PATENT CLAIM ANALYSIS

Application Number: 16078503
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["455", "012100"]

Abstract:
A method of scheduling wake up times for terminals in a satellite communication system using satellite ephemeris data in order to extend battery life of terminals is described. The terminal periodically evaluates the stored ephemeris data to determine whether it is valid, recently valid, or invalid. When the ephemeris data is valid the terminal can schedule wake up times to either transmit or receive updated ephemeris data. For recently valid ephemeris data the terminal calculates BB possible satellite pass windows and schedules wake up time. For invalid data the terminal wakes and listens periodically with a period that is less than the expected satellite pass duration. It may repeat this process several times before sleeping for an amount of time less than the expected satellite pass duration and repeating. Additional gateway beacons may be used to provide ephemeris data, and satellites may also provide information on beacon locations.

Claim (Index 16):
A satellite communication system comprising a plurality of terminal apparatuses, and a plurality of satellites, wherein one or more of the satellites are configured to transmit ephemeris data for the plurality of satellites to the plurality of terminal apparatuses, wherein each of the terminal apparatuses comprises:\n a receiver apparatus; a transmitting apparatus; a position and timing module; a processor, and a memory, wherein the memory comprises instructions to perform a method of operation of the terminal apparatus in the satellite communication system comprising: a) receiving and storing, by the terminal, ephemeris data including validity data received using the receiver apparatus; b) scheduling at least one wake up time based on the stored ephemeris data for transmitting data or for receiving updated ephemeris data, wherein the terminal enters a sleep state between scheduled wakeup times and is woken up at a scheduled wake up time; c) waking up the terminal at a scheduled wake up time and performing the following actions before going back to sleep; d) obtaining an estimate of the terminal's position and the global time from the position and timing module; e) determining, based upon the terminal's position and global time estimate, if the stored ephemeris data is valid, recently valid or invalid; f) if the stored ephemeris data is valid then either transmitting data to a satellite using the transmitting apparatus or attempting to receive updated ephemeris data from a satellite using the receiver apparatus; g) if the stored ephemeris data is recently valid, then estimating a set of possible satellite pass windows based on the stored ephemeris data and scheduling a set of warm wake up times during which the terminal is woken up to attempt to receive updated ephemeris data using the receiver apparatus; h) if the ephemeris data is invalid then the terminal is scheduled to go to sleep and periodically wake up and attempt to receive updated ephemeris data using the receiver apparatus with a period between wake up being less than an expected satellite pass duration, and if the attempt to receive updated ephemeris data was unsuccessful then the terminal goes back to sleep, and the terminal repeats this action h) until it successfully receives ephemeris data; i) wherein upon receiving updated ephemeris data in action f), g) or h), the ephemeris data is stored and action b) is repeated.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 96.0
- Lexical Diversity: 1.81609
- Patent Class: 455.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11561749', '14862647', '09903320', '15280391', '10096492']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6889967135613368
- 35 USC 102 Novelty (BERT): 0.4815834180517517
- Combined Prediction Score: 0.6682553840103784
- Mean Citation Score: 192.478656
- Max Citation Score: 233.16185
- Similarity Product: 193.6628204876125

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test