US 2020/0052835 A1 · NEW RADIO (NR) PHYSICAL UPLINK STRUCTURES AND SCHEMES

Abstract

New radio (NR) Uplink (UL) transmissions in an NR physical UL channel can be configured for a user equipment (UE) to communicate with a base station (e.g., gNB). The structures and mechanisms for configured these communications different from long term evolution (LTE) in NR specifications. A UE can generate a UL transmission with symbols on the NR physical channel including demodulation-reference signal (DM-RS) symbols and uplink control information (UCI) symbols. The UL transmissions comprise a DM-RS symbol located at each first symbol with variable lengths. The UE generates the UL transmission as an NR physical UL channel with about a 50% DM-RS overhead with a same or more DM-RS symbols than UCI symbols in a sequential pattern (e.g., an alternating pattern). The UE further maps HARQ-ACK feedback on a PUSCH based a frequency first operation that initiates following the DM-RS symbol located at the first symbol.

Claims26

Dependent claims

1-25. (canceled)

A non-transitory computer-readable storage medium storing executable instructions that, in response to execution, cause one or more processors of a user equipment (UE) to perform operations, comprising:

generating an uplink (UL) transmission comprising symbols on a new radio (NR) physical UL channel based on a sequential pattern of one or more demodulation-reference signal (DM-RS) symbols and one or more uplink control information (UCI) symbols by at least generating a first DM-RS symbol at a first symbol of the symbols;
and
providing the UL transmission for transmission via the NR physical UL channel.

An apparatus configured to be employed in a next generation NodeB (gNB) comprising:

one or more processors configured to:
process an uplink (UL) transmission comprising orthogonal frequency-division multiplexing (OFDM) symbols on a new radio (NR) physical UL channel based on a pattern including one or more demodulation-reference signal (DM-RS) symbols and one or more uplink control information (UCI) symbols, wherein the UL transmission further comprises a DM-RS symbol located at a first OFDM symbol of the OFDM symbols;
a radio frequency (RF) interface, configured to provide, to RF circuitry, data for the UL transmission on the NR physical UL channel.

Dependencies are inferred from the claim text.

Facts

Application

16/478,224Filed 3 May 2018

Priority

4 May 2017

Published

13 Feb 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 1/1861
Arrangements specially adapted for the receiver end: physical mapping arrangements
H04B 7/0632
Feedback content: channel quality parameters, e.g. channel quality indicator [CQI]
H04B 7/0639
Feedback format: using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
H04L 1/0013
By adapting the channel coding: rate matching, e.g. puncturing or repetition of code symbols

New radio (nr) physical uplink structures and schemes

Life of this patent

New radio (nr) physical uplink structures and schemes

Life of this patent

Abstract

Claims26