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Systems, methods, and devices are described for scheduling and mapping upstream communications in a satellite communications system. The disclosure includes various channelization and frequency hopping techniques. A gateway is described to perform novel allocation of time slots on upstream frequency

Systems, methods, and devices are described for scheduling and mapping upstream communications in a satellite communications system. The disclosure includes various channelization and frequency hopping techniques. A gateway is described to perform novel allocation of time slots on upstream frequency channels to allow frequency hopping. A subscriber terminal may perform frequency hopping according to the allocation, and the range may be limited to the transition range of a digitally controlled oscillator unit at the subscriber terminal. A gateway is described to allocate time slots on different upstream frequency channels in a prioritized manner. Subscriber terminals may receive the allocation, and then control the assignment of their upstream traffic to the time slots.

대표청구항 ▼

What is claimed is: 1. A device for generation of wireless upstream signals for satellite communications, the device comprising:an analog frequency synthesizer configured to tune an output signal to a frequency within an upstream satellite communications frequency range;a digitally controlled oscill

What is claimed is: 1. A device for generation of wireless upstream signals for satellite communications, the device comprising:an analog frequency synthesizer configured to tune an output signal to a frequency within an upstream satellite communications frequency range;a digitally controlled oscillator, communicatively coupled with the analog frequency synthesizer, and configured to vary the output signal among a set of carrier frequencies within a subset of the upstream satellite communications frequency range;a receiver configured to receive data mapping the wireless upstream signals to different ones of the set of carrier frequencies in a series of time slots, the mapping limited to carrier frequencies within the subset of the frequency range; anda processor, communicatively coupled with the digitally controlled oscillator and the receiver, and configured to control the digitally controlled oscillator to cause the output signal to hop between carrier frequencies according to the received data.