Rake receiver finger assignment based on signal path concentration

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying a plurality of identified signal paths from a transmitter to an apparatus, the identified signals paths having time offsets;
• detecting a fat path condition based on a concentration of the plurality of identified signal paths;
• and
• assigning, when the fat path condition is detected, a concentrated finger assignment to assign at least one rake finger to a time offset between time offsets of two identified signal paths of the plurality of identified signal paths, wherein said time offset is different than the time offsets of each of the plurality of identified signal paths.

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying a plurality of identified signal paths from a transmitter to an apparatus, the identified signals paths having time offsets;
• detecting a fat path condition based on a number of identified signal paths within a time window;
• assigning, when the fat path condition is detected, a concentrated finger assignment to assign at least one rake finger to a time offset between time offsets of two signal paths of the plurality of signal paths;
• generating a filter output based on a concentrated path indicator and a previous filter output;
• and
• generating a fat path indicator indicating a fat path condition when the filter output is greater than a threshold.

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying a plurality of identified signal paths from a transmitter to an apparatus, the identified signals paths having time offsets;
• detecting a fat path condition based on a concentration of the plurality of identified signal paths;
• and
• assigning, when the fat path condition is detected, a concentrated finger assignment to assign at least one rake finger to a time offset between time offsets of two signal paths of the plurality of signal paths, wherein the assigning further comprises assigning rake fingers to time offsets of identified signal paths and to time offsets at half chip increments from a reference signal path.

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying a plurality of identified signal paths from a transmitter to the apparatus, the identified signals paths having time offsets;
• detecting a fat path condition based on a concentration of the plurality of identified signal paths;
• and
• assigning, when the fat path condition is detected, a concentrated finger assignment to assign at least one rake finger to a time offset between time offsets of two signal paths of the plurality of signal paths wherein the assigning further comprises assigning rake fingers only to time offsets of identified signal paths when the detecting the fat path condition indicates a distributed signal path condition.

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying an energy and a relative time shift for each of a plurality of pilot signal versions of a pilot signal transmitted from a transmitter to a rake receiver system to identify a plurality of identified signal paths from the transmitter to the rake receiver system;
• generating a filter value based on a previous filter value and based on a number of identified signal paths within a time window from a reference signal path corresponding to a highest energy pilot signal version;
• indicating a fat path condition when the filter value is greater than a threshold;
• and
• assigning rake receiver fingers at time offsets between at least two time offsets of the identified paths when the fat path condition is indicated, wherein said assigned time offsets are different than the time offsets of each of the plurality of identified signal paths.

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying an energy and a relative time shift for each of a plurality of pilot signal versions of a pilot signal transmitted from a transmitter to a rake receiver system to identify a plurality of identified signal paths from the transmitter to the rake receiver system;
• generating a filter value based on a previous filter value and based on a number of identified signal paths within a time window from a reference signal path corresponding to a highest energy pilot signal version;
• indicating a fat path condition when the filter value is greater than a threshold;
• assigning rake receiver fingers at time offsets between at least two time offsets of the identified paths when the fat path condition is indicated;
• and
• determining the number of identified signal paths within a time window, generating the filter value is in accordance with:
• y(n)=0.95y(n−1)+0.05P(n),
• where y is the filter output, n is a wake occurrence of an access terminal measured from an initialization of the access terminal, and P is the number of identified signal paths within the time window.

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying a plurality of signal paths from a transmitter to the apparatus, the signals paths having time offsets from a reference signal path;
• detecting a fat path condition based on a concentration of the plurality of signal paths within a time window;
• and
• assigning, when the fat path condition is detected, at least one rake finger to a time offset between time offsets of two identified signal paths of the plurality of identified signal paths, wherein said time offset is different than the time offsets of each of the plurality of identified signal paths.

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying a plurality of signal paths from a transmitter to the apparatus, the signals paths having time offsets from a reference signal path;
• detecting a fat path condition based on a concentration of the plurality of signal paths within a time window, the detecting comprising:
• counting a number of identified signal paths within the time window;
• evaluating the number of identified signal paths within the time window;
• generating a filter output based on the concentrated path indicator and a previous filter output;
• and
• evaluating the filter output to generate a fat path indicator indicating a fat path condition when the filter output is greater than a threshold;
• and
• assigning, when the fat path condition is detected, at least one rake finger to a time offset between time offsets of two signal paths of the plurality of signal paths.

Computer readable media embodying a method of operating in a wide-band code division multiple access (WCDMA) communication system, the method comprising:

• processing a plurality of signal versions of a signal transmitted from a base station to an access terminal and received by a plurality of rake receiver fingers;
• identifying an energy and a relative time shift for each of a plurality of pilot signal versions of a pilot signal transmitted from a transmitter to the access terminal to identify a plurality of identified signal paths from the base station to the access terminal;
• generating a filter value based on a previous filter value and based on a number of identified signal paths within a time window from a reference signal path corresponding to a highest energy pilot signal version;
• indicating a fat path condition when the filter value is greater than a threshold;
• and
• assigning rake receiver fingers at time offsets between at least two time offsets of the identified paths when the fat path condition is indicated.

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying a plurality of identified signal paths from a transmitter to the apparatus, the identified signals paths having time offsets from a reference path;
• detecting a fat path condition based on a concentration of the plurality of identified signal paths;
• and
• assigning, when the fat path condition is detected, a concentrated finger assignment to assign at least one rake finger to a time offset between time offsets of two identified signal paths of the plurality of identified signal paths, wherein said time offset is different than the time offsets of each of the plurality of identified signal paths.

Computer readable media embodying a method of assigning rake receiver fingers, the method comprising:

• identifying a plurality of identified signal paths from a transmitter to the apparatus, the identified signals paths having time offsets from a reference path;
• detecting a fat path condition based on a number of identified signal paths within a time window, wherein the detecting comprises:
• generating a filter output based on a concentrated path indicator and a previous filter output;
• and
• generating a fat path indicator indicating a fat path condition when the filter output is greater than a threshold;
• and
• assigning, when the fat path condition is detected, a concentrated finger assignment to assign at least one rake finger to a time offset between time offsets of two signal paths of the plurality of signal paths.