Abstract:
Techniques for communicating UCI (Uplink Control Information) in unlicensed band systems are discussed. One example embodiment comprises a memory; and one or more processors configured to: generate an ePUCCH (enhanced Physical Uplink Control Channel) in a subframe via a first interlace of an unlicensed frequency band, wherein the first interlace comprises a plurality of non-contiguous RBs (Resource Blocks) equally spaced in a frequency domain; generate a UCI message for the unlicensed frequency band, wherein the UCI message comprises one or more of HARQ (Hybrid Automatic Repeat Request) ACK (Acknowledgement) feedback, CSI (Channel State Information), or a SR (Scheduling Request); and map the UCI message to the first interlace for the ePUCCH.
Abstract:
Described are mechanisms and methods for supporting Channel State Information (CSI) measurement and reporting, and for supporting Radio Resource Management (RRM) measurement and reporting, under License Assisted Access (LAA) with dynamic power sharing. An eNB may comprise one or more processors to generate a maximum number of Component Carriers (CCs) and a number of active CCs to a UE. The eNB may then be operable to process a reported quality rating from the UE and generate a scaled quality rating based upon the reported quality rating, the maximum number of CCs, and the number of active CCs. A UE may comprise one or more processors to process a reference signal transmission from an eNB, to generate an unfiltered reference signal transmission based upon the reference signal transmission, and to calculate a quality rating based upon the unfiltered reference signal transmission.
Abstract:
When performing a contention protocol, such as Listen-Before-Talk (LBT), an Long Term Evolution (LTE)-Licensed Assisted Access (LAA) node dynamically adapts the ED threshold used by the LTE-LAA node depending on whether other transmission nodes are detected at the frequency components that are to be used by the LTE-LAA node. In one implementation, the ED threshold value may initially be set to a conservative value, and when other transmissions nodes are not detected, the ED threshold value may be set to a more aggressive value. In another implementation, the ED threshold value may initially be set to a more aggressive value, and only when another transmission node is detected, the ED threshold value may be set to a more conservative value. In yet another possible implementation, the ED threshold value and the transmit power may be proportionally modified, for a particular UE, based on a parameter associated with the UE.
Abstract:
An eNodeB (eNB), user equipment (UE) and method of providing a quasi-orthogonal multiple access (QOMA) resources are generally described. The UE receives allocation of orthogonal multiple access (OMA) and non-OMA (NOMA) resources. The UE transmits data up to a maximum NOMA rate and NOMA Modulation and Coding Scheme (MCS) using the NOMA resources without receiving an explicit transmission grant from the eNB. The eNB may allocate multiple NOMA regions associated with different maximum rates, MCSs, number of UEs, UE types, applications and sizes. If the data exceeds the NOMA conditions or the UE is unable to transmit data using the allocated NOMA resources or does not receive an acknowledgement from the eNB regarding reception of the transmitted data, the UE may request an explicit grant of the OMA resources from the eNB and, upon receiving an allocation of the OMA resources, subsequently transmit the data using the allocated OMA resources.
Abstract:
Techniques for transmission of license assisted access (LAA) burst control information are discussed. One example apparatus that can employ such techniques in an evolved nodeB (eNB) includes a processor and transmitter circuitry. The process can generate a license assisted access (LAA) burst comprising a channel reservation signal, a LAA preamble, one or more downlink (DL) control channel messages, and one or more data payloads; can generate LAA burst control information associated with the LAA burst, wherein the LAA burst control information indicates a length of the LAA burst; and can generate a physical layer encoding of the LAA burst control information. The transmitter circuitry can transmit the physical layer encoding of the LAA burst control information via an unlicensed carrier.