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公开(公告)号：US12284125B2
公开(公告)日：2025-04-22
申请号：US18330813
申请日：2023-06-07
Applicant: Futurewei Technologies, Inc.
Inventor： Qian Cheng , Weimin Xiao , Jialing Liu , Murali Narasimha
Abstract: A network controller may configure one or more channel state information-reference signal (CSI-RS) configurations for transmitting RSs to user equipments (UEs) for tracking. A CSI-RS configuration may specify a set of CSI-RS resources for transmitting RSs in two consecutive slots. The set of CSI-RS resources may include a plurality of one-port CSI-RS resources configured according to the CSI-RS configuration. The CSI-RS configuration may specify a quasi co-location (QCL) configuration including a set of QCL parameters, where a demodulation reference signal (DMRS) has a QCL relationship with the RS with respect to the set of QCL parameters. The network controller may signal the one or more CSI-RS configurations to UEs.
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公开(公告)号：US10980064B2
公开(公告)日：2021-04-13
申请号：US16008783
申请日：2018-06-14
Applicant: Futurewei Technologies, Inc.
Inventor： Murali Narasimha , Weimin Xiao , Qian Cheng , Jialing Liu , Vipul Desai
Abstract: An efficient random access procedure is provided for reduced control overhead of connections in random access systems. A base station transmits one or more synchronization signal (SS) blocks. A UE detects and determines a preferred SS block. The UE transmits multiple random access signals (e.g., PRACH signals) in a RACH occasion. Each PRACH signal is transmitted on a different beam and includes a RACH preamble. The base station receives one or more of the PRACH signals. The RACH occasion and optionally the RACH preamble identify the preferred SS block. The base station determines a preferred PRACH signal. The base station sends a RAR to the UE using the transmit beam of the preferred SS block. The RAR indicates the preferred PRACH signal and an uplink resource allocation. The UE receives the RAR and transmits a message using the transmit beam of the preferred PRACH signal and the uplink resource allocation.
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3.发明申请公开(公告)号：US20190052443A1
公开(公告)日：2019-02-14
申请号：US16101278
申请日：2018-08-10
Applicant: Futurewei Technologies, Inc.
Inventor： Qian Cheng , Weimin Xiao , Jialing Liu , Murali Narasimha
Abstract: A network controller may configure one or more channel state information-reference signal (CSI-RS) configurations for transmitting RSs to user equipments (UEs) for tracking. A CSI-RS configuration may specify a set of CSI-RS resources for transmitting RSs in two consecutive slots. The set of CSI-RS resources may include a plurality of one-port CSI-RS resources configured according to the CSI-RS configuration. The CSI-RS configuration may specify a quasi co-location (QCL) configuration including a set of QCL parameters, where a demodulation reference signal (DMRS) has a QCL relationship with the RS with respect to the set of QCL parameters. The network controller may signal the one or more CSI-RS configurations to UEs.
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公开(公告)号：US20190044678A1
公开(公告)日：2019-02-07
申请号：US16053542
申请日：2018-08-02
Applicant: Futurewei Technologies, Inc.
Inventor： Jialing Liu , Weimin Xiao , Qian Cheng , Murali Narasimha , Brian Classon
Abstract: User Equipments (UEs) may be assigned a set of aggregated component carriers for downlink carrier aggregation and/or carrier selection. Some UEs may be incapable of transmitting uplink signals over all component carriers in their assigned set of aggregated component carriers. In such scenarios, a UE may need to perform SRS switching in order to transmit SRS symbols over all of the component carriers. Embodiments of this disclosure provide various techniques for facilitating SRS switching. For example, a radio resource control (RRC) message may be used to signal a periodic SRS configuration parameter. As another example, a downlink control indication (DCI) message may be used to signal an aperiodic SRS configuration parameter. Many other examples are also provided.
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公开(公告)号：US10542464B2
公开(公告)日：2020-01-21
申请号：US15461088
申请日：2017-03-16
Applicant: Futurewei Technologies, Inc.
Inventor： Murali Narasimha , Philippe Sartori , Vipul Desai , Weimin Xiao , Mazin Ali Al-Shalash , Anthony C.K. Soong
Abstract: It is possible to reduce latency and/or overhead when performing a platoon handover by using the leading vehicle in the platoon to communicate handover requests and/or initial resource requests (e.g., random access transmissions) on behalf of trailing vehicles in the platoon. In one example, a leading vehicle in a platoon communicates a handover request to a source AP to request handover of the entire platoon from the source AP to a target AP. In such an example, the source AP then communicates handover commands to each vehicle in the platoon without receiving separate handover requests from the trailing vehicles, thereby reducing overhead in the access network. The handover commands notify the trailing vehicles of the handover, and may be sequentially communicated to the trailing vehicles based on their order in the platoon.
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Patent Agency Ranking
公开(公告)号：US10313070B2
公开(公告)日：2019-06-04
申请号：US15343093
申请日：2016-11-03
Applicant: Futurewei Technologies, Inc.
Inventor： Murali Narasimha , George Calcev
Abstract: The disclosure relates to technology for assisting a wireless a communication device to acquire access to a millimeter-wave access point (mmW AP). In some embodiments, an angular direction from a mobile wireless communication device to the mmW AP is determined. In some embodiments, the mobile wireless communication device receives information from a wireless network that helps the mobile wireless communication device determine the angular direction. In some embodiments, the signals between wireless network and mobile wireless communication device are below 6 GHz. In some embodiments, the wireless network provides the mobile wireless communication device with the angular direction. Therefore, the mobile wireless communication device is able to configure an antenna to receive and/or transmit a beam in a direction of the mmW AP. The mobile wireless communication may do so during a process of gaining access to the mmW AP.
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公开(公告)号：US10270570B2
公开(公告)日：2019-04-23
申请号：US15477639
申请日：2017-04-03
Applicant: Futurewei Technologies, Inc.
Inventor： Jialing Liu , Weimin Xiao , Qian Cheng , Murali Narasimha , Brian Classon
Abstract: User Equipments (UEs) may be assigned a set of aggregated component carriers for downlink carrier aggregation and/or carrier selection. Some UEs may be incapable of transmitting uplink signals over all component carriers in their assigned set of aggregated component carriers. In such scenarios, a UE may need to perform SRS switching in order to transmit SRS symbols over all of the component carriers. Embodiments of this disclosure provide various techniques for facilitating SRS switching. For example, a radio resource control (RRC) message may be used to signal a periodic SRS configuration parameter. As another example, a downlink control indication (DCI) message may be used to signal an aperiodic SRS configuration parameter. Many other examples are also provided.
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公开(公告)号：US20180368189A1
公开(公告)日：2018-12-20
申请号：US16008783
申请日：2018-06-14
Applicant: Futurewei Technologies, Inc.
Inventor： Murali Narasimha , Weimin Xiao , Qian Cheng , Jialing Liu , Vipul Desai
Abstract: An efficient random access procedure is provided for reduced control overhead of connections in random access systems. A base station transmits one or more synchronization signal (SS) blocks. A UE detects and determines a preferred SS block. The UE transmits multiple random access signals (e.g., PRACH signals) in a RACH occasion. Each PRACH signal is transmitted on a different beam and includes a RACH preamble. The base station receives one or more of the PRACH signals. The RACH occasion and optionally the RACH preamble identify the preferred SS block. The base station determines a preferred PRACH signal. The base station sends a RAR to the UE using the transmit beam of the preferred SS block. The RAR indicates the preferred PRACH signal and an uplink resource allocation. The UE receives the RAR and transmits a message using the transmit beam of the preferred PRACH signal and the uplink resource allocation.
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公开(公告)号：US20180123751A1
公开(公告)日：2018-05-03
申请号：US15343093
申请日：2016-11-03
Applicant: Futurewei Technologies, Inc.
Inventor： Murali Narasimha , George Calcev
CPC classification number: H04L5/0023 , H04L5/006 , H04W16/28 , H04W24/08 , H04W48/00 , H04W64/00 , H04W76/10 , H04W88/08
Abstract: The disclosure relates to technology for assisting a wireless a communication device to acquire access to a millimeter-wave access point (mmW AP). In some embodiments, an angular direction from a mobile wireless communication device to the mmW AP is determined. In some embodiments, the mobile wireless communication device receives information from a wireless network that helps the mobile wireless communication device determine the angular direction. In some embodiments, the signals between wireless network and mobile wireless communication device are below 6 GHz. In some embodiments, the wireless network provides the mobile wireless communication device with the angular direction. Therefore, the mobile wireless communication device is able to configure an antenna to receive and/or transmit a beam in a direction of the mmW AP. The mobile wireless communication may do so during a process of gaining access to the mmW AP.
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公开(公告)号：US20180047284A1
公开(公告)日：2018-02-15
申请号：US15233866
申请日：2016-08-10
Applicant: Futurewei Technologies, Inc.
Inventor： Murali Narasimha , Philippe Jean Marc Michel Sartori , Vipul Desai
Abstract: An apparatus and method are provided for supporting vehicle-to-vehicle communication utilizing a base station. Included is a vehicular network interface configured to receive, from a first subset of a set of vehicles, first messages. The vehicular network interface is further configured to receive composite messages that are generated by a base station based on second messages transmitted by a second subset of the set of vehicles. Also included is circuitry in communication with the vehicular network interface. The circuitry is configured to re-create at least a portion of the second messages based on at least a portion of the first messages and at least a portion of the composite messages.
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