Implicit DRX cycle length adjustment control in LTE—ACTIVE mode
First Claim
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1. A wireless transmit receive unit (WTRU), the WTRU comprising a processor configured to:
- receive a message comprising a DRX configuration from a base station, the DRX configuration comprising a first DRX cycle length, a second DRX cycle length, and an indication of a resume period, wherein the indication of a resume period indicates a number of DRX cycles at which the WTRU is to perform DRX using the first DRX cycle length prior to implicitly transitioning to performing DRX using the second DRX cycle length if no new transmissions are received;
perform DRX using the first DRX cycle length;
determine that the WTRU has performed DRX using the first DRX cycle length for the number of DRX cycles indicated by the resume period without receiving a new transmission; and
transition the WTRU from performing DRX using the first DRX cycle length to performing DRX using the second DRX cycle based on determining that the WTRU has performed DRX using the first DRX cycle length for the determined number of DRX cycles indicated by the resume period without receiving a new transmission, wherein the second DRX cycle length is a multiple of the first DRX cycle length.
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Abstract
A method for controlling discontinuous reception in a wireless transmit/receive unit includes defining a plurality of DRX levels, wherein each DRX level includes a respective DRX cycle length and transitioning between DRX levels based on a set of criteria. The transitioning may be triggered by implicit rules.
37 Citations
19 Claims
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1. A wireless transmit receive unit (WTRU), the WTRU comprising a processor configured to:
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receive a message comprising a DRX configuration from a base station, the DRX configuration comprising a first DRX cycle length, a second DRX cycle length, and an indication of a resume period, wherein the indication of a resume period indicates a number of DRX cycles at which the WTRU is to perform DRX using the first DRX cycle length prior to implicitly transitioning to performing DRX using the second DRX cycle length if no new transmissions are received; perform DRX using the first DRX cycle length; determine that the WTRU has performed DRX using the first DRX cycle length for the number of DRX cycles indicated by the resume period without receiving a new transmission; and transition the WTRU from performing DRX using the first DRX cycle length to performing DRX using the second DRX cycle based on determining that the WTRU has performed DRX using the first DRX cycle length for the determined number of DRX cycles indicated by the resume period without receiving a new transmission, wherein the second DRX cycle length is a multiple of the first DRX cycle length. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless transmit receive unit (WTRU), the WTRU comprising a processor configured to:
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receive a message comprising a DRX configuration from a base station, the DRX configuration comprising a first DRX cycle length, a second DRX cycle length, and an indication of a resume period, wherein the indication of a resume period indicates a number of DRX cycles at which the WTRU is to perform DRX using the first DRX cycle length prior to implicitly transitioning to performing DRX using the second DRX cycle length if no new transmissions are received; perform DRX using the second DRX cycle length; receive a trigger; perform DRX using the first DRX cycle length based on receiving the trigger; determine that the WTRU has performed DRX using the first DRX cycle length for the number of DRX cycles indicated by the resume period without receiving a new transmission; and transition the WTRU from performing DRX using the first DRX cycle length to performing DRX using the second DRX cycle based on determining that the WTRU has performed DRX using the first DRX cycle length for the determined number of DRX cycles indicated by the resume period without receiving a new transmission, wherein the second DRX cycle length is a multiple of the first DRX cycle length. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method implemented by a wireless transmit receive unit (WTRU), the method comprising:
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the WTRU receiving a message comprising a DRX configuration from a base station, the DRX configuration comprising a first DRX cycle length, a second DRX cycle length, and an indication of a resume period, wherein the indication of a resume period indicates a number of DRX cycles at which the WTRU is to perform DRX using the first DRX cycle length prior to implicitly transitioning to performing DRX using the second DRX cycle length if no new transmissions are received; the WTRU performing DRX using the second DRX cycle length; the WTRU receiving a trigger; the WTRU performing DRX using the first DRX cycle length based on receiving the trigger; the WTRU determining that the WTRU has performed DRX using the first DRX cycle length for the number of DRX cycles indicated by the resume period without receiving a new transmission; and the WTRU transitioning performing DRX using the first DRX cycle length to performing DRX using the second DRX cycle based on determining that the WTRU has performed DRX using the first DRX cycle length for the determined number of DRX cycles indicated by the resume period without receiving a new transmission, wherein the second DRX cycle length is a multiple of the first DRX cycle length. - View Dependent Claims (17, 18, 19)
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Specification