Patent ID: 9019930
Filing Date: 2015-04-28
Classification: H04B,H04L,H04W,Y02D

Abstract:
1. A method implemented in a wireless network device comprising: transmitting a wireless signal via a wireless transmitter to a field unit; detecting a wireless signal over a control channel from the field unit via a wireless receiver over a time interval that includes at least one time slot; wherein the detected signal comprises one of a plurality of signals from the group consisting of: a first signal indicating that the field unit is requesting an assignment of resources and that the transmitted signal was received by the field unit with a predetermined quality; a second signal indicating that the field unit is requesting an assignment of resources and that the transmitted signal was not received by the field unit with the predetermined quality; a third signal indicating that the field unit is not requesting an assignment of resources and that the transmitted signal was received by the field unit with the predetermined quality; and a fourth signal indicating that the field unit is not requesting an assignment of resources and that the transmitted signal was not received by the field unit with the predetermined quality.