Method for determining uplink zone and downlink zone, and apparatus, storage medium and program product

Abstract

The embodiments of the present application relate to the technical field of communications. Provided are a method for determining an uplink zone and a downlink zone, and an apparatus, a storage medium and a program product. The method comprises: acquiring round-trip delay data of a target user terminal group, and zone division data of a time division duplexing (TDD) physical frame (S100), wherein the zone division data comprises a first uplink zone and a first downlink zone; on the basis of the round-trip delay data and an overlapping region formed by means of the first uplink zone and the first downlink zone, determining an overlapping-region type corresponding to the overlapping region (S200); and on the basis of the overlapping-region type, determining a second uplink zone corresponding to the first uplink zone, and a second downlink zone corresponding to the first downlink zone, such that a base station performs data transceiving on the basis of the second uplink zone and the second downlink zone of the TDD physical frame (S300). The method is applied to the apparatus, the storage medium and the program product.

Description

Methods, devices, storage media, and software products for determining uplink and downlink time zones

[0001] Cross-reference to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202410593743.8, filed on May 10, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to, but is not limited to, the field of communication technology, and in particular to a method, apparatus, storage medium, and program product for determining uplink and downlink time zones. Background Technology

[0004] In related technologies, Time Division Duplex (TDD) physical frames of a uniform format are typically used for uplink and downlink signal transmission and reception. Each TDD physical frame uses fixed uplink and downlink time zones for data transmission and reception, and a guard interval is set between the uplink and downlink time zones of each TDD physical frame. In practical applications, to avoid crosstalk and transmission / reception conflicts occurring simultaneously, this guard interval is often set to the maximum round-trip time (RTT) value in the user terminal group. However, this approach results in a low proportion of actual data transmission and reception time in each TDD physical frame for scenarios where the maximum RTT is much larger than the transmission / reception state switching time (such as when the maximum RTT of a satellite is much larger than the transmission / reception state switching time), leading to low channel efficiency. Therefore, how to balance channel efficiency while resolving crosstalk and transmission / reception conflicts is an urgent technical problem to be solved. Summary of the Invention

[0005] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0006] This application provides a method, apparatus, storage medium, and program product for determining uplink and downlink time zones.

[0007] In a first aspect, according to the method for determining uplink and downlink time zones according to embodiments of this application, the method includes: acquiring round-trip delay data of a target user terminal group and time zone division data of a time division duplex (TDD) physical frame, wherein the time zone division data includes a first uplink time zone and a first downlink time zone; based on the overlapping area formed by the first uplink time zone and the first downlink time zone, determining the overlapping area type corresponding to the overlapping area according to the round-trip delay data; and determining a second uplink time zone corresponding to the first uplink time zone and a second downlink time zone corresponding to the first downlink time zone according to the overlapping area type, so that the base station transmits and receives data according to the second uplink time zone and the second downlink time zone of the TDD physical frame.

[0008] In a second aspect, the apparatus for determining the uplink and downlink time zones of a time-division duplex signal according to an embodiment of this application includes: at least one processor and at least one memory, the memory being configured to store at least one program; when at least one of the programs is executed by at least one of the processors, the method described in any one of the first aspects is implemented.

[0009] Thirdly, according to embodiments of the present application, a computer-readable storage medium stores computer-executable instructions for performing the method described in any one of the first aspects.

[0010] Fourthly, a computer program product according to an embodiment of this application includes a computer program or computer instructions, wherein the computer program or computer instructions are stored in a computer-readable storage medium, a processor of a network device reads the computer program or computer instructions from the computer-readable storage medium, and the processor executes the computer program or computer instructions to cause the network device to perform the method as described in any one of the first aspects. Attached Figure Description

[0011] Figure 1a is a schematic diagram of the frame structure of the TDD physical frame of the ground base station in the related technology;

[0012] Figure 1b is a schematic diagram of the frame structure of the TDD physical frame of a low-Earth orbit satellite in the relevant technology;

[0013] Figure 1c is a schematic diagram of the frame structure of the TDD physical frame of a high-orbit satellite in the relevant technology;

[0014] Figure 2 is a schematic diagram of the frame structure of the TDD physical frame of the uplink and downlink time zone determination method provided in this application;

[0015] Figure 3a is a schematic diagram of the device corresponding to the uplink and downlink time zone determination method provided in this application;

[0016] Figure 3b is a schematic diagram of the application of the device corresponding to the method for determining uplink and downlink time zones provided in this application;

[0017] Figure 4 is a flowchart illustrating the method for determining uplink and downlink time zones provided in this application;

[0018] Figure 5a is a schematic diagram of an embodiment of a TDD physical frame corresponding to the non-overlapping region type in the uplink and downlink time zone determination method provided in this application under the same physical frame region interference scenario.

[0019] Figure 5b is a schematic diagram of an embodiment of the TDD physical frame corresponding to the first single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0020] Figure 5c is a schematic diagram of another embodiment of the TDD physical frame corresponding to the first single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0021] Figure 6a is a schematic diagram of an embodiment of a TDD physical frame corresponding to the second single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0022] Figure 6b is a schematic diagram of another embodiment of the TDD physical frame corresponding to the second single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0023] Figure 6c is a schematic diagram of another embodiment of the TDD physical frame corresponding to the second single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0024] Figure 6d is a schematic diagram of another embodiment of the TDD physical frame corresponding to the second single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0025] Figure 6e is a schematic diagram of another embodiment of the TDD physical frame corresponding to the second single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0026] Figure 6f is a schematic diagram of another embodiment of the TDD physical frame corresponding to the second single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0027] Figure 7a is a schematic diagram of an embodiment of a TDD physical frame corresponding to the third single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0028] Figure 7b is a schematic diagram of an embodiment of a TDD physical frame corresponding to the fourth single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0029] Figure 8a is a schematic diagram of an embodiment of a TDD physical frame corresponding to the fifth single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0030] Figure 8b is a schematic diagram of another embodiment of the TDD physical frame corresponding to the fifth single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0031] Figure 8c is a schematic diagram of another embodiment of the TDD physical frame corresponding to the fifth single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0032] Figure 8d is a schematic diagram of another embodiment of the TDD physical frame corresponding to the fifth single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0033] Figure 8e is a schematic diagram of another embodiment of the TDD physical frame corresponding to the sixth single-region overlap type in the same physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0034] Figure 9a is a schematic diagram of an embodiment of the TDD physical frame corresponding to the sixth single-region overlap type in the cross-physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0035] Figure 9b is a schematic diagram of an embodiment of the TDD physical frame corresponding to the fifth single-region overlap type in the cross-physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0036] Figure 9c is a schematic diagram of another embodiment of the TDD physical frame corresponding to the fifth single-region overlap type in the cross-physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application;

[0037] Figure 10a is a schematic diagram of an embodiment of the TDD physical frame corresponding to the first multi-region overlap type in the cross-physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0038] Figure 10b is a schematic diagram of another embodiment of the TDD physical frame corresponding to the first multi-region overlap type in the cross-physical frame interference scenario in the uplink and downlink time zone determination method provided in this application;

[0039] Figure 10c is a schematic diagram of another embodiment of the TDD physical frame corresponding to the first multi-region overlap type in the cross-physical frame interference scenario of the uplink and downlink time zone determination method provided in this application;

[0040] Figure 10d is a schematic diagram of another embodiment of the TDD physical frame corresponding to the second multi-region overlap type in the cross-physical frame interference scenario in the uplink and downlink time zone determination method provided in this application;

[0041] Figure 10e is a schematic diagram of another embodiment of the TDD physical frame corresponding to the second multi-region overlap type in the cross-physical frame interference scenario in the uplink and downlink time zone determination method provided in this application;

[0042] Figure 11a is a schematic diagram of an embodiment of a TDD physical frame corresponding to the third multi-region overlap type in the cross-physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0043] Figure 11b is a schematic diagram of another embodiment of the TDD physical frame corresponding to the third multi-region overlap type in the cross-physical frame interference scenario in the uplink and downlink time zone determination method provided in this application;

[0044] Figure 11c is a schematic diagram of an embodiment of the TDD physical frame corresponding to the fourth multi-region overlap type in the cross-physical frame region interference scenario in the uplink and downlink time zone determination method provided in this application.

[0045] Figure 11d is a schematic diagram of another embodiment of the TDD physical frame corresponding to the fourth multi-region overlap type in the cross-physical frame interference scenario in the uplink and downlink time zone determination method provided in this application;

[0046] Figure 12 is a schematic diagram of the hardware structure of the device corresponding to the uplink and downlink time zone determination method provided in this application. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0048] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0049] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0050] The following are the Chinese and English definitions of the terms used in the embodiments of this application:

[0051] In related technologies, Time Division Duplex (TDD) physical frames with a unified format are typically used for uplink and downlink signal transmission and reception, as shown in Figure 1a. Each TDD physical frame of a ground base station uses fixed uplink and downlink time zones for data transmission and reception, and a gap (GAP) is set between the uplink and downlink time zones of each TDD physical frame. To avoid crosstalk and transmission / reception conflicts at the same time, this GAP is often set to the maximum round-trip delay value in the user terminal group. During communication, as shown in Figure 1a, the entire uplink time zone is used for uplink data reception, and the entire downlink time zone is used for downlink data transmission. However, in scenarios where the maximum round-trip delay value is much greater than the transmission / reception state switching time (such as when the maximum round-trip delay value of a satellite is much greater than the transmission / reception state switching time), using the frame structure of the TDD physical frame described in Figure 1a for data transmission and reception results in a low proportion of the actual time used for data transmission and reception in each TDD physical frame, leading to low channel efficiency. Improving channel efficiency of the frame structure while keeping the GAP duration constant requires increasing the frame length. Increasing the frame length leads to problems such as poor CSI / HARQ feedback timeliness, high terminal buffer requirements, and large air interface latency jitter. Furthermore, the TDD physical frames used for satellites in related technologies suffer from low channel efficiency or poor versatility. As shown in Figure 1b, in Iridium TDD frames with a frame length of 90ms, each TDD physical frame is time-division multiplexed for communication by 4 UEs. For a single UE frame, the total GAP duration is much greater than the maximum RTD in the coverage area. Therefore, the channel efficiency of each UE in this way is no more than 25%. As shown in Figure 1c, in high-orbit satellite TDD physical frames, the DL and UL corresponding to the same UE belong to different TDD physical frames, or multiple frames are inserted between the two TDD physical frames to which the DL and UL belong. This method is more demanding on frame length conditions and has poor flexibility, lacking versatility. Therefore, how to balance channel efficiency while solving transmit / receive crosstalk and transmit / receive conflicts is an urgent technical problem to be solved. Based on this, embodiments of this application provide a method, apparatus, storage medium, and program product for determining uplink and downlink time zones, which can solve the problems of transmit / receive crosstalk and transmit / receive conflicts while taking into account channel efficiency.

[0052] It should be noted that the uplink and downlink time zone determination method, apparatus, storage medium, and program product in this application embodiment are applicable to the TDD physical frame structure shown in Figure 2. As shown in Figure 2, the duration of the first uplink time zone in the TDD physical frame is fixed, and the duration of the first downlink time zone is also fixed. The total duration of the TDD physical frame is determined. A first handover duration is reserved between the first downlink time zone and the first uplink time zone in the same TDD physical frame, and a second handover duration is reserved after the first uplink time zone in the TDD physical frame. The first handover duration is used for the base station to switch from downlink transmission state to uplink reception state, and it is necessary to ensure that there is no data transmission or reception on the base station side during the first handover duration. The second handover duration is used for the base station to switch from uplink reception state to downlink transmission state, and it is necessary to ensure that there is no data transmission or reception on the base station side during the second handover duration. It should be noted that the base station in this application can be a terrestrial base station or a satellite or other device that can connect terminal devices to the network. Therefore, this application embodiment does not limit the specific type of base station.

[0053] As shown in Figure 3a, this application embodiment provides a communication device that executes the uplink and downlink time zone determination method of this application embodiment. As shown in Figure 3a, the communication device includes a communication module 410 and a determination module 420, wherein the communication module 410 is configured to transmit uplink signals in a second uplink time zone and is configured to transmit downlink signals in a second downlink time zone. The determination module 420 is configured to acquire round-trip delay data of a target user terminal group and time zone division data of a time division duplex (TDD) physical frame, wherein the time zone division data includes a first uplink time zone and a first downlink time zone; based on the overlapping area formed by the first uplink time zone and the first downlink time zone, determine the overlapping area type corresponding to the overlapping area according to the round-trip delay data; and determine the second uplink time zone corresponding to the first uplink time zone and the second downlink time zone corresponding to the first downlink time zone according to the overlapping area type.

[0054] As shown in Figure 3b, this embodiment of the application provides a determining device 500. The determining device 500 acquires basic parameters of a base station 600 (including round-trip time delay data and time delay partitioning data), and determines and outputs the second uplink time zone and the second downlink time zone based on a lookup table using the basic parameters. The lookup table corresponds to the uplink and downlink time zone determination method of this embodiment. The base station 600 performs time zone configuration based on the second uplink and second downlink time zones output by the determining device 500, and transmits uplink signals in the second uplink time zone and downlink signals in the second downlink time zone of each TDD physical frame.

[0055] Therefore, based on the two fundamental constraints of no transmit / receive conflicts on the base station side and no transmit / receive crosstalk on the UE side, the TDD frame structure can be adaptively derived under the constraints of given TDD frame length, uplink / downlink ratio, and round-trip delay data. Compared with the unified TDD frame structure used by traditional terrestrial base stations in Figure 1a, high channel efficiency can be achieved without increasing the frame length; the scheduling period is shorter and the channel efficiency is higher than that of the Iridium TDD frame in Figure 1b; and compared with the high-orbit satellite frame structure in Figure 1c, it is not constrained by a specific frame length and is more versatile.

[0056] Referring to Figure 4, the method for determining the uplink and downlink time zones of a time-division duplex signal according to an embodiment of this application includes:

[0057] Step S100: Obtain the round-trip delay data of the target user terminal group and the time zone division data of the time division duplex (TDD) physical frame, wherein the time zone division data includes the first uplink time zone and the first downlink time zone.

[0058] Step S200: Based on the overlapping area formed by the first uplink time zone and the first downlink time zone, determine the type of overlapping area corresponding to the overlapping area according to the round-trip delay data;

[0059] Step S300: Based on the overlapping area type, determine the second uplink time zone corresponding to the first uplink time zone and the second downlink time zone corresponding to the first downlink time zone, so that the base station can transmit and receive data according to the second uplink time zone and the second downlink time zone of the TDD physical frame.

[0060] Therefore, by using the overlapping area formed by the first uplink time zone and the first downlink time zone, as well as the round-trip delay data, the overlapping area type of the interference zone formed by the target user terminal group in the overlapping area can be determined. This allows for the determination of the second uplink time zone and the second downlink time zone based on different overlapping area types, enabling adaptive allocation of the time zones corresponding to the transmitted and received data in the TDD physical frame. In this case, sufficient protection time interval is reserved between the second uplink time zone and the second downlink time zone for the transition from downlink transmission state to uplink reception state, thus resolving the problems of transmit / receive crosstalk and transmit / receive conflicts. Compared with related technologies, the embodiments of this application adaptively configure the length of the protection interval based on the round-trip delay data, without needing to fix the protection interval to the maximum round-trip delay value. Therefore, it can solve transmit / receive crosstalk and transmit / receive conflicts while taking channel efficiency into account.

[0061] It should be noted that the target user terminal group can be a collection of user terminals within the coverage area of ​​one beam or a collection of user terminals within the coverage area of ​​multiple beams. Therefore, this application embodiment does not limit the composition of the target user terminals. The target user terminal group is a collection of user terminals communicating using the TDD physical frame structure determined by the determination method of this application on the base station side.

[0062] It should be noted that the round-trip time (RTD) data includes at least the maximum RTD value and the minimum RTD value. As shown in Figure 2, a TDD physical frame consists of a first uplink time zone, a first downlink time zone, the time zone corresponding to the first handover duration, and the time zone corresponding to the second handover duration. The first handover duration is the handover duration from downlink transmission state to uplink reception state on the base station side; the second handover duration is the handover duration from uplink reception state to downlink transmission state on the base station side. This application embodiment does not limit the specific settings of the first and second handover durations.

[0063] It should be noted that the overlapping area refers to the region where the uplink signal coverage of the first uplink time zone and the downlink signal coverage of the first downlink time zone overlap. When a user terminal from the target user terminal group is present in this overlapping area, an interference zone will be formed within the overlapping area. User terminals within the interference zone will experience transmit / receive crosstalk and / or transmit / receive conflicts. As shown in Figure 5a, when the first uplink time zone is entirely used for uplink signal transmission and the first downlink time zone is entirely used for downlink signal transmission, the signal coverage of the first uplink time zone will form an overlapping area enclosed by C1, C2, C3, and C4 with the signal coverage of the first downlink time zone.

[0064] It should be noted that the overlapping area type is used to characterize the type of interference generated between target user terminal groups at different locations and with different numbers of target user terminal groups and the overlapping area. Round-trip delay data determines whether the target user terminal group and the overlapping area overlap, and the area of ​​overlap. Therefore, the corresponding overlapping area type can be determined based on the round-trip delay data. The overlapping area type corresponds one-to-one with the combination of the second uplink time zone and the second downlink time zone. Therefore, the second uplink time zone and the second downlink time zone can be determined based on the overlapping area type.

[0065] It should be noted that, for step S200, the maximum and minimum round-trip time delay values ​​in the round-trip time delay data can be used to determine the location coverage of the target user terminal group. Therefore, the overlapping area type can be determined based on the maximum and minimum round-trip time delay values ​​in the round-trip time delay data.

[0066] It should be noted that steps S200 and S300 can be implemented by looking up a table. In some other embodiments, steps S200 and S300 can be calculated in real time. This application does not limit these steps, and those skilled in the art can selectively set them according to actual needs.

[0067] It should be noted that the method for determining the uplink and downlink time zones of the time division duplex signal in this application can be applied to a base station or to an independent determining device. When applied to a determining device, the base station can be configured based on the second uplink and second downlink time zones output by the determining device.

[0068] It should be noted that in some embodiments, step S300 can directly obtain a specific numerical range of the second uplink time zone and the second downlink time zone based on the overlapping region type. In other embodiments, step S300 can obtain the dynamic value range of each of the second uplink time zone and the second downlink time zone based on the overlapping region type. The dynamic value range is determined by the segmentation point set in the interference region corresponding to the overlapping region type. Therefore, this application embodiment does not limit the specific form of the second uplink time zone and the second downlink time zone output by the overlapping region type.

[0069] Understandably, the time zone division data also includes the TDD frame length, and the round-trip delay data includes the maximum round-trip delay value and the minimum round-trip delay value. In step S200, the overlapping area type corresponding to the overlapping area is determined based on the round-trip delay data, including: determining the first TDD frame number based on the maximum round-trip delay value and the TDD frame length; determining the second TDD frame number based on the minimum round-trip delay value and the TDD frame length; determining the physical frame interference type based on the first TDD frame number and the second TDD frame number; and determining the overlapping area type corresponding to the overlapping area based on the maximum round-trip delay value, the minimum round-trip delay value, and the physical frame interference type.

[0070] It should be noted that the maximum round-trip time (RTT) is the total delay experienced by the base station from transmitting a downlink signal to the farthest user terminal in the target user terminal group and receiving an uplink signal acknowledging the signal from the farthest user terminal; the first TDD frame number represents the number of TDD physical frames occupied by the maximum RTT. The minimum RTT is the total delay experienced by the base station from transmitting a downlink signal to the nearest user terminal in the target user terminal group and receiving an uplink signal acknowledging the signal from the nearest user terminal; the second TDD frame number represents the number of TDD physical frames occupied by the minimum RTT.

[0071] It should be noted that under different physical frame interference types, the interference zones formed by the user terminal groups corresponding to the maximum and minimum round-trip delay values ​​and the overlapping areas are different. Therefore, by first determining the physical frame interference type based on the maximum and minimum round-trip delay values, and then matching the interference situation under the determined physical frame interference type one by one, the interference zones can be classified and processed, thereby improving the efficiency of determining the overlapping area type.

[0072] It should be noted that the number of physical frame interference types can be selectively set according to actual needs. For example, it can be set to two types: interference within the same physical frame area and interference across physical frame areas, to classify and process the cases where the RTDs of the target user terminal group are all in the same TDD physical frame area and the cases where the RTDs of the target user terminal group span two adjacent TDD physical frame areas.

[0073] Understandably, the time zone division data also includes a first handover duration, which is the handover duration from downlink transmission state to uplink reception state on the base station side; the first TDD frame number is determined based on the maximum round-trip delay value and the TDD frame length, including: dividing the difference between the maximum round-trip delay value and the first handover duration by the TDD frame length and rounding down to obtain the first TDD frame number; the second TDD frame number is determined based on the minimum round-trip delay value and the TDD frame length, including: dividing the difference between the minimum round-trip delay value and the first handover duration by the TDD frame length and rounding down to obtain the second TDD frame number.

[0074] It should be noted that by dividing the difference between the round-trip delay value and the first handover duration by the TDD frame length and then rounding, it can be further ensured that the first handover duration is reserved in each TDD frame for switching the transmit and receive states, so as to ensure that there is no data transmission or reception on the base station side during the first handover duration.

[0075] For example, with the maximum round-trip time delay value as RTD max The minimum round-trip time is RTD. min The first switching time is T. D / U TDD frame length is T F For example, the first TDD frame number is The second TDD frame number is Therefore, when If the UE's maximum round-trip time and minimum round-trip time are both in the same physical frame area, it indicates interference within the same physical frame area. This indicates cross-physical frame interference.

[0076] Based on the first TDD frame number and the second TDD frame number, the physical frame interference type is determined, including: when the first TDD frame number is equal to the second TDD frame number, the physical frame interference type is determined to be interference within the same physical frame area; when the first TDD frame number differs from the second TDD frame number by 1, the physical frame interference type is determined to be interference across physical frame areas.

[0077] It should be noted that in some embodiments, only T DL +T UL >2(RTD) max +RTD min In the scenario where the overlap region type is determined based on step S200, the first TDD frame number is equal to the second TDD frame number or the difference between the first TDD frame number and the second TDD frame number is 1. For the first uplink time zone, the first downlink time zone, the maximum round-trip time delay value, and the minimum round-trip time delay value, the TDD frame number does not meet the condition. DL +T UL >2(RTD) max +RTD min In scenarios where the second uplink and second downlink time zones are determined using other methods, the following methods may be employed.

[0078] For example, when This indicates interference with the same physical frame area. If the UE's maximum round-trip time and minimum round-trip time fall within two adjacent physical frame regions, it indicates cross-physical frame region interference.

[0079] Understandably, the overlapping area type corresponding to the overlapping area is determined based on the maximum round-trip time (RTT) value, the minimum RTT value, and the physical frame interference type. This includes: taking the remainder of the difference between the maximum RTT value and the first handover duration with the TDD frame length to obtain the first delay value; taking the remainder of the difference between the minimum RTT value and the first handover duration with the TDD frame length to obtain the second delay value; when the physical frame interference type is same-physical-frame interference, the first overlapping condition of the target user terminal group is obtained based on the first delay value and the overlapping area of ​​the same TDD physical frame; and the second overlapping condition of the target user terminal group is obtained based on the second delay value and the overlapping area of ​​the same TDD physical frame; and the overlapping area type of the overlapping area is determined based on the first and second overlapping conditions.

[0080] It should be noted that, based on the first delay value, the positional relationship between the user terminal farthest from the base station in the target user terminal group and the overlapping area can be determined, thus obtaining the first overlapping condition. Based on the second delay value, the positional relationship between the user terminal closest to the base station in the target user terminal group and the overlapping area can be determined, thus obtaining the second overlapping condition. At this point, based on the first and second overlapping conditions, it can be determined whether an interference zone is formed in the overlapping area and the type of overlapping area corresponding to the interference zone can be determined. After determining the type of overlapping area, the second downlink time zone and the second uplink time zone can be obtained based on the segmentation points in the interference zone.

[0081] It should be noted that both the maximum and minimum round-trip time delay values ​​include the handover time on the UE side. Therefore, when dividing uplink and downlink time zones based on round-trip time delay data, the handover time on the UE side can be guaranteed.

[0082] Therefore, by combining and classifying different first and second overlap conditions within the same TDD physical frame to obtain different overlap region types, the determination efficiency of the second uplink time zone and the second downlink time zone can be improved.

[0083] It should be noted that in some embodiments, for interference in the same physical frame area, the situation of the interference area formed by the user terminal at the near end and the overlapping area is more complicated. Therefore, a first overlapping condition is first determined, and a second overlapping condition is matched under the first overlapping condition to obtain the overlapping area type that satisfies the first overlapping condition and the second overlapping condition. Since the first overlapping condition can limit the matching range of the second overlapping condition, the efficiency of determining the time zone can be further improved.

[0084] Understandably, determining the overlapping area type corresponding to the overlapping area based on the maximum round-trip time delay value, the minimum round-trip time delay value, and the physical frame interference type also includes: when the physical frame interference type is cross-physical frame area interference, obtaining the first overlapping condition of the user terminal group based on the first delay value and the overlapping area of ​​two adjacent TDD physical frames; and obtaining the second overlapping condition of the user terminal group based on the second delay value and the overlapping area of ​​two adjacent TDD physical frames.

[0085] It should be noted that the first overlap condition characterizes the positional relationship between the user terminal farthest from the base station in the target user terminal group and the overlap area; the second overlap condition characterizes the positional relationship between the user terminal closest to the base station in the target user terminal group and the overlap area. It should also be noted that for cross-physical frame area interference, the positional relationship between the farthest user terminal and the overlap area makes the formation of the interference zone more complex. Therefore, in some embodiments, the second overlap condition is determined first, and then the first overlap condition is matched against the second overlap condition to obtain the overlap area type. Since the second overlap condition can narrow the range of matching the first overlap condition, the efficiency of time zone determination can be further improved.

[0086] It should be noted that the second time delay value T2 in Figures 5a to 11d of the attached diagram is mod(RTD). min -T D / U ,T F The first delay value T1 is mod(RTD). max -T D / U ,T F ).

[0087] Understandably, for In the scenario described, based on the first and second overlap conditions, the overlap region type is determined, including: when the second overlap condition indicates that the second delay value is greater than or equal to the total duration of the time zone, the overlap region type is determined to be a non-overlapping region type; wherein, the non-overlapping region type indicates that the second downlink time zone is the same as the first downlink time zone, and the second uplink time zone is the same as the first uplink time zone; the total duration of the time zone is the sum of the durations of the first uplink time zone and the first downlink time zone; when the second overlap condition indicates that the second delay value is less than the total duration of the time zone and the second delay value is greater than or equal to the maximum time zone value, the overlap region type is determined to be a first single-region overlap type; wherein, the maximum time zone value is the larger duration of the first downlink time zone and the first uplink time zone; the first single-region overlap type indicates that a near-end split point needs to be set in the near-end interference zone, and the first duration t of the distance between the near-end split point and the starting point of the near-end interference zone satisfies 0 ≤ t ≤ T. DL +T UL -T2; where T DL T represents the duration of the first downlink time zone. UL T1 represents the duration of the first uplink time zone, and T2 represents the second delay value.

[0088] It should be noted that since the second overlap condition represents the positional relationship between the nearest user terminal in the target user terminal group and the overlap area, when the second delay value is greater than or equal to the total duration of the time zone, the first delay value must also satisfy the condition that the first delay value is greater than or equal to the total duration of the time zone. When the second delay value is less than the total duration of the time zone and the second delay value is greater than or equal to the maximum duration of the time zone, the first delay value must also satisfy the condition that the first delay value is less than the total duration of the time zone and the first delay value is greater than or equal to the maximum duration of the time zone, or the first delay value is greater than or equal to the total duration of the time zone.

[0089] It should be noted that the near-end interference zone is the area where the user terminal closest to the base station in the target user terminal group (i.e., the smallest RTD user) overlaps with the overlapping area.

[0090] It should be noted that the near-end segmentation point represents the location point corresponding to the start time of the second downlink time zone and the end time of the second uplink time zone in the near-end interference zone.

[0091] For example, when the first overlap condition is T DL +T UL ≤mod(RTD max -T D / U T F The second overlap condition is T. DL +T UL ≤mod(RTD min -T D / U T F As shown in Figure 5a, when the target user terminal group and the overlapping areas formed by C1C2C3C4 are non-overlapping, the first uplink time zone can be used entirely for transmitting uplink signals, and the first downlink time zone can be used entirely for transmitting downlink signals. In this case, the overlapping area type is a non-overlapping area type. The communication range of the second downlink time zone is [nT]. F ,nT F +T DL The duration of the second downlink time zone is T. DL The communication range of the second uplink time zone is [nT] F +T DL +T D / U ,nT F +T DL +T D / U +T UL The duration of the second uplink time zone is T. UL Channel efficiency (T) UL +T DL ) / T F .

[0092] For example, when the first overlap condition is T DL +T UL ≤mod(RTDmax -T D / U T F The second overlap condition is max(T). DL ,T UL )≤mod(RTD min -T D / U T F ) < T DL +T UL The interference area formed by the target user terminal group and the overlapping area is the shaded part shown in Figure 5b. The near-end interference area is the top edge of the shaded area, and the overlapping area type is the first single-area overlapping type. At this point, a near-end segmentation point A needs to be set in the near-end interference area, and the starting point of the near-end interference area is marked as B. From Figure 5b, it can be seen that the first time interval t between A and B satisfies 0 ≤ t ≤ T. DL +T UL -T2; and the starting point of the near-end interference zone corresponds to the starting time of the first downlink time zone, therefore the communication range of the second downlink time zone on the base station side is [nT F +t,nT F +T DL The duration T of the second downlink time zone on the base station side. DL -t; The communication range of the second uplink time zone on the base station side is [nT] F +T DL +T D / U ,nT F +T D / U +mod(RTD min -T D / U ,T F )+t], the duration of the second uplink time zone mod(RTD) min -T D / U ,T F )-T DL +t. Channel efficiency mod(RTD) min -T D / U ,T F ) / T F At this point, as shown in Figure 5b, the dotted line passing through point A represents the coverage area of ​​the downlink signal in the second downlink time zone at the start of the current time and the coverage area of ​​the uplink signal in the second uplink time zone at the end of the current time. The overlapping area formed by the second uplink and second downlink time zones only overlaps with the target user terminal group at point A. Since the round-trip delay includes the D / U handover time on the UE side, there is no transmit / receive conflict on the UE side at point A. Therefore, there are no transmit / receive conflicts or crosstalk issues for user terminals within the second uplink and second downlink time zones.

[0093] For example, when the first overlap condition is max(T) DL ,TUL )≤mod(RTD max -T D / U T F ) < T DL +T UL The second overlap condition is max(T) DL ,T UL )≤mod(RTD min -T D / U T F ) < T DL +T UL As shown in Figure 5c, the target user terminal group and the overlapping area form the interference area shown in the shaded region of Figure 5c. The near-end interference area is the top edge of the shaded region, and the overlapping area type is the first single-region overlapping type. Therefore, a near-end segmentation point A needs to be set in the near-end interference area in Figure 5c, and the starting point of the near-end interference area is marked as B. Then, the first duration t of the interval between A and B satisfies 0 ≤ t ≤ T. DL +T UL -T2; and as shown in Figure 5c, the starting point of the near-end interference zone corresponds to the starting time of the first downlink time zone. Therefore, the communication range of the second downlink time zone on the base station side is Duration T of the second downlink time zone on the base station side DL -t; The communication range of the second uplink time zone on the base station side is [nT] F +T DL +T D / U ,nT F +T D / U +mod(RTD min -T D / U ,T F The duration of the second uplink time zone is mod(RTD) + t], where mod(RTD) is the length of the uplink time zone. min -T D / U ,T F )-T DL +t. Channel efficiency mod(RTD) min -T D / U ,T F ) / T F .

[0094] It should be noted that when set to a table lookup, in some embodiments, the range of values ​​for the split point will also be output; for example, with 5C, the split point value 0≤t≤T can be obtained. DL +T UL -T2; The communication range of the second downlink time zone is [nT] F +t,nT F +T DL The communication range of the second uplink time zone is [nT]. F +T DL +TD / U ,nT F +T D / U +mod(RTD min -T D / U ,T F ()+t]. When the second uplink time zone and the second downlink time zone are calculated in real time, the corresponding time zone calculation logic is set according to each overlapping area type to obtain the communication range of the corresponding time zone.

[0095] Understandably, for In this scenario, based on the first and second overlap conditions, the overlap region type is determined. This further includes: when the first and second overlap conditions meet the second single-region overlap requirement, the overlap region type is determined to be the second single-region overlap type. The second single-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region, and the first time t between the near-end segmentation point and the starting point of the near-end interference region satisfies 0 ≤ t ≤ min(T). DL ,T UL The second single-area overlap requirement must satisfy at least one of the following: the first overlap condition indicates that the first delay value is greater than or equal to the maximum value of the time zone, and the second overlap condition indicates that the second delay value is less than the maximum value of the time zone and the second delay value is greater than or equal to the minimum value of the time zone; wherein, the minimum value of the time zone is the minimum time zone duration between the first downlink time zone and the first uplink time zone; the first overlap condition indicates that the first delay value is less than the maximum value of the time zone and the first delay value is greater than or equal to the minimum value of the time zone, and the second overlap condition indicates that the second delay value is less than the maximum value of the time zone and the first delay value is greater than or equal to the minimum value of the time zone; the total duration of the time zone is less than or equal to the sum of the first delay value and the second delay value.

[0096] It should be noted that the starting point of the near-end interference zone corresponding to the second single-region overlap type is related to the duration of the first uplink time zone and the first downlink time zone. When the duration of the first downlink time zone is greater than or equal to the duration of the first uplink time zone, the starting point of the near-end interference zone is nT. F +T DL -mod(RTD min -T D / U ,T F Therefore, when T DL With T UL When the values ​​are different, it is necessary to refer to T. DL With T UL The first duration t determines the second uplink time zone and the second downlink time zone.

[0097] For example, the first overlap condition is T DL +T UL ≤mod(RTD max -T D / U T F The second overlap condition is min(T); DL ,T UL)≤mod(RTD min -T D / U T F )≤max(T DL ,T UL The overlapping area and the target user terminal group form an interference area, as shown by the shaded areas in Figures 6a and 6b. The near-end interference area corresponds to the top edge of the shaded area in Figures 6a and 6b. At this time, the overlapping area type is the second single-area overlapping type. Assuming the near-end segmentation point is set to A and the starting point of the near-end interference area is marked as B, then: For example, as shown in Figure 6a, when T DL ≥T UL Then the first time interval between A and B satisfies 0 ≤ t ≤ T. UL Then the communication range of the second downlink time zone on the base station side is [nT] F +T DL -mod(RTD min -T D / U ,T F )+t,nT F +T DL The duration of the second downlink time zone is mod(RTD). min -T D / U ,T F )-t; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U ,nT F +T DL +T D / U +t], where the duration of the second uplink time zone is t. The channel efficiency is mod(RTD) min -T D / U ,T F ) / T F .

[0098] For example, as shown in Figure 6b, when T DL <T UL Then the first time interval between A and B satisfies 0 ≤ t ≤ T. DL The communication range of the second downlink time zone on the base station side is [nT] F +t,nT F +T DL The duration of the second downlink time zone is T. DL -t; The communication range of the second uplink time zone on the base station side is [nT] F +T DL +T D / U ,nT F +T D / U +mod(RTD min -T D / U ,TF )+t], the duration of the second uplink time zone mod(RTD) min -T D / U ,T F )-T DL +t. Channel efficiency mod(RTD) min -T D / U ,T F ) / T F .

[0099] For example, the first overlap condition is max(T) DL ,T UL )≤mod(RTD max -T D / U T F ) < T DL +T UL The second overlap condition is min(T) DL ,T UL )≤mod(RTD min -T D / U T F ) < max(T DL ,T UL At this time, the overlapping region type is the second single-region overlapping type. Assuming the near-end segmentation point is set to A and the starting point of the near-end interference region is marked as B, it is shown in Figure 6c and Figure 6d.

[0100] For example, as shown in Figure 6c, when T DL ≥T UL The first time interval between A and B satisfies 0 ≤ t ≤ T. UL The communication range of the second downlink time zone on the base station side is [nT]. F +T DL -mod(RTD min -T D / U ,T F )+t,nT F +T DL The duration of the second downlink time zone is mod(RTD). min -T D / U ,T F )-t; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U ,nT F +T DL +T D / U +t], where the duration of the second uplink time zone is t. The channel efficiency is mod(RTD) min -T D / U ,T F ) / T F .

[0101] For example, as shown in Figure 6d, when T DL <T UL Then the first time interval between A and B satisfies 0 ≤ t ≤ T. DL The communication range of the second downlink time zone on the base station side is [nT]. F +t,nT F +T DL The duration of the second downlink time zone is T. DL -t; The communication range of the second uplink time zone on the base station side is [nT] F +T DL +T D / U ,nT F +T D / U +mod(RTD min -T D / U ,T F )+t], the duration of the second uplink time zone mod(RTD) min -T D / U ,T F )-T DL +t. Channel efficiency mod(RTD) min -T D / U ,T F ) / T F .

[0102] Therefore, as shown in Figures 6a to 6d, the first overlap condition indicates that the first time delay value is greater than or equal to the maximum value of the time zone, and the second overlap condition indicates the interference situation when the second time delay value is less than the maximum value of the time zone and the second time delay value is greater than or equal to the minimum value of the time zone.

[0103] For example, as shown in Figures 6e and 6f, the first overlap condition is min(T) DL ,T UL )≤mod(RTD max -T D / U T F ) < max(T DL ,T UL The corresponding overlapping region type is the second single-region overlapping type. Assuming the near-end segmentation point is set to A and the starting point of the near-end interference region is marked as B, then it is shown in Figure 6e and Figure 6f.

[0104] As shown in Figure 6e, the second overlap condition is min(T) DL ,T UL )≤mod(RTD min -T D / U T F ) < max(T DL ,T UL And T DL-mod(RTD max -T D / U T F )≤mod(RTD min -T D / U T F )-T UL When T DL ≥T UL Then the first time interval between A and B satisfies 0 ≤ t ≤ T. UL The communication range of the second downlink time zone on the base station side is [nT]. F +T DL -mod(RTD min -T D / U ,T F )+t,nT F +T DL The duration of the second downlink time zone is mod(RTD). min -T D / U ,T F )-t; Communication range of the second uplink time zone on the base station side [nT] F +T DL +T D / U ,nT F +T DL +T D / U +t], where the duration of the second uplink time zone is t. Channel efficiency mod(RTD) min -T D / U ,T F ) / T F .

[0105] As shown in Figure 6f, the second overlap condition is min(T) DL ,T UL )≤mod(RTD min -T D / U T F ) < max(T DL ,T UL And T UL -mod(RTD max -T D / U T F )≤mod(RTD min -T D / U T F )-T DL When T DL <T UL Then the first duration of the interval between A and B satisfies 0 ≤ t ≤ T. DL The communication range of the second downlink time zone on the base station side is [nT]. F +t,nT F +T DLThe duration of the second downlink time zone is T. DL -t; The communication range of the second uplink time zone on the base station side is [nT] F +T DL +T D / U ,nT F +T D / U +mod(RTD min -T D / U ,T F )+t], the duration of the second uplink time zone mod(RTD) min -T D / U ,T F )-T DL +t. Channel efficiency mod(RTD) min -T D / U ,T F ) / T F .

[0106] Therefore, as shown in Figures 6a to 6f, based on the first and second overlap conditions, the start time of downlink signal interference (i.e., the time corresponding to B in the figure) and the end time of uplink signal interference can be determined, thereby the communication range of the second uplink time zone and the second downlink time zone can be obtained based on the first duration.

[0107] Understandably, for In the scenario described, based on the first and second overlap conditions, the overlap region type is determined, further including: when the first and second overlap conditions meet the third single-region overlap requirement, the overlap region type is determined to be a third single-region overlap type. The third single-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region, and the first time interval t between the near-end segmentation point and the starting point of the near-end interference region satisfies 0 ≤ t ≤ T2; when the first and second overlap conditions meet the fourth single-region overlap requirement, the overlap region type is determined to be a fourth single-region overlap type. The fourth single-region overlap type indicates that a far-end segmentation point needs to be set in the far-end interference region, and the first time interval t between the far-end segmentation point and the starting point of the far-end interference region satisfies 0 ≤ t ≤ T2. DL +T UL -T1; T1 represents the first delay value; the third single-area overlap requirements include: the first overlap condition means that the first delay value is less than the total duration of the time zone and the first delay value is greater than or equal to the maximum value of the time zone; the second overlap condition means that the second delay value is less than the minimum value of the time zone; the total duration of the time zone is less than or equal to the sum of the first delay value and the second delay value.

[0108] The fourth single-area overlap requirement includes: the first overlap condition means that the first delay value is less than the total duration of the time zone and the first delay value is greater than or equal to the maximum value of the time zone; the second overlap condition means that the second delay value is less than the minimum value of the time zone; and the sum of the first delay value and the second delay value is less than or equal to the total duration of the time zone.

[0109] It should be noted that the remote interference zone is the interference zone formed by the user terminal furthest from the base station in the target user terminal group and the overlapping area.

[0110] It should be noted that the far-end interference zone refers to the area formed by the overlap between the user terminal farthest from the base station in the target user terminal group (i.e., the largest RTD user) and the overlapping area, for example, the lower top edge of the shaded area shown in Figures 7b to 9c.

[0111] It should be noted that the remote segmentation point represents the location point corresponding to the end time of the second downlink time zone and the start time of the second uplink time zone in the remote interference zone.

[0112] For example, as shown in Figure 7a, the first overlap condition is max(T) DL ,T UL )≤mod(RTD max -T D / U T F ) < T DL +T UL The second overlap condition is 0 ≤ mod(RTD). min -T D / U T F )<min(T DL ,T UL And mod(RTD) min -T D / U T F )≥T DL +T UL -mod(RTD min -T D / U T F As shown in Figure 7a, the shaded area becomes the interference region; the near-end interference region is the upper edge of the shaded area, and the overlapping region type is the third single-region overlapping type. The starting point of the near-end interference region is marked as B, and the near-end segmentation point is marked as A. As shown in Figure 7a, the first time interval between A and B is 0≤t≤mod(RTD). min -T D / U ,T F The communication range of the second downlink time zone on the base station side is [nT]. F +T DL -mod(RTD min -T D / U ,T F )+t,nT F +T DL ], Duration mod (RTD) min -T D / U ,T F )-t; The communication range of the second uplink time zone on the base station side is [nT F +TDL +T D / U ,nT F +T DL +T D / U +t], duration t. Channel efficiency mod(RTD) min -T D / U ,T F ) / T F .

[0113] For example, as shown in Figure 7b, the first overlap condition is max(T) DL ,T UL )≤mod(RTD max -T D / U T F ) < T DL +T UL The second overlap condition is 0 ≤ mod(RTD). min -T D / U T F )<min(T DL ,T UL And mod(RTD) min -T D / U T F )≤T DL +T UL -mod(RTD max -T D / U T F The shadowed area shown in Figure 7b forms the interference region; the far-end interference region is the lower top edge of the shadowed area, and the overlapping region type is the fourth single-region overlapping type. The starting point of the far-end interference region is labeled B, and the far-end segmentation point is labeled A. The first time interval between A and B satisfies 0 ≤ t ≤ T. DL +T UL -mod(RTD max -T D / U ,T F The communication range of the second downlink time zone on the base station side [nT] F ,nT F +t], duration t; the communication range of the second uplink time zone on the base station side is [nT]. F +T D / U +mod(RTD max -T D / U ,T F )+t,nT F +T DL +T D / U +T UL The duration of the second uplink time zone is T. DL +T DL -mod(RTD max -TD / U ,T F The channel efficiency is [T - t]. DL +T UL -mod(RTD max -T D / U ,T F )] / T F .

[0114] Understandably, for In this scenario, based on the first and second overlap conditions, the overlap region type is determined. This further includes: when the first and second overlap conditions meet the fifth single-region overlap requirement, the overlap region type is determined to be the fifth single-region overlap type. The fifth single-region overlap type indicates that a remote segmentation point needs to be set in the remote interference region, and the first time t between the remote segmentation point and the starting point of the remote interference region satisfies 0 ≤ t ≤ min(T). DL ,T UL When the first and second overlap conditions satisfy the sixth single-area overlap requirements, the overlap area type is determined to be the sixth single-area overlap type. The sixth single-area overlap type indicates that a far-end segmentation point needs to be set in the far-end interference area, and the first time t between the far-end segmentation point and the starting point of the far-end interference area satisfies 0≤t≤T1. The fifth single-area overlap requirements include at least one of the following: the first overlap condition indicates that the first delay value is < the maximum time zone value and the first delay value is ≥ the minimum time zone value; the second overlap condition indicates that the second delay value is < the maximum time zone value and the second delay value is ≥ the minimum time zone value; the total time zone duration is ≥ the sum of the first delay value and the second delay value; the first overlap condition indicates that the first delay value is < the maximum time zone value and the first delay value is ≥ the minimum time zone value; the second overlap condition indicates that the second delay value is < the minimum time zone value. The sixth single-area overlap requirements include: the first overlap condition indicates that the first delay value is < the minimum time zone value.

[0115] For example, the first overlap condition min(T) DL ,T UL )≤mod(RTD max -T D / U ,T F ) < max(T DL ,T UL The second overlap condition is min(T). DL ,T UL )≤mod(RTD min -T D / U ,T F ) < max(T DL ,T UL And T DL -mod(RTD max -T D / U T F)≥mod(RTD min -T D / U T F )-T UL The overlapping region type is the fifth single-region overlapping type, when T DL ≥T UL This forms the interference area, as shown in Figure 8a, which is a shaded region. The far-end interference area is the lower top edge of this shaded region; the starting point of the far-end interference area is labeled B, and the far-end segmentation point is labeled A. The first time interval between A and B satisfies 0 ≤ t ≤ T. UL The communication range of the second downlink time zone on the base station side is [nT] F ,nT F +T DL -mod(RTD max -T D / U ,T F )+t], the duration T of the second downlink time zone DL -mod(RTD max -T D / U ,T F )+t; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t,nT F +T DL +T D / U +T UL The duration T of the second uplink time zone UL -t. Channel efficiency is [T] DL +T UL -mod(RTD max -T D / U ,T F )] / T F .

[0116] For example, the first overlap condition min(T) DL ,T UL )≤mod(RTD max -T D / U ,T F ) < max(T DL ,T UL The second overlap condition is min(T). DL ,T UL )≤mod(RTD min -T D / U ,T F ) < max(T DL ,T UL And T UL -mod(RTD max -T D / UT F )≥mod(RTD min -T D / U T F )-T DL The overlapping region type is the fifth single-region overlapping type, when T DL <T UL This forms the shaded interference area shown in Figure 8b, where the far-end interference area is the lower top edge of the shaded region. The starting point of the far-end interference area is labeled B, and the far-end segmentation point is labeled A. The first time interval between A and B satisfies 0 ≤ t ≤ T. DL The communication range of the second downlink time zone on the base station side [nT] F ,nT F +t], the duration of the second downlink time zone is t; the communication range of the second uplink time zone on the base station side is [nT]. F +T D / U +mod(RTD max -T D / U ,T F )+t,nT F +T DL +T D / U +T UL The duration of the second uplink time zone is T. DL +T UL -mod(RTD max -T D / U ,T F The channel efficiency is [T - t]. DL +T UL -mod(RTD max -T D / U ,T F )] / T F .

[0117] For example, the first overlap condition is min(T) DL ,T UL )≤mod(RTD max -T D / U ,T F ) < max(T DL ,T UL The second overlap condition is 0 ≤ mod(RTD). min -T D / U ,T F )<min(T DL ,T UL ), the overlapping region type is the fifth single-region overlapping type; when T DL ≥T ULThis forms the interference region, as shown in Figure 8c, which is a shaded area. The far-end interference region is the lower top edge of this shaded area. The starting point of the far-end interference region is labeled B, and the far-end segmentation point is labeled A. The first time interval between A and B satisfies 0 ≤ t ≤ T. UL The communication range of the second downlink time zone on the base station side is [nT] F ,nT F +T DL -mod(RTD max -T D / U ,T F )+t], the duration T of the second downlink time zone DL -mod(RTD max -T D / U ,T F )+t; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t,nT F +T DL +T D / U +T UL The duration T of the second uplink time zone UL -t. Channel efficiency is [T] DL +T UL -mod(RTD max -T D / U ,T F )] / T F .

[0118] For example, the first overlap condition is min(T) DL ,T UL )≤mod(RTD max -T D / U ,T F ) < max(T DL ,T UL The second overlap condition is 0 ≤ mod(RTD). min -T D / U ,T F )<min(T DL ,T UL ), the overlapping region type is the fifth single-region overlapping type; when T DL <T UL This forms the interference region, as shown in Figure 8d, which is a shaded area. The far-end interference region corresponds to the lower top edge of the shaded area. Let B be the starting point of the far-end interference region and A be the far-end segmentation point. The first time interval between A and B satisfies 0 ≤ t ≤ T. DL The communication range of the second downlink time zone on the base station side [nT] F ,nT F+t], the duration of the second downlink time zone is t; the communication range of the second uplink time zone on the base station side is [nT]. F +T D / U +mod(RTD max -T D / U ,T F )+t,nT F +T DL +T D / U +T UL The duration of the second uplink time zone is T. DL +T UL -mod(RTD max -T D / U ,T F The channel efficiency is [T - t]. DL +T UL -mod(RTD max -T D / U ,T F )] / T F .

[0119] For example, the first overlap condition is 0 ≤ mod(RTD) max -T D / U ,T F )<min(T DL ,T UL The overlapping region type is the sixth single-region overlapping type, forming the interference area of ​​the shaded part as shown in Figure 8e; wherein, the far-end interference area corresponds to the lower top edge of the shaded part. The starting point of the far-end interference area is marked as B, and the far-end segmentation point is marked as A. Then, the first time interval between A and B satisfies 0 ≤ t ≤ mod(RTD). max -T D / U ,T F The communication range of the second downlink time zone on the base station side is [nT]. F ,nT F +T DL -mod(RTD max -T D / U ,T F )+t], the duration T of the second downlink time zone DL -mod(RTD max -T D / U ,T F )+t; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t,nT F +T DL +T D / U +T UL The duration T of the second uplink time zone UL-t. Channel efficiency is [T] DL +T UL -mod(RTD max -T D / U ,T F )] / T F .

[0120] for In the scenario described, based on the first and second overlap conditions, the overlap region type is determined, including: when the first overlap condition indicates that the first delay value is less than the minimum time zone value and the second overlap condition indicates that the second delay value is greater than or equal to the total time zone duration, the overlap region type is determined to be the sixth single-region overlap type; when the first overlap condition indicates that the first delay value is greater than or equal to the minimum time zone value and the first delay value is less than the maximum time zone value, and the second overlap condition indicates that the second delay value is greater than or equal to the total time zone duration, the overlap region type is determined to be the fifth single-region overlap type.

[0121] For example, the first overlap condition is 0 ≤ mod(RTD) max -T D / U ,T F )<min(T DL ,T UL The second overlap condition is T. DL +T UL ≤mod(RTD min -T D / U ,T F The overlapping region type is the sixth single-region overlapping type; thus, the interference region of the shaded area shown in Figure 9a is formed, where the far-end interference region corresponds to the lower top edge of the shaded area; as shown in Figure 9a, the starting point of the far-end interference region is marked as B, and the far-end segmentation point is marked as A. Then, the first time interval between A and B satisfies 0 ≤ t ≤ mod(RTD) max -T D / U ,T F The communication range of the second downlink time zone on the base station side is [nT]. F ,nT F +T DL -mod(RTD max -T D / U ,T F The duration of the second downlink time zone is T. DL -mod(RTD max -T D / U ,T F )+t; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t,nT F +T DL +T D / U +TUL The duration T of the second uplink time zone UL -t. Channel efficiency [T] DL +T UL -mod(RTD max -T D / U ,T F )] / T F .

[0122] For example, the first overlap condition is min(T) DL ,T UL )≤mod(RTD max -T D / U ,T F ) < max(T DL ,T UL The second overlap condition is T. DL +T UL ≤mod(RTD min -T D / U ,T F ), the overlapping region type is the fifth single-region overlapping type; when T DL ≥T UL This forms the interference area shown in Figure 9b, which is the shaded region. The far-end interference area corresponds to the lower top edge of the shaded region. As shown in Figure 9b, the starting point of the far-end interference area is marked as B, and the far-end segmentation point is marked as A. The first time interval between A and B satisfies 0 ≤ t ≤ T. UL The communication range of the second downlink time zone on the base station side [nT] F ,nT F +T DL -mod(RTD max -T D / U ,T F The duration of the second downlink time zone is T. DL -mod(RTD max -T D / U ,T F )+t; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t,nT F +T DL +T D / U +T UL The duration T of the second uplink time zone UL -t. Channel efficiency is [T] DL +T UL -mod(RTD max -T D / U ,T F )] / T F .

[0123] For example, the first overlap condition is min(T) DL ,T UL )≤mod(RTD max -T D / U ,T F ) < max(T DL ,T UL The second overlap condition is T. DL +T UL ≤mod(RTD min -T D / U ,T F ), the overlapping region type is the fifth single-region overlapping type; when T DL <T UL This forms the interference area shown in Figure 9c, which is the shaded region. The far-end interference area corresponds to the lower top edge of the shaded region. As shown in Figure 9c, the starting point of the far-end interference area is marked as B, and the far-end segmentation point is marked as A. The first time interval between A and B satisfies 0 ≤ t ≤ T. DL Communication range of the second downlink time zone on the base station side The duration t of the second downlink time zone; the communication range of the second uplink time zone on the base station side is [nT]. F +T D / U +mod(RTD max -T D / U ,T F )+t,nT F +T DL +T D / U +T UL The duration of the second uplink time zone is T. DL +T UL -mod(RTD max -T D / U ,T F The channel efficiency is [T - t]. DL +T UL -mod(RTD max -T D / U ,T F )] / T F .

[0124] for In this scenario, based on the first and second overlap conditions, the overlap region type is determined. This further includes: when the second and first overlap conditions satisfy the first multi-region overlap requirement, the overlap region type is determined to be the first multi-region overlap type. The segmentation point constraint relationship is then determined based on the first delay value, the second delay value, and the first duration difference between the first downlink time zone, as well as the second duration difference between the second delay value and the first uplink time zone. The first multi-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference zone and a far-end segmentation point needs to be set in the far-end interference zone, and the second duration t1 between the near-end segmentation point and the starting point of the near-end interference zone satisfies 0 ≤ t1 ≤ T. DL +T UL -T2, the third time interval t2 between the far-end segmentation point and the starting point of the far-end interference zone satisfies 0 ≤ t2 ≤ T1; the segmentation point constraint relationship means that t1 ≤ T1 when the first time delay value ≤ the first time interval difference and the first time delay value is greater than the second time interval difference. DL -T1+t2 and the case where the first delay value is greater than the first duration difference and the first delay value is less than or equal to the second duration difference, t2≤T2-T DL +t1; When the second overlap condition and the first overlap condition satisfy the second multi-region overlap requirement, the overlap region type is determined to be the second multi-region overlap type, and the segmentation point constraint relationship is determined according to the first uplink time zone, the first downlink time zone, the first delay value, and the second delay value. The second multi-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region and a far-end segmentation point needs to be set in the far-end interference region. The second duration t1 corresponding to the near-end segmentation point satisfies 0≤t1≤T. DL +T UL -T2, the third duration t2 corresponding to the far segmentation point satisfies 0≤t2≤min(T DL ,T UL The split point constraint relationship indicates that if T UL ≤T DL Then t2≤T2-T DL +t1, and if T UL >T DL Then t1≤t2; The first multi-region overlap requirement includes: the first overlap condition means the first delay value < the minimum time zone value; the second overlap condition means the second delay value < the total duration of the time zone and the second delay value ≥ the maximum time zone value; the second multi-region overlap requirement includes: the first overlap condition means the first delay value < the maximum time zone value and the first delay value ≥ the minimum time zone value; the second overlap condition means the second delay value < the total duration of the time zone and the second delay value ≥ the maximum time zone value.

[0125] For example, as shown in Figures 10a to 10c, when the first overlap condition is 0 ≤ mod(RTD) max -T D / U ,T F )<min(TDL ,T UL The second overlap condition is max(T); DL ,T UL )≤mod(RTD min -T D / U ,T F ) < T DL +T UL The overlapping region type is the first multi-region overlapping type, forming the near-end interference region and the far-end interference region as shown in Figure 10a. The starting point of the near-end interference region is B2, and the near-end segmentation point is A2. The starting point of the far-end interference region is B1, and the far-end segmentation point is A1. The second duration of the interval between A2 and B2 satisfies 0 ≤ t1 ≤ T. DL +T UL -mod(RTD min -T D / U ,T F The third duration of the interval between A1 and B1 satisfies 0 ≤ t2 ≤ mod(RTD). max -T D / U ,T F Meanwhile, in order to further reduce the new interference zone formed by the mutual influence between the near-end segmentation point and the far-end segmentation point, user terminals that meet the first overlap condition and the second overlap condition are further classified, resulting in three interference situations as shown in Figures 10a to 10c, as detailed below.

[0126] For example, as shown in Figure 10a, when mod(RTD) max -T D / U ,T F )≤mod(RTD min -T D / U ,T F )-max(T DL ,T UL The second and third time durations have no dividing point constraint relationship, and the communication range of the second downlink time zone on the base station side is [nT]. F +t1,nT F +T DL -mod(RTD max -T D / U ,T F The duration of the second downlink time zone is T. DL -mod(RTD max -T D / U ,T F )+t2-t1; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t2,nT F +TD / U +mod(RTD min -T D / U ,T F The duration of the second uplink time zone is mod(RTD) + t1], where mod(RTD) is the length of the uplink time zone. min -T D / U ,T F )-T DL -t2+t1. The channel efficiency is [mod(RTD)]. min -T D / U ,T F )-mod(RTD max -T D / U ,T F )] / T F At this point, as shown in Figure 10a, when A2 and A1 are used as dividing points, the signal coverage areas of the second downlink time zone and the second uplink time zone are shown by the dotted lines in Figure 10a. At this time, the overlapping area of ​​the second uplink and second downlink time zones coincides with the target user terminal group only at dividing points A2 and A1.

[0127] For example, as shown in Figure 10b, when mod(RTD) max -T D / U ,T F )≤mod(RTD min -T D / U ,T F )-T DL And mod(RTD) max -T D / U ,T F )>mod(RTD min -T D / U ,T F )-T UL At that time, the constraint relationship of the dividing point satisfies t1≤T DL -mod(RTD max -T D / U ,T F )+t2, the communication range of the second downlink time zone on the base station side is [nT F +t1,nT F +T DL -mod(RTD max -T D / U ,T F )+t2], the duration T of the second downlink time zone DL -mod(RTD max -T D / U ,T F )+t2-t1; Communication range of the second uplink time zone on the base station side [nT F +T DL +TD / U +t2,nT F +T D / U +mod(RTD min -T D / U ,T F )+t1], the duration of the second uplink time zone mod(RTD) min -T D / U ,T F )-T DL -t2+t1. The channel efficiency is [mod(RTD)]. min -T D / U ,T F )-mod(RTD max -T D / U ,T F )] / T F .

[0128] For example, when mod(RTD) max -T D / U ,T F )>mod(RTD min -T D / U ,T F )-T DL And mod(RTD) max -T D / U ,T F )≤mod(RTD min -T D / U ,T F )-T UL As shown in Figure 10c, the constraint relationship of the dividing points satisfies t2 ≤ mod(RTD). min -T D / U ,T F )-T DL +t1; At this time, the communication range of the second downlink time zone on the base station side is [nT F +t1,nT F +T DL -mod(RTD max -T D / U ,T F The duration of the second downlink time zone is T. DL -mod(RTD max -T D / U ,T F )+t2-t1; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t2,nT F +T D / U +mod(RTD min -TD / U ,T F The duration of the second uplink time zone is mod(RTD) + t1], where mod(RTD) is the length of the uplink time zone. min -T D / U ,T F )-T DL -t2+t1. The channel efficiency is [mod(RTD)]. min -T D / U ,T F )-mod(RTD max -T D / U ,T F )] / T F .

[0129] Therefore, as shown in Figures 10a to 10c, for the overlapping region type of the first multi-region overlapping type, the constraint relationship of its segmentation point satisfies the condition that t1≤T when the first time delay value ≤ the first time duration difference and the first time delay value is greater than the second time duration difference. DL -T1+t2 and the case where the first delay value is greater than the first duration difference and the first delay value is less than or equal to the second duration difference, t2≤T2-T DL +t1; In other cases, the second and third durations are not constrained.

[0130] For example, as shown in Figures 10d and 10e, the first overlap condition is min(T) DL ,T UL )≤mod(RTD max -T D / U ,T F ) < max(T DL ,T UL The second overlap condition is max(T); DL ,T UL )≤mod(RTD min -T D / U ,T F ) < T DL +T UL The overlapping region type is the second multi-region overlapping type, forming the near-end interference region and the far-end interference region as shown in Figures 10d and 10e. The starting point of the near-end interference region is B2, and the near-end segmentation point is A2. The starting point of the far-end interference region is B1, and the far-end segmentation point is A1. The second time interval t1 between A2 and B2 satisfies 0 ≤ t1 ≤ T. DL +T UL -mod(RTD min -T D / U ,T F The third time interval t2 between A1 and B1 satisfies 0 ≤ t2 ≤ min(T). DL ,T ULMeanwhile, in order to further reduce the new interference zone formed by the mutual influence between the near-end segmentation point and the far-end segmentation point, user terminals that meet the first overlap condition and the second overlap condition are further classified, resulting in two interference situations as shown in Figures 10d to 10e. The specific details are as follows.

[0131] For example, as shown in Figure 10d, when T DL ≥T UL The constraint relationship for the split point is t2 ≤ mod(RTD). min -T D / U ,T F )-T DL +t1; The communication range of the second downlink time zone on the base station side is [nT] F +t1,nT F +T DL -mod(RTD max -T D / U ,T F The duration of the second downlink time zone is T. DL -mod(RTD max -T D / U ,T F )+t2-t1; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t2,nT F +T D / U +mod(RTD min -T D / U ,T F The duration of the second uplink time zone is mod(RTD) + t1], where mod(RTD) is the length of the uplink time zone. min -T D / U ,T F )-T DL -t2+t1. Channel efficiency [mod(RTD)] min -T D / U ,T F )-mod(RTD max -T D / U ,T F )] / T F .

[0132] For example, as shown in Figure 10e, T DL <T UL The constraint relationship of the dividing point is t1≤t2; the communication range of the DL area on the base station side is [nT]. F +t1,nT F +t2], duration of the second downlink time zone t2-t1; communication range of the UL zone on the base station side [nT] F +TD / U +mod(RTD max -T D / U ,T F )+t2,nT F +T D / U +mod(RTD min -T D / U ,T F )+t1], the duration of the second uplink time zone mod(RTD) min -T D / U ,T F )-mod(RTD max -T D / U ,T F The channel efficiency is [mod(RTD) + t1 - t2]. min -T D / U ,T F )-mod(RTD max -T D / U ,T F )] / T F .

[0133] for In this scenario, based on the first and second overlap conditions, the overlap region type is determined. This further includes: when the second and first overlap conditions satisfy the third multi-region overlap requirement, the overlap region type is determined to be the third multi-region overlap type, and the segmentation point constraint relationship is determined based on the duration of the first uplink time zone and the first downlink time zone. The third multi-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference zone and a far-end segmentation point needs to be set in the far-end interference zone, and the second duration t1 corresponding to the near-end segmentation point satisfies 0 ≤ t1 ≤ min(T DL ,T UL The third duration t2 corresponding to the far-end segmentation point satisfies 0 ≤ t2 ≤ T1; the constraint relationship of the segmentation point is characterized if T UL ≤T DL Then t2≤t1, if T UL >T DL Then t1≤T DL -T1+t2; When the second overlap condition and the first overlap condition satisfy the fourth multi-region overlap requirement, the overlap region type is determined to be the fourth multi-region overlap type, and the segmentation point constraint relationship is determined according to the first uplink time zone and the first downlink time zone. The fourth multi-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region and a far-end segmentation point needs to be set in the far-end interference region. Furthermore, the second duration t1 corresponding to the near-end segmentation point satisfies 0≤t1≤min(T DL ,T UL The third time interval t2 corresponding to the remote segmentation point satisfies 0 ≤ t2 ≤ min(T). DL ,TUL The constraint relationship of the dividing point represents that if T UL ≤T DL Then t2≤t1, if T UL >T DL Then t1≤t2; the third multi-region overlap requirements include: the first overlap condition means the first time delay value < the time zone minimum value; the second overlap condition means the second time delay value < the time zone maximum value and the second time delay value ≥ the time zone minimum value; the fourth multi-region overlap requirements include: the first overlap condition means the first time delay value < the time zone maximum value and the first time delay value ≥ the time zone minimum value; the second overlap condition means the second time delay value < the time zone maximum value and the second time delay value ≥ the time zone minimum value.

[0134] For example, as shown in Figures 11a and 11b, the first overlap condition is 0 ≤ mod(RTD). max -T D / U ,T F )<min(T DL ,T UL The second overlap condition is min(T); DL ,T UL )≤mod(RTD min -T D / U ,T F ) < max(T DL ,T UL The overlapping region type is the third multi-region overlapping type, forming the near-end interference region and the far-end interference region as shown in Figures 11a and 11b. The starting point of the near-end interference region is B2, and the near-end segmentation point is A2. The starting point of the far-end interference region is B1, and the far-end segmentation point is A1. Then, the second time interval t1 between A2 and B2 satisfies 0 ≤ t1 ≤ min(T UL ,T DL The third duration t2 between A1 and B1 satisfies 0 ≤ t2 ≤ mod(RTD). max -T D / U ,T F Meanwhile, since the durations of the first uplink time zone and the second downlink time zone are different, a dividing point constraint relationship is generated between the second and third durations. Therefore, further classification is required based on the first uplink time zone and the second downlink time zone, as follows.

[0135] For example, as shown in Figure 11a, when T DL ≥T UL The constraint relationship of the dividing point is t2≤t1, 0≤t1≤T UL The communication range of the second downlink time zone on the base station side is [nT]. F +T DL -mod(RTD min -T D / U ,T F)+t1,nT F +T DL -mod(RTD max -T D / U ,T F The duration of the second downlink time zone is mod(RTD) + t2], where t2 is the length of the downlink time zone. min -T D / U ,T F )-mod(RTD max -T D / U ,T F )+t2-t1; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t2,nT F +T DL +T D / U +t1], the duration of the second uplink time zone is duration t1-t2. The channel efficiency is [mod(RTD]]. min -T D / U ,T F )-mod(RTD max -T D / U ,T F )] / T F .

[0136] For example, as shown in Figure 11b, when T DL <T UL The constraint relationship of the dividing point is t1≤T DL -mod(RTD max -T D / U ,T F )+t2,0≤t1≤min(T UL ,T DL ) is 0≤t1≤T DL The communication range of the second downlink time zone on the base station side is [nT]. F +t1,nT F +T DL -mod(RTD max -T D / U ,T F )+t2], the duration T of the second downlink time zone DL -mod(RTD max -T D / U ,T F )+t2-t1; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t2,nT F +mod(RTD min -T D / U,T F )+T D / U +t1], the duration of the second uplink time zone is mod(RTD) min -T D / U ,T F )-T DL -t2+t1. Channel efficiency [mod(RTD)] min -T D / U ,T F )-mod(RTD max -T D / U ,T F )] / T F .

[0137] For example, as shown in Figures 11c to 11d, the first overlap condition is min(T) DL ,T UL )≤mod(RTD max -T D / U ,T F ) < max(T DL ,T UL The second overlap condition is min(T); DL ,T UL )≤mod(RTD min -T D / U ,T F ) < max(T DL ,T UL The overlapping region type is the fourth multi-region overlapping type, forming the near-end interference region and the far-end interference region as shown in Figures 11c and 11d. The starting point of the near-end interference region is B2, and the near-end segmentation point is A2. The starting point of the far-end interference region is B1, and the far-end segmentation point is A1. Then, the second time interval t1 between A2 and B2 satisfies 0 ≤ t1 ≤ min(T DL ,T UL The third time interval t2 between A1 and B1 satisfies 0 ≤ t2 ≤ min(T). DL ,T UL Meanwhile, since the durations of the first uplink time zone and the second downlink time zone are different, a dividing point constraint relationship is generated between the second and third durations. Therefore, further classification is required based on the first uplink time zone and the second downlink time zone, as follows.

[0138] For example, as shown in Figure 11c, when T DL ≥T UL The second duration t1 satisfies 0 ≤ t1 ≤ T UL The third duration t2 satisfies 0 ≤ t2 ≤ T UL The dividing point constraint relationship is t2≤t1. At this time, as shown in Figure 11c, the communication range of the second downlink time zone on the base station side is [nT].F +T DL -mod(RTD min -T D / U ,T F )+t1,nT F +T DL -mod(RTD max -T D / U ,T F The duration of the second downlink time zone is mod(RTD) + t2], where t2 is the length of the downlink time zone. min -T D / U ,T F )-mod(RTD max -T D / U ,T F )-t1+t2; The communication range of the second uplink time zone on the base station side is [nT F +T DL +T D / U +t2,nT F +T DL +T D / U +t1], the duration of the second uplink time zone is t1-t2. The channel efficiency is [mod(RTD]]. min -T D / U ,T F )-mod(RTD max -T D / U ,T F )] / T F .

[0139] For example, as shown in Figure 11d, when T DL <T UL The second duration t1 satisfies 0 ≤ t1 ≤ T DL The third duration t2 satisfies 0 ≤ t2 ≤ T. DL The segmentation point constraint relationship is t1≤t2. At this time, as shown in Figure 11d, the communication range of the second downlink time zone on the base station side is [nT]. F +t1,nT F +t2], the duration of the second downlink time zone is t2-t1; the communication range of the second uplink time zone on the base station side is [nT] F +mod(RTD max -T D / U ,T F )+T D / U +t2,nT F +mod(RTD min -T D / U ,T F )+T D / U +t1], duration of the second uplink time zone mod(RTD) min -T D / U ,TF )-mod(RTD max -T D / U ,T F )-t2+t1. The channel efficiency is [mod(RTD)] min -T D / U ,T F )-mod(RTD max -T D / U ,T F )] / T F .

[0140] It should be noted that, as shown in Figures 5b to 11d, when the location of the target user terminal group is clear, the receiving time of the uplink signal and the sending time of the downlink signal in the first downlink time zone of each user terminal in the interference zone can be determined. Therefore, when the interval between the segmentation point and the starting point of the interference zone is determined, the start time of the second uplink time zone, the end time of the second downlink time zone, the start time of the second uplink time zone, and the end time of the second uplink time zone can be determined based on the location of the user terminal. Thus, by classifying the interference zones in different scenarios through the above classification, the efficiency of the calculation can be improved.

[0141] Understandably, before determining the physical frame interference type, the method also includes: obtaining a communication range mapping table, wherein the communication range mapping table is used to record the relationship between overlapping areas, round-trip delay data, and overlapping area types; and determining the overlapping area type corresponding to the overlapping area based on the round-trip delay data, including: matching the overlapping area and round-trip delay data with the communication range mapping table to obtain the overlapping area type.

[0142] It should be noted that the communication range mapping table can set a classification record for each embodiment in Figures 5a to 11d, thereby obtaining the corresponding overlapping area type and the second uplink time zone and the second downlink time zone under the corresponding type.

[0143] For example, the communication range mapping table is divided into intra-physical frame interference and cross-physical frame interference as the first-level classification directory. In the classification record table under intra-physical frame interference, the first overlap condition is the second-level classification directory and the second overlap condition is the third-level classification directory. Under the cross-physical frame interference classification, the second overlap condition is the second-level classification directory, the first overlap condition is the third-level classification directory, and the split point constraint relationship is the fourth-level classification directory. Then, in the communication mapping table, Figures 5a to 11d each form a separate classification record. In this way, the corresponding overlap area type can be quickly queried and the second uplink time zone and the second downlink time zone can be obtained, as shown in Examples 1 to 3.

[0144] As in Example 1, taking a regenerative satellite at an altitude of 1200 km and a minimum elevation angle of 30° for the UE as an example, the edge beam RTD is taken. max =13.5ms, RTD min = 11.5ms, target frame length T F =10ms, DL zone duration T DL =6ms, UL zone duration T UL =3ms, base station-side D / U handover duration T D / U U / D switching time T U / D All values ​​are taken as 0.5ms. The calculations are then performed sequentially as follows.

[0145] The second TDD frame number is: The first TDD frame number is: That is, the first TDD frame count and the second TDD frame count satisfy... At this point, the physical frame interference type can be determined to be interference within the same physical frame area; further matching is performed on the classification records under the same physical frame area interference category in the communication range table. The first delay value is calculated to obtain mod(RTD). max -T D / U ,T F ) = mod(13.5-0.5,10) = 3; that is, the first overlap condition satisfies min(6,3)≤3<max(6,3), calculate the second time delay value, mod(RTD) min -T D / U ,T F ) = mod(11.5 - 0.5, 10) = 1, meaning the second overlap condition satisfies 0 ≤ 1 < min(6, 3); the overlap region type is the fifth single-region overlap type; since T DL ≥T UL Therefore, it conforms to the scenario in Figure 8C; at this time, 0≤t≤3, the communication range of the second downlink time zone on the base station side [nT] F ,nT F +3+t], duration 3+t; communication range of the second uplink time zone on the base station side [nT] F +6.5+t,nT F +9.5], duration 3-t. Channel efficiency 610. At this point, t can be configured according to actual needs to obtain the specific second uplink time zone and second downlink time zone.

[0146] As in Example 2, taking a regenerative satellite at an altitude of 1200 km and a minimum elevation angle of 30° for the UE as an example, the nadir beam RTD is taken. max =9ms, RTD min =8ms, target frame length TF=10ms, DL zone duration T DL =4.5ms, UL zone duration T UL=4.5ms, and the base station-side D / U handover time TD / U and U / D handover time TU / D are both taken as 0.5ms. Then the calculations are as follows: That is to say At this point, the physical frame interference type can be determined to be interference within the same physical frame area; further matching is performed on the classification records under the same physical frame area interference category in the communication range table. The first delay value T1 is calculated as mod(RTD). max -T D / U ,T F ) = mod(9-0.5,10) = 8.5, which means the first overlap condition satisfies max(6,3)≤8.5<6+3; further, the second time delay value T2 is calculated as mod(RTD) min -T D / U ,T F ) = mod(8-0.5, 10) = 7.5; that is, the second overlap condition satisfies max(6, 3) ≤ 7.5 < 6 + 3; therefore, the overlap region type can be determined to be the first single-region overlap type. The first duration t satisfies 0 ≤ t ≤ 1.5, and the communication range of the second downlink time zone on the base station side [nT] F +t,nT F +6], duration 6-t; communication range of the second uplink time zone on the base station side [nT] F +6.5,nT F [+8+t], duration 1.5+t. Channel efficiency 7.510.

[0147] As in Example 3, taking a regenerative satellite at an altitude of 1200 km and a minimum elevation angle of 30° for the UE as an example, the intermediate region beam RTD is taken. max =10.5ms, RTD min = 9.5ms, target frame length T F =10ms, DL zone duration T DL =4.5ms, UL zone duration T UL =4.5ms, and the base station-side D / U handover time TD / U and U / D handover time TU / D are both taken as 0.5ms. The calculations are as follows. That is to say At this point, the physical frame interference type can be determined to be cross-physical frame area interference; further matching is performed on the classification records under the cross-physical frame area interference category in the communication range table. The second delay value T2 is calculated as mod(RTD). min -T D / U ,T F ) = mod(9.5-0.5, 10) = 9; that is, the second overlap condition satisfies 6+3≤9; calculate the first time delay value T1 as mod(RTD) max -T D / U ,T F) = mod(10.5-0.5,10) = 0, meaning the first overlap condition is 0 ≤ 0 < min(6,3), and the overlap region type is the sixth single-region overlap type. At this time, the first duration t satisfies 0 ≤ t ≤ 0, therefore the communication range of the second downlink time zone on the base station side... Duration Communication range of the second uplink time zone on the base station side Duration Channel efficiency: 9 / 10.

[0148] It should be noted that the table lookup process can be performed in real time, or the specific frame structure of each corresponding wave position can be calculated in advance based on the beam characteristics. In actual communication, it is only necessary to select the corresponding frame structure based on the wave position for communication.

[0149] Understandably, before step S100, the method further includes: determining the second downlink time zone and the second uplink time zone based on the pre-configured time zone information. The second downlink time zone and the second uplink time zone are obtained by a preset determining device based on the round-trip delay data and the overlapping area formed by the first uplink time zone and the first downlink time zone, and the overlapping area type determined by the device.

[0150] By pre-calculating the second downlink time zone and the second uplink time zone, and generating pre-configured time zone information containing the second downlink time zone and the second uplink time zone, the efficiency of configuration can be improved.

[0151] It should be noted that in some embodiments, the device performing the determination method is a base station. In this case, the base station can support direct configuration of the second uplink time zone and the second downlink time zone. When the second uplink time zone and the second downlink time zone are not configured, steps S100 to S300 are executed. It should also be noted that since the communication areas in the final frame structure of each beam are all within the corresponding communication areas of the basic frame structure, when the inter-beam isolation is high, the same antenna can be used to communicate simultaneously over the coverage areas of the three beams, and each beam uses a frame structure with high channel efficiency.

[0152] It is understood that, referring to FIG12, in a third aspect, an embodiment of this application also provides a network device, including: at least one processor 701; at least one memory 702 configured to store at least one program that, when executed by at least one processor 701, implements the method of any one of the first aspects described above.

[0153] The memory 702, as a non-transitory network system, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, the memory 702 may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 702 may optionally include remotely located memories 702 relative to the processor 701, which can be connected to the processor 701 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0154] The memory 702 can be implemented as a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 702 can store the operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 702 and is called and executed by the processor 701.

[0155] The processor 701 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application.

[0156] In some embodiments, the network device further includes: an input / output interface configured to implement information input and output; a communication interface configured to enable communication interaction between the device and other devices, which can be implemented via wired means (e.g., USB, Ethernet cable, etc.) or via wireless means (e.g., mobile network, WIFI, Bluetooth, etc.); and a bus for transmitting information between various components of the device (e.g., processor 701, memory 702, input / output interface, and communication interface); wherein the processor 701, memory 702, input / output interface, and communication interface can be interconnected within the device via the bus.

[0157] Fourthly, one embodiment of this application also provides a computer-readable storage medium storing computer-executable instructions for performing the method of any one of the first aspects described above.

[0158] Fifthly, an embodiment of this application also provides a computer program product, including a computer program or computer instructions stored in a computer-readable storage medium, wherein a processor of a computer device reads the computer program or computer instructions from the computer-readable storage medium, and the processor executes the computer program or computer instructions to cause the computer device to perform the method of any one of the first aspects described above.

[0159] The system architecture and application scenarios described in this application are intended to more clearly illustrate the technical solutions of this application and do not constitute a limitation on the technical solutions provided in this application. Those skilled in the art will understand that as system architectures evolve and new application scenarios emerge, the technical solutions provided in this application are also applicable to similar technical problems.

[0160] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0161] The above description, with reference to the accompanying drawings, illustrates some embodiments of this application, but does not limit the scope of this application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and spirit of this application shall be within the scope of this application.

Claims

1. A method for determining the uplink and downlink time zones of a time-division duplex signal, comprising: The round-trip latency data of the target user terminal group and the time zone division data of the time division duplex (TDD) physical frame are obtained, wherein the time zone division data includes a first uplink time zone and a first downlink time zone; Based on the overlapping area formed by the first uplink time zone and the first downlink time zone, the overlapping area type corresponding to the overlapping area is determined according to the round-trip delay data; Based on the overlapping region type, a second uplink time zone corresponding to the first uplink time zone and a second downlink time zone corresponding to the first downlink time zone are determined, so that the base station can transmit and receive data according to the second uplink time zone and the second downlink time zone of the TDD physical frame.

2. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 1, characterized in that, The time zone division data also includes the TDD frame length, and the round-trip time delay data includes the maximum round-trip time delay value and the minimum round-trip time delay value. Determining the overlap region type corresponding to the overlap region based on the round-trip time delay data includes: The first TDD frame number is determined based on the maximum round-trip time delay value and the TDD frame length; The second TDD frame number is determined based on the minimum round-trip time value and the TDD frame length; The physical frame interference type is determined based on the first TDD frame number and the second TDD frame number; The overlapping region type corresponding to the overlapping region is determined based on the maximum round-trip time value, the minimum round-trip time value, and the physical frame interference type.

3. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 2, wherein, The time zone division data further includes a first handover duration, which is the handover duration from downlink transmission state to uplink reception state on the base station side; determining the first TDD frame number based on the maximum round-trip time value and the TDD frame length includes: The difference between the maximum round-trip delay value and the first handover duration is divided by the TDD frame length and then rounded down to obtain the first TDD frame number. The step of determining the second TDD frame number based on the minimum round-trip time value and the TDD frame length includes: The difference between the minimum round-trip delay value and the first handover duration is divided by the TDD frame length and then rounded down to obtain the second TDD frame number. The step of determining the physical frame interference type based on the first TDD frame number and the second TDD frame number includes: When the number of the first TDD frames is equal to the number of the second TDD frames, the physical frame interference type is determined to be interference within the same physical frame area; When the number of the first TDD frames differs from the number of the second TDD frames by 1, the physical frame interference type is determined to be cross-physical frame region interference.

4. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 2, wherein, The time zone division data also includes a first handover duration; determining the overlapping region type corresponding to the overlapping region based on the maximum round-trip delay value, the minimum round-trip delay value, and the physical frame interference type includes: The first delay value is obtained by taking the remainder of the difference between the maximum round-trip delay value and the first handover duration and the TDD frame length. The difference between the minimum round-trip delay value and the first handover duration is moduloed by the TDD frame length to obtain the second delay value; When the physical frame interference type is same physical frame area interference, the first overlap condition of the target user terminal group is obtained based on the first delay value and the overlap area of ​​the same TDD physical frame; and the second overlap condition of the target user terminal group is obtained based on the second delay value and the overlap area of ​​the same TDD physical frame. The overlapping region type of the overlapping region is determined based on the first overlapping condition and the second overlapping condition.

5. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 4, wherein, The step of determining the overlapping region type corresponding to the overlapping region based on the maximum round-trip time value, the minimum round-trip time value, and the physical frame interference type further includes: When the physical frame interference type is cross-physical frame region interference, the first overlap condition of the user terminal group is obtained based on the first delay value and the overlap area of ​​two adjacent TDD physical frames; and the second overlap condition of the user terminal group is obtained based on the second delay value and the overlap area of ​​the two adjacent TDD physical frames.

6. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 4, wherein, Determining the overlap region type of the overlapping region based on the first overlap condition and the second overlap condition includes: When the second overlap condition indicates that the second delay value is greater than or equal to the total duration of the time zone, the overlap region type is determined to be a non-overlapping region type; wherein, the non-overlapping region type indicates that the second downlink time zone is the same as the first downlink time zone, and the second uplink time zone is the same as the first uplink time zone; the total duration of the time zone is the sum of the durations of the first uplink time zone and the first downlink time zone; When the second overlap condition indicates that the second delay value is less than the total duration of the time zone and the second delay value is greater than or equal to the maximum time zone value, the overlap region type is determined to be a first single-region overlap type; wherein, the maximum time zone value is the duration of the largest time zone between the first downlink time zone and the first uplink time zone; the first single-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference zone, and the first duration t of the distance between the near-end segmentation point and the starting point of the near-end interference zone satisfies 0 ≤ t ≤ T. DL +T UL -T2; where T DL T represents the duration of the first downlink time zone. UL T1 represents the duration of the first uplink time zone, and T2 represents the second delay value.

7. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 4, wherein, The step of determining the overlap region type of the overlap region based on the first overlap condition and the second overlap condition further includes: When the first overlap condition and the second overlap condition satisfy the second single-region overlap requirement, the overlap region type is determined to be the second single-region overlap type. The second single-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region. The first time t between the near-end segmentation point and the starting point of the near-end interference region satisfies 0 ≤ t ≤ min(T DL ,T UL ); The second single-region overlap requirement must satisfy at least one of the following: The first overlap condition indicates that the first delay value is greater than or equal to the maximum value of the time zone, and the second overlap condition indicates that the second delay value is less than the maximum value of the time zone and the second delay value is greater than or equal to the minimum value of the time zone; wherein, the minimum value of the time zone is the minimum time zone duration between the first downlink time zone and the first uplink time zone; The first overlap condition indicates that the first delay value is less than the maximum value of the time zone and the first delay value is greater than or equal to the minimum value of the time zone; the second overlap condition indicates that the second delay value is less than the maximum value of the time zone and the first delay value is greater than or equal to the minimum value of the time zone; the total duration of the time zone is less than or equal to the sum of the first delay value and the second delay value.

8. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 4, wherein, The step of determining the overlap region type of the overlap region based on the first overlap condition and the second overlap condition further includes: When the first overlap condition and the second overlap condition satisfy the third single-region overlap requirement, the overlap region type is determined to be the third single-region overlap type. The third single-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region. The first time t between the near-end segmentation point and the starting point of the near-end interference region satisfies 0≤t≤T2. When the first overlap condition and the second overlap condition satisfy the fourth single-region overlap requirement, the overlap region type is determined to be the fourth single-region overlap type. The fourth single-region overlap type indicates that a far-end segmentation point needs to be set in the far-end interference region. The first time t between the far-end segmentation point and the starting point of the far-end interference region satisfies 0 ≤ t ≤ T. DL +T UL -T1; T1 represents the first delay value; The third single-region overlap requirement includes: The first overlap condition indicates that the first delay value is less than the total duration of the time zone and the first delay value is greater than or equal to the maximum value of the time zone; the second overlap condition indicates that the second delay value is less than the minimum value of the time zone; the total duration of the time zone is less than or equal to the sum of the first delay value and the second delay value. The fourth single-region overlap requirement includes: The first overlap condition indicates that the first delay value is less than the total duration of the time zone and the first delay value is greater than or equal to the maximum value of the time zone; the second overlap condition indicates that the second delay value is less than the minimum value of the time zone; and the sum of the first delay value and the second delay value is less than or equal to the total duration of the time zone.

9. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 4, wherein, The step of determining the overlap region type of the overlap region based on the first overlap condition and the second overlap condition further includes: When the first overlap condition and the second overlap condition satisfy the fifth single-region overlap requirement, the overlap region type is determined to be the fifth single-region overlap type. The fifth single-region overlap type indicates that a far-end segmentation point needs to be set in the far-end interference region. The first time t between the far-end segmentation point and the starting point of the far-end interference region satisfies 0 ≤ t ≤ min(T) DL ,T UL ); When the first overlap condition and the second overlap condition satisfy the sixth single-region overlap requirement, the overlap region type is determined to be the sixth single-region overlap type. The sixth single-region overlap type indicates that a remote segmentation point needs to be set in the remote interference region. The first time t between the remote segmentation point and the starting point of the remote interference region satisfies 0≤t≤T1. The fifth single-region overlap requirement includes at least one of the following: The first overlap condition indicates that the first delay value is less than the maximum value of the time zone and the first delay value is greater than or equal to the minimum value of the time zone; the second overlap condition indicates that the second delay value is less than the maximum value of the time zone and the second delay value is greater than or equal to the minimum value of the time zone; the total duration of the time zone is greater than or equal to the sum of the first delay value and the second delay value. The first overlap condition indicates that the first delay value is less than the maximum value of the time zone and the first delay value is greater than or equal to the minimum value of the time zone; the second overlap condition indicates that the second delay value is less than the minimum value of the time zone. The sixth single-region overlap requirement includes: The first overlap condition means that the first delay value is less than the minimum value of the time zone.

10. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 5, wherein, Determining the overlap region type of the overlapping region based on the first overlap condition and the second overlap condition includes: When the first overlap condition indicates that the first delay value is less than the minimum time zone value and the second overlap condition indicates that the second delay value is greater than or equal to the total duration of the time zone, the overlap region type is determined to be the sixth single-region overlap type; When the first overlap condition indicates that the first delay value is greater than or equal to the minimum time zone value and the first delay value is less than the maximum time zone value, and the second overlap condition indicates that the second delay value is greater than or equal to the total duration of the time zone, the overlap region type is determined to be the fifth single-region overlap type.

11. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 5, wherein, The step of determining the overlap region type of the overlap region based on the first overlap condition and the second overlap condition further includes: When the second overlap condition and the first overlap condition satisfy the first multi-region overlap requirement, the overlap region type is determined to be the first multi-region overlap type. The segmentation point constraint relationship is determined based on the first delay value, the second delay value, the first duration difference between the first downlink time zone, and the second duration difference between the second delay value and the first uplink time zone. The first multi-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region and a far-end segmentation point needs to be set in the far-end interference region. Furthermore, the second duration t1 between the near-end segmentation point and the starting point of the near-end interference region satisfies 0 ≤ t1 ≤ T. DL +T UL -T2, the third time interval t2 between the far-end segmentation point and the starting point of the far-end interference zone satisfies 0 ≤ t2 ≤ T1; the segmentation point constraint relationship indicates that t1 ≤ T1 when the first delay value ≤ the first time interval difference and the first delay value is greater than the second time interval difference. DL -T1+t2 and the case where the first delay value is greater than the first duration difference and the first delay value is less than or equal to the second duration difference, t2≤T2-T DL +t1; When the second overlap condition and the first overlap condition satisfy the second multi-region overlap requirement, the overlap region type is determined to be the second multi-region overlap type, and the segmentation point constraint relationship is determined according to the duration of the first uplink time zone and the first downlink time zone. The second multi-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region and a far-end segmentation point needs to be set in the far-end interference region. The second duration t1 corresponding to the near-end segmentation point satisfies 0≤t1≤T. DL +T UL -T2, the third duration t2 corresponding to the remote segmentation point satisfies 0≤t2≤min(T DL ,T UL The constraint relationship of the dividing point indicates that if T UL ≤T DL Then t2≤T2-T DL +t1, and if T UL >T DL Then t1≤t2; The first multi-region overlap requirement includes: The first overlap condition indicates that the first delay value is less than the minimum time zone value; the second overlap condition indicates that the second delay value is less than the total duration of the time zone and the second delay value is greater than or equal to the maximum time zone value. The second multi-region overlap requirement includes: The first overlap condition indicates that the first delay value is less than the maximum time zone value and the first delay value is greater than or equal to the minimum time zone value; the second overlap condition indicates that the second delay value is less than the total duration of the time zone and the second delay value is greater than or equal to the maximum time zone value.

12. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 5, wherein, The step of determining the overlap region type of the overlap region based on the first overlap condition and the second overlap condition further includes: When the second overlap condition and the first overlap condition satisfy the third multi-region overlap requirement, the overlap region type is determined to be the third multi-region overlap type, and the segmentation point constraint relationship is determined according to the duration of the first uplink time zone and the first downlink time zone. The third multi-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region and a far-end segmentation point needs to be set in the far-end interference region. Furthermore, the second duration t1 corresponding to the near-end segmentation point satisfies 0 ≤ t1 ≤ min(T DL ,T UL The third duration t2 corresponding to the remote segmentation point satisfies 0 ≤ t2 ≤ T1; the segmentation point constraint relationship represents if T UL ≤T DL Then t2≤t1, if T UL >T DL Then t1≤T DL -T1+t2; When the second overlap condition and the first overlap condition satisfy the fourth multi-region overlap requirement, the overlap region type is determined to be the fourth multi-region overlap type, and the segmentation point constraint relationship is determined according to the first uplink time zone and the first downlink time zone. The fourth multi-region overlap type indicates that a near-end segmentation point needs to be set in the near-end interference region and a far-end segmentation point needs to be set in the far-end interference region. Furthermore, the second duration t1 corresponding to the near-end segmentation point satisfies 0 ≤ t1 ≤ min(T DL ,T UL The third duration t2 corresponding to the remote segmentation point satisfies 0 ≤ t1 ≤ min(T). DL ,T UL The constraint relationship of the dividing point represents if T UL ≤T DL Then t2≤t1, and if T UL >T DL Then t1≤t2; The third multi-region overlap requirement includes: The first overlap condition indicates that the first delay value is less than the minimum time zone value; the second overlap condition indicates that the second delay value is less than the maximum time zone value and the second delay value is greater than or equal to the minimum time zone value. The fourth multi-region overlap requirement includes: The first overlap condition indicates that the first delay value is less than the maximum value of the time zone and the first delay value is greater than or equal to the minimum value of the time zone; the second overlap condition indicates that the second delay value is less than the maximum value of the time zone and the second delay value is greater than or equal to the minimum value of the time zone.

13. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 1, wherein, Before determining the physical frame interference type, the method further includes: Obtain a communication range mapping table, wherein the communication range mapping table is used to record the relationship between overlapping regions, round-trip delay data, and overlapping region types; The step of determining the overlapping region type corresponding to the overlapping region based on the round-trip delay data includes: The overlapping region and the round-trip delay data are matched with the communication range mapping table to obtain the overlapping region type.

14. The method for determining the uplink and downlink time zones of a time-division duplex signal according to claim 1, characterized in that, The method further includes: The second downlink time zone and the second uplink time zone are determined based on the pre-configured time zone information. The second downlink time zone and the second uplink time zone are obtained by a preset determining device based on the round-trip delay data and the overlapping area type determined by the overlapping area formed by the first uplink time zone and the first downlink time zone.

15. A device for determining the uplink and downlink time zones of a time-division duplex signal, comprising: At least one processor; At least one memory is configured to store at least one program; When at least one of the programs is executed by at least one of the processors, the method as described in any one of claims 1 to 14 is implemented.

16. A computer-readable storage medium, wherein, The computer-readable storage medium stores computer-executable instructions for performing the method as described in any one of claims 1 to 14.

17. A computer program product comprising a computer program or computer instructions, wherein, The computer program or the computer instructions are stored in a computer-readable storage medium, and the processor of the network device reads the computer program or the computer instructions from the computer-readable storage medium. The processor executes the computer program or the computer instructions, causing the network device to perform the method as described in any one of claims 1 to 14.

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