Terminal apparatus, base station apparatus, and communication method reducing handover delay
US10966127B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 17, 2017 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Nov 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0866
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A terminal apparatus configures transmission timing for a PUSCH in a target cell based on first information included in a handover command received. The terminal apparatus initiates a random access procedure in a primary cell, at least in a case that an SR is pending, a UL-SCH resource is not available for transmission in a current subframe, and a valid PUCCH resource for the SR is not available in any one of subframes. The terminal apparatus does not initiate the random access procedure in the primary cell, in the case that the SR is pending, the UL-SCH resource is not available for the transmission in the current subframe, and the valid PUCCH resource for the SR is not available in any one of the subframes, and at least in a case that the first information is configured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.