A communication system is described. The communication system includes 5g base stations (gNodeB) which are communicatively coupled to a user equipment (UE) by a multiple radio access technology (multi-RAT) dual connectivity. A first of the gNodeBs is a master gNodeB which relays control signaling from a 5G network core to a secondary gNodeB. To avoid spectral interference of the control signals between the master gNodeB and the secondary gNodeB, the control signals are transmitted according to a tactical waveform protocol selected from the Department of Defense (DoD) Communication Waveform Inventory (2020), such as a common data link (CDL) protocol.

The system and method of utilizing frequency waterfilling and implicit coordination to mitigate signal jamming in Link 16 systems. The system and method of utilizing frequency waterfilling for Link 16 includes updates to both software and firmware. The frequency waterfilling approach for Link 16 modifies the process by which data bits are allocated to hops based on an assessment of hops affected by jamming, thus avoiding portions of the spectrum occupied by a jammer.

Methods, systems, and devices for wireless communication are described. The methods, systems, and devices may provide for a time varying allocation of resources which includes a shared pattern of resources. The shared pattern of resources may be generated, determined, or otherwise identified by a base station and transmitted to the user equipment (UE). The shared pattern of resources may include one or more resource blocks (RBs) allocated for uplink transmission such as uplink control information to be transmitted using a physical uplink control channel (PUCCH) or uplink data transmissions using a physical uplink shared channel (PUSCH).

A method, computer-readable storage device and apparatus for encrypting a broadcast message of a base station are disclosed. For example, the method selects an encryption key for the broadcast message and encrypts the broadcast message using the encryption key to create an encrypted broadcast message. The method then transmits an identifier of the encryption key and transmits the encrypted broadcast message over a broadcast channel. A method for decrypting a broadcast message that is encrypted is also disclosed.

Methods, systems, and devices for wireless communication are described. The methods, systems, and devices may employ mechanisms for encrypting downlink control channels for jamming resilience. The methods, systems, and devices may include or may be configured to generate and receive a security configuration, obtain a downlink control channel encryption key, transmit a control channel message, and decrypt the transmitted messaged based on the encryption key.

Methods, systems, and devices for channelizing and beamforming a wideband waveform are described. Generally, the described techniques provide for transmitting and receiving wideband waveforms that are beamformed on a per-channel basis during generation of the wideband waveforms. A transmitter may separate a first wideband signal into segments, with each segment bandwidth corresponding to a channel of the system bandwidth, and may map the segments to channels. The segments may be replicated to generate multiple copies of each segment. The transmitter may beamform and combine the copies of the segments to generate multiple wideband waveforms, and transmit each wideband waveform using a different antenna. A receiver may receive multiple wideband waveforms using multiple antennas and may separate each wideband waveform into segments, then beamform and de-map the segments. The techniques may be used to transmit and receive beamformed wideband waveforms over tactical data links.

A method comprising determining that interference may occur in a wireless network an apparatus is connected to, obtaining a first link that is of a first type, obtaining a second link that is of a second type, determining data to be transmitted from the apparatus to another apparatus connected to the wireless network, determining that a transmission occurs in the first link and transmitting the data in the second link, wherein the transmission in the first link has a longer duration than transmitting the data in the second link and the transmission in the first link and transmitting the data in the second link overlap in time.

A radio frequency (RF) communications system may include an RF transmitter having multicarrier transmitter circuitry that transmits frequency bands over a frequency range. A controller may selectively transmit real information over at least one of the frequency bands and selectively transmits fake information within the frequency range. The controller's operation is based on embedded machine learning model and real-time effectiveness feedback from built-in spectral analyzer. An RF receiver receives the real information from the RF transmitter.

Provided is a jamming defense system. In the jamming defense system for wireless local area network communication between an access point (AP) and a user node, the AP that transmits and receives a message to and from the user node generates an AP secret key value by measuring a signal reception strength for the message, and the user node that transmits and receives a message to and from the AP generates a user node secret key value by measuring a signal reception strength for the message.

Methods, systems, and devices for channelizing a wideband waveform for transmission on a spectral band comprising unavailable channel segments are described. Generally, the described techniques provide for transmitting and receiving wideband waveforms when channels of a system bandwidth are unavailable for transmission. A transmitter may separate a first wideband signal into segments, with each segment a bandwidth corresponding to a channel of the system bandwidth, and may map the segments to the available channels. The transmitter may combine the mapped segments into a second wideband waveform and transmit the second wideband waveform using the available channels. A receiver may receive a first wideband signal waveform and may separate the first wideband signal waveform into segments, de-map the segments and combine the de-mapped segments into a second wideband waveform for demodulation. The techniques may be used to transmit and receive wideband waveforms over tactical data links.