Patents by Inventor Arjun Bharadwaj

Arjun Bharadwaj 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).

  • Publication number: 20180249421
    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a power control command including a target receiver power level for uplink transmission. The apparatus is configured to transmit a frame to a wireless device. The frame may include information associated with the determined target receiver power level for uplink transmission from the wireless device and a transmit power level at which the frame is to be transmitted. The information may enable the wireless device to compute a transmit power for the uplink transmission. The frame may include power control commands for other wireless devices.
    Type: Application
    Filed: May 1, 2018
    Publication date: August 30, 2018
    Inventors: Arjun BHARADWAJ, Bin TIAN
  • 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
  • Publication number: 20180146458
    Abstract: Methods and systems for wireless communication are disclosed. In one aspect, a method includes generating device specific transmission control information for each of two devices, transmitting the transmission control information for each device over different frequencies, and transmitting data to each of the devices as part of a communication according to the respective transmission control information. In some aspects, the transmission control information for each device is encoded based on an identifier of the device. For example, in some aspects, an error detection value such as a cyclic redundancy check, is exclusive or'ed with an identifier of the device, such as an AID, PAID, or group identifier. The resulting value is transmitted along with the transmission control information. A device receiving the wireless frame may only be able to decode its own transmission control information, as the decoding is also based on the receiving device's identifier.
    Type: Application
    Filed: January 5, 2018
    Publication date: May 24, 2018
    Inventors: Arjun Bharadwaj, Bin Tian
  • Patent number: 9980233
    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmission. The apparatus is configured to transmit a frame to a wireless device. The frame may include information associated with the determined target receiver power level for uplink transmission and a transmit power level at which the frame is to be transmitted.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 22, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Arjun Bharadwaj, Bin Tian
  • Publication number: 20170181136
    Abstract: Methods, apparatuses, and computer readable media for resource allocation signaling in a high efficiency wireless local area network (WLAN) are disclosed. A transmitter may generate an indication that a first channel of a plurality of channels associated with a transmission frame has been punctured, the transmission frame including a WLAN signaling field. The transmitter may identify information associated with the WLAN signaling field corresponding to the punctured first channel. The transmitter may transmit the information associated with the WLAN signaling field in a second channel of the plurality of channels. The transmitter may transmit the indication that the first channel has been punctured in the second channel or in a second WLAN signaling field of the transmission frame.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 22, 2017
    Inventors: Arjun Bharadwaj, Bin Tian, Lochan Verma, Sameer Vermani
  • Publication number: 20170181102
    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmission. The apparatus is configured to transmit a frame to a wireless device. The frame may include information associated with the determined target receiver power level for uplink transmission and a transmit power level at which the frame is to be transmitted.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 22, 2017
    Inventors: Arjun BHARADWAJ, Bin TIAN
  • Publication number: 20170181130
    Abstract: Methods, apparatuses, and computer readable media for resource allocation signaling in a high efficiency wireless local area network (WLAN) are disclosed. A receiver may receive, at a first station, a transmission frame that includes a WLAN signaling field decodable by a plurality of stations. The receiver may identify, in a station-specific portion of the WLAN signaling field, an order for a plurality of station-specific information blocks associated with the plurality of stations. The receiver may determine a number of spatial streams allocated to the first station based at least in part on the identified order for the plurality of station-specific information blocks.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 22, 2017
    Inventors: Arjun Bharadwaj, Bin Tian, Lochan Verma, Sameer Vermani
  • Publication number: 20170181129
    Abstract: Methods, apparatuses, and computer readable media for resource allocation signaling in a high efficiency wireless local area network (WLAN) are disclosed. A transmitter may identify a first indicator identifying a number of multi-user multiple-input/multiple-output (MU-MIMO) stations associated with a first resource unit (RU) in a first content channel of a transmission frame. The transmitter may generate a first common portion of a WLAN signaling field in the first content channel. The first common portion may include the first indicator. The transmitter may identify a second indicator identifying an absence of MU-MIMO stations associated with a second RU in a second content channel of the transmission frame. The transmitter may generate a second common portion of the WLAN signaling field in the second content channel. The second common portion may include the second indicator. The transmitter may transmit the transmission frame including the WLAN signaling field.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 22, 2017
    Inventors: Arjun Bharadwaj, Bin Tian, Lochan Verma, Sameer Vermani
  • 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
  • Publication number: 20170126447
    Abstract: Methods and apparatuses for providing wireless messages can include, for example, an apparatus configured to provide wireless communication. The apparatus includes a memory that stores instructions and a processor coupled with the memory and configured to execute the instructions to select a dual sub-carrier modulation (DCM) mode or a non-DCM mode. The processor is further configured to select one or more interleaver parameters based on the selection of the DCM mode or the non-DCM mode. The processor is further configured to select a first set of interleaver parameters when the DCM mode is selected and a second set of interleaver parameters, different than the first set of interleaver parameters, when the non-DCM mode is selected. The processor is further configured to apply the one or more interleaver parameters to interleave data of a message. The processor is further configured to provide the message for transmission to a receiving device.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Inventors: Lin Yang, Bin Tian, Jialing Li Chen, Arjun Bharadwaj
  • Publication number: 20170127404
    Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method for wireless communication is provided. The method includes transmitting a clear to transmit (CTX) message to two or more stations, the CTX indicating an uplink transmission opportunity, the CTX message further comprising a request that the two or more stations concurrently transmit uplink data at a specific time. The method further includes receiving a plurality of uplink data from at least two stations at the specific time.
    Type: Application
    Filed: October 19, 2016
    Publication date: May 4, 2017
    Inventors: Simone Merlin, Alfred Asterjadhi, George Cherian, Bin Tian, Arjun Bharadwaj, Gwendolyn Denise Barriac, Yan Zhou
  • 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: 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
  • Publication number: 20170070961
    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmissions received at the apparatus, to determine uplink power control information based on the determined target receiver power level for UL MU-MIMO transmission or UL OFDMA transmission, and to transmit a frame that includes the determined uplink power control information to a station scheduled by the apparatus for uplink transmission.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 9, 2017
    Inventors: Arjun BHARADWAJ, Rahul TANDRA, Bin TIAN, Youhan KIM, Simone MERLIN, George CHERIAN
  • 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
  • Publication number: 20170064718
    Abstract: Resource allocation signaling in a high efficiency wireless local area network (WLAN) is disclosed. An access point (AP) may generate a resource unit (RU) size indicator in a first WLAN signaling field, the RU size indicator decodable by a set of stations. The AP may also generate a common user field in a second WLAN signaling field, such that a size of the common user field may be based on the RU size indicator of the first WLAN signaling field. The AP may generate a station-specific field in the second WLAN signaling field, such that a position of the a station-specific field corresponds to one or more RUs associated with the a station-specific field. The AP may then transmit a WLAN preamble that includes the first WLAN signaling field followed by the second WLAN signaling field.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 2, 2017
    Inventors: Arjun Bharadwaj, Bin Tian, Sameer Vermani
  • Publication number: 20170054542
    Abstract: Aspects of the present disclosure provide techniques for sounding procedures using frames with some portions that use relatively long symbol durations. Certain aspects of the present disclosure provide a method that may be performed by an access point. The method generally includes generating one or more frames, collectively having one or more training fields allowing one or more stations to calculate channel information and an indication of one or more feedback parameters for the one or more stations to use for generating the channel information; transmitting the one or more frames; and receiving channel information from at least one of the stations calculated, in accordance with the one or more feedback parameters, for a corresponding one or more reporting units based on the one or more training fields, wherein the channel information is received via a report containing a plurality of channel information parameters for each of the one or more reporting units.
    Type: Application
    Filed: August 18, 2016
    Publication date: February 23, 2017
    Inventors: Sameer VERMANI, Bin TIAN, Jialing Li CHEN, Arjun BHARADWAJ, Youhan KIM
  • Publication number: 20170048034
    Abstract: A method of wirelessly communicating includes generating, at a wireless device, a packet. The method includes generating, for transmission to a plurality of receiving devices, a packet comprising a preamble field, the preamble field comprises a signal (SIG) field. The method further includes encoding a content of a first portion of the SIG field for each channel of a frequency bandwidth, the first portion comprising information for all receiving devices. The method further includes encoding a content of a second portion of the SIG field for each channel of the frequency bandwidth, the second portion comprising one or more codeblocks, the one or more codeblocks including information for each receiving device of the plurality of receiving devices.
    Type: Application
    Filed: August 8, 2016
    Publication date: February 16, 2017
    Inventors: Arjun Bharadwaj, Bin Tian, Sameer Vermani
  • Publication number: 20170048823
    Abstract: A device may signal a resource allocation scheme in a high efficiency wireless local area network (WLAN) preamble. In one example, a high efficiency (HE) WLAN signaling field is used to signal a resource allocation pattern to multiple devices. The HE WLAN signaling field includes a common user field that is decodable by the multiple devices and includes a resource allocation field. The resource allocation indicates resource unit distributions to the multiple devices and indicates which resource units in a multi-user PPDU correspond to multi-user MIMO transmissions and which resource units correspond to OFDMA single-user transmissions. The HE WLAN signaling field also includes dedicated user fields that are assigned to certain devices. The order of the dedicated user fields corresponds to the allocated resource units. The HE WLAN signaling field is transmitted with a WLAN preamble to the multiple devices.
    Type: Application
    Filed: August 9, 2016
    Publication date: February 16, 2017
    Inventors: Arjun Bharadwaj, Bin Tian, Sameer Vermani
  • Publication number: 20170012683
    Abstract: Methods and apparatus for single and multi-user signal extensions or padding are provided. In various aspects, a number of symbols required to transmit a plurality of data bits to each of a plurality of wireless communication devices and a fraction of useful bits in a final symbol of each of the plurality of data bits is determined. A signaling extension length may also be determined based at least in part on the fraction of useful bits and a modulation and coding scheme (MCS) of each of the plurality of wireless communication devices. A plurality of data packets for each of the plurality of wireless communication devices are generated, with each data packet comprising the corresponding data bits and the signaling extension after the final symbol of each of the plurality of data packets.
    Type: Application
    Filed: June 27, 2016
    Publication date: January 12, 2017
    Inventors: Arjun Bharadwaj, Bin Tian