Method and apparatus with antenna selection in a communication system
AssigneeIndustrial Technology Research Institute
InventorsChao-Yuan Hsu, Jiann-Ching Guey, Tzu-Jane Tsai
Life of this patent
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Abstract
According to an exemplary embodiment, a method with antenna selection in a communication system may support an antenna selection function at a central node having a plurality of antennas; and co-schedule multiple distributed nodes to the same resource in a downlink channel from the central node to the multiple distributed nodes by using multiple precoders related to the multiple distributed nodes to provide a system performance gain; wherein the multiple precoders are under one of conditions of partially overlapped antenna selection, non-overlapped antenna selection, and fully overlapped antenna selection.
Claims23
A method with antenna selection in a communication system having multiple distributed nodes and a central node equipped with a plurality of antennas, comprising:
- supporting an antenna selection scheme from said plurality of antennas at said central node;
- and
- co-scheduling the multiple distributed nodes to a same resource in a downlink channel from the central node to multiple co-scheduled distributed nodes by using multiple precoders related to the multiple co-scheduled distributed nodes to provide a performance gain;
- wherein the method further includes a precoder design and a corresponding signaling procedure to complete an assignment of the multiple precoders for the multiple co-scheduled distributed nodes, and the precoder design is based on one of conditions of partially overlapped antenna selection, non-overlapped antenna selection, and fully overlapped antenna selection.
A central node supporting an antenna selection function in a communication system, and equipped with a plurality of antennas, comprising:
- a transceiver circuit for transmitting and receiving a plurality of signals to and from multiple distributed nodes;
- a converter configured to perform a format conversion between one or more digital signals and one or more analog signals from the multiple distributed nodes to the central node or from the central node to the multiple distributed nodes;
- and
- a processing circuit that determines multiple priorities of the multiple distributed nodes, assigns an overlapped part of each of multiple precoders of the multiple distributed nodes when the overlapped part is decided at the central node, and receives the signals related to a non-overlapped part of the precoders from all co-scheduled distributed nodes of the multiple distributed nodes.
A distributed node with an antenna selection mechanism in a communication system, and equipped with a plurality of antennas, comprising:
- a transceiver circuit for transmitting and receiving a plurality of signals to and from a central node;
- a converter configured to perform a format conversion between one or more digital signals and one or more analog signals from the distributed node to the central node or from the central node to the distributed node;
- and
- a processing circuit that determines an overlapped part or a non-overlapped part of a precoder for the distributed node, and receives and transmits one or more signals related to determining the precoder.
Dependencies are inferred from the claim text.