US 2019/0297611 A1 · POWER CONTROL AND TRIGGERING OF SOUNDING REFERENCE SIGNAL ON MULTIPLE COMPONENT CARRIERS

Abstract

Various devices, methods, and processes are provided for handling conflicting and/or redundant power control and triggering information for transmitting reference signal(s) such as sounding reference signal (SRS) using carrier aggregation (CA). A user equipment (UE) receives a first downlink control information (DCI) and a second DCI including SRS control information that is in conflict with that of the first DCI, for controlling SRS transmission on a component carrier (CC). The UE determines a resolution to reconcile the conflict between the DCIs. Then the UE can transmit an SRS on the CC in accordance with the resolution.

Claims20

Dependent claims

An apparatus for wireless communication comprising:

a communication interface configured to utilize carrier aggregation;
a memory comprising executable code;
and
a processor operatively coupled to the communication interface and the memory,
wherein the processor is configured by the executable code to:
receive a first downlink control information (DCI) comprising first sounding reference signal (SRS) control information for controlling SRS transmission on at least one component carrier (CC) of a plurality of component carriers (CCs);
determine a sequence of SRS transmissions based on the SRS control information in an order according to a component carrier order specified in the first DCI or a radio resource control (RRC) configuration;
and
transmit one or more respective SRSs on the at least one CC in the order according to the determined sequence of SRS transmissions.

6 more elements

A computer-readable storage medium comprising code for causing a wireless communication device using carrier aggregation to:

receive a first downlink control information (DCI) comprising first sounding reference signal (SRS) control information for controlling SRS transmission on at least one component carrier (CC) of a plurality of component carriers (CCs);
determine a sequence of SRS transmissions based on the SRS control information in an order according to a component carrier order specified in the first DCI or a radio resource control (RRC) configuration;
and
transmit one or more respective SRSs on the at least one CC in the order according to the determined sequence of SRS transmissions.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

16/439,594Filed 12 Jun 2019

Priority

4 Nov 2016

Published

26 Sep 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04L 5/0003
Arrangements for dividing the transmission path: two-dimensional division
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 5/005
Allocation of pilot signals, i.e. of signals known to the receiver: of common pilots, i.e. pilots destined for multiple users or terminals

Family

Application62/417,997Us provisional application · filed 4 Nov 2016

Application15/673,085Continuation · filed 9 Aug 2017

Application16/439,594Continuation

US 10,362,571 B2Related patent

US 10,721,726 B2Related patent

US 2018/0132210 A1Published application

US 2019/0297611 A1This patent

From the US filing history. Foreign family members aren’t listed.

Power control and triggering of sounding reference signal on multiple component carriers

Life of this patent

Power control and triggering of sounding reference signal on multiple component carriers

Life of this patent

Abstract

Claims20