Uplink Reference Signal

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Wu Jianjun - One of the best experts on this subject based on the ideXlab platform.

  • Uplink Reference Signal Design for LTE Compatible GEO Multiple-beam Mobile Satellite Communication System
    2013
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Ma Ming, Wu Jianjun
    Abstract:

    For 3GPP long term evolution (LTE) Uplink, Reference Signal (RS) is an important kind of physical Signal which is primarily used for demodulation and channel sounding. However, in the multiple-beam satellite environments, the inter-beam and intra-beam interference will break the orthogonality of Uplink RS (UL-RS) from different user equipments (UEs), resulting in system performance degradation. In this paper, according to the characteristics of the satellite channels and inter/intra-beam interference, we analyze the compatibility problem, calculate the available capacity for the existing UL-RS in multiple-beam satellite environment, and propose a novel Uplink RS scheme which includes UL-RS sparsing, OCC scrambling and resource configuration for LTE compatible GEO multiple-beam mobile satellite communication system. Simulation results prove the effectiveness of the proposed UL-RS scheme.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000327260900115&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Engineering, Electrical & ElectronicTelecommunicationsEICPCI-S(ISTP)

  • Uplink Reference Signal design for LTE compatible GEO multiple-beam mobile satellite communication system
    15th International Conference on Advanced Communication Technology: Smart Services with Internet of Things! ICACT 2013, 2013
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Ma Ming, Wu Jianjun
    Abstract:

    For 3GPP long term evolution (LTE) Uplink, Reference Signal (RS) is an important kind of physical Signal which is primarily used for demodulation and channel sounding. However, in the multiple-beam satellite environments, the inter-beam and intra-beam interference will break the orthogonality of Uplink RS (UL-RS) from different user equipments (UEs), resulting in system performance degradation. In this paper, according to the characteristics of the satellite channels and inter/intra-beam interference, we analyze the compatibility problem, calculate the available capacity for the existing UL-RS in multiple-beam satellite environment, and propose a novel Uplink RS scheme which includes UL-RS sparsing, OCC scrambling and resource configuration for LTE compatible GEO multiple-beam mobile satellite communication system. Simulation results prove the effectiveness of the proposed UL-RS scheme. ? 2013 GIRI.EI617-62

  • Design and improving techniques for Uplink Reference Signal in LTE compatible mobile satellite communication system
    2012
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Wu Jianjun
    Abstract:

    Reference Signal (RS) is used for channel estimation and sounding in LTE Uplink of terrestrial system to accomplish data demodulation. However, the situation in multiple-beam mobile satellite communication system is different. The Uplink Reference Signal (UL-RS) designed in terrestrial LTE doesn't fit the satellite environment and may result to system performance degradation. In this paper, the UL-RS pattern used in GEO multiple-beam mobile satellite communication system is proposed, as well as two enhancement techniques, i.e., full bandwidth sounding, retransmit and combined receive. System performance index calculation and simulation results prove the effectiveness of the proposed design. ? (2012) Trans Tech Publications, Switzerland.EI

Si Ying - One of the best experts on this subject based on the ideXlab platform.

  • Uplink Reference Signal Design for LTE Compatible GEO Multiple-beam Mobile Satellite Communication System
    2013
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Ma Ming, Wu Jianjun
    Abstract:

    For 3GPP long term evolution (LTE) Uplink, Reference Signal (RS) is an important kind of physical Signal which is primarily used for demodulation and channel sounding. However, in the multiple-beam satellite environments, the inter-beam and intra-beam interference will break the orthogonality of Uplink RS (UL-RS) from different user equipments (UEs), resulting in system performance degradation. In this paper, according to the characteristics of the satellite channels and inter/intra-beam interference, we analyze the compatibility problem, calculate the available capacity for the existing UL-RS in multiple-beam satellite environment, and propose a novel Uplink RS scheme which includes UL-RS sparsing, OCC scrambling and resource configuration for LTE compatible GEO multiple-beam mobile satellite communication system. Simulation results prove the effectiveness of the proposed UL-RS scheme.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000327260900115&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Engineering, Electrical & ElectronicTelecommunicationsEICPCI-S(ISTP)

  • Uplink Reference Signal design for LTE compatible GEO multiple-beam mobile satellite communication system
    15th International Conference on Advanced Communication Technology: Smart Services with Internet of Things! ICACT 2013, 2013
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Ma Ming, Wu Jianjun
    Abstract:

    For 3GPP long term evolution (LTE) Uplink, Reference Signal (RS) is an important kind of physical Signal which is primarily used for demodulation and channel sounding. However, in the multiple-beam satellite environments, the inter-beam and intra-beam interference will break the orthogonality of Uplink RS (UL-RS) from different user equipments (UEs), resulting in system performance degradation. In this paper, according to the characteristics of the satellite channels and inter/intra-beam interference, we analyze the compatibility problem, calculate the available capacity for the existing UL-RS in multiple-beam satellite environment, and propose a novel Uplink RS scheme which includes UL-RS sparsing, OCC scrambling and resource configuration for LTE compatible GEO multiple-beam mobile satellite communication system. Simulation results prove the effectiveness of the proposed UL-RS scheme. ? 2013 GIRI.EI617-62

  • Design and improving techniques for Uplink Reference Signal in LTE compatible mobile satellite communication system
    2012
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Wu Jianjun
    Abstract:

    Reference Signal (RS) is used for channel estimation and sounding in LTE Uplink of terrestrial system to accomplish data demodulation. However, the situation in multiple-beam mobile satellite communication system is different. The Uplink Reference Signal (UL-RS) designed in terrestrial LTE doesn't fit the satellite environment and may result to system performance degradation. In this paper, the UL-RS pattern used in GEO multiple-beam mobile satellite communication system is proposed, as well as two enhancement techniques, i.e., full bandwidth sounding, retransmit and combined receive. System performance index calculation and simulation results prove the effectiveness of the proposed design. ? (2012) Trans Tech Publications, Switzerland.EI

Riku Jantti - One of the best experts on this subject based on the ideXlab platform.

  • Uplink Reference Signals for Power-Efficient Handover in Cellular Networks With Mobile Relays
    IEEE Access, 2021
    Co-Authors: Muhammad Tayyab, George Koudouridis, Xavier Gelabert, Riku Jantti
    Abstract:

    When a vehicle moves from one base station (BS) to another, a large number of on-board user equipments (UE) may simultaneously and individually perform a handover (HO) procedure, resulting in increased HO overheads. A mobile relay node (MRN), connected via a wireless backhaul to a donor base station (DBS), is deployed on the rooftop of a bus to improve the link quality and reduce the associated HO overhead via group mobility. However, at moderate to high speeds, the on-board UEs can still suffer from frequent HOs due to the MRN failing to HO to a new DBS using the legacy downlink measurement-based HO (DL-HO) method. As a consequence, the connection towards all associated mobile users will be lost which poses tight reliability requirements on the backhaul link to avoid becoming a single point of failure (SPoF). In order to improve the reliability during group handover, in this work, we propose an Uplink Reference Signal (UL RS) based HO procedure (coined as UL-HO) for the MRN which relies on the existing sounding Reference Signal in long term evolution (LTE) /new radio (NR). In the proposed scheme, and unlike the legacy DL-HO procedure in LTE/NR, the measurement report (MeasReport) transmission is not required between MRN and the DBS, therefore the HO delay can be reduced, decreasing the SPoF chances and thus, uninterrupted services can be provided to on-board UEs. We investigate the gain in terms of HO rate, HO failure rate, ping-pong rate and power consumption (both at the UE and the BS). Performance evaluations demonstrate that the proposed UL-HO scheme outperforms the legacy DL-HO scheme in current cellular networks.

  • GLOBECOM - Uplink Reference Signal Based Handover with Mobile Relay Node Assisted User Clustering
    GLOBECOM 2020 - 2020 IEEE Global Communications Conference, 2020
    Co-Authors: Muhammad Tayyab, George Koudouridis, Xavier Gelabert, Riku Jantti
    Abstract:

    In today’s cellular networks, an increasing number of connected devices on-board in fast-moving vehicles would require more efficient handover (HO) procedures. To this end, we investigate the utilization of mobile relay nodes (MRNs) in vehicles to facilitate efficient HO and HO-related power consumption reductions for all on-board user equipments (UEs). In particular, the potential gains in terms of HO rate, HO failure ratio (HOFR), ping-pong (PP) rate, and total power consumption are studied for different UE cluster sizes. To eliminate the measurement power-consuming procedure, Uplink (UL) Reference Signals (RS) transmitted by UEs are exploited. Four different case scenarios are simulated utilizing both the DL and UL RS based HO procedure, with and without deploying MRNs on the buses traveling along the cell edges of surrounding macro BSs. Simulation results indicate that the UL RS based HO procedure can improve HO performance significantly because it reduces the air-interface Signaling messages, namely the measurement report (MeasReport) transmission and reception. Also, in terms of power consumption, deploying MRNs is a more attractive solution with substantial power reduction for onboard UEs of higher cluster size.

Zheng Yadan - One of the best experts on this subject based on the ideXlab platform.

  • Uplink Reference Signal Design for LTE Compatible GEO Multiple-beam Mobile Satellite Communication System
    2013
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Ma Ming, Wu Jianjun
    Abstract:

    For 3GPP long term evolution (LTE) Uplink, Reference Signal (RS) is an important kind of physical Signal which is primarily used for demodulation and channel sounding. However, in the multiple-beam satellite environments, the inter-beam and intra-beam interference will break the orthogonality of Uplink RS (UL-RS) from different user equipments (UEs), resulting in system performance degradation. In this paper, according to the characteristics of the satellite channels and inter/intra-beam interference, we analyze the compatibility problem, calculate the available capacity for the existing UL-RS in multiple-beam satellite environment, and propose a novel Uplink RS scheme which includes UL-RS sparsing, OCC scrambling and resource configuration for LTE compatible GEO multiple-beam mobile satellite communication system. Simulation results prove the effectiveness of the proposed UL-RS scheme.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000327260900115&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Engineering, Electrical & ElectronicTelecommunicationsEICPCI-S(ISTP)

  • Uplink Reference Signal design for LTE compatible GEO multiple-beam mobile satellite communication system
    15th International Conference on Advanced Communication Technology: Smart Services with Internet of Things! ICACT 2013, 2013
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Ma Ming, Wu Jianjun
    Abstract:

    For 3GPP long term evolution (LTE) Uplink, Reference Signal (RS) is an important kind of physical Signal which is primarily used for demodulation and channel sounding. However, in the multiple-beam satellite environments, the inter-beam and intra-beam interference will break the orthogonality of Uplink RS (UL-RS) from different user equipments (UEs), resulting in system performance degradation. In this paper, according to the characteristics of the satellite channels and inter/intra-beam interference, we analyze the compatibility problem, calculate the available capacity for the existing UL-RS in multiple-beam satellite environment, and propose a novel Uplink RS scheme which includes UL-RS sparsing, OCC scrambling and resource configuration for LTE compatible GEO multiple-beam mobile satellite communication system. Simulation results prove the effectiveness of the proposed UL-RS scheme. ? 2013 GIRI.EI617-62

  • Design and improving techniques for Uplink Reference Signal in LTE compatible mobile satellite communication system
    2012
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Wu Jianjun
    Abstract:

    Reference Signal (RS) is used for channel estimation and sounding in LTE Uplink of terrestrial system to accomplish data demodulation. However, the situation in multiple-beam mobile satellite communication system is different. The Uplink Reference Signal (UL-RS) designed in terrestrial LTE doesn't fit the satellite environment and may result to system performance degradation. In this paper, the UL-RS pattern used in GEO multiple-beam mobile satellite communication system is proposed, as well as two enhancement techniques, i.e., full bandwidth sounding, retransmit and combined receive. System performance index calculation and simulation results prove the effectiveness of the proposed design. ? (2012) Trans Tech Publications, Switzerland.EI

Ren Shubo - One of the best experts on this subject based on the ideXlab platform.

  • Uplink Reference Signal Design for LTE Compatible GEO Multiple-beam Mobile Satellite Communication System
    2013
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Ma Ming, Wu Jianjun
    Abstract:

    For 3GPP long term evolution (LTE) Uplink, Reference Signal (RS) is an important kind of physical Signal which is primarily used for demodulation and channel sounding. However, in the multiple-beam satellite environments, the inter-beam and intra-beam interference will break the orthogonality of Uplink RS (UL-RS) from different user equipments (UEs), resulting in system performance degradation. In this paper, according to the characteristics of the satellite channels and inter/intra-beam interference, we analyze the compatibility problem, calculate the available capacity for the existing UL-RS in multiple-beam satellite environment, and propose a novel Uplink RS scheme which includes UL-RS sparsing, OCC scrambling and resource configuration for LTE compatible GEO multiple-beam mobile satellite communication system. Simulation results prove the effectiveness of the proposed UL-RS scheme.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000327260900115&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Engineering, Electrical & ElectronicTelecommunicationsEICPCI-S(ISTP)

  • Uplink Reference Signal design for LTE compatible GEO multiple-beam mobile satellite communication system
    15th International Conference on Advanced Communication Technology: Smart Services with Internet of Things! ICACT 2013, 2013
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Ma Ming, Wu Jianjun
    Abstract:

    For 3GPP long term evolution (LTE) Uplink, Reference Signal (RS) is an important kind of physical Signal which is primarily used for demodulation and channel sounding. However, in the multiple-beam satellite environments, the inter-beam and intra-beam interference will break the orthogonality of Uplink RS (UL-RS) from different user equipments (UEs), resulting in system performance degradation. In this paper, according to the characteristics of the satellite channels and inter/intra-beam interference, we analyze the compatibility problem, calculate the available capacity for the existing UL-RS in multiple-beam satellite environment, and propose a novel Uplink RS scheme which includes UL-RS sparsing, OCC scrambling and resource configuration for LTE compatible GEO multiple-beam mobile satellite communication system. Simulation results prove the effectiveness of the proposed UL-RS scheme. ? 2013 GIRI.EI617-62

  • Design and improving techniques for Uplink Reference Signal in LTE compatible mobile satellite communication system
    2012
    Co-Authors: Si Ying, Zheng Yadan, Ren Shubo, Wu Jianjun
    Abstract:

    Reference Signal (RS) is used for channel estimation and sounding in LTE Uplink of terrestrial system to accomplish data demodulation. However, the situation in multiple-beam mobile satellite communication system is different. The Uplink Reference Signal (UL-RS) designed in terrestrial LTE doesn't fit the satellite environment and may result to system performance degradation. In this paper, the UL-RS pattern used in GEO multiple-beam mobile satellite communication system is proposed, as well as two enhancement techniques, i.e., full bandwidth sounding, retransmit and combined receive. System performance index calculation and simulation results prove the effectiveness of the proposed design. ? (2012) Trans Tech Publications, Switzerland.EI

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