Satellite system-oriented information processing method and device, satellite system-oriented information indicating method and device and storage medium

Abstract

The invention discloses an information processing and indicating method and device for a satellite system, and a storage medium, relates to the technical field of communication, and aims to reduce interference between two adjacent network devices with the same frequency. The method comprises the following steps: receiving first information sent by network equipment; determining information of a TDD frame according to the first information; wherein the first information is used for indicating TDD uplink and downlink time slot configuration patterns, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices with the same frequency are different. According to the embodiment of the invention, interference between two adjacent network devices with the same frequency can be reduced.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information processing and indication method, device, and storage medium for a satellite system. Background Art

[0002] The time division duplex (TDD) frame structure supports a maximum period of 20ms and consists of two 10ms radio frames concatenated, each configured independently. In satellite scenarios, transmission latency is long, and all satellites are frame-synchronized. For two adjacent satellites, when satellite 1 transmits a downlink signal through its corresponding network equipment, adjacent satellite 2 may receive the downlink signal from satellite 1 during its uplink timeslot. Therefore, when co-channeling, interference may occur between the network equipment of satellite 1 and that of satellite 2. Summary of the Invention

[0003] Embodiments of the present application provide an information processing and indication method, apparatus, and storage medium to reduce interference between two adjacent network devices on the same frequency.

[0004] In a first aspect, an embodiment of the present application provides an information processing method for a satellite system, which is applied to a terminal and includes:

[0005] receiving first information sent by a network device;

[0006] Determine information of the TDD frame according to the first information;

[0007] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0008] Optionally, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot;

[0009] The flexible time slot includes:

[0010] Number of downlink symbols, guard interval, and number of uplink symbols; or

[0011] Number of downlink symbols, guard interval; or

[0012] Guard interval.

[0013] Optionally, the first information includes:

[0014] A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern;

[0015] The second indication is used to indicate the number of downlink time slots in the entire downlink-uplink DL-UL transmission model cycle;

[0016] A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0017] A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model;

[0018] The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0019] Optionally, the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes:

[0020] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or

[0021] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0022] Optionally, if the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern:

[0023] The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0024] The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

[0025] Optionally, if the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

[0026] Optionally, for two co-frequency adjacent network devices, if the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is located before the uplink time slot, and the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device is located before the downlink time slot:

[0027] In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay;

[0028] The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes:

[0029] a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or

[0030] The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0031] Optionally, the determining the time division duplex (TDD) frame information according to the first information includes:

[0032] receiving second information sent by the network device, wherein the second information includes a synchronization signal / physical broadcast channel signal block (Synchronization Signal and PBCH block, SSB);

[0033] determining frame header information of the TDD frame according to the second information;

[0034] The information of the TDD frame is acquired according to the first information and the frame header information.

[0035] In a second aspect, an embodiment of the present application provides a satellite system-oriented information indication method, which is applied to a network device, including:

[0036] Sending first information to the terminal;

[0037] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0038] Optionally, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot;

[0039] The flexible time slot includes:

[0040] Number of downlink symbols, guard interval, and number of uplink symbols; or

[0041] Number of downlink symbols, guard interval; or

[0042] Guard interval.

[0043] Optionally, the first information includes:

[0044] A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern;

[0045] The second indication is used to indicate the number of downlink time slots in the cycle of the entire DL-UL transmission model;

[0046] A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0047] A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model;

[0048] The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0049] Optionally, the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes:

[0050] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or

[0051] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0052] Optionally, if the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern:

[0053] The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0054] The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

[0055] Optionally, if the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

[0056] Optionally, for two co-frequency adjacent network devices, if the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is located before the uplink time slot, and the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device is located before the downlink time slot:

[0057] In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay;

[0058] The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes:

[0059] a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or

[0060] The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0061] Optionally, the method further includes:

[0062] Send second information to the terminal, wherein the second information is used to determine frame header information of the TDD frame, and the second information includes SSB.

[0063] In a third aspect, an embodiment of the present application provides an information processing device for a satellite system, which is applied to a terminal and includes: a memory, a transceiver, and a processor:

[0064] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0065] receiving first information sent by a network device;

[0066] Determine information of the TDD frame according to the first information;

[0067] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0068] Optionally, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot;

[0069] The flexible time slot includes:

[0070] Number of downlink symbols, guard interval, and number of uplink symbols; or

[0071] Number of downlink symbols, guard interval; or

[0072] Guard interval.

[0073] Optionally, the first information includes:

[0074] A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern;

[0075] The second indication is used to indicate the number of downlink time slots in the cycle of the entire DL-UL transmission model;

[0076] A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0077] A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model;

[0078] The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0079] Optionally, the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes:

[0080] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or

[0081] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0082] Optionally, if the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern:

[0083] The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0084] The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

[0085] Optionally, if the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

[0086] Optionally, for two co-frequency adjacent network devices, if the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is located before the uplink time slot, and the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device is located before the downlink time slot:

[0087] In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay;

[0088] The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes:

[0089] a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or

[0090] The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0091] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0092] receiving second information sent by the network device, wherein the second information includes SSB;

[0093] determining frame header information of the TDD frame according to the second information;

[0094] The information of the TDD frame is acquired according to the first information and the frame header information.

[0095] In a fourth aspect, an embodiment of the present application provides an information indication device for a satellite system, which is applied to a network device, including: a memory, a transceiver, and a processor:

[0096] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0097] Sending first information to the terminal;

[0098] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0099] Optionally, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot;

[0100] The flexible time slot includes:

[0101] Number of downlink symbols, guard interval, and number of uplink symbols; or

[0102] Number of downlink symbols, guard interval; or

[0103] Guard interval.

[0104] Optionally, the first information includes:

[0105] A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern;

[0106] The second indication is used to indicate the number of downlink time slots in the cycle of the entire DL-UL transmission model;

[0107] A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0108] A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model;

[0109] The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0110] Optionally, the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes:

[0111] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or

[0112] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0113] Optionally, if the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern:

[0114] The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0115] The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

[0116] Optionally, if the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

[0117] Optionally, for two co-frequency adjacent network devices, if the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is located before the uplink time slot, and the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device is located before the downlink time slot:

[0118] In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay;

[0119] The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes:

[0120] a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or

[0121] The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0122] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0123] Send second information to the terminal, wherein the second information is used to determine frame header information of the TDD frame, and the second information includes SSB.

[0124] In a fifth aspect, an embodiment of the present application provides an information processing device for a satellite system, applied to a terminal, including:

[0125] A first receiving unit, configured to receive first information sent by a network device;

[0126] a first processing unit, configured to determine information of a TDD frame according to the first information;

[0127] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0128] In a sixth aspect, an embodiment of the present application provides an information indication device for a satellite system, which is applied to a network device, including:

[0129] A first sending unit, configured to send first information to a terminal;

[0130] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0131] In a seventh aspect, an embodiment of the present application further provides a processor-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the information processing or indication method described above are implemented.

[0132] In an eighth aspect, an embodiment of the present application further provides a computer program product, comprising computer instructions, which, when executed by a processor, implement the steps in the information processing or indication method described above.

[0133] In an embodiment of the present application, the terminal receives the first information sent by the network device and determines the information of the TDD frame based on the first information. Since the first information indicates the TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices with the same frequency are different, the two adjacent network devices with the same frequency can adopt different TDD frame structures, thereby reducing interference between the two adjacent network devices with the same frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0134] Figure 1 is a flowchart of an information processing method for a satellite system provided in an embodiment of the present application;

[0135] Figure 2 Schematic diagram of TDD uplink and downlink time slot configuration pattern in an embodiment of the present application;

[0136] Figure 3 is a schematic diagram of flexible time slots in an embodiment of the present application;

[0137] Figure 4 is a schematic diagram of the first information in an embodiment of the present application;

[0138] Figure 5This is one of the schematic diagrams of the TDD frame structure in the embodiment of the present application;

[0139] Figure 6 This is the second schematic diagram of the TDD frame structure in the embodiment of the present application;

[0140] Figure 7 This is the third schematic diagram of the TDD frame structure in the embodiment of the present application;

[0141] Figure 8 This is the fourth schematic diagram of the TDD frame structure in the embodiment of the present application;

[0142] Figure 9 This is a flowchart of a satellite system-oriented information indication method provided by an embodiment of the present application;

[0143] Figure 10 This is one of the structural diagrams of the information indication device for a satellite system provided in an embodiment of the present application;

[0144] Figure 11 This is one of the structural diagrams of the information processing device for satellite systems provided in an embodiment of the present application;

[0145] Figure 12 This is the second structural diagram of the information processing device for satellite systems provided in an embodiment of the present application;

[0146] Figure 13 This is the second structural diagram of the information indication device for the satellite system provided in the embodiment of the present application. DETAILED DESCRIPTION

[0147] In the embodiments of this application, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0148] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0149] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0150] The embodiments of the present application provide information processing and indication methods and devices for reducing interference between two adjacent network devices on the same frequency.

[0151] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0152] See also Figure 1 , Figure 1 This is a flow chart of the information processing method for a satellite system provided by an embodiment of the present application, which is applied to a terminal, such as Figure 1 As shown, the following steps are included:

[0153] Step 101: Receive first information sent by a network device.

[0154] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0155] In the embodiment of the present application, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot. The flexible time slot includes: number of downlink symbols, guard interval and number of uplink symbols; or number of downlink symbols, guard interval; or guard interval.

[0156] like Figure 2 Figure 2 shows a schematic diagram of TDD uplink and downlink time slot configuration. "U" represents an uplink time slot, "D" represents a downlink time slot, and "F" represents a flexible time slot. Flexible time slots can be configured as needed or used as guard intervals between uplink and downlink time slots and remain unused.

[0157] like Figure 3 As shown, the flexible time slot may include three parts: the number of downlink symbols, the guard interval (GAP) and the number of uplink symbols. It may also include the downlink symbols and the GAP as needed, or may include all the guard intervals.

[0158] The first information includes:

[0159] 1. A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0160] Among them, the relative position relationship may include: the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or, the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0161] In an embodiment of the present application, in order to distinguish the TDD frame structure, an indication high-level parameter (e.g., dl-UL-indicatorENUMERATED{0, 1}) is added to the radio resource control (RRC) message unit TDD-UL-DL-Pattern to indicate whether the uplink time slot is in front or the downlink time slot is in front. For example, 0 is used to indicate that the downlink time slot is in front, and 1 is used to indicate that the uplink time slot is in front; or, 0 is used to indicate that the uplink time slot is in front, and 1 is used to indicate that the downlink time slot is in front; the default configuration is that the downlink time slot is in front.

[0162] 2. The second indication (nrofDownlinkSlots) is used to indicate the number of downlink time slots in the period (dl-UL-TransmissionPeriodicity) of the entire downlink-uplink DL-UL transmission model.

[0163] 3. The third indication (nrofDownlinkSymbols) is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period.

[0164] If the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern, the third indication is used to indicate the number of downlink symbols in the time slot after the last continuous downlink time slot within the cycle of the entire DL-UL transmission model, for example, it may include symbols that share the same time slot as the downlink time slot and the uplink time slot, and symbols that share the same time slot as the flexible time slot; otherwise, it is used to indicate the number of downlink symbols within the cycle of the entire DL-UL transmission model.

[0165] 4. The fourth indication (nrofUplinkSlots) is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model.

[0166] 5. The fifth indication (nrofUplinkSymbols) is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0167] If the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern, the fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model; otherwise, it is used to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0168] like Figure 4 As shown in the embodiment of the present application, the above-mentioned first information can be defined by the information units TDD-UL-DL-ConfigCommon and TDD-UL-DL-Pattern, and the first information can also be called uplink and downlink configuration. Figure 4 The meaning of each parameter in can refer to the description of the above embodiment.

[0169] In an embodiment of the present application, in order not to affect the downlink initial synchronization process, if the TDD frame structure period is 10ms, the time length of the uplink time slot is less than 5ms, or if the TDD frame structure period is 20ms, the time length of the uplink time slot is less than 10ms. Specifically, in order to ensure the existence of the synchronization signal / physical broadcast channel signal block (SynchronizationSignal and PBCH block, SSB) burst in the TDD frame structure. For a TDD frame structure with a period of 10ms, the uplink time slot is less than 5ms; for a TDD frame structure with a period of 20ms, the uplink time slot is less than 10ms.

[0170] like Figure 5 As shown in the figure, the uplink and downlink time slot configuration for a 10ms TDD frame structure. For a 10ms TDD frame structure, the uplink time slot is less than 5ms. Figure 6 and Figure 7 The figure shows the uplink and downlink time slot configuration for a 20ms TDD frame structure. For a 20ms TDD frame structure, the uplink time slot is less than 10ms.

[0171] In the embodiment of the present application, the first information may be carried in a system information block (SIB). The network device may be a network device arranged in a satellite network or a high-altitude platform, such as a base station.

[0172] Step 102: Determine TDD frame information according to the first information.

[0173] In this step, the terminal may receive the second information sent by the network device and determine the frame header information of the TDD frame according to the second information. Thereafter, the terminal obtains the information of the TDD frame according to the first information and the frame header information.

[0174] For example, the second information may be a synchronization signal / physical broadcast channel signal block (SynchronizationSignal and PBCH block, SSB). The terminal determines the physical broadcast channel (PBCH) by parsing the SSB and decodes the PBCH. The PBCH includes a master information block (MIB) and other information related to the SSB transmission time (additional timing related PBCH payload bits). On the PBCH, the terminal receives the MIB message, obtains the SSB index (SSB index) and the half-frame indication, and determines the frame header information of the TDD frame. Afterwards, the system information block (SIB) is parsed, and combined with the frame header information, the TDD uplink and downlink time slot configuration pattern is obtained, and then the TDD frame structure, uplink and downlink time slot configuration information, etc. are obtained.

[0175] In an embodiment of the present application, the terminal receives the first information sent by the network device and determines the information of the TDD frame based on the first information. Since the first information indicates the TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices with the same frequency are different, the two adjacent network devices with the same frequency can adopt different TDD frame structures, thereby reducing interference between the two adjacent network devices with the same frequency.

[0176] For example, when a satellite communication network is networked using TDD on the same frequency, different TDD frame structures are used between two adjacent satellites on the same orbit, thereby reducing interference between the two adjacent satellites on the same frequency.

[0177] Optionally, for two co-frequency adjacent network devices, if the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is located before the uplink time slot, and the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device is located before the downlink time slot:

[0178] In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay;

[0179] The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes:

[0180] a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or

[0181] The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0182] For example, if the flexible time slot in the TDD uplink and downlink time slot configuration pattern of the second network device does not include the number of downlink symbols, or the flexible time slot is located before the downlink time slot, the actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes: the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0183] For example, if in the TDD uplink and downlink time slot configuration pattern of the second network device, the flexible time slot is located after the downlink time slot and the flexible time slot includes the number of downlink symbols, the actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes: the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slot composed of the number of downlink symbols of the flexible time slot in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0184] For example, for satellite application scenarios, the altitude of low Earth Orbit (LEO) satellites is between 500km and 1500km, the altitude of medium Earth Orbit (MEO) satellites is 10,000km, and the altitude of high Earth Orbit satellites is 35,786km. The inter-satellite transmission distance is also very far. Taking an orbital altitude of 600km and 60 LEO satellites per orbital plane as an example, the inter-satellite distance is about 730km, and the inter-satellite link propagation delay Tdalay is about 2.4ms. When the satellite communication system adopts the TDD standard, different TDD uplink and downlink time slot patterns are used between adjacent satellites on the same orbit, such as Figure 8 As shown, the uplink time slot length Tul of satellite 2 is less than 2.4ms, and the downlink signal of satellite 1 will not interfere with the uplink of satellite 2; if the downlink end time point of satellite 2 is more than 2.4ms away from the uplink start time Tgap of satellite 1, the downlink signal of satellite 2 will not interfere with the uplink of satellite 1, thereby reducing inter-satellite interference.

[0185] See also Figure 9 , Figure 9 This is a flow chart of the information processing method for satellite systems provided by an embodiment of the present application, which is applied to network devices such as Figure 9 As shown, the following steps are included:

[0186] Step 901: Send first information to a terminal;

[0187] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0188] The first information includes:

[0189] 1. A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0190] In the embodiment of the present application, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot. The flexible time slot includes: number of downlink symbols, guard interval and number of uplink symbols; or number of downlink symbols, guard interval; or guard interval.

[0191] Among them, the relative position relationship may include: the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or, the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0192] In an embodiment of the present application, in order to distinguish the TDD frame structure, an indication high-level parameter (e.g., dl-UL-indicatorENUMERATED{0, 1}) is added to the radio resource control (RRC) message unit TDD-UL-DL-Pattern to indicate whether the uplink time slot is in front or the downlink time slot is in front. For example, 0 is used to indicate that the downlink time slot is in front, and 1 is used to indicate that the uplink time slot is in front; or, 0 is used to indicate that the uplink time slot is in front, and 1 is used to indicate that the downlink time slot is in front; the default configuration is that the downlink time slot is in front.

[0193] 2. The second indication (nrofDownlinkSlots) is used to indicate the number of downlink time slots in the period (dl-UL-TransmissionPeriodicity) of the entire downlink-uplink DL-UL transmission model.

[0194] 3. The third indication (nrofDownlinkSymbols) is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period.

[0195] If the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern, the third indication is used to indicate the number of downlink symbols in the time slot after the last continuous downlink time slot within the cycle of the entire DL-UL transmission model, for example, it may include symbols that share the same time slot as the downlink time slot and the uplink time slot, and symbols that share the same time slot as the flexible time slot; otherwise, it is used to indicate the number of downlink symbols within the cycle of the entire DL-UL transmission model.

[0196] 4. The fourth indication (nrofUplinkSlots) is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model.

[0197] 5. The fifth indication (nrofUplinkSymbols) is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0198] If the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern, the fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model; otherwise, it is used to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0199] In this embodiment of the present application, to ensure that the downlink initial synchronization process is not affected, the uplink timeslot is less than 5ms if the TDD frame period is 10ms, or less than 10ms if the TDD frame period is 20ms. Specifically, to ensure the presence of SSB bursts in the TDD frame structure, the uplink timeslot is less than 5ms for a 10ms TDD frame structure and less than 10ms for a 20ms TDD frame structure.

[0200] In the embodiment of the present application, the first information may be carried in the SIB. For more explanations of the first information, please refer to the description of the aforementioned method embodiment.

[0201] Optionally, the network device may further send second information to the terminal, wherein the second information is used to determine frame header information of the TDD frame. The second information may be, for example, SSB.

[0202] The network device may be a network device arranged in a satellite network or a high-altitude platform, such as a base station.

[0203] In an embodiment of the present application, the terminal receives the first information sent by the network device and determines the information of the TDD frame based on the first information. Since the first information indicates the TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices with the same frequency are different, the two adjacent network devices with the same frequency can adopt different TDD frame structures, thereby reducing interference between the two adjacent network devices with the same frequency.

[0204] The technical solutions provided in the embodiments of the present application can be applicable to a variety of systems, for example, TDD-related systems, TDD systems based on 5G and subsequent evolution systems, especially 5G-based TDD terrestrial mobile communication systems and satellite communication systems.

[0205] The terminal device involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present application.

[0206] The network device involved in the embodiments of the present application may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be named otherwise. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., and is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0207] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be either Single User MIMO (SU-MIMO) or Multi User MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or Massive-MIMO. It can also use diversity transmission, precoding, or beamforming.

[0208] like Figure 10 As shown, the information indication device for a satellite system according to an embodiment of the present application is applied to a network device, including: a processor 1000 configured to read a program in a memory 1020 and execute the following process:

[0209] Sending first information to the terminal;

[0210] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0211] The transceiver 1010 is configured to receive and send data under the control of the processor 1000 .

[0212] Among them, Figure 10 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1000 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1010 may be a plurality of components, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 when performing operations.

[0213] The processor 1000 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0214] The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 when performing operations.

[0215] Optionally, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot;

[0216] The flexible time slot includes:

[0217] Number of downlink symbols, guard interval, and number of uplink symbols; or

[0218] Number of downlink symbols, guard interval; or

[0219] Guard interval.

[0220] Optionally, the first information includes:

[0221] A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern;

[0222] The second indication is used to indicate the number of downlink time slots in the cycle of the entire DL-UL transmission model;

[0223] A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0224] A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model;

[0225] The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0226] Optionally, the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes:

[0227] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or

[0228] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0229] Optionally, if the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern:

[0230] The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0231] The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

[0232] Optionally, if the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

[0233] Optionally, for two co-frequency adjacent network devices, if the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is located before the uplink time slot, and the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device is located before the downlink time slot:

[0234] In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay;

[0235] The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes:

[0236] a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or

[0237] The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0238] Optionally, the processor 1000 is further configured to read the program and execute the following steps:

[0239] Send second information to the terminal, wherein the second information is used to determine frame header information of the TDD frame, and the second information includes SSB.

[0240] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0241] like Figure 11 As shown, the information processing device for a satellite system according to an embodiment of the present application is applied to a terminal, including: a processor 1100 configured to read a program in a memory 1120 and execute the following processes:

[0242] receiving first information sent by a network device;

[0243] Determine information of the TDD frame according to the first information;

[0244] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0245] The transceiver 1110 is configured to receive and send data under the control of the processor 1100 .

[0246] Among them, Figure 11 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 1100 and memory represented by memory 1120, which are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1110 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1130 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0247] The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 when performing operations.

[0248] The processor 1100 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0249] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0250] Optionally, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot;

[0251] The flexible time slot includes:

[0252] Number of downlink symbols, guard interval, and number of uplink symbols; or

[0253] Number of downlink symbols, guard interval; or

[0254] Guard interval.

[0255] Optionally, the first information includes:

[0256] A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern;

[0257] The second indication is used to indicate the number of downlink time slots in the cycle of the entire DL-UL transmission model;

[0258] A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0259] A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model;

[0260] The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0261] Optionally, the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes:

[0262] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or

[0263] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0264] Optionally, if the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern:

[0265] The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0266] The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

[0267] Optionally, if the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

[0268] Optionally, for two co-frequency adjacent network devices, if the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is located before the uplink time slot, and the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device is located before the downlink time slot:

[0269] In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay;

[0270] The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes:

[0271] a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or

[0272] The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0273] Optionally, the processor 1100 is further configured to read the program and execute the following steps:

[0274] receiving second information sent by the network device, wherein the second information includes SSB;

[0275] determining frame header information of the TDD frame according to the second information;

[0276] The information of the TDD frame is acquired according to the first information and the frame header information.

[0277] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0278] like Figure 12 As shown, the information processing device for a satellite system according to an embodiment of the present application is applied to a terminal, and includes:

[0279] The first receiving unit 1201 is configured to receive first information sent by a network device;

[0280] A first processing unit 1202 is configured to determine TDD frame information according to the first information;

[0281] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0282] Optionally, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot;

[0283] The flexible time slot includes:

[0284] Number of downlink symbols, guard interval, and number of uplink symbols; or

[0285] Number of downlink symbols, guard interval; or

[0286] Guard interval.

[0287] Optionally, the first information includes:

[0288] A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern;

[0289] The second indication is used to indicate the number of downlink time slots in the entire downlink-uplink DL-UL transmission model cycle;

[0290] A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0291] A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model;

[0292] The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0293] Optionally, the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes:

[0294] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or

[0295] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0296] Optionally, if the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern:

[0297] The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0298] The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

[0299] Optionally, if the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

[0300] Optionally, for two co-frequency adjacent network devices, if the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is located before the uplink time slot, and the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device is located before the downlink time slot:

[0301] In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay;

[0302] The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes:

[0303] a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or

[0304] The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0305] Optionally, the first processing unit includes:

[0306] A first receiving subunit is configured to receive second information sent by the network device, wherein the second information includes SSB;

[0307] a first processing subunit, configured to determine frame header information of the TDD frame according to the second information;

[0308] The second processing subunit is configured to obtain information of the TDD frame according to the first information and the frame header information.

[0309] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0310] like Figure 13 As shown, the information indication device for a satellite system according to an embodiment of the present application is applied to a network device, including:

[0311] The first sending unit 1301 is configured to send first information to a terminal;

[0312] The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

[0313] Optionally, the TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot;

[0314] The flexible time slot includes:

[0315] Number of downlink symbols, guard interval, and number of uplink symbols; or

[0316] Number of downlink symbols, guard interval; or

[0317] Guard interval.

[0318] Optionally, the first information includes:

[0319] A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern;

[0320] The second indication is used to indicate the number of downlink time slots in the cycle of the entire DL-UL transmission model;

[0321] A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0322] A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model;

[0323] The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

[0324] Optionally, the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes:

[0325] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or

[0326] The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

[0327] Optionally, if the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern:

[0328] The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period;

[0329] The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

[0330] Optionally, if the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

[0331] Optionally, for two co-frequency adjacent network devices, if the downlink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is located before the uplink time slot, and the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device is located before the downlink time slot:

[0332] In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay;

[0333] The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes:

[0334] a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or

[0335] The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

[0336] Optionally, the device may further include:

[0337] The second sending unit is used to send second information to the terminal, wherein the second information is used to determine the frame header information of the TDD frame, and the second information includes SSB.

[0338] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0339] It should be noted that the division of units in the embodiments of the present application is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0340] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a computer software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0341] An embodiment of the present application further provides a communication device, comprising: a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor implements the steps in the above-described information processing or indication method when executing the program.

[0342] An embodiment of the present application also provides a computer program product, including computer instructions. When the computer instructions are executed by a processor, the various processes of the above-mentioned information processing or indication method embodiments are implemented, and the same technical effects can be achieved. To avoid repetition, they will not be repeated here.

[0343] The embodiment of the present application also provides a processor-readable storage medium, on which a program is stored. When the program is executed by the processor, each process of the above-mentioned information processing or indication method embodiment is implemented, and the same technical effect is achieved. To avoid repetition, it is not described here. The readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0344] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0345] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD-ROM), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0346] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An information processing method for a satellite system, characterized in that: Applied to terminals, including: receiving first information sent by a network device; Determine information of a time division duplex (TDD) frame according to the first information; The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

2. The method according to claim 1, characterized in that The TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot; The flexible time slot includes: Number of downlink symbols, guard interval, and number of uplink symbols; or Number of downlink symbols, guard interval; or Guard interval.

3. The method according to claim 1, characterized in that The first information includes: A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern; The second indication is used to indicate the number of downlink time slots in the entire downlink-uplink DL-UL transmission model cycle; A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period; A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model; The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

4. The method according to claim 3, characterized in that The relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes: The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

5. The method according to claim 3, characterized in that If the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern: The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period; The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

6. The method according to any one of claims 2 to 5, characterized in that: If the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

7. The method according to any one of claims 2 to 5, characterized in that: For two co-frequency adjacent network devices, if the downlink time slot of the first network device is located before the uplink time slot in the TDD uplink and downlink time slot configuration pattern, and the uplink time slot of the second network device is located before the downlink time slot in the TDD uplink and downlink time slot configuration pattern: In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay; The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes: a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

8. The method according to claim 1, characterized in that The determining the information of the time division duplex (TDD) frame according to the first information includes: receiving second information sent by the network device, wherein the second information includes a synchronization signal / physical broadcast channel signal block SSB; determining frame header information of the TDD frame according to the second information; The information of the TDD frame is acquired according to the first information and the frame header information.

9. A satellite system-oriented information indication method, characterized in that: Applicable to network equipment, including: Sending first information to the terminal; The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

10. The method according to claim 9, characterized in that The TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot; The flexible time slot includes: Number of downlink symbols, guard interval, and number of uplink symbols; or Number of downlink symbols, guard interval; or Guard interval.

11. The method according to claim 9, characterized in that The first information includes: A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern; The second indication is used to indicate the number of downlink time slots in the cycle of the entire DL-UL transmission model; A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period; A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model; The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

12. The method according to claim 11, characterized in that The relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes: The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

13. The method according to claim 11, characterized in that If the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern: The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period; The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

14. The method according to any one of claims 10 to 13, characterized in that: If the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

15. The method according to any one of claims 10 to 13, characterized in that: For two co-frequency adjacent network devices, if the downlink time slot of the first network device is located before the uplink time slot in the TDD uplink and downlink time slot configuration pattern, and the uplink time slot of the second network device is located before the downlink time slot in the TDD uplink and downlink time slot configuration pattern: In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay; The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes: a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

16. The method according to claim 9, characterized in that The method further comprises: Send second information to the terminal, wherein the second information is used to determine frame header information of the TDD frame, and the second information includes SSB.

17. An information processing device for a satellite system, characterized in that: Applied to terminals, including memory, transceiver, and processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: receiving first information sent by a network device; Determine information of the TDD frame according to the first information; The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

18. The device according to claim 17, characterized in that The TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot; The flexible time slot includes: Number of downlink symbols, guard interval, and number of uplink symbols; or Number of downlink symbols, guard interval; or Guard interval.

19. The device according to claim 17, characterized in that The first information includes: A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern; The second indication is used to indicate the number of downlink time slots in the cycle of the entire DL-UL transmission model; A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period; A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model; The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

20. The device according to claim 19, characterized in that The relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes: The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

21. The device according to claim 19, characterized in that If the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern: The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period; The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

22. The device according to any one of claims 17 to 21, characterized in that If the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

23. The device according to any one of claims 17 to 21, characterized in that For two co-frequency adjacent network devices, if the downlink time slot of the first network device is located before the uplink time slot in the TDD uplink and downlink time slot configuration pattern, and the uplink time slot of the second network device is located before the downlink time slot in the TDD uplink and downlink time slot configuration pattern: In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay; The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes: a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

24. The device according to claim 17, wherein The processor is further configured to read the computer program in the memory and perform the following operations: receiving second information sent by the network device, wherein the second information includes SSB; determining frame header information of the TDD frame according to the second information; The information of the TDD frame is acquired according to the first information and the frame header information.

25. An information indicating device for a satellite system, characterized in that: Applied to network equipment, including memory, transceivers, and processors: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Sending first information to the terminal; The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

26. The device according to claim 25, characterized in that The TDD uplink and downlink time slot configuration pattern includes: uplink time slot, downlink time slot and flexible time slot; The flexible time slot includes: Number of downlink symbols, guard interval, and number of uplink symbols; or Number of downlink symbols, guard interval; or Guard interval.

27. The device according to claim 25, characterized in that The first information includes: A first indication is used to indicate the relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern; The second indication is used to indicate the number of downlink time slots in the cycle of the entire DL-UL transmission model; A third indication is used to indicate the number of downlink symbols in the entire DL-UL transmission model period, or to indicate the number of downlink symbols in a time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period; A fourth indication is used to indicate the number of uplink time slots in the cycle of the entire DL-UL transmission model; The fifth indication is used to indicate the number of uplink symbols in the time slot before the end of the frame period within the period of the entire DL-UL transmission model, or to indicate the number of uplink symbols in the time slot before the first consecutive uplink time slot within the period of the entire DL-UL transmission model.

28. The device according to claim 27, characterized in that The relative position relationship between the uplink time slot and the downlink time slot in the TDD uplink and downlink time slot configuration pattern includes: The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern; or The position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is located after the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern.

29. The device according to claim 27, characterized in that If the position of the uplink time slot in the TDD uplink and downlink time slot configuration pattern is before the position of the downlink time slot in the TDD uplink and downlink time slot configuration pattern: The third indication is used to indicate the number of downlink symbols in the time slot after the last consecutive downlink time slot in the entire DL-UL transmission model period; The fifth indication is used to indicate the number of uplink symbols in a time slot before the end of a frame period within the period of the entire DL-UL transmission model.

30. The device according to any one of claims 26 to 29, characterized in that If the TDD frame structure period is 10 ms, the time length of the uplink time slot is less than 5 ms, or if the TDD frame structure period is 20 ms, the time length of the uplink time slot is less than 10 ms.

31. The device according to any one of claims 26 to 29, characterized in that For two co-frequency adjacent network devices, if the downlink time slot of the first network device is located before the uplink time slot in the TDD uplink and downlink time slot configuration pattern, and the uplink time slot of the second network device is located before the downlink time slot in the TDD uplink and downlink time slot configuration pattern: In the TDD uplink and downlink time slot configuration pattern of the second network device, the duration of the uplink time slot is less than the inter-satellite link propagation delay, and the time difference between the end time of the actual downlink time slot and the start time of the uplink time slot in the TDD uplink and downlink time slot configuration pattern of the first network device is greater than the inter-satellite link propagation delay; The actual downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device includes: a downlink time slot in the TDD uplink and downlink time slot configuration pattern of the second network device, or The downlink time slots in the TDD uplink and downlink time slot configuration pattern of the second network device and the downlink time slots composed of the downlink symbols of the flexible time slots in the TDD uplink and downlink time slot configuration pattern of the second network device.

32. The device according to claim 25, characterized in that The processor is further configured to read the computer program in the memory and perform the following operations: Send second information to the terminal, wherein the second information is used to determine frame header information of the TDD frame, and the second information includes SSB.

33. An information processing device for a satellite system, characterized in that: Applied to terminals, including: A first receiving unit, configured to receive first information sent by a network device; a first processing unit, configured to determine information of a TDD frame according to the first information; The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

34. An information indicating device for a satellite system, characterized in that: Applicable to network equipment, including: A first sending unit, configured to send first information to a terminal; The first information is used to indicate a TDD uplink and downlink time slot configuration pattern, and the TDD uplink and downlink time slot configuration patterns of two adjacent network devices on the same frequency are different.

35. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the method according to any one of claims 1 to 8, or to execute the method according to any one of claims 9 to 16.

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