Wireless communication method using trigger information, and wireless communication terminal using same
AssigneesWilus Institute of Standards and Technology Inc., SK Telecom Co., Ltd.
InventorsWoojin Ahn, Juhyung Son, Geonjung Ko, Jinsam Kwak
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Abstract
Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes: a transceiver; and a processor. The processor receiving trigger information from a base wireless communication terminal using the transceiver, and transmits an Aggregate-MAC Protocol Data Unit (A-MPDU) to the base wireless communication terminal based on the trigger information.
Claims14
A wireless communication terminal communicating wirelessly, the wireless communication terminal comprising:
- a transceiver;
- and
- a processor, wherein the processor is configured to:
- receive trigger information from a base wireless communication terminal using the transceiver, wherein the trigger information triggers a transmission of a trigger-based physical layer protocol data unit (PPDU) by the wireless communication terminal, wherein when the trigger information is included in a trigger frame, the trigger frame comprises a traffic identifier (TID} Aggregation Limit field in a User Info field corresponding to the wireless communication terminal, wherein the TID Aggregation Limit field indicates whether aggregating one or more MAC Protocol Data Unit (MPDUs) requesting an immediate response to generate an Aggregate-MAC Protocol Data Unit (A-MPDU) is allowed and indicates a maximum number of TIDs that is allowed to be aggregated in the A-MPDU when the wireless communication terminal generates the A-MPDU,
- when a value of the TID Aggregation Limit field is a predetermined value, generate the A-MPDU not to include one or more MPDUs requesting an immediate response,
- wherein the predetermined value is 0, when the value of the TID Aggregation Limit field is within a predetermined range, generate the A-MPDU according to the maximum number of TIDs, and
- transmit the trigger-based PPDU including the A-MPDU to the base wireless communication terminal.
A base wireless communication terminal communicating wirelessly, the base wireless communication terminal comprising:
- a transceiver;
- and
- a processor, wherein the processor is configured to:
- generate trigger information to a plurality of wireless communication terminals using the transceiver, wherein the trigger information triggers a transmission of a trigger-based physical layer protocol data unit (PPDU) by each of the plurality of wireless communication terminals and is included in a trigger frame which includes a traffic identifier (TID) Aggregation Limit field in a User Info field, wherein the TID Aggregation Limit field indicates whether aggregating one or more MPDUs requesting an immediate response to generate an Aggregate-MAC Protocol Data Unit (A-MPDU) is allowed and indicates a maximum number of TIDs that is allowed to be aggregated in the A-MPDU when the A-MPDU is generated,
- when a wireless communication terminal corresponding to the User Info field is not allowed to aggregate one or more MPDUs requesting an immediate response to generate the A-MPDU, set a value of the TID Aggregation Limit field to a predetermined value, wherein the predetermined value is 0,
- when the wireless communication terminal corresponding to the User Info field is allowed to aggregate one or more MPDUs requesting an immediate response to generate the A-MPDU, set the value of the TID Aggregation Limit field according to the maximum number of TIDS,
- transmit the trigger frame, and
- receive the trigger-based PPDU including the A-MPDU from at least one of the plurality of wireless communication terminals,
- wherein one or more MPDUs requesting an immediate response are aggregated or not, based on the TID Aggregation Limit field, in the A-MPDU.
Dependencies are inferred from the claim text.