公开(公告)号：US20240048194A1

公开(公告)日：2024-02-08

申请号：US18380846

申请日：2023-10-17

Applicant: Charter Communications Operating, LLC

Inventor： Amitav Mukherjee

IPC: H04B7/0456 ,  H04B1/00 ,  H04B1/64 ,  H04B1/66

CPC classification number: H04B7/0456 ,  H04B1/0032 ,  H04B1/64 ,  H04B1/662

Abstract: A communication management resource implements an iterative process to derive settings for digital precoder W, analog precoder A, and decode function D with a bandwidth-limited fronthaul link between the application of digital precoder W and the application of analog precoder A. The iterative process includes: for a first instance of digital precoder W and decode function D, optimize an instance of the analog precoder A; and based on the optimized instance of the analog precoder A, optimize a second instance of the digital precoder W and the decode function D. In one implementation, for each iteration of multiple iterations, the communication management resource: i) optimizes an instance of the analog precoder A based on an instance of the digital precoder W and the decode function D, and ii) optimizes an instance of the digital precoder W and the decode function D based on the instance of the analog precoder A.

公开(公告)号：US11895682B2

公开(公告)日：2024-02-06

申请号：US17681835

申请日：2022-02-27

Applicant: Charter Communications Operating, LLC

Inventor： Ahmad Reza Hedayat ,  Maulik Vaidya ,  Amitav Mukherjee

IPC: H04W72/04 ,  H04W72/53 ,  H04W72/0446 ,  H04W72/23 ,  H04W84/12

CPC classification number: H04W72/53 ,  H04W72/0446 ,  H04W72/23 ,  H04W84/12

Abstract: Methods and apparatus for supporting wireless medium sharing in wireless communications systems, e.g., various 802.11 wireless communications systems, are described. A novel shared transmission type of trigger frame is implemented, which allows a wireless station, acting as a host station, to make available transmission resources, which have been acquired by the wireless station, to one or more guest stations. A shared transmission type of trigger frame, generated and transmitted by the host station communicates information identifying the attributes of a corresponding trigger based (TB) frame, information identifying resources of the TB frame to be used by the host station and information identifying one or more set of shared resources which may be used by guest station(s). The trigger based (TB) frame, corresponding to the transmitted shared transmission type trigger frame, is used by the host station and one or more guest stations to transmit data to an access point.

公开(公告)号：US11863999B2

公开(公告)日：2024-01-02

申请号：US17728648

申请日：2022-04-25

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Ahmad Reza Hedayat ,  Amitav Mukherjee

IPC: H04W16/14 ,  H04W74/08 ,  H04W76/27 ,  H04W68/02 ,  H04W72/0453 ,  H04W72/541

CPC classification number: H04W16/14 ,  H04W68/02 ,  H04W72/0453 ,  H04W72/541 ,  H04W74/0808 ,  H04W76/27

Abstract: Apparatus and methods for operating wireless devices using unlicensed frequency ranges with minimal transmission interruptions. In one embodiment, the apparatus and methods provide a mechanism for redirecting idle or inactive wireless devices to different frequencies in response to interference detection such as by 5 GHz-band radar. In one variant, the present disclosure provides methods and apparatus for allowing user device (UEs) using 5G NR-U spectrum to continue to operate upon radar detection by successfully switching the UEs to one or more frequencies that are free of radar operation. In one variant, a gNB controlling the UEs informs the AMF (access and mobility function) of a radar detection event, and the AMF initiates a paging towards idle UEs in order to allow the gNB to move the UEs to a frequency without radar operations. In another variant, a gNB switches its UEs to a different frequency without relying on the AMF.

公开(公告)号：US11843422B2

公开(公告)日：2023-12-12

申请号：US17384973

申请日：2021-07-26

Applicant: Charter Communications Operating, LLC

Inventor： Amitav Mukherjee ,  Dumitru M. Ionescu

IPC: H04B15/00 ,  H04B17/345

CPC classification number: H04B15/005 ,  H04B17/345

Abstract: According to one configuration, a system includes a first wireless station in communication with a second wireless station. A phase noise predictor model such as associated with the first wireless station receives phase noise information. The phase noise information captures an estimate of: i) first phase noise associated with a first wireless station, and ii) second phase noise associated with a second wireless station. Based on the received phase noise information, the predictor produces phase noise adjustment information. The predictor applies the phase noise adjustment information to adjust (compensate) a signal of the first wireless station. Adjustment of the signal results in phase noise adjustment with respect to both the first phase noise associated with the first wireless station and the second phase noise associated with the second wireless station.

公开(公告)号：US11632804B2

公开(公告)日：2023-04-18

申请号：US17116853

申请日：2020-12-09

Applicant: CHARTER COMMUNICATIONS OPERATING, LLC

Inventor： Amitav Mukherjee ,  Maulik Vaidya ,  Ahmad Reza Hedayat

IPC: H04W4/00 ,  H04W74/08 ,  H04L5/00

Abstract: Apparatus and methods for multi-cell broadcast access channel utilization in a wireless network. In one embodiment, the apparatus and methods provide random access channel (RACH) procedure for a 3GPP-compliant user device (e.g., an enhanced UE or UEe) which attempts to connect to multiple cells simultaneously. In one variant, the UEe employs a multi-step (e.g., 4-step) RACH procedure to connect to the multiple cells. This significantly increases the likelihood of RACH procedure success and UEe access. In another variant, a 2-step RACH process is utilized. Variants of the apparatus and methods utilizing unlicensed spectrum and LBT (listen-before-talk) protocols are also described.

公开(公告)号：US11570662B2

公开(公告)日：2023-01-31

申请号：US17139847

申请日：2020-12-31

Applicant: Charter Communications Operating, LLC

Inventor： Amitav Mukherjee ,  Ahmad Reza Hedayat

IPC: H04W28/08 ,  H04W76/11 ,  H04W40/20 ,  H04W88/10

Abstract: The present invention relates to methods and apparatus for providing backhaul wireless services using a plurality of different Radio Access Technologies. An exemplary method embodiment includes the steps of: determining a set of routes for the communication of data from a first wireless base station to a destination wireless base station over wireless backhaul communications links, the first wireless base station being an Integrated Access and Backhaul donor, receiving data of a first flow at the first wireless base station for communication to a first wireless user equipment device attached to the destination wireless base station; and selecting, at the first wireless base station, one or more of the routes of the set of routes from the first wireless base station to the destination wireless base station, the selection being based on multi-Radio Access Technology (multi-RAT) capability of wireless base stations of which a route is comprised.

公开(公告)号：US20220394569A1

公开(公告)日：2022-12-08

申请号：US17681811

申请日：2022-02-27

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Amitav Mukherjee

IPC: H04W36/00 ,  H04W36/08

Abstract: Methods and apparatus used to facilitate preparation of one or more target base stations for possible UE handoffs, e.g., conditional handoffs, which may or may not occur depending on whether or not various handoff conditions are satisfied are described. A handoff message, e.g., a conditional handoff message, including a validity time is generated and sent to each selected target base stations to which a UE may be handed off. The validity time indicates to the target base station a time window, e.g., a time duration for which the handoff target message is to be considered valid. In response to the handoff message, the target base station, receiving the handoff message, allocates resources to the UE and starts a countdown validity timer based on the indicated length of the validity time. When the validity timer expires without handoff to the target base station, the target base station releases the allocated resources.

公开(公告)号：US11483797B2

公开(公告)日：2022-10-25

申请号：US16789290

申请日：2020-02-12

Applicant: Charter Communications Operating, LLC

Inventor： Amitav Mukherjee ,  Maulik V. Vaidya ,  Ahmad Reza Hedayat

IPC: H04W4/00 ,  H04W68/00 ,  H04W36/08 ,  H04W8/26 ,  H04W24/08

Abstract: According to one configuration, a wireless network environment includes a first wireless network and a second wireless network. A mobile communication device in the wireless network environment receives first paging notifications directed to the mobile communication device from a first wireless base station such as operated by a first wireless network service provider. The mobile communication device receives second paging notifications directed to the mobile communication device from a second wireless base station such as operated by a second wireless network service provider. The wireless network environment provides improved paging over conventional techniques.

公开(公告)号：US11477781B2

公开(公告)日：2022-10-18

申请号：US16870685

申请日：2020-05-08

Applicant: Charter Communications Operating, LLC

Inventor： Ahmad Reza Hedayat ,  Amitav Mukherjee ,  Maulik Vaidya

IPC: H04W72/04 ,  H04W84/12 ,  H04W88/08 ,  H04W72/10

Abstract: Methods and apparatus for supporting prioritized transmission opportunity (TXOP) sharing in wireless communications systems, e.g., various 802.11 wireless communications systems, are described. A wireless station may be allocated a transmission opportunity. A shared transmission type of trigger frame is implemented, which allows the wireless station, acting as a host station, to make available transmission resources, which have been acquired by the wireless station, to one or more guest stations. A trigger based (TB) frame, corresponding to the transmitted shared transmission type trigger frame, is used by the host station and one or more guest stations to transmit data to an access point. An access point transmits priority information, e.g., in management frames, to control the use of shared resources in TB frames corresponding to shared transmission type trigger frames. The priority information identifies which particular stations are authorized to be a guest station corresponding to a particular transmission opportunity.

公开(公告)号：US20220286236A1

公开(公告)日：2022-09-08

申请号：US17751660

申请日：2022-05-23

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Diwelawatte PJ Jayawardene ,  Amitav Mukherjee ,  Pratik Das

IPC: H04L1/18 ,  H04W72/04 ,  H04W72/12 ,  H04L47/34

Abstract: A first wireless communications device including a transmitter, such as a base station or UE, identifies a first traffic flow, e.g., a TCP packet flow, for which end to end packet retransmission is supported. The first wireless communications device transmits an explicit indication to a second wireless communications device to skip Hybrid Automatic Repeat Request (HARQ) feedback for data, corresponding to the first traffic flow, said data being transmitted to the second wireless communications device. The explicit indication to skip HARQ feedback for data is, e.g., one of: a HARQ Off Indicator in a Downlink Control Information (DCI) Scheduling message, a Semi-Persistent Scheduling HARQ Off Indicator, or a AUL HARQ Off Indicator. HARQ suppression is applied for the first traffic flow at a radio link layer and/or MAC layer.