US 2019/0320453 A1 · TECHNIQUES FOR CHANNEL ESTIMATION

Abstract

Techniques are described herein for performing channel estimation for both uplink and downlink channels. Additional reference signals may be allocated or assigned to various resource elements (REs) of a transmission time interval (TTI). The receiving device (e.g., a base station or a user equipment (UE)) may be configured to use the additional reference signals during channel estimation. The use of additional reference signals may improve the accuracy of the channel estimations. In downlink communications, a base station may allocate one or more channel state information reference signals (CSI-RSs) to a port of a UE. In uplink communications, a UE may transmit several sounding reference signals (SRSs) in a group.

Claims30

Dependent claims

A method for wireless communication, comprising:

allocating a plurality of channel state information reference signal (CSI-RS) resource elements (REs) of a transmission time interval (TTI) to a port of a user equipment (UE);
transmitting, to the UE, an indication of the plurality of CSI-RS REs allocated to the port of the UE;
and
transmitting at least one CSI-RS to the UE during the TTI.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

16/380,734Filed 10 Apr 2019

Priority

12 Apr 2018

Published

17 Oct 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 5/0023
Three-dimensional division: time-frequency-space
H04W 72/1268
Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows: of uplink data flows
H04B 7/0684
Using simultaneous transmission: using different training sequences per antenna
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

Techniques for channel estimation

Life of this patent

Techniques for channel estimation

Life of this patent

Abstract

Claims30