Method and apparatus for configuring a RAKE receiver

An apparatus for configuring a RAKE receiver, the apparatus comprising:

• a first searcher, the first searcher configured to search a first channel;
• a second searcher, the second searcher configured to search a second channel, the second searcher configured to use information from the first searcher to search the second channel,
• wherein:
• the first searcher is configured to generate a first set of correlation values corresponding to a first set of delays;
• the second searcher is configured to use the first set of correlation values and the first set of delays to generate a set of taps for the second channel;
• the first searcher is configured to find a maximum correlation value, the second searcher is configured to use the delay corresponding to the maximum correlation value to generate at least one of the set of taps;
• and
• the second searcher is configured to generate the at least one of the set of taps by shifting a search finger an amount equal to the delay corresponding to the maximum correlation value.

An apparatus for configuring a RAKE receiver, the apparatus comprising:

• a first searcher, the first searcher configured to search a first channel;
• a second searcher, the second searcher configured to search a second channel, the second searcher configured to use information from the first searcher to search the second channel,
• wherein:
• the first searcher is configured to generate a first set of correlation values corresponding to a first set of delays;
• the second searcher is configured to use the first set of correlation values and the first set of delays to generate a set of taps for the second channel;
• the first searcher is configured to find a maximum correlation value, the second searcher is configured to use the delay corresponding to the maximum correlation value to generate at least one of the set of taps;
• and
• the second searcher is configured to generate the at least one of the set of taps by shifting a search finger an amount equal to the sum of the delay corresponding to the maximum correlation value and a predetermined value.

An apparatus for configuring a RAKE receiver, the apparatus comprising:

• a first searcher, the first searcher configured to search a first channel;
• a second searcher, the second searcher configured to search a second channel, the second searcher configured to use information from the first searcher to search the second channel,
• wherein:
• the first searcher is configured to generate a first set of correlation values corresponding to a first set of delays;
• the second searcher is configured to use the first set of correlation values and the first set of delays to generate a set of taps for the second channel;
• the first searcher is configured to find a maximum correlation value, the second searcher is configured to use the delay corresponding to the maximum correlation value to generate at least one of the set of taps;
• and
• the second searcher is configured to use the delay corresponding to the maximum correlation value to generate a search window, the search window comprising a start delay value and a finish delay value.

An apparatus for configuring a RAKE receiver, the apparatus comprising:

• a first searcher, the first searcher configured to search a first channel;
• a second searcher, the second searcher configured to search a second channel, the second searcher configured to use information from the first searcher to search the second channel,
• wherein:
• the first searcher is configured to generate a first set of correlation values corresponding to a first set of delays;
• the second searcher is configured to use the first set of correlation values and the first set of delays to generate a set of taps for the second channel;
• and
• the second searcher is configured to use the first set of correlation values and the first set of delays and a minimum threshold value to generate a search window, the search window comprising a start delay value and a finish delay value.

An apparatus for configuring a RAKE receiver, the apparatus comprising:

• a first searcher, the first searcher configured to search one or more paths having different delays in a first channel;
• a second searcher, the second searcher configured to search one or more paths having different delays in a second channel, the second searcher operable to use information about delay times from the first searcher to search the second channel;
• and
• the second searcher configured to make a decision whether to use information from the first searcher to search the second channel.

A method for configuring a RAKE receiver, the method comprising the steps of:

• searching one or more paths having different delays in a first channel;
• generating a delay profile for the first channel;
• and
• searching one or more paths having different delays in a second channel using information about delay times from the delay profile.

A method for configuring a RAKE receiver, the method comprising the steps of:

• searching a first channel;
• generating a delay profile for the first channel;
• searching a second channel using information from the delay profile;
• finding a maximum correlation value for the first channel;
• and
• shifting a search finger an amount equal to the delay corresponding to the maximum correlation value.

A method for configuring a RAKE receiver, the method comprising the steps of:

• searching a first channel;
• generating a delay profile for the first channel;
• searching a second channel using information from the delay profile;
• finding a maximum correlation value for the first channel;
• and
• shifting a search finger an amount equal to the sum of the delay corresponding to the maximum correlation value and a predetermined value.

A method for configuring a RAKE receiver, the method comprising the steps of:

• searching a first channel;
• generating a delay profile for the first channel;
• searching a second channel using information from the delay profile;
• finding a maximum correlation value for the first channel;
• generating a search window;
• and
• forming the search window around the delay corresponding to the maximum correlation value.

A method for configuring a RAKE receiver, the method comprising the steps of:

• searching a first channel;
• generating a delay profile for the first channel;
• searching a second channel using information from the delay profile;
• finding a maximum correlation value for the first channel;
• generating a search window;
• and
• forming the search window around a weighted average of a set of delays corresponding to a set of maximum correlation values.