Apparatus and method of inter-radio access technology measurement scheduling based on an undetected frequency

An apparatus for wireless communication, comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor, wherein the at least one processor is configured to:
• operate a wireless device on a first wireless communication technology;
• detect a first cell on a first frequency of a second wireless communication technology, wherein the second wireless communication technology is preferred relative to the first wireless communication technology based on a preference scheme;
• determine that the detected first cell of the second wireless communication technology satisfies a first reselection criterion including a first threshold based on a first measurement;
• identify a group of frequencies of the second wireless communication technology, wherein the group of frequencies includes the first frequency of the detected cell and a second frequency identified as an undetected frequency, the undetected frequency based on monitoring the second frequency without detecting a second cell;
• expedite a determination of whether to perform cell reselection to the second wireless communication technology based on the undetected frequency and the detected first cell of the second wireless communication technology satisfying the first reselection criterion and being associated with the preference scheme, wherein the at least one processor configured to expedite the determination of whether to perform cell reselection is further configured to increase a frequency of measuring the group of frequencies associated with the detected first cell;
• determine to reselect from the first wireless communication technology to the detected first cell of the second wireless communication technology when at least one new measurement based on the increased measurement frequency of the signal of the detected cell satisfies a second reselection criterion having a second threshold;
• and
• operating the wireless device on the second wireless communication technology.

An apparatus of measurement in a wireless communication system, comprising:

• means for operating a wireless device on a first wireless communication technology;
• means for detecting a first cell on a first frequency of a second wireless communication technology, wherein the second wireless communication technology is preferred relative to the first wireless communication technology based on a preference scheme;
• means for determining that the detected first cell of the second wireless communication technology satisfies a first reselection criterion including a first threshold based on a first measurement;
• means for identifying a group of frequencies of the second wireless communication technology, wherein the group of frequencies includes the first frequency of the detected cell and a second frequency identified as an undetected frequency, the undetected frequency based on monitoring the second frequency without detecting a second cell;
• means for expediting a determination of whether to perform cell reselection to the second wireless communication technology based on the undetected frequency and the detected first cell of the second wireless communication technology satisfying the first reselection criterion and being associated with the preference scheme, wherein the means for expediting the determination of whether to perform cell reselection comprises means for increasing a frequency of measuring the detected first cell;
• means for determining to reselect from the first wireless communication technology to the detected first cell of the second wireless communication technology when at least one new measurement based on the increased measurement frequency of the signal of the detected cell satisfies a second reselection criterion having a second threshold;
• and
• means for operating the wireless device on the second wireless communication technology.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising code for:
• operating a wireless device on a first wireless communication technology;
• detecting a first cell on a first frequency of a second wireless communication technology, wherein the second wireless communication technology is preferred relative to the first wireless communication technology based on a preference scheme;
• determining that the detected first cell of the second wireless communication technology satisfies a first reselection criterion including a first threshold based on a first measurement;
• identifying a group of frequencies of the second wireless communication technology, wherein the group of frequencies includes the first frequency of the detected cell and a second frequency identified as an undetected frequency, the undetected frequency based on monitoring the second frequency without detecting a second cell;
• expediting a determination of whether to perform cell reselection to the second wireless communication technology based on the undetected frequency and the detected first cell of the second wireless communication technology satisfying the first reselection criterion and being associated with the preference scheme, wherein the expediting the determination of whether to perform cell reselection comprises increasing a frequency of measuring the detected first cell;
• determining to reselect from the first wireless communication technology to the detected first cell of the second wireless communication technology when at least one new measurement based on the increased measurement frequency of the signal of the detected cell satisfies a second reselection criterion having a second threshold;
• and
• means for operating the wireless device on the second wireless communication technology.