Abstract: Cross-service usage is dynamically enforced for different network-based services. A cross-service control system may accept requests to specify a usage quota for a client for an interface of a network-based service. A rule to enforce the usage quota may be distributed to request handling nodes for the service. Usage measurements may be collected from the request handling nodes for requests received from the client via the interface. An update to the usage quota may be determined from an evaluation of the usage measurements. The rule at the request handling nodes may be updated to enforce the updated usage quota.

Abstract: Systems and methods for operating a communication device so as to mitigate intermodulation interference to a signal. The methods comprise: continuously monitoring several communication channels by the communication device; using a noise floor level estimate of the communication device to detect when the communication device is under an influence of hig interference; determining an optimal level of attenuation to be applied by a variable attenuator of the communication device's receiver so as to mitigate the influence of intermodulation interference to the signal; and selectively adjusting an amount of attenuation being applied by the variable attenuator to achieve the optimal level of attenuation for mitigating intermodulation interference.

Abstract: Systems and methods for operating a communication device so as to mitigate intermodulation interference to a signal. The methods comprise: continuously monitoring several communication channels by the communication device; using a noise floor level estimate of the communication device to detect when the communication device is under an influence of hig interference; determining an optimal level of attenuation to be applied by a variable attenuator of the communication device's receiver so as to mitigate the influence of intermodulation interference to the signal; and selectively adjusting an amount of attenuation being applied by the variable attenuator to achieve the optimal level of attenuation for mitigating intermodulation interference.

Abstract: A mobile communication device (MCD) in a network uses a land mobile radio (LMR) transceiver to facilitate voice communications through an LMR network to a dispatch center. A broadband cellular network (BCN) wireless modem in communication with the MCD implements a BCN wireless communication protocol for broadband data communications between the MCD and a remote dispatch center. When a BCN access interruption occurs, the MCD will automatically communicate to the remote dispatch center a notification of the BCN access interruption, by using the LMR network, and data otherwise communicated through the BCN is automatically communicated through the LMR network.

Abstract: A mobile communication device (MCD) in a network uses a land mobile radio (LMR) transceiver to facilitate voice communications through an LMR network to a dispatch center. A broadband cellular network (BCN) wireless modem in communication with the MCD implements a BCN wireless communication protocol for broadband data communications between the MCD and a remote dispatch center. When a BCN access interruption occurs, the MCD will automatically communicate to the remote dispatch center a notification of the BCN access interruption, by using the LMR network, and data otherwise communicated through the BCN is automatically communicated through the LMR network.

Abstract: A dual band full duplex mobile radio is provided that includes a transmit portion including a dual band filter and a receive portion including a dual band filter. The dual band full duplex mobile radio further includes a circulator connecting the transmit portion and the receive portion and configured to provide transmit and receive switching.