WO2023246773A1 - 缓冲区状态请求信息的上报方法、控制器以及存储介质 - Google Patents

缓冲区状态请求信息的上报方法、控制器以及存储介质 Download PDF

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Publication number
WO2023246773A1
WO2023246773A1 PCT/CN2023/101385 CN2023101385W WO2023246773A1 WO 2023246773 A1 WO2023246773 A1 WO 2023246773A1 CN 2023101385 W CN2023101385 W CN 2023101385W WO 2023246773 A1 WO2023246773 A1 WO 2023246773A1
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Prior art keywords
buffer status
reporting
status request
request information
information
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English (en)
French (fr)
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魏艺璇
刘樵文
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • This application relates to the technical field of satellite communications, and specifically to a method, controller and storage medium for reporting buffer status request information.
  • the satellite communication system includes a master station and an end station.
  • the end station needs to report control information to the master station and inform the requested buffer status of the request information size and other information to facilitate resource allocation by the master station;
  • the reporting is carried out through active authorization by the master station, which has the problems of long polling cycle and high delay in reporting control information. If reporting is carried out through the control channel, due to the problem of the same control channel, There is a competitive relationship among multiple end stations, and there is a problem of high collision rate of control information, which overall results in low reporting capacity and affects communication efficiency.
  • the embodiments of this application provide a method, controller, and storage medium for reporting buffer status request information.
  • the solution of this application can reduce the control information reporting delay of each terminal station in the satellite communication system and improve reporting capacity and communication efficiency.
  • embodiments of the present application provide a method for reporting buffer status request information, which is applied to an end station of a satellite communication system.
  • the satellite system further includes a master station.
  • the reporting method includes: receiving a buffer status request. information, generate reporting condition parameters according to the buffer status request information, and send control information generated according to the buffer status request information to the master station when the reporting condition parameters meet the preset threshold value.
  • embodiments of the present application provide a controller, including a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • the processor executes the computer program Implementation is as follows The method for reporting buffer status request information according to any one of the embodiments in one aspect.
  • embodiments of the present application provide a computer-readable storage medium that stores computer-executable instructions.
  • the computer-executable instructions are used to execute the buffer status request information as described in any embodiment of the first aspect. reporting method.
  • Figure 1 is a schematic diagram of a satellite system proposed in an embodiment of the present application.
  • Figure 2 is a flow chart of a method for reporting buffer status request information proposed by another embodiment of the present application.
  • Figure 3 is a flow chart of a method for reporting buffer status request information when the reporting condition parameter is the accumulated resources that need to be applied for a buffer proposed by another embodiment of the present application;
  • Figure 4 is a flow chart of a method for reporting buffer status request information when the reporting condition parameter is the accumulated number of buffer status request information proposed by another embodiment of the present application;
  • Figure 5 is a flow chart of a method for reporting buffer status request information when the reporting condition parameter is the end station reporting probability proposed by another embodiment of the present application;
  • Figure 6 is a flow chart of the method after receiving the scheduling information in the buffer status request information reporting method proposed by another embodiment of the present application.
  • Figure 7 is a flow chart of a method for sending control information according to the retransmission effective time in the buffer status request information reporting method proposed by another embodiment of the present application;
  • Figure 8 is a flow chart of a method for sending control information according to a time interval threshold in the buffer status request information reporting method proposed by another embodiment of the present application;
  • Figure 9 is an example diagram of a method for reporting buffer status request information proposed by another embodiment of the present application.
  • Figure 10 is a structural diagram of a controller proposed in another embodiment of the present application.
  • the functional modules are divided in the system schematic diagram and the logical sequence is shown in the flow chart, in some cases, the module division in the system or the order in the flow chart may be different.
  • the steps shown or described The terms first, second, etc. in the description, claims, and above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.
  • the existing control information reporting method has the following problems.
  • the reporting probability of the end station is low, the polling cycle of the existing control information reporting method will be relatively long, and the control information reporting delay is high.
  • the reporting probability of the end station is high, the existing control information reporting method will In the control information reporting method, multiple end stations in the same control channel have a competitive relationship, which is prone to collision and low communication efficiency.
  • this application discloses a method, controller and storage medium for reporting buffer status request information.
  • the method for reporting buffer status request information is applied to the end station of the satellite communication system.
  • the satellite system also includes The master station, the reporting method includes: receiving the buffer status request information, generating reporting condition parameters based on the buffer status request information, and when the reporting condition parameters meet the preset threshold value, sending the buffer status request information generated based on the buffer status request information to the master station.
  • the control information ensures that the end stations in the satellite system can transmit important information such as the buffer status size of the end stations in the control information to the main station of the satellite system in a more timely and accurate manner when the reporting probabilities are different, to complete the buffering Reporting of zone status information reduces the fairness difference between end stations, increases the reporting capacity of buffer status request information, and reduces the information reporting delay.
  • Figure 1 is a schematic structural diagram of a satellite communication system proposed by an embodiment of the present application.
  • the satellite communication system with the star network structure in Figure 1 mainly includes three parts: the main station 1, the satellite 2, and the end station 3.
  • the end station 3 is the one that needs satellite communication.
  • Terminal, the main station 1 is the control station for information processing and scheduling in satellite communications.
  • the main station 1 plays the role of the control center and is the interface between the satellite system and the ground public network.
  • Ground users can access the satellite system through the ground station to form Link;
  • Satellite 2 acts as a relay station in the air, amplifying the electromagnetic waves sent by the ground station and then returning them to another ground station.
  • transponders In order to facilitate amplification, transmission and reduce modulation interference, a number of transponders are generally installed on the satellite, each of which The transponder allocates a certain working frequency band; the end station 3 contains various user terminals, such as mobile phones, laptops, etc.
  • the communication between end station 3 and end station 3 will be uniformly processed and forwarded at master station 1 through satellite 2.
  • Master station 1 controls all end stations 3 in the community. 3 are interconnected with two hops.
  • the uplink for data transmission is divided into multiple time slots.
  • the master station 1 allocates uplink resources to each end station 3 according to the transmission and reporting status of the end station 3.
  • the control information of station 3 also needs to be scheduled by master station 1 before it can be reported, or it must be reported on a dedicated channel.
  • multiple end stations 3 connect to the main station 1 through satellite 2 for communication.
  • the main station 1 centrally processes and further schedules resources based on the control information content reported by the end stations 3. Resource allocation is performed for each end station 3 in the uplink frame.
  • the control channel method of dividing time slots is used to report the control information of the end station 3, which means to divide a dedicated part of the channel resources and divide it into Multiple time slots (including but not limited to division from time domain and frequency domain). All end stations 3 are also divided into a corresponding number of end station groups, and one end station group may contain multiple end stations 3 .
  • the end station group corresponds to the control channel time slot one-to-one.
  • the end station 3 in the same end station group can only use the control channel time slot corresponding to its own group to send control information.
  • the buffer status request information BSR (Buffer Status Report) is sent by the end station 3 to the master station 1.
  • the terminal device After the terminal device establishes a connection with the access node, when the terminal device needs to send uplink data to the access node , there must be uplink resources. If there are no uplink resources, the terminal device needs to apply for uplink resources from the access node first. During the process of the terminal device applying for uplink resources from the access node, it needs to report a buffer status request to the access node. information so that the access node can schedule appropriate uplink resources for the terminal device.
  • An embodiment of the present application proposes an active authorization method for reporting buffer status request information.
  • the master station polls each end station, and in each uplink frame, allocates resources to each end station in turn, and Deliver resource allocation information.
  • the end station receives the scheduling resources or actively authorized resources allocated to itself, it sends control information on it and reports the BSR.
  • the process steps of the active authorization method include:
  • the disadvantage of the active authorization method is that when there are a large number of end stations and limited resources, the polling cycle will be relatively long, and there will be a relatively large delay in reporting control information; due to the propagation time used for information transmission The delay is too large, and the method of simply waiting for the master station to schedule is inefficient; when the reporting probability of the end station is low, the number of effective reports is reduced, and the reporting capacity is reduced.
  • the control information reporting probability is based on historical data before the system is grouped. The calculated probability that the end station sends control information to the master station to request resources within a certain period of time is calculated. The probability of reporting control information is proportional to the usage of the end station.
  • An embodiment of the present application proposes a control channel mode for reporting buffer status request information.
  • the control channel mode if the end station receives a newly arrived BSR reporting request from the upper layer, it will immediately send a control channel in the control channel of this scheduling cycle. information.
  • control channel method includes:
  • the disadvantage of the control channel method is that multiple end stations can send reporting information on the same control channel resource, and there is a competition relationship between them, which is easier to cause collisions and affect efficiency; at the end station When the station's reporting probability is high, it is easier to send collisions, causing other performance of the system to be affected by the collision probability, resulting in longer delays and smaller reporting capacity.
  • Figure 2 is a flow chart of a method for reporting buffer status request information proposed by another embodiment of the present application.
  • the method for reporting buffer status request information includes but is not limited to the following steps:
  • Step S210 Receive buffer status request information.
  • the received buffer status request information is the buffer status request information received by the end station in the satellite system from the upper service layer, and is the newly arrived buffer status request information, that is, when the buffer status request information is received,
  • this application will be executed to generate reporting condition parameters based on the buffer status request information.
  • the reporting condition parameters meet the preset threshold value, the control information generated based on the buffer status request information will be sent to the master station. method steps.
  • Step S220 Generate reporting condition parameters according to the buffer status request information.
  • reporting condition parameters are generated according to the buffer status request information.
  • the reporting condition parameters include at least one of the following: cumulative resources that need to apply for the buffer, cumulative number of buffer status request information, end station reporting probability, where, Since the communication between the end station and the end station is not completed directly, the source end station first transmits the information to the main station through the satellite, and then the main station transmits the information to the destination end station through the satellite. Since all end stations will Transmitting data to the main station will cause information collisions and conflicts between end stations. Therefore, this application determines the reporting condition parameters and sets the corresponding threshold values to ensure that the triggering conditions for control information reporting can enable the control information to be uploaded in an orderly manner and avoid conflicts, increasing the capacity of the master station to receive effective control information.
  • the cumulative resources that need to be applied for buffers are the cumulative size of newly arrived buffer status request information, that is, the size of the buffer status request information received by the end station at the current moment after the end station last sent control information.
  • the sum of the requested buffer sizes; the cumulative number of buffer status request information is the cumulative number of new buffer status request information, that is, after the end station sent control information last time, the end station receives the buffer status request at the current moment
  • the end station reporting probability is the control information reporting probability, which is the calculated probability of the end station sending control information to the master station to request resources within a certain period of time through historical data before the system is grouped; by accumulating the need to apply for a buffer
  • the resources of the area, the accumulated number of buffer status request information, and one of the end station reporting probabilities are used as the trigger conditions for reporting control information. There can be This effectively avoids the collision of reporting information sent between end stations using the same control channel time slot, while reducing the reporting delay.
  • Step S230 When the reporting condition parameter meets the preset threshold value, control information generated based on the buffer status request information is sent to the master station.
  • the preset threshold value includes a cumulative resource threshold value corresponding to the cumulative resources that need to apply for a buffer, a preset cumulative number threshold value corresponding to the cumulative number of buffer status request information, and end station reporting.
  • the preset probability threshold value corresponding to the probability.
  • reporting condition parameters are generated based on the buffer status request information.
  • the reporting condition parameters include: cumulative resources that need to apply for the buffer, cumulative number of buffer status request information, end station reporting probability, when any reporting parameter satisfies the corresponding
  • control information generated based on the buffer status request information is sent to the master station.
  • the control information includes buffer status request information.
  • the control information is used by the end station to apply for scheduling resources or authorization resources from the master station.
  • a master station connects multiple end stations through satellites for communication. The master station centrally processes and further schedules resources based on the control information content reported by the end station. At the same time, it allocates resources to each end station in the uplink frame.
  • Orderly uploading and avoiding conflicts are particularly important, so it is necessary to Set trigger conditions for the control information reporting of the end station, so that the end station can upload control information in an orderly manner, reduce the collision probability of control information, improve the success rate of control information reporting and the amount of reported data, and ensure that when the reporting probability of the end station is different, There is no major fairness difference between end stations, and the systems can all achieve good reporting capacity.
  • the control information generated according to the buffer status request information is sent to the master station, which is a conventional reporting method in this application.
  • the reporting condition parameters meet the preset threshold value
  • the control information generated based on the buffer status request information is sent to the master station through the control channel.
  • the control channel is a dedicated channel used by each end station in the satellite system to report control information.
  • the end station group it belongs to sends control information in the corresponding control channel time slot.
  • sending the control information generated according to the buffer status request information to the master station will clear the count of the timer in the end station, where, The count of the timer is the time parameter of the end station.
  • the time parameter represents the time interval from the last time the control information was sent to the master station.
  • the time parameter is used to trigger subsequent retransmission reporting and the longest threshold reporting.
  • the buffer status request information is generated according to the buffer status request information.
  • Report condition parameters When the reporting condition parameters meet the preset threshold value, control information generated based on the buffer status request information is sent to the main station to ensure that the end station in the satellite system can be more timely. , Accurately transmit important information such as the buffer status size of the end station in the control information to the main station of the satellite system, complete the buffer status information reporting, reduce the fairness difference between each end station, and improve the accuracy of the buffer status request information Report capacity and reduce information reporting delay.
  • Figure 3 is a flow chart of a method for reporting buffer status request information when the reporting condition parameters proposed by another embodiment of the present application are accumulated resources that need to apply for a buffer.
  • control information generated based on the buffer status request information is sent to the master station, including but not limited to the following steps:
  • Step S310 When the accumulated resources that need to be applied for the buffer are greater than the preset accumulated resource threshold, control information generated based on the buffer status request information is sent to the master station.
  • control information generated based on the buffer status request information is sent to the master station, and the accumulated resources that need to be applied for the buffer are the accumulated newly arrived resources.
  • the buffer status request information size is the sum of the requested buffer sizes of the buffer status request information received by the end station at the current moment after the end station last sent control information. This sum can reflect the end station’s request to the master station. The size of the requested uplink resource. Therefore, the larger the uplink resource requested by the end station from the master station, the more the current end station needs to report control information.
  • Sending the control information generated based on the buffer status request information to the main station can effectively reduce the reporting delay and ensure that the system can achieve better reporting capacity when the reporting probability of the end station is high.
  • Figure 4 is a flow chart of a method for reporting buffer status request information when the reporting condition parameter is the cumulative number of buffer status request information proposed by another embodiment of the present application.
  • control information generated based on the buffer status request information is sent to the master station, including but not limited to the following steps:
  • Step S410 When the number of accumulated buffer status request information is greater than the preset cumulative number threshold, control information generated based on the buffer status request information is sent to the master station.
  • control information generated based on the buffer status request information is sent to the master station, and the accumulated buffer status request information is The number of times is the accumulated number of new buffer status request information, that is, the number of times the end station has received the buffer status request information since the last time the end station sent control information, and the number of requested buffers at the current moment.
  • This number can reflect The number of times the end station needs to request uplink resources from the master station. Therefore, the more times the end station requests uplink resources from the master station, it means that the current end station needs to report control information more.
  • the number of times the accumulated buffer status information is requested is greater than Preset cumulative times threshold
  • sending control information generated based on the buffer status request information to the master station can effectively reduce the reporting delay and ensure that the system can achieve better reporting capacity when the reporting probability of the end station is high.
  • Figure 5 is a flow chart of a method for reporting buffer status request information when the reporting condition parameter is the end station reporting probability proposed by another embodiment of the present application.
  • control information generated based on the buffer status request information is sent to the master station, including but not limited to the following steps:
  • Step S510 When the reporting probability of the end station is less than the preset probability threshold, control information generated based on the buffer status request information is sent to the primary station.
  • the control information generated based on the buffer status request information is sent to the main station.
  • the reporting probability of the end station is before the system performs grouping.
  • Historical data the calculated probability of the end station sending control information to the master station to request resources within a certain period of time
  • the control information reporting probability is proportional to the usage of the end station, so the control information reporting probability parameter represents the end station requesting resources from the master station.
  • the number of uplink resources so the lower the reporting probability of the end station requesting from the master station, the longer the time has elapsed when the front-end station receives the buffer status request information, and the more necessary it is for the front-end station to receive the buffer status request information.
  • sending the control information generated based on the buffer status request information to the main station can effectively reduce the reporting delay and ensure the reporting probability of the end station.
  • the system can achieve better reporting capacity.
  • changes in the cumulative resource threshold, cumulative times threshold, and probability threshold will cause changes in the number of end stations reported in each control channel cycle.
  • priority is given to The cumulative resource threshold, cumulative times threshold, and probability threshold are used to obtain values.
  • the cumulative resource threshold value in this application by setting the cumulative resource threshold value in this application to a maximum value, the size of the accumulated new buffer status request information can be ignored in the process of reporting end station control information; By setting the threshold value to a maximum value, the number of cumulative new buffer status request information can be ignored in the process of reporting end station control information; by setting the probability threshold value in this application to zero, the end station can control information The end station reporting probability is not considered in the reporting process.
  • Figure 6 is a flow chart of the method after receiving the scheduling information in the buffer status request information reporting method proposed by another embodiment of the present application.
  • the method includes: But not limited to the following steps:
  • Step S610 receive the scheduling information sent by the master station
  • Step S620 Send the control information generated according to the buffer status request information to the master station according to the scheduling information.
  • the scheduling information is that the master station receives the end station control information and sends the scheduling resources to the end station only for the end station to report the control information, wherein the master station only sends the scheduling information to the end station, Instead of sending the authorized resources used by the end station for data interaction, this application sends the control generated according to the buffer status request information to the master station according to the scheduling information. Control information, or when the reported condition parameters meet the preset threshold value, control information generated based on the buffer status request information is sent to the master station, and then authorized resources are sent to the end station for data transmission.
  • the scheduling information sent by the master station is received, and the control information generated according to the buffer status request information is sent to the master station according to the scheduling information, which is the entrainment reporting method in this application, where , when receiving the scheduling result from the master station and having new control information, the entrainment report is triggered, the buffer status request information is reported on the scheduling resource sent by the master station, and the timer is cleared, because it is based on the schedule sent by the master station
  • the control information sent by the scheduling resources corresponding to the information will not collide with the control information sent by other end stations on the control channel. Therefore, the embodiment of this application combines the active authorization method and the control channel method in the above embodiments, and the active authorization method is given priority. When authorized to report buffer status request information, there is no competition with other end stations, and information collision will not occur. Secondly, the control channel is used to report buffer status request information to reduce the information reporting delay.
  • this solution receives the scheduling information sent by the master station, and sends the control information generated based on the buffer status request information to the master station based on the scheduling information.
  • the reporting condition parameters are generated according to the buffer status request information.
  • the control information generated based on the buffer status request information is sent to the master station.
  • the end station can adjust the reporting timing by itself, and can adjust the reporting timing under different reporting probabilities. Both can achieve better reporting capacity.
  • Figure 7 is a flow chart of a method for sending control information according to the retransmission effective time in a method for reporting buffer status request information proposed by another embodiment of the present application.
  • the buffer status request information is Reporting methods include but are not limited to the following steps:
  • Step S710 If the scheduling information sent by the master station according to the control information is not received within the preset retransmission effective time, and the control information is not sent to the master station within the retransmission effective time, send the buffer according to the buffer to the master station. Control information generated by status request information.
  • the master station if the scheduling information sent by the master station according to the control information is not received within the preset retransmission validity time, and the control information is not sent to the master station within the retransmission validity time, the master station sends the scheduling information according to the control information to the master station.
  • the control information generated by the buffer status request information triggers the retransmission report, sends the information on the control channel, and sets the timer to a random negative integer.
  • the retransmission report is the end station's judgment after the collision of the reported information. After the preset waiting time, the receiving buffer status request information is reported again, which can effectively reduce the collision probability when reporting the buffer status request information and increase the reporting capacity.
  • the method of reporting buffer status request information also includes: obtaining a random negative integer according to a preset collision time parameter, the sum of the random negative integer and the information collision time parameter being greater than or equal to zero, and modifying the time parameter to a random negative integer.
  • the time parameter represents the time interval from the last time the control information was sent to the master station.
  • the random negative integer is used to avoid the control information of other end stations when other end stations send control information, and reduce the time required to report buffer status request information. collision probability.
  • Figure 8 is a flow chart of a method for sending control information according to a time interval threshold in a method for reporting buffer status request information proposed by another embodiment of the present application.
  • the buffer status request information reporting methods including but not limited to the following steps:
  • Step S810 obtain time parameters
  • Step S820 When the time parameter is equal to the preset time interval threshold, control information generated based on the buffer status request information is sent to the master station.
  • the time parameter is obtained, and when the time parameter is equal to the preset time interval threshold value, the control information generated according to the buffer status request information is sent to the master station, and the longest threshold is reported. Reporting can enable the end station to actively report buffer status request information when the end station is in an abnormal state where it does not receive buffer status request information for a long time, reducing reporting delay and improving communication efficiency.
  • combining the four reporting methods of entrainment reporting, regular reporting, retransmission reporting and longest threshold reporting in this application can enable each end station in the satellite system to report when the reporting probability is high or the reporting probability is low. , can report the control information of the end station in a low-latency and low-collision manner, improving the reporting capacity.
  • Figure 9 is an example diagram of a method for reporting buffer status request information provided in an embodiment of the present application.
  • the method for reporting buffer status request information includes the following steps:
  • Step S902 determine whether the control information of the end station meets the entrainment reporting condition, if so, jump to step S909, if not, jump to step S903;
  • Step S903 determine whether the end station has a new BSR request, if so, jump to step S904, if not, jump to step S905;
  • Step S904 Determine whether the new BSR request meets the regular reporting conditions. If so, jump to step S907; if not, jump to step S905;
  • Step S905 Determine whether the end station meets the retransmission condition. If so, jump to step S908; if not, jump to step S906;
  • Step S906 determine whether the end station meets the longest threshold reporting condition, if so, jump to step S907, if not, jump to step S911;
  • Step S907 the timer is cleared
  • Step S908 the timer is set to a random negative value
  • Step S909 Send reporting information on the scheduling time slot and clear the timer
  • Step S910 Send the reporting information in the control channel
  • Step S911 The timer count is incremented by one, the data is updated, and the next scheduling cycle is entered.
  • the entrainment report is triggered when the master station scheduling result is received and there is new control information, the BSR is reported on the master station scheduling resources, and the timer is cleared, wherein, after passing the master station During the process of mobilizing resources for entrainment reporting, there is no competition between end stations, so information collisions will not occur and the collision probability is low; the conventional reporting is when there is new arrival control information, combined with the cumulative new arrival BSR size, cumulative new arrival The number of BSRs and the reporting probability of the end station are judged. If the corresponding conditions are met, the regular reporting is triggered, the information is sent on the control channel, and the timer is cleared. In the process of the end station actively performing regular reporting, the preset judgment conditions are passed.
  • Retransmission reporting means that after the end station determines that the reported information has collided, it will report BSR again after the preset waiting time, which can effectively reduce The collision probability when reporting BSR increases the reporting capacity; the longest threshold reporting is, when the timer reaches the longest reporting threshold value, the longest threshold reporting is triggered, information is sent on the control channel, and the timer is cleared, the longest Threshold reporting can enable the end station to proactively report BSR when it is in an abnormal state that does not report BSR for a long time, reducing reporting delay and improving communication efficiency.
  • the active authorization method in the control information reporting method of the end station of the satellite communication system, as shown in Table (1), when the end station reporting probability is high (average value 0.2), the active authorization method, the control channel method Compared with the performance of the reporting method of this application scheme, the active authorization method has the best number of successful reports, delay and collision performance, followed by this application scheme and has the highest reporting capacity.
  • the reporting method of this application can adjust the triggering conditions for reporting BSR under different reporting probabilities, and can adjust the triggering conditions for reporting requests from end stations frequently and sparsely. Achieve better system reporting capacity.
  • the embodiment of the present application also provides a controller 1000, which includes: a memory 1020, a processor 1010, and a computer program stored in the memory and executable on the processor.
  • a controller 1000 which includes: a memory 1020, a processor 1010, and a computer program stored in the memory and executable on the processor.
  • the processor 1010 executes the computer program, the following is implemented:
  • the method for reporting buffer status request information in any of the above embodiments for example, performs the above-described method steps S210 to S230 in Figure 2, method step S310 in Figure 3, method step S410 in Figure 4, Figure Method step S510 in 5, method steps S610 to S620 in Fig. 6, method step S710 in Fig. 7, method step S710 in Fig. 8 Method steps S810 to S820 and method steps S901 to S911 in FIG. 9 .
  • the embodiment of the present application also provides a satellite system end station.
  • the satellite system end station includes the above-mentioned controller. Since the satellite system of the embodiment of the present application has the controller of the above-mentioned embodiment, and the control of the above-mentioned embodiment The device can execute the satellite system end station grouping method of the above embodiment. Therefore, the specific implementation manner and technical effects of the satellite system end station of the embodiment of the present invention can be referred to the buffer status request information reporting method of any of the above embodiments. Specific implementation methods and technical effects.
  • an embodiment of the present application also provides a computer-readable storage medium that stores computer-executable instructions, and the computer-executable instructions are executed by one or more control processors, for example, execute The above-described method steps S210 to S230 in Fig. 2, method step S310 in Fig. 3, method step S410 in Fig. 4, method step S510 in Fig. 5, method steps S610 to S620 in Fig. 6, and method steps S610 to S620 in Fig. 7 method step S710, method steps S810 to S820 in Figure 8, and method steps S901 to S911 in Figure 9.
  • Computer storage media includes but is not limited to Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable ROM (EEPROM), flash memory or other memories technology, CD-ROM, Digital Versatile Disk (DVD) or other optical disk storage, magnetic cassette, magnetic tape, disk storage or other magnetic storage device, or any other medium that can be used to store the desired information and can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

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Abstract

本申请公开了一种缓冲区状态请求信息的上报方法、控制器以及存储介质，其中，缓冲区状态请求信息的上报方法应用于卫星通信系统的端站，卫星系统还包括主站，上报方法包括，接收缓冲区状态请求信息，根据缓冲区状态请求信息生成上报条件参数，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息。

Description

缓冲区状态请求信息的上报方法、控制器以及存储介质
交叉引用
本申请要求在2022年06月22日提交中国专利局、申请号为202210712653.7、名称为“缓冲区状态请求信息的上报方法、控制器以及存储介质”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及卫星通信技术领域，具体涉及一种缓冲区状态请求信息的上报方法、控制器以及存储介质。
背景技术
卫星通信系统包括主站和端站，端站需要向主站上报控制信息，告知请求的缓冲区状态请求信息大小等信息，以便于主站进行资源分配；
然而，现有控制信息上报过程中，通过主站主动授权的方式进行上报，存在轮询周期长，控制信息上报时延高的问题，通过控制信道的方式进行上报，则由于同一个控制信道中的多个端站存在竞争关系，存在控制信息碰撞率高的问题，总体导致上报容量低，影响通信效率。
发明内容
本申请实施例提供一种缓冲区状态请求信息的上报方法、控制器以及存储介质，本申请方案能够降低卫星通信系统中各端站的控制信息上报时延，提高上报容量和通信效率。
第一方面，本申请实施例提供了一种缓冲区状态请求信息的上报方法，应用于卫星通信系统的端站，所述卫星系统还包括主站，所述上报方法包括，接收缓冲区状态请求信息，根据所述缓冲区状态请求信息生成上报条件参数，在所述上报条件参数符合预设门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息。
第二方面，本申请实施例提供了一种控制器，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如第 一方面中任意一项实施例所述的缓冲区状态请求信息的上报方法。
第三方面，本申请实施例提供了一种计算机可读存储介质，存储有计算机可执行指令，计算机可执行指令用于执行如第一方面中任意一项实施例所述的缓冲区状态请求信息的上报方法。
附图说明
图1为本申请一实施例提出的卫星系统的示意图；
图2为本申请另一实施例提出的缓冲区状态请求信息的上报方法的流程图；
图3为本申请另一实施例提出的上报条件参数为累计需要申请缓冲区的资源情况下，缓冲区状态请求信息的上报方法的流程图；
图4为本申请另一实施例提出的上报条件参数为累计所述缓冲区状态请求信息的次数情况下，缓冲区状态请求信息的上报方法的流程图；
图5为本申请另一实施例提出的上报条件参数为端站上报概率情况下，缓冲区状态请求信息的上报方法的流程图；
图6为本申请另一实施例提出的缓冲区状态请求信息的上报方法中，接收到调度信息后的方法流程图；
图7为本申请另一实施例提出的缓冲区状态请求信息的上报方法中，根据重传生效时间发送控制信息的方法流程图；
图8为本申请另一实施例提出的缓冲区状态请求信息的上报方法中，根据时间间隔门限值发送控制信息的方法流程图；
图9为本申请另一实施例提出的缓冲区状态请求信息的上报方法的实例图；
图10为本申请另一实施例提出的控制器的结构图。
附图标记：1、主站；2、卫星；3、端站。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
在一些实施例中，虽然在系统示意图中进行了功能模块划分，在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于系统中的模块划分，或流程图中的顺序执行所示出或描述的步骤。说明书和权利要求书及上述附图中的术语第一、第二等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
在卫星通信过程中，端站需要向主站上报控制信息，告知请求的缓冲区状态请求大小等信息，以便于主站进行资源分配。现有控制信息上报方式存在以下问题，当端站的上报概率低时，现有控制信息上报方式存在轮询周期会比较长，控制信息上报延迟高，当端站的上报概率高时，现有控制信息上报方式中同一个控制信道中的多个端站存在竞争关系，比较容易造成碰撞，通信效率低。
为至少解决上述问题，本申请公开了一种缓冲区状态请求信息的上报方法、控制器以及存储介质，其中，缓冲区状态请求信息的上报方法应用于卫星通信系统的端站，卫星系统还包括主站，上报方法包括，接收缓冲区状态请求信息，根据缓冲区状态请求信息生成上报条件参数，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，保证在卫星系统中的端站在上报概率高低不同时，均能更及时、准确的将控制信息中端站的缓冲区状态大小等重要信息传输至卫星系统的主站，完成缓冲区状态信息上报，降低各端站之间的公平性差异，提高缓冲区状态请求信息的上报容量，并降低信息上报时延。
下面结合附图，对本申请实施例作进一步描述。
参考图1，图1为本申请一实施例提出的卫星通信系统的结构示意图。
在一些实施例中，如图1所示，在图1的星型网络结构的卫星通信系统中，主要包含主站1、卫星2、端站3三部分，端站3为需要进行卫星通信的终端，主站1为卫星通信中进行信息处理和调度的控制站，其中主站1起到控制中心的作用，是卫星系统和地面公众网的接口，地面用户可以通过地面站接入卫星系统形成链路；卫星2在空中起中继站的作用，把地面站发上来的电磁波放大后再返回送给另一地面站，为了便于放大、发射及减少变调干扰，星上一般设置若干转发器，每个转发器分配一定的工作频带；端站3包含各种用户终端，如手机、笔记本电脑等。
在一些实施例中，卫星通信系统中，端站3和端站3之间的通信会通过卫星2在主站1处统一处理和转发，主站1控制小区内的所有端站3，端站3之间以两跳互联，同时，进行数据传输的上行链路划分成多个时隙，主站1每个调度周期根据端站3传输和上报情况将上行资源分配给各个端站3，端站3的控制信息也需要得到主站1的调度才能上报，或者是在专用的信道上进行上报。
在一些实施例中，在卫星通信系统中，多个端站3通过卫星2连接主站1进行通信，主站1根据端站3上报的控制信息内容，对资源进行集中处理和进一步的调度，在上行帧中为每个端站3进行资源分配，为了提高上报效率，采用划分时隙的控制信道方法进行端站3控制信息的上报，就是划分出专用的一部分信道资源，并将之划分成多个时隙(包括但不限于从时域、频域划分)。所有端站3也划分成对应数量的端站组，一个端站组内可能包含多个端站3。端站组与控制信道时隙一一对应，同一个端站组内的端站3发送控制信息只能使用自己组对应的控制信道时隙。
在一些实施例中，缓冲区状态请求信息BSR(Buffer Status Report)由端站3发送至主站1，其中，终端设备与接入节点建立连接后，当终端设备需要向接入节点发送上行数据的时候，必须要有上行资源，如果没有上行资源则终端设备需要先向接入节点申请上行资源，在终端设备向接入节点申请上行资源的过程中，需要向接入节点上报缓冲区状态请求信息，以便接入节点为终端设备调度适当的上行资源。
本申请一实施例提出了缓冲区状态请求信息的上报方法的一种主动授权方式，主动授权方式中主站轮询各个端站，在每个上行帧中，依次为各个端站分配资源，并下发资源分配信息。端站在收到分配给自己的调度资源或主动授权资源时，在其上发送控制信息，上报BSR。
在一示例性的实施方式中，主动授权方式的流程步骤包括：
1)判断本周期是否收到主站的调度，收到转到2)，未收到转到3)；
2)在主站分配的时隙资源上发送上报信息，然后转到3)；
3)更新相关数据，进入下一个调度周期，返回1)。
在一些实施例中，主动授权方式的不足之处在于，当端站数量较多、资源有限时，轮询周期会比较长，控制信息上报会存在比较大的延迟；由于信息传递所用的传播时延过大，单纯等待主站调度的方式时效性差；当端站的上报概率较低时，有效上报数减少，上报容量降低，其中，控制信息上报概率为在系统进行分组前，通过历史数据，计算中的在一定时间内端站向主站发送控制信息请求资源的概率，控制信息上报概率和端站的使用情况成正比。
本申请一实施例提出了缓冲区状态请求信息的上报方法的控制信道方式，控制信道方式中端站如果收到高层新到的BSR上报申请，就立即在本次调度周期的控制信道中发送控制信息。
在一示例性的实施方式中，控制信道方式的流程步骤包括：
1)判断是否有新到BSR申请、或等待定时器超时，有新到BSR申请或定时器超时转 到2)，否则转到3)；
2)在控制信道上发送控制信息，等待定时器清零，转到4)；
3)等待定时器数值加一，转达4)；
4)更新相关数据，进入下一个调度周期，返回1)。
在一些实施例中，其中，控制信道方式的不足之处在于：同一个控制信道资源上有多个端站都可以发送上报信息，之间存在竞争关系，比较容易造成碰撞，影响效率；在端站的上报概率较高时，更容易发送碰撞，导致系统其他的性能皆受碰撞概率影响，导致时延变大、上报容量变小。
参考图2，图2为本申请另一实施例提出的缓冲区状态请求信息的上报方法流程图，在一些实施例中，缓冲区状态请求信息的上报方法，包括但不限于以下步骤：
步骤S210，接收缓冲区状态请求信息。
在一些实施例中，接收的缓冲区状态请求信息，为卫星系统中的端站从上层业务层接收到的缓冲区状态请求信息，为新到缓冲区状态请求信息，即当接收到缓冲区状态请求信息时，便会执行本申请中，根据缓冲区状态请求信息生成上报条件参数，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息的方法步骤。
步骤S220，根据缓冲区状态请求信息生成上报条件参数。
在一些实施例中，根据缓冲区状态请求信息生成上报条件参数，上报条件参数包括如下至少之一：累计需要申请缓冲区的资源，累计缓冲区状态请求信息的次数，端站上报概率，其中，由于端站和端站之间的通信不是直接完成的，而是源端站通过卫星先将信息传输到主站，然后由主站通过卫星再将信息传输到目的端站，由于所有端站都会向主站传输数据，导致端站间会发生信息碰撞和冲突，所以本申请通过确定上报条件参数，并设置相应的门限值，保证控制信息上报的触发条件能使控制信息有序上传、避免冲突，提高主站的接收到的有效控制信息的容量。
在一些实施例中，累计需要申请缓冲区的资源为累计新到缓冲区状态请求信息大小，即在端站上一次发送过控制信息后，到当前时刻端站接收到的缓冲区状态请求信息的所请求缓冲区大小的总和；累计缓冲区状态请求信息的次数为累计新到缓冲区状态请求信息次数，即在端站上一次发送过控制信息后，到当前时刻端站接收到缓冲区状态请求信息的次数；端站上报概率为控制信息上报概率为在系统进行分组前，通过历史数据，计算中的在一定时间内端站向主站发送控制信息请求资源的概率；通过以累计需要申请缓冲区的资源，累计缓冲区状态请求信息的次数，端站上报概率之一作为控制信息上报的触发条件，能有 效避免使用相同控制信道时隙的各端站之间发送上报信息碰撞，同时降低上报时延。
步骤S230，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息。
在一些实施例中，预设门限值包括，累计需要申请缓冲区的资源对应的累计资源门限值、累计缓冲区状态请求信息的次数对应的预设的累计次数门限值、端站上报概率对应的预设的概率门限值。
在一些实施例中，根据缓冲区状态请求信息生成上报条件参数，上报条件参数包括：累计需要申请缓冲区的资源，累计缓冲区状态请求信息的次数，端站上报概率，当任意上报参数满足对应的预设门限值时，向主站发送根据缓冲区状态请求信息生成的控制信息，其中，本申请通过综合考虑缓冲区状态请求信息到达次数、到达缓冲区状态请求信息大小、上报概率，联合触发端站进行控制信息上报，能有效避免使用相同控制信道时隙的各端站之间发送上报信息碰撞，同时降低上报时延，保证在端站的上报概率高低不同时，系统都能达到更好的上报容量。
在一些实施例中，在卫星通信系统中，控制信息包括缓冲区状态请求信息，控制信息用于端站向主站申请调度资源或授权资源，一个主站通过卫星连接多个端站进行通信，主站根据端站上报的控制信息内容，对资源进行集中处理和进一步的调度，同时，在上行帧中为每个端站进行资源分配，有序上传、避免冲突就显得尤为重要，故需要对端站的控制信息上报设置触发条件，使端站能有序上传控制信息，降低控制信息的碰撞概率，提高控制信息上报的成功率及上报数据量，保证在端站的上报概率高低不同时，端站之间没有较大的公平性差异，系统均能达到较好的上报容量。
在一些实施例中，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，为本申请中的常规上报方式，在上报条件参数符合预设门限值的情况下，通过控制信道向主站发送根据缓冲区状态请求信息生成的控制信息，其中，控制信道为卫星系统中各端站用于上报控制信息的专用通道，各端站根据所属的端站组，在对应的控制信道时隙发送控制信息。
在一些实施例中，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，会将端站中的定时器的计数清零，其中，定时器的计数为端站的时间参数，时间参数表征与上次向主站发送控制信息的时间间隔，时间参数用于触发后续的重传上报和最长门限上报，通过重传上报和最长门限上报能使端站主动进行缓冲区状态请求信息上报，降低上报时延，提高通信效率。
本申请实施例中，通过接收缓冲区状态请求信息，根据所述缓冲区状态请求信息生成 上报条件参数，在所述上报条件参数符合预设门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息，保证在卫星系统中的端站能更及时、准确的将控制信息中端站的缓冲区状态大小等重要信息传输至卫星系统的主站，完成缓冲区状态信息上报，降低各端站之间的公平性差异，提高缓冲区状态请求信息的上报容量，并降低信息上报时延。
参考图3，图3为本申请另一实施例提出的上报条件参数为累计需要申请缓冲区的资源情况下，缓冲区状态请求信息的上报方法流程图，在一些实施例中，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，包括但不限于以下步骤：
步骤S310，在累计需要申请缓冲区的资源大于预设的累计资源门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息。
在一些实施例中，在累计需要申请缓冲区的资源大于累计资源门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，累计需要申请缓冲区的资源为累计新到缓冲区状态请求信息大小，即在端站上一次发送过控制信息后，到当前时刻端站接收到的缓冲区状态请求信息的所请求缓冲区大小的总和，该总和可以反映端站向主站请求的上行资源的大小，故端站向主站请求的上行资源越大，说明当前端站越需要进行控制信息上报，故在累计需要申请缓冲区的资源大于累计资源门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，能有效的降低上报时延，保证在端站的上报概率高时，系统都能达到较好的上报容量。
参考图4，图4为本申请另一实施例提出的上报条件参数为累计缓冲区状态请求信息的次数情况下，缓冲区状态请求信息的上报方法流程图，在一些实施例中，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，包括但不限于以下步骤：
步骤S410，在累计缓冲区状态请求信息的次数大于预设的累计次数门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息。
在一些实施例中，在累计缓冲区状态请求信息的次数大于预设的累计次数门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，累计缓冲区状态请求信息的次数为累计新到缓冲区状态请求信息的次数，即在端站上一次发送过控制信息后，到当前时刻端站接收到的缓冲区状态请求信息的所请求缓冲区的次数，该次数可以反映端站需要向主站请求的上行资源的次数，故端站向主站请求的上行资源的次数越多，说明当前端站越需要进行控制信息上报，故在累计缓冲区状态请求信息的次数大于预设的累计次数门限 值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，能有效的降低上报时延，保证在端站的上报概率高时，系统都能达到较好的上报容量。
参考图5，图5为本申请另一实施例提出的上报条件参数为端站上报概率情况下，缓冲区状态请求信息的上报方法流程图，在一些实施例中，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，包括但不限于以下步骤：
步骤S510，在端站上报概率小于预设的概率门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息。
在一些实施例中，在端站上报概率小于预设的概率门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，端站上报概率为在系统进行分组前，通过历史数据，计算中的在一定时间内端站向主站发送控制信息请求资源的概率，控制信息上报概率和端站的使用情况成正比，故控制信息上报概率参数代表端站向主站请求的上行资源的次数，故端站向主站请求的上报概率越低，说明当前端站收到缓冲区状态请求信息时经过的时间越长，且当前端站收到缓冲区状态请求信息时越需要上报，故在端站上报概率小于预设的概率门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，能有效的降低上报时延，保证在端站的上报概率低时，系统都能达到较好的上报容量。
在一些实例中，累计资源门限值,累计次数门限值，概率门限值的变化，会引起每个控制信道周期上报端站数量的变化，为了达到系统性能的波峰，优先在波峰处对累计资源门限值,累计次数门限值，概率门限值进行取值。
在一些实例中，将本申请中的累计资源门限值设置为极大值，可以在端站控制信息上报的过程中不考虑累计新到缓冲区状态请求信息大小；将本申请中的累计次数门限值设置为极大值，可以在端站控制信息上报的过程中不考虑累计新到缓冲区状态请求信息次数；将本申请中的概率门限值设置为零，可以在端站控制信息上报的过程中不考虑端站上报概率。
参考图6，图6为本申请另一实施例提出的缓冲区状态请求信息的上报方法中，接收到调度信息后的方法流程图，在一些实施例中，接收缓冲区状态请求信息之后，包括但不限于以下步骤：
步骤S610，接收主站发送的调度信息；
步骤S620，根据调度信息向主站发送根据缓冲区状态请求信息生成的控制信息。
在一些实施例中，调度信息为，主站为接收端站控制信息，而向端站发送的仅用于端站上报控制信息的调度资源，其中，主站仅向端站发送的调度信息，而不发送端站用于数据交互的授权资源，在本申请根据调度信息向主站发送根据缓冲区状态请求信息生成的控 制信息，或在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息后，再发送授权资源至端站用于数据传输。
在一些实施例中，接收缓冲区状态请求信息之后，接收主站发送的调度信息，根据调度信息向主站发送根据缓冲区状态请求信息生成的控制信息，为本申请中的夹带上报方式，其中，在收到主站调度结果、且有新到控制信息时，触发夹带上报，在主站发送的调度资源上上报缓冲区状态请求信息，并清零定时器，由于是根据主站发送的调度信息对应的调度资源发送的控制信息，故不会和其他端站在控制信道发送的控制信息产生碰撞，故本申请实施例结合了上述实施例中的主动授权方式和控制信道方式，优先使用主动授权上报缓冲区状态请求信息，不存在和其他端站的竞争，不会发生信息碰撞，其次使用控制信道上报缓冲区状态请求信息，降低信息上报时延。
在一些实施例中，主动授权方式在上报概率较低时，控制信息的上报数量和上报容量较低，而控制信道方式在上报概率高时，控制信息的碰撞概率将高，导致时延大、上报数量和上报大小也急剧降低，故本方案在接收到缓冲区状态请求信息之后，接收主站发送的调度信息，根据调度信息向主站发送根据缓冲区状态请求信息生成的控制信息，在未接收到主站发送的调度信息情况下，根据缓冲区状态请求信息生成上报条件参数，在上报条件参数符合预设门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，能有效的克服主动授权方式和控制信道方式的缺点，并结合两者的优点，通过在端站处对上报触发条件进行设计，使端站自行调整上报时机，能在不同的上报概率情况下均能达到较好的上报容量。
参考图7，图7为本申请另一实施例提出的缓冲区状态请求信息的上报方法中，根据重传生效时间发送控制信息的方法流程图，在一些实施例中，缓冲区状态请求信息的上报方法，包括但不限于以下步骤：
步骤S710，在预设的重传生效时间内未收到主站根据控制信息发送的调度信息，并且在重传生效时间内未向主站发送控制信息的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息。
在一些实施例中，在预设的重传生效时间内未收到主站根据控制信息发送调度信息，并且在重传生效时间内未向主站发送控制信息的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，触发重传上报，在控制信道上发送信息，并将定时器置位为一个随机负整数，重传上报是端站在判断上报信息发生碰撞之后，在经过预设的等待时间后，再次进行接收缓冲区状态请求信息上报，能有效降低上报缓冲区状态请求信息时的碰撞概率，提高上报容量。
在一些实施例中，缓冲区状态请求信息的上报方法还包括，根据预设的碰撞时间参数得到随机负整数，随机负整数与信息碰撞时间参数的和大于或等于零，将时间参数修改为随机负整数，时间参数表征与上次向主站发送控制信息的时间间隔，随机负整数用于在其他端站发送控制信息时，对其他端站的控制信息进行避让，降低上报缓冲区状态请求信息时的碰撞概率。
参考图8，图8为本申请另一实施例提出的缓冲区状态请求信息的上报方法中，根据时间间隔门限值发送控制信息的方法流程图，在一些实施例中，缓冲区状态请求信息的上报方法，包括但不限于以下步骤：
步骤S810，获取时间参数；
步骤S820，在时间参数等于预设的时间间隔门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息。
在一些实施例中，获取时间参数，在时间参数等于预设的时间间隔门限值的情况下，向主站发送根据缓冲区状态请求信息生成的控制信息，为最长门限上报，最长门限上报能在端站处于长期不进行接收缓冲区状态请求信息上报的异常状态下，使端站主动进行进行缓冲区状态请求信息上报，降低上报时延，提高通信效率。
在一些实施例中，结合本申请中的夹带上报、常规上报、重传上报和最长门限上报四种上报方式，能使卫星系统中的各端站在上报概率高或上报概率低的情况下，均能以低时延、低碰撞的方式对端站的控制信息进行上报，提高上报容量。
参考图9，图9为本申请一实施例中提供的缓冲区状态请求信息的上报方法的实例图，缓冲区状态请求信息的上报方法包括如下步骤：
步骤S901，开始；
步骤S902，判断端站的控制信息是否满足夹带上报条件，若是，则跳转至步骤S909，若否则跳转至步骤S903；
步骤S903，判断端站是否有新到BSR请求，若是，则跳转至步骤S904，若否则跳转至步骤S905；
步骤S904，判断新到BSR请求是否满足常规上报条件，若是，则跳转至步骤S907，若否则跳转至步骤S905；
步骤S905，判断端站是否满足重传条件，若是，则跳转至步骤S908，若否则跳转至步骤S906；
步骤S906，判断端站是否满足最长门限上报条件，若是，则跳转至步骤S907，若否则跳转至步骤S911；
步骤S907，定时器清零；
步骤S908，定时器置位为随机负值；
步骤S909，在调度时隙上发送上报信息,并将定时器清零；
步骤S910，在控制信道中发送上报信息；
步骤S911，定时器计数加一，更新数据，进入下一个调度周期。
在一些实施例中，夹带上报为在收到主站调度结果、且有新到控制信息时，触发夹带上报，在主站调度资源上上报BSR，并清零定时器，其中，在通过主站调动资源进行夹带上报的过程中，各端站之间不存在竞争，故不会发生信息碰撞，碰撞概率低；常规上报为在有新到控制信息时，结合累计新到BSR大小、累计新到BSR次数、端站上报概率进行判断，满足对应条件则触发常规上报，在控制信道上发送信息，并清零定时器，其中，在端站主动进行常规上报的过程中，通过预设的判断条件，降低上报BSR时的碰撞概率，提高上报容量；重传上报为端站在设置的重传生效时间内未收到主站的调度信息，且期间没有触发过BSR上报时，触发重传上报，在控制信道上发送信息，并将定时器置位为一个随机负整数，重传上报是端站在判断上报信息发生碰撞之后，在经过预设的等待时间后，再次进行BSR上报，能有效降低上报BSR时的碰撞概率，提高上报容量；最长门限上报为，当定时器达到最长上报门限值时，触发最长门限上报，在控制信道上发送信息，并清零定时器，最长门限上报能在端站处于长期不进行BSR上报的异常状态时，使端站主动进行BSR上报，降低上报时延，提高通信效率。
在一示例性的实施方式中，在卫星通信系统的端站的控制信息上报方式中，如表(1)所示是端站上报概率较高(均值0.2)时，主动授权方式、控制信道方式和本申请方案上报方式的性能对比，主动授权方式有最佳的成功上报数、时延和碰撞性能，本申请方案紧随其后，并且具有最高的上报容量。
表(1)高上报概率时不同方式的性能对照表
如表(2)所示是端站上报概率较低(均值0.02)时，三种方式的性能对比，主动授权方式具有最好的碰撞性能，但是本申请方案每秒成功上报数、时延性能和上报容量均优于控制信道方案和主动授权方案。
表(2)低上报概率时不同方式的性能对照表
综上，相比于主动授权方式和控制信道方式，本申请方案上报方式在不同的上报概率情况下，能够调整上报BSR的触发条件，在端站的上报请求频繁和稀少的不同情况下都能达到较好的系统上报容量。
参考图10，本申请实施例还提供了一种控制器1000，包括：存储器1020、处理器1010及存储在存储器上并可在处理器上运行的计算机程序,处理器1010执行计算机程序时实现如上述实施例中任意一项的缓冲区状态请求信息的上报方法，例如，执行以上描述的图2中的方法步骤S210至S230、图3中的方法步骤S310、图4中的方法步骤S410、图5中的方法步骤S510、图6中的方法步骤S610至S620、图7中的方法步骤S710、图8中的 方法步骤S810至S820、图9中的方法步骤S901至S911。
此外，本申请实施例的还提供了一种卫星系统端站，该卫星系统端站包括上述的控制器，由于本申请实施例的卫星系统具有上述实施例的控制器，并且上述实施例的控制器能够执行上述实施例的卫星系统端站分组方法，因此，本发明实施例的卫星系统端站的具体实施方式和技术效果，可以参照上述任一实施例的缓冲区状态请求信息的上报方法的具体实施方式和技术效果。
此外，本申请的一实施例还提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机可执行指令，该计算机可执行指令被一个或多个控制处理器执行，例如，执行以上描述的图2中的方法步骤S210至S230、图3中的方法步骤S310、图4中的方法步骤S410、图5中的方法步骤S510、图6中的方法步骤S610至S620、图7中的方法步骤S710、图8中的方法步骤S810至S820、图9中的方法步骤S901至S911。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统可以被实施为软件、固件、硬件及其适当的组合。某些物理组件或所有物理组件可以被实施为由处理器，如总处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于随机存取存储器(Random Access Memory，RAM)、只读存储器(Read Only Memory，ROM)、电可擦只读存储器(Elec trically Erasable Programmable ROM，EEPROM)、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。

Claims (10)

  1. 一种缓冲区状态请求信息的上报方法，应用于卫星通信系统的端站，所述卫星系统还包括主站，所述上报方法包括：
    接收缓冲区状态请求信息；
    根据所述缓冲区状态请求信息生成上报条件参数；
    在所述上报条件参数符合预设门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息。
  2. 根据权利要求1所述的缓冲区状态请求信息的上报方法，其中，所述上报条件参数包括如下至少之一：
    累计需要申请缓冲区的资源；
    累计所述缓冲区状态请求信息的次数；
    端站上报概率。
  3. 根据权利要求2所述的缓冲区状态请求信息的上报方法，其中，所述在所述上报条件参数符合预设门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息，包括：
    在所述累计需要申请缓冲区的资源大于预设的累计资源门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息。
  4. 根据权利要求2所述的缓冲区状态请求信息的上报方法，其中，所述在所述上报条件参数符合预设门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息，包括：
    在所述累计所述缓冲区状态请求信息的次数大于预设的累计次数门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息。
  5. 根据权利要求2所述的缓冲区状态请求信息的上报方法，其中，所述在所述上报条件参数符合预设门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息，包括：
    在所述端站上报概率小于预设的概率门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息。
  6. 根据权利要求1所述的缓冲区状态请求信息的上报方法，其中，所述接收缓冲区状态请求信息之后，还包括：
    接收所述主站发送的调度信息；
    根据所述调度信息向所述主站发送根据所述缓冲区状态请求信息生成的控制信息。
  7. 根据权利要求1至6任意一项所述的缓冲区状态请求信息的上报方法，其中，所述方法还包括：
    在预设的重传生效时间内未收到所述主站根据所述控制信息发送的调度信息，并且在所述重传生效时间内未向所述主站发送所述控制信息的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息。
  8. 根据权利要求1至6任意一项所述的缓冲区状态请求信息的上报方法，其中，所述方法还包括：
    获取所述时间参数；
    在所述时间参数等于预设的时间间隔门限值的情况下，向所述主站发送根据所述缓冲区状态请求信息生成的控制信息。
  9. 一种控制器，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如权利要求1至8中任意一项所述的缓冲区状态请求信息的上报方法。
  10. 一种计算机可读存储介质，存储有计算机可执行指令，计算机可执行指令用于执行如权利要求1至8中任意一项所述的缓冲区状态请求信息的上报方法。
PCT/CN2023/101385 2022-06-22 2023-06-20 缓冲区状态请求信息的上报方法、控制器以及存储介质 Ceased WO2023246773A1 (zh)

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CN101483918A (zh) * 2008-01-08 2009-07-15 华为技术有限公司 缓冲区状态报告的发送方法及其装置
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CN112566265A (zh) * 2019-09-26 2021-03-26 大唐移动通信设备有限公司 一种调度请求触发方法、信息配置方法、终端及网络设备

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CN101483918A (zh) * 2008-01-08 2009-07-15 华为技术有限公司 缓冲区状态报告的发送方法及其装置
CN104144512A (zh) * 2013-05-10 2014-11-12 上海贝尔股份有限公司 支持多连接的上行链路调度信息报告的装置与系统
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