Patents by Inventor Arunabha Ghosh

Arunabha Ghosh 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: 20200367205
    Abstract: Reporting sub-band channel quality is described. For instance, instruction data representative of an instruction to select a provisional channel quality indicator is received by a mobile device from network equipment based on aperiodic channel quality data associated with a sub-band, wherein the instruction data is based on a configured bandwidth part associated with a communication between the network equipment and the mobile device, and wherein a channel quality indicator comprises a full resolution associated with the sub-band. Further, in response to the receiving, the mobile device can select the provisional channel quality indicator based on the instruction data. Furthermore, in response to the selecting, the mobile device can facilitate sending the channel quality indicator to the network equipment in accordance with a full resolution instruction associated with the full resolution.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Inventors: SaiRamesh Nammi, Arunabha Ghosh, Milap Majmundar
  • Publication number: 20200367130
    Abstract: The described technology is generally directed towards adaptively changing which transmission scheme a user equipment is to use based on a Doppler metric (e.g. Doppler frequency) as evaluated against a threshold Doppler value. A network instructs a user equipment to use a Rank-1 precoder cycling transmission scheme if the Doppler metric of user equipment is above a threshold value, or to use a closed loop MIMO transmission scheme if the user equipment has a Doppler metric below the threshold value. The network can instruct the user equipment via a suitable message, or by switching off TPMI and notifying the user equipment thereof.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Patent number: 10841063
    Abstract: Various embodiments disclosed herein provide for indicating a number of codeword symbols in a data traffic transmission. Depending on the number of layers of a data traffic transmission, the transmission can either comprise one codeword symbol or two codeword symbols. If there are two codeword symbols included in a data traffic transmission, the transmitter can indicate the modulation code scheme and other information for each codeword symbol in the first codeword symbol and second codeword symbol locations in the downlink control information data structure. If there is only one codeword symbol, however, the transmitter can provide a modulation code scheme and redundancy version that would not be self-decodable in the second codeword symbol setting location, indicating to the receiver that there is only one codeword symbol in the data traffic transmission.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: November 17, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Publication number: 20200358506
    Abstract: Facilitating generic feedback to enable reciprocity and over the air calibration for advanced networks (e.g., 4G, 5G, and beyond) is provided herein. Operations of a system can comprise selecting information to include in a channel state information feedback report based on a feedback instance. The operations can also comprise generating the channel state information feedback report as a function of channel statistics of channels. Further, the operations can comprise transmitting the channel state information feedback report to a network device of a communications network.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Salam Akoum, Xiaoyi Wang, Arunabha Ghosh, Aditya Chopra
  • Patent number: 10834667
    Abstract: Various embodiments disclosed herein provide for facilitating a discontinuous access to unlicensed spectrum in a new radio access environment. According an embodiment, a system can comprise performing a scanning procedure that determines whether a first subband and a second subband is available for transmission. The system can further facilitate determining whether the first subband and the second subband are adjacent, wherein a first channel formed at the first subband comprising a first guard band and a second channel formed at the second subband comprising a second guard band that is adjacent to the first guard band. The system can further facilitate in response to determining that the first subband and the second subband are adjacent and available for transmission, eliminating the first guard band and the second guard band.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Ralf Bendlin, Aditya Chopra, Arunabha Ghosh, Abdulrauf Hafeez
  • Patent number: 10834781
    Abstract: A closed loop carrier sense multiple access multiuser request to send and clear to send handshaking system is provided to efficiently allocate licensed and unlicensed spectrum for a plurality of mobile devices and across different base stations and mobile network operators. A user equipment device can be connected to a base station device via a first frequency in licensed spectrum, and a second frequency in unlicensed spectrum. The air interface on the first frequency can then be used to coordinate physical and virtual carrier sensing on a second frequency among a plurality of user equipment devices. Moreover, carrier sensing results from a plurality of UEs can be reported a base station device via the first frequency in licensed spectrum. The base station device can then schedule multiple user multiple input, multiple output (MU-MIMO) transmissions to a plurality of UEs on the second frequency in unlicensed spectrum.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Ralf Bendlin, Thomas Novlan, Arunabha Ghosh, Abdulrauf Hafeez
  • Patent number: 10834664
    Abstract: A two-stage enhanced downlink control channel (DCI) is provided. In one example, a method comprises performing processing to attempt to decode a second stage of DCI without blind decoding and based on resource allocation information (RAI), wherein the decoding the first stage of DCI comprises blind decoding and wherein the second stage of DCI and uplink control information is received after the first stage of DCI. The method also comprises based on successfully decoding the second stage of DCI, decoding a physical data shared channel (PDSCH). In various embodiments in which semi-persistent scheduling is provided, decoding information previously received in a prior transmission time interval can be employed in a current or subsequent TTI to conserve bandwidth and power.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Xiaoyi Wang, Sairamesh Nammi, Thomas Novlan, Salam Akoum, Arunabha Ghosh
  • Patent number: 10833751
    Abstract: Precoding coefficients can be compressed based on user equipment signal interference to noise ratio or path loss in front haul cloud radio access network systems. For example, a baseband unit can compute a precoder matrix from an estimated channel associated with an uplink signal. Once the baseband unit computes the channel, it can determine the coefficients for the linear combination of the basis vectors, which are known at the baseband unit and the radio unit as well. The baseband unit can estimate the path loss and the signal interference to noise ratio and determine the basis vectors. The baseband unit can then compress the coefficients and transmit the coefficients to the radio unit. When the radio unit receives the compressed coefficients, the radio unit can reconstruct the precoder matrix and apply to reference signals and data traffic channels.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh, Milap Majmundar, Aditya Chopra
  • Patent number: 10834748
    Abstract: Indication of additional information in 5G systems with a legacy downlink control channel is provided. A method can include receiving, by a device comprising a processor, a scheduling parameter via a message that was transmitted via a downlink control channel by a network device, determining that the scheduling parameter is associated with a non-self-decodable transport block, and, in response to the determining, identifying the scheduling parameter as information distinct from scheduling information for the non-self-decodable transport block.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: November 10, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Patent number: 10834712
    Abstract: Asynchronous multi-point transmission techniques for MIMO networks are provided. An example method comprises receiving, by a device comprising a processor, a first data signal from a first TP device of a wireless communication network, wherein the first data signal comprises first code-word information generated based on a data. The method further comprises receiving, by the device, a second data signal from a second TP device of the wireless communication network, wherein the second data signal comprises second code-word generated based on the data, wherein the first code-word information and the second-code word information are different, and wherein the first TP device and the second TP device are geographically separated by a threshold distance. The device can further process the first data signal and the second data signal to generate a unified data signal representative of the data.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Arunabha Ghosh, Xiaoyi Wang
  • Patent number: 10833823
    Abstract: The described technology is generally directed towards adapting the demodulation reference signal sent in a wireless resource data block based on channel estimation performance. In general, if the demodulation reference signal received was not successfully able to be used to demodulate the resource data block, the demodulation reference signal density can be increased up to a maximum density, which costs resource elements but improves the channel estimation accuracy. If the demodulation reference signal received was able to be used to demodulate the resource data block, the demodulation reference signal density can be decreased down to minimum density, which saves resource elements for data. The network device can use HARQ ACK/NACK data (e.g., a current count or counted over a time period) to determine channel estimation performance, and/or the user equipment can recommend a demodulation reference signal density change.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Xiaoyi Wang, Arunabha Ghosh
  • Patent number: 10833897
    Abstract: The disclosed subject matter relates to employing modulation layer mapping to improve the performance of multiple-input and multiple-output (MIMO) communication systems. In one embodiment, a method comprises determining, by a device comprising a processor, codeword information in association with establishment of a wireless communication link with a network device of a wireless communication network, wherein the device and the network device are configured to communicate via the communication link using a MIMO communication scheme. The determining the codeword information comprises determining a code rate and determining a number of modulation indexes for the code rate based on signal-to-noise ratios respectively associated with channel layers included in the MIMO communication scheme. The method further comprises sending, by the device, the codeword information to the network device via a control channel of the wireless communication link.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh, Xiaoyi Wang
  • Patent number: 10834679
    Abstract: Channel state information reference signal transmission can be used to estimate channel state information. Although resources needed for channel state information reference signals can be small, when multiple bandwidths are deployed within the same orthogonal frequency division multiplexing bandwidth, estimating the channel state information can comprise a channel state information reference signal resource grid for every bandwidth. Therefore, time-frequency resources for channel state information reference signals can be high and occupy a lot of bandwidth, thereby reducing the number of resources for data transmission. Therefore, a non-orthogonal design for channel state information reference signals for a 5G air interface can mitigate bandwidth loss in a 5G network.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Xiaoyi Wang, Arunabha Ghosh
  • Patent number: 10834575
    Abstract: Systems and techniques and machine-readable storage media for initial access configuration for coexistence of multiple wireless communication systems are provided. In one embodiment, a method comprises: determining, by a base station device comprising a processor, a capability of a mobile device configured to operate according to a first communication protocol; and selecting, by the base station device, a numerology of numerologies for transmission of information from the base station device in a subframe of a frame, wherein the frame is associated with communications in accordance with the first communication protocol, wherein the selecting is based on the capability, wherein the numerologies are distinct combinations of frequency subcarrier spacing for synchronization signal blocks and placement locations of the synchronization signal blocks, and wherein the synchronization signal blocks are provided for initial access to a second communication protocol.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thomas Novlan, Ralf Bendlin, Arunabha Ghosh, Xiaoyi Wang
  • Patent number: 10834773
    Abstract: The same or similar physical signals can be used for both user equipment (UE) and an integrate access backhaul (IAB) node. Different configurations of the resources and/or transmission periods of the signals can be used for initial access for access UEs and IAB nodes. In addition, to support topology formation, mobility/multi-connectivity procedures, and backhaul link management, periodic measurements and reports can be configured by a parent IAB node to a child IAB node UE function. This can comprise radio resource management (RRM), radio link monitoring (RLM), and beam management (L1-BM) measurements and reports.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 10, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thomas Novlan, Arunabha Ghosh, Salam Akoum, Xiaoyi Wang
  • Patent number: 10834632
    Abstract: Facilitating energy-efficient wireless communications for advanced networks (e.g., 4G, 5G, and beyond) with low-resolution digital-to-analog converters is provided herein. Operations of a system can comprise determining first values. Respective values of the first values can be digital samples of transmission and reception chains determined based on symbols transformed from bits. The operations can also comprise facilitating a quantization of the first values resulting in second values. Facilitating the quantization can be based on a cost function associated with processing the first values. Further, the operations can comprise outputting the second values as a continuous time signal over antennas of a base station device. The second values can comprise fewer values than the first values.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 10, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Ralf Bendlin, Arunabha Ghosh, Aditya Chopra
  • Patent number: 10834689
    Abstract: A method may include a processing system of a channel sounding receiver having a processor detecting a synchronization signal within a time and frequency resource grid of a base station and measuring a channel property at a first location based upon the synchronization signal that is received at the first location. The method may further include the processing system receiving at a second location, from the base station, the synchronization signal, measuring a channel property at the second location based upon the synchronization signal that is received at the second location, and selecting between the first location and the second location for a deployment of a customer premises equipment based upon the channel property at the first location and the channel property at the second location.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: November 10, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Arunabha Ghosh, Ralf Bendlin, Saeed Ghassemzadeh, Thomas Novlan, Salam Akoum, SaiRamesh Nammi, Xiaoyi Wang
  • Publication number: 20200351928
    Abstract: The described technology is generally directed towards operating a user equipment node as a scheduler user equipment (e.g., which can be a local manager of other nodes in a group). The scheduler user equipment receives a scheduling request for the scheduling of the resources for transmission of data by a transmitter user equipment, and based on the traffic type requested, schedules the transmitter user equipment and receiver user equipment(s) with scheduling data/allocated radio resources. The transmitter user equipment can directly transmit to the receiver user equipment(s) on the allocated radio resources, e.g., without further involvement of the scheduler user equipment/local manager. For cellular data, the scheduler user equipment can schedule the transmitter user equipment to transmit to the scheduler user equipment as a receiver node.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 5, 2020
    Inventors: Xiaoyi Wang, Arunabha Ghosh, Andrew Thornburg, Thomas Novlan, Ralf Bendlin, Milap Majmundar
  • Publication number: 20200351697
    Abstract: A user equipment can send a notification to a network node indicating that the user equipment is entering a battery saving mode of operation. Reduced physical layer procedures can be implemented based on reduced capabilities indicated by the user equipment. Reduced physical layer procedures can also be implemented based on the network node's reconfiguration of parameters to facilitate the activation of the reduced physical layer procedures. The user equipment can also send to the network node recommendations of reduced physical layer procedures.
    Type: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Inventors: Xiaoyi Wang, Arunabha Ghosh, Milap Majmundar, Salam Akoum, SaiRamesh Nammi, Thomas Novlan
  • Patent number: 10826652
    Abstract: The described technology is generally directed towards adaptive interleaving in network communications systems based on one or more conditions with respect to user equipment. When conditions such as the speed of the user equipment indicate that performance can be increased by interleaving the data traffic, data is transmitted to the user equipment using an adaptive interleaver in the coding chain of MIMO systems. The adaptive interleaver is not used when conditions indicate performance is unlikely to improve. Adaptive interleaving may be performed in the frequency domain, in the frequency and time domain, or the frequency time and space domain. Multiple interleavers with different interleaving patterns may be used in the frequency domain and in the frequency and time domain. Adaptive interleaving may be based on one or more various criteria corresponding to the condition data received from the user equipment.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 3, 2020
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh