Information transmission method and apparatus, and device, system, chip and storage medium

Abstract

Provided in the present disclosure are an information transmission method and apparatus, and a device, a system, a chip and a storage medium. The method comprises: receiving first system information, wherein a terminal is located at a first beam position of a cell covered by a network device, and the first system information is different from system information of at least one beam position in the cell. Therefore, terminals at different beam positions or beam position groups can receive different types of system information, thereby improving the flexibility of system information configuration.

Description

Information transmission methods, devices, equipment, systems, chips and storage media Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to an information transmission method, apparatus, device, system, chip, and storage medium. Background Technology

[0002] In non-terrestrial communication systems, the design method of using cell-level system information as the smallest granularity is inherited from terrestrial network systems. However, compared to terrestrial network systems, non-terrestrial communication systems have a much larger coverage area, usually hundreds or even thousands of kilometers. The above design method is less flexible in non-terrestrial communication systems. Summary of the Invention

[0003] This disclosure provides an information transmission method, apparatus, device, system, chip, and storage medium.

[0004] In a first aspect, embodiments of this disclosure provide an information transmission method applied to a terminal, the method comprising: receiving first system information, wherein the terminal is located at a first wave position of a cell covered by a network device, and the first system information differs from system information of at least one wave position in the cell.

[0005] Secondly, embodiments of this disclosure provide an information transmission method applied to a network device. The method includes: sending first system information of a first wave position, wherein a terminal is located at a first wave position of a cell covered by the network device, and the first system information differs from system information received at least one wave position in the cell.

[0006] Thirdly, this disclosure provides an information transmission device applied to a terminal. The device includes a receiving module for receiving first system information, wherein the terminal is located at a first wave position of a cell covered by a network device, and the first system information differs from the system information of at least one wave position in the cell.

[0007] Fourthly, this disclosure provides an information transmission device applied to a network device. The device includes a transmission module for transmitting first system information of a first wave position, wherein a terminal is located at the first wave position of a cell covered by the network device, and the first system information differs from the system information of at least one wave position in the cell.

[0008] Fifthly, embodiments of this disclosure provide a communication system including a terminal and a network device, wherein the terminal is configured to execute the method disclosed in the first aspect of this disclosure, and the network device is configured to execute the method disclosed in the second aspect of this disclosure.

[0009] In a sixth aspect, embodiments of this disclosure provide a communication device, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the information transmission method disclosed in embodiments of this disclosure.

[0010] In a seventh aspect, embodiments of this disclosure provide a chip including one or more interface circuits and one or more processors; the interface circuits are configured to receive signals from the memory of a communication device and send the received signals to the processors, the received signals including computer instructions stored in the memory, and when the processor executes the computer instructions, the communication device performs the information transmission method disclosed in embodiments of this disclosure.

[0011] Eighthly, embodiments of this disclosure provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the information transmission method disclosed in embodiments of this disclosure.

[0012] Ninthly, embodiments of this disclosure provide a computer program product, including a computer program that, when executed by a processor, implements the information transmission method disclosed in embodiments of this disclosure.

[0013] The technical solutions provided by the embodiments of this disclosure have at least the following beneficial effects:

[0014] The terminal receives first system information, wherein the terminal is located in the first waveband of the cell covered by the network device, and the first system information differs from the system information of at least one waveband in the cell. This allows terminals located in different wavebands or waveband groups to receive different system information, increasing the flexibility of system information configuration.

[0015] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a schematic diagram of the architecture of a non-terrestrial communication system provided in an embodiment of this disclosure;

[0018] Figure 2 is an example diagram of a single-satellite single-cell network system provided in an embodiment of this disclosure;

[0019] Figure 3 is a flowchart illustrating an information transmission method provided in an embodiment of this disclosure;

[0020] Figure 4 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0021] Figure 5 shows an example of information transmission between the satellite-borne base station and the terminal.

[0022] Figure 6 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0023] Figure 7 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0024] Figure 8 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0025] Figure 9 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0026] Figure 10 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0027] Figure 11 shows an example of information transmission between the satellite-borne base station and the terminal (Figure 2).

[0028] Figure 12 is a schematic diagram of the process of updating system information when the terminal switches from the first wave position to the second wave position;

[0029] Figure 13 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0030] Figure 14 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0031] Figure 15 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure;

[0032] Figure 16 is a schematic diagram of the transmission of system information of wavelet level and wavelet group by network device;

[0033] Figure 17 shows an example of information exchange between network devices.

[0034] Figure 18 is an example of information exchange between network devices.

[0035] Figure 19 is a schematic diagram of the structure of an information transmission device provided in an embodiment of this disclosure.

[0036] Figure 20 is a schematic diagram of another information transmission device provided in an embodiment of this disclosure.

[0037] Figure 21 is a block diagram of a communication device for implementing an information transmission method according to an exemplary embodiment.

[0038] Figure 22 is a schematic diagram of the structure of a chip according to an exemplary embodiment. Detailed Implementation

[0039] Embodiments of this disclosure are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0040] Please refer to Figure 1, which is a schematic diagram of the architecture of a non-terrestrial communication system provided in an embodiment of this disclosure. This non-terrestrial communication system may include, but is not limited to, one network device and one terminal. The number and configuration of devices shown in Figure 1 are for illustrative purposes and do not constitute a limitation on the embodiments of this disclosure. In practical applications, it may include two or more network devices and two or more terminals. The non-terrestrial communication system shown in Figure 1 is exemplified by including one network device 101 and one terminal 102.

[0041] The network device 101 in this embodiment of the disclosure is an entity used for transmitting or receiving signals.

[0042] Among them, network equipment 101 is, for example, a node or device that connects a terminal to a wireless network. Network equipment may include at least one of the following: satellite, base station mounted on a satellite (referred to as satellite-borne base station), evolved Node B (eNB) in a 5G communication system, next generation eNB (ng-eNB), next generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), wireless backhaul equipment, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system, but is not limited to these.

[0043] Among them, satellites can be low Earth Orbit (LEO) satellites, medium Earth Orbit (MEO) satellites, high Earth Orbit (GEO) satellites, etc.

[0044] The embodiments disclosed herein do not limit the specific technologies or device forms used in the network devices.

[0045] In this disclosure, terminal 102 refers to a processing device within the coverage beam of a network device for communicating with the network device. For example, the terminal may be at least one of the following: a car with non-terrestrial communication capabilities, a smart car, a mobile phone, a wearable device, a tablet computer, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, or a wireless terminal in a smart home; but it is not limited thereto. This disclosure does not limit the specific technology or device form used in the terminal.

[0046] It is understood that the non-terrestrial communication system described in the embodiments of this disclosure is for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and does not constitute a limitation on the technical solutions provided in the embodiments of this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this disclosure are also applicable to similar technical problems.

[0047] The technical solutions in the related technologies are described below with reference to Figure 2. It should be noted that Figure 2 uses a satellite as the network device and a single-satellite, single-cell network system as an example for illustration. Specifically, the dashed box in Figure 2 represents cell 1 covered by the satellite, which contains numerous wavelengths. The System Information (SI) broadcast by the satellite on all wavelengths is identical, representing the system information for that cell. Taking wavelengths 1, 2, and 3 in the figure as examples, when the satellite covers these wavelengths, it may use three beams simultaneously or a single beam to cover T1, T2, and T3 in a time-division manner (i.e., beam skipping). Terminals in these wavelengths will receive the same system information. In other words, in the related technologies, terminals on different wavelengths receive the same system information, resulting in poor flexibility in system information configuration.

[0048] To better understand this disclosure, the following description, with reference to the accompanying drawings, describes information transmission methods, apparatus, devices, systems, chips, and storage media according to embodiments of this disclosure.

[0049] Figure 3 is a schematic flowchart of an information transmission method provided in an embodiment of this disclosure. It should be noted that the information transmission method in this embodiment is executed by an information transmission device. This information transmission device can be a terminal, or configured within a terminal; this disclosure does not limit its use. This embodiment uses a terminal as an example for illustration.

[0050] As shown in Figure 3, the information transmission method may include the following steps:

[0051] Step 301: Receive first system information, wherein the terminal is located at the first wave position of the cell covered by the network device, and the first system information differs from the system information of at least one wave position in the cell.

[0052] Among them, the cell covered by the network equipment on the ground can be divided into multiple beam positions. The network equipment can scan these beam positions sequentially through the beam, thereby realizing beam scanning.

[0053] In this embodiment, the wave position where the terminal is located is referred to as the first wave position.

[0054] As an example, when a terminal switches from another wavelength to the first wavelength, it can receive the first system information.

[0055] As another example, when the terminal switches from other wavelengths to the first wavelength, and the wavelength groups of the two wavelengths before and after the switch are different, it can receive the first system information.

[0056] As one possible implementation, the aforementioned first system information could be sent by a network device.

[0057] In this example, the first system information corresponds to the first wave position; that is, the first system information is the system information of the first wave position.

[0058] In one embodiment of this disclosure, the first system information may differ from the system information of one or more wavelengths in the cell.

[0059] In another embodiment of this disclosure, the first system information may be the same as the system information of the wave position in the wave position group to which the first wave position belongs, but may differ from the system information of the wave positions in other wave position groups in the cell.

[0060] It should be noted that system information within the same wavelength group can be identical, while system information corresponding to different wavelength groups within a cell is identical.

[0061] In another embodiment of this disclosure, the first system information may differ from the system information of other positions in the cell besides the first position. That is, the first system information is different from the system information of other positions in the cell besides the first position. Specifically, the first system information is valid for the first position.

[0062] In this embodiment, when there are multiple wave positions other than the first wave position in the cell, the system information of these multiple other wave positions may be different. In this case, the system information of each wave position in the cell is different, that is, the system information in the cell is valid at the wave position level.

[0063] As an example, the first system information is used by the terminal to receive services from the network device on the first wave position.

[0064] As an example, the first system information may include configuration information for the first wave position. Correspondingly, the terminal can receive services from network devices on the first wave position based on the configuration information of the first wave position.

[0065] The configuration information for the first wave refers to the various configurations required for the terminal to receive services from network devices in the first wave.

[0066] In one embodiment of this disclosure, the configuration information of the first wave position may include: configuration information shared by wave positions in the cell and configuration information that differs between the first wave position and other wave positions in the cell.

[0067] The configuration information that differs between the first wave position and other wave positions in the cell may include, for example, including but not limited to: wave position information of adjacent wave positions of the first wave position, tracking area information of the first wave position, and service end time of the network device for the first wave position. This embodiment does not specifically limit the configuration parameters included in the first configuration information.

[0068] The information transmission method provided in this disclosure involves a terminal receiving first system information. The terminal is located at the first waveband of a cell covered by a network device, and the first system information differs from the system information of at least one waveband in the cell. This allows terminals located at different wavebands or waveband groups to receive different system information, increasing the flexibility of system information configuration.

[0069] It should be noted that, in the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0070] In the embodiments disclosed herein, each step and its optional implementation can also be carried out independently.

[0071] In one embodiment of this disclosure, the first system information includes a first indication, wherein the first indication is used to indicate that any system information received by the terminal within the cell is valid in the corresponding frequency band or the corresponding frequency band group. Thus, the terminal can know, based on the first indication, that any system information it receives within the cell is valid in the corresponding frequency band or the corresponding frequency band group.

[0072] The system information being valid at the corresponding wavelength means that the system information is the same within the corresponding wavelength, while the system information is different between different wavelengths in the cell. In other words, the above system information is valid at the wavelength level.

[0073] The system information being valid within the corresponding wave group means that the system information is the same within the corresponding wave group, while the system information is different between different wave groups. In other words, the above system information is valid at the wave group level.

[0074] In one embodiment of this disclosure, the first indication is carried within a second system information block of the first system information. That is, the second system information block may include the first indication.

[0075] In one embodiment of this disclosure, the second system information block may belong to the minimum system information of the first system information, or to other system information SI (System Information) of the first system information.

[0076] In one embodiment of this disclosure, the second system information block may include system information block 1. System information block 1 may be represented as SIB1, where SIB stands for System Information Block.

[0077] In another embodiment of this disclosure, the second system information block may include a master information block (MIB).

[0078] In another embodiment of this disclosure, the second system information block may be a system information block in another SI of the first system information, for example, the second system information block may be SIB2 or SIB3, etc.

[0079] In one embodiment of this disclosure, the first indication may be an indication added on the basis of the original information elements of the second system information block.

[0080] For example, the second system information block is SIB1 in the first system information. Correspondingly, a beamfootprintScope indicator (i.e., the first indicator) can be added to the original information cell of SIB1. The beamfootprintScope indicator ensures that any system information received by the terminal in the cell is valid at the beam level or beam group level.

[0081] For example, if the second system information block is the MIB in the first system information, then a beamfootprintScope indicator (i.e., the first indicator) can be added to the original information cells of the MIB. The beamfootprintScope indicator ensures that any system information received by the terminal within the cell is valid at the beam level or beam group level.

[0082] In one embodiment of this disclosure, when the value of the first indication is a first preset value, it indicates that any system information received by the terminal within the cell is valid at the beam level. For example, if the second system information block is SIB1 in the first system information, a beam level broadcast beamFootPrintScope indication (i.e., the first indication) can be added to SIB1. When the value of the beamFootPrintScope indication is the first preset value, it indicates that any system information received by the terminal within the cell is valid at the beam level or beam group level.

[0083] The first set value is a preset value. For example, the first set value can be 1 or true. This embodiment does not specifically limit the value of the first set value.

[0084] Figure 4 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. It should be noted that this information transmission method is executed by a terminal.

[0085] As shown in Figure 4, the information transmission method may include the following steps:

[0086] Step 401: Receive first system information, wherein the terminal is located at the first wave position of the cell covered by the network device, and the first system information differs from the system information of at least one wave position in the cell. The first system information includes a first indication, wherein the first indication is used to indicate that any system information received by the terminal in the cell is valid at the corresponding wave position.

[0087] It can be understood that the first indication is used to indicate that any system information received by the terminal within the cell is valid at the corresponding wavelength. That is, the first indication is used to indicate that any system information received by the wavelength within the cell is valid at the wavelength level.

[0088] Step 402: When the terminal switches from the first wave position to the second wave position, receive the second system information of the second wave position.

[0089] It should be noted that the second wave position and the first wave position are different wave positions within the cell. As an example, the second wave position can be a wave position adjacent to the first wave position within the cell.

[0090] Among them, the second system information of the second wave position differs from the first system information.

[0091] It is understood that the second system information and the first system information in this embodiment have the same format, but because the wave positions corresponding to the second system information and the first system information are different, the contents included in the first system information and the second system information are different.

[0092] As an example, the second system information includes the configuration information of the second wave position. This configuration information may include: configuration information shared by wave positions within the cell, and configuration information that differs between the second wave position and other wave positions within the cell.

[0093] In this embodiment, after obtaining the second system information of the second wave position, the terminal can receive network device services on the second wave position based on the second system information.

[0094] The information transmission method provided in this embodiment allows the terminal to know that the first system information is valid at the wave position level through the first indication in the first system information, and to receive the second system information of the second wave position again when it is determined to switch from the first wave position to the second wave position, thereby enabling the terminal to obtain the second system information of the second wave position in which it is located.

[0095] Based on the above embodiments, before receiving the second system information sent by the network device, it can be determined that the system information of the second bit has not been queried in the local storage. That is, if the system information of the second bit is not found in the local storage, the terminal receives the second system information sent by the network device.

[0096] In one embodiment, during the process of a terminal performing a waveform switching, in order to reduce the overhead of the terminal re-receiving system information for the second waveform, the terminal can query the system information for the second waveform in its local storage. If the system information for the second waveform is not found in the local storage, the terminal receives the second system information sent by the network device. Thus, it can be seen that during the waveform switching process, if the terminal cannot find the system information for the second waveform in its local storage, it re-receives the system information from the network device.

[0097] In this context, it's understandable that if system information for the second wave bit is found in local storage, the terminal can continue to receive network device services on the second wave bit based on that information. This reduces the power consumption of the terminal when receiving system information, further lowering the terminal's overall power consumption.

[0098] As an alternative to the embodiment in Figure 4 above, step 401 in Figure 4 can be replaced by: receiving first system information, wherein the first system information includes a first indication, wherein the first indication is used to indicate that any system information received by the terminal in the cell is valid in the corresponding wavelet group.

[0099] Correspondingly, step 402 above can be replaced by: receiving the second system information of the second wave position when the terminal switches from the first wave position to the second wave position and the wave position groups of the first wave position and the second wave position are different.

[0100] It should be noted that when a terminal switches from the first wave position to the second wave position, and the first and second wave position groups belong to the same wave position group, the terminal does not need to receive the system information again on the second wave position, and can continue to use the first system information to receive network device services on the second wave position.

[0101] To facilitate a clear understanding of this disclosure, the information transmission method in this embodiment will be described below with reference to FIG5. It should be noted that FIG5 uses SIB1 as the second system information block, beamFootPrintScope as the first indication, and a satellite-borne base station as the network device for illustrative purposes.

[0102] As shown in Figure 5, it can include:

[0103] Step 501: The terminal receives SIB1 of beam bit A sent by the satellite base station. If beamFootPrintScope in SIB1 of beam bit A is true, it means that any system information received by the terminal in the cell is valid at the beam bit level.

[0104] Step 502: The terminal continues to receive other System Information (OSI) of wavelength A sent by the planetary base station.

[0105] Among them, the other SIs of wave position A include SIBs other than SIB1 of wave position A.

[0106] It should be noted that after the terminal receives SIB1 of wave position A and other SIs of terminal A, the terminal can form the system information of wave position A based on SIB1 of wave position A and other SIs of terminal A.

[0107] In other words, the system information of wave position A is provided by SIB1 of wave position A and other SIs of wave position A. The system information of wave position A is the collective name of these SIBs.

[0108] Among them, the terminal receives services from the satellite base station on wave position A based on the system information of wave position A.

[0109] Step 503: When the terminal switches from wavelet A to wavelet B, the terminal receives the SIB1 of wavelet B sent by the satellite base station. If beamFootPrintScope in SIB1 of wavelet B is true, it means that any system information received by the terminal in the cell is valid at the wavelet level.

[0110] Step 504: The terminal continues to receive other SIs of wavelet B sent by the satellite base station, wherein the other SIs of wavelet B include other SIBs besides SIB1 of wavelet B.

[0111] It should be noted that after the terminal receives SIB1 and other SIs of wave position B, the terminal forms the system information of wave position B based on SIB1 and other SIs of wave position B.

[0112] Among them, the terminal receives services from the satellite base station on the B-band based on the system information of the B-band.

[0113] It should be noted that, from the perspective of the satellite-based base station, the satellite-based base station transmits system information for wavelength A on wavelength A. Correspondingly, the satellite-based base station transmits system information for wavelength B on wavelength B.

[0114] Figure 6 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. It should be noted that this information transmission method is executed by a terminal.

[0115] As shown in Figure 6, the information transmission method may include the following steps:

[0116] Step 601: Receive first system information, wherein the terminal is located in the first wave position of the cell covered by the network device, and the first system information differs from the system information of at least one wave position in the cell. The first system information includes a second indication; the second indication is used to indicate the group identifier of the wave position group to which the first wave position belongs, wherein the system information of the wave positions in the wave position group are the same.

[0117] In one embodiment of this disclosure, the first system information may further include a first indication, which indicates that any system information received by the terminal within the cell is valid at the corresponding frequency band level. That is, the first indication indicates that any system information received by the terminal within the cell is valid at the frequency band level.

[0118] In one embodiment of this disclosure, the second indication carries the minimum system information of the first system information.

[0119] In one possible approach, the minimum system information may include a second system information block, which may include a second indication.

[0120] In another embodiment of this disclosure, the second instruction carries a second system information block that is part of the first system information.

[0121] In one embodiment of this disclosure, the second system information block may belong to the minimum system information of the first system information, or the second system information block may belong to other SIs of the first system information.

[0122] As an example, the second system information block in this embodiment can be one of the various system information blocks (SIBs) included in the minimum system information. For example, the second system information block can be SIB1 in the minimum system information, or the second system information block can be the master information block (MIB) in the minimum system information. This embodiment does not specifically limit the second system information block.

[0123] It should be noted that this disclosure uses the example of a second instruction being carried on SIB1 for illustrative purposes.

[0124] In some embodiments, the second indication is an additional indication added to the existing information element of the second system information block. In other embodiments, the second system information block further includes a first indication, and the second indication is a first set value (e.g., 1 or true), indicating that any system information received by the terminal within the cell is valid under the corresponding spectral group, and the system information area identifier systemInformationAreaID information element in the second system information block can be used as the second indication.

[0125] For example, the second system information block is SIB1, and the second indication is the beamFootPrintScope indication. When the beamFootPrintScope indication is 1 or true, the system information area identifier systemInformationAreaID in SIB1 is used to indicate the group identifier of the wave position group to which the first wave position belongs.

[0126] It should be noted that when the value of the first indication is a second set value (e.g., 0 or false), the system information area identifier systemInformationAreaID in the second system information block is used to indicate the identifier of a specific network area, wherein the specific network area consists of multiple cells, and the system information of the cells in the specific network area is the same.

[0127] It should be noted that this is an illustrative description of the meaning of systemInformationAreaID. For the meaning of systemInformationAreaID, please refer to the relevant descriptions in existing communication standard protocols.

[0128] As another example, the first system information mentioned above may also include: a fourth indication, wherein, when the value of the fourth indication is a first set value, the system information area identifier systemInformationAreaID in the second system information block may be used as the second indication.

[0129] In one embodiment, the fourth instruction carries a second system information block that contains the first system information.

[0130] It should be noted that when the value of the fourth indication is the second set value (e.g., 0 or false), the system information area identifier systemInformationAreaID in the second system information block is used to indicate the identifier of a specific network area, wherein the specific network area is composed of multiple cells, and the system information of the cells in the specific network area is the same.

[0131] Figure 7 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure. It should be noted that this information transmission method is executed by a terminal.

[0132] As shown in Figure 7, the information transmission method may include the following steps:

[0133] Step 701: Receive first system information, wherein the terminal is located in the first wave position of the cell covered by the network device, and the first system information differs from the system information of at least one wave position in the cell. The minimum system information of the first system information includes a second indication; the second indication is used to indicate the group identifier of the wave position group to which the first wave position belongs, wherein the system information of the wave positions in the wave position group is the same.

[0134] In one embodiment of this disclosure, the minimum system information of the first system information may further include a first indication, which indicates that any system information received by the terminal within the cell is valid at the corresponding frequency band level. That is, the first indication indicates that any system information received by the terminal within the cell is valid at the frequency band level.

[0135] Step 702: When the terminal switches from the first wave position to the second wave position, receive the minimum system information of the second wave position, wherein the second indication in the minimum system information of the second wave position is used as the group identifier of the wave position group to which the second wave position belongs.

[0136] Step 703: If the group identifier of the wave group to which the first wave position belongs is different from the group identifier of the wave group to which the second wave position belongs, continue to receive other SIs of the second wave position.

[0137] In some embodiments, if the group identifier of the wavelet group to which the first wavelet belongs is the same as the group identifier of the wavelet group to which the second wavelet belongs, it can be determined that the first wavelet and the second wavelet are in the same wavelet group. In this case, the system information corresponding to the first wavelet and the second wavelet is the same, that is, the configuration information corresponding to the first wavelet and the second wavelet is the same. Correspondingly, the terminal does not need to continue to receive other system information sent by the network device for the second wavelet, and can continue to use the second system information to receive services from the network device on the second wavelet. Thus, when the terminal moves between wavelets in the same wavelet group, it does not need to update other system messages, reducing the number of system information updates and further reducing the power consumption of the terminal.

[0138] Step 704: Form the second system information of the second wave position based on the minimum system information of the second wave position and the other SIs of the second wave position.

[0139] It should be noted that the subsequent processing performed by the terminal after obtaining the second system information of the second wave position can be found in the relevant descriptions in other embodiments, and will not be repeated here.

[0140] The information transmission method provided in this disclosure involves a terminal determining whether the first and second wave positions belong to the same wave position group after switching from a first wave position to a second wave position. If the second wave position and the first wave position are in different wave position groups, the terminal receives the second system information of the second wave position. This allows the terminal to receive the second system information of the switched wave position even when the switched wave position and the original wave position are in different wave position groups, further reducing the power consumption of the terminal when receiving information.

[0141] Figure 8 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. It should be noted that this information transmission method is executed by a terminal.

[0142] As shown in Figure 8, the information transmission method may include the following steps:

[0143] Step 801: Receive first system information, wherein the terminal is located in the first wave position of the cell covered by the network device, and the first system information differs from the system information of at least one wave position in the cell. The first system information includes a third indication; the third indication is used to indicate a first system information block in the first system information that is valid in the first wave position, or valid in the wave position group to which the first wave position belongs.

[0144] In one embodiment of this disclosure, the first system information block belongs to other system information of the first system information.

[0145] In one embodiment of this disclosure, for any information block included in the other system information of the first system information, if the value of the third indication of the information block is a first set value, then the information block is described as the first system information block.

[0146] The first setting value is a value preset according to actual needs. For example, the first setting value can be 1 or true. That is, if the value of the third indication of an information block is 1 or true, it indicates that the information block is valid at the wave level or wave group level.

[0147] It can be understood that the first system information block that is valid at the first wave position in the first system information refers to the first system information block that is valid at the first wave position but invalid at other wave positions. Therefore, the first system information block that is valid at the first wave position in the first system information can also be called the first system information block that is valid at the wave position level in the first system information. That is, the third indication is used to indicate the first system information block that is valid at the wave position level in the first system information.

[0148] Specifically, a first system information block that is valid within the wave group to which the first wave position belongs in the first system information refers to a first system information block that is valid within the wave group to which the second wave position belongs, but invalid in other wave groups. Therefore, a first system information block that is valid within the wave group to which the first wave position belongs in the first system information can also be called a wave group-level valid first system information block in the first system information. That is, the third indication is used to indicate a wave group-level valid first system information block in the first system information.

[0149] In this embodiment, the first system information block can be one or more.

[0150] As an example, the first system information block can be either SIB2 or SIB3. As another example, the first system information block can be both SIB2 and SIB3.

[0151] In one embodiment of this disclosure, the third indication carries the minimum system information of the first system information.

[0152] In another embodiment of this disclosure, the third instruction carries the second system information block of the first system information.

[0153] In one embodiment, the second information block belongs to the minimum system information of the first system information.

[0154] In one embodiment of this disclosure, the second system information block may include SIB1. That is, the aforementioned third instruction may be carried in SIB1.

[0155] In one embodiment of this disclosure, when the third indication is used to indicate the first system information block that is valid in the first wavelet of the first system information, the first system information may further include the second indication mentioned above, or the first system information may further include the first indication and the second indication, and the first indication is used to indicate that any system information received by the terminal in the cell is valid in the corresponding wavelet group.

[0156] In another embodiment of this disclosure, when the third indication is used to indicate the first system information block that is valid within the first wavelet group to which the first wavelet belongs, the first system information may further include the second indication mentioned above, or the first system information may further include the first indication and the second indication, and the first indication is used to indicate that any system information received by the terminal within the cell is valid in the corresponding wavelet group.

[0157] In one embodiment of this disclosure, where the first system information includes a third indication, and the third indication is used to indicate a valid first system information block within the frequency group to which the first frequency belongs, the method may further include:

[0158] When the terminal switches from the first wave position to the second wave position and determines that the first wave position and the second wave position belong to different wave position groups, the first system information block in the second system information of the second wave position is received.

[0159] In one embodiment of this disclosure, when the terminal switches from the first wave position to the second wave position and it is determined that the wave position groups to which the first wave position and the second wave position belong are different, one possible implementation of receiving the first system information block in the second system information of the second wave position is as follows: receiving a second indication in the second system information, wherein the second indication in the second system information is used to indicate the group identifier of the wave position group to which the second wave position belongs; and receiving the first system information block in the second system information of the second wave position when the group identifier of the wave position group to which the second wave position belongs is different from the group identifier of the wave position group to which the first wave position belongs.

[0160] In another embodiment of this disclosure, when the terminal switches from the first wave position to the second wave position and determines that the wave position groups to which the first wave position and the second wave position belong are different, another possible implementation of receiving the first system information block in the second system information of the second wave position is as follows: receiving a first indication and a second indication in the second system information, wherein the first indication is used to indicate that any system information received by the terminal in the cell is valid in the corresponding wave position group, wherein the second indication in the second system information is used to indicate the group identifier of the wave position group to which the second wave position belongs; and receiving the first system information block in the second system information of the second wave position when the group identifier of the wave position group to which the second wave position belongs is different from the group identifier of the wave position group to which the first wave position belongs.

[0161] In one embodiment of this disclosure, where the first system information includes a third indication, and the third indication is used to indicate a first system information block in the first system information that is valid in the first wave position, the method may further include:

[0162] When the terminal switches from the first wave position to the second wave position, and determines that the first system information block in the first system information is valid in the first wave position based on the third indication, the terminal receives the first system information block in the second system information in the second wave position.

[0163] In one embodiment of this disclosure, when the terminal switches from the first wave position to the second wave position, and it is determined based on the third indication that the first system information block in the first system information is valid in the first wave position, one possible implementation of receiving the first system information block in the second system information of the second wave position is as follows: when the terminal switches from the first wave position to the second wave position, and it is determined based on the third indication that the first system information block in the first system information is valid in the first wave position, a second indication in the second system information is received, wherein the second indication in the second system information is used to indicate the group identifier of the wave position group to which the second wave position belongs; if the group identifier of the wave position group to which the second wave position belongs is different from the group identifier of the wave position group to which the first wave position belongs, the first system information block in the second system information of the second wave position is received.

[0164] In another embodiment of this disclosure, when the terminal switches from the first wavelet to the second wavelet and determines based on the third indication that the first system information block in the first system information is valid in the first wavelet, another possible implementation of receiving the first system information block in the second system information of the second wavelet is as follows: when the terminal switches from the first wavelet to the second wavelet and determines based on the third indication that the first system information block in the first system information is valid in the first wavelet, the terminal receives the first indication and the second indication in the second system information, wherein the first indication in the second system information is used to indicate that any system information received by the terminal in the cell is valid in the corresponding wavelet group, and the second indication in the second system information is used to indicate the group identifier of the wavelet group to which the second wavelet belongs; when the group identifier of the wavelet group to which the second wavelet belongs is different from the group identifier of the wavelet group to which the first wavelet belongs, the terminal receives the first system information block in the second system information of the second wavelet.

[0165] In one embodiment of this disclosure, the method may further include:

[0166] When the terminal switches from the first wave position to the second wave position, it receives the second indication in the second system information, which is used to indicate the group identifier of the wave position group to which the second wave position belongs; when the group identifier of the wave position group to which the second wave position belongs is different from the group identifier of the wave position group to which the first wave position belongs, it receives the first system information block in the second system information of the second wave position.

[0167] In one embodiment of this disclosure, when the group identifier of the wave group to which the second wave position belongs is different from the group identifier of the wave group to which the first wave position belongs, one possible implementation of receiving the first system information block in the second system information of the second wave position is as follows: when the group identifier of the wave group to which the second wave position belongs is different from the group identifier of the wave group to which the first wave position belongs, and the first system information block in the first system information is determined based on the third indication, the first system information block in the second system information of the second wave position is received.

[0168] Figure 9 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. It should be noted that this information transmission method is executed by a terminal.

[0169] As shown in Figure 9, the information transmission method may include the following steps:

[0170] Step 901: Receive first system information, wherein the terminal is located in the first wave position of the cell covered by the network device, the first system information differs from the system information of at least one wave position in the cell, and the minimum system information of the first system information includes a third indication, wherein the third indication is used to indicate the first system information block that is valid in the first wave position in the first system information.

[0171] In one embodiment of this disclosure, the minimum system information of the first system information may further include a second indication.

[0172] Step 902: When the terminal switches from the first wave position to the second wave position and determines that the first system information block in the first system information is valid in the first wave position based on the third indication, the first system information block in the other system information of the second wave position is received.

[0173] In other words, in this embodiment, when the terminal switches from the first wave position to the second wave position and determines that the first system information block in the first system information is valid in the first wave position based on the third indication, the terminal receives the first system information block of the second wave position sent by the network device.

[0174] As an example, if the third indication of the first system information block is 1 or true, it indicates that the first system information block is valid in the first wave.

[0175] In one embodiment of this disclosure, in order to obtain second system information for the second wave position so that the terminal can receive network device services on the second wave position based on the second system information, correspondingly, as shown in FIG9, after the above step 902, the method may further include:

[0176] Step 903: Replace the first system information block in the first system information of the first wave position with the first system information block of the second wave position to obtain the second system information of the second wave position.

[0177] In one embodiment of this disclosure, step 903 can be replaced by merging the other system information blocks in the first system information of the first wave position (excluding the first system information block) and the first system information block of the second wave position to obtain the second system information of the second wave position.

[0178] The information transmission method provided in this embodiment involves a terminal switching from a first wave position to a second wave position. If, based on a third indication, a first system information block in the first system information is determined to be valid in the first wave position, the terminal receives a second system information block in the second wave position and replaces the second system information block of the first wave position with the second system information block of the second wave position to obtain the second system information of the second wave position. This eliminates the need for the terminal to receive all other system information of the switched wave position after switching. Instead, it only needs to receive the valid system information block at the wave position level. Based on the system information of the first wave position and the received valid system information block, the terminal can easily determine the system information of the second wave position, further reducing the power consumption of the terminal when receiving information.

[0179] Figure 10 is a flowchart illustrating another information transmission method provided in an embodiment of this disclosure. It should be noted that this information transmission method is executed by a terminal.

[0180] As shown in Figure 10, the information transmission method may include the following steps:

[0181] Step 1001: Receive first system information, wherein the terminal is located in the first wave position of the cell covered by the network device, the first system information differs from the system information of at least one wave position in the cell, the minimum system information of the first system information includes a second indication and a third indication, the second indication is used to indicate the group identifier of the wave position group to which the first wave position belongs, and the third indication is used to indicate the first system information block that is valid in the first wave position in other SIs of the first system information.

[0182] Among them, the system information of the wave positions in the wave position group is the same.

[0183] In one embodiment of this disclosure, if the third indication of the second system information block is true or 1, it indicates that the first system information block is valid at the wave level among the other SIs of the first wave bit.

[0184] In one embodiment of this disclosure, the minimum system information may include: a second system information block, wherein the second system information block includes: a second indication and a third indication.

[0185] In some examples, the second and third indicators can be newly added indicators within the second system information block. For instance, the second system information block can be SIB1. Correspondingly, a systemInformationSubAreaID and a subAreaScope can be added to SIB1. The systemInformationSubAreaID represents the group identifier of the wavelet group to which the first wavelet belongs, and the subAreaScope represents that the first system information block is valid at the wavelet level. It can be understood that in this example, systemInformationSubAreaID is the second indicator, and subAreaScope is the third indicator.

[0186] In other examples, the second system information block also includes a fourth indication. Correspondingly, when the fourth indication is 1 or true, the system information area identifier `systemInformationAreaID` in the second system information block serves as the second indication, and the area scope in the second system information block serves as the third indication. That is, when the fourth indication is 1 or true, the system information area identifier `systemInformationAreaID` in the second system information block is used to indicate the group identifier of the wavelet group to which the first wavelet belongs, and the area scope in the first system information block is used to indicate that the first system information block is valid at the wavelet level among other system information.

[0187] It should be noted that, when the fourth indication is 0 or false, the meanings of the system information area identifier systemInformationAreaID and area scope in the second system information block can be found in existing communication protocol standards, and this embodiment does not specifically limit them.

[0188] As another example, the second system information block also includes a first indication, which indicates that any system information received by the terminal within the cell is valid at the corresponding wavelength group. If the first indication is 1 or true, the system information area identifier (systemInformationAreaID) in the second system information block can serve as a second indication, and the area scope in the second system information block can serve as a third indication. That is, if the first indication is 1 or true, the system information area identifier (systemInformationAreaID) in the second system information block indicates the group identifier of the wavelength group to which the first wavelength group belongs, and the area scope in the first system information block indicates that the first system information block is valid at the wavelength level among other system information.

[0189] It should be noted that, when the first indication is 0 or false, the meanings of the system information area identifier systemInformationAreaID and area scope in the second system information block can be found in existing communication protocol standards, and this embodiment does not specifically limit them.

[0190] Step 1002: When the terminal switches from the first wave position to the second wave position and determines that the first system information block in the first system information is valid in the first wave position based on the third indication, the terminal receives the minimum system information of the second wave position sent by the network device, wherein the second indication included in the minimum system information of the second wave position is used to indicate the group identifier of the wave position group to which the second wave position belongs.

[0191] In one embodiment of this disclosure, the third indication included in the minimum system information of the second wave bit is used to indicate the first system information block that is valid in the second wave bit among the other SIs of the second system information.

[0192] In one embodiment of this disclosure, when the terminal switches from the first wavelet to the second wavelet and the third indication of the first system information block is true or 1, the minimum system information of the second wavelet sent by the network device is received.

[0193] In this embodiment, the minimum system information of the second wave position may include a second system information block, wherein the second indicator in the second system information block of the second wave position is used to indicate the group identifier of the wave position group to which the second wave position belongs.

[0194] It can be understood that the third indication in the second system information block of the second wave position is used to indicate the first system information block that is valid in the second wave position among other SIs of the second system information. In other words, the third indication in the second system information block of the second wave position is used to indicate that the first system information block in other SIs of the second wave position is valid at the wave position level.

[0195] Step 1003: If the group identifier of the wavelet group to which the second wavelet belongs is different from the group identifier of the wavelet group to which the first wavelet belongs, receive the first system information block of the second wavelet sent by the network device.

[0196] As an example, if there is only one first system information block, the first system information block may be SIB2 or SIB3.

[0197] As another example, if there are multiple first system information blocks, for example, if there are two first system information blocks, the two first system information blocks can be SIB2 and SIB3.

[0198] In some embodiments, if the group identifier of the wavelet group to which the second wavelet belongs is the same as the group identifier of the wavelet group to which the first wavelet belongs, it can be determined that the first wavelet and the second wavelet are in the same wavelet group. In this case, the system information corresponding to the first wavelet and the second wavelet is the same, that is, the configuration information corresponding to the first wavelet and the second wavelet is the same. Correspondingly, the terminal does not need to continue to receive other system information of the second wavelet sent by the network device, and can continue to use the first system information of the first wavelet to receive services from the network device on the second wavelet. Thus, when the terminal moves between wavelets in the same wavelet group, it does not need to update other system messages, reducing the number of system information updates and reducing the power consumption of the terminal.

[0199] Following step 1003, in order for the terminal to obtain the second system information of the second wave bit so that the terminal can receive services from the network device on the second wave bit, correspondingly, following step 1003 in Figure 10, the following may also be included:

[0200] Step 1004: Replace the first system information block in the first system information of the first wave position with the first system information block of the second wave position to obtain the second system information of the second wave position.

[0201] In one embodiment of this disclosure, step 1004 can be replaced by merging the other information blocks in the first system information (excluding the first system information block) and the first system information block of the second wave bit to obtain the second system information of the second wave bit.

[0202] It should be noted that the processing performed by the terminal after receiving the second system information of the second wave bit can be found in the relevant descriptions in other embodiments, and will not be repeated here.

[0203] The information transmission method provided in this disclosure involves a terminal receiving minimum system information of the second wavelet from a network device after switching from a first wavelet to a second wavelet, provided that the first system information block of the first wavelet is valid at the wavelet level. Based on this minimum system information, the terminal determines the group identifier of the wavelet group to which the second wavelet belongs. If the group identifiers of the wavelet groups to which the first and second wavelets belong are different, the terminal receives a valid system information block at the wavelet level from the network device. Based on the valid system information block and the system information of the first wavelet, the terminal determines the second configuration information of the second wavelet and performs operations based on the second configuration information. This allows the terminal to obtain a valid system information block at the wavelet level from the network device, even when the wavelets before and after the switch are in different wavelet groups, thus enabling the terminal to learn the configuration information of the second wavelet and further reducing the power consumption of the terminal when receiving information.

[0204] As an alternative to the embodiment of FIG10 above, step 1003 in FIG10 can be replaced as follows: when the terminal switches from the first wave position to the second wave position, receiving the minimum system information of the second wave position sent by the network device, wherein the second indication included in the minimum system information of the second wave position is used to indicate the group identifier of the wave position group to which the second wave position belongs.

[0205] Correspondingly, step 1004 in Figure 10 above can be replaced by: receiving the first system information block of the second wave position sent by the network device when the group identifier of the wave position group to which the second wave position belongs is different from the group identifier of the wave position group to which the first wave position belongs, and the first system information block in the first system information is determined based on the third indication.

[0206] In this embodiment, after switching from the first wavelet to the second wavelet, the terminal receives the minimum system information of the second wavelet sent by the network device. Based on the minimum system information of the second wavelet, the group identifier of the wavelet group to which the second wavelet belongs is determined. If the group identifier of the wavelet group to which the second wavelet belongs is different from the group identifier of the wavelet group to which the first wavelet belongs, and the third indication of the first system information block is true or 1, the terminal receives a wavelet-level valid system information block from the network device. Based on the wavelet-level valid system information block and the system information of the first wavelet, the terminal determines the second configuration information of the second wavelet and performs operations based on the second configuration information of the second wavelet. Therefore, the terminal only obtains a wavelet-level valid system information block from the network device when the wavelets before and after the switch are in different wavelet groups. This allows the terminal to learn the configuration information of the second wavelet through the wavelet-level valid system information block, further reducing the power consumption of the terminal in receiving information.

[0207] To facilitate a clear understanding of this disclosure, the information transmission method in this embodiment will be described exemplarily below with reference to FIG11. It should be noted that FIG11 uses SIB2 and SIB3 as the first system information blocks, SIB1 as the second system information block, and systemInformationSubAreaID and subAreaScope as the third indication included in the second system information block as examples for exemplary description. Furthermore, FIG11 uses a satellite-based base station as an example of the network device for exemplary illustration.

[0208] As shown in Figure 11, it can include:

[0209] Step 1101: The terminal receives the first wave of SIB1 sent by the spaceborne equipment, wherein systemInformationSubAreaID in the first wave of SIB1 is the first identifier, and subAreaScope of SIB2 and SIB3 is true.

[0210] It should be noted that in the SIB1 of the first wave position, systemInformationSubAreaID is the first identifier, indicating that the group identifier of the wave position group to which the first wave position belongs is the first identifier.

[0211] In this wave position group, the system information of the wave positions is the same, that is, the configuration information of the wave positions in this wave position group is the same.

[0212] Correspondingly, if the subAreaScope of SIB2 and SIB3 in SIB1 of the first wave position is true, it means that SIB2 and SIB3 in other SIs of the first wave position are wave position-level valid.

[0213] It should be noted that, in this embodiment, the first wavelet SIB1 may further include scheduling information corresponding to the first wavelet SIB2 and SIB3 respectively. Correspondingly, the terminal receives the first wavelet SIB2 sent by the satellite base station based on the scheduling information of the first wavelet SIB2. Additionally, the terminal receives the first wavelet SIB3 sent by the satellite base station based on the scheduling information of the first wavelet SIB3.

[0214] Step 1102: The terminal receives other SIs of the first wave of bits sent by the satellite base station.

[0215] It should be noted that after the terminal receives the SIB1 and other SIs of the first wave position, the terminal can form the first system information of the first wave position based on the other SIs and SIB1 of the first wave position. Then, the terminal receives the service of the satellite base station based on the first system information of the first wave position.

[0216] Step 1103: When the terminal switches from the first wavelet to the second wavelet and determines that the subAreaScope of SIB2 and SIB3 is true, the terminal receives the SIB1 of the second wavelet sent by the satellite base station, wherein the systemInformationSubAreaID in the SIB1 of the second wavelet is the second identifier, and the subAreaScope of SIB2 and SIB3 is true.

[0217] It should be noted that in the SIB1 of the second wave position, systemInformationSubAreaID is the second identifier, indicating that the group identifier of the wave position group to which the second wave position belongs is the second identifier.

[0218] In this wave position group, the system information of the wave positions is the same, that is, the configuration information of the wave positions in this wave position group is the same.

[0219] Correspondingly, if the subAreaScope of SIB2 and SIB3 in SIB1 of the second wave position is true, it means that SIB2 and SIB3 in other SIs of the second wave position are wave position-level valid.

[0220] Step 1104: If the first identifier and the second identifier are the same, the terminal does not need to update the OSI.

[0221] In other words, if the first identifier and the second identifier are the same, the terminal does not need to re-receive other SIs (i.e., OSIs) of the second wave bit, and continues to receive services from the satellite base station based on the first system information of the first wave bit.

[0222] Step 1105: If the first identifier and the second identifier are different, the terminal receives SIB2 and SIB3 from the other SIs of the second wave bit sent by the satellite base station.

[0223] It should be noted that in this embodiment, the satellite-borne base station transmits other SIs of the second wave, while the terminal receives SIB2 and SIB3 of the second wave from the other SIs of the second wave sent by the network device. In other words, the terminal does not need to receive all SIBs in the other SIs of the second wave; receiving SIB2 and SIB3 is sufficient. This reduces the overhead of receiving all system information blocks in the other SIs and further reduces the terminal's power consumption.

[0224] It should be noted that, in this embodiment, the second wave SIB1 may also include scheduling information corresponding to the second wave SIB2 and SIB3, so that the corresponding terminal can receive the second wave SIB2 and SIB3 based on the scheduling information.

[0225] In one embodiment of this disclosure, after receiving SIB2 and SIB3 of the second wave bit, the terminal can replace SIB2 in the first system information of the first wave bit with SIB2 of the second wave bit, and replace SIB3 in the system information of the first wave bit with SIB3 of the second wave bit, so as to obtain the second system information of the second wave bit.

[0226] In another embodiment of this disclosure, after receiving SIB2 and SIB3 of the second wave bit, the terminal can merge the other system information blocks in the first system information other than SIB2 and SIB3, as well as SIB2 and SIB3 of the second wave bit, to obtain the second system information of the second wave bit.

[0227] It should be noted that after determining the second system information of the second wave bit, the terminal receives the service from the satellite base station based on the second system information of the second wave bit.

[0228] To facilitate a clear understanding of this disclosure, the process of updating system information when a terminal switches from the first wave position to the second wave position is described below with reference to Figure 12.

[0229] Figure 12 is a schematic diagram of the process of updating system information when the terminal switches from the first wave position to the second wave position.

[0230] As shown in Figure 12, it can include:

[0231] Step 1201: Receive and store the system information of the first wave position.

[0232] In this embodiment, the terminal receives all the contents of the system information of the first wave position sent by the satellite base station on the first wave position, and stores the systemInformationSubAreaID of the first wave position and the subAreaScope of each SIB in the other SIs of the first wave position.

[0233] Step 1202: Determine whether systemInformationSubAreaID is configured in SIB1. If yes, proceed to step 1203; otherwise, proceed according to existing technology.

[0234] Step 1203: Determine whether a Synchronization Signal Block (SSB) beam switching occurs during beam management at the terminal. If yes, proceed to step 1204; otherwise, proceed to step 1208.

[0235] In other words, it determines whether a waveform switch has occurred at the terminal.

[0236] Step 1204: Receive the second wave bit SIB1.

[0237] It is understandable that SIB1 includes systemInformationSubAreaID.

[0238] Step 1205: Determine whether the systemInformationSubAreaID in the SIB1 of the second wave bit has changed compared to the systemInformationSubAreaID in the SIB1 of the first wave bit. If yes, proceed to step 1206; otherwise, proceed to step 1208.

[0239] In other words, it is determined whether the systemInformationSubAreaID in the SIB1 of the second wave bit is the same as the systemInformationSubAreaID in the SIB1 of the first wave bit. If they are the same, step 1208 is executed; if they are different, step 1206 is executed.

[0240] Step 1206: For each stored SIB, determine whether the subAreaScope of a certain type of SIB is true. If it is true, proceed to step 1207; otherwise, proceed to step 1208.

[0241] Step 1207: Re-receive the SIB of this type.

[0242] For example, if the subAreaScope of SIB2 and SIB3 is determined to be true, the second-wavelength SIB2 and SIB3 can be received again.

[0243] Step 1208: Continue using the stored system information.

[0244] Figure 13 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. It should be noted that this information transmission method is executed by a terminal.

[0245] As shown in Figure 13, the information transmission method may include the following steps:

[0246] Step 1301: Receive first system information sent by the network device, wherein the terminal is located at the first wave position of the cell covered by the network device, and the first system information differs from the system information of at least one wave position in the cell. The first system information includes: minimum system information containing a second system information block and other SIs, wherein the second system information block includes: systemInformationAreaID, areascope of the first system information block in the other SIs, and a first indication.

[0247] In this embodiment, the first indication is used to indicate that any system information received by the terminal within the cell is valid at the wave group level.

[0248] In this embodiment, the minimum system information is sent before the other SIs. That is, the minimum system information is sent first, followed by the other SIs.

[0249] It should be noted that when the value of the first indicator in the second system information block is 1 or true, systemInformationAreaID indicates the group identifier of the wave group to which the first wave position belongs. Furthermore, when the value of areascope of the first system information block in other SIs is true or 1, it indicates that the first system information block in other SIs of the first wave position is valid at the wave position level.

[0250] Among them, the system information of the wave positions in the wave position group is the same.

[0251] The first indication is either 1 or true, indicating that any system information received by the terminal within the cell is valid at the wave group level.

[0252] Step 1302: When the terminal switches from the first wavelet to the second wavelet, and the areascope of the first system information block is true or 1, the minimum system information of the second wavelet sent by the network device is received, wherein the systemInformationAreaID included in the minimum system information of the second wavelet is used to indicate the group identifier of the wavelet group to which the second wavelet belongs.

[0253] It is understood that, in this embodiment, the minimum system information of the second wave bit also includes a corresponding third indication and a first indication. Specifically, the third indication in the minimum system information of the second wave bit is used to indicate the first system information block that is valid on the second wave bit in other SIs of the second wave bit.

[0254] Step 1303: If the group identifier of the second wave position group is different from the group identifier of the first wave position group, receive the first system information block in other SIs of the second wave position sent by the network device.

[0255] After receiving the first system information block of the second wave bit sent by the network device, in order for the terminal to obtain the first system information of the second wave bit, after step 1303, the following may also be included:

[0256] Step 1304: Replace the first system information block in the first system information of the first wave position with the first system information block of the second wave position to obtain the second system information of the second wave position.

[0257] In one embodiment of this disclosure, an alternative to step 1304 is to generate second system information of the second wave bit from the system information blocks other than the first system information block and the first system information block of the second wave bit in the first system information.

[0258] In cases where the group identifier of the second wavelet is the same as that of the first wavelet, it indicates that the first and second wavelets belong to the same wavelet group, and wavelets within the same group have identical system information. Correspondingly, the terminal does not need to continue receiving other SIs (System Information) for the second wavelet sent by the network device. Therefore, the terminal can continue to receive services from the network device based on the first system information of the first wavelet. This allows the terminal to move between wavelets within the same wavelet group without updating other system messages, reducing the number of system information updates and thus reducing the terminal's power consumption.

[0259] Figure 14 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. This information transmission method is executed by a terminal.

[0260] As shown in Figure 14, the information transmission method may include the following steps:

[0261] Step 1401: Receive first system information sent by the network device, wherein the terminal is located in the first wave position of the cell covered by the network device, and the first system information differs from the system information of at least one wave position in the cell. The first system information includes: a third system information block, where any information cell in the third system information block is valid in the first wave position, or valid in the wave position group to which the first wave position belongs.

[0262] In one embodiment of this disclosure, other SIs of the first system information may include a third system information block. That is, the third system information block belongs to the other SIs of the first system information.

[0263] It can be understood that if any information cell in the third system information block is valid in the first wave position, it means that the information cells in the third system information block constitute configuration information that differs between the first wave position and other wave positions in the cell.

[0264] It should be noted that if the information elements or fields contained in the third system information block also exist in the existing SIB, then the information element configuration of the third system information block shall override the configuration in the existing SIB.

[0265] In one embodiment of this disclosure, the aforementioned third system information block may be a newly added system information block based on the original system information block of the first system information.

[0266] It can be understood that if any information cell in the third system information block is valid within the wave group to which the first wave position belongs, it means that the third system information blocks within the wave group to which the first wave position belongs are the same, and the third system information blocks in different wave groups are different.

[0267] In one embodiment of this disclosure, if any cell within the third system information block is valid within the first wave position, and the terminal switches from the first wave position to the second wave position, the terminal can receive the third system information block in the second system information of the second wave position. Since the terminal contains configuration information shared across different wave positions, when the terminal switches from the first wave position to the second wave position, it can receive the third system information block in the second system information of the second wave position. This eliminates the need for the terminal to receive the entire system information of the second wave position, reducing the power consumption of the terminal when receiving information.

[0268] It can be understood that after obtaining the third system information block, the terminal can obtain the second system information of the second wave based on the first system information of the first wave and the third system information block.

[0269] The method for obtaining the second system information of the second wave position can be found in the relevant descriptions in other embodiments, and will not be repeated here.

[0270] In another embodiment of this disclosure, when the third system information block is valid within the wave group to which the first wave position belongs, the first system information may further include a second indication, wherein the second indication is used to indicate the group identifier of the wave group to which the first wave position belongs.

[0271] If the aforementioned first system information includes a second indication and a third system information block, and the third system information block is valid within the wave group to which the first wave position belongs, and the second indication carries the minimum system information of the first wave position, the terminal may also perform the following steps:

[0272] When the terminal switches from the first wave position to the second wave position, the minimum system information of the second wave position is received, wherein the second indication in the minimum system information of the second wave position is used to indicate the group identifier of the wave position group to which the second wave position belongs; if the group identifiers of the wave position groups to which the first wave position and the second wave position belong are different, the third system information block in other SIs of the second wave position is received.

[0273] After obtaining the third system information block of the second wave position, the terminal can obtain the second system information of the second wave position based on the first system information of the first wave position and the third system information block.

[0274] In some embodiments, if the group identifier of the wavelet group to which the first wavelet and the second wavelet belong is the same, it indicates that the first wavelet and the second wavelet belong to the same wavelet group. The third system information block in the same wavelet group is the same. Therefore, the terminal continues to receive the network device's service on the second wavelet according to the first system information. The terminal does not need to receive the third system information block in other SIs of the second wavelet, which reduces the power consumption of the terminal receiving information.

[0275] Based on any of the above embodiments, in order to reduce the power consumption of the terminal when performing beam switching, correspondingly, when the first beam position is located at the edge of the cell and the first beam position is adjacent to the cell's neighboring cell, the first system information of the first beam position includes: the beam position information of the first beam position in the cell's neighboring beam position and the beam position information of the first beam position in the neighboring cell.

[0276] To facilitate a clear understanding of this disclosure, the following description, in conjunction with Figure 2, provides an exemplary illustration of the power consumption that can easily lead to beamforming in the related art.

[0277] For example, if terminal 1 is located on a beam position with an SSB (Synchronization Signal Block) index of 58 in cell 1, since system information is at the cell level, the idle terminal cannot know that the SSB indices of its local adjacent beam positions are {57, 53, 59}, and the SSB indices of its neighboring beam positions are {1, 2, 3}. Therefore, it cannot determine the accurate SSB time-domain window for neighboring beam positions. When performing local beam management and neighboring cell measurements, the terminal can only search all possible time-domain windows to avoid missing any. Taking a cell where the maximum SSB index Lmax in the SSB pattern used by the cell is 64 as an example, the terminal needs to scan 64 windows where SSBs might exist, but only 6 windows are actually valid. This leads to inefficient mobility procedures and severely negatively impacts terminal power consumption.

[0278] The system information is at the cell level, and different cells use different system information.

[0279] In order to clearly understand that the first system information of the first wave position includes the wave position information of the adjacent wave positions of the first wave position in the cell and the wave position information of the adjacent wave positions of the first wave position in the adjacent cell, the power consumption of the terminal when performing beam switching can be reduced. The following is an illustrative explanation with reference to Figure 2.

[0280] It should be noted that Figure 2 is an example description using wave position information as the SSB index.

[0281] Taking cell 1 as cell 1, the first wave position as the wave position with SSB index 58 in cell 1, and terminal 1 as the terminal in the first wave position, the configuration information of the first wave position indicates that the SSB index of the first wave position in the adjacent wave positions in cell 1 is {57, 53, 59}, and the SSB index of the first wave position in the adjacent wave positions in cell 2 is {1, 2, 3}. At this time, when terminal 1 performs beam management in this area, it can know the time domain window of the SSB corresponding to the adjacent wave positions based on the SSB index of the adjacent wave positions in cell 1. At this time, the terminal does not need to search all possible time domain windows to avoid missed detection. In addition, when terminal 1 performs neighbor cell measurement, it can determine the time domain window of the SSB of the adjacent position based on the SSB index of the first position in cell 2. It is only necessary to measure the time domain window of the SSB of the adjacent position in cell 2, without having to measure the time domain window of each position included in cell 2. This reduces the complexity of the terminal's mobility process and the terminal's power consumption.

[0282] Taking cell 1 as an example, and the first beam position as the beam position with SSB index 60 in cell 1, and terminal 2 as the terminal in the first beam position, the configuration information of the first beam position indicates that the SSB index of the first beam position in the adjacent beam positions in cell 1 is {59, 51, 61}, and the SSB index of the first beam position in the adjacent beam positions in cell 2 is {3, 4, 5}. At this time, when terminal 2 performs beam management in this area, it can know the time domain window of the SSB corresponding to the adjacent beam position based on the SSB index of the adjacent beam position in cell 1. At this time, the terminal does not need to search the time domain windows of all possible SSBs to avoid missed detection. In addition, when terminal 2 performs neighbor cell measurement, it can determine the time domain window of the SSB of the adjacent SSB of the first SSB in cell 2. It is only necessary to measure the time domain window of the SSB of the adjacent SSB in cell 2, without having to measure the time domain windows of each SSB included in cell 2. This reduces the complexity of the terminal's mobility process and the terminal's power consumption.

[0283] Based on any of the above embodiments, when the non-terrestrial communication system is a satellite communication system, the satellite's bandgap coverage is typically tens of kilometers, and the terminal does not frequently change bandgap positions. However, there are special scenarios where the terminal happens to be at the edge of multiple bandgap positions. In such scenarios, the terminal may move back and forth between multiple bandgap positions at the edge. When the terminal detects beam ping-pong, it can store the system information of multiple bandgap positions on the ping-pong loop to avoid repeatedly receiving the same system information.

[0284] Figure 15 is a schematic flowchart of another information transmission method provided in an embodiment of this disclosure. It should be noted that the information transmission method in this embodiment is executed by a network device.

[0285] As shown in Figure 15, the information transmission method may include the following steps:

[0286] Step 1501: Send first system information of the first wave position, wherein the terminal is located in the first wave position of the cell covered by the network device, and the first system information differs from the system information received by at least one wave position in the cell.

[0287] It should be noted that in related technologies, the network device sends the cell's configuration information, i.e., it performs cell-level broadcasting. In this method, because the network device needs to consider the configuration information of each wave position, the amount of data sent by the network device to the terminal is relatively large, resulting in high network overhead. Therefore, in this embodiment, the network device sends the configuration information of the first wave position to the terminal located in the first wave position, without needing to consider other wave positions. Thus, the amount of data sent by the network device to the terminal can be reduced, thereby lowering network overhead.

[0288] The information transmission method provided in this disclosure involves a network device sending first system information. A terminal is located at the first waveband of a cell covered by the network device, and the first system information differs from the system information of at least one waveband in the cell. This allows for the transmission of different system information to terminals located at different wavebands or waveband groups, increasing the flexibility of system information configuration.

[0289] It should be noted that the network device in this embodiment can send different system information on different wavelengths, and can also send different system information between different wavelength groups.

[0290] To clearly understand this disclosure, the following diagram illustrates the transmission of system information at the wavelength level and wavelength group level, using a network device as a satellite. As shown in Figure 16, the network device transmits system information SI1 on wavelength 1, SI2 on wavelength 2, and SI3 on ​​wavelength 3. It should be noted that SI1, SI2, and SI3 are different; that is, they are all distinct. Furthermore, for wavelength group 1 in Figure 16, all system information within it is identical. Figure 16 uses SI6 as an example of system information in wavelength group 1. Similarly, for wavelength group 2 in Figure 16, all system information within it is identical. Figure 16 uses SI7 as an example of system information in wavelength group 2. It is understood that the system information within the same wavelength group within a cell is identical, while the system information between different wavelength groups within a cell is different.

[0291] In one embodiment of this disclosure, the first system information includes: a first indication, wherein the first indication is used to indicate that any system information received by the terminal within the cell is valid in the corresponding wave position or in the corresponding wave position group.

[0292] In one embodiment of this disclosure, the first system information includes a second indication;

[0293] The second indication is used to indicate the group identifier of the wave position group to which the first wave position belongs, wherein the system information of the wave positions in the wave position group is the same.

[0294] In one embodiment of this disclosure, the first system information includes a third indication;

[0295] The third instruction is used to indicate the first system information block that is valid in the first wave position, or that is valid in the wave position group to which the first wave position belongs.

[0296] In one embodiment of this disclosure, the first system information block belongs to other system information of the first system information.

[0297] In one embodiment of this disclosure, at least one of the first instruction, the second instruction, and the third instruction carries a second system information block that carries the first system information.

[0298] In one embodiment of this disclosure, the second system information block includes: system information block SIB1.

[0299] In one embodiment of this disclosure, the first system information includes: a third system information block.

[0300] Any information cell within the third system information block is valid within the first wave position, or valid within the wave position group to which the first wave position belongs.

[0301] In one embodiment of this disclosure, when the first wave position is located at the edge of a cell and is adjacent to a neighboring cell of the cell, the first system information of the first wave position includes: wave position information of the adjacent wave positions of the first wave position in the cell and wave position information of the adjacent wave positions of the first wave position in the neighboring cells.

[0302] Adjacent wave positions refer to wave positions that are adjacent to the first wave position.

[0303] The wave position information of the adjacent wave positions of the first wave position refers to information related to the adjacent wave positions of the first wave position. For example, the wave position information may include, but is not limited to: the center point coordinate information of the adjacent wave positions, the SSB index, interference information, etc. The wave position information may also include other information related to the adjacent wave positions. This embodiment does not specifically limit the wave position information.

[0304] In one embodiment of this disclosure, in order to facilitate the network device to obtain the wave position information of the adjacent wave positions of the first wave position in the adjacent cell, the information transmission method may further include: receiving the configuration information of the adjacent cell sent by the network device of the adjacent cell, wherein the configuration information of the adjacent cell includes: the wave position information of the wave position located in the adjacent cell and adjacent to the first wave position.

[0305] Among them, network devices in neighboring cells can send configuration information of neighboring cells through one of the following messages: XNSETUP REQUEST message; XNSETUP RESPONSE message; NG-RAN NODE CONFIGURATION UPDATE message; NG-RAN NODE CONFIGURATION UPDATE ACKNOWLEDGE message.

[0306] In one embodiment of this disclosure, when there are neighboring cells in the cell, in order to facilitate the switching of the third wave position of the neighboring cell, the message transmission method may further include: sending the cell configuration information to the network device of the neighboring cell, wherein the cell configuration information includes: the wave position information of the third wave position of the cell.

[0307] In one embodiment of this disclosure, cell configuration information can be sent to network devices in neighboring cells via one of the following messages: XNSETUP REQUEST message; XNSETUP RESPONSE message; NG-RAN NODE CONFIGURATION UPDATE message; and NG-RAN NODE CONFIGURATION UPDATE ACKNOWLEDGE message.

[0308] In one exemplary implementation, when the cell of the network device is started, the network device can send the configuration information of the cell to the network device of the neighboring cell through the XNSETUP REQUEST message or the XNSETUP RESPONSE message. The configuration information of the cell includes the wavelet information of the third wavelet of the cell.

[0309] The third wave position refers to the wave position adjacent to the neighboring cell within the same cell. In other words, the third wave position refers to the edge wave position adjacent to the neighboring cell within the same cell.

[0310] As another exemplary implementation, when the network device determines that the wave position information of the third wave position has been updated, the network device can send the updated configuration information of the cell to the network device of the neighboring cell through the NG-RAN NODE CONFIGURATION UPDATE message or the NG-RAN NODE CONFIGURATION UPDATE ACKNOWLEDGE message. The updated configuration information of the cell includes the updated wave position information of the third wave position of the cell.

[0311] To facilitate a clear understanding of this disclosure, the process of information interaction between network devices is described below with reference to Figure 17. It should be noted that Figure 17 uses satellite-based base station 1 as the network device, cell 1 as its current coverage area, cell 2 as its neighboring cell, and satellite-based base station 2 as the network device corresponding to cell 2. It should be emphasized that satellite-based base station 1 and satellite-based base station 2 are adjacent to each other.

[0312] It is understandable that the network equipment in the adjacent cell refers to the network equipment that covers the adjacent cell.

[0313] As shown in Figure 17, the method may include:

[0314] Step 1701: After detecting the startup of its cell 1, the satellite base station 1 sends an XNSETUP REQUEST message to the satellite base station 2. The XNSETUP REQUEST message includes the configuration information of cell 1, which includes the wavelet information of the third wavelet of cell 1.

[0315] It is understood that in this embodiment, the third wave position information of cell 1 is added to the original content included in the configuration information of cell 1.

[0316] Step 1702: Satellite base station 2 sends an XNSETUP RESPONSE message to satellite base station 1. The XNSETUP RESPONSE message includes the configuration information of cell 2, which includes the wavelet information of the fourth wavelet of cell 2.

[0317] The fourth wave position refers to the wave position in cell 2 that is adjacent to cell 1. In other words, the fourth wave position refers to the edge wave position in cell 2 that is adjacent to cell 1.

[0318] It should be noted that when satellite base station 1 detects a change in the wavelet information of the third wavelet of its cell 1, the interaction process between satellite base station 1 and satellite base station 2 is shown in Figure 18.

[0319] As shown in Figure 18, it includes:

[0320] Step 1801: After detecting a change in the wavelet information of the third wavelet of its cell 1, the satellite base station 1 sends an NG-RAN NODE CONFIGURATION UPDATE message to the satellite base station 2. The NG-RAN NODE CONFIGURATION UPDATE message includes the updated configuration information of cell 1, which includes the updated wavelet information of the third wavelet of cell 1.

[0321] Step 1802, the satellite base station 2 sends an NG-RAN NODE CONFIGURATION UPDATE ACKNOWLEDGE message, which includes: the updated configuration information of cell 2, including the updated wavelet information of the fourth wavelet of cell 2.

[0322] To implement the above embodiments, this disclosure also proposes an information transmission device.

[0323] Figure 19 is a schematic diagram of an information transmission device provided in an embodiment of this disclosure. It should be noted that this information transmission device is applied to a terminal.

[0324] As shown in Figure 19, the information transmission device 1900 includes a receiving module 1901, wherein:

[0325] The receiving module 1901 is used to receive first system information, wherein the terminal is located at the first position of the cell covered by the network device, and the first system information differs from the system information of at least one position in the cell.

[0326] In one embodiment of this disclosure, the first system information includes: a first indication, wherein the first indication is used to indicate that any system information received by the terminal within the cell is valid in the corresponding wave position or in the corresponding wave position group.

[0327] In one embodiment of this disclosure, the first system information includes a second indication;

[0328] The second indication is used to indicate the group identifier of the wave position group to which the first wave position belongs, wherein the system information of the wave positions in the wave position group is the same.

[0329] In one embodiment of this disclosure, the first system information includes a third indication;

[0330] The third instruction is used to indicate the first system information block that is valid in the first wave position, or that is valid in the wave position group to which the first wave position belongs.

[0331] In one embodiment of this disclosure, the first system information block belongs to other system information of the first system information.

[0332] In one embodiment of this disclosure, at least one of the first indication, the second indication, and the third indication carries a second system information block containing the first system information.

[0333] In one embodiment of this disclosure, the second system information block includes: system information block 1.

[0334] In one embodiment of this disclosure, the first system information includes: a third system information block.

[0335] Any information cell within the third system information block is valid within the first wave position, or valid within the wave position group to which the first wave position belongs.

[0336] In one embodiment of this disclosure, when the first indication is used to indicate that any system information received by the terminal within the cell is valid for the corresponding waveform, the apparatus further includes:

[0337] When the terminal switches from the first wave position to the second wave position, it receives the second system information of the second wave position, wherein the second system information differs from the first system information.

[0338] In one embodiment of this disclosure, the apparatus further includes:

[0339] The receiving module 1901 is further configured to receive the first system information block in the second system information of the second wave position when the terminal switches from the first wave position to the second wave position and determines, based on the third indication, that the first system information block in the first system information is valid in the first wave position.

[0340] In one embodiment of this disclosure, when a terminal switches from a first wave position to a second wave position, and it is determined based on a third indication that a first system information block in the first system information is valid in the first wave position, receiving the first system information block in the second system information of the second wave position includes:

[0341] When the terminal switches from the first wave position to the second wave position, and determines that the first system information block in the first system information is valid in the first wave position based on the third indication, the second indication in the second system information is received. The second indication in the second system information is used to indicate the group identifier of the wave position group to which the second wave position belongs.

[0342] If the group identifier of the second wave position group is different from the group identifier of the first wave position group, the first system information block in the second system information of the second wave position is received.

[0343] In one embodiment of this disclosure, when the terminal switches from a first wave position to a second wave position, receiving a first system information block from the second system information of the second wave position includes:

[0344] When the terminal switches from the first wave position to the second wave position, it receives the second indication in the second system information. The second indication in the second system information is used to indicate the group identifier of the wave position group to which the second wave position belongs.

[0345] If the group identifier of the second wave position group is different from the group identifier of the first wave position group, the first system information block in the second system information of the second wave position is received.

[0346] In one embodiment of this disclosure, the apparatus further includes:

[0347] The receiving module 1901 is further configured to receive the second system information block of the second wave position when the group identifier of the wave position group to which the second wave position belongs is different from the group identifier of the wave position group to which the first wave position belongs, and when the first system information block in the first system information is determined based on the third indication, the receiving module 1901 is configured to receive the second system information block of the second wave position.

[0348] In one embodiment of this disclosure, when any information cell within the third system information block is valid within the first bit, the apparatus further includes:

[0349] The receiving module 1901 is also used to receive the third system information block in the second system information of the second wave position when the terminal switches from the first wave position to the second wave position.

[0350] In one embodiment of this disclosure, when the first wave position is located at the edge of a cell and is adjacent to a neighboring cell of the cell, the first system information of the first wave position includes: wave position information of the adjacent wave positions of the first wave position in the cell and wave position information of the adjacent wave positions of the first wave position in the neighboring cells.

[0351] It should be noted that the foregoing explanation of the information transmission method embodiment also applies to the information transmission device of this embodiment, and will not be repeated here.

[0352] The information transmission apparatus of this disclosure receives first system information, wherein the terminal is located at the first waveband of a cell covered by the network device, and the first system information differs from the system information of at least one waveband in the cell. This allows terminals located at different wavebands or waveband groups to receive different system information, increasing the flexibility of system information configuration.

[0353] Figure 20 is a schematic diagram of another information transmission device provided in an embodiment of this disclosure. It should be noted that this information transmission device is applied to a network device.

[0354] As shown in Figure 20, the information transmission device 2000 includes: a sending module 2001, wherein:

[0355] The transmitting module 2001 is used to transmit first system information of the first wave position, wherein the terminal is located in the first wave position of the cell covered by the network device, and the first system information differs from the system information received by at least one wave position in the cell.

[0356] In one embodiment of this disclosure, the first system information includes: a first indication, wherein the first indication is used to indicate that any system information received by the terminal within the cell is valid in the corresponding wave position or in the corresponding wave position group.

[0357] In one embodiment of this disclosure, the first system information includes a second indication;

[0358] The second indication is used to indicate the group identifier of the wave position group to which the first wave position belongs, wherein the system information of the wave positions in the wave position group is the same.

[0359] In one embodiment of this disclosure, the first system information includes a third indication;

[0360] The third instruction is used to indicate the first system information block that is valid in the first wave position, or that is valid in the wave position group to which the first wave position belongs.

[0361] In one embodiment of this disclosure, the first system information block belongs to other system information of the first system information.

[0362] In one embodiment of this disclosure, at least one of the first indication, the second indication, and the third indication carries a second system information block that carries the first system information.

[0363] In one embodiment of this disclosure, the second system information block includes: system information block SIB1.

[0364] In one embodiment of this disclosure, the first system information includes: a third system information block.

[0365] Any information cell within the third system information block is valid within the first wave position, or valid within the wave position group to which the first wave position belongs.

[0366] In one embodiment of this disclosure, when the first wave position is located at the edge of a cell and is adjacent to a neighboring cell of the cell, the first system information of the first wave position includes: wave position information of the adjacent wave positions of the first wave position in the cell and wave position information of the adjacent wave positions of the first wave position in the neighboring cells.

[0367] In one embodiment of this disclosure, the apparatus further includes:

[0368] The receiving module is used to receive configuration information of neighboring cells sent by network devices of neighboring cells. The configuration information of neighboring cells includes: wave position information of wave positions located in neighboring cells and adjacent to the first wave position.

[0369] In one embodiment of this disclosure, when there are neighboring cells in a cell, the apparatus further includes:

[0370] The sending module 2001 is also used to send the configuration information of the cell to the network equipment of the neighboring cell. The configuration information of the cell includes the third wave position information of the cell, wherein the third wave position refers to the wave position that is adjacent to the neighboring cell in the cell.

[0371] In one embodiment of this disclosure, cell configuration information is sent to network devices in neighboring cells via one of the following messages:

[0372] XN interface establishment request XNSETUP REQUEST message;

[0373] The XN interface establishes a response via the XNSETUP RESPONSE message.

[0374] The NG-RAN NODE CONFIGURATION UPDATE message is sent to the radio access network node.

[0375] The NG-RAN NODE CONFIGURATION UPDATE ACKNOWLEDGE message confirms the wireless access network node configuration update.

[0376] The information transmission apparatus provided in this embodiment transmits first system information, wherein the terminal is located at the first waveband of a cell covered by the network device, and the first system information differs from the system information of at least one waveband in the cell. This increases the flexibility of system information configuration by transmitting different system information to terminals located at different wavebands or waveband groups.

[0377] To implement the above embodiments, this disclosure also proposes a communication device, as shown in FIG21, which is a block diagram of a communication device for implementing an information transmission method according to an exemplary embodiment.

[0378] It should be noted that the communication device 2100 illustrated in Figure 21 can be a network device, a terminal, a chip, chip system, or processor that supports the implementation of any of the above methods in a network device, or a chip, chip system, or processor that supports the implementation of any of the above methods in a terminal. The communication device 2100 can be used to implement the methods described in the above method embodiments, and specific details can be found in the descriptions in the above method embodiments.

[0379] As shown in Figure 21, the communication device 2100 includes one or more processors 2101. The processor 2101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminals, terminal chips, distributed units (DUs) or centralized units (CUs), execute programs, and process program data. The processor 2101 is used to invoke instructions to cause the communication device 2100 to execute any of the above methods.

[0380] In some embodiments, the communication device 2100 further includes one or more memories 2102 for storing instructions. In some embodiments, all or part of the memories 2102 may also be located outside the communication device 2100.

[0381] In some embodiments, the communication device 2100 further includes one or more transceivers 2103. When the communication device 2100 includes one or more transceivers 2103, the communication steps such as sending and receiving in the above method are performed by the transceivers 2103, and other steps are performed by the processor 2101.

[0382] In some embodiments, transceiver 2103 may include a receiver and a transmitter, which may be separate or integrated together. In some embodiments, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0383] In some embodiments, the communication device 2100 further includes one or more interface circuits 2104 connected to the memory 2102. The interface circuits 2104 can be used to receive signals from the memory 2102 or other devices, and can be used to send signals to the memory 2102 or other devices. For example, the interface circuits 2104 can read instructions stored in the memory 2102 and send the instructions to the processor 2101.

[0384] The communication device 2100 described in the above embodiments may be a terminal or a network device, but the scope of the communication device 2100 described in this disclosure is not limited thereto, and the structure of the communication device 2100 may not be limited by FIG. 21. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit (IC), or chip, or chip system or subsystem; (2) a collection of one or more ICs, in some embodiments, the above IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal, smart terminal, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0385] Figure 22 is a schematic diagram of a chip structure according to an exemplary embodiment. For cases where the communication device 2100 can be a chip or a chip system, please refer to the schematic diagram of the chip 2200 shown in Figure 22, but it is not limited thereto.

[0386] Chip 2200 includes one or more processors 2201, which are used to invoke instructions to cause chip 2200 to perform any of the above methods.

[0387] In some embodiments, chip 2200 further includes one or more memories 2202 for storing instructions. In some embodiments, all or part of the memories 2202 may be located outside of chip 2200.

[0388] In some embodiments, chip 2200 further includes one or more interface circuits 2203 connected to memory 2202. Interface circuits 2203 can be used to receive signals from memory 2202 or other devices, and can also be used to send signals to memory 2202 or other devices. For example, interface circuit 2203 can read instructions stored in memory 2202 and send those instructions to processor 2201. In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver can be used interchangeably.

[0389] In some embodiments, chip 2200 further includes one or more memories 2202 for storing instructions. In some embodiments, all or part of the memories 2202 may be located outside of chip 2200.

[0390] This disclosure also proposes a communication system comprising: a terminal and a network device; wherein the terminal is configured to perform the method as described in the first aspect, and the network device is configured to perform the method as described in the second aspect.

[0391] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device 2100, cause the communication device 2100 to perform any of the methods described above. In some embodiments, the storage medium is an electronic storage medium. In some embodiments, the storage medium is a computer-readable storage medium, but is not limited thereto; it may also be a storage medium readable by other devices. In some embodiments, the storage medium may be a non-transitory storage medium, but is not limited thereto; it may also be a temporary storage medium.

[0392] This disclosure also proposes a program product that, when executed by a communication device 2100, causes the communication device 2100 to perform any of the above methods. In some embodiments, the program product is a computer program product.

[0393] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0394] It is understood that the aforementioned information transmission device, communication equipment, communication system, storage medium, program product, and computer program are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0395] It should be noted that, in the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0396] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0397] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0398] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium. When executed, the program includes one or a combination of the steps of the method embodiments.

[0399] Furthermore, the functional units in the various embodiments of this disclosure can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0400] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.

[0401] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0402] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. An information transmission method, characterized in that, The method is applied to a terminal, and the method includes: The terminal receives first system information, wherein the terminal is located at the first wave position of the cell covered by the network device, and the first system information differs from the system information of at least one wave position in the cell.

2. The method as described in claim 1, characterized in that, The first system information includes: a first indication, wherein the first indication is used to indicate that any system information received by the terminal within the cell is valid in the corresponding wave position or in the corresponding wave position group.

3. The method as described in claim 1 or 2, characterized in that, The first system information includes a second indication; The second indication is used to indicate the group identifier of the wave position group to which the first wave position belongs, wherein the system information of the wave positions in the wave position group is the same.

4. The method according to any one of claims 1-3, characterized in that, The first system information includes a third indication; The third indication is used to indicate a first system information block in the first system information that is valid in the first wave position, or that is valid in the wave position group to which the first wave position belongs.

5. The method as described in claim 4, characterized in that, The first system information block belongs to other system information of the first system information.

6. The method according to any one of claims 2-5, characterized in that, A second system information block carrying the first system information in at least one of the first indication, the second indication, and the third indication.

7. The method as described in claim 6, characterized in that, The second system information block includes: system information block 1.

8. The method according to any one of claims 1-3 and 6-7, characterized in that, The first system information includes: the third system information block. Any information element within the third system information block is valid within the first wave position, or valid within the wave position group to which the first wave position belongs.

9. The method as described in claim 2, characterized in that, When the first indication is used to indicate that any system information received by the terminal within the cell is valid for the corresponding wavelength, the method further includes: When the terminal switches from the first wave position to the second wave position, it receives the second system information of the second wave position, wherein the second system information differs from the first system information.

10. The method as described in claim 4 or 5, characterized in that, The method further includes: When the terminal switches from the first wave position to the second wave position, and determines, based on the third indication, that the first system information block in the first system information is valid in the first wave position, the terminal receives the first system information block in the second system information of the second wave position.

11. The method as described in claim 10, characterized in that, When the terminal switches from the first wave position to the second wave position, and determines, based on the third indication, that the first system information block in the first system information is valid in the first wave position, receiving the first system information block in the second system information of the second wave position includes: When the terminal switches from the first wave position to the second wave position, and determines based on the third indication that the first system information block in the first system information is valid in the first wave position, it receives the second indication in the second system information. The second indication in the second system information is used to indicate the group identifier of the wave position group to which the second wave position belongs. If the group identifier of the wavelet group to which the second wavelet belongs is different from the group identifier of the wavelet group to which the first wavelet belongs, the first system information block in the second system information of the second wavelet is received.

12. The method as described in claim 4 or 5, characterized in that, The method further includes: When the terminal switches from the first wave position to the second wave position, it receives a second indication in the second system information. The second indication in the second system information is used to indicate the group identifier of the wave position group to which the second wave position belongs. If the group identifier of the wavelet group to which the second wavelet belongs is different from the group identifier of the wavelet group to which the first wavelet belongs, the first system information block in the second system information of the second wavelet is received.

13. The method as described in claim 12, characterized in that, The step of receiving the first system information block in the second system information of the second wave position when the group identifier of the wave position group to which the second wave position belongs is different from the group identifier of the wave position group to which the first wave position belongs includes: If the group identifier of the wave group to which the second wave position belongs is different from the group identifier of the wave group to which the first wave position belongs, and the first system information block in the first system information is determined based on the third indication to be valid in the first wave position, the first system information block in the second system information of the second wave position is received.

14. The method as described in claim 8, characterized in that, If any cell within the third system information block is valid within the first bit, the method further includes: When the terminal switches from the first wave position to the second wave position, it receives the third system information block in the second system information of the second wave position.

15. The method according to any one of claims 1-14, characterized in that, When the first wave position is located at the edge of the cell and is adjacent to a neighboring cell of the cell, the first system information of the first wave position includes: the wave position information of the first wave position in the neighboring wave position of the cell and the wave position information of the first wave position in the neighboring wave position of the neighboring cell.

16. An information transmission method, characterized in that, The method is applied to a network device, and the method includes: Sending first system information for a first wave position, wherein the terminal is located in the first wave position of the cell covered by the network device, and the first system information differs from the system information received by at least one wave position in the cell.

17. The method as described in claim 16, characterized in that, The first system information includes: a first indication, wherein the first indication is used to indicate that any system information received by the terminal within the cell is valid in the corresponding wave position or in the corresponding wave position group.

18. The method as described in claim 16 or 17, characterized in that, The first system information includes a second indication; The second indication is used to indicate the group identifier of the wave position group to which the first wave position belongs, wherein the system information of the wave positions in the wave position group is the same.

19. The method according to any one of claims 17-18, characterized in that, The first system information includes a third indication; The third indication is used to indicate a first system information block in the first system information that is valid in the first wave position, or that is valid in the wave position group to which the first wave position belongs.

20. The method as described in claim 19, characterized in that, The first system information block belongs to other system information of the first system information.

21. The method according to any one of claims 17-20, characterized in that, At least one of the first indication, the second indication, and the third indication carries a second system information block that carries the first system information.

22. The method as described in claim 21, characterized in that, The second system information block includes: System Information Block SIB1.

23. The method according to any one of claims 16-22, characterized in that, The first system information includes: the third system information block. Any information cell within the third system information block is valid within the first wave position, or valid within the wave position group to which the first wave position belongs.

24. The method according to any one of claims 16-23, characterized in that, When the first wave position is located at the edge of the cell and is adjacent to a neighboring cell of the cell, the first system information of the first wave position includes: the wave position information of the first wave position in the neighboring wave position of the cell and the wave position information of the first wave position in the neighboring wave position of the neighboring cell.

25. The method as described in claim 24, characterized in that, The method further includes: The configuration information of the neighboring cell sent by the network device of the neighboring cell includes: the wave position information of the wave position located in the neighboring cell and adjacent to the first wave position.

26. The method according to any one of claims 16-23, characterized in that, If the cell has neighboring cells, the method further includes: The configuration information of the cell is sent to the network device of the neighboring cell, wherein the configuration information of the cell includes: the wave position information of the third wave position of the cell, wherein the third wave position refers to the wave position adjacent to the neighboring cell in the cell.

27. The method as described in claim 26, characterized in that, Send the configuration information of the neighboring cell to the network device of the neighboring cell using one of the following messages: XN interface establishment request XNSETUP REQUEST message; The XN interface establishes a response via the XNSETUP RESPONSE message. The NG-RAN NODE CONFIGURATION UPDATE message is sent to the radio access network node. The NG-RAN NODE CONFIGURATION UPDATE ACKNOWLEDGE message confirms the wireless access network node configuration update.

28. An information transmission device, characterized in that, The device is used in a terminal, and the device includes: A receiving module is used to receive first system information, wherein the terminal is located at the first wave position of the cell covered by the network device, and the first system information differs from the system information received at least one wave position in the cell.

29. An information transmission device, characterized in that, The device is used in a network device, and the device includes: The transmitting module is used to transmit first system information of the first wave position, wherein the terminal is located in the first wave position of the cell covered by the network device, and the first system information differs from the system information received by at least one wave position in the cell.

30. A communication system, characterized in that, The device includes a terminal and a network device, wherein the terminal is used to perform the method of any one of claims 1-15, and the network device is used to perform the method of any one of claims 16-27.

31. A communication device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, when the processor executes the computer program, it implements the method as described in any one of claims 1-15, or the method as described in any one of claims 16-27.

32. A chip, characterized in that, The device includes one or more interface circuits and one or more processors; the interface circuits are configured to receive signals from the memory of the communication device and send the received signals to the processors, the received signals including computer instructions stored in the memory, which, when executed by the processors, cause the communication device to perform the method of any one of claims 1-15, or the method of any one of claims 16-27.

33. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method of any one of claims 1-15, or the method of any one of claims 16-27.

34. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method of any one of claims 1-15, or the method of any one of claims 16-27.

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