam, the paging weight of the target downlink carrier, and the paging weights of the downlink paging carriers associated with the target downlink carrier;

[0043] Wherein, the target beam is the beam corresponding to the target downlink carrier.

[0044] A third aspect of the present invention provides a user equipment, including:

[0045] At least one processor;

[0046] A memory communicatively connected to the at least one processor; and

[0047] A transceiver for communicating with other devices;

[0048] Wherein, the memory stores instructions executable 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.

[0049] A fourth aspect of the present invention provides a system information broadcasting method, including the following steps:

[0050] Broadcasting system information, wherein the system information includes index configuration information of downlink carriers for transmitting narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and index configuration information of carriers associated with the downlink carriers for transmitting narrowband reference signals;

[0051] Wherein, the user equipment is the user equipment described in the third aspect.

[0052] Optionally, the system information further includes a reference threshold of signal quality.

[0053] Optionally, the carriers associated with the downlink carriers for transmitting narrowband reference signals are all uplink carriers configured with physical random access channel resources.

[0054] Optionally, the carriers associated with the downlink carriers for transmitting narrowband reference signals are all downlink paging carriers, the target message is a paging message, and the system information further includes paging weights of the downlink paging carriers associated with the downlink carriers for transmitting narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and configuration information such as paging parameters corresponding to each beam.

[0055] Optionally, all carriers associated with the downlink carrier that transmits the narrowband reference signal are downlink paging carriers, the target message is a paging message, and the system information further includes configuration information such as the paging weight of the downlink carrier that transmits the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, the paging weight of the downlink paging carrier associated with the downlink carrier that transmits the narrowband reference signal, and the paging parameters corresponding to each beam.

[0056] A fifth aspect of the present invention provides a system information broadcasting apparatus, which is used to broadcast system information. Among them, the system information includes the index configuration information of the downlink carrier that transmits the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, and the index configuration information of the carrier associated with the downlink carrier that transmits the narrowband reference signal;

[0057] Among them, the user equipment is the user equipment described in the third aspect.

[0058] Optionally, the system information further includes a reference threshold of signal quality.

[0059] Optionally, all carriers associated with the downlink carrier that transmits the narrowband reference signal are uplink carriers configured with physical random access channel resources.

[0060] Optionally, all carriers associated with the downlink carrier that transmits the narrowband reference signal are downlink paging carriers, the target message is a paging message, and the system information further includes the paging weight of the downlink paging carrier associated with the downlink carrier that transmits the narrowband reference signal 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.

[0061] Optionally, all carriers associated with the downlink carrier that transmits the narrowband reference signal are downlink paging carriers, the target message is a paging message, and the system information further includes the paging weight of the downlink carrier that transmits the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, the paging weight of the downlink paging carrier associated with the downlink carrier that transmits the narrowband reference signal, and configuration information such as the paging parameters corresponding to each beam.

[0062] A sixth aspect of the present invention provides a network device, including:

[0063] At least one processor;

[0064] A memory communicatively connected to the at least one processor; and

[0065] A transceiver for communicating with other devices;

[0066] Wherein, 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 execute the system information broadcasting method described in the fourth aspect.

[0067] A seventh aspect of the present invention provides a non-transitory computer-readable storage medium storing computer instructions, where the computer instructions are used to cause the computer to execute the carrier determination method described in the first aspect or the system information broadcasting method described in the fourth aspect.

[0068] The positive and progressive effects of the present invention are as follows: The network device configures a downlink carrier for transmitting narrowband reference signals for each beam in the cell where the user equipment is located through the broadcast system information, and configures an associated carrier for the downlink carrier for transmitting narrowband reference signals. The user equipment determines the target downlink carrier according to the signal quality of the downlink carrier for transmitting narrowband reference signals, and determines the carrier for transmitting the target message according to the carrier associated with the target downlink carrier, that is, beam switching can be achieved through carrier switching, which can meet the requirement of 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 downlink carrier according to the signal quality of the downlink carrier for transmitting narrowband reference signals measured in real time, and determine the carrier for transmitting the target message according to the carrier associated with the target downlink carrier, thereby improving the stability of satellite communication and further expanding the communication coverage. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 It is a schematic diagram of the random access process in the prior art.

[0070] Figure 2 It is a schematic diagram of a communication network architecture provided by an embodiment of the present invention.

[0071] Figure 3 It is a flowchart of a carrier determination method provided by Embodiment 1 of the present invention.

[0072] Figure 4 It is a schematic diagram of an application scenario of the carrier determination method provided by Embodiment 1 of the present invention.

[0073] Figure 5 It is another schematic diagram of an application scenario of the carrier determination method provided by Embodiment 1 of the present invention.

[0074] Figure 6 It is a block diagram of the structure of a carrier determination device provided by Embodiment 1 of the present invention.

[0075] Figure 7 It is a schematic diagram of the structure of a user equipment provided by Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0076] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments described herein.

[0077] Hereinafter, an exemplary application scenario of the embodiments of the present invention will be introduced.

[0078] The technical solution of the present invention is applicable to satellite communication systems. Figure 2 It is a schematic diagram of a communication network architecture provided by an embodiment of the present invention. As Figure 2 shown, the user equipment 130 can directly perform data communication with the base station 110 on the satellite, and the user equipment 130 can also perform data communication with the base station 120 through satellite relay forwarding. The network equipment involved in the embodiments of the present invention can be the base station 110 on the satellite or the base station 120.

[0079] The technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architectures, dual-link architectures, Vehicle-to-Everything architectures, etc. The embodiments of the present invention do not limit this. The embodiments of the present invention do not limit this. The base station in the embodiments of the present invention can be a communication network that provides communication services for terminals, including a base station of a radio access network, and can also include a base station controller of a radio access network, and can also include devices on the core network side. Among them, the base station controller is a device for managing base stations. For example, the base station controller (BSC) in a 2G network, the radio network controller (RNC) in a 3G network, and can also refer to a device for controlling and managing base stations in a future new communication system.

[0080] The user equipment (UE) in the embodiments of the present invention may refer to various forms of access terminals, user units, user stations, mobile stations (MS), 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, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication function, computing device, or other processing devices connected to a wireless modem, in-vehicle device, wearable device, terminal equipment in the future 5G network, or terminal equipment in the future evolved Public Land Mobile Network (PLMN). The embodiments of the present invention are not limited thereto.

[0081] The base station (BS) in the embodiments of the present invention, also referred to as base station equipment, is a device deployed in the Radio Access Network (RAN) to provide wireless communication functions. For example, the equipment providing base station functions in the 2G network includes the base transceiver station (BTS), the equipment providing base station functions in the 3G network includes Node B, the equipment providing base station functions in the 4G network includes the evolved Node B (eNB), in the wireless local area networks (WLAN), the equipment providing base station functions is the access point (AP), the equipment providing base station functions in 5G New Radio (NR) is the gNB, and the next-generation evolved Node B (ng-eNB). Among them, the gNB and the terminal communicate using NR technology, and the ng-eNB and the terminal communicate using E-UTRA (Evolved Universal Terrestrial Radio Access) technology. Both the gNB and the ng-eNB can be connected to the 5G core network (CN). The base station in the embodiments of the present invention also includes equipment providing base station functions in future new communication systems, etc. The embodiments of the present invention do not limit this.

[0082] In the embodiments of the present invention, the unidirectional communication link from the network device to the user equipment is defined as the downlink, the data transmitted on the downlink is downlink data, the transmission direction of the downlink data is called the downlink direction, and the user equipment receives the downlink data through the downlink carrier; while the unidirectional communication link from the user equipment to the network device is the uplink, the data transmitted on the uplink is uplink data, the transmission direction of the uplink data is called the uplink direction, and the user equipment sends the uplink data through the uplink carrier.

[0083] Embodiment 1

[0084] Figure 3 FIG. is a schematic flowchart of the carrier determination method provided in this embodiment. This method can be executed by a carrier determination device, which can be implemented in a software and / or hardware manner, and the device can include part or all of the user equipment and the network device. The carrier determination method will be described below with the user equipment and the network device as the execution entities.

[0085] As Figure 3 shown, the carrier determination method provided in this embodiment includes the following steps S101 to S104:

[0086] Step S101: The network device broadcasts system information. Among them, the system information includes the index configuration information of the downlink carriers for transmitting narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and the index configuration information of the carriers associated with the downlink carriers for transmitting narrowband reference signals.

[0087] In step S101, the network device configures a downlink carrier for transmitting a narrowband reference signal (NRS) for each beam in the cell where the user equipment is located, and configures an associated carrier for the downlink carrier for transmitting the NRS, and distributes the index configuration information of the downlink carrier for transmitting the NRS and its associated carrier by broadcasting a system message.

[0088] Step S102: The user equipment measures the signal quality of the downlink carrier for transmitting the narrowband reference signal, and determines the target downlink carrier according to the measured signal quality. In a specific implementation, the user equipment receives the system information broadcast by the network device, determines the downlink carrier for transmitting the NRS according to the system information, and measures its signal quality, thereby determining the target downlink carrier.

[0089] Among them, the signal quality of the downlink carrier for sending the NRS may include at least one of the following: Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), and Received Signal Strength Indicator (RSSI).

[0090] In an alternative implementation of step S102, the system information broadcast by the network device further includes a reference threshold for signal quality. In this implementation, step S102 specifically includes: if the signal quality of the downlink carrier for sending the narrowband reference signal is greater than the reference threshold, then use the downlink carrier as the target downlink carrier.

[0091] In a specific implementation, if there are multiple downlink carriers for sending the narrowband reference signal whose signal quality is greater than the above reference threshold, then determine the downlink carrier with the best signal quality among the multiple downlink carriers as the target downlink carrier.

[0092] In a specific implementation, if there is no downlink carrier for sending the narrowband reference signal whose signal quality is greater than the above reference threshold, the user equipment does not need to determine the target downlink carrier.

[0093] Step S103: The user equipment determines the carrier for transmitting the target message according to the carrier associated with the target downlink carrier.

[0094] Step S104: The user equipment transmits the target message to the network device through the determined carrier.

[0095] It can be understood that in the NB-IoT Internet of Things protocol, the data transmission bandwidth between the user equipment and the network device is a Physical Resource Block (PRB), and a physical resource block is also called a carrier. However, in the eMTC Internet of Things protocol, the transmission bandwidth between the user equipment and the network device is a narrowband. It should be noted that if the Internet of Things protocol is eMTC, then the carrier in the embodiments of the present invention is equivalent to a narrowband.

[0096] In an alternative implementation, the carriers associated with the downlink carrier for sending the narrowband reference signal are all uplink carriers configured with Physical Random Access Channel resources, i.e., PRACH resources, and the target message is a random access message. The above step S103 specifically includes: randomly determining an uplink carrier for sending the random access message from among the uplink carriers associated with the target downlink carrier and configured with Physical Random Access Channel resources.

[0097] In this embodiment, the user equipment may send a random access message to the network equipment on an uplink carrier randomly determined through step S103 during the random access process, where the random access message may include a random preamble Msg1. The network equipment configures multiple associated uplink carriers for the downlink carriers that send NRSs corresponding to each beam in the cell where the user equipment is located, and configures physical random access channel resources for these uplink carriers, so as to meet the requirement of the user equipment 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 may determine the target downlink carrier according to the signal quality of the downlink carrier that sends NRSs measured in real time, and determine the uplink carrier for sending the random access message among the uplink carriers associated with the target downlink carrier, thereby improving the stability of satellite communication.

[0098] In the example as Figure 4 shown, the network equipment configures one downlink carrier (D11 / D12 / D13) for sending NRSs for each of the three beams in the cell where the user equipment is located, and configures two associated uplink carriers for each downlink carrier that sends NRSs, where PRACH resources have been configured for the associated uplink carriers. Specifically, downlink carrier D11 is associated with uplink carriers U1 and U2, downlink carrier D12 is associated with uplink carriers U3 and U4, and downlink carrier D13 is associated with uplink carriers U5 and U6. The user equipment measures the signal quality of downlink carriers D11, D12, and D13 respectively, and compares the measurement results with a reference threshold A, where the reference threshold A is included in the system information broadcast by the network equipment. The comparison results are as follows: the signal quality of downlink carrier D11 is greater than the reference threshold A, and the signal qualities of downlink carriers D12 and D13 are both less than the reference threshold A. The user equipment determines downlink carrier D11 as the target downlink carrier, and randomly determines one of the uplink carriers U1 and U2 associated with downlink carrier D11 for sending the random access preamble Msg1.

[0099] In an alternative optional embodiment, the carriers associated with the downlink carriers that send narrowband reference signals are all downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink paging carriers associated with the downlink carriers that send narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and configuration information such as paging parameters corresponding to each beam. The above step S103 specifically includes: determining, according to the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weight of the downlink paging carrier associated with the target downlink carrier, the downlink paging carrier for receiving the paging message among the downlink paging carriers associated with the target downlink carrier; where the target beam is the beam corresponding to the target downlink carrier.

[0100] In an alternative embodiment, all carriers associated with the downlink carrier transmitting the narrowband reference signal are downlink paging carriers, the target message is a paging message, and the system information further includes the paging weight of the downlink carrier transmitting the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, the paging weight of the downlink paging carrier associated with the downlink carrier transmitting the narrowband reference signal, and the paging parameter corresponding to each beam; the above step S103 specifically includes: determining, according to the identification information of the user equipment, the paging parameter corresponding to the target beam, the paging weight of the target downlink carrier, and the paging weight of the downlink paging carrier associated with the target downlink carrier, a downlink paging carrier for receiving the paging message from the target downlink carrier and the downlink paging carrier associated with the target downlink carrier; wherein, the target beam is the beam corresponding to the target downlink carrier.

[0101] It can be understood that the target downlink carrier can also be used to receive the paging message. In this embodiment, a carrier for receiving the paging message is determined from the target downlink carrier and its associated downlink paging carrier.

[0102] Wherein, the above paging parameter may include the number of paging frames PF in each DRX cycle and the number of paging opportunities PO in each paging frame PF.

[0103] In a specific example, the identification information of the user equipment is UE_ID, and its value is IMSI mod1024. Wherein, the IMSI (International Mobile Subscriber Identity) of each user is unique. The IMSI is represented by a sequence composed of the numbers 0 to 9 and is stored in the SIM / USIM card. It should be noted that if the user equipment does not insert the SIM / USIM card, then there is no IMSI, and at this time UE_ID is fixedly taken as 0.

[0104] In a specific example of the specific implementation, the carrier for receiving the paging message is determined from the target downlink carrier and its associated downlink paging carrier according to the following formula:

[0105] (floor(UE_ID / (N*Ns))mod W)<(W(0)+W(1)+…+W(n));

[0106] Where, floor is the floor function, mod is the remainder function, W(i) is the paging weight of the carrier with carrier index i in the target downlink carrier and its associated downlink paging carriers, where i = 0, 1, 2, ……, n, and n is less than or equal to the sum of the number of the target downlink carrier and its associated downlink paging carriers, W is the sum of the paging weights of all the downlink paging carriers associated with the target downlink carrier, N and Ns are both paging parameters corresponding to the target beam, where the target beam is the beam corresponding to the target downlink carrier, 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.

[0107] It should be noted that, starting from 0 and incrementing the carrier index in sequence until the above formula is first satisfied, that is, the left side of the formula is less than the right side of the formula, record the carrier index X at this time, and then determine that the carrier with carrier index X receives the paging message.

[0108] In this embodiment, the network device configures the paging weight and paging parameters for each beam in the cell where the user equipment is located, so as to meet the requirement of the user equipment frequently switching beams 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 downlink carrier according to the signal quality of the downlink carrier transmitting NRS measured in real time, and determine the carrier for receiving the paging message according to the beam corresponding to the target downlink carrier, thereby improving the stability of satellite communication.

[0109] In Figure 5In the example shown, the network device configures a downlink carrier (D21 / D22 / D23) for transmitting NRS for each of the three beams of the cell where the user equipment is located, and configures two associated downlink paging carriers for each downlink carrier transmitting NRS. Specifically, downlink carrier D21 is associated with downlink paging carriers D1 and D2, downlink carrier D22 is associated with downlink paging carriers D3 and D4, and downlink carrier D23 is associated with downlink paging carriers D5 and D6. The user equipment measures the signal quality of downlink carriers D21, D22, and D23 respectively, and compares the measurement results with a reference threshold B, where the reference threshold B is included in the system information broadcast by the network device. The comparison results are as follows: the signal quality of downlink carrier D22 is less than the reference threshold B, the signal qualities of downlink carriers D21 and D23 are both greater than the reference threshold B, and the signal quality of downlink carrier D21 is greater than the signal quality of downlink carrier D23. The user equipment determines the downlink carrier D21 with the best signal quality as the target downlink carrier, and determines a carrier from downlink carrier D21 and its associated downlink paging carriers D1 and D2 for receiving paging messages. Specifically, the carrier for receiving paging messages is determined according to the identification information UE_ID of the user equipment, the paging weight of downlink carrier D21, the paging weights of downlink paging carriers D1 and D2, and the paging parameters configured by the network device for the target beam. The target beam in this example is the beam corresponding to downlink carrier D21.

[0110] This embodiment also provides a carrier determination device 60, as Figure 6 shown, including a system information receiving module 61, a first carrier determination module 62, and a second carrier determination module 63.

[0111] The system information receiving module is used to receive the system information broadcast by the network device, where the system information includes the index configuration information of the downlink carriers for transmitting narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and the index configuration information of the carriers associated with the downlink carriers for transmitting narrowband reference signals.

[0112] The first carrier determination module is used to determine the target downlink carrier according to the signal quality of the downlink carrier transmitting the narrowband reference signal.

[0113] In an optional implementation manner, the system information further includes a reference threshold of the signal quality; the first carrier determination module is specifically used to use the downlink carrier as the target downlink carrier when the signal quality of the downlink carrier transmitting the narrowband reference signal is greater than the reference threshold.

[0114] In an alternative embodiment, the first carrier determination module is specifically configured to, when there are multiple downlink carriers transmitting narrowband reference signals with signal quality greater than the reference threshold, determine the downlink carrier with the best signal quality among the multiple downlink carriers as the target downlink carrier.

[0115] The second carrier determination module is used to determine the carrier for transmitting the target message according to the carrier associated with the target downlink carrier.

[0116] In an alternative embodiment, the carriers associated with the downlink carriers transmitting narrowband reference signals 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 an uplink carrier for transmitting the random access message among the uplink carriers configured with physical random access channel resources associated with the target downlink carrier.

[0117] In another alternative embodiment, the carriers associated with the downlink carriers transmitting narrowband reference signals are all downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink paging carriers associated with the downlink carriers transmitting narrowband reference signals 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.

[0118] The second carrier determination module is specifically configured to determine the downlink paging carrier for receiving the paging message among the downlink paging carriers associated with the target downlink carrier according to the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weight of the downlink paging carrier associated with the target downlink carrier; wherein, the target beam is the beam corresponding to the target downlink carrier.

[0119] In yet another alternative embodiment, the carriers associated with the downlink carriers transmitting narrowband reference signals are all downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink carriers transmitting narrowband reference signals corresponding to each beam in the cell where the user equipment is located, the paging weights of the downlink paging carriers associated with the downlink carriers transmitting narrowband reference signals, and configuration information such as paging parameters corresponding to each beam.

[0120] The second carrier determination module is specifically configured to determine the downlink paging carrier for receiving the paging message among the target downlink carrier and the downlink paging carriers associated with the target downlink carrier according to the identification information of the user equipment, the paging parameters corresponding to the target beam, the paging weight of the target downlink carrier, and the paging weight of the downlink paging carrier associated with the target downlink carrier.

[0121] Among them, the target beam is the beam corresponding to the target downlink carrier.

[0122] This embodiment also provides a system information broadcasting device, which is used to broadcast system information. Among them, the system information includes the index configuration information of the downlink carriers that send narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and the index configuration information of the carriers associated with the downlink carriers that send narrowband reference signals; among them, the user equipment is the user equipment in the above embodiment.

[0123] In an alternative embodiment, the system information further includes a reference threshold of signal quality.

[0124] In an alternative embodiment, the carriers associated with the downlink carriers that send narrowband reference signals are all uplink carriers configured with physical random access channel resources.

[0125] In another alternative embodiment, the carriers associated with the downlink carriers that send narrowband reference signals are all downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink paging carriers associated with the downlink carriers that send narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and the configuration information such as paging parameters corresponding to each beam.

[0126] In yet another alternative embodiment, the carriers associated with the downlink carriers that send narrowband reference signals are all downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink carriers that send narrowband reference signals corresponding to each beam in the cell where the user equipment is located, the paging weights of the downlink paging carriers associated with the downlink carriers that send narrowband reference signals, and the configuration information such as paging parameters corresponding to each beam.

[0127] It should be noted that the above carrier determination device or system information broadcasting device may specifically be a separate chip, chip module or terminal, or may be a chip or chip module integrated in the terminal.

[0128] Regarding each module / unit included in the carrier determination device or the system information broadcasting device described in the above embodiments, it can be a software module / unit, a hardware module / unit, or partially a software module / unit and partially a hardware module / unit. For example, for each device and product applied to or integrated into a chip, each module / unit included therein can 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 a software program that runs on a processor integrated inside the chip, and the remaining part of the modules / units can be implemented in the form of hardware such as circuits. For each device and product applied to or integrated into a chip module, each module / unit included therein can be implemented in the form of hardware such as circuits. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components of the chip module. Or, at least some of the modules / units can be implemented in the form of a software program that runs on a processor integrated inside the chip module, and the remaining part of the modules / units can be implemented in the form of hardware such as circuits. For each device and product applied to or integrated into a terminal, each module / unit included therein can be implemented in the form of hardware such as circuits. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components inside the terminal. Or, at least some of the modules / units can be implemented in the form of a software program that runs on a processor integrated inside the terminal, and the remaining part of the modules / units can be implemented in the form of hardware such as circuits.

[0129] Embodiment 2

[0130] Figure 7 It is a schematic structural diagram 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. Wherein, the memory stores instructions executable 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 Embodiment 1. Figure 7 The displayed user equipment 3 is only an example and should not impose any limitation on the functions and usage scope of the embodiments of the present invention.

[0131] The user equipment in the embodiments of the present invention can 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.

[0132] The components of the user device 3 may include, but are not limited to: at least one of the above-mentioned processors 4, at least one of the above-mentioned memories 5, and a bus 6 connecting different system components (including the memory 5 and the processor 4).

[0133] The bus 6 includes a data bus, an address bus, and a control bus.

[0134] The memory 5 may include volatile memory, such as random access memory (RAM) 51 and / or cache memory 52, and may further include read-only memory (ROM) 53.

[0135] The memory 5 may further include a program / utility 55 having a set (at least one) of program modules 54. Such program modules 54 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include the implementation of a network environment.

[0136] The processor 4 executes various functional applications and data processing by running computer programs stored in the memory 5, such as the carrier determination method of Embodiment 1 of the present invention.

[0137] The user device 3 may also communicate with one or more external devices 7 (such as a keyboard, a pointing device, etc.). Such communication may be carried out through an input / output (I / O) interface 8. In addition, the user device 3 may also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 9. As Figure 7 shown, the network adapter 9 communicates with other modules of the user device 3 through the bus 6. It should be understood that although Figure 7 not shown in the figure, other hardware and / or software modules may be used in combination 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, etc.

[0138] It should be noted that although several units / modules or sub-units / modules of the user device are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. In fact, according to the embodiments of the present invention, the features and functions of two or more of the above-mentioned units / modules 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.

[0139] Embodiment 3

[0140] An embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions, and the computer instructions are used to cause the computer to execute the carrier determination method in Embodiment 1.

[0141] Among them, more specifically, the readable storage medium may include, but is not limited to: portable disks, hard disks, random access memories, read-only memories, erasable programmable read-only memories, optical storage devices, magnetic storage devices, or any suitable combination of the above.

[0142] In a possible implementation manner, the present invention can also be implemented in the form of a program product, which includes program code. When the program product runs on a terminal device, the program code is used to cause the terminal device to execute the carrier determination method in Embodiment 1.

[0143] Among them, the program code for executing the present invention can be written in any combination of one or more programming languages, and the program code can be executed entirely on the user device, partially on the user device, executed as an independent software package, partially on the user device and partially on a remote device, or entirely on a remote device.

[0144] Although the specific implementation manners of the present invention have been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A carrier determination method, characterized in that, it includes the following steps: Receiving system information broadcast by a network device, where the system information includes index configuration information of a downlink carrier for transmitting a narrowband reference signal corresponding to each beam in a cell where a user equipment is located, and index configuration information of a carrier associated with the downlink carrier for transmitting the narrowband reference signal; Determining a target downlink carrier according to the signal quality of the downlink carrier for transmitting the narrowband reference signal; Determining a carrier for transmitting a target message according to the carrier associated with the target downlink carrier.

2. The carrier determination method according to claim 1, characterized in that, the system information further includes a reference threshold of signal quality; the determining of the target downlink carrier according to the signal quality of the downlink carrier for transmitting the narrowband reference signal specifically includes: If the signal quality of the downlink carrier for transmitting the narrowband reference signal is greater than the reference threshold, then using the downlink carrier as the target downlink carrier.

3. The carrier determination method according to claim 2, characterized in that, If there are multiple downlink carriers for transmitting the narrowband reference signal whose signal quality is greater than the reference threshold, then determining the downlink carrier with the best signal quality among the multiple downlink carriers as the target downlink carrier.

4. The carrier determination method according to any one of claims 1-3, characterized in that, the carriers associated with the downlink carrier for transmitting the narrowband reference signal are all uplink carriers configured with physical random access channel resources, and the target message is a random access message; the determining of the carrier for transmitting the target message according to the carrier associated with the target downlink carrier specifically includes: Randomly determining an uplink carrier for sending a random access message among the uplink carriers configured with physical random access channel resources associated with the target downlink carrier.

5. The carrier determination method according to claim 4, characterized in that, the random access message includes a random access preamble Msg1.

6. The carrier determination method according to claim 1, characterized in that, the carriers associated with the downlink carrier for transmitting the narrowband reference signal are all downlink paging carriers, the target message is a paging message, and the system information further includes paging weights of the downlink paging carriers associated with the downlink carriers for transmitting the narrowband reference signal corresponding to each beam in the cell where the user equipment is located and paging parameters corresponding to each beam; the determining of the carrier for transmitting the target message according to the carrier associated with the target downlink carrier specifically includes: Determining a downlink paging carrier for receiving a paging message among the downlink paging carriers associated with the target downlink carrier according to the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weights of the downlink paging carriers associated with the target downlink carrier; wherein, the target beam is the beam corresponding to the target downlink carrier.

7. The carrier determination method according to claim 1, characterized in that, Carriers associated with the downlink carrier that transmits narrowband reference signals are all downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink carriers that transmit narrowband reference signals corresponding to each beam in the cell where the user equipment is located, the paging weights of the downlink paging carriers associated with the downlink carriers that transmit narrowband reference signals, and the paging parameters corresponding to each beam; Determining the carrier for transmitting the target message according to the carriers associated with the target downlink carrier specifically includes: Determining the downlink paging carrier for receiving the paging message from the target downlink carrier and the downlink paging carriers associated with the target downlink carrier according to the identification information of the user equipment, the paging parameters corresponding to the target beam, the paging weight of the target downlink carrier, and the paging weight of the downlink paging carrier associated with the target downlink carrier; Wherein, the target beam is the beam corresponding to the target downlink carrier.

8. The carrier determination method according to claim 6 or 7, characterized in that the paging parameters include the number of paging frames in each DRX cycle and the number of paging opportunities in each paging frame.

9. A carrier determination device, characterized in that comprising: A system information receiving module, configured to receive system information broadcast by a network device, wherein the system information includes the index configuration information of the downlink carriers that transmit narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and the index configuration information of the carriers associated with the downlink carriers that transmit narrowband reference signals; A first carrier determination module, configured to determine a target downlink carrier according to the signal quality of the downlink carriers that transmit narrowband reference signals; A second carrier determination module, configured to determine the carrier for transmitting the target message according to the carriers associated with the target downlink carrier.

10. The carrier determination device according to claim 9, characterized in that the system information further includes a reference threshold of signal quality; the first carrier determination module is specifically configured to use the downlink carrier as the target downlink carrier when the signal quality of the downlink carrier that transmits narrowband reference signals is greater than the reference threshold.

11. The carrier determination device according to claim 10, characterized in that the first carrier determination module is specifically configured to, when there are multiple downlink carriers that transmit narrowband reference signals and whose signal quality is greater than the reference threshold, determine the downlink carrier with the best signal quality among the multiple downlink carriers as the target downlink carrier.

12. The carrier determination device according to any one of claims 9-11, characterized in that carriers associated with the downlink carriers that transmit narrowband reference signals 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 an uplink carrier for transmitting the random access message from the uplink carriers configured with physical random access channel resources and associated with the target downlink carrier.

13. The carrier determination device according to any one of claims 9-11, characterized in that Carriers associated with the downlink carrier that transmits narrowband reference signals are all downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink paging carriers associated with the downlink carriers that transmit narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and the paging parameters corresponding to each beam; The second carrier determination module is specifically configured to determine, according to the identification information of the user equipment, the paging parameters corresponding to the target beam, and the paging weights of the downlink paging carriers associated with the target downlink carrier, a downlink paging carrier for receiving a paging message among the downlink paging carriers associated with the target downlink carrier; Wherein, the target beam is the beam corresponding to the target downlink carrier.

14. The carrier determination device according to any one of claims 9-11, characterized in that, Carriers associated with the downlink carrier that transmits narrowband reference signals are all downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink carriers that transmit narrowband reference signals corresponding to each beam in the cell where the user equipment is located, the paging weights of the downlink paging carriers associated with the downlink carriers that transmit narrowband reference signals, and the paging parameters corresponding to each beam; The second carrier determination module is specifically configured to determine, according to the identification information of the user equipment, the paging parameters corresponding to the target beam, the paging weight of the target downlink carrier, and the paging weights of the downlink paging carriers associated with the target downlink carrier, a downlink paging carrier for receiving a paging message among the target downlink carrier and the downlink paging carriers associated with the target downlink carrier; Wherein, the target beam is the beam corresponding to the target downlink carrier.

15. A user equipment, characterized in that, comprising: at least one processor; a memory communicatively connected to the at least one processor; and a transceiver for communicating with other devices; Wherein, the memory stores instructions executable 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 according to any one of claims 1-8.

16. A system information broadcasting method, characterized in that, comprising the following steps: Broadcasting system information, wherein the system information includes the index configuration information of the downlink carriers that transmit narrowband reference signals corresponding to each beam in the cell where the user equipment is located, and the index configuration information of the carriers associated with the downlink carriers that transmit narrowband reference signals; Wherein, the user equipment is the user equipment according to claim 15.

17. The system information broadcasting method according to claim 16, characterized in that, The system information further includes a reference threshold of signal quality.

18. The system information broadcasting method according to claim 16 or 17, characterized in that, Carriers associated with the downlink carrier that transmits narrowband reference signals are all uplink carriers configured with physical random access channel resources; or, All carriers associated with the downlink carrier that transmits the narrowband reference signal are downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink paging carriers associated with the downlink carriers that transmit the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, and the paging parameters corresponding to each beam; or, All carriers associated with the downlink carrier that transmits the narrowband reference signal are downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink carriers that transmit the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, the paging weights of the downlink paging carriers associated with the downlink carriers that transmit the narrowband reference signal, and the paging parameters corresponding to each beam.

19. A system information broadcasting apparatus, characterized in that, the system information broadcasting apparatus includes a system information broadcasting module, and the system information broadcasting module is configured to broadcast system information, wherein the system information includes the index configuration information of the downlink carriers that transmit the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, and the index configuration information of the carriers associated with the downlink carriers that transmit the narrowband reference signal; wherein, the user equipment is the user equipment according to claim 15.

20. The system information broadcasting apparatus according to claim 19, characterized in that, the system information further includes a reference threshold of signal quality.

21. The system information broadcasting apparatus according to claim 19 or 20, characterized in that, all carriers associated with the downlink carrier that transmits the narrowband reference signal are uplink carriers configured with physical random access channel resources; or, all carriers associated with the downlink carrier that transmits the narrowband reference signal are downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink paging carriers associated with the downlink carriers that transmit the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, and the paging parameters corresponding to each beam; or, all carriers associated with the downlink carrier that transmits the narrowband reference signal are downlink paging carriers, the target message is a paging message, and the system information further includes the paging weights of the downlink carriers that transmit the narrowband reference signal corresponding to each beam in the cell where the user equipment is located, the paging weights of the downlink paging carriers associated with the downlink carriers that transmit the narrowband reference signal, and the paging parameters corresponding to each beam.

22. A network device, characterized in that, comprising: at least one processor; a memory communicatively connected to the at least one processor; and a transceiver for communicating with other devices; wherein, the memory stores instructions executable 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 according to any one of claims 16-18.

23. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to execute the carrier determination method according to any one of claims 1-8, or the system information broadcast method according to any one of claims 16-18.

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