US 11,695,594 B2Granted

Sounding reference signal transmission

AssigneeNEC Corporation

InventorsYukai Gao, Gang Wang

Life of this patent

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Abstract

Embodiments of the present disclosure relate to methods, devices and computer readable mediums for sounding reference signal (SRS) transmission. In example embodiments, a method implemented at a terminal device is provided. According to the method, in response to at least one set of SRS resources being configured for transmitting a SRS to a network device and antenna switching being enabled for the terminal device, the terminal device determines at least one guard period required for transmitting the SRS. Uplink transmission to the network device is expected to be scheduled outside the at least one guard period. In response to the uplink transmission being scheduled outside the at least one guard period, the terminal device transmits the SRS to the network device over the at least one set of SRS resources. In response to the uplink transmission being scheduled within the at least one guard period, the terminal device disables at least a part of the at least one set of SRS resources for transmitting the SRS.

Claims14

Dependent claims

A method implemented at a terminal device, comprising:

in response to at least one set of sounding reference signal (SRS) resources being configured for transmitting a SRS to a network device and antenna switching being enabled for the terminal device, determining at least one guard period required for transmitting the SRS, wherein uplink transmission to the network device is conditioned to be scheduled outside the at least one guard period;
in response to the uplink transmission being scheduled outside the at least one guard period, transmitting the SRS to the network device over the at least one set of SRS resources;
and
in response to the uplink transmission being scheduled within the at least one guard period, disabling at least a part of the at least one set of SRS resources for transmitting the SRS, wherein the disabling at least a part of the at least one set of SRS resources for transmitting the SRS comprises:
determining one or more SRS resources in the at least one set of SRS resources to be disable;
and
disabling the one or more SRS resources for transmitting the SRS,
wherein the determining one or more SRS resources comprises, in response to the uplink transmission and a second SRS resource in the at least one set of SRS resources being associated with a same configuration about a transmit antenna of the terminal device, excluding the second SRS resource from the one or more SRS resources.

5 more elements

A method implemented at a network device, comprising:

in response to at least one set of sounding reference signal (SRS) resources being configured for receiving a SRS from a terminal device and antenna switching being enabled for the terminal device, determining at least one guard period required for receiving the SRS, wherein uplink reception from the terminal device is conditioned to be scheduled outside the at least one guard period;
in response to the uplink reception being scheduled outside the at least one guard period, receiving the SRS from the terminal device over the at least one set of SRS resources;
and
in response to the uplink reception being scheduled within the at least one guard period, disabling at least a part of the at least one set of SRS resources for receiving the SRS,
wherein the disabling at least a part of the at least one set of SRS resources for transmitting the SRS comprises:
determining one or more SRS resources in the at least one set of SRS resources to be disable;
and
disabling the one or more SRS resources for transmitting the SRS,
wherein the determining one or more SRS resources comprises, in response to the uplink transmission and a second SRS resource in the at least one set of SRS resources being associated with a same configuration about a transmit antenna of the terminal device, excluding the second SRS resource from the one or more SRS resources.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/055,389Filed 14 May 2018
Published: US 2021/0194737 A124 Jun 2021
Granted: 4 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver
H04L 25/0226
Using sounding signals: sounding signals per se
H04L 5/0051
Allocation of pilot signals, i.e. of signals known to the receiver: of dedicated pilots, i.e. pilots destined for a single user or terminal
H04L 27/26025
Signal structure: numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking