Communication apparatus and communication method

A communication method for a communication apparatus participating in a wireless network built by another first communication apparatus, the communication method comprising:

• a first receiving step of receiving a Trigger frame from the other first communication apparatus in an Awake state of the communication apparatus, the Trigger frame permitting sharing of a first period, which is at least part of transmission opportunity (TXOP) acquired by the other first communication apparatus, with at least one communication apparatus participating in the wireless network for communication and conforming to IEEE 802.11 series standard;
• and
• a control step of causing the communication apparatus to make a transition from the Awake state to a Power save state during the first period if the communication apparatus is not permitted to share the first period in the Trigger frame received in the first receiving step.

A communication method for a communication apparatus playing a role of building a wireless network, the communication method comprising:

• a transmitting step of transmitting a Trigger frame to another communication apparatus participating in the wireless network built by the communication apparatus, the Trigger frame permitting sharing of a first period, which is at least part of transmission opportunity (TXOP) acquired by the communication apparatus, with at least one communication apparatus participating in the wireless network for communication and conforming to IEEE 802.11 series standard,
• wherein information indicating whether a communication apparatus that is not permitted to share the first period in the Trigger frame makes a transition to a Power save state is included in the Trigger frame.

A non-transitory computer readable storage medium that stores a program for causing a communication apparatus participating in a wireless network built by another first communication apparatus to perform operations comprising:

• a first receiving step of receiving a Trigger frame from the other first communication apparatus in an Awake state of the communication apparatus, the Trigger frame permitting sharing of a first period, which is at least part of transmission opportunity (TXOP) acquired by the other first communication apparatus, with at least one communication apparatus participating in the wireless network for communication and conforming to IEEE 802.11 series standard;
• and
• a control step of causing the communication apparatus to make a transition from the Awake state to a Power save state during the first period if the communication apparatus is not permitted to share the first period in the Trigger frame received in the first receiving step.

A non-transitory computer readable storage medium that stores a program for causing a communication apparatus playing a role of building a wireless network to perform operations comprising:

• a transmitting step of transmitting a Trigger frame to another communication apparatus participating in the wireless network built by the communication apparatus, the Trigger frame permitting sharing of a first period, which is at least part of transmission opportunity (TXOP) acquired by the communication apparatus, with at least one communication apparatus participating in the wireless network for communication and conforming to IEEE 802.11 series standard,
• wherein information indicating whether a communication apparatus that is not permitted to share the first period in the Trigger frame makes a transition to a Power save state is included in the Trigger frame.