CN111835409B - Method for controlling work flow and signaling frame design of beam hopping satellite system along with service - Google Patents

Method for controlling work flow and signaling frame design of beam hopping satellite system along with service Download PDF

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CN111835409B
CN111835409B CN202010677854.9A CN202010677854A CN111835409B CN 111835409 B CN111835409 B CN 111835409B CN 202010677854 A CN202010677854 A CN 202010677854A CN 111835409 B CN111835409 B CN 111835409B
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service
hopping
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beam hopping
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CN111835409A (en
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张晨
杨江涛
张更新
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Nanjing Microstar Communication Technology Co ltd
Nanjing University of Posts and Telecommunications
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Nanjing Microstar Communication Technology Co ltd
Nanjing University of Posts and Telecommunications
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
    • H04B7/18543—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for adaptation of transmission parameters, e.g. power control

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Abstract

The invention discloses a method for controlling the working process of a beam hopping satellite system along with service and designing a signaling frame, which comprises the following steps: 1. the system control signaling is sent through service beams, and the operations of user synchronization, network access, beam hopping resource application and the like are completed through wave position polling when a certain service demand area is served for the first time; 2. the network control center establishes a target function facing to resource global scheduling and flexible allocation; 3. solving the objective function in the step 2; 4. setting parameters of a wave beam hopping period and wave beam residence time, and generating a wave beam hopping time schedule by utilizing the time slot number of the wave beam; 5. completing framing of the BHTP signaling frame; 6. the satellite and the user demodulate BHTP signaling to complete satellite-ground integrated beam synchronous hopping; 7. and the user transmits the service and completes the service application of the next beam hopping period. The invention does not need a control beam configured independently, avoids the extra expense brought by the resynchronization of the user in the beam hopping period, and improves the utilization rate of the system time slot resources.

Description

Method for controlling work flow and signaling frame design of beam hopping satellite system along with service
Technical Field
The invention provides a satellite communication system working flow design scheme based on beam hopping, and belongs to the field of satellite communication. The method mainly relates to a working process under the scene that control signaling follows service beams in a Beam Hopping satellite, and optimization design of a Beam Hopping rule and a Beam Hopping Time Plan (BHTP) signaling frame structure under the working process.
Background
The communication satellite can increase the capacity by increasing the number of spot beams, however, the traditional method of allocating fixed resources to each beam by the multi-beam satellite allocates available resources within a single beam, and the non-uniformity of the user service requirements causes system resource waste, which limits the increase of the system throughput. Research work on beam hopping theories and technologies in recent years shows that the beam hopping technology greatly improves the utilization rate of satellite resources, can realize efficient utilization of the satellite resources, and is increasingly applied.
The beam, frequency and time resources which can be utilized by the user in the beam hopping system are dynamically changed, and the beam hops along with the time, so that the working processes of user access, resource application, synchronization and the like become inevitable key problems in system design. Most of the existing beam hopping designs adopt an access mode with separated control and service, and each satellite node needs to be equipped with two types of beams, namely a global control beam with wide coverage and a service spot beam with narrow coverage. Wherein, the control wave beam is fixedly pointed and used for transmitting system control signaling; the service beam dynamically adjusts the resources among the beams according to the system, and provides high-speed data transmission for the user. However, in this access method, the system needs to separately configure a control beam of the wide area coverage for transmitting control signaling, which results in a large increase in the satellite load and the amount of terminal equipment. In order to reduce the construction cost of the satellite system, a new control-service workflow needs to be designed, and a beam hopping rule and a corresponding BHTP control signaling under the new workflow are designed.
Disclosure of Invention
The invention aims to: aiming at the problem of large satellite load and terminal equipment quantity in the existing interactive mode of beam hopping system control and service separation, the beam hopping satellite system working process for controlling the beams along with the service and the BHTP signaling design method under the process are provided, so that the beam hopping satellite system equipment quantity is reduced, the extra overhead brought by the resynchronization of a user in a beam hopping period is avoided, the time slot resource utilization rate of the system is improved, and the service requirement of the user is met.
The technical scheme of the invention is as follows: the system control signaling follows the service beam, and completes operations such as user synchronization, network access, beam hopping resource application and the like through a wave position polling step when a certain service demand area is served for the first time; establishing a target function facing to resource global scheduling and flexible allocation according to the service application of each user, and solving the time slot resource allocated to each beam by using a convex optimization algorithm; setting parameters of wave beam hopping period and wave beam residence time, and setting wave beam revisiting time TRVIn conjunction with the maximum holding time T of the user terminal synchronisationDAccording to TRV≤TDA rule, generating a Beam Hopping Time Plan (BHTP) table by using the time slot number of the beam; completing framing of the BHTP signaling frame; the satellite and the user demodulate BHTP signaling to complete synchronous hopping of satellite-ground integrated beams; and the user transmits the service and completes the service application of the next beam hopping period.
The method comprises the following specific steps:
step 1: the system control signaling is sent through service beams, and the operations of user synchronization, network access, beam hopping resource application and the like are completed through wave position polling when a certain service demand area is served for the first time.
Step 2: after the user accesses the system, a Network Control Center (NCC) establishes a target function facing to resource global scheduling and flexible allocation according to the service application of each user.
Comprehensively considering the resources of time slots, frequency spectrums, power and the like, so that each beam i has the capacity as close as possible to the required capacity
Figure GDA0003348487610000021
Capacity value R ofi. In order to satisfy the dynamic change of the user service as much as possible and improve the resource utilization rate, the following n-order difference function can be established:
Figure GDA0003348487610000022
Figure GDA0003348487610000023
Figure GDA0003348487610000024
Figure GDA0003348487610000025
wherein the content of the first and second substances,
Figure GDA0003348487610000026
for the total traffic demand of the beam, RiIn order to be able to provide the value of the capacity,
Figure GDA0003348487610000027
the number of time slots allocated for each beam,
Figure GDA0003348487610000028
the number of beams which can work in one time slot at most simultaneously is N, the total time slot length is N, and the number of system beams is K.
And step 3: solving the optimal integer solution of the objective function in the step 2 by utilizing a convex optimization algorithm, namely the optimal time slot number allocated to each beam
Figure GDA0003348487610000029
And 4, step 4: setting parameters of wave beam hopping period and wave beam residence time, and setting wave beam revisiting time TRVIn conjunction with the maximum holding time T of the user terminal synchronisationDAccording to TRV≤TDThe method of (1) generates a Beam Hop Time Plan (BHTP) table using the number of slots of the beam.
And 5: framing of the BHTP signaling frame is completed. The BHTP frame includes fields of a group ID, a channel ID, a beam hopping cycle length, a beam hopping cycle number, a slot length, an allocation slot number, and a beam hopping slot number. BHTP signaling carries the resource allocation situation of the system to the user's beam hopping time slot through these fields, and the satellite also uses this signaling to complete the synchronous switch of the beam.
Step 6: and demodulating BHTP signaling by the satellite and the user to complete satellite-ground integrated beam synchronous hopping.
And 7: and the user transmits the service and completes the service application of the next beam hopping period.
Compared with the prior art, the invention has the following advantages:
the invention provides a feasible scheme for the working process of a satellite communication system based on beam hopping, the working process of following the service beam by designing the control signaling does not need a separately configured control beam, system equipment is simplified, extra expenses caused by resynchronization of a user in a beam hopping period are avoided by setting the beam revisiting time and the corresponding beam hopping control signaling, the utilization rate of system time slot resources is improved, and the service requirement of the user is met.
Drawings
FIG. 1 is a flow chart of an implementation of the present invention;
fig. 2 is a schematic diagram of controlling access with a traffic beam;
FIG. 3 is a diagram of beam hopping period and beam dwell time parameters;
FIG. 4 is a structural diagram of a BHTP signaling frame designed in the present invention;
fig. 5 is a graph of capacity versus time system with and without beam revisit.
Detailed Description
Referring to fig. 1, the specific implementation steps of the present invention are as follows:
step 1, system control signaling is sent through service beams, and when a certain service demand area is served for the first time, operations such as user synchronization, network access, beam hopping resource application and the like are formed through wave position polling.
The invention designs a strategy for controlling the service-following wave beam, and the uplink and downlink control signaling follows the jumping service wave beam to complete the functions of synchronization, network access, system broadcasting, resource application of the jumping wave beam and the like. Specifically, when a system first services a service demand area, its service beam polls all the wave bits in each area. The service beam carries out jumping polling on each wave position in sequence, and the residence time of each wave position is the same; in the residence time of each wave position, the satellite completes control signaling such as system information broadcasting, management control, channel allocation, burst parameter setting and the like through a downlink; and the users in the beam coverage range complete the operations of acquisition, synchronization, resource application and the like, and establish connection with the satellite and the gateway station. The access control with the service beam is illustrated in fig. 2.
And 2, after the user accesses the system, a Network Control Center (NCC) establishes a target function facing to resource global scheduling and flexible allocation according to the service application of each user.
Comprehensively considering the resources of time slots, frequency spectrums, power and the like, so that each beam i has the capacity as close as possible to the required capacity
Figure GDA0003348487610000041
Capacity value R ofi. In order to satisfy the dynamic change of the user service as much as possible and improve the resource utilization rate, the following n-order difference function can be established:
Figure GDA0003348487610000042
Figure GDA0003348487610000043
Figure GDA0003348487610000044
Figure GDA0003348487610000045
wherein the content of the first and second substances,
Figure GDA0003348487610000046
for the total traffic demand of the beam, RiIn order to be able to provide the value of the capacity,
Figure GDA0003348487610000047
the number of time slots allocated for each beam,
Figure GDA0003348487610000048
the number of beams which can work in one time slot at most simultaneously is N, the total time slot length is N, and the number of system beams is K. The best solution of equation (5) is found under the constraints of power allocation, timeslot allocation and traffic demand.
Step 3, solving the optimal integer solution of the objective function in the step 2 by utilizing a convex optimization algorithm, namely the optimal time slot number allocated to each wave beam
Figure GDA0003348487610000049
The objective function (5) is a convex function, and if a dual variable λ is introduced to the constraint (7), the lagrangian function can be obtained as follows:
Figure GDA00033484876100000410
according to KKT condition and duality analysis, derivation is carried out on formula (9) to order
Figure GDA00033484876100000411
Comprises the following steps:
Figure GDA00033484876100000412
due to the fact that
Figure GDA0003348487610000051
Simultaneous (10) can be obtained:
Figure GDA0003348487610000052
the number of slots for which a beam can be obtained by substituting equation (11) for equation (10) is:
Figure GDA0003348487610000053
constraint (8) indicates that the number of slots allocated to a beam is an integer, and considering that the satellite system is a power-limited system, the integer number of slots allocated to a beam can be obtained by rounding down the result of equation (12).
In the present invention, the order of the difference objective function may be 2, that is, n is 2 in the above formula. After calculating the time slot number, the capacity of beam allocation can be obtained
Figure GDA0003348487610000054
BtotFor beam bandwidth, γi、γkIs the signal to interference plus noise ratio of the beams i, k.
Step 4, setting parameters of wave beam hopping period and wave beam residence time, and setting wave beam revisiting time TRVAccording to TRV≤TDA rule generates a Beam Hop Time Plan (BHTP) table in conjunction with the number of slots of the beam.
Fig. 3 is a schematic diagram illustrating the setting of the beam hopping period and the beam dwell time parameters, where the parameters are set as follows:
1) beam Hopping Slot (BHS): BHS, also known as beam Dwell Time (Dwell Time), refers to the minimum duration of Time allocated to a beam. The number of time slots allocated to each beam may be based on QoS or capacity requirements. BHS is used as a time carrier for physical frames, typically in the order of milliseconds.
2) Beam hopping Period (Beam Hop Period, BHP): the time required to traverse the assigned BHS sequence once.
3) Slot Switch time (SS): also called guard time, which physically means the time delay required for one beam to switch to another, typically in the order of microseconds. The handover may be performed after each BHS or after multiple BHSs (there may be multiple BHSs for one beam). A dummy symbol block may be set at the end of the traffic frame for switching protection.
4) Beam revisit time: the interval time between BHS resource blocks allocated to a certain beam; when a beam is allocated multiple BHSs during one beam hopping period, the beam revisit time is reduced. Due to the too large beam revisit time, the synchronization of the user terminal is affected. Even if a certain beam has no service requirement (beam in non-hotspot region) in a specific beam-hopping period, a BHS should be allocated in the period, and signaling such as synchronization, broadcast and the like is sent in the time slot.
5) Hop Number (Hop Number, HN): also called as the hop beam slot number, HN is the numerical identifier of the BHS, HN value of the first BHS at the beginning of the BHP is 1; at the end of each BHP, HN is reinitialized to 1; when used in pairs with a beam identifier, the HN may serve as a unique identifier;
6) beam hopping Time Plan (BeamHopping Time Plan, BHTP): the time slicing transmission plan for resource dynamic allocation comprises parameters such as BHS, BHP, RVT, HN serial number and bandwidth allocated by each beam, carrier frequency and the like. BHTP considers the user application, service prediction, service awareness, system resources, and other comprehensive factors, is generated in advance by the NCC or service provider, and is sent to the satellite and ground systems.
The number of BHS allocated to each beam can be obtained by the time slot allocation algorithm in the steps 2 and 3; the BHS allocated to each beam can be divided into a hot spot area beam and a non-hot spot area beam according to the sequence of the beam hopping periodRV≤TDRules are obtained, specifically:
1) hot spot area beam: the system allocates a corresponding number of BHS to the wave beam of the hot spot area according to the service application of each user and the resource allocation algorithm of the steps 2 and 3 so as to complete the service;
2) beam of non-hotspot region: the effect of beam revisit time is taken into account. This is because when the revisit time is too long, the synchronization of the user terminal is affected, so even if there is no service requirement for the beam in the non-hotspot region in a specific beam hopping period, at least one BHS should be allocated in the period, and signaling such as synchronization and broadcast is sent in the time slot;
3) BHS of the hot spot area beam and BHS of the non-hot spot area can be alternately ordered, so that the beam revisiting time TRVMaximum hold time T for synchronization with end userDSatisfy TRV≤TD；
Beam hopping workflow and T designed in the inventionRV≤TDAccording to the rule, the terminals in the wave beam can not lose synchronization, so that the extra overhead caused by the fact that the terminals carry out synchronization again in the wave beam hopping period is avoided.
And 5, completing framing of the BHTP signaling frame.
After the time slot is arranged, the downlink BHTP signaling bearing system is used for allocating the resource of the time slot of the hopping wave beam of the user, the specific frame format of the BHTP signaling designed by the invention is shown as the figure 4, and the meanings of all fields are as follows:
the group ID is 8 bit fields, is used for identifying the ID of a user group to which the user terminal belongs and corresponds to a wave position number;
channel ID: 4 bits for indicating a channel ID allocated to the subscriber station in case of frequency multiplexing;
beam hopping cycle length: a 4-bit field for indicating a beam hopping period length of the system;
hop beam cycle number: 8 bit fields for indicating the hop beam cycle number of the current service;
time slot length: a 4-bit field for indicating a slot length of a single slot (BHS);
the number of allocated time slots: 8 bit fields, which indicate the total number of time slots allocated by the user/beam in the period;
hopping beam time slot number: 988 bit fields, which are used to indicate the position information of each time slot allocated by the user/beam in the hop beam period in turn, i.e. HN information; if the field of the current signaling frame fails to indicate that all HN information is complete, transmission continues in the next signaling frame.
And 6, demodulating BHTP signaling by the satellite and the user to complete synchronous hopping of the satellite-ground integrated beam.
And demodulating the control signaling on the satellite, and converting the BHTP information into a beam hopping control switch to perform beam switching after obtaining the BHTP information. The terminal receives the forwarded signaling, obtains BHTP after synchronous demodulation, analyzes the time slot information distributed by the system, and completes communication in the appointed time slot.
And 7, the user transmits the service and completes the service application of the next hop wave beam period.
And completing service transmission by the user in the hot spot region within the beam residence time, completing service application in the next service period through an uplink of the service beam, acquiring a BHTP (baby hamster kidney protocol) and other resource allocation tables through a downlink, and completing system synchronization and other operations. And the users in the non-hotspot areas only carry out resource application and system synchronization signaling interaction in the next service period within the polling beam residence time. After the user finishes the service transmission, the system receives the service ending information fed back by the user, releases the resources occupied by the user, and generates a BHTP and other resource allocation tables of the next service period according to the application of each beam service.
The effects of the present invention can be further verified by the following simulation.
1. An experimental scene is as follows:
in order to illustrate the effect of the method, the results of the comparison experiment are given by adopting 7-beam GEO satellite system model simulation.
2. Experimental contents and results:
in order to verify the performance of the method, a 7-beam GEO beam hopping system model is adopted, the terminal synchronization time and the maximum synchronization holding time are respectively set to be 100ms and 900ms, the beam hopping time slot BHS is set to be 80ms, the number of beam hopping cycle time slots is 256, the BHTP table generated in the step 4 is combined to respectively simulate the traditional beam-free revisiting time mechanism and the system adopting the method, and a capacity comparison graph is obtained as shown in FIG. 5. As shown in fig. 5, compared with a system without a beam revisiting mechanism, the system adopting the method of the present invention reduces the overhead of terminal synchronization, and improves the service capability of the system.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A method for controlling the working flow and the signaling frame design of a beam hopping satellite system along with services is characterized by comprising the following steps:
step 1: the system control signaling is sent through service beams, and user synchronization, network access and beam hopping resource application are completed through wave position polling when a certain service demand area is served for the first time;
step 2: after the user accesses the system, the network control center NCC establishes a target function facing to resource global scheduling and flexible allocation according to the service application of each user;
and step 3: solving the optimal integer solution of the objective function in the step 2 by utilizing a convex optimization algorithm, namely the optimal time slot number allocated to each beam
Figure FDA0003348487600000011
And 4, step 4: setting parameters of wave beam hopping period and wave beam residence time, and setting wave beam revisiting time TRVIn conjunction with the maximum holding time T of the user terminal synchronisationDAccording to TRV≤TDA rule, generating a beam hopping time schedule by using the time slot number of the beam;
and 5: finishing framing of a beam hopping time plan signaling frame;
step 6: satellite and user demodulation beam hopping time plan signaling to complete satellite-ground integrated beam synchronous hopping;
and 7: and the user transmits the service and completes the service application of the next beam hopping period.
2. The method for controlling the workflow and signaling frame design of the satellite system with service beam hopping according to claim 1, wherein the step 2 is to establish an objective function for global scheduling and flexible allocation of resources, and the method comprises the following steps:
the time slot, frequency spectrum and power are comprehensively considered, so that each beam i has the capacity as close as possible to the required capacity
Figure FDA0003348487600000012
Capacity value R ofiEstablishing the following n-order difference function:
Figure FDA0003348487600000013
Figure FDA0003348487600000014
Figure FDA0003348487600000015
Figure FDA0003348487600000016
wherein the content of the first and second substances,
Figure FDA0003348487600000017
for the total traffic demand of the beam, RiIn order to be able to provide the value of the capacity,
Figure FDA0003348487600000018
the number of time slots allocated for each beam,
Figure FDA0003348487600000019
the number of beams which can work in one time slot at most simultaneously is N, the total time slot length is N, and K is the number of system beams; under the limitation of power allocation, time slot allocation and service requirement, the optimal solution of the formula (1) is obtained.
3. The method as claimed in claim 2, wherein the step 3 uses convex optimization algorithm to obtain the number of slots of each beam
Figure FDA0003348487600000021
The method specifically comprises the following steps:
introducing a dual variable lambda into the constraint (3) to obtain a Lagrangian function as follows:
Figure FDA0003348487600000022
according to KKT condition and duality analysis, derivation is carried out on formula (5) to order
Figure FDA0003348487600000023
Comprises the following steps:
Figure FDA0003348487600000024
due to the fact that
Figure FDA0003348487600000025
Simultaneous formula (6) gives:
Figure FDA0003348487600000026
substituting equation (7) for equation (6) yields the number of slots for the beam as:
Figure FDA0003348487600000027
the constraint condition (4) indicates that the number of time slots allocated by the wave beams is an integer, and the integral number of time slots allocated by the wave beams can be obtained by rounding down after the result of the formula (8) is obtained in consideration of the fact that the satellite system is a power-limited system; n is the order of the difference objective function, and the capacity of beam distribution can be obtained after the time slot number is calculated
Figure FDA0003348487600000028
BtotFor beam bandwidth, γi、γkIs the signal to interference plus noise ratio of the beams i, k.
4. The method as claimed in claim 1, wherein the step 4 sets the beam hopping period and beam dwell time parameters, and sets the beam revisit time TRVIn conjunction with the maximum holding time T of the user terminal synchronisationDAccording to TRV≤TDThe method comprises the following steps of generating a beam hopping time schedule by utilizing the time slot number of beams:
4a) firstly, setting parameters of a wave beam hopping period and wave beam residence time, specifically:
1) beam hopping time slot BHS: a minimum duration of time allocated to a beam;
2) beam hopping period BHP: traversing the time required by the allocated beam hopping time slot sequence once;
3) time slot switching time SS: the time delay required for one beam to switch to another;
4) beam revisit time RVT: the interval time between the beam hopping time slot resource blocks allocated to a certain beam; 5) hop number HN: the number identifier of the beam hopping time slot, and the hop sequence number value of the first beam hopping time slot at the beginning of the beam hopping period is 1; when each wave beam jumping period is finished, the jumping sequence number is reinitialized to 1; when used in pairs with a beam identifier, the hop sequence number may be used as a unique identifier;
6) beam-hopping time planning: the time slice transmission plan for resource dynamic allocation comprises a beam hopping time slot, a beam hopping period, beam revisiting time, hop sequence numbers and bandwidths allocated by each beam and carrier frequency;
4b) firstly dividing the wave beam into a hot spot area wave beam and a non-hot spot area wave beam according to TRV≤TDThe rule obtains the sequence of the beam hopping time slots allocated by each beam in the beam hopping period:
1) hot spot area beam: the system allocates a corresponding number of beam hopping time slots to the beams in the hot spot area according to the service application of each user and the resource allocation algorithm in the steps 2 and 3 so as to complete the service;
2) beam of non-hotspot region: even if the beam of the non-hotspot region has no service requirement in a specific beam hopping period, at least one beam hopping time slot in which synchronization and broadcast signaling is transmitted should be allocated in the period;
3) the beam hopping time slots of the hot spot area beams and the beam hopping time slots of the non-hot spot areas can be alternately ordered, so that the beam revisiting time TRVMaximum hold time T for synchronization with end userDSatisfy TRV≤TD。
5. The method according to claim 1, wherein the beam hopping time plan signaling frame in step 5 comprises a group ID field, a channel ID field, a beam hopping cycle length field, a beam hopping cycle number field, a slot length field, an allocation slot number field, and a beam hopping slot number field; the beam hopping time plan signaling frame carries the allocation condition of the system to the beam hopping time slot resources of the user through the fields, and meanwhile, the satellite also utilizes the beam hopping time plan signaling frame to complete the synchronous switching of the beams; the fields and meanings in the beam hopping time plan signaling frame are set as follows:
group ID:8 bit fields, which are used for identifying the ID of the user group to which the user terminal belongs and correspond to the wave position number;
channel ID: 4 bits for indicating a channel ID allocated to the subscriber station in case of frequency multiplexing;
beam hopping cycle length: a 4-bit field for indicating a beam hopping period length of the system;
hop beam cycle number: 8 bit fields for indicating the hop beam cycle number of the current service;
time slot length: a 4-bit field for indicating a slot length of a single slot;
the number of allocated time slots: 8 bit fields, which indicate the total number of time slots allocated by the user/beam in the period;
hopping beam time slot number: 988 bit fields, used to represent the position information of each time slot allocated by the user/beam in the beam hopping period in turn, i.e. the hop sequence number information; if the field of the current signaling frame can not represent the complete hop sequence number information, the transmission is continued in the next signaling frame.
6. The method for controlling the workflow of a satellite system with service jump and designing a signaling frame according to claim 1, wherein step 6 the satellite and the user plan the signaling frame to complete the synchronous jump of the satellite-ground integrated beam by demodulating the time of jumping the beam, specifically:
the satellite demodulates the control signaling, after obtaining the time plan information of beam jump, convert it to the control switch of beam jump to carry on the beam switch; the terminal receives the forwarded signaling, and after synchronous demodulation, a beam hopping time plan is also obtained, the time slot information allocated by the system is analyzed, and communication is completed in the appointed time slot.
7. The method for controlling the working process and signaling frame design of a beam hopping satellite system with services according to claim 4, wherein the step 7 of the user performing service transmission and completing the service application in the next beam hopping period comprises:
completing service transmission by a user in a hot spot region within the beam residence time, completing service application of the next service period through an uplink of a service beam, acquiring a resource allocation table by a downlink, and completing system synchronous operation; the user in the non-hotspot area only carries out resource application and system synchronization signaling interaction in the next service period within the polling beam residence time; after the user finishes the service transmission, the system receives the service ending information fed back by the user, releases the resources occupied by the user, and generates a resource allocation table of the next service period according to the application of each beam service.
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