Method and apparatus for random access in multicarrier wireless communications
US11083020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2017 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Aug 3, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0866
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for random access in multicarrier wireless communications are disclosed. Methods and apparatus are provided for physical random access channel (PRACH) resource signaling, PRACH resource handling, preamble and PRACH resource selection, random access response (RAR) reception, preamble retransmission, and transmission and reception of subsequent messages. A method for maintaining an allowed multicarrier uplink (UL) random access channel (RACH) configuration set by adding an UL carrier to the allowed RACH configuration set provided that a triggering event occurs and performing a random access (RA) procedure using the allowed RACH configuration set. A method for sending data in multicarrier wireless communications by determining a set of available UL carriers and selecting an UL carrier from the set of available UL carriers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.