Nova Patents
NO20065210L

Methods and apparatus for selecting between multiple carriers using a single receiver chain tuned to a single carrier

Abstract

The choice between multiple carriers (carriers or carrier frequencies) uses receivers that are adapted to carrier choices in wireless communication systems where multiple carriers are used. Even though the receiver is tuned to a single frequency band, an estimate of the channel quality of the currently used carrier and also in an alternative carrier can be produced without the receiver having to switch between the carriers. Transmitters belonging to different cell / sector in a coverage area use different carrier frequencies, but can periodically transmit using a neighboring carrier carrier frequency. Mobile node receivers use a single RF chain with a controllable RF filter to receive and process a signal in the first selected carrier band, the signal comprising two components, namely a first identified with the first selected band and a second component identified with the other alternative bond. Separate quality indicator values ​​are obtained from the first and second signal components, compared and lead to a determination of whether or not the receiver's filter should be switched to the second band.

NO20065210L, drawing sheet 1
Sheet 1 of 1

Term

No projected expiry on record.

  1. Priority
  2. Filed
  3. Published
  4. Today

8 paragraphs, as filed

2004.06.21, US, 10 / 872,674 (41) General Order 2006.12.18 (71) Seeking (72) Inventor (74) Proxy

Qualcomm Flarion Technologies Inc., 5775 Morehouse Drive, CA92121 SAN DIEGO, US

Rajiv Laroia, 455 Somerville Road, NJ07920 BASKING RIDGE, US

Junyi Li, 357 Wren Lane, NJ07921 BEDMINSTER, US

Frank A Lane, 208 Turkey Hill Road, NJ08802 ASBURY, US

Tandbergs Patentkontor AS, PO Box 7085 Majorstua, 0306 OSLO, NO (54) Designation Procedure and apparatus for selecting multiple carriers using a single receiver chain tuned to a single carrier (57) Summary

The choice between multiple carriers (carriers or carrier frequencies) uses receivers that are adapted to carrier choices in wireless communication systems where multiple carriers are used. Even though the receiver is tuned to a single frequency band, an estimate of the channel quality of the currently used carrier and also in an alternative carrier can be produced without the receiver having to switch between the carriers. Transmitters belonging to different cell / sector in a coverage area use different carrier frequencies, but can periodically transmit using a neighboring carrier carrier frequency. Mobile node receivers use a single RF chain with a controllable RF filter to receive and process a signal in the first selected carrier band, the signal comprising two components, namely a first identified with the first selected band and a second component identified with the other alternative bond. Separate quality indicator values ​​are obtained from the first and second signal components, compared and lead to a determination of whether or not the receiver's filter should be switched to the second band.

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