-
公开(公告)号：US11178580B2
公开(公告)日：2021-11-16
申请号：US16557089
申请日：2019-08-30
Applicant: Mohammadhadi Baligh , Jianglei Ma , Alireza Bayesteh , Usa Vilaipornsawai , Yicheng Lin , Keyvan Zarifi
Inventor： Mohammadhadi Baligh , Jianglei Ma , Alireza Bayesteh , Usa Vilaipornsawai , Yicheng Lin , Keyvan Zarifi
IPC: H04W36/00 , H04L5/00 , H04B7/0417
Abstract: User Equipment (UE) mobility in Ultra Dense Networks (UDNs) is based on communication signal layers, which could include respective data streams in an Orthogonal Frequency Division Multiplexing (OFDM) domain, a code domain using respective codebooks, and/or a spatial domain, for example. A UE uses candidate layer decoding parameters in applying layer-based decoding to communication signals that it received from network nodes. Layers could be allocated to UEs and transition between network nodes as UEs move between different network service areas. Layers could instead be allocated to network nodes. Layer-based decoding provides for UE mobility without requiring explicit handover processing every time a UE moves between different service areas.
-
公开(公告)号：US20210112609A1
公开(公告)日：2021-04-15
申请号：US17067881
申请日：2020-10-12
Applicant: MOHAMMADHADI BALIGH , KEYVAN ZARIFI , JIANGLEI MA
Inventor： MOHAMMADHADI BALIGH , KEYVAN ZARIFI , JIANGLEI MA
Abstract: A master user equipment (UE) device may coordinate device-to-device (D2D) communications amongst a plurality of UE devices. For example, a UE device, which has been designated as a master UE device, may coordinate a D2D communication between a first UE device and a second UE device. The master UE device may be a UE device that obtains an indication that it is a master UE device that is to coordinate D2D communications amongst the plurality of UE devices. In some embodiments, the coordinating the D2D communication may be on behalf of a network and/or to facilitate wireless communication between the network and at least one of the plurality of UE devices.
-
公开(公告)号：US20200304344A1
公开(公告)日：2020-09-24
申请号：US16893905
申请日：2020-06-05
Applicant: MOHAMMADHADI BALIGH , KEYVAN ZARIFI , JIANGLEI MA , KELVIN KAR KIN AU
Inventor： MOHAMMADHADI BALIGH , KEYVAN ZARIFI , JIANGLEI MA , KELVIN KAR KIN AU
Abstract: Systems and methods of assigning channel state information-reference symbol (CSI-RS) ports to user equipment are provided. In addition resource configurations for transmission of CSI-RS are provided, and methods of mapping CSI-RS sequences to such resources are provided.
-
公开(公告)号：US10651998B2
公开(公告)日：2020-05-12
申请号：US16054707
申请日：2018-08-03
Applicant: Aman Jassal , Keyvan Zarifi
Inventor： Aman Jassal , Keyvan Zarifi
Abstract: Networks use channel state information reference signals (CSI-RSs) to measure channel conditions between a user equipment (UE) and a transmit/receive point (TRP) in a cell. The resources configured for the transmission of a CSI-RS may be indicated to the UE using higher layer signaling. Measurement results for a CSI-RS are transmitted by the UE in the form of a measurement report. A need exists for signaling designs that aim to provide more flexible and efficient signaling of CSI-RS resource configurations and measurement reports. In some embodiments, CSI-RS resource configurations and measurement reports are resource-specific. The CSI-RS resource configurations may be independent from an identifier of the cell that the CSI-RS is transmitted from, and the measurement reports do not necessarily include the identifier of the cell. Advantages may include allowing the network to freely allocate CSI-RS resources without the need for reconfiguration at the UE side.
-
公开(公告)号：US20200059830A1
公开(公告)日：2020-02-20
申请号：US16557089
申请日：2019-08-30
Applicant: MOHAMMADHADI BALIGH , JIANGLEI MA , ALIREZA BAYESTEH , USA VILAIPORNSAWAI , YICHENG LIN , KEYVAN ZARIFI
Inventor： MOHAMMADHADI BALIGH , JIANGLEI MA , ALIREZA BAYESTEH , USA VILAIPORNSAWAI , YICHENG LIN , KEYVAN ZARIFI
IPC: H04W36/00
Abstract: User Equipment (UE) mobility in Ultra Dense Networks (UDNs) is based on communication signal layers, which could include respective data streams in an Orthogonal Frequency Division Multiplexing (OFDM) domain, a code domain using respective codebooks, and/or a spatial domain, for example. A UE uses candidate layer decoding parameters in applying layer-based decoding to communication signals that it received from network nodes. Layers could be allocated to UEs and transition between network nodes as UEs move between different network service areas. Layers could instead be allocated to network nodes. Layer-based decoding provides for UE mobility without requiring explicit handover processing every time a UE moves between different service areas.
-
Patent Agency Ranking
公开(公告)号：US20190053287A1
公开(公告)日：2019-02-14
申请号：US16100125
申请日：2018-08-09
Applicant: YICHENG LIN , KEYVAN ZARIFI , MOHAMMADHADI BALIGH
Inventor： YICHENG LIN , KEYVAN ZARIFI , MOHAMMADHADI BALIGH
Abstract: Systems and methods are provided for transmit signalling to configure a UE with a UE specific root to use in generating a Zhadoff Chu (ZC) sequence for reference signal transmission. With conventional LTE, a cell specific root is used within each cell. There is a need for a more flexible association between roots and UEs that, for example, allows for multiple roots to be associated with a cell. The provided approach may help with maintaining re-use distance as networks become denser. The method provided in this embodiment improves the capabilities of automatic driving and ADAS of electric vehicles. The method can be applied to vehicle networking, such as V2X, LTE-V, V2X, etc.
-
公开(公告)号：US09674801B2
公开(公告)日：2017-06-06
申请号：US13558713
申请日：2012-07-26
Applicant: Hamidreza Farmanbar , Mohammadhadi Baligh , Keyvan Zarifi
Inventor： Hamidreza Farmanbar , Mohammadhadi Baligh , Keyvan Zarifi
IPC: H04W52/42 , H04L5/00 , H04B7/024 , H04B7/0426 , H04B7/0452 , H04B7/06 , H04W52/34 , H04W52/36
CPC classification number: H04W52/42 , H04B7/024 , H04B7/0426 , H04B7/0452 , H04B7/0626 , H04L5/0035 , H04W52/346 , H04W52/367
Abstract: A system is provided for allocating downlink transmit power in a wireless multiple-input multiple-output (MIMO) system. During operation, the system identifies a set of receivers for receiving signals from one or more transmitters on a same time-frequency slot, receives channel state information (CSI) for communication channels between the identified receivers and the transmitters, and constructs a precoder based on the CSI. The system further derives a set of power-scale factors for the precoder based on a utility function associated with the identified receivers such that the power-scale factors optimize the utility function. A respective power-scale factor scales power transmitted to a corresponding receiver.
-
公开(公告)号：US09635598B2
公开(公告)日：2017-04-25
申请号：US14609644
申请日：2015-01-30
Applicant: Mohammadhadi Baligh , Keyvan Zarifi , Jianglei Ma
Inventor： Mohammadhadi Baligh , Keyvan Zarifi , Jianglei Ma
Abstract: A master user equipment (UE) device may coordinate device-to-device (D2D) communications amongst a plurality of UE devices. For example, a UE device, which has been designated as a master UE device, may coordinate a D2D communication between a first UE device and a second UE device. The master UE device may be a UE device that obtains an indication that it is a master UE device that is to coordinate D2D communications amongst the plurality of UE devices. In some embodiments, the coordinating the D2D communication may be on behalf of a network and/or to facilitate wireless communication between the network and at least one of the plurality of UE devices.
-
公开(公告)号：US20220124796A1
公开(公告)日：2022-04-21
申请号：US17504200
申请日：2021-10-18
Applicant: MOHAMED ADEL SALEM , KEYVAN ZARIFI
Inventor： MOHAMED ADEL SALEM , KEYVAN ZARIFI
Abstract: Some embodiments of the present disclosure provide for configuring channel access mechanisms in a mmWave shared spectrum mobile communication network. The channel access mechanisms are to be used by a user equipment (UE) and a serving node in the UE's serving cell. The configuring may use a single, cell-specific higher layer parameter or a combination of two cell-specific higher layer parameters. The parameters may configure the UE and the node to perform channel sensing before transmitting to initiate a channel occupancy. Alternatively, the UE and the node may be configured to transmit directly without channel sensing. The parameters may configure a receiver (the UE or the node) to perform channel sensing before transmitting a channel idle indication to the transmitter as part of a channel access procedure to initiate a channel occupancy. Alternatively, the parameters may configure the UE and the node to receive without channel sensing.
-
公开(公告)号：US11272557B2
公开(公告)日：2022-03-08
申请号：US17067881
申请日：2020-10-12
Applicant: Mohammadhadi Baligh , Keyvan Zarifi , Jianglei Ma
Inventor： Mohammadhadi Baligh , Keyvan Zarifi , Jianglei Ma
Abstract: A master user equipment (UE) device may coordinate device-to-device (D2D) communications amongst a plurality of UE devices. For example, a UE device, which has been designated as a master UE device, may coordinate a D2D communication between a first UE device and a second UE device. The master UE device may be a UE device that obtains an indication that it is a master UE device that is to coordinate D2D communications amongst the plurality of UE devices. In some embodiments, the coordinating the D2D communication may be on behalf of a network and/or to facilitate wireless communication between the network and at least one of the plurality of UE devices.
-
-
-
-
-
-
-
-
-
Search Results
55
records
(took 0.015 seconds)
