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US 11,696,324 B2Granted
Communication apparatus and communication method
AssigneePanasonic Intellectual Property Corporation of America
InventorsTakashi Iwai, Yoshio Urabe, Tomohumi Takata
Life of this patent
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Abstract
In an AP, a Trigger frame generator generates a trigger signal instructing an uplink signal transmission, the trigger signal including a terminal information field that includes a terminal ID subfield and a resource unit allocation information subfield, and a radio transmitter/receiver transmits the trigger signal. In a case where the trigger signal includes a first terminal information field specifying one or more contiguous resource units for random access, the Trigger frame generator sets an unused ID that is not to be used as a terminal ID in the first terminal information field.
Claims6
A communication apparatus, comprising:
- a receiver which, in operation, receives a trigger frame comprising a first User Information field, a second User Information field, and a third User Information field, the first User Information field comprising a first terminal ID subfield and a first Resource Unit (RU) Allocation subfield, the second User Information field comprising a second terminal ID subfield and a second RU Allocation subfield, and the third User Information field comprising a third terminal ID subfield and a third RU Allocation subfield,
- wherein a first value other than a value used for a terminal ID is set to the first terminal ID subfield for Random Access of a station associated with an access point, the first RU Allocation subfield indicates a first starting RU of one or more first contiguous Random Access RUs (RA-RUs), and the first User Information field further comprises a first number of RA-RU subfield indicating a first number of RUs in the one or more first contiguous RA-RUs,
- a second value other than a value used for a terminal ID is set to the second terminal ID subfield for Random Access of a station unassociated with the access point, the second RU Allocation subfield indicates a second starting RU of one or more second contiguous RA-RUs, and the second User Information field further comprises a second number of RA-RU subfield indicating a second number of RUs in the one or more second contiguous RA-RUs, and
- a third value used for a terminal ID is set to the third terminal ID subfield for Scheduled Access of a station associated with the access point, and all of User Information fields for Scheduled Access including the third User Information field precede all of User Information fields for Random Access including the first User Information field and the second User Information field in the trigger frame;
- and
- a transmitter,
- wherein, in a first case where the communication apparatus is associated with the access point, the transmitter transmits an uplink signal using at least one of the one or more first contiguous RA-RUs, and,
- in a second case where communication apparatus is unassociated with the access point, the transmitter transmits an uplink signal using at least one of the one or more second contiguous RA-RUs.
5 more elements
A communication method implemented by a communication apparatus, the communication method comprising:
- receiving a trigger frame comprising a first User Information field, a second User Information field, and a third User Information field, the first User Information field comprising a first terminal ID subfield and a first Resource Unit (RU) Allocation subfield, the second User Information field comprising a second terminal ID subfield and a second RU Allocation subfield, and the third User Information field comprising a third terminal ID subfield and a third RU Allocation subfield,
- wherein a first value other than a value used for a terminal ID is set to the first terminal ID subfield for Random Access of a station associated with an access point, the first RU Allocation subfield indicates a first starting RU of one or more first contiguous Random Access RUs (RA-RUs), and the first User Information field further comprises a first number of RA-RU subfield indicating a first number of RUs in the one or more first contiguous RA-RUs,
- a second value other than a value used for a terminal ID is set to the second terminal ID subfield for Random Access of a station unassociated with the access point, the second RU Allocation subfield indicates a second starting RU of one or more second contiguous RA-RUs, and the second User Information field further comprises a second number of RA-RU subfield indicating a second number of RUs in the one or more second contiguous RA-RUs, and
- a third value used for a terminal ID is set to the third terminal ID subfield for Scheduled Access of a station associated with the access point, and all of User Information fields for Scheduled Access including the third User Information field precede all of User Information fields for Random Access including the first User Information field and the second User Information field in the trigger frame;
- in a first case where the communication apparatus is associated with the access point, transmitting an uplink signal using at least one of the one or more first contiguous RA-RUs;
- and
- in a second case where communication apparatus is unassociated with the access point, transmitting an uplink signal using at least one of the one or more second contiguous RA-RUs.
4 more elements
Dependencies are inferred from the claim text.