Transmission Mode with User Equipment Independent Physical Downlink Shared Channel Scrambling for Inter-cell and Intra-cell PDSCH-to-PDSCH Interference Cancellation

An apparatus, comprising:

• at least one processor;
• and
• at least one memory including computer program code,
• wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to
• configure a first identifier for a first user equipment;
• and
• perform at least one of indicating a second identifier for the first user equipment, or indicating a third identifier for the first user equipment,
• wherein the first identifier is for at least one of operation of physical downlink control channel (PDCCH) of the first user equipment, or operation of physical downlink shared channel (PDSCH) of the first user equipment if the second identifier is not indicated to the first user equipment;
• the second identifier is for at least one of scrambling or descrambling a physical downlink shared channel (PDSCH) of the first user equipment;
• and the third identifier is for at least one of scrambling or descrambling a physical downlink shared channel (PDSCH) of a second user equipment, wherein the transmission to the second user equipment is expected to cause interference to the reception of a physical downlink shared channel (PDSCH) of the first user equipment.

An apparatus, comprising:

• at least one processor;
• and
• at least one memory including computer program code,
• wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to
• receive, at a first user equipment, a first identifier;
• and
• receive, at the first user equipment, at least one of a second identifier, or a third identifier,
• wherein the first identifier is for at least one of operation of physical downlink control channel (PDCCH) of a first user equipment, or operation of physical downlink shared channel (PDSCH) of the first user equipment if the second identifier is not indicated to the first user equipment;
• the second identifier is for at least one of scrambling or descrambling a physical downlink shared channel (PDSCH) of the first user equipment;
• and the third identifier is for at least one of scrambling or descrambling a physical downlink shared channel (PDSCH) of a second user equipment, wherein the transmission to the second user equipment is expected to cause interference to the reception of a physical downlink shared channel (PDSCH) of the first user equipment.

A method, comprising:

• receiving, at a first user equipment, a first identifier;
• and
• receiving, at the first user equipment, at least one of a second identifier, or a third identifier,
• wherein the first identifier is for at least one of operation of physical downlink control channel (PDCCH) of the first user equipment, or operation of physical downlink shared channel (PDSCH) of the first user equipment if the second identifier is not indicated to the first user equipment;
• the second identifier is for at least one of scrambling or descrambling a physical downlink shared channel (PDSCH) of the first user equipment;
• and the third identifier is for at least one of scrambling or descrambling a physical downlink shared channel (PDSCH) of a second user equipment, wherein the transmission to the second user equipment is expected to cause interference to the reception of a physical downlink shared channel (PDSCH) of the first user equipment.