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A session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof

A satellite communication system and session management technology, applied in the field of session management, can solve the problems of not distinguishing whether the terminals of both parties belong to the same communication network, waste of on-board resources, mismatch of satellite-ground integration, etc.

Inactive Publication Date: 2014-03-12
BEIJING SHENGAN TONGLI TECH DEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the terrestrial mobile communication system is based on the EPS (Evolved Packet System, Evolved Packet System) network architecture, and the difference between satellite and terrestrial communication systems causes the mismatch problem of satellite-terrestrial integration
In addition, due to the limitations of on-board resources and on-board processing technology, the current satellite communication mode can only be two-hop communication, that is, the on-board load processing method is transparent forwarding, and it does not distinguish whether the terminals of the two communicating parties belong to the same communication network. Does not distinguish whether the requested service is a voice service or a data service, resulting in a large delay and a waste of on-board resources

Method used

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  • A session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof
  • A session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof
  • A session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof

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Experimental program
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Embodiment 1

[0029] This embodiment is based on the satellite communication network architecture of EPS, see figure 2 . Network composition:

[0030] User terminal: It can be a fixed terminal or a mobile terminal.

[0031] Satellite wireless access network: composed of satellite and ground access network. Among them, the satellite on-board processor is mainly composed of a transparent forwarding module and an exchange processing module. The transparent forwarding module includes two parts: the user link processing unit and the feeder link processing unit, which respectively process the signal of the user link and the feeder link. The switching processing module includes: NodeB (Node B, Node B) functional entity, which mainly completes functions such as despreading and descrambling, demodulation and decoding, recoding modulation, scrambling and spreading; the corresponding unit of the satellite control node on the ground mainly completes the satellite Payload and satellite switching sig...

Embodiment 2

[0069] This embodiment is based on the satellite communication network architecture of EPS, see Image 6 . The composition of the network and the main functions of each functional entity are the same as those in the first embodiment, and will not be repeated here, and can be referred to the description in the first embodiment. The difference is: in the network architecture of this embodiment, the satellite switch processing load decision-making and control unit is only connected to the enhanced node of the gateway station.

[0070] The calling process of this embodiment is the same as that of Embodiment 1, refer to the description of Embodiment 1, and will not be repeated here.

[0071] For the called call process in this embodiment, refer to Figure 7 ,include:

[0072] 401. When the serving gateway receives the downlink data packet sent by the calling terminal, the serving gateway buffers the downlink data packet and indicates the mobility management entity serving the ca...

Embodiment 3

[0089] Embodiment 3: A session management device based on a new generation satellite mobile communication system, participating in Figure 8 ,include:

[0090] 501. A user information and service information receiving unit, configured to receive user information and service information;

[0091] 502. The first determining unit of the on-board payload processing mode. If the calling user and the called user belong to different communication network users, it is determined that the onboard load processing mode of the satellite is transparent forwarding. If the calling user and the called user belong to the satellite mobile communication network users, it is determined that the on-satellite load processing mode is on-satellite switching, and turn to the second determination unit of 503 on-satellite load processing mode.

[0092] 503. The second judging unit of the on-board payload processing mode. If the first determination unit of the satellite on-board load processing mode d...

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Abstract

The embodiment of the invention discloses a session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof. The session management method based on the new generation satellite communication system comprises the following steps: satellites exchange processing load decisions and a control unit obtains calling party information, called party information and business information; a processing mode for a satellite on-board load is determined; if a calling party and a called party belong to different communication networks, the satellite on-board processing mode is determined to be transparent forwarding; if the calling party and the called party belong to a same communication network, and the calling part requests a voice service, the satellite on-board processing mode is determined to be satellite on-board subcarrier exchange; and if the calling party and the called party belong to the same communication network, and the calling party requests data business, the satellite on-board processing mode is determined to be satellite on-board IP exchange, and satellite on-board load processing mode instruction information is emitted to a satellite. Through the utilization of the technical scheme above, fusion with a ground EPS network is convenient, and a time delay in communication is reduced. In addition, the utilization of satellite on-board resources is improved.

Description

technical field [0001] The invention relates to the field of satellite communication, in particular to a session management method, system and device based on a new generation satellite mobile communication system. Background technique [0002] Satellite communication refers to a system that uses satellites as relay stations, is based on ground mobile communication technology, and combines space communication satellite technology, computers and microelectronic integrated circuits to support user communication terminals to communicate with each other anywhere. In the satellite communication system, there are currently two communication modes between terminals, one-hop and two-hop, corresponding to the on-board load processing methods of on-board switching and transparent forwarding. Two-hop communication requires two satellite forwarding to complete the communication, and the service delay is relatively large; one-hop communication requires one-time satellite forwarding to co...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04L29/06
Inventor 关止苏志斌
Owner BEIJING SHENGAN TONGLI TECH DEV CO LTD
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