Device to reader frequency multiplexing with manchester encoding

Abstract

A wireless transmit / receive unit (WTRU) transmits a message including resource allocation configuration information. The resource allocation configuration information includes: scaling factors, and a respective set of square wave clock cycles associated with each of the scaling factors. The WTRU transmits a reader-to-device (R2D) preamble indicating a first square wave clock cycle. The WTRU transmits control information indicating a first scaling factor of the scaling factors. The WTRU monitors for reception of device-to-reader (D2R) preambles. The WTRU determines, based on a received D2R preamble, a second square wave clock cycle from the set of square wave clock cycles associated with the indicated first scaling factor and first square wave clock cycle. The WTRU monitors for D2R transmissions based on the determined second square wave clock cycle. The WTRU transmits information indicating successful reception of the D2R transmissions based on the determined second square wave clock cycle.

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