公开(公告)号：US11178575B2

公开(公告)日：2021-11-16

申请号：US16745814

申请日：2020-01-17

Applicant: Apple Inc.

Inventor： Abhijeet Bhorkar ,  Laurent Cariou ,  Hwan Joon Kwon

IPC: H04W28/18 ,  H04W74/08 ,  H04W16/14

Abstract: When performing a contention protocol, such as Listen-Before-Talk (LBT), an Long Term Evolution (LTE)-Licensed Assisted Access (LAA) node dynamically adapts the ED threshold used by the LTE-LAA node depending on whether other transmission nodes are detected at the frequency components that are to be used by the LTE-LAA node. In one implementation, the ED threshold value may initially be set to a conservative value, and when other transmissions nodes are not detected, the ED threshold value may be set to a more aggressive value. In another implementation, the ED threshold value may initially be set to a more aggressive value, and only when another transmission node is detected, the ED threshold value may be set to a more conservative value. In yet another possible implementation, the ED threshold value and the transmit power may be proportionally modified, for a particular UE, based on a parameter associated with the UE.

公开(公告)号：US20200154318A1

公开(公告)日：2020-05-14

申请号：US16745814

申请日：2020-01-17

Applicant: Apple Inc.

Inventor： Abhijeet Bhorkar ,  Laurent Cariou ,  Hwan Joon Kwon

IPC: H04W28/18 ,  H04W74/08

Abstract: When performing a contention protocol, such as Listen-Before-Talk (LBT), an Long Term Evolution (LTE)-Licensed Assisted Access (LAA) node dynamically adapts the ED threshold used by the LTE-LAA node depending on whether other transmission nodes are detected at the frequency components that are to be used by the LTE-LAA node. In one implementation, the ED threshold value may initially be set to a conservative value, and when other transmissions nodes are not detected, the ED threshold value may be set to a more aggressive value. In another implementation, the ED threshold value may initially be set to a more aggressive value, and only when another transmission node is detected, the ED threshold value may be set to a more conservative value. In yet another possible implementation, the ED threshold value and the transmit power may be proportionally modified, for a particular UE, based on a parameter associated with the UE.