Back to results
US 11,641,668 B2Granted
Uplink designs for new radio unlicensed spectrum
AssigneeMediatek Inc.
InventorsChiou-Wei Tsai, Chun-Hsuan Kuo
Life of this patent
Estimating the term…
Abstract
Various examples and schemes pertaining to uplink (UL) designs for New Radio (NR) unlicensed spectrum (NR-U) operation in mobile communications are described. An apparatus as a user equipment (UE) receives, from a network node, a scheduling of a plurality of starting slots for an UL transmission by the apparatus. The apparatus performs a listen-before-talk (LBT) procedure and, based on a result of the LBT procedure, the apparatus performs the UL transmission with an initial slot of the UL transmission in one of the plurality of starting slots.
Claims15
A method, comprising:
- receiving, by a processor of an apparatus, from a network node a scheduling of a plurality of starting slots for an uplink (UL) transmission by the apparatus;
- performing, by the processor, a listen-before-talk (LBT) procedure;
- and
- performing, by the processor, the UL transmission with an initial slot of the UL transmission in one of the plurality of starting slots based on a result of the LBT procedure,
- wherein the performing of the UL transmission comprises performing a physical uplink control channel (PUCCH) transmission with orthogonal covering code (OCC) applied to a PUCCH format to support multiplexing, and
- wherein the PUCCH transmission comprises transmission of a plurality of reference signal (RS) resource elements (REs) and a plurality of uplink control information (UCI) REs such that:
- each RS RE of a first subset of the plurality of RS REs is transmitted between two respective UCI REs of the plurality of UCI REs, and
- each UCI RE of a second subset of the plurality of UCI REs is transmitted between one respective RS RE of the plurality of RS REs and another UCI RE of the second subset,
- wherein the performing of the PUCCH transmission with the OCC applied comprises applying OCCs comprising {1 1 1 1 1 1 1 1}, {1 −j −1 j 1− j −1 j}, {1 −1 1 −1 1 −1 1 −1}, and {1 j −1 −j 1 j −1 −j}.
6 more elements
A method, comprising:
- detecting, by a processor of an apparatus, an existence of any preamble transmitted by another apparatus;
- and
- performing, by the processor, an uplink (UL) transmission without first performing a listen-before-talk (LBT) procedure responsive to no preamble being detected,
- wherein the performing of the UL transmission comprises performing a physical uplink control channel (PUCCH) transmission with orthogonal covering code (OCC) applied to a PUCCH format to support multiplexing, and
- wherein the PUCCH transmission comprises transmission of a plurality of reference signal (RS) resource elements (REs) and a plurality of uplink control information (UCI) REs such that:
- each RS RE of a first subset of the plurality of RS REs is transmitted between two respective UCI REs of the plurality of UCI REs, and
- each UCI RE of a second subset of the plurality of UCI REs is transmitted between one respective RS RE of the plurality of RS REs and another UCI RE of the second subset,
- wherein the performing of the PUCCH transmission with the OCC applied comprises applying OCCs comprising {1 1 1 1 1 1 1 1}, {1 −j −1 j 1 −j −1 j}, {1−1 1−1 1−1 1−1}, and {1 j−1 −j 1 j−1 −j}.
5 more elements
Dependencies are inferred from the claim text.