Patents by Inventor Sharad Deepak Sambhwani

Sharad Deepak Sambhwani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11044709
    Abstract: Aspects of the present disclosure provide techniques and apparatus for power savings for control channel monitoring for enhanced machine type communications (eMTC). In one aspect, a method is provided which may be performed by a wireless device such as a low cost wireless device, which may be user equipment (UE) or an eMTC UE. The method generally includes determining whether a downlink channel is present in a subframe; and causing the UE to enter a low power mode for a duration based on a determination that the downlink channel is not present in the subframe.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: June 22, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Alberto Rico Alvarino, Sharad Deepak Sambhwani, Juan Montojo, Hao Xu, Durga Prasad Malladi, Xiao Feng Wang, Wanshi Chen
  • Patent number: 10674454
    Abstract: The disclosure provides for a compressed mode transmission gap in wireless communications. A user equipment (UE) may receiving a downlink dedicated physical channel (DPCH) having a slot-format and a spreading factor during a first compression interval. The downlink DPCH may not include a compressed-mode transmission gap during the first compression interval. The UE may receive the downlink DPCH having the same slot-format and the same spreading factor during a second compression interval. The UE may determine that the downlink DPCH includes a compressed-mode transmission gap during the second compression interval. A set of slots of the downlink DPCH during the transmission gap may be punctured. The UE may decode the downlink DPCH for the second compression interval based on a set of remaining slots received during the second compression interval. In an aspect, the UE may estimate a SIR based on a TPC command in a last slot of the transmission gap.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: June 2, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Sony Akkarakaran, Peyman Razaghi, Sharad Deepak Sambhwani
  • Patent number: 10462834
    Abstract: Systems, methods, and apparatuses for improved traffic management in wireless communications are disclosed. Aspects of the present disclosure provide real-time assessments to a network by leveraging measurement reports from user equipment (UE). In some aspects, the network utilizes channel quality indicator (CQI) information from each of a serving cell and a neighboring cell to identify UE capabilities and expected UE performance prior to either offloading or rerouting traffic to the UE. Accordingly, based on the received CQI information and a greater understanding of the anticipated UE performance, the radio network controller (RNC) may be better equipped to determine whether to offload and/or reroute the traffic scheduled for transmission to the UE via the neighboring cell or the serving cell.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: October 29, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Ravi Agarwal, Sharad Deepak Sambhwani, Francesco Pica
  • Patent number: 10064215
    Abstract: Aspects are described for modifying transmission of control channel signaling during wireless communication. The described aspects include detecting a communication condition corresponding to signaling information transmitted on a Dedicated Channel (DCH); determining whether a Dedicated Physical Data Channel (DPDCH) is transmitted based on detecting the communication condition; and performing a Dedicated Physical Control Channel (DPCCH) gating pattern in response to the determination that the DPDCH is not transmitted, wherein performing the DPCCH gating pattern includes intermittently transmitting the DPCCH when one or more signaling radio bearers (SRBs) are not being transmitted.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: August 28, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Sony Akkarakaran, Arjun Bharadwaj, Peyman Razaghi, Sharad Deepak Sambhwani
  • Patent number: 10004106
    Abstract: The present disclosure presents aspects for performing continuous packet connectivity (CPC) with dedicated channel (DCH) enhancements at a user equipment (UE). For example, the aspects may include identifying whether DTX is allowed in association with the CPC at the UE during a time period, determining whether DTX is allowed in association with the DCH enhancements at the UE during the time period, and performing DTX at the UE during the time period when both the CPC and the DCH enhancements allow for DTX. As such, CPC with DCH enhancements at a UE may be performed.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 19, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Sony Akkarakaran, Peyman Razaghi, Sharad Deepak Sambhwani
  • Patent number: 9998961
    Abstract: Apparatus and methods of mobility management include identifying a target cell as an active set candidate. The apparatus and methods further include determining that a trigger adjustment condition exists, wherein the trigger adjustment condition triggers an adjustment of a timing value that indicates a sending time of a target cell add message to a serving cell. Moreover, the apparatus and methods include sending the target cell add message including the target cell to the serving cell based on determining that the trigger adjustment condition exists.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: June 12, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Siddharth Mohan, Rohit Kapoor, Haitong Sun, Sharad Deepak Sambhwani
  • Publication number: 20170273011
    Abstract: Aspects of the present disclosure provide techniques and apparatus for assisted cell acquisition by a wireless node, such as a smartphone, enhanced machine type communications (eMTC) device, and/or wearable. In one aspect, a method is provided which may be performed by the wireless node. The method generally includes obtaining assistance information for use in performing a cell search and transmitting the assistance information to another wireless node. The other wireless node can be an eMTC device such as a wearable. The other wireless node can receive the assistance information for use in performing a cell search and perform a cell search using the assistance information. The techniques for assisted cell search for low cost devices can lead to a faster cell acquisition time may, reduced power consumption, and longer battery life.
    Type: Application
    Filed: March 15, 2017
    Publication date: September 21, 2017
    Inventors: Alberto RICO ALVARINO, Sharad Deepak SAMBHWANI, Hao XU
  • Publication number: 20170265171
    Abstract: Aspects of the present disclosure provide techniques and apparatus for power savings for control channel monitoring for enhanced machine type communications (eMTC). In one aspect, a method is provided which may be performed by a wireless device such as a low cost wireless device, which may be user equipment (UE) or an eMTC UE. The method generally includes determining whether a downlink channel is present in a subframe; and causing the UE to enter a low power mode for a duration based on a determination that the downlink channel is not present in the subframe.
    Type: Application
    Filed: March 9, 2017
    Publication date: September 14, 2017
    Inventors: Alberto RICO ALVARINO, Sharad Deepak SAMBHWANI, Juan MONTOJO, Hao XU, Durga Prasad MALLADI, Xiao Feng WANG, Wanshi CHEN
  • Patent number: 9706451
    Abstract: Aspects related to pre-configuring for a serving cell change to neighbor cells are described. In one example, a user equipment (UE) may camp on a first cell. The UE may receive at least one communication including target cell pre-configuration information for one or more neighbor cells eligible for pre-configuration. The UE may determine that the first cell is no longer providing adequate service and identify a target cell, which may be one of the one or more neighbor cells, but is not part of an active set for the UE. The UE may transmit a message (e.g., Event 1d) requesting a serving cell change to the target cell. The UE may configure to receive service from the target cell based on the pre-configuration information associated with the target cell. The UE may receive an indication to perform the serving cell change and perform the serving cell change.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: July 11, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Siddharth Mohan, Rohit Kapoor, Haitong Sun, Sharad Deepak Sambhwani
  • Patent number: 9699677
    Abstract: Aspects of the present disclosures are directed to outer loop power control (OLPC) mechanisms that can achieve or realize the desired block error rate (BLER) performance in a wireless network that supports frame early termination (FET) utilizing multiple decoding attempts during the same transmit time interval.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: July 4, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Peyman Razaghi, Sony John Akkarakaran, Sharad Deepak Sambhwani
  • Patent number: 9674782
    Abstract: The present disclosure presents a method and an apparatus for reducing battery consumption at a user equipment (UE). For example, the method may include configuring a 10 ms transmission mode on an uplink (UL) channel at the UE, indicating configuration of the 10 ms transmission mode to a base station in communication with the UE, compressing a 20 ms transmission associated with a 20 ms transmission time interval (TTI) into a 10 ms compressed transmission, transmitting the 10 ms compressed transmission during a first 10 ms of the 20 ms TTI, and performing a discontinuous transmission (DTX) of the UL channel during a second 10 ms of the 20 ms TTI. As such, reduced battery consumption at a UE may be achieved.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 6, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Peyman Razaghi, Sony Akkarakaran, Sharad Deepak Sambhwani
  • Patent number: 9674800
    Abstract: A method for wireless communications is provided. The method includes applying independent power controls to two or more carriers from a set of high speed packet access signals. The method includes monitoring power across the two or more carriers to determine power levels for the set of high speed packet access signals. The method also includes automatically scaling at least one of the independent power controls in view of the determined power levels for the set of high speed packet access signals. The method also includes setting the minimum power offset of the data channel independently on each carrier.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: June 6, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Danlu Zhang, Pavan Kumar Vitthaladevuni, Jilei Hou, Ozcan Ozturk, Arjun Bharadwaj, Ravi Agarwal, Sharad Deepak Sambhwani
  • Patent number: 9634814
    Abstract: An apparatus and method for communication including determining an assignment for one of a plurality of symbol durations in a format combination; determining if at least one bit from one or more first upper channels is available if the assignment is associated with the one or more first upper channels and occupying the one of the plurality of symbol durations with the at least one bit, or if unavailable, occupying the one of the plurality of symbol durations with at least one bit from one or more second upper channels or another first upper channel, wherein the first upper channels and the second upper channels are different; and disabling transmission of format information; or including enabling a BTFD hypothesis testing mode; receiving one or more symbol durations on a physical channel; and attempting to decode the received symbol duration with a first hypothesis that a DCCH channel is not transmitted.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: April 25, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sony Akkarakaran, Sharad Deepak Sambhwani, Liangming Wu, Peyman Razaghi
  • Patent number: 9635646
    Abstract: Methods and apparatuses relating to wireless communication of a user equipment (UE) are provided including receiving downlink wireless communications from multiple cells in an active set, receiving at least one of scheduling information for one or more downlink transmissions or one or more non-serving resource grants from a first cell in the active set, and receiving one or more serving resource grants for uplink communications from a second cell in the active set. In the wireless network, a second cell can be assigned as an uplink serving cell for uplink communications with the UE that is different from a first cell assigned as a downlink serving cell for downlink communications with the UE, and downlink transmissions can be scheduled from the downlink serving cell to the UE, and/or one or more serving resource grants can be transmitted from the uplink serving cell to the UE.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: April 25, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sharad Deepak Sambhwani, Arjun Bharadwaj
  • Patent number: 9615321
    Abstract: User Equipments (UEs) can be adapted to enter into a lower RRC state from a higher RRC state, and search for one or more layers of higher priority within a predetermined period of time upon entering into the lower RRC state. According to at least one aspect, this search for one or more layers of higher priority may be performed irrespective of RF quality of a current serving cell. According to at least another aspect, this search for one or more layers of higher priority may be conducted within the predetermined period of time if a wait period has elapsed since the UE camped on the current serving cell. If the wait period has not elapsed since camping on the current serving cell, the search for one or more layers of higher priority may be performed within the predetermined period of time following a duration of the wait period.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: April 4, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Francesco Pica, Heechoon Lee, Sharad Deepak Sambhwani, Uzma Khan
  • Patent number: 9608707
    Abstract: Aspects for balancing power output on the plurality of antennas for the transmission of a transport block are disclosed. In accordance with the present disclosure, a transmitter may balance the power output on a plurality of transmit antennas in a multiple-input multiple-output (MIMO) system by having a precoded data block bypass a virtual antenna mapping of the overhead channels (e.g., control channels). Additionally or alternatively, the transmitter may balance the power output on the plurality of transmit antennas by applying an inverse mapping parameter during the precoding process to the transport block to generate a plurality of inverse mapped precoded data blocks. In some examples, the inverse mapping parameter may be an inverse of the mapping parameter. Thus, in accordance with the present disclosure, precoding a transport block may include selecting a precoding weight for each of the plurality of antennas from an unrestricted precoding weight set.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: March 28, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Heechoon Lee, Sanaz Barghi, Feng Han, Sharad Deepak Sambhwani
  • Patent number: 9603106
    Abstract: The disclosure provides for reducing uplink control channel overhead at a user equipment (UE). The UE may determine that a total transmit power of the UE exceeds an allocated power. The UE may then scale a transmit power of a high-speed dedicated physical control channel (HS-DPCCH) relative to a dedicated physical control channel (DPCCH) in response to the determination that the UE is power limited. The UE may scale the transmit power of the HS-DPCCH when there is no downlink activity as determined, for example, by expiration of a timer. In an aspect, the UE may transmit an indication that the UE is power limited, for example, by using a most-significant bit of a transport format combination index. In another aspect, the UE may receive an indication that a downlink transmission is imminent and, in response, the UE may transmit the HS-DPCCH without scaling its corresponding transmit power.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: March 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Arjun Bharadwaj, Sharad Deepak Sambhwani
  • Patent number: 9591623
    Abstract: A random access procedure for UEs in Cell_FACH or another suitable non-DCH state, which enables concurrent deployment of 2 ms and 10 ms TTIs for uplink transmissions on the E-DCH. In some examples, the procedure may further enable utilization of a Rel-99 PRACH transmission by UEs in the Cell_FACH or other suitable non-DCH state.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: March 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sharad Deepak Sambhwani, Ravi Agarwal, Rohit Kapoor
  • Patent number: 9590714
    Abstract: Apparatus and method for wireless communication in a wireless communication network includes mapping a PCI command to different symbols across a plurality of slots, allocating the PCI command to the plurality of slots, and transmitting the PCI command across the plurality of slots on an Fractional Transmit Precoding Information Channel (F-TPICH) from a network device to a user equipment (UE).
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: March 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sharad Deepak Sambhwani, Arjun Bharadwaj, Rohit Kapoor
  • Patent number: RE47110
    Abstract: Systems and methodologies are described that facilitate reporting an uplink power headroom (UPH) during an E-DCH transmission in a CELL_FACH state. For a E-DCH transmission, a reduced measurement period can be utilized in order to report a UPH measurement. In particular, the reduced measurement period can be less than 100 milliseconds. The UPH measurement can be communicated based upon receipt of AICH/E-AICH and transmission of DPCCH for a configurable number of radio frames. The UPH measurement can be based upon the transmitted power prior to actual data transmission. Additionally, the UPH measurement can be included within scheduling information portion of a MAC header.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: October 30, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Sharad Deepak Sambhwani, Mehmet Yavuz