A method for digitally transparent processing of payload subband allocation fragmentation

Abstract

This invention relates to a method for defragmenting subband allocation in a digitally transparent processing system, addressing the limitation of existing methods in defragmenting subband allocation without ensuring uninterrupted user services. Specifically, it utilizes transitional subbands as transitional links to maintain user service continuity; the DTP satellite controller interacts with ground-based satellite communication equipment to promptly notify both parties of the allocation and release status of satellite subband resources; and includes methods for defragmenting satellite receiving subband allocation and satellite transmitting subband allocation. This invention minimizes the impact of communication subband resource defragmentation on online communication services, significantly improves the utilization of limited subband bandwidth resources, and enhances the efficiency of bandwidth allocation for new users.

Description

Technical Field

[0001] This invention belongs to the field of satellite communications, and specifically relates to a method for digitally transparently processing payload subband allocation fragmentation management. Background Technology

[0002] Digital transparent processing technology was first adopted by the US military on its Wideband Global Satellite Communications (WGS) satellites, and subsequently applied to some military / civilian satellites in countries such as France, Japan, and Israel. It is a semi-transparent forwarding technology with onboard processing capabilities, and the transponders using this technology are also called semi-regenerative transponders. Such transponders generally consist of three parts: a splitter / combiner, a microwave switching matrix, and an onboard switching controller. The splitter performs digital channelization processing on each received signal. The onboard switching controller configures the switching matrix according to instructions from the ground network control center, enabling free switching between channels. The network control center allocates bandwidth and channel resources to each user based on their requests from ground station users, and simultaneously configures the onboard switching controller to complete the signal switching. This technology combines the advantages of traditional transparent transponders and regenerative transponders, offering flexibility and reliability while supporting finer-grained switching (subband switching). It also circumvents the constraints of the physical layer signaling system, increasing system capacity and meeting the needs of variable bandwidth services and flexible network topology adjustments.

[0003] Digital transparent processing technology is a fundamental technical feature of my country's next-generation high-throughput satellites. After long-term operation, digital transparent processing payload satellites experience fragmentation in subband bandwidth resource allocation due to the uncertainty of user demands, primarily manifested in uncertainties regarding bandwidth size and subband hinge relationships. This fragmentation is mainly characterized by inconsistent and disorganized allocated carrier bandwidth, inevitably impacting bandwidth allocation for new users and wasting limited subband bandwidth resources to some extent. Typical fragmentation methods reconfigure satellite subband allocation relationships, but this often interrupts user data forwarding services carried by the satellite and requires concentrated operation over a period of time. Summary of the Invention

[0004] In view of this, the present invention proposes a method for defragmenting DTP payload communication satellite resources by utilizing the characteristics of digital transparent processing technology. Using this defragmentation method can support uninterrupted online services and minimize the impact of communication subband resource defragmentation on online communication services.

[0005] The specific technical solution is as follows:

[0006] A method for defragmentation of digitally transparent payload subband allocation is disclosed, which uses transition subbands as transition links to maintain the continuity of user services; the DTP satellite controller and ground satellite communication equipment interact and control each other to promptly notify each other of the allocation and release of satellite subband resources; specifically, it includes a satellite receiving subband allocation defragmentation method and a satellite transmitting subband defragmentation method.

[0007] The satellite receiving subband allocation fragmentation sorting method includes the following steps:

[0008] Step 1: The DTP controller controls the DTP satellite to allocate a transitional receive subband. The transitional receive subband and the original receive subband work together for reception. Both the original receive subband and the transitional receive subband are simultaneously mapped to the same transmit subband. At this time, the original receive subband and the transitional receive subband jointly serve the same user. Figure 4 As shown. The transition subband is controlled by the DTP controller, which separates the unallocated area from the receive subband using DTP satellites.

[0009] Step Two: The DTP controller instructs the ground satellite communication equipment to switch to the satellite transitional receive subband for transmission. The ground satellite communication equipment reconfigures its transmission channel to switch to the satellite transitional receive subband for signal transmission, and simultaneously notifies the DTP controller of the switchover completion. The DTP controller then instructs the DTP satellite to reclaim the original receive subband resources. The reclaimed subband allocation is as follows: Figure 5 As shown.

[0010] Step 3: The DTP controller controls the DTP satellite to allocate a new receive subband and a transitional receive subband for joint reception. The new receive subband and the transitional receive subband are simultaneously mapped to the same transmit subband, at which point they jointly serve the same user. For example... Figure 6 As shown.

[0011] Step 4: The DTP controller informs the ground satellite communication equipment to switch to the new satellite receive subband for transmission. The ground satellite communication equipment reconfigures its transmission channel to switch to the new satellite receive subband for signal transmission, and simultaneously informs the DTP controller of the switchover completion. The DTP controller then instructs the DTP satellite to reclaim the transitional receive subband resources. The reclaimed subband allocation is as follows: Figure 7 As shown.

[0012] The satellite launch subband allocation debris sorting method includes the following steps:

[0013] Step 1: The DTP controller controls the DTP satellite to allocate a transitional transmit subband. The transitional transmit subband and the original transmit subband are transmitted together. The original transmit subband and the transitional transmit subband are simultaneously mapped to the same receive subband. At this time, the original transmit subband and the transitional transmit subband jointly serve the same user. For example... Figure 9 As shown.

[0014] Step Two: The DTP controller instructs the ground satellite communication equipment to switch to the satellite transitional transmit subband for reception. The ground satellite communication equipment reconfigures its receiving channel to switch to the satellite transitional transmit subband for signal reception, and simultaneously notifies the DTP controller of the switchover completion. The DTP controller then instructs the DTP satellite to reclaim the original transmit subband resources. The reclaimed subband allocation is as follows: Figure 10 As shown.

[0015] Step 3: The DTP controller controls the DTP satellite to allocate a new transmit subband and a transitional transmit subband for simultaneous transmission. The new and transitional transmit subbands are simultaneously mapped to the same receive subband, at which point they jointly serve the same user. For example... Figure 11 As shown.

[0016] Step 4: The DTP controller informs the ground satellite communication equipment to switch to the new satellite transmission subband for signal reception. The ground satellite communication equipment reconfigures its receiving channel to switch to the new satellite transmission subband for signal reception and simultaneously notifies the DTP controller of the switchover completion. The DTP controller then instructs the DTP satellite to reclaim the transitional transmission subband resources. The reclaimed subband allocation is as follows: Figure 12 As shown.

[0017] Satellite digital transparent processing of payload subband allocation and fragmentation management is a completely new field, and there are currently no existing solutions similar to this invention.

[0018] Beneficial effects

[0019] 1. This invention uses a transition subband as a transition link to ensure uninterrupted online services and minimizes the impact of communication subband resource fragmentation on online communication services.

[0020] 2. While not interrupting user data forwarding services, this invention can also complete the work of sub-band allocation fragment reorganization.

[0021] 3. This invention greatly improves the utilization of limited subband bandwidth resources and increases the efficiency of bandwidth allocation for new users.

[0022] 4. The interactive control mechanism between the DTP controller and the network management and control of the ground satellite communication application equipment can promptly notify both parties of the allocation and release of satellite subband resources, facilitating timely adjustment of transceiver channel resources to ensure uninterrupted service. Attached Figure Description

[0023] Figure 1 A schematic diagram of the hinge relationship configuration between the transmit and receive ports;

[0024] Figure 2 Schematic diagram of transmission subband allocation;

[0025] Figure 3 Flowchart of satellite receiving subband allocation and fragmentation sorting method;

[0026] Figure 4 A schematic diagram showing the original receive subband and the transition receive subband being simultaneously mapped to the same transmit subband;

[0027] Figure 5 A schematic diagram of the sub-band allocation relationship after the original receiving sub-band is recovered;

[0028] Figure 6 A schematic diagram showing the simultaneous mapping of the new receive subband and the transitional receive subband to the same transmit subband;

[0029] Figure 7 A schematic diagram of the subband allocation relationship after the transitional receiving subband is recovered;

[0030] Figure 8 Flowchart of satellite launch subband allocation and debris sorting method;

[0031] Figure 9 A schematic diagram showing the original transmit subband and the transitional transmit subband being simultaneously mapped to the same receive subband;

[0032] Figure 10 A schematic diagram of the subband allocation relationship after the original transmitting subband is recovered;

[0033] Figure 11 A schematic diagram showing the simultaneous mapping of the new transmit subband and the transitional transmit subband to the same receive subband;

[0034] Figure 12 A schematic diagram of the subband allocation relationship after the transitional emission subband is recovered. Detailed Implementation

[0035] The DTP payload has several transceiver ports, each with several transceiver subbands. The default transceiver subband hinge relationship is shown in the diagram below. Through this hinge relationship, the wireless signal can be forwarded from the receiving port to the transmitting port.

[0036] Figure 1 In this configuration, each port has M transmit and receive sub-bands. Sub-bands configured through the transmit / receive sub-band hinge relationship are designated as "allocated areas," while sub-bands not configured through the transmit / receive sub-band hinge relationship are designated as "unallocated areas." Figure 2 As shown. The "transition area" will be generated from the "unallocated area".

[0037] The digital transparent processing payload subband allocation and fragmentation method described in this invention includes methods for satellite receiving subband allocation and fragmentation, and satellite transmitting subband fragmentation. Both methods can be used in conjunction with ground-based satellite communication equipment. The satellite's digital transparent processing payload subband allocation management is performed by a ground-based DTP controller.

[0038] Part 1: Satellite Receiver Subband Allocation Fragmentation

[0039] Satellite receiving subband allocation and fragmentation requires ground satellite communication equipment (including but not limited to NCC network control center, NMS network management system, CN core network, etc.), digital transparent processing payload controller (hereinafter referred to as DTP controller), and interactive operations between controlled satellites. The specific process is as follows: Figure 3 As shown.

[0040] When the received subband {n} is a set of subbands, the member n of the set is any subband, n∈[1,M]. In this embodiment, subbands n-1, n, and n+1 are used as members of {n} for explanation. Other sets are defined as described above. Figure 2 As shown, the set of receive subbands {n} is mapped one-to-one with the set of transmit subbands {i}.

[0041] The method for defragmenting the distribution fragments of the receive subband is further subdivided as follows:

[0042] Step 1: The DTP controller instructs the DTP satellite to specify the subband set {m} as the transitional receive subband.

[0043] Step 2: The DTP satellite completes the subband configuration response and informs the DTP controller via telemetry information that the subband set {m} has been configured as a transitional receiving subband.

[0044] Step 3: The DTP controller indicates the transition reception resource subband set {m} to the ground NMS network management system.

[0045] Step 4: The ground NMS network management system completes the transmission channel configuration, switches to the satellite receiving subband set {m} for transmission, and informs the DTP controller that the transmission switch is complete.

[0046] Step 5: The DTP controller instructs the DTP satellite to reclaim the original receive subband set {n} and instructs the DTP satellite to use subband set {l} as the new receive subband.

[0047] Step 6: The DTP satellite completes the subband configuration response, reclaims the original receiving subband set {n}, allocates a new receiving subband set {l}, and informs the DTP controller that the subband configuration is complete via telemetry information.

[0048] Step 7: The DTP controller indicates the new receive resource subband set {l} to the ground NMS network management system.

[0049] Step 8: The ground NMS network management system completes the transmission channel configuration, switches to the satellite receiving subband set {l} for transmission, and informs the DTP controller that the transmission switch is complete.

[0050] Step 9: The DTP controller instructs the DTP satellite to reclaim the transitional receive subband set {m} resources.

[0051] Step 10: The DTP satellite completes the subband configuration response and informs the DTP controller via telemetry information that the resource reclamation of subband set {m} is complete.

[0052] Part Two: Satellite Launch Subband Allocation and Debris Management

[0053] Satellite launch subband allocation and debris reorganization also require interaction between ground satellite communication equipment (including but not limited to NCC network control center, NMS network management system, CN core network, etc.), digital transparent processing payload controller (DTP controller), and controlled satellites. The specific process is as follows: Figure 8 As shown.

[0054] The method for defragmentation of the transmit subband allocation is further subdivided as follows:

[0055] Step 1: The DTP controller instructs the DTP satellite to use the subband set {j} as a transitional transmission subband.

[0056] Step 2: The DTP satellite completes the subband configuration response and informs the DTP controller via telemetry information that the subband set {j} has been configured as a transitional transmission subband.

[0057] Step 3: The DTP controller instructs the ground NMS network management system to transmit the satellite transition subband set {j}.

[0058] Step 4: The ground-based NMS network management system completes the receiving channel configuration, switches to the satellite transmission subband set {j} for reception, and informs the DTP controller that the reception switch is complete.

[0059] Step 5: The DTP controller instructs the DTP satellite to reclaim the original transmission subband set {i} and instructs the DTP satellite to use subband set {k} as the new transmission subband.

[0060] Step 6: The DTP satellite completes the subband configuration response, reclaims the original transmission subband set {i}, allocates a new transmission subband set {k}, and informs the DTP controller that the subband configuration is complete via telemetry information.

[0061] Step 7: The DTP controller instructs the ground NMS network management system to set up a new satellite launch subband {k}.

[0062] Step 8: The ground NMS network management system completes the receiving channel configuration, switches to the satellite transmission subband set {k} for reception, and informs the DTP controller that the reception switch is complete.

[0063] Step 9: The DTP controller instructs the DTP satellite to reclaim the transitional launch subband set {j} resources.

[0064] Step 10: The DTP satellite completes the subband configuration response and informs the DTP controller via telemetry information, indicating that the resource reclamation of subband set {j} is complete.

Claims

1. A method for fragmentation management of digitally transparent payload subband allocation, applied to digitally transparent payload DTP satellites, DTP controllers, and ground satellite communication equipment, characterized in that: Transition subbands are used as transition links to maintain the continuity of user services; the DTP controller interacts with ground satellite communication equipment to promptly notify both parties of the allocation and release of satellite subband resources; This includes satellite receiver subband allocation debris clearing and satellite launch subband debris clearing; Satellite receiver subband allocation fragmentation includes: The DTP controller controls the DTP satellite to allocate transitional receive subbands. The transitional receive subband and the original receive subband are used together for reception. The original receive subband and the transitional receive subband are simultaneously mapped onto the same transmit subband. At this time, the original receive subband and the transitional receive subband jointly serve the same user. The DTP controller informs the ground satellite communication equipment to switch to the satellite transitional receive subband for transmission; the ground satellite communication equipment switches to the satellite transitional receive subband for signal transmission by reconfiguring the transmission channel, and at the same time informs the DTP controller that the switch is complete. The DTP controller notifies the DTP satellite to reclaim the original receiver subband resources; The DTP controller controls the DTP satellite to allocate a new receive subband and a transitional receive subband for joint reception. The new receive subband and the transitional receive subband are simultaneously mapped onto the same transmit subband, and at this time, the new receive subband and the transitional receive subband jointly serve the same user. The DTP controller informs the ground satellite communication equipment to switch to the new satellite receiving subband for transmission; the ground satellite communication equipment switches to the new satellite receiving subband for signal transmission by reconfiguring the transmission channel, and at the same time informs the DTP controller that the switchover is complete. The DTP controller notifies the DTP satellite to reclaim transitional receive subband resources; In satellite launch subband debris reorganization, transitional launch subbands are used for corresponding subband resource allocation.

2. The method for organizing fragments in digital transparent processing of payload subband allocation according to claim 1, characterized in that: The transitional receive subband is controlled by the DTP controller, which separates the unallocated area from the receive subband by the DTP satellite.

3. The method for organizing fragments in digital transparent processing of payload subband allocation according to claim 1, characterized in that: The satellite launch subband debris cleanup method includes the following steps: Step 1: The DTP controller controls the DTP satellite to allocate transitional transmit subbands. The original transmit subband and the transitional transmit subband are simultaneously mapped to the same receive subband. At this time, the original transmit subband and the transitional transmit subband jointly serve the same user. Step 2: The DTP controller informs the ground satellite communication equipment to switch to the satellite transitional transmit subband for reception; the ground satellite communication equipment switches to the satellite transitional transmit subband for signal reception by reconfiguring the receiving channel, and at the same time informs the DTP controller that the switch is complete. The DTP controller notifies the DTP satellite to reclaim the original launch subband resources; Step 3: The DTP controller controls the DTP satellite to allocate a new transmission subband and a transitional transmission subband for simultaneous transmission. The new transmission subband and the transitional transmission subband are simultaneously mapped onto the same receiving subband, at which point the new transmission subband and the transitional transmission subband jointly serve the same user. Step 4: The DTP controller informs the ground satellite communication equipment to switch to the new satellite transmission subband for reception; the ground satellite communication equipment reconfigures the receiving channel to switch to the new satellite transmission subband for signal reception, and at the same time informs the DTP controller that the switch is complete. The DTP controller notifies the DTP satellite to reclaim transitional launch subband resources.

4. The method for organizing fragments in digital transparent processing of payload subband allocation according to claim 3, characterized in that: The transitional launch subband is controlled by the DTP controller, which separates DTP satellites from the unallocated areas within the launch subband.

5. A method for organizing fragments in digital transparent processing of payload subband allocation according to claim 1 or 3, characterized in that: Ground-based satellite communication equipment includes the NCC network control center, NMS network management system, and CN core network.

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