CONTENTION-BASED TRANSMISSION WITH CONTENTION-FREE FEEDBACK FOR REDUCING LATENCY IN LTE ADVANCED NETWORKS AND ENHANCED PUCCH
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Abstract
Methods for contention-based transmission with contention-free feedback for reduced latency in LTE Advanced networks and an enhanced PUCCH are generally disclosed herein. User equipment (UE) may transmit a contention sequence on a physical uplink control channel (PUCCH) to an enhanced-Node B (eNB) and may concurrently transmit data requesting uplink resources on a physical uplink shared channel (PUSCH) to the eNB. The contention sequence is transmitted on the PUCCH in accordance with a format that is assigned by the eNB. The contention sequence is either randomly selected by the UE or assigned by the eNB. When the contention sequence and data are not successfully received by the eNB, the UE may fall back to a more conventional random access channel (RACH) procedure for uplink resource allocation.
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Citations
27 Claims
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2. A method performed by user equipment (UE) for random access transmission of user data, the method comprising:
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receiving an allocation of physical uplink shared channel (PUSCH) resources from an enhanced or evolved is B (eNB) for random access; and transmitting a contention sequence and user data on the allocated resources in accordance with a random-access technique. - View Dependent Claims (3, 4, 5, 6)
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9. A method performed by user equipment (UE) comprising:
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receiving an allocation of physical uplink shared channel (PUSCH) resources from an enhanced or evolved Node B (eNB); and transmitting a sequence and a payload within the allocated PUSCH resources for receipt by another UE. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. User equipment (UE) comprising a transceiver arranged to:
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receive an allocation of physical uplink shared channel (PUSCH) resources from an enhanced or evolved Node B (eNB); and transmit a sequence and a payload within the allocated PUSCH resources for receipt by another UE. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification