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US09179409B2 Multiple access scheme for narrowband channels 有权
窄带通道多路访问方案

Multiple access scheme for narrowband channels
Abstract:
Methods, systems, and devices for managing wireless communications in a machine-to-machine (M2M) wireless Wide Area Network (WAN). An operating frequency band of the M2M wireless WAN is divided into at least a first frequency channel and a second frequency channel. The first and second frequency channels being used for communications on a reverse link. First channel status information and second channel status information are broadcasted to one or more M2M devices. The first channel status information indicating a status of the first frequency channel. The second channel status information indicating a status of the second frequency channel.
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