FRAME STRUCTURE FOR UPLINK SCHEDULING
    135.
    发明申请

    公开(公告)号:US20190045541A1

    公开(公告)日:2019-02-07

    申请号:US15758933

    申请日:2016-05-31

    Abstract: An arrangement configured to be employed within a user equipment (UE). The arrangement includes control circuitry. The control circuitry is configured perform a clear channel assessment (CCA) during a data transmission with an evolved Node B (eNodeB), generate a clear channel indicator (CCI) based on the CCA, orthogonally multiplex an acknowledgement (ACK)/negative acknowledgement (NACK) with the CCI, where different sequences are allocated to the CCI and/or different resource block (RB) resources are allocated to the CCI, code and modulate a physical uplink control channel (PUCCH) using the multiplexed ACK/NACK, and provide the PUCCH having the CCI within the data transmission.

    Modified architecture for cloud radio access networks and approach for compression of front-haul data

    公开(公告)号:US10064242B2

    公开(公告)日:2018-08-28

    申请号:US15501407

    申请日:2015-06-30

    CPC classification number: H04W88/085 H03M7/40 H04W92/12

    Abstract: Systems and methods disclosed herein describe a centralized-processing cloud-based RAN (C-RAN or cloud-RAN) architecture that offers reduced front-haul data-rate requirements compared to common-public-radio-interface (CPRI) based C-RAN architectures. Base-band physical-layer processing can be divided between a BBU Pool and an enhanced RRH (eRRH). A frequency-domain compression approach that exploits LTE signal redundancy and user scheduling information can be used at the eRRH to significantly reduce front-haul data-rate requirements. Uniform scalar quantization and variable-rate Huffman coding in the frequency-domain can be applied in a compression approach based on the user scheduling information wherein a lossy compression is followed by a lossless compression.

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