Distributed mixing implementation structure for space-borne switchboard and implementation method thereof

A switch and distributed technology, applied in the field of satellite mobile communication, can solve the problem of no technology being adopted, and achieve the effect of eliminating redundancy and avoiding waste.

Active Publication Date: 2010-12-15
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no base station with hundreds of beams in the ground mobile communication system, so there is no such problem, and no related technology is adopted

Method used

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  • Distributed mixing implementation structure for space-borne switchboard and implementation method thereof
  • Distributed mixing implementation structure for space-borne switchboard and implementation method thereof
  • Distributed mixing implementation structure for space-borne switchboard and implementation method thereof

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Embodiment Construction

[0050] The distributed hybrid implementation structure of a space-borne switch proposed by the present invention realizes the communication between hundreds of beams and thousands of channels of satellites by designing multiple decentralized switching modules that are not physically directly connected and have different switching modes. exchange function. Such as figure 1 As shown, the present invention includes a receiving circuit waveform exchanging module, several uplink processors, a baseband exchanging module, several downlink processors, a transmitting circuit waveform exchanging module and an on-board control unit.

[0051] The gateway station completes the user's connection establishment and connection release process. The gateway station processes user signaling and allocates processing resources on the star. The user initiates a call request to the gateway station, and the gateway station checks whether the uplink processor has a margin of two channels. If there is...

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Abstract

The invention discloses a a space-borne switchboard with distributed mixing implementation structure and an implementation method thereof. In the implementation method, signals of hundreds of wave beams sent from a receiving digital beam forming (DBF) network are sent to a corresponding uplink processors by a receiving-circuit waveform exchange module first so as to realize the selection and processing of a channel; and after base band exchange and spread spectrum modulation are performed, the convergence of the signals of the wave beams is realized by an emitting-circuit waveform exchange module. The implement method comprises the steps that: a, the receiving-circuit waveform exchange module sends M arbitrary signals of the wave beams to N1 uplink processors under control commands according to the mapping relationship; b, after carrying out de-spreading modulation on the signals, the uplink processors complete the combination of channel associated signaling by a base band exchange module and the exchange output to N2 downlink processors; and c, the emitting-circuit waveform exchange module outputs the outputs of the downlink processors to the receiving digital beam forming (DBF) network in the form of the wave beam. The distributed mixing implementation structure for the space-borne switchboard and the implementation method thereof of the invention can meet the requirements for scheduling capability produced in space-borne processing services when different wave beams of a user service subjected to space-borne processing are distributed non-uniformly and the distribution is changed dynamically with time so as to meet the requirements for user processing with minimum space-borne processing resources.

Description

technical field [0001] The invention relates to an on-board switching structure of a multi-beam GEO satellite, in particular to a GEO satellite with an on-board processing and switching function based on a WCDMA communication system, and belongs to the technical field of satellite mobile communication. Background technique [0002] Traditional satellite communications are mostly fixed station communications, transmitting services such as TV, radio, and small ground stations, and satellites undertake more relay functions. The rapid development of mobile communication services requires that future communication satellites not only have traditional relay functions, but also must have on-board switching functions to meet the needs of mobile communication services for small terminals. Many countries are developing satellite systems with on-board switching capabilities, but due to limitations in technical level, implementation complexity, and cost, there are still very few satelli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/18515H04B7/204
Inventor 陶孝锋赵毅毋丹芳顿玉成李阳侴胜男李雄飞
Owner XIAN INSTITUE OF SPACE RADIO TECH
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