Network assisted interference mitigation
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsShaohua Li, George Jöngren, Fredrik Nordström, Stefania Sesia
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Abstract
According to some embodiments, a method performed by a network node (115A) for providing interference mitigation assistance to a wireless device (110C) includes associating demodulation reference signal (DMRS) sequence information with at least one transmission parameter that applies to the DMRS sequence information. An indication of the association of the DRMS sequence information with the at least one transmission parameter is transmitted to the wireless device (110C) for use in performing mitigation of an interfering signal from a first transmission point (115A or 115B).
Claims26
A method performed by a network node for providing interference mitigation assistance to a wireless device, comprising:
- associating demodulation reference signal (DMRS) sequence information with at least one transmission parameter that applies to the DMRS sequence information;
- and
- transmitting an indication of the association of the DMRS sequence information with the at least one transmission parameter to the wireless device for use in performing mitigation of an interfering signal from a first transmission point.
A method performed by a wireless device for performing interference mitigation, comprising:
- receiving, from a network node, an indication of an association of demodulation reference signal (DMRS) sequence information with at least one transmission parameter that applies to the DMRS sequence information;
- identifying an interfering signal transmitted from a first transmission point;
- detecting one or more DMRS parameters of the interfering signal;
- based on the indication of the association of the DMRS sequence information to the at least one transmission parameter, identifying that the at least one transmission parameter is associated with the detected one or more DMRS parameters of the interfering signal;
- and
- using the at least one transmission parameter to perform interference mitigation of the interfering signal.
A network node for providing interference mitigation assistance to a wireless device, comprising:
- memory containing executable instructions;
- and
- one or more processors in communication with the memory, the one or more processors operable to execute the instructions to cause the first network node to:
- associate demodulation reference signal (DMRS) sequence information with at least one transmission parameter that applies to the DMRS sequence information;
- and
- transmit an indication of the association of the DMRS sequence information with the at least one transmission parameter to the wireless device for use in performing mitigation of an interfering signal from a first transmission point.
A wireless device for performing interference mitigation, comprising:
- memory containing executable instructions;
- and
- one or more processors in communication with the memory, the one or more processors operable to execute the instructions to cause the wireless device to:
- receive, from the network node, an indication of an association of demodulation reference signal (DMRS) sequence information with at least one transmission parameter that applies to the DMRS sequence information;
- identify an interfering signal transmitted from a first transmission point;
- detect one or more DMRS parameters of the interfering signal;
- based on the indication of the association of the DMRS sequence information to the at least one transmission parameter, identifying that the at least one transmission parameter is associated with the detected one or more DMRS parameters of the interfering signal;
- and
- use the at least one transmission parameter to perform interference mitigation of the interfering signal.
Dependencies are inferred from the claim text.