Cyclical obstruction communication system
AssigneeViaSat, Inc.
InventorsDonald Wilcoxson, John O'Neill, Daniel Chester, Brian Sleight, Changping Li
Life of this patent
Estimating the term…
Abstract
Techniques for improving data rates at mobile terminals that are subject to periodic channel interruptions in a beyond-line-of-sight communication system are disclosed, including improved encoding and decoding systems that identify blockages and modify receiver operation during blockages to reduce data errors. In certain embodiments, encoding, symbol mapping, interleaving, and use of unique periodic identifiers function to enable a series of packets that may be received in a blockage impaired channel with reduced errors.
Claims29
(canceled)
A method comprising:
- establishing a communication session with a terminal for transmission of a packet via a protocol layer in a wireless communication system;
- identifying that a communication channel used for communication with the terminal is intermittently obstructed;
- determining a delay value for time-diversity for the communication with the terminal via the intermittently obstructed communication channel based at least in part on a packet characteristic of the packet and a blockage characteristic of the intermittently obstructed communication channel;
- and
- transmitting the packet to the terminal via the intermittently obstructed communication channel at a first time and a duplicate packet at a second time, the second time following the first time by the delay value.
An apparatus for wireless communication with a terminal via an intermittently obstructed channel in a wireless communication system, comprising:
- a transport processor that identifies a blockage characteristic associated with the intermittently obstructed channel for a communication session with the terminal;
- a scheduler that determines a delay value for time-diversity for the communication with the terminal via the intermittently obstructed channel based at least in part on a packet characteristic of a packet for transmission via the intermittently obstructed channel and the blockage characteristic;
- and
- a buffer that controls communication of packets of the communication session with the terminal via the intermittently obstructed channel according to the delay value, wherein the buffer transmits the packet to the terminal via the intermittently obstructed channel at a first time and a duplicate packet at a second time, the second time following the first time by the delay value.
A non-transitory computer-readable medium for wireless communication in a wireless communication system, the non-transitory computer-readable medium comprising instructions which, when executed by a processor, cause the processor to:
- establish a communication session with a terminal for transmission of a packet via a protocol layer or the wireless communication system;
- identify that a communication channel used for communication with the terminal is intermittently obstructed;
- determine a delay value for time-diversity for the communication with the terminal via the intermittently obstructed communication channel based at least in part on a packet characteristic of the packet and a blockage characteristic of the intermittently obstructed communication channel;
- and
- transmit the packet to the terminal via the intermittently obstructed communication channel at a first time and a duplicate packet at a second time, the second time following the first time by the delay value.
Dependencies are inferred from the claim text.