EXTENDED RANGE COMMUNICATIONS FOR ULTRA-WIDEBAND NETWORK NODES

• US 20190199395A1
• Filed: 02/28/2019
• Published: 06/27/2019
• Est. Priority Date: 12/23/2016
• Status: Active Grant

• Current Assignee: Sierra Nevada Co. LLC
• Original Assignee: Sierra Nevada Corporation
• Inventors: Rasmussen, Donald
• Granted Patent: US 10,637,531 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 1/1027 assessing signal quality or detecting noise/interference for the received signal
• CPC Class Codes: H04B 1/7073 Synchronisation aspects
• CPC Class Codes: H04B 1/7095 Sliding correlator type
• CPC Class Codes: H04B 1/7101 with estimation filters
• CPC Class Codes: H04B 1/711 the interference being multi-path interference
• CPC Class Codes: H04B 1/713 using frequency hopping
• CPC Class Codes: H04B 1/7163 using impulse radio
• CPC Class Codes: H04B 10/613 including phase diversity, e.g., having in-phase and quadrature branches, as in QPSK coherent receivers
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/004 by using forward error control H04L1/0618 takes precedence; coding, decoding or code conversion, for error detection or correction H03M13/00
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy

Abstract

A system is provided that can introduce data redundancy into wireless communications, and in particular ultra-wideband (UWB) wireless communications to increase the communication range when transmitting data that has low transmission rates. Multipath degradation, introduced by the extended communications range, can be mitigated by frequency hopping between the orthogonal frequency-division multiplexed symbols of the ultra-wideband waveform. Frequency hopping can place adjacent symbols in different frequency channels for filtering. Data redundancy can be expanded in the time domain and/or the frequency domain, resulting in extended range.

Claims

1-32. -32. (canceled)

33. A data system comprising:

at least one processor;

a memory storing machine-readable instructions which, when executed by the at least one processor, cause the at least one processor to perform one or more operations, the one or more operations comprising;

selecting a first burst rate for a channel of a wireless network, the channel of the wireless network having a maximum burst rate higher than the first burst rate, the channel configured to at least facilitate communication between a first device and a second device;

receiving, at the first device and the second device, performance information associated with the channel;

determining, based on the received performance information, whether the channel permits a second burst rate higher than the first burst rate; and

selecting, in response to the determining, the second burst rate for the channel.

34. The system of claim 33, wherein the one or more operations further comprise:

determining, at the first device and the second device, a failure rate of data transmitted between the first device and the second device on the channel.

35. The system of claim 34, wherein the one or more operations further comprise:

selecting, in response to determining that the failure rate is above a threshold failure rate, a third burst rate, the third burst rate less than the first burst rate.

36. The system of claim 33, wherein the first device is a patient care device.

37. The system of claim 33, wherein the selecting and the determining is performed by the first device.

38. A method comprising:

selecting a first burst rate for a channel of a wireless network, the channel of the wireless network having a maximum burst rate higher than the first burst rate, the channel configured to at least facilitate communication between a first device and a second device;

receiving, at the first device and the second device, performance information associated with the channel;

determining, based on the received performance information, whether the channel permits a second burst rate higher than the first burst rate; and

selecting, in response to the determining, the second burst rate for the channel.

39. The method of claim 38, further comprising:

determining, at the first device and the second device, a failure rate of data transmitted between the first device and the second device on the channel.

40. The method of claim 39, further comprising:

selecting, in response to determining that the failure rate is above a threshold failure rate, a third burst rate, the third burst rate less than the first burst rate.

41. The method of claim 38, wherein the first device is a patient care device.

42. The method of claim 38, wherein the selecting and the determining is performed by the first device.