Methods and apparatus for controlling uplink reference signal transmissions in a wireless communication network
US12323365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2020 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | May 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0096
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an example arrangement, a base station (16) serving a wireless device (14) controls the activation time for transmission by the wireless device (14) of aperiodic or semipersistent Sounding Reference Signals (SRS), but accounts for an activation-time recommendation made by a location server (20) with which the serving base station (16) provides its timing information. The arrangement allows the location server (20), which has a view of the overall timeline, to recommend an activation time while still leaving the serving base station (16) in control of the activation time, which the serving base station (16) shares with the location server (20). In turn, the location server (20) uses the activation time to configure neighboring base stations (16), for example, for coordinated reception of the SRS, for positioning the device (14) via Uplink Observed Time Difference of Arrival (UTDOA) determinations. Activation of the SRS provides, for example, increased SRS density as compared to any ongoing periodic SRS transmissions performed by the wireless device (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.