Uplink interference management in time division duplex (TDD) network systems
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsPing Liu, Edwin Iun, Mihai Parvan
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Abstract
A system is provided. The system includes a plurality of network nodes for operating in a Time Division Duplex, TDD, network. The plurality of network nodes includes at least a network node and a first neighbor network node. The network node includes a node processor and node memory. The node memory contains instructions executable by the node processor. The first network node is configured to detect interference caused by the first neighbor network node in at least one uplink, UL, subframe, and determine a potential reason for the interference caused by the first neighbor network node.
Claims50
A network node for a Time Division Duplex, TDD, network, the network node comprising a processor and a memory, the memory containing instructions that when executed by the processor, cause the processor to:
- store a plurality of interference patterns corresponding to a plurality of potential reasons for interference, the plurality of potential reasons for interference including at least time misalignment and mode misconfiguration;
- detect an interference pattern caused by a first neighbor network node in at least one uplink, UL, subframe;
- and
- determine one of a plurality of potential reasons for the interference caused by the first neighbor network node based on matching the detected interference pattern with one of the plurality of stored interference patterns.
A system, the system comprising:
- a plurality of network nodes for operating in a Time Division Duplex, TDD, network, the plurality of network nodes including at least a network node and a first neighbor network node, the network node including a node processor (68) and node memory, the node memory containing instructions that, when executed by the node processor, causes the node processor to:
- store a plurality of interference patterns corresponding to a plurality of potential reasons for interference, the plurality of potential reasons for interference including at least time misalignment and mode misconfiguration;
- detect an interference pattern caused by the first neighbor network node in at least one uplink, UL, subframe;
- and
- determine one of a plurality of potential reasons for the interference caused by the first neighbor network node based on matching the detected interference pattern with one of the plurality of stored interference patterns.
A method for a network node in a Time Division Duplex, TDD, network, the method comprising:
- storing a plurality of interference patterns corresponding to a plurality of potential reasons for interference, the plurality of potential reasons for interference including at least time misalignment and mode misconfiguration;
- detecting an interference pattern caused by a first neighbor network node in at least one uplink, UL, subframe;
- and
- determining one of a plurality of potential reasons for the interference caused by the first neighbor network node based on matching the detected interference pattern with one of the plurality of stored interference patterns.
A network node for a Time Division Duplex, TDD, network, the network node comprising an interference detection circuit configured to:
- store a plurality of interference patterns corresponding to a plurality of potential reasons for interference, the plurality of potential reasons for interference including at least time misalignment and mode misconfiguration;
- determine an interference pattern caused by a first neighbor network node in at least one uplink, UL, subframe has been detected;
- and
- determine one of a plurality of potential reasons for the interference caused by the first neighbor network node based on matching the detected interference pattern with one of the plurality of stored interference patterns.
Dependencies are inferred from the claim text.