Method and apparatus for transmitting uplink
US9344242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2014 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Nov 12, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, performed by a user equipment, is described for uplink transmission in a wireless communication system. A first time alignment (TA) to a first cell belonging to a first timing advance group (TAG) is performed. A second TA to a second cell belonging to a second TAG is performed. A determination is made as to whether to transmit or drop a sounding reference signal (SRS) on a subframe. The SRS is determined to be dropped based on whether the first and second TAGs are configured, whether at least one symbol of the subframe is used to transmit the SRS toward the second cell of the second TAG and also used to transmit a physical uplink shared channel (PUSCH) toward the first cell of the first TAG, and whether a total uplink transmission power exceeds a maximum value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.