发明名称 |
PERFORMING RANDOM ACCESS IN CARRIER AGGREGATION |
摘要 |
Systems, apparatus and methods can be implemented for performing random access in carrier aggregation. A user equipment (UE) can transmit a random access preamble to a secondary access device of a second carrier, where the UE is served by both a primary access device and the secondary access device, and the UE is configured to attempt a total number of blind decoding attempts for decoding physical downlink control channel candidates of a UE-specific search space of the second carrier. The UE can perform a first blind decoding of first PDCCH candidates of the common search space of the second carrier, and perform a second blind decoding of second PDCCH candidates of the UE specific search space of the second carrier. A number of blind decoding attempts for the first and second blind decodings is less than or equal to the configured total number of blind decoding attempts. |
申请公布号 |
US2015296542(A1) |
申请公布日期 |
2015.10.15 |
申请号 |
US201114238296 |
申请日期 |
2011.08.11 |
申请人 |
Heo Youn Hyoung;Koo Changhoi;Cai Zhijun;Suzuki Takashi |
发明人 |
Heo Youn Hyoung;Koo Changhoi;Cai Zhijun;Suzuki Takashi |
分类号 |
H04W74/08;H04L1/00;H04W72/04 |
主分类号 |
H04W74/08 |
代理机构 |
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代理人 |
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主权项 |
1. A method performed by a user equipment ‘UE’, the method comprising:
transmitting from the ‘UE’ a random access preamble to a secondary access device of a second carrier, the UE being served by a primary access device and the secondary access device, and the UE configured to attempt a total number of blind decoding attempts for decoding physical downlink control channel ‘PDCCH’ candidates of a UE-specific search space of the second carrier; and performing a first blind decoding of first PDCCH candidates of the common search space of the second carrier; performing a second blind decoding of second PDCCH candidates of the UE specific search space of the second carrier, wherein a number of blind decoding attempts for the first and second blind decodings is less than or equal to the configured total number of blind decoding attempts. |
地址 |
Bucheon-si KR |