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公开(公告)号：US20210105633A1
公开(公告)日：2021-04-08
申请号：US16837751
申请日：2020-04-01
Applicant: Charter Communications Operating, LLC
Inventor： Maulik Vaidya , Reza Hedayat , Amitav Mukherjee
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 N R-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.
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公开(公告)号：US10856256B2
公开(公告)日：2020-12-01
申请号：US16584763
申请日：2019-09-26
Applicant: Charter Communications Operating, LLC
Inventor： Maulik Vaidya , Curt Wong , Yildirim Sahin , Amitav Mukherjee
Abstract: A base station generates, e.g., based on current UE and current system information, a UE specific paging priority list for an idle or inactive mode UE identifying a set of (small cell base) stations which are to be used to subsequently page the UE. The base station communicates the paging priority list to the UE in a radio resource control release message. In some embodiments, the release message further conveys information indicating a maximum paging monitoring duration and/or a maximum number of paging cells to be monitored. The UE receives the release message and transitions into idle or inactive mode. The UE uses the communicated information to perform efficient paging, identifying which small cells are potential sources of a paging signal, and determine how long to monitor for a paging signal.
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公开(公告)号：US10819473B2
公开(公告)日：2020-10-27
申请号：US16112596
申请日：2018-08-24
Applicant: Charter Communications Operating, LLC
Inventor： Maulik Vaidya , Diwelawatte PJ Jayawardene , Amitav Mukherjee , Pratik Das
IPC: H04L1/18 , H04W72/04 , H04W72/12 , H04L12/801 , H04W80/06
Abstract: A first communications device including a transmitter, such as a base station or UE, identifies a first packet flow for which end to end packet retransmission is supported. The first communications device assigns said first packet flow to a Hybrid Automatic Repeat Request (HARQ) process which does not require generation of acknowledgements (ACKs) or negative acknowledgements (NAKs) from a device receiving data corresponding to said first packet flow; and transmits data corresponding to said first packet flow to a second communications device. In some embodiments, the HARQ process to which the first packet flow is assigned is a dedicated HARQ suppression process. In some embodiments, the HARQ process to which the first packet flow is assigned is a HARQ process which has been temporarily designated as a HARQ suppression process. HARQ suppression is applied for the first packet flow at a radio link layer and/or MAC layer.
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公开(公告)号：US20250159686A1
公开(公告)日：2025-05-15
申请号：US19019445
申请日：2025-01-13
Applicant: Charter Communications Operating, LLC
Inventor： Ahmad Reza Hedayat , Maulik Vaidya
IPC: H04W72/20 , H04W72/51 , H04W72/541
Abstract: Methods and/or apparatus for reducing or avoiding (IDC) in-device coexistence problems in devices which support multiple communications protocols, e.g., WiFi and LTE, are described. In various embodiments a WiFi AP can request or require devices, e.g., STAs to report IDC information pertinent to the individual device. This is done by sending one or more trigger frames, e.g., as part of a multicast or unicast operation. Alternatively, devices can voluntarily report IDC information. The AP, e.g., WiFi AP, takes the IDC information it receives, e.g., from multiple devices, e.g., STAs, into account when scheduling UL resources to be used by the wireless devices. By taking into consideration the IDC information provided by STAs, IDC conflicts can be avoid even though a WiFi AP is scheduling resources for WiFi communication in devices which are also using resources for another communications standard, e.g,, LTE, over which the AP does not have control.
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公开(公告)号：US20250063449A1
公开(公告)日：2025-02-20
申请号：US18244156
申请日：2023-09-08
Applicant: Charter Communications Operating, LLC
Inventor： Umamaheswar Achari Kakinada , Imtiaz Shaikh , Maulik Vaidya , Yildirim Sahin , Paul L. Russell, Jr.
Abstract: Methods and apparatus for supporting EAP re-authentication for devices, e.g., UEs, connecting to APs such as WiFi APs, which are not 3GPP base stations such as gNBs are described. In accordance with the invention an ER service which supports EAP re-authentication is incorporated into an NSWOF which is coupled to multiple different APs. Once authenticated through the NSWOF via an EAP authorization process the ER service in the NSWOF stores UE re-authorization information and uses the information to re-authenticate a UE when it attaches to another AP to which the NSWOF is coupled. By supporting EAP re-authentication the need to contact an AUSF as part of a full authentication process is avoided and a UE can rapidly move between APs without having to perform a full EAP authentication involving contacting the AUSF each time the UE moves.
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Patent Agency Ranking
公开(公告)号：US12200814B2
公开(公告)日：2025-01-14
申请号：US17353605
申请日：2021-06-21
Applicant: Charter Communications Operating, LLC
Inventor： Curt Wong , Maulik Vaidya , Yildirim Sahin
Abstract: Apparatus and methods for registration of e.g., mobile devices in one or more wireless networks. In one embodiment, the apparatus and methods provide enhanced wireless services which enable operation of a given mobile device (e.g., a 3GPP-compliant UE) within two or more mobile networks (e.g., PLMNs) of respective different operators. In one implementation, the UE operates in dual-registration mode or DRM to allow different interworking between the two networks, and includes independent registration capability to 5GC and EPC infrastructure simultaneously. Accordingly, the UE is provided umbrella 4G/4.5G coverage over one or more small-cell 5G networks, with respective independent operators of each. Enhanced DRM-UEe capability as described herein advantageously allows for service provision (e.g., voice service) and interworking between the macro and small-cell layers of the system without complicated network configuration requirements between the two operating networks.
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公开(公告)号：US12057872B2
公开(公告)日：2024-08-06
申请号：US17877455
申请日：2022-07-29
Applicant: Charter Communications Operating, LLC
Inventor： Maulik Vaidya , Ahmad Reza Hedayat , Frank Azcuy , Amitav Mukherjee , Marcus Maranhao
IPC: H04B1/10 , H04W72/0453 , H04W88/06
CPC classification number: H04B1/10 , H04W72/0453 , H04B2001/1045 , H04B2001/1054 , H04W88/06
Abstract: A master node (MN) communicating with a UE using resource of a first band of unlicensed spectrum sends an addition request to a selected secondary node, to request resources for supporting the UE in a second band of unlicensed spectrum. The addition request includes minimum frequency separation information and optionally a baseline reference frequency. The minimum frequency separation information communicated in the addition request, indicates a minimum amount of frequency separation to be maintained between the communication resources in the first band of unlicensed spectrum used for communications with the UE and communication resource in the second band of unlicensed spectrum to be used for communications with the UE. The secondary node selects a channel within the second band of unlicensed spectrum to use for communications with the UE, which will satisfy the minimum frequency separation requirement communicated in the addition request and avoid IDC problems for the UE.
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公开(公告)号：US11930484B2
公开(公告)日：2024-03-12
申请号：US16830062
申请日：2020-03-25
Applicant: Charter Communications Operating, LLC
Inventor： Maulik Vaidya , Ahmad Reza Hedayat , Amitav Mukherjee
CPC classification number: H04W72/0473 , H04L1/0061 , H04W16/14 , H04W48/12 , H04W72/23 , H04W76/11
Abstract: Methods and apparatus for managing system information message transmission in a distribution network (e.g., a wireless network such as one compliant with 3GPP 5G NR-U). In one embodiment, transmission of multiple SI (System Information) messages with overlapping SI-windows is enabled but with no soft-combining support. In another embodiment, transmission of multiple SI-messages with overlapping SI-windows is enabled with soft-combining support. In yet another embodiment, aperiodic OSI transmission is enabled. Moreover, the present disclosure provides mechanisms for notifying UE of an SI change.
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公开(公告)号：US20240039565A1
公开(公告)日：2024-02-01
申请号：US17877455
申请日：2022-07-29
Applicant: Charter Communications Operating, LLC
Inventor： Maulik Vaidya , Ahmad Reza Hedayat , Frank Azcuy , Amitav Mukherjee , Marcus Maranhao
CPC classification number: H04B1/10 , H04W72/0453 , H04W88/06
Abstract: A master node (MN) communicating with a UE using resource of a first band of unlicensed spectrum sends an addition request to a selected secondary node, to request resources for supporting the UE in a second band of unlicensed spectrum. The addition request includes minimum frequency separation information and optionally a baseline reference frequency. The minimum frequency separation information communicated in the addition request, indicates a minimum amount of frequency separation to be maintained between the communication resources in the first band of unlicensed spectrum used for communications with the UE and communication resource in the second band of unlicensed spectrum to be used for communications with the UE. The secondary node selects a channel within the second band of unlicensed spectrum to use for communications with the UE, which will satisfy the minimum frequency separation requirement communicated in the addition request and avoid IDC problems for the UE.
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公开(公告)号：US20230319582A1
公开(公告)日：2023-10-05
申请号：US17711530
申请日：2022-04-01
Applicant: CHARTER COMMUNICATIONS OPERATING, LLC
Inventor： Abdulrauf Hafeez , Amitav Mukherjee , Maulik Vaidya
CPC classification number: H04W16/14 , H04W72/1215
Abstract: Various embodiments comprise systems, methods, architectures, mechanisms and apparatus configured to enable wireless stations to use their shared spectrum grants proximate a priority/incumbent user of the shared spectrum by generating a propagation model of the priority/incumbent user, determining a potential interference therewith by each of at least one group of similarly located wireless stations proximate the priority user, determining a modification to a spectrum grant for each wireless station group that would avoid interference with the priority/incumbent user by the respective wireless stations of the group, and updating the spectrum grants of each wireless station in a wireless station group using the determined spectrum grant modification associated with the wireless station group.
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