- Patent Title: Transmission mode with user equipment independent physical downlink shared channel scrambling for inter-cell and intra-cell PDSCH-to-PDSCH interference cancellation
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Application No.: US14787102Application Date: 2013-05-07
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Publication No.: US11240811B2Publication Date: 2022-02-01
- Inventor: Klaus Hugl , Panayiotis Papadimitriou , Cássio Ribeiro
- Applicant: NOKIA TECHNOLOGIES OY
- Applicant Address: FI Espoo
- Assignee: NOKIA TECHNOLOGIES OY
- Current Assignee: NOKIA TECHNOLOGIES OY
- Current Assignee Address: FI Espoo
- Agency: Squire Patton Boggs (US) LLP
- International Application: PCT/US2013/039873 WO 20130507
- International Announcement: WO2014/182285 WO 20141113
- Main IPC: H04W72/04
- IPC: H04W72/04 ; H04W72/08 ; H04J11/00

Abstract:
A method and apparatus for a transmission mode with user equipment (UE) independent physical downlink shared channel (PDSCH) scrambling for inter-cell and intra-cell PDSCH-to-PDSCH interference cancellation. A method may include configuring (610) a first identifier (e.g. first RNTI) for a first UE. The method may also include performing at least one of indicating (620) (e.g. semi-statically) a second identifier (e.g. PDSCH RNTI own) for the first UE, or indicating (630) (e.g. semi-statically) a third identifier (e.g. PDSCH RNTIJnt) for the first UE. The first identifier (e.g. first RNTI) is for at least one of operation of physical downlink control channel (PDCCH) of the first UE, or operation of PDSCH of the first UE if the second identifier (e.g. PDSCH RNTI own) is not indicated to the first UE; the second identifier (e.g. PDSCH RNTI own) is for at least one of scrambling or descrambling PDSCH of the first UE; and the third identifier (e.g. PDSCH RNTIJnt) is for at least one of scrambling or descrambling a PDSCH of a second (e.g. interfering) UE. The transmission of the second UE may cause interference on the reception of a PDSCH at the first UE.
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