Uplink sounding reference signals configuration and transmission
US10568048B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Feb 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/325
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for uplink sounding reference signals (SRS) transmissions are disclosed. A WTRU-specific configuration of WTRU-specific SRS subframes for performing SRS transmissions is received. A trigger is received in a subframe from a base station to transmit a first SRS. A first subframe is selected after the subframe in which the trigger is received which is both a WTRU-specific subframe and at least four subframes after the subframe in which the trigger is received. A determination if a maximum power is exceeded in a symbol in the selected first subframe is made. On a condition that the maximum power is not exceeded in the symbol in the selected first subframe, the first SRS is transmitted in the selected first subframe. On a condition that the maximum power is exceeded in the symbol in the selected first subframe and transmission of at least one channel type other than SRS-type at least partially overlaps in the symbol in the selected first subframe, the first SRS is dropped from the selected first subframe and the at least one channel type other than SRS-type is transmitted. On a condition that the maximum power is exceeded in the symbol in the selected first subfra…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.