Configurability and signaling for half-tone shift

Patent metadata

Field	Value
Publication number	US-11722352-B2
Application number	US-202217717890-A
Country	US
Kind code	B2
Filing date	Apr 11, 2022
Priority date	Jun 16, 2017
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to process a configuration transmission carrying a half-tone shifting indicator. The second circuitry may be operable to select one or more subcarrier frequencies for Uplink (UL) transmission based on the half-tone shifting indicator. The third circuitry may be operable to generate a UL transmission for the one or more subcarrier frequencies. The half-tone shifting indicator may have a first value indicating application of a half-subcarrier offset, and a second value indicating no application of the half-subcarrier offset.

First claim

The invention claimed is:

1. A User Equipment (UE) operable to communicate with a base station on a wireless network, comprising:
one or more processors configured to:
process a configuration transmission carrying a half-tone shifting indicator, wherein the configuration transmission is by a higher layer signaling;
select one or more subcarrier frequencies for Uplink (UL) transmission based on the half-tone shifting indicator; and
generate a UL transmission for the one or more subcarrier frequencies, wherein the half-tone shifting indicator indicates whether to apply a half-subcarrier offset or not; and

an interface for sending the UL transmission to a transmission circuitry and for receiving downlink (DL) transmissions from a receiving circuitry.

2. The UE of claim 1 , wherein the one or more processors are further configured to:
determine a subcarrier spacing and a magnitude of the half-tone shift based on the configuration transmission.

3. The UE of claim 2 , wherein the one or more processors are further configured to:
determine that the subcarrier spacing is 15 kilohertz (kHz) and the magnitude of the half-tone shift is 7.5 kHz.

4. The UE of claim 1 , wherein the one or more processors are further configured to:
determine a magnitude of the half-tone shift based on the one or more subcarrier frequencies.

5. The UE of claim 1 ,
wherein the configuration transmission is a Radio Resource Control (RRC) signaling transmission.

6. The UE of claim 1 ,
wherein the UL transmission comprises at least one of: a Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) waveform or a Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform.

7. The UE of claim 1 , wherein the one or more processors are further configured to:
generate a Radio Frequency (RF) shifting indicator for an RF circuitry based on the half-tone shifting indicator.

8. A method of operating a user equipment (UE), comprising:
processing a configuration transmission carrying a half-tone shifting indicator, wherein the configuration transmission is by a higher layer signaling;
selecting one or more subcarrier frequencies for Uplink (UL) transmission based on the half-tone shifting indicator; and
generating a UL transmission for the one or more subcarrier frequencies, wherein the half-tone shifting indicator indicates whether to apply a half-subcarrier offset or not.

9. The method of claim 8 , further comprising:
determining a subcarrier spacing and a magnitude of the half-tone shift based on the configuration transmission.

10. The method of claim 9 , further comprising:
determining that the subcarrier spacing is 15 kilohertz (kHz) and the magnitude of the half-tone shift is 7.5 kHz.

11. The method of claim 8 , further comprising:
determining a magnitude of the half-tone shift based on the one or more subcarrier frequencies.

12. The method of claim 8 ,
wherein the configuration transmission is a Radio Resource Control (RRC) signaling transmission.

13. The method of claim 8 ,
wherein the UL transmission comprises at least one of: a Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) waveform or a Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform.

14. The method of claim 8 , further comprising:
generating a Radio Frequency (RF) shifting indicator for an RF circuitry based on the half-tone shifting indicator.

15. A base station comprising:
a transceiver configured to enable wireless communication with a user equipment (UE); and
a processor, communicatively coupled to the transceiver, and configured to:
generate a configuration transmission carrying a half-tone shifting indicator, wherein the half-tone shifting indicator corresponds to one or more subcarrier frequencies;
transmit, using the transceiver, the configuration transmission to the UE via a higher layer signaling; and
receive, using the transceiver, an Uplink (UL) transmission through the one or more subcarrier frequencies,
wherein the half-tone shifting indicator indicates whether to apply a half-subcarrier offset or not.

16. The base station of claim 15 , wherein the configuration transmission indicates a subcarrier spacing and a magnitude of the half-tone shift.

17. The base station of claim 16 , wherein the subcarrier spacing is 15 kilohertz (kHz) and the magnitude of the half-tone shift is 7.5 kHz.

18. The base station of claim 15 , wherein the configuration transmission is a Radio Resource Control (RRC) signaling transmission.

19. The base station of claim 15 , wherein the UL transmission comprises at least one of: a Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) waveform or a Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform.

20. The base station of claim 15 , wherein the higher layer signaling includes a Minimum System Information (MSI) transmission or a Remaining MSI (RMSI) transmission, and wherein the MSI transmission or the RMSI transmission indicates whether or not to apply the half-subcarrier offset.

Assignees

• Apple Inc

Inventors

• Jeon Jeongho
• Cho Joonyoung
• Faerber Michael
• Han Seunghee
• Miao Honglei

Classifications

• H04L27/2666 Primary

  Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length · CPC title

• H04L5/0007 Primary

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title

• H04J11/0023 Primary

  Interference mitigation or co-ordination (direct sequence spread spectrum [DSSS] systems H04B1/7097; frequency hopping H04B1/713; allocation criteria for ingress interference avoidance H04L5/0062; frequency allocation criteria for requirements on out-of-channel emissions H04L5/0066; arrangements for removing intersymbol interference or baseband equalisers H04L25/03006; peak power aspects in multicarrier modulation H04L27/2614; power management H04W52/00; traffic scheduling H04W72/54, H04W72/541) · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04W28/26

  Resource reservation · CPC title