公开(公告)号：US20230254903A1

公开(公告)日：2023-08-10

申请号：US18135015

申请日：2023-04-14

Applicant: CHARTER COMMUNICATIONS OPERATING. LLC

Inventor： Amitav Mukherjee ,  Maulik Vaidya ,  Ahmed Reza Hedayat

IPC: H04W74/08 ,  H04L5/00

CPC classification number: H04W74/0833 ,  H04L5/0048

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：US11696322B2

公开(公告)日：2023-07-04

申请号：US17025599

申请日：2020-09-18

Applicant: CHARTER COMMUNICATIONS OPERATING, LLC

Inventor： Maulik Vaidya ,  Ahmad Reza Hedayat ,  Manish Jindal

IPC: H04W72/56 ,  H04W74/08 ,  H04W72/1268 ,  H04W76/27 ,  H04W52/02

CPC classification number: H04W72/56 ,  H04W52/0216 ,  H04W72/1268 ,  H04W74/085 ,  H04W76/27

Abstract: Various embodiments comprise systems, methods, architectures, mechanisms and apparatus providing improved National Security and Emergency Preparedness (NS/EP) Priority Services mechanisms within the context of IEEE 802.11-type networks.

公开(公告)号：US20230199851A1

公开(公告)日：2023-06-22

申请号：US18079353

申请日：2022-12-12

Applicant: Charter Communications Operating, LLC

Inventor： Amitav Mukherjee ,  Maulik Vaidya

IPC: H04W74/08 ,  H04W24/10 ,  H04W16/14 ,  H04W72/0453

CPC classification number: H04W74/0825 ,  H04W16/14 ,  H04W24/10 ,  H04W72/0453

Abstract: Apparatus and methods for multi-carrier or multi-band utilization in an unlicensed wireless network. In one embodiment, the apparatus and methods provide enhanced wireless services which provide enhanced bandwidth capability to 5G NR-U entities such as gNodeB and UE devices across two heterogeneous unlicensed bands having different medium access mechanism and protocols. In one variant, LBT (listen before talk) protocols are used to detect the presence or absence of users within the respective bands of interest. When two or more unoccupied carriers or bands are identified, aggregated operation is used ti enhance the downlink/uplink (DL/UL) transmission bandwidth for the device(s).

公开(公告)号：US11665528B2

公开(公告)日：2023-05-30

申请号：US17175615

申请日：2021-02-13

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Abdulrauf Hafeez ,  Panayiotis Papadimitriou ,  Dumitru Ionescu

IPC: H04W8/24 ,  H04W88/08 ,  H04W36/06 ,  H04L67/145 ,  H04W72/0453

CPC classification number: H04W8/24 ,  H04L67/145 ,  H04W36/06 ,  H04W72/0453 ,  H04W88/08

Abstract: In certain embodiments, a (CBSD) base station for a (CBRS) radio system transmits new information elements in an existing capability exchange message to a spectrum access system (SAS) informing the SAS as to whether the SAS should transmit a channel-change message to the base station either (i) directly (and despite of domain proxy being present in the communication path) or (ii) via a domain proxy. If and when the SAS subsequently receives notification of incumbent activity from an Environmental Sensing Capability system, the SAS transmits either a new channel-change message or includes new information elements in an existing heartbeat message to the base station either (i) directly or (ii) via the domain proxy per the capability exchange message. The SAS can combine multiple channel-change messages for multiple base stations into a single message for transmission to a domain proxy that can communicate with those multiple base stations, thereby reducing communications to and from the SAS and decreasing the time that it takes to change channels without jeopardizing existing traffic.

公开(公告)号：US20230007655A1

公开(公告)日：2023-01-05

申请号：US17898250

申请日：2022-08-29

Applicant: Charter Communications Operating, LLC

Inventor： Hossam Hmimy ,  Umamaheswar Kakinada ,  Maulik Vaidya

IPC: H04W72/04

Abstract: Methods and apparatus for providing quasi-licensed intra-cell spectrum reassignment. In one embodiment, the quasi-licensed spectrum utilizes 3.5 GHz CBRS (Citizens Broadband Radio Service) spectrum, and a “seamless” reassignment of wireless spectrum without disruption or loss of continuity to existing data sessions of the CBSD is provided via a pool of temporary RF carriers which act as substitutes for the currently allocated (granted) carriers. The served user devices (e.g., UEs) are instructed by the CBSD to migrate to a new “final” carrier via the substitutes, either directly or via one or more intermediary hops. In one variant, existing 3GPP signaling mechanisms between the UE and CBSD/eNodeB obviates any changes to extant UEs. Communications between the CBSD and its cognizant SAS/DP include new information objects which direct the CBSD to implement the handover functionality. In a further variant, inter-CBSD sector and frequency handovers are provided for using CBRS-plane and 3GPP signaling.

公开(公告)号：US11412406B2

公开(公告)日：2022-08-09

申请号：US16790527

申请日：2020-02-13

Applicant: Charter Communications Operating, LLC

Inventor： Amitav Mukherjee ,  Maulik Vaidya

IPC: H04W28/02 ,  H04W72/12 ,  H04W76/15 ,  H04L1/18

Abstract: Apparatus and methods for improving throughput and reliability in a wireless network. In one embodiment, the apparatus and methods provide mechanisms for wireless user device buffer management that mitigate buffer overflow within the device due to overscheduling, such as from different networks with which the device is connected simultaneously. In one variant, a 3GPP-based signaling architecture from wireless device to the multiple networks is provided to enable user device-controlled management buffer overflow. In another variant, potentially buffer-demanding (e.g., HARQ) process management and prioritization rules are defined to avoid buffer overflow. In other variant, buffer size computation is provided considering the number of networks to which the wireless user device can connect.

公开(公告)号：US11388662B2

公开(公告)日：2022-07-12

申请号：US16791352

申请日：2020-02-14

Applicant: Charter Communications Operating, LLC

Inventor： Curt Wong ,  Maulik Vaidya ,  Yildirim Sahin

IPC: H04W48/18 ,  H04W16/14 ,  H04W28/08 ,  H04L67/00 ,  H04W4/029 ,  H04W48/16

Abstract: Apparatus and methods for prioritizing spectrum and controlling data traffic steering within a wireless network. In one embodiment, the apparatus and methods provide enhanced wireless services which allow network operators to prioritize utilization of spectrum for their subscribers. In one variant, an enhanced 3GPP UE Route Selection Policy (URSP) framework is provided for a UE connected to 5G wireless network, which allows the UE to use one or more prioritized 3GPP spectrum Band Class(es) based on one or more selection criterion or preconditions. In another variant, UE location information is used to dynamically update a data traffic steering mode or other functionality of an enhanced ATSSS (Access Traffic Steering, Switching, and Splitting) rule framework is described for dynamic control of steering or routing functionality, including between 3GPP- and non-3GPP network accesses for the data traffic.

公开(公告)号：US20220191870A1

公开(公告)日：2022-06-16

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

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：US11343795B2

公开(公告)日：2022-05-24

申请号：US16908732

申请日：2020-06-22

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Curt Wong ,  Yildirim Sahin ,  Amitav Mukherjee

IPC: H04W68/02 ,  H04W16/14

Abstract: Methods and apparatus for efficient paging in a communications system using unlicensed spectrum are described. A base station, which uses unlicensed spectrum, receives a paging request message from a network node and performs paging operations attempting to page the UE. The paging attempt may fail due to the base station being unable to transmit a paging signal to the UE because the unlicensed spectrum is currently unavailable or because the UE did not respond to a transmitted page. The base station generates and transmits a paging failure response message including a failure cause code indicating the reason that the paging attempt failed. The network node receives the paging failure response message, recovers the failure cause code, and implements a paging escalation strategy as a function of the recovered failure cause code.

公开(公告)号：US11343022B2

公开(公告)日：2022-05-24

申请号：US16112561

申请日：2018-08-24

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Diwelawatte P J Jayawardene ,  Amitav Mukherjee ,  Pratik Das

IPC: H04L1/18 ,  H04W72/04 ,  H04W72/12 ,  H04L12/801 ,  H04W80/06 ,  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.