Invention Grant
- Patent Title: Methods and arrangements in a wireless communications system
- Patent Title (中): 无线通信系统中的方法和布置
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Application No.: US12933594Application Date: 2008-12-10
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Publication No.: US08441938B2Publication Date: 2013-05-14
- Inventor: Markus Ringström , Dirk Gerstenberger , Johan Bergman
- Applicant: Markus Ringström , Dirk Gerstenberger , Johan Bergman
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- International Application: PCT/SE2008/051434 WO 20081210
- International Announcement: WO2009/116916 WO 20090924
- Main IPC: H04L12/00
- IPC: H04L12/00 ; H04J9/00

Abstract:
The present invention relates to methods and arrangements for uplink retransmissions from a user equipment to a radio base station in a UTRAN with enhanced uplink. The UE transmits a subframe comprising physical control channel(s) and physical data channel(s) in an initial transmission. According to the present invention, one or more of the physical control channels are transmitted with a lower transmission power level in all or some of the retransmitted subframes in the uplink. This results in reduced control overhead (a smaller part of the transmission power resource is used for control signaling) and thus reduced interference from the overhead. At the same time, the transmission power resource no longer used for the physical control channel information, can be used to increase the transmission power level of the physical data channel information in these retransmitted subframes, which improves the uplink coverage.
Public/Granted literature
- US20110014907A1 METHODS AND ARRANGMENTS IN A WIRELESS COMMUNICATIONS SYSTEM Public/Granted day:2011-01-20
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