US 11,122,623 B2 · Controlling AUL transmissions when coexisting with scheduled UEs

Abstract

Systems and methods are disclosed herein for restricting autonomous uplink transmissions by a wireless device in a wireless communication system such that wireless devices performing autonomous uplink transmissions can coexist with wireless devices performing scheduled uplink transmissions in a cell requiring Listen-Before-Talk (LBT). In some embodiments, a method of operation of a wireless device in a wireless communication system comprises receiving, from a radio access node, an indication of which subframes belong to a same channel occupancy within a cell that requires LBT and restricting performance of autonomous uplink transmissions by the wireless device based on the indication of which subframes belong to the same channel occupancy. By restricting autonomous uplink transmissions in this manner, the wireless device can coexist with scheduled wireless devices in the same cell.

Claims20

Dependent claims

A method of operation of a wireless device in a wireless communication system, comprising:

receiving, from a radio access node, an indication of subframes that belong to a scheduled uplink burst within a cell that requires Listen-Before-Talk, LBT;
and
restricting performance of autonomous uplink transmissions by the wireless device based on the indication of subframes that belong to the scheduled uplink burst.

A wireless device for a wireless communication system, comprising:

one or more transceivers;
and
circuitry configured such that the wireless device is operable to:
receive, from a radio access node via the one or more transceivers, an indication of subframes that belong to a scheduled uplink burst within a cell that requires Listen-Before-Talk, LBT;
and
restrict performance of autonomous uplink transmissions by the wireless device based on the indication of subframes that belong to the scheduled uplink burst.

3 more elements

A radio access node for a wireless communication system, the radio access node comprising:

one or more processors;
and
memory storing instructions executable by the one or more processors whereby the radio access node is operable to:
send, to a wireless device, an indication of subframes that belong to a scheduled uplink burst within a cell that requires Listen-Before-Talk, LBT;
and
send, to the wireless device, an indication of whether the wireless device is allowed to perform autonomous uplink transmissions during any of the subframes that belong to the scheduled uplink burst or during a subset of the subframes that belong to the scheduled uplink burst.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/099,829Filed 22 Aug 2018 · us provisional application

Priority

22 Aug 2017

Published

US 2021/0227581 A122 Jul 2021

Granted

14 Sep 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04W 74/0816
Using carrier sensing, e.g. carrier sense multiple access [CSMA]: with collision avoidance
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04W 16/14
Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures: spectrum sharing…
H04W 72/0446
Based on the type of the allocated resource: resources in time domain, e.g. slots or frames

Controlling AUL transmissions when coexisting with scheduled UEs

Life of this patent

Controlling AUL transmissions when coexisting with scheduled UEs

Life of this patent

Abstract

Claims20