RANDOM ACCESS METHOD AND APPARATUS BASED ON MULTIPLE UPLINK TIMING ADVANCES
First Claim
Patent Images
1. A method for performing random access based on multiple uplink timing advances, comprising:
- initiating, by a network side, a random access on a designated carrier of a secondary cell (SCell) for a user equipment (UE) when acquiring that the UE has the multiple uplink timing advances.
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Accused Products
Abstract
Disclosed are a random access method and apparatus based on multiple uplink timing advances. The method includes: when acquiring that a user equipment has multiple uplink timing advances, initiating, by a network side, for the user equipment a random access on a designated carrier of a secondary cell. According to the examples, random access in the SCell can be realized in scenarios that multi-TA is maintained.
37 Citations
27 Claims
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1. A method for performing random access based on multiple uplink timing advances, comprising:
initiating, by a network side, a random access on a designated carrier of a secondary cell (SCell) for a user equipment (UE) when acquiring that the UE has the multiple uplink timing advances. - View Dependent Claims (2, 3, 4, 5)
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6. (canceled)
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7. (canceled)
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8. A method for performing random access based on multiple uplink timing advances, comprising:
performing, by a user equipment (UE), a random access on a designated carrier of a secondary cell (SCell) according to an indication of a network side if the user equipment (UE) has multiple uplink timing advances. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. (canceled)
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16. A network side device, comprising:
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a determining module, to acquire that a user equipment (UE) has multiple uplink timing advances; and a processing module, to initiate for the UE a random access on a designated carrier of a secondary cell (SCell) when acquiring that the UE has multiple uplink timing advances. - View Dependent Claims (17, 18, 19)
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20-22. -22. (canceled)
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23. A user equipment (UE), comprising:
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a determining module, to determine that a UE has multiple uplink timing advances; and a processing module, to perform a random access on a designated carrier of a secondary cell (SCell) according to an indication of a network side if the UE has multiple uplink timing advances. - View Dependent Claims (24, 25, 26)
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27-30. -30. (canceled)
Specification