公开(公告)号：US20200351861A1

公开(公告)日：2020-11-05

申请号：US16402200

申请日：2019-05-02

Applicant: Charter Communications Operating, LLC

Inventor： Amitav Mukherjee ,  Reza Hedayat

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W72/12

Abstract: Methods and apparatus related to HARQ feedback, e.g. delayed HARQ ACK/NACK, and uplink control information (UCI) multiplexing, in unlicensed spectrum are described. A base station transmits an UCI request to a UE, including: a request for ACK/NACK feedback corresponding to a set of HARQ identified processes, a request for channel state information report, and/or a scheduling request. The UCI request includes information which is used, by the UE, in determining the time and air link resources on which to send the UCI. The HARQ processes are communicated in a first Channel Occupancy Time (COT), while the ACK/NACK feedback is communicated in a later COT.

公开(公告)号：US20210105633A1

公开(公告)日：2021-04-08

申请号：US16837751

申请日：2020-04-01

Applicant: Charter Communications Operating, LLC

Inventor： Maulik Vaidya ,  Reza Hedayat ,  Amitav Mukherjee

IPC: H04W16/14 ,  H04W74/08 ,  H04W72/04 ,  H04W76/27 ,  H04W68/02 ,  H04W72/08

Abstract: Apparatus and methods for operating wireless devices using unlicensed frequency ranges with minimal transmission interruptions. In one embodiment, the apparatus and methods provide a mechanism for redirecting idle or inactive wireless devices to different frequencies in response to interference detection such as by 5 GHz-band radar. In one variant, the present disclosure provides methods and apparatus for allowing user device (UEs) using 5G N R-U spectrum to continue to operate upon radar detection by successfully switching the UEs to one or more frequencies that are free of radar operation. In one variant, a gNB controlling the UEs informs the AMF (access and mobility function) of a radar detection event, and the AMF initiates a paging towards idle UEs in order to allow the gNB to move the UEs to a frequency without radar operations. In another variant, a gNB switches its UEs to a different frequency without relying on the AMF.

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.