METHODS AND APPARATUS FOR HANDLING MTC LONG DRX CYCLE/SLEEP LENGTHS
First Claim
Patent Images
1. A WTRU, the WTRU comprising:
- a processor, the processor being configured to;
determine a cycle base unit type and a length of a long discontinuous reception (DRX) cycle;
generate a number of base units of the cycle base unit type using the length of the long DRX cycle; and
generate the long DRX cycle from the number of base units.
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Abstract
Current wireless networks do not allow machine type communication (MTC) devices to have long discontinuous reception (DRX) cycles or sleep lengths. A long DRX cycle may allow MTC systems and devices to operate with much longer DRX/Sleep cycles/periods. This may facilitate the MTC operations for infrequent system access or infrequent system reaching (e.g. paged once in a week) with no or low mobility and may allow MTC devices to sleep for a long time with low power consumption.
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Citations
25 Claims
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1. A WTRU, the WTRU comprising:
a processor, the processor being configured to; determine a cycle base unit type and a length of a long discontinuous reception (DRX) cycle; generate a number of base units of the cycle base unit type using the length of the long DRX cycle; and generate the long DRX cycle from the number of base units. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless transmit/receive unit (WTRU) for determining when to receive a signal, the WTRU comprising:
a processor, the processor being configured to; determine a system frame number cycle number (SCN) within a total DRX period; determine a long DRX cycle length; and generate an offset SCN using the SCN and the long DRX cycle length. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A wireless transmit/receive unit (WTRU) for minimizing clock drift impact, the WTRU comprising:
a processor, the processor configured to; determine a long sleep length, a clock drift rate for a WTRU, and a wake-up time; and generate an adjustment window using the long sleep length, the clock drift rate, and the wake-up time. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A WTRU comprising:
a processor, the processor configured to; receive a first system frame number (SFN) cycle order number from a network; determine a second SFN cycle order number; and calculate a drift range using the first SFN cycle order number and the second SFN cycle order number. - View Dependent Claims (22, 23, 24, 25)
Specification