Transmitter method for multiple antenna systems, transmitter apparatus and network node thereof
First Claim
1. A transmitter method for operating a transmitter apparatus for multiple antenna systems and for serving mobile stations in a radio cell comprising:
- operating at least one antenna array in a first operation mode by transmitting first transmit signals from a first number of antenna elements with a first transmit power; and
operating said at least one antenna array in at least one second operation mode by transmitting at least second transmit signals from at least one second number of antenna elements smaller than said first number of antenna elements with at least one second transmit power larger than said first transmit power;
wherein each of said first number of antenna elements is connected to a respective dedicated and separate transmitter subunit and said at least one second number of antenna elements is connected to an additional respective dedicated and separate transmitter subunit;
and further comprising switching between said first operation mode and said at least one second operation mode by selecting a first power amplifier of said transmitter subunit connected to said first number of antenna elements and optimized for an efficient operation with said first operation mode or selecting at least one second power amplifier of said transmitter subunit connected to said at least one second number of antenna elements and optimized for an efficient operation with said at least one second operation mode.
1 Assignment
0 Petitions
Accused Products
Abstract
The embodiments of the invention relate to a transmitter method for multiple antenna systems. The transmitter method contains the step of operating at least one antenna array in a first operation mode by transmitting first transmit signals (TS1-1, TS1-a, TS1-A) from a first number of antenna elements (AEG1) with a first transmit power and the step of operating the at least one antenna array in at least one second operation mode by transmitting at least second transmit signals (TS2-1, TS2-b, TS2-B, TS3-1, TS3-C, TS3-C) from at least one second number of antenna elements (AEG2, AEG3) smaller than the first number of antenna elements with at least one second transmit power larger than the first transmit power. The embodiments of the invention further relate to a transmitter apparatus for multiple antenna systems. The transmitter apparatus contains means for operating at least one antenna array in a first operation mode by transmitting first transmit signals (TS1-1, TS1-a, TS1-A) from a first number of antenna elements (SUB-G1) with a first transmit power and for operating the at least one antenna array in at least one second operation mode by transmitting second transmit signals (TS2-1, TS2-b, TS2-B, TS3-1, TS3-c, TS3-C) from at least one second number of antenna elements (SUB-G2, SUB-G3) smaller than the first number of antenna elements with at least one second transmit power larger than the first transmit power. The embodiments of the invention even further relate to a network node, which contains the transmitter apparatus.
-
Citations
14 Claims
-
1. A transmitter method for operating a transmitter apparatus for multiple antenna systems and for serving mobile stations in a radio cell comprising:
-
operating at least one antenna array in a first operation mode by transmitting first transmit signals from a first number of antenna elements with a first transmit power; and operating said at least one antenna array in at least one second operation mode by transmitting at least second transmit signals from at least one second number of antenna elements smaller than said first number of antenna elements with at least one second transmit power larger than said first transmit power; wherein each of said first number of antenna elements is connected to a respective dedicated and separate transmitter subunit and said at least one second number of antenna elements is connected to an additional respective dedicated and separate transmitter subunit; and further comprising switching between said first operation mode and said at least one second operation mode by selecting a first power amplifier of said transmitter subunit connected to said first number of antenna elements and optimized for an efficient operation with said first operation mode or selecting at least one second power amplifier of said transmitter subunit connected to said at least one second number of antenna elements and optimized for an efficient operation with said at least one second operation mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A transmitter apparatus for multiple antenna systems and for serving mobile stations in a radio cell comprising means for operating at least one antenna array in a first operation mode by transmitting first transmit signals from a first number of antenna elements with a first transmit power and for operating said at least one antenna array in at least one second operation mode by transmitting at least second transmit signals from at least one second number of antenna elements smaller than said first number of antenna elements with at least one second transmit power larger than said first transmit power;
-
wherein each of said first number of antenna elements is connected to a respective dedicated and separate transmitter subunit and said at least one second number of antenna elements is connected to an additional respective dedicated and separate transmitter subunit; and wherein said transmitter apparatus is further adapted to switch between said first operation mode and said at least one second operation mode by selecting a first power amplifier of said transmitter subunit connected to said first number of antenna elements and optimized for an efficient operation with said first operation mode or selecting at least one second power amplifier of said transmitter subunit connected to said at least one second number of antenna elements and optimized for an efficient operation with said at least one second operation mode. - View Dependent Claims (11, 12, 13, 14)
-
Specification