US 12,763,900 B2 · Methods of compact TRS configuration for NR UE

Abstract

Methods of compact Tracking Reference Signal (TRS) configuration for New Radio (NR) User Equipment (UE) are provided. The Channel State Information Reference Signal (CSI-RS) configuration framework through which the TRS is traditionally configured in connected mode is quite hefty in terms of number of possibilities and Information Elements (IEs) included in its structures. It entails IEs that can be used for configuration of multiple sets (up to 16) of both Zero Power (ZP) and Non-Zero Power (NZP) CSI-RSs. Each of these sets can itself include configuration of up to 64 resources. In order to be able to provide TRS configuration and availability information to the UEs in Radio Resource Control (RRC) Idle/Inactive states, a compact TRS mechanism is disclosed through which the network can configure the UE with specific TRSs.

Claims19

Dependent claims

A method performed by a wireless device for compactly configuring a Tracking Reference Signal (TRS) Information Element (IE) the method comprising:

receiving a compact TRS IE from higher layer signaling of a network, wherein the compact TRS IE is received without a Channel State Information Reference Signal (CSI-RS) configuration, wherein the compact TRS IE omits one or more of the following parameters:
bwp-Id, resourceType, repetition, aperiodicTriggeringOffset, trs-Info, powerControlOffset, frequencyDomainAllocation, nrofPorts, firstOFDMSymbolInTimeDomain2, cdm-Type, or density;
and
configuring at least one TRS in accordance with the compact TRS IE, wherein configuring the at least one TRS in accordance with the compact TRS IE comprises configuring a frequency location of TRS occasions such that the TRS occasions are not restricted by an initial bandwidth part (BWP).

1 more element

Dependencies are inferred from the claim text.

Methods of compact TRS configuration for NR UE

Life of this patent

Methods of compact TRS configuration for NR UE

Life of this patent

Abstract

Claims19