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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.
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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
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.
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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
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.
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公开(公告)号：US11088779B2
公开(公告)日：2021-08-10
申请号：US16399899
申请日：2019-04-30
Applicant: Charter Communications Operating, LLC
Inventor： Amitav Mukherjee
Abstract: Methods and apparatus for supporting transmission bursts in unlicensed spectrum are described. Different sets of sub-bands within a downlink bandwidth portion of unlicensed spectrum can be, and sometimes are, occupied during different DL transmission bursts depending on channel availability. A user device is configured with channel usage information, e.g. N bitmaps, each bitmap indicating a different control channel resource allocation that may be used for communication with the UE, and/or reference signal information. The UE determines the occupied sub-bands in a DL transmission burst over the bandwidth portion, and determines control channel resource information based on the determined occupied sub-channels. The UE determines CSI-RS measurement locations based on determined sub-band occupancy. In some embodiments, the UE performs in-sync and out-of-sync evaluations based BLER threshold scaling factors, which are based on sub-band occupancy.
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公开(公告)号：US20210243769A1
公开(公告)日：2021-08-05
申请号：US17239964
申请日：2021-04-26
Applicant: Charter Communications Operating, LLC
Inventor： Amitav Mukherjee
Abstract: According to one configuration, a wireless network includes first wireless stations and second wireless stations. The first wireless stations and second wireless stations support different wireless communication protocols and compete to use a wireless channel. Via monitoring of a control channel generated by a management resource associated with at least the first wireless stations, a given wireless station of the second wireless stations determines availability (unused time slots, frames, etc.) of the wireless channel via monitoring of the wireless channel itself and/or a control channel. In the latter instance, the control channel indicates scheduled usage of the shared wireless channel by at least the first wireless stations. In accordance with the scheduled usage as indicated by the control channel, the given wireless station transmits over the wireless channel during free slots, times, gaps, etc., to communicate with a remote wireless station of the second wireless stations.
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Patent Agency Ranking
公开(公告)号：US20210084616A1
公开(公告)日：2021-03-18
申请号：US17108674
申请日：2020-12-01
Applicant: Charter Communications Operating, LLC
Inventor： Maulik Vaidya , Curt Wong , Yildirim Sahin , Amitav Mukherjee
IPC: H04W68/02
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：US20210076424A1
公开(公告)日：2021-03-11
申请号：US16567509
申请日：2019-09-11
Applicant: Charter Communications Operating, LLC
Inventor： Amitav Mukherjee , Maulik Vaidya
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).
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公开(公告)号：US20210058897A1
公开(公告)日：2021-02-25
申请号：US17007996
申请日：2020-08-31
Applicant: Charter Communications Operating, LLC
Inventor： Maulik Vaidya , Curt Wong , Yildirim Sahin , Amitav Mukherjee
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 unavailibity 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.
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公开(公告)号：US20210037563A1
公开(公告)日：2021-02-04
申请号：US17074603
申请日：2020-10-19
Applicant: Charter Communications Operating, LLC
Inventor： Amitav Mukherjee , Maulik Vaidya
Abstract: A base station schedules a user equipment (UE) for uplink air link resources, e.g., unlicensed spectrum PUSCH resources, corresponding to one or more slots and, in some embodiments, at least one mini-slot. There may be, and sometimes are gaps between two scheduled slots and/or between a scheduled slot and a scheduled mini-slot. Different uplink air link resources corresponding to a schedule slot or mini-slot may, and sometimes do, use different set of frequencies. The base station generates and sends to the UE a single UL grant which grants uplink air link resources corresponding to the composite of resource allocations corresponding to the one or more slots and, in some embodiments, at least one mini-slot. The single UL grant may, and sometimes does, communicates gap information and frequency information.
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公开(公告)号：US10813122B2
公开(公告)日：2020-10-20
申请号：US16276490
申请日：2019-02-14
Applicant: Charter Communications Operating, LLC
Inventor： Amitav Mukherjee , Maulik Vaidya
Abstract: A base station schedules a user equipment (UE) for uplink air link resources, e.g., unlicensed spectrum PUSCH resources, corresponding to one or more slots and, in some embodiments, at least one mini-slot. There may be, and sometimes are gaps between two scheduled slots and/or between a scheduled slot and a scheduled mini-slot. Different uplink air link resources corresponding to a schedule slot or mini-slot may, and sometimes do, use different set of frequencies. The base station generates and sends to the UE a single UL grant which grants uplink air link resources corresponding to the composite of resource allocations corresponding to the one or more slots and, in some embodiments, at least one mini-slot. The single UL grant may, and sometimes does, communicates gap information and frequency information.
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