METHODS AND DEVICES FOR ALLOCATING SCRAMBLING CODES
摘要
Methods and devices are provided whereby scrambling codes can be set in an improved way. In accordance with one embodiment a method is provided in a User Equipment for generating a second scrambling code or a second scrambling code group. The UE is configured for multi carrier operation receiving downlink transmission from a Universal Mobile Telecommunications System Terrestrial Radio Access Network on a set of at least two downlink carriers including an anchor carrier and at least a first secondary carrier. The method comprises determining a first scrambling code or a first scrambling code group associated with a first cell on the anchor carrier; and deriving a second scrambling code or a second scrambling code group associated with a second cell on said first secondary carrier using a predefined rule defining the relation between the second scrambling code or second scrambling code group and the first scrambling code or scrambling code group. Hereby interference suppression / cancellation processing is enabled in a receiver of a UE on secondary cells in multi-carrier scenarios that do not transmit the SCH, while minimizing the need for overhead in terms of signaling of the scrambling codes for neighbouring cells in a UTRAN system. Methods and devices for E-UTRAN are also described.
申请公布号
WO2011059379(A2)
申请公布日期
2011.05.19
申请号
WO2010SE51193
申请日期
2010.11.03
申请人
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);DRUGGE, OSKAR;KAZMI, MUHAMMAD;REIAL, ANDRES;CAIRNS, DOUGLAS, A.
发明人
DRUGGE, OSKAR;KAZMI, MUHAMMAD;REIAL, ANDRES;CAIRNS, DOUGLAS, A.