公开(公告)号：US11343797B2

公开(公告)日：2022-05-24

申请号：US17007996

申请日：2020-08-31

Applicant: Charter Communications Operating, LLC

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

IPC: H04W68/02 ,  H04W72/12 ,  H04W72/14

Abstract: Efficient paging in a communications system including macro and small cell base stations is described. A macro cell base station receives, from a network node, a request to page a UE and determines a set of base stations including one or more small cell base stations, which are to attempt to page the UE. The macro cell base station communicates the paging request to the selected one or more small cell base stations. A small cell base station, using unlicensed spectrum, may fail in its paging attempt due to current unavailability of the unlicensed spectrum (LBT fails to clear) resulting in no paging signal transmitted; the reason for failure is communicated from the small cell base station to the macro cell base station via a paging response message. The macro cell base station in turn communicates a paging response message to the network node communicating the reason for failure.

公开(公告)号：US11265772B2

公开(公告)日：2022-03-01

申请号：US16271849

申请日：2019-02-10

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：US20220061091A1

公开(公告)日：2022-02-24

申请号：US17519094

申请日：2021-11-04

Applicant: Charter Communications Operating, LLC

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

IPC: H04W74/08 ,  H04W16/14 ,  H04W48/14 ,  H04W72/04 ,  H04W72/14

Abstract: According to one configuration, a system includes a mobile communication device in communication with a wireless base station. During operation, the mobile communication device detects one or more conditions associated with the wireless network environment. Based on the one or more detected conditions, the mobile communication device selects amongst multiple channel access procedures to communicate with the wireless base station and establish a wireless communication link. The mobile communication device can be configured to include supplemental data in a message to the wireless base station to indicate a reason for the mobile communication device selecting a particular channel access procedure of the multiple channel access procedures.

公开(公告)号：US20220039180A1

公开(公告)日：2022-02-03

申请号：US16945563

申请日：2020-07-31

Applicant: Charter Communications Operating, LLC

Inventor： Amitav Mukherjee ,  Ahmad Reza Hedayat

IPC: H04W76/15 ,  H04W24/08 ,  H04B7/0413

Abstract: Apparatus and methods for operating multiple link premises devices in a wireless network. In one embodiment, premises devices such as a wireless gateway, Access Point (AP) or user devices use Wireless Local Area Network (WLAN) technology for the transmission of data on multiple links operating on different frequencies. The disclosed apparatus and methods provide a solution to share channel statistic or similar data across the different links, such as for link performance improvement via more optimal MIMO operation. In one implementation, large-scale channel statistics are shared via the pre-amble or mid-amble of a frame across multiple links between an AP and a user device to enhance receiver performance. In another embodiment, the channel statistics are shared between multiple AP devices which can coordinate with each other, and/or are made specific to individual client devices, in order to enhance receiver performance.

公开(公告)号：US11219063B2

公开(公告)日：2022-01-04

申请号：US16541855

申请日：2019-08-15

Applicant: Charter Communications Operating, LLC

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

IPC: H04W74/08 ,  H04W16/14 ,  H04W48/14 ,  H04W72/04 ,  H04W72/14

Abstract: According to one configuration, a system includes a mobile communication device in communication with a wireless base station. During operation, the mobile communication device detects one or more conditions associated with the wireless network environment. Based on the one or more detected conditions, the mobile communication device selects amongst multiple channel access procedures to communicate with the wireless base station and establish a wireless communication link. The mobile communication device can be configured to include supplemental data in a message to the wireless base station to indicate a reason for the mobile communication device selecting a particular channel access procedure of the multiple channel access procedures.

公开(公告)号：US20210352663A1

公开(公告)日：2021-11-11

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

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：US11129213B2

公开(公告)日：2021-09-21

申请号：US16601345

申请日：2019-10-14

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Amitav Mukherjee

IPC: H04W76/11 ,  H04W24/10 ,  H04W8/08 ,  H04W48/16 ,  H04W76/27 ,  H04W8/26 ,  H04W84/04

Abstract: Apparatus and methods for physical cell identification within one or more wireless networks. In one embodiment, conflicts in PCI values which may exist within two or more mobile networks (e.g., PLMNs) of respective different operators when unlicensed spectrum is utilized (e.g., according to 3GPP 5G NR-U technology) are resolved. In one implementation, this functionality is provided by specifying one or more mobility-related parameters associated with various UE, such that serving gNBs can determine whether a given UE requires a mobility context, and as such whether it should conduct subsequent RF measurement reporting to report back potential conflicts in PCI it may encounter to the gNB. In one variant, the measurement reporting is configured to comply with 5G NR-U required “listen-before-talk” or LBT protocols; i.e., to measure parameters consistent with the LBT protocols to detect any such PCI-based conflicts.

公开(公告)号：US20210250901A1

公开(公告)日：2021-08-12

申请号：US16789301

申请日：2020-02-12

Applicant: Charter Communications Operating, LLC

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

IPC: H04W68/02 ,  H04W68/00

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：US11088785B2

公开(公告)日：2021-08-10

申请号：US16112613

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 ,  H04L12/801 ,  H04W72/04 ,  H04W72/12 ,  H04W80/06

Abstract: Radio Link Control ACK/NACK is conditionally suppressed. A first wireless communications device including a radio transmitter identifies a first packet flow for which end to end packet retransmission is supported. The first wireless communications device identifies a Packet Data Convergence Protocol (PDCP) packet corresponding to Radio Link Control Acknowledged Mode (RLC AM), said identified packet being included in the identified first packet flow. The first wireless communications device generates an Acknowledged Mode Protocol Data Unit (AM PDU) including a No RLC ACK Required (NRAR) indicator set to indicate RLC ACK is not required, and the radio transmitter in the first wireless communications device transmits the AM PDU, e.g., an AMD PDU, to a second wireless communications device. The second wireless communications device receives the transmitted AM PDU, recovers the NRAR indicator value, and based on the communicated value of the NRAR indicator, determines to suppress RLC ACK/NACK.

公开(公告)号：US10972226B2

公开(公告)日：2021-04-06

申请号：US16112585

申请日：2018-08-24

Applicant: Charter Communications Operating, LLC

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

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

Abstract: A first communications device including a transmitter identifies a packet flow for which end to end packet retransmission is supported. The first wireless communications device transmits an explicit indication in a downlink message to a second wireless communications device, to skip Hybrid Automatic Repeat Request (HARQ) feedback for data, corresponding to the first packet flow, said data being directed to the second wireless communications device. In some embodiments, said explicit indication to skip Hybrid Automatic Repeat Request (HARQ) feedback for data is a predetermined value in a predetermined field of a downlink control information (DCI) scheduling message. In some embodiments, the predetermined field is a PDSCH-to-HARQ feedback timing indicator field. HARQ suppression is applied for the first packet flow at a radio link layer and/or MAC layer, e.g., by the second communications device in response to the predetermined value indicating HARQ suppression being recovered from the predetermined field.