Radio (nr) short and long duration physical uplink control channel (pucch) design

Abstract

Technology for a user equipment (UE) operable to encode a New Radio (NR) short duration physical uplink control channel (PUCCH) for transmission to a Next Generation NodeB (gNB) is disclosed. The UE can identify uplink control information (UCI) for the UE. The UE can multiplex, using frequency division multiplexing (FDM) at the UE, the UCI and a pseudo-random sequence associated with a demodulation reference signal (DMRS) onto a plurality of subcarriers in one or more physical resource blocks (PRBs) of one or more orthogonal frequency division multiplexing (OFDM) symbols. The UE can encode the UCI and the pseudo-random sequence associated with the DMRS multiplexed onto the plurality of subcarriers of the one or more OFDM symbols for transmission on the NR short duration PUCCH to the gNB.

1 . A user equipment (UE) operable to encode a new radio (NR) physical uplink control channel (PUCCH) for transmission to a base station, the UE comprising:
 one or more processors configured to:
 identify, at the UE, uplink control information (UCI) for the UE; 
 multiplex, at the UE, the UCI and an uplink (UL) data channel using frequency division multiplexing (FDM) when the NR PUCCH is a NR long duration PUCCH; 
 multiplex, at the UE, the UCI and the UL data channel using time division multiplexing (TDM) when the NR PUCCH is a NR short duration PUCCH; and 
 encode, at the UE, the UCI and the UL data channel for transmission to the base station over the NR PUCCH; and 
   a memory interface configured to retrieve the UCI from a memory.   
     
     
         2 . The UE of  claim 1 , wherein the UL data channel comprises a physical uplink shared channel (PUSCH). 
     
     
         3 . The UE of  claim 2 , wherein the one or more processors are further configured to insert a guard period between a NR physical downlink control channel (PDCCH) and the PUSCH. 
     
     
         4 . The UE of  claim 1 , wherein the NR short duration PUCCH comprises one or two orthogonal frequency division multiplexing (OFDM) symbols. 
     
     
         5 . The UE of  claim 1 , wherein the one or more processors are further configured to use, for the NR long duration PUCCH, Discrete Fourier Transform (DFT)-spread-orthogonal frequency division multiplexing (OFDM) (DFT-s-OFDM). 
     
     
         6 . The LE of  claim 5 , wherein the one or more processors are further configured to apply the DFT before an inverse DFT (IDFT) at the UE. 
     
     
         7 . The UE of  claim 5 , wherein the NR long duration PUCCH ranges from four DFT-s-OFDM symbols in length to fourteen DFT-s-OFDM symbols in length. 
     
     
         8 . The UE of  claim 1 , wherein the UCI includes at least one of channel state information (CSI), hybrid automatic repeat request acknowledgements (HARQ-ACKs), scheduling request (SR), and beam information. 
     
     
         9 . A method for user equipment (UE), the method comprising:
 identifying, at the UE, uplink control information (UCI) for the UE to send to a base station;   multiplexing, at the UE, the UCI and an uplink (UL) data channel using frequency division multiplexing (FDM) when a new radio (NR) physical uplink control channel (PUCCH) is a NR long duration PUCCH;   multiplexing, at the UE, the UCI and the UL data channel using time division multiplexing (TDM) when the NR PUCCH is a NR short duration PUCCH; and   encoding, at the UE, the UCI and the UL data channel for transmission to the base station over the NR PUCCH.   
     
     
         10 . The method of  claim 9 , wherein the UL data channel comprises a physical uplink shared channel (PUSCH). 
     
     
         11 . The method of  claim 10 , further comprising inserting a guard period between a NR physical downlink control channel (PDCCH) and the PUSCH. 
     
     
         12 . The method of  claim 9 , wherein the NR short duration PUCCH comprises one or two orthogonal frequency division multiplexing (OFDM) symbols. 
     
     
         13 . The method of  claim 9 , further comprising using, for the NR long duration PUCCH, Discrete Fourier Transform (DFT)-spread-orthogonal frequency division multiplexing (OFDM) (DFF-s-OFDM). 
     
     
         14 . The method of  claim 13 , further comprising applying the DFT before an inverse DFT (IDFT) at the UE. 
     
     
         15 . The method of  claim 13 , wherein the NR long duration PUCCH ranges from four DFT-s-OFDM symbols in length to fourteen DFT-s-OFDM symbols in length. 
     
     
         16 . At least one machine readable storage medium having instructions embodied thereon for encoding a new radio (NR) physical uplink control channel (PUCCH) for transmission from a user equipment (UE) to a base station, the instructions when executed by one or more processors at the UE perform the following:
 identifying, at the UE, uplink control information (UCI) for the UE to send to a base station;   multiplexing, at the UE, the UCI and an uplink (UL) data channel using frequency division multiplexing (FDM) when the NR PUCCH is a NR long duration PUCCH;   multiplexing, at the UE, the UCI and the UL data channel using time division multiplexing (TDM) when the NR PUCCH is a NR short duration PUCCH; and   encoding, at the UE, the UCI and the UL data channel for transmission to the base station over the NR PUCCH.   
     
     
         17 . The at least one machine readable storage medium of  claim 16 , wherein the UL data channel comprises a physical uplink shared channel (PUSCH), and wherein the instructions are further for inserting a guard period between a NR physical downlink control channel (PDCCH) and the PUSCH. 
     
     
         18 . The at least one machine readable storage medium of  claim 16 , wherein the NR short duration PUCCH comprises one or two orthogonal frequency division multiplexing (OFDM) symbols. 
     
     
         19 . The at least one machine readable storage medium of  claim 16 , wherein for the NR long duration PUCCH, the instructions are further for:
 using Discrete Fourier Transform (DFT)-spread-orthogonal frequency division multiplexing (OFDM) (DFT-s-OFDM); and   applying the DFT before an inverse DFT (IDFT) at the UE.   
     
     
         20 . The at least one machine readable storage medium of  claim 19 , wherein the NR long duration PUCCH ranges from four DFT-s-OFDM symbols in length to fourteen DFT-s-OFDM symbols in length.