Abstract: Among the embodiments of the present invention is test equipment (440) to test an integrated circuit (420). The integrated circuit (420) includes one or more processors and one or more communication devices (130). The test equipment (440) includes a responder integrated circuit (450) that has at least one processor, several communication devices (160), and one or more configuration connections (192). The responder integrated circuit responds to commands from the first integrated circuit (420) and a configuration established with the one or more configuration connections (192) to test operation of the one or more communication devices (130).

Abstract: An emergency routing protocol within a wireless communication network. A mobile device can establish a communication link to the system backbone even when, for whatever reason, it can no longer communicate directly with a base station. The emergency routing protocol enables a distressed mobile device to communicate with the system backbone through another mobile device serving as an intermediary. The intermediary mobile device forwards information destined to/received from the distressed mobile device to its intended destination.

Abstract: A bus arbiter circuit for a system including a bus and a plurality of devices which can request access to the bus at various times. The bus arbiter circuit includes circuitry for receiving requests for access to the bus from those of the plurality of devices desiring access to the bus during an arbitration cycle; circuitry for arbitrating access to the bus during the arbitration cycle in response to the received requests, an outcome of the arbitration cycle being based on a corresponding priority level associated with each of the plurality of devices; circuitry for granting access to one of those devices requesting access to the bus based on the outcome of the arbitration cycle; and circuitry for increasing the corresponding priority level associated with those of the plurality of devices which requested access to the bus but which were not granted access to the bus as a result of the arbitration cycle.