公开(公告)号：US20240381171A1

公开(公告)日：2024-11-14

申请号：US18196607

申请日：2023-05-12

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Paul L. Russell, JR. ,  Yildirim Sahin

IPC: H04W28/02 ,  H04W72/51

Abstract: In various embodiments an explicit congestion feedback capabilities indication, e.g., information indicating a UE's support or lack of support for low latency, low loss and scalable throughput services (L4S), is communicated in a message sent from a UE to device in a network core. In some embodiments the communicated UE capability information provides information about the capability of the UE sending the message to support the use of feedback (e.g., congestion feedback) for scalable throughput services (e.g., (L4S services) or other explicit congestion notification (ECN) services which use congestion feedback for encoding and/or data rate control). In some embodiments the message or messages communicating the UE capability information include a PDU Session Establishment Request message, a PDU Session Modification Request message, and/or a Registration Request message.

公开(公告)号：US20250106907A1

公开(公告)日：2025-03-27

申请号：US18377744

申请日：2023-10-06

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Paul L. Russell, JR. ,  Imtiyaz Shaikh ,  Yildirim Sahin ,  Umamaheswar Achari Kakinada

IPC: H04W76/10 ,  H04W12/06 ,  H04W60/04 ,  H04W80/06

Abstract: Methods and apparatus for using a QUIC connection established between a user equipment (UE) and a Non-3GPP InterWorking Function (N3IWF) to support untrusted non-3GPP access which facilitates Access Traffic Steering, Switching, and Splitting (ATSSS) are described. An exemplary N3IWF, implemented in accordance with features of the present invention, implements MASQUE over QUIC. In some embodiments, the Multiplexed Application Substrate over QUIC Encryption (MASQUE) over QUIC implementation as the transport for NAS. In some embodiments, QUIC connection IDs are used to delineate control plane (CP) traffic and user plane traffic being communicated over the established QUIC connection. In other embodiments, a new 3GPP Payload type header is used to delineate between control plane (CP) traffic and user plane traffic communicated over the established QUIC connection.

公开(公告)号：US20250008367A1

公开(公告)日：2025-01-02

申请号：US18235773

申请日：2023-08-18

Applicant: Charter Communications Operating, LLC

Inventor： Yildirim Sahin ,  Paul L. Russell, JR. ,  Maulik Vaidya

IPC: H04W28/02

Abstract: Data packet congestion marking is supported in devices which may form part of a communications path. The devices which can perform marking can, and in some embodiments do, include non-gNB devices and non-anchor point UPFs, e.g., devices other than gNBs and PSA UPFs such as intermediate UPFs, N3IWFs, TNGFs, and W-AGFs, in addition to gNBs and anchor UPFs. Intermediate UPFs corresponding to a communications session will set the congestion indicator value in a data packet's IP header, of a data packet passing through the UPF, to indicate congestion, if it is not already set to indicate congestion when congestion is detected at the intermediate UPF. A session management function in some embodiments controls which devices perform congestion marking and enables/disables congestion marking, e.g., on a per communications session basis while the session is ongoing and/or at various times during a session establishment or device registration process.

公开(公告)号：US20250106803A1

公开(公告)日：2025-03-27

申请号：US18377755

申请日：2023-10-06

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Paul L. Russell, JR. ,  Imtiyaz Shaikh ,  Yildirim Sahin ,  Umamaheswar Achari Kakinada

IPC: H04W60/04 ,  H04L5/00 ,  H04W28/02

Abstract: Methods and apparatus for using a QUIC connection established between a user equipment (UE) and a Trusted Non-3GPP Gateway Function (TNGF) to support trusted non-3GPP access which facilitates Access Traffic Steering, Switching, and Splitting (ATSSS) are described. An exemplary TGNF, implements Multiplexed Application Substrate over QUIC Encryption (MASQUE) over QUIC. In some embodiments, QUIC connection IDs are used to delineate control plane (CP) traffic and user plane traffic being communicated over the established QUIC connection. In other embodiments, a new 3GPP Payload type header is used to delineate between control plane (CP) traffic and user plane traffic communicated over the established QUIC connection.

公开(公告)号：US20240388989A1

公开(公告)日：2024-11-21

申请号：US18199907

申请日：2023-05-19

Applicant: Charter Communications Operating, LLC

Inventor： Yildirim Sahin ,  Paul L. Russell, JR. ,  Maulik Vaidya

IPC: H04W40/02 ,  H04L45/30

Abstract: A UE is supplied with one or more UE Route Selection Policy (URSP) rules which include an indicator indicating support for a “L4S” Connection Capability. The use of an L4S connection capability indicator allows a UE to obtain L4S support for application traffic data requiring L4S support. The connection capabilities option in the URSP rule or rules allows a UE to select an appropriate route selection for matching L4S connection capability. By allowing a UE to indicate that a packet or packet flow is to be matched to a PDU session which has an L4S connection capability, the UE can trigger establishment of a new PDU session to support a flow of application data packets requiring L4S support or can cause the packet flow to be assigned to an existing PDU session or trigger a modification of an existing PDU Session which supports L4S.

公开(公告)号：US20230354242A1

公开(公告)日：2023-11-02

申请号：US18085548

申请日：2022-12-20

Applicant: Charter Communications Operating, LLC

Inventor： Paul L. Russell, JR. ,  Umamaheswar Kakinada ,  Yildirim Sahin

IPC: H04W60/04 ,  H04W8/22 ,  H04W76/10

CPC classification number: H04W60/04 ,  H04W8/22 ,  H04W76/10

Abstract: Methods and apparatus for supporting efficient switching of data paths corresponding to a communications session between different non-3GPP access networks, e.g., networks including WiFi access points, using network core functionality are described. A novel registration process in which UE and AMF capability information is exchanged at an early stage in the registration process is described. An initial registration request message from a UE, via a 3GPP or N3GPP access network, includes an indicator as to whether or not the UE supports path switching for MA PDU sessions between N3GPP access paths. This allows, for a UE which supports the path switching, a AMF to be selected and assigned to the UE, which also supports the path switching, thus matching capabilities and eliminating the need for interrupting communications to change AMFs at a later point.