Method for antenna selection of user equipment

A method for antenna selection of a user equipment (UE);

• the UE comprising a plurality of antennas for wireless communication, the method being executed by the UE, and the method comprising:
• executing a quality evaluation step which comprises:
• calculating one or more quality evaluations respectively associated with one or more first antenna subsets;
• executing a preliminary selection step which comprises:
• selecting one of the one or more first antenna subsets according to the one or more quality evaluations;
• and
• executing an advanced selection step after executing the preliminary selection step;
• wherein:
• each of the one or more first antenna subsets includes one or more of the plurality of antennas;
• each of the one or more quality evaluations, being associated with one of the one or more first antenna subsets, is calculated under a condition that the one or more of the plurality of antennas included in the associated first antenna subset are used to communicate;
• and
• the advanced selection step comprises:
• from a candidate pool which comprises one or more second antenna subsets, selecting one of the one or more second antenna subsets according to one or more parameter evaluations;
• wherein the one or more parameter evaluations are associated with the one or more second antenna subsets respectively, and each of the one or more second antenna subsets includes one or more of the plurality of antennas;
• and
• wherein the preliminary selection step further comprises:
• after selecting the one of the one or more first antenna subsets according to the one or more quality evaluations, including the selected one of the one or more first antenna subsets in the candidate pool.

A method for antenna selection of a user equipment (UE);

• the UE comprising a plurality of antennas for wireless communication, the method being executed by the UE, and the method comprising:
• executing a quality evaluation step which comprises:
• calculating one or more quality evaluations respectively associated with one or more first antenna subsets;
• executing a preliminary selection step which comprises:
• selecting one of the one or more first antenna subsets according to the one or more quality evaluations;
• and
• after selecting the one of the one or more first antenna subsets according to the one or more quality evaluations, iterating the quality evaluation step and the preliminary selection step by:
• calculating one or more next-level quality evaluations respectively associated with one or more next-level antenna subsets;
• and
• according to the one or more next-level quality evaluations, selecting one of the one or more next-level antenna subsets;
• wherein:
• each of the one or more first antenna subsets includes one or more of the plurality of antennas;
• each of the one or more next-level antenna subsets includes one or more of the plurality of antennas;
• each of the one or more quality evaluations, being associated with one of the one or more first antenna subsets, is calculated under a condition that the one or more of the plurality of antennas included in the associated first antenna subset are used to communicate;
• each of the one or more next-level quality evaluations, being associated with one of the one or more next-level antenna subsets, is calculated under a condition that the one or more of the plurality of antennas included in the associated next-level antenna subset are used to communicate;
• and
• a count of the one or more of the plurality of antennas included in each of the one or more next-level antenna subsets is not greater than a count of the one or more of the plurality of antennas included in the selected one of the one or more first antenna subsets.

A method for antenna selection of a user equipment (UE);

• the UE comprising a plurality of antennas for wireless communication, the method being executed by the UE, and the method comprising:
• executing a quality evaluation step which comprises:
• calculating one or more quality evaluations respectively associated with one or more first antenna subsets;
• executing a preliminary selection step which comprises:
• selecting one of the one or more first antenna subsets according to the one or more quality evaluations;
• monitoring one or more reception qualities;
• and
• before executing the quality evaluation step and the preliminary selection step, determining whether to execute the quality evaluation step and the preliminary selection step according to the one or more reception qualities;
• wherein:
• each of the one or more first antenna subsets includes one or more of the plurality of antennas;
• and
• each of the one or more quality evaluations, being associated with one of the one or more first antenna subsets, is calculated under a condition that the one or more of the plurality of antennas included in the associated first antenna subset are used to communicate.