Beacon signals for repeaters within a wireless communications system

• US 8,626,060 B2
• Filed: 04/14/2011
• Issued: 01/07/2014
• Est. Priority Date: 04/14/2011
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Wang, Michael Mao, Gore, Dhananjay Ashok, Barriac, Gwendolyn Denise
• Primary Examiner(s): Nguyen, Tu X
• Application Number:
  US13/086,540
• Publication Number:
  US 20120264369A1
• Time in Patent Office: 999 Days
• Field of Search: 455/11.1, 455/13.1, 455/69, 455/522
• US Class Current: 455/11.1
• CPC Class Codes: H04B 7/15528 Control of operation parameters of a relay station to exploit the physical medium
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

In an embodiment, a first repeater configures a beacon signal that identifies the first repeater to one or more other repeaters. The first repeater transmits the configured beacon signal at a given transmission power level to the one or more other repeaters. The transmitted beacon signal is received at least by a second repeater. The second repeater reduces interference associated with other transmissions from the first repeater, such as retransmissions of donor signals, based on the received beacon signal.

Claims

1. A method of operating a repeater within a wireless communications system, comprising:

configuring a beacon signal that identifies the repeater to one or more other repeaters; and

transmitting the configured beacon signal at a given transmission power level to the one or more other repeaters,

wherein the given transmission power level is less than an uplink transmission power level at which uplink signals are repeated by the repeater in an uplink direction and/or a downlink transmission power at which downlink signals are repeated by the repeater in a downlink direction.

2. The method of claim 1, wherein the given transmission power level is less than the uplink transmission power level at which the uplink signals are repeated by the repeater in the uplink direction.

3. The method of claim 1, wherein the given transmission power level is less than the downlink transmission power level at which the downlink signals are repeated by the repeater in the downlink direction.

4. The method of claim 1, wherein the configured beacon signal is configured based on an identifier that uniquely identifies the repeater within a given serving area of the wireless communications system.

5. The method of claim 4, wherein the configuring step includes:

selecting a pseudo-noise (PN) sequence from a set of PN sequences based on a hash function of the identifier.

6. The method of claim 4, wherein the identifier corresponds to a media access control (MAC) identifier.

7. The method of claim 1, wherein the transmitting step is performed on a periodic basis.

8. The method of claim 1, wherein the transmitting step is performed on a continuous basis.

9. The method of claim 1, further comprising:

performing the configuring and transmitting steps for each frequency or carrier upon which the repeater is responsible for retransmitting donor signals.

10. The method of claim 1,

wherein the repeater and the one or more other repeaters are fixed wireless repeaters that are each configured to receive first wireless donor signals on a first link and to retransmit the first wireless donor signals on a second link, and

wherein the repeater and the one or more other repeaters are also configured to receive second wireless donor signals on the second link and to retransmit the second wireless donor signals on the first link.

11. The method of claim 10,

wherein the first link is between the respective repeater and a base station, and

wherein the second link is between the respective repeater and one or more client devices being served by the base station.

12. The method of claim 11,

wherein the first wireless donor signals are downlink signals from the base station to the one or more client devices, and

wherein the second wireless donor signals are uplink signals from the one or more client devices to the base station.

13. A repeater within a wireless communications system, comprising:

means for configuring a beacon signal that identifies the repeater to one or more other repeaters; and

means for transmitting the configured beacon signal at a given transmission power level to the one or more other repeaters,

wherein the given transmission power level is less than an uplink transmission power level at which uplink signals are repeated by the repeater in an uplink direction and/or a downlink transmission power at which downlink signals are repeated by the repeater in a downlink direction.

14. A repeater within a wireless communications system, comprising:

logic configured to configure a beacon signal that identifies the repeater to one or more other repeaters; and

logic configured to transmit the configured beacon signal at a given transmission power level to the one or more other repeaters,

wherein the given transmission power level is less than an uplink transmission power level at which uplink signals are repeated by the repeater in an uplink direction and/or a downlink transmission power at which downlink signals are repeated by the repeater in a downlink direction.

15. A non-transitory computer-readable storage medium containing instructions stored thereon, which, when executed by a repeater within a wireless communications system, cause the repeater to perform operations, the instructions comprising:

program code to configure a beacon signal that identifies the repeater to one or more other repeaters; and

program code to transmit the configured beacon signal at a given transmission power level to the one or more other repeaters,

wherein the given transmission power level is less than an uplink transmission power level at which uplink signals are repeated by the repeater in an uplink direction and/or a downlink transmission power at which downlink signals are repeated by the repeater in a downlink direction.