Rockwell Collins, Inc.

Jeffrey Grundmeyer

John V Thommana

Lizy Paul

A system is disclosed. The system includes at least one signal relay device communicatively located between a base station configured to send and receive signals on a first channel and user equipment configured to send and receive signals on a second channel, wherein the at least one signal relay device is configured to: operate in contested environments; receive a base station signal on the first channel while operating in the contested environment; transform the base station signal on the first channel to the second channel; send the base station signal to the user equipment on the second channel while operating in the contested environment; receive a user equipment signal on the second channel; transform the user equipment signal on the second channel to the first channel; and send the user equipment signal to the base station on the first channel.

Signal relay device for operation in contested environment

The US DoD is moving to incorporate 5G, particularly for sidelinks networks. 5G sidelink network are desired to operate at company, platoon, and squad levels independent of connection to 5G base stations (gNB). The 5G sidelink standards, as defined by 3GPP, cannot operate under active jamming at expected threat levels. The sidelink standards are defined for commercial use and cannot withstand active jamming. Various prior art uses beamforming, directionally beamformed MIMO, and even distributed MIMO as potential options to address active jamming. The SWAP-C and standards of the 5G UEs are not conducive to these anti-jamming techniques. A solution is described that uses the 5G sidelink physical layer with modifications at the control layer to avoid denial of the S-SSB. Intra-, inter-squad, and squad-to-command post communications may use the solution to avoid denial of the 5G sidelink.

Tactical multi-rat sidelink

A platform is provided which removes the need for the pilot to select between high angle and low angle antenna elements. By the automatic selection, the platform may improve BLOS connectivity during various phases of flight, such as during banking operations. The platform includes a SATCOM antenna including first and second elements. The platform also includes one or more SDRs which provide receive and transmit functions for the BLOS waveform. The platform may also include either a UHF diversity combiner or an LNA diplexer assembly. Thus, two methods are described for reducing out-of-service events for CDMA and legacy Narrowband UHF SATCOM.

Antenna optimization for SATCOM waveforms

A system may include a software-defined radio (SDR) configured to communicate over multiple channels by using a beyond line of sight (BLOS) waveform. The SDR may be configured to transmit encrypted communications over some or all of the multiple channels to a satellite and on to at least one radio access node (RAN). The SDR may be configured to receive encrypted communications over some or all of the multiple channels from the at least one RAN via the satellite. At least one of the multiple channels may use a spreading factor greater than 256. The SDR may be configured to simultaneously transmit and receive encrypted communications over the multiple channels.

Multiple channel beyond line of sight waveform software-defined radio

A system may include a node. The node may include a first software-defined radio (SDR) configured to support transmit and receive communications using a beyond line of sight (BLOS) waveform. The node may include a second SDR to support transmit and receive communications using a line of sight waveform while simultaneously being configured to support receive communications using a narrowband (NB) ultra high frequency (UHF) satellite communication (SATCOM) waveform. The node may include a SATCOM antenna configured to transmit and receive the communications using the BLOS waveform and to receive the communications using the NB UHF SATCOM waveform. The node may include a low noise amplifier (LNA) and triplexer assembly. The first and second SDRs may share the SATCOM antenna and the LNA and triplexer assembly.

Growing community of inventors

Walker, IA, United States of America

Jeffrey Grundmeyer