Uplink transmissions in wireless communications

Patent metadata

Field	Value
Publication number	US-2018014255-A1
Application number	US-201715700981-A
Country	US
Kind code	A1
Filing date	Sep 11, 2017
Priority date	Jan 29, 2014
Publication date	Jan 11, 2018
Grant date	—

Abstract

Methods and devices for offloading and/or aggregation of resources to coordinate uplink transmissions when interacting with different schedulers are disclosed herein. A method in a WTRU includes functionality for coordinating with a different scheduler for each eNB associated with the WTRU's configuration. Disclosed methods include autonomous WTRU grand selection and power scaling, and dynamic prioritization of transmission and power scaling priority.

First claim

1 . A wireless transmit/receive unit (WTRU) comprising:
a processor configured to, on a condition that a first uplink transmission for a first cell group and a second uplink transmission for a second cell group are to occur in a same time interval: multiply a maximum transmit power level by a first proportion for the first cell group to determine a first power level value; allocate a first cell group power level for the first cell group up to the first determined power level value; multiply the maximum transmit power level by a second proportion for the second cell group to determine a second power level value; and allocate a second cell group power level for the second cell group up to a minimum of the second power level value and a remaining power, wherein the remaining power is a difference between the maximum transmit power level and the first cell group power level; and at least one transmitter operatively coupled to the processor and configured to transmit the first uplink transmission at the first cell group power level and to transmit the second uplink transmission at the second cell group power level.

2 . The WTRU of claim 1 , wherein the first cell group comprises a first radio access technology and the second cell group comprises a second radio access technology.

3 . The WTRU of claim 2 , wherein the first radio access technology comprises a long term evolution (LTE) radio access technology.

4 . The WTRU of claim 2 , wherein the second radio access technology comprises a wideband code division multiple access radio access technology.

5 . The WTRU of claim 2 , wherein the second radio access technology comprises a long term evolution (LTE) radio access technology.

6 . The WTRU of claim 2 , wherein the second radio access technology comprises a WiFi radio access technology.

7 . The WTRU of claim 2 , wherein the second radio access technology comprises a high speed packet access radio access technology.

8 . A method for transmitting wireless signals from a wireless transmit/receive unit (WTRU), the method comprising:
on a condition that a first uplink transmission for a first cell group and a second uplink transmission for a second cell group are to occur in a same time interval: multiplying a maximum transmit power level by a first proportion for the first cell group to determine a first power level value; allocating a first cell group power level for the first cell group up to the first determined power level value; multiplying the maximum transmit power level by a second proportion for the second cell group to determine a second power level value; and allocating a second cell group power level for the second cell group up to a minimum of the second power level value and a remaining power, wherein the remaining power is a difference between the maximum transmit power level and the first cell group power level; and transmitting the first uplink transmission at the first cell group power level and transmitting the second uplink transmission at the second cell group power level.

9 . The method of claim 8 , wherein the first cell group comprises a first radio access technology and the second cell group comprises a second radio access technology.

10 . The method of claim 9 , wherein the first radio access technology comprises a long term evolution (LTE) radio access technology.

11 . The method of claim 9 , wherein the second radio access technology comprises a wideband code division multiple access radio access technology.

12 . The method of claim 9 , wherein the second radio access technology comprises a long term evolution (LTE) radio access technology.

13 . The method of claim 9 , wherein the second radio access technology comprises a WiFi radio access technology.

14 . The method of claim 9 , wherein the second radio access technology comprises a high speed packet access radio access technology.

15 . A system for transmitting wireless signals from a wireless transmit/receive unit (WTRU) comprising:
a first cell group and a second cell group; a WTRU configured to communicate with the first cell group and the second cell group, the WTRU comprising a processor and a transmitter; the processor configured to, on a condition that a first uplink transmission for the first cell group and a second uplink transmission for the second cell group are to occur in a same time interval: multiply a maximum transmit power level by a first proportion for the first cell group to determine a first power level value; allocate a first cell group power level for the first cell group up to the first determined power level value; multiply the maximum transmit power level by a second proportion for the second cell group to determine a second power level value; and allocate a second cell group power level for the second cell group up to a minimum of the second power level value and a remaining power, wherein the remaining power is a difference between the maximum transmit power level and the first cell group power level; and at least one transmitter operatively coupled to the processor and configured to transmit the first uplink transmission at the first cell group power level and to transmit the second uplink transmission at the second cell group power level.

16 . The system of claim 15 , wherein the first cell group comprises a first radio access technology and the second cell group comprises a second radio access technology.

17 . The system of claim 16 , wherein the first radio access technology comprises a long term evolution (LTE) radio access technology.

18 . The system of claim 16 , wherein the second radio access technology comprises a wideband code division multiple access radio access technology.

19 . The system of claim 16 , wherein the second radio access technology comprises a long term evolution (LTE) radio access technology.

20 . The system of claim 16 , wherein the second radio access technology comprises a WiFi radio access technology.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Pelletier Ghyslain
• Marinier Paul
• Tooher J Patrick
• Comsa Virgil
• Pani Diana
• Terry Stephen E

Classifications

• H04W52/343 Primary

  taking into account loading or congestion level · CPC title

• H04W52/146 Primary

  Uplink power control · CPC title

• H04W52/365

  Power headroom reporting · CPC title

• H04W72/0473 Primary

  the resource being transmission power · CPC title

• H04W52/367

  Power values between minimum and maximum limits, e.g. dynamic range · CPC title