CN117320065A - Method for reporting buffer status request information, controller and storage medium - Google Patents
Method for reporting buffer status request information, controller and storage medium Download PDFInfo
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Abstract
The invention discloses a reporting method, a controller and a storage medium of buffer zone state request information, wherein the reporting method of the buffer zone state request information is applied to an end station of a satellite communication system, the satellite system further comprises a main station, the reporting method comprises the steps of receiving the buffer zone state request information, generating reporting condition parameters according to the buffer zone state request information, sending control information generated according to the buffer zone state request information to the main station under the condition that the reporting condition parameters accord with a preset threshold value, ensuring that the end station in the satellite system can more timely and accurately transmit important information such as the buffer zone state of the end station in the control information to the main station of the satellite system, completing the reporting of the buffer zone state information, reducing fairness difference among the end stations, improving the reporting capacity of the buffer zone state request information and reducing information reporting time delay.
Description
Technical Field
The present disclosure relates to the field of satellite communications technologies, and in particular, to a method, a controller, and a storage medium for reporting buffer status request information.
Background
The satellite communication system comprises a master station and an end station, wherein the end station needs to report control information to the master station and inform the information such as the request information of the buffer area state of the request, so that the master station can conveniently allocate resources;
however, in the existing control information reporting process, the master station actively grants the report, which has the problems of long polling period and high control information reporting time delay, and the control information reporting process is performed by the control channel, so that the problem of high control information collision rate is caused due to the competition relationship of a plurality of end stations in the same control channel, which generally results in low reporting capacity and influences on communication efficiency.
Disclosure of Invention
The embodiment of the application provides a method, a controller and a storage medium for reporting buffer zone state request information, which at least can ensure that the scheme can reduce the reporting time delay of control information of each terminal station in a satellite communication system and improve the reporting capacity and the communication efficiency.
In a first aspect, an embodiment of the present application provides a method for reporting buffer status request information, which is applied to an end station of a satellite communication system, where the satellite system further includes a master station, and the reporting method includes receiving the buffer status request information, generating a reporting condition parameter according to the buffer status request information, and sending control information generated according to the buffer status request information to the master station when the reporting condition parameter meets a preset threshold value.
In a second aspect, an embodiment of the present application provides a controller, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements a method for reporting buffer status request information according to any one of the embodiments of the first aspect when the processor executes the computer program.
In a third aspect, an embodiment of the present application provides a computer readable storage medium, storing computer executable instructions, where the computer executable instructions are configured to perform a method for reporting buffer status request information according to any one of the embodiments of the first aspect.
The application has at least the following beneficial effects: receiving buffer zone state request information, generating reporting condition parameters according to the buffer zone state request information, and sending control information generated according to the buffer zone state request information to a master station under the condition that the reporting condition parameters accord with a preset threshold value, so that the terminal station in a satellite system can more timely and accurately transmit important information such as buffer zone state size of the terminal station in the control information to the master station of the satellite system, reporting the buffer zone state information is completed, fairness difference among the terminal stations is reduced, reporting capacity of the buffer zone state request information is improved, and information reporting delay is reduced.
Drawings
FIG. 1 is a schematic diagram of a satellite system according to an embodiment of the present application;
FIG. 2 is a flowchart of a method for reporting buffer status request information according to another embodiment of the present disclosure;
FIG. 3 is a flowchart of a method for reporting buffer status request information when reporting condition parameters according to another embodiment of the present application are accumulated resources that need to be applied to a buffer;
fig. 4 is a flowchart of a method for reporting the buffer status request information when reporting condition parameters according to another embodiment of the present application are the number of times of accumulating the buffer status request information;
fig. 5 is a flowchart of a method for reporting buffer status request information when reporting condition parameters provided in another embodiment of the present application are reporting probability of an end station;
fig. 6 is a flowchart of a method for reporting buffer status request information after receiving scheduling information according to another embodiment of the present application;
fig. 7 is a flowchart of a method for sending control information according to retransmission effective time in a method for reporting buffer status request information according to another embodiment of the present application;
fig. 8 is a flowchart of a method for sending control information according to a time interval threshold in a method for reporting buffer status request information according to another embodiment of the present application;
FIG. 9 is a diagram illustrating an example of a method for reporting buffer status request information according to another embodiment of the present disclosure;
fig. 10 is a block diagram of a controller according to another embodiment of the present application.
Reference numerals: 1. a master station; 2. a satellite; 3. an end station.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
In some embodiments, although functional block division is performed in a system diagram, logical order is shown in a flowchart, in some cases, steps shown or described may be performed in a different order than block division in a system, or in a flowchart. The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
In the satellite communication process, the end station needs to report control information to the master station, and informs the information such as the request size of the buffer zone state request, so that the master station can conveniently allocate resources. The existing control information reporting mode has the following problems that when the reporting probability of the end station is low, the polling period of the existing control information reporting mode is longer, the control information reporting delay is high, and when the reporting probability of the end station is high, a plurality of end stations in the same control channel in the existing control information reporting mode have a competition relationship, so that collision is easy to cause, and the communication efficiency is low.
In order to at least solve the above problems, the application discloses a method, a controller and a storage medium for reporting buffer status request information, wherein the method for reporting buffer status request information is applied to an end station of a satellite communication system, the satellite system further comprises a main station, the method for reporting buffer status request information is received, reporting condition parameters are generated according to the buffer status request information, and control information generated according to the buffer status request information is sent to the main station when the reporting condition parameters accord with a preset threshold value, so that important information such as buffer status of the end station in the control information can be more timely and accurately transmitted to the main station of the satellite system when reporting probability of the end station in the satellite system is different, reporting of the buffer status information is completed, fairness difference among the end stations is reduced, reporting capacity of the buffer status request information is improved, and information reporting delay is reduced.
Embodiments of the present application are further described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a satellite communication system according to an embodiment of the present application.
In some embodiments, as shown in fig. 1, in the satellite communication system of the star network structure in fig. 1, the satellite communication system mainly includes three parts, namely, a main station 1, a satellite 2 and an end station 3, wherein the end station 3 is a terminal needing to perform satellite communication, the main station 1 is a control station for performing information processing and scheduling in satellite communication, wherein the main station 1 plays a role of a control center and is an interface of the satellite system and a ground public network, and a ground user can access the satellite system through a ground station to form a link; the satellite 2 plays a role of a relay station in the air, amplifies electromagnetic waves sent by the ground station and returns the electromagnetic waves to another ground station, and in order to facilitate amplification, emission and reduction of tone-changing interference, a plurality of transponders are generally arranged on the satellite, and each transponder is allocated with a certain working frequency band; the end station 3 comprises various user terminals such as a mobile phone, a notebook computer, etc.
In some embodiments, in the satellite communication system, communications between the end stations 3 and the end stations 3 are uniformly processed and forwarded at the master station 1 through the satellite 2, the master station 1 controls all the end stations 3 in the cell, the end stations 3 are interconnected in two hops, meanwhile, an uplink for data transmission is divided into a plurality of time slots, each scheduling period of the master station 1 allocates uplink resources to each end station 3 according to the transmission and reporting conditions of the end stations 3, and the control information of the end stations 3 also needs to be scheduled by the master station 1 to be reported, or is reported on a dedicated channel.
In some embodiments, in a satellite communication system, a plurality of end stations 3 are connected to a master station 1 through satellites 2 for communication, the master station 1 performs centralized processing and further scheduling on resources according to the content of control information reported by the end stations 3, performs resource allocation for each end station 3 in an uplink frame, and in order to improve reporting efficiency, adopts a time-slot-divided control channel method to report control information of the end stations 3, namely, divides a part of dedicated channel resources into a plurality of time slots (including but not limited to time-domain and frequency-domain division). All end stations 3 are also divided into a corresponding number of end station groups, one end station group possibly containing a plurality of end stations 3. The end station groups are in one-to-one correspondence with the control channel time slots, and the end stations 3 in the same end station group can only use the control channel time slots corresponding to the end station groups.
In some embodiments, the buffer status request information BSR (Buffer Status Report) is sent to the master station 1 by the end station 3, where after the terminal device establishes a connection with the access node, when the terminal device needs to send uplink data to the access node, uplink resources are required, if there is no uplink resource, the terminal device needs to apply for the uplink resources to the access node first, and in the process that the terminal device applies for the uplink resources to the access node, the buffer status request information needs to be reported to the access node, so that the access node schedules appropriate uplink resources for the terminal device.
An embodiment of the application provides an active authorization mode of a method for reporting buffer status request information, wherein a master station polls each terminal station in the active authorization mode, allocates resources for each terminal station in each uplink frame in sequence, and issues resource allocation information. When receiving the dispatch resource or active authorized resource allocated to the terminal station, the terminal station transmits control information on the dispatch resource or active authorized resource and reports the control information to the BSR.
In an exemplary embodiment, the active authorization method includes the following steps:
1) judging whether the period receives the scheduling of the master station, and receiving and switching to 2), and not receiving and switching to 3);
2) Transmitting report information on the time slot resources allocated by the master station, and then turning to 3);
3) Update related data, enter the next scheduling cycle, return to 1).
In some embodiments, the active authorization method has the disadvantages that when the number of end stations is large and resources are limited, the polling period is relatively long, and a relatively large delay exists in reporting control information; because the propagation time delay used for information transmission is too large, the timeliness of a mode of simply waiting for the master station to dispatch is poor; when the reporting probability of the end station is lower, the effective reporting number is reduced, and the reporting capacity is reduced, wherein the control information reporting probability is the probability that the end station sends control information to the main station to request resources in a certain time in calculation through historical data before the system is grouped, and the control information reporting probability is in direct proportion to the use condition of the end station.
An embodiment of the present application proposes a control channel mode of a method for reporting buffer status request information, in which an end station immediately sends control information in a control channel of a current scheduling period if receiving a BSR report application newly arrived at a higher layer.
In an exemplary embodiment, the flow steps of the control channel mode include:
1) judging whether a new BSR application exists or a timer is waited for overtime, and if the new BSR application exists or the timer overtime, switching to 2), otherwise switching to 3);
2) Transmitting control information on a control channel, waiting for zero clearing of a timer, and turning to 4);
3) Waiting for the timer value to increment by one, and turning to 4);
4) Update related data, enter the next scheduling cycle, return to 1).
In some embodiments, the control channel approach is deficient in that: a plurality of end stations can send reporting information on the same control channel resource, and competition relation exists between the end stations, so that collision is easy to cause, and efficiency is influenced; when the reporting probability of the end station is higher, the end station is easier to send collision, so that other performances of the system are influenced by the collision probability, and the time delay and the reporting capacity become larger.
Referring to fig. 2, fig. 2 is a flowchart of a method for reporting buffer status request information according to another embodiment of the present application, and in some embodiments, the method for reporting buffer status request information includes, but is not limited to, the following steps:
step S210, receiving buffer status request information;
in some embodiments, the received buffer status request information is buffer status request information received by an end station in the satellite system from an upper service layer, and is new buffer status request information, that is, when the buffer status request information is received, a report condition parameter is generated according to the buffer status request information, and if the report condition parameter meets a preset threshold value, the method step of sending control information generated according to the buffer status request information to the master station is executed.
Step S220, generating reporting condition parameters according to the buffer area state request information;
in some embodiments, the reporting condition parameter is generated according to the buffer status request information, and the reporting condition parameter includes at least one of: the method comprises the steps of accumulating resources required to apply for a buffer area, accumulating the times of buffer area state request information, and reporting probability by an end station, wherein, because communication between the end station and the end station is not directly completed, but a source end station firstly transmits information to a master station through a satellite, and then the master station transmits the information to a destination end station through the satellite, and all the end stations can transmit data to the master station, information collision and conflict can occur among the end stations.
In some embodiments, the resource for which the buffer is required to be applied is the total of the buffer size requested by the buffer status request information received by the end station at the current moment after the end station has sent the control information last time; the number of times of accumulating the buffer area state request information is the number of times of accumulating the buffer area state request information which is newly arrived, namely the number of times that the end station receives the buffer area state request information at the current moment after the end station transmits the control information last time; the reporting probability of the end station is the reporting probability of the control information, namely the probability that the end station sends the control information to the master station to request resources in a certain time in calculation through historical data before the system is grouped; by accumulating the resources required to apply for the buffer area and accumulating the times of the buffer area state request information, one of the reporting probabilities of the end stations is used as a triggering condition for reporting the control information, the collision of the reporting information sent between the end stations using the same control channel time slot can be effectively avoided, and the reporting time delay is reduced.
Step S230, when the reporting condition parameter accords with the preset threshold value, the control information generated according to the buffer area state request information is sent to the master station.
In some embodiments, the preset threshold value includes an accumulated resource threshold value corresponding to the resources of the application buffer, an accumulated number threshold value corresponding to the number of times of the accumulated buffer status request information, and a preset probability threshold value corresponding to the reporting probability of the end station.
In some embodiments, the reporting condition parameters are generated according to the buffer status request information, and the reporting condition parameters include: the method comprises the steps of accumulating resources required to apply for a buffer area, accumulating the number of times of buffer area state request information, reporting probability of an end station, and sending control information generated according to the buffer area state request information to a master station when any reporting parameter meets a corresponding preset threshold value, wherein the method and the device comprehensively consider the arrival times of the buffer area state request information, the size of the buffer area state request information and the reporting probability, jointly trigger the end station to report the control information, effectively avoid the collision of the reporting information sent between the end stations using the same control channel time slot, reduce reporting time delay, and ensure that the system can achieve better reporting capacity when the reporting probability of the end stations is different.
In some embodiments, in a satellite communication system, control information includes buffer status request information, where the control information is used by an end station to apply for scheduling resources or authorizing resources to a master station, where one master station communicates with a plurality of end stations through a satellite, where the master station performs centralized processing and further scheduling on resources according to control information contents reported by the end stations, and meanwhile performs resource allocation for each end station in an uplink frame, so that orderly uploading and avoiding collisions are important, and therefore, it is necessary to set a trigger condition for reporting control information of the end station, so that the end station can orderly upload control information, reduce collision probability of control information, improve success rate of reporting control information and report data amount, ensure that when reporting probabilities of the end stations are different, there is no large fairness difference between the end stations, and the system can achieve a good reporting capacity.
In some embodiments, when the reporting condition parameter meets a preset threshold value, control information generated according to the buffer status request information is sent to the master station, which is a conventional reporting mode in the application, and when the reporting condition parameter meets the preset threshold value, the control information generated according to the buffer status request information is sent to the master station through a control channel, wherein the control channel is a dedicated channel used by each end station in the satellite system for reporting the control information, and each end station sends the control information in a corresponding control channel time slot according to the end station group to which the end station belongs.
In some embodiments, when the reporting condition parameter accords with a preset threshold value, control information generated according to buffer zone state request information is sent to the master station, and the count of a timer in the end station is cleared, wherein the count of the timer is a time parameter of the end station, the time parameter represents a time interval between the last time of sending the control information to the master station, the time parameter is used for triggering subsequent retransmission reporting and the longest threshold reporting, and the end station can actively report the buffer zone state request information through the retransmission reporting and the longest threshold reporting, so that reporting time delay is reduced, and communication efficiency is improved.
Referring to fig. 3, fig. 3 is a flowchart of a reporting method of buffer status request information in the case that reporting condition parameters are accumulated resources requiring a buffer area application according to another embodiment of the present application, and in some embodiments, in the case that the reporting condition parameters meet a preset threshold value, control information generated according to the buffer status request information is sent to a master station, including but not limited to the following steps:
step S310, under the condition that the resources of the accumulated request buffer are larger than a preset accumulated resource threshold value, control information generated according to the buffer status request information is sent to the master station.
In some embodiments, when the accumulated resources required to apply for the buffer area are greater than the accumulated resource threshold, control information generated according to the buffer area state request information is sent to the master station, where the accumulated resources required to apply for the buffer area are the accumulated new buffer area state request information, that is, after the end station has sent the control information last time, the sum of the requested buffer area sizes of the buffer area state request information received by the end station at the current moment can reflect the size of uplink resources requested by the end station to the master station, so that the greater the uplink resources requested by the end station to the master station, the more the current end station needs to report the control information, so that when the accumulated resources required to apply for the buffer area are greater than the accumulated resource threshold, the control information generated according to the buffer area state request information is sent to the master station, so that reporting time delay can be effectively reduced, and when reporting probability of the end station is high, the system can achieve better reporting capacity.
Referring to fig. 4, fig. 4 is a flowchart of a method for reporting buffer status request information when reporting condition parameters are the number of times of accumulating the buffer status request information according to another embodiment of the present application, and in some embodiments, when reporting condition parameters meet a preset threshold value, control information generated according to the buffer status request information is sent to a master station, including but not limited to the following steps:
step S410, when the number of times of the accumulated buffer status request information is greater than a preset accumulated number threshold value, control information generated according to the buffer status request information is sent to the master station.
In some embodiments, when the number of times of accumulating the buffer status request information is greater than a preset accumulation number threshold, control information generated according to the buffer status request information is sent to the master station, and the number of times of accumulating the buffer status request information is the number of times of accumulating the buffer status request information, that is, the number of times of accumulating the buffer status request information requested by the buffer status request information received by the end station at the current moment after the end station has sent the control information last time, the number of times can reflect the number of times of uplink resources required to be requested by the end station to the master station, so that the more the number of times of uplink resources required by the end station to the master station indicates that the more the current end station needs to report the control information, so that when the number of times of accumulating the buffer status request information is greater than the preset accumulation number threshold, the control information generated according to the buffer status request information is sent to the master station, the reporting delay can be effectively reduced, and the system can achieve better reporting capacity when the reporting probability of the end station is high.
Referring to fig. 5, fig. 5 is a flowchart of a method for reporting buffer status request information when reporting condition parameters are reporting probability of an end station according to another embodiment of the present application, and in some embodiments, when reporting condition parameters meet a preset threshold, control information generated according to the buffer status request information is sent to a master station, including but not limited to the following steps:
step S510, under the condition that the reporting probability of the end station is smaller than a preset probability threshold value, control information generated according to the buffer area state request information is sent to the master station.
In some embodiments, when the reporting probability of the end station is smaller than a preset probability threshold value, control information generated according to the buffer status request information is sent to the master station, the reporting probability of the end station is calculated by historical data before the system performs grouping, the probability of sending control information request resources to the master station at a certain time in the calculation is proportional to the use condition of the end station, so that the control information reporting probability parameter represents the number of times of the uplink resources requested by the end station to the master station, the lower the reporting probability of the end station to the master station is, the longer the time when the current end station receives the buffer status request information is indicated, and the more needed to report when the current end station receives the buffer status request information is sent to the master station, so that the control information generated according to the buffer status request information can be effectively reduced in reporting time delay when the reporting probability of the end station is smaller than the preset probability threshold value, and the system can achieve better reporting capacity when the reporting probability of the end station is low.
In some examples, the change of the accumulated resource threshold value, the accumulated time threshold value and the probability threshold value can cause the change of the number of reporting end stations in each control channel period, and in order to achieve the peak of the system performance, the accumulated resource threshold value, the accumulated time threshold value and the probability threshold value are preferably valued at the peak.
In some examples, the accumulated resource threshold value is set to be the maximum value, so that the size of the accumulated buffer status request information is not considered in the process of reporting the control information of the end station; the accumulated time threshold value is set as a maximum value, so that the accumulated time of the state request information of the buffer area is not considered in the process of reporting the control information of the end station; the probability threshold value in the method is set to be zero, and the reporting probability of the end station can be not considered in the process of reporting the control information of the end station.
Referring to fig. 6, fig. 6 is a flowchart of a method for reporting buffer status request information according to another embodiment of the present application after receiving scheduling information, and in some embodiments, after receiving the buffer status request information, the method includes, but is not limited to, the following steps:
step S610, receiving scheduling information sent by a master station;
step S620, control information generated according to the buffer status request information is transmitted to the master station according to the scheduling information.
In some embodiments, the scheduling information is scheduling resources which are sent to the end station and are only used for reporting control information by the end station, wherein the master station only sends scheduling information to the end station and does not send authorized resources for data interaction by the end station.
In some embodiments, after receiving the buffer status request information, receiving the scheduling information sent by the master station, sending control information generated according to the buffer status request information to the master station according to the scheduling information, where the method is an entrainment reporting mode in the application, when a master station scheduling result is received and there is new control information, triggering entrainment reporting, reporting the buffer status request information on a scheduling resource sent by the master station, and clearing a timer.
In some embodiments, when the reporting probability of the active authorization mode is lower, the reporting quantity and the reporting capacity of the control information are lower, and when the reporting probability of the control channel mode is higher, the collision probability of the control information is higher, so that the time delay is large, the reporting quantity and the reporting size are also sharply reduced.
Referring to fig. 7, fig. 7 is a flowchart of a method for transmitting control information according to retransmission effective time in a method for reporting buffer status request information according to another embodiment of the present application, and in some embodiments, the method for reporting buffer status request information includes, but is not limited to, the following steps:
step S710, in the case that 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 generated according to the buffer status request information is sent to the master station in the case that the control information is not sent to the master station within the retransmission effective time.
In some embodiments, when the master station does not receive the scheduling information according to the control information within the preset retransmission effective time, and when the control information is not transmitted to the master station within the retransmission effective time, the control information generated according to the buffer status request information is transmitted to the master station, retransmission reporting is triggered, the information is transmitted on the control channel, a timer is set to be a random negative integer, and the retransmission reporting is that after the end station judges that the reporting information collides, the buffer status request information is received again after the preset waiting time elapses, so that the collision probability when the buffer status request information is reported can be effectively reduced, and the reporting capacity is improved.
In some embodiments, the method for reporting the buffer status request information further includes obtaining a random negative integer according to a preset collision time parameter, where the sum of the random negative integer and the information collision time parameter is greater than or equal to zero, modifying the time parameter to the random negative integer, characterizing a time interval between the time parameter and the last time of sending the control information to the master station, where the random negative integer is used to avoid the control information of other end stations when sending the control information to other end stations, and reducing collision probability when reporting the buffer status request information.
Referring to fig. 8, fig. 8 is a flowchart of a method for sending control information according to a time interval threshold in a method for reporting buffer status request information according to another embodiment of the present application, and in some embodiments, the method for reporting buffer status request information includes, but is not limited to, the following steps:
step S810, obtaining a time parameter;
step S820, in case that 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.
In some embodiments, a time parameter is acquired, and control information generated according to buffer status request information is sent to a master station to report for a longest threshold under the condition that the time parameter is equal to a preset time interval threshold value, and the longest threshold report enables the terminal station to actively report the buffer status request information when the terminal station is in an abnormal state of not receiving the buffer status request information report for a long time, so that reporting delay is reduced, and communication efficiency is improved.
In some embodiments, four reporting modes of carrying reporting, conventional reporting, retransmission reporting and longest threshold reporting in the application are combined, so that each terminal station in the satellite system can report control information of the terminal station in a low-delay and low-collision mode under the condition of high reporting probability or low reporting probability, and reporting capacity is improved.
Referring to fig. 9, fig. 9 is an example diagram of a method for reporting buffer status request information according to an embodiment of the present application, where the method for reporting buffer status request information includes the following steps:
step S901, start;
step S902, judging whether the control information of the end station meets the entrainment report condition, if yes, jumping to step S909, otherwise jumping to step S903;
step S903, judging whether the end station has a new BSR request, if yes, jumping to step S904, if not, jumping to step S905;
step S904, judging whether the new BSR request meets the conventional reporting condition, if yes, jumping to step S907, otherwise jumping to step S905;
step S905, judging whether the end station meets the retransmission condition, if yes, jumping to step S908, otherwise jumping to step S906;
step S906, judging whether the terminal station meets the longest threshold reporting condition, if yes, jumping to step S907, otherwise jumping to step S911;
step S907, resetting a timer;
step S908, the timer is set to a random negative value;
step S909, transmitting report information on the dispatching time slot, and resetting the timer;
step S910, send report information in the control channel;
in step S911, the timer counts up by one to update the data and enter the next scheduling period.
In some embodiments, the entraining report is that when a main station scheduling result is received and new control information is arrived, the entraining report is triggered, a BSR is reported on main station scheduling resources, and a timer is cleared, wherein in the process of entraining report by the main station scheduling resources, no competition exists among all the end stations, so that no information collision occurs and the collision probability is low; the regular reporting is that when the new control information exists, the size of the accumulated new BSR, the number of times of accumulated new BSR and the reporting probability of the end station are combined to judge, the regular reporting is triggered when the corresponding conditions are met, the information is sent on a control channel, and the timer is cleared, wherein in the process of the regular reporting of the end station, the collision probability when the BSR is reported is reduced and the reporting capacity is improved through the preset judging conditions; the retransmission report is that the end station does not receive the scheduling information of the main station in the set retransmission effective time, and when the BSR report is not triggered in the period, the retransmission report is triggered, the information is sent on a control channel, a timer is set as a random negative integer, and after judging that the reported information collides, the end station reports the BSR again after the preset waiting time, so that the collision probability when reporting the BSR can be effectively reduced, and the reporting capacity is improved; and the longest threshold reporting is that when the timer reaches the longest reporting threshold value, the longest threshold reporting is triggered, information is sent on a control channel, the timer is cleared, and the longest threshold reporting can enable the terminal station to actively carry out BSR reporting when the terminal station is in an abnormal state of long-term non-BSR reporting, thereby reducing reporting time delay and improving communication efficiency.
In an exemplary embodiment, in a control information reporting manner of an end station of a satellite communication system, as shown in table (1), when reporting probability of the end station is higher (average value 0.2), performance of an active authorization manner, a control channel manner and a reporting manner of the present application scheme is compared, and the active authorization manner has the best successful reporting number, time delay and collision performance, and the present application scheme is immediately after and has the highest reporting capacity.
Table (1) Performance control Table of different modes at high reporting probability
As shown in table (2), when the reporting probability of the end station is low (average value 0.02), the performance of the three modes is compared, the control channel mode has the highest reporting capacity, the active authorization mode has the best time delay and collision performance, but the successful reporting number per second is the highest, and the time delay and the reporting capacity are only slightly different from the optimal value.
Table (2) Performance control Table of different modes at Low reporting probability
In summary, compared with the active authorization mode and the control channel mode, the reporting mode in the scheme can adjust the triggering condition of reporting the BSR under different reporting probability conditions, and can achieve better system reporting capacity under different conditions of frequent and rare reporting requests of the end station.
Referring to fig. 10, the embodiment of the present application further provides a controller 1000, including: the memory 1020, the processor 1010 and a computer program stored on the memory and executable on the processor, when the processor 1010 executes the computer program, the method for reporting the buffer status request information according to any one of the above embodiments is implemented, for example, executing the method steps S210 to S230 in fig. 2, the method step S310 in fig. 3, the method step S410 in fig. 4, the method step S510 in fig. 5, the method steps S610 to S620 in fig. 6, the method step S710 in fig. 7, the method steps S810 to S820 in fig. 8, and the method steps S901 to S911 in fig. 9 described above.
In addition, the embodiment of the present application further provides a satellite system end station, where the satellite system end station includes the controller, and since the satellite system of the embodiment of the present application has the controller of the embodiment of the present application and the controller of the embodiment of the present application is capable of executing the satellite system end station grouping method of the embodiment of the present application, the specific implementation and technical effects of the satellite system end station of the embodiment of the present application may refer to the specific implementation and technical effects of the buffer status request information reporting method of any embodiment of the present application.
Furthermore, an embodiment of the present application provides a computer-readable storage medium storing computer-executable instructions for execution by one or more control processors, for example, performing the above-described method steps S210 to S230 in fig. 2, the method step S310 in fig. 3, the method step S410 in fig. 4, the method step S510 in fig. 5, the method steps S610 to S620 in fig. 6, the method step S710 in fig. 7, the method steps S810 to S820 in fig. 8, and the method steps S901 to S911 in fig. 9.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a general processor, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, 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 includes any information delivery media.
Claims (10)
1. The method for reporting the buffer zone state request information is applied to an end station of a satellite communication system, and the satellite system also comprises a main station, and the method for reporting comprises the following steps:
receiving buffer status request information;
generating reporting condition parameters according to the buffer area state request information;
and under the condition that the reporting condition parameter accords with a preset threshold value, sending control information generated according to the buffer zone state request information to the master station.
2. The method for reporting buffer status request information according to claim 1, wherein the reporting condition parameters include at least one of:
accumulating resources needing to apply for a buffer area;
accumulating the times of the buffer area state request information;
the end station reports the probability.
3. The method for reporting the buffer status request information according to claim 2, wherein, when the reporting condition parameter meets a preset threshold value, sending control information generated according to the buffer status request information to the master station includes:
and under the condition that the resources of the accumulated required application buffer area are larger than a preset accumulated resource threshold value, sending control information generated according to the buffer area state request information to the master station.
4. The method for reporting the buffer status request information according to claim 2, wherein, when the reporting condition parameter meets a preset threshold value, sending control information generated according to the buffer status request information to the master station includes:
and under the condition that the number of times of accumulating the buffer area state request information is larger than a preset accumulated number threshold value, sending control information generated according to the buffer area state request information to the master station.
5. The method for reporting the buffer status request information according to claim 2, wherein, when the reporting condition parameter meets a preset threshold value, sending control information generated according to the buffer status request information to the master station includes:
and under the condition that the reporting probability of the end station is smaller than a preset probability threshold value, sending control information generated according to the buffer area state request information to the master station.
6. The method for reporting the buffer status request information according to claim 1, further comprising, after receiving the buffer status request information:
receiving scheduling information sent by the master station;
and sending control information generated according to the buffer status request information to the master station according to the scheduling information.
7. The method for reporting buffer status request information according to any one of claims 1 to 6, further comprising:
and when 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 generated according to the buffer status request information is sent to the master station under the condition that the control information is not sent to the master station within the retransmission effective time.
8. The method for reporting buffer status request information according to any one of claims 1 to 6, further comprising:
acquiring the time parameter;
and under the condition that the time parameter is equal to a preset time interval threshold value, sending control information generated according to the buffer zone state request information to the master station.
9. A controller comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of reporting buffer status request information according to any one of claims 1 to 8 when executing the computer program.
10. A computer-readable storage medium storing computer-executable instructions for performing the method of reporting buffer status request information as claimed in any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210712653.7A CN117320065A (en) | 2022-06-22 | 2022-06-22 | Method for reporting buffer status request information, controller and storage medium |
| PCT/CN2023/101385 WO2023246773A1 (en) | 2022-06-22 | 2023-06-20 | Buffer status request information reporting method, controller and storage medium |
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| CN202210712653.7A CN117320065A (en) | 2022-06-22 | 2022-06-22 | Method for reporting buffer status request information, controller and storage medium |
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| CN101483918B (en) * | 2008-01-08 | 2011-11-23 | 华为技术有限公司 | Buffer condition report sending method and apparatus thereof |
| CN104144512B (en) * | 2013-05-10 | 2017-09-08 | 上海贝尔股份有限公司 | Support the device and system of multi-link uplink scheduling information report |
| GB2552192A (en) * | 2016-07-13 | 2018-01-17 | Canon Kk | Method and apparatus for managing quantity of data to be transmitted in a wireless network |
| CN112566265B (en) * | 2019-09-26 | 2022-08-12 | 大唐移动通信设备有限公司 | Scheduling request triggering method, information configuration method, terminal and network equipment |
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