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).

  • Patent number: 11362793
    Abstract: The described technology is generally directed towards using demodulation reference signal (DMRS)-based channel state information (CSI) reporting in a wireless communications network with multiple transmit-receive points (TRPs). A user equipment computes joint CSI based on received DMRS data, e.g., received with downlink data traffic from two TRPs, such as co-located or backhaul connected TRPs. The DMRS-based joint CSI is reported to the multiple TRPs for use in scheduling subsequent data traffic, which can increase data throughput, and can reduce the frequency of CSI-RS reporting, increasing overall efficiency. The network can activate and deactivate DMRS-based CSI reporting.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: June 14, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Publication number: 20220182998
    Abstract: A bandwidth efficient way to improve reliability without introducing additional latency is provided for Ultra-Reliable and Low Latency Communications (URLLC) service in 5G NR. In particular, using rateless fountain codes in conjunction with packet duplication for split bearers at the Packet Data Convergence Protocol (PDCP) layer increases the reliability of transmission without the need for retransmissions, and with a lower bandwidth requirement compared to traditional packet duplication.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Inventors: Milap Majmundar, Arunabha Ghosh
  • Patent number: 11356994
    Abstract: An adaptive two-stage downlink control channel structure is utilized for control channel transmission with code block group (CBG) retransmission for 5G and other next generation wireless systems. In an aspect, the first stage of the two-stage downlink control channel structure utilizes a defined format (e.g., having a fixed length) and provides information that is employable to determine the length and/or coding scheme of the second stage. In another aspect, the second stage of the two-stage downlink control channel structure utilizes a variable length/size to indicate the CBGs that are scheduled to be retransmitted (e.g., by employing a variable length bitmap). As an example, the length/size is varied based on a length/size of a transport block, from which the CBGs have been generated.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: June 7, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Patent number: 11356161
    Abstract: Fast calculation of channel state information using demodulation reference signals (DM-RS) is provided herein. The channel state information can be calculated by estimating the signal to noise ratio of a communication link based on the DM-RS, and then estimating the channel quality indicator based on the SINR. The advanced receivers can use list-based detection methods which the estimated SINR can improve the performance thereof. Channel state information is traditionally calculated based on the channel state reference signals (CS-RS). Demodulation reference signals, which are used for channel estimation for a data channel, are transmitted at different times than CS-RS however, and so some portions of the channel state information including layer indicator (LI) and channel quality indicator (CQI) can be calculated based on the demodulation reference signals, allowing a network to adapt more quickly to changing channel conditions, without having to transmit a CS-RS.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: June 7, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Patent number: 11349557
    Abstract: Facilitating operation and support of mobile relays based on an integrated access and backhaul concept for advanced networks (e.g., 4G, 5G, 6G, and beyond) is provided. An embodiment relates to a communication network architecture that can comprise a control plane architecture of a relay node device. The control plane architecture can comprise a star-type architecture. Further, the communication network architecture can comprise a user plane architecture of the relay node device. The user plane architecture can be separated from (or independent of) the control plane architecture. Further, the user plane architecture can comprise a multi-hop architecture. The relay node device can be configured to operate according to a fifth generation wireless network communication protocol, or other advanced communication protocols.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 31, 2022
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Arunabha Ghosh, Milap Majmundar, Thomas Novlan
  • Patent number: 11350485
    Abstract: The described technology is generally directed towards an autonomous topology management scheme in a wireless communications network that establishes a hierarchical structure from a peer-to-peer network without assistance from the wireless network. A group of user equipments negotiate with each other to elect a local manager that acts as a base station by which other user equipments of the group can access network resources. Described is an example voting scheme by which the negotiation process elects the local manager for a term.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: May 31, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Xiaoyi Wang, Thomas Novlan, Andrew Thornburg, Milap Majmundar, Arunabha Ghosh
  • Publication number: 20220166498
    Abstract: The described technology is generally directed towards dynamic resource coordination that supports multi-hop based relaying for integrated access and backhaul (IAB) in New Radio (5G). Described is a technology in which an IAB node and a serving parent node use wireless signaling to dynamically adapt downlink and uplink resources used for access and backhaul links. An IAB node receives scheduling data from a parent node, configures a frame structure comprising mobile termination function subframes and distributed unit component subframes, and communicates data based on the frame structure. The parent node explicitly or implicitly indicates that a portion of the scheduling data is adaptable, e.g., sends a dynamic frame structure coordination message. In response, the IAB node can adapt the frame structure into a modified frame structure and can communicate further data based on the modified frame structure.
    Type: Application
    Filed: February 14, 2022
    Publication date: May 26, 2022
    Inventors: Thomas Novlan, Arunabha Ghosh, Ralf Bendlin, Xiaoyi Wang
  • Patent number: 11343124
    Abstract: An example method may include a processing system of a base station having a processor selecting a blank resource of a time and frequency resource grid of the base station for a transmission of a channel sounding waveform and transmitting the channel sounding waveform via the blank resource. Another example method may include a processing system of a channel sounding receiver receiving at a location, from a base station, a channel sounding waveform via a blank resource of a time and frequency resource grid of the base station, and measuring a channel property at the location based upon the channel sounding waveform.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: May 24, 2022
    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: 20220159556
    Abstract: A system facilitating compact signaling design for reserved resource configuration via a multi-dimensional bitmap is provided for a wireless communication system. A method comprises: determining a multi-dimensional bitmap (MDB) in time and frequency domains, wherein the time domain is represented by an orthogonal frequency division multiplexed (OFDM) symbol and the frequency domain is represented by an OFDM subcarrier. The determining comprises: selecting a group of reserved resource allocations of the MDB in which data information is not to be communicated; assigning a first value for the OFDM multiplexed symbol and the OFDM subcarrier according to a location of elements of the group of reserved resource allocations; and assigning, to other portions of the MDB other than the group of reserved resource allocations, a second value distinct from the first value. The method also comprises facilitating, by the device, transmitting the MDB to a mobile device.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Inventors: Xiaoyi Wang, Arunabha Ghosh, Salam Akoum, Ralf Bendlin
  • Patent number: 11337132
    Abstract: A more efficient network can be achieved using a network-based controller to configure routing tables to route data traffic to and from transmission points. Dynamic partitioning of network resources between the transmission points and a backhaul can be performed in conjunction with a resource scheduler of a network-based controller. The scheduler can relay scheduling metrics or benefit metrics from the network-based controller to the transmission points. Backhaul route optimization can also be used to select relay transmission points based upon conditions being determined to be satisfied.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: May 17, 2022
    Assignees: AT&T INTELLECTUAL PROPERTY I, L.P., AT&T MOBILITY II LLC
    Inventors: Zhi Cui, Milap V. Majmundar, Arunabha Ghosh, Weihua Ye
  • Patent number: 11329865
    Abstract: When configured, a channel state information reference signal (CSI-RS) can be used to identify new beams. If CSI-RS based monitoring fails to identify new beams, and no other reference signals (RS) are used for beam management, the user equipment cannot identify a new beam. However, instead of using a 4-step random access channel (RACH) procedure for beam recovery request transmission, a modified 2-step contention-based RACH procedure can saves overhead and reduce latency associated with the 4-step procedure.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: May 10, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Salam Akoum, Arunabha Ghosh, Xiaoyi Wang
  • Patent number: 11329710
    Abstract: For the case of multi-transmission point transmissions (TRPs), when a transmission on one of the TRPs fail, the network can receive date from a mobile device such that the network knows immediately that the transmission failed on a network node. After received the failed transmission data, the network can facilitate the mobile device switching from a dual transmission usage between two network devices to a single transmission usage between the network device for which the transmission has not been determined to fail.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: May 10, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Salam Akoum, Xiaoyi Wang, Arunabha Ghosh
  • Patent number: 11330401
    Abstract: The technologies described herein are generally directed toward facilitating centrally assisted associations with a local manager by peers in a peer to peer wireless system. According to an embodiment, a system can comprise a processor and a memory that can store executable instructions that, when executed by the processor, facilitate performance of operations. The operations can include identifying a group of local managers of a group of user equipments. The operations can further include receiving, from a network device, a criterion for selecting a local manager from the group of local managers of the group of user equipments, wherein the criterion is based on an association parameter selected by the network device.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: May 10, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Thomas Novlan, Ralf Bendlin, Arunabha Ghosh, Xiaoyi Wang
  • Publication number: 20220140870
    Abstract: Various embodiments disclosed herein provide for an enhanced timing advance scheme to support MU-MIMO in an integrated access and backhaul system. The timing advance scheme disclosed herein aligns the arrival time between backhaul links and access links to enable MU-MIMO gain at the receiver side. In the integrated access and backhaul system, which comprises distributed nodes, the timing advance offset for an access link transmission (a transmission to a node further away in hops from the core network, or to a user equipment device) can be modified by offsetting it with the timing advance of the backhaul link (e.g., from a parent node). This enables the arrival time for transmissions, both access link transmissions from the UE or child node, and backhaul link transmissions from a parent node to arrive at the same time.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Inventors: Xiaoyi Wang, Thomas Novlan, Salam Akoum, Ralf Bendlin, Milap Majmundar, Andrew Thornburg, Arunabha Ghosh
  • Publication number: 20220132498
    Abstract: The disclosed subject matter relates to facilitating uplink communication waveform selection in wireless communication systems, and more particularly Fifth Generation (5G) wireless communication systems. In one or more embodiments, a system is provided comprising a processor and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations. These operations can comprise facilitating establishing a wireless communication link between a first device and a second network device of a wireless communication network, and determining a waveform filtering protocol for application by the first device in association with performance of uplink data transmissions from the first device to the second network device.
    Type: Application
    Filed: January 3, 2022
    Publication date: April 28, 2022
    Inventors: SaiRamesh Nammi, Arunabha Ghosh, Xiaoyi Wang, Milap Majmundar
  • Publication number: 20220132521
    Abstract: Facilitating a time-division multiplexing pattern-based solution for a dual-subscriber identity module with a single radio in advanced networks (e.g., 5G, 6G, and beyond) is provided herein. Operations of a method can comprise obtaining, by a network device comprising a processor, multiple time-division multiplexing patterns applicable to a mobile device. The multiple time-division multiplexing patterns indicate respective repeating patterns of an on state and an off state of a defined identity of the mobile device. The method also can comprise facilitating, by the network device, a transmission, to the mobile device, of information indicative of the multiple time-division multiplexing patterns. In an example, the mobile device can be configured to operate with at least two subscriber identity modules.
    Type: Application
    Filed: January 11, 2022
    Publication date: April 28, 2022
    Inventors: Xiaoyi Wang, Ralf Bendlin, Thomas Novlan, Milap Majmundar, Arunabha Ghosh
  • Publication number: 20220132574
    Abstract: The disclosed subject matter is directed towards a clear channel assessment procedure based on a common preamble, such as for use with 3GPP and IEEE 802.11 technologies, or any other radio technology, including for use in the 6 GHz band. Detection of the common preamble is based on detecting known sequences in signal part, which can be detected without decoding the preamble's payload (channel) part to determine an ongoing transmission's duration. If an ongoing transmission is detected, subsequent energy detection monitoring is performed to determine when transmission ends, which can use a different energy detection threshold from what is used in the initial clear channel assessment's energy detection. The technology facilitates the usage of different sampling rates by different radio technologies that work concurrently in the same unlicensed band, by correlating a received preamble with a stored preamble that accounts for deterministic distortions arising from the different sampling rates.
    Type: Application
    Filed: January 3, 2022
    Publication date: April 28, 2022
    Inventors: Ralf Bendlin, Arunabha Ghosh, Aditya Chopra
  • Patent number: 11316539
    Abstract: Various embodiments provide for encoding and decoding data channel information with polar codes where the frozen bits of the information block can be set to a scrambling identifier based on the device ID, cell ID, or some other unique identifier instead of being set to null. The frozen bits can be identified based on the type of polar code being used, and while the non-frozen bits can be coded with the data link data, the frozen bits can be coded with the scrambling identifier. In an example where there are more frozen bits than bits in the scrambling identifier, the most reliable of the frozen bits can be coded with the scrambling identifier. In another example, the frozen bits can be set to the CRC bits, which can then be masked by the scrambling identifier.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: April 26, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: SaiRamesh Nammi, Arunabha Ghosh
  • Publication number: 20220123846
    Abstract: An example method may include a processing system of a channel sounding receiver having a processor receiving from a base station, at a location, a channel sounding waveform via a plurality of carriers, sampling the channel sounding waveform via the plurality of carriers to generate a plurality of per-carrier time domain sample sets, and processing the plurality of per-carrier time domain sample sets via a plurality of discrete Fourier transform modules to provide a plurality of per-carrier frequency domain sample sets. The method may further include the processing system aligning the plurality of per-carrier frequency domain sample sets in gain and phase to provide a combined frequency domain sample set and measuring a channel property at the location based upon the combined frequency domain sample set.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Inventors: Aditya Chopra, Saeed Ghassemzadeh, Arunabha Ghosh, Ralf Bendlin, Salam Akoum, SaiRamesh Nammi, Thomas Novlan, Xiaoyi Wang
  • Publication number: 20220123809
    Abstract: Facilitating generic reciprocity-based channel state information acquisition frameworks for advanced networks (e.g., 4G, 5G, and beyond) is provided herein. Operations of a system can comprise determining first uplink channel state information for a first mobile device based on first downlink channel state information received from the first mobile device. The first mobile device can be from a group of mobile devices in a wireless communications network. The operations can also comprise training a model on a difference between the first downlink channel state information and the first uplink channel state information to a defined level of confidence. Further, the operations can comprise employing the model to determine, without receipt of second downlink channel state information from a second mobile device of the group of mobile devices, second uplink channel state information for the second mobile device.
    Type: Application
    Filed: January 4, 2022
    Publication date: April 21, 2022
    Inventors: Xiaoyi Wang, Arunabha Ghosh, SaiRamesh Nammi, Salam Akoum