APPARATUS FOR MANAGING FREQUENCY USE

• US 20090238251A1
• Filed: 05/30/2009
• Published: 09/24/2009
• Est. Priority Date: 01/31/2007
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: ROFOUGARAN, AHMADREZA (REZA)
• Granted Patent: US 8,223,736 B2
• Time in Patent Office: Days
• US Class Current: 375/219
• CPC Class Codes: H04L 12/40013 Details regarding a bus controller
• CPC Class Codes: H04L 12/403 with centralised control, e.g. polling
• CPC Class Codes: H04L 12/413 with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
• CPC Class Codes: H04L 12/417 with deterministic access, e.g. token passing
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A device includes a plurality of integrated circuits (ICs). An IC includes a millimeter wave (MMW) transceiver and a controller. The controller is operably coupled to the MMW transceiver and to: identify one or more other devices that have an intra-device MMW communication coverage area that overlaps with the intra-device MMW communication coverage area of the device. The controller also determines a first frequency range for use by the one or more other devices and the device for controlled radiation pattern intra-device MMW communications. The controller also coordinates allocation of a frequency use pattern to the one or more other devices and to the device for use for non-controlled radiation pattern intra-device MMW communications.

Claims

1. A device comprises:

a plurality of integrated circuits (ICs), wherein an IC of the plurality of ICs includes;

a millimeter wave (MMW) transceiver; and

a controller, wherein the controller is operably coupled to the MMW transceiver and to;

identify one or more other devices that have an intra-device MMW communication coverage area that overlaps with the intra-device MMW communication coverage area of the device;

determine a first frequency range for use by the one or more other devices and the device for controlled radiation pattern intra-device MMW communications; and

coordinate allocation of a frequency use pattern to the one or more other devices and to the device for use for non-controlled radiation pattern intra-device MMW communications.

2. The device of claim 1 further comprises:

the controller generates an inquiry message requesting information regarding intra-device MMW communications;

the MMW transceiver transmits the inquiry message as a MMW outbound signal using an intra-device MMW communication channel;

the MMW transceiver receives a response message indicating another device'"'"'s intra-device MMW communications via the intra-device MMW communication channel; and

the controller interpret the other device'"'"'s intra-device MMW communications to determine whether the intra-device MMW communication coverage area of the other device conflicts with the intra-device MMW communication coverage area of the device.

3. The device of claim 1 further comprises:

the controller generates an inquiry message requesting a response;

the MMW transceiver repeatedly transmits the inquiry message as a MMW outbound signal sequentially using a plurality of intra-device MMW communication channels;

the MMW transceiver receives a response message via at least one of the plurality of intra-device MMW communication channels; and

the controller determines whether a conflict exists for a channel of the plurality of intra-device MMW communication channels based on the response message.

4. The device of claim 1 further comprises:

the MMW transceiver repeatedly adjusts its operating frequency to sequentially receive a message from a plurality of intra-device MMW communication channels to produce a plurality of messages; and

the controller determines whether a conflict exists for a channel of the plurality of intra-device MMW communication channels based on the plurality of messages.

5. The device of claim 1, wherein the controlled radiation pattern intra-device MMW communications comprises at least one of:

MMW communications via a waveguide path;

MMW communications via a dielectric path; and

MMW communications via a beamformed point-to-point path.

6. The device of claim 1, wherein the non-controlled radiation pattern intra-device MMW communications comprises in-air MMW communications.

7. The device of claim 1, wherein the frequency use pattern comprises at least one of:

a separate frequency allocation;

time division multiplexing;

frequency division multiplexing; and

a frequency reuse pattern.

8. A device comprises:

a plurality of integrated circuits (ICs), wherein an IC of the plurality of ICs includes;

a millimeter wave (MMW) transceiver; and

a controller, wherein the controller is operably coupled to the MMW transceiver and to;

transmit, via the MMW transceiver, a message indicating a first frequency range that the device is using for controlled radiation pattern intra-device MMW communications and a second frequency range that the device is using for non-controlled radiation pattern intra-device MMW communications;

receive, via the MMW transceiver, an inbound message from another device, wherein the inbound message indicates a controlled radiation frequency range that the other device is using for its controlled radiation pattern intra-device MMW communications and a non-controlled frequency range that the other device is using for its non-controlled radiation pattern intra-device MMW communications;

comparing the non-controlled frequency range with the second frequency range; and

when the comparison of the non-controlled frequency range with the second frequency range is unfavorable, execute a frequency conflict resolution algorithm.

9. The device of claim 8, wherein the frequency conflict resolution algorithm comprises at least one of:

identifying at least one frequency of the non-controlled frequency range and flagging the at least one frequency as having a conflict; and

identifying the at least one frequency of the non-controlled frequency range, generating a message indicating use of the at least one frequency, and flagging the at least one frequency as available.

10. The device of claim 8, wherein the controller is further operably coupled to:

compare the first frequency range of the device with the controlled radiation frequency range of the other device; and

when the first frequency range of the device compares unfavorably with the controlled radiation frequency range of the other device, adjust the first frequency range such that the first frequency range of the device compares favorably with the controlled radiation frequency range of the other device.

11. The device of claim 8, wherein the controller is further operably coupled to:

compare the first frequency range of the device with the non-controlled radiation frequency range of the other device; and

when the first frequency range of the device compares unfavorably with the non-controlled radiation frequency range of the other device, execute a controlled radiation frequency conflict resolution algorithm.

12. The device of claim 11, wherein the controller is further operably coupled to execute the controlled radiation frequency conflicts resolution algorithm by at least one of:

identifying at least one frequency of the non-controlled frequency range and flagging the at least one frequency as having a conflict and transmitting, via the MMW transceiver, a message to the other device, wherein the message indicates that the at least one frequency is not be used by the other device; and

identifying the at least one frequency of the non-controlled frequency range;

transmitting, via the MMW transceiver, a message identifying the at least one frequency to the other device; and

receiving, via the MMW transceiver, a message whether the other device is requesting use of the at least one frequency or releasing use of the at least one frequency.

13. The device of claim 8, wherein the controller is further operably coupled to:

compare the second frequency range of the device with the controlled radiation frequency range of the other device; and

when the second frequency range of the device compares unfavorably with the controlled radiation frequency range of the other device, execute a controlled radiation frequency conflict resolution algorithm.

14. A device comprises:

a plurality of integrated circuits (ICs), wherein an IC of the plurality of ICs includes;

a millimeter wave (MMW) transceiver; and

a controller, wherein the controller is operably coupled to the MMW transceiver and to;

receive, via the MMW transceiver, an inbound message from another device, wherein the inbound message indicates a controlled radiation frequency range for controlled radiation pattern intra-device MMW communications and a non-controlled frequency range for non-controlled radiation pattern intra-device MMW communications;

compare operating frequency range of the device with the controlled radiation frequency range and the non-controlled frequency range;

when the operating frequency range of the device compares favorably to the controlled radiation frequency range and the non-controlled frequency range;

use the controlled radiation frequency range for the controlled radiation pattern intra-device MMW communications of the device; and

use the non-controlled frequency range for the non-controlled radiation pattern intra-device MMW communications of the device.

15. The device of claim 14, wherein the controller is further operably coupled to:

receive, via the MMW transceiver, an environmental control signal;

interpret the environment control signal to determine that the other device is a dominant intra-device resource utilization device and the device is a subservient intra-device resource utilization device.

16. The device of claim 14, wherein the controller is further operably coupled to:

when the operating frequency range of the device compares unfavorably to the controlled radiation frequency range and the non-controlled frequency range;

determine whether the controlled radiation frequency range compared unfavorably to the operating frequency range;

when the controlled radiation frequency range compared unfavorably to the operating frequency range, determine a portion of the operating frequency range that compares favorably to the controlled radiation frequency range; and

use the portion of the operating frequency range that compares favorably to the controlled radiation frequency range for the controlled radiation pattern intra-device MMW communications of the device.

17. The device of claim 14, wherein the controller is further operably coupled to:

when the operating frequency range of the device compares unfavorably to the controlled radiation frequency range and the non-controlled frequency range;

determine whether the non-controlled radiation frequency range compared unfavorably to the operating frequency range;

when the non-controlled radiation frequency range compared unfavorably to the operating frequency range, determine a portion of the operating frequency range that compares favorably to the non-controlled radiation frequency range; and

use the portion of the operating frequency range that compares favorably to the non-controlled radiation frequency range for the non-controlled radiation pattern intra-device MMW communications of the device.