Method and apparatus for performing inter-frequency and inter-rat handover measurements in mbms
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Abstract
Disclosed are systems and methods that allow the a mobile communications device to perform inter-frequency and inter-RAT measurements while receiving MBMS data. As disclosed, control of measurement occasions are decided on by the UE using Discontinuous Reception during Forward Access Channel reception. Using aspects of the disclosed embodiments, each UE individually decides when to perform inter-frequency/RAT measurements (provided performance requirements on cell reselection are met). Outer coding procedures may then be performed to recover data lost during the measurements.
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Citations
21 Claims
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1-12. -12. (canceled)
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13. A method in a communication device for receiving Multimedia Broadcast and Multicast System (MBMS) data, comprising the steps of:
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receiving MBMS data on a first frequency;
switching to a second frequency to perform a measurement;
performing a measurement;
switching back to the first frequency to continue to receive MBMS data; and
,performing outer decoding to recover MBMS data not received during the performing the measurement step. - View Dependent Claims (14, 15)
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16. A communication device, comprising:
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a processor;
a memory coupled to the processor, wherein the memory includes instructions for;
receiving MBMS data on a first frequency;
switching to a second frequency to perform a measurement;
performing a measurement;
switching back to the first frequency to continue to receive MBMS data; and
,performing outer decoding to recover MBMS data not received during the performing the measurement step. - View Dependent Claims (17, 18)
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19. A method in a transmitter of a network node, said method comprising the steps of:
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receiving a series of transport blocks during a predetermined time period;
attaching a redundancy check to each transport block received during the predetermined time period to encode a second outer code data;
processing the code blocks through a first encoder to encode a first outer code data;
using a spreading code to encode inner code data; and
,transforming the inner code and outer code data into a radio signal such that the radio signal comprises transport blocks comprising inner code data and outer code data. - View Dependent Claims (20, 21)
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Specification