公开(公告)号：US20240388483A1

公开(公告)日：2024-11-21

申请号：US18788101

申请日：2024-07-29

Applicant: Charter Communications Operating, LLC

Inventor： Volkan Sevindik

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/23

Abstract: Methods and apparatus for determining and adjusting subcarrier spacing (SCS) to be used by a base station, e.g., a CBSD, for transmitting downlink data to one or more wireless devices, e.g., UEs, are described. A subcarrier spacing (SCS) level to be used by the base station is determined based on information relating to buffering of downlink data supplied to the base station via a cable, e.g., data accumulation rate (DAR) and/or average data arrival time (ADAT). Measured cable modem (CM) to base station latency is also used in the SCS determination. The amount of time for which a determined SCS level is to be used by the base station is set based on measured latency between a CMTS and the CM.

公开(公告)号：US20240357423A1

公开(公告)日：2024-10-24

申请号：US18760877

申请日：2024-07-01

Applicant: Charter Communications Operating, LLC

Inventor： Volkan Sevindik

IPC: H04W28/06 ,  H04L47/2475 ,  H04W12/03 ,  H04W12/102

CPC classification number: H04W28/06 ,  H04L47/2475 ,  H04W12/03 ,  H04W12/102

Abstract: The present invention relates to methods and apparatus for reducing delay while providing secure communications between nodes. An exemplary method embodiment includes a first node performing the steps of: identifying packets corresponding to a first communications session, the first communications session corresponding to a first application type; segmenting at least a first packet corresponding to the first communications session into at least a first packet portion and a second packet portion, the first packet including a first packet header and a first packet payload, the first packet portion including at least a portion of the first packet header, the second packet portion including at least a portion of the first packet payload; communicating, in encrypted form, the first packet portion from the first node to a security function node; and communicating, in unencrypted form, the second packet portion from the first node to the security function node.

公开(公告)号：US12088529B2

公开(公告)日：2024-09-10

申请号：US17520247

申请日：2021-11-05

Applicant: Charter Communications Operating, LLC

Inventor： Volkan Sevindik

IPC: H04L5/00

CPC classification number: H04L5/0055

Abstract: The presentation invention relates to methods and apparatus for communicating data in communications networks. An exemplary method in accordance with one embodiment includes the steps of: establishing a first Transmission Control Protocol (TCP) session between a wireless base station and a Cable Modem Termination System (CMTS); receiving via the first TCP session at the CMTS a first set of TCP data packets from a cable modem located on a communications path between the wireless base station and the CMTS, the first set of TCP data packets having been sent by the wireless base station; and determining, by the CMTS, whether to send an Acknowledgement (ACK) message or a Negative Acknowledgement (NACK) message to the wireless base station for the entire first set of TCP data packets based on verifying a subset of TCP data packets of the first set of TCP data packets.

公开(公告)号：US12041589B2

公开(公告)日：2024-07-16

申请号：US16995407

申请日：2020-08-17

Applicant: CHARTER COMMUNICATIONS OPERATING, LLC

Inventor： Volkan Sevindik ,  Haider Syed

IPC: H04W72/0453 ,  H04L1/00 ,  H04L27/00 ,  H04W72/542

CPC classification number: H04W72/0453 ,  H04L1/0042 ,  H04L27/0002 ,  H04W72/542

Abstract: Methods and apparatus for enhancing performance of a wireline communication network backhaul for a wireless node. In one embodiment, the node comprises a small-cell or other wireless base station that is backhauled by a DOCSIS system within a managed HFC network, and the methods and apparatus enable enhanced communication between the small cell/base station and the backhaul network so as to support adaptation by the wireline network for frequencies used by the node so as to mitigate interference or other issues. In one implementation, enhanced cable modem (CM), cable modem termination system (CMTS) and node devices coordinate to inform the CMTS of use of potentially interfering frequencies by the base station so that the CMTS can monitor, and reconfigure as necessary, any affected wireline RF channels.

公开(公告)号：US12003816B2

公开(公告)日：2024-06-04

申请号：US17384215

申请日：2021-07-23

Applicant: Charter Communications Operating, LLC

Inventor： Volkan Sevindik

IPC: H04N21/443

CPC classification number: H04N21/4436 ,  Y02D30/50

Abstract: The presentation invention relates to methods and apparatus for managing cable network power consumption. An exemplary method in accordance with one embodiment includes the steps of: receiving a message by a cable modem instructing the cable modem to reduce power consumption; increasing, by the cable modem, a buffer size of at least one of: (i) a cable modem downlink buffer included in the cable modem, or (ii) a cable modem uplink buffer included in the cable modem in response to receiving the message; and switching, by the cable modem, from a first mode of operation to a second mode of operation after performing one or both of: (i) transmitting uplink data to the cable modem termination system, and (ii) transmitting downlink data to a wireless base station, said second mode of operation being a power savings modem of operation.

公开(公告)号：US11997757B2

公开(公告)日：2024-05-28

申请号：US18336206

申请日：2023-06-16

Applicant: Charter Communications Operating, LLC

Inventor： Volkan Sevindik

IPC: H04W8/24 ,  H04W4/08 ,  H04W76/10

CPC classification number: H04W8/24 ,  H04W4/08 ,  H04W76/10

Abstract: In certain embodiments, a (e.g., 5G) wireless network has a (e.g., CBSD) base station and any suitable number of instances of user equipment (UE). For each group of one or more UEs, one of the UEs is designated as a primary UE that stores UE context information for the other (secondary) UEs in the UE group. To connect to a secondary UE, the base station can retrieve the UE context information from the secondary UE's associated primary UE without having to retrieve the secondary UE's context information from the core network, thereby reducing backbone bandwidth usage and delays in connecting the secondary UE, especially when many secondary UE request connections within a short time interval.

公开(公告)号：US11974315B2

公开(公告)日：2024-04-30

申请号：US17730088

申请日：2022-04-26

Applicant: Charter Communications Operating, LLC

Inventor： Volkan Sevindik ,  Perwaiz Akhtar ,  Haider Syed

IPC: H04W72/542 ,  H04W28/02 ,  H04W28/26 ,  H04W48/20

CPC classification number: H04W72/542 ,  H04W28/0236 ,  H04W28/26 ,  H04W48/20

Abstract: Methods and apparatus for managing spectrum in a CBRS network to provide services to user equipment devices located at a customer's premises. In various embodiments, the customer premises has no landline connection. An exemplary method embodiment includes the steps of: receiving, by the CBRS CPE base station, over the air from each of a plurality of Citizens Broadband Radio Service Fixed Wireless Access (CBRS FWA) tower base stations a reference signal; selecting, based on the strength of each of the received reference signals, a primary CBRS FWA tower base station from the plurality of CBRS FWA tower base stations; establishing, by the CBRS CPE base station, a wireless communications link connection with the CBRS FWA tower base station selected as the primary CBRS FWA tower base station; reserving, by the CBRS CPE base station, an amount of spectrum for communicating with one or more auxiliary CBRS FWA tower base stations.

公开(公告)号：US11924678B2

公开(公告)日：2024-03-05

申请号：US17528888

申请日：2021-11-17

Applicant: CHARTER COMMUNICATIONS OPERATING, LLC

Inventor： Volkan Sevindik

IPC: H04W28/02 ,  H04L69/16 ,  H04W28/14

CPC classification number: H04W28/0289 ,  H04L69/16 ,  H04W28/14

Abstract: A method for adapting Transmission Control Protocol (TCP) traffic flows at a provider equipment (PE) node and an apparatus implementing the method are described. The PE node provides backhaul services to endpoint devices communicating with the PE node via respective wireless channels. The method performs: at the PE node, in response to a requirement to cease transmitting on wireless channels supporting current TCP connections with the endpoint devices: (i) transmitting messages to the endpoint devices configured to cause the endpoint devices to continue transmitting currently buffered uplink (UL) data to the PE node via respective UL TCP connections using corresponding last successful TCP congestion window (cwin) sizes; and (ii) transmitting currently buffered downlink (DL) data from the PE node to the endpoint devices via respective DL TCP connections using corresponding last successful TCP cwin sizes.

公开(公告)号：US11825526B2

公开(公告)日：2023-11-21

申请号：US17861172

申请日：2022-07-09

Applicant: Charter Communications Operating, LLC

Inventor： Volkan Sevindik ,  Haider Syed

IPC: H04W74/08 ,  H04W88/08

CPC classification number: H04W74/0875 ,  H04W88/08

Abstract: The present invention relates to methods and apparatus for providing devices access to wireless base stations. An exemplary method embodiment includes the steps of: receiving over the air at a wireless base station a plurality of random access preamble signals from a plurality of devices; and determining, by the wireless base station, the order in which to respond to the received random access preamble signals based on an access priority list. The access priority list being determined based on customer premises equipment devices characteristics, attributes and/or properties.

公开(公告)号：US20230370855A1

公开(公告)日：2023-11-16

申请号：US18197387

申请日：2023-05-15

Applicant: CHARTER COMMUNICATIONS OPERATING, LLC

Inventor： Volkan Sevindik

IPC: H04W16/14 ,  H04W72/0453 ,  H04M15/00 ,  H04W8/24

CPC classification number: H04W16/14 ,  H04W72/0453 ,  H04M15/66 ,  H04W8/24 ,  H04W84/12

Abstract: Various embodiments comprise systems, methods, and apparatus for allocating resources in a 5G network comprising Citizens Broadband Radio Service Device (CBSD) nodes configured for communicating via granted spectrum with customer premises equipment (CPE) supporting wireless access points (WAPs) and the like, wherein an initial small bandwidth part (BWP) is assigned to each CPE, a BWP update process provides to a policy control function a list of devices/capabilities consuming CPE bandwidth so that the PCF may calculate a new bandwidth requirement for the CPE, the new requirement being used by the CPE to generate a CPE UE capability information message for the CBSD node, the CBSD node assigning an appropriately sized BWP for the CPE.