Method and device for indicating data re-transmission when area switching in LTE system
US8797998B2 · kind B2 · utility
4Cited by
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3Claims
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Key dates
| Filing date | Sep 2, 2008 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Sep 22, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and device for indicating data re-transmission when area switching in LTE system, wherein the method comprises the following steps: S_eNB sends PDCP-SDU CN report to T_eNB in order to announce PDCP-SDU SN received, and T_eNB announces PDCP-SDU SN received by S_eNB to UE. Thereby, UE would not re-transmit PDCP-SDU corresponding to received SN, which avoids re-transmission of useless PDCP-SDU, and saves radio resources comparing with prior solutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.