METHOD AND APPARATUS FOR REDUCING SIGNALING AND DELAY FOR UPLINK SCHEDULING IN A WIRELESS COMMUNICATION NETWORK
First Claim
1. A method for reducing signalling for UL (Uplink) scheduling, comprising:
- activating a newly configured SCell (Secondary Cell);
starting a TA (Timing Alignment/Advance) timer associated with the SCell upon detection of a specific DL (Downlink) signaling;
detecting and processing a PDCCH (Physical Downlink Control Channel) for a PUSCH (Physical Uplink Shared Channel) transmission; and
sending a MAC (Mac Access Control) PDU (Protocol Data Unit) corresponding to the PDCCH scheduling on a PUSCH of the SCell based on an UL transmission timing equal to a specific value.
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Abstract
A method and apparatus are disclosed for reducing signaling and delay for uplink scheduling in a wireless communication network. The method includes activating a newly configured SCell (Secondary Cell). The method also includes starting a TA (Timing Alignment/Advance) timer associated with the SCell upon detection of a specific DL (Downlink) signaling. The method further includes detecting and processing a PDCCH (Physical Downlink Control Channel) for a PUSCH (Physical Uplink Shared Channel) transmission. In addition, the method includes sending a MAC (Mac Access Control) PDU (Protocol Data Unit) corresponding to the PDCCH scheduling on a PUSCH of the SCell based on an UL transmission timing equal to a specific value.
24 Citations
22 Claims
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1. A method for reducing signalling for UL (Uplink) scheduling, comprising:
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activating a newly configured SCell (Secondary Cell); starting a TA (Timing Alignment/Advance) timer associated with the SCell upon detection of a specific DL (Downlink) signaling; detecting and processing a PDCCH (Physical Downlink Control Channel) for a PUSCH (Physical Uplink Shared Channel) transmission; and sending a MAC (Mac Access Control) PDU (Protocol Data Unit) corresponding to the PDCCH scheduling on a PUSCH of the SCell based on an UL transmission timing equal to a specific value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for setting TA value for UL (Uplink) scheduling, comprising:
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activating a newly configured SCell (Secondary Cell); setting TA value associated with the SCell equals to a first specific value if the TA timer has been set to infinity or to a number that is larger than a second specific value. - View Dependent Claims (10)
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11. A communication device for reducing signalling for UL (Uplink) scheduling, the communication device comprising:
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a control circuit; a processor installed in the control circuit; a memory installed in the control circuit and operatively coupled to the processor; wherein the processor is configured to execute a program code stored in memory to reduce signalling for UL scheduling by; activating a newly configured SCell (Secondary Cell); starting a TA (Timing Alignment/Advance) timer associated with the SCell upon detection of a specific DL (Downlink) signaling; detecting and processing a PDCCH (Physical Downlink Control Channel) for a PUSCH (Physical Uplink Shared Channel) transmission; and sending a MAC (Mac Access Control) PDU (Protocol Data Unit) corresponding to the PDCCH scheduling on a PUSCH of the SCell based on an UL transmission timing equal to a specific value. - View Dependent Claims (12, 15, 16, 17, 18, 19, 20)
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13. (canceled)
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14. (canceled)
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21. A communication device for setting TA value for UL (Uplink) scheduling, the communication device comprising:
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a control circuit; a processor installed in the control circuit; a memory installed in the control circuit and operatively coupled to the processor; wherein the processor is configured to execute a program code stored in memory to set TA value for UL scheduling by; activating a newly configured SCell (Secondary Cell); setting TA value associated with the SCell equals to a first specific value if the TA timer has been set to infinity or to a number that is larger than a second specific value. - View Dependent Claims (22)
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Specification