IP Library Granted Patent US 7,395,032
Granted Patent B2
US 7,395,032 · App. 10/683,348 · Granted Jul 1, 2008

Transmissions from a station with multiple antennae

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Quick Facts
Patent No.
US 7,395,032
App. No.
10/683,348
Granted
Jul 1, 2008
Kind
B2
Abstract

A method for transmitting from a multi-antenna station and a multi-antenna station is provided. The station is provided with a reference antenna and a diversity antenna. During the operation of the method, one of the antennae is selected to be stronger in the event of power unbalance between the diversity and reference antennae. Greater transmission power is assigned for the diversity antenna than the reference antenna when the diversity antenna is only phase adjusted. Greater transmission power is assigned for the reference antenna than the diversity antenna when the reference antenna is amplitude adjusted.

Claims (21)

1. A method, comprising:

transmitting, when a power unbalance between a diversity antenna and a reference antenna occurs, with greater transmission power from the diversity antenna than the reference antenna; and

adjusting the diversity antenna using phase adjustments, wherein

the method is used for transmitting from a multi-antenna station provided with the reference antenna and the diversity antenna.

2. The method of claim 1 , wherein transmitting comprises transmitting from the station comprising a base station of a mobile communication system.

3. The method of claim 1 , further comprising communicating, via the station, in accordance with a closed loop mode one as defined by a third generation partnership project.

4. The method as claimed in claim 1 , further comprising:

transmitting signal sequence via the diversity antennae;

receiving the signal sequence at a receiving station;

receiving a pilot signal sequence at a second station; and

performing antenna verification at the receiving station based on a dedicated channel estimate obtained based on the signal sequence from the diversity antenna.

5. A multi-antenna station for a communication system, the station comprising:

a reference antenna and a diversity antenna; and

a station being configured to transmit, when a power unbalance between the diversity and reference antennae occurs, and when the diversity antenna is phase adjusted, with greater transmission power from the diversity antenna than the reference antenna.

6. A system, comprising:

a transmitting means for transmitting, when a power unbalance between the diversity and reference antennae occurs, with greater transmission power from the diversity antenna than the reference antenna; and

an adjusting means for adjusting the diversity antenna using phase adjustments, wherein

the system is used for transmitting from a multi-antenna station provided with a reference antenna and a diversity antenna.

7. A multi-antenna station for a communication system, the multi-antenna station comprising:

transmitting means for transmitting, when a power unbalance between a diversity and reference antennae occurs, with greater transmission power from a diversity antenna than the reference antenna; and

adjusting means for adjusting the diversity antenna using phase adjustments.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 26, 2015
From: NOKIA CORPORATION
To: NOKIA TECHNOLOGIES OY
Reel/Frame 035495/0932 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 14, 2003
From: KAIPAINEN, YRJO; KUUSELA, MARKKU
To: NOKIA CORPORATION
Reel/Frame 014612/0709 →