Shabbir A Bagasrawala

US Patent:

20210112453, Apr 15, 2021

Filed:

Sep 1, 2020

Appl. No.:

17/008916

Inventors:

- Tewksbury MA, US
Shabbir A. Bagasrawala - Lexington MA, US

International Classification:

H04W 28/08
H04L 5/00
H04W 8/22
H04W 72/04
H04W 72/12

Abstract:

A system, a method, an apparatus, and a computer program product for transmission of data packets using dual connectivity in wireless communications system. A packet data convergence protocol (PDCP) window is transmitted from a first base station to a second base station. A first time for a successful transmission of a data packet from the first base station to a user equipment is determined. An acknowledgement of a successful transmission of the data packet from the second base station to the user equipment is received. The second base station determines a second time for the successful transmission of the data packet from the second base station to the user equipment based on the received PDCP window. Based on a comparison of the first and second times, a base station to process at least another data packet is determined.

US Patent:

20180227919, Aug 9, 2018

Filed:

Feb 6, 2018

Appl. No.:

15/889508

Inventors:

- Tewksbury MA, US
Si Nguyen - Winchester MA, US
Shabbir A. Bagasrawala - Lexington MA, US

International Classification:

H04W 72/04
H04L 5/00

Abstract:

A method, system, and computer program product for transmission of data in a wireless communications system. A first downlink data is transmitted to a user equipment using a first downlink frequency. A first uplink data is received from the user equipment utilizing a first uplink frequency. A second downlink data is transmitted to the user equipment using a second downlink frequency. A second uplink data is received using the first uplink frequency.

US Patent:

20170295517, Oct 12, 2017

Filed:

Apr 10, 2017

Appl. No.:

15/483038

Inventors:

- Tewksbury MA, US
Shabbir A. Bagasrawala - Lexington MA, US

International Classification:

H04W 28/08
H04W 72/04
H04W 72/12
H04L 5/00
H04W 8/22

Abstract:

A system, a method, an apparatus, and a computer program product for transmission of data packets using dual connectivity in wireless communications system. A packet data convergence protocol (PDCP) window is transmitted from a first base station to a second base station. A first time for a successful transmission of a data packet from the first base station to a user equipment is determined. An acknowledgement of a successful transmission of the data packet from the second base station to the user equipment is received. The second base station determines a second time for the successful transmission of the data packet from the second base station to the user equipment based on the received PDCP window. Based on a comparison of the first and second times, a base station to process at least another data packet is determined.

US Patent:

20170295591, Oct 12, 2017

Filed:

Apr 10, 2017

Appl. No.:

15/483068

Inventors:

- Tewksbury MA, US
Shabbir A. Bagasrawala - Lexington MA, US

International Classification:

H04W 72/12
H04W 28/08

Abstract:

A system, an apparatus, a method and a computer program product for transmission of data packets using wireless data priority services in wireless communications system. A priority level for a user equipment is determined. Based on the determined priority level for the user equipment, an admission control procedure to reserve transmission capacity for the user equipment is executed. Based on the determined priority level for the user equipment and the reserved transmission capacity, at least one data packet for transmission to and/or from the user equipment is scheduled. Based on the scheduling, the data packet is transmitted.

US Patent:

20150017928, Jan 15, 2015

Filed:

Jul 9, 2014

Appl. No.:

14/327356

Inventors:

- Acton MA, US
Shabbir A. Bagasrawala - Westford MA, US

Assignee:

Azimuth Systems, Inc. - Acton MA

International Classification:

H04B 17/00

US Classification:

455 6714

Abstract:

An over-the-air test system for wireless devices uses log files to simulate realistic time-varying channel conditions and provides channel state information to enable dynamic adaptation to current channel conditions. A signal transmission device transmits test signals to the device under test via a channel emulator. The channel emulator causes the test signals to exhibit channel conditions which vary over time. An over-the-air test chamber in which the device under test is disposed includes multiple antennas which are driven with the test signals from the channel emulator. Channel state information is sent from the device under test to the signal transmission device. The signal transmission device responds to the channel state information by adapting to current channel conditions.