Multi-cluster uplink transmission in wireless communication network

• US 8,737,330 B2
• Filed: 06/24/2011
• Issued: 05/27/2014
• Est. Priority Date: 06/24/2011
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Inventors: Krishnamurthy, Sandeep H., Frank, Colin D., Nangia, Vijay
• Primary Examiner(s): Nawaz, Asad
• Assistant Examiner(s): CHANG, STEPHANIE L
• Application Number:
  US13/168,572
• Publication Number:
  US 20120327866A1
• Time in Patent Office: 1,068 Days
• Field of Search: 370/329, 370/252, 455/522
• US Class Current: 370/329
• CPC Class Codes: H04W 52/10 Open loop power control
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/30 using constraints in the total amount of available transmission power
• CPC Class Codes: H04W 52/346 distributing total power among users or channels
• CPC Class Codes: H04W 52/42 in systems with time, space, frequency or polarisation diversity

Abstract

A method in a wireless communication device comprises determining transmission powers for at least two clusters, wherein each cluster includes at least one physical resource block (RB), determining a difference in a characteristic of the transmission powers determined for the at least two clusters, and varying a transmit power allocated to at least one cluster if the difference in the characteristic exceeds a power spread threshold, wherein the power allocated to each cluster is a function of pathloss between the wireless communication device and a serving base station.

Claims

1. A method in a wireless communication device, the method comprising:

determining transmission powers for at least two clusters, wherein each cluster includes at least one physical resource block;

determining a difference in a characteristic of the transmission powers determined for the at least two clusters; and

reducing a transmit power allocated to at least one cluster if the difference in the power characteristic exceeds the threshold;

wherein reducing the transmit power allocated to the at least one cluster based on;

2. The method of claim 1 wherein at least one of the at least two clusters is for PUCCH transmission and another of the at least two clusters is for PUSCH transmission.

3. The method of claim 1 wherein the at least two clusters are for PUSCH transmission.