公开(公告)号：US20180123850A1

公开(公告)日：2018-05-03

申请号：US15801177

申请日：2017-11-01

Applicant: KEYVAN ZARIFI ,  MOHAMMADHADI BALIGH ,  USA VILAIPORNSAWAI

Inventor： KEYVAN ZARIFI ,  MOHAMMADHADI BALIGH ,  USA VILAIPORNSAWAI

IPC: H04L27/26 ,  H04L5/00 ,  H04J13/00

Abstract: Methods and devices for configurable sequence usage for user equipment (UE) uplink reference signaling are provided. In one provided method, a transmission reception point (TRP) in a wireless communication network receives a first UL reference signal (RS) associated with a first UL RS sequence from a first UE and receives a second UL RS associated with a second UL RS sequence from a second UE, the first and second UL RS sequences being non-orthogonal. In another provided method, A UE determines an UL RS sequence based on a UL RS sequence root, the UL RS sequence root being a UE-specific root and being independent of a cell identifier of a cell serving the UE. The UE sends an UL RS associated with the UL RS sequence, the UL RS sequence being a Zadoff-Chu sequence.

公开(公告)号：US20160227463A1

公开(公告)日：2016-08-04

申请号：US14609644

申请日：2015-01-30

Applicant: MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  JIANGLEI MA

Inventor： MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  JIANGLEI MA

IPC: H04W40/02 ,  H04W76/02

CPC classification number: H04W76/14 ,  H04W28/0278 ,  H04W40/02 ,  H04W40/16 ,  H04W40/20 ,  H04W40/22 ,  H04W76/023 ,  H04W84/20 ,  Y02B60/50 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/21 ,  Y02D70/30 ,  Y02D70/38 ,  Y02D70/39

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.

Abstract translation: 主用户设备（UE）设备可以在多个UE设备之间协调设备到设备（D2D）通信。 例如，已经被指定为主UE设备的UE设备可以协调第一UE设备和第二UE设备之间的D2D通信。 主UE设备可以是获得其是要在多个UE设备之间协调D2D通信的主UE设备的指示的UE设备。 在一些实施例中，协调D2D通信可以代表网络和/或促进网络与多个UE设备中的至少一个之间的无线通信。

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

IPC: H04W74/02 ,  H04W74/00 ,  H04L5/00 ,  H04W16/14

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：US20190261443A1

公开(公告)日：2019-08-22

申请号：US16404882

申请日：2019-05-07

Applicant: MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  JIANGLEI MA

Inventor： MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  JIANGLEI MA

IPC: H04W76/14 ,  H04W40/02 ,  H04W40/16 ,  H04W40/20 ,  H04W40/22 ,  H04W28/02

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：US20180278450A1

公开(公告)日：2018-09-27

申请号：US15927353

申请日：2018-03-21

Applicant: KEYVAN ZARIFI ,  MOHAMMADHADI BALIGH ,  YICHENG LIN

Inventor： KEYVAN ZARIFI ,  MOHAMMADHADI BALIGH ,  YICHENG LIN

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/024 ,  H04W52/32

Abstract: Methods and devices for assigning sounding reference signals (SRS) resources to UEs in a wireless communication network are provided. Configuration information is sent to a UE, the configuration information pertaining to a first sequence identifier (ID) to be used by the UE to generate a plurality of SRS sequences to be sent by the UE as at least part of a first SRS. Each SRS sequence of the plurality of SRS sequences is a function of a respective SRS sequence root that is a function of the first sequence ID. The first sequence ID may be a UE-specific sequence ID that is a function of a UE-specific ID associated with the UE, such as a Cell-Radio Network Temporary Identifier (C-RNTI).

公开(公告)号：US20180124733A1

公开(公告)日：2018-05-03

申请号：US15789650

申请日：2017-10-20

Applicant: USA VILAIPORNSAWAI ,  MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  YICHENG LIN

Inventor： USA VILAIPORNSAWAI ,  MOHAMMADHADI BALIGH ,  KEYVAN ZARIFI ,  YICHENG LIN

IPC: H04W64/00 ,  H04W76/04 ,  H04W52/02

CPC classification number: H04W64/00 ,  H04W52/0216 ,  H04W52/0229 ,  H04W76/27 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/23 ,  Y02D70/24

Abstract: Methods and devices for uplink-based User Equipment (UE) tracking for UEs operating in a connected inactive operating state are provided. A transmit-receive point (TRP) transmits parameters to a UE that allow the UE to uniquely determine a UE-specific tracking sequence and assigned time-frequency (TF) resource that are independent of a TRP identifier associated with the TRP. The UE determines the UE-specific tracking sequence and assigned TF resource based at least in part on the parameters received from the TRP. While in the connected inactive operating state, the UE transmits a tracking signal that includes the UE-specific tracking sequence in accordance with the assigned TF resource. The TRP receives the tracking signal from the UE, detects the UE in accordance with the UE-specific tracking sequence to produce a UE detection status, and transmits a tracking response to the UE in accordance with the UE detection status.

公开(公告)号：US20170181041A1

公开(公告)日：2017-06-22

申请号：US15073788

申请日：2016-03-18

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

CPC classification number: H04W36/0011 ,  H04L5/0091 ,  H04W36/0072

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：US20220022158A1

公开(公告)日：2022-01-20

申请号：US17370544

申请日：2021-07-08

Applicant: KEYVAN ZARIFI ,  NAVID TADAYON ,  ALIREZA BAYESTEH

Inventor： KEYVAN ZARIFI ,  NAVID TADAYON ,  ALIREZA BAYESTEH

IPC: H04W64/00 ,  H04W24/10 ,  H04W8/24 ,  H04L5/00

Abstract: Methods and devices utilizing downlink channel measurements for customization of downlink positioning reference signals (DL PRs) are provided. A serving base station (BS) for a targeted device and one or more non-serving BSs transmit respective downlink reference signals (DL RSs) to the targeted device. The targeted device reports respective downlink channel measurement information for each BS based on the received DL RSs. The BSs each transmit a respective DL PRS to the targeted device for downlink positioning measurement, wherein the respective DL PRS for each BS is configured based in part on the respective downlink channel measurement information reported by the targeted device for that BS. This allows the DL PRS for each BS to be configured taking into account downlink channel conditions between the BS and the targeted device, which can potentially improve positioning measurement accuracy by improving reception of the DL PRS at the targeted device.

公开(公告)号：US20210302561A1

公开(公告)日：2021-09-30

申请号：US16835852

申请日：2020-03-31

Applicant: ALIREZA BAYESTEH ,  KEYVAN ZARIFI ,  MOHAMMADHADI BALIGH ,  NAVID TADAYON

Inventor： ALIREZA BAYESTEH ,  KEYVAN ZARIFI ,  MOHAMMADHADI BALIGH ,  NAVID TADAYON

IPC: G01S13/42

Abstract: Methods and apparatus are provided that may simplify and enhance the location of nodes in a network, including ED and mobile TPs, even if all or many of the nodes are mobile. The methods may be used to enable single TP positioning, and may be used to reduce synchronization error. The provided methods make use of smart reflectors having known location. By processing a combination of signals, which may include an original transmitted signal, and/or one or more reflected signals, the location of a receiving node can be determined. Media tagging may be employed to allow a receiver to detect the identity of the nearby reflectors (with known locations) and based on the identity determine the locations of the reflectors. Using this information, the receiving node can detect its location regardless of knowing the transmission source and/or location.

公开(公告)号：US20200221405A1

公开(公告)日：2020-07-09

申请号：US16731347

申请日：2019-12-31

Applicant: KEYVAN ZARIFI

Inventor： KEYVAN ZARIFI

IPC: H04W56/00 ,  H04W72/00 ,  H04L5/00 ,  H04W52/24 ,  H04W52/32

Abstract: Aspects of the present application provide methods and devices in a communication network that aid in implementing sounding reference signal (SRS) measurement by multiple cells (i.e. serving cells and non-serving cells, also known as “neighbor cells”) as well as NR LMUs. This enhanced SRS measurement based on multiple cell and/or NR LMU measurements may facilitate more beneficial usages such as UL-based positioning and UL-based mobility.