US 10,873,958 B1 · Controlling PRB allocation for dual-connectivity service

Abstract

A method and system for controlling PRB allocation in dual-connectivity service in which a first access node serves a UE on a first carrier concurrently with a second access node serving the UE on a second carrier. In an example implementation, the first and second access nodes interwork with each other to select a pair of (i) a first group of PRBs within the first carrier for uplink transmission from the UE to the first access node and (ii) a second group of PRBs within the second carrier for uplink transmission from the UE to the second access node, with the selecting being based on minimizing a maximum-power-reduction (MPR) that would be applied for concurrent transmission by the UE to the first access node and to the second access node. The access nodes could then accordingly coordinate the UE's concurrent uplink transmissions.

Claims20

Dependent claims

A method for controlling physical-resource-block (PRB) allocation in dual-connectivity service, the method comprising:

serving, by a first access node a user equipment device (UE) on a first carrier in accordance with a first radio access technology (RAT), the first carrier being divided per unit time into first PRBs, wherein the serving is concurrent with a second access node serving the UE on a second carrier in accordance with a second RAT, the second carrier being divided per unit time into second PRBs;
during the serving of the UE by the first access node, selecting by the first access node, from within the first carrier, a group of the first PRBs to allocate for an uplink data transmission by the UE to the first access node, wherein the selecting is based on minimizing a maximum power reduction (MPR) associated with concurrent uplink transmission by the UE on (i) the selected group of the first PRBs and (ii) a group of the second PRBs selected by the second access node for an uplink data transmission by the UE to the second access node;
and
allocating by the first access node the selected group of first PRBs for the uplink data transmission by the UE to the first access node.

1 more element

In a wireless communication system that includes a first access node configured to provide service on a first carrier defining a plurality of first physical resource blocks (PRBs) per unit time and a second access node configured to provide service on a second carrier defining a plurality of second PRBs per unit time, the first access node comprising:

a wireless communication interface including an antenna structure through which the first access node is configured to engage in communication on the first carrier;
a backhaul interface through which the first access node is configured to engage in communication with the second access node;
and
a controller having a processing unit programmed to carry out operations including:
(a) serving a user equipment device (UE) on the first carrier in accordance with a first radio access technology (RAT) concurrently with the UE being served by second access node on the second carrier in accordance with a second RAT,
(b) while serving of the UE on the first carrier, selecting, from within the first carrier, a group of the first PRBs to allocate for an uplink data transmission by the UE to the first access node, wherein the selecting is based on minimizing a maximum power reduction (MPR) associated with concurrent uplink transmission by the UE on (i) the selected group of the first PRBs and (ii) a group of the second PRBs selected by the second access node for an uplink data transmission by the UE to the second access node, and
(c) allocating the selected group of first PRBs for the uplink data transmission by the UE to the first access node.

4 more elements

Dependencies are inferred from the claim text.

Controlling PRB allocation for dual-connectivity service

Life of this patent

Controlling PRB allocation for dual-connectivity service

Life of this patent

Abstract

Claims20