US Patent No. 10,893,548
PHYSICAL RANDOM ACCESS CHANNEL DESIGN FOR LICENSED ASSISTED ACCESS
| Patent No. | 10,893,548 |
|---|---|
| Issue Date | January 12, 2021 |
| Title | Physical Random Access Channel Design For Licensed Assisted Access |
| Inventorship | Qiaoyang Ye, Fremont, CA (US) Jeongho Jeon, San Jose, CA (US) Seau S. Lim, South Wales (GB) Huaning Niu, San Jose, CA (US) Abhijeet Bhorkar, Fremont, CA (US) |
| Assignee | Intel IP Corporation, Santa Clara, CA (US) |
Claim of US Patent No. 10,893,548
1. An apparatus configured to be employed within one or more evolved Node Bs (eNodeBs), the apparatus comprising:control circuitry configured to generate a physical downlink control channel (PDCCH), wherein the PDCCH includes a PDCCH order for contention free PRACH transmission using a license assisted access (LAA) secondary cell, and generate a random access response (RAR) within a RAR window using the secondary cell; and
a transceiver configured to retry transmission of the PDCCH order upon a listen before talk (LBT) failure using a primary cell after a number of retries of the transmission of the PDCCH order using the secondary cell.
a transceiver configured to retry transmission of the PDCCH order upon a listen before talk (LBT) failure using a primary cell after a number of retries of the transmission of the PDCCH order using the secondary cell.