Configuration of a repeater

• US 8,121,535 B2
• Filed: 03/03/2008
• Issued: 02/21/2012
• Est. Priority Date: 03/02/2007
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Proctor, James A. Jr., Gainey, Kenneth M., Otto, James C., Dean, Richard Finch
• Primary Examiner(s): Nguyen, Tu X
• Application Number:
  US12/041,621
• Publication Number:
  US 20080311848A1
• Time in Patent Office: 1,450 Days
• Field of Search: 455/7, 455/11.1, 455/13.1, 455/15, 455/432.3
• US Class Current: 455/11.1
• CPC Class Codes: H04B 7/15542 Selecting at relay station its transmit and receive resources selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003
• CPC Class Codes: H04B 7/15571 by signal isolation, e.g. isolation by frequency or by antenna pattern, or by polarization
• CPC Class Codes: H04B 7/15585 by interference cancellation

Abstract

Methods and systems are provided to configure a frequency repeater. The frequency repeater is configured with an identity of a service provider and receives a message that defines a set of frequencies to be repeated, the frequencies are associated with a service provider that matches the preconfigured identity. A digital filter receives an incoming signal from the service provider, and filters and repeats the frequencies defined in the received message. The frequency receiver can also determine a set of frequencies to be filtered and repeated based on a cell search procedure performed with a modem that resides in the repeater. A policy established by the service provider can also be utilized to facilitate defining the set of figures to be repeated. By utilizing a signal quality metric and an isolation metric associated, with the performance of a receive and transmit antenna utilized by the repeater, the set of frequencies to be filtered and repeated can be adapted in real time.

Claims

1. A method for configuring a frequency repeater in a wireless environment, the method comprising:

receiving a message at the frequency repeater from a service provider defining a set of frequency channels with available service, wherein the frequency repeater is configured with an identification of the service provider, and wherein the configured frequency repeater is positioned in a location that is within signal-range of the service provider based on the identification;

configuring a digital filter to pass exclusively the received set of frequencies;

repeating the passed frequencies;

receiving, at the frequency repeater, an authorization message in a first operational location;

evaluating whether a current location of the frequency repeater differs from the first operational location;

detecting that the frequency repeater is no longer positioned at the first operational location based on the evaluation; and

disabling operation of the frequency repeater based on the detection.

2. The method of claim 1, wherein the configuring step includes:

receiving an overhead channel carrying an indication of the set of frequencies;

extracting the set of frequencies from the indication within the overhead channel.

3. The method of claim 1, further comprising:

determining a location of the frequency repeater by performing at least one of a triangulation or a trilateration.

4. The method of claim 3, wherein the determining step determines the location based at least in part upon a location indication from a location engine.

5. The method of claim 1, further comprising:

measuring a quality metric of a carrier'"'"'s signal to be repeated; and

measuring, responsive to the quality metric rising above a predetermined threshold, an isolation metric between a receive antenna and a transmit antenna operating in the frequency repeater.

6. The method of claim 5, further comprising:

monitoring a performance metric of the frequency repeater; and

setting an operational status indication based at least in part on at least one of the magnitude of the measured isolation metric or the monitored performance metric.

7. The method of claim 6, the operational status indication includes at least one of a value of “

good”

when the measured isolation metric is above a threshold or a value of “

fail”

when the measured isolation metric is below a threshold.

8. The method of claim 1, further comprising:

receiving a channel overhead message;

extracting from the overhead channel at least one frequency to repeat; and

configuring the digital filter to repeat the frequency.

9. The method of claim 1, further comprising:

after the disabling step, requesting authorization to repeat the at least one frequency at a second operational location,

wherein the second operational location is different from the first operational location.

10. The method of claim 1, wherein the set of frequencies to be repeated is acquired in a cell search of the cellular signals.

11. The method of claim 10, wherein the cell search is conducted by a modem residing in the repeater.

12. The method of claim 1, wherein the set of frequencies to be repeated includes a set of sub-bands within an operating band of the service provider.

13. The method of claim 1, wherein the set of frequencies to be repeated includes a set of predetermined frequencies associated with the service provider.

14. The method of claim 13, wherein the set of predetermined frequencies to be repeated is stored in the frequency repeater.

15. The method of claim 1, wherein the set of frequencies to be repeated is determined by an operation policy stored in the frequency repeater.

16. The method of claim 15, wherein the service provider establishes the operation policy.

17. The method of claim 15, wherein a network management service establishes the operation policy.

18. The method of claim 15, wherein the repetition policy is based at least in part on at least one of a number of available channels, a network integrity, or a user tier status.

19. The method of claim 18, wherein the repetition policy is based at least in part on at least one of a service cell load, a service cell interference level, or a power allocation scheme predetermined by the service provider.

20. A frequency repeater comprising:

a processor configured to store an identification of a service provider, wherein the frequency repeater is positioned in a location that is within signal-range of the service provider based on the stored identification;

to receive a message from the service provider defining a set of frequency channels with available service;

to configure a digital filter to pass exclusively the received set of frequencies; and

to repeat the passed frequencies;

to receive an authorization message in a first operational location;

to evaluate whether a current location of the frequency repeater differs from the first operational location;

to detect that the frequency repeater is no longer positioned at the first operational location based on the evaluation; and

to disable operation of the frequency repeater based on the detection; and

a memory coupled to the processor.

21. The frequency repeater of claim 20, wherein the processor is further configured to measure a quality metric of a carrier'"'"'s signal to be repeated, and, responsive to the quality metric rising above a predetermined threshold, to measure an isolation metric between a receive antenna and a transmit antenna operating in the repeater.

22. The frequency repeater of claim 21, wherein the processor is further configured to monitor a performance metric of the frequency repeater, and to set an operational status indication based at least in part on at least one of the magnitude of the measured isolation metric or the monitored performance metric.

23. The frequency repeater of claim 20, wherein the processor is further configured to receive a location indication of the frequency repeater from a location engine.

24. A frequency repeater that operates in a wireless environment, the apparatus comprising:

means for receiving a message at the frequency repeater from the service provider defining a set of frequency channels with available service, wherein the frequency repeater is configured with an identification of the service provider, and wherein the configured frequency repeater is positioned in a location that is within signal-range of the service provider based on the identification;

means for configuring a digital filter to pass exclusively the received set of frequencies;

means for repeating the passed frequencies;

means for receiving an authorization message in a first operational location;

means for evaluating whether a current location of the frequency repeater differs from the first operational location;

means for detecting that the frequency repeater is no longer positioned at the first operational location based on the evaluation; and

means for disabling operation of the frequency repeater based on the detection.

25. A non-transitory computer-readable storage medium containing instructions stored thereon, which, when executed by a frequency repeater, cause the frequency repeater to perform operations, the instructions comprising:

program code for receiving a message at the apparatus from the service provider defining a set of frequency channels with available service, wherein the frequency repeater is configured with an identification of the service provider, and wherein the configured frequency repeater is positioned in a location that is within signal-range of the service provider based on the identification;

program code for configuring a digital filter to pass exclusively the received set of frequencies;

program code for repeating the passed frequencies;

program code for receiving an authorization message in a first operational location;

program code for evaluating whether a current location of the frequency repeater differs from the first operational location;

program code for detecting that the frequency repeater is no longer positioned at the first operational location based on the evaluation; and

program code for disabling operation of the frequency repeater based on the detection.

26. The non-transitory computer-readable storage medium of claim 25, wherein the location at which the configured frequency repeater is positioned corresponds to a given location that exhibits a maximal signal for a carrier associated with the service provider.

27. The non-transitory computer-readable storage medium of claim 26, the defined set of frequency channels are associated with a wave form of the carrier.