公开(公告)号：US20200322920A1

公开(公告)日：2020-10-08

申请号：US16908732

申请日：2020-06-22

Applicant: Charter Communications Operating, LLC

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

IPC: H04W68/02 ,  H04W16/14

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.

公开(公告)号：US20200314851A1

公开(公告)日：2020-10-01

申请号：US16830062

申请日：2020-03-25

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Reza Hedayat ,  Amitav Mukherjee

IPC: H04W72/04 ,  H04W16/14 ,  H04W76/11 ,  H04L1/00

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.

公开(公告)号：US10694495B2

公开(公告)日：2020-06-23

申请号：US16270513

申请日：2019-02-07

Applicant: Charter Communications Operating, LLC

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

IPC: H04W68/02 ,  H04W16/14

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.

公开(公告)号：US20200100210A1

公开(公告)日：2020-03-26

申请号：US16584763

申请日：2019-09-26

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.

公开(公告)号：US20200059938A1

公开(公告)日：2020-02-20

申请号：US15999266

申请日：2018-08-17

Applicant: CHARTER COMMUNICATIONS OPERATING, LLC

Inventor： Amitav Mukherjee

IPC: H04W72/08 ,  H04W24/08

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.

公开(公告)号：US20200044790A1

公开(公告)日：2020-02-06

申请号：US16112561

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

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.

公开(公告)号：US20200044783A1

公开(公告)日：2020-02-06

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

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.