Method and user equipment of uplink power control
US9918285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2013 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Aug 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are a method and user equipment of uplink power control. The method comprises the steps of: UE determines the target transmission power of uplink signal which transmitted on each synchronization uplink component carrier of current uplink sub-frame; Judging whether PRACH transmission exists on uplink secondary component carrier of current uplink sub-frame; If judged that there is, determining the PRACH target transmission power, and further judging that whether the sum of the uplink signal power and the PRACH target transmission power exceeds the maximum transmission power of UE; If judged exceeded, holding the PRACH target transmission power constant, and reducing the target transmission power of all or part of SC-FDMA symbol of uplink signal which is contained in current uplink sub-frame and needed to reduce power. The technical scheme of present invention is using for uplink power control when PRACH signal is overlap with other uplink signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.