US 12,010,727 B2Granted

Enhancing RACH operation in new radio under RF exposure requirements

AssigneeNokia Technologies Oy

InventorsSami-Jukka Hakola, Jorma Kaikkonen, Timo Koskela, Lars Dalsgaard, Juha Karjalainen, Mihai Enescu

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Abstract

A technique of accounting for the difference in required output power reduction or required duty cycle when selecting the RO in addition to the DL RS. Both output power reduction and duty cycle are independently determined by UE itself (i.e., UE needs to be able to determine itself required power backoff and/or duty cycle in order to meet RF exposure requirements). Advantageously, a RACH procedure in which the UE determines both output power reduction and duty cycle independently enables better choices of output power reduction and duty cycle, enhancing data activity and coverage.

Claims16

Dependent claims

An apparatus, comprising:

at least one processor;
and at least one memory including computer program code;
the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
receive uplink resource information from a network describing a plurality of uplink resources;
determine, after receiving the uplink resource information and for at least one of the plurality of uplink resources, restrictions on user equipment resources associated with the at least one of the plurality of uplink resources;
select at least one of the plurality of uplink resources based on the restrictions on user equipment resources associated with the at least one of the plurality of uplink resources;
and
transmit data using the at least one of the plurality of selected uplink resources;
wherein the at least one memory and the computer program code, with the at least one processor, configured to select the at least one of the plurality of uplink resources is further configured to select the uplink resource of the plurality of uplink resources for which an adjusted reference signal received power value corresponding to the uplink resource is greater than a threshold value;
wherein the adjusted reference signal received power values corresponding to the plurality of uplink resources are all less than the threshold value, and
wherein the at least one memory and the computer program code, with the at least one processor, further configured to select the uplink resource of the plurality of uplink resources for which a duty cycle associated with that uplink resources is a maximum.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/439,710Filed 15 Apr 2020 · us provisional application
Priority: 2 May 2019
Published: US 2022/0167422 A126 May 2022
Granted: 11 Jun 2024
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
H04W 72/02
Local resource management: selection of wireless resources by user or terminal
H04B 7/06952
Using beam selection: selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
H04B 17/327
Received signal strength: received signal code power [RSCP]

Family

Application62/842,489Us provisional application · filed 2 May 2019
US 2022/0167422 A1Pre-grant publication · published 26 May 2022
US 12,010,727 B2This patent

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

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