IP Library Granted Patent US 7,620,416
Granted Patent B2
US 7,620,416 · App. 11/540,225 · Granted Nov 17, 2009

Transmission power normalization

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Quick Facts
Patent No.
US 7,620,416
App. No.
11/540,225
Granted
Nov 17, 2009
Kind
B2
Abstract

Embodiments of transmission power normalization are presented herein.

Claims (31)

1. An apparatus comprising:

a transmitter; and

a communication module to normalize transmission power of the transmitter to transmit one or more sounding frames to approximate that of a beam formed frame, wherein the one or more sounding frames are to form a beam-formed connection.

2. An apparatus as described in claim 1 , wherein the transmission power of the sounding frame approximates that of the beam formed frame such that a network connection device having active gain control that receives the sounding frame does not adjust gain from that used upon reception of the beam formed frame.

3. An apparatus as described in claim 1 , wherein the transmission power is normalized based at least in part on a number of transmit antennas to be used by the beam-formed connection.

4. An apparatus as described in claim 1 , wherein the transmission power is normalized based at least in part on a number of spatial streams to be used by the beam-formed connection.

5. An apparatus as described in claim 1 , wherein the transmission power is normalized based at least in part a number of receive antennas to be used by the beam-formed connection.

6. An apparatus as described in claim 1 , wherein the transmission power is normalized through calculation of gain to be applied to transmission power useable by the transmitter to transmit frames at a predetermined rate of non-beam formed frames.

7. An apparatus as described in claim 1 , wherein the communication module is further configured to cause the transmitter to transmit the one or more sounding frames and receive a response to the frame that is usable to form the beam-formed wireless connection, wherein the response describes one or more conditions of a wireless medium encountered by the one or more sounding frames when transmitted.

8. A method comprising:

forming a frame to initiate a beam-formed wireless connection; and

setting transmission power to be used to transmit the frame to approximate transmission power used to transmit a beam-formed frame.

9. A method as described in claim 8 , wherein:

the frame is configured as a sounding frame; and

the setting is based at least in part on a number of transmit antennas, a number of spatial streams, and a number of receive antennas to be used in a beam-formed connection.

10. A method as described in claim 8 , wherein the setting including applying an amount of gain to an amount of transmission power used to transmit frames at a predetermined rate without beam forming.

11. A method as described in claim 8 , further comprising:

transmitting the frame to be received by a network connection device; and

receiving a response to the frame that is usable to form the beam-formed wireless connection.

12. A method as described in claim 11 , wherein the received response describes one or more conditions of a wireless medium encountered by the frame when transmitted.

13. A method as described in claim 11 , further comprising forming the beam-formed wireless connection based at least in part on the received response.

14. One or more computer-readable media comprising executable instruction that, when executed, direct a client to query a table to determine an amount of gain to apply to a sounding frame to form a beam-formed wireless connection.

15. One or more computer-readable media as described in claim 14 , wherein the query is based on a number of transmit antennas, a number of spatial streams and a number of receive antennas to be used by the beam-formed wireless connection.

16. One or more computer-readable media as described in claim 14 , wherein the amount of transmission power is normalized to approximate an amount of transmission power to be used to transmit a beam-formed frame.

17. A system comprising:

a processor;

dynamic random access memory memory configured to maintain one or more application modules that are executable on the processor; and

a network connection device having a module to adjust transmission power of a transmitter such that beam-formed frames used in a beam-formed wireless connection have transmission power that approximates that of a sounding frame used to form the beam-formed connection.

18. A system as described in claim 17 , wherein the beam-formed wireless connection is configured to transmit data related to execution of the one or more application modules.

19. A system as described in claim 17 , wherein the adjustment is to be determined based on table lookup using a number of transmit antennas, number of spatial streams and number of receive antennas.

20. A system as described in claim 19 , wherein the adjustment in the table is based on a simulation.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2020
From: INTEL CORPORATION
To: APPLE INC.
Reel/Frame 052916/0308 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2008
From: ROSS, RONY
To: INTEL CORPORATION
Reel/Frame 020812/0012 →