公开(公告)号：US10999104B2

公开(公告)日：2021-05-04

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

IPC: H04K1/10 ,  H04L27/28 ,  H04L25/02 ,  H04L27/26 ,  H04L5/00

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：US10805972B2

公开(公告)日：2020-10-13

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: H04W24/00 ,  H04W76/14 ,  H04W40/02 ,  H04W40/20 ,  H04W40/22 ,  H04W28/02 ,  H04W40/16 ,  H04W84/20

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：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：US20180007659A1

公开(公告)日：2018-01-04

申请号：US15705998

申请日：2017-09-15

Applicant: Keyvan Zarifi ,  Mohammadhadi Baligh

Inventor： Keyvan Zarifi ,  Mohammadhadi Baligh

IPC: H04W68/02 ,  H04W76/02

CPC classification number: H04W68/02 ,  H04W76/11

Abstract: A paging method and system in a wireless network for a target device that is enabled to transition between an active state and a standby state, including: tracking a location of a target device within the network while the target device is in the standby state based on a periodic identifying signal from the target device; determining a serving transmission point for the target device based on the tracking; and instructing the serving transmission point to transmit a paging message to the target device.

公开(公告)号：US09769793B2

公开(公告)日：2017-09-19

申请号：US14985991

申请日：2015-12-31

Applicant: Keyvan Zarifi ,  Mohammadhadi Baligh

Inventor： Keyvan Zarifi ,  Mohammadhadi Baligh

IPC: H04W68/00 ,  H04W68/02 ,  H04W76/02

CPC classification number: H04W68/02 ,  H04W76/11

Abstract: A paging method and system in a wireless network for a target device that is enabled to transition between an active state and a standby state, including: tracking a location of a target device within the network while the target device is in the standby state based on a periodic identifying signal from the target device; determining a serving transmission point for the target device based on the tracking; and instructing the serving transmission point to transmit a paging message to the target device.

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：US09668194B2

公开(公告)日：2017-05-30

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: H04W76/02 ,  H04W40/02 ,  H04W40/20 ,  H04W40/22 ,  H04W28/02

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.

公开(公告)号：US20140029522A1

公开(公告)日：2014-01-30

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: H04W72/04

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.

Abstract translation: 提供一种用于在无线多输入多输出（MIMO）系统中分配下行链路发射功率的系统。 在操作期间，系统识别用于在同一时隙上从一个或多个发射机接收信号的一组接收机，为所识别的接收机与发射机之间的通信信道接收信道状态信息（CSI），并构建基于 CSI。 该系统还基于与所识别的接收机相关联的效用函数，导出预编码器的一组功率尺度因子，使得功率尺度因子优化效用函数。 相应的功率比例因子将发射到相应接收机的功率缩放。