WO2018082594A1 - 卫星通讯网络的接入方法及装置 - Google Patents

卫星通讯网络的接入方法及装置 Download PDF

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Publication number
WO2018082594A1
WO2018082594A1 PCT/CN2017/109043 CN2017109043W WO2018082594A1 WO 2018082594 A1 WO2018082594 A1 WO 2018082594A1 CN 2017109043 W CN2017109043 W CN 2017109043W WO 2018082594 A1 WO2018082594 A1 WO 2018082594A1
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WIPO (PCT)
Prior art keywords
satellite
carrier
access
information
load
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PCT/CN2017/109043
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English (en)
French (fr)
Inventor
段敏
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中兴通讯股份有限公司
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Publication of WO2018082594A1 publication Critical patent/WO2018082594A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/28—Satellite selection
    • 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
    • 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
    • H04B7/18578—Satellite systems for providing broadband data service to individual earth stations

Definitions

  • the present disclosure relates to the field of communications, and in particular to a method and apparatus for accessing a satellite communication network.
  • the satellite communication system uses Time Division Multiplexed (TDM) for forward transmission.
  • TDM Time Division Multiplexed
  • SCT superframe composition table
  • BCT Broadcast Configuration Table
  • NCR Network Clock Reference
  • the access terminal first needs to lock the satellite, and then receives the SCT, BCT, and NCR overhead messages of the corresponding serving satellite carrier, and then initiates the access network request through the reverse link to perform the service application.
  • Multiple beams may exist in the same satellite. Multiple beam coverages may overlap or may not be continuously covered.
  • the access terminal does not explicitly select the service beam method. If the load is high and the coverage signal is weak. The service beam, then there will be problems of unbalanced resource utilization and low spectrum utilization between beams.
  • Multiple carriers may exist in the same satellite, and different carriers may be distinguished in the same beam. That is, the carrier can be regarded as the minimum service unit for the access terminal to select the access network. When the access terminal locks the satellite, multiple carriers can be selected. When the service is serviced, the access terminal does not explicitly select the carrier method. If the service carrier is improperly selected, the load between the carriers may be unbalanced and the spectrum utilization rate may be low.
  • Embodiments of the present disclosure provide a method and apparatus for accessing a satellite communication network, to at least solve
  • the satellite communication system has low spectrum utilization rate, unbalanced use of bandwidth resources, and the problem that the quality of user service cannot be guaranteed.
  • a method for accessing a satellite communication network comprising: determining an access satellite for accessing the satellite communication network; and obtaining forward signal strength information and/or the Carrier real-time load information of the access satellite determines an access carrier for accessing the satellite communication network under the access satellite, and accesses the satellite through the access satellite by using the determined access carrier Communication network.
  • determining the access satellite for accessing the satellite communication network includes: determining available satellite information for a satellite communication network plan; configuring a satellite search list based on the available satellite information; traversing the satellite search list, And determining, by the satellite search list, the access satellites for accessing the satellite communication network.
  • traversing the satellite search list and determining, from the satellite search list, the access satellite for accessing the satellite communication network includes: traversing the satellite search list, and determining a carrier real-time load information The satellite whose indicated load does not exceed the first load threshold is the access satellite.
  • traversing the satellite search list determining that the satellite indicated by the carrier real-time load information does not exceed the first load threshold for the access satellite includes one of: traversing the satellite search list, determining the satellite Searching for all satellites whose load indicated by the carrier real-time load information does not exceed the first load threshold, and determining, from all the determined satellites, that the signal strength is higher than the first intensity threshold as the access satellite; traversing the station Determining, by the satellite search list, all satellites whose load indicated by the carrier real-time load information in the satellite search list does not exceed the first load threshold, and determining the lowest load satellite among all the determined satellites as the access satellite Traversing the satellite search list, determining that the satellite indicated by the carrier real-time load information that is traversed first does not exceed the first load threshold is the access satellite.
  • traversing the satellite search list and determining, from the satellite search list, the access satellite for accessing the satellite communication network includes traversing the satellite search list to determine a carrier forward signal strength The satellite whose signal strength indicated by the information exceeds the second intensity threshold is The access satellite.
  • the method further includes: acquiring the available satellite information after the satellite communication network is re-planned; and reconfiguring the satellite search list according to the re-planned available satellite information.
  • obtaining the re-planned available satellite information of the satellite communication network includes: sending request information to a network side of the satellite communication network, where the request information is used to request acquisition of re-planned available satellite information; Receiving the re-planned available satellite information delivered by the network side of the satellite communication network according to the request information.
  • the satellite search list includes at least one of the following information: latitude and longitude information of the satellite, vertical height information of the satellite, beam configuration information of the satellite, and carrier information of the satellite.
  • the acquiring the carrier real-time load information of the access satellite includes: receiving a broadcast overhead message of the network side of the satellite communication network, where the broadcast overhead message carries the carrier of the access satellite Real-time load information.
  • determining, according to the carrier real-time load information and/or the forward signal strength information, an access carrier for accessing the satellite communication network under the access satellite, and using the determined connection Accessing the carrier through the access satellite to access the satellite communication network includes: accessing the access satellite according to the carrier real-time load information and/or the forward signal strength information
  • the wave performs the ordering of the priority access levels and generates a priority service carrier list, wherein the carrier load amount indicated by the carrier real-time load information is inversely proportional to the priority level, and the signal quality and the signal quality indicated by the forward signal strength information
  • the priority level is proportional to; the carrier is sequentially selected in descending order of the access level indicated by the priority carrier carrier list, and an attempt is made to access the satellite communication network through the access satellite by using the selected carrier. Until success.
  • a method for accessing a satellite communication network including: calculating carrier real-time load information of a satellite; and transmitting carrier real-time load information of the satellite to a terminal of the satellite communication network
  • the carrier real-time load information of the satellite is used by the terminal to determine an access satellite and an access carrier for accessing a satellite communication network, and using the access carrier and accessing the satellite through the access satellite Said satellite communication network.
  • calculating carrier real-time load information of the satellite includes: generating the carrier real-time load information by using a statistical carrier access user and a front reverse carrier bandwidth load ratio period calculation.
  • generating the real-time load information of the carrier by using a statistical carrier access user and a pre-reverse carrier bandwidth load ratio period calculation includes: mapping a maximum number of users for carrier access according to a carrier bandwidth configuration; and periodically counting current users of the current carrier.
  • the system carrier bandwidth ratio Min (forward load bandwidth ratio, reverse load bandwidth ratio); the system carrier bandwidth ratio, current carrier The ratio of the current number of access users to the maximum number of users of the carrier access is respectively compared with a carrier load determination threshold; when the system carrier bandwidth ratio is greater than the carrier load determination threshold, determining the carrier real-time load information The indicated load exceeds the load threshold; when the system carrier bandwidth ratio is less than or equal to the carrier load determination threshold, determining that the load indicated by the carrier real-time load information does not exceed the load threshold; when the current carrier is currently accessing the user When the ratio of the number to the maximum number of users of the carrier access is greater than the carrier load determination threshold Determining that the load indicated by the carrier real-time load information exceeds a load threshold; determining that the ratio of the current number of current users of the current carrier to the maximum number of users of the carrier access is less than or equal to the carrier load determination threshold The load indicated by the carrier real-time load information does not exceed the
  • transmitting the carrier real-time load information of the satellite to the terminal includes: The carrier real-time load information is sent to the terminal in a manner that carries the carrier real-time load information of the satellite in the broadcast overhead message.
  • the method further comprises: planning available satellite information of the terminal; and transmitting the available satellite information to the terminal.
  • the method further comprises: determining that the available satellite information needs to be re-planned; re-planning available satellite information of the terminal; re-planning available Satellite information is sent to the terminal.
  • determining that the available satellite information requires re-planning comprises: receiving request information from the terminal, wherein the request information is used to request re-planning of available satellite information.
  • an access device for a satellite communication network comprising: a determining module configured to determine an access satellite for accessing the satellite communication network; and an access module configured to Measured forward signal strength information and/or carrier real-time load information of the access satellite determines an access carrier for accessing the satellite communication network under the access satellite, and utilizes the determined connection The incoming carrier accesses the satellite communication network through the access satellite.
  • the first determining module includes: a first determining unit configured to determine available satellite information planned by the satellite communication network; a configuration unit configured to configure a satellite search list according to the available satellite information; and a second determining unit, Set to traverse the satellite search list and determine from the satellite search list the access satellites for accessing the satellite communication network.
  • the second determining unit includes: a first determining subunit, configured to traverse the satellite search list, and determine that the satellite indicated by the carrier real-time load information does not exceed the first load threshold is the access satellite .
  • the second determining unit includes: a second determining subunit, configured to traverse the satellite search list, and determine that the satellite whose signal strength indicated by the carrier forward signal strength information exceeds the second intensity threshold is the Into the satellite.
  • the device further includes: an acquiring module, configured to acquire, after the satellite search list is configured according to the available satellite information, an available satellite after re-planning of the satellite communication network Information; a first processing module configured to reconfigure the satellite search list based on the re-planned available satellite information.
  • an acquiring module configured to acquire, after the satellite search list is configured according to the available satellite information, an available satellite after re-planning of the satellite communication network Information
  • a first processing module configured to reconfigure the satellite search list based on the re-planned available satellite information.
  • the acquiring module includes: a first sending unit, configured to send request information to a network side of the satellite communication network, where the request information is used to request to obtain re-planned available satellite information;
  • the receiving unit is configured to receive the re-planned available satellite information delivered by the network side of the satellite communication network according to the request information.
  • the access module includes: a generating unit, configured to perform, according to the carrier real-time load information and/or the forward signal strength information, a priority access level of an access carrier under the access satellite Sorting and generating a priority service carrier list, wherein the carrier load amount indicated by the carrier real-time load information is inversely proportional to a priority level, and the signal quality indicated by the forward signal strength information is proportional to the priority level; And the input unit is configured to sequentially select carriers according to the access level indicated by the priority service carrier list from high to low, and try to access the satellite communication network by using the selected carrier through the access satellite, until Success till.
  • a generating unit configured to perform, according to the carrier real-time load information and/or the forward signal strength information, a priority access level of an access carrier under the access satellite Sorting and generating a priority service carrier list, wherein the carrier load amount indicated by the carrier real-time load information is inversely proportional to a priority level, and the signal quality indicated by the forward signal strength information is proportional to the priority level;
  • an access device for a satellite communication network including: a calculation module configured to calculate carrier real-time load information of a satellite; and a first sending module configured to perform real-time carrier of the satellite
  • the load information is sent to the terminal of the satellite communication network, wherein the carrier real-time load information of the satellite is used by the terminal to determine an access satellite and an access carrier for accessing the satellite communication network, and utilize the access
  • the carrier is coupled to the satellite communication network via the access satellite.
  • the calculating module includes: a calculating unit, configured to generate the carrier real-time load information by using a statistical carrier access user and a front reverse carrier bandwidth load ratio period calculation.
  • the calculating unit includes: a mapping subunit, configured to map a maximum number of carriers for carrier access according to a carrier bandwidth configuration; and a statistical subunit configured to periodically count the current number of users of the current carrier and the front reverse load bandwidth.
  • the indicated load exceeds the load threshold; the eighth determining subunit is configured to determine, when the ratio of the current number of users of the current carrier and the maximum number of users of the carrier access is less than or equal to the carrier load determination threshold The load indicated by the carrier real-time load information does not exceed the load threshold.
  • the first sending module includes: a second sending unit, configured to send the carrier real-time load information to the terminal by carrying the carrier real-time load information of the satellite in a broadcast overhead message.
  • the device further includes: a planning module configured to plan available satellite information of the terminal; and a second sending module configured to send the available satellite information to the terminal.
  • a planning module configured to plan available satellite information of the terminal
  • a second sending module configured to send the available satellite information to the terminal.
  • the apparatus further includes: a third determining module, configured to determine that the available satellite information needs to be re-planned after transmitting the available satellite information to the terminal; and the second processing module is configured to re-plan The available satellite information of the terminal; the third sending module is configured to send the re-planned available satellite information to the terminal.
  • a third determining module configured to determine that the available satellite information needs to be re-planned after transmitting the available satellite information to the terminal
  • the second processing module is configured to re-plan The available satellite information of the terminal
  • the third sending module is configured to send the re-planned available satellite information to the terminal.
  • the third determining module comprises: a second receiving unit configured to receive request information from the terminal, wherein the request information is used to request re-planning of available satellite information.
  • a terminal for a satellite communication network comprising: a processor configured to determine an access satellite for accessing the satellite communication network; an accessor coupled to the a processor, configured to determine, according to the measured forward signal strength information and/or carrier real-time load information of the access satellite, an access carrier for accessing the satellite communication network under the access satellite, and Accessing the access by the access satellite using the determined access carrier Satellite communication network.
  • the processor determining that the access satellite set to access the satellite communication network comprises: determining available satellite information of a satellite communication network plan; configuring a satellite search list according to the available satellite information; traversing the A satellite search list and the access satellites for accessing the satellite communication network are determined from the satellite search list.
  • a network side device of a satellite communication network including: a calculator, configured to calculate carrier real-time load information of the satellite; and a communication device connected to the calculator, configured to The carrier real-time load information of the satellite is sent to the terminal of the satellite communication network, wherein the carrier real-time load information of the satellite is used by the terminal to determine an access satellite and an access carrier for accessing the satellite communication network, And using the access carrier and accessing the satellite communication network through the access satellite.
  • the calculating, by the calculator, the carrier real-time load information of the satellite comprises: generating the carrier real-time load information by using a statistical carrier access user and a front reverse carrier bandwidth load ratio period calculation.
  • an access system for a satellite communication network comprising the terminal of any of the above, and the network side device of any of the above.
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the above steps.
  • the access satellite for accessing the satellite communication network is determined; the forward signal strength information obtained by the measurement and/or the carrier real-time load information of the access satellite are used to determine the access satellite communication under the access satellite.
  • the network accesses the carrier and accesses the satellite communication network by accessing the satellite using the determined access carrier. Therefore, the problem that the spectrum utilization rate of the satellite communication system is low, the bandwidth resource utilization is unbalanced, and the user service quality cannot be guaranteed can be solved in the related technology, thereby achieving the effect of improving the bandwidth utilization of the entire system and the quality of the user service.
  • FIG. 1 is a block diagram showing the hardware structure of a mobile terminal of an access method of a satellite communication network according to an embodiment of the present disclosure
  • FIG. 2 is a flow chart (1) of an access method of a satellite communication network according to an embodiment of the present disclosure
  • FIG. 3 is a flow chart (2) of an access method of a satellite communication network according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of fast access processing of intelligent access in the specific embodiment
  • FIG. 6 is a flowchart of processing of intelligent access based on carrier load in the specific embodiment
  • FIG. 7 is a flowchart of an intelligent access processing based on a forward signal to noise ratio in a specific embodiment of the present disclosure
  • FIG. 8 is a flowchart of a carrier load calculation process of intelligent access in an embodiment of the present disclosure
  • FIG. 10 is a structural block diagram (1) of an access device of a satellite communication network according to an embodiment of the present disclosure
  • FIG. 11 is a block diagram showing the structure of a determining module 1002 of an access device of a satellite communication network according to an embodiment of the present disclosure
  • FIG. 12 is a structural block diagram (1) of a second determining unit 1106 of an access device of a satellite communication network according to an embodiment of the present disclosure
  • FIG. 13 is a structural block diagram (2) of a second determining unit 1106 of an access device of a satellite communication network according to an embodiment of the present disclosure
  • FIG. 14 is a block diagram showing a preferred structure of an access device of a satellite communication network according to an embodiment of the present disclosure
  • 15 is a structural block diagram (2) of an access device of a satellite communication network according to an embodiment of the present disclosure
  • FIG. 17 is a block diagram showing the structure of a computing unit 1602 of an access device of a satellite communication network in accordance with an embodiment of the present disclosure.
  • FIG. 1 is a hardware structural block diagram of a mobile terminal of an access method of a satellite communication network according to an embodiment of the present disclosure.
  • mobile terminal 10 may include one or more (only one shown in FIG. 1) processor 102 (processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA. ), a memory 104 configured to store data, and a transmission device 106 configured as a communication function.
  • processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA.
  • memory 104 configured to store data
  • a transmission device 106 configured as a communication function.
  • the structure shown in FIG. 1 is merely illustrative and does not limit the structure of the above electronic device.
  • the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration than that shown in FIG.
  • the memory 104 can be configured as a software program and a module for storing application software, such as program instructions/modules corresponding to the access method of the satellite communication network in the embodiment of the present disclosure, and the processor 102 runs the software program and the module stored in the memory 104. In order to perform various functional applications and data processing, the above method is implemented.
  • Memory 104 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 104 may further include memory remotely located relative to processor 102, which may be connected to mobile terminal 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 106 is arranged to receive or transmit data via a network.
  • the above-described network specific example may include a wireless network provided by a communication provider of the mobile terminal 10.
  • the transmission device 106 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 106 can be a Radio Frequency (RF) module configured to communicate with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF Radio Frequency
  • the locked satellite phase includes the access terminal selecting the satellite to attempt to lock according to the local latitude and longitude position information and the satellite configuration search list, and if the locked service satellite is successful, receiving the broadcast overhead message corresponding to the serving satellite carrier, and initiating the access system request, If the lock is unsuccessful, the access terminal continues to select other satellites in the satellite search list to attempt to lock until the access terminal locks the satellite.
  • the mechanism for locking the satellite access network in the above satellite communication system has the following problems:
  • the access terminal accesses the system, the selected service satellite is uncontrollable.
  • the access terminal attempts to lock by traversing the search satellite, or preferentially selects the satellite closest to the local location to be locked, which is for a multi-satellite network system.
  • the geographic coverage of each satellite signal coverage may be different, and the signal strength of the coverage area may also be different.
  • the access terminal is likely to select a satellite with a high load or a satellite with a weak signal coverage. Therefore, such a service satellite is selected.
  • the method has problems such as unbalanced resource utilization between satellites and low spectrum utilization.
  • FIG. 2 is a flowchart (1) of an access method for a satellite communication network according to an embodiment of the present disclosure, as shown in FIG. 2, The process includes the following steps:
  • Step S202 determining an access satellite for accessing the satellite communication network
  • Step S204 determining, according to the measured forward signal strength information and/or the carrier real-time load information of the access satellite, the access carrier for accessing the satellite communication network, and using the determined The access carrier accesses the satellite through the access satellite Communication network.
  • the carrier real-time load information of the access satellite and/or the measured forward signal strength information may be obtained first, and then the carrier real-time load information of the access satellite and/or the measured forward signal strength information is used to determine the location.
  • the access carrier for accessing the satellite communication network under the access satellite may also directly determine the access signal under the access satellite according to the measured forward signal strength information and/or the carrier real-time load information of the access satellite.
  • the execution body of the foregoing steps may be a terminal (such as a mobile phone or other receiving device) in the satellite communication network, but is not limited thereto.
  • determining the access satellite for accessing the satellite communication network may include: determining available satellite information for satellite communication network planning; configuring a satellite search list based on the available satellite information; traversing the satellite search Listing and determining from the satellite search list above the access satellites for accessing the satellite communication network.
  • traversing the satellite search list and determining the access satellite for accessing the satellite communication network from the satellite search list may include: traversing the satellite search list to determine carrier real-time load information.
  • the satellite whose indicated load does not exceed the first load threshold is the above-mentioned access satellite.
  • traversing the satellite search list to determine that the satellite indicated by the carrier real-time load information does not exceed the first load threshold includes one of the following: traversing the satellite search list, determining the foregoing The satellites in the satellite search list indicate that the load indicated by the carrier real-time load information does not exceed the first load threshold, and the satellites whose signal strength is higher than the first intensity threshold are determined from all the determined satellites as the access satellite; traversing the satellite Searching the list, determining all satellites whose load indicated by the carrier real-time load information in the satellite search list does not exceed the first load threshold, and determining the lowest load from all the determined satellites The satellite is the access satellite; traversing the satellite search list to determine that the satellite indicated by the carrier real-time load information that is traversed first does not exceed the first load threshold is the access satellite.
  • the real-time load information of the carrier by traversing the searched satellite does not necessarily meet the requirements of the terminal, and only when the carrier real-time load information is in a high load state, the terminal accesses the locked satellite, thereby ensuring the system.
  • the load balancing between the carriers can effectively improve the spectrum utilization of the system.
  • the traversing the satellite search list and determining the access satellite for accessing the satellite communication network from the satellite search list may include: traversing the satellite search list, determining The satellite whose signal strength indicated by the carrier forward signal strength information exceeds the second intensity threshold is the above-mentioned access satellite.
  • traversing the satellite search list, determining that the signal strength indicated by the carrier forward signal strength information exceeds a second intensity threshold comprises, for the access satellite, one of: traversing the satellite Searching the list, determining all satellites whose signal strength indicated by the carrier forward signal strength information exceeds the second intensity threshold, and determining, from all the determined satellites, the satellite with the highest signal strength as the access satellite; traversing the station Determining, by the satellite search list, all satellites whose signal strength indicated by the carrier forward signal strength information exceeds the second intensity threshold, and determining, from all the determined satellites, that the load is lower than the second load threshold Accessing the satellite; traversing the satellite search list to determine that the satellite whose signal strength indicated by the carrier forward signal strength information first traversed exceeds the second intensity threshold is the access satellite.
  • the method further includes: acquiring the re-planned available satellite information of the satellite communication network; and reconfiguring the satellite according to the re-planned available satellite information. Search list.
  • obtaining the re-planned available satellite information of the satellite communication network may include: sending request information to a network side of the satellite communication network, where the request information is used to request re-planning available Satellite information; the re-planned available satellite information delivered by the network side of the satellite communication network according to the request information.
  • the network side of the satellite communication network may be a base station, and the update of the satellite information may be that the terminal initiates an update request, requesting the network side to update the satellite information, or the network side may send the updated satellite information to the terminal. , notify the terminal to update the satellite information.
  • the satellite search list may include at least one of the following information: latitude and longitude information of the satellite, vertical height information of the satellite, beam configuration information of the satellite, and carrier information of the satellite.
  • the method for acquiring the carrier real-time load information of the access satellite may include: receiving a broadcast overhead message broadcasted by the network side of the satellite communication network, where the broadcast overhead message carries the access Carrier real-time load information of the satellite.
  • the accessing the carrier through the access satellite to access the satellite communication network may include: prioritizing and generating priority access levels of the access carriers of the access satellite according to the carrier real-time load information and/or the forward signal strength information.
  • a priority service carrier list wherein the carrier load amount indicated by the carrier real-time load information is inversely proportional to a priority level, and the signal quality indicated by the forward signal strength information is proportional to the priority level; the service carrier list according to the priority level
  • the indicated access levels are sequentially selected from high to low, and an attempt is made to access the satellite communication network through the access satellites using the selected carrier until success.
  • the access terminal can select a carrier with a relatively good forward signal to noise ratio and a carrier with a relatively low load for the access network application in a satellite communication system with multiple satellites, multiple beams, and multi-carrier networking.
  • the load balancing between the various carriers of the system can be ensured, and the spectrum utilization of the system can be effectively improved, which plays an important role in improving the throughput of the entire system and the quality of the user service.
  • FIG. 3 is a flowchart (2) of a method for accessing a satellite communication network according to an embodiment of the present disclosure. As shown in FIG. 3, the process includes the following steps. :
  • Step S302 calculating carrier real-time load information of the satellite
  • Step S304 transmitting carrier real-time load information of the satellite to the terminal of the satellite communication network, wherein the carrier real-time load information of the satellite is used by the terminal to determine an access satellite and an access carrier for accessing the satellite communication network, And using the above access carrier and accessing the satellite communication network through the access satellite.
  • the execution body of the foregoing step may be a network side (such as a network control center, a base station), but is not limited thereto.
  • calculating the carrier real-time load information of the satellite may include: generating the foregoing carrier real-time load information by using a statistical carrier access user and a front reverse carrier bandwidth load ratio period calculation.
  • the transmitting the carrier real-time load information of the satellite to the terminal may include: transmitting the carrier real-time load information to the terminal by carrying the carrier real-time load information of the satellite in a broadcast overhead message.
  • the method may further include: planning available satellite information of the terminal; and transmitting the available satellite information to the terminal.
  • the method may further include: determining that the available satellite information needs to be re-planned; re-planning the available satellite information of the terminal; and re-planning Satellite information can be sent to the above terminal.
  • determining that the available satellite information needs to be re-planned may include receiving request information from the terminal, wherein the request information is used to request re-planning of available satellite information.
  • the access terminal can select a carrier with a relatively good forward signal to noise ratio and a carrier with a relatively low load for the access network application in a satellite communication system with multiple satellites, multiple beams, and multi-carrier networking.
  • the load balancing between the various carriers of the system can be ensured, and the spectrum utilization of the system can be effectively improved, which plays an important role in improving the throughput of the entire system and the quality of the user service.
  • the network side of the satellite communication system calculates the carrier real-time load information CellLoadLevel, and sends the message through the broadcast overhead message, and the access terminal side is available according to the system.
  • the satellite information configures the satellite search list, and traverses the satellite search list to try to lock the satellite, receives the corresponding loaded satellite carrier real-time load information CellLoadLevel, and measures the forward signal strength information (signal-to-noise ratio) FrowordSINRLevel, and then according to the traversal received carrier real-time load information, And the measured forward signal strength information, generating a priority service carrier list, and the access terminal initiates the access network request according to the priority order of the service carrier list until the access network succeeds, including the following steps:
  • Step S401 the access terminal intelligent access function starts
  • the network side is in a period of 5s (the period can be adjusted, preferably 5s in this embodiment), and the carrier load is generated by counting the number of carrier access users and the front reverse carrier bandwidth load ratio (corresponding to the carrier in the above) Real-time load information)
  • Level information CellLoadLevel, CellLoadLevel is divided into three levels of high load, medium load, and low load, wherein the load threshold may include a first load threshold and a second load threshold, and the first load threshold is greater than the second load threshold, the carrier
  • the load may be a low load level
  • the load indicated by the carrier real-time load information exceeds the second load threshold
  • the first load threshold may not be the medium load level
  • the carrier real-time load information When the indicated load exceeds the first load threshold, it may be a high load level; and is transmitted by broadcast overhead information;
  • Step 403 The access terminal side configures a satellite search list according to available satellite information planned by the satellite communication system, and the satellite search list mainly includes satellite latitude and longitude information, vertical height information, beam configuration information, and carrier information;
  • Step 404 The access terminal traverses the satellite search list, attempts to lock the satellite and receives the broadcast overhead message of the corresponding carrier, and if the lock is successful, records the carrier load level CellLoadLevel acquired by the corresponding satellite and the forward signal to noise ratio measurement information level FrowordSINRLevel, wherein The signal-to-noise ratio measurement information level FrowordSINRLevel can be divided into three levels: good signal quality, general signal quality, and poor signal quality, and the signal quality is good;
  • Step 405 The access terminal side prioritizes the recorded carrier load level CellLoadLevel and the SNR level FrowordSINRLevel information to generate a priority service carrier list.
  • the priority ordering rule is: FrowordSINRLevel The better the signal quality, the higher the priority, the CellLoadLevel The smaller the load, the higher the priority;
  • Step 406 The access terminal selects a carrier from the high priority according to the service carrier priority list to initiate service access, and if the access succeeds, enters the 107 unit, otherwise selects the secondary priority service carrier and then attempts to initiate service access, until After the access is successful;
  • step 407 the access terminal intelligent access function ends.
  • the network side of the satellite communication system calculates the carrier real-time load information CellLoadLevel, and sends the message through the broadcast overhead message.
  • the system can use satellite information to configure the satellite search list, and traverse the satellite search list to try to lock the satellite, receive the corresponding locked satellite carrier real-time load information CellLoadLevel, and measure the forward signal strength information (signal-to-noise ratio) FrowordSINRLevel, when the FrowordSINRLevel level is non-signal quality difference (corresponding to the determination of the strength threshold), and when the CellLoadLevel is non-high load, the access terminal directly initiates service access on the carrier until the access network succeeds, including the following steps:
  • Step 501 The fast access function of the access terminal intelligent access starts
  • Step 502 The network side generates a carrier load level information CellLoadLevel by using a statistical carrier access number and a front reverse carrier bandwidth load ratio in a period of 5s.
  • the CellLoadLevel is divided into three levels: high load, medium load, and low load; Broadcast overhead message transmission;
  • Step 503 The access terminal side configures a satellite search list according to available satellite information planned by the satellite communication system, and the satellite search list mainly includes satellite latitude and longitude information, vertical height information, beam configuration information, and carrier information;
  • Step 504 The access terminal traverses the satellite search list, attempts to lock the satellite and receives the broadcast overhead message of the corresponding carrier, and if the lock is successful, records the carrier load level CellLoadLevel acquired by the corresponding satellite, and the forward signal to noise ratio measurement information level FrowordSINRLevel, wherein The signal-to-noise ratio measurement information level FrowordSINRLevel can be classified into three levels: good signal quality, general signal quality, and poor signal quality.
  • the intensity threshold may include a first intensity threshold and a second intensity threshold, and the first intensity threshold is greater than the second intensity threshold.
  • the signal quality may be a good level, and the signal strength indicated by the carrier forward signal strength information exceeds the second intensity threshold and does not exceed the first strength.
  • the threshold value may be a general level of signal quality, and when the signal strength indicated by the carrier forward signal strength information exceeds the intensity threshold, it may be a level of poor signal quality;
  • Step 505 When the FrowordSINRLevel level is non-signal quality difference, and the CellLoadLevel is non-high load, the access terminal directly initiates service access on the carrier.
  • Step 506 the fast access function of the intelligent access of the access terminal ends.
  • the network side of the satellite communication system calculates the carrier load load value of the real-time load information (the CellLoadLevel value is represented by 1 bit, and is represented by 0.
  • the carrier non-high load state (corresponding to the above-mentioned medium load threshold), when 1 indicates the carrier high load state) and transmitted through the broadcast overhead message
  • the access terminal side configures the satellite search list according to the available satellite information of the system, and traverses the satellite search list. Try to lock the satellite and receive the real-time load information CellLoadLevel corresponding to the locked satellite carrier.
  • the access terminal chooses to access the currently locked satellite carrier. Otherwise, other satellites that continue to select the satellite search list try to lock until the access network is successful. , including the following steps:
  • Step 601 The access terminal starts based on an intelligent access function of a carrier load.
  • Step 602 The access network side generates a carrier load level information CellLoadLevel by using a statistical carrier access number and a front reverse carrier bandwidth load ratio in a period of 5s.
  • the CellLoadLevel is divided into two states: high load and non-high load; Broadcast overhead message transmission;
  • Step 603 The access terminal side configures a satellite search list according to available satellite information planned by the satellite communication system, and the satellite search list mainly includes satellite latitude and longitude information, vertical height information, beam configuration information, and carrier information;
  • Step 604 the access terminal side traverses the satellite search list, attempts to lock the satellite and receives the broadcast overhead message of the corresponding carrier, and if the lock is successful, records the carrier real-time load information CellLoadLevel obtained by the corresponding satellite;
  • Step 605 When the CellLoadLevel value is a non-high load state, the access terminal directly Initiating service access on the satellite carrier, otherwise entering unit 604;
  • Step 606 The access terminal ends the intelligent access function based on the carrier load.
  • the access terminal side in the satellite communication system configures a satellite search list according to available satellite information of the system, and traverses the satellite.
  • the search list attempts to lock the satellite, and measures the forward signal strength information (signal-to-noise ratio) of the satellite carrier (FrowordSINRLevel).
  • the FrowordSINRLevel value is expressed by 1 bit. When it is 0, it indicates that the forward signal condition is good, and when it is 1, it indicates that the forward signal condition is poor.
  • the FrowordSINRLevel value is 0, the access terminal initiates service access directly on the carrier. Otherwise, other satellites in the satellite search list are selected to try to lock until the access network is successful, including the following steps:
  • Step 701 The access terminal starts based on an intelligent access function of a forward signal to noise ratio.
  • Step 702 The access terminal side configures a satellite search list according to available satellite information planned by the satellite communication system, where the satellite search list mainly includes satellite latitude and longitude information, vertical height information, beam configuration information, and carrier information.
  • Step 703 the access terminal side traverses the satellite search list, attempts to lock the satellite and receives the broadcast overhead message of the corresponding carrier, and if the locking is successful, measures the forward signal to noise ratio information FrowordSINRLevel of the corresponding satellite carrier;
  • Step 704 Determine the SNR quality.
  • the access terminal directly initiates service access on the carrier, otherwise enters the 703 unit.
  • Step 705 the access terminal ends based on the intelligent access function of the forward signal to noise ratio.
  • FIG. 8 is a flowchart of a carrier load calculation process for intelligent access according to an embodiment of the present disclosure, as shown in FIG. 8
  • the carrier real-time load information can be represented by 1 bit, 0 means non-high load, 1 means high load, and the calculation period and broadcast transmission period can be set. For 5s.
  • SysBandWidth Configured to 2MHz
  • the maximum number of supported carriers is TotalUseNum (supporting 100 users), and then the slot resource idle ratio is reversely scheduled according to the system (for example, within the system 1s period, there is no scheduling for 300ms).
  • Step 801 The carrier load calculation function of the intelligent access of the access terminal starts.
  • Step 802 The access network maps the maximum number of supported users of the carrier according to the carrier bandwidth configuration.
  • Step 803 The access network collects the current number of users currently accessing the carrier and the ratio of the front reverse load bandwidth in a period of 5s.
  • Step 805 comparing the calculated system carrier load bandwidth ratio, and the statistical current carrier user number and the maximum allowable user number ratio, respectively, with the carrier load determination threshold, and determining that the threshold is set to 80% (the determination threshold may not be a fixed value, Preferably 80%) in the examples;
  • Step 806 If the system carrier load bandwidth ratio is greater than the carrier load determination threshold, or the user number ratio is greater than the carrier load determination threshold, the system carrier load is a high load, or a low load.
  • Step 807 the carrier load calculation function of the intelligent access of the access terminal ends.
  • FIG. 9 is a flowchart of a satellite search list update process for intelligent access in the specific embodiment.
  • a satellite search list is configured on the access terminal side by using available satellite information, and the list information includes satellite latitude and longitude and vertical. Height, beam, carrier information, because the access terminal carrier can be a moving object such as a ship or an airplane, so the satellite search list needs to be constantly updated under different geographic coverage positions, so that the access terminal can quickly and effectively lock the service satellite ( Corresponding to the above-mentioned access satellite) carrier, after accessing the network by the access terminal, the instance actively requests the satellite search list to update to the access network side through the traffic channel, and the access network is available according to the location information of the access terminal and the system operation.
  • the satellite coverage information generates a new satellite search list and sends it to the access terminal.
  • Step 901 The satellite search list update function of the access terminal intelligent access starts
  • Step 902 The access terminal periodically initiates a satellite search list update request.
  • Step 903 The access network generates a new satellite search list according to the latitude and longitude information of the access terminal and the geographic coverage of the available satellite information of the system, and sends the new satellite search list to the access terminal.
  • Step 904 The access terminal updates the satellite search list.
  • Step 905 the satellite search list update function of the access terminal intelligent access ends.
  • the system real-time load information is transmitted through the network side periodic broadcast, and the access terminal side configures the satellite lock basic list, searches for the locked service satellite, and receives the real-time load information of the corresponding service satellite carrier, and measures the forward signal strength information.
  • an access device for a satellite communication network is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 10 is a structural block diagram (1) of an access device of a satellite communication network according to an embodiment of the present disclosure. As shown in FIG. 10, the device includes: a determining module 1002 and an access module 1004, which are described below:
  • the determining module 1002 is configured to determine an access satellite for accessing the satellite communication network; the access module 1004 is connected to the first determining module 1002, and configured to obtain forward signal strength information according to the measurement and/or the foregoing
  • the carrier real-time load information of the satellite is determined by the access carrier for accessing the satellite communication network, and the determined access carrier is used to access the satellite communication network through the access satellite.
  • FIG. 11 is a structural block diagram of a determining module 1002 of an access device of a satellite communication network according to an embodiment of the present disclosure.
  • the determining module 1002 may include: a first determining unit 1102, a configuration unit 1104, and a second determining.
  • Unit 1106, the determination module 1002 is described below:
  • the configuration unit 1104 is configured to traverse the satellite search list and determine the access satellite for accessing the satellite communication network from the satellite search list.
  • FIG. 12 is a structural block diagram (1) of a second determining unit 1106 of an access device of a satellite communication network according to an embodiment of the present disclosure.
  • the second determining unit 1106 may include: a first determining subunit 1202.
  • the second determining unit 1106 is described below:
  • the first determining subunit 1202 is configured to traverse the satellite search list, and determine that the satellite whose load indicated by the carrier real-time load information does not exceed the first load threshold is the access satellite.
  • the first determining subunit 1202 traverses the satellite search list by one of the following methods, and determines that the satellite whose load indicated by the carrier real-time load information does not exceed the first load threshold is the access satellite. : traversing the satellite search list to determine all satellites whose load indicated by the carrier real-time load information in the satellite search list does not exceed the first load threshold, and determining a satellite whose signal strength is higher than the first intensity threshold from all the determined satellites Having traversing the satellite search list, traversing the satellite search list, determining that all the satellites whose load indicated by the carrier real-time load information in the satellite search list does not exceed the first load threshold, and determining the lowest load satellite among all the determined satellites The access satellite; traversing the satellite search list to determine that the satellite indicated by the carrier real-time load information that is traversed first does not exceed the first load threshold is the access satellite.
  • FIG. 13 is a structural block diagram (2) of a second determining unit 1106 of an access device of a satellite communication network according to an embodiment of the present disclosure.
  • the second determining unit 1106 may include: a second determining subunit 1302.
  • the second determining unit 1106 is described below:
  • the second determining subunit 1302 is configured to traverse the satellite search list, and determine that the satellite whose signal strength indicated by the carrier forward signal strength information exceeds the second intensity threshold is the access satellite.
  • the second determining subunit 1302 traverses the satellite search list by one of the following methods, and determines that the satellite whose signal strength indicated by the carrier forward signal strength information exceeds the second intensity threshold is the access.
  • Satellite traversing the satellite search list to determine all satellites whose signal strength indicated by the carrier forward signal strength information exceeds the second intensity threshold, and determining the satellite with the highest signal strength from all the determined satellites as the access satellite; Traversing the satellite search list to determine the letter indicated by the carrier forward signal strength information All satellites whose strength exceeds the above second intensity threshold, and the satellites whose load is lower than the second load threshold are determined from all the determined satellites are the above-mentioned access satellites; traverse the satellite search list to determine the carrier traversal of the first traversal The satellite whose signal strength indicated by the signal strength information exceeds the second intensity threshold is the above-mentioned access satellite.
  • FIG. 14 is a block diagram of a preferred structure of an access device for a satellite communication network according to an embodiment of the present disclosure. As shown in FIG. 14, the device further includes an acquisition module 1402 and a first processing module 1404, which are described below:
  • the obtaining module 1402 is connected to the first determining module 1002, configured to acquire the available satellite information after re-planning of the satellite communication network after configuring the satellite search list according to the available satellite information; and the first processing module 1404 is connected to the foregoing acquiring Module 1402 is arranged to reconfigure the satellite search list based on the re-planned available satellite information.
  • the obtaining module 1402 may include: a first sending unit, configured to send request information to a network side of the satellite communication network, where the request information is used to request acquisition of a re-planned available
  • the first receiving unit is configured to receive the re-planned available satellite information delivered by the network side of the satellite communication network according to the request information.
  • the satellite search list may include at least one of the following information: latitude and longitude information of the satellite, vertical height information of the satellite, beam configuration information of the satellite, and carrier information of the satellite.
  • the method for acquiring the real-time load information of the carrier accessing the satellite may include: receiving a broadcast overhead message broadcasted by the network side, where the broadcast overhead message carries the carrier real-time load of the access satellite. information.
  • the access module may include: a generating unit, configured to preferentially access the access carrier under the access satellite according to the carrier real-time load information and/or the forward signal strength information. Sorting into the level and generating a priority service carrier list, wherein the carrier load amount indicated by the carrier real-time load information is inversely proportional to the priority level, and the signal quality indicated by the forward signal strength information is proportional to the priority level; Into the unit, The carrier is selected in order from the highest to the lowest in the order of the access level indicated by the priority carrier service carrier, and attempts to access the satellite communication network through the access satellite by using the selected carrier until success.
  • the device may include: a calculation module 1502 and a first transmission module 1504. Description:
  • the calculating module 1502 is configured to calculate carrier real-time load information of the satellite; the first sending module 1504 is connected to the calculating module 1502, and configured to send the carrier real-time load information of the satellite to the terminal of the satellite communication network, where the satellite
  • the carrier real-time load information is used by the terminal to determine an access satellite and an access carrier for accessing the satellite communication network, and to access the satellite communication network by using the access carrier and the access satellite.
  • the computing module 1502 may include a computing unit 1602 configured to access a user through a statistical carrier and a front reverse The carrier bandwidth load ratio period calculation generates the above-mentioned carrier real-time load information.
  • FIG. 17 is a structural block diagram of a computing unit 1602 of an access device of a satellite communication network according to an embodiment of the present disclosure.
  • the computing unit 1602 may include: a mapping subunit 1702, a statistical subunit 1704, and a computing subunit. 1706, comparing subunit 1708, fifth determining subunit 1710, sixth determining subunit 1712, seventh determining subunit 1714, and eighth determining subunit 1716, the computing unit 1602 is described below:
  • the mapping sub-unit 1702 is configured to map the maximum number of carriers to be accessed according to the carrier bandwidth configuration; the statistical sub-single 1704 is connected to the mapping sub-unit 1702, and is configured to periodically count the current number of users of the current carrier and the front reverse load bandwidth.
  • the fifth determining subunit 1710 is connected to the comparing subunit 1708, and is configured to determine that the load indicated by the carrier real-time load information exceeds a load threshold when the system carrier bandwidth ratio is greater than the carrier load determining threshold;
  • the determining unit 1712 is connected to the comparing subunit 1708, and configured to determine that the load indicated by the carrier real-time load information does not exceed the load threshold when the system carrier bandwidth ratio is less than or equal to the carrier load determining threshold;
  • the subunit 1714 is connected to the comparison subunit 1708, and is configured to determine, when the ratio of the current number of current users of the current carrier and the maximum number of users of the carrier access is greater than the carrier load determination threshold, determine the real-time load information of the carrier.
  • the load exceeds the load threshold; the eighth determining subunit 1716, the comparing subunit 1708, is configured to determine that when the ratio of the current number of current users of the current carrier to the maximum number of users of the carrier access is less than or equal to the carrier load determination threshold Negative as indicated by carrier real-time load information Load threshold is not exceeded.
  • the first sending module may include: a second sending unit, configured to send the carrier real-time load information to the terminal by carrying the carrier real-time load information of the satellite in a broadcast overhead message. .
  • the apparatus may further include: a planning module configured to plan available satellite information of the terminal; and a second sending module configured to send the available satellite information to the terminal.
  • the apparatus may further include: a third determining module, configured to determine the available after sending the available satellite information to the terminal The satellite information needs to be re-planned; the second processing module is configured to re-plan the available satellite information of the terminal; and the third transmitting module is configured to send the re-planned available satellite information to the terminal.
  • the foregoing third determining module may include: a second receiving unit configured to receive request information from the terminal, wherein the request information is used to request re-planning of available satellite information.
  • a terminal of a satellite communication network comprising: a processor configured to determine an access satellite for accessing the satellite communication network; an access device, Connecting to the processor, configured to determine, according to the measured forward signal strength information and/or the carrier real-time load information of the access satellite, the access carrier for accessing the satellite communication network, and Accessing the satellite communication network through the access satellite by using the determined access carrier.
  • the processor determines that the access satellite configured to access the satellite communication network comprises: determining available satellite information planned by the satellite communication network; configuring a satellite search list according to the available satellite information; traversing the above A satellite search list and the above-mentioned access satellites for accessing the satellite communication network are determined from the satellite search list described above.
  • a network side device of a satellite communication network including: a calculator, configured to calculate carrier real-time load information of the satellite; and a communication device connected to the calculator, configured to set the satellite
  • the carrier real-time load information is sent to the terminal of the satellite communication network, wherein the carrier real-time load information of the satellite is used by the terminal to determine an access satellite and an access carrier for accessing the satellite communication network, and use the access carrier And accessing the above satellite communication network through the above access satellite.
  • the calculating, by the calculator, the carrier real-time load information of the satellite includes: generating the foregoing carrier real-time load information by using a statistical carrier access user and a front reverse carrier bandwidth load ratio period calculation.
  • an access system for a satellite communication network including the terminal described in any of the above embodiments, and the network side device described in any of the foregoing embodiments.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • Embodiments of the present disclosure also provide a storage medium.
  • the above storage medium may be configured to store program code for performing the above steps.
  • the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a random access memory (Random).
  • Access Memory referred to as RAM
  • mobile hard disk disk or optical disk, and other media that can store program code.
  • the processor performs the above steps according to the stored program code in the storage medium.
  • modules or steps of the present disclosure described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. As such, the disclosure is not limited to any specific combination of hardware and software.
  • an access method and apparatus for a satellite communication network provided by an embodiment of the present disclosure have the following beneficial effects: solving the low frequency spectrum utilization of the satellite communication system in the related art, uncontrollable use of bandwidth resources, and users
  • the problem that the quality of service is not guaranteed can achieve the effect of improving the bandwidth utilization of the entire system and the quality of user service.

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Abstract

本公开实施例中提供了一种卫星通讯网络的接入方法及装置，该方法包括：确定用于接入卫星通讯网络的接入卫星；根据测量得到的前向信号强度信息和/或接入卫星的载波实时负荷信息确定接入卫星下的用于接入卫星通讯网络的接入载波，并利用确定的接入载波通过接入卫星接入到卫星通讯网络。通过本公开中的实施例，解决了相关技术中卫星通讯系统频谱利用率低、带宽资源利用不均衡不可控、以及用户服务质量得不到保证的问题，达到提高整个系统带宽利用率以及用户服务质量的效果。

Description

卫星通讯网络的接入方法及装置 技术领域
本公开涉及通信领域，具体而言，涉及一种卫星通讯网络的接入方法及装置。
背景技术
第二代卫星交互系统(Digital Video Broadcasting-Return Channel By Satellite Second Generation，简称为DVB-RCS2)标准协议中，卫星通讯系统前向采用时分复用(Time Division Multiplexed，简称为TDM)传输，前向通过接入网络周期发送超帧结构表(Superframe Composition Table，简称为SCT)、广播配置表(Broadcast Configuration Table，简称为BCT)、网络参考时钟(Network Clock Reference，简称为NCR)广播开销消息。接入终端先需要锁定卫星，再接收相应服务卫星载波的SCT、BCT、NCR开销消息，然后通过反向链路发起接入网络请求进行业务应用。
同一个卫星可能存在多个波束，多个波束覆盖可以重叠，也可以不连续覆盖，当同一卫星存在波束A和B，接入终端没有明确的选择服务波束方法，如果选择负载高、覆盖信号弱的服务波束，那么就会存在波束之间资源利用不均衡、频谱利用率低的问题。
同一卫星可能存在多个载波，同一波束下也可以区分不同的载波，即载波可以看作接入终端选择接入网络的最小服务单元，当有接入终端锁定卫星后，有多个载波可以选择服务时，接入终端没有明确的选择载波方法，如果服务载波选择不当，也可能导致载波间负荷不均衡、频谱利用率低的问题。
针对上述问题，相关技术中并未提出有效的解决方案。
发明内容
本公开实施例提供了一种卫星通讯网络的接入方法及装置，以至少解 决相关技术中卫星通讯系统频谱利用率低、带宽资源利用不均衡不可控、以及用户服务质量得不到保证的问题。
根据本公开的一个实施例，提供了一种卫星通讯网络的接入方法包括：确定用于接入所述卫星通讯网络的接入卫星；根据测量得到的前向信号强度信息和/或所述接入卫星的载波实时负荷信息确定所述接入卫星下的用于接入所述卫星通讯网络的接入载波，并利用确定的所述接入载波通过所述接入卫星接入所述卫星通讯网络。
可选地，确定用于接入所述卫星通讯网络的所述接入卫星包括：确定卫星通讯网络规划的可用卫星信息；根据所述可用卫星信息配置卫星搜索列表；遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星。
可选地，遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星包括：遍历所述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为所述接入卫星。
可选地，遍历所述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为所述接入卫星包括以下之一：遍历所述卫星搜索列表，确定所述卫星搜索列表中载波实时负荷信息所指示的负荷未超过所述第一负荷阈值的所有卫星，并从确定的所有卫星中确定信号强度高于第一强度阈值的卫星为所述接入卫星；遍历所述卫星搜索列表，确定所述卫星搜索列表中载波实时负荷信息所指示的负荷未超过所述第一负荷阈值的所有卫星，并从确定的所有卫星中确定负荷最低的卫星为所述接入卫星；遍历所述卫星搜索列表，确定最先遍历到的载波实时负荷信息所指示的负荷未超过所述第一负荷阈值的卫星为所述接入卫星。
可选地，遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星包括：遍历所述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为 所述接入卫星。
可选地，遍历所述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为所述接入卫星包括以下之一：遍历所述卫星搜索列表，确定所述载波前向信号强度信息所指示的信号强度超过所述第二强度阈值的所有卫星，并从确定的所有卫星中确定信号强度最高的卫星为所述接入卫星；遍历所述卫星搜索列表，确定所述载波前向信号强度信息所指示的信号强度超过所述第二强度阈值的所有卫星，并从确定的所有卫星中确定负荷低于第二负荷阈值的卫星为所述接入卫星；遍历所述卫星搜索列表，确定最先遍历到的载波前向信号强度信息所指示的信号强度超过所述第二强度阈值的卫星为所述接入卫星。
可选地，在根据所述可用卫星信息配置卫星搜索列表之后，还包括：获取所述卫星通讯网络重新规划后的可用卫星信息；根据所述重新规划后的可用卫星信息重新配置卫星搜索列表。
可选地，获取所述卫星通讯网络重新规划后的可用卫星信息包括：向所述卫星通讯网络的网络侧发送请求信息，其中，所述请求信息用于请求获取重新规划后的可用卫星信息；接收所述卫星通讯网络的网络侧根据所述请求信息下发的重新规划后的可用卫星信息。
可选地，其特征在于，所述卫星搜索列表包括以下信息至少之一：卫星的经纬度信息、卫星的垂直高度信息、卫星的波束配置信息、卫星的载波信息。
可选地，所述接入卫星的载波实时负荷信息的获取方式包括：接收所述卫星通讯网络的网络侧的广播开销消息，其中，所述广播开销消息中携带有所述接入卫星的载波实时负荷信息。
可选地，根据所述载波实时负荷信息和/或所述前向信号强度信息确定所述接入卫星下的用于接入所述卫星通讯网络的接入载波，并利用确定的所述接入载波通过所述接入卫星接入所述卫星通讯网络包括：根据所述载波实时负荷信息和/或所述前向信号强度信息对所述接入卫星下的接入载 波进行优先接入级别的排序并生成优先级别服务载波列表，其中，所述载波实时负荷信息所指示的载波负载量与优先级别成反比，所述前向信号强度信息所指示的信号质量与所述优先级别成正比；按照所述优先级别服务载波列表所指示的接入级别从高到低的顺序依次选择载波，并尝试利用选择的载波通过所述接入卫星接入所述卫星通讯网络，直到成功为止。
在本公开的另一个实施例中，提供了一种卫星通讯网络的接入方法，包括：计算卫星的载波实时负荷信息；将所述卫星的载波实时负荷信息发送给所述卫星通讯网络的终端，其中，所述卫星的载波实时负荷信息用于所述终端确定用于接入卫星通讯网络的接入卫星和接入载波，并利用所述接入载波并通过所述接入卫星接入所述卫星通讯网络。
可选地，计算所述卫星的载波实时负荷信息包括：通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成所述载波实时负荷信息。
可选地，通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成所述载波实时负荷信息包括：根据载波带宽配置映射出载波接入最大用户数；周期统计当前载波当前接入用户数和前反向负荷带宽比；通过如下公式计算系统载波带宽比：所述系统载波带宽比＝Min(前向负荷带宽比，反向负荷带宽比)；将所述系统载波带宽比、当前载波当前接入用户数和所述载波接入最大用户数的比值，分别与载波负荷判定门限进行比较；当所述系统载波带宽比大于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷超过负荷阈值；当所述系统载波带宽比小于或等于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷未超过负荷阈值；当所述当前载波当前接入用户数和所述载波接入最大用户数的比值大于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷超过负荷阈值；当所述当前载波当前接入用户数和所述载波接入最大用户数的比值小于或等于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷未超过负荷阈值。
可选地，将所述卫星的载波实时负荷信息发送给终端包括：通过在广 播开销消息中携带所述卫星的载波实时负荷信息的方式将所述载波实时负荷信息发送给所述终端。
可选地，所述方法还包括：规划所述终端的可用卫星信息；将所述可用卫星信息发送给所述终端。
可选地，在将所述可用卫星信息发送给所述终端之后，所述方法还包括：确定所述可用卫星信息需要重新规划；重新规划所述终端的可用卫星信息；将重新规划后的可用卫星信息发送给所述终端。
可选地，确定所述可用卫星信息需要重新规划包括：接收来自所述终端的请求信息，其中，所述请求信息用于请求重新规划可用卫星信息。
在本公开的另一个实施例中，提供一种卫星通讯网络的接入装置，包括：确定模块，设置为确定用于接入所述卫星通讯网络的接入卫星；接入模块，设置为根据测量得到的前向信号强度信息和/或所述接入卫星的载波实时负荷信息确定所述接入卫星下的用于接入所述卫星通讯网络的接入载波，并利用确定的所述接入载波通过所述接入卫星接入所述卫星通讯网络。
可选地，所述第一确定模块包括：第一确定单元，设置为确定卫星通讯网络规划的可用卫星信息；配置单元，设置为根据所述可用卫星信息配置卫星搜索列表；第二确定单元，设置为遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星。
可选地，所述第二确定单元包括：第一确定子单元，设置为遍历所述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为所述接入卫星。
可选地，所述第二确定单元包括：第二确定子单元，设置为遍历所述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为所述接入卫星。
可选地，所述装置还包括：获取模块，设置为在根据所述可用卫星信息配置卫星搜索列表之后，获取所述卫星通讯网络重新规划后的可用卫星 信息；第一处理模块，设置为根据所述重新规划后的可用卫星信息重新配置卫星搜索列表。
可选地，所述获取模块包括：第一发送单元，设置为向所述卫星通讯网络的网络侧发送请求信息，其中，所述请求信息用于请求获取重新规划后的可用卫星信息；第一接收单元，设置为接收所述卫星通讯网络的网络侧根据所述请求信息下发的重新规划后的可用卫星信息。
可选地，所述接入模块包括：生成单元，设置为根据所述载波实时负荷信息和/或所述前向信号强度信息对所述接入卫星下的接入载波进行优先接入级别的排序并生成优先级别服务载波列表，其中，所述载波实时负荷信息所指示的载波负载量与优先级别成反比，所述前向信号强度信息所指示的信号质量与所述优先级别成正比；接入单元，设置为按照所述优先级别服务载波列表所指示的接入级别从高到低的顺序依次选择载波，并尝试利用选择的载波通过所述接入卫星接入所述卫星通讯网络，直到成功为止。
在本公开的另一个实施例中，提供一种卫星通讯网络的接入装置，包括：计算模块，设置为计算卫星的载波实时负荷信息；第一发送模块，设置为将所述卫星的载波实时负荷信息发送给所述卫星通讯网络的终端，其中，所述卫星的载波实时负荷信息用于所述终端确定用于接入卫星通讯网络的接入卫星和接入载波，并利用所述接入载波并通过所述接入卫星接入所述卫星通讯网络。
可选地，所述计算模块包括：计算单元，设置为通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成所述载波实时负荷信息。
可选地，所述计算单元包括：映射子单元，设置为根据载波带宽配置映射出载波接入最大用户数；统计子单元，设置为周期统计当前载波当前接入用户数和前反向负荷带宽比；计算子单元，设置为通过如下公式计算系统载波带宽比：所述系统载波带宽比＝Min(前向负荷带宽比，反向负荷带宽比)；比较子单元，设置为将所述系统载波带宽比、当前载波当前接 入用户数和所述载波接入最大用户数的比值，分别与载波负荷判定门限进行比较；第五确定子单元，设置为当所述系统载波带宽比大于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷超过负荷阈值；第六确定子单元，设置为当所述系统载波带宽比小于或等于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷未超过负荷阈值；第七确定子单元，设置为当所述当前载波当前接入用户数和所述载波接入最大用户数的比值大于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷超过负荷阈值；第八确定子单元，设置为当所述当前载波当前接入用户数和所述载波接入最大用户数的比值小于或等于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷未超过负荷阈值。
可选地，所述第一发送模块包括：第二发送单元，设置为通过在广播开销消息中携带所述卫星的载波实时负荷信息的方式将所述载波实时负荷信息发送给所述终端。
可选地，所述装置还包括：规划模块，设置为规划所述终端的可用卫星信息；第二发送模块，设置为将所述可用卫星信息发送给所述终端。
可选地，所述装置还包括：第三确定模块，设置为在将所述可用卫星信息发送给所述终端之后，确定所述可用卫星信息需要重新规划；第二处理模块，设置为重新规划所述终端的可用卫星信息；第三发送模块，设置为将重新规划后的可用卫星信息发送给所述终端。
可选地，所述第三确定模块包括：第二接收单元，设置为接收来自所述终端的请求信息，其中，所述请求信息用于请求重新规划可用卫星信息。
在本公开的另一个实施例中，还提供一种卫星通讯网络的终端，包括：处理器，设置为确定用于接入所述卫星通讯网络的接入卫星；接入器，连接至所述处理器，设置为根据测量得到的前向信号强度信息和/或所述接入卫星的载波实时负荷信息确定所述接入卫星下的用于接入所述卫星通讯网络的接入载波，并利用确定的所述接入载波通过所述接入卫星接入所述 卫星通讯网络。
可选地，所述处理器确定设置为接入所述卫星通讯网络的所述接入卫星包括：确定卫星通讯网络规划的可用卫星信息；根据所述可用卫星信息配置卫星搜索列表；遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星。
在本公开的另一个实施例中，还提供一种卫星通讯网络的网络侧设备，包括：计算器，设置为计算卫星的载波实时负荷信息；通讯装置，连接至所述计算器，设置为将所述卫星的载波实时负荷信息发送给所述卫星通讯网络的终端，其中，所述卫星的载波实时负荷信息用于所述终端确定用于接入卫星通讯网络的接入卫星和接入载波，并利用所述接入载波并通过所述接入卫星接入所述卫星通讯网络。
可选地，所述计算器计算所述卫星的载波实时负荷信息包括：通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成所述载波实时负荷信息。
在本公开的另一个实施例中，还提供一种卫星通讯网络的接入系统，包括上述任一项所述的终端，以及上述任一项所述的网络侧设备。
根据本公开的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以上各步骤的程序代码。
通过本公开，由于确定用于接入卫星通讯网络的接入卫星；根据测量得到的前向信号强度信息和/或接入卫星的载波实时负荷信息确定接入卫星下的用于接入卫星通讯网络的接入载波，并利用确定的接入载波通过接入卫星接入到卫星通讯网络。因此，可以解决相关技术中卫星通讯系统频谱利用率低、带宽资源利用不均衡不可控、以及用户服务质量得不到保证的问题，达到提高整个系统带宽利用率以及用户服务质量的效果。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本申请的一 部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1是本公开实施例的卫星通讯网络的接入方法的移动终端的硬件结构框图；
图2是根据本公开实施例的卫星通讯网络的接入方法流程图(一)；
图3是根据本公开实施例的卫星通讯网络的接入方法流程图(二)；
图4是本具体实施例中智能接入的基本处理流程图；
图5是本具体实施例中智能接入的快速接入处理流程图；
图6是本具体实施例中基于载波负载的智能接入的处理流程图；
图7是本公开具体实施例中基于前向信噪比的智能接入处理流程图；
图8是本公开实施例中智能接入的载波负载计算处理流程图；
图9是本具体实施例中智能接入的卫星搜索列表更新处理流程图；
图10是根据本公开实施例的卫星通讯网络的接入装置的结构框图(一)；
图11是根据本公开实施例的卫星通讯网络的接入装置的确定模块1002的结构框图；
图12是根据本公开实施例的卫星通讯网络的接入装置的第二确定单元1106的结构框图(一)；
图13是根据本公开实施例的卫星通讯网络的接入装置的第二确定单元1106的结构框图(二)；
图14是根据本公开实施例的卫星通讯网络的接入装置的优选结构框图；
图15是根据本公开实施例的卫星通讯网络的接入装置的结构框图(二)；
图16是根据本公开实施例的卫星通讯网络的接入装置的计算模块 1502的结构框图；
图17是根据本公开实施例的卫星通讯网络的接入装置的计算单元1602的结构框图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本公开。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本公开的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
本申请实施例所提供的方法实施例可以在移动终端、计算机终端或者类似的运算装置中执行。以运行在移动终端上为例，图1是本公开实施例的卫星通讯网络的接入方法的移动终端的硬件结构框图。如图1所示，移动终端10可以包括一个或多个(图1中仅示出一个)处理器102(处理器102可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)、设置为存储数据的存储器104、以及设置为通信功能的传输装置106。本领域普通技术人员可以理解，图1所示的结构仅为示意，其并不对上述电子装置的结构造成限定。例如，移动终端10还可包括比图1中所示更多或者更少的组件，或者具有与图1所示不同的配置。
存储器104可设置为存储应用软件的软件程序以及模块，如本公开实施例中的卫星通讯网络的接入方法对应的程序指令/模块，处理器102通过运行存储在存储器104内的软件程序以及模块，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器104可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器104可进一步包括相对于处理器102远程设置的存储器，这些远程存储器可以通过网络连接至移动终端10。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106设置为经由一个网络接收或者发送数据。上述的网络具体实例可包括移动终端10的通信供应商提供的无线网络。在一个实例中，传输装置106包括一个网络适配器(Network Interface Controller，简称为NIC)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置106可以为射频(Radio Frequency，简称为RF)模块，其设置为通过无线方式与互联网进行通讯。
锁定卫星阶段包括接入终端根据本地经纬度位置信息、以及卫星配置搜索列表，从中遍历选择卫星尝试锁定，如果锁定服务卫星成功，将接收对应服务卫星载波的广播开销消息，并发起接入系统请求，如果锁定不成功，接入终端继续选择卫星搜索列表中的其他卫星尝试锁定，直到接入终端锁定卫星为止。
当卫星通讯系统组网中配置了多个卫星、多个波束应用覆盖、以及多个载波应用时，以上卫星通讯系统中锁定卫星接入网络的机制存在如下几个问题：按照以上接入机制，接入终端接入系统时，选择服务卫星不可控，一般接入终端会通过遍历搜索卫星尝试锁定，或优先选择离本地位置垂直距离最近的卫星进行锁定，这对于一个多卫星组网的系统下，其各卫星信号覆盖地理范围可能不一样，覆盖范围的信号强度也可能不一样，接入终端很可能会选择一个负载高的卫星，或信号覆盖弱的卫星进行服务，因此这样的选择服务卫星方法存在卫星间资源利用不均衡、频谱利用率低等问题。
针对上述技术问题，本实施例中提供了一种卫星通讯网络的接入方法，图2是根据本公开实施例的卫星通讯网络的接入方法流程图(一)，如图2所示，该流程包括如下步骤：
步骤S202，确定用于接入上述卫星通讯网络的接入卫星；
步骤S204，根据测量得到的前向信号强度信息和/或上述接入卫星的述载波实时负荷信息确定上述接入卫星下的用于接入上述卫星通讯网络的接入载波，并利用确定的上述接入载波通过上述接入卫星接入上述卫星 通讯网络。
通过上述步骤，解决了相关技术中卫星通讯系统频谱利用率低、带宽资源利用不均衡不可控、以及用户服务质量得不到保证的问题，达到提高整个系统带宽利用率以及用户服务质量的效果。
在本实施例中，可以先获取接入卫星的载波实时负荷信息和/或测量得到前向信号强度信息，再利用接入卫星的载波实时负荷信息和/或测量得到前向信号强度信息确定所述接入卫星下的用于接入所述卫星通讯网络的接入载波，也可以直接根据测量得到的前向信号强度信息和/或上述接入卫星的载波实时负荷信息确定接入卫星下的用于接入上述卫星通讯网络的接入载波。
可选地，上述步骤的执行主体可以为卫星通讯网络中的终端(比如手机或其他接收设备)，但不限于此。
在一个可选的实施例中，确定用于接入上述卫星通讯网络的上述接入卫星可以包括：确定卫星通讯网络规划的可用卫星信息；根据上述可用卫星信息配置卫星搜索列表；遍历上述卫星搜索列表，并从上述卫星搜索列表中确定用于接入上述卫星通讯网络的上述接入卫星。
在一个可选的实施例中，遍历上述卫星搜索列表，并从上述卫星搜索列表中确定用于接入上述卫星通讯网络的上述接入卫星可以包括：遍历上述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为上述接入卫星。
在一个可选的实施例中，遍历上述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为上述接入卫星包括以下之一：遍历上述卫星搜索列表，确定上述卫星搜索列表中载波实时负荷信息所指示的负荷未超过上述第一负荷阈值的所有卫星，并从确定的所有卫星中确定信号强度高于第一强度阈值的卫星为上述接入卫星；遍历上述卫星搜索列表，确定上述卫星搜索列表中载波实时负荷信息所指示的负荷未超过上述第一负荷阈值的所有卫星，并从确定的所有卫星中确定负荷最低 的卫星为上述接入卫星；遍历上述卫星搜索列表，确定最先遍历到的载波实时负荷信息所指示的负荷未超过上述第一负荷阈值的卫星为上述接入卫星。在本实施例中，通过遍历搜索到的卫星的载波实时负荷信息不一定满足终端的需求，只有在载波实时负荷信息为高负荷状态时，终端才会接入锁定的卫星，这样既能保证系统各载波间负荷的均衡，又能有效的提高系统频谱利用率。
在一个可选的实施例中，其特征在于，遍历上述卫星搜索列表，并从上述卫星搜索列表中确定用于接入上述卫星通讯网络的上述接入卫星可以包括：遍历上述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为上述接入卫星。
在一个可选的实施例中，遍历所述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为所述接入卫星包括以下之一：遍历所述卫星搜索列表，确定所述载波前向信号强度信息所指示的信号强度超过所述第二强度阈值的所有卫星，并从确定的所有卫星中确定信号强度最高的卫星为所述接入卫星；遍历所述卫星搜索列表，确定所述载波前向信号强度信息所指示的信号强度超过所述第二强度阈值的所有卫星，并从确定的所有卫星中确定负荷低于第二负荷阈值的卫星为所述接入卫星；遍历所述卫星搜索列表，确定最先遍历到的载波前向信号强度信息所指示的信号强度超过所述第二强度阈值的卫星为所述接入卫星。
在一个可选的实施例中，在根据上述可用卫星信息配置卫星搜索列表之后，还可以包括：获取上述卫星通讯网络重新规划后的可用卫星信息；根据上述重新规划后的可用卫星信息重新配置卫星搜索列表。
在一个可选的实施例中，获取上述卫星通讯网络重新规划后的可用卫星信息可以包括：向上述卫星通讯网络的网络侧发送请求信息，其中，上述请求信息用于请求获取重新规划后的可用卫星信息；接收上述卫星通讯网络的网络侧根据上述请求信息下发的重新规划后的可用卫星信息。在本 实施例中，卫星通讯网络的网络侧可以是基站，对卫星信息的更新可以是终端主动发起更新请求，请求网络侧对卫星信息进行更新，也可以是网络侧将更新后的卫星信息发送给终端，通知终端进行卫星信息更新。
在一个可选的实施例中，上述卫星搜索列表可以包括以下信息至少之一：卫星的经纬度信息、卫星的垂直高度信息、卫星的波束配置信息、卫星的载波信息。
在一个可选的实施例中，上述接入卫星的载波实时负荷信息的获取方式可以包括：接收上述卫星通讯网络的网络侧广播的广播开销消息，其中，上述广播开销消息中携带有上述接入卫星的载波实时负荷信息。
在一个可选的实施例中，根据上述载波实时负荷信息和/或上述前向信号强度信息确定上述接入卫星下的用于接入上述卫星通讯网络的接入载波，并利用确定的上述接入载波通过上述接入卫星接入上述卫星通讯网络可以包括：根据上述载波实时负荷信息和/或上述前向信号强度信息对上述接入卫星下的接入载波进行优先接入级别的排序并生成优先级别服务载波列表，其中，上述载波实时负荷信息所指示的载波负载量与优先级别成反比，上述前向信号强度信息所指示的信号质量与上述优先级别成正比；按照上述优先级别服务载波列表所指示的接入级别从高到低的顺序依次选择载波，并尝试利用选择的载波通过上述接入卫星接入上述卫星通讯网络，直到成功为止。
通过上述实施例，可以实现接入终端在多卫星、多波束、多载波组网的卫星通讯系统下，选择前向信噪比相对较好的载波，负荷相对较低的载波进行接入网络应用，这样即能保证系统各载波间负荷均衡，又能有效的提高系统频谱利用率，对提高整个系统吞吐量以及用户服务质量有非常重要作用。
在本实施例中提供了一种卫星通讯网络的接入方法，图3是根据本公开实施例的卫星通讯网络的接入方法流程图(二)，如图3所示，该流程包括如下步骤：
步骤S302，计算卫星的载波实时负荷信息；
步骤S304，将上述卫星的载波实时负荷信息发送给上述卫星通讯网络的终端，其中，上述卫星的载波实时负荷信息用于上述终端确定用于接入卫星通讯网络的接入卫星和接入载波，并利用上述接入载波并通过上述接入卫星接入上述卫星通讯网络。
通过上述步骤，解决了相关技术中卫星通讯系统频谱利用率低、带宽资源利用不均衡不可控、以及用户服务质量得不到保证的问题，达到提高整个系统带宽利用率以及用户服务质量的效果。
可选地，上述步骤的执行主体可以为网络侧(比如网络控制中心、基站)，但不限于此。
在一个可选的实施例中，计算上述卫星的载波实时负荷信息可以包括：通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成上述载波实时负荷信息。
在一个可选的实施例中，通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成上述载波实时负荷信息包括：根据载波带宽配置映射出载波接入最大用户数；周期统计当前载波当前接入用户数和前反向负荷带宽比；通过如下公式计算系统载波带宽比：上述系统载波带宽比＝Min(前向负荷带宽比，反向负荷带宽比)；将上述系统载波带宽比、当前载波当前接入用户数和上述载波接入最大用户数的比值，分别与载波负荷判定门限进行比较；当上述系统载波带宽比大于上述载波负荷判定门限时，确定上述载波实时负荷信息所指示的负荷超过负荷阈值；当上述系统载波带宽比小于或等于上述载波负荷判定门限时，确定上述载波实时负荷信息所指示的负荷未超过负荷阈值；当上述当前载波当前接入用户数和上述载波接入最大用户数的比值大于上述载波负荷判定门限时，确定上述载波实时负荷信息所指示的负荷超过负荷阈值；当上述当前载波当前接入用户数和上述载波接入最大用户数的比值小于或等于上述载波负荷判定门限时，确定上述载波实时负荷信息所指示的负荷未超过负荷阈值。
在一个可选的实施例中，将上述卫星的载波实时负荷信息发送给终端可以包括：通过在广播开销消息中携带上述卫星的载波实时负荷信息的方式将上述载波实时负荷信息发送给上述终端。
在一个可选的实施例中，上述方法还可以包括：规划上述终端的可用卫星信息；将上述可用卫星信息发送给上述终端。
在一个可选的实施例中，在将上述可用卫星信息发送给上述终端之后，上述方法还可以包括：确定上述可用卫星信息需要重新规划；重新规划上述终端的可用卫星信息；将重新规划后的可用卫星信息发送给上述终端。
在一个可选的实施例中，确定上述可用卫星信息需要重新规划可以包括：接收来自上述终端的请求信息，其中，上述请求信息用于请求重新规划可用卫星信息。
通过上述实施例，可以实现接入终端在多卫星、多波束、多载波组网的卫星通讯系统下，选择前向信噪比相对较好的载波，负荷相对较低的载波进行接入网络应用，这样即能保证系统各载波间负荷均衡，又能有效的提高系统频谱利用率，对提高整个系统吞吐量以及用户服务质量有非常重要作用。
下面结合具体实施例对本公开进行说明：
具体实施例1：
图4是本具体实施例中智能接入的基本处理流程图，如图4所示，卫星通讯系统网络侧周期计算载波实时负荷信息CellLoadLevel，并通过广播开销消息发送，接入终端侧根据系统可用卫星信息配置卫星搜索列表，并遍历卫星搜索列表尝试锁定卫星，接收对应锁定卫星载波实时负荷信息CellLoadLevel，以及测量前向信号强度信息(信噪比)FrowordSINRLevel，再根据遍历接收的载波实时负荷信息、以及测量的前向信号强度信息，生成优先级服务载波列表，接入终端按照服务载波列表的优先级顺序发起接入网络请求，直到接入网络成功为止，包括以下步骤：
步骤S401，接入终端智能接入功能开始；
步骤S402，网络侧以5s为周期(周期可以进行调整，在本实施例中优选为5s)，通过统计载波接入用户数、前反向载波带宽负荷比，生成载波负荷(对应上述中的载波实时负荷信息)等级信息CellLoadLevel，CellLoadLevel分为高负荷、中负荷、低负荷3个等级，其中，负荷阈值可以包括第一负荷阈值和第二负荷阈值，第一负荷阈值大于第二负荷阈值，载波实时负荷信息所指示的负荷没有超过第二负荷阈值时可以为低负荷等级，载波实时负荷信息所指示的负荷超过第二负荷阈值且未超过第一负荷阈值可以为中负荷等级，载波实时负荷信息所指示的负荷超过第一负荷阈值时可以为高负荷等级；并通过广播开销信息发送；
步骤403，接入终端侧根据卫星通讯系统规划的可用卫星信息配置卫星搜索列表，卫星搜索列表主要包括卫星经纬度信息、垂直高度信息、波束配置信息、以及载波信息；
步骤404，接入终端侧遍历卫星搜索列表，尝试锁定卫星并接收对应载波的广播开销消息，如果锁定成功则记录对应卫星获取的载波负荷等级CellLoadLevel、以及前向信噪比测量信息等级FrowordSINRLevel，其中信噪比测量信息等级FrowordSINRLevel可以分为信号质量好、信号质量一般、信号质量差3个等级，信号质量好的；
步骤405，接入终端侧对记录的载波负荷等级CellLoadLevel、以及信噪比等级FrowordSINRLevel信息进行优先级排序，生成优先级服务载波列表，优先级排序规则：FrowordSINRLevel信号质量越好优先级越高，CellLoadLevel负载越小优先级越高；
步骤406，接入终端侧按照服务载波优先级列表从高优先级开始选择载波尝试发起业务接入，如果接入成功则进入107单元，否则选择次优先级服务载波再尝试发起业务接入，直到接入成功为止；
步骤407，接入终端智能接入功能结束。
具体实施例2：
图5是本具体实施例中智能接入的快速接入处理流程图，如图5所示，卫星通讯系统网络侧周期计算载波实时负荷信息CellLoadLevel，并通过广播开销消息发送，接入终端侧根据系统可用卫星信息配置卫星搜索列表，并遍历卫星搜索列表尝试锁定卫星，接收对应锁定卫星载波实时负荷信息CellLoadLevel，以及测量前向信号强度信息(信噪比)FrowordSINRLevel，当FrowordSINRLevel等级为非信号质量差(对应上述强度阈值的判断)，并且CellLoadLevel为非高负载时，接入终端直接在该载波上发起业务接入，直到接入网络成功为止，包括以下步骤：
步骤501，接入终端智能接入的快速接入功能开始；
步骤502，网络侧以5s为周期，通过统计载波接入用户数、前反向载波带宽负荷比，生成载波负荷等级信息CellLoadLevel，CellLoadLevel分为高负荷、中负荷、低负荷3个等级；并通过广播开销消息发送；
步骤503，接入终端侧根据卫星通讯系统规划的可用卫星信息配置卫星搜索列表，卫星搜索列表主要包括卫星经纬度信息、垂直高度信息、波束配置信息、以及载波信息；
步骤504，接入终端侧遍历卫星搜索列表，尝试锁定卫星并接收对应载波的广播开销消息，如果锁定成功则记录对应卫星获取的载波负荷等级CellLoadLevel、以及前向信噪比测量信息等级FrowordSINRLevel，其中信噪比测量信息等级FrowordSINRLevel可以分为信号质量好、信号质量一般、信号质量差3个等级，其中，强度阈值可以包括第一强度阈值和第二强度阈值，第一强度阈值大于第二强度阈值，载波前向信号强度信息所指示的信号强度没有超过第一强度阈值时，可以为信号质量好的等级，载波前向信号强度信息所指示的信号强度超过第二强度阈值且未超过第一强度阈值时，可以为信号质量一般的等级，载波前向信号强度信息所指示的信号强度超过强度阈值时，可以为信号质量差的等级；
步骤505，当FrowordSINRLevel等级为非信号质量差，并且CellLoadLevel为非高负载时，接入终端直接在该载波上发起业务接入；
步骤506，接入终端智能接入的快速接入功能结束。
具体实施例3：
图6是本具体实施例中基于载波负载的智能接入的处理流程图，如图6所示，卫星通讯系统网络侧周期计算载波实时负荷信息CellLoadLevel值(CellLoadLevel值通过1bit表示，为0时表示载波非高负荷状态(对应上述中负荷阈值的判断)，为1时表示载波高负荷状态)并通过广播开销消息发送，接入终端侧根据系统可用卫星信息配置卫星搜索列表，并遍历卫星搜索列表尝试锁定卫星，接收对应锁定卫星载波实时负荷信息CellLoadLevel，当CellLoadLevel值为0时，接入终端选择接入当前锁定卫星载波，否则继续选择卫星搜索列表的其他卫星尝试锁定，直到接入网络成功为止，包括以下步骤：
步骤601，接入终端基于载波负载的智能接入功能开始；
步骤602，接入网络侧以5s为周期，通过统计载波接入用户数、前反向载波带宽负荷比，生成载波负荷等级信息CellLoadLevel，CellLoadLevel分为高负荷、非高负荷2个状态；并通过广播开销消息发送；
步骤603，接入终端侧根据卫星通讯系统规划的可用卫星信息配置卫星搜索列表，卫星搜索列表主要包括卫星经纬度信息、垂直高度信息、波束配置信息、以及载波信息；
步骤604，接入终端侧遍历卫星搜索列表，尝试锁定卫星并接收对应载波的广播开销消息，如果锁定成功则记录对应卫星获取的载波实时负荷信息CellLoadLevel；
步骤605，当CellLoadLevel值为非高负荷状态时，接入终端直接在该 卫星载波上发起业务接入，否则进入604单元；
步骤606，接入终端基于载波负载的智能接入功能结束。
具体实施例4：
图7是本公开具体实施例中基于前向信噪比的智能接入处理流程图，如图7所示，卫星通讯系统中接入终端侧根据系统可用卫星信息配置卫星搜索列表，并遍历卫星搜索列表尝试锁定卫星，测量卫星载波的前向信号强度信息(信噪比)FrowordSINRLevel(FrowordSINRLevel值通过1bit表示，为0时表示前向信号条件好，为1时表示前向信号条件差)，当FrowordSINRLevel值为0时，接入终端直接在该载波上发起业务接入，否则选择卫星搜索列表中其他卫星尝试锁定，直到接入网络成功为止，包括以下步骤：
步骤701，接入终端基于前向信噪比的智能接入功能开始；
步骤702，接入终端侧根据卫星通讯系统规划的可用卫星信息配置卫星搜索列表，卫星搜索列表主要包括卫星经纬度信息、垂直高度信息、波束配置信息、以及载波信息；
步骤703，接入终端侧遍历卫星搜索列表，尝试锁定卫星并接收对应载波的广播开销消息，如果锁定成功则测量对应卫星载波的前向信噪比信息FrowordSINRLevel；
步骤704，对信噪比质量进行判断，当FrowordSINRLevel值为0时，接入终端直接在该载波上发起业务接入，否则进入703单元；
步骤705，接入终端基于前向信噪比的智能接入功能结束。
具体实施例5：
图8是本公开实施例中智能接入的载波负载计算处理流程图，如图8 所示，因为载波负载信息是通过系统广播消息发送，为了节省空口带宽资源，载波实时负荷信息可以通过1个bit表示，0表示非高负载，1表示高负载，计算周期和广播发送周期可以设置为5s。根据系统载波配置带宽SysBandWidth(配置为2MHz)，生成载波最大支持用户数TotalUseNum(支持100个用户)，再根据系统前反向调度时隙资源空闲比(如：系统1s周期内，有300ms没有调度数据，表示当前空闲比为300/1000＝30％)，得到前向负荷带宽比和反向负荷带宽比(负荷带宽比＝(1-空闲比)，如空闲比为30％，那么负荷带宽比就是70％)，系统负荷带宽比＝Min(前向负荷带宽比，反向负荷带宽比)，统计当前系统接入用户数CurUseNum，如果CurUseNum/TotalUseNum>80％，或“系统负荷带宽比”>80％，表示载波负载为高负载，其他情况为非高负载，其主要包括以下步骤：
步骤801，接入终端智能接入的载波负载计算功能开始；
步骤802，接入网络根据载波带宽配置，映射出载波最大支持用户数；
步骤803，接入网络以5s为周期统计当前载波当前接入用户数、前反向负荷带宽比；
步骤804，系统载波负荷带宽比＝Min(前向负荷带宽比，反向负荷带宽比)；
步骤805，把计算的系统载波负荷带宽比、以及统计的当前载波用户数和最大允许用户数比值，分别和载波负荷判定门限进行比较，判定门限设置为80％(判定门限可以不是固定值，本实施例中优选为80％)；
步骤806，如果系统载波负荷带宽比大于载波负荷判定门限、或用户数比值大于载波负荷判定门限，则系统载波负载为高负载，否之为低负载。
步骤807，接入终端智能接入的载波负载计算功能结束。
具体实施例6：
图9是本具体实施例中智能接入的卫星搜索列表更新处理流程图，如图9所示，在接入终端侧通过系统运营可用卫星信息，配置卫星搜索列表，列表信息包括卫星经纬度、垂直高度、波束、载波信息，因为接入终端载体可以是船只、飞机等移动物体，所以其在不同的地理覆盖位置下卫星搜索列表需要不断的更新，这样接入终端才能快速有效的锁定服务卫星(对应上述中的接入卫星)载波，该实例通过接入终端接入网络后，通过业务信道主动向接入网络侧请求卫星搜索列表更新，接入网络根据接入终端的位置信息以及系统运营可用卫星覆盖信息生成新的卫星搜索列表发送给接入终端，接入终端更新卫星搜索列表，其主要包括以下步骤：
步骤901，接入终端智能接入的卫星搜索列表更新功能开始；
步骤902，接入终端周期发起卫星搜索列表更新请求；
步骤903，接入网络根据接入终端经纬度信息，以及系统可用卫星信息地理覆盖情况，生成新的卫星搜索列表，发送给接入终端；
步骤904，接入终端更新卫星搜索列表；
步骤905，接入终端智能接入的卫星搜索列表更新功能结束。
综上所述，通过网络侧周期广播发送系统载波实时负荷信息，接入终端侧通过配置卫星锁定基本列表、搜索锁定服务卫星，并接收相应服务卫星载波实时负荷信息、以及测量前向信号强度信息，选择一个合适的服务卫星、服务波束、以及服务载波接入卫星通讯网络进行业务应用，可以智能控制系统下接入终端选择合适的服务卫星、波束、载波，对提高整个系统带宽利用率以及用户服务质量有重要作用。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理 解，本公开的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本公开各个实施例所述的方法。
在本实施例中还提供了一种卫星通讯网络的接入装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图10是根据本公开实施例的卫星通讯网络的接入装置的结构框图(一)，如图10所示，该装置包括：确定模块1002和接入模块1004，下面对该装置进行说明：
确定模块1002，设置为确定用于接入上述卫星通讯网络的接入卫星；接入模块1004，连接至上述第一确定模块1002，设置为根据测量得到的前向信号强度信息和/或上述接入卫星的载波实时负荷信息确定上述接入卫星下的用于接入上述卫星通讯网络的接入载波，并利用确定的上述接入载波通过上述接入卫星接入上述卫星通讯网络。
图11是根据本公开实施例的卫星通讯网络的接入装置的确定模块1002的结构框图，如图11所示，上述确定模块1002可以包括：第一确定单元1102、配置单元1104和第二确定单元1106，下面对确定模块1002进行说明：
第一确定单元1102，设置为确定卫星通讯网络规划的可用卫星信息；配置单元1104，连接至上述第一确定单元1102，设置为根据上述可用卫星信息配置卫星搜索列表；第二确定单元1106，连接至上述配置单元1104，设置为遍历上述卫星搜索列表，并从上述卫星搜索列表中确定用于接入上述卫星通讯网络的上述接入卫星。
图12是根据本公开实施例的卫星通讯网络的接入装置的第二确定单元1106的结构框图(一)，如图12所示，上述第二确定单元1106可以包括：第一确定子单元1202，下面对第二确定单元1106进行说明：
第一确定子单元1202，设置为遍历上述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为上述接入卫星。
在一个可选的实施例中，上述第一确定子单元1202通过以下之一的方式遍历上述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为上述接入卫星：遍历上述卫星搜索列表，确定上述卫星搜索列表中载波实时负荷信息所指示的负荷未超过上述第一负荷阈值的所有卫星，并从确定的所有卫星中确定信号强度高于第一强度阈值的卫星为上述接入卫星；遍历上述卫星搜索列表，确定上述卫星搜索列表中载波实时负荷信息所指示的负荷未超过上述第一负荷阈值的所有卫星，并从确定的所有卫星中确定负荷最低的卫星为上述接入卫星；遍历上述卫星搜索列表，确定最先遍历到的载波实时负荷信息所指示的负荷未超过上述第一负荷阈值的卫星为上述接入卫星。
图13是根据本公开实施例的卫星通讯网络的接入装置的第二确定单元1106的结构框图(二)，如图13所示，上述第二确定单元1106可以包括：第二确定子单元1302，下面对第二确定单元1106进行说明：
第二确定子单元1302，设置为遍历上述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为上述接入卫星。
在一个可选的实施例中，上述第二确定子单元1302通过以下方式之一遍历上述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为上述接入卫星：遍历上述卫星搜索列表，确定上述载波前向信号强度信息所指示的信号强度超过上述第二强度阈值的所有卫星，并从确定的所有卫星中确定信号强度最高的卫星为上述接入卫星；遍历上述卫星搜索列表，确定上述载波前向信号强度信息所指示的信 号强度超过上述第二强度阈值的所有卫星，并从确定的所有卫星中确定负荷低于第二负荷阈值的卫星为上述接入卫星；遍历上述卫星搜索列表，确定最先遍历到的载波前向信号强度信息所指示的信号强度超过上述第二强度阈值的卫星为上述接入卫星。
图14是根据本公开实施例的卫星通讯网络的接入装置的优选结构框图，如图14所示，上述装置还包括：获取模块1402和第一处理模块1404，下面对该装置进行说明：
获取模块1402，连接至上述第一确定模块1002，设置为在根据上述可用卫星信息配置卫星搜索列表之后，获取上述卫星通讯网络重新规划后的可用卫星信息；第一处理模块1404，连接至上述获取模块1402，设置为根据上述重新规划后的可用卫星信息重新配置卫星搜索列表。
在一个可选的实施例中，在上述获取模块1402可以包括：第一发送单元，设置为向上述卫星通讯网络的网络侧发送请求信息，其中，上述请求信息用于请求获取重新规划后的可用卫星信息；第一接收单元，设置为接收上述卫星通讯网络的网络侧根据上述请求信息下发的重新规划后的可用卫星信息。
在一个可选的实施例中，上述卫星搜索列表可以包括以下信息至少之一：卫星的经纬度信息、卫星的垂直高度信息、卫星的波束配置信息、卫星的载波信息。
在一个可选的实施例中，上述接入卫星的载波实时负荷信息的获取方式可以包括：接收网络侧广播的广播开销消息，其中，上述广播开销消息中携带有上述接入卫星的载波实时负荷信息。
在一个可选的实施例中，在上述接入模块可以包括：生成单元，设置为根据上述载波实时负荷信息和/或上述前向信号强度信息对上述接入卫星下的接入载波进行优先接入级别的排序并生成优先级别服务载波列表，其中，上述载波实时负荷信息所指示的载波负载量与优先级别成反比，上述前向信号强度信息所指示的信号质量与上述优先级别成正比；接入单元， 设置为按照上述优先级别服务载波列表所指示的接入级别从高到低的顺序依次选择载波，并尝试利用选择的载波通过上述接入卫星接入上述卫星通讯网络，直到成功为止。
图15是根据本公开实施例的卫星通讯网络的接入装置的结构框图(二)，如图15所示，上述装置可以包括：计算模块1502和第一发送模块1504，下面对该装置进行说明：
计算模块1502，设置为计算卫星的载波实时负荷信息；第一发送模块1504，连接至上述计算模块1502，设置为将上述卫星的载波实时负荷信息发送给上述卫星通讯网络的终端，其中，上述卫星的载波实时负荷信息用于上述终端确定用于接入卫星通讯网络的接入卫星和接入载波，并利用上述接入载波并通过上述接入卫星接入上述卫星通讯网络。
图16是根据本公开实施例的卫星通讯网络的接入装置的计算模块1502的结构框图，如图16所示，计算模块1502可以包括计算单元1602设置为通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成上述载波实时负荷信息。
图17是根据本公开实施例的卫星通讯网络的接入装置的计算单元1602的结构框图，如图17所示，上述计算单元1602可以包括：映射子单元1702、统计子单元1704、计算子单元1706、比较子单元1708、第五确定子单元1710、第六确定子单元1712、第七确定子单元1714和第八确定子单元1716，下面对计算单元1602进行说明：
映射子单元1702，设置为根据载波带宽配置映射出载波接入最大用户数；统计子单1704，连接至上述映射子单元1702，设置为周期统计当前载波当前接入用户数和前反向负荷带宽比；计算子单元1706，连接至上述统计子单元1704，设置为通过如下公式计算系统载波带宽比：上述系统载波带宽比＝Min(前向负荷带宽比，反向负荷带宽比)；比较子单元1708，连接至上述计算子单元1706，设置为将上述系统载波带宽比、当前载波当前接入用户数和上述载波接入最大用户数的比值，分别与载波负荷判定门 限进行比较；第五确定子单元1710，连接至上述比较子单元1708，设置为当上述系统载波带宽比大于上述载波负荷判定门限时，确定上述载波实时负荷信息所指示的负荷超过负荷阈值；第六确定子单元1712，连接至上述比较子单元1708，设置为当上述系统载波带宽比小于或等于上述载波负荷判定门限时，确定上述载波实时负荷信息所指示的负荷未超过负荷阈值；第七确定子单元1714，连接至上述比较子单元1708，设置为当上述当前载波当前接入用户数和上述载波接入最大用户数的比值大于上述载波负荷判定门限时，确定上述载波实时负荷信息所指示的负荷超过负荷阈值；第八确定子单元1716，比较子单元1708，设置为当上述当前载波当前接入用户数和上述载波接入最大用户数的比值小于或等于上述载波负荷判定门限时，确定上述载波实时负荷信息所指示的负荷未超过负荷阈值。
在一个可选的实施例中，上述第一发送模块可以包括：第二发送单元，设置为通过在广播开销消息中携带上述卫星的载波实时负荷信息的方式将上述载波实时负荷信息发送给上述终端。
在一个可选的实施例中，上述装置还可以包括：规划模块，设置为规划上述终端的可用卫星信息；第二发送模块，设置为将上述可用卫星信息发送给上述终端。
在一个可选的实施例中，在将上述可用卫星信息发送给上述终端之后，上述装置还可以包括：第三确定模块，设置为在将上述可用卫星信息发送给所述终端之后，确定上述可用卫星信息需要重新规划；第二处理模块，设置为重新规划上述终端的可用卫星信息；第三发送模块，设置为将重新规划后的可用卫星信息发送给上述终端。
在一个可选的实施例中，上述第三确定模块可以包括：第二接收单元，设置为接收来自上述终端的请求信息，其中，上述请求信息用于请求重新规划可用卫星信息。
根据本公开的另一个实施例，还提供一种卫星通讯网络的终端，包括：处理器，设置为确定用于接入上述卫星通讯网络的接入卫星；接入器，连 接至上述处理器，设置为根据测量得到的前向信号强度信息和/或上述接入卫星的载波实时负荷信息确定上述接入卫星下的用于接入上述卫星通讯网络的接入载波，并利用确定的上述接入载波通过上述接入卫星接入上述卫星通讯网络。
在一个可选的实施例中，上述处理器确定设置为接入上述卫星通讯网络的上述接入卫星包括：确定卫星通讯网络规划的可用卫星信息；根据上述可用卫星信息配置卫星搜索列表；遍历上述卫星搜索列表，并从上述卫星搜索列表中确定用于接入上述卫星通讯网络的上述接入卫星。
根据本公开的另一个实施例，还提供一种卫星通讯网络的网络侧设备，包括：计算器，设置为计算卫星的载波实时负荷信息；通讯装置，连接至上述计算器，设置为将上述卫星的载波实时负荷信息发送给上述卫星通讯网络的终端，其中，上述卫星的载波实时负荷信息用于上述终端确定用于接入卫星通讯网络的接入卫星和接入载波，并利用上述接入载波并通过上述接入卫星接入上述卫星通讯网络。
在一个可选的实施例中，上述计算器计算上述卫星的载波实时负荷信息包括：通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成上述载波实时负荷信息。
根据本公开的另一个实施例，还提供一种卫星通讯网络的接入系统，包括上述任一实施例中所述的终端，以及上述任一实施例中所述的网络侧设备。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
本公开的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以上各步骤的程序代码。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random  Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行以上各步骤。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本公开的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本公开不限制于任何特定的硬件和软件结合。
以上所述仅为本公开的优选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。
工业实用性
如上所述，本公开实施例提供的一种卫星通讯网络的接入方法及装置，具有以下有益效果：解决了相关技术中卫星通讯系统频谱利用率低、带宽资源利用不均衡不可控、以及用户服务质量得不到保证的问题，达到提高整个系统带宽利用率以及用户服务质量的效果。

Claims (38)

  1. 一种卫星通讯网络的接入方法，包括：
    确定用于接入所述卫星通讯网络的接入卫星；
    根据测量得到的前向信号强度信息和/或所述接入卫星的载波实时负荷信息确定所述接入卫星下的用于接入所述卫星通讯网络的接入载波，并利用确定的所述接入载波通过所述接入卫星接入所述卫星通讯网络。
  2. 根据权利要求1所述的方法，其中，确定用于接入所述卫星通讯网络的所述接入卫星包括：
    确定卫星通讯网络规划的可用卫星信息；
    根据所述可用卫星信息配置卫星搜索列表；
    遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星。
  3. 根据权利要求2所述的方法，其中，遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星包括：
    遍历所述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为所述接入卫星。
  4. 根据权利要求3所述的方法，其中，遍历所述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为所述接入卫星包括以下之一：
    遍历所述卫星搜索列表，确定所述卫星搜索列表中载波实时负荷信息所指示的负荷未超过所述第一负荷阈值的所有卫星，并从确定的所有卫星中确定信号强度高于第一强度阈值的卫星为所述接入卫星；
    遍历所述卫星搜索列表，确定所述卫星搜索列表中载波实时负荷信息所指示的负荷未超过所述第一负荷阈值的所有卫星，并从确定的所有卫星中确定负荷最低的卫星为所述接入卫星；
    遍历所述卫星搜索列表，确定最先遍历到的载波实时负荷信息所指示的负荷未超过所述第一负荷阈值的卫星为所述接入卫星。
  5. 根据权利要求2所述的方法，其中，遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星包括：
    遍历所述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为所述接入卫星。
  6. 根据权利要求5所述的方法，其中，遍历所述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为所述接入卫星包括以下之一：
    遍历所述卫星搜索列表，确定所述载波前向信号强度信息所指示的信号强度超过所述第二强度阈值的所有卫星，并从确定的所有卫星中确定信号强度最高的卫星为所述接入卫星；
    遍历所述卫星搜索列表，确定所述载波前向信号强度信息所指示的信号强度超过所述第二强度阈值的所有卫星，并从确定的所有卫星中确定负荷低于第二负荷阈值的卫星为所述接入卫星；
    遍历所述卫星搜索列表，确定最先遍历到的载波前向信号强度信息所指示的信号强度超过所述第二强度阈值的卫星为所述接入卫星。
  7. 根据权利要求2所述的方法，其中，在根据所述可用卫星信息配置卫星搜索列表之后，还包括：
    获取所述卫星通讯网络重新规划后的可用卫星信息；
    根据所述重新规划后的可用卫星信息重新配置卫星搜索列表。
  8. 根据权利要求7所述的方法，其中，获取所述卫星通讯网络重新规划后的可用卫星信息包括：
    向所述卫星通讯网络的网络侧发送请求信息，其中，所述请求信息用于请求获取重新规划后的可用卫星信息；
    接收所述卫星通讯网络的网络侧根据所述请求信息下发的重新规划后的可用卫星信息。
  9. 根据权利要求2至8中任一项所述的方法，其中，所述卫星搜索列表包括以下信息至少之一：
    卫星的经纬度信息、卫星的垂直高度信息、卫星的波束配置信息、卫星的载波信息。
  10. 根据权利要求1所述的方法，其中，所述接入卫星的载波实时负荷信息的获取方式包括：
    接收所述卫星通讯网络的网络侧的广播开销消息，其中，所述广播开销消息中携带有所述接入卫星的载波实时负荷信息。
  11. 根据权利要求1所述的方法，其中，根据所述载波实时负荷信息和/或所述前向信号强度信息确定所述接入卫星下的用于接入所述卫星通讯网络的接入载波，并利用确定的所述接入载波通过所述接入卫星接入所述卫星通讯网络包括：
    根据所述载波实时负荷信息和/或所述前向信号强度信息对所述接入卫星下的接入载波进行优先接入级别的排序并生成优先级别服务载波列表，其中，所述载波实时负荷信息所指示的载波负载量与优先级别成反比，所述前向信号强度信息所指示的信号质量与所述优先级别成正比；
    按照所述优先级别服务载波列表所指示的接入级别从高到低的顺序依次选择载波，并尝试利用选择的载波通过所述接入卫星接入所述卫星通讯网络，直到成功为止。
  12. 一种卫星通讯网络的接入方法，包括：
    计算卫星的载波实时负荷信息；
    将所述卫星的载波实时负荷信息发送给所述卫星通讯网络的终端，其中，所述卫星的载波实时负荷信息用于所述终端确定用于接入卫星 通讯网络的接入卫星和接入载波，并利用所述接入载波并通过所述接入卫星接入所述卫星通讯网络。
  13. 根据权利要求12所述的方法，其中，计算所述卫星的载波实时负荷信息包括：
    通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成所述载波实时负荷信息。
  14. 根据权利要求13所述的方法，其中，通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成所述载波实时负荷信息包括：
    根据载波带宽配置映射出载波接入最大用户数；
    周期统计当前载波当前接入用户数和前反向负荷带宽比；
    通过如下公式计算系统载波带宽比：所述系统载波带宽比＝Min(前向负荷带宽比，反向负荷带宽比)；
    将所述系统载波带宽比、当前载波当前接入用户数和所述载波接入最大用户数的比值，分别与载波负荷判定门限进行比较；
    当所述系统载波带宽比大于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷超过负荷阈值；
    当所述系统载波带宽比小于或等于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷未超过负荷阈值；
    当所述当前载波当前接入用户数和所述载波接入最大用户数的比值大于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷超过负荷阈值；
    当所述当前载波当前接入用户数和所述载波接入最大用户数的比值小于或等于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷未超过负荷阈值。
  15. 根据权利要求12所述的方法，其中，将所述卫星的载波实时负荷信息发送给终端包括：
    通过在广播开销消息中携带所述卫星的载波实时负荷信息的方式将所述载波实时负荷信息发送给所述终端。
  16. 根据权利要求12所述的方法，其中，所述方法还包括：
    规划所述终端的可用卫星信息；
    将所述可用卫星信息发送给所述终端。
  17. 根据权利要求16所述的方法，其中，在将所述可用卫星信息发送给所述终端之后，所述方法还包括：
    确定所述可用卫星信息需要重新规划；
    重新规划所述终端的可用卫星信息；
    将重新规划后的可用卫星信息发送给所述终端。
  18. 根据权利要求17所述的方法，其中，确定所述可用卫星信息需要重新规划包括：
    接收来自所述终端的请求信息，其中，所述请求信息用于请求重新规划可用卫星信息。
  19. 一种卫星通讯网络的接入装置，包括：
    确定模块，设置为确定用于接入所述卫星通讯网络的接入卫星；
    接入模块，设置为根据测量得到的前向信号强度信息和/或所述接入卫星的载波实时负荷信息确定所述接入卫星下的用于接入所述卫星通讯网络的接入载波，并利用确定的所述接入载波通过所述接入卫星接入所述卫星通讯网络。
  20. 根据权利要求19所述的装置，其中，所述确定模块包括：
    第一确定单元，设置为确定卫星通讯网络规划的可用卫星信息；
    配置单元，设置为根据所述可用卫星信息配置卫星搜索列表；
    第二确定单元，设置为遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星。
  21. 根据权利要求20所述的装置，其中，所述第二确定单元包括：
    第一确定子单元，设置为遍历所述卫星搜索列表，确定载波实时负荷信息所指示的负荷未超过第一负荷阈值的卫星为所述接入卫星。
  22. 根据权利要求20所述的装置，其中，所述第二确定单元包括：
    第二确定子单元，设置为遍历所述卫星搜索列表，确定载波前向信号强度信息所指示的信号强度超过第二强度阈值的卫星为所述接入卫星。
  23. 根据权利要求20所述的装置，其中，所述装置还包括：
    获取模块，设置为在根据所述可用卫星信息配置卫星搜索列表之后，获取所述卫星通讯网络重新规划后的可用卫星信息；
    第一处理模块，设置为根据所述重新规划后的可用卫星信息重新配置卫星搜索列表。
  24. 根据权利要求23所述的装置，其中，所述获取模块包括：
    第一发送单元，设置为向所述卫星通讯网络的网络侧发送请求信息，其中，所述请求信息用于请求获取重新规划后的可用卫星信息；
    第一接收单元，设置为接收所述卫星通讯网络的网络侧根据所述请求信息下发的重新规划后的可用卫星信息。
  25. 根据权利要求19所述的装置，其中，所述接入模块包括：
    生成单元，设置为根据所述载波实时负荷信息和/或所述前向信号强度信息对所述接入卫星下的接入载波进行优先接入级别的排序并生成优先级别服务载波列表，其中，所述载波实时负荷信息所指示的载波负载量与优先级别成反比，所述前向信号强度信息所指示的信号质量与所述优先级别成正比；
    接入单元，设置为按照所述优先级别服务载波列表所指示的接入 级别从高到低的顺序依次选择载波，并尝试利用选择的载波通过所述接入卫星接入所述卫星通讯网络，直到成功为止。
  26. 一种卫星通讯网络的接入装置，包括：
    计算模块，设置为计算卫星的载波实时负荷信息；
    第一发送模块，设置为将所述卫星的载波实时负荷信息发送给所述卫星讯网络的终端，其中，所述卫星的载波实时负荷信息用于所述终端确定用于接入卫星通讯网络的接入卫星和接入载波，并利用所述接入载波并通过所述接入卫星接入所述卫星通讯网络。
  27. 根据权利要求26所述的装置，其中，所述计算模块包括：
    计算单元，设置为通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成所述载波实时负荷信息。
  28. 根据权利要求27所述的装置，其中，所述计算单元包括：
    映射子单元，设置为根据载波带宽配置映射出载波接入最大用户数；
    统计子单元，设置为周期统计当前载波当前接入用户数和前反向负荷带宽比；
    计算子单元，设置为通过如下公式计算系统载波带宽比：所述系统载波带宽比＝Min(前向负荷带宽比，反向负荷带宽比)；
    比较子单元，设置为将所述系统载波带宽比、当前载波当前接入用户数和所述载波接入最大用户数的比值，分别与载波负荷判定门限进行比较；
    第五确定子单元，设置为当所述系统载波带宽比大于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷超过负荷阈值；
    第六确定子单元，设置为当所述系统载波带宽比小于或等于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷未超 过负荷阈值；
    第七确定子单元，设置为当所述当前载波当前接入用户数和所述载波接入最大用户数的比值大于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷超过负荷阈值；
    第八确定子单元，设置为当所述当前载波当前接入用户数和所述载波接入最大用户数的比值小于或等于所述载波负荷判定门限时，确定所述载波实时负荷信息所指示的负荷未超过负荷阈值。
  29. 根据权利要求26所述的装置，其中，所述第一发送模块包括：
    第二发送单元，设置为通过在广播开销消息中携带所述卫星的载波实时负荷信息的方式将所述载波实时负荷信息发送给所述终端。
  30. 根据权利要求26所述的装置，其中，所述装置还包括：
    规划模块，设置为规划所述终端的可用卫星信息；
    第二发送模块，设置为将所述可用卫星信息发送给所述终端。
  31. 根据权利要求30所述的装置，其中，所述装置还包括：
    第三确定模块，设置为在将所述可用卫星信息发送给所述终端之后，确定所述可用卫星信息需要重新规划；
    第二处理模块，设置为重新规划所述终端的可用卫星信息；
    第三发送模块，设置为将重新规划后的可用卫星信息发送给所述终端。
  32. 根据权利要求31所述的装置，其中，所述第三确定模块包括：
    第二接收单元，设置为接收来自所述终端的请求信息，其中，所述请求信息用于请求重新规划可用卫星信息。
  33. 一种卫星通讯网络的终端，包括：
    处理器，设置为确定用于接入所述卫星通讯网络的接入卫星；
    接入器，连接至所述处理器，设置为根据测量得到的前向信号强 度信息和/或所述接入卫星的载波实时负荷信息确定所述接入卫星下的用于接入所述卫星通讯网络的接入载波，并利用确定的所述接入载波通过所述接入卫星接入所述卫星通讯网络。
  34. 根据权利要求33所述的终端，其中，所述处理器确定设置为接入所述卫星通讯网络的所述接入卫星包括：
    确定卫星通讯网络规划的可用卫星信息；
    根据所述可用卫星信息配置卫星搜索列表；
    遍历所述卫星搜索列表，并从所述卫星搜索列表中确定用于接入所述卫星通讯网络的所述接入卫星。
  35. 一种卫星通讯网络的网络侧设备，包括：
    计算器，设置为计算卫星的载波实时负荷信息；
    通讯装置，连接至所述计算器，设置为将所述卫星的载波实时负荷信息发送给所述卫星通讯网络的终端，其中，所述卫星的载波实时负荷信息用于所述终端确定用于接入卫星通讯网络的接入卫星和接入载波，并利用所述接入载波并通过所述接入卫星接入所述卫星通讯网络。
  36. 根据权利要求35所述的网络侧设备，其中，所述计算器计算所述卫星的载波实时负荷信息包括：
    通过统计载波接入用户以及前反向载波带宽负荷比周期计算生成所述载波实时负荷信息。
  37. 一种卫星通讯网络的接入系统，包括权利要求33或34所述的终端，以及权利要求35或36所述的网络侧设备。
  38. 一种存储介质，所述存储介质包括存储的程序，其中，所述程序运行时执行权利要求1至18中任一项所述的方法。
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