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EP-4742791-A1 - ACCESS POINT, TERMINAL, AND COMMUNICATION METHOD

EP4742791A1EP 4742791 A1EP4742791 A1EP 4742791A1EP-4742791-A1

Abstract

An access point according to the present invention comprises: a control circuit that determines one control signal including information relating to a plurality of time resources used for transmitting each of a plurality of uplink response signals; and a transmission circuit that transmits the control signal.

Inventors

  • TAKATA, TOMOFUMI
  • URABE, YOSHIO
  • IWAI, TAKASHI
  • MOTOZUKA, HIROYUKI

Assignees

  • Panasonic Intellectual Property Corporation of America

Dates

Publication Date
20260513
Application Date
20240619

Claims (15)

  1. An access point, comprising: control circuitry, which, in operation, determines one control signal including information related to a plurality of time resources used for transmission of a plurality of uplink response signals, respectively; and transmission circuitry, which, in operation, transmits the control signal.
  2. The access point according to claim 1, wherein the plurality of time resources are consecutive time resources, and a duration of each of the plurality of time resources is a duration indicated by the control signal.
  3. The access point according to claim 1, wherein the plurality of time resources are time resources separated from each other by a defined time interval, and a duration of each of the plurality of time resources is a duration indicated by the control signal.
  4. The access point according to claim 1, wherein an ACK or a block ACK is positioned between the plurality of time resources, and a duration of each of the plurality of time resources is a duration indicated by the control signal.
  5. The access point according to claim 1, wherein the plurality of time resources are consecutive time resources, and a duration of each of the plurality of time resources has a length obtained by dividing a duration indicated by the control signal by a number of the plurality of time resources.
  6. The access point according to claim 1, wherein the plurality of time resources are time resources separated from each other by a defined time interval, and a duration of each of the plurality of time resources has a length obtained by dividing a duration indicated by the control signal by a number of the plurality of time resources.
  7. The access point according to claim 1, wherein one or some of the plurality of time resources overlap, and a duration of each of the plurality of time resources is a duration indicated by the control signal or has a length obtained by dividing the duration indicated by the control signal by a number of the plurality of time resources.
  8. The access point according to claim 1, wherein formats of the plurality of uplink response signals respectively transmitted on the plurality of time resources vary.
  9. The access point according to claim 1, wherein for a certain frequency resource, a terminal that uses each of the plurality of time resources and a transmission parameter for each of the plurality of time resources are individually configured.
  10. The access point according to claim 1, wherein a number of the plurality of time resources is indicated in a User Info field in which a specific AID is configured, in a User Info List.
  11. The access point according to claim 1, wherein one or some of the plurality of time resources are used by a terminal satisfying a predefined condition.
  12. The access point according to claim 1, wherein a backoff counter for random access is controlled for each of the plurality of time resources.
  13. A terminal, comprising: reception circuitry, which, in operation, receives one control signal including information related to a plurality of time resources used for transmission of a plurality of uplink response signals, respectively; and control circuitry, which, in operation, controls transmission of the plurality of uplink response signals based on the control signal.
  14. A communication method, comprising: determining, by an access point, one control signal including information related to a plurality of time resources used for transmission of a plurality of uplink response signals, respectively; and transmitting, by the access point, the control signal.
  15. A communication method, comprising: receiving, by a terminal, one control signal including information related to a plurality of time resources used for transmission of a plurality of uplink response signals, respectively; and controlling, by the terminal, transmission of the plurality of uplink response signals based on the control signal.

Description

Technical Field The present disclosure relates to an access point, a terminal, and a communication method. Background Art As a successor to IEEE 802.11ax (hereinafter, referred to as "11ax"), which is a standard of IEEE 802.11, the Institute of Electrical and Electronics Engineers (IEEE) is proceeding with the development of technical specifications for IEEE 802.11be (hereinafter, referred to as "11be"). 11ax is also referred to as "High Efficiency (HE)," and 11be is also referred to as "Extremely High Throughput (EHT)." In addition, in an Ultra High Reliability (UHR) Study Group (SG), discussions on requirements specification for a successor standard to 11be (hereinafter, referred to as "UHR") are in progress. Citation List Non-Patent Literature (hereinafter, referred to as "NPL") NPL 1 IEEE 802.11-22/1923r1, Enhanced Trigger-Based Uplink TransmissionNPL 2 IEEE 802.11-22/1393r0, Latency Reduction Scheme for UHRNPL 3 IEEE P802.11be/D3.0 Summary of Invention However, a method for controlling signal transmission in radio communication such as a wireless Local Area Network (LAN) has not been sufficiently studied. Anon-limiting embodiment of the present disclosure facilitates providing an access point, a terminal, and a communication method each capable of improving the efficiency of transmission control in radio communication. An access point according to an embodiment of the present disclosure includes: control circuitry, which, in operation, determines one control signal including information related to a plurality of time resources used for transmission of a plurality of uplink response signals, respectively; and transmission circuitry, which, in operation, transmits the control signal. It should be noted that general or specific embodiments may be implemented as a system, an apparatus, a method, an integrated circuit, a computer program, a storage medium, or any selective combination thereof. According to an embodiment of the present disclosure, it is possible to improve the efficiency of transmission control in radio communication, for example. Additional benefits and advantages of the disclosed embodiments will become apparent from the specification and drawings. The benefits and/or advantages may be individually obtained by the various embodiments and features of the specification and drawings, which need not all be provided in order to obtain one or more of such benefits and/or advantages. Brief Description of Drawings FIG. 1 is a diagram illustrating an example of a Trigger frame;FIG. 2 is a diagram illustrating an example of a Common Info field;FIG. 3 is a diagram illustrating an example of a User Info field;FIG. 4 is a diagram illustrating a configuration example of a Special User Info field;FIG. 5 is a diagram illustrating an example of an Association ID (AID) 12 subfield;FIG. 6 is a diagram illustrating an example of uplink orthogonal frequency division multiple access (OFDMA)-based random access (UORA);FIG. 7 is a diagram illustrating an example of a PHY protocol data unit (PPDU);FIG. 8 is a block diagram illustrating a configuration example of a part of an access point (AP);FIG. 9 is a block diagram illustrating a configuration example of a part of a terminal;FIG. 10 is a diagram illustrating an example of configuring a plurality of time resources;FIG. 11 is another diagram illustrating the example of configuring a plurality of time resources;FIG. 12 is still another diagram illustrating the example of configuring a plurality of time resources;FIG. 13 is still another diagram illustrating the example of configuring a plurality of time resources;FIG. 14 is still another diagram illustrating the example of configuring a plurality of time resources;FIG. 15 is still another diagram illustrating the example of configuring a plurality of time resources;FIG. 16 is still another diagram illustrating the example of configuring a plurality of time resources;FIG. 17 is still another diagram illustrating the example of configuring a plurality of time resources;FIG. 18 is still another diagram illustrating the example of configuring a plurality of time resources;FIG. 19 is still another diagram illustrating the example of configuring a plurality of time resources;FIG. 20 is a block diagram illustrating a configuration example of an AP;FIG. 21 is a block diagram illustrating a configuration example of a terminal;FIG. 22 is a diagram illustrating an example of a method for signaling a time resource;FIG. 23 is another diagram illustrating the example of the method for signaling a time resource;FIG. 24 is still another diagram illustrating the example of the method for signaling a time resource;FIG. 25 is still another diagram illustrating the example of the method for signaling a time resource;FIG. 26 is still another diagram illustrating the example of the method for signaling a time resource;FIG. 27 is still another diagram illustrating the example of the method for signaling a time resource;FIG. 28 is still