US Patent No. 10,973,019

PHYSICAL LAYER OPERATION FOR MULTI-LAYER OPERATION IN A WIRELESS SYSTEM


Patent No. 10,973,019
Issue Date April 06, 2021
Title Physical Layer Operation For Multi-layer Operation In A Wireless System
Inventorship Paul Marinier, Brossard (CA)
Assignee INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)

Claim of US Patent No. 10,973,019

1. A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:the WTRU utilizing a first physical layer configuration for transmissions associated with a first data path associated with a first group of cells, wherein the first group of cells comprises a primary cell and zero or more secondary cells and utilizes a first radio access technology, and wherein the first physical layer configuration is configured for frequency division duplexing (FDD) of the transmissions exchanged with at least the primary cell of the first group of cells;
the WTRU utilizing a second physical layer configuration for transmissions associated with a second data path associated with a second group of cells, wherein the second group of cells comprises a primary cell and zero or more secondary cells and utilizes a second radio access technology, and wherein the second physical layer configuration is configured for time division duplexing (TDD) of the transmissions exchanged with at least one of the primary cell and the zero or more secondary cells;
the WTRU allocating a first transmission power for a first transmission to be sent to the primary cell of the first group of cells via the first data path and a second transmission power for a second transmission to be sent to the at least one of the primary cell and the zero or more secondary cells via the second data path, wherein:
the first and second transmissions at least partially overlap in time; and
at least a portion of one or more of the first transmission power and the second transmission power is allocated based on (i) whether the first and second transmissions are to be sent on carriers within the same frequency range or on carriers within different frequency ranges, (ii) first and second independent maximum transmit powers for constraining the first and second transmission powers, respectively, and (iii) one or more priority rules related to the first transmission being sent via the first data path and the second transmission being sent via the second data path; and
the WTRU transmitting the first and second transmissions using respective Uu interfaces.