CN113676996A - Satellite terminal registration method, system and terminal based on DVB and 5G fusion networking - Google Patents
Satellite terminal registration method, system and terminal based on DVB and 5G fusion networking Download PDFInfo
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- CN113676996A CN113676996A CN202110916181.2A CN202110916181A CN113676996A CN 113676996 A CN113676996 A CN 113676996A CN 202110916181 A CN202110916181 A CN 202110916181A CN 113676996 A CN113676996 A CN 113676996A
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- 238000000034 method Methods 0.000 title claims abstract description 88
- 230000006855 networking Effects 0.000 title claims abstract description 16
- 230000004927 fusion Effects 0.000 title claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 47
- 230000004044 response Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
- H04B7/18589—Arrangements for controlling an end to end session, i.e. for initialising, synchronising or terminating an end to end link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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Abstract
The invention provides a method, a system and a terminal for registering a satellite terminal based on DVB and 5G fusion networking, wherein the method for registering the satellite terminal comprises the following steps: the random access process of the satellite terminal in the DVB access network and the registration process of the satellite terminal to the 5G core network are performed in parallel, so that the registration delay of the satellite terminal is reduced. The invention does not need to wait until the random access process of the satellite terminal is finished and then starts the registration process, but simultaneously performs the registration process when the random access process is started, so that the two processes are performed in parallel, thereby reducing the registration time delay of the satellite terminal.
Description
Technical Field
The invention relates to the technical field of information, in particular to a satellite terminal registration method, a satellite terminal registration system and a satellite terminal registration terminal based on DVB and 5G fusion networking.
Background
The random access procedure in DVB system is shown in figure 1. The satellite terminal starts a Logon PDU in an IDLE state, enters a CONNECT state after sending a Ctrl PDU (realizing fine synchronization), and can transmit service data after the satellite terminal achieves the fine synchronization.
The random access procedure and the registration procedure in the 5G NR system are shown in fig. 2. The random access procedure is used for the satellite terminal and the base station to establish a wireless link before performing the Registration procedure, i.e. the satellite terminal needs to establish an RRC connection with the base station before sending the Registration Request. The satellite terminal initiates an RRC Setup Request message in an RRC-IDLE state, the satellite terminal enters an RRC-CONNECT state after receiving the RRC Setup message of the base station, and then the satellite terminal sends an RRC Setup Complete (including a registered Registration Request message) message for confirming that the RRC connection is successfully established.
As shown in fig. 1, the satellite terminal can transmit service data after achieving fine synchronization, and there is no core network similar to a processing high-level protocol in the DVB system, and there is no process of registering to the core network.
As shown in fig. 2, after the RRC connection of the satellite terminal is completed, a registration procedure is initiated, and if the method is applied to a satellite communication system, the time delay from the space base station to the ground core network is very long, and the time delay for the registration of the satellite terminal is very long.
At present, no fusion networking access technology of DVB and 5G is proposed, and no solution is available at present.
Disclosure of Invention
The invention aims to provide a satellite terminal registration method, a system and a terminal based on DVB and 5G fusion networking, so as to solve the existing technical problems.
The invention provides a satellite terminal registration method based on DVB and 5G fusion networking, which comprises the following steps:
the random access process of the satellite terminal in the DVB access network and the registration process of the satellite terminal to the 5G core network are performed in parallel, so that the registration delay of the satellite terminal is reduced.
Further, the method for enabling the satellite terminal to perform the random access process in the DVB access network and the registration process from the satellite terminal to the 5G core network in parallel comprises the following steps:
and advancing the Registration Request message in the Registration process from the satellite terminal to the 5G core network to the random access process of the satellite terminal in the DVB access network.
Further, the method for advancing the Registration Request message in the Registration process from the satellite terminal to the 5G core network to the random access process of the satellite terminal in the DVB access network comprises the following steps:
the Registration Request message is carried in the Logon PDU message sent to the base station by the satellite terminal.
After receiving the Logon PDU message from the satellite terminal, the base station sends an Initial Ue message to the 5G core network, and the base station directly replies a satellite terminal login request response without waiting for the response of the 5G core network.
The invention also provides a satellite terminal based on DVB and 5G fusion networking, which is characterized in that the satellite terminal adopts the satellite terminal registration method to perform registration.
The invention also provides a network based on DVB and 5G fusion, wherein the DVB and 5G fusion network comprises the satellite terminal, a base station and a 5G core network.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention does not need to wait until the random access process of the satellite terminal is finished and then starts the registration process, but simultaneously performs the registration process when the random access process is started, so that the two processes are performed in parallel, thereby reducing the registration time delay of the satellite terminal.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flow chart of random access in a DVB system.
Fig. 2 is a diagram of a random access procedure and a registration procedure in the 5G NR system.
Fig. 3 is a flowchart of a satellite terminal registration method based on DVB and 5G converged networking according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The fine synchronization of the satellite terminals in the DVB system is achieved similar to the RRC connection setup completion in the 5G NR system, at which point the satellite terminals enter the connected state. If the DVB system and the 5G NR system are simply fused, the satellite terminal initiates a Registration Request procedure after the fine synchronization is achieved, i.e. the 3 rd message (Ctrl PDU (fine synchronization is achieved)) as shown in fig. 3. Considering that a time delay from a space base station to a ground core network in a satellite communication system is very large, the embodiment provides a satellite terminal registration method based on DVB and 5G fusion networking, including:
the random access process of the satellite terminal in the DVB access network and the registration process of the satellite terminal to the 5G core network are performed in parallel, so that the registration delay of the satellite terminal is reduced. In other words, the registration process is performed at the same time when the random access process starts instead of waiting until the random access process of the satellite terminal is completed, so that the two processes are performed in parallel, thereby reducing the registration delay of the satellite terminal.
In this embodiment, the method for implementing parallel execution of the random access process of the satellite terminal in the DVB access network and the registration process of the satellite terminal to the 5G core network includes:
and advancing the Registration Request message in the Registration process from the satellite terminal to the 5G core network to the random access process of the satellite terminal in the DVB access network. Specifically, the method comprises the following steps:
a Registration Request message is carried in a Logon PDU message sent to a base station by a satellite terminal, as shown in fig. 3;
after receiving the Logon PDU message from the satellite terminal, the base station sends an Initial Ue message to the 5G core network, and the base station directly replies a satellite terminal login request response without waiting for the response of the 5G core network. That is, the message 2(Ctrl PDU (not achieving fine synchronization)), the message 3(Ctrl PDU (achieving fine synchronization)), and the message 5(Downlink Nas Transport (including Authentication Request)), and the message 6(Uplink Nas Transport (including Authentication Response)) in fig. 3 do not have a sequential order, but are parallel.
Example 2
In this embodiment, a satellite terminal based on DVB and 5G fusion networking is implemented, where the satellite terminal performs registration by using the satellite terminal registration method described in embodiment 1. Even if the random access process of the satellite terminal in the DVB access network and the registration process of the satellite terminal to the 5G core network are performed in parallel, the registration delay of the satellite terminal is reduced.
As in embodiment 1, the method for implementing parallel execution of the random access procedure of the satellite terminal in the DVB access network and the registration procedure of the satellite terminal to the 5G core network includes:
and advancing the Registration Request message in the Registration process from the satellite terminal to the 5G core network to the random access process of the satellite terminal in the DVB access network. Specifically, the method comprises the following steps:
a Registration Request message is carried in a Logon PDU message sent to a base station by a satellite terminal, as shown in fig. 3;
after receiving the Logon PDU message from the satellite terminal, the base station sends an Initial Ue message to the 5G core network, and the base station directly replies a satellite terminal login request response without waiting for the response of the 5G core network. That is, the message 2(Ctrl PDU (not achieving fine synchronization)), the message 3(Ctrl PDU (achieving fine synchronization)), and the message 5(Downlink Nas Transport (including Authentication Request)), and the message 6(Uplink Nas Transport (including Authentication Response)) in fig. 3 do not have a sequential order, but are parallel.
Example 3
The embodiment realizes the network integration based on DVB and 5G, and the DVB and 5G network integration comprises the satellite terminal, the base station and the 5G core network in the embodiment 2. Even if the satellite terminal is registered using the satellite terminal registration method as described in embodiment 1. Specifically, the random access process of the satellite terminal in the DVB access network and the registration process of the satellite terminal to the 5G core network are performed in parallel, so that the registration delay of the satellite terminal is reduced.
As in embodiment 1, the method for implementing parallel execution of the random access procedure of the satellite terminal in the DVB access network and the registration procedure of the satellite terminal to the 5G core network includes:
and advancing the Registration Request message in the Registration process from the satellite terminal to the 5G core network to the random access process of the satellite terminal in the DVB access network. Specifically, the method comprises the following steps:
a Registration Request message is carried in a Logon PDU message sent to a base station by a satellite terminal, as shown in fig. 3;
after receiving the Logon PDU message from the satellite terminal, the base station sends an Initial Ue message to the 5G core network, and the base station directly replies a satellite terminal login request response without waiting for the response of the 5G core network. That is, the message 2(Ctrl PDU (not achieving fine synchronization)), the message 3(Ctrl PDU (achieving fine synchronization)), and the message 5(Downlink Nas Transport (including Authentication Request)), and the message 6(Uplink Nas Transport (including Authentication Response)) in fig. 3 do not have a sequential order, but are parallel.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A satellite terminal registration method based on DVB and 5G fusion networking is characterized by comprising the following steps:
the random access process of the satellite terminal in the DVB access network and the registration process of the satellite terminal to the 5G core network are performed in parallel, so that the registration delay of the satellite terminal is reduced.
2. The method for registering a satellite terminal based on DVB and 5G fusion networking according to claim 1, wherein the method for enabling the satellite terminal to perform the random access process in the DVB access network and the registration process from the satellite terminal to the 5G core network in parallel comprises the following steps:
and advancing the Registration Request message in the Registration process from the satellite terminal to the 5G core network to the random access process of the satellite terminal in the DVB access network.
3. The DVB-and-5G-fusion-networking-based satellite terminal Registration method according to claim 2, wherein the method for advancing the Registration Request message in the Registration process from the satellite terminal to the 5G core network to the random access process of the satellite terminal in the DVB access network comprises the following steps:
the Registration Request message is carried in the Logon PDU message sent to the base station by the satellite terminal.
4. The DVB-5G converged networking based satellite terminal registration method of claim 3, wherein the base station sends an Initial Ue message to the 5G core network after receiving the Logon PDU message from the satellite terminal, and the base station directly replies a satellite terminal registration request response without waiting for the response of the 5G core network.
5. A satellite terminal based on DVB and 5G fusion networking, characterized in that the satellite terminal adopts the satellite terminal registration method according to any one of claims 1 to 4 for registration.
6. DVB and 5G based converged networking, characterized in that it comprises a satellite terminal according to claim 5, as well as a base station and a 5G core network.
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Cited By (1)
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| CN114928402A (en) * | 2022-05-19 | 2022-08-19 | 成都中科微信息技术研究院有限公司 | Improved satellite terminal position updating method based on DVB (digital video broadcasting) protocol, satellite terminal and satellite communication system |
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