Reverse link power controlled repeater

• US 7,924,751 B2
• Filed: 11/20/2002
• Issued: 04/12/2011
• Est. Priority Date: 11/20/2001
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Dean, Richard F.
• Primary Examiner(s): Phuong; Dai A
• Application Number:
  US10/300,969
• Publication Number:
  US 20030123401A1
• Time in Patent Office: 3,065 Days
• Field of Search: 455/11.1, 455/16, 455/13.1, 455/550.1, 455/553.1, 455/562.1 D
• US Class Current: 370/279
• CPC Class Codes: H04B 7/15535 Control of relay amplifier gain amplifier gain control in general H03G3/00; gain control reducing self - or loop interference H04B7/15578
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04W 52/08 Closed loop power control
• CPC Class Codes: H04W 52/14 Separate analysis of uplink or downlink
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/46 in multi hop networks, e.g. wireless relay networks

Abstract

The invention provides a mechanism for automatically setting reverse link gain or power for a repeater (120) used in a communication system (100) through the use of the reverse link power control of a built-in wireless communications device. By embedding a wireless communication device (430, 630, 700) inside the repeater and injecting reverse link signals of the embedded device into the reverse link of the repeater (124A, 124B), the gain of the repeater is maintained relatively constant. The embedded WCD can also be activated on a periodic basis to make calls and utilize reverse link power-control to calibrate or re-calibrate the gain of the repeater, making it a power-controlled repeater.

Claims

1. A repeater comprising:

a forward link circuitry configured to receive communication signals received at the repeater from a base station, the forward link circuitry configured to amplify a first portion of the received communication signals to transmit the amplified communication signals to mobile stations;

a repeater phone including a first input coupled to the forward link circuitry to receive a second portion of the received communication signals received at the repeater from the base station, wherein the repeater phone includes a power control circuitry configured to generate a gain control signal in response to the received second portion of the received communication signals received at the repeater from the base station, the repeater phone further including a first output configured to transmit the gain control signal;

a controller in communication with the repeater phone and a variable gain element, wherein the controller is configured to receive the gain control signal and generate information indicative of the gain control signal;

a reverse link circuitry including the variable gain element, wherein the variable gain element is configured to receive the information indicative of the gain control signal and to adjust reverse link gain of the repeater based on the information indicative of the gain control signal.

2. The repeater of claim 1 wherein communication signals being processed by said repeater phone are CDMA type spread spectrum modulated communication signals.

3. The repeater of claim 1, wherein the repeater phone further includes a second output, and wherein the second output of the repeater phone is in communication with the reverse link circuitry.

4. The repeater of claim 1, wherein the reverse link circuitry and the forward link circuitry are each in communication with a donor antenna configured to receive signals at the repeater.

5. The repeater of claim 4, further comprising a duplexer in communication with the donor antenna, wherein the duplexer is configured to separate signals received at the repeater on the forward link from signals received at the repeater on the reverse link.

6. The repeater of claim 1, wherein the variable gain element comprises one or more variable gain amplifiers.

7. The repeater of claim 1, wherein the reverse link circuitry and the forward link circuitry are each in communication with an output antenna configured to transmit signals from the repeater.