Method of spatial sharing in wireless communications system

A method, comprising:

• generating a measurement request message requesting measurement on each channel included in a first channel to a first station (STA) apparatus and a second STA apparatus, in a case of spatial sharing between an existing service period (SP) on a second channel involving a third STA apparatus and a fourth STA apparatus and a Candidate SP on the first channel including the second channel involving the first STA apparatus and the second STA apparatus, wherein the measurement request message includes a measurement configuration subfield for indicating a method of reporting results of concurrent measurements using a plurality of RX antenna configurations;
• and
• transmitting the measurement request message to the first STA apparatus and the second STA apparatus, wherein:
• in case where a value of the measurement configuration subfield indicates a first method, the method comprising receiving the results of the concurrent measurements using the plurality of RX antenna configurations per antenna configuration;
• and
• in case where the value of the measurement configuration subfield indicates a second method, the method comprising receiving an averaged results of the concurrent measurements using the plurality of RX antenna configurations.

A station (STA) apparatus comprising:

• a receiver that, in operation, receives a measurement request message from a Personal basic service set Control Point/Access Point (PCP/AP) apparatus;
• a Physical Layer (PHY) processor that, in operation, performs measurement on each channel included in a first channel, including a second channel, with a communication partner involving in a candidate service period (SP) on the first channel according to the measurement request message;
• and
• a transmitter that, in operation, transmits results of measurements to the PCP/AP, wherein
• the measurement request message is a message requesting measurement on each channel included in the first channel, in a case of spatial sharing between an existing SP on the second channel involving a first STA apparatus and a second STA apparatus and the Candidate SP, and the measurement request message includes a measurement configuration subfield for indicating a method of reporting results of concurrent measurements using a plurality of RX antenna configurations, wherein:
• in case where a value of the measurement configuration subfield indicates a first method, the transmitter transmits the results of the concurrent measurements using the plurality of RX antenna configurations per antenna configuration, and
• in case where the value of the measurement configuration subfield indicates a second method, the transmitter transmits an averaged results of the concurrent measurements using the plurality of RX antenna configurations.

A method comprising:

• receiving a measurement request message from a Personal basic service set Control Point/Access Point (PCP/AP) apparatus;
• performing measurement on each channel included in a first channel, including a second channel, with a communication partner involving in a candidate service period (SP) on the first channel according to the measurement request message;
• and
• transmitting results of measurements to the PCP/AP, wherein
• the measurement request message is a message requesting measurement on each channel included in the first channel, in a case of spatial sharing between an existing SP on the second channel involving a first STA apparatus and a second STA apparatus and the Candidate SP, and the measurement request message includes a measurement configuration subfield for indicating a method of reporting results of concurrent measurements using a plurality of RX antenna configurations, wherein:
• in case where a value of the measurement configuration subfield indicates a first method, the transmitting includes transmitting the results of the concurrent measurements using the plurality of RX antenna configurations per antenna configuration;
• and
• in case where the value of the measurement configuration subfield indicates a second method, the transmitting includes transmitting an averaged results of the concurrent measurements using the plurality of RX antenna configurations.