Reducing power consumption on multi-transmitter devices

Patent metadata

Field	Value
Publication number	US-9137750-B2
Application number	US-201314134520-A
Country	US
Kind code	B2
Filing date	Dec 19, 2013
Priority date	May 6, 2009
Publication date	Sep 15, 2015
Grant date	Sep 15, 2015

Abstract

In an example embodiment, there is disclosed an apparatus comprising a first transmitter, a second transmitter, and logic coupled to the first transmitter and the second transmitter. The logic is operable to limit a time period the second transmitter is able to transmit while the first transmitter is transmitting.

First claim

The invention claimed is:

1. An apparatus, comprising:
a power supply having a predetermined limit;
a first transceiver operatively coupled with the power supply, the first transceiver comprising a first receiver and a first transmitter;
a second transceiver operatively coupled with the power supply, the second transceiver comprising a second receiver and a second transmitter; and
logic operatively coupled with the first transceiver and the second transceiver;
wherein the logic is operable to receive at least a first signal, the first signal comprising data representative of a transmitting status of the first transmitter;
wherein, in response to the received transmission status, the logic is operable to determine whether the first transmitter is transmitting; and
wherein, in response to a determination that the first transmitter is transmitting, the logic is operable to selectively allow the second transmitter to transmit while the first transmitter is transmitting, where the power consumption of the first transmitter and the second transmitter exceeds the predetermined limit for a limited time based on a characteristic of the power supply.

2. The apparatus set forth in claim 1 , wherein the logic is operable to selectively allow the second transmitter to transmit while the first transmitter is transmitting by selectively limiting a time period the second transmitter is able to transmit while the first transmitter is transmitting.

3. The apparatus set forth in claim 1 , wherein the logic is operable to selectively allow the second transmitter to transmit while the first transmitter is transmitting by selectively limiting the second transmitter to transmit one or more data packets based on a size of a data packet to be transmitted.

4. The apparatus set forth in claim 1 ,
wherein the logic is further operable to receive a second signal, the second signal comprising data representative of a transmission availability status of an associated frequency on which the second transmitter is operable to transmit;
wherein, in response to a receiving the transmission availability status of the associated frequency, the logic is operable to determine if the associated frequency is clear for transmission by the second transmitter; and
wherein, in response to a determination as to the availability of the associated frequency for transmission, the logic is operable to selectively allow the second transmitter to transmit while the first transmitter is transmitting.

5. The apparatus set forth in claim 1 , wherein the first signal comprises a logical clear channel assessment signal.

6. The apparatus set forth in claim 5 , wherein, in response to a determination that the first transmitter is transmitting, the logic is operable to selectively limit a time period the second transmitter is able to transmit while the first transmitter is transmitting.

7. The apparatus set forth in claim 4 , wherein the second signal comprises a physical clear channel assessment signal.

8. The apparatus set forth in claim 7 , wherein, in response to a determination that the associated frequency is not clear for transmissions by the second transmitter, the logic is operable to selectively limit the second transmitter to transmit one or more data packets based on a size of a data packet to be transmitted.

9. The apparatus set forth in claim 7 , wherein in response to a determination that the associated frequency is not clear for transmissions by the second transmitter, the logic is operable to selectively limit the second transmitter to transmit one or more control frames.

10. A method comprising:
determining a limit for a power supply coupled with a first transceiver comprising a first transmitter and a first receiver, and a second transceiver comprising a second transmitter and a second receiver;
receiving at least a first signal, the first signal comprising data representative of a transmitting status of the first transmitter;
in response to the received transmission status, determining whether the first transmitter is transmitting; and
in response to a determination that the first transmitter is transmitting, selectively allowing the second transmitter to transmit while the first transmitter is transmitting,
wherein the first transmitter and second transmitter are operatively coupled with a common power supply having a limit,
wherein a combined power consumption of the first transmitter and the second transmitter exceeds the limit for the power supply for a limited time, and
wherein the limited time is based on at least one characteristic of the power supply.

11. The method set forth in claim 10 , wherein selectively allowing the second transmitter to transmit while the first transmitter is transmitting comprises selectively limiting a time period the second transmitter is able to transmit while the first transmitter is transmitting.

12. The apparatus set forth in claim 10 , wherein selectively allowing the second transmitter to transmit while the first transmitter is transmitting comprises selectively limiting the second transmitter to transmit one or more data packets based on a size of a data packet to be transmitted.

13. The method set forth in claim 10 , further comprising:
receiving a second signal, the second signal comprising data representative of a transmission availability status of an associated frequency on which the second transmitter is operable to transmit;
in response to a receiving the transmission availability status of the associated frequency, determining if the associated frequency is clear for transmission by the second transmitter; and
in response to a determination as to the availability of the associated frequency for transmission, selectively allowing the second transmitter to transmit while the first transmitter is transmitting.

14. The method set forth in claim 10 , wherein the first signal comprises a logical clear channel assessment signal.

15. The method set forth in claim 14 , wherein, in response to a determination that the first transmitter is transmitting, selectively limiting a time period the second transmitter is able to transmit while the first transmitter is transmitting.

16. The method set forth in claim 13 , wherein the second signal comprises a physical clear channel assessment signal.

17. The method set forth in claim 16 , wherein, in response to a determination that an associated frequency is not clear for transmissions by the second transmitter, selectively limiting the second transmitter to transmit one or more data packets based on a size of a data packet to be transmitted.

18. The apparatus set forth in claim 16 , wherein in response to a determination that an associated frequency is not clear for transmissions by the second transmitter, selectively limiting the second transmitter to transmit one or more control frames.

19. An apparatus, comprising:
a power supply having a predetermined limit;
a first transceiver operatively coupled with the power supply, the first transceiver comprising a first receiver and a first transmitter;
a second transceiver operatively coupled with the power supply, the second transceiver comprising a second receiver and a second transmitter;
means for receiving at least a first signal, the first signal comprising data representative of a transmitting status of the first transmitter;
in response to the received transmission status, means for determining whether the first transmitter is transmitting; and
in response to a determination that the first transmitter is transmitting,

Assignees

• Cisco Tech Inc

Inventors

• Blosco John
• Mccarthy Stephen Joseph
• Metsker Corey

Classifications

• H04W52/0206 Primary

  in access points, e.g. base stations · CPC title

• H04W52/0258

  controlling an operation mode according to history or models of usage information, e.g. activity schedule or time of day · CPC title

• Y02B60/50

  Cross-Sectional Technologies · mapped topic

• H04W88/08

  Access point devices · CPC title

• Y02D30/70

  in wireless communication networks · CPC title